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author | Bertrand Augereau | 2003-06-05 07:52:50 +0000 |
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committer | Bertrand Augereau | 2003-06-05 07:52:50 +0000 |
commit | d510447d0505915bd11535137b8382db72a5c460 (patch) | |
tree | db12b30e4b0c2c0809a65c5739f745ba61cd2d73 /backends/sdl | |
parent | bd23bcd12827d2ba2e9695d30bc2b056306746e2 (diff) | |
download | scummvm-rg350-d510447d0505915bd11535137b8382db72a5c460.tar.gz scummvm-rg350-d510447d0505915bd11535137b8382db72a5c460.tar.bz2 scummvm-rg350-d510447d0505915bd11535137b8382db72a5c460.zip |
optimisation to blit rects in one shot when width=pitch=screenwidth
svn-id: r8317
Diffstat (limited to 'backends/sdl')
-rw-r--r-- | backends/sdl/sdl-common.cpp | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/backends/sdl/sdl-common.cpp b/backends/sdl/sdl-common.cpp index 9970d20b13..4849b1b1ca 100644 --- a/backends/sdl/sdl-common.cpp +++ b/backends/sdl/sdl-common.cpp @@ -197,11 +197,17 @@ void OSystem_SDL_Common::copy_rect(const byte *buf, int pitch, int x, int y, int error("SDL_LockSurface failed: %s.\n", SDL_GetError()); byte *dst = (byte *)_screen->pixels + y * _screenWidth + x; - do { - memcpy(dst, buf, w); - dst += _screenWidth; - buf += pitch; - } while (--h); + + if (_screenWidth==pitch && pitch==w) + memcpy (dst, buf, h*w); + else + { + do { + memcpy(dst, buf, w); + dst += _screenWidth; + buf += pitch; + } while (--h); + } SDL_UnlockSurface(_screen); } |