diff options
Diffstat (limited to 'Source/3rdParty/SDL2/src/video/SDL_blit_N.c')
| -rw-r--r-- | Source/3rdParty/SDL2/src/video/SDL_blit_N.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Source/3rdParty/SDL2/src/video/SDL_blit_N.c b/Source/3rdParty/SDL2/src/video/SDL_blit_N.c index 441cd9a..d6ec417 100644 --- a/Source/3rdParty/SDL2/src/video/SDL_blit_N.c +++ b/Source/3rdParty/SDL2/src/video/SDL_blit_N.c @@ -2333,6 +2333,31 @@ BlitNtoNKey(SDL_BlitInfo * info) /* Set up some basic variables */ ckey &= rgbmask; + /* Fastpath: same source/destination format, no Amask, bpp 32, loop is vectorized. ~10x faster */ + if (srcfmt->format == dstfmt->format && + (srcfmt->format == SDL_PIXELFORMAT_RGB888 || srcfmt->format == SDL_PIXELFORMAT_BGR888)) { + Uint32 *src32 = (Uint32*)src; + Uint32 *dst32 = (Uint32*)dst; + srcskip /= sizeof(Uint32); + dstskip /= sizeof(Uint32); + while (height--) { + /* *INDENT-OFF* */ + DUFFS_LOOP( + { + if (*src32 != ckey) { + *dst32 = *src32; + } + ++src32; + ++dst32; + }, + width); + /* *INDENT-ON* */ + src32 += srcskip; + dst32 += dstskip; + } + return; + } + while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( @@ -2380,6 +2405,34 @@ BlitNtoNKeyCopyAlpha(SDL_BlitInfo * info) dstbpp = dstfmt->BytesPerPixel; ckey &= rgbmask; + /* Fastpath: same source/destination format, with Amask, bpp 32, loop is vectorized. ~10x faster */ + if (srcfmt->format == dstfmt->format && + (srcfmt->format == SDL_PIXELFORMAT_ARGB8888 || + srcfmt->format == SDL_PIXELFORMAT_ABGR8888 || + srcfmt->format == SDL_PIXELFORMAT_BGRA8888 || + srcfmt->format == SDL_PIXELFORMAT_RGBA8888)) { + Uint32 *src32 = (Uint32*)src; + Uint32 *dst32 = (Uint32*)dst; + srcskip /= sizeof(Uint32); + dstskip /= sizeof(Uint32); + while (height--) { + /* *INDENT-OFF* */ + DUFFS_LOOP( + { + if ((*src32 & rgbmask) != ckey) { + *dst32 = *src32; + } + ++src32; + ++dst32; + }, + width); + /* *INDENT-ON* */ + src32 += srcskip; + dst32 += dstskip; + } + return; + } + while (height--) { /* *INDENT-OFF* */ DUFFS_LOOP( |