diff --git a/src/render/software/SDL_render_sw.c b/src/render/software/SDL_render_sw.c index 0c4d8401cc..160e2a10be 100644 --- a/src/render/software/SDL_render_sw.c +++ b/src/render/software/SDL_render_sw.c @@ -868,7 +868,8 @@ static bool SW_RunCommandQueue(SDL_Renderer *renderer, SDL_RenderCommand *cmd, v } else { // Prevent to do scaling + clipping on viewport boundaries as it may lose proportion if (dstrect->x < 0 || dstrect->y < 0 || dstrect->x + dstrect->w > surface->w || dstrect->y + dstrect->h > surface->h) { - SDL_Surface *tmp = SDL_CreateSurface(dstrect->w, dstrect->h, surface->format); + SDL_PixelFormat tmp_format = SDL_ISPIXELFORMAT_ALPHA(src->format) ? SDL_PIXELFORMAT_ARGB8888 : surface->format; + SDL_Surface *tmp = SDL_CreateSurface(dstrect->w, dstrect->h, tmp_format); // Scale to an intermediate surface, then blit if (tmp) { SDL_Rect r;