| commit | 2ab858c6c38ee152299445f2810dbd4c3a0ac7ee | |
| author | Anatoly Trosinenko <anatoly.trosinenko@gmail.com> | |
| Mon, 5 Feb 2018 13:32:28 +0000 (5 16:32 +0300) | ||
| committer | Gerd Hoffmann <kraxel@redhat.com> | |
| Fri, 16 Feb 2018 11:25:35 +0000 (16 12:25 +0100) | ||
| tree | 052b4bf67e767dfd82bee497d1ea5263525d8399 | treesnapshot (tar.gz zip) |
| parent | d49b87f0d1e0520443a990fc610d0f02bc63c556 | commitdiff |
sdl: restore optimized redraw
The documentation on SDL_RenderPresent function states that
"the backbuffer should be considered invalidated after each present",
so copy the entire texture on each redraw.
On the other hand, SDL_UpdateTexture function is described as
"fairly slow function", so restrict it to just the changed pixels.
Also added SDL_RenderClear call, as suggested in the documentation
page on SDL_RenderPresent.
Signed-off-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Message-id: 20180205133228.25082-1-anatoly.trosinenko@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The documentation on SDL_RenderPresent function states that
"the backbuffer should be considered invalidated after each present",
so copy the entire texture on each redraw.
On the other hand, SDL_UpdateTexture function is described as
"fairly slow function", so restrict it to just the changed pixels.
Also added SDL_RenderClear call, as suggested in the documentation
page on SDL_RenderPresent.
Signed-off-by: Anatoly Trosinenko <anatoly.trosinenko@gmail.com>
Message-id: 20180205133228.25082-1-anatoly.trosinenko@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
| ui/sdl2-2d.c | diffblobblamehistory |