geemili
/
SDL
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Fixed bug 5113 - SDL_UpdateWindowSurfaceRects BitBlt the entire surface on Win32 

Ryan C. Gordon

As discussed here:
https://discourse.libsdl.org/t/question-about-implementation-of-sdl-updatewindowsurfacerects/27561

"As you can see this function [WIN_UpdateWindowFramebuffer, in src/video/windows/SDL_windowsframebuffer.c] calls BitBlt on entire screen, even though it accepts the rects. Rects variable is not even used in this function at all. Now my question is why is that the case?"
Sam Lantinga 2020-05-29 21:26:32 -07:00
parent d000c1cd6d
commit 9325b22ef0
1 changed files with 5 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/video/windows/SDL_windowsframebuffer.c
View File

@ -99,8 +99,12 @@ int WIN_CreateWindowFramebuffer(_THIS, SDL_Window * window, Uint32 * format, voi
int WIN_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects) int WIN_UpdateWindowFramebuffer(_THIS, SDL_Window * window, const SDL_Rect * rects, int numrects)
{ {
SDL_WindowData *data = (SDL_WindowData *) window->driverdata; SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
int i;
BitBlt(data->hdc, 0, 0, window->w, window->h, data->mdc, 0, 0, SRCCOPY); for (i = 0; i < numrects; ++i) {
BitBlt(data->hdc, rects[i].x, rects[i].y, rects[i].w, rects[i].h,
data->mdc, rects[i].x, rects[i].y, SRCCOPY);
}
return 0; return 0;
} }