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add support for software rendering

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CrackedPixel 2026-04-16 23:54:05 -05:00
parent 49f88dc6ed
commit 3f56af68bb
1 changed files with 115 additions and 9 deletions
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124
src/platforms/rcore_desktop_rgfw.c
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@ -177,6 +177,13 @@ typedef struct {
RGFW_window *window; // Native display device (physical screen connection)
RGFW_monitor *monitor;
mg_gamepads minigamepad;
#if defined(GRAPHICS_API_OPENGL_SOFTWARE)
RGFW_surface* framebuffer;
u8* framebufferPixels;
i32 framebufferWidth;
i32 framebufferHeight;
#endif
} PlatformData;
//----------------------------------------------------------------------------------
@ -1121,7 +1128,19 @@ void DisableCursor(void)
// Swap back buffer with front buffer (screen drawing)
void SwapScreenBuffer(void)
{
RGFW_window_swapBuffers_OpenGL(platform.window);
#if defined(GRAPHICS_API_OPENGL_SOFTWARE)
{
// copy rlsw pixel data to the surface framebuffer
swReadPixels(0, 0, platform.framebufferWidth, platform.framebufferHeight, SW_RGBA, SW_BYTE, platform.framebufferPixels);
// blit surface to the window
RGFW_window_blitSurface(platform.window, platform.framebuffer);
}
#else
{
RGFW_window_swapBuffers_OpenGL(platform.window);
}
#endif
}
//----------------------------------------------------------------------------------
@ -1361,7 +1380,35 @@ void PollInputEvents(void)
CORE.Window.currentFbo.width = CORE.Window.screen.width;
CORE.Window.currentFbo.height = CORE.Window.screen.height;
#endif
// set flag that the window was resized
CORE.Window.resizedLastFrame = true;
#if defined(GRAPHICS_API_OPENGL_SOFTWARE)
platform.framebufferWidth = CORE.Window.currentFbo.width;
platform.framebufferHeight = CORE.Window.currentFbo.height;
// in software mode we dont have the viewport so we need to reverse the highdpi changes
if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_HIGHDPI))
{
Vector2 scaleDpi = GetWindowScaleDPI();
platform.framebufferWidth *= scaleDpi.x;
platform.framebufferHeight *= scaleDpi.y;
}
if (platform.framebufferPixels != NULL)
{
RL_FREE(platform.framebufferPixels);
platform.framebufferPixels = RL_MALLOC(platform.framebufferWidth * platform.framebufferHeight * 4);
}
if (platform.framebuffer != NULL)
{
RGFW_surface_free(platform.framebuffer);
platform.framebuffer = RGFW_window_createSurface(platform.window, platform.framebufferPixels, platform.framebufferWidth, platform.framebufferHeight, RGFW_formatBGRA8);
swResize(platform.framebufferWidth, platform.framebufferHeight);
}
#endif
} break;
case RGFW_windowMaximized:
{
@ -1639,6 +1686,12 @@ int InitPlatform(void)
hints->major = 4;
hints->minor = 3;
}
else if (rlGetVersion() == RL_OPENGL_SOFTWARE)
{
hints->major = 1;
hints->minor = 1;
hints->renderer = RGFW_glSoftware;
}
if (FLAG_IS_SET(CORE.Window.flags, FLAG_MSAA_4X_HINT)) hints->samples = 4;
@ -1654,7 +1707,8 @@ int InitPlatform(void)
RGFW_setGlobalHints_OpenGL(hints);
platform.window = RGFW_createWindow((CORE.Window.title != 0)? CORE.Window.title : " ", 0, 0, CORE.Window.screen.width, CORE.Window.screen.height, flags | RGFW_windowOpenGL);
CORE.Time.base = get_time_seconds();
// CORE.Time.base = (unsigned long long int)(get_time_seconds());
// printf("setting base: %lld\n", CORE.Time.base);
#ifndef PLATFORM_WEB_RGFW
i32 screenSizeWidth;
@ -1689,6 +1743,13 @@ int InitPlatform(void)
RGFW_window_setExitKey(platform.window, RGFW_keyNULL);
RGFW_window_makeCurrentWindow_OpenGL(platform.window);
#if defined(GRAPHICS_API_OPENGL_SOFTWARE)
platform.framebufferWidth = CORE.Window.currentFbo.width;
platform.framebufferHeight = CORE.Window.currentFbo.height;
platform.framebufferPixels = RL_MALLOC(platform.framebufferWidth * platform.framebufferHeight * 4);
platform.framebuffer = RGFW_window_createSurface(platform.window, platform.framebufferPixels, platform.framebufferWidth, platform.framebufferHeight, RGFW_formatBGRA8);
#endif
//----------------------------------------------------------------------------
// If everything work as expected, continue
@ -1749,20 +1810,63 @@ int InitPlatform(void)
//----------------------------------------------------------------------------
#if defined(RGFW_WAYLAND)
if (RGFW_usingWayland()) TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - Wayland): Initialized successfully");
else TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - X11 (fallback)): Initialized successfully");
if (rlGetVersion() == RL_OPENGL_SOFTWARE)
{
if (RGFW_usingWayland()) TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - Wayland, Software): Initialized successfully");
else TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - X11, Software (fallback)): Initialized successfully");
}
else
{
if (RGFW_usingWayland()) TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - Wayland): Initialized successfully");
else TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - X11 (fallback)): Initialized successfully");
}
#elif defined(RGFW_X11)
#if defined(__APPLE__)
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - X11 (MacOS)): Initialized successfully");
if (rlGetVersion() == RL_OPENGL_SOFTWARE)
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - X11, Software, (MacOS)): Initialized successfully");
}
else
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - X11, (MacOS)): Initialized successfully");
}
#else
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - X11): Initialized successfully");
if (rlGetVersion() == RL_OPENGL_SOFTWARE)
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - X11, Software): Initialized successfully");
}
else
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - X11): Initialized successfully");
}
#endif
#elif defined (RGFW_WINDOWS)
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - Win32): Initialized successfully");
if (rlGetVersion() == RL_OPENGL_SOFTWARE)
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - Win32, Software): Initialized successfully");
}
else
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - Win32): Initialized successfully");
}
#elif defined(RGFW_WASM)
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - WASMs): Initialized successfully");
if (rlGetVersion() == RL_OPENGL_SOFTWARE)
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - WASMs, Software): Initialized successfully");
}
else
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - WASMs): Initialized successfully");
}
#elif defined(RGFW_MACOS)
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - MacOS): Initialized successfully");
if (rlGetVersion() == RL_OPENGL_SOFTWARE)
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - MacOS, Software): Initialized successfully");
}
else
{
TRACELOG(LOG_INFO, "PLATFORM: DESKTOP (RGFW - MacOS): Initialized successfully");
}
#endif
mg_gamepads_init(&platform.minigamepad);
@ -1775,6 +1879,8 @@ void ClosePlatform(void)
{
mg_gamepads_free(&platform.minigamepad);
RGFW_window_close(platform.window);
RL_FREE(platform.framebufferPixels);
}
// Keycode mapping