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1 files changed, 1792 insertions, 0 deletions

diff --git a/raylib/src/platforms/rcore_web.c b/raylib/src/platforms/rcore_web.c
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+++ b/raylib/src/platforms/rcore_web.c
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+/**********************************************************************************************
+*
+*   rcore_web - Functions to manage window, graphics device and inputs
+*
+*   PLATFORM: WEB
+*       - HTML5 (WebAssembly)
+*
+*   LIMITATIONS:
+*       - Limitation 01
+*       - Limitation 02
+*
+*   POSSIBLE IMPROVEMENTS:
+*       - Replace glfw3 dependency by direct browser API calls (same as library_glfw3.js)
+*
+*   ADDITIONAL NOTES:
+*       - TRACELOG() function is located in raylib [utils] module
+*
+*   CONFIGURATION:
+*       #define RCORE_PLATFORM_CUSTOM_FLAG
+*           Custom flag for rcore on target platform -not used-
+*
+*   DEPENDENCIES:
+*       - emscripten: Allow interaction between browser API and C
+*       - gestures: Gestures system for touch-ready devices (or simulated from mouse inputs)
+*
+*
+*   LICENSE: zlib/libpng
+*
+*   Copyright (c) 2013-2024 Ramon Santamaria (@raysan5) and contributors
+*
+*   This software is provided "as-is", without any express or implied warranty. In no event
+*   will the authors be held liable for any damages arising from the use of this software.
+*
+*   Permission is granted to anyone to use this software for any purpose, including commercial
+*   applications, and to alter it and redistribute it freely, subject to the following restrictions:
+*
+*     1. The origin of this software must not be misrepresented; you must not claim that you
+*     wrote the original software. If you use this software in a product, an acknowledgment
+*     in the product documentation would be appreciated but is not required.
+*
+*     2. Altered source versions must be plainly marked as such, and must not be misrepresented
+*     as being the original software.
+*
+*     3. This notice may not be removed or altered from any source distribution.
+*
+**********************************************************************************************/
+
+#define GLFW_INCLUDE_NONE       // Disable the standard OpenGL header inclusion on GLFW3
+                                // NOTE: Already provided by rlgl implementation (on glad.h)
+#include "GLFW/glfw3.h"         // GLFW3: Windows, OpenGL context and Input management
+
+#include <emscripten/emscripten.h>      // Emscripten functionality for C
+#include <emscripten/html5.h>           // Emscripten HTML5 library
+
+#include <sys/time.h>   // Required for: timespec, nanosleep(), select() - POSIX
+
+//----------------------------------------------------------------------------------
+// Defines and Macros
+//----------------------------------------------------------------------------------
+// TODO: HACK: Added flag if not provided by GLFW when using external library
+// Latest GLFW release (GLFW 3.3.8) does not implement this flag, it was added for 3.4.0-dev
+#if !defined(GLFW_MOUSE_PASSTHROUGH)
+    #define GLFW_MOUSE_PASSTHROUGH      0x0002000D
+#endif
+
+#if (_POSIX_C_SOURCE < 199309L)
+    #undef _POSIX_C_SOURCE
+    #define _POSIX_C_SOURCE 199309L     // Required for: CLOCK_MONOTONIC if compiled with c99 without gnu ext.
+#endif
+
+//----------------------------------------------------------------------------------
+// Types and Structures Definition
+//----------------------------------------------------------------------------------
+typedef struct {
+    GLFWwindow *handle;                 // GLFW window handle (graphic device)
+    bool ourFullscreen;                 // Internal var to filter our handling of fullscreen vs the user handling of fullscreen
+    int unmaximizedWidth;               // Internal var to store the unmaximized window (canvas) width
+    int unmaximizedHeight;              // Internal var to store the unmaximized window (canvas) height
+} PlatformData;
+
+//----------------------------------------------------------------------------------
+// Global Variables Definition
+//----------------------------------------------------------------------------------
+extern CoreData CORE;                   // Global CORE state context
+
+static PlatformData platform = { 0 };   // Platform specific data
+
+//----------------------------------------------------------------------------------
+// Local Variables Definition
+//----------------------------------------------------------------------------------
+static const char cursorLUT[11][12] = {
+    "default",     // 0  MOUSE_CURSOR_DEFAULT
+    "default",     // 1  MOUSE_CURSOR_ARROW
+    "text",        // 2  MOUSE_CURSOR_IBEAM
+    "crosshair",   // 3  MOUSE_CURSOR_CROSSHAIR
+    "pointer",     // 4  MOUSE_CURSOR_POINTING_HAND
+    "ew-resize",   // 5  MOUSE_CURSOR_RESIZE_EW
+    "ns-resize",   // 6  MOUSE_CURSOR_RESIZE_NS
+    "nwse-resize", // 7  MOUSE_CURSOR_RESIZE_NWSE
+    "nesw-resize", // 8  MOUSE_CURSOR_RESIZE_NESW
+    "move",        // 9  MOUSE_CURSOR_RESIZE_ALL
+    "not-allowed"  // 10 MOUSE_CURSOR_NOT_ALLOWED
+};
+
+Vector2 lockedMousePos = { 0 };
+
+//----------------------------------------------------------------------------------
+// Module Internal Functions Declaration
+//----------------------------------------------------------------------------------
+int InitPlatform(void);          // Initialize platform (graphics, inputs and more)
+void ClosePlatform(void);        // Close platform
+
+// Error callback event
+static void ErrorCallback(int error, const char *description);                      // GLFW3 Error Callback, runs on GLFW3 error
+
+// Window callbacks events
+static void WindowSizeCallback(GLFWwindow *window, int width, int height);              // GLFW3 WindowSize Callback, runs when window is resized
+static void WindowIconifyCallback(GLFWwindow *window, int iconified);                   // GLFW3 WindowIconify Callback, runs when window is minimized/restored
+//static void WindowMaximizeCallback(GLFWwindow *window, int maximized);                // GLFW3 Window Maximize Callback, runs when window is maximized
+static void WindowFocusCallback(GLFWwindow *window, int focused);                       // GLFW3 WindowFocus Callback, runs when window get/lose focus
+static void WindowDropCallback(GLFWwindow *window, int count, const char **paths);      // GLFW3 Window Drop Callback, runs when drop files into window
+static void WindowContentScaleCallback(GLFWwindow *window, float scalex, float scaley); // GLFW3 Window Content Scale Callback, runs when window changes scale
+
+// Input callbacks events
+static void KeyCallback(GLFWwindow *window, int key, int scancode, int action, int mods); // GLFW3 Keyboard Callback, runs on key pressed
+static void CharCallback(GLFWwindow *window, unsigned int key);                           // GLFW3 Char Key Callback, runs on key pressed (get char value)
+static void MouseButtonCallback(GLFWwindow *window, int button, int action, int mods);    // GLFW3 Mouse Button Callback, runs on mouse button pressed
+static void MouseCursorPosCallback(GLFWwindow *window, double x, double y);               // GLFW3 Cursor Position Callback, runs on mouse move
+static void MouseScrollCallback(GLFWwindow *window, double xoffset, double yoffset);      // GLFW3 Srolling Callback, runs on mouse wheel
+static void CursorEnterCallback(GLFWwindow *window, int enter);                           // GLFW3 Cursor Enter Callback, cursor enters client area
+
+// Emscripten window callback events
+static EM_BOOL EmscriptenFullscreenChangeCallback(int eventType, const EmscriptenFullscreenChangeEvent *event, void *userData);
+// static EM_BOOL EmscriptenWindowResizedCallback(int eventType, const EmscriptenUiEvent *event, void *userData);
+static EM_BOOL EmscriptenResizeCallback(int eventType, const EmscriptenUiEvent *event, void *userData);
+
+// Emscripten input callback events
+static EM_BOOL EmscriptenMouseMoveCallback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData);
+static EM_BOOL EmscriptenMouseCallback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData);
+static EM_BOOL EmscriptenPointerlockCallback(int eventType, const EmscriptenPointerlockChangeEvent *pointerlockChangeEvent, void *userData);
+static EM_BOOL EmscriptenTouchCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData);
+static EM_BOOL EmscriptenGamepadCallback(int eventType, const EmscriptenGamepadEvent *gamepadEvent, void *userData);
+
+//----------------------------------------------------------------------------------
+// Module Functions Declaration
+//----------------------------------------------------------------------------------
+// NOTE: Functions declaration is provided by raylib.h
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition: Window and Graphics Device
+//----------------------------------------------------------------------------------
+
+// Check if application should close
+bool WindowShouldClose(void)
+{
+    // Emterpreter-Async required to run sync code
+    // https://github.com/emscripten-core/emscripten/wiki/Emterpreter#emterpreter-async-run-synchronous-code
+    // By default, this function is never called on a web-ready raylib example because we encapsulate
+    // frame code in a UpdateDrawFrame() function, to allow browser manage execution asynchronously
+    // but now emscripten allows sync code to be executed in an interpreted way, using emterpreter!
+    emscripten_sleep(16);
+    return false;
+}
+
+// Toggle fullscreen mode
+void ToggleFullscreen(void)
+{
+    platform.ourFullscreen = true;
+    bool enterFullscreen = false;
+
+    const bool wasFullscreen = EM_ASM_INT( { if (document.fullscreenElement) return 1; }, 0);
+    if (wasFullscreen)
+    {
+        if (CORE.Window.flags & FLAG_FULLSCREEN_MODE) enterFullscreen = false;
+        else if (CORE.Window.flags & FLAG_BORDERLESS_WINDOWED_MODE) enterFullscreen = true;
+        else
+        {
+            const int canvasWidth = EM_ASM_INT( { return document.getElementById('canvas').width; }, 0);
+            const int canvasStyleWidth = EM_ASM_INT( { return parseInt(document.getElementById('canvas').style.width); }, 0);
+            if (canvasStyleWidth > canvasWidth) enterFullscreen = false;
+            else enterFullscreen = true;
+        }
+
+        EM_ASM(document.exitFullscreen(););
+
+        CORE.Window.fullscreen = false;
+        CORE.Window.flags &= ~FLAG_FULLSCREEN_MODE;
+        CORE.Window.flags &= ~FLAG_BORDERLESS_WINDOWED_MODE;
+    }
+    else enterFullscreen = true;
+
+    if (enterFullscreen)
+    {
+        // NOTE: The setTimeouts handle the browser mode change delay
+        EM_ASM
+        (
+            setTimeout(function()
+            {
+                Module.requestFullscreen(false, false);
+            }, 100);
+        );
+        CORE.Window.fullscreen = true;
+        CORE.Window.flags |= FLAG_FULLSCREEN_MODE;
+    }
+
+    // NOTE: Old notes below:
+    /*
+        EM_ASM
+        (
+            // This strategy works well while using raylib minimal web shell for emscripten,
+            // it re-scales the canvas to fullscreen using monitor resolution, for tools this
+            // is a good strategy but maybe games prefer to keep current canvas resolution and
+            // display it in fullscreen, adjusting monitor resolution if possible
+            if (document.fullscreenElement) document.exitFullscreen();
+            else Module.requestFullscreen(true, true); //false, true);
+        );
+    */
+    // EM_ASM(Module.requestFullscreen(false, false););
+    /*
+        if (!CORE.Window.fullscreen)
+        {
+            // Option 1: Request fullscreen for the canvas element
+            // This option does not seem to work at all:
+            // emscripten_request_pointerlock() and emscripten_request_fullscreen() are affected by web security,
+            // the user must click once on the canvas to hide the pointer or transition to full screen
+            //emscripten_request_fullscreen("#canvas", false);
+
+            // Option 2: Request fullscreen for the canvas element with strategy
+            // This option does not seem to work at all
+            // Ref: https://github.com/emscripten-core/emscripten/issues/5124
+            // EmscriptenFullscreenStrategy strategy = {
+                // .scaleMode = EMSCRIPTEN_FULLSCREEN_SCALE_STRETCH, //EMSCRIPTEN_FULLSCREEN_SCALE_ASPECT,
+                // .canvasResolutionScaleMode = EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_STDDEF,
+                // .filteringMode = EMSCRIPTEN_FULLSCREEN_FILTERING_DEFAULT,
+                // .canvasResizedCallback = EmscriptenWindowResizedCallback,
+                // .canvasResizedCallbackUserData = NULL
+            // };
+            //emscripten_request_fullscreen_strategy("#canvas", EM_FALSE, &strategy);
+
+            // Option 3: Request fullscreen for the canvas element with strategy
+            // It works as expected but only inside the browser (client area)
+            EmscriptenFullscreenStrategy strategy = {
+                .scaleMode = EMSCRIPTEN_FULLSCREEN_SCALE_ASPECT,
+                .canvasResolutionScaleMode = EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_STDDEF,
+                .filteringMode = EMSCRIPTEN_FULLSCREEN_FILTERING_DEFAULT,
+                .canvasResizedCallback = EmscriptenWindowResizedCallback,
+                .canvasResizedCallbackUserData = NULL
+            };
+            emscripten_enter_soft_fullscreen("#canvas", &strategy);
+
+            int width, height;
+            emscripten_get_canvas_element_size("#canvas", &width, &height);
+            TRACELOG(LOG_WARNING, "Emscripten: Enter fullscreen: Canvas size: %i x %i", width, height);
+
+            CORE.Window.fullscreen = true;          // Toggle fullscreen flag
+            CORE.Window.flags |= FLAG_FULLSCREEN_MODE;
+        }
+        else
+        {
+            //emscripten_exit_fullscreen();
+            //emscripten_exit_soft_fullscreen();
+
+            int width, height;
+            emscripten_get_canvas_element_size("#canvas", &width, &height);
+            TRACELOG(LOG_WARNING, "Emscripten: Exit fullscreen: Canvas size: %i x %i", width, height);
+
+            CORE.Window.fullscreen = false;          // Toggle fullscreen flag
+            CORE.Window.flags &= ~FLAG_FULLSCREEN_MODE;
+        }
+    */
+}
+
+// Toggle borderless windowed mode
+void ToggleBorderlessWindowed(void)
+{
+    platform.ourFullscreen = true;
+    bool enterBorderless = false;
+
+    const bool wasFullscreen = EM_ASM_INT( { if (document.fullscreenElement) return 1; }, 0);
+    if (wasFullscreen)
+    {
+        if (CORE.Window.flags & FLAG_BORDERLESS_WINDOWED_MODE) enterBorderless = false;
+        else if (CORE.Window.flags & FLAG_FULLSCREEN_MODE) enterBorderless = true;
+        else
+        {
+            const int canvasWidth = EM_ASM_INT( { return document.getElementById('canvas').width; }, 0);
+            const int screenWidth = EM_ASM_INT( { return screen.width; }, 0);
+            if (screenWidth == canvasWidth) enterBorderless = false;
+            else enterBorderless = true;
+        }
+
+        EM_ASM(document.exitFullscreen(););
+
+        CORE.Window.fullscreen = false;
+        CORE.Window.flags &= ~FLAG_FULLSCREEN_MODE;
+        CORE.Window.flags &= ~FLAG_BORDERLESS_WINDOWED_MODE;
+    }
+    else enterBorderless = true;
+
+    if (enterBorderless)
+    {
+        // NOTE: 1. The setTimeouts handle the browser mode change delay
+        //       2. The style unset handles the possibility of a width="value%" like on the default shell.html file
+        EM_ASM
+        (
+            setTimeout(function()
+            {
+                Module.requestFullscreen(false, true);
+                setTimeout(function()
+                {
+                    canvas.style.width="unset";
+                }, 100);
+            }, 100);
+        );
+        CORE.Window.flags |= FLAG_BORDERLESS_WINDOWED_MODE;
+    }
+}
+
+// Set window state: maximized, if resizable
+void MaximizeWindow(void)
+{
+    if (glfwGetWindowAttrib(platform.handle, GLFW_RESIZABLE) == GLFW_TRUE && !(CORE.Window.flags & FLAG_WINDOW_MAXIMIZED))
+    {
+        platform.unmaximizedWidth = CORE.Window.screen.width;
+        platform.unmaximizedHeight = CORE.Window.screen.height;
+
+        const int tabWidth = EM_ASM_INT( return window.innerWidth; );
+        const int tabHeight = EM_ASM_INT( return window.innerHeight; );
+
+        if (tabWidth && tabHeight) glfwSetWindowSize(platform.handle, tabWidth, tabHeight);
+
+        CORE.Window.flags |= FLAG_WINDOW_MAXIMIZED;
+    }
+}
+
+// Set window state: minimized
+void MinimizeWindow(void)
+{
+    TRACELOG(LOG_WARNING, "MinimizeWindow() not available on target platform");
+}
+
+// Set window state: not minimized/maximized
+void RestoreWindow(void)
+{
+    if (glfwGetWindowAttrib(platform.handle, GLFW_RESIZABLE) == GLFW_TRUE && (CORE.Window.flags & FLAG_WINDOW_MAXIMIZED))
+    {
+        if (platform.unmaximizedWidth && platform.unmaximizedHeight) glfwSetWindowSize(platform.handle, platform.unmaximizedWidth, platform.unmaximizedHeight);
+
+        CORE.Window.flags &= ~FLAG_WINDOW_MAXIMIZED;
+    }
+}
+
+// Set window configuration state using flags
+void SetWindowState(unsigned int flags)
+{
+    // Check previous state and requested state to apply required changes
+    // NOTE: In most cases the functions already change the flags internally
+
+    // State change: FLAG_VSYNC_HINT
+    if ((flags & FLAG_VSYNC_HINT) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_VSYNC_HINT) not available on target platform");
+    }
+
+    // State change: FLAG_BORDERLESS_WINDOWED_MODE
+    if ((flags & FLAG_BORDERLESS_WINDOWED_MODE) > 0)
+    {
+        // NOTE: Window state flag updated inside ToggleBorderlessWindowed() function
+        const bool wasFullscreen = EM_ASM_INT( { if (document.fullscreenElement) return 1; }, 0);
+        if (wasFullscreen)
+        {
+            const int canvasWidth = EM_ASM_INT( { return document.getElementById('canvas').width; }, 0);
+            const int canvasStyleWidth = EM_ASM_INT( { return parseInt(document.getElementById('canvas').style.width); }, 0);
+            if ((CORE.Window.flags & FLAG_FULLSCREEN_MODE) || canvasStyleWidth > canvasWidth) ToggleBorderlessWindowed();
+        }
+        else ToggleBorderlessWindowed();
+    }
+
+    // State change: FLAG_FULLSCREEN_MODE
+    if ((flags & FLAG_FULLSCREEN_MODE) > 0)
+    {
+        // NOTE: Window state flag updated inside ToggleFullscreen() function
+        const bool wasFullscreen = EM_ASM_INT( { if (document.fullscreenElement) return 1; }, 0);
+        if (wasFullscreen)
+        {
+            const int canvasWidth = EM_ASM_INT( { return document.getElementById('canvas').width; }, 0);
+            const int screenWidth = EM_ASM_INT( { return screen.width; }, 0);
+            if ((CORE.Window.flags & FLAG_BORDERLESS_WINDOWED_MODE) || screenWidth == canvasWidth ) ToggleFullscreen();
+        }
+        else ToggleFullscreen();
+    }
+
+    // State change: FLAG_WINDOW_RESIZABLE
+    if (((CORE.Window.flags & FLAG_WINDOW_RESIZABLE) != (flags & FLAG_WINDOW_RESIZABLE)) && ((flags & FLAG_WINDOW_RESIZABLE) > 0))
+    {
+        glfwSetWindowAttrib(platform.handle, GLFW_RESIZABLE, GLFW_TRUE);
+        CORE.Window.flags |= FLAG_WINDOW_RESIZABLE;
+    }
+
+    // State change: FLAG_WINDOW_UNDECORATED
+    if ((flags & FLAG_WINDOW_UNDECORATED) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_WINDOW_UNDECORATED) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_HIDDEN
+    if ((flags & FLAG_WINDOW_HIDDEN) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_WINDOW_HIDDEN) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_MINIMIZED
+    if ((flags & FLAG_WINDOW_MINIMIZED) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_WINDOW_MINIMIZED) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_MAXIMIZED
+    if (((CORE.Window.flags & FLAG_WINDOW_MAXIMIZED) != (flags & FLAG_WINDOW_MAXIMIZED)) && ((flags & FLAG_WINDOW_MAXIMIZED) > 0))
+    {
+        if (glfwGetWindowAttrib(platform.handle, GLFW_RESIZABLE) == GLFW_TRUE)
+        {
+            platform.unmaximizedWidth = CORE.Window.screen.width;
+            platform.unmaximizedHeight = CORE.Window.screen.height;
+
+            const int tabWidth = EM_ASM_INT( return window.innerWidth; );
+            const int tabHeight = EM_ASM_INT( return window.innerHeight; );
+
+            if (tabWidth && tabHeight) glfwSetWindowSize(platform.handle, tabWidth, tabHeight);
+
+            CORE.Window.flags |= FLAG_WINDOW_MAXIMIZED;
+        }
+    }
+
+    // State change: FLAG_WINDOW_UNFOCUSED
+    if ((flags & FLAG_WINDOW_UNFOCUSED) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_WINDOW_UNFOCUSED) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_TOPMOST
+    if ((flags & FLAG_WINDOW_TOPMOST) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_WINDOW_TOPMOST) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_ALWAYS_RUN
+    if ((flags & FLAG_WINDOW_ALWAYS_RUN) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_WINDOW_ALWAYS_RUN) not available on target platform");
+    }
+
+    // The following states can not be changed after window creation
+    // NOTE: Review for PLATFORM_WEB
+
+    // State change: FLAG_WINDOW_TRANSPARENT
+    if ((flags & FLAG_WINDOW_TRANSPARENT) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_WINDOW_TRANSPARENT) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_HIGHDPI
+    if ((flags & FLAG_WINDOW_HIGHDPI) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_WINDOW_HIGHDPI) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_MOUSE_PASSTHROUGH
+    if ((flags & FLAG_WINDOW_MOUSE_PASSTHROUGH) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_WINDOW_MOUSE_PASSTHROUGH) not available on target platform");
+    }
+
+    // State change: FLAG_MSAA_4X_HINT
+    if ((flags & FLAG_MSAA_4X_HINT) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_MSAA_4X_HINT) not available on target platform");
+    }
+
+    // State change: FLAG_INTERLACED_HINT
+    if ((flags & FLAG_INTERLACED_HINT) > 0)
+    {
+        TRACELOG(LOG_WARNING, "SetWindowState(FLAG_INTERLACED_HINT) not available on target platform");
+    }
+}
+
+// Clear window configuration state flags
+void ClearWindowState(unsigned int flags)
+{
+    // Check previous state and requested state to apply required changes
+    // NOTE: In most cases the functions already change the flags internally
+
+    // State change: FLAG_VSYNC_HINT
+    if ((flags & FLAG_VSYNC_HINT) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_VSYNC_HINT) not available on target platform");
+    }
+
+    // State change: FLAG_BORDERLESS_WINDOWED_MODE
+    if ((flags & FLAG_BORDERLESS_WINDOWED_MODE) > 0)
+    {
+        const bool wasFullscreen = EM_ASM_INT( { if (document.fullscreenElement) return 1; }, 0);
+        if (wasFullscreen)
+        {
+            const int canvasWidth = EM_ASM_INT( { return document.getElementById('canvas').width; }, 0);
+            const int screenWidth = EM_ASM_INT( { return screen.width; }, 0);
+            if ((CORE.Window.flags & FLAG_BORDERLESS_WINDOWED_MODE) || (screenWidth == canvasWidth)) EM_ASM(document.exitFullscreen(););
+        }
+
+        CORE.Window.flags &= ~FLAG_BORDERLESS_WINDOWED_MODE;
+    }
+
+    // State change: FLAG_FULLSCREEN_MODE
+    if ((flags & FLAG_FULLSCREEN_MODE) > 0)
+    {
+        const bool wasFullscreen = EM_ASM_INT( { if (document.fullscreenElement) return 1; }, 0);
+        if (wasFullscreen)
+        {
+            const int canvasWidth = EM_ASM_INT( { return document.getElementById('canvas').width; }, 0);
+            const int canvasStyleWidth = EM_ASM_INT( { return parseInt(document.getElementById('canvas').style.width); }, 0);
+            if ((CORE.Window.flags & FLAG_FULLSCREEN_MODE) || (canvasStyleWidth > canvasWidth)) EM_ASM(document.exitFullscreen(););
+        }
+
+        CORE.Window.fullscreen = false;
+        CORE.Window.flags &= ~FLAG_FULLSCREEN_MODE;
+    }
+
+    // State change: FLAG_WINDOW_RESIZABLE
+    if (((CORE.Window.flags & FLAG_WINDOW_RESIZABLE) > 0) && ((flags & FLAG_WINDOW_RESIZABLE) > 0))
+    {
+        glfwSetWindowAttrib(platform.handle, GLFW_RESIZABLE, GLFW_FALSE);
+        CORE.Window.flags &= ~FLAG_WINDOW_RESIZABLE;
+    }
+
+    // State change: FLAG_WINDOW_HIDDEN
+    if ((flags & FLAG_WINDOW_HIDDEN) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_WINDOW_HIDDEN) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_MINIMIZED
+    if ((flags & FLAG_WINDOW_MINIMIZED) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_WINDOW_MINIMIZED) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_MAXIMIZED
+    if (((CORE.Window.flags & FLAG_WINDOW_MAXIMIZED) > 0) && ((flags & FLAG_WINDOW_MAXIMIZED) > 0))
+    {
+        if (glfwGetWindowAttrib(platform.handle, GLFW_RESIZABLE) == GLFW_TRUE)
+        {
+            if (platform.unmaximizedWidth && platform.unmaximizedHeight) glfwSetWindowSize(platform.handle, platform.unmaximizedWidth, platform.unmaximizedHeight);
+
+            CORE.Window.flags &= ~FLAG_WINDOW_MAXIMIZED;
+        }
+    }
+
+    // State change: FLAG_WINDOW_UNDECORATED
+    if ((flags & FLAG_WINDOW_UNDECORATED) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_WINDOW_UNDECORATED) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_UNFOCUSED
+    if ((flags & FLAG_WINDOW_UNFOCUSED) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_WINDOW_UNFOCUSED) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_TOPMOST
+    if ((flags & FLAG_WINDOW_TOPMOST) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_WINDOW_TOPMOST) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_ALWAYS_RUN
+    if ((flags & FLAG_WINDOW_ALWAYS_RUN) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_WINDOW_ALWAYS_RUN) not available on target platform");
+    }
+
+    // The following states can not be changed after window creation
+    // NOTE: Review for PLATFORM_WEB
+
+    // State change: FLAG_WINDOW_TRANSPARENT
+    if ((flags & FLAG_WINDOW_TRANSPARENT) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_WINDOW_TRANSPARENT) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_HIGHDPI
+    if ((flags & FLAG_WINDOW_HIGHDPI) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_WINDOW_HIGHDPI) not available on target platform");
+    }
+
+    // State change: FLAG_WINDOW_MOUSE_PASSTHROUGH
+    if ((flags & FLAG_WINDOW_MOUSE_PASSTHROUGH) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_WINDOW_MOUSE_PASSTHROUGH) not available on target platform");
+    }
+
+    // State change: FLAG_MSAA_4X_HINT
+    if ((flags & FLAG_MSAA_4X_HINT) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_MSAA_4X_HINT) not available on target platform");
+    }
+
+    // State change: FLAG_INTERLACED_HINT
+    if ((flags & FLAG_INTERLACED_HINT) > 0)
+    {
+        TRACELOG(LOG_WARNING, "ClearWindowState(FLAG_INTERLACED_HINT) not available on target platform");
+    }
+}
+
+// Set icon for window
+void SetWindowIcon(Image image)
+{
+    TRACELOG(LOG_WARNING, "SetWindowIcon() not available on target platform");
+}
+
+// Set icon for window, multiple images
+void SetWindowIcons(Image *images, int count)
+{
+    TRACELOG(LOG_WARNING, "SetWindowIcons() not available on target platform");
+}
+
+// Set title for window
+void SetWindowTitle(const char *title)
+{
+    CORE.Window.title = title;
+    emscripten_set_window_title(title);
+}
+
+// Set window position on screen (windowed mode)
+void SetWindowPosition(int x, int y)
+{
+    TRACELOG(LOG_WARNING, "SetWindowPosition() not available on target platform");
+}
+
+// Set monitor for the current window
+void SetWindowMonitor(int monitor)
+{
+    TRACELOG(LOG_WARNING, "SetWindowMonitor() not available on target platform");
+}
+
+// Set window minimum dimensions (FLAG_WINDOW_RESIZABLE)
+void SetWindowMinSize(int width, int height)
+{
+    CORE.Window.screenMin.width = width;
+    CORE.Window.screenMin.height = height;
+
+    // Trigger the resize event once to update the window minimum width and height
+    if ((CORE.Window.flags & FLAG_WINDOW_RESIZABLE) != 0) EmscriptenResizeCallback(EMSCRIPTEN_EVENT_RESIZE, NULL, NULL);
+}
+
+// Set window maximum dimensions (FLAG_WINDOW_RESIZABLE)
+void SetWindowMaxSize(int width, int height)
+{
+    CORE.Window.screenMax.width = width;
+    CORE.Window.screenMax.height = height;
+
+    // Trigger the resize event once to update the window maximum width and height
+    if ((CORE.Window.flags & FLAG_WINDOW_RESIZABLE) != 0) EmscriptenResizeCallback(EMSCRIPTEN_EVENT_RESIZE, NULL, NULL);
+}
+
+// Set window dimensions
+void SetWindowSize(int width, int height)
+{
+    glfwSetWindowSize(platform.handle, width, height);
+}
+
+// Set window opacity, value opacity is between 0.0 and 1.0
+void SetWindowOpacity(float opacity)
+{
+    if (opacity >= 1.0f) opacity = 1.0f;
+    else if (opacity <= 0.0f) opacity = 0.0f;
+    EM_ASM({ document.getElementById('canvas').style.opacity = $0; }, opacity);
+}
+
+// Set window focused
+void SetWindowFocused(void)
+{
+    TRACELOG(LOG_WARNING, "SetWindowFocused() not available on target platform");
+}
+
+// Get native window handle
+void *GetWindowHandle(void)
+{
+    TRACELOG(LOG_WARNING, "GetWindowHandle() not implemented on target platform");
+    return NULL;
+}
+
+// Get number of monitors
+int GetMonitorCount(void)
+{
+    TRACELOG(LOG_WARNING, "GetMonitorCount() not implemented on target platform");
+    return 1;
+}
+
+// Get number of monitors
+int GetCurrentMonitor(void)
+{
+    TRACELOG(LOG_WARNING, "GetCurrentMonitor() not implemented on target platform");
+    return 0;
+}
+
+// Get selected monitor position
+Vector2 GetMonitorPosition(int monitor)
+{
+    TRACELOG(LOG_WARNING, "GetMonitorPosition() not implemented on target platform");
+    return (Vector2){ 0, 0 };
+}
+
+// Get selected monitor width (currently used by monitor)
+int GetMonitorWidth(int monitor)
+{
+    // NOTE: Returned value is limited to the current monitor where the browser window is located
+    int width = 0;
+    width = EM_ASM_INT( { return screen.width; }, 0);
+    return width;
+}
+
+// Get selected monitor height (currently used by monitor)
+int GetMonitorHeight(int monitor)
+{
+    // NOTE: Returned value is limited to the current monitor where the browser window is located
+    int height = 0;
+    height = EM_ASM_INT( { return screen.height; }, 0);
+    return height;
+}
+
+// Get selected monitor physical width in millimetres
+int GetMonitorPhysicalWidth(int monitor)
+{
+    TRACELOG(LOG_WARNING, "GetMonitorPhysicalWidth() not implemented on target platform");
+    return 0;
+}
+
+// Get selected monitor physical height in millimetres
+int GetMonitorPhysicalHeight(int monitor)
+{
+    TRACELOG(LOG_WARNING, "GetMonitorPhysicalHeight() not implemented on target platform");
+    return 0;
+}
+
+// Get selected monitor refresh rate
+int GetMonitorRefreshRate(int monitor)
+{
+    TRACELOG(LOG_WARNING, "GetMonitorRefreshRate() not implemented on target platform");
+    return 0;
+}
+
+// Get the human-readable, UTF-8 encoded name of the selected monitor
+const char *GetMonitorName(int monitor)
+{
+    TRACELOG(LOG_WARNING, "GetMonitorName() not implemented on target platform");
+    return "";
+}
+
+// Get window position XY on monitor
+Vector2 GetWindowPosition(void)
+{
+    // NOTE: Returned position is relative to the current monitor where the browser window is located
+    Vector2 position = { 0, 0 };
+    position.x = (float)EM_ASM_INT( { return window.screenX; }, 0);
+    position.y = (float)EM_ASM_INT( { return window.screenY; }, 0);
+    return position;
+}
+
+// Get window scale DPI factor for current monitor
+Vector2 GetWindowScaleDPI(void)
+{
+    TRACELOG(LOG_WARNING, "GetWindowScaleDPI() not implemented on target platform");
+    return (Vector2){ 1.0f, 1.0f };
+}
+
+// Set clipboard text content
+void SetClipboardText(const char *text)
+{
+    // Security check to (partially) avoid malicious code
+    if (strchr(text, '\'') != NULL) TRACELOG(LOG_WARNING, "SYSTEM: Provided Clipboard could be potentially malicious, avoid [\'] character");
+    else EM_ASM({ navigator.clipboard.writeText(UTF8ToString($0)); }, text);
+}
+
+// Get clipboard text content
+// NOTE: returned string is allocated and freed by GLFW
+const char *GetClipboardText(void)
+{
+/*
+    // Accessing clipboard data from browser is tricky due to security reasons
+    // The method to use is navigator.clipboard.readText() but this is an asynchronous method
+    // that will return at some moment after the function is called with the required data
+    emscripten_run_script_string("navigator.clipboard.readText() \
+        .then(text => { document.getElementById('clipboard').innerText = text; console.log('Pasted content: ', text); }) \
+        .catch(err => { console.error('Failed to read clipboard contents: ', err); });"
+    );
+
+    // The main issue is getting that data, one approach could be using ASYNCIFY and wait
+    // for the data but it requires adding Asyncify emscripten library on compilation
+
+    // Another approach could be just copy the data in a HTML text field and try to retrieve it
+    // later on if available... and clean it for future accesses
+*/
+    return NULL;
+}
+
+// Show mouse cursor
+void ShowCursor(void)
+{
+    if (CORE.Input.Mouse.cursorHidden)
+    {
+        EM_ASM( { document.getElementById("canvas").style.cursor = UTF8ToString($0); }, cursorLUT[CORE.Input.Mouse.cursor]);
+
+        CORE.Input.Mouse.cursorHidden = false;
+    }
+}
+
+// Hides mouse cursor
+void HideCursor(void)
+{
+    if (!CORE.Input.Mouse.cursorHidden)
+    {
+        EM_ASM(document.getElementById('canvas').style.cursor = 'none';);
+
+        CORE.Input.Mouse.cursorHidden = true;
+    }
+}
+
+// Enables cursor (unlock cursor)
+void EnableCursor(void)
+{
+    emscripten_exit_pointerlock();
+
+    // Set cursor position in the middle
+    SetMousePosition(CORE.Window.screen.width/2, CORE.Window.screen.height/2);
+
+    // NOTE: CORE.Input.Mouse.cursorHidden handled by EmscriptenPointerlockCallback()
+}
+
+// Disables cursor (lock cursor)
+void DisableCursor(void)
+{
+    // TODO: figure out how not to hard code the canvas ID here.
+    emscripten_request_pointerlock("#canvas", 1);
+
+    // Set cursor position in the middle
+    SetMousePosition(CORE.Window.screen.width/2, CORE.Window.screen.height/2);
+
+    // NOTE: CORE.Input.Mouse.cursorHidden handled by EmscriptenPointerlockCallback()
+}
+
+// Swap back buffer with front buffer (screen drawing)
+void SwapScreenBuffer(void)
+{
+    glfwSwapBuffers(platform.handle);
+}
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition: Misc
+//----------------------------------------------------------------------------------
+
+// Get elapsed time measure in seconds since InitTimer()
+double GetTime(void)
+{
+    double time = glfwGetTime();   // Elapsed time since glfwInit()
+    return time;
+}
+
+// Open URL with default system browser (if available)
+// NOTE: This function is only safe to use if you control the URL given.
+// A user could craft a malicious string performing another action.
+// Only call this function yourself not with user input or make sure to check the string yourself.
+// Ref: https://github.com/raysan5/raylib/issues/686
+void OpenURL(const char *url)
+{
+    // Security check to (partially) avoid malicious code on target platform
+    if (strchr(url, '\'') != NULL) TRACELOG(LOG_WARNING, "SYSTEM: Provided URL could be potentially malicious, avoid [\'] character");
+    else emscripten_run_script(TextFormat("window.open('%s', '_blank')", url));
+}
+
+//----------------------------------------------------------------------------------
+// Module Functions Definition: Inputs
+//----------------------------------------------------------------------------------
+
+// Set internal gamepad mappings
+int SetGamepadMappings(const char *mappings)
+{
+    TRACELOG(LOG_INFO, "SetGamepadMappings not implemented in rcore_web.c");
+
+    return 0;
+}
+
+// Set gamepad vibration
+void SetGamepadVibration(int gamepad, float leftMotor, float rightMotor, float duration)
+{
+    if ((gamepad < MAX_GAMEPADS) && CORE.Input.Gamepad.ready[gamepad] && (duration > 0.0f))
+    {
+        if (leftMotor < 0.0f) leftMotor = 0.0f;
+        if (leftMotor > 1.0f) leftMotor = 1.0f;
+        if (rightMotor < 0.0f) rightMotor = 0.0f;
+        if (rightMotor > 1.0f) rightMotor = 1.0f;
+        if (duration > MAX_GAMEPAD_VIBRATION_TIME) duration = MAX_GAMEPAD_VIBRATION_TIME;
+        duration *= 1000.0f; // Convert duration to ms
+
+        // Note: At the moment (2024.10.21) Chrome, Edge, Opera, Safari, Android Chrome, Android Webview only support the vibrationActuator API,
+        //       and Firefox only supports the hapticActuators API
+        EM_ASM({
+            try
+            {
+                navigator.getGamepads()[$0].vibrationActuator.playEffect('dual-rumble', { startDelay: 0, duration: $3, weakMagnitude: $1, strongMagnitude: $2 });
+            }
+            catch (e)
+            {
+                try
+                {
+                    navigator.getGamepads()[$0].hapticActuators[0].pulse($2, $3);
+                }
+                catch (e) { }
+            }
+        }, gamepad, leftMotor, rightMotor, duration);
+    }
+}
+
+// Set mouse position XY
+void SetMousePosition(int x, int y)
+{
+    CORE.Input.Mouse.currentPosition = (Vector2){ (float)x, (float)y };
+    CORE.Input.Mouse.previousPosition = CORE.Input.Mouse.currentPosition;
+
+    if (CORE.Input.Mouse.cursorHidden) lockedMousePos = CORE.Input.Mouse.currentPosition;
+
+    // NOTE: emscripten not implemented
+    glfwSetCursorPos(platform.handle, CORE.Input.Mouse.currentPosition.x, CORE.Input.Mouse.currentPosition.y);
+}
+
+// Set mouse cursor
+void SetMouseCursor(int cursor)
+{
+    if (CORE.Input.Mouse.cursor != cursor)
+    {
+        if (!CORE.Input.Mouse.cursorHidden) EM_ASM( { document.getElementById('canvas').style.cursor = UTF8ToString($0); }, cursorLUT[cursor]);
+
+        CORE.Input.Mouse.cursor = cursor;
+    }
+}
+
+// Get physical key name.
+const char *GetKeyName(int key)
+{
+    TRACELOG(LOG_WARNING, "GetKeyName() not implemented on target platform");
+    return "";
+}
+
+// Register all input events
+void PollInputEvents(void)
+{
+#if defined(SUPPORT_GESTURES_SYSTEM)
+    // NOTE: Gestures update must be called every frame to reset gestures correctly
+    // because ProcessGestureEvent() is just called on an event, not every frame
+    UpdateGestures();
+#endif
+
+    // Reset keys/chars pressed registered
+    CORE.Input.Keyboard.keyPressedQueueCount = 0;
+    CORE.Input.Keyboard.charPressedQueueCount = 0;
+
+    // Reset last gamepad button/axis registered state
+    CORE.Input.Gamepad.lastButtonPressed = 0;       // GAMEPAD_BUTTON_UNKNOWN
+    //CORE.Input.Gamepad.axisCount = 0;
+
+    // Keyboard/Mouse input polling (automatically managed by GLFW3 through callback)
+
+    // Register previous keys states
+    for (int i = 0; i < MAX_KEYBOARD_KEYS; i++)
+    {
+        CORE.Input.Keyboard.previousKeyState[i] = CORE.Input.Keyboard.currentKeyState[i];
+        CORE.Input.Keyboard.keyRepeatInFrame[i] = 0;
+    }
+
+    // Register previous mouse states
+    for (int i = 0; i < MAX_MOUSE_BUTTONS; i++) CORE.Input.Mouse.previousButtonState[i] = CORE.Input.Mouse.currentButtonState[i];
+
+    // Register previous mouse wheel state
+    CORE.Input.Mouse.previousWheelMove = CORE.Input.Mouse.currentWheelMove;
+    CORE.Input.Mouse.currentWheelMove = (Vector2){ 0.0f, 0.0f };
+
+    // Register previous mouse position
+    CORE.Input.Mouse.previousPosition = CORE.Input.Mouse.currentPosition;
+
+    // Register previous touch states
+    for (int i = 0; i < MAX_TOUCH_POINTS; i++) CORE.Input.Touch.previousTouchState[i] = CORE.Input.Touch.currentTouchState[i];
+
+    // Reset touch positions
+    // TODO: It resets on target platform the mouse position and not filled again until a move-event,
+    // so, if mouse is not moved it returns a (0, 0) position... this behaviour should be reviewed!
+    //for (int i = 0; i < MAX_TOUCH_POINTS; i++) CORE.Input.Touch.position[i] = (Vector2){ 0, 0 };
+
+    // Gamepad support using emscripten API
+    // NOTE: GLFW3 joystick functionality not available in web
+
+    // Get number of gamepads connected
+    int numGamepads = 0;
+    if (emscripten_sample_gamepad_data() == EMSCRIPTEN_RESULT_SUCCESS) numGamepads = emscripten_get_num_gamepads();
+
+    for (int i = 0; (i < numGamepads) && (i < MAX_GAMEPADS); i++)
+    {
+        // Register previous gamepad button states
+        for (int k = 0; k < MAX_GAMEPAD_BUTTONS; k++) CORE.Input.Gamepad.previousButtonState[i][k] = CORE.Input.Gamepad.currentButtonState[i][k];
+
+        EmscriptenGamepadEvent gamepadState;
+
+        int result = emscripten_get_gamepad_status(i, &gamepadState);
+
+        if (result == EMSCRIPTEN_RESULT_SUCCESS)
+        {
+            // Register buttons data for every connected gamepad
+            for (int j = 0; (j < gamepadState.numButtons) && (j < MAX_GAMEPAD_BUTTONS); j++)
+            {
+                GamepadButton button = -1;
+
+                // Gamepad Buttons reference: https://www.w3.org/TR/gamepad/#gamepad-interface
+                switch (j)
+                {
+                    case 0: button = GAMEPAD_BUTTON_RIGHT_FACE_DOWN; break;
+                    case 1: button = GAMEPAD_BUTTON_RIGHT_FACE_RIGHT; break;
+                    case 2: button = GAMEPAD_BUTTON_RIGHT_FACE_LEFT; break;
+                    case 3: button = GAMEPAD_BUTTON_RIGHT_FACE_UP; break;
+                    case 4: button = GAMEPAD_BUTTON_LEFT_TRIGGER_1; break;
+                    case 5: button = GAMEPAD_BUTTON_RIGHT_TRIGGER_1; break;
+                    case 6: button = GAMEPAD_BUTTON_LEFT_TRIGGER_2; break;
+                    case 7: button = GAMEPAD_BUTTON_RIGHT_TRIGGER_2; break;
+                    case 8: button = GAMEPAD_BUTTON_MIDDLE_LEFT; break;
+                    case 9: button = GAMEPAD_BUTTON_MIDDLE_RIGHT; break;
+                    case 10: button = GAMEPAD_BUTTON_LEFT_THUMB; break;
+                    case 11: button = GAMEPAD_BUTTON_RIGHT_THUMB; break;
+                    case 12: button = GAMEPAD_BUTTON_LEFT_FACE_UP; break;
+                    case 13: button = GAMEPAD_BUTTON_LEFT_FACE_DOWN; break;
+                    case 14: button = GAMEPAD_BUTTON_LEFT_FACE_LEFT; break;
+                    case 15: button = GAMEPAD_BUTTON_LEFT_FACE_RIGHT; break;
+                    default: break;
+                }
+
+                if (button + 1 != 0)   // Check for valid button
+                {
+                    if (gamepadState.digitalButton[j] == 1)
+                    {
+                        CORE.Input.Gamepad.currentButtonState[i][button] = 1;
+                        CORE.Input.Gamepad.lastButtonPressed = button;
+                    }
+                    else CORE.Input.Gamepad.currentButtonState[i][button] = 0;
+                }
+
+                //TRACELOGD("INPUT: Gamepad %d, button %d: Digital: %d, Analog: %g", gamepadState.index, j, gamepadState.digitalButton[j], gamepadState.analogButton[j]);
+            }
+
+            // Register axis data for every connected gamepad
+            for (int j = 0; (j < gamepadState.numAxes) && (j < MAX_GAMEPAD_AXIS); j++)
+            {
+                CORE.Input.Gamepad.axisState[i][j] = gamepadState.axis[j];
+            }
+
+            CORE.Input.Gamepad.axisCount[i] = gamepadState.numAxes;
+        }
+    }
+
+    CORE.Window.resizedLastFrame = false;
+
+    // TODO: This code does not seem to do anything??
+    //if (CORE.Window.eventWaiting) glfwWaitEvents();     // Wait for in input events before continue (drawing is paused)
+    //else glfwPollEvents(); // Poll input events: keyboard/mouse/window events (callbacks) --> WARNING: Where is key input reset?
+}
+
+//----------------------------------------------------------------------------------
+// Module Internal Functions Definition
+//----------------------------------------------------------------------------------
+
+// Initialize platform: graphics, inputs and more
+int InitPlatform(void)
+{
+    glfwSetErrorCallback(ErrorCallback);
+
+    // Initialize GLFW internal global state
+    int result = glfwInit();
+    if (result == GLFW_FALSE) { TRACELOG(LOG_WARNING, "GLFW: Failed to initialize GLFW"); return -1; }
+
+    // Initialize graphic device: display/window and graphic context
+    //----------------------------------------------------------------------------
+    glfwDefaultWindowHints(); // Set default windows hints
+    // glfwWindowHint(GLFW_RED_BITS, 8);             // Framebuffer red color component bits
+    // glfwWindowHint(GLFW_GREEN_BITS, 8);           // Framebuffer green color component bits
+    // glfwWindowHint(GLFW_BLUE_BITS, 8);            // Framebuffer blue color component bits
+    // glfwWindowHint(GLFW_ALPHA_BITS, 8);           // Framebuffer alpha color component bits
+    // glfwWindowHint(GLFW_DEPTH_BITS, 24);          // Depthbuffer bits
+    // glfwWindowHint(GLFW_REFRESH_RATE, 0);         // Refresh rate for fullscreen window
+    // glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_API); // OpenGL API to use. Alternative: GLFW_OPENGL_ES_API
+    // glfwWindowHint(GLFW_AUX_BUFFERS, 0);          // Number of auxiliar buffers
+
+    // Check window creation flags
+    if ((CORE.Window.flags & FLAG_FULLSCREEN_MODE) > 0) CORE.Window.fullscreen = true;
+
+    if ((CORE.Window.flags & FLAG_WINDOW_HIDDEN) > 0) glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE); // Visible window
+    else glfwWindowHint(GLFW_VISIBLE, GLFW_TRUE); // Window initially hidden
+
+    if ((CORE.Window.flags & FLAG_WINDOW_UNDECORATED) > 0) glfwWindowHint(GLFW_DECORATED, GLFW_FALSE); // Border and buttons on Window
+    else glfwWindowHint(GLFW_DECORATED, GLFW_TRUE); // Decorated window
+
+    if ((CORE.Window.flags & FLAG_WINDOW_RESIZABLE) > 0) glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE); // Resizable window
+    else glfwWindowHint(GLFW_RESIZABLE, GLFW_FALSE); // Avoid window being resizable
+
+    // Disable FLAG_WINDOW_MINIMIZED, not supported on initialization
+    if ((CORE.Window.flags & FLAG_WINDOW_MINIMIZED) > 0) CORE.Window.flags &= ~FLAG_WINDOW_MINIMIZED;
+
+    // Disable FLAG_WINDOW_MAXIMIZED, not supported on initialization
+    if ((CORE.Window.flags & FLAG_WINDOW_MAXIMIZED) > 0) CORE.Window.flags &= ~FLAG_WINDOW_MAXIMIZED;
+
+    if ((CORE.Window.flags & FLAG_WINDOW_UNFOCUSED) > 0) glfwWindowHint(GLFW_FOCUSED, GLFW_FALSE);
+    else glfwWindowHint(GLFW_FOCUSED, GLFW_TRUE);
+
+    if ((CORE.Window.flags & FLAG_WINDOW_TOPMOST) > 0) glfwWindowHint(GLFW_FLOATING, GLFW_TRUE);
+    else glfwWindowHint(GLFW_FLOATING, GLFW_FALSE);
+
+    // NOTE: Some GLFW flags are not supported on HTML5
+    // e.g.: GLFW_TRANSPARENT_FRAMEBUFFER, GLFW_COCOA_RETINA_FRAMEBUFFER, GLFW_MOUSE_PASSTHROUGH
+
+    // Scale content area based on the monitor content scale where window is placed on
+    // NOTE: This feature requires emscripten 3.1.51
+    //if ((CORE.Window.flags & FLAG_WINDOW_HIGHDPI) > 0) glfwWindowHint(GLFW_SCALE_TO_MONITOR, GLFW_TRUE);
+    //else glfwWindowHint(GLFW_SCALE_TO_MONITOR, GLFW_FALSE);
+
+    if (CORE.Window.flags & FLAG_MSAA_4X_HINT)
+    {
+        // NOTE: MSAA is only enabled for main framebuffer, not user-created FBOs
+        TRACELOG(LOG_INFO, "DISPLAY: Trying to enable MSAA x4");
+        glfwWindowHint(GLFW_SAMPLES, 4); // Tries to enable multisampling x4 (MSAA), default is 0
+    }
+
+    // NOTE: When asking for an OpenGL context version, most drivers provide the highest supported version
+    // with backward compatibility to older OpenGL versions.
+    // For example, if using OpenGL 1.1, driver can provide a 4.3 backwards compatible context.
+
+    // Check selection OpenGL version
+    if (rlGetVersion() == RL_OPENGL_21)
+    {
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2); // Choose OpenGL major version (just hint)
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1); // Choose OpenGL minor version (just hint)
+    }
+    else if (rlGetVersion() == RL_OPENGL_33)
+    {
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);                 // Choose OpenGL major version (just hint)
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);                 // Choose OpenGL minor version (just hint)
+        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE); // Profiles Hint: Only 3.3 and above!
+                                                                       // Values: GLFW_OPENGL_CORE_PROFILE, GLFW_OPENGL_ANY_PROFILE, GLFW_OPENGL_COMPAT_PROFILE
+        glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_FALSE); // Forward Compatibility Hint: Only 3.3 and above!
+        // glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE); // Request OpenGL DEBUG context
+    }
+    else if (rlGetVersion() == RL_OPENGL_43)
+    {
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4); // Choose OpenGL major version (just hint)
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3); // Choose OpenGL minor version (just hint)
+        glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+        glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_FALSE);
+#if defined(RLGL_ENABLE_OPENGL_DEBUG_CONTEXT)
+        glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE); // Enable OpenGL Debug Context
+#endif
+    }
+    else if (rlGetVersion() == RL_OPENGL_ES_20) // Request OpenGL ES 2.0 context
+    {
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
+        glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_NATIVE_CONTEXT_API);
+    }
+    else if (rlGetVersion() == RL_OPENGL_ES_30) // Request OpenGL ES 3.0 context
+    {
+        // TODO: It seems WebGL 2.0 context is not set despite being requested
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+        glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
+        glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
+        glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_NATIVE_CONTEXT_API);
+    }
+
+    // NOTE: Getting video modes is not implemented in emscripten GLFW3 version
+    CORE.Window.display.width = CORE.Window.screen.width;
+    CORE.Window.display.height = CORE.Window.screen.height;
+
+    // Init fullscreen toggle required var:
+    platform.ourFullscreen = false;
+
+    if (CORE.Window.fullscreen)
+    {
+        // remember center for switchinging from fullscreen to window
+        if ((CORE.Window.screen.height == CORE.Window.display.height) && (CORE.Window.screen.width == CORE.Window.display.width))
+        {
+            // If screen width/height equal to the display, we can't calculate the window pos for toggling full-screened/windowed.
+            // Toggling full-screened/windowed with pos(0, 0) can cause problems in some platforms, such as X11.
+            CORE.Window.position.x = CORE.Window.display.width/4;
+            CORE.Window.position.y = CORE.Window.display.height/4;
+        }
+        else
+        {
+            CORE.Window.position.x = CORE.Window.display.width/2 - CORE.Window.screen.width/2;
+            CORE.Window.position.y = CORE.Window.display.height/2 - CORE.Window.screen.height/2;
+        }
+
+        if (CORE.Window.position.x < 0) CORE.Window.position.x = 0;
+        if (CORE.Window.position.y < 0) CORE.Window.position.y = 0;
+
+        // Obtain recommended CORE.Window.display.width/CORE.Window.display.height from a valid videomode for the monitor
+        int count = 0;
+        const GLFWvidmode *modes = glfwGetVideoModes(glfwGetPrimaryMonitor(), &count);
+
+        // Get closest video mode to desired CORE.Window.screen.width/CORE.Window.screen.height
+        for (int i = 0; i < count; i++)
+        {
+            if ((unsigned int)modes[i].width >= CORE.Window.screen.width)
+            {
+                if ((unsigned int)modes[i].height >= CORE.Window.screen.height)
+                {
+                    CORE.Window.display.width = modes[i].width;
+                    CORE.Window.display.height = modes[i].height;
+                    break;
+                }
+            }
+        }
+
+        TRACELOG(LOG_WARNING, "SYSTEM: Closest fullscreen videomode: %i x %i", CORE.Window.display.width, CORE.Window.display.height);
+
+        // NOTE: ISSUE: Closest videomode could not match monitor aspect-ratio, for example,
+        // for a desired screen size of 800x450 (16:9), closest supported videomode is 800x600 (4:3),
+        // framebuffer is rendered correctly but once displayed on a 16:9 monitor, it gets stretched
+        // by the sides to fit all monitor space...
+
+        // Try to setup the most appropriate fullscreen framebuffer for the requested screenWidth/screenHeight
+        // It considers device display resolution mode and setups a framebuffer with black bars if required (render size/offset)
+        // Modified global variables: CORE.Window.screen.width/CORE.Window.screen.height - CORE.Window.render.width/CORE.Window.render.height - CORE.Window.renderOffset.x/CORE.Window.renderOffset.y - CORE.Window.screenScale
+        // TODO: It is a quite cumbersome solution to display size vs requested size, it should be reviewed or removed...
+        // HighDPI monitors are properly considered in a following similar function: SetupViewport()
+        SetupFramebuffer(CORE.Window.display.width, CORE.Window.display.height);
+
+        platform.handle = glfwCreateWindow(CORE.Window.display.width, CORE.Window.display.height, (CORE.Window.title != 0)? CORE.Window.title : " ", glfwGetPrimaryMonitor(), NULL);
+
+        // NOTE: Full-screen change, not working properly...
+        // glfwSetWindowMonitor(platform.handle, glfwGetPrimaryMonitor(), 0, 0, CORE.Window.screen.width, CORE.Window.screen.height, GLFW_DONT_CARE);
+    }
+    else
+    {
+        // No-fullscreen window creation
+        platform.handle = glfwCreateWindow(CORE.Window.screen.width, CORE.Window.screen.height, (CORE.Window.title != 0)? CORE.Window.title : " ", NULL, NULL);
+
+        if (platform.handle)
+        {
+            CORE.Window.render.width = CORE.Window.screen.width;
+            CORE.Window.render.height = CORE.Window.screen.height;
+        }
+    }
+
+    if (!platform.handle)
+    {
+        glfwTerminate();
+        TRACELOG(LOG_WARNING, "GLFW: Failed to initialize Window");
+        return -1;
+    }
+
+    // WARNING: glfwCreateWindow() title doesn't work with emscripten
+    emscripten_set_window_title((CORE.Window.title != 0)? CORE.Window.title : " ");
+
+    // Set window callback events
+    glfwSetWindowSizeCallback(platform.handle, WindowSizeCallback); // NOTE: Resizing not allowed by default!
+    glfwSetWindowIconifyCallback(platform.handle, WindowIconifyCallback);
+    glfwSetWindowFocusCallback(platform.handle, WindowFocusCallback);
+    glfwSetDropCallback(platform.handle, WindowDropCallback);
+
+    if ((CORE.Window.flags & FLAG_WINDOW_HIGHDPI) > 0)
+    {
+       glfwSetWindowContentScaleCallback(platform.handle, WindowContentScaleCallback);
+    }
+
+    // Set input callback events
+    glfwSetKeyCallback(platform.handle, KeyCallback);
+    glfwSetCharCallback(platform.handle, CharCallback);
+    glfwSetMouseButtonCallback(platform.handle, MouseButtonCallback);
+    glfwSetCursorPosCallback(platform.handle, MouseCursorPosCallback); // Track mouse position changes
+    glfwSetScrollCallback(platform.handle, MouseScrollCallback);
+    glfwSetCursorEnterCallback(platform.handle, CursorEnterCallback);
+
+    glfwMakeContextCurrent(platform.handle);
+    result = true; // TODO: WARNING: glfwGetError(NULL); symbol can not be found in Web
+
+    // Check context activation
+    if (result == true) //(result != GLFW_NO_WINDOW_CONTEXT) && (result != GLFW_PLATFORM_ERROR))
+    {
+        CORE.Window.ready = true;
+
+        int fbWidth = CORE.Window.screen.width;
+        int fbHeight = CORE.Window.screen.height;
+
+        CORE.Window.render.width = fbWidth;
+        CORE.Window.render.height = fbHeight;
+        CORE.Window.currentFbo.width = fbWidth;
+        CORE.Window.currentFbo.height = fbHeight;
+
+        TRACELOG(LOG_INFO, "DISPLAY: Device initialized successfully");
+        TRACELOG(LOG_INFO, "    > Display size: %i x %i", CORE.Window.display.width, CORE.Window.display.height);
+        TRACELOG(LOG_INFO, "    > Screen size:  %i x %i", CORE.Window.screen.width, CORE.Window.screen.height);
+        TRACELOG(LOG_INFO, "    > Render size:  %i x %i", CORE.Window.render.width, CORE.Window.render.height);
+        TRACELOG(LOG_INFO, "    > Viewport offsets: %i, %i", CORE.Window.renderOffset.x, CORE.Window.renderOffset.y);
+    }
+    else
+    {
+        TRACELOG(LOG_FATAL, "PLATFORM: Failed to initialize graphics device");
+        return -1;
+    }
+
+    if ((CORE.Window.flags & FLAG_WINDOW_MINIMIZED) > 0) MinimizeWindow();
+
+    // If graphic device is no properly initialized, we end program
+    if (!CORE.Window.ready) { TRACELOG(LOG_FATAL, "PLATFORM: Failed to initialize graphic device"); return -1; }
+
+    // Load OpenGL extensions
+    // NOTE: GL procedures address loader is required to load extensions
+    rlLoadExtensions(glfwGetProcAddress);
+    //----------------------------------------------------------------------------
+
+    // Initialize input events callbacks
+    //----------------------------------------------------------------------------
+    // Setup callback functions for the DOM events
+    emscripten_set_fullscreenchange_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, 1, EmscriptenFullscreenChangeCallback);
+
+    // WARNING: Below resize code was breaking fullscreen mode for sample games and examples, it needs review
+    // Check fullscreen change events(note this is done on the window since most browsers don't support this on #canvas)
+    // emscripten_set_fullscreenchange_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, 1, EmscriptenResizeCallback);
+    // Check Resize event (note this is done on the window since most browsers don't support this on #canvas)
+    emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, 1, EmscriptenResizeCallback);
+
+    // Trigger this once to get initial window sizing
+    EmscriptenResizeCallback(EMSCRIPTEN_EVENT_RESIZE, NULL, NULL);
+
+    // Support keyboard events -> Not used, GLFW.JS takes care of that
+    // emscripten_set_keypress_callback("#canvas", NULL, 1, EmscriptenKeyboardCallback);
+    // emscripten_set_keydown_callback("#canvas", NULL, 1, EmscriptenKeyboardCallback);
+
+    // Support mouse events
+    emscripten_set_click_callback("#canvas", NULL, 1, EmscriptenMouseCallback);
+    emscripten_set_pointerlockchange_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, 1, EmscriptenPointerlockCallback);
+
+    // Following the mouse delta when the mouse is locked
+    emscripten_set_mousemove_callback("#canvas", NULL, 1, EmscriptenMouseMoveCallback);
+
+    // Support touch events
+    emscripten_set_touchstart_callback("#canvas", NULL, 1, EmscriptenTouchCallback);
+    emscripten_set_touchend_callback("#canvas", NULL, 1, EmscriptenTouchCallback);
+    emscripten_set_touchmove_callback("#canvas", NULL, 1, EmscriptenTouchCallback);
+    emscripten_set_touchcancel_callback("#canvas", NULL, 1, EmscriptenTouchCallback);
+
+    // Support gamepad events (not provided by GLFW3 on emscripten)
+    emscripten_set_gamepadconnected_callback(NULL, 1, EmscriptenGamepadCallback);
+    emscripten_set_gamepaddisconnected_callback(NULL, 1, EmscriptenGamepadCallback);
+    //----------------------------------------------------------------------------
+
+    // Initialize timing system
+    //----------------------------------------------------------------------------
+    InitTimer();
+    //----------------------------------------------------------------------------
+
+    // Initialize storage system
+    //----------------------------------------------------------------------------
+    CORE.Storage.basePath = GetWorkingDirectory();
+    //----------------------------------------------------------------------------
+
+    TRACELOG(LOG_INFO, "PLATFORM: WEB: Initialized successfully");
+
+    return 0;
+}
+
+// Close platform
+void ClosePlatform(void)
+{
+    glfwDestroyWindow(platform.handle);
+    glfwTerminate();
+}
+
+// GLFW3 Error Callback, runs on GLFW3 error
+static void ErrorCallback(int error, const char *description)
+{
+    TRACELOG(LOG_WARNING, "GLFW: Error: %i Description: %s", error, description);
+}
+
+// GLFW3 WindowSize Callback, runs when window is resizedLastFrame
+// NOTE: Window resizing not allowed by default
+static void WindowSizeCallback(GLFWwindow *window, int width, int height)
+{
+    // Reset viewport and projection matrix for new size
+    SetupViewport(width, height);
+
+    CORE.Window.currentFbo.width = width;
+    CORE.Window.currentFbo.height = height;
+    CORE.Window.resizedLastFrame = true;
+
+    if (IsWindowFullscreen()) return;
+
+    // Set current screen size
+    if ((CORE.Window.flags & FLAG_WINDOW_HIGHDPI) > 0)
+    {
+        Vector2 windowScaleDPI = GetWindowScaleDPI();
+
+        CORE.Window.screen.width = (unsigned int)(width/windowScaleDPI.x);
+        CORE.Window.screen.height = (unsigned int)(height/windowScaleDPI.y);
+    }
+    else
+    {
+        CORE.Window.screen.width = width;
+        CORE.Window.screen.height = height;
+    }
+
+    // NOTE: Postprocessing texture is not scaled to new size
+}
+
+static void WindowContentScaleCallback(GLFWwindow *window, float scalex, float scaley)
+{
+    CORE.Window.screenScale = MatrixScale(scalex, scaley, 1.0f);
+}
+
+// GLFW3 WindowIconify Callback, runs when window is minimized/restored
+static void WindowIconifyCallback(GLFWwindow *window, int iconified)
+{
+    if (iconified) CORE.Window.flags |= FLAG_WINDOW_MINIMIZED;  // The window was iconified
+    else CORE.Window.flags &= ~FLAG_WINDOW_MINIMIZED;           // The window was restored
+}
+
+/*
+// GLFW3 Window Maximize Callback, runs when window is maximized
+static void WindowMaximizeCallback(GLFWwindow *window, int maximized)
+{
+    // TODO.
+}
+*/
+
+// GLFW3 WindowFocus Callback, runs when window get/lose focus
+static void WindowFocusCallback(GLFWwindow *window, int focused)
+{
+    if (focused) CORE.Window.flags &= ~FLAG_WINDOW_UNFOCUSED;   // The window was focused
+    else CORE.Window.flags |= FLAG_WINDOW_UNFOCUSED;            // The window lost focus
+}
+
+// GLFW3 Window Drop Callback, runs when drop files into window
+static void WindowDropCallback(GLFWwindow *window, int count, const char **paths)
+{
+    if (count > 0)
+    {
+        // In case previous dropped filepaths have not been freed, we free them
+        if (CORE.Window.dropFileCount > 0)
+        {
+            for (unsigned int i = 0; i < CORE.Window.dropFileCount; i++) RL_FREE(CORE.Window.dropFilepaths[i]);
+
+            RL_FREE(CORE.Window.dropFilepaths);
+
+            CORE.Window.dropFileCount = 0;
+            CORE.Window.dropFilepaths = NULL;
+        }
+
+        // WARNING: Paths are freed by GLFW when the callback returns, we must keep an internal copy
+        CORE.Window.dropFileCount = count;
+        CORE.Window.dropFilepaths = (char **)RL_CALLOC(CORE.Window.dropFileCount, sizeof(char *));
+
+        for (unsigned int i = 0; i < CORE.Window.dropFileCount; i++)
+        {
+            CORE.Window.dropFilepaths[i] = (char *)RL_CALLOC(MAX_FILEPATH_LENGTH, sizeof(char));
+            strcpy(CORE.Window.dropFilepaths[i], paths[i]);
+        }
+    }
+}
+
+// GLFW3 Keyboard Callback, runs on key pressed
+static void KeyCallback(GLFWwindow *window, int key, int scancode, int action, int mods)
+{
+    if (key < 0) return;    // Security check, macOS fn key generates -1
+
+    // WARNING: GLFW could return GLFW_REPEAT, we need to consider it as 1
+    // to work properly with our implementation (IsKeyDown/IsKeyUp checks)
+    if (action == GLFW_RELEASE) CORE.Input.Keyboard.currentKeyState[key] = 0;
+    else if(action == GLFW_PRESS) CORE.Input.Keyboard.currentKeyState[key] = 1;
+    else if(action == GLFW_REPEAT) CORE.Input.Keyboard.keyRepeatInFrame[key] = 1;
+
+    // Check if there is space available in the key queue
+    if ((CORE.Input.Keyboard.keyPressedQueueCount < MAX_KEY_PRESSED_QUEUE) && (action == GLFW_PRESS))
+    {
+        // Add character to the queue
+        CORE.Input.Keyboard.keyPressedQueue[CORE.Input.Keyboard.keyPressedQueueCount] = key;
+        CORE.Input.Keyboard.keyPressedQueueCount++;
+    }
+
+    // Check the exit key to set close window
+    if ((key == CORE.Input.Keyboard.exitKey) && (action == GLFW_PRESS)) glfwSetWindowShouldClose(platform.handle, GLFW_TRUE);
+}
+
+// GLFW3 Char Key Callback, runs on key down (gets equivalent unicode char value)
+static void CharCallback(GLFWwindow *window, unsigned int key)
+{
+    //TRACELOG(LOG_DEBUG, "Char Callback: KEY:%i(%c)", key, key);
+
+    // NOTE: Registers any key down considering OS keyboard layout but
+    // does not detect action events, those should be managed by user...
+    // Ref: https://github.com/glfw/glfw/issues/668#issuecomment-166794907
+    // Ref: https://www.glfw.org/docs/latest/input_guide.html#input_char
+
+    // Check if there is space available in the queue
+    if (CORE.Input.Keyboard.charPressedQueueCount < MAX_CHAR_PRESSED_QUEUE)
+    {
+        // Add character to the queue
+        CORE.Input.Keyboard.charPressedQueue[CORE.Input.Keyboard.charPressedQueueCount] = key;
+        CORE.Input.Keyboard.charPressedQueueCount++;
+    }
+}
+
+// GLFW3 Mouse Button Callback, runs on mouse button pressed
+static void MouseButtonCallback(GLFWwindow *window, int button, int action, int mods)
+{
+    // WARNING: GLFW could only return GLFW_PRESS (1) or GLFW_RELEASE (0) for now,
+    // but future releases may add more actions (i.e. GLFW_REPEAT)
+    CORE.Input.Mouse.currentButtonState[button] = action;
+    CORE.Input.Touch.currentTouchState[button] = action;
+
+#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES)
+    // Process mouse events as touches to be able to use mouse-gestures
+    GestureEvent gestureEvent = { 0 };
+
+    // Register touch actions
+    if ((CORE.Input.Mouse.currentButtonState[button] == 1) && (CORE.Input.Mouse.previousButtonState[button] == 0)) gestureEvent.touchAction = TOUCH_ACTION_DOWN;
+    else if ((CORE.Input.Mouse.currentButtonState[button] == 0) && (CORE.Input.Mouse.previousButtonState[button] == 1)) gestureEvent.touchAction = TOUCH_ACTION_UP;
+
+    // NOTE: TOUCH_ACTION_MOVE event is registered in MouseCursorPosCallback()
+
+    // Assign a pointer ID
+    gestureEvent.pointId[0] = 0;
+
+    // Register touch points count
+    gestureEvent.pointCount = 1;
+
+    // Register touch points position, only one point registered
+    gestureEvent.position[0] = GetMousePosition();
+
+    // Normalize gestureEvent.position[0] for CORE.Window.screen.width and CORE.Window.screen.height
+    gestureEvent.position[0].x /= (float)GetScreenWidth();
+    gestureEvent.position[0].y /= (float)GetScreenHeight();
+
+    // Gesture data is sent to gestures-system for processing
+    // Prevent calling ProcessGestureEvent() when Emscripten is present and there's a touch gesture, so EmscriptenTouchCallback() can handle it itself
+    if (GetMouseX() != 0 || GetMouseY() != 0) ProcessGestureEvent(gestureEvent);
+
+#endif
+}
+
+// GLFW3 Cursor Position Callback, runs on mouse move
+static void MouseCursorPosCallback(GLFWwindow *window, double x, double y)
+{
+    // If the pointer is not locked, follow the position
+    if (!CORE.Input.Mouse.cursorHidden)
+    {
+        CORE.Input.Mouse.currentPosition.x = (float)x;
+        CORE.Input.Mouse.currentPosition.y = (float)y;
+        CORE.Input.Touch.position[0] = CORE.Input.Mouse.currentPosition;
+    }
+
+#if defined(SUPPORT_GESTURES_SYSTEM) && defined(SUPPORT_MOUSE_GESTURES)
+    // Process mouse events as touches to be able to use mouse-gestures
+    GestureEvent gestureEvent = { 0 };
+
+    gestureEvent.touchAction = TOUCH_ACTION_MOVE;
+
+    // Assign a pointer ID
+    gestureEvent.pointId[0] = 0;
+
+    // Register touch points count
+    gestureEvent.pointCount = 1;
+
+    // Register touch points position, only one point registered
+    gestureEvent.position[0] = CORE.Input.Touch.position[0];
+
+    // Normalize gestureEvent.position[0] for CORE.Window.screen.width and CORE.Window.screen.height
+    gestureEvent.position[0].x /= (float)GetScreenWidth();
+    gestureEvent.position[0].y /= (float)GetScreenHeight();
+
+    // Gesture data is sent to gestures-system for processing
+    ProcessGestureEvent(gestureEvent);
+#endif
+}
+
+static EM_BOOL EmscriptenMouseMoveCallback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData)
+{
+    // To emulate the GLFW_RAW_MOUSE_MOTION property.
+    if (CORE.Input.Mouse.cursorHidden)
+    {
+        CORE.Input.Mouse.previousPosition.x = lockedMousePos.x - mouseEvent->movementX;
+        CORE.Input.Mouse.previousPosition.y = lockedMousePos.y - mouseEvent->movementY;
+    }
+
+    return 1; // The event was consumed by the callback handler
+}
+
+// GLFW3 Scrolling Callback, runs on mouse wheel
+static void MouseScrollCallback(GLFWwindow *window, double xoffset, double yoffset)
+{
+    CORE.Input.Mouse.currentWheelMove = (Vector2){ (float)xoffset, (float)yoffset };
+}
+
+// GLFW3 CursorEnter Callback, when cursor enters the window
+static void CursorEnterCallback(GLFWwindow *window, int enter)
+{
+    if (enter) CORE.Input.Mouse.cursorOnScreen = true;
+    else CORE.Input.Mouse.cursorOnScreen = false;
+}
+
+// Register fullscreen change events
+static EM_BOOL EmscriptenFullscreenChangeCallback(int eventType, const EmscriptenFullscreenChangeEvent *event, void *userData)
+{
+    // NOTE: 1. Reset the fullscreen flags if the user left fullscreen manually by pressing the Escape key
+    //       2. Which is a necessary safeguard because that case will bypass the toggles CORE.Window.flags resets
+    if (platform.ourFullscreen) platform.ourFullscreen = false;
+    else
+    {
+        const bool wasFullscreen = EM_ASM_INT( { if (document.fullscreenElement) return 1; }, 0);
+        if (!wasFullscreen)
+        {
+            CORE.Window.fullscreen = false;
+            CORE.Window.flags &= ~FLAG_FULLSCREEN_MODE;
+            CORE.Window.flags &= ~FLAG_BORDERLESS_WINDOWED_MODE;
+        }
+    }
+
+    return 1; // The event was consumed by the callback handler
+}
+
+// Register window resize event
+// static EM_BOOL EmscriptenWindowResizedCallback(int eventType, const EmscriptenUiEvent *event, void *userData)
+// {
+//     // TODO: Implement EmscriptenWindowResizedCallback()?
+
+//     return 1; // The event was consumed by the callback handler
+// }
+
+// Register DOM element resize event
+static EM_BOOL EmscriptenResizeCallback(int eventType, const EmscriptenUiEvent *event, void *userData)
+{
+    // Don't resize non-resizeable windows
+    if ((CORE.Window.flags & FLAG_WINDOW_RESIZABLE) == 0) return 1;
+
+    // This event is called whenever the window changes sizes,
+    // so the size of the canvas object is explicitly retrieved below
+    int width = EM_ASM_INT( return window.innerWidth; );
+    int height = EM_ASM_INT( return window.innerHeight; );
+
+    if (width < (int)CORE.Window.screenMin.width) width = CORE.Window.screenMin.width;
+    else if (width > (int)CORE.Window.screenMax.width && CORE.Window.screenMax.width > 0) width = CORE.Window.screenMax.width;
+
+    if (height < (int)CORE.Window.screenMin.height) height = CORE.Window.screenMin.height;
+    else if (height > (int)CORE.Window.screenMax.height && CORE.Window.screenMax.height > 0) height = CORE.Window.screenMax.height;
+
+    emscripten_set_canvas_element_size("#canvas", width, height);
+
+    SetupViewport(width, height); // Reset viewport and projection matrix for new size
+
+    CORE.Window.currentFbo.width = width;
+    CORE.Window.currentFbo.height = height;
+    CORE.Window.resizedLastFrame = true;
+
+    if (IsWindowFullscreen()) return 1;
+
+    // Set current screen size
+    CORE.Window.screen.width = width;
+    CORE.Window.screen.height = height;
+
+    // NOTE: Postprocessing texture is not scaled to new size
+
+    return 0;
+}
+
+// Register mouse input events
+static EM_BOOL EmscriptenMouseCallback(int eventType, const EmscriptenMouseEvent *mouseEvent, void *userData)
+{
+    // This is only for registering mouse click events with emscripten and doesn't need to do anything
+
+    return 1; // The event was consumed by the callback handler
+}
+
+// Register pointer lock events
+static EM_BOOL EmscriptenPointerlockCallback(int eventType, const EmscriptenPointerlockChangeEvent *pointerlockChangeEvent, void *userData)
+{
+    CORE.Input.Mouse.cursorHidden = EM_ASM_INT( { if (document.pointerLockElement) return 1; }, 0);
+
+    if (CORE.Input.Mouse.cursorHidden)
+    {
+        lockedMousePos = CORE.Input.Mouse.currentPosition;
+        CORE.Input.Mouse.previousPosition = lockedMousePos;
+    }
+
+    return 1; // The event was consumed by the callback handler
+}
+
+// Register connected/disconnected gamepads events
+static EM_BOOL EmscriptenGamepadCallback(int eventType, const EmscriptenGamepadEvent *gamepadEvent, void *userData)
+{
+    /*
+    TRACELOGD("%s: timeStamp: %g, connected: %d, index: %ld, numAxes: %d, numButtons: %d, id: \"%s\", mapping: \"%s\"",
+           eventType != 0? emscripten_event_type_to_string(eventType) : "Gamepad state",
+           gamepadEvent->timestamp, gamepadEvent->connected, gamepadEvent->index, gamepadEvent->numAxes, gamepadEvent->numButtons, gamepadEvent->id, gamepadEvent->mapping);
+
+    for (int i = 0; i < gamepadEvent->numAxes; ++i) TRACELOGD("Axis %d: %g", i, gamepadEvent->axis[i]);
+    for (int i = 0; i < gamepadEvent->numButtons; ++i) TRACELOGD("Button %d: Digital: %d, Analog: %g", i, gamepadEvent->digitalButton[i], gamepadEvent->analogButton[i]);
+    */
+
+    if ((gamepadEvent->connected) && (gamepadEvent->index < MAX_GAMEPADS))
+    {
+        CORE.Input.Gamepad.ready[gamepadEvent->index] = true;
+        sprintf(CORE.Input.Gamepad.name[gamepadEvent->index], "%s", gamepadEvent->id);
+    }
+    else CORE.Input.Gamepad.ready[gamepadEvent->index] = false;
+
+    return 1; // The event was consumed by the callback handler
+}
+
+// Register touch input events
+static EM_BOOL EmscriptenTouchCallback(int eventType, const EmscriptenTouchEvent *touchEvent, void *userData)
+{
+    // Register touch points count
+    CORE.Input.Touch.pointCount = touchEvent->numTouches;
+
+    double canvasWidth = 0.0;
+    double canvasHeight = 0.0;
+    // NOTE: emscripten_get_canvas_element_size() returns canvas.width and canvas.height but
+    // we are looking for actual CSS size: canvas.style.width and canvas.style.height
+    // EMSCRIPTEN_RESULT res = emscripten_get_canvas_element_size("#canvas", &canvasWidth, &canvasHeight);
+    emscripten_get_element_css_size("#canvas", &canvasWidth, &canvasHeight);
+
+    for (int i = 0; (i < CORE.Input.Touch.pointCount) && (i < MAX_TOUCH_POINTS); i++)
+    {
+        // Register touch points id
+        CORE.Input.Touch.pointId[i] = touchEvent->touches[i].identifier;
+
+        // Register touch points position
+        CORE.Input.Touch.position[i] = (Vector2){touchEvent->touches[i].targetX, touchEvent->touches[i].targetY};
+
+        // Normalize gestureEvent.position[x] for CORE.Window.screen.width and CORE.Window.screen.height
+        CORE.Input.Touch.position[i].x *= ((float)GetScreenWidth()/(float)canvasWidth);
+        CORE.Input.Touch.position[i].y *= ((float)GetScreenHeight()/(float)canvasHeight);
+
+        if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) CORE.Input.Touch.currentTouchState[i] = 1;
+        else if (eventType == EMSCRIPTEN_EVENT_TOUCHEND) CORE.Input.Touch.currentTouchState[i] = 0;
+    }
+
+    // Update mouse position if we detect a single touch.
+    if (CORE.Input.Touch.pointCount == 1)
+    {
+        CORE.Input.Mouse.currentPosition.x = CORE.Input.Touch.position[0].x;
+        CORE.Input.Mouse.currentPosition.y = CORE.Input.Touch.position[0].y;
+    }
+
+#if defined(SUPPORT_GESTURES_SYSTEM)
+    GestureEvent gestureEvent = {0};
+
+    gestureEvent.pointCount = CORE.Input.Touch.pointCount;
+
+    // Register touch actions
+    if (eventType == EMSCRIPTEN_EVENT_TOUCHSTART) gestureEvent.touchAction = TOUCH_ACTION_DOWN;
+    else if (eventType == EMSCRIPTEN_EVENT_TOUCHEND) gestureEvent.touchAction = TOUCH_ACTION_UP;
+    else if (eventType == EMSCRIPTEN_EVENT_TOUCHMOVE) gestureEvent.touchAction = TOUCH_ACTION_MOVE;
+    else if (eventType == EMSCRIPTEN_EVENT_TOUCHCANCEL) gestureEvent.touchAction = TOUCH_ACTION_CANCEL;
+
+    for (int i = 0; (i < gestureEvent.pointCount) && (i < MAX_TOUCH_POINTS); i++)
+    {
+        gestureEvent.pointId[i] = CORE.Input.Touch.pointId[i];
+        gestureEvent.position[i] = CORE.Input.Touch.position[i];
+
+        // Normalize gestureEvent.position[i]
+        gestureEvent.position[i].x /= (float)GetScreenWidth();
+        gestureEvent.position[i].y /= (float)GetScreenHeight();
+    }
+
+    // Gesture data is sent to gestures system for processing
+    ProcessGestureEvent(gestureEvent);
+#endif
+
+    if (eventType == EMSCRIPTEN_EVENT_TOUCHEND)
+    {
+        CORE.Input.Touch.pointCount--;
+        if (CORE.Input.Touch.pointCount < 0) CORE.Input.Touch.pointCount = 0;
+    }
+
+    return 1; // The event was consumed by the callback handler
+}
+
+// EOF