Create unit-test windows hidden from the start while preserving hardware OpenGL rendering. Force double buffering for hidden X11 windows so framebuffer capture reads the rendered back buffer reliably, and keep SDL2/SDL3 behavior consistent. Update unit-test documentation to use direct desktop execution by default, with Xvfb retained for headless environments.

This change might break unit-tests in other platforms, next CI run will let us know.

include/eepp/version.hpp

@@ -4,10 +4,10 @@
 #include <eepp/config.hpp>
 #include <string>
 
-#define EEPP_MAJOR_VERSION 3
-#define EEPP_MINOR_VERSION 1
+#define EEPP_MAJOR_VERSION 4
+#define EEPP_MINOR_VERSION 0
 #define EEPP_PATCH_LEVEL 0
-#define EEPP_CODENAME "Khaya"
+#define EEPP_CODENAME "Asādhāraṇa"
 
 /** The compiled version of the library */
 #define EEPP_VERSION( x )             \

include/eepp/window/window.hpp

@@ -25,8 +25,11 @@ enum WindowStyle {
 	Resize = ( 1 << 2 ),
 	Fullscreen = ( 1 << 3 ),
 	UseDesktopResolution = ( 1 << 4 ),
+	Hidden = ( 1 << 5 ),
 #if EE_PLATFORM == EE_PLATFORM_IOS || EE_PLATFORM == EE_PLATFORM_ANDROID
 	Default = Borderless
+#elif defined( EE_UNIT_TESTS )
+	Default = Titlebar | Resize | Hidden
 #else
 	Default = Titlebar | Resize
 #endif