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[rcore][RGFW] Add fullscreen behaviour on size 0 window creation #5859

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Merged
raysan5 merged 4 commits into from
May 11, 2026
+60 −19
Merged

[rcore][RGFW] Add fullscreen behaviour on size 0 window creation #5859

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84505f9
port glfw's behaviour on size 0 window creation to rgfw
keks137 May 10, 2026
bafd974
updates with change suggestions
CrackedPixel May 11, 2026
b5e6359
Merge pull request #1 from CrackedPixel/update-rgfw-changes
keks137 May 11, 2026
cbc5a1f
don't do the FLAG_FULLSCREEN_MODE check twice for no reason
keks137 May 11, 2026
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79 changes: 60 additions & 19 deletions src/platforms/rcore_desktop_rgfw.c
100755 → 100644
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Original file line number Diff line number Diff line change
Expand Up @@ -1677,27 +1677,79 @@ int InitPlatform(void)
// Initialize RGFW internal global state, only required systems
unsigned int flags = RGFW_windowCenter | RGFW_windowAllowDND;

if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_UNDECORATED)) FLAG_SET(flags, RGFW_windowNoBorder);
if (!FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_RESIZABLE)) FLAG_SET(flags, RGFW_windowNoResize);
if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_TRANSPARENT)) FLAG_SET(flags, RGFW_windowTransparent);
if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_HIDDEN)) FLAG_SET(flags, RGFW_windowHide);
if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_MAXIMIZED)) FLAG_SET(flags, RGFW_windowMaximize);
if (!FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED)) FLAG_SET(flags, RGFW_windowFocusOnShow | RGFW_windowFocus);

if ((CORE.Window.screen.width == 0) || (CORE.Window.screen.height == 0))
{
FLAG_SET(CORE.Window.flags, FLAG_FULLSCREEN_MODE);
}

// Check window creation flags

// Init window in fullscreen mode if requested
// NOTE: Keeping original screen size for toggle
if (FLAG_IS_SET(CORE.Window.flags, FLAG_FULLSCREEN_MODE))
{
FLAG_SET(flags, RGFW_windowFullscreen);
int result = RGFW_init();
if (result != 0)
{
TRACELOG(LOG_WARNING, "RGFW: Failed to initialize RGFW");
return -1;
}

// NOTE: Fullscreen applications default to the primary monitor
RGFW_monitor *monitor = RGFW_getPrimaryMonitor();
if (!monitor)
{
TRACELOG(LOG_WARNING, "RGFW: Failed to get primary monitor");
return -1;
}

// Default display resolution to that of the current mode
CORE.Window.display.width = monitor->mode.w;
CORE.Window.display.height = monitor->mode.h;

// Check if user requested some screen size
if ((CORE.Window.screen.width == 0) || (CORE.Window.screen.height == 0))
{
// Set some default screen size in case user decides to exit fullscreen mode
CORE.Window.previousScreen.width = 800;
CORE.Window.previousScreen.height = 450;
CORE.Window.previousPosition.x = (CORE.Window.display.width - CORE.Window.previousScreen.width)/2;
CORE.Window.previousPosition.y = (CORE.Window.display.height - CORE.Window.previousScreen.height)/2;

// Set screen width/height to the display width/height
if (CORE.Window.screen.width == 0) CORE.Window.screen.width = CORE.Window.display.width;
if (CORE.Window.screen.height == 0) CORE.Window.screen.height = CORE.Window.display.height;
}
else
{
CORE.Window.previousScreen = CORE.Window.screen;
CORE.Window.screen = CORE.Window.display;
}
}

if (FLAG_IS_SET(CORE.Window.flags, FLAG_BORDERLESS_WINDOWED_MODE))
{
FLAG_SET(flags, RGFW_windowedFullscreen);
}

if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_UNDECORATED)) FLAG_SET(flags, RGFW_windowNoBorder);
if (!FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_RESIZABLE)) FLAG_SET(flags, RGFW_windowNoResize);
if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_TRANSPARENT)) FLAG_SET(flags, RGFW_windowTransparent);
if (FLAG_IS_SET(CORE.Window.flags, FLAG_FULLSCREEN_MODE)) FLAG_SET(flags, RGFW_windowFullscreen);
if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_HIDDEN)) FLAG_SET(flags, RGFW_windowHide);
if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_MAXIMIZED)) FLAG_SET(flags, RGFW_windowMaximize);
if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_HIGHDPI))
{
#if !defined(__APPLE__)
CORE.Window.screen.width = CORE.Window.screen.width * GetWindowScaleDPI().x;
CORE.Window.screen.height = CORE.Window.screen.height * GetWindowScaleDPI().y;
#endif
}

// NOTE: Some OpenGL context attributes must be set before window creation
// Check selection OpenGL version

RGFW_glHints* hints = RGFW_getGlobalHints_OpenGL();
if (rlGetVersion() == RL_OPENGL_21)
{
Expand All @@ -1720,20 +1772,9 @@ int InitPlatform(void)
hints->minor = 1;
hints->renderer = RGFW_glSoftware;
}

if (FLAG_IS_SET(CORE.Window.flags, FLAG_MSAA_4X_HINT)) hints->samples = 4;

if (!FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_UNFOCUSED)) FLAG_SET(flags, RGFW_windowFocusOnShow | RGFW_windowFocus);

if (FLAG_IS_SET(CORE.Window.flags, FLAG_WINDOW_HIGHDPI))
{
#if !defined(__APPLE__)
CORE.Window.screen.width = CORE.Window.screen.width * GetWindowScaleDPI().x;
CORE.Window.screen.height = CORE.Window.screen.height * GetWindowScaleDPI().y;
#endif
}

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);

#ifndef PLATFORM_WEB_RGFW
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