Commit 053b5f85f164dd2f730a6500096a666001dc9d5b
2022-08-25T20:18:03
SDL_windowsevents: minimize white screen flash on window creation Clear the window to black on the initial window draw, to avoid a really obnoxious white flash. This doesn't always eliminate it, but it definitely minimizes it.
diff --git a/src/video/windows/SDL_windowsevents.c b/src/video/windows/SDL_windowsevents.c
index e5903fd..7370f9e 100644
--- a/src/video/windows/SDL_windowsevents.c
+++ b/src/video/windows/SDL_windowsevents.c
@@ -1271,7 +1271,15 @@ WIN_WindowProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
/* We'll do our own drawing, prevent flicker */
case WM_ERASEBKGND:
+ if (!data->videodata->cleared)
{
+ RECT client_rect;
+ HBRUSH brush;
+ data->videodata->cleared = SDL_TRUE;
+ GetClientRect(hwnd, &client_rect);
+ brush = CreateSolidBrush(0);
+ FillRect(GetDC(hwnd), &client_rect, brush);
+ DeleteObject(brush);
}
return (1);
diff --git a/src/video/windows/SDL_windowsvideo.h b/src/video/windows/SDL_windowsvideo.h
index e07c344..cdebb4c 100644
--- a/src/video/windows/SDL_windowsvideo.h
+++ b/src/video/windows/SDL_windowsvideo.h
@@ -394,6 +394,7 @@ typedef struct SDL_VideoData
#endif /*!defined(__XBOXONE__) && !defined(__XBOXSERIES__)*/
SDL_bool dpi_scaling_enabled;
+ SDL_bool cleared;
#ifndef SDL_DISABLE_WINDOWS_IME
SDL_bool ime_com_initialized;