Optimizaciones y mejoras de Premake.

Cambiar un par de cosas y hacer abstractos los postbuildcommands.

.gitignore

@@ -1,5 +1,6 @@
 #Directorios:
 .vs
+.vscode
 bin/
 bin-obj/
 
@@ -9,3 +10,5 @@ imgui.ini
 *.vcxproj
 *.filters
 *.sln
+*.make
+Makefile

GenProject.sh

@@ -0,0 +1,2 @@
+#!/bin/bash
+premake/premake5 gmake2

README.md

@@ -39,3 +39,6 @@ Repositorio principal de UberEngine. Sin mucho más.
 
 ### JSON / AssetManager 
  - [ ] Crear un sistema sencillo (un método o algo común para todas las veces que sea necesario) para añadir seguridad al parse y uso de los JSON. De tal forma que se devuelva el error por consola pero no salten exepciones ni mierdas.
+
+### Sistema de Escenas.
+ - [ ] Revisar los métodos para carga/descarga y de cambio de escenas. Creo que se pueden estructurar mejor.

UberEngine/src/Assets/Asset.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <json\json.hpp>
+#include <json/json.hpp>
 using json = nlohmann::ordered_json;
 
 #include <SDL_rect.h>
@@ -33,7 +33,7 @@ namespace UE
         AssetType _type = AssetType::Unvalid;
     };
 
-	/* Conversión de una struct Asset a JSON */
+    /* Conversi�n de una struct Asset a JSON */
     inline void to_json(nlohmann::ordered_json& j, const Asset& as)
     {
         j = nlohmann::ordered_json
@@ -44,7 +44,7 @@ namespace UE
         };
     }
 
-	/* Conversión de un JSON a una struct Asset */
+    /* Conversi�n de un JSON a una struct Asset */
     inline void from_json(const nlohmann::ordered_json& j, Asset& as)
     {
         j.at("name").get_to(as._name);
@@ -56,10 +56,10 @@ namespace UE
 
 //---------------
 //Es necesario hacerlo fuera del namespace UE para que JSON no se enfade.
-// Es importante mantener a tus librerías contentas.
+// Es importante mantener a tus librer�as contentas.
 //---------------
 
-/* Conversión de un Struct SDL_Rect a JSON */
+/* Conversi�n de un Struct SDL_Rect a JSON */
 inline void to_json(nlohmann::ordered_json& j, const SDL_Rect& rect)
 {
     j = nlohmann::ordered_json
@@ -71,7 +71,7 @@ inline void to_json(nlohmann::ordered_json& j, const SDL_Rect& rect)
     };
 }
 
-/* Conversión de un JSON a un struct SDL_Rect */
+/* Conversi�n de un JSON a un struct SDL_Rect */
 inline void from_json(const nlohmann::ordered_json& j, SDL_Rect& rect)
 {
     j.at("posX").get_to(rect.x);

UberEngine/src/Assets/AssetManager.cpp

@@ -1,8 +1,8 @@
-#include <fstream>
+#include <fstream>
 #include <iostream>
 
-#include "Logging\Logger.h"
-#include "Assets\AssetManager.h"
+#include "Logging/Logger.h"
+#include "Assets/AssetManager.h"
 
 
 #include "SDL_rect.h"
@@ -12,24 +12,6 @@ namespace UE
 
     void AssetManager::InitAssetManager()
     {
-		if (IMG_Init(IMG_INIT_PNG))
-		{
-			UE_LOG_INFO("SDL_Image Init.");
-		}
-		else
-		{
-			UE_LOG_ERROR("SDL_Image - Error al inicarse: {0}", IMG_GetError());
-		}
-
-		if (!TTF_Init()) //Retorna 0 si está correcto.
-		{
-			UE_LOG_INFO("SDL_TTF se ha inicializado correctamente.");
-		}
-		else
-		{
-			UE_LOG_ERROR("SDL_TTF - Error al inicarse: {0}", TTF_GetError());
-		}
-
         UE_LOG_INFO("AssetManager Iniciado con éxito.");
     }
 
@@ -52,15 +34,10 @@ namespace UE
         _assetQueue.clear();
         _textures.clear();
 
-
-		IMG_Quit();
-
         UE_LOG_INFO("AssetManager Cleaned");
     }
 
 
-
-
     void AssetManager::LoadAssetsFromFile(std::string filePath)
     {
         std::fstream file(filePath.c_str());

UberEngine/src/Assets/AssetManager.h

@@ -1,7 +1,5 @@
 #pragma once
 
-#pragma once
-
 /*STD Includes*/
 #include <filesystem>
 #include <deque>
@@ -13,9 +11,9 @@
 #include <SDL_image.h>
 
 /*UberEngine Includes*/
-#include "Assets\Asset.h"
-#include "Assets\Texture.h"
-#include "Assets\Font.h"
+#include "Assets/Asset.h"
+#include "Assets/Texture.h"
+#include "Assets/Font.h"
 
 using json = nlohmann::ordered_json;
 
@@ -24,9 +22,9 @@ using json = nlohmann::ordered_json;
 /// TODO:
 ///  - Modificar las funciones de Carga para quitar la queue o implementar una que tenga sentido.
 ///      Por ejemplo, se puede crear una cola (std::deque) y cargar un asset cada gameLoop en vez de
-///		 procesar toda la cola de golpe. Optimizaría la carga de assets.
-///	 - Terminar la implementación del tipo de carga (queue/now).
-///  - Modificar los for en la carga de archivo, así como la estructura del archivo JSON. El tipo de Asset está repetido.
+///      procesar toda la cola de golpe. Optimizar�a la carga de assets.
+///  - Terminar la implementaci�n del tipo de carga (queue/now).
+///  - Modificar los for en la carga de archivo, as� como la estructura del archivo JSON. El tipo de Asset est� repetido.
 ///  - Logging.
 ///  - ERROR HANDLING
 ///  - More asset types.
@@ -61,19 +59,19 @@ namespace UE
         /* Carga de Assets */
     
         /**
-		 * Carga los datos de los Assets desde un fichero JSON según parámetros.
+         * Carga los datos de los Assets desde un fichero JSON seg�n par�metros.
          * 
-		 * \param filePath: Ubicación del archivo JSON.
-		 * \param loadMethod: Forma de carga. Procesado al momento o añadido a la cola de carga.
+         * \param filePath: Ubicaci�n del archivo JSON.
+         * \param loadMethod: Forma de carga. Procesado al momento o a�adido a la cola de carga.
          * 
          */
         void LoadAssetsFromFile(std::string filePath);
 
         /**
-		 * Carga el Asset pasado por parámetro.
+         * Carga el Asset pasado por par�metro.
          * 
          * \param as: Asset que cargar.
-		 * \param loadMethod: Forma de carga. Procesado al momento o añadido a la cola de carga.
+         * \param loadMethod: Forma de carga. Procesado al momento o a�adido a la cola de carga.
          * 
          */
         void LoadAsset(Asset& as);
@@ -82,7 +80,7 @@ namespace UE
         /**
          * Procesa la cola de carga de Assets.
          *
-		 * \param Amount: Número de Assets de la cola a procesar. Si vale -1 se procesarán todos.
+         * \param Amount: N�mero de Assets de la cola a procesar. Si vale -1 se procesar�n todos.
          *
          */
         void ProcessAssetQueue(int amount = -1);
@@ -95,17 +93,17 @@ namespace UE
         inline int GetAssetQueueSize() { return _assetQueue.size(); }
 
         /// <summary>
-		/// Comprueba si la cola de carga de Assets está vacía.
+        /// Comprueba si la cola de carga de Assets est� vac�a.
         /// </summary>
         /// <returns>El resultado de la cola.</returns>
         inline bool IsAssetQueueEmpty() { return _assetQueue.empty(); }
 
 
         /*--------------------------------------/
-		*	Métodos para manejar las texturas.  *
+        *   M�todos para manejar las texturas.  *
         *--------------------------------------*/
 
-		//Crea una textura de SDL y la añade al mapa de texturas identificada por su nombre.
+        //Crea una textura de SDL y la a�ade al mapa de texturas identificada por su nombre.
         void LoadTexture(std::string name, std::string txPath);
 
         //Elimina una textura del mapa a partir de su nombre.
@@ -119,20 +117,20 @@ namespace UE
 
 
         /*------------------------------------/
-		*	Métodos para manejar las fuentes. *
+        *   M�todos para manejar las fuentes. *
         *------------------------------------*/
 
         /**
-		* Crea un objeto UE:Font y lo añade al mapa de fuentes.
+        * Crea un objeto UE:Font y lo a�ade al mapa de fuentes.
         *
         * @param name : Nombre del asset (key para el mapa de fuentes).
-		* @param fontPath : Ubicación del archivo de datos sobre la fuente.
+        * @param fontPath : Ubicaci�n del archivo de datos sobre la fuente.
         *
         */
         void LoadFont(std::string name, std::string fontPath);
 
         /**
-		* Elimina una fuente (y en teoría limpia la fuente) dado su nombre de Asset.
+        * Elimina una fuente (y en teor�a limpia la fuente) dado su nombre de Asset.
         *
         * @param name : Nombre del Asset (key del mapa de fuentes).
         *
@@ -168,7 +166,7 @@ namespace UE
 
         /* Almacenes de asssets */
 
-		//Almacén de SDL_Texture* (ptrs, pues lo gestiona SDL).
+        //Almac�n de SDL_Texture* (ptrs, pues lo gestiona SDL).
         //std::unordered_map<std::string, SDL_Texture*> _textures = {};
         //std::unordered_map<std::string, std::vector<SDL_Rect>> _textureRects = {};
         std::unordered_map <std::string, Texture*> _textures = {};

UberEngine/src/Assets/Font.cpp

@@ -1,9 +1,9 @@
 #include "Font.h"
-#include "Logging\Logger.h"
+#include "Logging/Logger.h"
 
 #include <fstream>
 
-#include <json\json.hpp>
+#include <json/json.hpp>
 using json = nlohmann::ordered_json;
 
 
@@ -15,7 +15,7 @@ TTF_Font* UE::Font::GetFont(int size)
     auto it = _fonts.find(size);
     if (it == _fonts.end())
     {
-		//El tamaño pedido no está disponible.
+        //El tama�o pedido no est� disponible.
         //La creamos nueva.
         font = CreateFontSize(size);
         return font;
@@ -41,7 +41,7 @@ void UE::Font::InitFont()
 
     _fontPath = jread["FontPath"].get<std::string>();
 
-	//Obtenemos los tamaños que crear de inicio.
+    //Obtenemos los tama�os que crear de inicio.
     std::vector<int> vect = jread["FontSizes"].get<std::vector<int>>();
     for (auto it : vect)
     {
@@ -53,7 +53,7 @@ void UE::Font::InitFont()
 
 void UE::Font::CleanFont()
 {
-	//Eliminamos todos los tamaños de las fuentes.
+    //Eliminamos todos los tama�os de las fuentes.
     for (auto i = _fonts.begin(); i != _fonts.end(); i++)
     {
         TTF_CloseFont(i->second);
@@ -62,7 +62,7 @@ void UE::Font::CleanFont()
 
 TTF_Font* UE::Font::CreateFontSize(int size)
 {
-	//Creamos la fuente del tamaño requerido.
+    //Creamos la fuente del tama�o requerido.
     TTF_Font* font = TTF_OpenFont(_fontPath.c_str(), size);
     if (font == nullptr)
     {
@@ -70,7 +70,7 @@ TTF_Font* UE::Font::CreateFontSize(int size)
         return nullptr;
     }
 
-	//La añadimos al mapa.
+    //La a�adimos al mapa.
     _fonts.insert(std::make_pair(size, font));
 
     UE_LOG_TRACE("Font: {0} se ha creado con tamanho: {1}", _fontPath, size);

UberEngine/src/Assets/Font.h

@@ -9,8 +9,8 @@ namespace UE
 {
     /** 
     * Clase Wrapper para las SDL_Fonts.
-	* También sirve de "cache" para los diferentes tamaños de la fuente, de esta forma
-	*	reducimos las veces que generamos las fuentes y podemos utilizar múltiples tamaños de forma sencilla.
+    * Tambi�n sirve de "cache" para los diferentes tama�os de la fuente, de esta forma
+    *   reducimos las veces que generamos las fuentes y podemos utilizar m�ltiples tama�os de forma sencilla.
     * 
     */
     class Font
@@ -37,11 +37,11 @@ namespace UE
 
 
         /**
-		* Devuelve la fuente del tamaño pedido.
-		* En caso de no estar disponible, la genera y la añade al cache antes de devolverla.
+        * Devuelve la fuente del tama�o pedido.
+        * En caso de no estar disponible, la genera y la a�ade al cache antes de devolverla.
         * 
-		* @param size : tamaño de la fuente.
-		* @return TTF_Font* : Fuente del tamaño solicitado.
+        * @param size : tama�o de la fuente.
+        * @return TTF_Font* : Fuente del tama�o solicitado.
         */
         TTF_Font* GetFont(int size);
 
@@ -53,15 +53,15 @@ namespace UE
         void InitFont();
 
         /**
-		* Limpia la fuente, eliminando todos sus tamaños y vaciando toda la memoria.
+        * Limpia la fuente, eliminando todos sus tama�os y vaciando toda la memoria.
         */
         void CleanFont();
 
         /**
-		* Se encarga de generar el tamaño de fuente deseado.
+        * Se encarga de generar el tama�o de fuente deseado.
         * 
-		* @param size : tamaño a generar.
-		* @return TTF_Font* : Ptr al nuevo tamaño generado. Hay que guardarlo en algún sitio.
+        * @param size : tama�o a generar.
+        * @return TTF_Font* : Ptr al nuevo tama�o generado. Hay que guardarlo en alg�n sitio.
         */
         TTF_Font* CreateFontSize(int size);
 
@@ -71,13 +71,13 @@ namespace UE
         //-----------------------
 
     private:
-		//Ubicación del archivo de datos (.json).
+        //Ubicaci�n del archivo de datos (.json).
         std::string _dataPath = "";
 
-		//Ubicación de la tipografía (.ttf).
+        //Ubicaci�n de la tipograf�a (.ttf).
         std::string _fontPath = "";
 
-		//Caché de los diferentes tamaños de la fuente.
+        //Cach� de los diferentes tama�os de la fuente.
         std::unordered_map<int, TTF_Font*> _fonts = {};
 
     };

UberEngine/src/Assets/Texture.cpp

@@ -1,11 +1,11 @@
 #include "Texture.h"
-#include "Logging\Logger.h"
+#include "Logging/Logger.h"
 
 #include "Asset.h"
 
 #include <fstream>
 
-#include <json\json.hpp>
+#include <json/json.hpp>
 using json = nlohmann::ordered_json;
 
 SDL_Rect* UE::Texture::GetTextureRect(int i)

UberEngine/src/Assets/Texture.h

@@ -42,10 +42,10 @@ namespace UE
         inline std::vector<SDL_Rect>* GetRectsVector() { return &_txRects; }
 
         /**
-		* Retorna el Rect pedido. Comprobando que está disponible.
-		* Si no está disponible, devuelve el rect de index 0 (que debería ser el por defecto).
+        * Retorna el Rect pedido. Comprobando que est� disponible.
+        * Si no est� disponible, devuelve el rect de index 0 (que deber�a ser el por defecto).
         *
-		* @param i : Índice del rect.
+        * @param i : �ndice del rect.
         * @return El SDL_Rect* solicitado (o el por defecto en caso de error).
         */
         SDL_Rect* GetTextureRect(int i);
@@ -63,13 +63,13 @@ namespace UE
         void CleanTexture();
 
         /**
-		* Método encargado de generar la textura a partir de los valores de la clase.
+        * M�todo encargado de generar la textura a partir de los valores de la clase.
         */
         void CreateTexture();
 
         /**
-		* Método que añade un SDL_Rect al vector correspondiente.
-		* @param newRect : Nuevo Rect que añadir al vector de Rects.
+        * M�todo que a�ade un SDL_Rect al vector correspondiente.
+        * @param newRect : Nuevo Rect que a�adir al vector de Rects.
         */
         void AddRect(SDL_Rect newRect);
 
@@ -78,13 +78,13 @@ namespace UE
         //-----------------------
 
     private:
-		//Ubicación del archivo de datos (.json).
+        //Ubicaci�n del archivo de datos (.json).
         std::string _dataPath = "";
 
         //El propio renderer de SDL. Es necesario para crear y operar con las SDL_Textures.
         SDL_Renderer* _SDL_Renderer = nullptr;
 
-		//Ubicación de la textura (.png).
+        //Ubicaci�n de la textura (.png).
         std::string _txPath = "";
 
         //La propia textura.

UberEngine/src/Drawables/Sprite.cpp

@@ -1,9 +1,9 @@
 #include "Sprite.h"
 
-#include "Render\Renderer.h"
-#include "Assets\AssetManager.h"
+#include "Render/Renderer.h"
+#include "Assets/AssetManager.h"
 
-#include "Logging\Logger.h"
+#include "Logging/Logger.h"
 
 #include <iostream>
 

UberEngine/src/Drawables/Sprite.h

@@ -1,15 +1,16 @@
 #pragma once
+
 #include <SDL.h>
 #include <string>
 #include <vector>
 //#include <glm.hpp>
 
-#include <glm\vec2.hpp>
+#include <glm/vec2.hpp>
 
 
-#include "Render\Drawable.h"
-#include "Render\Transformable.h"
-#include "Assets\Texture.h"
+#include "Render/Drawable.h"
+#include "Render/Transformable.h"
+#include "Assets/Texture.h"
 
 //
 // TODO:
@@ -35,16 +36,16 @@ namespace UE
         */
 
         /*
-			Se establecen todos los parámetos.
+            Se establecen todos los par�metos.
             La textura es obligatoria, y puede ha de darse:
-				- En SDL_Texture* -> Sin más, se entiende.
-				En ambos casos se llama al método SetTexturePtr.
-			Los demás parámetros tienen un valor por defecto.
+                - En SDL_Texture* -> Sin m�s, se entiende.
+                En ambos casos se llama al m�todo SetTexturePtr.
+            Los dem�s par�metros tienen un valor por defecto.
 
             \param texturePtr: El pointer a la textura de SDL.
             \param textureRects: El pointer al conjunto de SDL_Rects de la textura.
-			\param textureRectID: El número de Rect del conjunto de rects.
-			\param renderLayer: La Layer en que se renderizará.
+            \param textureRectID: El n�mero de Rect del conjunto de rects.
+            \param renderLayer: La Layer en que se renderizar�.
         */
         Sprite(UE::Texture* texture,
             int textureRectID = 0,

UberEngine/src/Drawables/TextBox.cpp

@@ -1,7 +1,7 @@
 #include "TextBox.h"
 
-#include "Logging\Logger.h"
-#include "Render\Renderer.h"
+#include "Logging/Logger.h"
+#include "Render/Renderer.h"
 
 void UE::TextBox::SetText(std::string newText)
 {
@@ -34,7 +34,7 @@ void UE::TextBox::SetColor(int r, int g, int b, int a)
 
 void UE::TextBox::Draw(Renderer* renderer)
 {
-	//Si aún no tenemos renderer, lo guardamos y procesamos.
+    //Si a�n no tenemos renderer, lo guardamos y procesamos.
     if (_sdlRenderer == nullptr)
     {
         _sdlRenderer = renderer->GetSDLRenderer();
@@ -42,7 +42,7 @@ void UE::TextBox::Draw(Renderer* renderer)
     }
     if (_textTexture == nullptr)
     {
-		UE_LOG_WARN("El texto: {0} ; No se está renderizando. La textura no existe.", _text);
+        UE_LOG_WARN("El texto: {0} ; No se est� renderizando. La textura no existe.", _text);
         return;
     }
 
@@ -63,7 +63,7 @@ void UE::TextBox::RenderTextTexture()
     //Creamos el SDL_Color a partir del vec4 que contiene el color.
     SDL_Color color = { _textColor.x,_textColor.y, _textColor.z, _textColor.w };
 
-	//Tomamos la TTF_Font del tamaño que queremos de UE::Font.
+    //Tomamos la TTF_Font del tama�o que queremos de UE::Font.
     TTF_Font* fn = _font->GetFont(_textSize);
 
     SDL_Surface* loader = TTF_RenderText_Solid(fn, _text.c_str(), color);

UberEngine/src/Drawables/TextBox.h

@@ -2,13 +2,13 @@
 
 #include <SDL.h>
 #include <SDL_ttf.h>
-#include <glm\vec4.hpp>
+#include <glm/vec4.hpp>
 
 
-#include "Render\Drawable.h"
-#include "Render\Transformable.h"
+#include "Render/Drawable.h"
+#include "Render/Transformable.h"
 
-#include "Assets\Font.h"
+#include "Assets/Font.h"
 
 
 namespace UE
@@ -38,7 +38,7 @@ namespace UE
             RenderTextTexture();
         }
 
-		//Se generará una textura y todo eso...
+        //Se generar� una textura y todo eso...
         void SetText(std::string newText);
         void SetSize(int newSize);
 
@@ -61,7 +61,7 @@ namespace UE
 
         SDL_Texture* _textTexture = nullptr;
 
-		//Esto está muy mal hecho, no debería de ser así.
+        //Esto est� muy mal hecho, no deber�a de ser as�.
         //Necesito un renderer para crear la textura del texto, pero no puedo conseguirlo con la arquitectura actual.
         //No quiero regenerar la textura en cada frame de forma innecesaria...
         //Por ello, me toca forzar un poco el sistema.

UberEngine/src/Engine.cpp

@@ -0,0 +1,152 @@
+#include "Engine.h"
+
+#include "Logging/Logger.h"
+
+#include "Render/Renderer.h"
+#include "Assets/AssetManager.h"
+#include "Scene/SceneManager.h"
+
+namespace UE
+{
+    //Le decimos a C++ que son objetos static y que los cree cuando vea.
+    
+    Renderer* Engine::_renderer;
+    AssetManager* Engine::_assetManager;
+    SceneManager* Engine::_sceneManager;
+
+
+    int Engine::Init()
+    {
+        //Lo primero, es iniciar el Logger, para poder imprimir errores.
+        UE::Logger::InitLogger();
+
+
+        //Etapa de carga de librerías.
+        if(InitLibs() < 0) //Retorna negativos en caso de error.
+        {
+            UE_LOG_CRITICAL("Engine - Error al inicial las librerías");
+            return -1;
+        }
+
+        //Iniciamos los sistemas del motor.
+        if(InitRenderer() < 0)
+        {
+            UE_LOG_CRITICAL("Engine - Error al iniciar el renderer.");
+            return -2;
+        }
+
+        if(InitAssetManager() < 0)
+        {
+            UE_LOG_CRITICAL("Engine - Error al inicial el AssetManager.");
+            return -3;
+        }
+
+        if(InitSceneManager() < 0)
+        {
+            UE_LOG_CRITICAL("Engine - Error al inicial el SceneManager.");
+            return -4;
+        }
+
+        UE_LOG_INFO("Engine - El motor se ha iniciado correctamente.");
+
+        return 0;
+    }
+
+    void Engine::Clean()
+    {
+        //Etapa para limpiar los sistemas del motor.
+        _sceneManager->CleanSceneManager();
+        delete _sceneManager;
+
+        _assetManager->CleanAssetManager();
+        delete _assetManager;
+
+        _renderer->CleanRenderer();
+        delete _renderer;
+
+        //Etapa para desactivar y limpiar todas las librerías.
+        QuitLibs();
+    }
+
+
+    int Engine::InitLibs()
+    {
+        //Iniciamos SDL.
+		SDL_HINT_RENDER_DRIVER "opengl";
+
+		Uint32 SDL_Flags = SDL_INIT_TIMER | SDL_INIT_VIDEO | SDL_INIT_EVENTS;
+		if (SDL_Init(SDL_Flags) < 0)
+		{
+			UE_LOG_CRITICAL("Engine - SDL: Error al iniciar SDL: {0}", SDL_GetError());
+			return -1;
+		}
+        UE_LOG_TRACE("Engine - SDL se ha iniciado correctamente");
+
+        //Iniciamos SDL_Image
+		if (IMG_Init(IMG_INIT_PNG) == 0) //Retorna 0 en caso de fallo.
+		{
+			UE_LOG_ERROR("Engine - SDL_Image: Error al iniciarse: {0}", IMG_GetError());
+            return -2;
+		}
+        UE_LOG_TRACE("Engine - SDL_Image se ha iniciado correctamente");
+
+        //Iniciamos el SDL_TTF
+		if (TTF_Init() < 0) //Retorna -1 en caso de error.
+		{
+			UE_LOG_ERROR("Engine - SDL_TTF: Error al inicarse: {0}", TTF_GetError());
+            return -3;
+		}
+        UE_LOG_TRACE("Engine - SDL_TTF se ha iniciado correctamente");
+
+        return 0;
+    }
+
+
+    int Engine::InitRenderer()
+    {
+        //Cargamos el Renderer.
+        //Hay que implementar un sistema de flags o 
+        //  una struct de configuración para la inicialización del renderer.
+        _renderer = new UE::Renderer(640, 480, 5);
+        if(_renderer->InitRenderer() < 0)
+        {
+            return -1;
+        }
+        UE_LOG_TRACE("Engine - Renderer: Se ha iniciado correctamente");
+        return 0;
+    }
+
+    int Engine::InitAssetManager()
+    {
+        //Cargamos el AssetManager
+        //Faltaría control de errores en caso de haberlo.
+        _assetManager = new UE::AssetManager(_renderer->GetSDLRenderer());
+        _assetManager->InitAssetManager();
+
+        
+        UE_LOG_TRACE("Engine - AssetManager: Se ha iniciado correctamente");
+        return 0;
+    }
+
+    int Engine::InitSceneManager()
+    {
+        //Cargamos el SceneManager
+        //Faltaría control de errores en caso de haberlo.
+        _sceneManager = new UE::SceneManager();
+
+        UE_LOG_TRACE("Engine - SceneManager: Se ha iniciado correctamente.");
+        return 0;
+    }
+
+
+    int Engine::QuitLibs()
+    {
+        TTF_Quit();
+		IMG_Quit();
+
+        SDL_Quit();
+
+        return 0;
+    }
+
+}

UberEngine/src/Engine.h

@@ -0,0 +1,80 @@
+#pragma once
+
+namespace UE
+{
+    //Declaraciones de clases de UberEngine
+
+    class Renderer;
+    class AssetManager;
+    class SceneManager;
+
+    /* Clase Principal del motor.
+     * Carga todas los sistemas y librerías al inicio y los descarga al final.
+     * Contiene ptrs a los sistemas principales.
+    */
+    class Engine
+    {
+    public:
+        /* 
+         * Inicia todos los sistemas y librerías necesarias.
+         * Retornará 0 o un código de error negativo.
+         */
+        static int Init();
+
+        /* 
+         * Limpia todas las cosas del motor.
+         */
+        static void Clean();
+
+        inline static UE::Renderer* GetRenderer() { return _renderer; }
+        inline static UE::AssetManager* GetAssetManager() { return _assetManager; }
+        inline static UE::SceneManager* GetSceneManager() { return _sceneManager;  }
+
+
+    private:
+
+        //Vamos a crear un método para la inicialización de cada sistema.
+        //  de esta forma, debería ser más fácil modificar la inicialización cuando sea necesario.
+
+        /*
+         * Inicializa las librerías de SDL.
+         * Retorna códigos de error negativos.
+         */
+        static int InitLibs();
+
+        /*
+         * Inicializa el renderer.
+         * En un futuro, debería ser configurable, además de soportar distintos backends.
+         */
+        static int InitRenderer();
+
+        /*
+         * Inicializa el AssetManager.
+         * Es necesario iniciar primero el Renderer para poder acceder al SDL_Renderer.
+         *      (al menos, mientras usemos el SDL_Renderer.)
+         */
+        static int InitAssetManager();
+
+
+        /*
+         * Inicializa el SceneManager.
+         */
+        static int InitSceneManager();
+
+
+        /*
+         * Al igual que se inician, hay que limpiar las libs.
+         */
+        static int QuitLibs();
+
+
+        /*
+         *  Ptrs de los sistemas.
+         */
+
+        static Renderer* _renderer;
+        static AssetManager* _assetManager;
+        static SceneManager* _sceneManager;
+
+    };
+}

UberEngine/src/Logging/Logger.cpp

@@ -1,6 +1,6 @@
 #include "Logger.h"
 
-#include "spdlog\sinks\stdout_color_sinks.h"
+#include "spdlog/sinks/stdout_color_sinks.h"
 
 
 namespace UE

UberEngine/src/Logging/Logger.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#include "spdlog\spdlog.h"
+#include "spdlog/spdlog.h"
 
 #include <memory>
 
@@ -23,7 +23,7 @@ namespace UE
     };
 
 
-//Macros para el Logging. Es más cómodo que estar poniendo la línea entera cada vez...
+//Macros para el Logging. Es más cómodo que estar poniendo la línea entera cada vez...
 #define UE_LOG_TRACE(...)           ::UE::Logger::GetEngineLogger()->trace(__VA_ARGS__)
 #define UE_LOG_DEBUG(...)           ::UE::Logger::GetEngineLogger()->debug(__VA_ARGS__)
 #define UE_LOG_INFO(...)            ::UE::Logger::GetEngineLogger()->info(__VA_ARGS__)

UberEngine/src/Render/Camera.cpp

@@ -0,0 +1,16 @@
+#include "Camera.h"
+#include "Logging/Logger.h"
+
+namespace UE
+{
+
+    void Camera::SetCamPosition(int posX, int posY)
+    {
+        camPosition.x = posX;
+        camPosition.y = posY;
+
+        UE_LOG_TRACE("Cam position chaged to: {0}x{1}", posX, posY);
+    }
+
+
+}

UberEngine/src/Render/Camera.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include <glm/vec2.hpp>
+
+//
+// ToDO:
+//  - La cámara debería tener un tamaño definido.
+//      para hacer zoom y esas cosas.
+//
+
+
+namespace UE
+{
+    class Camera
+    {
+    public:
+
+        Camera() {}
+
+        Camera(int posX, int posY)
+            : camPosition{posX, posY}
+        {}
+
+        inline glm::ivec2 GetCamPosition() { return camPosition; }
+        void SetCamPosition(int posX, int posY);
+
+
+
+    private:
+        glm::ivec2 camPosition { 0, 0 };
+
+        //glm::ivec2 camSize { 0, 0 };
+
+    };
+}

UberEngine/src/Render/Renderer.cpp

@@ -1,48 +1,37 @@
 #include <iostream>
 
-#include <ImGui\imgui.h>
-#include <ImGui\imgui_impl_sdl.h>
-#include <ImGui\imgui_impl_sdlrenderer.h>
-//#include <ImGui\imgui_impl_opengl3.h>
+#include <ImGui/imgui.h>
+#include <ImGui/imgui_impl_sdl.h>
+#include <ImGui/imgui_impl_sdlrenderer.h>
+//#include <ImGui/imgui_impl_opengl3.h>
 
-#include <SDL\include\SDL_opengl.h>
+#include <SDL_opengl.h>
 
 
 #include "Renderer.h"
-#include "Logging\Logger.h"
+#include "Logging/Logger.h"
 
 namespace UE
 {
-	//class Game;
-
     int Renderer::InitRenderer()
     {
-		//Iniciamos SDL.
-		SDL_HINT_RENDER_DRIVER "opengl";
-
-		Uint32 SDL_Flags = SDL_INIT_TIMER | SDL_INIT_VIDEO | SDL_INIT_EVENTS;
-		if (SDL_Init(SDL_Flags) < 0)
-		{
-			UE_LOG_CRITICAL("No se ha podido iniciar SDL, sufre mamón: {0}", SDL_GetError());
-			return 1;
-		}
-
-		//Configuramos los parámetros de la ventana de SDL.
+        //Configuramos los par�metros de la ventana de SDL.
         Uint32 windowFlags = (SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL | SDL_WINDOW_ALLOW_HIGHDPI | SDL_WINDOW_RESIZABLE);
 
         //Creamos la ventana de SDL.
         _window = SDL_CreateWindow("UberGame1", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, screenSize.x, screenSize.y, windowFlags);
         if (_window == NULL)
         {
-			UE_LOG_CRITICAL("No se ha podido crear la ventana de SDL con OpenGL y esas mierdas: {0}", SDL_GetError());
-			return 1;
+            UE_LOG_CRITICAL("Renderer - CreateWindow: No se ha podido crear la ventana con OpenGL: {0}", SDL_GetError());
+            return -1;
         }
 
         //Creamos el Renderer de SDL.
         main_Renderer = SDL_CreateRenderer(_window, -1, SDL_RENDERER_ACCELERATED);
         if (main_Renderer == NULL)
         {
-			UE_LOG_CRITICAL("No se ha podido crear el Renderer de SDL: {0}", SDL_GetError());
+            UE_LOG_CRITICAL("Renderer - SDL_Renderer: No se ha podido crear el Renderer de SDL: {0}", SDL_GetError());
+            return -2;
         }
         SDL_SetRenderDrawColor(main_Renderer, 0xFF, 0xFF, 0xFF, 0xFF);
 
@@ -56,17 +45,18 @@ namespace UE
 
         ImGui::StyleColorsDark();
 
-		ImGui_ImplSDL2_InitForSDLRenderer(_window);
+        ImGui_ImplSDL2_InitForSDLRenderer(_window, main_Renderer);
         ImGui_ImplSDLRenderer_Init(main_Renderer);
 
 #pragma endregion
 
 
         //Init layers.
-		for (int i = 0; i < LAYER_AMOUNT; i++)
+        for (int i = 0; i <= LAYER_AMOUNT; i++)
         {
             renderLayers.push_back(std::vector<DrawCall>());
         }
+
     }
 
     void Renderer::CleanRenderer()
@@ -99,9 +89,13 @@ namespace UE
         ImGui_ImplSDL2_NewFrame();
         ImGui::NewFrame();
 
-		//Quizás deberíamos limpiar la cola y las Layers aquí para eliminar residuos...
+        //Quiz�s deber�amos limpiar la cola y las Layers aqu� para eliminar residuos...
         //callCounter = 0;
         //rendererCounter = 0;
+
+        //Actualizamos el rect que representa la pantalla.
+        glm::ivec2 camPos = activeCam->GetCamPosition();
+        _screenRect = {camPos.x, camPos.y, screenSize.x, screenSize.y};
     }
 
     void Renderer::RenderData()
@@ -142,7 +136,6 @@ namespace UE
     
     }
 
-
     void Renderer::EndFrame()
     {
         //SDL_UpdateWindowSurface(window);
@@ -171,11 +164,9 @@ namespace UE
         UE_LOG_TRACE("Screen size chaged to: {0}x{1}", newWidth, newHeight);
     }
 
-	void Renderer::SetCamPosition(int posX, int posY)
+    void Renderer::SetDrawingColor(SDL_Color& newColor)
     {
-		camPosition.x = posX;
-		camPosition.y = posY;
-		//UE_LOG_TRACE("Cam position chaged to: {0}x{1}", posX, posY);
+        SDL_SetRenderDrawColor(main_Renderer, newColor.r, newColor.g, newColor.b, newColor.a);
     }
 
 
@@ -183,7 +174,7 @@ namespace UE
     glm::ivec2 Renderer::WorldToSreenCoords(glm::ivec2 worldCoord)
     {
         //Convertimos las coordenas de WorldCoords a ScreenCoords relativas a la camPosition.
-		glm::ivec2 fPos = worldCoord - camPosition;
+        glm::ivec2 fPos = worldCoord - activeCam->GetCamPosition();
 
         return fPos;
     }
@@ -191,22 +182,19 @@ namespace UE
     glm::ivec2 Renderer::ScreenToWorldCoords(glm::ivec2 screenCoord)
     {
         //Convertimos las coordenas de ScreenCoords a WorldCoords relativas a la camPosition.
-		glm::ivec2 fPos = screenCoord + camPosition;
+        glm::ivec2 fPos = screenCoord + activeCam->GetCamPosition();
 
         return fPos;
     }
 
-	//CREO QUE ESTE MÉTODO NO FUNCIONA.
-	//LAS COORDS QUE USAMOS EN LA COMPROBACIÓN NO SON LAS ADECUADAS.
+    //CREO QUE ESTE M�TODO NO FUNCIONA.
+    //LAS COORDS QUE USAMOS EN LA COMPROBACI�N NO SON LAS ADECUADAS.
     bool Renderer::IsObjectVisible(SDL_Rect* objectRect)
     {
-
-		//Generamos un rect que representa la pantalla.
-		SDL_Rect screen{ camPosition.x, camPosition.y, screenSize.x, screenSize.y };
-		//Comprobamos si hay intersección entre ambos.
-		if (!SDL_HasIntersection(&screen, objectRect))
+        //Comprobamos si hay intersecci�n entre ambos.
+        if (!SDL_HasIntersection(&_screenRect, objectRect))
         {
-			//UE_LOG_TRACE("Se omite el renderizado de un objeto al estar fuera de la cámara.");
+            //UE_LOG_TRACE("Se omite el renderizado de un objeto al estar fuera de la c�mara.");
             return false;
         }
         return true;
@@ -214,7 +202,7 @@ namespace UE
 
 
 
-	//¿Deberíamos operar la posición para que tenga en cuenta la cámara?
+    //�Deber�amos operar la posici�n para que tenga en cuenta la c�mara?
     void Renderer::DrawObject(SDL_Rect* position, SDL_Rect* texture_pos, SDL_Texture* texture)
     {
         SDL_RenderCopy(main_Renderer, texture, texture_pos, position);
@@ -231,16 +219,12 @@ namespace UE
             UE_LOG_ERROR("Can't add DrawCall to Layer {0} -> out of range\n", drawCall.layer);
             return;
         }
-		//Comprobamos si el objeto es visible.
-		// 
-		//Generamos un rect que representa la pantalla.
-		SDL_Rect screen{ 0, 0, screenSize.x, screenSize.y };
-		//Comprobamos si hay intersección entre ambos.
-		if (!SDL_HasIntersection(&screen, &drawCall.pos_rect))
-		{
-			//UE_LOG_TRACE("Se omite el renderizado de un objeto al estar fuera de la cámara.");
-			return;
-		}
+        // //Comprobamos si el objeto es visible.
+        // if(!IsObjectVisible(&drawCall.pos_rect))
+        // {
+        //     //Si no es visible, no lo renderizaríamos.
+        //     return;
+        // }
 
         renderLayers.at(drawCall.layer).push_back(drawCall);
         //rendererCounter++;

UberEngine/src/Render/Renderer.h

@@ -5,15 +5,16 @@
 #include <stdio.h>
 
 #include <SDL.h>
-#include <glm\vec2.hpp>
+#include <glm/vec2.hpp>
 
 #include "Drawable.h"
+#include "Camera.h"
 
 //
 // TODO:
-//  - Optimizar RenderDraw moviendo la ordenación por capas a Queue, quitando renderQueue.
-//  - Limpiar las funciones moviendo código a otras funciones.
-//  - ¿Podría moverse todo a static? De esta forma, ya no harían falta instancias.
+//  - Optimizar RenderDraw moviendo la ordenaci�n por capas a Queue, quitando renderQueue.
+//  - Limpiar las funciones moviendo c�digo a otras funciones.
+//  - �Podr�a moverse todo a static? De esta forma, ya no har�an falta instancias.
 //
 
 
@@ -57,7 +58,7 @@ namespace UE
         void NewFrame();
 
         //Ordena por layer todos los objetos de la renderQueue y los dibuja en orden.
-		//Se puede mover el proceso de ordenado a otra función, con el objeto de ir vaciando la Queue.
+        //Se puede mover el proceso de ordenado a otra funci�n, con el objeto de ir vaciando la Queue.
         void RenderData();
 
 
@@ -65,7 +66,7 @@ namespace UE
         void EndFrame();
 
 
-		//Añade un DrawCall al renderQueue.
+        //A�ade un DrawCall al renderQueue.
         void QueueDrawCall(DrawCall drawCall);
         void QueueDrawCall(int layer, SDL_Rect& position, SDL_Texture* texture, SDL_Rect& texture_position);
         void QueueDrawCall(int layer, SDL_Rect & position, SDL_Texture* texture);
@@ -80,23 +81,29 @@ namespace UE
         inline glm::ivec2 GetScreenSize() { return screenSize; }
         void SetScreenSize(int newWidth, int newHeight);
 
-		inline glm::ivec2 GetCamPosition() { return camPosition; }
-		void SetCamPosition(int posX, int posY);
+        //Permite cambiar el color de fondo.
+        void SetDrawingColor(SDL_Color& newColor);
 
-		/* Métodos para transformar las coordenadas entre Screen y Wolrd. */
+        //Cambia la cámara que se utiliza en el renderizado.
+        inline void SetCamera(Camera* newCam) { activeCam = newCam; }
+        inline Camera* GetCamera() { return activeCam; }
+
+
+        /* M�todos para transformar las coordenadas entre Screen y Wolrd. */
         //WorldCoords = ScreenPos + CamPos -> ScreenPos = WorldCoords - CamPos;
-		//Convierte coordenadas de mundo a la pantalla (en función de la cámara).
+
+        //Convierte coordenadas de mundo a la pantalla (en función de la cámara).
         glm::ivec2 WorldToSreenCoords(glm::ivec2 worldCoord);
         //Convierte coordenadas de la pantalla al mundo.
         glm::ivec2 ScreenToWorldCoords(glm::ivec2 screenCoord);
 
-		//Comprueba si un objeto está dentro del rectángulo de la cámara.
-		//Usada para saber si un objeto se debería de renderizar o no.
+        //Comprueba si un objeto est� dentro del rect�ngulo de la c�mara.
+        //Usada para saber si un objeto se deber�a de renderizar o no.
         bool IsObjectVisible(SDL_Rect* objectRect);
 
 
         //DEBUG
-		//Función para renderizar un objeto un objeto en concreto directamente en el SDL_Renderer.
+        //Funci�n para renderizar un objeto un objeto en concreto directamente en el SDL_Renderer.
         void DrawObject(SDL_Rect* position, SDL_Rect* texture_pos, SDL_Texture* texture);
 
 
@@ -115,7 +122,7 @@ namespace UE
         //SDL_GLContext _glContext = nullptr;
 
         //Almacena todas las "draw calls" para luego ordenar los objetos por layers y dibujarlos.
-		//Se podría sustituir por un std::queue o std::deque si fuera necesario.
+        //Se podr�a sustituir por un std::queue o std::deque si fuera necesario.
         std::vector<DrawCall> renderQueue;
         
         //Las capas en las que se organizan los diferentes objetos.
@@ -128,7 +135,11 @@ namespace UE
         //int screenHeight = 480;
 
         glm::ivec2 screenSize{ 640,480 };
-		glm::ivec2 camPosition{ 0,0 };
+
+        //glm::ivec2 camPosition{ 0,0 };
+        Camera* activeCam;
+
+        SDL_Rect _screenRect{ 0, 0, screenSize.x, screenSize.y};
 
 
         //DEBUG

UberEngine/src/Render/Transformable.h

@@ -3,12 +3,12 @@
 #include <string>
 #include <vector>
 
-#include <glm\vec2.hpp>
+#include <glm/vec2.hpp>
 
 namespace UE
 {
     /*
-		Clase que contiene lo necesario para crear un objeto con posición en el espacio y modificarlo.
+        Clase que contiene lo necesario para crear un objeto con posici�n en el espacio y modificarlo.
     */
     class Transformable
     {
@@ -20,7 +20,7 @@ namespace UE
         //-----------
 
 
-		//Modifica la posición del Objeto.
+        //Modifica la posici�n del Objeto.
         inline void SetPosition(float x, float y) { _pos = glm::vec<2, float>(x, y); }
         inline void SetPosition(glm::vec<2, float> newPosition) { _pos = newPosition; }
 
@@ -38,7 +38,7 @@ namespace UE
 
 
     protected:
-		//Se almacena la posición y el tamaño del objeto. Con esto se puede crear un SDL_Rect.
+        //Se almacena la posici�n y el tama�o del objeto. Con esto se puede crear un SDL_Rect.
         glm::vec<2, float> _pos;
         glm::vec<2, float> _size;
     };

UberEngine/src/Scene/Scene.cpp

@@ -1,5 +1,7 @@
 #include "Scene.h"
 
+#include "Logging/Logger.h"
+
 #include <iostream>
 
 namespace UE
@@ -7,13 +9,13 @@ namespace UE
 
     void Scene::SceneInit()
     {
-		//id = currentID++;
-		std::cout << "Scene has been init!" << std::endl;
+        UE_LOG_TRACE("Scene {0} has been init!", _sceneName);
     }
 
     void Scene::SceneClean()
     {
-		std::cout << "Scene has been cleaned!" << std::endl;
+        UE_LOG_TRACE("Scene {0} has been Cleaned!", _sceneName);
+
         if (loaded)
         {
             SceneUnload();

UberEngine/src/Scene/Scene.h

@@ -5,7 +5,6 @@
 
 ///
 ///	TODO:
-///  - Scene debería ser serializable y cargable desde archivos, al menos para las clases derivadas. ( o quizás no....)
 /// 
 /// 
 union SDL_Event;
@@ -14,9 +13,9 @@ namespace UE
 {
 
     /* 
-		Estructura básica de una escena. Almacena los datos mínimos.
-		Se utilizará como clase base para las clases Scene específicas.
-		Esta clase será heredada por las escenas del usuario.
+        Estructura básica de una escena.
+        Se utiliza como clase base para las clases Scene específicas del Game.
+        Esta clase será heredada por las escenas del usuario.
     */ 
     class Scene
     {
@@ -24,35 +23,67 @@ namespace UE
 
         Scene(std::string name)
             : _sceneName(name)
-		{}
+        {
+            SceneInit();
+        }
 
-		/* Funciones "internas" de la clase para inicialización y cierre. */
+        ~Scene()
+        {
+            SceneClean();
+        }
+
+
+        /* Funciones "internas" de la clase para inicialización y cierre. */
         void SceneInit();		//Te calienta y prepara la casa al llegar.
         void SceneClean();		//Te deja todo limpio y reluciente al salir.
 
+        /* 
+        Métodos de los estados de la escena.
+        Habrán de ser sobrecargardos por las escenas del usuario. 
+        */
 
-		/* Funciones que habrán de sobrecargar las escenas del usuario. */
-		virtual void SceneLoad() { std::cout << "EMPTY SCENE CREATED" << std::endl; }
-		virtual void SceneRender() {}
-		virtual void SceneUpdate() {}
-		virtual void SceneHandleEvents(SDL_Event* event) {}
-		virtual void SceneUnload() { std::cout << "EMPTY SCENE DESCARGADA" << std::endl; }
+        //Se crean todos los objetos y se carga todo lo necesario para la escena.
+        virtual void SceneLoad() = 0;
 
-		// ¿Esto sirve para algo?
-		//void loadDataFromFile(std::string path);
+        /* 
+         * Render de los objetos de la escena.
+         * Se ejecuta en cada frame.
+         */
+        virtual void SceneRender() = 0;
 
+        /* 
+         * Update para los objetos de la escena.
+         * Utilizado para las físicas y otros componentes similares.
+         * Se ejecuta en cada frame.
+         */
+        virtual void SceneUpdate() = 0;
 
+        /*
+         * Gestor de eventos para la escena.
+         * Utilizado para capturar los eventos que necesita la escena.
+         */
+        virtual void SceneHandleEvents(SDL_Event* event) = 0;
+
+        /*
+         * Descarga y limpia todos los elementos de la escena.
+         * Utilizado también para guardado o lo que sea conveniente.
+         */
+        virtual void SceneUnload() = 0;
+
+        //Obtener el nombre de la escena.
         inline std::string GetName() { return _sceneName; }
 
+        /*
+         * Permite comprobar si la escena está cargada o no.
+         * TODO: Útil si queremos hacer carga asincrona o similar. Al menos para assets o algo.
+         */
         inline bool IsLoaded() { return loaded; }
 
 
     protected:
-		//Almacena el ID actual, permitiendo generar un ID nuevo para cada Scene que se instancie.
-		//static uint16_t currentID;
 
-		std::string _sceneName;
-		//std::vector<Entity> _entidades;
+        //Nombre de la escena. Para identificarla en el SceneManager.
+        std::string _sceneName = "NullScene";
 
         bool loaded = false;
 

UberEngine/src/Scene/SceneBuilder.h

@@ -1,18 +0,0 @@
-#pragma once
-
-namespace UE
-{
-	class Scene;
-
-	/*
-		Será sobrecargado por el juego, de tal forma que cuando se le pida crear una escena, sepa qué objeto crear.
-	*/
-	class SceneBuilder
-	{
-	public:
-		virtual inline Scene* InstanciateScene(int sceneID) { return nullptr; }
-
-	};
-
-
-}

UberEngine/src/Scene/SceneManager.cpp

@@ -1,95 +1,137 @@
 #include "SceneManager.h"
 
-#include "Scene.h"
-#include "SceneBuilder.h"
-
-#include "Logging\Logger.h"
+#include "Logging/Logger.h"
 
 #include <iostream>
 
 namespace UE
 {
 
-	void SceneManager::InitSceneManager(SceneBuilder* sceneBuilder)
+    void SceneManager::InitSceneManager()
     {
-		_sceneBuilder = sceneBuilder;
-
         UE_LOG_INFO("Se ha inicializado el SceneManager.");
     }
 
     void SceneManager::CleanSceneManager()
     {
+        for (auto& it : _loadedScenes)
+        {
+            Scene* sc = it.second;
+            sc->SceneClean();
+            delete sc;
+        }
+
+        _loadedScenes.clear();
+
         if (_currentScene != nullptr)
+        {
+            _currentScene = nullptr;
+        }
+
+        UE_LOG_INFO("El ScenenManager se ha descargado correctamente.");
+    }
+
+    void SceneManager::LoadScene(Scene* sceneToLoad)
+    {
+        std::string name = sceneToLoad->GetName();
+        //Comprobamos si la escena ya está cargada en la lista.
+        if(IsSceneLoaded(name))
+        {
+            //Si lo está, la descargamos para volverla a cargar.
+            //En caso de no estar activa, claro está.
+            UnloadScene(name);
+        }
+        //Cargamos la escena en cuestión.
+        sceneToLoad->SceneLoad();
+
+        //Añadimos la escena a la lista de escenas cargadas.
+        _loadedScenes.insert(std::make_pair(name, sceneToLoad));
+
+    }
+
+    void SceneManager::LoadAndSwitchScene(Scene* sceneToLoad)
+    {
+        LoadScene(sceneToLoad);
+        SwitchScene(sceneToLoad->GetName());
+    }
+
+    void SceneManager::SwitchScene(std::string name)
+    {
+        //Comprobamos si existe la escena indicada.
+        if(!IsSceneLoaded(name))
+        {
+            UE_LOG_WARN("SceneManager: Scene {0}, No se puede cambiar de escena. No está cargada.", name);
+            return;
+        }
+
+        //Cambiamos la escena actual por la indicada.
+        _currentScene = _loadedScenes.at(name);
+    }
+
+    void SceneManager::SwitchAndUnloadScene(std::string name)
+    {
+        //Comprobamos si existe la escena indicada.
+        if(!IsSceneLoaded(name))
+        {
+            UE_LOG_WARN("SceneManager: Scene {0}, No se puede cambiar de escena. No está cargada.", name);
+            return;
+        }
+
+        //Descargamos la escena anterior en caso de haberla.
+        if(_currentScene != nullptr && IsSceneLoaded(_currentScene->GetName()))
         {
             _currentScene->SceneUnload();
-			delete _currentScene;
         }
 
-		//for (auto& it : _scenes)
-		//{
-		//	Scene* sc = it.second;
-		//	sc->SceneClean();
-		//	delete sc;
-		//}
-
-		//_scenes.clear();
-
-
+        //Cambiamos la escena activa por la nueva.
+        _currentScene = _loadedScenes.at(name);
     }
     
 
+    void SceneManager::UnloadScene(std::string name)
+    {
+        //Comprobamos si existe la escena indicada.
+        if(!IsSceneLoaded(name))
+        {
+            UE_LOG_WARN("SceneManager: Scene {0}, no se puede descargar. No está cargada.", name);
+            return;
+        }
+        //Comprobamos si se trata de la escena actual.
+        if(GetCurrentSceneName() == name)
+        {
+            //No hacemos nada, no se puede recargar la escena actual así como así.
+            UE_LOG_WARN("SceneManager: Scene {0}, no se puede descargar. Es la escena actual.", name);
+            return;
+        }
 
-	//void SceneManager::AddScene(Scene* sceneToAdd)
-	//{
-	//	_scenes.insert(std::make_pair(sceneToAdd->GetName(), sceneToAdd));
-	//	sceneToAdd->SceneInit();
-
-	//	UE_LOG_INFO("Se ha añadido la escena {0} al SceneManager.", sceneToAdd->GetName());
-	//}
+        //Si todo está correcto.
+        //Si tenemos campo libre, pista libre, punto rojo.
+        //Descargamos.
+        _loadedScenes.at(name)->SceneUnload();
+        _loadedScenes.erase(name);
+    }
 
 
-
-	//Scene* SceneManager::GetScenePtr(std::string sceneName)
-	//{
-	//	if (_scenes.find(sceneName) == _scenes.end())
-	//	{
-	//		UE_LOG_ERROR("No se ha encontrado la escena indicada.");
-	//		return nullptr;
-	//	}
-	//	return _scenes.at(sceneName);
-	//}
+    bool SceneManager::IsSceneLoaded(std::string name)
+    {
+        //Comprobamos si existe la escena indicada.
+        if(_loadedScenes.find(name) != _loadedScenes.end())
+        {
+            //Si la encontramos, existe.
+            return true;
+        }
+        return false;
+    }
 
 
-
-	std::string SceneManager::GetActiveSceneName()
+    std::string SceneManager::GetCurrentSceneName()
     {
         return _currentScene->GetName();
     }
 
-	//void SceneManager::LoadScene(std::string sceneName)
-	//{
-	//	if (_currentScene != nullptr)
-	//	{
-	//		_currentScene->SceneUnload();
-	//		delete _currentScene;
-	//	}
-
-	//	_currentScene = _scenes.at(sceneName);
-
-	//	_currentScene->SceneLoad();
-	//}
-
-	void SceneManager::NewLoadScene(int sceneID)
+    Scene* SceneManager::GetCurrentScenePtr() 
     { 
-		if (_currentScene != nullptr)
-		{
-			_currentScene->SceneUnload();
-			delete _currentScene;
-		}
-
-		_currentScene = _sceneBuilder->InstanciateScene(sceneID);
-
-		_currentScene->SceneLoad();
+        return _currentScene;
     }
 
     void SceneManager::UpdateScene()

UberEngine/src/Scene/SceneManager.h

@@ -1,71 +1,110 @@
 #pragma once
+
+#include "Scene/Scene.h"
+
 #include <string>
 #include <vector>
 #include <unordered_map>
 
 //
-// Habría que implemetar un sistema para cambiar de escena.
-// La cuestión sería almecenar el ID actual o algo así.
-// Las escenas que no están cargadas se pueden mantener construidas en el vector, pues el espacio que ocupan en memoria debería ser mínimo.
-// Cuando cargas una escena, se descarga la anterior mediante Scene.unload y se carga la nueva con Scene.Load. De esta forma,
-//		si cada escena gestiona bien sus recursos en la carga y descarga, no debería generar ningún problema y no ocupar espacio cuando esté descargada.
-//		Quizás se puede añadir una opción para mantener cargada una escena o algo.
-// 
-// Quizás es innecesaria la ID interna de la escena....
-// 
-
+// TODO:
+//  - Se podría plantear un sistema de carga asincrona para las escenas.
+//  - La variable "loaded" de las escenas no tiene mucha utilidad en este momento.
 
 namespace UE
 {
-	class Scene;
-	class SceneBuilder;
 
     /* Gestiona todas escenas. Las carga, descargar y ejecuta. */
     class SceneManager
     {
 
     public:
-		/* Constructor */
-		SceneManager() {}
 
-		void InitSceneManager(SceneBuilder* sceneBuilder);
+        /* Constructor */
+        SceneManager() 
+        {
+            InitSceneManager();
+        }
+
+        ~SceneManager()
+        {
+            CleanSceneManager();
+        }
+        
+        
+        //Inicializa el ScenenManager (En caso de haber algo que iniciar.)
+        void InitSceneManager();
+        //Limpia los contenedores de Scenes y descarga las escenas cargadas.
         void CleanSceneManager();
 
-		//Añade una escena a la lista y retorna su ID. Son Ptrs, por lo que poco importa donde los almacenamos.
-		//void AddScene(Scene* sceneToAdd);
+        /*
+         * Carga una nueva escena.
+         * Se almacena en la lista de escenas cargadas.
+         * Para cambiar de escena, usar SwitchScene();
+         * Si la escena ya estuvise cargada, se descargará la anterior y se cargará la nueva.
+         */
+        void LoadScene(Scene* sceneToLoad);
 
-		//Devuelve un ptr a la escena del ID especificado.
-		//Scene* GetScenePtr(std::string sceneName);
-		std::string GetActiveSceneName();
+        /*
+         * Cambia la escena activa por la indicada.
+         * Si la indicada no está cargada, no hace nada.
+         */
+        void SwitchScene(std::string name);
 
-		//Devuelve la escena activa.
-		inline Scene* GetActiveScenePtr() { return _currentScene; }
+        /*
+         * Carga la escena indicada.
+         * Cambia la escena actual por la nueva escena.
+         */
+        void LoadAndSwitchScene(Scene* sceneToLoad);
 
-		//Descarga la escena activa y carga la escena indicada.
-		//void LoadScene(std::string sceneName);
+        /*
+         * Cambia la escena activa por la indicada.
+         * Descarga completamente la escena activa anterior.
+         * Si la escena indicada no está cargarda, no hace nada.
+         * Si no hay una escena activa, no la descarga.
+         */
+        void SwitchAndUnloadScene(std::string name);
 
-		//Descarga la escena activa y carga la escena indicada. Para ello llama al builder que tiene y este le devuelve un ptr a la nueva escena.
-		void NewLoadScene(int sceneID);
 
-		//Pasa el Update a la escena actual.
-		//¿Necesita hacer algo más?
+        /*
+         * Descarga la escena con el nombre indicado.
+         * Si la escena no está en la lista, no hace nada.
+         */
+        void UnloadScene(std::string name);
+
+        /*
+         * Comprueba si la escena indicada está en la lista de escenas cargadas.
+         * Retorna true si está cargada, false si no.
+         */
+        bool IsSceneLoaded(std::string name);
+
+
+        /*
+         * Devuelve el nombre de la escena activa.
+         */
+        std::string GetCurrentSceneName();
+
+        /*
+         * Devuelve el ptr de la escena activa.
+         */
+        Scene* GetCurrentScenePtr();
+
+        /*
+         * Update para la escena activa.
+         * Se ha de llamar en cada frame para pasar el update a la escena activa.
+         * TODO: No se usa... O añadimos para las otras fases o quitamos esta.
+         */
         void UpdateScene();
 
-		// ¿Esto sirve para algo?
-		//void LoadSceneDataFromFile(std::string filePath);
 
 
     private:
+        //Ptr a la escena que está activa en ese momento.
         Scene* _currentScene = nullptr;
 
-		SceneBuilder* _sceneBuilder = nullptr;
-
-		//Almacenamos un ptr a las diferentes escenas disponibles. 
-		//Otra opción es trabajar con Templates para instanciar la clase pretinente sin necesidad de almacenar nada.
-		//De cualquier forma, son ptr en el Stack y deberían de eliminar todo al hacer scene.Unload().
-		//std::unordered_map<std::string, Scene*> _scenes;
-		//std::vector<Scene*> _scenes;
-
+        //Almacenamos un ptr a todas las escenas cargadas en ese momento.
+        //o, al menos, lo intentamos.
+        std::unordered_map<std::string, Scene*> _loadedScenes;
 
     };
 

UberEngine/src/Time/Time.cpp

@@ -24,17 +24,17 @@ void UE::Time::EndFrame()
     //std::cout << "FPS: " << avgFPS << " / " << "dT: " << deltaTime << std::endl;
 
     //Limitamos los FPS haciendo esperar al programa el tiempo extra que quede. 
-	//En vez de sólo esperar, se podrían hacer tareas como cargar Assets o realizar cálculos pesados.
+    //En vez de s�lo esperar, se podr�an hacer tareas como cargar Assets o realizar c�lculos pesados.
     if (frameTime < MS_PER_FRAME)
     {
         SDL_Delay(MS_PER_FRAME - frameTime);
     }
 
-	//Calculamos el deltaTime, que sí será el tiempo real que ha pasado, pues hemos esperado.
+    //Calculamos el deltaTime, que s� ser� el tiempo real que ha pasado, pues hemos esperado.
 
     frameTime = SDL_GetTicks() - _startTime;
 
-	//Convertimos deltaTime a segundos pues es lo usado en los cálculos.
+    //Convertimos deltaTime a segundos pues es lo usado en los c�lculos.
     deltaTime = frameTime / 1000.0f;
 
 

UberEngine/src/Time/Time.h

@@ -15,7 +15,7 @@ namespace UE
     public:
 
         //-------------------
-		//---- Métodos ------
+        //---- Métodos ------
         //-------------------
         static void StartFrame();
 
@@ -36,7 +36,7 @@ namespace UE
 
 
         static const int FPS = 60;
-		//Milisegundos que tiene que tener un frame para poder hacer el número de FPS por segundo.
+        //Milisegundos que tiene que tener un frame para poder hacer el número de FPS por segundo.
         static const int MS_PER_FRAME = 1000 / FPS;
     };
 

UberEngine/src/UberEngine.h

@@ -1,12 +1,14 @@
 #pragma once
 
-#include "Logging\Logger.h"
+#include "Logging/Logger.h"
 
-#include "Render\Renderer.h"
-#include "Drawables\Sprite.h"
+#include "Render/Renderer.h"
+#include "Render/Camera.h"
 
-#include "Assets\AssetManager.h"
+#include "Drawables/Sprite.h"
 
-#include "Scene\SceneManager.h"
+#include "Assets/AssetManager.h"
 
-#include "Time\Time.h"
+#include "Scene/SceneManager.h"
+
+#include "Time/Time.h"

UberEngine/src/defs.h

@@ -0,0 +1,7 @@
+/*
+
+Aquí habrá que definir los tipos custom para UberEngine.
+Por ejemplo:
+ - glm::ivec2 -> UE_Vec2
+
+*/

UberEngine/vendor/ImGui/LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2014-2021 Omar Cornut
+Copyright (c) 2014-2022 Omar Cornut
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

UberEngine/vendor/ImGui/imconfig.h

@@ -28,12 +28,13 @@
 
 //---- Don't define obsolete functions/enums/behaviors. Consider enabling from time to time after updating to avoid using soon-to-be obsolete function/names.
 //#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+//#define IMGUI_DISABLE_OBSOLETE_KEYIO                      // 1.87: disable legacy io.KeyMap[]+io.KeysDown[] in favor io.AddKeyEvent(). This will be folded into IMGUI_DISABLE_OBSOLETE_FUNCTIONS in a few versions.
 
-//---- Disable all of Dear ImGui or don't implement standard windows.
-// It is very strongly recommended to NOT disable the demo windows during development. Please read comments in imgui_demo.cpp.
+//---- Disable all of Dear ImGui or don't implement standard windows/tools.
+// It is very strongly recommended to NOT disable the demo windows and debug tool during development. They are extremely useful in day to day work. Please read comments in imgui_demo.cpp.
 //#define IMGUI_DISABLE                                     // Disable everything: all headers and source files will be empty.
-//#define IMGUI_DISABLE_DEMO_WINDOWS                        // Disable demo windows: ShowDemoWindow()/ShowStyleEditor() will be empty. Not recommended.
-//#define IMGUI_DISABLE_METRICS_WINDOW                      // Disable metrics/debugger and other debug tools: ShowMetricsWindow() and ShowStackToolWindow() will be empty.
+//#define IMGUI_DISABLE_DEMO_WINDOWS                        // Disable demo windows: ShowDemoWindow()/ShowStyleEditor() will be empty.
+//#define IMGUI_DISABLE_DEBUG_TOOLS                         // Disable metrics/debugger and other debug tools: ShowMetricsWindow(), ShowDebugLogWindow() and ShowStackToolWindow() will be empty (this was called IMGUI_DISABLE_METRICS_WINDOW before 1.88).
 
 //---- Don't implement some functions to reduce linkage requirements.
 //#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS   // [Win32] Don't implement default clipboard handler. Won't use and link with OpenClipboard/GetClipboardData/CloseClipboard etc. (user32.lib/.a, kernel32.lib/.a)
@@ -61,11 +62,12 @@
 // By default the embedded implementations are declared static and not available outside of Dear ImGui sources files.
 //#define IMGUI_STB_TRUETYPE_FILENAME   "my_folder/stb_truetype.h"
 //#define IMGUI_STB_RECT_PACK_FILENAME  "my_folder/stb_rect_pack.h"
+//#define IMGUI_STB_SPRINTF_FILENAME    "my_folder/stb_sprintf.h"    // only used if enabled
 //#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
 //#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
 
-//---- Use stb_printf's faster implementation of vsnprintf instead of the one from libc (unless IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS is defined)
-// Requires 'stb_sprintf.h' to be available in the include path. Compatibility checks of arguments and formats done by clang and GCC will be disabled in order to support the extra formats provided by STB sprintf.
+//---- Use stb_sprintf.h for a faster implementation of vsnprintf instead of the one from libc (unless IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS is defined)
+// Compatibility checks of arguments and formats done by clang and GCC will be disabled in order to support the extra formats provided by stb_sprintf.h.
 //#define IMGUI_USE_STB_SPRINTF
 
 //---- Use FreeType to build and rasterize the font atlas (instead of stb_truetype which is embedded by default in Dear ImGui)
@@ -81,11 +83,11 @@
 // This will be inlined as part of ImVec2 and ImVec4 class declarations.
 /*
 #define IM_VEC2_CLASS_EXTRA                                                     \
-        ImVec2(const MyVec2& f) { x = f.x; y = f.y; }                       \
+        constexpr ImVec2(const MyVec2& f) : x(f.x), y(f.y) {}                   \
         operator MyVec2() const { return MyVec2(x,y); }
 
 #define IM_VEC4_CLASS_EXTRA                                                     \
-        ImVec4(const MyVec4& f) { x = f.x; y = f.y; z = f.z; w = f.w; }     \
+        constexpr ImVec4(const MyVec4& f) : x(f.x), y(f.y), z(f.z), w(f.w) {}   \
         operator MyVec4() const { return MyVec4(x,y,z,w); }
 */
 

UberEngine/vendor/ImGui/imgui.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.86
+// dear imgui, v1.88
 // (headers)
 
 // Help:
@@ -11,7 +11,7 @@
 // - FAQ                   http://dearimgui.org/faq
 // - Homepage & latest     https://github.com/ocornut/imgui
 // - Releases & changelog  https://github.com/ocornut/imgui/releases
-// - Gallery               https://github.com/ocornut/imgui/issues/4451 (please post your screenshots/video there!)
+// - Gallery               https://github.com/ocornut/imgui/issues/5243 (please post your screenshots/video there!)
 // - Wiki                  https://github.com/ocornut/imgui/wiki (lots of good stuff there)
 // - Glossary              https://github.com/ocornut/imgui/wiki/Glossary
 // - Issues & support      https://github.com/ocornut/imgui/issues
@@ -35,6 +35,7 @@ Index of this file:
 // [SECTION] Drawing API (ImDrawCallback, ImDrawCmd, ImDrawIdx, ImDrawVert, ImDrawChannel, ImDrawListSplitter, ImDrawFlags, ImDrawListFlags, ImDrawList, ImDrawData)
 // [SECTION] Font API (ImFontConfig, ImFontGlyph, ImFontGlyphRangesBuilder, ImFontAtlasFlags, ImFontAtlas, ImFont)
 // [SECTION] Viewports (ImGuiViewportFlags, ImGuiViewport)
+// [SECTION] Platform Dependent Interfaces (ImGuiPlatformImeData)
 // [SECTION] Obsolete functions and types
 
 */
@@ -63,8 +64,8 @@ Index of this file:
 
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
-#define IMGUI_VERSION               "1.86"
-#define IMGUI_VERSION_NUM           18600
+#define IMGUI_VERSION               "1.88"
+#define IMGUI_VERSION_NUM           18800
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
 #define IMGUI_HAS_TABLE
 
@@ -85,11 +86,7 @@ Index of this file:
 #endif
 #define IM_ARRAYSIZE(_ARR)          ((int)(sizeof(_ARR) / sizeof(*(_ARR))))     // Size of a static C-style array. Don't use on pointers!
 #define IM_UNUSED(_VAR)             ((void)(_VAR))                              // Used to silence "unused variable warnings". Often useful as asserts may be stripped out from final builds.
-#if (__cplusplus >= 201100) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201100)
 #define IM_OFFSETOF(_TYPE,_MEMBER)  offsetof(_TYPE, _MEMBER)                    // Offset of _MEMBER within _TYPE. Standardized as offsetof() in C++11
-#else
-#define IM_OFFSETOF(_TYPE,_MEMBER)  ((size_t)&(((_TYPE*)0)->_MEMBER))           // Offset of _MEMBER within _TYPE. Old style macro.
-#endif
 
 // Helper Macros - IM_FMTARGS, IM_FMTLIST: Apply printf-style warnings to our formatting functions.
 #if !defined(IMGUI_USE_STB_SPRINTF) && defined(__MINGW32__) && !defined(__clang__)
@@ -104,7 +101,7 @@ Index of this file:
 #endif
 
 // Disable some of MSVC most aggressive Debug runtime checks in function header/footer (used in some simple/low-level functions)
-#if defined(_MSC_VER) && !defined(__clang__) && !defined(IMGUI_DEBUG_PARANOID)
+#if defined(_MSC_VER) && !defined(__clang__)  && !defined(__INTEL_COMPILER) && !defined(IMGUI_DEBUG_PARANOID)
 #define IM_MSVC_RUNTIME_CHECKS_OFF      __pragma(runtime_checks("",off))     __pragma(check_stack(off)) __pragma(strict_gs_check(push,off))
 #define IM_MSVC_RUNTIME_CHECKS_RESTORE  __pragma(runtime_checks("",restore)) __pragma(check_stack())    __pragma(strict_gs_check(pop))
 #else
@@ -151,9 +148,11 @@ struct ImColor;                     // Helper functions to create a color that c
 struct ImGuiContext;                // Dear ImGui context (opaque structure, unless including imgui_internal.h)
 struct ImGuiIO;                     // Main configuration and I/O between your application and ImGui
 struct ImGuiInputTextCallbackData;  // Shared state of InputText() when using custom ImGuiInputTextCallback (rare/advanced use)
+struct ImGuiKeyData;                // Storage for ImGuiIO and IsKeyDown(), IsKeyPressed() etc functions.
 struct ImGuiListClipper;            // Helper to manually clip large list of items
 struct ImGuiOnceUponAFrame;         // Helper for running a block of code not more than once a frame
 struct ImGuiPayload;                // User data payload for drag and drop operations
+struct ImGuiPlatformImeData;        // Platform IME data for io.SetPlatformImeDataFn() function.
 struct ImGuiSizeCallbackData;       // Callback data when using SetNextWindowSizeConstraints() (rare/advanced use)
 struct ImGuiStorage;                // Helper for key->value storage
 struct ImGuiStyle;                  // Runtime data for styling/colors
@@ -165,13 +164,13 @@ struct ImGuiViewport;               // A Platform Window (always only one in 'ma
 
 // Enums/Flags (declared as int for compatibility with old C++, to allow using as flags without overhead, and to not pollute the top of this file)
 // - Tip: Use your programming IDE navigation facilities on the names in the _central column_ below to find the actual flags/enum lists!
-//   In Visual Studio IDE: CTRL+comma ("Edit.NavigateTo") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+//   In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
 //   With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
 typedef int ImGuiCol;               // -> enum ImGuiCol_             // Enum: A color identifier for styling
 typedef int ImGuiCond;              // -> enum ImGuiCond_            // Enum: A condition for many Set*() functions
 typedef int ImGuiDataType;          // -> enum ImGuiDataType_        // Enum: A primary data type
 typedef int ImGuiDir;               // -> enum ImGuiDir_             // Enum: A cardinal direction
-typedef int ImGuiKey;               // -> enum ImGuiKey_             // Enum: A key identifier (ImGui-side enum)
+typedef int ImGuiKey;               // -> enum ImGuiKey_             // Enum: A key identifier
 typedef int ImGuiNavInput;          // -> enum ImGuiNavInput_        // Enum: An input identifier for navigation
 typedef int ImGuiMouseButton;       // -> enum ImGuiMouseButton_     // Enum: A mouse button identifier (0=left, 1=right, 2=middle)
 typedef int ImGuiMouseCursor;       // -> enum ImGuiMouseCursor_     // Enum: A mouse cursor identifier
@@ -190,7 +189,7 @@ typedef int ImGuiDragDropFlags;     // -> enum ImGuiDragDropFlags_   // Flags: f
 typedef int ImGuiFocusedFlags;      // -> enum ImGuiFocusedFlags_    // Flags: for IsWindowFocused()
 typedef int ImGuiHoveredFlags;      // -> enum ImGuiHoveredFlags_    // Flags: for IsItemHovered(), IsWindowHovered() etc.
 typedef int ImGuiInputTextFlags;    // -> enum ImGuiInputTextFlags_  // Flags: for InputText(), InputTextMultiline()
-typedef int ImGuiKeyModFlags;       // -> enum ImGuiKeyModFlags_     // Flags: for io.KeyMods (Ctrl/Shift/Alt/Super)
+typedef int ImGuiModFlags;          // -> enum ImGuiModFlags_        // Flags: for io.KeyMods (Ctrl/Shift/Alt/Super)
 typedef int ImGuiPopupFlags;        // -> enum ImGuiPopupFlags_      // Flags: for OpenPopup*(), BeginPopupContext*(), IsPopupOpen()
 typedef int ImGuiSelectableFlags;   // -> enum ImGuiSelectableFlags_ // Flags: for Selectable()
 typedef int ImGuiSliderFlags;       // -> enum ImGuiSliderFlags_     // Flags: for DragFloat(), DragInt(), SliderFloat(), SliderInt() etc.
@@ -225,17 +224,8 @@ typedef signed short        ImS16;  // 16-bit signed integer
 typedef unsigned short      ImU16;  // 16-bit unsigned integer
 typedef signed int          ImS32;  // 32-bit signed integer == int
 typedef unsigned int        ImU32;  // 32-bit unsigned integer (often used to store packed colors)
-#if defined(_MSC_VER) && !defined(__clang__)
-typedef signed   __int64    ImS64;  // 64-bit signed integer (pre and post C++11 with Visual Studio)
-typedef unsigned __int64    ImU64;  // 64-bit unsigned integer (pre and post C++11 with Visual Studio)
-#elif (defined(__clang__) || defined(__GNUC__)) && (__cplusplus < 201100)
-#include <stdint.h>
-typedef int64_t             ImS64;  // 64-bit signed integer (pre C++11)
-typedef uint64_t            ImU64;  // 64-bit unsigned integer (pre C++11)
-#else
-typedef signed   long long  ImS64;  // 64-bit signed integer (post C++11)
-typedef unsigned long long  ImU64;  // 64-bit unsigned integer (post C++11)
-#endif
+typedef signed   long long  ImS64;  // 64-bit signed integer
+typedef unsigned long long  ImU64;  // 64-bit unsigned integer
 
 // Character types
 // (we generally use UTF-8 encoded string in the API. This is storage specifically for a decoded character used for keyboard input and display)
@@ -259,8 +249,8 @@ IM_MSVC_RUNTIME_CHECKS_OFF
 struct ImVec2
 {
     float                                   x, y;
-    ImVec2()                                { x = y = 0.0f; }
-    ImVec2(float _x, float _y)              { x = _x; y = _y; }
+    constexpr ImVec2()                      : x(0.0f), y(0.0f) { }
+    constexpr ImVec2(float _x, float _y)    : x(_x), y(_y) { }
     float  operator[] (size_t idx) const    { IM_ASSERT(idx <= 1); return (&x)[idx]; }    // We very rarely use this [] operator, the assert overhead is fine.
     float& operator[] (size_t idx)          { IM_ASSERT(idx <= 1); return (&x)[idx]; }    // We very rarely use this [] operator, the assert overhead is fine.
 #ifdef IM_VEC2_CLASS_EXTRA
@@ -272,8 +262,8 @@ struct ImVec2
 struct ImVec4
 {
     float                                                     x, y, z, w;
-    ImVec4()                                        { x = y = z = w = 0.0f; }
-    ImVec4(float _x, float _y, float _z, float _w)  { x = _x; y = _y; z = _z; w = _w; }
+    constexpr ImVec4()                                        : x(0.0f), y(0.0f), z(0.0f), w(0.0f) { }
+    constexpr ImVec4(float _x, float _y, float _z, float _w)  : x(_x), y(_y), z(_z), w(_w) { }
 #ifdef IM_VEC4_CLASS_EXTRA
     IM_VEC4_CLASS_EXTRA     // Define additional constructors and implicit cast operators in imconfig.h to convert back and forth between your math types and ImVec4.
 #endif
@@ -307,6 +297,7 @@ namespace ImGui
     // Demo, Debug, Information
     IMGUI_API void          ShowDemoWindow(bool* p_open = NULL);        // create Demo window. demonstrate most ImGui features. call this to learn about the library! try to make it always available in your application!
     IMGUI_API void          ShowMetricsWindow(bool* p_open = NULL);     // create Metrics/Debugger window. display Dear ImGui internals: windows, draw commands, various internal state, etc.
+    IMGUI_API void          ShowDebugLogWindow(bool* p_open = NULL);    // create Debug Log window. display a simplified log of important dear imgui events.
     IMGUI_API void          ShowStackToolWindow(bool* p_open = NULL);   // create Stack Tool window. hover items with mouse to query information about the source of their unique ID.
     IMGUI_API void          ShowAboutWindow(bool* p_open = NULL);       // create About window. display Dear ImGui version, credits and build/system information.
     IMGUI_API void          ShowStyleEditor(ImGuiStyle* ref = NULL);    // add style editor block (not a window). you can pass in a reference ImGuiStyle structure to compare to, revert to and save to (else it uses the default style)
@@ -524,7 +515,8 @@ namespace ImGui
 
     // Widgets: Drag Sliders
     // - CTRL+Click on any drag box to turn them into an input box. Manually input values aren't clamped by default and can go off-bounds. Use ImGuiSliderFlags_AlwaysClamp to always clamp.
-    // - For all the Float2/Float3/Float4/Int2/Int3/Int4 versions of every functions, note that a 'float v[X]' function argument is the same as 'float* v', the array syntax is just a way to document the number of elements that are expected to be accessible. You can pass address of your first element out of a contiguous set, e.g. &myvector.x
+    // - For all the Float2/Float3/Float4/Int2/Int3/Int4 versions of every functions, note that a 'float v[X]' function argument is the same as 'float* v',
+    //   the array syntax is just a way to document the number of elements that are expected to be accessible. You can pass address of your first element out of a contiguous set, e.g. &myvector.x
     // - Adjust format string to decorate the value with a prefix, a suffix, or adapt the editing and display precision e.g. "%.3f" -> 1.234; "%5.2f secs" -> 01.23 secs; "Biscuit: %.0f" -> Biscuit: 1; etc.
     // - Format string may also be set to NULL or use the default format ("%f" or "%d").
     // - Speed are per-pixel of mouse movement (v_speed=0.2f: mouse needs to move by 5 pixels to increase value by 1). For gamepad/keyboard navigation, minimum speed is Max(v_speed, minimum_step_at_given_precision).
@@ -592,7 +584,7 @@ namespace ImGui
     IMGUI_API bool          ColorEdit4(const char* label, float col[4], ImGuiColorEditFlags flags = 0);
     IMGUI_API bool          ColorPicker3(const char* label, float col[3], ImGuiColorEditFlags flags = 0);
     IMGUI_API bool          ColorPicker4(const char* label, float col[4], ImGuiColorEditFlags flags = 0, const float* ref_col = NULL);
-    IMGUI_API bool          ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFlags flags = 0, ImVec2 size = ImVec2(0, 0)); // display a color square/button, hover for details, return true when pressed.
+    IMGUI_API bool          ColorButton(const char* desc_id, const ImVec4& col, ImGuiColorEditFlags flags = 0, const ImVec2& size = ImVec2(0, 0)); // display a color square/button, hover for details, return true when pressed.
     IMGUI_API void          SetColorEditOptions(ImGuiColorEditFlags flags);                     // initialize current options (generally on application startup) if you want to select a default format, picker type, etc. User will be able to change many settings, unless you pass the _NoOptions flag to your calls.
 
     // Widgets: Trees
@@ -690,6 +682,7 @@ namespace ImGui
     //  - CloseCurrentPopup() is called by default by Selectable()/MenuItem() when activated (FIXME: need some options).
     //  - Use ImGuiPopupFlags_NoOpenOverExistingPopup to avoid opening a popup if there's already one at the same level. This is equivalent to e.g. testing for !IsAnyPopupOpen() prior to OpenPopup().
     //  - Use IsWindowAppearing() after BeginPopup() to tell if a window just opened.
+    //  - IMPORTANT: Notice that for OpenPopupOnItemClick() we exceptionally default flags to 1 (== ImGuiPopupFlags_MouseButtonRight) for backward compatibility with older API taking 'int mouse_button = 1' parameter
     IMGUI_API void          OpenPopup(const char* str_id, ImGuiPopupFlags popup_flags = 0);                     // call to mark popup as open (don't call every frame!).
     IMGUI_API void          OpenPopup(ImGuiID id, ImGuiPopupFlags popup_flags = 0);                             // id overload to facilitate calling from nested stacks
     IMGUI_API void          OpenPopupOnItemClick(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1);   // helper to open popup when clicked on last item. Default to ImGuiPopupFlags_MouseButtonRight == 1. (note: actually triggers on the mouse _released_ event to be consistent with popup behaviors)
@@ -699,7 +692,7 @@ namespace ImGui
     //  - Helpers to do OpenPopup+BeginPopup where the Open action is triggered by e.g. hovering an item and right-clicking.
     //  - They are convenient to easily create context menus, hence the name.
     //  - IMPORTANT: Notice that BeginPopupContextXXX takes ImGuiPopupFlags just like OpenPopup() and unlike BeginPopup(). For full consistency, we may add ImGuiWindowFlags to the BeginPopupContextXXX functions in the future.
-    //  - IMPORTANT: we exceptionally default their flags to 1 (== ImGuiPopupFlags_MouseButtonRight) for backward compatibility with older API taking 'int mouse_button = 1' parameter, so if you add other flags remember to re-add the ImGuiPopupFlags_MouseButtonRight.
+    //  - IMPORTANT: Notice that we exceptionally default their flags to 1 (== ImGuiPopupFlags_MouseButtonRight) for backward compatibility with older API taking 'int mouse_button = 1' parameter, so if you add other flags remember to re-add the ImGuiPopupFlags_MouseButtonRight.
     IMGUI_API bool          BeginPopupContextItem(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1);  // open+begin popup when clicked on last item. Use str_id==NULL to associate the popup to previous item. If you want to use that on a non-interactive item such as Text() you need to pass in an explicit ID here. read comments in .cpp!
     IMGUI_API bool          BeginPopupContextWindow(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1);// open+begin popup when clicked on current window.
     IMGUI_API bool          BeginPopupContextVoid(const char* str_id = NULL, ImGuiPopupFlags popup_flags = 1);  // open+begin popup when clicked in void (where there are no windows).
@@ -711,13 +704,11 @@ namespace ImGui
     IMGUI_API bool          IsPopupOpen(const char* str_id, ImGuiPopupFlags flags = 0);                         // return true if the popup is open.
 
     // Tables
-    // [BETA API] API may evolve slightly! If you use this, please update to the next version when it comes out!
     // - Full-featured replacement for old Columns API.
-    // - See Demo->Tables for demo code.
-    // - See top of imgui_tables.cpp for general commentary.
+    // - See Demo->Tables for demo code. See top of imgui_tables.cpp for general commentary.
     // - See ImGuiTableFlags_ and ImGuiTableColumnFlags_ enums for a description of available flags.
     // The typical call flow is:
-    // - 1. Call BeginTable().
+    // - 1. Call BeginTable(), early out if returning false.
     // - 2. Optionally call TableSetupColumn() to submit column name/flags/defaults.
     // - 3. Optionally call TableSetupScrollFreeze() to request scroll freezing of columns/rows.
     // - 4. Optionally call TableHeadersRow() to submit a header row. Names are pulled from TableSetupColumn() data.
@@ -754,16 +745,13 @@ namespace ImGui
     IMGUI_API void          TableHeadersRow();                                  // submit all headers cells based on data provided to TableSetupColumn() + submit context menu
     IMGUI_API void          TableHeader(const char* label);                     // submit one header cell manually (rarely used)
 
-    // Tables: Sorting
-    // - Call TableGetSortSpecs() to retrieve latest sort specs for the table. NULL when not sorting.
-    // - When 'SpecsDirty == true' you should sort your data. It will be true when sorting specs have changed
-    //   since last call, or the first time. Make sure to set 'SpecsDirty = false' after sorting, else you may
-    //   wastefully sort your data every frame!
-    // - Lifetime: don't hold on this pointer over multiple frames or past any subsequent call to BeginTable().
-    IMGUI_API ImGuiTableSortSpecs*  TableGetSortSpecs();                        // get latest sort specs for the table (NULL if not sorting).
-
-    // Tables: Miscellaneous functions
+    // Tables: Sorting & Miscellaneous functions
+    // - Sorting: call TableGetSortSpecs() to retrieve latest sort specs for the table. NULL when not sorting.
+    //   When 'sort_specs->SpecsDirty == true' you should sort your data. It will be true when sorting specs have
+    //   changed since last call, or the first time. Make sure to set 'SpecsDirty = false' after sorting,
+    //   else you may wastefully sort your data every frame!
     // - Functions args 'int column_n' treat the default value of -1 as the same as passing the current column index.
+    IMGUI_API ImGuiTableSortSpecs*  TableGetSortSpecs();                        // get latest sort specs for the table (NULL if not sorting).  Lifetime: don't hold on this pointer over multiple frames or past any subsequent call to BeginTable().
     IMGUI_API int                   TableGetColumnCount();                      // return number of columns (value passed to BeginTable)
     IMGUI_API int                   TableGetColumnIndex();                      // return current column index.
     IMGUI_API int                   TableGetRowIndex();                         // return current row index.
@@ -807,7 +795,7 @@ namespace ImGui
     // - If you stop calling BeginDragDropSource() the payload is preserved however it won't have a preview tooltip (we currently display a fallback "..." tooltip, see #1725)
     // - An item can be both drag source and drop target.
     IMGUI_API bool          BeginDragDropSource(ImGuiDragDropFlags flags = 0);                                      // call after submitting an item which may be dragged. when this return true, you can call SetDragDropPayload() + EndDragDropSource()
-    IMGUI_API bool          SetDragDropPayload(const char* type, const void* data, size_t sz, ImGuiCond cond = 0);  // type is a user defined string of maximum 32 characters. Strings starting with '_' are reserved for dear imgui internal types. Data is copied and held by imgui.
+    IMGUI_API bool          SetDragDropPayload(const char* type, const void* data, size_t sz, ImGuiCond cond = 0);  // type is a user defined string of maximum 32 characters. Strings starting with '_' are reserved for dear imgui internal types. Data is copied and held by imgui. Return true when payload has been accepted.
     IMGUI_API void          EndDragDropSource();                                                                    // only call EndDragDropSource() if BeginDragDropSource() returns true!
     IMGUI_API bool                  BeginDragDropTarget();                                                          // call after submitting an item that may receive a payload. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
     IMGUI_API const ImGuiPayload*   AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0);          // accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
@@ -858,13 +846,15 @@ namespace ImGui
     // - In the future we will extend this concept further to also represent Platform Monitor and support a "no main platform window" operation mode.
     IMGUI_API ImGuiViewport* GetMainViewport();                                                 // return primary/default viewport. This can never be NULL.
 
+    // Background/Foreground Draw Lists
+    IMGUI_API ImDrawList*   GetBackgroundDrawList();                                            // this draw list will be the first rendered one. Useful to quickly draw shapes/text behind dear imgui contents.
+    IMGUI_API ImDrawList*   GetForegroundDrawList();                                            // this draw list will be the last rendered one. Useful to quickly draw shapes/text over dear imgui contents.
+
     // Miscellaneous Utilities
     IMGUI_API bool          IsRectVisible(const ImVec2& size);                                  // test if rectangle (of given size, starting from cursor position) is visible / not clipped.
     IMGUI_API bool          IsRectVisible(const ImVec2& rect_min, const ImVec2& rect_max);      // test if rectangle (in screen space) is visible / not clipped. to perform coarse clipping on user's side.
     IMGUI_API double        GetTime();                                                          // get global imgui time. incremented by io.DeltaTime every frame.
     IMGUI_API int           GetFrameCount();                                                    // get global imgui frame count. incremented by 1 every frame.
-    IMGUI_API ImDrawList*   GetBackgroundDrawList();                                            // this draw list will be the first rendering one. Useful to quickly draw shapes/text behind dear imgui contents.
-    IMGUI_API ImDrawList*   GetForegroundDrawList();                                            // this draw list will be the last rendered one. Useful to quickly draw shapes/text over dear imgui contents.
     IMGUI_API ImDrawListSharedData* GetDrawListSharedData();                                    // you may use this when creating your own ImDrawList instances.
     IMGUI_API const char*   GetStyleColorName(ImGuiCol idx);                                    // get a string corresponding to the enum value (for display, saving, etc.).
     IMGUI_API void          SetStateStorage(ImGuiStorage* storage);                             // replace current window storage with our own (if you want to manipulate it yourself, typically clear subsection of it)
@@ -882,14 +872,17 @@ namespace ImGui
     IMGUI_API void          ColorConvertHSVtoRGB(float h, float s, float v, float& out_r, float& out_g, float& out_b);
 
     // Inputs Utilities: Keyboard
-    // - For 'int user_key_index' you can use your own indices/enums according to how your backend/engine stored them in io.KeysDown[].
-    // - We don't know the meaning of those value. You can use GetKeyIndex() to map a ImGuiKey_ value into the user index.
-    IMGUI_API int           GetKeyIndex(ImGuiKey imgui_key);                                    // map ImGuiKey_* values into user's key index. == io.KeyMap[key]
-    IMGUI_API bool          IsKeyDown(int user_key_index);                                      // is key being held. == io.KeysDown[user_key_index].
-    IMGUI_API bool          IsKeyPressed(int user_key_index, bool repeat = true);               // was key pressed (went from !Down to Down)? if repeat=true, uses io.KeyRepeatDelay / KeyRepeatRate
-    IMGUI_API bool          IsKeyReleased(int user_key_index);                                  // was key released (went from Down to !Down)?
-    IMGUI_API int           GetKeyPressedAmount(int key_index, float repeat_delay, float rate); // uses provided repeat rate/delay. return a count, most often 0 or 1 but might be >1 if RepeatRate is small enough that DeltaTime > RepeatRate
-    IMGUI_API void          CaptureKeyboardFromApp(bool want_capture_keyboard_value = true);    // attention: misleading name! manually override io.WantCaptureKeyboard flag next frame (said flag is entirely left for your application to handle). e.g. force capture keyboard when your widget is being hovered. This is equivalent to setting "io.WantCaptureKeyboard = want_capture_keyboard_value"; after the next NewFrame() call.
+    // Without IMGUI_DISABLE_OBSOLETE_KEYIO: (legacy support)
+    //   - For 'ImGuiKey key' you can still use your legacy native/user indices according to how your backend/engine stored them in io.KeysDown[].
+    // With IMGUI_DISABLE_OBSOLETE_KEYIO: (this is the way forward)
+    //   - Any use of 'ImGuiKey' will assert when key < 512 will be passed, previously reserved as native/user keys indices
+    //   - GetKeyIndex() is pass-through and therefore deprecated (gone if IMGUI_DISABLE_OBSOLETE_KEYIO is defined)
+    IMGUI_API bool          IsKeyDown(ImGuiKey key);                                            // is key being held.
+    IMGUI_API bool          IsKeyPressed(ImGuiKey key, bool repeat = true);                     // was key pressed (went from !Down to Down)? if repeat=true, uses io.KeyRepeatDelay / KeyRepeatRate
+    IMGUI_API bool          IsKeyReleased(ImGuiKey key);                                        // was key released (went from Down to !Down)?
+    IMGUI_API int           GetKeyPressedAmount(ImGuiKey key, float repeat_delay, float rate);  // uses provided repeat rate/delay. return a count, most often 0 or 1 but might be >1 if RepeatRate is small enough that DeltaTime > RepeatRate
+    IMGUI_API const char*   GetKeyName(ImGuiKey key);                                           // [DEBUG] returns English name of the key. Those names a provided for debugging purpose and are not meant to be saved persistently not compared.
+    IMGUI_API void          SetNextFrameWantCaptureKeyboard(bool want_capture_keyboard);        // Override io.WantCaptureKeyboard flag next frame (said flag is left for your application to handle, typically when true it instructs your app to ignore inputs). e.g. force capture keyboard when your widget is being hovered. This is equivalent to setting "io.WantCaptureKeyboard = want_capture_keyboard"; after the next NewFrame() call.
 
     // Inputs Utilities: Mouse
     // - To refer to a mouse button, you may use named enums in your code e.g. ImGuiMouseButton_Left, ImGuiMouseButton_Right.
@@ -902,7 +895,7 @@ namespace ImGui
     IMGUI_API int           GetMouseClickedCount(ImGuiMouseButton button);                      // return the number of successive mouse-clicks at the time where a click happen (otherwise 0).
     IMGUI_API bool          IsMouseHoveringRect(const ImVec2& r_min, const ImVec2& r_max, bool clip = true);// is mouse hovering given bounding rect (in screen space). clipped by current clipping settings, but disregarding of other consideration of focus/window ordering/popup-block.
     IMGUI_API bool          IsMousePosValid(const ImVec2* mouse_pos = NULL);                    // by convention we use (-FLT_MAX,-FLT_MAX) to denote that there is no mouse available
-    IMGUI_API bool          IsAnyMouseDown();                                                   // is any mouse button held?
+    IMGUI_API bool          IsAnyMouseDown();                                                   // [WILL OBSOLETE] is any mouse button held? This was designed for backends, but prefer having backend maintain a mask of held mouse buttons, because upcoming input queue system will make this invalid.
     IMGUI_API ImVec2        GetMousePos();                                                      // shortcut to ImGui::GetIO().MousePos provided by user, to be consistent with other calls
     IMGUI_API ImVec2        GetMousePosOnOpeningCurrentPopup();                                 // retrieve mouse position at the time of opening popup we have BeginPopup() into (helper to avoid user backing that value themselves)
     IMGUI_API bool          IsMouseDragging(ImGuiMouseButton button, float lock_threshold = -1.0f);         // is mouse dragging? (if lock_threshold < -1.0f, uses io.MouseDraggingThreshold)
@@ -910,7 +903,7 @@ namespace ImGui
     IMGUI_API void          ResetMouseDragDelta(ImGuiMouseButton button = 0);                   //
     IMGUI_API ImGuiMouseCursor GetMouseCursor();                                                // get desired cursor type, reset in ImGui::NewFrame(), this is updated during the frame. valid before Render(). If you use software rendering by setting io.MouseDrawCursor ImGui will render those for you
     IMGUI_API void          SetMouseCursor(ImGuiMouseCursor cursor_type);                       // set desired cursor type
-    IMGUI_API void          CaptureMouseFromApp(bool want_capture_mouse_value = true);          // attention: misleading name! manually override io.WantCaptureMouse flag next frame (said flag is entirely left for your application to handle). This is equivalent to setting "io.WantCaptureMouse = want_capture_mouse_value;" after the next NewFrame() call.
+    IMGUI_API void          SetNextFrameWantCaptureMouse(bool want_capture_mouse);              // Override io.WantCaptureMouse flag next frame (said flag is left for your application to handle, typical when true it instucts your app to ignore inputs). This is equivalent to setting "io.WantCaptureMouse = want_capture_mouse;" after the next NewFrame() call.
 
     // Clipboard Utilities
     // - Also see the LogToClipboard() function to capture GUI into clipboard, or easily output text data to the clipboard.
@@ -927,7 +920,7 @@ namespace ImGui
     IMGUI_API const char*   SaveIniSettingsToMemory(size_t* out_ini_size = NULL);               // return a zero-terminated string with the .ini data which you can save by your own mean. call when io.WantSaveIniSettings is set, then save data by your own mean and clear io.WantSaveIniSettings.
 
     // Debug Utilities
-    // - This is used by the IMGUI_CHECKVERSION() macro.
+    IMGUI_API void          DebugTextEncoding(const char* text);
     IMGUI_API bool          DebugCheckVersionAndDataLayout(const char* version_str, size_t sz_io, size_t sz_style, size_t sz_vec2, size_t sz_vec4, size_t sz_drawvert, size_t sz_drawidx); // This is called by IMGUI_CHECKVERSION() macro.
 
     // Memory Allocators
@@ -980,9 +973,7 @@ enum ImGuiWindowFlags_
     ImGuiWindowFlags_Popup                  = 1 << 26,  // Don't use! For internal use by BeginPopup()
     ImGuiWindowFlags_Modal                  = 1 << 27,  // Don't use! For internal use by BeginPopupModal()
     ImGuiWindowFlags_ChildMenu              = 1 << 28   // Don't use! For internal use by BeginMenu()
-
-    // [Obsolete]
-    //ImGuiWindowFlags_ResizeFromAnySide    = 1 << 17,  // --> Set io.ConfigWindowsResizeFromEdges=true and make sure mouse cursors are supported by backend (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors)
+    //ImGuiWindowFlags_ResizeFromAnySide    = 1 << 17,  // [Obsolete] --> Set io.ConfigWindowsResizeFromEdges=true and make sure mouse cursors are supported by backend (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors)
 };
 
 // Flags for ImGui::InputText()
@@ -1117,8 +1108,7 @@ enum ImGuiTabItemFlags_
 };
 
 // Flags for ImGui::BeginTable()
-// [BETA API] API may evolve slightly! If you use this, please update to the next version when it comes out!
-// - Important! Sizing policies have complex and subtle side effects, more so than you would expect.
+// - Important! Sizing policies have complex and subtle side effects, much more so than you would expect.
 //   Read comments/demos carefully + experiment with live demos to get acquainted with them.
 // - The DEFAULT sizing policies are:
 //    - Default to ImGuiTableFlags_SizingFixedFit    if ScrollX is on, or if host window has ImGuiWindowFlags_AlwaysAutoResize.
@@ -1126,8 +1116,8 @@ enum ImGuiTabItemFlags_
 // - When ScrollX is off:
 //    - Table defaults to ImGuiTableFlags_SizingStretchSame -> all Columns defaults to ImGuiTableColumnFlags_WidthStretch with same weight.
 //    - Columns sizing policy allowed: Stretch (default), Fixed/Auto.
-//    - Fixed Columns will generally obtain their requested width (unless the table cannot fit them all).
-//    - Stretch Columns will share the remaining width.
+//    - Fixed Columns (if any) will generally obtain their requested width (unless the table cannot fit them all).
+//    - Stretch Columns will share the remaining width according to their respective weight.
 //    - Mixed Fixed/Stretch columns is possible but has various side-effects on resizing behaviors.
 //      The typical use of mixing sizing policies is: any number of LEADING Fixed columns, followed by one or two TRAILING Stretch columns.
 //      (this is because the visible order of columns have subtle but necessary effects on how they react to manual resizing).
@@ -1241,7 +1231,7 @@ enum ImGuiTableColumnFlags_
 enum ImGuiTableRowFlags_
 {
     ImGuiTableRowFlags_None                         = 0,
-    ImGuiTableRowFlags_Headers                      = 1 << 0    // Identify header row (set default background color + width of its contents accounted different for auto column width)
+    ImGuiTableRowFlags_Headers                      = 1 << 0    // Identify header row (set default background color + width of its contents accounted differently for auto column width)
 };
 
 // Enum for ImGui::TableSetBgColor()
@@ -1289,6 +1279,7 @@ enum ImGuiHoveredFlags_
     ImGuiHoveredFlags_AllowWhenBlockedByActiveItem  = 1 << 7,   // Return true even if an active item is blocking access to this item/window. Useful for Drag and Drop patterns.
     ImGuiHoveredFlags_AllowWhenOverlapped           = 1 << 8,   // IsItemHovered() only: Return true even if the position is obstructed or overlapped by another window
     ImGuiHoveredFlags_AllowWhenDisabled             = 1 << 9,   // IsItemHovered() only: Return true even if the item is disabled
+    ImGuiHoveredFlags_NoNavOverride                 = 1 << 10,  // Disable using gamepad/keyboard navigation state when active, always query mouse.
     ImGuiHoveredFlags_RectOnly                      = ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem | ImGuiHoveredFlags_AllowWhenOverlapped,
     ImGuiHoveredFlags_RootAndChildWindows           = ImGuiHoveredFlags_RootWindow | ImGuiHoveredFlags_ChildWindows
 };
@@ -1350,10 +1341,13 @@ enum ImGuiSortDirection_
     ImGuiSortDirection_Descending   = 2     // Descending = 9->0, Z->A etc.
 };
 
-// User fill ImGuiIO.KeyMap[] array with indices into the ImGuiIO.KeysDown[512] array
+// Keys value 0 to 511 are left unused as legacy native/opaque key values (< 1.87)
+// Keys value >= 512 are named keys (>= 1.87)
 enum ImGuiKey_
 {
-    ImGuiKey_Tab,
+    // Keyboard
+    ImGuiKey_None = 0,
+    ImGuiKey_Tab = 512,             // == ImGuiKey_NamedKey_BEGIN
     ImGuiKey_LeftArrow,
     ImGuiKey_RightArrow,
     ImGuiKey_UpArrow,
@@ -1368,72 +1362,154 @@ enum ImGuiKey_
     ImGuiKey_Space,
     ImGuiKey_Enter,
     ImGuiKey_Escape,
-    ImGuiKey_KeyPadEnter,
-    ImGuiKey_A,                 // for text edit CTRL+A: select all
-    ImGuiKey_C,                 // for text edit CTRL+C: copy
-    ImGuiKey_V,                 // for text edit CTRL+V: paste
-    ImGuiKey_X,                 // for text edit CTRL+X: cut
-    ImGuiKey_Y,                 // for text edit CTRL+Y: redo
-    ImGuiKey_Z,                 // for text edit CTRL+Z: undo
-    ImGuiKey_COUNT
+    ImGuiKey_LeftCtrl, ImGuiKey_LeftShift, ImGuiKey_LeftAlt, ImGuiKey_LeftSuper,
+    ImGuiKey_RightCtrl, ImGuiKey_RightShift, ImGuiKey_RightAlt, ImGuiKey_RightSuper,
+    ImGuiKey_Menu,
+    ImGuiKey_0, ImGuiKey_1, ImGuiKey_2, ImGuiKey_3, ImGuiKey_4, ImGuiKey_5, ImGuiKey_6, ImGuiKey_7, ImGuiKey_8, ImGuiKey_9,
+    ImGuiKey_A, ImGuiKey_B, ImGuiKey_C, ImGuiKey_D, ImGuiKey_E, ImGuiKey_F, ImGuiKey_G, ImGuiKey_H, ImGuiKey_I, ImGuiKey_J,
+    ImGuiKey_K, ImGuiKey_L, ImGuiKey_M, ImGuiKey_N, ImGuiKey_O, ImGuiKey_P, ImGuiKey_Q, ImGuiKey_R, ImGuiKey_S, ImGuiKey_T,
+    ImGuiKey_U, ImGuiKey_V, ImGuiKey_W, ImGuiKey_X, ImGuiKey_Y, ImGuiKey_Z,
+    ImGuiKey_F1, ImGuiKey_F2, ImGuiKey_F3, ImGuiKey_F4, ImGuiKey_F5, ImGuiKey_F6,
+    ImGuiKey_F7, ImGuiKey_F8, ImGuiKey_F9, ImGuiKey_F10, ImGuiKey_F11, ImGuiKey_F12,
+    ImGuiKey_Apostrophe,        // '
+    ImGuiKey_Comma,             // ,
+    ImGuiKey_Minus,             // -
+    ImGuiKey_Period,            // .
+    ImGuiKey_Slash,             // /
+    ImGuiKey_Semicolon,         // ;
+    ImGuiKey_Equal,             // =
+    ImGuiKey_LeftBracket,       // [
+    ImGuiKey_Backslash,         // \ (this text inhibit multiline comment caused by backslash)
+    ImGuiKey_RightBracket,      // ]
+    ImGuiKey_GraveAccent,       // `
+    ImGuiKey_CapsLock,
+    ImGuiKey_ScrollLock,
+    ImGuiKey_NumLock,
+    ImGuiKey_PrintScreen,
+    ImGuiKey_Pause,
+    ImGuiKey_Keypad0, ImGuiKey_Keypad1, ImGuiKey_Keypad2, ImGuiKey_Keypad3, ImGuiKey_Keypad4,
+    ImGuiKey_Keypad5, ImGuiKey_Keypad6, ImGuiKey_Keypad7, ImGuiKey_Keypad8, ImGuiKey_Keypad9,
+    ImGuiKey_KeypadDecimal,
+    ImGuiKey_KeypadDivide,
+    ImGuiKey_KeypadMultiply,
+    ImGuiKey_KeypadSubtract,
+    ImGuiKey_KeypadAdd,
+    ImGuiKey_KeypadEnter,
+    ImGuiKey_KeypadEqual,
+
+    // Gamepad (some of those are analog values, 0.0f to 1.0f)                              // NAVIGATION action
+    ImGuiKey_GamepadStart,          // Menu (Xbox)          + (Switch)   Start/Options (PS) // --
+    ImGuiKey_GamepadBack,           // View (Xbox)          - (Switch)   Share (PS)         // --
+    ImGuiKey_GamepadFaceUp,         // Y (Xbox)             X (Switch)   Triangle (PS)      // -> ImGuiNavInput_Input
+    ImGuiKey_GamepadFaceDown,       // A (Xbox)             B (Switch)   Cross (PS)         // -> ImGuiNavInput_Activate
+    ImGuiKey_GamepadFaceLeft,       // X (Xbox)             Y (Switch)   Square (PS)        // -> ImGuiNavInput_Menu
+    ImGuiKey_GamepadFaceRight,      // B (Xbox)             A (Switch)   Circle (PS)        // -> ImGuiNavInput_Cancel
+    ImGuiKey_GamepadDpadUp,         // D-pad Up                                             // -> ImGuiNavInput_DpadUp
+    ImGuiKey_GamepadDpadDown,       // D-pad Down                                           // -> ImGuiNavInput_DpadDown
+    ImGuiKey_GamepadDpadLeft,       // D-pad Left                                           // -> ImGuiNavInput_DpadLeft
+    ImGuiKey_GamepadDpadRight,      // D-pad Right                                          // -> ImGuiNavInput_DpadRight
+    ImGuiKey_GamepadL1,             // L Bumper (Xbox)      L (Switch)   L1 (PS)            // -> ImGuiNavInput_FocusPrev + ImGuiNavInput_TweakSlow
+    ImGuiKey_GamepadR1,             // R Bumper (Xbox)      R (Switch)   R1 (PS)            // -> ImGuiNavInput_FocusNext + ImGuiNavInput_TweakFast
+    ImGuiKey_GamepadL2,             // L Trigger (Xbox)     ZL (Switch)  L2 (PS) [Analog]
+    ImGuiKey_GamepadR2,             // R Trigger (Xbox)     ZR (Switch)  R2 (PS) [Analog]
+    ImGuiKey_GamepadL3,             // L Thumbstick (Xbox)  L3 (Switch)  L3 (PS)
+    ImGuiKey_GamepadR3,             // R Thumbstick (Xbox)  R3 (Switch)  R3 (PS)
+    ImGuiKey_GamepadLStickUp,       // [Analog]                                             // -> ImGuiNavInput_LStickUp
+    ImGuiKey_GamepadLStickDown,     // [Analog]                                             // -> ImGuiNavInput_LStickDown
+    ImGuiKey_GamepadLStickLeft,     // [Analog]                                             // -> ImGuiNavInput_LStickLeft
+    ImGuiKey_GamepadLStickRight,    // [Analog]                                             // -> ImGuiNavInput_LStickRight
+    ImGuiKey_GamepadRStickUp,       // [Analog]
+    ImGuiKey_GamepadRStickDown,     // [Analog]
+    ImGuiKey_GamepadRStickLeft,     // [Analog]
+    ImGuiKey_GamepadRStickRight,    // [Analog]
+
+    // Keyboard Modifiers (explicitly submitted by backend via AddKeyEvent() calls)
+    // - This is mirroring the data also written to io.KeyCtrl, io.KeyShift, io.KeyAlt, io.KeySuper, in a format allowing
+    //   them to be accessed via standard key API, allowing calls such as IsKeyPressed(), IsKeyReleased(), querying duration etc.
+    // - Code polling every keys (e.g. an interface to detect a key press for input mapping) might want to ignore those
+    //   and prefer using the real keys (e.g. ImGuiKey_LeftCtrl, ImGuiKey_RightCtrl instead of ImGuiKey_ModCtrl).
+    // - In theory the value of keyboard modifiers should be roughly equivalent to a logical or of the equivalent left/right keys.
+    //   In practice: it's complicated; mods are often provided from different sources. Keyboard layout, IME, sticky keys and
+    //   backends tend to interfere and break that equivalence. The safer decision is to relay that ambiguity down to the end-user...
+    ImGuiKey_ModCtrl, ImGuiKey_ModShift, ImGuiKey_ModAlt, ImGuiKey_ModSuper,
+
+    // End of list
+    ImGuiKey_COUNT,                 // No valid ImGuiKey is ever greater than this value
+
+    // [Internal] Prior to 1.87 we required user to fill io.KeysDown[512] using their own native index + a io.KeyMap[] array.
+    // We are ditching this method but keeping a legacy path for user code doing e.g. IsKeyPressed(MY_NATIVE_KEY_CODE)
+    ImGuiKey_NamedKey_BEGIN         = 512,
+    ImGuiKey_NamedKey_END           = ImGuiKey_COUNT,
+    ImGuiKey_NamedKey_COUNT         = ImGuiKey_NamedKey_END - ImGuiKey_NamedKey_BEGIN,
+#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
+    ImGuiKey_KeysData_SIZE          = ImGuiKey_NamedKey_COUNT,          // Size of KeysData[]: only hold named keys
+    ImGuiKey_KeysData_OFFSET        = ImGuiKey_NamedKey_BEGIN           // First key stored in io.KeysData[0]. Accesses to io.KeysData[] must use (key - ImGuiKey_KeysData_OFFSET).
+#else
+    ImGuiKey_KeysData_SIZE          = ImGuiKey_COUNT,                   // Size of KeysData[]: hold legacy 0..512 keycodes + named keys
+    ImGuiKey_KeysData_OFFSET        = 0                                 // First key stored in io.KeysData[0]. Accesses to io.KeysData[] must use (key - ImGuiKey_KeysData_OFFSET).
+#endif
+
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    , ImGuiKey_KeyPadEnter = ImGuiKey_KeypadEnter   // Renamed in 1.87
+#endif
 };
 
-// To test io.KeyMods (which is a combination of individual fields io.KeyCtrl, io.KeyShift, io.KeyAlt set by user/backend)
-enum ImGuiKeyModFlags_
+// Helper "flags" version of key-mods to store and compare multiple key-mods easily. Sometimes used for storage (e.g. io.KeyMods) but otherwise not much used in public API.
+enum ImGuiModFlags_
 {
-    ImGuiKeyModFlags_None       = 0,
-    ImGuiKeyModFlags_Ctrl       = 1 << 0,
-    ImGuiKeyModFlags_Shift      = 1 << 1,
-    ImGuiKeyModFlags_Alt        = 1 << 2,
-    ImGuiKeyModFlags_Super      = 1 << 3
+    ImGuiModFlags_None              = 0,
+    ImGuiModFlags_Ctrl              = 1 << 0,
+    ImGuiModFlags_Shift             = 1 << 1,
+    ImGuiModFlags_Alt               = 1 << 2,   // Menu
+    ImGuiModFlags_Super             = 1 << 3    // Cmd/Super/Windows key
 };
 
 // Gamepad/Keyboard navigation
-// Keyboard: Set io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard to enable. NewFrame() will automatically fill io.NavInputs[] based on your io.KeysDown[] + io.KeyMap[] arrays.
+// Since >= 1.87 backends you generally don't need to care about this enum since io.NavInputs[] is setup automatically. This might become private/internal some day.
+// Keyboard: Set io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard to enable. NewFrame() will automatically fill io.NavInputs[] based on your io.AddKeyEvent() calls.
 // Gamepad:  Set io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad to enable. Backend: set ImGuiBackendFlags_HasGamepad and fill the io.NavInputs[] fields before calling NewFrame(). Note that io.NavInputs[] is cleared by EndFrame().
 // Read instructions in imgui.cpp for more details. Download PNG/PSD at http://dearimgui.org/controls_sheets.
 enum ImGuiNavInput_
 {
     // Gamepad Mapping
-    ImGuiNavInput_Activate,      // activate / open / toggle / tweak value       // e.g. Cross  (PS4), A (Xbox), A (Switch), Space (Keyboard)
-    ImGuiNavInput_Cancel,        // cancel / close / exit                        // e.g. Circle (PS4), B (Xbox), B (Switch), Escape (Keyboard)
-    ImGuiNavInput_Input,         // text input / on-screen keyboard              // e.g. Triang.(PS4), Y (Xbox), X (Switch), Return (Keyboard)
-    ImGuiNavInput_Menu,          // tap: toggle menu / hold: focus, move, resize // e.g. Square (PS4), X (Xbox), Y (Switch), Alt (Keyboard)
-    ImGuiNavInput_DpadLeft,      // move / tweak / resize window (w/ PadMenu)    // e.g. D-pad Left/Right/Up/Down (Gamepads), Arrow keys (Keyboard)
+    ImGuiNavInput_Activate,      // Activate / Open / Toggle / Tweak value       // e.g. Cross  (PS4), A (Xbox), A (Switch), Space (Keyboard)
+    ImGuiNavInput_Cancel,        // Cancel / Close / Exit                        // e.g. Circle (PS4), B (Xbox), B (Switch), Escape (Keyboard)
+    ImGuiNavInput_Input,         // Text input / On-Screen keyboard              // e.g. Triang.(PS4), Y (Xbox), X (Switch), Return (Keyboard)
+    ImGuiNavInput_Menu,          // Tap: Toggle menu / Hold: Focus, Move, Resize // e.g. Square (PS4), X (Xbox), Y (Switch), Alt (Keyboard)
+    ImGuiNavInput_DpadLeft,      // Move / Tweak / Resize window (w/ PadMenu)    // e.g. D-pad Left/Right/Up/Down (Gamepads), Arrow keys (Keyboard)
     ImGuiNavInput_DpadRight,     //
     ImGuiNavInput_DpadUp,        //
     ImGuiNavInput_DpadDown,      //
-    ImGuiNavInput_LStickLeft,    // scroll / move window (w/ PadMenu)            // e.g. Left Analog Stick Left/Right/Up/Down
+    ImGuiNavInput_LStickLeft,    // Scroll / Move window (w/ PadMenu)            // e.g. Left Analog Stick Left/Right/Up/Down
     ImGuiNavInput_LStickRight,   //
     ImGuiNavInput_LStickUp,      //
     ImGuiNavInput_LStickDown,    //
-    ImGuiNavInput_FocusPrev,     // next window (w/ PadMenu)                     // e.g. L1 or L2 (PS4), LB or LT (Xbox), L or ZL (Switch)
-    ImGuiNavInput_FocusNext,     // prev window (w/ PadMenu)                     // e.g. R1 or R2 (PS4), RB or RT (Xbox), R or ZL (Switch)
-    ImGuiNavInput_TweakSlow,     // slower tweaks                                // e.g. L1 or L2 (PS4), LB or LT (Xbox), L or ZL (Switch)
-    ImGuiNavInput_TweakFast,     // faster tweaks                                // e.g. R1 or R2 (PS4), RB or RT (Xbox), R or ZL (Switch)
+    ImGuiNavInput_FocusPrev,     // Focus Next window (w/ PadMenu)               // e.g. L1 or L2 (PS4), LB or LT (Xbox), L or ZL (Switch)
+    ImGuiNavInput_FocusNext,     // Focus Prev window (w/ PadMenu)               // e.g. R1 or R2 (PS4), RB or RT (Xbox), R or ZL (Switch)
+    ImGuiNavInput_TweakSlow,     // Slower tweaks                                // e.g. L1 or L2 (PS4), LB or LT (Xbox), L or ZL (Switch)
+    ImGuiNavInput_TweakFast,     // Faster tweaks                                // e.g. R1 or R2 (PS4), RB or RT (Xbox), R or ZL (Switch)
 
     // [Internal] Don't use directly! This is used internally to differentiate keyboard from gamepad inputs for behaviors that require to differentiate them.
-    // Keyboard behavior that have no corresponding gamepad mapping (e.g. CTRL+TAB) will be directly reading from io.KeysDown[] instead of io.NavInputs[].
-    ImGuiNavInput_KeyLeft_,      // move left                                    // = Arrow keys
-    ImGuiNavInput_KeyRight_,     // move right
-    ImGuiNavInput_KeyUp_,        // move up
-    ImGuiNavInput_KeyDown_,      // move down
-    ImGuiNavInput_COUNT,
-    ImGuiNavInput_InternalStart_ = ImGuiNavInput_KeyLeft_
+    // Keyboard behavior that have no corresponding gamepad mapping (e.g. CTRL+TAB) will be directly reading from keyboard keys instead of io.NavInputs[].
+    ImGuiNavInput_KeyLeft_,      // Move left                                    // = Arrow keys
+    ImGuiNavInput_KeyRight_,     // Move right
+    ImGuiNavInput_KeyUp_,        // Move up
+    ImGuiNavInput_KeyDown_,      // Move down
+    ImGuiNavInput_COUNT
 };
 
 // Configuration flags stored in io.ConfigFlags. Set by user/application.
 enum ImGuiConfigFlags_
 {
     ImGuiConfigFlags_None                   = 0,
-    ImGuiConfigFlags_NavEnableKeyboard      = 1 << 0,   // Master keyboard navigation enable flag. NewFrame() will automatically fill io.NavInputs[] based on io.KeysDown[].
+    ImGuiConfigFlags_NavEnableKeyboard      = 1 << 0,   // Master keyboard navigation enable flag. NewFrame() will automatically fill io.NavInputs[] based on io.AddKeyEvent() calls
     ImGuiConfigFlags_NavEnableGamepad       = 1 << 1,   // Master gamepad navigation enable flag. This is mostly to instruct your imgui backend to fill io.NavInputs[]. Backend also needs to set ImGuiBackendFlags_HasGamepad.
     ImGuiConfigFlags_NavEnableSetMousePos   = 1 << 2,   // Instruct navigation to move the mouse cursor. May be useful on TV/console systems where moving a virtual mouse is awkward. Will update io.MousePos and set io.WantSetMousePos=true. If enabled you MUST honor io.WantSetMousePos requests in your backend, otherwise ImGui will react as if the mouse is jumping around back and forth.
     ImGuiConfigFlags_NavNoCaptureKeyboard   = 1 << 3,   // Instruct navigation to not set the io.WantCaptureKeyboard flag when io.NavActive is set.
     ImGuiConfigFlags_NoMouse                = 1 << 4,   // Instruct imgui to clear mouse position/buttons in NewFrame(). This allows ignoring the mouse information set by the backend.
     ImGuiConfigFlags_NoMouseCursorChange    = 1 << 5,   // Instruct backend to not alter mouse cursor shape and visibility. Use if the backend cursor changes are interfering with yours and you don't want to use SetMouseCursor() to change mouse cursor. You may want to honor requests from imgui by reading GetMouseCursor() yourself instead.
 
-    // User storage (to allow your backend/engine to communicate to code that may be shared between multiple projects. Those flags are not used by core Dear ImGui)
+    // User storage (to allow your backend/engine to communicate to code that may be shared between multiple projects. Those flags are NOT used by core Dear ImGui)
     ImGuiConfigFlags_IsSRGB                 = 1 << 20,  // Application is SRGB-aware.
     ImGuiConfigFlags_IsTouchScreen          = 1 << 21   // Application is using a touch screen instead of a mouse.
 };
@@ -1481,10 +1557,10 @@ enum ImGuiCol_
     ImGuiCol_Separator,
     ImGuiCol_SeparatorHovered,
     ImGuiCol_SeparatorActive,
-    ImGuiCol_ResizeGrip,
+    ImGuiCol_ResizeGrip,            // Resize grip in lower-right and lower-left corners of windows.
     ImGuiCol_ResizeGripHovered,
     ImGuiCol_ResizeGripActive,
-    ImGuiCol_Tab,
+    ImGuiCol_Tab,                   // TabItem in a TabBar
     ImGuiCol_TabHovered,
     ImGuiCol_TabActive,
     ImGuiCol_TabUnfocused,
@@ -1499,7 +1575,7 @@ enum ImGuiCol_
     ImGuiCol_TableRowBg,            // Table row background (even rows)
     ImGuiCol_TableRowBgAlt,         // Table row background (odd rows)
     ImGuiCol_TextSelectedBg,
-    ImGuiCol_DragDropTarget,
+    ImGuiCol_DragDropTarget,        // Rectangle highlighting a drop target
     ImGuiCol_NavHighlight,          // Gamepad/keyboard: current highlighted item
     ImGuiCol_NavWindowingHighlight, // Highlight window when using CTRL+TAB
     ImGuiCol_NavWindowingDimBg,     // Darken/colorize entire screen behind the CTRL+TAB window list, when active
@@ -1511,7 +1587,7 @@ enum ImGuiCol_
 // - The enum only refers to fields of ImGuiStyle which makes sense to be pushed/popped inside UI code.
 //   During initialization or between frames, feel free to just poke into ImGuiStyle directly.
 // - Tip: Use your programming IDE navigation facilities on the names in the _second column_ below to find the actual members and their description.
-//   In Visual Studio IDE: CTRL+comma ("Edit.NavigateTo") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+//   In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
 //   With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
 // - When changing this enum, you need to update the associated internal table GStyleVarInfo[] accordingly. This is where we link enum values to members offset/type.
 enum ImGuiStyleVar_
@@ -1599,9 +1675,7 @@ enum ImGuiColorEditFlags_
     ImGuiColorEditFlags_InputMask_      = ImGuiColorEditFlags_InputRGB | ImGuiColorEditFlags_InputHSV
 
     // Obsolete names (will be removed)
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    , ImGuiColorEditFlags_RGB = ImGuiColorEditFlags_DisplayRGB, ImGuiColorEditFlags_HSV = ImGuiColorEditFlags_DisplayHSV, ImGuiColorEditFlags_HEX = ImGuiColorEditFlags_DisplayHex  // [renamed in 1.69]
-#endif
+    // ImGuiColorEditFlags_RGB = ImGuiColorEditFlags_DisplayRGB, ImGuiColorEditFlags_HSV = ImGuiColorEditFlags_DisplayHSV, ImGuiColorEditFlags_HEX = ImGuiColorEditFlags_DisplayHex  // [renamed in 1.69]
 };
 
 // Flags for DragFloat(), DragInt(), SliderFloat(), SliderInt() etc.
@@ -1736,13 +1810,14 @@ struct ImVector
     inline void         resize(int new_size, const T& v)    { if (new_size > Capacity) reserve(_grow_capacity(new_size)); if (new_size > Size) for (int n = Size; n < new_size; n++) memcpy(&Data[n], &v, sizeof(v)); Size = new_size; }
     inline void         shrink(int new_size)                { IM_ASSERT(new_size <= Size); Size = new_size; } // Resize a vector to a smaller size, guaranteed not to cause a reallocation
     inline void         reserve(int new_capacity)           { if (new_capacity <= Capacity) return; T* new_data = (T*)IM_ALLOC((size_t)new_capacity * sizeof(T)); if (Data) { memcpy(new_data, Data, (size_t)Size * sizeof(T)); IM_FREE(Data); } Data = new_data; Capacity = new_capacity; }
+    inline void         reserve_discard(int new_capacity)   { if (new_capacity <= Capacity) return; if (Data) IM_FREE(Data); Data = (T*)IM_ALLOC((size_t)new_capacity * sizeof(T)); Capacity = new_capacity; }
 
     // NB: It is illegal to call push_back/push_front/insert with a reference pointing inside the ImVector data itself! e.g. v.push_back(v[10]) is forbidden.
     inline void         push_back(const T& v)               { if (Size == Capacity) reserve(_grow_capacity(Size + 1)); memcpy(&Data[Size], &v, sizeof(v)); Size++; }
     inline void         pop_back()                          { IM_ASSERT(Size > 0); Size--; }
     inline void         push_front(const T& v)              { if (Size == 0) push_back(v); else insert(Data, v); }
     inline T*           erase(const T* it)                  { IM_ASSERT(it >= Data && it < Data + Size); const ptrdiff_t off = it - Data; memmove(Data + off, Data + off + 1, ((size_t)Size - (size_t)off - 1) * sizeof(T)); Size--; return Data + off; }
-    inline T*           erase(const T* it, const T* it_last){ IM_ASSERT(it >= Data && it < Data + Size && it_last > it && it_last <= Data + Size); const ptrdiff_t count = it_last - it; const ptrdiff_t off = it - Data; memmove(Data + off, Data + off + count, ((size_t)Size - (size_t)off - (size_t)count) * sizeof(T)); Size -= (int)count; return Data + off; }
+    inline T*           erase(const T* it, const T* it_last){ IM_ASSERT(it >= Data && it < Data + Size && it_last >= it && it_last <= Data + Size); const ptrdiff_t count = it_last - it; const ptrdiff_t off = it - Data; memmove(Data + off, Data + off + count, ((size_t)Size - (size_t)off - (size_t)count) * sizeof(T)); Size -= (int)count; return Data + off; }
     inline T*           erase_unsorted(const T* it)         { IM_ASSERT(it >= Data && it < Data + Size);  const ptrdiff_t off = it - Data; if (it < Data + Size - 1) memcpy(Data + off, Data + Size - 1, sizeof(T)); Size--; return Data + off; }
     inline T*           insert(const T* it, const T& v)     { IM_ASSERT(it >= Data && it <= Data + Size); const ptrdiff_t off = it - Data; if (Size == Capacity) reserve(_grow_capacity(Size + 1)); if (off < (int)Size) memmove(Data + off + 1, Data + off, ((size_t)Size - (size_t)off) * sizeof(T)); memcpy(&Data[off], &v, sizeof(v)); Size++; return Data + off; }
     inline bool         contains(const T& v) const          { const T* data = Data;  const T* data_end = Data + Size; while (data < data_end) if (*data++ == v) return true; return false; }
@@ -1800,7 +1875,7 @@ struct ImGuiStyle
     ImVec2      DisplaySafeAreaPadding;     // If you cannot see the edges of your screen (e.g. on a TV) increase the safe area padding. Apply to popups/tooltips as well regular windows. NB: Prefer configuring your TV sets correctly!
     float       MouseCursorScale;           // Scale software rendered mouse cursor (when io.MouseDrawCursor is enabled). May be removed later.
     bool        AntiAliasedLines;           // Enable anti-aliased lines/borders. Disable if you are really tight on CPU/GPU. Latched at the beginning of the frame (copied to ImDrawList).
-    bool        AntiAliasedLinesUseTex;     // Enable anti-aliased lines/borders using textures where possible. Require backend to render with bilinear filtering. Latched at the beginning of the frame (copied to ImDrawList).
+    bool        AntiAliasedLinesUseTex;     // Enable anti-aliased lines/borders using textures where possible. Require backend to render with bilinear filtering (NOT point/nearest filtering). Latched at the beginning of the frame (copied to ImDrawList).
     bool        AntiAliasedFill;            // Enable anti-aliased edges around filled shapes (rounded rectangles, circles, etc.). Disable if you are really tight on CPU/GPU. Latched at the beginning of the frame (copied to ImDrawList).
     float       CurveTessellationTol;       // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
     float       CircleTessellationMaxError; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
@@ -1817,23 +1892,32 @@ struct ImGuiStyle
 // Access via ImGui::GetIO(). Read 'Programmer guide' section in .cpp file for general usage.
 //-----------------------------------------------------------------------------
 
+// [Internal] Storage used by IsKeyDown(), IsKeyPressed() etc functions.
+// If prior to 1.87 you used io.KeysDownDuration[] (which was marked as internal), you should use GetKeyData(key)->DownDuration and not io.KeysData[key]->DownDuration.
+struct ImGuiKeyData
+{
+    bool        Down;               // True for if key is down
+    float       DownDuration;       // Duration the key has been down (<0.0f: not pressed, 0.0f: just pressed, >0.0f: time held)
+    float       DownDurationPrev;   // Last frame duration the key has been down
+    float       AnalogValue;        // 0.0f..1.0f for gamepad values
+};
+
 struct ImGuiIO
 {
     //------------------------------------------------------------------
-    // Configuration (fill once)                // Default value
+    // Configuration                            // Default value
     //------------------------------------------------------------------
 
     ImGuiConfigFlags   ConfigFlags;             // = 0              // See ImGuiConfigFlags_ enum. Set by user/application. Gamepad/keyboard navigation options, etc.
     ImGuiBackendFlags  BackendFlags;            // = 0              // See ImGuiBackendFlags_ enum. Set by backend (imgui_impl_xxx files or custom backend) to communicate features supported by the backend.
-    ImVec2      DisplaySize;                    // <unset>          // Main display size, in pixels (generally == GetMainViewport()->Size)
-    float       DeltaTime;                      // = 1.0f/60.0f     // Time elapsed since last frame, in seconds.
+    ImVec2      DisplaySize;                    // <unset>          // Main display size, in pixels (generally == GetMainViewport()->Size). May change every frame.
+    float       DeltaTime;                      // = 1.0f/60.0f     // Time elapsed since last frame, in seconds. May change every frame.
     float       IniSavingRate;                  // = 5.0f           // Minimum time between saving positions/sizes to .ini file, in seconds.
     const char* IniFilename;                    // = "imgui.ini"    // Path to .ini file (important: default "imgui.ini" is relative to current working dir!). Set NULL to disable automatic .ini loading/saving or if you want to manually call LoadIniSettingsXXX() / SaveIniSettingsXXX() functions.
     const char* LogFilename;                    // = "imgui_log.txt"// Path to .log file (default parameter to ImGui::LogToFile when no file is specified).
     float       MouseDoubleClickTime;           // = 0.30f          // Time for a double-click, in seconds.
     float       MouseDoubleClickMaxDist;        // = 6.0f           // Distance threshold to stay in to validate a double-click, in pixels.
     float       MouseDragThreshold;             // = 6.0f           // Distance threshold before considering we are dragging.
-    int         KeyMap[ImGuiKey_COUNT];         // <unset>          // Map of indices into the KeysDown[512] entries array which represent your "native" keyboard state.
     float       KeyRepeatDelay;                 // = 0.250f         // When holding a key/button, time before it starts repeating, in seconds (for buttons in Repeat mode, etc.).
     float       KeyRepeatRate;                  // = 0.050f         // When holding a key/button, rate at which it repeats, in seconds.
     void*       UserData;                       // = NULL           // Store your own data for retrieval by callbacks.
@@ -1847,6 +1931,7 @@ struct ImGuiIO
     // Miscellaneous options
     bool        MouseDrawCursor;                // = false          // Request ImGui to draw a mouse cursor for you (if you are on a platform without a mouse cursor). Cannot be easily renamed to 'io.ConfigXXX' because this is frequently used by backend implementations.
     bool        ConfigMacOSXBehaviors;          // = defined(__APPLE__) // OS X style: Text editing cursor movement using Alt instead of Ctrl, Shortcuts using Cmd/Super instead of Ctrl, Line/Text Start and End using Cmd+Arrows instead of Home/End, Double click selects by word instead of selecting whole text, Multi-selection in lists uses Cmd/Super instead of Ctrl.
+    bool        ConfigInputTrickleEventQueue;   // = true           // Enable input queue trickling: some types of events submitted during the same frame (e.g. button down + up) will be spread over multiple frames, improving interactions with low framerates.
     bool        ConfigInputTextCursorBlink;     // = true           // Enable blinking cursor (optional as some users consider it to be distracting).
     bool        ConfigDragClickToInputText;     // = false          // [BETA] Enable turning DragXXX widgets into text input with a simple mouse click-release (without moving). Not desirable on devices without a keyboard.
     bool        ConfigWindowsResizeFromEdges;   // = true           // Enable resizing of windows from their edges and from the lower-left corner. This requires (io.BackendFlags & ImGuiBackendFlags_HasMouseCursors) because it needs mouse cursor feedback. (This used to be a per-window ImGuiWindowFlags_ResizeFromAnySide flag)
@@ -1873,29 +1958,30 @@ struct ImGuiIO
 
     // Optional: Notify OS Input Method Editor of the screen position of your cursor for text input position (e.g. when using Japanese/Chinese IME on Windows)
     // (default to use native imm32 api on Windows)
-    void        (*ImeSetInputScreenPosFn)(int x, int y);
-    void*       ImeWindowHandle;                // = NULL           // (Windows) Set this to your HWND to get automatic IME cursor positioning.
+    void        (*SetPlatformImeDataFn)(ImGuiViewport* viewport, ImGuiPlatformImeData* data);
+#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
+    void*       ImeWindowHandle;                // = NULL           // [Obsolete] Set ImGuiViewport::PlatformHandleRaw instead. Set this to your HWND to get automatic IME cursor positioning.
+#else
+    void*       _UnusedPadding;                                     // Unused field to keep data structure the same size.
+#endif
 
     //------------------------------------------------------------------
-    // Input - Fill before calling NewFrame()
+    // Input - Call before calling NewFrame()
     //------------------------------------------------------------------
 
-    ImVec2      MousePos;                       // Mouse position, in pixels. Set to ImVec2(-FLT_MAX, -FLT_MAX) if mouse is unavailable (on another screen, etc.)
-    bool        MouseDown[5];                   // Mouse buttons: 0=left, 1=right, 2=middle + extras (ImGuiMouseButton_COUNT == 5). Dear ImGui mostly uses left and right buttons. Others buttons allows us to track if the mouse is being used by your application + available to user as a convenience via IsMouse** API.
-    float       MouseWheel;                     // Mouse wheel Vertical: 1 unit scrolls about 5 lines text.
-    float       MouseWheelH;                    // Mouse wheel Horizontal. Most users don't have a mouse with an horizontal wheel, may not be filled by all backends.
-    bool        KeyCtrl;                        // Keyboard modifier pressed: Control
-    bool        KeyShift;                       // Keyboard modifier pressed: Shift
-    bool        KeyAlt;                         // Keyboard modifier pressed: Alt
-    bool        KeySuper;                       // Keyboard modifier pressed: Cmd/Super/Windows
-    bool        KeysDown[512];                  // Keyboard keys that are pressed (ideally left in the "native" order your engine has access to keyboard keys, so you can use your own defines/enums for keys).
-    float       NavInputs[ImGuiNavInput_COUNT]; // Gamepad inputs. Cleared back to zero by EndFrame(). Keyboard keys will be auto-mapped and be written here by NewFrame().
+    // Input Functions
+    IMGUI_API void  AddKeyEvent(ImGuiKey key, bool down);                   // Queue a new key down/up event. Key should be "translated" (as in, generally ImGuiKey_A matches the key end-user would use to emit an 'A' character)
+    IMGUI_API void  AddKeyAnalogEvent(ImGuiKey key, bool down, float v);    // Queue a new key down/up event for analog values (e.g. ImGuiKey_Gamepad_ values). Dead-zones should be handled by the backend.
+    IMGUI_API void  AddMousePosEvent(float x, float y);                     // Queue a mouse position update. Use -FLT_MAX,-FLT_MAX to signify no mouse (e.g. app not focused and not hovered)
+    IMGUI_API void  AddMouseButtonEvent(int button, bool down);             // Queue a mouse button change
+    IMGUI_API void  AddMouseWheelEvent(float wh_x, float wh_y);             // Queue a mouse wheel update
+    IMGUI_API void  AddFocusEvent(bool focused);                            // Queue a gain/loss of focus for the application (generally based on OS/platform focus of your window)
+    IMGUI_API void  AddInputCharacter(unsigned int c);                      // Queue a new character input
+    IMGUI_API void  AddInputCharacterUTF16(ImWchar16 c);                    // Queue a new character input from an UTF-16 character, it can be a surrogate
+    IMGUI_API void  AddInputCharactersUTF8(const char* str);                // Queue a new characters input from an UTF-8 string
 
-    // Functions
-    IMGUI_API void  AddInputCharacter(unsigned int c);          // Queue new character input
-    IMGUI_API void  AddInputCharacterUTF16(ImWchar16 c);        // Queue new character input from an UTF-16 character, it can be a surrogate
-    IMGUI_API void  AddInputCharactersUTF8(const char* str);    // Queue new characters input from an UTF-8 string
-    IMGUI_API void  AddFocusEvent(bool focused);                // Notifies Dear ImGui when hosting platform windows lose or gain input focus
+    IMGUI_API void  SetKeyEventNativeData(ImGuiKey key, int native_keycode, int native_scancode, int native_legacy_index = -1); // [Optional] Specify index for legacy <1.87 IsKeyXXX() functions with native indices + specify native keycode, scancode.
+    IMGUI_API void  SetAppAcceptingEvents(bool accepting_events);           // Set master flag for accepting key/mouse/text events (default to true). Useful if you have native dialog boxes that are interrupting your application loop/refresh, and you want to disable events being queued while your app is frozen.
     IMGUI_API void  ClearInputCharacters();                                 // [Internal] Clear the text input buffer manually
     IMGUI_API void  ClearInputKeys();                                       // [Internal] Release all keys
 
@@ -1920,13 +2006,34 @@ struct ImGuiIO
     int         MetricsActiveAllocations;           // Number of active allocations, updated by MemAlloc/MemFree based on current context. May be off if you have multiple imgui contexts.
     ImVec2      MouseDelta;                         // Mouse delta. Note that this is zero if either current or previous position are invalid (-FLT_MAX,-FLT_MAX), so a disappearing/reappearing mouse won't have a huge delta.
 
+    // Legacy: before 1.87, we required backend to fill io.KeyMap[] (imgui->native map) during initialization and io.KeysDown[] (native indices) every frame.
+    // This is still temporarily supported as a legacy feature. However the new preferred scheme is for backend to call io.AddKeyEvent().
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    int         KeyMap[ImGuiKey_COUNT];             // [LEGACY] Input: map of indices into the KeysDown[512] entries array which represent your "native" keyboard state. The first 512 are now unused and should be kept zero. Legacy backend will write into KeyMap[] using ImGuiKey_ indices which are always >512.
+    bool        KeysDown[ImGuiKey_COUNT];           // [LEGACY] Input: Keyboard keys that are pressed (ideally left in the "native" order your engine has access to keyboard keys, so you can use your own defines/enums for keys). This used to be [512] sized. It is now ImGuiKey_COUNT to allow legacy io.KeysDown[GetKeyIndex(...)] to work without an overflow.
+#endif
+
     //------------------------------------------------------------------
     // [Internal] Dear ImGui will maintain those fields. Forward compatibility not guaranteed!
     //------------------------------------------------------------------
 
+    // Main Input State
+    // (this block used to be written by backend, since 1.87 it is best to NOT write to those directly, call the AddXXX functions above instead)
+    // (reading from those variables is fair game, as they are extremely unlikely to be moving anywhere)
+    ImVec2      MousePos;                           // Mouse position, in pixels. Set to ImVec2(-FLT_MAX, -FLT_MAX) if mouse is unavailable (on another screen, etc.)
+    bool        MouseDown[5];                       // Mouse buttons: 0=left, 1=right, 2=middle + extras (ImGuiMouseButton_COUNT == 5). Dear ImGui mostly uses left and right buttons. Others buttons allows us to track if the mouse is being used by your application + available to user as a convenience via IsMouse** API.
+    float       MouseWheel;                         // Mouse wheel Vertical: 1 unit scrolls about 5 lines text.
+    float       MouseWheelH;                        // Mouse wheel Horizontal. Most users don't have a mouse with an horizontal wheel, may not be filled by all backends.
+    bool        KeyCtrl;                            // Keyboard modifier down: Control
+    bool        KeyShift;                           // Keyboard modifier down: Shift
+    bool        KeyAlt;                             // Keyboard modifier down: Alt
+    bool        KeySuper;                           // Keyboard modifier down: Cmd/Super/Windows
+    float       NavInputs[ImGuiNavInput_COUNT];     // Gamepad inputs. Cleared back to zero by EndFrame(). Keyboard keys will be auto-mapped and be written here by NewFrame().
+
+    // Other state maintained from data above + IO function calls
+    ImGuiModFlags KeyMods;                          // Key mods flags (same as io.KeyCtrl/KeyShift/KeyAlt/KeySuper but merged into flags), updated by NewFrame()
+    ImGuiKeyData KeysData[ImGuiKey_KeysData_SIZE];  // Key state for all known keys. Use IsKeyXXX() functions to access this.
     bool        WantCaptureMouseUnlessPopupClose;   // Alternative to WantCaptureMouse: (WantCaptureMouse == true && WantCaptureMouseUnlessPopupClose == false) when a click over void is expected to close a popup.
-    ImGuiKeyModFlags KeyMods;                   // Key mods flags (same as io.KeyCtrl/KeyShift/KeyAlt/KeySuper but merged into flags), updated by NewFrame()
-    ImGuiKeyModFlags KeyModsPrev;               // Previous key mods
     ImVec2      MousePosPrev;                       // Previous mouse position (note that MouseDelta is not necessary == MousePos-MousePosPrev, in case either position is invalid)
     ImVec2      MouseClickedPos[5];                 // Position at time of clicking
     double      MouseClickedTime[5];                // Time of last click (used to figure out double-click)
@@ -1939,15 +2046,15 @@ struct ImGuiIO
     bool        MouseDownOwnedUnlessPopupClose[5];  // Track if button was clicked inside a dear imgui window.
     float       MouseDownDuration[5];               // Duration the mouse button has been down (0.0f == just clicked)
     float       MouseDownDurationPrev[5];           // Previous time the mouse button has been down
-    ImVec2      MouseDragMaxDistanceAbs[5];     // Maximum distance, absolute, on each axis, of how much mouse has traveled from the clicking point
-    float       MouseDragMaxDistanceSqr[5];     // Squared maximum distance of how much mouse has traveled from the clicking point
-    float       KeysDownDuration[512];          // Duration the keyboard key has been down (0.0f == just pressed)
-    float       KeysDownDurationPrev[512];      // Previous duration the key has been down
+    float       MouseDragMaxDistanceSqr[5];         // Squared maximum distance of how much mouse has traveled from the clicking point (used for moving thresholds)
     float       NavInputsDownDuration[ImGuiNavInput_COUNT];
     float       NavInputsDownDurationPrev[ImGuiNavInput_COUNT];
     float       PenPressure;                        // Touch/Pen pressure (0.0f to 1.0f, should be >0.0f only when MouseDown[0] == true). Helper storage currently unused by Dear ImGui.
-    bool        AppFocusLost;
-    ImWchar16   InputQueueSurrogate;            // For AddInputCharacterUTF16
+    bool        AppFocusLost;                       // Only modify via AddFocusEvent()
+    bool        AppAcceptingEvents;                 // Only modify via SetAppAcceptingEvents()
+    ImS8        BackendUsingLegacyKeyArrays;        // -1: unknown, 0: using AddKeyEvent(), 1: using legacy io.KeysDown[]
+    bool        BackendUsingLegacyNavInputArray;    // 0: using AddKeyAnalogEvent(), 1: writing to legacy io.NavInputs[] directly
+    ImWchar16   InputQueueSurrogate;                // For AddInputCharacterUTF16()
     ImVector<ImWchar> InputQueueCharacters;         // Queue of _characters_ input (obtained by platform backend). Fill using AddInputCharacter() helper.
 
     IMGUI_API   ImGuiIO();
@@ -2216,6 +2323,8 @@ struct ImGuiListClipper
 };
 
 // Helpers macros to generate 32-bit encoded colors
+// User can declare their own format by #defining the 5 _SHIFT/_MASK macros in their imconfig file.
+#ifndef IM_COL32_R_SHIFT
 #ifdef IMGUI_USE_BGRA_PACKED_COLOR
 #define IM_COL32_R_SHIFT    16
 #define IM_COL32_G_SHIFT    8
@@ -2229,6 +2338,7 @@ struct ImGuiListClipper
 #define IM_COL32_A_SHIFT    24
 #define IM_COL32_A_MASK     0xFF000000
 #endif
+#endif
 #define IM_COL32(R,G,B,A)    (((ImU32)(A)<<IM_COL32_A_SHIFT) | ((ImU32)(B)<<IM_COL32_B_SHIFT) | ((ImU32)(G)<<IM_COL32_G_SHIFT) | ((ImU32)(R)<<IM_COL32_R_SHIFT))
 #define IM_COL32_WHITE       IM_COL32(255,255,255,255)  // Opaque white = 0xFFFFFFFF
 #define IM_COL32_BLACK       IM_COL32(0,0,0,255)        // Opaque black
@@ -2242,11 +2352,11 @@ struct ImColor
 {
     ImVec4          Value;
 
-    ImColor()                                                       { Value.x = Value.y = Value.z = Value.w = 0.0f; }
+    constexpr ImColor()                                             { }
+    constexpr ImColor(float r, float g, float b, float a = 1.0f)    : Value(r, g, b, a) { }
+    constexpr ImColor(const ImVec4& col)                            : Value(col) {}
     ImColor(int r, int g, int b, int a = 255)                       { float sc = 1.0f / 255.0f; Value.x = (float)r * sc; Value.y = (float)g * sc; Value.z = (float)b * sc; Value.w = (float)a * sc; }
     ImColor(ImU32 rgba)                                             { float sc = 1.0f / 255.0f; Value.x = (float)((rgba >> IM_COL32_R_SHIFT) & 0xFF) * sc; Value.y = (float)((rgba >> IM_COL32_G_SHIFT) & 0xFF) * sc; Value.z = (float)((rgba >> IM_COL32_B_SHIFT) & 0xFF) * sc; Value.w = (float)((rgba >> IM_COL32_A_SHIFT) & 0xFF) * sc; }
-    ImColor(float r, float g, float b, float a = 1.0f)              { Value.x = r; Value.y = g; Value.z = b; Value.w = a; }
-    ImColor(const ImVec4& col)                                      { Value = col; }
     inline operator ImU32() const                                   { return ImGui::ColorConvertFloat4ToU32(Value); }
     inline operator ImVec4() const                                  { return Value; }
 
@@ -2283,16 +2393,16 @@ typedef void (*ImDrawCallback)(const ImDrawList* parent_list, const ImDrawCmd* c
 #define ImDrawCallback_ResetRenderState     (ImDrawCallback)(-1)
 
 // Typically, 1 command = 1 GPU draw call (unless command is a callback)
-// - VtxOffset/IdxOffset: When 'io.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset' is enabled,
-//   those fields allow us to render meshes larger than 64K vertices while keeping 16-bit indices.
-//   Pre-1.71 backends will typically ignore the VtxOffset/IdxOffset fields.
+// - VtxOffset: When 'io.BackendFlags & ImGuiBackendFlags_RendererHasVtxOffset' is enabled,
+//   this fields allow us to render meshes larger than 64K vertices while keeping 16-bit indices.
+//   Backends made for <1.71. will typically ignore the VtxOffset fields.
 // - The ClipRect/TextureId/VtxOffset fields must be contiguous as we memcmp() them together (this is asserted for).
 struct ImDrawCmd
 {
     ImVec4          ClipRect;           // 4*4  // Clipping rectangle (x1, y1, x2, y2). Subtract ImDrawData->DisplayPos to get clipping rectangle in "viewport" coordinates
     ImTextureID     TextureId;          // 4-8  // User-provided texture ID. Set by user in ImfontAtlas::SetTexID() for fonts or passed to Image*() functions. Ignore if never using images or multiple fonts atlas.
     unsigned int    VtxOffset;          // 4    // Start offset in vertex buffer. ImGuiBackendFlags_RendererHasVtxOffset: always 0, otherwise may be >0 to support meshes larger than 64K vertices with 16-bit indices.
-    unsigned int    IdxOffset;          // 4    // Start offset in index buffer. Always equal to sum of ElemCount drawn so far.
+    unsigned int    IdxOffset;          // 4    // Start offset in index buffer.
     unsigned int    ElemCount;          // 4    // Number of indices (multiple of 3) to be rendered as triangles. Vertices are stored in the callee ImDrawList's vtx_buffer[] array, indices in idx_buffer[].
     ImDrawCallback  UserCallback;       // 4-8  // If != NULL, call the function instead of rendering the vertices. clip_rect and texture_id will be set normally.
     void*           UserCallbackData;   // 4-8  // The draw callback code can access this.
@@ -2378,7 +2488,7 @@ enum ImDrawListFlags_
 {
     ImDrawListFlags_None                    = 0,
     ImDrawListFlags_AntiAliasedLines        = 1 << 0,  // Enable anti-aliased lines/borders (*2 the number of triangles for 1.0f wide line or lines thin enough to be drawn using textures, otherwise *3 the number of triangles)
-    ImDrawListFlags_AntiAliasedLinesUseTex  = 1 << 1,  // Enable anti-aliased lines/borders using textures when possible. Require backend to render with bilinear filtering.
+    ImDrawListFlags_AntiAliasedLinesUseTex  = 1 << 1,  // Enable anti-aliased lines/borders using textures when possible. Require backend to render with bilinear filtering (NOT point/nearest filtering).
     ImDrawListFlags_AntiAliasedFill         = 1 << 2,  // Enable anti-aliased edge around filled shapes (rounded rectangles, circles).
     ImDrawListFlags_AllowVtxOffset          = 1 << 3   // Can emit 'VtxOffset > 0' to allow large meshes. Set when 'ImGuiBackendFlags_RendererHasVtxOffset' is enabled.
 };
@@ -2417,7 +2527,7 @@ struct ImDrawList
     ImDrawList(const ImDrawListSharedData* shared_data) { memset(this, 0, sizeof(*this)); _Data = shared_data; }
 
     ~ImDrawList() { _ClearFreeMemory(); }
-    IMGUI_API void  PushClipRect(ImVec2 clip_rect_min, ImVec2 clip_rect_max, bool intersect_with_current_clip_rect = false);  // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
+    IMGUI_API void  PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect = false);  // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
     IMGUI_API void  PushClipRectFullScreen();
     IMGUI_API void  PopClipRect();
     IMGUI_API void  PushTextureID(ImTextureID texture_id);
@@ -2426,6 +2536,7 @@ struct ImDrawList
     inline ImVec2   GetClipRectMax() const { const ImVec4& cr = _ClipRectStack.back(); return ImVec2(cr.z, cr.w); }
 
     // Primitives
+    // - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
     // - For rectangular primitives, "p_min" and "p_max" represent the upper-left and lower-right corners.
     // - For circle primitives, use "num_segments == 0" to automatically calculate tessellation (preferred).
     //   In older versions (until Dear ImGui 1.77) the AddCircle functions defaulted to num_segments == 12.
@@ -2446,7 +2557,7 @@ struct ImDrawList
     IMGUI_API void  AddText(const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL);
     IMGUI_API void  AddText(const ImFont* font, float font_size, const ImVec2& pos, ImU32 col, const char* text_begin, const char* text_end = NULL, float wrap_width = 0.0f, const ImVec4* cpu_fine_clip_rect = NULL);
     IMGUI_API void  AddPolyline(const ImVec2* points, int num_points, ImU32 col, ImDrawFlags flags, float thickness);
-    IMGUI_API void  AddConvexPolyFilled(const ImVec2* points, int num_points, ImU32 col); // Note: Anti-aliased filling requires points to be in clockwise order.
+    IMGUI_API void  AddConvexPolyFilled(const ImVec2* points, int num_points, ImU32 col);
     IMGUI_API void  AddBezierCubic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments = 0); // Cubic Bezier (4 control points)
     IMGUI_API void  AddBezierQuadratic(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, ImU32 col, float thickness, int num_segments = 0);               // Quadratic Bezier (3 control points)
 
@@ -2459,10 +2570,11 @@ struct ImDrawList
     IMGUI_API void  AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_min, const ImVec2& p_max, const ImVec2& uv_min, const ImVec2& uv_max, ImU32 col, float rounding, ImDrawFlags flags = 0);
 
     // Stateful path API, add points then finish with PathFillConvex() or PathStroke()
+    // - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
     inline    void  PathClear()                                                 { _Path.Size = 0; }
     inline    void  PathLineTo(const ImVec2& pos)                               { _Path.push_back(pos); }
     inline    void  PathLineToMergeDuplicate(const ImVec2& pos)                 { if (_Path.Size == 0 || memcmp(&_Path.Data[_Path.Size - 1], &pos, 8) != 0) _Path.push_back(pos); }
-    inline    void  PathFillConvex(ImU32 col)                                   { AddConvexPolyFilled(_Path.Data, _Path.Size, col); _Path.Size = 0; }  // Note: Anti-aliased filling requires points to be in clockwise order.
+    inline    void  PathFillConvex(ImU32 col)                                   { AddConvexPolyFilled(_Path.Data, _Path.Size, col); _Path.Size = 0; }
     inline    void  PathStroke(ImU32 col, ImDrawFlags flags = 0, float thickness = 1.0f) { AddPolyline(_Path.Data, _Path.Size, col, flags, thickness); _Path.Size = 0; }
     IMGUI_API void  PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments = 0);
     IMGUI_API void  PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12);                // Use precomputed angles for a 12 steps circle
@@ -2498,8 +2610,8 @@ struct ImDrawList
     inline    void  PrimVtx(const ImVec2& pos, const ImVec2& uv, ImU32 col)         { PrimWriteIdx((ImDrawIdx)_VtxCurrentIdx); PrimWriteVtx(pos, uv, col); } // Write vertex with unique index
 
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    inline    void  AddBezierCurve(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments = 0) { AddBezierCubic(p1, p2, p3, p4, col, thickness, num_segments); }
-    inline    void  PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments = 0) { PathBezierCubicCurveTo(p2, p3, p4, num_segments); }
+    inline    void  AddBezierCurve(const ImVec2& p1, const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, ImU32 col, float thickness, int num_segments = 0) { AddBezierCubic(p1, p2, p3, p4, col, thickness, num_segments); } // OBSOLETED in 1.80 (Jan 2021)
+    inline    void  PathBezierCurveTo(const ImVec2& p2, const ImVec2& p3, const ImVec2& p4, int num_segments = 0) { PathBezierCubicCurveTo(p2, p3, p4, num_segments); } // OBSOLETED in 1.80 (Jan 2021)
 #endif
 
     // [Internal helpers]
@@ -2614,7 +2726,7 @@ enum ImFontAtlasFlags_
     ImFontAtlasFlags_None               = 0,
     ImFontAtlasFlags_NoPowerOfTwoHeight = 1 << 0,   // Don't round the height to next power of two
     ImFontAtlasFlags_NoMouseCursors     = 1 << 1,   // Don't build software mouse cursors into the atlas (save a little texture memory)
-    ImFontAtlasFlags_NoBakedLines       = 1 << 2    // Don't build thick line textures into the atlas (save a little texture memory). The AntiAliasedLinesUseTex features uses them, otherwise they will be rendered using polygons (more expensive for CPU/GPU).
+    ImFontAtlasFlags_NoBakedLines       = 1 << 2    // Don't build thick line textures into the atlas (save a little texture memory, allow support for point/nearest filtering). The AntiAliasedLinesUseTex features uses them, otherwise they will be rendered using polygons (more expensive for CPU/GPU).
 };
 
 // Load and rasterize multiple TTF/OTF fonts into a same texture. The font atlas will build a single texture holding:
@@ -2702,7 +2814,7 @@ struct ImFontAtlas
     ImFontAtlasFlags            Flags;              // Build flags (see ImFontAtlasFlags_)
     ImTextureID                 TexID;              // User data to refer to the texture once it has been uploaded to user's graphic systems. It is passed back to you during rendering via the ImDrawCmd structure.
     int                         TexDesiredWidth;    // Texture width desired by user before Build(). Must be a power-of-two. If have many glyphs your graphics API have texture size restrictions you may want to increase texture width to decrease height.
-    int                         TexGlyphPadding;    // Padding between glyphs within texture in pixels. Defaults to 1. If your rendering method doesn't rely on bilinear filtering you may set this to 0.
+    int                         TexGlyphPadding;    // Padding between glyphs within texture in pixels. Defaults to 1. If your rendering method doesn't rely on bilinear filtering you may set this to 0 (will also need to set AntiAliasedLinesUseTex = false).
     bool                        Locked;             // Marked as Locked by ImGui::NewFrame() so attempt to modify the atlas will assert.
 
     // [Internal]
@@ -2728,10 +2840,9 @@ struct ImFontAtlas
     int                         PackIdMouseCursors; // Custom texture rectangle ID for white pixel and mouse cursors
     int                         PackIdLines;        // Custom texture rectangle ID for baked anti-aliased lines
 
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    typedef ImFontAtlasCustomRect    CustomRect;         // OBSOLETED in 1.72+
+    // [Obsolete]
+    //typedef ImFontAtlasCustomRect    CustomRect;         // OBSOLETED in 1.72+
     //typedef ImFontGlyphRangesBuilder GlyphRangesBuilder; // OBSOLETED in 1.67+
-#endif
 };
 
 // Font runtime data and rendering
@@ -2774,8 +2885,8 @@ struct ImFont
     // 'wrap_width' enable automatic word-wrapping across multiple lines to fit into given width. 0.0f to disable.
     IMGUI_API ImVec2            CalcTextSizeA(float size, float max_width, float wrap_width, const char* text_begin, const char* text_end = NULL, const char** remaining = NULL) const; // utf8
     IMGUI_API const char*       CalcWordWrapPositionA(float scale, const char* text, const char* text_end, float wrap_width) const;
-    IMGUI_API void              RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const;
-    IMGUI_API void              RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width = 0.0f, bool cpu_fine_clip = false) const;
+    IMGUI_API void              RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c) const;
+    IMGUI_API void              RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width = 0.0f, bool cpu_fine_clip = false) const;
 
     // [Internal] Don't use!
     IMGUI_API void              BuildLookupTable();
@@ -2815,6 +2926,9 @@ struct ImGuiViewport
     ImVec2              WorkPos;                // Work Area: Position of the viewport minus task bars, menus bars, status bars (>= Pos)
     ImVec2              WorkSize;               // Work Area: Size of the viewport minus task bars, menu bars, status bars (<= Size)
 
+    // Platform/Backend Dependent Data
+    void*               PlatformHandleRaw;      // void* to hold lower-level, platform-native window handle (under Win32 this is expected to be a HWND, unused for other platforms)
+
     ImGuiViewport()     { memset(this, 0, sizeof(*this)); }
 
     // Helpers
@@ -2822,15 +2936,41 @@ struct ImGuiViewport
     ImVec2              GetWorkCenter() const   { return ImVec2(WorkPos.x + WorkSize.x * 0.5f, WorkPos.y + WorkSize.y * 0.5f); }
 };
 
+//-----------------------------------------------------------------------------
+// [SECTION] Platform Dependent Interfaces
+//-----------------------------------------------------------------------------
+
+// (Optional) Support for IME (Input Method Editor) via the io.SetPlatformImeDataFn() function.
+struct ImGuiPlatformImeData
+{
+    bool    WantVisible;        // A widget wants the IME to be visible
+    ImVec2  InputPos;           // Position of the input cursor
+    float   InputLineHeight;    // Line height
+
+    ImGuiPlatformImeData() { memset(this, 0, sizeof(*this)); }
+};
+
 //-----------------------------------------------------------------------------
 // [SECTION] Obsolete functions and types
 // (Will be removed! Read 'API BREAKING CHANGES' section in imgui.cpp for details)
 // Please keep your copy of dear imgui up to date! Occasionally set '#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS' in imconfig.h to stay ahead.
 //-----------------------------------------------------------------------------
 
+namespace ImGui
+{
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    IMGUI_API int       GetKeyIndex(ImGuiKey key);  // map ImGuiKey_* values into legacy native key index. == io.KeyMap[key]
+#else
+    static inline int   GetKeyIndex(ImGuiKey key)   { IM_ASSERT(key >= ImGuiKey_NamedKey_BEGIN && key < ImGuiKey_NamedKey_END && "ImGuiKey and native_index was merged together and native_index is disabled by IMGUI_DISABLE_OBSOLETE_KEYIO. Please switch to ImGuiKey."); return key; }
+#endif
+}
+
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
 namespace ImGui
 {
+    // OBSOLETED in 1.88 (from May 2022)
+    static inline void  CaptureKeyboardFromApp(bool want_capture_keyboard = true)   { SetNextFrameWantCaptureKeyboard(want_capture_keyboard); } // Renamed as name was misleading + removed default value.
+    static inline void  CaptureMouseFromApp(bool want_capture_mouse = true)         { SetNextFrameWantCaptureMouse(want_capture_mouse); }       // Renamed as name was misleading + removed default value.
     // OBSOLETED in 1.86 (from November 2021)
     IMGUI_API void      CalcListClipping(int items_count, float items_height, int* out_items_display_start, int* out_items_display_end); // Calculate coarse clipping for large list of evenly sized items. Prefer using ImGuiListClipper.
     // OBSOLETED in 1.85 (from August 2021)
@@ -2858,14 +2998,11 @@ namespace ImGui
     static inline bool  SliderFloat4(const char* label, float v[4], float v_min, float v_max, const char* format, float power)              { return SliderScalarN(label, ImGuiDataType_Float, v, 4, &v_min, &v_max, format, power); }
     // OBSOLETED in 1.77 (from June 2020)
     static inline bool  BeginPopupContextWindow(const char* str_id, ImGuiMouseButton mb, bool over_items) { return BeginPopupContextWindow(str_id, mb | (over_items ? 0 : ImGuiPopupFlags_NoOpenOverItems)); }
-    // OBSOLETED in 1.72 (from April 2019)
-    static inline void  TreeAdvanceToLabelPos()             { SetCursorPosX(GetCursorPosX() + GetTreeNodeToLabelSpacing()); }
-    // OBSOLETED in 1.71 (from June 2019)
-    static inline void  SetNextTreeNodeOpen(bool open, ImGuiCond cond = 0) { SetNextItemOpen(open, cond); }
-    // OBSOLETED in 1.70 (from May 2019)
-    static inline float GetContentRegionAvailWidth()        { return GetContentRegionAvail().x; }
 
     // Some of the older obsolete names along with their replacement (commented out so they are not reported in IDE)
+    //static inline void  TreeAdvanceToLabelPos()               { SetCursorPosX(GetCursorPosX() + GetTreeNodeToLabelSpacing()); }   // OBSOLETED in 1.72 (from July 2019)
+    //static inline void  SetNextTreeNodeOpen(bool open, ImGuiCond cond = 0) { SetNextItemOpen(open, cond); }                       // OBSOLETED in 1.71 (from June 2019)
+    //static inline float GetContentRegionAvailWidth()          { return GetContentRegionAvail().x; }                               // OBSOLETED in 1.70 (from May 2019)
     //static inline ImDrawList* GetOverlayDrawList()            { return GetForegroundDrawList(); }                                 // OBSOLETED in 1.69 (from Mar 2019)
     //static inline void  SetScrollHere(float ratio = 0.5f)     { SetScrollHereY(ratio); }                                          // OBSOLETED in 1.66 (from Nov 2018)
     //static inline bool  IsItemDeactivatedAfterChange()        { return IsItemDeactivatedAfterEdit(); }                            // OBSOLETED in 1.63 (from Aug 2018)
@@ -2894,8 +3031,20 @@ enum ImDrawCornerFlags_
     ImDrawCornerFlags_Right     = ImDrawCornerFlags_TopRight | ImDrawCornerFlags_BotRight
 };
 
+// RENAMED ImGuiKeyModFlags -> ImGuiModFlags in 1.88 (from April 2022)
+typedef int ImGuiKeyModFlags;
+enum ImGuiKeyModFlags_ { ImGuiKeyModFlags_None = ImGuiModFlags_None, ImGuiKeyModFlags_Ctrl = ImGuiModFlags_Ctrl, ImGuiKeyModFlags_Shift = ImGuiModFlags_Shift, ImGuiKeyModFlags_Alt = ImGuiModFlags_Alt, ImGuiKeyModFlags_Super = ImGuiModFlags_Super };
+
 #endif // #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
 
+// RENAMED IMGUI_DISABLE_METRICS_WINDOW > IMGUI_DISABLE_DEBUG_TOOLS in 1.88 (from June 2022)
+#if defined(IMGUI_DISABLE_METRICS_WINDOW) && !defined(IMGUI_DISABLE_OBSOLETE_FUNCTIONS) && !defined(IMGUI_DISABLE_DEBUG_TOOLS)
+#define IMGUI_DISABLE_DEBUG_TOOLS
+#endif
+#if defined(IMGUI_DISABLE_METRICS_WINDOW) && defined(IMGUI_DISABLE_OBSOLETE_FUNCTIONS)
+#error IMGUI_DISABLE_METRICS_WINDOW was renamed to IMGUI_DISABLE_DEBUG_TOOLS, please use new name.
+#endif
+
 //-----------------------------------------------------------------------------
 
 #if defined(__clang__)

UberEngine/vendor/ImGui/imgui_demo.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.86
+// dear imgui, v1.88
 // (demo code)
 
 // Help:
@@ -39,7 +39,7 @@
 //   Because we can't assume anything about your support of maths operators, we cannot use them in imgui_demo.cpp.
 
 // Navigating this file:
-// - In Visual Studio IDE: CTRL+comma ("Edit.NavigateTo") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+// - In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
 // - With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
 
 /*
@@ -92,6 +92,7 @@ Index of this file:
 
 // Visual Studio warnings
 #ifdef _MSC_VER
+#pragma warning (disable: 4127)     // condition expression is constant
 #pragma warning (disable: 4996)     // 'This function or variable may be unsafe': strcpy, strdup, sprintf, vsnprintf, sscanf, fopen
 #pragma warning (disable: 26451)    // [Static Analyzer] Arithmetic overflow : Using operator 'xxx' on a 4 byte value and then casting the result to a 8 byte value. Cast the value to the wider type before calling operator 'xxx' to avoid overflow(io.2).
 #endif
@@ -228,7 +229,6 @@ void ImGui::ShowUserGuide()
     ImGui::BulletText("CTRL+X/C/V to use clipboard cut/copy/paste.");
     ImGui::BulletText("CTRL+Z,CTRL+Y to undo/redo.");
     ImGui::BulletText("ESCAPE to revert.");
-    ImGui::BulletText("You can apply arithmetic operators +,*,/ on numerical values.\nUse +- to subtract.");
     ImGui::Unindent();
     ImGui::BulletText("With keyboard navigation enabled:");
     ImGui::Indent();
@@ -302,13 +302,19 @@ void ImGui::ShowDemoWindow(bool* p_open)
 
     // Dear ImGui Apps (accessible from the "Tools" menu)
     static bool show_app_metrics = false;
+    static bool show_app_debug_log = false;
     static bool show_app_stack_tool = false;
-    static bool show_app_style_editor = false;
     static bool show_app_about = false;
+    static bool show_app_style_editor = false;
 
-    if (show_app_metrics)       { ImGui::ShowMetricsWindow(&show_app_metrics); }
-    if (show_app_stack_tool)    { ImGui::ShowStackToolWindow(&show_app_stack_tool); }
-    if (show_app_about)         { ImGui::ShowAboutWindow(&show_app_about); }
+    if (show_app_metrics)
+        ImGui::ShowMetricsWindow(&show_app_metrics);
+    if (show_app_debug_log)
+        ImGui::ShowDebugLogWindow(&show_app_debug_log);
+    if (show_app_stack_tool)
+        ImGui::ShowStackToolWindow(&show_app_stack_tool);
+    if (show_app_about)
+        ImGui::ShowAboutWindow(&show_app_about);
     if (show_app_style_editor)
     {
         ImGui::Begin("Dear ImGui Style Editor", &show_app_style_editor);
@@ -395,10 +401,14 @@ void ImGui::ShowDemoWindow(bool* p_open)
         if (ImGui::BeginMenu("Tools"))
         {
             IMGUI_DEMO_MARKER("Menu/Tools");
-#ifndef IMGUI_DISABLE_METRICS_WINDOW
-            ImGui::MenuItem("Metrics/Debugger", NULL, &show_app_metrics);
-            ImGui::MenuItem("Stack Tool", NULL, &show_app_stack_tool);
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
+            const bool has_debug_tools = true;
+#else
+            const bool has_debug_tools = false;
 #endif
+            ImGui::MenuItem("Metrics/Debugger", NULL, &show_app_metrics, has_debug_tools);
+            ImGui::MenuItem("Debug Log", NULL, &show_app_debug_log, has_debug_tools);
+            ImGui::MenuItem("Stack Tool", NULL, &show_app_stack_tool, has_debug_tools);
             ImGui::MenuItem("Style Editor", NULL, &show_app_style_editor);
             ImGui::MenuItem("About Dear ImGui", NULL, &show_app_about);
             ImGui::EndMenu();
@@ -406,7 +416,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
         ImGui::EndMenuBar();
     }
 
-    ImGui::Text("dear imgui says hello. (%s)", IMGUI_VERSION);
+    ImGui::Text("dear imgui says hello! (%s) (%d)", IMGUI_VERSION, IMGUI_VERSION_NUM);
     ImGui::Spacing();
 
     IMGUI_DEMO_MARKER("Help");
@@ -454,13 +464,15 @@ void ImGui::ShowDemoWindow(bool* p_open)
                     ImGui::SameLine();
                     ImGui::Text("<<PRESS SPACE TO DISABLE>>");
                 }
-                if (ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_Space)))
+                if (ImGui::IsKeyPressed(ImGuiKey_Space))
                     io.ConfigFlags &= ~ImGuiConfigFlags_NoMouse;
             }
             ImGui::CheckboxFlags("io.ConfigFlags: NoMouseCursorChange", &io.ConfigFlags, ImGuiConfigFlags_NoMouseCursorChange);
             ImGui::SameLine(); HelpMarker("Instruct backend to not alter mouse cursor shape and visibility.");
+            ImGui::Checkbox("io.ConfigInputTrickleEventQueue", &io.ConfigInputTrickleEventQueue);
+            ImGui::SameLine(); HelpMarker("Enable input queue trickling: some types of events submitted during the same frame (e.g. button down + up) will be spread over multiple frames, improving interactions with low framerates.");
             ImGui::Checkbox("io.ConfigInputTextCursorBlink", &io.ConfigInputTextCursorBlink);
-            ImGui::SameLine(); HelpMarker("Enable blinking cursor (optional as some users consider it to be distracting)");
+            ImGui::SameLine(); HelpMarker("Enable blinking cursor (optional as some users consider it to be distracting).");
             ImGui::Checkbox("io.ConfigDragClickToInputText", &io.ConfigDragClickToInputText);
             ImGui::SameLine(); HelpMarker("Enable turning DragXXX widgets into text input with a simple mouse click-release (without moving).");
             ImGui::Checkbox("io.ConfigWindowsResizeFromEdges", &io.ConfigWindowsResizeFromEdges);
@@ -481,6 +493,7 @@ void ImGui::ShowDemoWindow(bool* p_open)
                 "Here we expose them as read-only fields to avoid breaking interactions with your backend.");
 
             // Make a local copy to avoid modifying actual backend flags.
+            // FIXME: We don't use BeginDisabled() to keep label bright, maybe we need a BeginReadonly() equivalent..
             ImGuiBackendFlags backend_flags = io.BackendFlags;
             ImGui::CheckboxFlags("io.BackendFlags: HasGamepad",           &backend_flags, ImGuiBackendFlags_HasGamepad);
             ImGui::CheckboxFlags("io.BackendFlags: HasMouseCursors",      &backend_flags, ImGuiBackendFlags_HasMouseCursors);
@@ -673,10 +686,6 @@ static void ShowDemoWindowWidgets()
             IMGUI_DEMO_MARKER("Widgets/Basic/InputInt, InputFloat");
             static int i0 = 123;
             ImGui::InputInt("input int", &i0);
-            ImGui::SameLine(); HelpMarker(
-                "You can apply arithmetic operators +,*,/ on numerical values.\n"
-                "  e.g. [ 100 ], input \'*2\', result becomes [ 200 ]\n"
-                "Use +- to subtract.");
 
             static float f0 = 0.001f;
             ImGui::InputFloat("input float", &f0, 0.01f, 1.0f, "%.3f");
@@ -1856,10 +1865,9 @@ static void ShowDemoWindowWidgets()
         ImGui::Combo("Display Mode", &display_mode, "Auto/Current\0None\0RGB Only\0HSV Only\0Hex Only\0");
         ImGui::SameLine(); HelpMarker(
             "ColorEdit defaults to displaying RGB inputs if you don't specify a display mode, "
-            "but the user can change it with a right-click.\n\nColorPicker defaults to displaying RGB+HSV+Hex "
+            "but the user can change it with a right-click on those inputs.\n\nColorPicker defaults to displaying RGB+HSV+Hex "
             "if you don't specify a display mode.\n\nYou can change the defaults using SetColorEditOptions().");
-        ImGui::Combo("Picker Mode", &picker_mode, "Auto/Current\0Hue bar + SV rect\0Hue wheel + SV triangle\0");
-        ImGui::SameLine(); HelpMarker("User can right-click the picker to change mode.");
+        ImGui::SameLine(); HelpMarker("When not specified explicitly (Auto/Current mode), user can right-click the picker to change mode.");
         ImGuiColorEditFlags flags = misc_flags;
         if (!alpha)            flags |= ImGuiColorEditFlags_NoAlpha;        // This is by default if you call ColorPicker3() instead of ColorPicker4()
         if (alpha_bar)         flags |= ImGuiColorEditFlags_AlphaBar;
@@ -1883,6 +1891,15 @@ static void ShowDemoWindowWidgets()
         if (ImGui::Button("Default: Float + HDR + Hue Wheel"))
             ImGui::SetColorEditOptions(ImGuiColorEditFlags_Float | ImGuiColorEditFlags_HDR | ImGuiColorEditFlags_PickerHueWheel);
 
+        // Always both a small version of both types of pickers (to make it more visible in the demo to people who are skimming quickly through it)
+        ImGui::Text("Both types:");
+        float w = (ImGui::GetContentRegionAvail().x - ImGui::GetStyle().ItemSpacing.y) * 0.40f;
+        ImGui::SetNextItemWidth(w);
+        ImGui::ColorPicker3("##MyColor##5", (float*)&color, ImGuiColorEditFlags_PickerHueBar | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoAlpha);
+        ImGui::SameLine();
+        ImGui::SetNextItemWidth(w);
+        ImGui::ColorPicker3("##MyColor##6", (float*)&color, ImGuiColorEditFlags_PickerHueWheel | ImGuiColorEditFlags_NoSidePreview | ImGuiColorEditFlags_NoInputs | ImGuiColorEditFlags_NoAlpha);
+
         // HSV encoded support (to avoid RGB<>HSV round trips and singularities when S==0 or V==0)
         static ImVec4 color_hsv(0.23f, 1.0f, 1.0f, 1.0f); // Stored as HSV!
         ImGui::Spacing();
@@ -2005,6 +2022,7 @@ static void ShowDemoWindowWidgets()
         ImGui::DragScalar("drag s16",       ImGuiDataType_S16,    &s16_v, drag_speed, drag_clamp ? &s16_zero : NULL, drag_clamp ? &s16_fifty : NULL);
         ImGui::DragScalar("drag u16",       ImGuiDataType_U16,    &u16_v, drag_speed, drag_clamp ? &u16_zero : NULL, drag_clamp ? &u16_fifty : NULL, "%u ms");
         ImGui::DragScalar("drag s32",       ImGuiDataType_S32,    &s32_v, drag_speed, drag_clamp ? &s32_zero : NULL, drag_clamp ? &s32_fifty : NULL);
+        ImGui::DragScalar("drag s32 hex",   ImGuiDataType_S32,    &s32_v, drag_speed, drag_clamp ? &s32_zero : NULL, drag_clamp ? &s32_fifty : NULL, "0x%08X");
         ImGui::DragScalar("drag u32",       ImGuiDataType_U32,    &u32_v, drag_speed, drag_clamp ? &u32_zero : NULL, drag_clamp ? &u32_fifty : NULL, "%u ms");
         ImGui::DragScalar("drag s64",       ImGuiDataType_S64,    &s64_v, drag_speed, drag_clamp ? &s64_zero : NULL, drag_clamp ? &s64_fifty : NULL);
         ImGui::DragScalar("drag u64",       ImGuiDataType_U64,    &u64_v, drag_speed, drag_clamp ? &u64_zero : NULL, drag_clamp ? &u64_fifty : NULL);
@@ -2022,6 +2040,7 @@ static void ShowDemoWindowWidgets()
         ImGui::SliderScalar("slider s32 low",       ImGuiDataType_S32,    &s32_v, &s32_zero, &s32_fifty,"%d");
         ImGui::SliderScalar("slider s32 high",      ImGuiDataType_S32,    &s32_v, &s32_hi_a, &s32_hi_b, "%d");
         ImGui::SliderScalar("slider s32 full",      ImGuiDataType_S32,    &s32_v, &s32_min,  &s32_max,  "%d");
+        ImGui::SliderScalar("slider s32 hex",       ImGuiDataType_S32,    &s32_v, &s32_zero, &s32_fifty, "0x%04X");
         ImGui::SliderScalar("slider u32 low",       ImGuiDataType_U32,    &u32_v, &u32_zero, &u32_fifty,"%u");
         ImGui::SliderScalar("slider u32 high",      ImGuiDataType_U32,    &u32_v, &u32_hi_a, &u32_hi_b, "%u");
         ImGui::SliderScalar("slider u32 full",      ImGuiDataType_U32,    &u32_v, &u32_min,  &u32_max,  "%u");
@@ -2055,9 +2074,9 @@ static void ShowDemoWindowWidgets()
         ImGui::InputScalar("input s16",     ImGuiDataType_S16,    &s16_v, inputs_step ? &s16_one : NULL, NULL, "%d");
         ImGui::InputScalar("input u16",     ImGuiDataType_U16,    &u16_v, inputs_step ? &u16_one : NULL, NULL, "%u");
         ImGui::InputScalar("input s32",     ImGuiDataType_S32,    &s32_v, inputs_step ? &s32_one : NULL, NULL, "%d");
-        ImGui::InputScalar("input s32 hex", ImGuiDataType_S32,    &s32_v, inputs_step ? &s32_one : NULL, NULL, "%08X", ImGuiInputTextFlags_CharsHexadecimal);
+        ImGui::InputScalar("input s32 hex", ImGuiDataType_S32,    &s32_v, inputs_step ? &s32_one : NULL, NULL, "%04X");
         ImGui::InputScalar("input u32",     ImGuiDataType_U32,    &u32_v, inputs_step ? &u32_one : NULL, NULL, "%u");
-        ImGui::InputScalar("input u32 hex", ImGuiDataType_U32,    &u32_v, inputs_step ? &u32_one : NULL, NULL, "%08X", ImGuiInputTextFlags_CharsHexadecimal);
+        ImGui::InputScalar("input u32 hex", ImGuiDataType_U32,    &u32_v, inputs_step ? &u32_one : NULL, NULL, "%08X");
         ImGui::InputScalar("input s64",     ImGuiDataType_S64,    &s64_v, inputs_step ? &s64_one : NULL);
         ImGui::InputScalar("input u64",     ImGuiDataType_U64,    &u64_v, inputs_step ? &u64_one : NULL);
         ImGui::InputScalar("input float",   ImGuiDataType_Float,  &f32_v, inputs_step ? &f32_one : NULL);
@@ -3193,59 +3212,58 @@ static void ShowDemoWindowLayout()
         ImGui::DragFloat2("size", (float*)&size, 0.5f, 1.0f, 200.0f, "%.0f");
         ImGui::TextWrapped("(Click and drag to scroll)");
 
+        HelpMarker(
+            "(Left) Using ImGui::PushClipRect():\n"
+            "Will alter ImGui hit-testing logic + ImDrawList rendering.\n"
+            "(use this if you want your clipping rectangle to affect interactions)\n\n"
+            "(Center) Using ImDrawList::PushClipRect():\n"
+            "Will alter ImDrawList rendering only.\n"
+            "(use this as a shortcut if you are only using ImDrawList calls)\n\n"
+            "(Right) Using ImDrawList::AddText() with a fine ClipRect:\n"
+            "Will alter only this specific ImDrawList::AddText() rendering.\n"
+            "This is often used internally to avoid altering the clipping rectangle and minimize draw calls.");
+
         for (int n = 0; n < 3; n++)
         {
             if (n > 0)
                 ImGui::SameLine();
-            ImGui::PushID(n);
-            ImGui::BeginGroup(); // Lock X position
 
-            ImGui::InvisibleButton("##empty", size);
+            ImGui::PushID(n);
+            ImGui::InvisibleButton("##canvas", size);
             if (ImGui::IsItemActive() && ImGui::IsMouseDragging(ImGuiMouseButton_Left))
             {
                 offset.x += ImGui::GetIO().MouseDelta.x;
                 offset.y += ImGui::GetIO().MouseDelta.y;
             }
+            ImGui::PopID();
+            if (!ImGui::IsItemVisible()) // Skip rendering as ImDrawList elements are not clipped.
+                continue;
+
             const ImVec2 p0 = ImGui::GetItemRectMin();
             const ImVec2 p1 = ImGui::GetItemRectMax();
             const char* text_str = "Line 1 hello\nLine 2 clip me!";
             const ImVec2 text_pos = ImVec2(p0.x + offset.x, p0.y + offset.y);
             ImDrawList* draw_list = ImGui::GetWindowDrawList();
-
             switch (n)
             {
             case 0:
-                HelpMarker(
-                    "Using ImGui::PushClipRect():\n"
-                    "Will alter ImGui hit-testing logic + ImDrawList rendering.\n"
-                    "(use this if you want your clipping rectangle to affect interactions)");
                 ImGui::PushClipRect(p0, p1, true);
                 draw_list->AddRectFilled(p0, p1, IM_COL32(90, 90, 120, 255));
                 draw_list->AddText(text_pos, IM_COL32_WHITE, text_str);
                 ImGui::PopClipRect();
                 break;
             case 1:
-                HelpMarker(
-                    "Using ImDrawList::PushClipRect():\n"
-                    "Will alter ImDrawList rendering only.\n"
-                    "(use this as a shortcut if you are only using ImDrawList calls)");
                 draw_list->PushClipRect(p0, p1, true);
                 draw_list->AddRectFilled(p0, p1, IM_COL32(90, 90, 120, 255));
                 draw_list->AddText(text_pos, IM_COL32_WHITE, text_str);
                 draw_list->PopClipRect();
                 break;
             case 2:
-                HelpMarker(
-                    "Using ImDrawList::AddText() with a fine ClipRect:\n"
-                    "Will alter only this specific ImDrawList::AddText() rendering.\n"
-                    "(this is often used internally to avoid altering the clipping rectangle and minimize draw calls)");
                 ImVec4 clip_rect(p0.x, p0.y, p1.x, p1.y); // AddText() takes a ImVec4* here so let's convert.
                 draw_list->AddRectFilled(p0, p1, IM_COL32(90, 90, 120, 255));
                 draw_list->AddText(ImGui::GetFont(), ImGui::GetFontSize(), text_pos, IM_COL32_WHITE, text_str, NULL, 0.0f, &clip_rect);
                 break;
             }
-            ImGui::EndGroup();
-            ImGui::PopID();
         }
 
         ImGui::TreePop();
@@ -3411,7 +3429,7 @@ static void ShowDemoWindowPopups()
         {
             HelpMarker("Text() elements don't have stable identifiers so we need to provide one.");
             static float value = 0.5f;
-            ImGui::Text("Value = %.3f <-- (1) right-click this value", value);
+            ImGui::Text("Value = %.3f <-- (1) right-click this text", value);
             if (ImGui::BeginPopupContextItem("my popup"))
             {
                 if (ImGui::Selectable("Set to zero")) value = 0.0f;
@@ -3538,19 +3556,12 @@ static void ShowDemoWindowPopups()
         ImGui::TextWrapped("Below we are testing adding menu items to a regular window. It's rather unusual but should work!");
         ImGui::Separator();
 
-        // Note: As a quirk in this very specific example, we want to differentiate the parent of this menu from the
-        // parent of the various popup menus above. To do so we are encloding the items in a PushID()/PopID() block
-        // to make them two different menusets. If we don't, opening any popup above and hovering our menu here would
-        // open it. This is because once a menu is active, we allow to switch to a sibling menu by just hovering on it,
-        // which is the desired behavior for regular menus.
-        ImGui::PushID("foo");
         ImGui::MenuItem("Menu item", "CTRL+M");
         if (ImGui::BeginMenu("Menu inside a regular window"))
         {
             ShowExampleMenuFile();
             ImGui::EndMenu();
         }
-        ImGui::PopID();
         ImGui::Separator();
         ImGui::TreePop();
     }
@@ -3874,7 +3885,7 @@ static void ShowDemoWindowTables()
                     sprintf(buf, "Hello %d,%d", column, row);
                     if (contents_type == CT_Text)
                         ImGui::TextUnformatted(buf);
-                    else if (contents_type)
+                    else if (contents_type == CT_FillButton)
                         ImGui::Button(buf, ImVec2(-FLT_MIN, 0.0f));
                 }
             }
@@ -4418,14 +4429,16 @@ static void ShowDemoWindowTables()
             {
                 ImGui::TableNextColumn();
                 ImGui::PushID(column);
-                ImGui::AlignTextToFramePadding(); // FIXME-TABLE: Workaround for wrong text baseline propagation
+                ImGui::AlignTextToFramePadding(); // FIXME-TABLE: Workaround for wrong text baseline propagation across columns
                 ImGui::Text("'%s'", column_names[column]);
                 ImGui::Spacing();
                 ImGui::Text("Input flags:");
                 EditTableColumnsFlags(&column_flags[column]);
                 ImGui::Spacing();
                 ImGui::Text("Output flags:");
+                ImGui::BeginDisabled();
                 ShowTableColumnsStatusFlags(column_flags_out[column]);
+                ImGui::EndDisabled();
                 ImGui::PopID();
             }
             PopStyleCompact();
@@ -4830,7 +4843,7 @@ static void ShowDemoWindowTables()
                 ImGui::TableSetColumnIndex(1);
                 ImGui::SliderFloat("float1", &dummy_f, 0.0f, 1.0f);
                 ImGui::TableSetColumnIndex(2);
-                ImGui::SliderFloat("float2", &dummy_f, 0.0f, 1.0f);
+                ImGui::SliderFloat("##float2", &dummy_f, 0.0f, 1.0f); // No visible label since right-aligned
                 ImGui::PopID();
             }
             ImGui::EndTable();
@@ -5639,6 +5652,8 @@ static void ShowDemoWindowColumns()
     ImGui::TreePop();
 }
 
+namespace ImGui { extern ImGuiKeyData* GetKeyData(ImGuiKey key); }
+
 static void ShowDemoWindowMisc()
 {
     IMGUI_DEMO_MARKER("Filtering");
@@ -5665,12 +5680,18 @@ static void ShowDemoWindowMisc()
         ImGuiIO& io = ImGui::GetIO();
 
         // Display ImGuiIO output flags
-        ImGui::Text("WantCaptureMouse: %d", io.WantCaptureMouse);
-        ImGui::Text("WantCaptureMouseUnlessPopupClose: %d", io.WantCaptureMouseUnlessPopupClose);
-        ImGui::Text("WantCaptureKeyboard: %d", io.WantCaptureKeyboard);
-        ImGui::Text("WantTextInput: %d", io.WantTextInput);
-        ImGui::Text("WantSetMousePos: %d", io.WantSetMousePos);
-        ImGui::Text("NavActive: %d, NavVisible: %d", io.NavActive, io.NavVisible);
+        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Output");
+        ImGui::SetNextItemOpen(true, ImGuiCond_Once);
+        if (ImGui::TreeNode("Output"))
+        {
+            ImGui::Text("io.WantCaptureMouse: %d", io.WantCaptureMouse);
+            ImGui::Text("io.WantCaptureMouseUnlessPopupClose: %d", io.WantCaptureMouseUnlessPopupClose);
+            ImGui::Text("io.WantCaptureKeyboard: %d", io.WantCaptureKeyboard);
+            ImGui::Text("io.WantTextInput: %d", io.WantTextInput);
+            ImGui::Text("io.WantSetMousePos: %d", io.WantSetMousePos);
+            ImGui::Text("io.NavActive: %d, io.NavVisible: %d", io.NavActive, io.NavVisible);
+            ImGui::TreePop();
+        }
 
         // Display Mouse state
         IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Mouse State");
@@ -5692,25 +5713,110 @@ static void ShowDemoWindowMisc()
         }
 
         // Display Keyboard/Mouse state
-        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Keyboard & Navigation State");
-        if (ImGui::TreeNode("Keyboard & Navigation State"))
+        IMGUI_DEMO_MARKER("Inputs, Navigation & Focus/Keyboard, Gamepad & Navigation State");
+        if (ImGui::TreeNode("Keyboard, Gamepad & Navigation State"))
         {
-            ImGui::Text("Keys down:");          for (int i = 0; i < IM_ARRAYSIZE(io.KeysDown); i++) if (ImGui::IsKeyDown(i))        { ImGui::SameLine(); ImGui::Text("%d (0x%X) (%.02f secs)", i, i, io.KeysDownDuration[i]); }
-            ImGui::Text("Keys pressed:");       for (int i = 0; i < IM_ARRAYSIZE(io.KeysDown); i++) if (ImGui::IsKeyPressed(i))     { ImGui::SameLine(); ImGui::Text("%d (0x%X)", i, i); }
-            ImGui::Text("Keys release:");       for (int i = 0; i < IM_ARRAYSIZE(io.KeysDown); i++) if (ImGui::IsKeyReleased(i))    { ImGui::SameLine(); ImGui::Text("%d (0x%X)", i, i); }
+            // We iterate both legacy native range and named ImGuiKey ranges, which is a little odd but this allow displaying the data for old/new backends.
+            // User code should never have to go through such hoops: old code may use native keycodes, new code may use ImGuiKey codes.
+#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
+            struct funcs { static bool IsLegacyNativeDupe(ImGuiKey) { return false; } };
+            const ImGuiKey key_first = ImGuiKey_NamedKey_BEGIN;
+#else
+            struct funcs { static bool IsLegacyNativeDupe(ImGuiKey key) { return key < 512 && ImGui::GetIO().KeyMap[key] != -1; } }; // Hide Native<>ImGuiKey duplicates when both exists in the array
+            const ImGuiKey key_first = 0;
+            //ImGui::Text("Legacy raw:");       for (ImGuiKey key = key_first; key < ImGuiKey_COUNT; key++) { if (io.KeysDown[key]) { ImGui::SameLine(); ImGui::Text("\"%s\" %d", ImGui::GetKeyName(key), key); } }
+#endif
+            ImGui::Text("Keys down:");          for (ImGuiKey key = key_first; key < ImGuiKey_COUNT; key++) { if (funcs::IsLegacyNativeDupe(key)) continue; if (ImGui::IsKeyDown(key)) { ImGui::SameLine(); ImGui::Text("\"%s\" %d (%.02f secs)", ImGui::GetKeyName(key), key, ImGui::GetKeyData(key)->DownDuration); } }
+            ImGui::Text("Keys pressed:");       for (ImGuiKey key = key_first; key < ImGuiKey_COUNT; key++) { if (funcs::IsLegacyNativeDupe(key)) continue; if (ImGui::IsKeyPressed(key)) { ImGui::SameLine(); ImGui::Text("\"%s\" %d", ImGui::GetKeyName(key), key); } }
+            ImGui::Text("Keys released:");      for (ImGuiKey key = key_first; key < ImGuiKey_COUNT; key++) { if (funcs::IsLegacyNativeDupe(key)) continue; if (ImGui::IsKeyReleased(key)) { ImGui::SameLine(); ImGui::Text("\"%s\" %d", ImGui::GetKeyName(key), key); } }
             ImGui::Text("Keys mods: %s%s%s%s", io.KeyCtrl ? "CTRL " : "", io.KeyShift ? "SHIFT " : "", io.KeyAlt ? "ALT " : "", io.KeySuper ? "SUPER " : "");
             ImGui::Text("Chars queue:");        for (int i = 0; i < io.InputQueueCharacters.Size; i++) { ImWchar c = io.InputQueueCharacters[i]; ImGui::SameLine();  ImGui::Text("\'%c\' (0x%04X)", (c > ' ' && c <= 255) ? (char)c : '?', c); } // FIXME: We should convert 'c' to UTF-8 here but the functions are not public.
-
             ImGui::Text("NavInputs down:");     for (int i = 0; i < IM_ARRAYSIZE(io.NavInputs); i++) if (io.NavInputs[i] > 0.0f)              { ImGui::SameLine(); ImGui::Text("[%d] %.2f (%.02f secs)", i, io.NavInputs[i], io.NavInputsDownDuration[i]); }
             ImGui::Text("NavInputs pressed:");  for (int i = 0; i < IM_ARRAYSIZE(io.NavInputs); i++) if (io.NavInputsDownDuration[i] == 0.0f) { ImGui::SameLine(); ImGui::Text("[%d]", i); }
 
-            ImGui::Button("Hovering me sets the\nkeyboard capture flag");
-            if (ImGui::IsItemHovered())
-                ImGui::CaptureKeyboardFromApp(true);
-            ImGui::SameLine();
-            ImGui::Button("Holding me clears the\nthe keyboard capture flag");
-            if (ImGui::IsItemActive())
-                ImGui::CaptureKeyboardFromApp(false);
+            // Draw an arbitrary US keyboard layout to visualize translated keys
+            {
+                const ImVec2 key_size = ImVec2(35.0f, 35.0f);
+                const float  key_rounding = 3.0f;
+                const ImVec2 key_face_size = ImVec2(25.0f, 25.0f);
+                const ImVec2 key_face_pos = ImVec2(5.0f, 3.0f);
+                const float  key_face_rounding = 2.0f;
+                const ImVec2 key_label_pos = ImVec2(7.0f, 4.0f);
+                const ImVec2 key_step = ImVec2(key_size.x - 1.0f, key_size.y - 1.0f);
+                const float  key_row_offset = 9.0f;
+
+                ImVec2 board_min = ImGui::GetCursorScreenPos();
+                ImVec2 board_max = ImVec2(board_min.x + 3 * key_step.x + 2 * key_row_offset + 10.0f, board_min.y + 3 * key_step.y + 10.0f);
+                ImVec2 start_pos = ImVec2(board_min.x + 5.0f - key_step.x, board_min.y);
+
+                struct KeyLayoutData { int Row, Col; const char* Label; ImGuiKey Key; };
+                const KeyLayoutData keys_to_display[] =
+                {
+                    { 0, 0, "", ImGuiKey_Tab },      { 0, 1, "Q", ImGuiKey_Q }, { 0, 2, "W", ImGuiKey_W }, { 0, 3, "E", ImGuiKey_E }, { 0, 4, "R", ImGuiKey_R },
+                    { 1, 0, "", ImGuiKey_CapsLock }, { 1, 1, "A", ImGuiKey_A }, { 1, 2, "S", ImGuiKey_S }, { 1, 3, "D", ImGuiKey_D }, { 1, 4, "F", ImGuiKey_F },
+                    { 2, 0, "", ImGuiKey_LeftShift },{ 2, 1, "Z", ImGuiKey_Z }, { 2, 2, "X", ImGuiKey_X }, { 2, 3, "C", ImGuiKey_C }, { 2, 4, "V", ImGuiKey_V }
+                };
+
+                // Elements rendered manually via ImDrawList API are not clipped automatically.
+                // While not strictly necessary, here IsItemVisible() is used to avoid rendering these shapes when they are out of view.
+                ImGui::Dummy(ImVec2(board_max.x - board_min.x, board_max.y - board_min.y));
+                if (ImGui::IsItemVisible())
+                {
+                    ImDrawList* draw_list = ImGui::GetWindowDrawList();
+                    draw_list->PushClipRect(board_min, board_max, true);
+                    for (int n = 0; n < IM_ARRAYSIZE(keys_to_display); n++)
+                    {
+                        const KeyLayoutData* key_data = &keys_to_display[n];
+                        ImVec2 key_min = ImVec2(start_pos.x + key_data->Col * key_step.x + key_data->Row * key_row_offset, start_pos.y + key_data->Row * key_step.y);
+                        ImVec2 key_max = ImVec2(key_min.x + key_size.x, key_min.y + key_size.y);
+                        draw_list->AddRectFilled(key_min, key_max, IM_COL32(204, 204, 204, 255), key_rounding);
+                        draw_list->AddRect(key_min, key_max, IM_COL32(24, 24, 24, 255), key_rounding);
+                        ImVec2 face_min = ImVec2(key_min.x + key_face_pos.x, key_min.y + key_face_pos.y);
+                        ImVec2 face_max = ImVec2(face_min.x + key_face_size.x, face_min.y + key_face_size.y);
+                        draw_list->AddRect(face_min, face_max, IM_COL32(193, 193, 193, 255), key_face_rounding, ImDrawFlags_None, 2.0f);
+                        draw_list->AddRectFilled(face_min, face_max, IM_COL32(252, 252, 252, 255), key_face_rounding);
+                        ImVec2 label_min = ImVec2(key_min.x + key_label_pos.x, key_min.y + key_label_pos.y);
+                        draw_list->AddText(label_min, IM_COL32(64, 64, 64, 255), key_data->Label);
+                        if (ImGui::IsKeyDown(key_data->Key))
+                            draw_list->AddRectFilled(key_min, key_max, IM_COL32(255, 0, 0, 128), key_rounding);
+                    }
+                    draw_list->PopClipRect();
+                }
+            }
+            ImGui::TreePop();
+        }
+
+        if (ImGui::TreeNode("Capture override"))
+        {
+            HelpMarker(
+                "The value of io.WantCaptureMouse and io.WantCaptureKeyboard are normally set by Dear ImGui "
+                "to instruct your application of how to route inputs. Typically, when a value is true, it means "
+                "Dear ImGui wants the corresponding inputs and we expect the underlying application to ignore them.\n\n"
+                "The most typical case is: when hovering a window, Dear ImGui set io.WantCaptureMouse to true, "
+                "and underlying application should ignore mouse inputs (in practice there are many and more subtle "
+                "rules leading to how those flags are set).");
+
+            ImGui::Text("io.WantCaptureMouse: %d", io.WantCaptureMouse);
+            ImGui::Text("io.WantCaptureMouseUnlessPopupClose: %d", io.WantCaptureMouseUnlessPopupClose);
+            ImGui::Text("io.WantCaptureKeyboard: %d", io.WantCaptureKeyboard);
+
+            HelpMarker(
+                "Hovering the colored canvas will override io.WantCaptureXXX fields.\n"
+                "Notice how normally (when set to none), the value of io.WantCaptureKeyboard would be false when hovering and true when clicking.");
+            static int capture_override_mouse = -1;
+            static int capture_override_keyboard = -1;
+            const char* capture_override_desc[] = { "None", "Set to false", "Set to true" };
+            ImGui::SetNextItemWidth(ImGui::GetFontSize() * 15);
+            ImGui::SliderInt("SetNextFrameWantCaptureMouse()", &capture_override_mouse, -1, +1, capture_override_desc[capture_override_mouse + 1], ImGuiSliderFlags_AlwaysClamp);
+            ImGui::SetNextItemWidth(ImGui::GetFontSize() * 15);
+            ImGui::SliderInt("SetNextFrameWantCaptureKeyboard()", &capture_override_keyboard, -1, +1, capture_override_desc[capture_override_keyboard + 1], ImGuiSliderFlags_AlwaysClamp);
+
+            ImGui::ColorButton("##panel", ImVec4(0.7f, 0.1f, 0.7f, 1.0f), ImGuiColorEditFlags_NoTooltip | ImGuiColorEditFlags_NoDragDrop, ImVec2(256.0f, 192.0f)); // Dummy item
+            if (ImGui::IsItemHovered() && capture_override_mouse != -1)
+                ImGui::SetNextFrameWantCaptureMouse(capture_override_mouse == 1);
+            if (ImGui::IsItemHovered() && capture_override_keyboard != -1)
+                ImGui::SetNextFrameWantCaptureKeyboard(capture_override_keyboard == 1);
+            
             ImGui::TreePop();
         }
 
@@ -5868,6 +5974,9 @@ void ImGui::ShowAboutWindow(bool* p_open)
 #ifdef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
         ImGui::Text("define: IMGUI_DISABLE_OBSOLETE_FUNCTIONS");
 #endif
+#ifdef IMGUI_DISABLE_OBSOLETE_KEYIO
+        ImGui::Text("define: IMGUI_DISABLE_OBSOLETE_KEYIO");
+#endif
 #ifdef IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS
         ImGui::Text("define: IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS");
 #endif
@@ -5981,7 +6090,7 @@ void ImGui::ShowAboutWindow(bool* p_open)
 namespace ImGui { IMGUI_API void ShowFontAtlas(ImFontAtlas* atlas); }
 
 // Demo helper function to select among loaded fonts.
-// Here we use the regular BeginCombo()/EndCombo() api which is more the more flexible one.
+// Here we use the regular BeginCombo()/EndCombo() api which is the more flexible one.
 void ImGui::ShowFontSelector(const char* label)
 {
     ImGuiIO& io = ImGui::GetIO();
@@ -7256,7 +7365,7 @@ static void ShowExampleAppSimpleOverlay(bool* p_open)
 static void ShowExampleAppFullscreen(bool* p_open)
 {
     static bool use_work_area = true;
-    static ImGuiWindowFlags flags = ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings;
+    static ImGuiWindowFlags flags = ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoSavedSettings;
 
     // We demonstrate using the full viewport area or the work area (without menu-bars, task-bars etc.)
     // Based on your use case you may want one of the other.
@@ -7509,8 +7618,8 @@ static void ShowExampleAppCustomRendering(bool* p_open)
 
             // Context menu (under default mouse threshold)
             ImVec2 drag_delta = ImGui::GetMouseDragDelta(ImGuiMouseButton_Right);
-            if (opt_enable_context_menu && ImGui::IsMouseReleased(ImGuiMouseButton_Right) && drag_delta.x == 0.0f && drag_delta.y == 0.0f)
-                ImGui::OpenPopupOnItemClick("context");
+            if (opt_enable_context_menu && drag_delta.x == 0.0f && drag_delta.y == 0.0f)
+                ImGui::OpenPopupOnItemClick("context", ImGuiPopupFlags_MouseButtonRight);
             if (ImGui::BeginPopup("context"))
             {
                 if (adding_line)

UberEngine/vendor/ImGui/imgui_draw.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.86
+// dear imgui, v1.88
 // (drawing and font code)
 
 /*
@@ -90,7 +90,7 @@ Index of this file:
 #endif
 
 //-------------------------------------------------------------------------
-// [SECTION] STB libraries implementation
+// [SECTION] STB libraries implementation (for stb_truetype and stb_rect_pack)
 //-------------------------------------------------------------------------
 
 // Compile time options:
@@ -393,7 +393,7 @@ void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error)
     for (int i = 0; i < IM_ARRAYSIZE(CircleSegmentCounts); i++)
     {
         const float radius = (float)i;
-        CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : 0);
+        CircleSegmentCounts[i] = (ImU8)((i > 0) ? IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC(radius, CircleSegmentMaxError) : IM_DRAWLIST_ARCFAST_SAMPLE_MAX);
     }
     ArcFastRadiusCutoff = IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_CALC_R(IM_DRAWLIST_ARCFAST_SAMPLE_MAX, CircleSegmentMaxError);
 }
@@ -402,10 +402,9 @@ void ImDrawListSharedData::SetCircleTessellationMaxError(float max_error)
 void ImDrawList::_ResetForNewFrame()
 {
     // Verify that the ImDrawCmd fields we want to memcmp() are contiguous in memory.
-    // (those should be IM_STATIC_ASSERT() in theory but with our pre C++11 setup the whole check doesn't compile with GCC)
-    IM_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
-    IM_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
-    IM_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
+    IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, ClipRect) == 0);
+    IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, TextureId) == sizeof(ImVec4));
+    IM_STATIC_ASSERT(IM_OFFSETOF(ImDrawCmd, VtxOffset) == sizeof(ImVec4) + sizeof(ImTextureID));
 
     CmdBuffer.resize(0);
     IdxBuffer.resize(0);
@@ -491,6 +490,7 @@ void ImDrawList::AddCallback(ImDrawCallback callback, void* callback_data)
 #define ImDrawCmd_HeaderSize                            (IM_OFFSETOF(ImDrawCmd, VtxOffset) + sizeof(unsigned int))
 #define ImDrawCmd_HeaderCompare(CMD_LHS, CMD_RHS)       (memcmp(CMD_LHS, CMD_RHS, ImDrawCmd_HeaderSize))    // Compare ClipRect, TextureId, VtxOffset
 #define ImDrawCmd_HeaderCopy(CMD_DST, CMD_SRC)          (memcpy(CMD_DST, CMD_SRC, ImDrawCmd_HeaderSize))    // Copy ClipRect, TextureId, VtxOffset
+#define ImDrawCmd_AreSequentialIdxOffset(CMD_0, CMD_1)  (CMD_0->IdxOffset + CMD_0->ElemCount == CMD_1->IdxOffset)
 
 // Try to merge two last draw commands
 void ImDrawList::_TryMergeDrawCmds()
@@ -498,7 +498,7 @@ void ImDrawList::_TryMergeDrawCmds()
     IM_ASSERT_PARANOID(CmdBuffer.Size > 0);
     ImDrawCmd* curr_cmd = &CmdBuffer.Data[CmdBuffer.Size - 1];
     ImDrawCmd* prev_cmd = curr_cmd - 1;
-    if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL)
+    if (ImDrawCmd_HeaderCompare(curr_cmd, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && curr_cmd->UserCallback == NULL && prev_cmd->UserCallback == NULL)
     {
         prev_cmd->ElemCount += curr_cmd->ElemCount;
         CmdBuffer.pop_back();
@@ -521,7 +521,7 @@ void ImDrawList::_OnChangedClipRect()
 
     // Try to merge with previous command if it matches, else use current command
     ImDrawCmd* prev_cmd = curr_cmd - 1;
-    if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
+    if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
     {
         CmdBuffer.pop_back();
         return;
@@ -544,7 +544,7 @@ void ImDrawList::_OnChangedTextureID()
 
     // Try to merge with previous command if it matches, else use current command
     ImDrawCmd* prev_cmd = curr_cmd - 1;
-    if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && prev_cmd->UserCallback == NULL)
+    if (curr_cmd->ElemCount == 0 && CmdBuffer.Size > 1 && ImDrawCmd_HeaderCompare(&_CmdHeader, prev_cmd) == 0 && ImDrawCmd_AreSequentialIdxOffset(prev_cmd, curr_cmd) && prev_cmd->UserCallback == NULL)
     {
         CmdBuffer.pop_back();
         return;
@@ -580,7 +580,7 @@ int ImDrawList::_CalcCircleAutoSegmentCount(float radius) const
 }
 
 // Render-level scissoring. This is passed down to your render function but not used for CPU-side coarse clipping. Prefer using higher-level ImGui::PushClipRect() to affect logic (hit-testing and widget culling)
-void ImDrawList::PushClipRect(ImVec2 cr_min, ImVec2 cr_max, bool intersect_with_current_clip_rect)
+void ImDrawList::PushClipRect(const ImVec2& cr_min, const ImVec2& cr_max, bool intersect_with_current_clip_rect)
 {
     ImVec4 cr(cr_min.x, cr_min.y, cr_max.x, cr_max.y);
     if (intersect_with_current_clip_rect)
@@ -973,7 +973,8 @@ void ImDrawList::AddPolyline(const ImVec2* points, const int points_count, ImU32
     }
 }
 
-// We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
+// - We intentionally avoid using ImVec2 and its math operators here to reduce cost to a minimum for debug/non-inlined builds.
+// - Filled shapes must always use clockwise winding order. The anti-aliasing fringe depends on it. Counter-clockwise shapes will have "inward" anti-aliasing.
 void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_count, ImU32 col)
 {
     if (points_count < 3)
@@ -1057,7 +1058,7 @@ void ImDrawList::AddConvexPolyFilled(const ImVec2* points, const int points_coun
 
 void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_sample, int a_max_sample, int a_step)
 {
-    if (radius <= 0.0f)
+    if (radius < 0.5f)
     {
         _Path.push_back(center);
         return;
@@ -1149,7 +1150,7 @@ void ImDrawList::_PathArcToFastEx(const ImVec2& center, float radius, int a_min_
 
 void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
 {
-    if (radius <= 0.0f)
+    if (radius < 0.5f)
     {
         _Path.push_back(center);
         return;
@@ -1168,7 +1169,7 @@ void ImDrawList::_PathArcToN(const ImVec2& center, float radius, float a_min, fl
 // 0: East, 3: South, 6: West, 9: North, 12: East
 void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_12, int a_max_of_12)
 {
-    if (radius <= 0.0f)
+    if (radius < 0.5f)
     {
         _Path.push_back(center);
         return;
@@ -1178,7 +1179,7 @@ void ImDrawList::PathArcToFast(const ImVec2& center, float radius, int a_min_of_
 
 void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, float a_max, int num_segments)
 {
-    if (radius <= 0.0f)
+    if (radius < 0.5f)
     {
         _Path.push_back(center);
         return;
@@ -1206,8 +1207,8 @@ void ImDrawList::PathArcTo(const ImVec2& center, float radius, float a_min, floa
 
         const float a_min_segment_angle = a_min_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
         const float a_max_segment_angle = a_max_sample * IM_PI * 2.0f / IM_DRAWLIST_ARCFAST_SAMPLE_MAX;
-        const bool a_emit_start = (a_min_segment_angle - a_min) != 0.0f;
-        const bool a_emit_end = (a_max - a_max_segment_angle) != 0.0f;
+        const bool a_emit_start = ImAbs(a_min_segment_angle - a_min) >= 1e-5f;
+        const bool a_emit_end = ImAbs(a_max - a_max_segment_angle) >= 1e-5f;
 
         _Path.reserve(_Path.Size + (a_mid_samples + 1 + (a_emit_start ? 1 : 0) + (a_emit_end ? 1 : 0)));
         if (a_emit_start)
@@ -1359,7 +1360,7 @@ void ImDrawList::PathRect(const ImVec2& a, const ImVec2& b, float rounding, ImDr
     rounding = ImMin(rounding, ImFabs(b.x - a.x) * ( ((flags & ImDrawFlags_RoundCornersTop)  == ImDrawFlags_RoundCornersTop)  || ((flags & ImDrawFlags_RoundCornersBottom) == ImDrawFlags_RoundCornersBottom) ? 0.5f : 1.0f ) - 1.0f);
     rounding = ImMin(rounding, ImFabs(b.y - a.y) * ( ((flags & ImDrawFlags_RoundCornersLeft) == ImDrawFlags_RoundCornersLeft) || ((flags & ImDrawFlags_RoundCornersRight)  == ImDrawFlags_RoundCornersRight)  ? 0.5f : 1.0f ) - 1.0f);
 
-    if (rounding <= 0.0f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
+    if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
     {
         PathLineTo(a);
         PathLineTo(ImVec2(b.x, a.y));
@@ -1405,7 +1406,7 @@ void ImDrawList::AddRectFilled(const ImVec2& p_min, const ImVec2& p_max, ImU32 c
 {
     if ((col & IM_COL32_A_MASK) == 0)
         return;
-    if (rounding <= 0.0f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
+    if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
     {
         PrimReserve(6, 4);
         PrimRect(p_min, p_max, col);
@@ -1481,7 +1482,7 @@ void ImDrawList::AddTriangleFilled(const ImVec2& p1, const ImVec2& p2, const ImV
 
 void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int num_segments, float thickness)
 {
-    if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
+    if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
         return;
 
     if (num_segments <= 0)
@@ -1505,7 +1506,7 @@ void ImDrawList::AddCircle(const ImVec2& center, float radius, ImU32 col, int nu
 
 void ImDrawList::AddCircleFilled(const ImVec2& center, float radius, ImU32 col, int num_segments)
 {
-    if ((col & IM_COL32_A_MASK) == 0 || radius <= 0.0f)
+    if ((col & IM_COL32_A_MASK) == 0 || radius < 0.5f)
         return;
 
     if (num_segments <= 0)
@@ -1645,7 +1646,7 @@ void ImDrawList::AddImageRounded(ImTextureID user_texture_id, const ImVec2& p_mi
         return;
 
     flags = FixRectCornerFlags(flags);
-    if (rounding <= 0.0f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
+    if (rounding < 0.5f || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
     {
         AddImage(user_texture_id, p_min, p_max, uv_min, uv_max, col);
         return;
@@ -1733,13 +1734,13 @@ void ImDrawListSplitter::Merge(ImDrawList* draw_list)
     for (int i = 1; i < _Count; i++)
     {
         ImDrawChannel& ch = _Channels[i];
-
-        // Equivalent of PopUnusedDrawCmd() for this channel's cmdbuffer and except we don't need to test for UserCallback.
-        if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0)
+        if (ch._CmdBuffer.Size > 0 && ch._CmdBuffer.back().ElemCount == 0 && ch._CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd()
             ch._CmdBuffer.pop_back();
 
         if (ch._CmdBuffer.Size > 0 && last_cmd != NULL)
         {
+            // Do not include ImDrawCmd_AreSequentialIdxOffset() in the compare as we rebuild IdxOffset values ourselves.
+            // Manipulating IdxOffset (e.g. by reordering draw commands like done by RenderDimmedBackgroundBehindWindow()) is not supported within a splitter.
             ImDrawCmd* next_cmd = &ch._CmdBuffer[0];
             if (ImDrawCmd_HeaderCompare(last_cmd, next_cmd) == 0 && last_cmd->UserCallback == NULL && next_cmd->UserCallback == NULL)
             {
@@ -2637,8 +2638,8 @@ void ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opa
     for (int i = 0; i < pack_rects.Size; i++)
         if (pack_rects[i].was_packed)
         {
-            user_rects[i].X = pack_rects[i].x;
-            user_rects[i].Y = pack_rects[i].y;
+            user_rects[i].X = (unsigned short)pack_rects[i].x;
+            user_rects[i].Y = (unsigned short)pack_rects[i].y;
             IM_ASSERT(pack_rects[i].w == user_rects[i].Width && pack_rects[i].h == user_rects[i].Height);
             atlas->TexHeight = ImMax(atlas->TexHeight, pack_rects[i].y + pack_rects[i].h);
         }
@@ -2738,13 +2739,13 @@ static void ImFontAtlasBuildRenderLinesTexData(ImFontAtlas* atlas)
         {
             unsigned int* write_ptr = &atlas->TexPixelsRGBA32[r->X + ((r->Y + y) * atlas->TexWidth)];
             for (unsigned int i = 0; i < pad_left; i++)
-                *(write_ptr + i) = IM_COL32_BLACK_TRANS;
+                *(write_ptr + i) = IM_COL32(255, 255, 255, 0);
 
             for (unsigned int i = 0; i < line_width; i++)
                 *(write_ptr + pad_left + i) = IM_COL32_WHITE;
 
             for (unsigned int i = 0; i < pad_right; i++)
-                *(write_ptr + pad_left + line_width + i) = IM_COL32_BLACK_TRANS;
+                *(write_ptr + pad_left + line_width + i) = IM_COL32(255, 255, 255, 0);
         }
 
         // Calculate UVs for this line
@@ -3523,7 +3524,7 @@ ImVec2 ImFont::CalcTextSizeA(float size, float max_width, float wrap_width, cons
 }
 
 // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
-void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, ImWchar c) const
+void ImFont::RenderChar(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, ImWchar c) const
 {
     const ImFontGlyph* glyph = FindGlyph(c);
     if (!glyph || !glyph->Visible)
@@ -3531,26 +3532,25 @@ void ImFont::RenderChar(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col
     if (glyph->Colored)
         col |= ~IM_COL32_A_MASK;
     float scale = (size >= 0.0f) ? (size / FontSize) : 1.0f;
-    pos.x = IM_FLOOR(pos.x);
-    pos.y = IM_FLOOR(pos.y);
+    float x = IM_FLOOR(pos.x);
+    float y = IM_FLOOR(pos.y);
     draw_list->PrimReserve(6, 4);
-    draw_list->PrimRectUV(ImVec2(pos.x + glyph->X0 * scale, pos.y + glyph->Y0 * scale), ImVec2(pos.x + glyph->X1 * scale, pos.y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
+    draw_list->PrimRectUV(ImVec2(x + glyph->X0 * scale, y + glyph->Y0 * scale), ImVec2(x + glyph->X1 * scale, y + glyph->Y1 * scale), ImVec2(glyph->U0, glyph->V0), ImVec2(glyph->U1, glyph->V1), col);
 }
 
 // Note: as with every ImDrawList drawing function, this expects that the font atlas texture is bound.
-void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
+void ImFont::RenderText(ImDrawList* draw_list, float size, const ImVec2& pos, ImU32 col, const ImVec4& clip_rect, const char* text_begin, const char* text_end, float wrap_width, bool cpu_fine_clip) const
 {
     if (!text_end)
         text_end = text_begin + strlen(text_begin); // ImGui:: functions generally already provides a valid text_end, so this is merely to handle direct calls.
 
     // Align to be pixel perfect
-    pos.x = IM_FLOOR(pos.x);
-    pos.y = IM_FLOOR(pos.y);
-    float x = pos.x;
-    float y = pos.y;
+    float x = IM_FLOOR(pos.x);
+    float y = IM_FLOOR(pos.y);
     if (y > clip_rect.w)
         return;
 
+    const float start_x = x;
     const float scale = size / FontSize;
     const float line_height = FontSize * scale;
     const bool word_wrap_enabled = (wrap_width > 0.0f);
@@ -3602,14 +3602,14 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col
             // Calculate how far we can render. Requires two passes on the string data but keeps the code simple and not intrusive for what's essentially an uncommon feature.
             if (!word_wrap_eol)
             {
-                word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - pos.x));
+                word_wrap_eol = CalcWordWrapPositionA(scale, s, text_end, wrap_width - (x - start_x));
                 if (word_wrap_eol == s) // Wrap_width is too small to fit anything. Force displaying 1 character to minimize the height discontinuity.
                     word_wrap_eol++;    // +1 may not be a character start point in UTF-8 but it's ok because we use s >= word_wrap_eol below
             }
 
             if (s >= word_wrap_eol)
             {
-                x = pos.x;
+                x = start_x;
                 y += line_height;
                 word_wrap_eol = NULL;
 
@@ -3640,7 +3640,7 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col
         {
             if (c == '\n')
             {
-                x = pos.x;
+                x = start_x;
                 y += line_height;
                 if (y > clip_rect.w)
                     break; // break out of main loop
@@ -3736,7 +3736,6 @@ void ImFont::RenderText(ImDrawList* draw_list, float size, ImVec2 pos, ImU32 col
 // - RenderArrow()
 // - RenderBullet()
 // - RenderCheckMark()
-// - RenderMouseCursor()
 // - RenderArrowPointingAt()
 // - RenderRectFilledRangeH()
 // - RenderRectFilledWithHole()
@@ -3797,27 +3796,6 @@ void ImGui::RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float
     draw_list->PathStroke(col, 0, thickness);
 }
 
-void ImGui::RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow)
-{
-    if (mouse_cursor == ImGuiMouseCursor_None)
-        return;
-    IM_ASSERT(mouse_cursor > ImGuiMouseCursor_None && mouse_cursor < ImGuiMouseCursor_COUNT);
-
-    ImFontAtlas* font_atlas = draw_list->_Data->Font->ContainerAtlas;
-    ImVec2 offset, size, uv[4];
-    if (font_atlas->GetMouseCursorTexData(mouse_cursor, &offset, &size, &uv[0], &uv[2]))
-    {
-        pos -= offset;
-        ImTextureID tex_id = font_atlas->TexID;
-        draw_list->PushTextureID(tex_id);
-        draw_list->AddImage(tex_id, pos + ImVec2(1, 0) * scale, pos + (ImVec2(1, 0) + size) * scale,    uv[2], uv[3], col_shadow);
-        draw_list->AddImage(tex_id, pos + ImVec2(2, 0) * scale, pos + (ImVec2(2, 0) + size) * scale,    uv[2], uv[3], col_shadow);
-        draw_list->AddImage(tex_id, pos,                        pos + size * scale,                     uv[2], uv[3], col_border);
-        draw_list->AddImage(tex_id, pos,                        pos + size * scale,                     uv[0], uv[1], col_fill);
-        draw_list->PopTextureID();
-    }
-}
-
 // Render an arrow. 'pos' is position of the arrow tip. half_sz.x is length from base to tip. half_sz.y is length on each side.
 void ImGui::RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col)
 {
@@ -3900,7 +3878,7 @@ void ImGui::RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, Im
     draw_list->PathFillConvex(col);
 }
 
-void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, ImRect outer, ImRect inner, ImU32 col, float rounding)
+void ImGui::RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding)
 {
     const bool fill_L = (inner.Min.x > outer.Min.x);
     const bool fill_R = (inner.Max.x < outer.Max.x);

UberEngine/vendor/ImGui/imgui_impl_opengl3.cpp

@@ -14,6 +14,8 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2022-05-23: OpenGL: Reworking 2021-12-15 "Using buffer orphaning" so it only happens on Intel GPU, seems to cause problems otherwise. (#4468, #4825, #4832, #5127).
+//  2022-05-13: OpenGL: Fix state corruption on OpenGL ES 2.0 due to not preserving GL_ELEMENT_ARRAY_BUFFER_BINDING and vertex attribute states.
 //  2021-12-15: OpenGL: Using buffer orphaning + glBufferSubData(), seems to fix leaks with multi-viewports with some Intel HD drivers.
 //  2021-08-23: OpenGL: Fixed ES 3.0 shader ("#version 300 es") use normal precision floats to avoid wobbly rendering at HD resolutions.
 //  2021-08-19: OpenGL: Embed and use our own minimal GL loader (imgui_impl_opengl3_loader.h), removing requirement and support for third-party loader.
@@ -95,10 +97,27 @@
 #else
 #include <stdint.h>     // intptr_t
 #endif
+#if defined(__APPLE__)
+#include <TargetConditionals.h>
+#endif
+
+// Clang warnings with -Weverything
+#if defined(__clang__)
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wold-style-cast"     // warning: use of old-style cast
+#pragma clang diagnostic ignored "-Wsign-conversion"    // warning: implicit conversion changes signedness
+#if __has_warning("-Wzero-as-null-pointer-constant")
+#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
+#endif
+#endif
 
 // GL includes
 #if defined(IMGUI_IMPL_OPENGL_ES2)
-#include <GLES2/gl2.h>
+#if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV))
+#include <OpenGLES/ES2/gl.h>    // Use GL ES 2
+#else
+#include <GLES2/gl2.h>          // Use GL ES 2
+#endif
 #if defined(__EMSCRIPTEN__)
 #ifndef GL_GLEXT_PROTOTYPES
 #define GL_GLEXT_PROTOTYPES
@@ -106,9 +125,6 @@
 #include <GLES2/gl2ext.h>
 #endif
 #elif defined(IMGUI_IMPL_OPENGL_ES3)
-#if defined(__APPLE__)
-#include <TargetConditionals.h>
-#endif
 #if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV))
 #include <OpenGLES/ES3/gl.h>    // Use GL ES 3
 #else
@@ -178,8 +194,9 @@ struct ImGui_ImplOpenGL3_Data
     GLsizeiptr      VertexBufferSize;
     GLsizeiptr      IndexBufferSize;
     bool            HasClipOrigin;
+    bool            UseBufferSubData;
 
-    ImGui_ImplOpenGL3_Data() { memset(this, 0, sizeof(*this)); }
+    ImGui_ImplOpenGL3_Data() { memset((void*)this, 0, sizeof(*this)); }
 };
 
 // Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
@@ -189,6 +206,30 @@ static ImGui_ImplOpenGL3_Data* ImGui_ImplOpenGL3_GetBackendData()
     return ImGui::GetCurrentContext() ? (ImGui_ImplOpenGL3_Data*)ImGui::GetIO().BackendRendererUserData : NULL;
 }
 
+// OpenGL vertex attribute state (for ES 1.0 and ES 2.0 only)
+#ifndef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+struct ImGui_ImplOpenGL3_VtxAttribState
+{
+    GLint   Enabled, Size, Type, Normalized, Stride;
+    GLvoid* Ptr;
+
+    void GetState(GLint index)
+    {
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_ENABLED, &Enabled);
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_SIZE, &Size);
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_TYPE, &Type);
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_NORMALIZED, &Normalized);
+        glGetVertexAttribiv(index, GL_VERTEX_ATTRIB_ARRAY_STRIDE, &Stride);
+        glGetVertexAttribPointerv(index, GL_VERTEX_ATTRIB_ARRAY_POINTER, &Ptr);
+    }
+    void SetState(GLint index)
+    {
+        glVertexAttribPointer(index, Size, Type, (GLboolean)Normalized, Stride, Ptr);
+        if (Enabled) glEnableVertexAttribArray(index); else glDisableVertexAttribArray(index);
+    }
+};
+#endif
+
 // Functions
 bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
 {
@@ -222,6 +263,14 @@ bool    ImGui_ImplOpenGL3_Init(const char* glsl_version)
         sscanf(gl_version, "%d.%d", &major, &minor);
     }
     bd->GlVersion = (GLuint)(major * 100 + minor * 10);
+
+    // Query vendor to enable glBufferSubData kludge
+#ifdef _WIN32
+    if (const char* vendor = (const char*)glGetString(GL_VENDOR))
+        if (strncmp(vendor, "Intel", 5) == 0)
+            bd->UseBufferSubData = true;
+#endif
+    //printf("GL_MAJOR_VERSION = %d\nGL_MINOR_VERSION = %d\nGL_VENDOR = '%s'\nGL_RENDERER = '%s'\n", major, minor, (const char*)glGetString(GL_VENDOR), (const char*)glGetString(GL_RENDERER)); // [DEBUG]
 #else
     bd->GlVersion = 200; // GLES 2
 #endif
@@ -386,6 +435,13 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     GLuint last_sampler; if (bd->GlVersion >= 330) { glGetIntegerv(GL_SAMPLER_BINDING, (GLint*)&last_sampler); } else { last_sampler = 0; }
 #endif
     GLuint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, (GLint*)&last_array_buffer);
+#ifndef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    // This is part of VAO on OpenGL 3.0+ and OpenGL ES 3.0+.
+    GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
+    ImGui_ImplOpenGL3_VtxAttribState last_vtx_attrib_state_pos; last_vtx_attrib_state_pos.GetState(bd->AttribLocationVtxPos);
+    ImGui_ImplOpenGL3_VtxAttribState last_vtx_attrib_state_uv; last_vtx_attrib_state_uv.GetState(bd->AttribLocationVtxUV);
+    ImGui_ImplOpenGL3_VtxAttribState last_vtx_attrib_state_color; last_vtx_attrib_state_color.GetState(bd->AttribLocationVtxColor);
+#endif
 #ifdef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
     GLuint last_vertex_array_object; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, (GLint*)&last_vertex_array_object);
 #endif
@@ -428,8 +484,13 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
         const ImDrawList* cmd_list = draw_data->CmdLists[n];
 
         // Upload vertex/index buffers
-        GLsizeiptr vtx_buffer_size = (GLsizeiptr)cmd_list->VtxBuffer.Size * (int)sizeof(ImDrawVert);
-        GLsizeiptr idx_buffer_size = (GLsizeiptr)cmd_list->IdxBuffer.Size * (int)sizeof(ImDrawIdx);
+        // - On Intel windows drivers we got reports that regular glBufferData() led to accumulating leaks when using multi-viewports, so we started using orphaning + glBufferSubData(). (See https://github.com/ocornut/imgui/issues/4468)
+        // - On NVIDIA drivers we got reports that using orphaning + glBufferSubData() led to glitches when using multi-viewports.
+        // - OpenGL drivers are in a very sorry state in 2022, for now we are switching code path based on vendors.
+        const GLsizeiptr vtx_buffer_size = (GLsizeiptr)cmd_list->VtxBuffer.Size * (int)sizeof(ImDrawVert);
+        const GLsizeiptr idx_buffer_size = (GLsizeiptr)cmd_list->IdxBuffer.Size * (int)sizeof(ImDrawIdx);
+        if (bd->UseBufferSubData)
+        {
             if (bd->VertexBufferSize < vtx_buffer_size)
             {
                 bd->VertexBufferSize = vtx_buffer_size;
@@ -442,6 +503,12 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
             }
             glBufferSubData(GL_ARRAY_BUFFER, 0, vtx_buffer_size, (const GLvoid*)cmd_list->VtxBuffer.Data);
             glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, idx_buffer_size, (const GLvoid*)cmd_list->IdxBuffer.Data);
+        }
+        else
+        {
+            glBufferData(GL_ARRAY_BUFFER, vtx_buffer_size, (const GLvoid*)cmd_list->VtxBuffer.Data, GL_STREAM_DRAW);
+            glBufferData(GL_ELEMENT_ARRAY_BUFFER, idx_buffer_size, (const GLvoid*)cmd_list->IdxBuffer.Data, GL_STREAM_DRAW);
+        }
 
         for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
         {
@@ -464,7 +531,7 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
                     continue;
 
                 // Apply scissor/clipping rectangle (Y is inverted in OpenGL)
-                glScissor((int)clip_min.x, (int)(fb_height - clip_max.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y));
+                glScissor((int)clip_min.x, (int)((float)fb_height - clip_max.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y));
 
                 // Bind texture, Draw
                 glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->GetTexID());
@@ -495,6 +562,12 @@ void    ImGui_ImplOpenGL3_RenderDrawData(ImDrawData* draw_data)
     glBindVertexArray(last_vertex_array_object);
 #endif
     glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
+#ifndef IMGUI_IMPL_OPENGL_USE_VERTEX_ARRAY
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer);
+    last_vtx_attrib_state_pos.SetState(bd->AttribLocationVtxPos);
+    last_vtx_attrib_state_uv.SetState(bd->AttribLocationVtxUV);
+    last_vtx_attrib_state_color.SetState(bd->AttribLocationVtxColor);
+#endif
     glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
     glBlendFuncSeparate(last_blend_src_rgb, last_blend_dst_rgb, last_blend_src_alpha, last_blend_dst_alpha);
     if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND);
@@ -525,6 +598,7 @@ bool ImGui_ImplOpenGL3_CreateFontsTexture()
     io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);   // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
 
     // Upload texture to graphics system
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
     GLint last_texture;
     glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
     glGenTextures(1, &bd->FontTexture);
@@ -791,3 +865,7 @@ void    ImGui_ImplOpenGL3_DestroyDeviceObjects()
     if (bd->ShaderHandle)   { glDeleteProgram(bd->ShaderHandle); bd->ShaderHandle = 0; }
     ImGui_ImplOpenGL3_DestroyFontsTexture();
 }
+
+#if defined(__clang__)
+#pragma clang diagnostic pop
+#endif

UberEngine/vendor/ImGui/imgui_impl_opengl3.h

@@ -46,7 +46,7 @@ IMGUI_IMPL_API void     ImGui_ImplOpenGL3_DestroyDeviceObjects();
 #endif
 #if (defined(__APPLE__) && (TARGET_OS_IOS || TARGET_OS_TV)) || (defined(__ANDROID__))
 #define IMGUI_IMPL_OPENGL_ES3               // iOS, Android  -> GL ES 3, "#version 300 es"
-#elif defined(__EMSCRIPTEN__)
+#elif defined(__EMSCRIPTEN__) || defined(__amigaos4__)
 #define IMGUI_IMPL_OPENGL_ES2               // Emscripten    -> GL ES 2, "#version 100"
 #else
 // Otherwise imgui_impl_opengl3_loader.h will be used.

UberEngine/vendor/ImGui/imgui_impl_opengl3_loader.h

@@ -164,6 +164,8 @@ typedef khronos_uint8_t GLubyte;
 #define GL_FLOAT                          0x1406
 #define GL_RGBA                           0x1908
 #define GL_FILL                           0x1B02
+#define GL_VENDOR                         0x1F00
+#define GL_RENDERER                       0x1F01
 #define GL_VERSION                        0x1F02
 #define GL_EXTENSIONS                     0x1F03
 #define GL_LINEAR                         0x2601
@@ -177,6 +179,7 @@ typedef void (APIENTRYP PFNGLCLEARPROC) (GLbitfield mask);
 typedef void (APIENTRYP PFNGLCLEARCOLORPROC) (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
 typedef void (APIENTRYP PFNGLDISABLEPROC) (GLenum cap);
 typedef void (APIENTRYP PFNGLENABLEPROC) (GLenum cap);
+typedef void (APIENTRYP PFNGLFLUSHPROC) (void);
 typedef void (APIENTRYP PFNGLPIXELSTOREIPROC) (GLenum pname, GLint param);
 typedef void (APIENTRYP PFNGLREADPIXELSPROC) (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
 typedef GLenum (APIENTRYP PFNGLGETERRORPROC) (void);
@@ -193,6 +196,7 @@ GLAPI void APIENTRY glClear (GLbitfield mask);
 GLAPI void APIENTRY glClearColor (GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha);
 GLAPI void APIENTRY glDisable (GLenum cap);
 GLAPI void APIENTRY glEnable (GLenum cap);
+GLAPI void APIENTRY glFlush (void);
 GLAPI void APIENTRY glPixelStorei (GLenum pname, GLint param);
 GLAPI void APIENTRY glReadPixels (GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, void *pixels);
 GLAPI GLenum APIENTRY glGetError (void);
@@ -244,6 +248,7 @@ typedef khronos_intptr_t GLintptr;
 #define GL_ARRAY_BUFFER                   0x8892
 #define GL_ELEMENT_ARRAY_BUFFER           0x8893
 #define GL_ARRAY_BUFFER_BINDING           0x8894
+#define GL_ELEMENT_ARRAY_BUFFER_BINDING   0x8895
 #define GL_STREAM_DRAW                    0x88E0
 typedef void (APIENTRYP PFNGLBINDBUFFERPROC) (GLenum target, GLuint buffer);
 typedef void (APIENTRYP PFNGLDELETEBUFFERSPROC) (GLsizei n, const GLuint *buffers);
@@ -264,7 +269,13 @@ typedef khronos_int16_t GLshort;
 typedef khronos_int8_t GLbyte;
 typedef khronos_uint16_t GLushort;
 #define GL_BLEND_EQUATION_RGB             0x8009
+#define GL_VERTEX_ATTRIB_ARRAY_ENABLED    0x8622
+#define GL_VERTEX_ATTRIB_ARRAY_SIZE       0x8623
+#define GL_VERTEX_ATTRIB_ARRAY_STRIDE     0x8624
+#define GL_VERTEX_ATTRIB_ARRAY_TYPE       0x8625
+#define GL_VERTEX_ATTRIB_ARRAY_POINTER    0x8645
 #define GL_BLEND_EQUATION_ALPHA           0x883D
+#define GL_VERTEX_ATTRIB_ARRAY_NORMALIZED 0x886A
 #define GL_FRAGMENT_SHADER                0x8B30
 #define GL_VERTEX_SHADER                  0x8B31
 #define GL_COMPILE_STATUS                 0x8B81
@@ -280,6 +291,7 @@ typedef GLuint (APIENTRYP PFNGLCREATESHADERPROC) (GLenum type);
 typedef void (APIENTRYP PFNGLDELETEPROGRAMPROC) (GLuint program);
 typedef void (APIENTRYP PFNGLDELETESHADERPROC) (GLuint shader);
 typedef void (APIENTRYP PFNGLDETACHSHADERPROC) (GLuint program, GLuint shader);
+typedef void (APIENTRYP PFNGLDISABLEVERTEXATTRIBARRAYPROC) (GLuint index);
 typedef void (APIENTRYP PFNGLENABLEVERTEXATTRIBARRAYPROC) (GLuint index);
 typedef GLint (APIENTRYP PFNGLGETATTRIBLOCATIONPROC) (GLuint program, const GLchar *name);
 typedef void (APIENTRYP PFNGLGETPROGRAMIVPROC) (GLuint program, GLenum pname, GLint *params);
@@ -287,6 +299,8 @@ typedef void (APIENTRYP PFNGLGETPROGRAMINFOLOGPROC) (GLuint program, GLsizei buf
 typedef void (APIENTRYP PFNGLGETSHADERIVPROC) (GLuint shader, GLenum pname, GLint *params);
 typedef void (APIENTRYP PFNGLGETSHADERINFOLOGPROC) (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
 typedef GLint (APIENTRYP PFNGLGETUNIFORMLOCATIONPROC) (GLuint program, const GLchar *name);
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBIVPROC) (GLuint index, GLenum pname, GLint *params);
+typedef void (APIENTRYP PFNGLGETVERTEXATTRIBPOINTERVPROC) (GLuint index, GLenum pname, void **pointer);
 typedef void (APIENTRYP PFNGLLINKPROGRAMPROC) (GLuint program);
 typedef void (APIENTRYP PFNGLSHADERSOURCEPROC) (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
 typedef void (APIENTRYP PFNGLUSEPROGRAMPROC) (GLuint program);
@@ -302,6 +316,7 @@ GLAPI GLuint APIENTRY glCreateShader (GLenum type);
 GLAPI void APIENTRY glDeleteProgram (GLuint program);
 GLAPI void APIENTRY glDeleteShader (GLuint shader);
 GLAPI void APIENTRY glDetachShader (GLuint program, GLuint shader);
+GLAPI void APIENTRY glDisableVertexAttribArray (GLuint index);
 GLAPI void APIENTRY glEnableVertexAttribArray (GLuint index);
 GLAPI GLint APIENTRY glGetAttribLocation (GLuint program, const GLchar *name);
 GLAPI void APIENTRY glGetProgramiv (GLuint program, GLenum pname, GLint *params);
@@ -309,6 +324,8 @@ GLAPI void APIENTRY glGetProgramInfoLog (GLuint program, GLsizei bufSize, GLsize
 GLAPI void APIENTRY glGetShaderiv (GLuint shader, GLenum pname, GLint *params);
 GLAPI void APIENTRY glGetShaderInfoLog (GLuint shader, GLsizei bufSize, GLsizei *length, GLchar *infoLog);
 GLAPI GLint APIENTRY glGetUniformLocation (GLuint program, const GLchar *name);
+GLAPI void APIENTRY glGetVertexAttribiv (GLuint index, GLenum pname, GLint *params);
+GLAPI void APIENTRY glGetVertexAttribPointerv (GLuint index, GLenum pname, void **pointer);
 GLAPI void APIENTRY glLinkProgram (GLuint program);
 GLAPI void APIENTRY glShaderSource (GLuint shader, GLsizei count, const GLchar *const*string, const GLint *length);
 GLAPI void APIENTRY glUseProgram (GLuint program);
@@ -437,7 +454,7 @@ GL3W_API GL3WglProc imgl3wGetProcAddress(const char *proc);
 
 /* gl3w internal state */
 union GL3WProcs {
-    GL3WglProc ptr[53];
+    GL3WglProc ptr[58];
     struct {
         PFNGLACTIVETEXTUREPROC            ActiveTexture;
         PFNGLATTACHSHADERPROC             AttachShader;
@@ -462,10 +479,12 @@ union GL3WProcs {
         PFNGLDELETEVERTEXARRAYSPROC       DeleteVertexArrays;
         PFNGLDETACHSHADERPROC             DetachShader;
         PFNGLDISABLEPROC                  Disable;
+        PFNGLDISABLEVERTEXATTRIBARRAYPROC DisableVertexAttribArray;
         PFNGLDRAWELEMENTSPROC             DrawElements;
         PFNGLDRAWELEMENTSBASEVERTEXPROC   DrawElementsBaseVertex;
         PFNGLENABLEPROC                   Enable;
         PFNGLENABLEVERTEXATTRIBARRAYPROC  EnableVertexAttribArray;
+        PFNGLFLUSHPROC                    Flush;
         PFNGLGENBUFFERSPROC               GenBuffers;
         PFNGLGENTEXTURESPROC              GenTextures;
         PFNGLGENVERTEXARRAYSPROC          GenVertexArrays;
@@ -479,6 +498,8 @@ union GL3WProcs {
         PFNGLGETSTRINGPROC                GetString;
         PFNGLGETSTRINGIPROC               GetStringi;
         PFNGLGETUNIFORMLOCATIONPROC       GetUniformLocation;
+        PFNGLGETVERTEXATTRIBPOINTERVPROC  GetVertexAttribPointerv;
+        PFNGLGETVERTEXATTRIBIVPROC        GetVertexAttribiv;
         PFNGLISENABLEDPROC                IsEnabled;
         PFNGLLINKPROGRAMPROC              LinkProgram;
         PFNGLPIXELSTOREIPROC              PixelStorei;
@@ -522,10 +543,12 @@ GL3W_API extern union GL3WProcs imgl3wProcs;
 #define glDeleteVertexArrays              imgl3wProcs.gl.DeleteVertexArrays
 #define glDetachShader                    imgl3wProcs.gl.DetachShader
 #define glDisable                         imgl3wProcs.gl.Disable
+#define glDisableVertexAttribArray        imgl3wProcs.gl.DisableVertexAttribArray
 #define glDrawElements                    imgl3wProcs.gl.DrawElements
 #define glDrawElementsBaseVertex          imgl3wProcs.gl.DrawElementsBaseVertex
 #define glEnable                          imgl3wProcs.gl.Enable
 #define glEnableVertexAttribArray         imgl3wProcs.gl.EnableVertexAttribArray
+#define glFlush                           imgl3wProcs.gl.Flush
 #define glGenBuffers                      imgl3wProcs.gl.GenBuffers
 #define glGenTextures                     imgl3wProcs.gl.GenTextures
 #define glGenVertexArrays                 imgl3wProcs.gl.GenVertexArrays
@@ -539,6 +562,8 @@ GL3W_API extern union GL3WProcs imgl3wProcs;
 #define glGetString                       imgl3wProcs.gl.GetString
 #define glGetStringi                      imgl3wProcs.gl.GetStringi
 #define glGetUniformLocation              imgl3wProcs.gl.GetUniformLocation
+#define glGetVertexAttribPointerv         imgl3wProcs.gl.GetVertexAttribPointerv
+#define glGetVertexAttribiv               imgl3wProcs.gl.GetVertexAttribiv
 #define glIsEnabled                       imgl3wProcs.gl.IsEnabled
 #define glLinkProgram                     imgl3wProcs.gl.LinkProgram
 #define glPixelStorei                     imgl3wProcs.gl.PixelStorei
@@ -709,10 +734,12 @@ static const char *proc_names[] = {
     "glDeleteVertexArrays",
     "glDetachShader",
     "glDisable",
+    "glDisableVertexAttribArray",
     "glDrawElements",
     "glDrawElementsBaseVertex",
     "glEnable",
     "glEnableVertexAttribArray",
+    "glFlush",
     "glGenBuffers",
     "glGenTextures",
     "glGenVertexArrays",
@@ -726,6 +753,8 @@ static const char *proc_names[] = {
     "glGetString",
     "glGetStringi",
     "glGetUniformLocation",
+    "glGetVertexAttribPointerv",
+    "glGetVertexAttribiv",
     "glIsEnabled",
     "glLinkProgram",
     "glPixelStorei",

UberEngine/vendor/ImGui/imgui_impl_sdl.cpp

@@ -4,10 +4,10 @@
 // (Prefer SDL 2.0.5+ for full feature support.)
 
 // Implemented features:
-//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Clipboard support.
-//  [X] Platform: Keyboard arrays indexed using SDL_SCANCODE_* codes, e.g. ImGui::IsKeyPressed(SDL_SCANCODE_SPACE).
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
 //  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 // Missing features:
 //  [ ] Platform: SDL2 handling of IME under Windows appears to be broken and it explicitly disable the regular Windows IME. You can restore Windows IME by compiling SDL with SDL_DISABLE_WINDOWS_IME.
 
@@ -18,6 +18,16 @@
 
 // CHANGELOG
 // (minor and older changes stripped away, please see git history for details)
+//  2022-03-22: Inputs: Fix mouse position issues when dragging outside of boundaries. SDL_CaptureMouse() erroneously still gives out LEAVE events when hovering OS decorations.
+//  2022-03-22: Inputs: Added support for extra mouse buttons (SDL_BUTTON_X1/SDL_BUTTON_X2).
+//  2022-02-04: Added SDL_Renderer* parameter to ImGui_ImplSDL2_InitForSDLRenderer(), so we can use SDL_GetRendererOutputSize() instead of SDL_GL_GetDrawableSize() when bound to a SDL_Renderer.
+//  2022-01-26: Inputs: replaced short-lived io.AddKeyModsEvent() (added two weeks ago) with io.AddKeyEvent() using ImGuiKey_ModXXX flags. Sorry for the confusion.
+//  2021-01-20: Inputs: calling new io.AddKeyAnalogEvent() for gamepad support, instead of writing directly to io.NavInputs[].
+//  2022-01-17: Inputs: calling new io.AddMousePosEvent(), io.AddMouseButtonEvent(), io.AddMouseWheelEvent() API (1.87+).
+//  2022-01-17: Inputs: always update key mods next and before key event (not in NewFrame) to fix input queue with very low framerates.
+//  2022-01-12: Update mouse inputs using SDL_MOUSEMOTION/SDL_WINDOWEVENT_LEAVE + fallback to provide it when focused but not hovered/captured. More standard and will allow us to pass it to future input queue API.
+//  2022-01-12: Maintain our own copy of MouseButtonsDown mask instead of using ImGui::IsAnyMouseDown() which will be obsoleted.
+//  2022-01-10: Inputs: calling new io.AddKeyEvent(), io.AddKeyModsEvent() + io.SetKeyEventNativeData() API (1.87+). Support for full ImGuiKey range.
 //  2021-08-17: Calling io.AddFocusEvent() on SDL_WINDOWEVENT_FOCUS_GAINED/SDL_WINDOWEVENT_FOCUS_LOST.
 //  2021-07-29: Inputs: MousePos is correctly reported when the host platform window is hovered but not focused (using SDL_GetMouseFocus() + SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, requires SDL 2.0.5+)
 //  2021-06-29: *BREAKING CHANGE* Removed 'SDL_Window* window' parameter to ImGui_ImplSDL2_NewFrame() which was unnecessary.
@@ -60,7 +70,7 @@
 #include <TargetConditionals.h>
 #endif
 
-#if SDL_VERSION_ATLEAST(2,0,4) && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__) && !(defined(__APPLE__) && TARGET_OS_IOS)
+#if SDL_VERSION_ATLEAST(2,0,4) && !defined(__EMSCRIPTEN__) && !defined(__ANDROID__) && !(defined(__APPLE__) && TARGET_OS_IOS) && !defined(__amigaos4__)
 #define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE    1
 #else
 #define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE    0
@@ -72,13 +82,15 @@
 struct ImGui_ImplSDL2_Data
 {
     SDL_Window*     Window;
+    SDL_Renderer*   Renderer;
     Uint64          Time;
-    bool        MousePressed[3];
+    int             MouseButtonsDown;
     SDL_Cursor*     MouseCursors[ImGuiMouseCursor_COUNT];
+    int             PendingMouseLeaveFrame;
     char*           ClipboardTextData;
     bool            MouseCanUseGlobalState;
 
-    ImGui_ImplSDL2_Data()   { memset(this, 0, sizeof(*this)); }
+    ImGui_ImplSDL2_Data()   { memset((void*)this, 0, sizeof(*this)); }
 };
 
 // Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts
@@ -105,9 +117,131 @@ static void ImGui_ImplSDL2_SetClipboardText(void*, const char* text)
     SDL_SetClipboardText(text);
 }
 
+static ImGuiKey ImGui_ImplSDL2_KeycodeToImGuiKey(int keycode)
+{
+    switch (keycode)
+    {
+        case SDLK_TAB: return ImGuiKey_Tab;
+        case SDLK_LEFT: return ImGuiKey_LeftArrow;
+        case SDLK_RIGHT: return ImGuiKey_RightArrow;
+        case SDLK_UP: return ImGuiKey_UpArrow;
+        case SDLK_DOWN: return ImGuiKey_DownArrow;
+        case SDLK_PAGEUP: return ImGuiKey_PageUp;
+        case SDLK_PAGEDOWN: return ImGuiKey_PageDown;
+        case SDLK_HOME: return ImGuiKey_Home;
+        case SDLK_END: return ImGuiKey_End;
+        case SDLK_INSERT: return ImGuiKey_Insert;
+        case SDLK_DELETE: return ImGuiKey_Delete;
+        case SDLK_BACKSPACE: return ImGuiKey_Backspace;
+        case SDLK_SPACE: return ImGuiKey_Space;
+        case SDLK_RETURN: return ImGuiKey_Enter;
+        case SDLK_ESCAPE: return ImGuiKey_Escape;
+        case SDLK_QUOTE: return ImGuiKey_Apostrophe;
+        case SDLK_COMMA: return ImGuiKey_Comma;
+        case SDLK_MINUS: return ImGuiKey_Minus;
+        case SDLK_PERIOD: return ImGuiKey_Period;
+        case SDLK_SLASH: return ImGuiKey_Slash;
+        case SDLK_SEMICOLON: return ImGuiKey_Semicolon;
+        case SDLK_EQUALS: return ImGuiKey_Equal;
+        case SDLK_LEFTBRACKET: return ImGuiKey_LeftBracket;
+        case SDLK_BACKSLASH: return ImGuiKey_Backslash;
+        case SDLK_RIGHTBRACKET: return ImGuiKey_RightBracket;
+        case SDLK_BACKQUOTE: return ImGuiKey_GraveAccent;
+        case SDLK_CAPSLOCK: return ImGuiKey_CapsLock;
+        case SDLK_SCROLLLOCK: return ImGuiKey_ScrollLock;
+        case SDLK_NUMLOCKCLEAR: return ImGuiKey_NumLock;
+        case SDLK_PRINTSCREEN: return ImGuiKey_PrintScreen;
+        case SDLK_PAUSE: return ImGuiKey_Pause;
+        case SDLK_KP_0: return ImGuiKey_Keypad0;
+        case SDLK_KP_1: return ImGuiKey_Keypad1;
+        case SDLK_KP_2: return ImGuiKey_Keypad2;
+        case SDLK_KP_3: return ImGuiKey_Keypad3;
+        case SDLK_KP_4: return ImGuiKey_Keypad4;
+        case SDLK_KP_5: return ImGuiKey_Keypad5;
+        case SDLK_KP_6: return ImGuiKey_Keypad6;
+        case SDLK_KP_7: return ImGuiKey_Keypad7;
+        case SDLK_KP_8: return ImGuiKey_Keypad8;
+        case SDLK_KP_9: return ImGuiKey_Keypad9;
+        case SDLK_KP_PERIOD: return ImGuiKey_KeypadDecimal;
+        case SDLK_KP_DIVIDE: return ImGuiKey_KeypadDivide;
+        case SDLK_KP_MULTIPLY: return ImGuiKey_KeypadMultiply;
+        case SDLK_KP_MINUS: return ImGuiKey_KeypadSubtract;
+        case SDLK_KP_PLUS: return ImGuiKey_KeypadAdd;
+        case SDLK_KP_ENTER: return ImGuiKey_KeypadEnter;
+        case SDLK_KP_EQUALS: return ImGuiKey_KeypadEqual;
+        case SDLK_LCTRL: return ImGuiKey_LeftCtrl;
+        case SDLK_LSHIFT: return ImGuiKey_LeftShift;
+        case SDLK_LALT: return ImGuiKey_LeftAlt;
+        case SDLK_LGUI: return ImGuiKey_LeftSuper;
+        case SDLK_RCTRL: return ImGuiKey_RightCtrl;
+        case SDLK_RSHIFT: return ImGuiKey_RightShift;
+        case SDLK_RALT: return ImGuiKey_RightAlt;
+        case SDLK_RGUI: return ImGuiKey_RightSuper;
+        case SDLK_APPLICATION: return ImGuiKey_Menu;
+        case SDLK_0: return ImGuiKey_0;
+        case SDLK_1: return ImGuiKey_1;
+        case SDLK_2: return ImGuiKey_2;
+        case SDLK_3: return ImGuiKey_3;
+        case SDLK_4: return ImGuiKey_4;
+        case SDLK_5: return ImGuiKey_5;
+        case SDLK_6: return ImGuiKey_6;
+        case SDLK_7: return ImGuiKey_7;
+        case SDLK_8: return ImGuiKey_8;
+        case SDLK_9: return ImGuiKey_9;
+        case SDLK_a: return ImGuiKey_A;
+        case SDLK_b: return ImGuiKey_B;
+        case SDLK_c: return ImGuiKey_C;
+        case SDLK_d: return ImGuiKey_D;
+        case SDLK_e: return ImGuiKey_E;
+        case SDLK_f: return ImGuiKey_F;
+        case SDLK_g: return ImGuiKey_G;
+        case SDLK_h: return ImGuiKey_H;
+        case SDLK_i: return ImGuiKey_I;
+        case SDLK_j: return ImGuiKey_J;
+        case SDLK_k: return ImGuiKey_K;
+        case SDLK_l: return ImGuiKey_L;
+        case SDLK_m: return ImGuiKey_M;
+        case SDLK_n: return ImGuiKey_N;
+        case SDLK_o: return ImGuiKey_O;
+        case SDLK_p: return ImGuiKey_P;
+        case SDLK_q: return ImGuiKey_Q;
+        case SDLK_r: return ImGuiKey_R;
+        case SDLK_s: return ImGuiKey_S;
+        case SDLK_t: return ImGuiKey_T;
+        case SDLK_u: return ImGuiKey_U;
+        case SDLK_v: return ImGuiKey_V;
+        case SDLK_w: return ImGuiKey_W;
+        case SDLK_x: return ImGuiKey_X;
+        case SDLK_y: return ImGuiKey_Y;
+        case SDLK_z: return ImGuiKey_Z;
+        case SDLK_F1: return ImGuiKey_F1;
+        case SDLK_F2: return ImGuiKey_F2;
+        case SDLK_F3: return ImGuiKey_F3;
+        case SDLK_F4: return ImGuiKey_F4;
+        case SDLK_F5: return ImGuiKey_F5;
+        case SDLK_F6: return ImGuiKey_F6;
+        case SDLK_F7: return ImGuiKey_F7;
+        case SDLK_F8: return ImGuiKey_F8;
+        case SDLK_F9: return ImGuiKey_F9;
+        case SDLK_F10: return ImGuiKey_F10;
+        case SDLK_F11: return ImGuiKey_F11;
+        case SDLK_F12: return ImGuiKey_F12;
+    }
+    return ImGuiKey_None;
+}
+
+static void ImGui_ImplSDL2_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
+{
+    ImGuiIO& io = ImGui::GetIO();
+    io.AddKeyEvent(ImGuiKey_ModCtrl, (sdl_key_mods & KMOD_CTRL) != 0);
+    io.AddKeyEvent(ImGuiKey_ModShift, (sdl_key_mods & KMOD_SHIFT) != 0);
+    io.AddKeyEvent(ImGuiKey_ModAlt, (sdl_key_mods & KMOD_ALT) != 0);
+    io.AddKeyEvent(ImGuiKey_ModSuper, (sdl_key_mods & KMOD_GUI) != 0);
+}
+
 // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
-// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application.
-// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application.
+// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
+// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
 // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
 // If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
 bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
@@ -117,19 +251,31 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
 
     switch (event->type)
     {
+        case SDL_MOUSEMOTION:
+        {
+            io.AddMousePosEvent((float)event->motion.x, (float)event->motion.y);
+            return true;
+        }
         case SDL_MOUSEWHEEL:
         {
-            if (event->wheel.x > 0) io.MouseWheelH += 1;
-            if (event->wheel.x < 0) io.MouseWheelH -= 1;
-            if (event->wheel.y > 0) io.MouseWheel += 1;
-            if (event->wheel.y < 0) io.MouseWheel -= 1;
+            float wheel_x = (event->wheel.x > 0) ? 1.0f : (event->wheel.x < 0) ? -1.0f : 0.0f;
+            float wheel_y = (event->wheel.y > 0) ? 1.0f : (event->wheel.y < 0) ? -1.0f : 0.0f;
+            io.AddMouseWheelEvent(wheel_x, wheel_y);
             return true;
         }
         case SDL_MOUSEBUTTONDOWN:
+        case SDL_MOUSEBUTTONUP:
         {
-            if (event->button.button == SDL_BUTTON_LEFT) { bd->MousePressed[0] = true; }
-            if (event->button.button == SDL_BUTTON_RIGHT) { bd->MousePressed[1] = true; }
-            if (event->button.button == SDL_BUTTON_MIDDLE) { bd->MousePressed[2] = true; }
+            int mouse_button = -1;
+            if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
+            if (event->button.button == SDL_BUTTON_RIGHT) { mouse_button = 1; }
+            if (event->button.button == SDL_BUTTON_MIDDLE) { mouse_button = 2; }
+            if (event->button.button == SDL_BUTTON_X1) { mouse_button = 3; }
+            if (event->button.button == SDL_BUTTON_X2) { mouse_button = 4; }
+            if (mouse_button == -1)
+                break;
+            io.AddMouseButtonEvent(mouse_button, (event->type == SDL_MOUSEBUTTONDOWN));
+            bd->MouseButtonsDown = (event->type == SDL_MOUSEBUTTONDOWN) ? (bd->MouseButtonsDown | (1 << mouse_button)) : (bd->MouseButtonsDown & ~(1 << mouse_button));
             return true;
         }
         case SDL_TEXTINPUT:
@@ -140,22 +286,25 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
         case SDL_KEYDOWN:
         case SDL_KEYUP:
         {
-            int key = event->key.keysym.scancode;
-            IM_ASSERT(key >= 0 && key < IM_ARRAYSIZE(io.KeysDown));
-            io.KeysDown[key] = (event->type == SDL_KEYDOWN);
-            io.KeyShift = ((SDL_GetModState() & KMOD_SHIFT) != 0);
-            io.KeyCtrl = ((SDL_GetModState() & KMOD_CTRL) != 0);
-            io.KeyAlt = ((SDL_GetModState() & KMOD_ALT) != 0);
-#ifdef _WIN32
-            io.KeySuper = false;
-#else
-            io.KeySuper = ((SDL_GetModState() & KMOD_GUI) != 0);
-#endif
+            ImGui_ImplSDL2_UpdateKeyModifiers((SDL_Keymod)event->key.keysym.mod);
+            ImGuiKey key = ImGui_ImplSDL2_KeycodeToImGuiKey(event->key.keysym.sym);
+            io.AddKeyEvent(key, (event->type == SDL_KEYDOWN));
+            io.SetKeyEventNativeData(key, event->key.keysym.sym, event->key.keysym.scancode, event->key.keysym.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
             return true;
         }
         case SDL_WINDOWEVENT:
         {
-            if (event->window.event == SDL_WINDOWEVENT_FOCUS_GAINED)
+            // - When capturing mouse, SDL will send a bunch of conflicting LEAVE/ENTER event on every mouse move, but the final ENTER tends to be right.
+            // - However we won't get a correct LEAVE event for a captured window.
+            // - In some cases, when detaching a window from main viewport SDL may send SDL_WINDOWEVENT_ENTER one frame too late,
+            //   causing SDL_WINDOWEVENT_LEAVE on previous frame to interrupt drag operation by clear mouse position. This is why
+            //   we delay process the SDL_WINDOWEVENT_LEAVE events by one frame. See issue #5012 for details.
+            Uint8 window_event = event->window.event;
+            if (window_event == SDL_WINDOWEVENT_ENTER)
+                bd->PendingMouseLeaveFrame = 0;
+            if (window_event == SDL_WINDOWEVENT_LEAVE)
+                bd->PendingMouseLeaveFrame = ImGui::GetFrameCount() + 1;
+            if (window_event == SDL_WINDOWEVENT_FOCUS_GAINED)
                 io.AddFocusEvent(true);
             else if (event->window.event == SDL_WINDOWEVENT_FOCUS_LOST)
                 io.AddFocusEvent(false);
@@ -165,7 +314,7 @@ bool ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event)
     return false;
 }
 
-static bool ImGui_ImplSDL2_Init(SDL_Window* window)
+static bool ImGui_ImplSDL2_Init(SDL_Window* window, SDL_Renderer* renderer)
 {
     ImGuiIO& io = ImGui::GetIO();
     IM_ASSERT(io.BackendPlatformUserData == NULL && "Already initialized a platform backend!");
@@ -189,32 +338,9 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window)
     io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos;        // We can honor io.WantSetMousePos requests (optional, rarely used)
 
     bd->Window = window;
+    bd->Renderer = renderer;
     bd->MouseCanUseGlobalState = mouse_can_use_global_state;
 
-    // Keyboard mapping. Dear ImGui will use those indices to peek into the io.KeysDown[] array.
-    io.KeyMap[ImGuiKey_Tab] = SDL_SCANCODE_TAB;
-    io.KeyMap[ImGuiKey_LeftArrow] = SDL_SCANCODE_LEFT;
-    io.KeyMap[ImGuiKey_RightArrow] = SDL_SCANCODE_RIGHT;
-    io.KeyMap[ImGuiKey_UpArrow] = SDL_SCANCODE_UP;
-    io.KeyMap[ImGuiKey_DownArrow] = SDL_SCANCODE_DOWN;
-    io.KeyMap[ImGuiKey_PageUp] = SDL_SCANCODE_PAGEUP;
-    io.KeyMap[ImGuiKey_PageDown] = SDL_SCANCODE_PAGEDOWN;
-    io.KeyMap[ImGuiKey_Home] = SDL_SCANCODE_HOME;
-    io.KeyMap[ImGuiKey_End] = SDL_SCANCODE_END;
-    io.KeyMap[ImGuiKey_Insert] = SDL_SCANCODE_INSERT;
-    io.KeyMap[ImGuiKey_Delete] = SDL_SCANCODE_DELETE;
-    io.KeyMap[ImGuiKey_Backspace] = SDL_SCANCODE_BACKSPACE;
-    io.KeyMap[ImGuiKey_Space] = SDL_SCANCODE_SPACE;
-    io.KeyMap[ImGuiKey_Enter] = SDL_SCANCODE_RETURN;
-    io.KeyMap[ImGuiKey_Escape] = SDL_SCANCODE_ESCAPE;
-    io.KeyMap[ImGuiKey_KeyPadEnter] = SDL_SCANCODE_KP_ENTER;
-    io.KeyMap[ImGuiKey_A] = SDL_SCANCODE_A;
-    io.KeyMap[ImGuiKey_C] = SDL_SCANCODE_C;
-    io.KeyMap[ImGuiKey_V] = SDL_SCANCODE_V;
-    io.KeyMap[ImGuiKey_X] = SDL_SCANCODE_X;
-    io.KeyMap[ImGuiKey_Y] = SDL_SCANCODE_Y;
-    io.KeyMap[ImGuiKey_Z] = SDL_SCANCODE_Z;
-
     io.SetClipboardTextFn = ImGui_ImplSDL2_SetClipboardText;
     io.GetClipboardTextFn = ImGui_ImplSDL2_GetClipboardText;
     io.ClipboardUserData = NULL;
@@ -230,11 +356,12 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window)
     bd->MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
     bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NO);
 
+    // Set platform dependent data in viewport
 #ifdef _WIN32
     SDL_SysWMinfo info;
     SDL_VERSION(&info.version);
     if (SDL_GetWindowWMInfo(window, &info))
-        io.ImeWindowHandle = info.info.win.window;
+        ImGui::GetMainViewport()->PlatformHandleRaw = (void*)info.info.win.window;
 #else
     (void)window;
 #endif
@@ -254,7 +381,7 @@ static bool ImGui_ImplSDL2_Init(SDL_Window* window)
 bool ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context)
 {
     IM_UNUSED(sdl_gl_context); // Viewport branch will need this.
-    return ImGui_ImplSDL2_Init(window);
+    return ImGui_ImplSDL2_Init(window, NULL);
 }
 
 bool ImGui_ImplSDL2_InitForVulkan(SDL_Window* window)
@@ -262,7 +389,7 @@ bool ImGui_ImplSDL2_InitForVulkan(SDL_Window* window)
 #if !SDL_HAS_VULKAN
     IM_ASSERT(0 && "Unsupported");
 #endif
-    return ImGui_ImplSDL2_Init(window);
+    return ImGui_ImplSDL2_Init(window, NULL);
 }
 
 bool ImGui_ImplSDL2_InitForD3D(SDL_Window* window)
@@ -270,17 +397,17 @@ bool ImGui_ImplSDL2_InitForD3D(SDL_Window* window)
 #if !defined(_WIN32)
     IM_ASSERT(0 && "Unsupported");
 #endif
-    return ImGui_ImplSDL2_Init(window);
+    return ImGui_ImplSDL2_Init(window, NULL);
 }
 
 bool ImGui_ImplSDL2_InitForMetal(SDL_Window* window)
 {
-    return ImGui_ImplSDL2_Init(window);
+    return ImGui_ImplSDL2_Init(window, NULL);
 }
 
-bool ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window* window)
+bool ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer)
 {
-    return ImGui_ImplSDL2_Init(window);
+    return ImGui_ImplSDL2_Init(window, renderer);
 }
 
 void ImGui_ImplSDL2_Shutdown()
@@ -299,60 +426,34 @@ void ImGui_ImplSDL2_Shutdown()
     IM_DELETE(bd);
 }
 
-static void ImGui_ImplSDL2_UpdateMousePosAndButtons()
+static void ImGui_ImplSDL2_UpdateMouseData()
 {
     ImGui_ImplSDL2_Data* bd = ImGui_ImplSDL2_GetBackendData();
     ImGuiIO& io = ImGui::GetIO();
 
-    ImVec2 mouse_pos_prev = io.MousePos;
-    io.MousePos = ImVec2(-FLT_MAX, -FLT_MAX);
-
-    // Update mouse buttons
-    int mouse_x_local, mouse_y_local;
-    Uint32 mouse_buttons = SDL_GetMouseState(&mouse_x_local, &mouse_y_local);
-    io.MouseDown[0] = bd->MousePressed[0] || (mouse_buttons & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0;  // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
-    io.MouseDown[1] = bd->MousePressed[1] || (mouse_buttons & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0;
-    io.MouseDown[2] = bd->MousePressed[2] || (mouse_buttons & SDL_BUTTON(SDL_BUTTON_MIDDLE)) != 0;
-    bd->MousePressed[0] = bd->MousePressed[1] = bd->MousePressed[2] = false;
-
-    // Obtain focused and hovered window. We forward mouse input when focused or when hovered (and no other window is capturing)
+    // We forward mouse input when hovered or captured (via SDL_MOUSEMOTION) or when focused (below)
 #if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
-    SDL_Window* focused_window = SDL_GetKeyboardFocus();
-    SDL_Window* hovered_window = SDL_HAS_MOUSE_FOCUS_CLICKTHROUGH ? SDL_GetMouseFocus() : NULL; // This is better but is only reliably useful with SDL 2.0.5+ and SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH.
-    SDL_Window* mouse_window = NULL;
-    if (hovered_window && bd->Window == hovered_window)
-        mouse_window = hovered_window;
-    else if (focused_window && bd->Window == focused_window)
-        mouse_window = focused_window;
-
     // SDL_CaptureMouse() let the OS know e.g. that our imgui drag outside the SDL window boundaries shouldn't e.g. trigger other operations outside
-    SDL_CaptureMouse(ImGui::IsAnyMouseDown() ? SDL_TRUE : SDL_FALSE);
+    SDL_CaptureMouse(bd->MouseButtonsDown != 0 ? SDL_TRUE : SDL_FALSE);
+    SDL_Window* focused_window = SDL_GetKeyboardFocus();
+    const bool is_app_focused = (bd->Window == focused_window);
 #else
-    // SDL 2.0.3 and non-windowed systems: single-viewport only
-    SDL_Window* mouse_window = (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_INPUT_FOCUS) ? bd->Window : NULL;
+    const bool is_app_focused = (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_INPUT_FOCUS) != 0; // SDL 2.0.3 and non-windowed systems: single-viewport only
 #endif
-
-    if (mouse_window == NULL)
-       return;
-
-    // Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
+    if (is_app_focused)
+    {
+        // (Optional) Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
         if (io.WantSetMousePos)
-        SDL_WarpMouseInWindow(bd->Window, (int)mouse_pos_prev.x, (int)mouse_pos_prev.y);
+            SDL_WarpMouseInWindow(bd->Window, (int)io.MousePos.x, (int)io.MousePos.y);
 
-    // Set Dear ImGui mouse position from OS position + get buttons. (this is the common behavior)
-    if (bd->MouseCanUseGlobalState)
+        // (Optional) Fallback to provide mouse position when focused (SDL_MOUSEMOTION already provides this when hovered or captured)
+        if (bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0)
         {
-        // Single-viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
-        // Unlike local position obtained earlier this will be valid when straying out of bounds.
-        int mouse_x_global, mouse_y_global;
+            int window_x, window_y, mouse_x_global, mouse_y_global;
             SDL_GetGlobalMouseState(&mouse_x_global, &mouse_y_global);
-        int window_x, window_y;
-        SDL_GetWindowPosition(mouse_window, &window_x, &window_y);
-        io.MousePos = ImVec2((float)(mouse_x_global - window_x), (float)(mouse_y_global - window_y));
+            SDL_GetWindowPosition(bd->Window, &window_x, &window_y);
+            io.AddMousePosEvent((float)(mouse_x_global - window_x), (float)(mouse_y_global - window_y));
         }
-    else
-    {
-        io.MousePos = ImVec2((float)mouse_x_local, (float)mouse_y_local);
     }
 }
 
@@ -380,40 +481,45 @@ static void ImGui_ImplSDL2_UpdateMouseCursor()
 static void ImGui_ImplSDL2_UpdateGamepads()
 {
     ImGuiIO& io = ImGui::GetIO();
-    memset(io.NavInputs, 0, sizeof(io.NavInputs));
     if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0)
         return;
 
     // Get gamepad
+    io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
     SDL_GameController* game_controller = SDL_GameControllerOpen(0);
     if (!game_controller)
-    {
-        io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
         return;
-    }
+    io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
 
     // Update gamepad inputs
-    #define MAP_BUTTON(NAV_NO, BUTTON_NO)       { io.NavInputs[NAV_NO] = (SDL_GameControllerGetButton(game_controller, BUTTON_NO) != 0) ? 1.0f : 0.0f; }
-    #define MAP_ANALOG(NAV_NO, AXIS_NO, V0, V1) { float vn = (float)(SDL_GameControllerGetAxis(game_controller, AXIS_NO) - V0) / (float)(V1 - V0); if (vn > 1.0f) vn = 1.0f; if (vn > 0.0f && io.NavInputs[NAV_NO] < vn) io.NavInputs[NAV_NO] = vn; }
+    #define IM_SATURATE(V)                      (V < 0.0f ? 0.0f : V > 1.0f ? 1.0f : V)
+    #define MAP_BUTTON(KEY_NO, BUTTON_NO)       { io.AddKeyEvent(KEY_NO, SDL_GameControllerGetButton(game_controller, BUTTON_NO) != 0); }
+    #define MAP_ANALOG(KEY_NO, AXIS_NO, V0, V1) { float vn = (float)(SDL_GameControllerGetAxis(game_controller, AXIS_NO) - V0) / (float)(V1 - V0); vn = IM_SATURATE(vn); io.AddKeyAnalogEvent(KEY_NO, vn > 0.1f, vn); }
     const int thumb_dead_zone = 8000;           // SDL_gamecontroller.h suggests using this value.
-    MAP_BUTTON(ImGuiNavInput_Activate,      SDL_CONTROLLER_BUTTON_A);               // Cross / A
-    MAP_BUTTON(ImGuiNavInput_Cancel,        SDL_CONTROLLER_BUTTON_B);               // Circle / B
-    MAP_BUTTON(ImGuiNavInput_Menu,          SDL_CONTROLLER_BUTTON_X);               // Square / X
-    MAP_BUTTON(ImGuiNavInput_Input,         SDL_CONTROLLER_BUTTON_Y);               // Triangle / Y
-    MAP_BUTTON(ImGuiNavInput_DpadLeft,      SDL_CONTROLLER_BUTTON_DPAD_LEFT);       // D-Pad Left
-    MAP_BUTTON(ImGuiNavInput_DpadRight,     SDL_CONTROLLER_BUTTON_DPAD_RIGHT);      // D-Pad Right
-    MAP_BUTTON(ImGuiNavInput_DpadUp,        SDL_CONTROLLER_BUTTON_DPAD_UP);         // D-Pad Up
-    MAP_BUTTON(ImGuiNavInput_DpadDown,      SDL_CONTROLLER_BUTTON_DPAD_DOWN);       // D-Pad Down
-    MAP_BUTTON(ImGuiNavInput_FocusPrev,     SDL_CONTROLLER_BUTTON_LEFTSHOULDER);    // L1 / LB
-    MAP_BUTTON(ImGuiNavInput_FocusNext,     SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);   // R1 / RB
-    MAP_BUTTON(ImGuiNavInput_TweakSlow,     SDL_CONTROLLER_BUTTON_LEFTSHOULDER);    // L1 / LB
-    MAP_BUTTON(ImGuiNavInput_TweakFast,     SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);   // R1 / RB
-    MAP_ANALOG(ImGuiNavInput_LStickLeft,    SDL_CONTROLLER_AXIS_LEFTX, -thumb_dead_zone, -32768);
-    MAP_ANALOG(ImGuiNavInput_LStickRight,   SDL_CONTROLLER_AXIS_LEFTX, +thumb_dead_zone, +32767);
-    MAP_ANALOG(ImGuiNavInput_LStickUp,      SDL_CONTROLLER_AXIS_LEFTY, -thumb_dead_zone, -32767);
-    MAP_ANALOG(ImGuiNavInput_LStickDown,    SDL_CONTROLLER_AXIS_LEFTY, +thumb_dead_zone, +32767);
-
-    io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
+    MAP_BUTTON(ImGuiKey_GamepadStart,           SDL_CONTROLLER_BUTTON_START);
+    MAP_BUTTON(ImGuiKey_GamepadBack,            SDL_CONTROLLER_BUTTON_BACK);
+    MAP_BUTTON(ImGuiKey_GamepadFaceDown,        SDL_CONTROLLER_BUTTON_A);              // Xbox A, PS Cross
+    MAP_BUTTON(ImGuiKey_GamepadFaceRight,       SDL_CONTROLLER_BUTTON_B);              // Xbox B, PS Circle
+    MAP_BUTTON(ImGuiKey_GamepadFaceLeft,        SDL_CONTROLLER_BUTTON_X);              // Xbox X, PS Square
+    MAP_BUTTON(ImGuiKey_GamepadFaceUp,          SDL_CONTROLLER_BUTTON_Y);              // Xbox Y, PS Triangle
+    MAP_BUTTON(ImGuiKey_GamepadDpadLeft,        SDL_CONTROLLER_BUTTON_DPAD_LEFT);
+    MAP_BUTTON(ImGuiKey_GamepadDpadRight,       SDL_CONTROLLER_BUTTON_DPAD_RIGHT);
+    MAP_BUTTON(ImGuiKey_GamepadDpadUp,          SDL_CONTROLLER_BUTTON_DPAD_UP);
+    MAP_BUTTON(ImGuiKey_GamepadDpadDown,        SDL_CONTROLLER_BUTTON_DPAD_DOWN);
+    MAP_BUTTON(ImGuiKey_GamepadL1,              SDL_CONTROLLER_BUTTON_LEFTSHOULDER);
+    MAP_BUTTON(ImGuiKey_GamepadR1,              SDL_CONTROLLER_BUTTON_RIGHTSHOULDER);
+    MAP_ANALOG(ImGuiKey_GamepadL2,              SDL_CONTROLLER_AXIS_TRIGGERLEFT,  0.0f, 32767);
+    MAP_ANALOG(ImGuiKey_GamepadR2,              SDL_CONTROLLER_AXIS_TRIGGERRIGHT, 0.0f, 32767);
+    MAP_BUTTON(ImGuiKey_GamepadL3,              SDL_CONTROLLER_BUTTON_LEFTSTICK);
+    MAP_BUTTON(ImGuiKey_GamepadR3,              SDL_CONTROLLER_BUTTON_RIGHTSTICK);
+    MAP_ANALOG(ImGuiKey_GamepadLStickLeft,      SDL_CONTROLLER_AXIS_LEFTX,  -thumb_dead_zone, -32768);
+    MAP_ANALOG(ImGuiKey_GamepadLStickRight,     SDL_CONTROLLER_AXIS_LEFTX,  +thumb_dead_zone, +32767);
+    MAP_ANALOG(ImGuiKey_GamepadLStickUp,        SDL_CONTROLLER_AXIS_LEFTY,  -thumb_dead_zone, -32768);
+    MAP_ANALOG(ImGuiKey_GamepadLStickDown,      SDL_CONTROLLER_AXIS_LEFTY,  +thumb_dead_zone, +32767);
+    MAP_ANALOG(ImGuiKey_GamepadRStickLeft,      SDL_CONTROLLER_AXIS_RIGHTX, -thumb_dead_zone, -32768);
+    MAP_ANALOG(ImGuiKey_GamepadRStickRight,     SDL_CONTROLLER_AXIS_RIGHTX, +thumb_dead_zone, +32767);
+    MAP_ANALOG(ImGuiKey_GamepadRStickUp,        SDL_CONTROLLER_AXIS_RIGHTY, -thumb_dead_zone, -32768);
+    MAP_ANALOG(ImGuiKey_GamepadRStickDown,      SDL_CONTROLLER_AXIS_RIGHTY, +thumb_dead_zone, +32767);
     #undef MAP_BUTTON
     #undef MAP_ANALOG
 }
@@ -430,6 +536,9 @@ void ImGui_ImplSDL2_NewFrame()
     SDL_GetWindowSize(bd->Window, &w, &h);
     if (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_MINIMIZED)
         w = h = 0;
+    if (bd->Renderer != NULL)
+        SDL_GetRendererOutputSize(bd->Renderer, &display_w, &display_h);
+    else
         SDL_GL_GetDrawableSize(bd->Window, &display_w, &display_h);
     io.DisplaySize = ImVec2((float)w, (float)h);
     if (w > 0 && h > 0)
@@ -441,7 +550,13 @@ void ImGui_ImplSDL2_NewFrame()
     io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / frequency) : (float)(1.0f / 60.0f);
     bd->Time = current_time;
 
-    ImGui_ImplSDL2_UpdateMousePosAndButtons();
+    if (bd->PendingMouseLeaveFrame && bd->PendingMouseLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
+    {
+        io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
+        bd->PendingMouseLeaveFrame = 0;
+    }
+
+    ImGui_ImplSDL2_UpdateMouseData();
     ImGui_ImplSDL2_UpdateMouseCursor();
 
     // Update game controllers (if enabled and available)

UberEngine/vendor/ImGui/imgui_impl_sdl.h

@@ -3,10 +3,10 @@
 // (Info: SDL2 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
 
 // Implemented features:
-//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 //  [X] Platform: Clipboard support.
-//  [X] Platform: Keyboard arrays indexed using SDL_SCANCODE_* codes, e.g. ImGui::IsKeyPressed(SDL_SCANCODE_SPACE).
+//  [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
 //  [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
+//  [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
 // Missing features:
 //  [ ] Platform: SDL2 handling of IME under Windows appears to be broken and it explicitly disable the regular Windows IME. You can restore Windows IME by compiling SDL with SDL_DISABLE_WINDOWS_IME.
 
@@ -19,13 +19,14 @@
 #include "imgui.h"      // IMGUI_IMPL_API
 
 struct SDL_Window;
+struct SDL_Renderer;
 typedef union SDL_Event SDL_Event;
 
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForVulkan(SDL_Window* window);
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForD3D(SDL_Window* window);
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForMetal(SDL_Window* window);
-IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window* window);
+IMGUI_IMPL_API bool     ImGui_ImplSDL2_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer);
 IMGUI_IMPL_API void     ImGui_ImplSDL2_Shutdown();
 IMGUI_IMPL_API void     ImGui_ImplSDL2_NewFrame();
 IMGUI_IMPL_API bool     ImGui_ImplSDL2_ProcessEvent(const SDL_Event* event);

UberEngine/vendor/ImGui/imgui_impl_sdlrenderer.cpp

@@ -42,7 +42,7 @@ struct ImGui_ImplSDLRenderer_Data
 {
     SDL_Renderer*   SDLRenderer;
     SDL_Texture*    FontTexture;
-    ImGui_ImplSDLRenderer_Data() { memset(this, 0, sizeof(*this)); }
+    ImGui_ImplSDLRenderer_Data() { memset((void*)this, 0, sizeof(*this)); }
 };
 
 // Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
@@ -210,7 +210,8 @@ bool ImGui_ImplSDLRenderer_CreateFontsTexture()
     io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);   // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
 
     // Upload texture to graphics system
-    bd->FontTexture = SDL_CreateTexture(bd->SDLRenderer, SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STATIC, width, height);
+    // (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
+    bd->FontTexture = SDL_CreateTexture(bd->SDLRenderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STATIC, width, height);
     if (bd->FontTexture == NULL)
     {
         SDL_Log("error creating texture");
@@ -218,6 +219,7 @@ bool ImGui_ImplSDLRenderer_CreateFontsTexture()
     }
     SDL_UpdateTexture(bd->FontTexture, NULL, pixels, 4 * width);
     SDL_SetTextureBlendMode(bd->FontTexture, SDL_BLENDMODE_BLEND);
+    SDL_SetTextureScaleMode(bd->FontTexture, SDL_ScaleModeLinear);
 
     // Store our identifier
     io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);

UberEngine/vendor/ImGui/imgui_internal.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.86
+// dear imgui, v1.88
 // (internal structures/api)
 
 // You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility!
@@ -18,6 +18,7 @@ Index of this file:
 // [SECTION] Generic helpers
 // [SECTION] ImDrawList support
 // [SECTION] Widgets support: flags, enums, data structures
+// [SECTION] Inputs support
 // [SECTION] Clipper support
 // [SECTION] Navigation support
 // [SECTION] Columns support
@@ -135,6 +136,7 @@ struct ImGuiTabBar;                 // Storage for a tab bar
 struct ImGuiTabItem;                // Storage for a tab item (within a tab bar)
 struct ImGuiTable;                  // Storage for a table
 struct ImGuiTableColumn;            // Storage for one column of a table
+struct ImGuiTableInstanceData;      // Storage for one instance of a same table
 struct ImGuiTableTempData;          // Temporary storage for one table (one per table in the stack), shared between tables.
 struct ImGuiTableSettings;          // Storage for a table .ini settings
 struct ImGuiTableColumnsSettings;   // Storage for a column .ini settings
@@ -145,6 +147,7 @@ struct ImGuiWindowSettings;         // Storage for a window .ini settings (we ke
 // Use your programming IDE "Go to definition" facility on the names of the center columns to find the actual flags/enum lists.
 typedef int ImGuiLayoutType;            // -> enum ImGuiLayoutType_         // Enum: Horizontal or vertical
 typedef int ImGuiActivateFlags;         // -> enum ImGuiActivateFlags_      // Flags: for navigation/focus function (will be for ActivateItem() later)
+typedef int ImGuiDebugLogFlags;         // -> enum ImGuiDebugLogFlags_      // Flags: for ShowDebugLogWindow(), g.DebugLogFlags
 typedef int ImGuiItemFlags;             // -> enum ImGuiItemFlags_          // Flags: for PushItemFlag()
 typedef int ImGuiItemStatusFlags;       // -> enum ImGuiItemStatusFlags_    // Flags: for DC.LastItemStatusFlags
 typedef int ImGuiOldColumnFlags;        // -> enum ImGuiOldColumnFlags_     // Flags: for BeginColumns()
@@ -191,23 +194,26 @@ namespace ImStb
 // [SECTION] Macros
 //-----------------------------------------------------------------------------
 
-// Debug Logging
-#ifndef IMGUI_DEBUG_LOG
-#define IMGUI_DEBUG_LOG(_FMT,...)       printf("[%05d] " _FMT, GImGui->FrameCount, __VA_ARGS__)
+// Debug Printing Into TTY
+// (since IMGUI_VERSION_NUM >= 18729: IMGUI_DEBUG_LOG was reworked into IMGUI_DEBUG_PRINTF (and removed framecount from it). If you were using a #define IMGUI_DEBUG_LOG please rename)
+#ifndef IMGUI_DEBUG_PRINTF
+#ifndef IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS
+#define IMGUI_DEBUG_PRINTF(_FMT,...)    printf(_FMT, __VA_ARGS__)
+#else
+#define IMGUI_DEBUG_PRINTF(_FMT,...)
+#endif
 #endif
 
-// Debug Logging for selected systems. Remove the '((void)0) //' to enable.
-//#define IMGUI_DEBUG_LOG_POPUP         IMGUI_DEBUG_LOG // Enable log
-//#define IMGUI_DEBUG_LOG_NAV           IMGUI_DEBUG_LOG // Enable log
-#define IMGUI_DEBUG_LOG_POPUP(...)      ((void)0)       // Disable log
-#define IMGUI_DEBUG_LOG_NAV(...)        ((void)0)       // Disable log
+// Debug Logging for ShowDebugLogWindow(). This is designed for relatively rare events so please don't spam.
+#define IMGUI_DEBUG_LOG(...)            ImGui::DebugLog(__VA_ARGS__);
+#define IMGUI_DEBUG_LOG_ACTIVEID(...)   do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventActiveId) IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
+#define IMGUI_DEBUG_LOG_FOCUS(...)      do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventFocus)    IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
+#define IMGUI_DEBUG_LOG_POPUP(...)      do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventPopup)    IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
+#define IMGUI_DEBUG_LOG_NAV(...)        do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventNav)      IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
+#define IMGUI_DEBUG_LOG_IO(...)         do { if (g.DebugLogFlags & ImGuiDebugLogFlags_EventIO)       IMGUI_DEBUG_LOG(__VA_ARGS__); } while (0)
 
 // Static Asserts
-#if (__cplusplus >= 201100) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201100)
 #define IM_STATIC_ASSERT(_COND)         static_assert(_COND, "")
-#else
-#define IM_STATIC_ASSERT(_COND)         typedef char static_assertion_##__line__[(_COND)?1:-1]
-#endif
 
 // "Paranoid" Debug Asserts are meant to only be enabled during specific debugging/work, otherwise would slow down the code too much.
 // We currently don't have many of those so the effect is currently negligible, but onward intent to add more aggressive ones in the code.
@@ -232,7 +238,7 @@ namespace ImStb
 #define IM_NEWLINE                      "\n"
 #endif
 #define IM_TABSIZE                      (4)
-#define IM_MEMALIGN(_OFF,_ALIGN)        (((_OFF) + (_ALIGN - 1)) & ~(_ALIGN - 1))               // Memory align e.g. IM_ALIGN(0,4)=0, IM_ALIGN(1,4)=4, IM_ALIGN(4,4)=4, IM_ALIGN(5,4)=8
+#define IM_MEMALIGN(_OFF,_ALIGN)        (((_OFF) + ((_ALIGN) - 1)) & ~((_ALIGN) - 1))           // Memory align e.g. IM_ALIGN(0,4)=0, IM_ALIGN(1,4)=4, IM_ALIGN(4,4)=4, IM_ALIGN(5,4)=8
 #define IM_F32_TO_INT8_UNBOUND(_VAL)    ((int)((_VAL) * 255.0f + ((_VAL)>=0 ? 0.5f : -0.5f)))   // Unsaturated, for display purpose
 #define IM_F32_TO_INT8_SAT(_VAL)        ((int)(ImSaturate(_VAL) * 255.0f + 0.5f))               // Saturated, always output 0..255
 #define IM_FLOOR(_VAL)                  ((float)(int)(_VAL))                                    // ImFloor() is not inlined in MSVC debug builds
@@ -279,7 +285,8 @@ namespace ImStb
 // - Helpers: Hashing
 // - Helpers: Sorting
 // - Helpers: Bit manipulation
-// - Helpers: String, Formatting
+// - Helpers: String
+// - Helpers: Formatting
 // - Helpers: UTF-8 <> wchar conversions
 // - Helpers: ImVec2/ImVec4 operators
 // - Helpers: Maths
@@ -297,9 +304,6 @@ namespace ImStb
 // Helpers: Hashing
 IMGUI_API ImGuiID       ImHashData(const void* data, size_t data_size, ImU32 seed = 0);
 IMGUI_API ImGuiID       ImHashStr(const char* data, size_t data_size = 0, ImU32 seed = 0);
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-static inline ImGuiID   ImHash(const void* data, int size, ImU32 seed = 0) { return size ? ImHashData(data, (size_t)size, seed) : ImHashStr((const char*)data, 0, seed); } // [moved to ImHashStr/ImHashData in 1.68]
-#endif
 
 // Helpers: Sorting
 #ifndef ImQsort
@@ -314,7 +318,7 @@ static inline bool      ImIsPowerOfTwo(int v)           { return v != 0 && (v &
 static inline bool      ImIsPowerOfTwo(ImU64 v)         { return v != 0 && (v & (v - 1)) == 0; }
 static inline int       ImUpperPowerOfTwo(int v)        { v--; v |= v >> 1; v |= v >> 2; v |= v >> 4; v |= v >> 8; v |= v >> 16; v++; return v; }
 
-// Helpers: String, Formatting
+// Helpers: String
 IMGUI_API int           ImStricmp(const char* str1, const char* str2);
 IMGUI_API int           ImStrnicmp(const char* str1, const char* str2, size_t count);
 IMGUI_API void          ImStrncpy(char* dst, const char* src, size_t count);
@@ -327,14 +331,20 @@ IMGUI_API const ImWchar*ImStrbolW(const ImWchar* buf_mid_line, const ImWchar* bu
 IMGUI_API const char*   ImStristr(const char* haystack, const char* haystack_end, const char* needle, const char* needle_end);
 IMGUI_API void          ImStrTrimBlanks(char* str);
 IMGUI_API const char*   ImStrSkipBlank(const char* str);
+static inline bool      ImCharIsBlankA(char c)          { return c == ' ' || c == '\t'; }
+static inline bool      ImCharIsBlankW(unsigned int c)  { return c == ' ' || c == '\t' || c == 0x3000; }
+
+// Helpers: Formatting
 IMGUI_API int           ImFormatString(char* buf, size_t buf_size, const char* fmt, ...) IM_FMTARGS(3);
 IMGUI_API int           ImFormatStringV(char* buf, size_t buf_size, const char* fmt, va_list args) IM_FMTLIST(3);
+IMGUI_API void          ImFormatStringToTempBuffer(const char** out_buf, const char** out_buf_end, const char* fmt, ...) IM_FMTARGS(3);
+IMGUI_API void          ImFormatStringToTempBufferV(const char** out_buf, const char** out_buf_end, const char* fmt, va_list args) IM_FMTLIST(3);
 IMGUI_API const char*   ImParseFormatFindStart(const char* format);
 IMGUI_API const char*   ImParseFormatFindEnd(const char* format);
 IMGUI_API const char*   ImParseFormatTrimDecorations(const char* format, char* buf, size_t buf_size);
+IMGUI_API void          ImParseFormatSanitizeForPrinting(const char* fmt_in, char* fmt_out, size_t fmt_out_size);
+IMGUI_API const char*   ImParseFormatSanitizeForScanning(const char* fmt_in, char* fmt_out, size_t fmt_out_size);
 IMGUI_API int           ImParseFormatPrecision(const char* format, int default_value);
-static inline bool      ImCharIsBlankA(char c)          { return c == ' ' || c == '\t'; }
-static inline bool      ImCharIsBlankW(unsigned int c)  { return c == ' ' || c == '\t' || c == 0x3000; }
 
 // Helpers: UTF-8 <> wchar conversions
 IMGUI_API const char*   ImTextCharToUtf8(char out_buf[5], unsigned int c);                                                      // return out_buf
@@ -441,8 +451,9 @@ static inline float  ImLengthSqr(const ImVec2& lhs)
 static inline float  ImLengthSqr(const ImVec4& lhs)                             { return (lhs.x * lhs.x) + (lhs.y * lhs.y) + (lhs.z * lhs.z) + (lhs.w * lhs.w); }
 static inline float  ImInvLength(const ImVec2& lhs, float fail_value)           { float d = (lhs.x * lhs.x) + (lhs.y * lhs.y); if (d > 0.0f) return ImRsqrt(d); return fail_value; }
 static inline float  ImFloor(float f)                                           { return (float)(int)(f); }
-static inline float  ImFloorSigned(float f)                                     { return (float)((f >= 0 || (int)f == f) ? (int)f : (int)f - 1); } // Decent replacement for floorf()
+static inline float  ImFloorSigned(float f)                                     { return (float)((f >= 0 || (float)(int)f == f) ? (int)f : (int)f - 1); } // Decent replacement for floorf()
 static inline ImVec2 ImFloor(const ImVec2& v)                                   { return ImVec2((float)(int)(v.x), (float)(int)(v.y)); }
+static inline ImVec2 ImFloorSigned(const ImVec2& v)                             { return ImVec2(ImFloorSigned(v.x), ImFloorSigned(v.y)); }
 static inline int    ImModPositive(int a, int b)                                { return (a + b) % b; }
 static inline float  ImDot(const ImVec2& a, const ImVec2& b)                    { return a.x * b.x + a.y * b.y; }
 static inline ImVec2 ImRotate(const ImVec2& v, float cos_a, float sin_a)        { return ImVec2(v.x * cos_a - v.y * sin_a, v.x * sin_a + v.y * cos_a); }
@@ -469,17 +480,17 @@ IM_MSVC_RUNTIME_CHECKS_OFF
 struct ImVec1
 {
     float   x;
-    ImVec1()         { x = 0.0f; }
-    ImVec1(float _x) { x = _x; }
+    constexpr ImVec1()         : x(0.0f) { }
+    constexpr ImVec1(float _x) : x(_x) { }
 };
 
 // Helper: ImVec2ih (2D vector, half-size integer, for long-term packed storage)
 struct ImVec2ih
 {
     short   x, y;
-    ImVec2ih()                           { x = y = 0; }
-    ImVec2ih(short _x, short _y)         { x = _x; y = _y; }
-    explicit ImVec2ih(const ImVec2& rhs) { x = (short)rhs.x; y = (short)rhs.y; }
+    constexpr ImVec2ih()                           : x(0), y(0) {}
+    constexpr ImVec2ih(short _x, short _y)         : x(_x), y(_y) {}
+    constexpr explicit ImVec2ih(const ImVec2& rhs) : x((short)rhs.x), y((short)rhs.y) {}
 };
 
 // Helper: ImRect (2D axis aligned bounding-box)
@@ -489,10 +500,10 @@ struct IMGUI_API ImRect
     ImVec2      Min;    // Upper-left
     ImVec2      Max;    // Lower-right
 
-    ImRect()                                        : Min(0.0f, 0.0f), Max(0.0f, 0.0f)  {}
-    ImRect(const ImVec2& min, const ImVec2& max)    : Min(min), Max(max)                {}
-    ImRect(const ImVec4& v)                         : Min(v.x, v.y), Max(v.z, v.w)      {}
-    ImRect(float x1, float y1, float x2, float y2)  : Min(x1, y1), Max(x2, y2)          {}
+    constexpr ImRect()                                        : Min(0.0f, 0.0f), Max(0.0f, 0.0f)  {}
+    constexpr ImRect(const ImVec2& min, const ImVec2& max)    : Min(min), Max(max)                {}
+    constexpr ImRect(const ImVec4& v)                         : Min(v.x, v.y), Max(v.z, v.w)      {}
+    constexpr ImRect(float x1, float y1, float x2, float y2)  : Min(x1, y1), Max(x2, y2)          {}
 
     ImVec2      GetCenter() const                   { return ImVec2((Min.x + Max.x) * 0.5f, (Min.y + Max.y) * 0.5f); }
     ImVec2      GetSize() const                     { return ImVec2(Max.x - Min.x, Max.y - Min.y); }
@@ -540,17 +551,18 @@ inline void     ImBitArraySetBitRange(ImU32* arr, int n, int n2) // Works on ran
 
 // Helper: ImBitArray class (wrapper over ImBitArray functions)
 // Store 1-bit per value.
-template<int BITCOUNT>
-struct IMGUI_API ImBitArray
+template<int BITCOUNT, int OFFSET = 0>
+struct ImBitArray
 {
     ImU32           Storage[(BITCOUNT + 31) >> 5];
     ImBitArray()                                { ClearAllBits(); }
     void            ClearAllBits()              { memset(Storage, 0, sizeof(Storage)); }
     void            SetAllBits()                { memset(Storage, 255, sizeof(Storage)); }
-    bool            TestBit(int n) const        { IM_ASSERT(n < BITCOUNT); return ImBitArrayTestBit(Storage, n); }
-    void            SetBit(int n)               { IM_ASSERT(n < BITCOUNT); ImBitArraySetBit(Storage, n); }
-    void            ClearBit(int n)             { IM_ASSERT(n < BITCOUNT); ImBitArrayClearBit(Storage, n); }
-    void            SetBitRange(int n, int n2)  { ImBitArraySetBitRange(Storage, n, n2); } // Works on range [n..n2)
+    bool            TestBit(int n) const        { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return ImBitArrayTestBit(Storage, n); }
+    void            SetBit(int n)               { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArraySetBit(Storage, n); }
+    void            ClearBit(int n)             { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); ImBitArrayClearBit(Storage, n); }
+    void            SetBitRange(int n, int n2)  { n += OFFSET; n2 += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT && n2 > n && n2 <= BITCOUNT); ImBitArraySetBitRange(Storage, n, n2); } // Works on range [n..n2)
+    bool            operator[](int n) const     { n += OFFSET; IM_ASSERT(n >= 0 && n < BITCOUNT); return ImBitArrayTestBit(Storage, n); }
 };
 
 // Helper: ImBitVector
@@ -621,7 +633,7 @@ struct ImSpanAllocator
 // Honor constructor/destructor. Add/remove invalidate all pointers. Indexes have the same lifetime as the associated object.
 typedef int ImPoolIdx;
 template<typename T>
-struct IMGUI_API ImPool
+struct ImPool
 {
     ImVector<T>     Buf;        // Contiguous data
     ImGuiStorage    Map;        // ID->Index
@@ -658,7 +670,7 @@ struct IMGUI_API ImPool
 // We store the chunk size first, and align the final size on 4 bytes boundaries.
 // The tedious/zealous amount of casting is to avoid -Wcast-align warnings.
 template<typename T>
-struct IMGUI_API ImChunkStream
+struct ImChunkStream
 {
     ImVector<char>  Buf;
 
@@ -690,7 +702,6 @@ struct IMGUI_API ImChunkStream
 //
 // Rendering circles with an odd number of segments, while mathematically correct will produce
 // asymmetrical results on the raster grid. Therefore we're rounding N to next even number (7->8, 8->8, 9->10 etc.)
-//
 #define IM_ROUNDUP_TO_EVEN(_V)                                  ((((_V) + 1) / 2) * 2)
 #define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MIN                     4
 #define IM_DRAWLIST_CIRCLE_AUTO_SEGMENT_MAX                     512
@@ -774,9 +785,9 @@ enum ImGuiItemStatusFlags_
 
 #ifdef IMGUI_ENABLE_TEST_ENGINE
     , // [imgui_tests only]
-    ImGuiItemStatusFlags_Openable           = 1 << 20,  //
+    ImGuiItemStatusFlags_Openable           = 1 << 20,  // Item is an openable (e.g. TreeNode)
     ImGuiItemStatusFlags_Opened             = 1 << 21,  //
-    ImGuiItemStatusFlags_Checkable          = 1 << 22,  //
+    ImGuiItemStatusFlags_Checkable          = 1 << 22,  // Item is a checkable (e.g. CheckBox, MenuItem)
     ImGuiItemStatusFlags_Checked            = 1 << 23   //
 #endif
 };
@@ -897,28 +908,6 @@ enum ImGuiPlotType
     ImGuiPlotType_Histogram
 };
 
-enum ImGuiInputSource
-{
-    ImGuiInputSource_None = 0,
-    ImGuiInputSource_Mouse,
-    ImGuiInputSource_Keyboard,
-    ImGuiInputSource_Gamepad,
-    ImGuiInputSource_Nav,               // Stored in g.ActiveIdSource only
-    ImGuiInputSource_Clipboard,         // Currently only used by InputText()
-    ImGuiInputSource_COUNT
-};
-
-// FIXME-NAV: Clarify/expose various repeat delay/rate
-enum ImGuiInputReadMode
-{
-    ImGuiInputReadMode_Down,
-    ImGuiInputReadMode_Pressed,
-    ImGuiInputReadMode_Released,
-    ImGuiInputReadMode_Repeat,
-    ImGuiInputReadMode_RepeatSlow,
-    ImGuiInputReadMode_RepeatFast
-};
-
 enum ImGuiPopupPositionPolicy
 {
     ImGuiPopupPositionPolicy_Default,
@@ -1055,12 +1044,13 @@ struct ImGuiPopupData
     ImGuiID             PopupId;        // Set on OpenPopup()
     ImGuiWindow*        Window;         // Resolved on BeginPopup() - may stay unresolved if user never calls OpenPopup()
     ImGuiWindow*        SourceWindow;   // Set on OpenPopup() copy of NavWindow at the time of opening the popup
+    int                 ParentNavLayer; // Resolved on BeginPopup(). Actually a ImGuiNavLayer type (declared down below), initialized to -1 which is not part of an enum, but serves well-enough as "not any of layers" value
     int                 OpenFrameCount; // Set on OpenPopup()
     ImGuiID             OpenParentId;   // Set on OpenPopup(), we need this to differentiate multiple menu sets from each others (e.g. inside menu bar vs loose menu items)
     ImVec2              OpenPopupPos;   // Set on OpenPopup(), preferred popup position (typically == OpenMousePos when using mouse)
     ImVec2              OpenMousePos;   // Set on OpenPopup(), copy of mouse position at the time of opening popup
 
-    ImGuiPopupData()    { memset(this, 0, sizeof(*this)); OpenFrameCount = -1; }
+    ImGuiPopupData()    { memset(this, 0, sizeof(*this)); ParentNavLayer = OpenFrameCount = -1; }
 };
 
 enum ImGuiNextWindowDataFlags_
@@ -1160,6 +1150,7 @@ struct ImGuiShrinkWidthItem
 {
     int         Index;
     float       Width;
+    float       InitialWidth;
 };
 
 struct ImGuiPtrOrIndex
@@ -1171,6 +1162,81 @@ struct ImGuiPtrOrIndex
     ImGuiPtrOrIndex(int index)  { Ptr = NULL; Index = index; }
 };
 
+//-----------------------------------------------------------------------------
+// [SECTION] Inputs support
+//-----------------------------------------------------------------------------
+
+typedef ImBitArray<ImGuiKey_NamedKey_COUNT, -ImGuiKey_NamedKey_BEGIN>    ImBitArrayForNamedKeys;
+
+enum ImGuiKeyPrivate_
+{
+    ImGuiKey_LegacyNativeKey_BEGIN  = 0,
+    ImGuiKey_LegacyNativeKey_END    = 512,
+    ImGuiKey_Gamepad_BEGIN          = ImGuiKey_GamepadStart,
+    ImGuiKey_Gamepad_END            = ImGuiKey_GamepadRStickRight + 1
+};
+
+enum ImGuiInputEventType
+{
+    ImGuiInputEventType_None = 0,
+    ImGuiInputEventType_MousePos,
+    ImGuiInputEventType_MouseWheel,
+    ImGuiInputEventType_MouseButton,
+    ImGuiInputEventType_Key,
+    ImGuiInputEventType_Text,
+    ImGuiInputEventType_Focus,
+    ImGuiInputEventType_COUNT
+};
+
+enum ImGuiInputSource
+{
+    ImGuiInputSource_None = 0,
+    ImGuiInputSource_Mouse,
+    ImGuiInputSource_Keyboard,
+    ImGuiInputSource_Gamepad,
+    ImGuiInputSource_Clipboard,     // Currently only used by InputText()
+    ImGuiInputSource_Nav,           // Stored in g.ActiveIdSource only
+    ImGuiInputSource_COUNT
+};
+
+// FIXME: Structures in the union below need to be declared as anonymous unions appears to be an extension?
+// Using ImVec2() would fail on Clang 'union member 'MousePos' has a non-trivial default constructor'
+struct ImGuiInputEventMousePos      { float PosX, PosY; };
+struct ImGuiInputEventMouseWheel    { float WheelX, WheelY; };
+struct ImGuiInputEventMouseButton   { int Button; bool Down; };
+struct ImGuiInputEventKey           { ImGuiKey Key; bool Down; float AnalogValue; };
+struct ImGuiInputEventText          { unsigned int Char; };
+struct ImGuiInputEventAppFocused    { bool Focused; };
+
+struct ImGuiInputEvent
+{
+    ImGuiInputEventType             Type;
+    ImGuiInputSource                Source;
+    union
+    {
+        ImGuiInputEventMousePos     MousePos;       // if Type == ImGuiInputEventType_MousePos
+        ImGuiInputEventMouseWheel   MouseWheel;     // if Type == ImGuiInputEventType_MouseWheel
+        ImGuiInputEventMouseButton  MouseButton;    // if Type == ImGuiInputEventType_MouseButton
+        ImGuiInputEventKey          Key;            // if Type == ImGuiInputEventType_Key
+        ImGuiInputEventText         Text;           // if Type == ImGuiInputEventType_Text
+        ImGuiInputEventAppFocused   AppFocused;     // if Type == ImGuiInputEventType_Focus
+    };
+    bool                            AddedByTestEngine;
+
+    ImGuiInputEvent() { memset(this, 0, sizeof(*this)); }
+};
+
+// FIXME-NAV: Clarify/expose various repeat delay/rate
+enum ImGuiNavReadMode
+{
+    ImGuiNavReadMode_Down,
+    ImGuiNavReadMode_Pressed,
+    ImGuiNavReadMode_Released,
+    ImGuiNavReadMode_Repeat,
+    ImGuiNavReadMode_RepeatSlow,
+    ImGuiNavReadMode_RepeatFast
+};
+
 //-----------------------------------------------------------------------------
 // [SECTION] Clipper support
 //-----------------------------------------------------------------------------
@@ -1239,7 +1305,7 @@ enum ImGuiNavHighlightFlags_
 enum ImGuiNavDirSourceFlags_
 {
     ImGuiNavDirSourceFlags_None             = 0,
-    ImGuiNavDirSourceFlags_RawKeyboard      = 1 << 0,   // Raw keyboard (not pulled from nav), faciliate use of some functions before we can unify nav and keys
+    ImGuiNavDirSourceFlags_RawKeyboard      = 1 << 0,   // Raw keyboard (not pulled from nav), facilitate use of some functions before we can unify nav and keys
     ImGuiNavDirSourceFlags_Keyboard         = 1 << 1,
     ImGuiNavDirSourceFlags_PadDPad          = 1 << 2,
     ImGuiNavDirSourceFlags_PadLStick        = 1 << 3
@@ -1427,8 +1493,22 @@ struct ImGuiSettingsHandler
 // [SECTION] Metrics, Debug Tools
 //-----------------------------------------------------------------------------
 
+enum ImGuiDebugLogFlags_
+{
+    // Event types
+    ImGuiDebugLogFlags_None             = 0,
+    ImGuiDebugLogFlags_EventActiveId    = 1 << 0,
+    ImGuiDebugLogFlags_EventFocus       = 1 << 1,
+    ImGuiDebugLogFlags_EventPopup       = 1 << 2,
+    ImGuiDebugLogFlags_EventNav         = 1 << 3,
+    ImGuiDebugLogFlags_EventIO          = 1 << 4,
+    ImGuiDebugLogFlags_EventMask_       = ImGuiDebugLogFlags_EventActiveId  | ImGuiDebugLogFlags_EventFocus | ImGuiDebugLogFlags_EventPopup | ImGuiDebugLogFlags_EventNav | ImGuiDebugLogFlags_EventIO,
+    ImGuiDebugLogFlags_OutputToTTY      = 1 << 10   // Also send output to TTY
+};
+
 struct ImGuiMetricsConfig
 {
+    bool        ShowDebugLog;
     bool        ShowStackTool;
     bool        ShowWindowsRects;
     bool        ShowWindowsBeginOrder;
@@ -1440,14 +1520,10 @@ struct ImGuiMetricsConfig
 
     ImGuiMetricsConfig()
     {
-        ShowStackTool = false;
-        ShowWindowsRects = false;
-        ShowWindowsBeginOrder = false;
-        ShowTablesRects = false;
+        ShowDebugLog = ShowStackTool = ShowWindowsRects = ShowWindowsBeginOrder = ShowTablesRects = false;
         ShowDrawCmdMesh = true;
         ShowDrawCmdBoundingBoxes = true;
-        ShowWindowsRectsType = -1;
-        ShowTablesRectsType = -1;
+        ShowWindowsRectsType = ShowTablesRectsType = -1;
     }
 };
 
@@ -1456,7 +1532,8 @@ struct ImGuiStackLevelInfo
     ImGuiID                 ID;
     ImS8                    QueryFrameCount;            // >= 1: Query in progress
     bool                    QuerySuccess;               // Obtained result from DebugHookIdInfo()
-    char                    Desc[58];                   // Arbitrarily sized buffer to hold a result (FIXME: could replace Results[] with a chunk stream?)
+    ImGuiDataType           DataType : 8;
+    char                    Desc[57];                   // Arbitrarily sized buffer to hold a result (FIXME: could replace Results[] with a chunk stream?) FIXME: Now that we added CTRL+C this should be fixed.
 
     ImGuiStackLevelInfo()   { memset(this, 0, sizeof(*this)); }
 };
@@ -1468,8 +1545,10 @@ struct ImGuiStackTool
     int                     StackLevel;                 // -1: query stack and resize Results, >= 0: individual stack level
     ImGuiID                 QueryId;                    // ID to query details for
     ImVector<ImGuiStackLevelInfo> Results;
+    bool                    CopyToClipboardOnCtrlC;
+    float                   CopyToClipboardLastTime;
 
-    ImGuiStackTool()        { memset(this, 0, sizeof(*this)); }
+    ImGuiStackTool()        { memset(this, 0, sizeof(*this)); CopyToClipboardLastTime = -FLT_MAX; }
 };
 
 //-----------------------------------------------------------------------------
@@ -1491,7 +1570,7 @@ struct ImGuiContextHook
 };
 
 //-----------------------------------------------------------------------------
-// [SECTION] ImGuiContext (main imgui context)
+// [SECTION] ImGuiContext (main Dear ImGui context)
 //-----------------------------------------------------------------------------
 
 struct ImGuiContext
@@ -1499,6 +1578,8 @@ struct ImGuiContext
     bool                    Initialized;
     bool                    FontAtlasOwnedByContext;            // IO.Fonts-> is owned by the ImGuiContext and will be destructed along with it.
     ImGuiIO                 IO;
+    ImVector<ImGuiInputEvent> InputEventsQueue;                 // Input events which will be tricked/written into IO structure.
+    ImVector<ImGuiInputEvent> InputEventsTrail;                 // Past input events processed in NewFrame(). This is to allow domain-specific application to access e.g mouse/pen trail.
     ImGuiStyle              Style;
     ImFont*                 Font;                               // (Shortcut) == FontStack.empty() ? IO.Font : FontStack.back()
     float                   FontSize;                           // (Shortcut) == FontBaseSize * g.CurrentWindow->FontWindowScale == window->FontSize(). Text height for current window.
@@ -1550,10 +1631,6 @@ struct ImGuiContext
     bool                    ActiveIdHasBeenPressedBefore;       // Track whether the active id led to a press (this is to allow changing between PressOnClick and PressOnRelease without pressing twice). Used by range_select branch.
     bool                    ActiveIdHasBeenEditedBefore;        // Was the value associated to the widget Edited over the course of the Active state.
     bool                    ActiveIdHasBeenEditedThisFrame;
-    bool                    ActiveIdUsingMouseWheel;            // Active widget will want to read mouse wheel. Blocks scrolling the underlying window.
-    ImU32                   ActiveIdUsingNavDirMask;            // Active widget will want to read those nav move requests (e.g. can activate a button and move away from it)
-    ImU32                   ActiveIdUsingNavInputMask;          // Active widget will want to read those nav inputs.
-    ImU64                   ActiveIdUsingKeyInputMask;          // Active widget will want to read those key inputs. When we grow the ImGuiKey enum we'll need to either to order the enum to make useful keys come first, either redesign this into e.g. a small array.
     ImVec2                  ActiveIdClickOffset;                // Clicked offset from upper-left corner, if applicable (currently only set by ButtonBehavior)
     ImGuiWindow*            ActiveIdWindow;
     ImGuiInputSource        ActiveIdSource;                     // Activating with mouse or nav (gamepad/keyboard)
@@ -1565,6 +1642,12 @@ struct ImGuiContext
     ImGuiID                 LastActiveId;                       // Store the last non-zero ActiveId, useful for animation.
     float                   LastActiveIdTimer;                  // Store the last non-zero ActiveId timer since the beginning of activation, useful for animation.
 
+    // Input Ownership
+    bool                    ActiveIdUsingMouseWheel;            // Active widget will want to read mouse wheel. Blocks scrolling the underlying window.
+    ImU32                   ActiveIdUsingNavDirMask;            // Active widget will want to read those nav move requests (e.g. can activate a button and move away from it)
+    ImU32                   ActiveIdUsingNavInputMask;          // Active widget will want to read those nav inputs.
+    ImBitArrayForNamedKeys  ActiveIdUsingKeyInputMask;          // Active widget will want to read those key inputs. When we grow the ImGuiKey enum we'll need to either to order the enum to make useful keys come first, either redesign this into e.g. a small array.
+
     // Next window/item data
     ImGuiItemFlags          CurrentItemFlags;                      // == g.ItemFlagsStack.back()
     ImGuiNextItemData       NextItemData;                       // Storage for SetNextItem** functions
@@ -1586,7 +1669,7 @@ struct ImGuiContext
     ImVector<ImGuiViewportP*> Viewports;                        // Active viewports (Size==1 in 'master' branch). Each viewports hold their copy of ImDrawData.
 
     // Gamepad/keyboard Navigation
-    ImGuiWindow*            NavWindow;                          // Focused window for navigation. Could be called 'FocusWindow'
+    ImGuiWindow*            NavWindow;                          // Focused window for navigation. Could be called 'FocusedWindow'
     ImGuiID                 NavId;                              // Focused item for navigation
     ImGuiID                 NavFocusScopeId;                    // Identify a selection scope (selection code often wants to "clear other items" when landing on an item of the selection set)
     ImGuiID                 NavActivateId;                      // ~~ (g.ActiveId == 0) && IsNavInputPressed(ImGuiNavInput_Activate) ? NavId : 0, also set when calling ActivateItem()
@@ -1596,7 +1679,7 @@ struct ImGuiContext
     ImGuiActivateFlags      NavActivateFlags;
     ImGuiID                 NavJustMovedToId;                   // Just navigated to this id (result of a successfully MoveRequest).
     ImGuiID                 NavJustMovedToFocusScopeId;         // Just navigated to this focus scope id (result of a successfully MoveRequest).
-    ImGuiKeyModFlags        NavJustMovedToKeyMods;
+    ImGuiModFlags           NavJustMovedToKeyMods;
     ImGuiID                 NavNextActivateId;                  // Set by ActivateItem(), queued until next frame.
     ImGuiActivateFlags      NavNextActivateFlags;
     ImGuiInputSource        NavInputSource;                     // Keyboard or Gamepad mode? THIS WILL ONLY BE None or NavGamepad or NavKeyboard.
@@ -1617,7 +1700,7 @@ struct ImGuiContext
     bool                    NavMoveForwardToNextFrame;
     ImGuiNavMoveFlags       NavMoveFlags;
     ImGuiScrollFlags        NavMoveScrollFlags;
-    ImGuiKeyModFlags        NavMoveKeyMods;
+    ImGuiModFlags           NavMoveKeyMods;
     ImGuiDir                NavMoveDir;                         // Direction of the move request (left/right/up/down)
     ImGuiDir                NavMoveDirForDebug;
     ImGuiDir                NavMoveClipDir;                     // FIXME-NAV: Describe the purpose of this better. Might want to rename?
@@ -1666,7 +1749,7 @@ struct ImGuiContext
     int                             ClipperTempDataStacked;
     ImVector<ImGuiListClipperData>  ClipperTempData;
 
-    // Table
+    // Tables
     ImGuiTable*                     CurrentTable;
     int                             TablesTempDataStacked;      // Temporary table data size (because we leave previous instances undestructed, we generally don't use TablesTempData.Size)
     ImVector<ImGuiTableTempData>    TablesTempData;             // Temporary table data (buffers reused/shared across instances, support nesting)
@@ -1691,6 +1774,7 @@ struct ImGuiContext
     ImU32                   ColorEditLastColor;                 // RGB value with alpha set to 0.
     ImVec4                  ColorPickerRef;                     // Initial/reference color at the time of opening the color picker.
     ImGuiComboPreviewData   ComboPreviewData;
+    float                   SliderGrabClickOffset;
     float                   SliderCurrentAccum;                 // Accumulated slider delta when using navigation controls.
     bool                    SliderCurrentAccumDirty;            // Has the accumulated slider delta changed since last time we tried to apply it?
     bool                    DragCurrentAccumDirty;
@@ -1705,8 +1789,8 @@ struct ImGuiContext
     ImVector<ImGuiID>       MenusIdSubmittedThisFrame;          // A list of menu IDs that were rendered at least once
 
     // Platform support
-    ImVec2                  PlatformImePos;                     // Cursor position request & last passed to the OS Input Method Editor
-    ImVec2                  PlatformImeLastPos;
+    ImGuiPlatformImeData    PlatformImeData;                    // Data updated by current frame
+    ImGuiPlatformImeData    PlatformImeDataPrev;                // Previous frame data (when changing we will call io.SetPlatformImeDataFn
     char                    PlatformLocaleDecimalPoint;         // '.' or *localeconv()->decimal_point
 
     // Settings
@@ -1733,6 +1817,8 @@ struct ImGuiContext
     int                     LogDepthToExpandDefault;            // Default/stored value for LogDepthMaxExpand if not specified in the LogXXX function call.
 
     // Debug Tools
+    ImGuiDebugLogFlags      DebugLogFlags;
+    ImGuiTextBuffer         DebugLogBuf;
     bool                    DebugItemPickerActive;              // Item picker is active (started with DebugStartItemPicker())
     ImGuiID                 DebugItemPickerBreakId;             // Will call IM_DEBUG_BREAK() when encountering this ID
     ImGuiMetricsConfig      DebugMetricsConfig;
@@ -1743,10 +1829,10 @@ struct ImGuiContext
     int                     FramerateSecPerFrameIdx;
     int                     FramerateSecPerFrameCount;
     float                   FramerateSecPerFrameAccum;
-    int                     WantCaptureMouseNextFrame;          // Explicit capture via CaptureKeyboardFromApp()/CaptureMouseFromApp() sets those flags
-    int                     WantCaptureKeyboardNextFrame;
+    int                     WantCaptureMouseNextFrame;          // Explicit capture override via SetNextFrameWantCaptureMouse()/SetNextFrameWantCaptureKeyboard(). Default to -1.
+    int                     WantCaptureKeyboardNextFrame;       // "
     int                     WantTextInputNextFrame;
-    char                    TempBuffer[1024 * 3 + 1];           // Temporary text buffer
+    ImVector<char>          TempBuffer;                         // Temporary text buffer
 
     ImGuiContext(ImFontAtlas* shared_font_atlas)
     {
@@ -1786,10 +1872,6 @@ struct ImGuiContext
         ActiveIdHasBeenPressedBefore = false;
         ActiveIdHasBeenEditedBefore = false;
         ActiveIdHasBeenEditedThisFrame = false;
-        ActiveIdUsingMouseWheel = false;
-        ActiveIdUsingNavDirMask = 0x00;
-        ActiveIdUsingNavInputMask = 0x00;
-        ActiveIdUsingKeyInputMask = 0x00;
         ActiveIdClickOffset = ImVec2(-1, -1);
         ActiveIdWindow = NULL;
         ActiveIdSource = ImGuiInputSource_None;
@@ -1801,6 +1883,11 @@ struct ImGuiContext
         LastActiveId = 0;
         LastActiveIdTimer = 0.0f;
 
+        ActiveIdUsingMouseWheel = false;
+        ActiveIdUsingNavDirMask = 0x00;
+        ActiveIdUsingNavInputMask = 0x00;
+        ActiveIdUsingKeyInputMask.ClearAllBits();
+
         CurrentItemFlags = ImGuiItemFlags_None;
         BeginMenuCount = 0;
 
@@ -1808,7 +1895,7 @@ struct ImGuiContext
         NavId = NavFocusScopeId = NavActivateId = NavActivateDownId = NavActivatePressedId = NavActivateInputId = 0;
         NavJustMovedToId = NavJustMovedToFocusScopeId = NavNextActivateId = 0;
         NavActivateFlags = NavNextActivateFlags = ImGuiActivateFlags_None;
-        NavJustMovedToKeyMods = ImGuiKeyModFlags_None;
+        NavJustMovedToKeyMods = ImGuiModFlags_None;
         NavInputSource = ImGuiInputSource_None;
         NavLayer = ImGuiNavLayer_Main;
         NavIdIsAlive = false;
@@ -1824,7 +1911,7 @@ struct ImGuiContext
         NavMoveForwardToNextFrame = false;
         NavMoveFlags = ImGuiNavMoveFlags_None;
         NavMoveScrollFlags = ImGuiScrollFlags_None;
-        NavMoveKeyMods = ImGuiKeyModFlags_None;
+        NavMoveKeyMods = ImGuiModFlags_None;
         NavMoveDir = NavMoveDirForDebug = NavMoveClipDir = ImGuiDir_None;
         NavScoringDebugCount = 0;
         NavTabbingDir = 0;
@@ -1859,6 +1946,7 @@ struct ImGuiContext
         ColorEditOptions = ImGuiColorEditFlags_DefaultOptions_;
         ColorEditLastHue = ColorEditLastSat = 0.0f;
         ColorEditLastColor = 0;
+        SliderGrabClickOffset = 0.0f;
         SliderCurrentAccum = 0.0f;
         SliderCurrentAccumDirty = false;
         DragCurrentAccumDirty = false;
@@ -1870,7 +1958,8 @@ struct ImGuiContext
         TooltipOverrideCount = 0;
         TooltipSlowDelay = 0.50f;
 
-        PlatformImePos = PlatformImeLastPos = ImVec2(FLT_MAX, FLT_MAX);
+        PlatformImeData.InputPos = ImVec2(0.0f, 0.0f);
+        PlatformImeDataPrev.InputPos = ImVec2(-1.0f, -1.0f); // Different to ensure initial submission
         PlatformLocaleDecimalPoint = '.';
 
         SettingsLoaded = false;
@@ -1886,6 +1975,7 @@ struct ImGuiContext
         LogDepthRef = 0;
         LogDepthToExpand = LogDepthToExpandDefault = 2;
 
+        DebugLogFlags = ImGuiDebugLogFlags_OutputToTTY;
         DebugItemPickerActive = false;
         DebugItemPickerBreakId = 0;
 
@@ -1893,7 +1983,6 @@ struct ImGuiContext
         FramerateSecPerFrameIdx = FramerateSecPerFrameCount = 0;
         FramerateSecPerFrameAccum = 0.0f;
         WantCaptureMouseNextFrame = WantCaptureKeyboardNextFrame = WantTextInputNextFrame = -1;
-        memset(TempBuffer, 0, sizeof(TempBuffer));
     }
 };
 
@@ -1916,6 +2005,7 @@ struct IMGUI_API ImGuiWindowTempData
     ImVec2                  PrevLineSize;
     float                   CurrLineTextBaseOffset; // Baseline offset (0.0f by default on a new line, generally == style.FramePadding.y when a framed item has been added).
     float                   PrevLineTextBaseOffset;
+    bool                    IsSameLine;
     ImVec1                  Indent;                 // Indentation / start position from left of window (increased by TreePush/TreePop, etc.)
     ImVec1                  ColumnsOffset;          // Offset to the current column (if ColumnsCurrent > 0). FIXME: This and the above should be a stack to allow use cases like Tree->Column->Tree. Need revamp columns API.
     ImVec1                  GroupOffset;
@@ -1956,6 +2046,7 @@ struct IMGUI_API ImGuiWindow
     char*                   Name;                               // Window name, owned by the window.
     ImGuiID                 ID;                                 // == ImHashStr(Name)
     ImGuiWindowFlags        Flags;                              // See enum ImGuiWindowFlags_
+    ImGuiViewportP*         Viewport;                           // Always set in Begin(). Inactive windows may have a NULL value here if their viewport was discarded.
     ImVec2                  Pos;                                // Position (always rounded-up to nearest pixel)
     ImVec2                  Size;                               // Current size (==SizeFull or collapsed title bar size)
     ImVec2                  SizeFull;                           // Size when non collapsed
@@ -2053,9 +2144,6 @@ public:
     ImGuiID     GetID(const char* str, const char* str_end = NULL);
     ImGuiID     GetID(const void* ptr);
     ImGuiID     GetID(int n);
-    ImGuiID     GetIDNoKeepAlive(const char* str, const char* str_end = NULL);
-    ImGuiID     GetIDNoKeepAlive(const void* ptr);
-    ImGuiID     GetIDNoKeepAlive(int n);
     ImGuiID     GetIDFromRectangle(const ImRect& r_abs);
 
     // We don't use g.FontSize because the window may be != g.CurrentWidow.
@@ -2097,6 +2185,7 @@ struct ImGuiTabItem
     float               Offset;                 // Position relative to beginning of tab
     float               Width;                  // Width currently displayed
     float               ContentWidth;           // Width of label, stored during BeginTabItem() call
+    float               RequestedWidth;         // Width optionally requested by caller, -1.0f is unused
     ImS32               NameOffset;             // When Window==NULL, offset to name within parent ImGuiTabBar::TabsNames
     ImS16               BeginOrder;             // BeginTabItem() order, used to re-order tabs after toggling ImGuiTabBarFlags_Reorderable
     ImS16               IndexDuringLayout;      // Index only used during TabBarLayout()
@@ -2230,6 +2319,15 @@ struct ImGuiTableCellData
     ImGuiTableColumnIdx         Column;     // Column number
 };
 
+// Per-instance data that needs preserving across frames (seemingly most others do not need to be preserved aside from debug needs, does that needs they could be moved to ImGuiTableTempData ?)
+struct ImGuiTableInstanceData
+{
+    float                       LastOuterHeight;            // Outer height from last frame // FIXME: multi-instance issue (#3955)
+    float                       LastFirstRowHeight;         // Height of first row from last frame // FIXME: possible multi-instance issue?
+
+    ImGuiTableInstanceData()    { LastOuterHeight = LastFirstRowHeight = 0.0f; }
+};
+
 // FIXME-TABLE: more transient data could be stored in a per-stacked table structure: DrawSplitter, SortSpecs, incoming RowData
 struct IMGUI_API ImGuiTable
 {
@@ -2272,11 +2370,10 @@ struct IMGUI_API ImGuiTable
     float                       CellPaddingY;
     float                       CellSpacingX1;              // Spacing between non-bordered cells
     float                       CellSpacingX2;
-    float                       LastOuterHeight;            // Outer height from last frame
-    float                       LastFirstRowHeight;         // Height of first row from last frame
     float                       InnerWidth;                 // User value passed to BeginTable(), see comments at the top of BeginTable() for details.
     float                       ColumnsGivenWidth;          // Sum of current column width
     float                       ColumnsAutoFitWidth;        // Sum of ideal column width in order nothing to be clipped, used for auto-fitting and content width submission in outer window
+    float                       ColumnsStretchSumWeights;   // Sum of weight of all enabled stretching columns
     float                       ResizedColumnNextWidth;
     float                       ResizeLockMinContentsX2;    // Lock minimum contents width while resizing down in order to not create feedback loops. But we allow growing the table.
     float                       RefScale;                   // Reference scale to be able to rescale columns on font/dpi changes.
@@ -2284,7 +2381,7 @@ struct IMGUI_API ImGuiTable
     ImRect                      InnerRect;                  // InnerRect but without decoration. As with OuterRect, for non-scrolling tables, InnerRect.Max.y is
     ImRect                      WorkRect;
     ImRect                      InnerClipRect;
-    ImRect                      BgClipRect;                 // We use this to cpu-clip cell background color fill
+    ImRect                      BgClipRect;                 // We use this to cpu-clip cell background color fill, evolve during the frame as we cross frozen rows boundaries
     ImRect                      Bg0ClipRectForDrawCmd;      // Actual ImDrawCmd clip rect for BG0/1 channel. This tends to be == OuterWindow->ClipRect at BeginTable() because output in BG0/BG1 is cpu-clipped
     ImRect                      Bg2ClipRectForDrawCmd;      // Actual ImDrawCmd clip rect for BG2 channel. This tends to be a correct, tight-fit, because output to BG2 are done by widgets relying on regular ClipRect.
     ImRect                      HostClipRect;               // This is used to check if we can eventually merge our columns draw calls into the current draw call of the current window.
@@ -2293,6 +2390,8 @@ struct IMGUI_API ImGuiTable
     ImGuiWindow*                InnerWindow;                // Window holding the table data (== OuterWindow or a child window)
     ImGuiTextBuffer             ColumnsNames;               // Contiguous buffer holding columns names
     ImDrawListSplitter*         DrawSplitter;               // Shortcut to TempData->DrawSplitter while in table. Isolate draw commands per columns to avoid switching clip rect constantly
+    ImGuiTableInstanceData      InstanceDataFirst;
+    ImVector<ImGuiTableInstanceData>    InstanceDataExtra;  // FIXME-OPT: Using a small-vector pattern would be good.
     ImGuiTableColumnSortSpecs   SortSpecsSingle;
     ImVector<ImGuiTableColumnSortSpecs> SortSpecsMulti;     // FIXME-OPT: Using a small-vector pattern would be good.
     ImGuiTableSortSpecs         SortSpecs;                  // Public facing sorts specs, this is what we return in TableGetSortSpecs()
@@ -2449,10 +2548,11 @@ namespace ImGui
     IMGUI_API ImDrawList*   GetForegroundDrawList(ImGuiViewport* viewport);                     // get foreground draw list for the given viewport. this draw list will be the last rendered one. Useful to quickly draw shapes/text over dear imgui contents.
 
     // Init
-    IMGUI_API void          Initialize(ImGuiContext* context);
-    IMGUI_API void          Shutdown(ImGuiContext* context);    // Since 1.60 this is a _private_ function. You can call DestroyContext() to destroy the context created by CreateContext().
+    IMGUI_API void          Initialize();
+    IMGUI_API void          Shutdown();    // Since 1.60 this is a _private_ function. You can call DestroyContext() to destroy the context created by CreateContext().
 
     // NewFrame
+    IMGUI_API void          UpdateInputEvents(bool trickle_fast_inputs);
     IMGUI_API void          UpdateHoveredWindowAndCaptureFlags();
     IMGUI_API void          StartMouseMovingWindow(ImGuiWindow* window);
     IMGUI_API void          UpdateMouseMovingWindowNewFrame();
@@ -2463,6 +2563,9 @@ namespace ImGui
     IMGUI_API void          RemoveContextHook(ImGuiContext* context, ImGuiID hook_to_remove);
     IMGUI_API void          CallContextHooks(ImGuiContext* context, ImGuiContextHookType type);
 
+    // Viewports
+    IMGUI_API void          SetWindowViewport(ImGuiWindow* window, ImGuiViewportP* viewport);
+
     // Settings
     IMGUI_API void                  MarkIniSettingsDirty();
     IMGUI_API void                  MarkIniSettingsDirty(ImGuiWindow* window);
@@ -2470,6 +2573,8 @@ namespace ImGui
     IMGUI_API ImGuiWindowSettings*  CreateNewWindowSettings(const char* name);
     IMGUI_API ImGuiWindowSettings*  FindWindowSettings(ImGuiID id);
     IMGUI_API ImGuiWindowSettings*  FindOrCreateWindowSettings(const char* name);
+    IMGUI_API void                  AddSettingsHandler(const ImGuiSettingsHandler* handler);
+    IMGUI_API void                  RemoveSettingsHandler(const char* type_name);
     IMGUI_API ImGuiSettingsHandler* FindSettingsHandler(const char* type_name);
 
     // Scrolling
@@ -2505,7 +2610,7 @@ namespace ImGui
 
     // Basic Helpers for widget code
     IMGUI_API void          ItemSize(const ImVec2& size, float text_baseline_y = -1.0f);
-    IMGUI_API void          ItemSize(const ImRect& bb, float text_baseline_y = -1.0f);
+    inline void             ItemSize(const ImRect& bb, float text_baseline_y = -1.0f) { ItemSize(bb.GetSize(), text_baseline_y); } // FIXME: This is a misleading API since we expect CursorPos to be bb.Min.
     IMGUI_API bool          ItemAdd(const ImRect& bb, ImGuiID id, const ImRect* nav_bb = NULL, ImGuiItemFlags extra_flags = 0);
     IMGUI_API bool          ItemHoverable(const ImRect& bb, ImGuiID id);
     IMGUI_API bool          IsClippedEx(const ImRect& bb, ImGuiID id);
@@ -2573,10 +2678,12 @@ namespace ImGui
     IMGUI_API void          NavMoveRequestCancel();
     IMGUI_API void          NavMoveRequestApplyResult();
     IMGUI_API void          NavMoveRequestTryWrapping(ImGuiWindow* window, ImGuiNavMoveFlags move_flags);
-    IMGUI_API float         GetNavInputAmount(ImGuiNavInput n, ImGuiInputReadMode mode);
-    IMGUI_API ImVec2        GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiInputReadMode mode, float slow_factor = 0.0f, float fast_factor = 0.0f);
+    IMGUI_API const char*   GetNavInputName(ImGuiNavInput n);
+    IMGUI_API float         GetNavInputAmount(ImGuiNavInput n, ImGuiNavReadMode mode);
+    IMGUI_API ImVec2        GetNavInputAmount2d(ImGuiNavDirSourceFlags dir_sources, ImGuiNavReadMode mode, float slow_factor = 0.0f, float fast_factor = 0.0f);
     IMGUI_API int           CalcTypematicRepeatAmount(float t0, float t1, float repeat_delay, float repeat_rate);
     IMGUI_API void          ActivateItem(ImGuiID id);   // Remotely activate a button, checkbox, tree node etc. given its unique ID. activation is queued and processed on the next frame when the item is encountered again.
+    IMGUI_API void          SetNavWindow(ImGuiWindow* window);
     IMGUI_API void          SetNavID(ImGuiID id, ImGuiNavLayer nav_layer, ImGuiID focus_scope_id, const ImRect& rect_rel);
 
     // Focus Scope (WIP)
@@ -2589,18 +2696,26 @@ namespace ImGui
 
     // Inputs
     // FIXME: Eventually we should aim to move e.g. IsActiveIdUsingKey() into IsKeyXXX functions.
+    inline bool             IsNamedKey(ImGuiKey key)                                    { return key >= ImGuiKey_NamedKey_BEGIN && key < ImGuiKey_NamedKey_END; }
+    inline bool             IsLegacyKey(ImGuiKey key)                                   { return key >= ImGuiKey_LegacyNativeKey_BEGIN && key < ImGuiKey_LegacyNativeKey_END; }
+    inline bool             IsGamepadKey(ImGuiKey key)                                  { return key >= ImGuiKey_Gamepad_BEGIN && key < ImGuiKey_Gamepad_END; }
+    IMGUI_API ImGuiKeyData* GetKeyData(ImGuiKey key);
     IMGUI_API void          SetItemUsingMouseWheel();
     IMGUI_API void          SetActiveIdUsingNavAndKeys();
     inline bool             IsActiveIdUsingNavDir(ImGuiDir dir)                         { ImGuiContext& g = *GImGui; return (g.ActiveIdUsingNavDirMask & (1 << dir)) != 0; }
     inline bool             IsActiveIdUsingNavInput(ImGuiNavInput input)                { ImGuiContext& g = *GImGui; return (g.ActiveIdUsingNavInputMask & (1 << input)) != 0; }
-    inline bool             IsActiveIdUsingKey(ImGuiKey key)                            { ImGuiContext& g = *GImGui; IM_ASSERT(key < 64); return (g.ActiveIdUsingKeyInputMask & ((ImU64)1 << key)) != 0; }
+    inline bool             IsActiveIdUsingKey(ImGuiKey key)                            { ImGuiContext& g = *GImGui; return g.ActiveIdUsingKeyInputMask[key]; }
+    inline void             SetActiveIdUsingKey(ImGuiKey key)                           { ImGuiContext& g = *GImGui; g.ActiveIdUsingKeyInputMask.SetBit(key); }
     IMGUI_API bool          IsMouseDragPastThreshold(ImGuiMouseButton button, float lock_threshold = -1.0f);
-    inline bool             IsKeyPressedMap(ImGuiKey key, bool repeat = true)           { ImGuiContext& g = *GImGui; const int key_index = g.IO.KeyMap[key]; return (key_index >= 0) ? IsKeyPressed(key_index, repeat) : false; }
     inline bool             IsNavInputDown(ImGuiNavInput n)                             { ImGuiContext& g = *GImGui; return g.IO.NavInputs[n] > 0.0f; }
-    inline bool             IsNavInputTest(ImGuiNavInput n, ImGuiInputReadMode rm)      { return (GetNavInputAmount(n, rm) > 0.0f); }
-    IMGUI_API ImGuiKeyModFlags GetMergedKeyModFlags();
+    inline bool             IsNavInputTest(ImGuiNavInput n, ImGuiNavReadMode rm)        { return (GetNavInputAmount(n, rm) > 0.0f); }
+    IMGUI_API ImGuiModFlags GetMergedModFlags();
+#ifndef IMGUI_DISABLE_OBSOLETE_KEYIO
+    inline bool             IsKeyPressedMap(ImGuiKey key, bool repeat = true)           { IM_ASSERT(IsNamedKey(key)); return IsKeyPressed(key, repeat); } // [removed in 1.87]
+#endif
 
     // Drag and Drop
+    IMGUI_API bool          IsDragDropActive();
     IMGUI_API bool          BeginDragDropTargetCustom(const ImRect& bb, ImGuiID id);
     IMGUI_API void          ClearDragDrop();
     IMGUI_API bool          IsDragDropPayloadBeingAccepted();
@@ -2639,6 +2754,7 @@ namespace ImGui
     IMGUI_API void          TableDrawBorders(ImGuiTable* table);
     IMGUI_API void          TableDrawContextMenu(ImGuiTable* table);
     IMGUI_API void          TableMergeDrawChannels(ImGuiTable* table);
+    inline ImGuiTableInstanceData*   TableGetInstanceData(ImGuiTable* table, int instance_no) { if (instance_no == 0) return &table->InstanceDataFirst; return &table->InstanceDataExtra[instance_no - 1]; }
     IMGUI_API void          TableSortSpecsSanitize(ImGuiTable* table);
     IMGUI_API void          TableSortSpecsBuild(ImGuiTable* table);
     IMGUI_API ImGuiSortDirection TableGetColumnNextSortDirection(ImGuiTableColumn* column);
@@ -2664,7 +2780,7 @@ namespace ImGui
     IMGUI_API void                  TableSaveSettings(ImGuiTable* table);
     IMGUI_API void                  TableResetSettings(ImGuiTable* table);
     IMGUI_API ImGuiTableSettings*   TableGetBoundSettings(ImGuiTable* table);
-    IMGUI_API void                  TableSettingsInstallHandler(ImGuiContext* context);
+    IMGUI_API void                  TableSettingsAddSettingsHandler();
     IMGUI_API ImGuiTableSettings*   TableSettingsCreate(ImGuiID id, int columns_count);
     IMGUI_API ImGuiTableSettings*   TableSettingsFindByID(ImGuiID id);
 
@@ -2694,21 +2810,15 @@ namespace ImGui
     IMGUI_API void          RenderColorRectWithAlphaCheckerboard(ImDrawList* draw_list, ImVec2 p_min, ImVec2 p_max, ImU32 fill_col, float grid_step, ImVec2 grid_off, float rounding = 0.0f, ImDrawFlags flags = 0);
     IMGUI_API void          RenderNavHighlight(const ImRect& bb, ImGuiID id, ImGuiNavHighlightFlags flags = ImGuiNavHighlightFlags_TypeDefault); // Navigation highlight
     IMGUI_API const char*   FindRenderedTextEnd(const char* text, const char* text_end = NULL); // Find the optional ## from which we stop displaying text.
+    IMGUI_API void          RenderMouseCursor(ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow);
 
     // Render helpers (those functions don't access any ImGui state!)
     IMGUI_API void          RenderArrow(ImDrawList* draw_list, ImVec2 pos, ImU32 col, ImGuiDir dir, float scale = 1.0f);
     IMGUI_API void          RenderBullet(ImDrawList* draw_list, ImVec2 pos, ImU32 col);
     IMGUI_API void          RenderCheckMark(ImDrawList* draw_list, ImVec2 pos, ImU32 col, float sz);
-    IMGUI_API void          RenderMouseCursor(ImDrawList* draw_list, ImVec2 pos, float scale, ImGuiMouseCursor mouse_cursor, ImU32 col_fill, ImU32 col_border, ImU32 col_shadow);
     IMGUI_API void          RenderArrowPointingAt(ImDrawList* draw_list, ImVec2 pos, ImVec2 half_sz, ImGuiDir direction, ImU32 col);
     IMGUI_API void          RenderRectFilledRangeH(ImDrawList* draw_list, const ImRect& rect, ImU32 col, float x_start_norm, float x_end_norm, float rounding);
-    IMGUI_API void          RenderRectFilledWithHole(ImDrawList* draw_list, ImRect outer, ImRect inner, ImU32 col, float rounding);
-
-#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    // [1.71: 2019/06/07: Updating prototypes of some of the internal functions. Leaving those for reference for a short while]
-    inline void RenderArrow(ImVec2 pos, ImGuiDir dir, float scale=1.0f) { ImGuiWindow* window = GetCurrentWindow(); RenderArrow(window->DrawList, pos, GetColorU32(ImGuiCol_Text), dir, scale); }
-    inline void RenderBullet(ImVec2 pos)                                { ImGuiWindow* window = GetCurrentWindow(); RenderBullet(window->DrawList, pos, GetColorU32(ImGuiCol_Text)); }
-#endif
+    IMGUI_API void          RenderRectFilledWithHole(ImDrawList* draw_list, const ImRect& outer, const ImRect& inner, ImU32 col, float rounding);
 
     // Widgets
     IMGUI_API void          TextEx(const char* text, const char* text_end = NULL, ImGuiTextFlags flags = 0);
@@ -2743,14 +2853,14 @@ namespace ImGui
     template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API T     ScaleValueFromRatioT(ImGuiDataType data_type, float t, T v_min, T v_max, bool is_logarithmic, float logarithmic_zero_epsilon, float zero_deadzone_size);
     template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API bool  DragBehaviorT(ImGuiDataType data_type, T* v, float v_speed, T v_min, T v_max, const char* format, ImGuiSliderFlags flags);
     template<typename T, typename SIGNED_T, typename FLOAT_T>   IMGUI_API bool  SliderBehaviorT(const ImRect& bb, ImGuiID id, ImGuiDataType data_type, T* v, T v_min, T v_max, const char* format, ImGuiSliderFlags flags, ImRect* out_grab_bb);
-    template<typename T, typename SIGNED_T>                     IMGUI_API T     RoundScalarWithFormatT(const char* format, ImGuiDataType data_type, T v);
+    template<typename T>                                        IMGUI_API T     RoundScalarWithFormatT(const char* format, ImGuiDataType data_type, T v);
     template<typename T>                                        IMGUI_API bool  CheckboxFlagsT(const char* label, T* flags, T flags_value);
 
     // Data type helpers
     IMGUI_API const ImGuiDataTypeInfo*  DataTypeGetInfo(ImGuiDataType data_type);
     IMGUI_API int           DataTypeFormatString(char* buf, int buf_size, ImGuiDataType data_type, const void* p_data, const char* format);
     IMGUI_API void          DataTypeApplyOp(ImGuiDataType data_type, int op, void* output, const void* arg_1, const void* arg_2);
-    IMGUI_API bool          DataTypeApplyOpFromText(const char* buf, const char* initial_value_buf, ImGuiDataType data_type, void* p_data, const char* format);
+    IMGUI_API bool          DataTypeApplyFromText(const char* buf, ImGuiDataType data_type, void* p_data, const char* format);
     IMGUI_API int           DataTypeCompare(ImGuiDataType data_type, const void* arg_1, const void* arg_2);
     IMGUI_API bool          DataTypeClamp(ImGuiDataType data_type, void* p_data, const void* p_min, const void* p_max);
 
@@ -2778,22 +2888,27 @@ namespace ImGui
     IMGUI_API void          GcCompactTransientWindowBuffers(ImGuiWindow* window);
     IMGUI_API void          GcAwakeTransientWindowBuffers(ImGuiWindow* window);
 
+    // Debug Log
+    IMGUI_API void          DebugLog(const char* fmt, ...) IM_FMTARGS(1);
+    IMGUI_API void          DebugLogV(const char* fmt, va_list args) IM_FMTLIST(1);
+    
     // Debug Tools
     IMGUI_API void          ErrorCheckEndFrameRecover(ImGuiErrorLogCallback log_callback, void* user_data = NULL);
     IMGUI_API void          ErrorCheckEndWindowRecover(ImGuiErrorLogCallback log_callback, void* user_data = NULL);
     inline void             DebugDrawItemRect(ImU32 col = IM_COL32(255,0,0,255))    { ImGuiContext& g = *GImGui; ImGuiWindow* window = g.CurrentWindow; GetForegroundDrawList(window)->AddRect(g.LastItemData.Rect.Min, g.LastItemData.Rect.Max, col); }
     inline void             DebugStartItemPicker()                                  { ImGuiContext& g = *GImGui; g.DebugItemPickerActive = true; }
-
     IMGUI_API void          ShowFontAtlas(ImFontAtlas* atlas);
     IMGUI_API void          DebugHookIdInfo(ImGuiID id, ImGuiDataType data_type, const void* data_id, const void* data_id_end);
     IMGUI_API void          DebugNodeColumns(ImGuiOldColumns* columns);
     IMGUI_API void          DebugNodeDrawList(ImGuiWindow* window, const ImDrawList* draw_list, const char* label);
     IMGUI_API void          DebugNodeDrawCmdShowMeshAndBoundingBox(ImDrawList* out_draw_list, const ImDrawList* draw_list, const ImDrawCmd* draw_cmd, bool show_mesh, bool show_aabb);
     IMGUI_API void          DebugNodeFont(ImFont* font);
+    IMGUI_API void          DebugNodeFontGlyph(ImFont* font, const ImFontGlyph* glyph);
     IMGUI_API void          DebugNodeStorage(ImGuiStorage* storage, const char* label);
     IMGUI_API void          DebugNodeTabBar(ImGuiTabBar* tab_bar, const char* label);
     IMGUI_API void          DebugNodeTable(ImGuiTable* table);
     IMGUI_API void          DebugNodeTableSettings(ImGuiTableSettings* settings);
+    IMGUI_API void          DebugNodeInputTextState(ImGuiInputTextState* state);
     IMGUI_API void          DebugNodeWindow(ImGuiWindow* window, const char* label);
     IMGUI_API void          DebugNodeWindowSettings(ImGuiWindowSettings* settings);
     IMGUI_API void          DebugNodeWindowsList(ImVector<ImGuiWindow*>* windows, const char* label);
@@ -2815,7 +2930,9 @@ struct ImFontBuilderIO
 };
 
 // Helper for font builder
+#ifdef IMGUI_ENABLE_STB_TRUETYPE
 IMGUI_API const ImFontBuilderIO* ImFontAtlasGetBuilderForStbTruetype();
+#endif
 IMGUI_API void      ImFontAtlasBuildInit(ImFontAtlas* atlas);
 IMGUI_API void      ImFontAtlasBuildSetupFont(ImFontAtlas* atlas, ImFont* font, ImFontConfig* font_config, float ascent, float descent);
 IMGUI_API void      ImFontAtlasBuildPackCustomRects(ImFontAtlas* atlas, void* stbrp_context_opaque);
@@ -2839,7 +2956,8 @@ extern const char*  ImGuiTestEngine_FindItemDebugLabel(ImGuiContext* ctx, ImGuiI
 #define IMGUI_TEST_ENGINE_ITEM_INFO(_ID,_LABEL,_FLAGS)      if (g.TestEngineHookItems) ImGuiTestEngineHook_ItemInfo(&g, _ID, _LABEL, _FLAGS)   // Register item label and status flags (optional)
 #define IMGUI_TEST_ENGINE_LOG(_FMT,...)                     if (g.TestEngineHookItems) ImGuiTestEngineHook_Log(&g, _FMT, __VA_ARGS__)          // Custom log entry from user land into test log
 #else
-#define IMGUI_TEST_ENGINE_ITEM_INFO(_ID,_LABEL,_FLAGS)      ((void)0)
+#define IMGUI_TEST_ENGINE_ITEM_ADD(_BB,_ID)                 ((void)0)
+#define IMGUI_TEST_ENGINE_ITEM_INFO(_ID,_LABEL,_FLAGS)      ((void)g)
 #endif
 
 //-----------------------------------------------------------------------------

UberEngine/vendor/ImGui/imgui_tables.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.86
+// dear imgui, v1.88
 // (tables and columns code)
 
 /*
@@ -24,7 +24,7 @@ Index of this file:
 */
 
 // Navigating this file:
-// - In Visual Studio IDE: CTRL+comma ("Edit.NavigateTo") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
+// - In Visual Studio IDE: CTRL+comma ("Edit.GoToAll") can follow symbols in comments, whereas CTRL+F12 ("Edit.GoToImplementation") cannot.
 // - With Visual Assist installed: ALT+G ("VAssistX.GoToImplementation") can also follow symbols in comments.
 
 //-----------------------------------------------------------------------------
@@ -361,6 +361,8 @@ bool    ImGui::BeginTableEx(const char* name, ImGuiID id, int columns_count, ImG
     table->IsLayoutLocked = false;
     table->InnerWidth = inner_width;
     temp_data->UserOuterSize = outer_size;
+    if (instance_no > 0 && table->InstanceDataExtra.Size < instance_no)
+        table->InstanceDataExtra.push_back(ImGuiTableInstanceData());
 
     // When not using a child window, WorkRect.Max will grow as we append contents.
     if (use_child_window)
@@ -537,7 +539,7 @@ bool    ImGui::BeginTableEx(const char* name, ImGuiID id, int columns_count, ImG
     if (table->RefScale != 0.0f && table->RefScale != new_ref_scale_unit)
     {
         const float scale_factor = new_ref_scale_unit / table->RefScale;
-        //IMGUI_DEBUG_LOG("[table] %08X RefScaleUnit %.3f -> %.3f, scaling width by %.3f\n", table->ID, table->RefScaleUnit, new_ref_scale_unit, scale_factor);
+        //IMGUI_DEBUG_PRINT("[table] %08X RefScaleUnit %.3f -> %.3f, scaling width by %.3f\n", table->ID, table->RefScaleUnit, new_ref_scale_unit, scale_factor);
         for (int n = 0; n < columns_count; n++)
             table->Columns[n].WidthRequest = table->Columns[n].WidthRequest * scale_factor;
     }
@@ -886,6 +888,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
         sum_width_requests += table->CellPaddingX * 2.0f;
     }
     table->ColumnsEnabledFixedCount = (ImGuiTableColumnIdx)count_fixed;
+    table->ColumnsStretchSumWeights = stretch_sum_weights;
 
     // [Part 4] Apply final widths based on requested widths
     const ImRect work_rect = table->WorkRect;
@@ -933,9 +936,10 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
             width_remaining_for_stretched_columns -= 1.0f;
         }
 
+    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
     table->HoveredColumnBody = -1;
     table->HoveredColumnBorder = -1;
-    const ImRect mouse_hit_rect(table->OuterRect.Min.x, table->OuterRect.Min.y, table->OuterRect.Max.x, ImMax(table->OuterRect.Max.y, table->OuterRect.Min.y + table->LastOuterHeight));
+    const ImRect mouse_hit_rect(table->OuterRect.Min.x, table->OuterRect.Min.y, table->OuterRect.Max.x, ImMax(table->OuterRect.Max.y, table->OuterRect.Min.y + table_instance->LastOuterHeight));
     const bool is_hovering_table = ItemHoverable(mouse_hit_rect, 0);
 
     // [Part 6] Setup final position, offset, skip/clip states and clipping rectangles, detect hovered column
@@ -1096,7 +1100,7 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
     // [Part 10] Hit testing on borders
     if (table->Flags & ImGuiTableFlags_Resizable)
         TableUpdateBorders(table);
-    table->LastFirstRowHeight = 0.0f;
+    table_instance->LastFirstRowHeight = 0.0f;
     table->IsLayoutLocked = true;
     table->IsUsingHeaders = false;
 
@@ -1141,10 +1145,11 @@ void ImGui::TableUpdateBorders(ImGuiTable* table)
     // use the final height from last frame. Because this is only affecting _interaction_ with columns, it is not
     // really problematic (whereas the actual visual will be displayed in EndTable() and using the current frame height).
     // Actual columns highlight/render will be performed in EndTable() and not be affected.
+    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
     const float hit_half_width = TABLE_RESIZE_SEPARATOR_HALF_THICKNESS;
     const float hit_y1 = table->OuterRect.Min.y;
-    const float hit_y2_body = ImMax(table->OuterRect.Max.y, hit_y1 + table->LastOuterHeight);
-    const float hit_y2_head = hit_y1 + table->LastFirstRowHeight;
+    const float hit_y2_body = ImMax(table->OuterRect.Max.y, hit_y1 + table_instance->LastOuterHeight);
+    const float hit_y2_head = hit_y1 + table_instance->LastFirstRowHeight;
 
     for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
     {
@@ -1223,6 +1228,7 @@ void    ImGui::EndTable()
             TableOpenContextMenu((int)table->HoveredColumnBody);
 
     // Finalize table height
+    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
     inner_window->DC.PrevLineSize = temp_data->HostBackupPrevLineSize;
     inner_window->DC.CurrLineSize = temp_data->HostBackupCurrLineSize;
     inner_window->DC.CursorMaxPos = temp_data->HostBackupCursorMaxPos;
@@ -1233,7 +1239,7 @@ void    ImGui::EndTable()
     else if (!(flags & ImGuiTableFlags_NoHostExtendY))
         table->OuterRect.Max.y = table->InnerRect.Max.y = ImMax(table->OuterRect.Max.y, inner_content_max_y); // Patch OuterRect/InnerRect height
     table->WorkRect.Max.y = ImMax(table->WorkRect.Max.y, table->OuterRect.Max.y);
-    table->LastOuterHeight = table->OuterRect.GetHeight();
+    table_instance->LastOuterHeight = table->OuterRect.GetHeight();
 
     // Setup inner scrolling range
     // FIXME: This ideally should be done earlier, in BeginTable() SetNextWindowContentSize call, just like writing to inner_window->DC.CursorMaxPos.y,
@@ -1279,17 +1285,23 @@ void    ImGui::EndTable()
     splitter->Merge(inner_window->DrawList);
 
     // Update ColumnsAutoFitWidth to get us ahead for host using our size to auto-resize without waiting for next BeginTable()
-    const float width_spacings = (table->OuterPaddingX * 2.0f) + (table->CellSpacingX1 + table->CellSpacingX2) * (table->ColumnsEnabledCount - 1);
-    table->ColumnsAutoFitWidth = width_spacings + (table->CellPaddingX * 2.0f) * table->ColumnsEnabledCount;
+    float auto_fit_width_for_fixed = 0.0f;
+    float auto_fit_width_for_stretched = 0.0f;
+    float auto_fit_width_for_stretched_min = 0.0f;
     for (int column_n = 0; column_n < table->ColumnsCount; column_n++)
         if (table->EnabledMaskByIndex & ((ImU64)1 << column_n))
         {
             ImGuiTableColumn* column = &table->Columns[column_n];
-            if ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && !(column->Flags & ImGuiTableColumnFlags_NoResize))
-                table->ColumnsAutoFitWidth += column->WidthRequest;
+            float column_width_request = ((column->Flags & ImGuiTableColumnFlags_WidthFixed) && !(column->Flags & ImGuiTableColumnFlags_NoResize)) ? column->WidthRequest : TableGetColumnWidthAuto(table, column);
+            if (column->Flags & ImGuiTableColumnFlags_WidthFixed)
+                auto_fit_width_for_fixed += column_width_request;
             else
-                table->ColumnsAutoFitWidth += TableGetColumnWidthAuto(table, column);
+                auto_fit_width_for_stretched += column_width_request;
+            if ((column->Flags & ImGuiTableColumnFlags_WidthStretch) && (column->Flags & ImGuiTableColumnFlags_NoResize) != 0)
+                auto_fit_width_for_stretched_min = ImMax(auto_fit_width_for_stretched_min, column_width_request / (column->StretchWeight / table->ColumnsStretchSumWeights));
         }
+    const float width_spacings = (table->OuterPaddingX * 2.0f) + (table->CellSpacingX1 + table->CellSpacingX2) * (table->ColumnsEnabledCount - 1);
+    table->ColumnsAutoFitWidth = width_spacings + (table->CellPaddingX * 2.0f) * table->ColumnsEnabledCount + auto_fit_width_for_fixed + ImMax(auto_fit_width_for_stretched, auto_fit_width_for_stretched_min);
 
     // Update scroll
     if ((table->Flags & ImGuiTableFlags_ScrollX) == 0 && inner_window != outer_window)
@@ -1569,18 +1581,21 @@ ImGuiTableColumnFlags ImGui::TableGetColumnFlags(int column_n)
 
 // Return the cell rectangle based on currently known height.
 // - Important: we generally don't know our row height until the end of the row, so Max.y will be incorrect in many situations.
-//   The only case where this is correct is if we provided a min_row_height to TableNextRow() and don't go below it.
+//   The only case where this is correct is if we provided a min_row_height to TableNextRow() and don't go below it, or in TableEndRow() when we locked that height.
 // - Important: if ImGuiTableFlags_PadOuterX is set but ImGuiTableFlags_PadInnerX is not set, the outer-most left and right
 //   columns report a small offset so their CellBgRect can extend up to the outer border.
+//   FIXME: But the rendering code in TableEndRow() nullifies that with clamping required for scrolling.
 ImRect ImGui::TableGetCellBgRect(const ImGuiTable* table, int column_n)
 {
     const ImGuiTableColumn* column = &table->Columns[column_n];
     float x1 = column->MinX;
     float x2 = column->MaxX;
-    if (column->PrevEnabledColumn == -1)
-        x1 -= table->CellSpacingX1;
-    if (column->NextEnabledColumn == -1)
-        x2 += table->CellSpacingX2;
+    //if (column->PrevEnabledColumn == -1)
+    //    x1 -= table->OuterPaddingX;
+    //if (column->NextEnabledColumn == -1)
+    //    x2 += table->OuterPaddingX;
+    x1 = ImMax(x1, table->WorkRect.Min.x);
+    x2 = ImMin(x2, table->WorkRect.Max.x);
     return ImRect(x1, table->RowPosY1, x2, table->RowPosY2);
 }
 
@@ -1746,7 +1761,7 @@ void ImGui::TableEndRow(ImGuiTable* table)
     const bool unfreeze_rows_actual = (table->CurrentRow + 1 == table->FreezeRowsCount);
     const bool unfreeze_rows_request = (table->CurrentRow + 1 == table->FreezeRowsRequest);
     if (table->CurrentRow == 0)
-        table->LastFirstRowHeight = bg_y2 - bg_y1;
+        TableGetInstanceData(table, table->InstanceCurrent)->LastFirstRowHeight = bg_y2 - bg_y1;
 
     const bool is_visible = (bg_y2 >= table->InnerClipRect.Min.y && bg_y1 <= table->InnerClipRect.Max.y);
     if (is_visible)
@@ -1797,10 +1812,12 @@ void ImGui::TableEndRow(ImGuiTable* table)
             ImGuiTableCellData* cell_data_end = &table->RowCellData[table->RowCellDataCurrent];
             for (ImGuiTableCellData* cell_data = &table->RowCellData[0]; cell_data <= cell_data_end; cell_data++)
             {
+                // As we render the BG here we need to clip things (for layout we would not)
+                // FIXME: This cancels the OuterPadding addition done by TableGetCellBgRect(), need to keep it while rendering correctly while scrolling.
                 const ImGuiTableColumn* column = &table->Columns[cell_data->Column];
                 ImRect cell_bg_rect = TableGetCellBgRect(table, cell_data->Column);
                 cell_bg_rect.ClipWith(table->BgClipRect);
-                cell_bg_rect.Min.x = ImMax(cell_bg_rect.Min.x, column->ClipRect.Min.x);     // So that first column after frozen one gets clipped
+                cell_bg_rect.Min.x = ImMax(cell_bg_rect.Min.x, column->ClipRect.Min.x);     // So that first column after frozen one gets clipped when scrolling
                 cell_bg_rect.Max.x = ImMin(cell_bg_rect.Max.x, column->MaxX);
                 window->DrawList->AddRectFilled(cell_bg_rect.Min, cell_bg_rect.Max, cell_data->BgColor);
             }
@@ -2083,7 +2100,7 @@ void ImGui::TableSetColumnWidth(int column_n, float width)
     if (column_0->WidthGiven == column_0_width || column_0->WidthRequest == column_0_width)
         return;
 
-    //IMGUI_DEBUG_LOG("TableSetColumnWidth(%d, %.1f->%.1f)\n", column_0_idx, column_0->WidthGiven, column_0_width);
+    //IMGUI_DEBUG_PRINT("TableSetColumnWidth(%d, %.1f->%.1f)\n", column_0_idx, column_0->WidthGiven, column_0_width);
     ImGuiTableColumn* column_1 = (column_0->NextEnabledColumn != -1) ? &table->Columns[column_0->NextEnabledColumn] : NULL;
 
     // In this surprisingly not simple because of how we support mixing Fixed and multiple Stretch columns.
@@ -2353,7 +2370,7 @@ void ImGui::TableMergeDrawChannels(ImGuiTable* table)
 
             // Don't attempt to merge if there are multiple draw calls within the column
             ImDrawChannel* src_channel = &splitter->_Channels[channel_no];
-            if (src_channel->_CmdBuffer.Size > 0 && src_channel->_CmdBuffer.back().ElemCount == 0)
+            if (src_channel->_CmdBuffer.Size > 0 && src_channel->_CmdBuffer.back().ElemCount == 0 && src_channel->_CmdBuffer.back().UserCallback == NULL) // Equivalent of PopUnusedDrawCmd()
                 src_channel->_CmdBuffer.pop_back();
             if (src_channel->_CmdBuffer.Size != 1)
                 continue;
@@ -2497,10 +2514,11 @@ void ImGui::TableDrawBorders(ImGuiTable* table)
     inner_drawlist->PushClipRect(table->Bg0ClipRectForDrawCmd.Min, table->Bg0ClipRectForDrawCmd.Max, false);
 
     // Draw inner border and resizing feedback
+    ImGuiTableInstanceData* table_instance = TableGetInstanceData(table, table->InstanceCurrent);
     const float border_size = TABLE_BORDER_SIZE;
     const float draw_y1 = table->InnerRect.Min.y;
     const float draw_y2_body = table->InnerRect.Max.y;
-    const float draw_y2_head = table->IsUsingHeaders ? ImMin(table->InnerRect.Max.y, (table->FreezeRowsCount >= 1 ? table->InnerRect.Min.y : table->WorkRect.Min.y) + table->LastFirstRowHeight) : draw_y1;
+    const float draw_y2_head = table->IsUsingHeaders ? ImMin(table->InnerRect.Max.y, (table->FreezeRowsCount >= 1 ? table->InnerRect.Min.y : table->WorkRect.Min.y) + table_instance->LastFirstRowHeight) : draw_y1;
     if (table->Flags & ImGuiTableFlags_BordersInnerV)
     {
         for (int order_n = 0; order_n < table->ColumnsCount; order_n++)
@@ -3422,9 +3440,8 @@ static void TableSettingsHandler_WriteAll(ImGuiContext* ctx, ImGuiSettingsHandle
     }
 }
 
-void ImGui::TableSettingsInstallHandler(ImGuiContext* context)
+void ImGui::TableSettingsAddSettingsHandler()
 {
-    ImGuiContext& g = *context;
     ImGuiSettingsHandler ini_handler;
     ini_handler.TypeName = "Table";
     ini_handler.TypeHash = ImHashStr("Table");
@@ -3433,7 +3450,7 @@ void ImGui::TableSettingsInstallHandler(ImGuiContext* context)
     ini_handler.ReadLineFn = TableSettingsHandler_ReadLine;
     ini_handler.ApplyAllFn = TableSettingsHandler_ApplyAll;
     ini_handler.WriteAllFn = TableSettingsHandler_WriteAll;
-    g.SettingsHandlers.push_back(ini_handler);
+    AddSettingsHandler(&ini_handler);
 }
 
 //-------------------------------------------------------------------------
@@ -3447,7 +3464,7 @@ void ImGui::TableSettingsInstallHandler(ImGuiContext* context)
 // Remove Table (currently only used by TestEngine)
 void ImGui::TableRemove(ImGuiTable* table)
 {
-    //IMGUI_DEBUG_LOG("TableRemove() id=0x%08X\n", table->ID);
+    //IMGUI_DEBUG_PRINT("TableRemove() id=0x%08X\n", table->ID);
     ImGuiContext& g = *GImGui;
     int table_idx = g.Tables.GetIndex(table);
     //memset(table->RawData.Data, 0, table->RawData.size_in_bytes());
@@ -3459,7 +3476,7 @@ void ImGui::TableRemove(ImGuiTable* table)
 // Free up/compact internal Table buffers for when it gets unused
 void ImGui::TableGcCompactTransientBuffers(ImGuiTable* table)
 {
-    //IMGUI_DEBUG_LOG("TableGcCompactTransientBuffers() id=0x%08X\n", table->ID);
+    //IMGUI_DEBUG_PRINT("TableGcCompactTransientBuffers() id=0x%08X\n", table->ID);
     ImGuiContext& g = *GImGui;
     IM_ASSERT(table->MemoryCompacted == false);
     table->SortSpecs.Specs = NULL;
@@ -3503,7 +3520,7 @@ void ImGui::TableGcCompactSettings()
 // - DebugNodeTable() [Internal]
 //-------------------------------------------------------------------------
 
-#ifndef IMGUI_DISABLE_METRICS_WINDOW
+#ifndef IMGUI_DISABLE_DEBUG_TOOLS
 
 static const char* DebugNodeTableGetSizingPolicyDesc(ImGuiTableFlags sizing_policy)
 {
@@ -3531,6 +3548,8 @@ void ImGui::DebugNodeTable(ImGuiTable* table)
         GetForegroundDrawList()->AddRect(GetItemRectMin(), GetItemRectMax(), IM_COL32(255, 255, 0, 255));
     if (!open)
         return;
+    if (table->InstanceCurrent > 0)
+        ImGui::Text("** %d instances of same table! Some data below will refer to last instance.", table->InstanceCurrent + 1);
     bool clear_settings = SmallButton("Clear settings");
     BulletText("OuterRect: Pos: (%.1f,%.1f) Size: (%.1f,%.1f) Sizing: '%s'", table->OuterRect.Min.x, table->OuterRect.Min.y, table->OuterRect.GetWidth(), table->OuterRect.GetHeight(), DebugNodeTableGetSizingPolicyDesc(table->Flags));
     BulletText("ColumnsGivenWidth: %.1f, ColumnsAutoFitWidth: %.1f, InnerWidth: %.1f%s", table->ColumnsGivenWidth, table->ColumnsAutoFitWidth, table->InnerWidth, table->InnerWidth == 0.0f ? " (auto)" : "");
@@ -3595,7 +3614,7 @@ void ImGui::DebugNodeTableSettings(ImGuiTableSettings* settings)
     TreePop();
 }
 
-#else // #ifndef IMGUI_DISABLE_METRICS_WINDOW
+#else // #ifndef IMGUI_DISABLE_DEBUG_TOOLS
 
 void ImGui::DebugNodeTable(ImGuiTable*) {}
 void ImGui::DebugNodeTableSettings(ImGuiTableSettings*) {}

UberEngine/vendor/ImGui/imstb_rectpack.h

@@ -1,15 +1,19 @@
 // [DEAR IMGUI]
-// This is a slightly modified version of stb_rect_pack.h 1.00.
-// Those changes would need to be pushed into nothings/stb:
-// - Added STBRP__CDECL
+// This is a slightly modified version of stb_rect_pack.h 1.01.
 // Grep for [DEAR IMGUI] to find the changes.
-
-// stb_rect_pack.h - v1.00 - public domain - rectangle packing
+// 
+// stb_rect_pack.h - v1.01 - public domain - rectangle packing
 // Sean Barrett 2014
 //
 // Useful for e.g. packing rectangular textures into an atlas.
 // Does not do rotation.
 //
+// Before #including,
+//
+//    #define STB_RECT_PACK_IMPLEMENTATION
+//
+// in the file that you want to have the implementation.
+//
 // Not necessarily the awesomest packing method, but better than
 // the totally naive one in stb_truetype (which is primarily what
 // this is meant to replace).
@@ -41,6 +45,7 @@
 //
 // Version history:
 //
+//     1.01  (2021-07-11)  always use large rect mode, expose STBRP__MAXVAL in public section
 //     1.00  (2019-02-25)  avoid small space waste; gracefully fail too-wide rectangles
 //     0.99  (2019-02-07)  warning fixes
 //     0.11  (2017-03-03)  return packing success/fail result
@@ -81,11 +86,10 @@ typedef struct stbrp_context stbrp_context;
 typedef struct stbrp_node    stbrp_node;
 typedef struct stbrp_rect    stbrp_rect;
 
-#ifdef STBRP_LARGE_RECTS
 typedef int            stbrp_coord;
-#else
-typedef unsigned short stbrp_coord;
-#endif
+
+#define STBRP__MAXVAL  0x7fffffff
+// Mostly for internal use, but this is the maximum supported coordinate value.
 
 STBRP_DEF int stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects);
 // Assign packed locations to rectangles. The rectangles are of type
@@ -213,7 +217,6 @@ struct stbrp_context
 #define STBRP_ASSERT assert
 #endif
 
-// [DEAR IMGUI] Added STBRP__CDECL
 #ifdef _MSC_VER
 #define STBRP__NOTUSED(v)  (void)(v)
 #define STBRP__CDECL       __cdecl
@@ -262,9 +265,6 @@ STBRP_DEF void stbrp_setup_allow_out_of_mem(stbrp_context *context, int allow_ou
 STBRP_DEF void stbrp_init_target(stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes)
 {
    int i;
-#ifndef STBRP_LARGE_RECTS
-   STBRP_ASSERT(width <= 0xffff && height <= 0xffff);
-#endif
 
    for (i=0; i < num_nodes-1; ++i)
       nodes[i].next = &nodes[i+1];
@@ -283,11 +283,7 @@ STBRP_DEF void stbrp_init_target(stbrp_context *context, int width, int height,
    context->extra[0].y = 0;
    context->extra[0].next = &context->extra[1];
    context->extra[1].x = (stbrp_coord) width;
-#ifdef STBRP_LARGE_RECTS
    context->extra[1].y = (1<<30);
-#else
-   context->extra[1].y = 65535;
-#endif
    context->extra[1].next = NULL;
 }
 
@@ -433,7 +429,7 @@ static stbrp__findresult stbrp__skyline_find_best_pos(stbrp_context *c, int widt
             if (y <= best_y) {
                if (y < best_y || waste < best_waste || (waste==best_waste && xpos < best_x)) {
                   best_x = xpos;
-                  STBRP_ASSERT(y <= best_y);
+                  //STBRP_ASSERT(y <= best_y); [DEAR IMGUI]
                   best_y = y;
                   best_waste = waste;
                   best = prev;
@@ -529,7 +525,6 @@ static stbrp__findresult stbrp__skyline_pack_rectangle(stbrp_context *context, i
    return res;
 }
 
-// [DEAR IMGUI] Added STBRP__CDECL
 static int STBRP__CDECL rect_height_compare(const void *a, const void *b)
 {
    const stbrp_rect *p = (const stbrp_rect *) a;
@@ -541,7 +536,6 @@ static int STBRP__CDECL rect_height_compare(const void *a, const void *b)
    return (p->w > q->w) ? -1 : (p->w < q->w);
 }
 
-// [DEAR IMGUI] Added STBRP__CDECL
 static int STBRP__CDECL rect_original_order(const void *a, const void *b)
 {
    const stbrp_rect *p = (const stbrp_rect *) a;
@@ -549,12 +543,6 @@ static int STBRP__CDECL rect_original_order(const void *a, const void *b)
    return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed);
 }
 
-#ifdef STBRP_LARGE_RECTS
-#define STBRP__MAXVAL  0xffffffff
-#else
-#define STBRP__MAXVAL  0xffff
-#endif
-
 STBRP_DEF int stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects)
 {
    int i, all_rects_packed = 1;

UberEngine/vendor/ImGui/imstb_textedit.h

@@ -1,10 +1,10 @@
 // [DEAR IMGUI]
-// This is a slightly modified version of stb_textedit.h 1.13.
+// This is a slightly modified version of stb_textedit.h 1.14.
 // Those changes would need to be pushed into nothings/stb:
 // - Fix in stb_textedit_discard_redo (see https://github.com/nothings/stb/issues/321)
 // Grep for [DEAR IMGUI] to find the changes.
 
-// stb_textedit.h - v1.13  - public domain - Sean Barrett
+// stb_textedit.h - v1.14  - public domain - Sean Barrett
 // Development of this library was sponsored by RAD Game Tools
 //
 // This C header file implements the guts of a multi-line text-editing
@@ -35,6 +35,7 @@
 //
 // VERSION HISTORY
 //
+//   1.14 (2021-07-11) page up/down, various fixes
 //   1.13 (2019-02-07) fix bug in undo size management
 //   1.12 (2018-01-29) user can change STB_TEXTEDIT_KEYTYPE, fix redo to avoid crash
 //   1.11 (2017-03-03) fix HOME on last line, dragging off single-line textfield
@@ -58,6 +59,7 @@
 //   Ulf Winklemann: move-by-word in 1.1
 //   Fabian Giesen: secondary key inputs in 1.5
 //   Martins Mozeiko: STB_TEXTEDIT_memmove in 1.6
+//   Louis Schnellbach: page up/down in 1.14
 //
 //   Bugfixes:
 //      Scott Graham
@@ -93,8 +95,8 @@
 //   moderate sizes. The undo system does no memory allocations, so
 //   it grows STB_TexteditState by the worst-case storage which is (in bytes):
 //
-//        [4 + 3 * sizeof(STB_TEXTEDIT_POSITIONTYPE)] * STB_TEXTEDIT_UNDOSTATE_COUNT
-//      +          sizeof(STB_TEXTEDIT_CHARTYPE)      * STB_TEXTEDIT_UNDOCHAR_COUNT
+//        [4 + 3 * sizeof(STB_TEXTEDIT_POSITIONTYPE)] * STB_TEXTEDIT_UNDOSTATECOUNT
+//      +          sizeof(STB_TEXTEDIT_CHARTYPE)      * STB_TEXTEDIT_UNDOCHARCOUNT
 //
 //
 // Implementation mode:
@@ -716,10 +718,6 @@ static int stb_textedit_paste_internal(STB_TEXTEDIT_STRING *str, STB_TexteditSta
       state->has_preferred_x = 0;
       return 1;
    }
-   // [DEAR IMGUI]
-   //// remove the undo since we didn't actually insert the characters
-   //if (state->undostate.undo_point)
-   //   --state->undostate.undo_point;
    // note: paste failure will leave deleted selection, may be restored with an undo (see https://github.com/nothings/stb/issues/734 for details)
    return 0;
 }

UberEngine/vendor/ImGui/imstb_truetype.h

@@ -1,10 +1,19 @@
 // [DEAR IMGUI]
-// This is a slightly modified version of stb_truetype.h 1.20.
+// This is a slightly modified version of stb_truetype.h 1.26.
 // Mostly fixing for compiler and static analyzer warnings.
 // Grep for [DEAR IMGUI] to find the changes.
 
-// stb_truetype.h - v1.20 - public domain
-// authored from 2009-2016 by Sean Barrett / RAD Game Tools
+// stb_truetype.h - v1.26 - public domain
+// authored from 2009-2021 by Sean Barrett / RAD Game Tools
+//
+// =======================================================================
+//
+//    NO SECURITY GUARANTEE -- DO NOT USE THIS ON UNTRUSTED FONT FILES
+//
+// This library does no range checking of the offsets found in the file,
+// meaning an attacker can use it to read arbitrary memory.
+//
+// =======================================================================
 //
 //   This library processes TrueType files:
 //        parse files
@@ -37,11 +46,11 @@
 //       Daniel Ribeiro Maciel
 //
 //   Bug/warning reports/fixes:
-//       "Zer" on mollyrocket       Fabian "ryg" Giesen
-//       Cass Everitt               Martins Mozeiko
-//       stoiko (Haemimont Games)   Cap Petschulat
-//       Brian Hook                 Omar Cornut
-//       Walter van Niftrik         github:aloucks
+//       "Zer" on mollyrocket       Fabian "ryg" Giesen   github:NiLuJe
+//       Cass Everitt               Martins Mozeiko       github:aloucks
+//       stoiko (Haemimont Games)   Cap Petschulat        github:oyvindjam
+//       Brian Hook                 Omar Cornut           github:vassvik
+//       Walter van Niftrik         Ryan Griege
 //       David Gow                  Peter LaValle
 //       David Given                Sergey Popov
 //       Ivan-Assen Ivanov          Giumo X. Clanjor
@@ -49,11 +58,17 @@
 //       Johan Duparc               Thomas Fields
 //       Hou Qiming                 Derek Vinyard
 //       Rob Loach                  Cort Stratton
-//       Kenney Phillis Jr.         github:oyvindjam
-//       Brian Costabile            github:vassvik
+//       Kenney Phillis Jr.         Brian Costabile
+//       Ken Voskuil (kaesve)
 //
 // VERSION HISTORY
 //
+//   1.26 (2021-08-28) fix broken rasterizer
+//   1.25 (2021-07-11) many fixes
+//   1.24 (2020-02-05) fix warning
+//   1.23 (2020-02-02) query SVG data for glyphs; query whole kerning table (but only kern not GPOS)
+//   1.22 (2019-08-11) minimize missing-glyph duplication; fix kerning if both 'GPOS' and 'kern' are defined
+//   1.21 (2019-02-25) fix warning
 //   1.20 (2019-02-07) PackFontRange skips missing codepoints; GetScaleFontVMetrics()
 //   1.19 (2018-02-11) GPOS kerning, STBTT_fmod
 //   1.18 (2018-01-29) add missing function
@@ -248,19 +263,6 @@
 //   recommend it.
 //
 //
-// SOURCE STATISTICS (based on v0.6c, 2050 LOC)
-//
-//   Documentation & header file        520 LOC  \___ 660 LOC documentation
-//   Sample code                        140 LOC  /
-//   Truetype parsing                   620 LOC  ---- 620 LOC TrueType
-//   Software rasterization             240 LOC  \.
-//   Curve tessellation                 120 LOC   \__ 550 LOC Bitmap creation
-//   Bitmap management                  100 LOC   /
-//   Baked bitmap interface              70 LOC  /
-//   Font name matching & access        150 LOC  ---- 150
-//   C runtime library abstraction       60 LOC  ----  60
-//
-//
 // PERFORMANCE MEASUREMENTS FOR 1.06:
 //
 //                      32-bit     64-bit
@@ -275,8 +277,8 @@
 ////  SAMPLE PROGRAMS
 ////
 //
-//  Incomplete text-in-3d-api example, which draws quads properly aligned to be lossless
-//
+//  Incomplete text-in-3d-api example, which draws quads properly aligned to be lossless.
+//  See "tests/truetype_demo_win32.c" for a complete version.
 #if 0
 #define STB_TRUETYPE_IMPLEMENTATION  // force following include to generate implementation
 #include "stb_truetype.h"
@@ -302,6 +304,8 @@ void my_stbtt_initfont(void)
 void my_stbtt_print(float x, float y, char *text)
 {
    // assume orthographic projection with units = screen pixels, origin at top left
+   glEnable(GL_BLEND);
+   glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
    glEnable(GL_TEXTURE_2D);
    glBindTexture(GL_TEXTURE_2D, ftex);
    glBegin(GL_QUADS);
@@ -309,10 +313,10 @@ void my_stbtt_print(float x, float y, char *text)
       if (*text >= 32 && *text < 128) {
          stbtt_aligned_quad q;
          stbtt_GetBakedQuad(cdata, 512,512, *text-32, &x,&y,&q,1);//1=opengl & d3d10+,0=d3d9
-         glTexCoord2f(q.s0,q.t1); glVertex2f(q.x0,q.y0);
-         glTexCoord2f(q.s1,q.t1); glVertex2f(q.x1,q.y0);
-         glTexCoord2f(q.s1,q.t0); glVertex2f(q.x1,q.y1);
-         glTexCoord2f(q.s0,q.t0); glVertex2f(q.x0,q.y1);
+         glTexCoord2f(q.s0,q.t0); glVertex2f(q.x0,q.y0);
+         glTexCoord2f(q.s1,q.t0); glVertex2f(q.x1,q.y0);
+         glTexCoord2f(q.s1,q.t1); glVertex2f(q.x1,q.y1);
+         glTexCoord2f(q.s0,q.t1); glVertex2f(q.x0,q.y1);
       }
       ++text;
    }
@@ -719,7 +723,7 @@ struct stbtt_fontinfo
 
    int numGlyphs;                     // number of glyphs, needed for range checking
 
-   int loca,head,glyf,hhea,hmtx,kern,gpos; // table locations as offset from start of .ttf
+   int loca,head,glyf,hhea,hmtx,kern,gpos,svg; // table locations as offset from start of .ttf
    int index_map;                     // a cmap mapping for our chosen character encoding
    int indexToLocFormat;              // format needed to map from glyph index to glyph
 
@@ -802,6 +806,18 @@ STBTT_DEF int  stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int glyph1,
 STBTT_DEF int  stbtt_GetGlyphBox(const stbtt_fontinfo *info, int glyph_index, int *x0, int *y0, int *x1, int *y1);
 // as above, but takes one or more glyph indices for greater efficiency
 
+typedef struct stbtt_kerningentry
+{
+   int glyph1; // use stbtt_FindGlyphIndex
+   int glyph2;
+   int advance;
+} stbtt_kerningentry;
+
+STBTT_DEF int  stbtt_GetKerningTableLength(const stbtt_fontinfo *info);
+STBTT_DEF int  stbtt_GetKerningTable(const stbtt_fontinfo *info, stbtt_kerningentry* table, int table_length);
+// Retrieves a complete list of all of the kerning pairs provided by the font
+// stbtt_GetKerningTable never writes more than table_length entries and returns how many entries it did write.
+// The table will be sorted by (a.glyph1 == b.glyph1)?(a.glyph2 < b.glyph2):(a.glyph1 < b.glyph1)
 
 //////////////////////////////////////////////////////////////////////////////
 //
@@ -846,6 +862,12 @@ STBTT_DEF int stbtt_GetGlyphShape(const stbtt_fontinfo *info, int glyph_index, s
 STBTT_DEF void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *vertices);
 // frees the data allocated above
 
+STBTT_DEF unsigned char *stbtt_FindSVGDoc(const stbtt_fontinfo *info, int gl);
+STBTT_DEF int stbtt_GetCodepointSVG(const stbtt_fontinfo *info, int unicode_codepoint, const char **svg);
+STBTT_DEF int stbtt_GetGlyphSVG(const stbtt_fontinfo *info, int gl, const char **svg);
+// fills svg with the character's SVG data.
+// returns data size or 0 if SVG not found.
+
 //////////////////////////////////////////////////////////////////////////////
 //
 // BITMAP RENDERING
@@ -1347,6 +1369,22 @@ static stbtt__buf stbtt__get_subrs(stbtt__buf cff, stbtt__buf fontdict)
    return stbtt__cff_get_index(&cff);
 }
 
+// since most people won't use this, find this table the first time it's needed
+static int stbtt__get_svg(stbtt_fontinfo *info)
+{
+   stbtt_uint32 t;
+   if (info->svg < 0) {
+      t = stbtt__find_table(info->data, info->fontstart, "SVG ");
+      if (t) {
+         stbtt_uint32 offset = ttULONG(info->data + t + 2);
+         info->svg = t + offset;
+      } else {
+         info->svg = 0;
+      }
+   }
+   return info->svg;
+}
+
 static int stbtt_InitFont_internal(stbtt_fontinfo *info, unsigned char *data, int fontstart)
 {
    stbtt_uint32 cmap, t;
@@ -1426,6 +1464,8 @@ static int stbtt_InitFont_internal(stbtt_fontinfo *info, unsigned char *data, in
    else
       info->numGlyphs = 0xffff;
 
+   info->svg = -1;
+
    // find a cmap encoding table we understand *now* to avoid searching
    // later. (todo: could make this installable)
    // the same regardless of glyph.
@@ -1509,12 +1549,12 @@ STBTT_DEF int stbtt_FindGlyphIndex(const stbtt_fontinfo *info, int unicode_codep
       search += 2;
 
       {
-         stbtt_uint16 offset, start;
+         stbtt_uint16 offset, start, last;
          stbtt_uint16 item = (stbtt_uint16) ((search - endCount) >> 1);
 
-         STBTT_assert(unicode_codepoint <= ttUSHORT(data + endCount + 2*item));
          start = ttUSHORT(data + index_map + 14 + segcount*2 + 2 + 2*item);
-         if (unicode_codepoint < start)
+         last = ttUSHORT(data + endCount + 2*item);
+         if (unicode_codepoint < start || unicode_codepoint > last)
             return 0;
 
          offset = ttUSHORT(data + index_map + 14 + segcount*6 + 2 + 2*item);
@@ -1774,7 +1814,7 @@ static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, s
          }
       }
       num_vertices = stbtt__close_shape(vertices, num_vertices, was_off, start_off, sx,sy,scx,scy,cx,cy);
-   } else if (numberOfContours == -1) {
+   } else if (numberOfContours < 0) {
       // Compound shapes.
       int more = 1;
       stbtt_uint8 *comp = data + g + 10;
@@ -1841,7 +1881,7 @@ static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, s
                if (comp_verts) STBTT_free(comp_verts, info->userdata);
                return 0;
             }
-            if (num_vertices > 0) STBTT_memcpy(tmp, vertices, num_vertices*sizeof(stbtt_vertex)); //-V595
+            if (num_vertices > 0 && vertices) STBTT_memcpy(tmp, vertices, num_vertices*sizeof(stbtt_vertex));
             STBTT_memcpy(tmp+num_vertices, comp_verts, comp_num_verts*sizeof(stbtt_vertex));
             if (vertices) STBTT_free(vertices, info->userdata);
             vertices = tmp;
@@ -1851,9 +1891,6 @@ static int stbtt__GetGlyphShapeTT(const stbtt_fontinfo *info, int glyph_index, s
          // More components ?
          more = flags & (1<<5);
       }
-   } else if (numberOfContours < 0) {
-      // @TODO other compound variations?
-      STBTT_assert(0);
    } else {
       // numberOfCounters == 0, do nothing
    }
@@ -2107,7 +2144,7 @@ static int stbtt__run_charstring(const stbtt_fontinfo *info, int glyph_index, st
                subrs = stbtt__cid_get_glyph_subrs(info, glyph_index);
             has_subrs = 1;
          }
-         // fallthrough
+         // FALLTHROUGH
       case 0x1D: // callgsubr
          if (sp < 1) return STBTT__CSERR("call(g|)subr stack");
          v = (int) s[--sp];
@@ -2212,7 +2249,7 @@ static int stbtt__run_charstring(const stbtt_fontinfo *info, int glyph_index, st
       } break;
 
       default:
-         if (b0 != 255 && b0 != 28 && (b0 < 32 || b0 > 254)) //-V560
+         if (b0 != 255 && b0 != 28 && b0 < 32)
             return STBTT__CSERR("reserved operator");
 
          // push immediate
@@ -2282,6 +2319,48 @@ STBTT_DEF void stbtt_GetGlyphHMetrics(const stbtt_fontinfo *info, int glyph_inde
    }
 }
 
+STBTT_DEF int  stbtt_GetKerningTableLength(const stbtt_fontinfo *info)
+{
+   stbtt_uint8 *data = info->data + info->kern;
+
+   // we only look at the first table. it must be 'horizontal' and format 0.
+   if (!info->kern)
+      return 0;
+   if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
+      return 0;
+   if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
+      return 0;
+
+   return ttUSHORT(data+10);
+}
+
+STBTT_DEF int stbtt_GetKerningTable(const stbtt_fontinfo *info, stbtt_kerningentry* table, int table_length)
+{
+   stbtt_uint8 *data = info->data + info->kern;
+   int k, length;
+
+   // we only look at the first table. it must be 'horizontal' and format 0.
+   if (!info->kern)
+      return 0;
+   if (ttUSHORT(data+2) < 1) // number of tables, need at least 1
+      return 0;
+   if (ttUSHORT(data+8) != 1) // horizontal flag must be set in format
+      return 0;
+
+   length = ttUSHORT(data+10);
+   if (table_length < length)
+      length = table_length;
+
+   for (k = 0; k < length; k++)
+   {
+      table[k].glyph1 = ttUSHORT(data+18+(k*6));
+      table[k].glyph2 = ttUSHORT(data+20+(k*6));
+      table[k].advance = ttSHORT(data+22+(k*6));
+   }
+
+   return length;
+}
+
 static int stbtt__GetGlyphKernInfoAdvance(const stbtt_fontinfo *info, int glyph1, int glyph2)
 {
    stbtt_uint8 *data = info->data + info->kern;
@@ -2336,7 +2415,8 @@ static stbtt_int32  stbtt__GetCoverageIndex(stbtt_uint8 *coverageTable, int glyp
                return m;
             }
          }
-        } break;
+         break;
+      }
 
       case 2: {
          stbtt_uint16 rangeCount = ttUSHORT(coverageTable + 2);
@@ -2360,12 +2440,10 @@ static stbtt_int32  stbtt__GetCoverageIndex(stbtt_uint8 *coverageTable, int glyp
                return startCoverageIndex + glyph - strawStart;
             }
          }
-        } break;
+         break;
+      }
 
-        default: {
-            // There are no other cases.
-            STBTT_assert(0);
-        } break;
+      default: return -1; // unsupported
    }
 
    return -1;
@@ -2383,10 +2461,8 @@ static stbtt_int32  stbtt__GetGlyphClass(stbtt_uint8 *classDefTable, int glyph)
 
          if (glyph >= startGlyphID && glyph < startGlyphID + glyphCount)
             return (stbtt_int32)ttUSHORT(classDef1ValueArray + 2 * (glyph - startGlyphID));
-
-            // [DEAR IMGUI] Commented to fix static analyzer warning
-            //classDefTable = classDef1ValueArray + 2 * glyphCount;
-        } break;
+         break;
+      }
 
       case 2: {
          stbtt_uint16 classRangeCount = ttUSHORT(classDefTable + 2);
@@ -2408,18 +2484,15 @@ static stbtt_int32  stbtt__GetGlyphClass(stbtt_uint8 *classDefTable, int glyph)
             else
                return (stbtt_int32)ttUSHORT(classRangeRecord + 4);
          }
-
-            // [DEAR IMGUI] Commented to fix static analyzer warning
-            //classDefTable = classRangeRecords + 6 * classRangeCount;
-        } break;
-
-        default: {
-            // There are no other cases.
-            STBTT_assert(0);
-        } break;
+         break;
       }
 
-    return -1;
+      default:
+         return -1; // Unsupported definition type, return an error.
+   }
+
+   // "All glyphs not assigned to a class fall into class 0". (OpenType spec)
+   return 0;
 }
 
 // Define to STBTT_assert(x) if you want to break on unimplemented formats.
@@ -2431,7 +2504,7 @@ static stbtt_int32  stbtt__GetGlyphGPOSInfoAdvance(const stbtt_fontinfo *info, i
    stbtt_uint8 *lookupList;
    stbtt_uint16 lookupCount;
    stbtt_uint8 *data;
-    stbtt_int32 i;
+   stbtt_int32 i, sti;
 
    if (!info->gpos) return 0;
 
@@ -2451,9 +2524,9 @@ static stbtt_int32  stbtt__GetGlyphGPOSInfoAdvance(const stbtt_fontinfo *info, i
       stbtt_uint16 lookupType = ttUSHORT(lookupTable);
       stbtt_uint16 subTableCount = ttUSHORT(lookupTable + 4);
       stbtt_uint8 *subTableOffsets = lookupTable + 6;
-        switch(lookupType) {
-            case 2: { // Pair Adjustment Positioning Subtable
-                stbtt_int32 sti;
+      if (lookupType != 2) // Pair Adjustment Positioning Subtable
+         continue;
+
       for (sti=0; sti<subTableCount; sti++) {
          stbtt_uint16 subtableOffset = ttUSHORT(subTableOffsets + 2 * sti);
          stbtt_uint8 *table = lookupTable + subtableOffset;
@@ -2468,20 +2541,15 @@ static stbtt_int32  stbtt__GetGlyphGPOSInfoAdvance(const stbtt_fontinfo *info, i
                int straw, needle;
                stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
                stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
+               if (valueFormat1 == 4 && valueFormat2 == 0) { // Support more formats?
                   stbtt_int32 valueRecordPairSizeInBytes = 2;
                   stbtt_uint16 pairSetCount = ttUSHORT(table + 8);
                   stbtt_uint16 pairPosOffset = ttUSHORT(table + 10 + 2 * coverageIndex);
                   stbtt_uint8 *pairValueTable = table + pairPosOffset;
                   stbtt_uint16 pairValueCount = ttUSHORT(pairValueTable);
                   stbtt_uint8 *pairValueArray = pairValueTable + 2;
-                            // TODO: Support more formats.
-                            STBTT_GPOS_TODO_assert(valueFormat1 == 4);
-                            if (valueFormat1 != 4) return 0;
-                            STBTT_GPOS_TODO_assert(valueFormat2 == 0);
-                            if (valueFormat2 != 0) return 0;
 
-                            STBTT_assert(coverageIndex < pairSetCount);
-                            STBTT__NOTUSED(pairSetCount);
+                  if (coverageIndex >= pairSetCount) return 0;
 
                   needle=glyph2;
                   r=pairValueCount-1;
@@ -2504,12 +2572,15 @@ static stbtt_int32  stbtt__GetGlyphGPOSInfoAdvance(const stbtt_fontinfo *info, i
                         return xAdvance;
                      }
                   }
-                        } break;
+               } else
+                  return 0;
+               break;
+            }
 
             case 2: {
                stbtt_uint16 valueFormat1 = ttUSHORT(table + 4);
                stbtt_uint16 valueFormat2 = ttUSHORT(table + 6);
-
+               if (valueFormat1 == 4 && valueFormat2 == 0) { // Support more formats?
                   stbtt_uint16 classDef1Offset = ttUSHORT(table + 8);
                   stbtt_uint16 classDef2Offset = ttUSHORT(table + 10);
                   int glyph1class = stbtt__GetGlyphClass(table + classDef1Offset, glyph1);
@@ -2517,36 +2588,24 @@ static stbtt_int32  stbtt__GetGlyphGPOSInfoAdvance(const stbtt_fontinfo *info, i
 
                   stbtt_uint16 class1Count = ttUSHORT(table + 12);
                   stbtt_uint16 class2Count = ttUSHORT(table + 14);
-                            STBTT_assert(glyph1class < class1Count);
-                            STBTT_assert(glyph2class < class2Count);
+                  stbtt_uint8 *class1Records, *class2Records;
+                  stbtt_int16 xAdvance;
 
-                            // TODO: Support more formats.
-                            STBTT_GPOS_TODO_assert(valueFormat1 == 4);
-                            if (valueFormat1 != 4) return 0;
-                            STBTT_GPOS_TODO_assert(valueFormat2 == 0);
-                            if (valueFormat2 != 0) return 0;
+                  if (glyph1class < 0 || glyph1class >= class1Count) return 0; // malformed
+                  if (glyph2class < 0 || glyph2class >= class2Count) return 0; // malformed
 
-                            if (glyph1class >= 0 && glyph1class < class1Count && glyph2class >= 0 && glyph2class < class2Count) {
-                                stbtt_uint8 *class1Records = table + 16;
-                                stbtt_uint8 *class2Records = class1Records + 2 * (glyph1class * class2Count);
-                                stbtt_int16 xAdvance = ttSHORT(class2Records + 2 * glyph2class);
+                  class1Records = table + 16;
+                  class2Records = class1Records + 2 * (glyph1class * class2Count);
+                  xAdvance = ttSHORT(class2Records + 2 * glyph2class);
                   return xAdvance;
-                            }
-                        } break;
-
-                        default: {
-                            // There are no other cases.
-                            STBTT_assert(0);
+               } else
+                  return 0;
                break;
-                        } // [DEAR IMGUI] removed ;
             }
-                }
-                break;
-            } // [DEAR IMGUI] removed ;
 
             default:
-                // TODO: Implement other stuff.
-                break;
+               return 0; // Unsupported position format
+         }
       }
    }
 
@@ -2559,8 +2618,7 @@ STBTT_DEF int  stbtt_GetGlyphKernAdvance(const stbtt_fontinfo *info, int g1, int
 
    if (info->gpos)
       xAdvance += stbtt__GetGlyphGPOSInfoAdvance(info, g1, g2);
-
-   if (info->kern)
+   else if (info->kern)
       xAdvance += stbtt__GetGlyphKernInfoAdvance(info, g1, g2);
 
    return xAdvance;
@@ -2621,6 +2679,45 @@ STBTT_DEF void stbtt_FreeShape(const stbtt_fontinfo *info, stbtt_vertex *v)
    STBTT_free(v, info->userdata);
 }
 
+STBTT_DEF stbtt_uint8 *stbtt_FindSVGDoc(const stbtt_fontinfo *info, int gl)
+{
+   int i;
+   stbtt_uint8 *data = info->data;
+   stbtt_uint8 *svg_doc_list = data + stbtt__get_svg((stbtt_fontinfo *) info);
+
+   int numEntries = ttUSHORT(svg_doc_list);
+   stbtt_uint8 *svg_docs = svg_doc_list + 2;
+
+   for(i=0; i<numEntries; i++) {
+      stbtt_uint8 *svg_doc = svg_docs + (12 * i);
+      if ((gl >= ttUSHORT(svg_doc)) && (gl <= ttUSHORT(svg_doc + 2)))
+         return svg_doc;
+   }
+   return 0;
+}
+
+STBTT_DEF int stbtt_GetGlyphSVG(const stbtt_fontinfo *info, int gl, const char **svg)
+{
+   stbtt_uint8 *data = info->data;
+   stbtt_uint8 *svg_doc;
+
+   if (info->svg == 0)
+      return 0;
+
+   svg_doc = stbtt_FindSVGDoc(info, gl);
+   if (svg_doc != NULL) {
+      *svg = (char *) data + info->svg + ttULONG(svg_doc + 4);
+      return ttULONG(svg_doc + 8);
+   } else {
+      return 0;
+   }
+}
+
+STBTT_DEF int stbtt_GetCodepointSVG(const stbtt_fontinfo *info, int unicode_codepoint, const char **svg)
+{
+   return stbtt_GetGlyphSVG(info, stbtt_FindGlyphIndex(info, unicode_codepoint), svg);
+}
+
 //////////////////////////////////////////////////////////////////////////////
 //
 // antialiasing software rasterizer
@@ -2970,6 +3067,23 @@ static void stbtt__handle_clipped_edge(float *scanline, int x, stbtt__active_edg
    }
 }
 
+static float stbtt__sized_trapezoid_area(float height, float top_width, float bottom_width)
+{
+   STBTT_assert(top_width >= 0);
+   STBTT_assert(bottom_width >= 0);
+   return (top_width + bottom_width) / 2.0f * height;
+}
+
+static float stbtt__position_trapezoid_area(float height, float tx0, float tx1, float bx0, float bx1)
+{
+   return stbtt__sized_trapezoid_area(height, tx1 - tx0, bx1 - bx0);
+}
+
+static float stbtt__sized_triangle_area(float height, float width)
+{
+   return height * width / 2;
+}
+
 static void stbtt__fill_active_edges_new(float *scanline, float *scanline_fill, int len, stbtt__active_edge *e, float y_top)
 {
    float y_bottom = y_top+1;
@@ -3024,13 +3138,13 @@ static void stbtt__fill_active_edges_new(float *scanline, float *scanline_fill,
                float height;
                // simple case, only spans one pixel
                int x = (int) x_top;
-               height = sy1 - sy0;
+               height = (sy1 - sy0) * e->direction;
                STBTT_assert(x >= 0 && x < len);
-               scanline[x] += e->direction * (1-((x_top - x) + (x_bottom-x))/2)  * height;
-               scanline_fill[x] += e->direction * height; // everything right of this pixel is filled
+               scanline[x]      += stbtt__position_trapezoid_area(height, x_top, x+1.0f, x_bottom, x+1.0f);
+               scanline_fill[x] += height; // everything right of this pixel is filled
             } else {
                int x,x1,x2;
-               float y_crossing, step, sign, area;
+               float y_crossing, y_final, step, sign, area;
                // covers 2+ pixels
                if (x_top > x_bottom) {
                   // flip scanline vertically; signed area is the same
@@ -3042,32 +3156,83 @@ static void stbtt__fill_active_edges_new(float *scanline, float *scanline_fill,
                   dx = -dx;
                   dy = -dy;
                   t = x0, x0 = xb, xb = t;
-                  // [DEAR IMGUI] Fix static analyzer warning
-                  (void)dx; // [ImGui: fix static analyzer warning]
                }
+               STBTT_assert(dy >= 0);
+               STBTT_assert(dx >= 0);
 
                x1 = (int) x_top;
                x2 = (int) x_bottom;
                // compute intersection with y axis at x1+1
-               y_crossing = (x1+1 - x0) * dy + y_top;
+               y_crossing = y_top + dy * (x1+1 - x0);
+
+               // compute intersection with y axis at x2
+               y_final = y_top + dy * (x2 - x0);
+
+               //           x1    x_top                            x2    x_bottom
+               //     y_top  +------|-----+------------+------------+--------|---+------------+
+               //            |            |            |            |            |            |
+               //            |            |            |            |            |            |
+               //       sy0  |      Txxxxx|............|............|............|............|
+               // y_crossing |            *xxxxx.......|............|............|............|
+               //            |            |     xxxxx..|............|............|............|
+               //            |            |     /-   xx*xxxx........|............|............|
+               //            |            | dy <       |    xxxxxx..|............|............|
+               //   y_final  |            |     \-     |          xx*xxx.........|............|
+               //       sy1  |            |            |            |   xxxxxB...|............|
+               //            |            |            |            |            |            |
+               //            |            |            |            |            |            |
+               //  y_bottom  +------------+------------+------------+------------+------------+
+               //
+               // goal is to measure the area covered by '.' in each pixel
+
+               // if x2 is right at the right edge of x1, y_crossing can blow up, github #1057
+               // @TODO: maybe test against sy1 rather than y_bottom?
+               if (y_crossing > y_bottom)
+                  y_crossing = y_bottom;
 
                sign = e->direction;
-               // area of the rectangle covered from y0..y_crossing
-               area = sign * (y_crossing-sy0);
-               // area of the triangle (x_top,y0), (x+1,y0), (x+1,y_crossing)
-               scanline[x1] += area * (1-((x_top - x1)+(x1+1-x1))/2);
 
-               step = sign * dy;
+               // area of the rectangle covered from sy0..y_crossing
+               area = sign * (y_crossing-sy0);
+
+               // area of the triangle (x_top,sy0), (x1+1,sy0), (x1+1,y_crossing)
+               scanline[x1] += stbtt__sized_triangle_area(area, x1+1 - x_top);
+
+               // check if final y_crossing is blown up; no test case for this
+               if (y_final > y_bottom) {
+                  int denom = (x2 - (x1+1));
+                  y_final = y_bottom;
+                  if (denom != 0) { // [DEAR IMGUI] Avoid div by zero (https://github.com/nothings/stb/issues/1316)
+                     dy = (y_final - y_crossing ) / denom; // if denom=0, y_final = y_crossing, so y_final <= y_bottom
+                  }
+               }
+
+               // in second pixel, area covered by line segment found in first pixel
+               // is always a rectangle 1 wide * the height of that line segment; this
+               // is exactly what the variable 'area' stores. it also gets a contribution
+               // from the line segment within it. the THIRD pixel will get the first
+               // pixel's rectangle contribution, the second pixel's rectangle contribution,
+               // and its own contribution. the 'own contribution' is the same in every pixel except
+               // the leftmost and rightmost, a trapezoid that slides down in each pixel.
+               // the second pixel's contribution to the third pixel will be the
+               // rectangle 1 wide times the height change in the second pixel, which is dy.
+
+               step = sign * dy * 1; // dy is dy/dx, change in y for every 1 change in x,
+               // which multiplied by 1-pixel-width is how much pixel area changes for each step in x
+               // so the area advances by 'step' every time
+
                for (x = x1+1; x < x2; ++x) {
-                  scanline[x] += area + step/2;
+                  scanline[x] += area + step/2; // area of trapezoid is 1*step/2
                   area += step;
                }
-               y_crossing += dy * (x2 - (x1+1));
+               STBTT_assert(STBTT_fabs(area) <= 1.01f); // accumulated error from area += step unless we round step down
+               STBTT_assert(sy1 > y_final-0.01f);
 
-               STBTT_assert(STBTT_fabs(area) <= 1.01f);
-
-               scanline[x2] += area + sign * (1-((x2-x2)+(x_bottom-x2))/2) * (sy1-y_crossing);
+               // area covered in the last pixel is the rectangle from all the pixels to the left,
+               // plus the trapezoid filled by the line segment in this pixel all the way to the right edge
+               scanline[x2] += area + sign * stbtt__position_trapezoid_area(sy1-y_final, (float) x2, x2+1.0f, x_bottom, x2+1.0f);
 
+               // the rest of the line is filled based on the total height of the line segment in this pixel
                scanline_fill[x2] += sign * (sy1-sy0);
             }
          } else {
@@ -3075,6 +3240,9 @@ static void stbtt__fill_active_edges_new(float *scanline, float *scanline_fill,
             // clipping logic. since this does not match the intended use
             // of this library, we use a different, very slow brute
             // force implementation
+            // note though that this does happen some of the time because
+            // x_top and x_bottom can be extrapolated at the top & bottom of
+            // the shape and actually lie outside the bounding box
             int x;
             for (x=0; x < len; ++x) {
                // cases:
@@ -3989,6 +4157,7 @@ static float stbtt__oversample_shift(int oversample)
 STBTT_DEF int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
 {
    int i,j,k;
+   int missing_glyph_added = 0;
 
    k=0;
    for (i=0; i < num_ranges; ++i) {
@@ -4000,7 +4169,7 @@ STBTT_DEF int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stb
          int x0,y0,x1,y1;
          int codepoint = ranges[i].array_of_unicode_codepoints == NULL ? ranges[i].first_unicode_codepoint_in_range + j : ranges[i].array_of_unicode_codepoints[j];
          int glyph = stbtt_FindGlyphIndex(info, codepoint);
-         if (glyph == 0 && spc->skip_missing) {
+         if (glyph == 0 && (spc->skip_missing || missing_glyph_added)) {
             rects[k].w = rects[k].h = 0;
          } else {
             stbtt_GetGlyphBitmapBoxSubpixel(info,glyph,
@@ -4010,6 +4179,8 @@ STBTT_DEF int stbtt_PackFontRangesGatherRects(stbtt_pack_context *spc, const stb
                                             &x0,&y0,&x1,&y1);
             rects[k].w = (stbrp_coord) (x1-x0 + spc->padding + spc->h_oversample-1);
             rects[k].h = (stbrp_coord) (y1-y0 + spc->padding + spc->v_oversample-1);
+            if (glyph == 0)
+               missing_glyph_added = 1;
          }
          ++k;
       }
@@ -4044,7 +4215,7 @@ STBTT_DEF void stbtt_MakeGlyphBitmapSubpixelPrefilter(const stbtt_fontinfo *info
 // rects array must be big enough to accommodate all characters in the given ranges
 STBTT_DEF int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const stbtt_fontinfo *info, stbtt_pack_range *ranges, int num_ranges, stbrp_rect *rects)
 {
-   int i,j,k, return_value = 1;
+   int i,j,k, missing_glyph = -1, return_value = 1;
 
    // save current values
    int old_h_over = spc->h_oversample;
@@ -4109,6 +4280,13 @@ STBTT_DEF int stbtt_PackFontRangesRenderIntoRects(stbtt_pack_context *spc, const
             bc->yoff     =       (float)  y0 * recip_v + sub_y;
             bc->xoff2    =                (x0 + r->w) * recip_h + sub_x;
             bc->yoff2    =                (y0 + r->h) * recip_v + sub_y;
+
+            if (glyph == 0)
+               missing_glyph = j;
+         } else if (spc->skip_missing) {
+            return_value = 0;
+         } else if (r->was_packed && r->w == 0 && r->h == 0 && missing_glyph >= 0) {
+            ranges[i].chardata_for_range[j] = ranges[i].chardata_for_range[missing_glyph];
          } else {
             return_value = 0; // if any fail, report failure
          }
@@ -4132,7 +4310,7 @@ STBTT_DEF void stbtt_PackFontRangesPackRects(stbtt_pack_context *spc, stbrp_rect
 STBTT_DEF int stbtt_PackFontRanges(stbtt_pack_context *spc, const unsigned char *fontdata, int font_index, stbtt_pack_range *ranges, int num_ranges)
 {
    stbtt_fontinfo info;
-   int i,j,n, return_value; // [DEAR IMGUI] removed = 1
+   int i, j, n, return_value; // [DEAR IMGUI] removed = 1;
    //stbrp_context *context = (stbrp_context *) spc->pack_info;
    stbrp_rect    *rects;
 
@@ -4301,15 +4479,14 @@ static int stbtt__compute_crossings_x(float x, float y, int nverts, stbtt_vertex
    float y_frac;
    int winding = 0;
 
-   orig[0] = x;
-   //orig[1] = y; // [DEAR IMGUI] commented double assignment
-
    // make sure y never passes through a vertex of the shape
    y_frac = (float) STBTT_fmod(y, 1.0f);
    if (y_frac < 0.01f)
       y += 0.01f;
    else if (y_frac > 0.99f)
       y -= 0.01f;
+
+   orig[0] = x;
    orig[1] = y;
 
    // test a ray from (-infinity,y) to (x,y)
@@ -4371,7 +4548,7 @@ static float stbtt__cuberoot( float x )
       return  (float) STBTT_pow( x,1.0f/3.0f);
 }
 
-// x^3 + c*x^2 + b*x + a = 0
+// x^3 + a*x^2 + b*x + c = 0
 static int stbtt__solve_cubic(float a, float b, float c, float* r)
 {
    float s = -a / 3;
@@ -4410,12 +4587,7 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
    int w,h;
    unsigned char *data;
 
-   // if one scale is 0, use same scale for both
-   if (scale_x == 0) scale_x = scale_y;
-   if (scale_y == 0) {
-      if (scale_x == 0) return NULL;  // if both scales are 0, return NULL
-      scale_y = scale_x;
-   }
+   if (scale == 0) return NULL;
 
    stbtt_GetGlyphBitmapBoxSubpixel(info, glyph, scale, scale, 0.0f,0.0f, &ix0,&iy0,&ix1,&iy1);
 
@@ -4481,18 +4653,17 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
             for (i=0; i < num_verts; ++i) {
                float x0 = verts[i].x*scale_x, y0 = verts[i].y*scale_y;
 
-               // check against every point here rather than inside line/curve primitives -- @TODO: wrong if multiple 'moves' in a row produce a garbage point, and given culling, probably more efficient to do within line/curve
-               float dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
+               if (verts[i].type == STBTT_vline && precompute[i] != 0.0f) {
+                  float x1 = verts[i-1].x*scale_x, y1 = verts[i-1].y*scale_y;
+
+                  float dist,dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
                   if (dist2 < min_dist*min_dist)
                      min_dist = (float) STBTT_sqrt(dist2);
 
-               if (verts[i].type == STBTT_vline) {
-                  float x1 = verts[i-1].x*scale_x, y1 = verts[i-1].y*scale_y;
-
                   // coarse culling against bbox
                   //if (sx > STBTT_min(x0,x1)-min_dist && sx < STBTT_max(x0,x1)+min_dist &&
                   //    sy > STBTT_min(y0,y1)-min_dist && sy < STBTT_max(y0,y1)+min_dist)
-                  float dist = (float) STBTT_fabs((x1-x0)*(y0-sy) - (y1-y0)*(x0-sx)) * precompute[i];
+                  dist = (float) STBTT_fabs((x1-x0)*(y0-sy) - (y1-y0)*(x0-sx)) * precompute[i];
                   STBTT_assert(i != 0);
                   if (dist < min_dist) {
                      // check position along line
@@ -4519,7 +4690,8 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
                      float ax = x1-x0, ay = y1-y0;
                      float bx = x0 - 2*x1 + x2, by = y0 - 2*y1 + y2;
                      float mx = x0 - sx, my = y0 - sy;
-                     float res[3],px,py,t,it;
+                     float res[3] = {0.f,0.f,0.f};
+                     float px,py,t,it,dist2;
                      float a_inv = precompute[i];
                      if (a_inv == 0.0) { // if a_inv is 0, it's 2nd degree so use quadratic formula
                         float a = 3*(ax*bx + ay*by);
@@ -4546,6 +4718,10 @@ STBTT_DEF unsigned char * stbtt_GetGlyphSDF(const stbtt_fontinfo *info, float sc
                         float d = (mx*ax+my*ay) * a_inv;
                         num = stbtt__solve_cubic(b, c, d, res);
                      }
+                     dist2 = (x0-sx)*(x0-sx) + (y0-sy)*(y0-sy);
+                     if (dist2 < min_dist*min_dist)
+                        min_dist = (float) STBTT_sqrt(dist2);
+
                      if (num >= 1 && res[0] >= 0.0f && res[0] <= 1.0f) {
                         t = res[0], it = 1.0f - t;
                         px = it*it*x0 + 2*t*it*x1 + t*t*x2;
@@ -4805,6 +4981,12 @@ STBTT_DEF int stbtt_CompareUTF8toUTF16_bigendian(const char *s1, int len1, const
 
 // FULL VERSION HISTORY
 //
+//   1.25 (2021-07-11) many fixes
+//   1.24 (2020-02-05) fix warning
+//   1.23 (2020-02-02) query SVG data for glyphs; query whole kerning table (but only kern not GPOS)
+//   1.22 (2019-08-11) minimize missing-glyph duplication; fix kerning if both 'GPOS' and 'kern' are defined
+//   1.21 (2019-02-25) fix warning
+//   1.20 (2019-02-07) PackFontRange skips missing codepoints; GetScaleFontVMetrics()
 //   1.19 (2018-02-11) OpenType GPOS kerning (horizontal only), STBTT_fmod
 //   1.18 (2018-01-29) add missing function
 //   1.17 (2017-07-23) make more arguments const; doc fix

UberGame1/GameScenes.hpp

@@ -1,48 +0,0 @@
-#pragma once
-
-#include "Scene\SceneBuilder.h"
-#include "Scene\Scene.h"
-
-#include "Scenes\MainScene.hpp"
-#include "Scenes\TestScene2.hpp"
-
-//#include "Logging\Logger.h"
-
-
-enum LasEscenas
-{
-	mainMenu = 0, nivel1
-};
-
-
-class GameScenes : public UE::SceneBuilder
-{
-public:
-	GameScenes()
-	{
-		
-	}
-
-	UE::Scene* InstanciateScene(int sceneID) override
-	{
-		switch (sceneID)
-		{
-		case LasEscenas::mainMenu:
-		{
-			UE::Scene* sc = new MainScene("Main");
-			return sc;
-			break;
-		}
-		case LasEscenas::nivel1:
-		{
-			UE::Scene* sc = new TestScene2("Test2");
-			return sc;
-			break;
-		}
-		default:
-			return nullptr;
-			break;
-		}
-	}
-
-};

UberGame1/Main.cpp

@@ -1,23 +1,22 @@
 #include <iostream>
 
-#include <glm\glm.hpp>
+#include <glm/glm.hpp>
 
-#include <ImGui\imgui.h>
-#include <ImGui\imgui_impl_sdl.h>
-#include <ImGui\imgui_impl_opengl3.h>
+#include <ImGui/imgui.h>
+#include <ImGui/imgui_impl_sdl.h>
+#include <ImGui/imgui_impl_opengl3.h>
 
-#include "UberGame1.h"
-#include "GameScenes.hpp"
 
+#include "Engine.h"
 #include "UberEngine.h"
 
 
-#include "Scenes\MainScene.hpp"
-#include "Scenes\TestScene2.hpp"
+#include "Scenes/MainScene.hpp"
+#include "Scenes/TestScene2.hpp"
 
 static bool _quit = false;
 
-void Init();
+int Init();
 void Load();
 void Loop();
 void Clean();
@@ -25,7 +24,9 @@ void Clean();
 int main(int argc, char* args[])
 {
 
-    Init();
+    //Si falla la inicialización, terminamos el juego.
+    if(Init() < 0) { return -1; }
+
     Load();
     Loop();
     Clean();
@@ -33,25 +34,28 @@ int main(int argc, char* args[])
     return 0;
 }
 
-
-void Init()
+int Init()
 {
-    UE::Logger::InitLogger();
-    
-    Game::InitGame();
+    if(UE::Engine::Init() < 0)
+    {
+        GAME_LOG_CRITICAL("No se ha podido cargar el motor.");
+        return -1;
+    }
 
+    return 0;
 }
 
 void Load()
 {
-    Game::GetAssetManager()->LoadAssetsFromFile("resources\\AssetList\\MainAssets.json");
-    Game::GetAssetManager()->ProcessAssetQueue();
+    UE::Engine::GetAssetManager()->LoadAssetsFromFile("resources/AssetList/MainAssets.json");
+    UE::Engine::GetAssetManager()->ProcessAssetQueue();
 
 
     //Cargamos la escena que queramos tras tener todos los Assets pertinentes cargados.
     //Si la escena contiene su propio AssetManager y los carga ella misma, no ser� necesario.
     //Game::GetSceneManager()->LoadScene("Main");
-    Game::GetSceneManager()->NewLoadScene(LasEscenas::mainMenu);
+    UE::Engine::GetSceneManager()->LoadScene(new MainScene());
+    UE::Engine::GetSceneManager()->SwitchScene("MainScene");
 }
 
 
@@ -83,10 +87,17 @@ void Loop()
 #pragma endregion
 
 
+    //Almacenamos el renderer para ya tenerlo por aquí.
+    UE::Renderer* UE_Renderer = UE::Engine::GetRenderer();
+
+
     while (!_quit)
     {
         UE::Time::StartFrame();
 
+        //Almacenamos la escena actual.
+        UE::Scene* currentScene = UE::Engine::GetSceneManager()->GetCurrentScenePtr();
+
         //TEMP Event Handler:
         SDL_Event eventHandler;
         while (SDL_PollEvent(&eventHandler) != 0)
@@ -98,25 +109,25 @@ void Loop()
             if (io.WantCaptureMouse) { continue; }
 
 
-            Game::GetSceneManager()->GetActiveScenePtr()->SceneHandleEvents(&eventHandler);
+            currentScene->SceneHandleEvents(&eventHandler);
             if (eventHandler.type == SDL_QUIT)
             {
                 _quit = true;
             }
             if (eventHandler.type == SDL_WINDOWEVENT && eventHandler.window.event == SDL_WINDOWEVENT_RESIZED)
             {
-                //GAME_LOG_CRITICAL("Window Size chaged {0}x{1}", eventHandler.window.data1, eventHandler.window.data2);
-                Game::GetRenderer()->SetScreenSize(eventHandler.window.data1, eventHandler.window.data2);
+                GAME_LOG_INFO("Window Size chaged {0}x{1}", eventHandler.window.data1, eventHandler.window.data2);
+                UE_Renderer->SetScreenSize(eventHandler.window.data1, eventHandler.window.data2);
             }
             if (eventHandler.type == SDL_KEYDOWN)
             {
                 switch (eventHandler.key.keysym.sym)
                 {
                 case SDLK_1:
-                    Game::GetSceneManager()->NewLoadScene(LasEscenas::mainMenu);
+                    UE::Engine::GetSceneManager()->LoadAndSwitchScene(new MainScene());
                     break;
                 case SDLK_2:
-                    Game::GetSceneManager()->NewLoadScene(LasEscenas::nivel1);
+                    UE::Engine::GetSceneManager()->LoadAndSwitchScene(new TestScene2());
                     break;
                 default:
                     break;
@@ -134,32 +145,34 @@ void Loop()
             GAME_LOG_TRACE("FPS: NULL / dT: {1}", UE::Time::deltaTime);
         }
 
+
+        UE::Camera* cam = UE_Renderer->GetCamera();
         if (keyStates[SDL_SCANCODE_W])
         {
-            glm::ivec2 camPos = Game::GetRenderer()->GetCamPosition();
+            glm::ivec2 camPos = cam->GetCamPosition();
             camPos.y -= 5;
-            Game::GetRenderer()->SetCamPosition(camPos.x, camPos.y);
+            cam->SetCamPosition(camPos.x, camPos.y);
         }
         if (keyStates[SDL_SCANCODE_S])
         {
-            glm::ivec2 camPos = Game::GetRenderer()->GetCamPosition();
+            glm::ivec2 camPos = cam->GetCamPosition();
             camPos.y += 5;
-            Game::GetRenderer()->SetCamPosition(camPos.x, camPos.y);
+            cam->SetCamPosition(camPos.x, camPos.y);
         }
         if (keyStates[SDL_SCANCODE_D])
         {
-            glm::ivec2 camPos = Game::GetRenderer()->GetCamPosition();
+            glm::ivec2 camPos = cam->GetCamPosition();
             camPos.x += 5;
-            Game::GetRenderer()->SetCamPosition(camPos.x, camPos.y);
+            cam->SetCamPosition(camPos.x, camPos.y);
         }
         if (keyStates[SDL_SCANCODE_A])
         {
-            glm::ivec2 camPos = Game::GetRenderer()->GetCamPosition();
+            glm::ivec2 camPos = cam->GetCamPosition();
             camPos.x -= 5;
-            Game::GetRenderer()->SetCamPosition(camPos.x, camPos.y);
+            cam->SetCamPosition(camPos.x, camPos.y);
         }
 
-        Game::GetSceneManager()->GetActiveScenePtr()->SceneUpdate();
+        currentScene->SceneUpdate();
 
         //Game::GetRenderer()->QueueDrawCall(4, DestR2, test1);
         //Game::GetRenderer()->QueueDrawCall(1, DestR, background);
@@ -170,20 +183,20 @@ void Loop()
         // 
 
         //Iniciamos un nuevo Frame.
-        Game::GetRenderer()->NewFrame();
+        UE_Renderer->NewFrame();
 
         //Renderiza la escena.
-        Game::GetSceneManager()->GetActiveScenePtr()->SceneRender();
+        currentScene->SceneRender();
 
         //As� podemos renderizar cosas de ImGui cuando estemos entre NewFrame y EndFrame.
         bool show = true;
         ImGui::ShowDemoWindow(&show);
 
         //Dibuja las cosas del Renderer.
-        Game::GetRenderer()->RenderData();
+        UE_Renderer->RenderData();
 
         //Terminamos el Frame.
-        Game::GetRenderer()->EndFrame();
+        UE_Renderer->EndFrame();
 
         UE::Time::EndFrame();
 
@@ -194,7 +207,5 @@ void Loop()
 
 void Clean()
 {
-    Game::CleanGame();
-
-    SDL_Quit();
+    UE::Engine::Clean();
 }

UberGame1/Scenes/MainScene.hpp

@@ -1,15 +1,16 @@
 //#include "UberEngine.h"
 #pragma once
 
-#include "Scene\Scene.h"
-#include "Render\Renderer.h"
-#include "Assets\AssetManager.h"
-#include "Logging\Logger.h"
+#include "Engine.h"
+#include "Scene/Scene.h"
+#include "Render/Renderer.h"
+#include "Assets/AssetManager.h"
+#include "Logging/Logger.h"
 
-#include "Drawables\Sprite.h"
-#include "Drawables\TextBox.h"
+#include "Drawables/Sprite.h"
+#include "Drawables/TextBox.h"
 
-#include "Time\Time.h"
+#include "Time/Time.h"
 
 
 #include <iostream>
@@ -17,27 +18,37 @@
 #include <SDL.h>
 #include <SDL_ttf.h>
 
-#include <ImGui\imgui.h>
+#include <ImGui/imgui.h>
 
 class MainScene : public UE::Scene
 {
 public:
 
-	MainScene(std::string sceneName) : Scene(sceneName) {}
+	MainScene() : Scene("MainScene")
+	{
+		//_sceneName = "MainScene";
+	}
 
 
 	void SceneLoad() override
 	{
 		UE_LOG_INFO("Escena {0} ha sido cargada", _sceneName);
 
-		UE::AssetManager* as = Game::GetAssetManager();
+		//Configuramos las cosas del Renderer.
+		//UE::Engine::GetRenderer()->SetCamPosition(150, 25);
+
+		SDL_Color newColor{40, 160, 195, 255};
+		UE::Engine::GetRenderer()->SetDrawingColor(newColor);
+
+
+		UE::AssetManager* as = UE::Engine::GetAssetManager();
 		UE::Texture* test1Texture = as->getTexture("test1");
 
 		UE::Sprite sp1(test1Texture, 0, 2, glm::vec2(55, 60), glm::vec2(100, 100));
 
 		UE::Sprite sp2(test1Texture, 0, 1, glm::vec2(50, 45), glm::vec2(145, 145));
 
-		UE::Sprite bg(as->getTexture("bg1"), 1, 0, glm::vec2(0, 0), Game::GetRenderer()->GetScreenSize());
+		UE::Sprite bg(as->getTexture("bg1"), 1, 0, glm::vec2(0, 0), UE::Engine::GetRenderer()->GetScreenSize());
 
 		UE::Sprite mapSP(as->getTexture("PruebaMap"), 0, 2, glm::vec2(50, 45), glm::vec2(145, 145));
 
@@ -62,9 +73,9 @@ public:
 		//UE_LOG_INFO("Escena {0} UPDATE", _sceneName);
 
 		UE::Renderer* renderer;
-		renderer = Game::GetRenderer();
+		renderer = UE::Engine::GetRenderer();
 
-		glm::vec2 screenSize = Game::GetRenderer()->GetScreenSize();
+		glm::vec2 screenSize = UE::Engine::GetRenderer()->GetScreenSize();
 
 		UE::Sprite& sp1 = sprites.at(0);
 		glm::vec2 pos = sp1.GetPosition();
@@ -78,11 +89,11 @@ public:
 	void SceneRender() override 
 	{
 		UE::Renderer* renderer;
-		renderer = Game::GetRenderer();
+		renderer = UE::Engine::GetRenderer();
 
 		for (UE::Sprite& sp : sprites)
 		{
-			//Si el obj. no está activo, lo saltamos.
+			//Si el obj. no est� activo, lo saltamos.
 			if (sp.IsActive()) 
 			{
 				renderer->Render(sp);
@@ -210,7 +221,7 @@ private:
 				{
 					sp.SetTextureRect(textRect);
 				}
-				//Añadir un input para modificar la layer.
+				//A�adir un input para modificar la layer.
 
 			}
 
@@ -236,7 +247,7 @@ private:
 
 	void AssetMngGUI() 
 	{
-		UE::AssetManager* asmng = Game::GetAssetManager();
+		UE::AssetManager* asmng = UE::Engine::GetAssetManager();
 
 		ImGui::Begin("Asset Manager Inspector", &assetMngGUI);
 		

UberGame1/Scenes/TestScene2.hpp

@@ -1,13 +1,13 @@
 #pragma once
 
-#include "Scene\Scene.h"
-#include "Render\Renderer.h"
-#include "Logging\Logger.h"
+#include "Scene/Scene.h"
+#include "Render/Renderer.h"
+#include "Logging/Logger.h"
 
-#include "Assets\AssetManager.h"
-#include "Assets\Texture.h"
+#include "Assets/AssetManager.h"
+#include "Assets/Texture.h"
 
-#include "Drawables\Sprite.h"
+#include "Drawables/Sprite.h"
 
 
 #include <iostream>
@@ -18,7 +18,10 @@ class TestScene2 : public UE::Scene
 {
 public:
 
-	TestScene2(std::string sceneName) : Scene(sceneName) {}
+	TestScene2() : Scene("TestScene")
+	{
+		//_sceneName = "TestScene";
+	}
 
 	void SceneLoad() override
 	{
@@ -26,7 +29,7 @@ public:
 
 		srand(255);
 
-		UE::AssetManager* as = Game::GetAssetManager();
+		UE::AssetManager* as = UE::Engine::GetAssetManager();
 
 		UE::Texture* tx = as->getTexture("PruebaMap");
 
@@ -55,11 +58,11 @@ public:
 	void SceneRender() override
 	{
 		UE::Renderer* renderer;
-		renderer = Game::GetRenderer();
+		renderer = UE::Engine::GetRenderer();
 
 		for (UE::Sprite& sp : sprites)
 		{
-			//Si el obj. no está activo, lo saltamos.
+			//Si el obj. no est� activo, lo saltamos.
 			if (sp.IsActive())
 			{
 				renderer->Render(sp);
@@ -85,7 +88,7 @@ public:
 		}
 		if (event->type == SDL_MOUSEBUTTONDOWN)
 		{
-			UE::Renderer* rend = Game::GetRenderer();
+			UE::Renderer* rend = UE::Engine::GetRenderer();
 			glm::ivec2 mPos(event->button.x, event->button.y);
 			glm::ivec2 wPos = rend->ScreenToWorldCoords(mPos);
 			GAME_LOG_TRACE("Posicion del raton: \n\tPantalla: {0}x{1}, Mundo: {2}x{3}: ", mPos.x, mPos.y, wPos.x, wPos.y);
@@ -105,11 +108,12 @@ private:
 	{
 		SDL_Rect mouseRect = { wPos.x, wPos.y, 2, 2 };
 
+		//Esto hay que optimizarlo calculando el ID con la posición del ratón.
 		for (int i = 0; i < sprites.size(); i++)
 		{
 			UE::Sprite& sp = sprites.at(i);
-
-			if (SDL_HasIntersection(&mouseRect, &sp.getPositionRect()))
+			SDL_Rect sp_Pos = sp.getPositionRect();
+			if (SDL_HasIntersection(&mouseRect, &sp_Pos))
 			{
 				int i = rand() % 5;
 				sp.SetTextureRect(i);
@@ -179,7 +183,7 @@ private:
 				{
 					sp.SetTextureRect(textRect);
 				}
-				//Añadir un input para modificar la layer.
+				//A�adir un input para modificar la layer.
 
 			}
 

UberGame1/UberGame1.cpp

@@ -1,49 +0,0 @@
-#include "UberGame1.h"
-
-#include "Logging\Logger.h"
-#include "Render\Renderer.h"
-#include "Assets\AssetManager.h"
-
-#include "Scene\SceneManager.h"
-#include "Scene\SceneBuilder.h"
-
-#include "GameScenes.hpp"
-
-//Sobrecarga de SceneBuilder que devuelve las escenas correctas para este juego.
-//#include "GameScenes.hpp" 
-
-UE::Renderer* Game::mainRenderer;
-UE::AssetManager* Game::asManager;
-UE::SceneManager* Game::scManager;
-
-GameScenes Game::_sceneBuilder;
-
-void Game::InitGame()
-{
-    mainRenderer = new UE::Renderer(640, 480, 5);
-    mainRenderer->InitRenderer();
-
-    UE_LOG_INFO("Renderer Created.");
-
-    asManager = new UE::AssetManager(mainRenderer->GetSDLRenderer());
-    asManager->InitAssetManager();
-    UE_LOG_INFO("AssetManager Created.");
-
-    //Creamos el SceneBuilder de este juego.
-    _sceneBuilder = GameScenes();
-
-    scManager = new UE::SceneManager();
-    scManager->InitSceneManager(&_sceneBuilder);
-}
-
-void Game::CleanGame()
-{
-    asManager->CleanAssetManager();
-    delete asManager;
-
-    mainRenderer->CleanRenderer();
-    delete mainRenderer;
-
-    scManager->CleanSceneManager();
-    delete scManager;
-}

UberGame1/UberGame1.h

@@ -1,30 +0,0 @@
-#pragma once
-
-namespace UE
-{
-	class Renderer;
-	class AssetManager;
-	class SceneManager;
-	class SceneBuilder;
-}
-
-class GameScenes;
-
-class Game
-{
-public:
-	static void InitGame();
-	static void CleanGame();
-
-	inline static UE::Renderer* GetRenderer() { return mainRenderer; }
-	inline static UE::AssetManager* GetAssetManager() { return asManager; }
-	inline static UE::SceneManager* GetSceneManager() { return scManager;  }
-
-
-private:
-	static UE::Renderer* mainRenderer;
-	static UE::AssetManager* asManager;
-	static UE::SceneManager* scManager;
-
-	static GameScenes _sceneBuilder;
-};

null.d

@@ -0,0 +1 @@
+null.o: /dev/null

premake5.lua

@@ -13,6 +13,7 @@ workspace (""..GameName.."")
 project (""..GameName.."")
     kind      "ConsoleApp"
     language  "C++"
+    cppdialect "C++17"
 
     location  ""
 
@@ -38,47 +39,63 @@ project (""..GameName.."")
         -- "UberEngine/vendor/glm",
         -- "UberEngine/vendor/ImGui",
         -- "UberEngine/vendor/json",  --Header-Only
-        "UberEngine/vendor/SDL/include",
-        "UberEngine/vendor/SDL2_image/include",
-        "UberEngine/vendor/SDL2_ttf/include",
         "UberEngine/vendor/spdlog/include", 
         "UberEngine/vendor",
         "UberEngine/src"
 
     }
-    libdirs      { "UberEngine/vendor/SDL/lib/x64", "UberEngine/vendor/SDL2_image/lib/x64", "UberEngine/vendor/SDL2_ttf/lib/x64" }
-    links        { "opengl32.lib", "SDL2.lib", "SDL2main.lib", "SDL2_image.lib", "SDL2_ttf.lib" }
 
-    filter "system:windows"
-        cppdialect    "C++17"
-        systemversion "latest"
 
 
     filter "configurations:Debug"
         defines { "DEBUG" }
         symbols "On"
-
-            --libdirs { "UberEngine/vendor/SFML/lib/Debug" }
-            --links   { "sfml-audio-d.lib", "sfml-graphics-d.lib", "sfml-network-d.lib", "sfml-main-d.lib", "sfml-system-d.lib", "sfml-window-d.lib" }
         postbuildcommands 
         { 
-                "xcopy UberEngine\\vendor\\SDL\\lib\\x64\\*.dll bin\\Debug\\ /y /f",
-                "xcopy UberEngine\\vendor\\SDL2_image\\lib\\x64\\*.dll bin\\Debug\\ /y /f",
-                "xcopy UberEngine\\vendor\\SDL2_ttf\\lib\\x64\\*.dll bin\\Debug\\ /y /f",
-                "xcopy resources\\ bin\\Debug\\resources\\ /e /y /f"
+            "{COPYDIR} UberEngine/vendor/SDL/lib/x64/*.dll bin/Debug/",
+            "{COPYDIR} UberEngine/vendor/SDL2_image/lib/x64/*.dll bin/Debug/",
+            "{COPYDIR} UberEngine/vendor/SDL2_ttf/lib/x64/*.dll bin/Debug/",
+            "{COPYDIR} resources/ bin/Debug/resources/"
         }
 
 
     filter "configurations:Release"
         defines { "NDEBUG" }
         optimize "On"
-
-            --libdirs { "UberEngine/vendor/SFML/lib/Release" }
-            --links   { "sfml-audio.lib", "sfml-graphics.lib", "sfml-network.lib", "sfml-main.lib", "sfml-system.lib", "sfml-window.lib" }
         postbuildcommands 
         { 
-                "xcopy UberEngine\\vendor\\SDL\\lib\\x64\\*.dll bin\\Release\\ /y /f",
-                "xcopy UberEngine\\vendor\\SDL2_image\\lib\\x64\\*.dll bin\\Release\\ /y /f",
-                "xcopy UberEngine\\vendor\\SDL2_ttf\\lib\\x64\\*.dll bin\\Release\\ /y /f",
-                "xcopy resources\\ bin\\Release\\resources\\ /e /y /f"
+            "{COPYDIR} UberEngine/vendor/SDL/lib/x64/*.dll bin/Release/",
+            "{COPYDIR} UberEngine/vendor/SDL2_image/lib/x64/*.dll bin/Release/",
+            "{COPYDIR} UberEngine/vendor/SDL2_ttf/lib/x64/*.dll bin/Release/",
+            "{COPYDIR} resources/ bin/Release/resources/"
         }
+
+
+    -------------------------------------------------
+    -- Opciones de Windows.
+    -------------------------------------------------
+    filter "system:windows"
+        systemversion "latest"
+        includedirs  
+        {
+            "UberEngine/vendor/SDL/include",
+            "UberEngine/vendor/SDL2_image/include",
+            "UberEngine/vendor/SDL2_ttf/include",
+        }
+
+        libdirs      { "UberEngine/vendor/SDL/lib/x64", "UberEngine/vendor/SDL2_image/lib/x64", "UberEngine/vendor/SDL2_ttf/lib/x64" }
+        links        { "opengl32.lib", "SDL2.lib", "SDL2main.lib", "SDL2_image.lib", "SDL2_ttf.lib" }
+        defines      { "SDL_VIDEO_DRIVER_WINDOWS" }
+
+
+    -------------------------------------------------
+    -- Opciones de Linux.
+    -------------------------------------------------
+    filter "system:linux"
+        includedirs  
+        {
+            "/usr/include/SDL2/"
+        }
+
+        links        { "SDL2", "SDL2main", "SDL2_image", "SDL2_ttf", "dl", "GL", "GLEW"}
+        defines      { "SDL_VIDEO_DRIVER_X11" }