Mercurial > sdl-ios-xcode
diff src/video/SDL_blit_A.c @ 1895:c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 10 Jul 2006 21:04:37 +0000 |
| parents | 398ac0f88e4d |
| children | eb5aedc79992 |
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--- a/src/video/SDL_blit_A.c Thu Jul 06 18:01:37 2006 +0000 +++ b/src/video/SDL_blit_A.c Mon Jul 10 21:04:37 2006 +0000 @@ -46,22 +46,24 @@ /* Functions to perform alpha blended blitting */ /* N->1 blending with per-surface alpha */ -static void BlitNto1SurfaceAlpha(SDL_BlitInfo *info) +static void +BlitNto1SurfaceAlpha(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint8 *src = info->s_pixels; - int srcskip = info->s_skip; - Uint8 *dst = info->d_pixels; - int dstskip = info->d_skip; - Uint8 *palmap = info->table; - SDL_PixelFormat *srcfmt = info->src; - SDL_PixelFormat *dstfmt = info->dst; - int srcbpp = srcfmt->BytesPerPixel; + int width = info->d_width; + int height = info->d_height; + Uint8 *src = info->s_pixels; + int srcskip = info->s_skip; + Uint8 *dst = info->d_pixels; + int dstskip = info->d_skip; + Uint8 *palmap = info->table; + SDL_PixelFormat *srcfmt = info->src; + SDL_PixelFormat *dstfmt = info->dst; + int srcbpp = srcfmt->BytesPerPixel; - const unsigned A = srcfmt->alpha; + const unsigned A = srcfmt->alpha; - while ( height-- ) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4( { Uint32 Pixel; @@ -93,27 +95,30 @@ src += srcbpp; }, width); - src += srcskip; - dst += dstskip; - } + /* *INDENT-ON* */ + src += srcskip; + dst += dstskip; + } } /* N->1 blending with pixel alpha */ -static void BlitNto1PixelAlpha(SDL_BlitInfo *info) +static void +BlitNto1PixelAlpha(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint8 *src = info->s_pixels; - int srcskip = info->s_skip; - Uint8 *dst = info->d_pixels; - int dstskip = info->d_skip; - Uint8 *palmap = info->table; - SDL_PixelFormat *srcfmt = info->src; - SDL_PixelFormat *dstfmt = info->dst; - int srcbpp = srcfmt->BytesPerPixel; + int width = info->d_width; + int height = info->d_height; + Uint8 *src = info->s_pixels; + int srcskip = info->s_skip; + Uint8 *dst = info->d_pixels; + int dstskip = info->d_skip; + Uint8 *palmap = info->table; + SDL_PixelFormat *srcfmt = info->src; + SDL_PixelFormat *dstfmt = info->dst; + int srcbpp = srcfmt->BytesPerPixel; - /* FIXME: fix alpha bit field expansion here too? */ - while ( height-- ) { + /* FIXME: fix alpha bit field expansion here too? */ + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4( { Uint32 Pixel; @@ -146,29 +151,32 @@ src += srcbpp; }, width); - src += srcskip; - dst += dstskip; - } + /* *INDENT-ON* */ + src += srcskip; + dst += dstskip; + } } /* colorkeyed N->1 blending with per-surface alpha */ -static void BlitNto1SurfaceAlphaKey(SDL_BlitInfo *info) +static void +BlitNto1SurfaceAlphaKey(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint8 *src = info->s_pixels; - int srcskip = info->s_skip; - Uint8 *dst = info->d_pixels; - int dstskip = info->d_skip; - Uint8 *palmap = info->table; - SDL_PixelFormat *srcfmt = info->src; - SDL_PixelFormat *dstfmt = info->dst; - int srcbpp = srcfmt->BytesPerPixel; - Uint32 ckey = srcfmt->colorkey; + int width = info->d_width; + int height = info->d_height; + Uint8 *src = info->s_pixels; + int srcskip = info->s_skip; + Uint8 *dst = info->d_pixels; + int dstskip = info->d_skip; + Uint8 *palmap = info->table; + SDL_PixelFormat *srcfmt = info->src; + SDL_PixelFormat *dstfmt = info->dst; + int srcbpp = srcfmt->BytesPerPixel; + Uint32 ckey = srcfmt->colorkey; - const int A = srcfmt->alpha; + const int A = srcfmt->alpha; - while ( height-- ) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP( { Uint32 Pixel; @@ -202,31 +210,34 @@ src += srcbpp; }, width); - src += srcskip; - dst += dstskip; - } + /* *INDENT-ON* */ + src += srcskip; + dst += dstskip; + } } #if GCC_ASMBLIT /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ -static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info) +static void +BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; - Uint32 dalpha = info->dst->Amask; - Uint8 load[8]; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; + Uint32 dalpha = info->dst->Amask; + Uint8 load[8]; - *(Uint64 *)load = 0x00fefefe00fefefeULL;/* alpha128 mask */ - movq_m2r(*load, mm4); /* alpha128 mask -> mm4 */ - *(Uint64 *)load = 0x0001010100010101ULL;/* !alpha128 mask */ - movq_m2r(*load, mm3); /* !alpha128 mask -> mm3 */ - movd_m2r(dalpha, mm7); /* dst alpha mask */ - punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ - while(height--) { + *(Uint64 *) load = 0x00fefefe00fefefeULL; /* alpha128 mask */ + movq_m2r(*load, mm4); /* alpha128 mask -> mm4 */ + *(Uint64 *) load = 0x0001010100010101ULL; /* !alpha128 mask */ + movq_m2r(*load, mm3); /* !alpha128 mask -> mm3 */ + movd_m2r(dalpha, mm7); /* dst alpha mask */ + punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP_DOUBLE2( { Uint32 s = *srcp++; @@ -253,43 +264,48 @@ dstp += 2; srcp += 2; }, width); - srcp += srcskip; - dstp += dstskip; - } - emms(); + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + emms(); } /* fast RGB888->(A)RGB888 blending with surface alpha */ -static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info) +static void +BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo * info) { - SDL_PixelFormat* df = info->dst; - unsigned alpha = info->src->alpha; + SDL_PixelFormat *df = info->dst; + unsigned alpha = info->src->alpha; + + if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { + /* only call a128 version when R,G,B occupy lower bits */ + BlitRGBtoRGBSurfaceAlpha128MMX(info); + } else { + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; - if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { - /* only call a128 version when R,G,B occupy lower bits */ - BlitRGBtoRGBSurfaceAlpha128MMX(info); - } else { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; + pxor_r2r(mm5, mm5); /* 0 -> mm5 */ + /* form the alpha mult */ + movd_m2r(alpha, mm4); /* 0000000A -> mm4 */ + punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */ + punpckldq_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */ + alpha = + (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df-> + Bshift); + movd_m2r(alpha, mm0); /* 00000FFF -> mm0 */ + punpcklbw_r2r(mm0, mm0); /* 00FFFFFF -> mm0 */ + pand_r2r(mm0, mm4); /* 0A0A0A0A -> mm4, minus 1 chan */ + /* at this point mm4 can be 000A0A0A or 0A0A0A00 or another combo */ + movd_m2r(df->Amask, mm7); /* dst alpha mask */ + punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ - pxor_r2r(mm5, mm5); /* 0 -> mm5 */ - /* form the alpha mult */ - movd_m2r(alpha, mm4); /* 0000000A -> mm4 */ - punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */ - punpckldq_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */ - alpha = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift); - movd_m2r(alpha, mm0); /* 00000FFF -> mm0 */ - punpcklbw_r2r(mm0, mm0); /* 00FFFFFF -> mm0 */ - pand_r2r(mm0, mm4); /* 0A0A0A0A -> mm4, minus 1 chan */ - /* at this point mm4 can be 000A0A0A or 0A0A0A00 or another combo */ - movd_m2r(df->Amask, mm7); /* dst alpha mask */ - punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ - - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP_DOUBLE2({ /* One Pixel Blend */ movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ @@ -337,41 +353,44 @@ srcp += 2; dstp += 2; }, width); - srcp += srcskip; - dstp += dstskip; - } - emms(); - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + emms(); + } } /* fast ARGB888->(A)RGB888 blending with pixel alpha */ -static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info) +static void +BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; - SDL_PixelFormat* sf = info->src; - Uint32 amask = sf->Amask; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; + SDL_PixelFormat *sf = info->src; + Uint32 amask = sf->Amask; - pxor_r2r(mm6, mm6); /* 0 -> mm6 */ - /* form multiplication mask */ - movd_m2r(sf->Amask, mm7); /* 0000F000 -> mm7 */ - punpcklbw_r2r(mm7, mm7); /* FF000000 -> mm7 */ - pcmpeqb_r2r(mm0, mm0); /* FFFFFFFF -> mm0 */ - movq_r2r(mm0, mm3); /* FFFFFFFF -> mm3 (for later) */ - pxor_r2r(mm0, mm7); /* 00FFFFFF -> mm7 (mult mask) */ - /* form channel masks */ - movq_r2r(mm7, mm0); /* 00FFFFFF -> mm0 */ - packsswb_r2r(mm6, mm0); /* 00000FFF -> mm0 (channel mask) */ - packsswb_r2r(mm6, mm3); /* 0000FFFF -> mm3 */ - pxor_r2r(mm0, mm3); /* 0000F000 -> mm3 (~channel mask) */ - /* get alpha channel shift */ - movd_m2r(sf->Ashift, mm5); /* Ashift -> mm5 */ + pxor_r2r(mm6, mm6); /* 0 -> mm6 */ + /* form multiplication mask */ + movd_m2r(sf->Amask, mm7); /* 0000F000 -> mm7 */ + punpcklbw_r2r(mm7, mm7); /* FF000000 -> mm7 */ + pcmpeqb_r2r(mm0, mm0); /* FFFFFFFF -> mm0 */ + movq_r2r(mm0, mm3); /* FFFFFFFF -> mm3 (for later) */ + pxor_r2r(mm0, mm7); /* 00FFFFFF -> mm7 (mult mask) */ + /* form channel masks */ + movq_r2r(mm7, mm0); /* 00FFFFFF -> mm0 */ + packsswb_r2r(mm6, mm0); /* 00000FFF -> mm0 (channel mask) */ + packsswb_r2r(mm6, mm3); /* 0000FFFF -> mm3 */ + pxor_r2r(mm0, mm3); /* 0000F000 -> mm3 (~channel mask) */ + /* get alpha channel shift */ + movd_m2r(sf->Ashift, mm5); /* Ashift -> mm5 */ - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4({ Uint32 alpha = *srcp & amask; /* FIXME: Here we special-case opaque alpha since the @@ -416,185 +435,195 @@ ++srcp; ++dstp; }, width); - srcp += srcskip; - dstp += dstskip; - } - emms(); + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + emms(); } + /* End GCC_ASMBLIT */ #elif MSVC_ASMBLIT /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ -static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info) +static void +BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; - Uint32 dalpha = info->dst->Amask; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; + Uint32 dalpha = info->dst->Amask; + + __m64 src1, src2, dst1, dst2, lmask, hmask, dsta; - __m64 src1, src2, dst1, dst2, lmask, hmask, dsta; - - hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */ - lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */ - dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ + hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */ + lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */ + dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ + + while (height--) { + int n = width; + if (n & 1) { + Uint32 s = *srcp++; + Uint32 d = *dstp; + *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) + + (s & d & 0x00010101)) | dalpha; + n--; + } - while (height--) { - int n = width; - if ( n & 1 ) { - Uint32 s = *srcp++; - Uint32 d = *dstp; - *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) - + (s & d & 0x00010101)) | dalpha; - n--; - } - - for (n >>= 1; n > 0; --n) { - dst1 = *(__m64*)dstp; /* 2 x dst -> dst1(ARGBARGB) */ - dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ + for (n >>= 1; n > 0; --n) { + dst1 = *(__m64 *) dstp; /* 2 x dst -> dst1(ARGBARGB) */ + dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ - src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB) */ - src2 = src1; /* 2 x src -> src2(ARGBARGB) */ + src1 = *(__m64 *) srcp; /* 2 x src -> src1(ARGBARGB) */ + src2 = src1; /* 2 x src -> src2(ARGBARGB) */ + + dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */ + src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */ + src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */ + src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */ - dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */ - src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */ - src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */ - src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */ + dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */ + dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */ + dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */ + dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) | dst1 -> dst1 */ - dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */ - dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */ - dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */ - dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) | dst1 -> dst1 */ - - *(__m64*)dstp = dst1; /* dst1 -> 2 x dst pixels */ - dstp += 2; - srcp += 2; - } - - srcp += srcskip; - dstp += dstskip; - } - _mm_empty(); + *(__m64 *) dstp = dst1; /* dst1 -> 2 x dst pixels */ + dstp += 2; + srcp += 2; + } + + srcp += srcskip; + dstp += dstskip; + } + _mm_empty(); } /* fast RGB888->(A)RGB888 blending with surface alpha */ -static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info) +static void +BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo * info) { - SDL_PixelFormat* df = info->dst; - Uint32 chanmask = df->Rmask | df->Gmask | df->Bmask; - unsigned alpha = info->src->alpha; + SDL_PixelFormat *df = info->dst; + Uint32 chanmask = df->Rmask | df->Gmask | df->Bmask; + unsigned alpha = info->src->alpha; - if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { - /* only call a128 version when R,G,B occupy lower bits */ - BlitRGBtoRGBSurfaceAlpha128MMX(info); - } else { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; - Uint32 dalpha = df->Amask; - Uint32 amult; + if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { + /* only call a128 version when R,G,B occupy lower bits */ + BlitRGBtoRGBSurfaceAlpha128MMX(info); + } else { + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; + Uint32 dalpha = df->Amask; + Uint32 amult; + + __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta; - __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta; - - mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ - /* form the alpha mult */ - amult = alpha | (alpha << 8); - amult = amult | (amult << 16); - chanmask = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift); - mm_alpha = _mm_set_pi32(0, amult & chanmask); /* 0000AAAA -> mm_alpha, minus 1 chan */ - mm_alpha = _mm_unpacklo_pi8(mm_alpha, mm_zero); /* 0A0A0A0A -> mm_alpha, minus 1 chan */ - /* at this point mm_alpha can be 000A0A0A or 0A0A0A00 or another combo */ - dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ - - while (height--) { - int n = width; - if (n & 1) { - /* One Pixel Blend */ - src2 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src2 (0000ARGB)*/ - src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */ + mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ + /* form the alpha mult */ + amult = alpha | (alpha << 8); + amult = amult | (amult << 16); + chanmask = + (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df-> + Bshift); + mm_alpha = _mm_set_pi32(0, amult & chanmask); /* 0000AAAA -> mm_alpha, minus 1 chan */ + mm_alpha = _mm_unpacklo_pi8(mm_alpha, mm_zero); /* 0A0A0A0A -> mm_alpha, minus 1 chan */ + /* at this point mm_alpha can be 000A0A0A or 0A0A0A00 or another combo */ + dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ - dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ - dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ + while (height--) { + int n = width; + if (n & 1) { + /* One Pixel Blend */ + src2 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src2 (0000ARGB) */ + src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */ + + dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB) */ + dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ - src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */ - src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ - src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ - dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */ - - dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ - dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ - *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ + src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */ + src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ + src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ + dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */ + + dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ + dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ + *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ - ++srcp; - ++dstp; - - n--; - } + ++srcp; + ++dstp; + + n--; + } - for (n >>= 1; n > 0; --n) { - /* Two Pixels Blend */ - src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB)*/ - src2 = src1; /* 2 x src -> src2(ARGBARGB) */ - src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */ - src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */ + for (n >>= 1; n > 0; --n) { + /* Two Pixels Blend */ + src1 = *(__m64 *) srcp; /* 2 x src -> src1(ARGBARGB) */ + src2 = src1; /* 2 x src -> src2(ARGBARGB) */ + src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */ + src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */ - dst1 = *(__m64*)dstp;/* 2 x dst -> dst1(ARGBARGB) */ - dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ - dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */ - dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */ + dst1 = *(__m64 *) dstp; /* 2 x dst -> dst1(ARGBARGB) */ + dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ + dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */ + dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */ - src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */ - src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */ - src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */ - dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */ + src1 = _mm_sub_pi16(src1, dst1); /* src1 - dst1 -> src1 */ + src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */ + src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */ + dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */ - src2 = _mm_sub_pi16(src2, dst2);/* src2 - dst2 -> src2 */ - src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ - src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ - dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */ - - dst1 = _mm_packs_pu16(dst1, dst2); /* 0A0R0G0B(res1), 0A0R0G0B(res2) -> dst1(ARGBARGB) */ - dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ + src2 = _mm_sub_pi16(src2, dst2); /* src2 - dst2 -> src2 */ + src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ + src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ + dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */ + + dst1 = _mm_packs_pu16(dst1, dst2); /* 0A0R0G0B(res1), 0A0R0G0B(res2) -> dst1(ARGBARGB) */ + dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ - *(__m64*)dstp = dst1; /* dst1 -> 2 x pixel */ + *(__m64 *) dstp = dst1; /* dst1 -> 2 x pixel */ - srcp += 2; - dstp += 2; - } - srcp += srcskip; - dstp += dstskip; - } - _mm_empty(); - } + srcp += 2; + dstp += 2; + } + srcp += srcskip; + dstp += dstskip; + } + _mm_empty(); + } } /* fast ARGB888->(A)RGB888 blending with pixel alpha */ -static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info) +static void +BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; - SDL_PixelFormat* sf = info->src; - Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; - Uint32 amask = sf->Amask; - Uint32 ashift = sf->Ashift; - Uint64 multmask; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; + SDL_PixelFormat *sf = info->src; + Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; + Uint32 amask = sf->Amask; + Uint32 ashift = sf->Ashift; + Uint64 multmask; - __m64 src1, dst1, mm_alpha, mm_zero, dmask; + __m64 src1, dst1, mm_alpha, mm_zero, dmask; - mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ - multmask = ~(0xFFFFi64 << (ashift * 2)); - dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ + mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ + /* *INDENT-OFF* */ + multmask = ~(0xFFFFI64 << (ashift * 2)); + /* *INDENT-ON* */ + dmask = *(__m64 *) & multmask; /* dst alpha mask -> dmask */ - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4({ Uint32 alpha = *srcp & amask; if (alpha == 0) { @@ -627,11 +656,13 @@ ++srcp; ++dstp; }, width); - srcp += srcskip; - dstp += dstskip; - } - _mm_empty(); + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + _mm_empty(); } + /* End MSVC_ASMBLIT */ #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ @@ -646,14 +677,14 @@ #include <assert.h> #if (defined(__MACOSX__) && (__GNUC__ < 4)) - #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ +#define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p ) - #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ +#define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ (vector unsigned short) ( a,b,c,d,e,f,g,h ) #else - #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ +#define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p } - #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ +#define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ (vector unsigned short) { a,b,c,d,e,f,g,h } #endif @@ -678,7 +709,7 @@ ? vec_lvsl(0, src) \ : vec_add(vec_lvsl(8, src), vec_splat_u8(8))) - + #define VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1_16, v8_16) do { \ /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \ vector unsigned short vtemp1 = vec_mule(vs, valpha); \ @@ -704,10 +735,10 @@ /* (>>8) and get ARGBARGBARGBARGB */ \ vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \ } while (0) - + /* Calculate the permute vector used for 32->32 swizzling */ -static vector unsigned char calc_swizzle32(const SDL_PixelFormat *srcfmt, - const SDL_PixelFormat *dstfmt) +static vector unsigned char +calc_swizzle32(const SDL_PixelFormat * srcfmt, const SDL_PixelFormat * dstfmt) { /* * We have to assume that the bits that aren't used by other @@ -720,18 +751,19 @@ 0, 0, 0, 0, 16, 8, 0, 24, 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000, - 0, 0}; + 0, 0 + }; if (!srcfmt) { srcfmt = &default_pixel_format; } if (!dstfmt) { dstfmt = &default_pixel_format; } - const vector unsigned char plus = VECUINT8_LITERAL - ( 0x00, 0x00, 0x00, 0x00, - 0x04, 0x04, 0x04, 0x04, - 0x08, 0x08, 0x08, 0x08, - 0x0C, 0x0C, 0x0C, 0x0C ); + const vector unsigned char plus = VECUINT8_LITERAL(0x00, 0x00, 0x00, 0x00, + 0x04, 0x04, 0x04, 0x04, + 0x08, 0x08, 0x08, 0x08, + 0x0C, 0x0C, 0x0C, + 0x0C); vector unsigned char vswiz; vector unsigned int srcvec; #define RESHIFT(X) (3 - ((X) >> 3)) @@ -741,22 +773,27 @@ Uint32 amask; /* Use zero for alpha if either surface doesn't have alpha */ if (dstfmt->Amask) { - amask = ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->Ashift); + amask = + ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt-> + Ashift); } else { - amask = 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ 0xFFFFFFFF); + amask = + 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ + 0xFFFFFFFF); } -#undef RESHIFT - ((unsigned int *)(char*)&srcvec)[0] = (rmask | gmask | bmask | amask); - vswiz = vec_add(plus, (vector unsigned char)vec_splat(srcvec, 0)); - return(vswiz); +#undef RESHIFT + ((unsigned int *) (char *) &srcvec)[0] = (rmask | gmask | bmask | amask); + vswiz = vec_add(plus, (vector unsigned char) vec_splat(srcvec, 0)); + return (vswiz); } -static void Blit32to565PixelAlphaAltivec(SDL_BlitInfo *info) +static void +Blit32to565PixelAlphaAltivec(SDL_BlitInfo * info) { int height = info->d_height; - Uint8 *src = (Uint8 *)info->s_pixels; + Uint8 *src = (Uint8 *) info->s_pixels; int srcskip = info->s_skip; - Uint8 *dst = (Uint8 *)info->d_pixels; + Uint8 *dst = (Uint8 *) info->d_pixels; int dstskip = info->d_skip; SDL_PixelFormat *srcfmt = info->src; @@ -767,66 +804,63 @@ vector unsigned short v3_16 = vec_splat_u16(3); vector unsigned int v8_32 = vec_splat_u32(8); vector unsigned int v16_32 = vec_add(v8_32, v8_32); - vector unsigned short v3f = VECUINT16_LITERAL( - 0x003f, 0x003f, 0x003f, 0x003f, - 0x003f, 0x003f, 0x003f, 0x003f); - vector unsigned short vfc = VECUINT16_LITERAL( - 0x00fc, 0x00fc, 0x00fc, 0x00fc, - 0x00fc, 0x00fc, 0x00fc, 0x00fc); + vector unsigned short v3f = + VECUINT16_LITERAL(0x003f, 0x003f, 0x003f, 0x003f, + 0x003f, 0x003f, 0x003f, 0x003f); + vector unsigned short vfc = + VECUINT16_LITERAL(0x00fc, 0x00fc, 0x00fc, 0x00fc, + 0x00fc, 0x00fc, 0x00fc, 0x00fc); /* - 0x10 - 0x1f is the alpha - 0x00 - 0x0e evens are the red - 0x01 - 0x0f odds are zero - */ - vector unsigned char vredalpha1 = VECUINT8_LITERAL( - 0x10, 0x00, 0x01, 0x01, - 0x10, 0x02, 0x01, 0x01, - 0x10, 0x04, 0x01, 0x01, - 0x10, 0x06, 0x01, 0x01 - ); - vector unsigned char vredalpha2 = (vector unsigned char)( - vec_add((vector unsigned int)vredalpha1, vec_sl(v8_32, v16_32)) - ); + 0x10 - 0x1f is the alpha + 0x00 - 0x0e evens are the red + 0x01 - 0x0f odds are zero + */ + vector unsigned char vredalpha1 = VECUINT8_LITERAL(0x10, 0x00, 0x01, 0x01, + 0x10, 0x02, 0x01, 0x01, + 0x10, 0x04, 0x01, 0x01, + 0x10, 0x06, 0x01, + 0x01); + vector unsigned char vredalpha2 = + (vector unsigned char) (vec_add((vector unsigned int) vredalpha1, + vec_sl(v8_32, v16_32)) + ); /* - 0x00 - 0x0f is ARxx ARxx ARxx ARxx - 0x11 - 0x0f odds are blue - */ - vector unsigned char vblue1 = VECUINT8_LITERAL( - 0x00, 0x01, 0x02, 0x11, - 0x04, 0x05, 0x06, 0x13, - 0x08, 0x09, 0x0a, 0x15, - 0x0c, 0x0d, 0x0e, 0x17 - ); - vector unsigned char vblue2 = (vector unsigned char)( - vec_add((vector unsigned int)vblue1, v8_32) - ); + 0x00 - 0x0f is ARxx ARxx ARxx ARxx + 0x11 - 0x0f odds are blue + */ + vector unsigned char vblue1 = VECUINT8_LITERAL(0x00, 0x01, 0x02, 0x11, + 0x04, 0x05, 0x06, 0x13, + 0x08, 0x09, 0x0a, 0x15, + 0x0c, 0x0d, 0x0e, 0x17); + vector unsigned char vblue2 = + (vector unsigned char) (vec_add((vector unsigned int) vblue1, v8_32) + ); /* - 0x00 - 0x0f is ARxB ARxB ARxB ARxB - 0x10 - 0x0e evens are green - */ - vector unsigned char vgreen1 = VECUINT8_LITERAL( - 0x00, 0x01, 0x10, 0x03, - 0x04, 0x05, 0x12, 0x07, - 0x08, 0x09, 0x14, 0x0b, - 0x0c, 0x0d, 0x16, 0x0f - ); - vector unsigned char vgreen2 = (vector unsigned char)( - vec_add((vector unsigned int)vgreen1, vec_sl(v8_32, v8_32)) - ); - vector unsigned char vgmerge = VECUINT8_LITERAL( - 0x00, 0x02, 0x00, 0x06, - 0x00, 0x0a, 0x00, 0x0e, - 0x00, 0x12, 0x00, 0x16, - 0x00, 0x1a, 0x00, 0x1e); + 0x00 - 0x0f is ARxB ARxB ARxB ARxB + 0x10 - 0x0e evens are green + */ + vector unsigned char vgreen1 = VECUINT8_LITERAL(0x00, 0x01, 0x10, 0x03, + 0x04, 0x05, 0x12, 0x07, + 0x08, 0x09, 0x14, 0x0b, + 0x0c, 0x0d, 0x16, 0x0f); + vector unsigned char vgreen2 = + (vector unsigned + char) (vec_add((vector unsigned int) vgreen1, vec_sl(v8_32, v8_32)) + ); + vector unsigned char vgmerge = VECUINT8_LITERAL(0x00, 0x02, 0x00, 0x06, + 0x00, 0x0a, 0x00, 0x0e, + 0x00, 0x12, 0x00, 0x16, + 0x00, 0x1a, 0x00, 0x1e); vector unsigned char mergePermute = VEC_MERGE_PERMUTE(); vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL); - vector unsigned char valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC)); + vector unsigned char valphaPermute = + vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC)); - vector unsigned short vf800 = (vector unsigned short)vec_splat_u8(-7); + vector unsigned short vf800 = (vector unsigned short) vec_splat_u8(-7); vf800 = vec_sl(vf800, vec_splat_u16(8)); - while(height--) { + while (height--) { int extrawidth; vector unsigned char valigner; vector unsigned char vsrc; @@ -855,7 +889,7 @@ ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width); extrawidth = (width % 8); valigner = VEC_ALIGNER(src); - vsrc = (vector unsigned char)vec_ld(0, src); + vsrc = (vector unsigned char) vec_ld(0, src); width -= extrawidth; while (width) { vector unsigned char valpha; @@ -865,44 +899,57 @@ vector unsigned short vpixel, vrpixel, vgpixel, vbpixel; /* Load 8 pixels from src as ARGB */ - voverflow = (vector unsigned char)vec_ld(15, src); + voverflow = (vector unsigned char) vec_ld(15, src); vsrc = vec_perm(vsrc, voverflow, valigner); vsrc1 = vec_perm(vsrc, vsrc, vpermute); src += 16; - vsrc = (vector unsigned char)vec_ld(15, src); + vsrc = (vector unsigned char) vec_ld(15, src); voverflow = vec_perm(voverflow, vsrc, valigner); vsrc2 = vec_perm(voverflow, voverflow, vpermute); src += 16; /* Load 8 pixels from dst as XRGB */ voverflow = vec_ld(0, dst); - vR = vec_and((vector unsigned short)voverflow, vf800); - vB = vec_sl((vector unsigned short)voverflow, v3_16); + vR = vec_and((vector unsigned short) voverflow, vf800); + vB = vec_sl((vector unsigned short) voverflow, v3_16); vG = vec_sl(vB, v2_16); - vdst1 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha1); - vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1); - vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1); - vdst2 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha2); - vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2); - vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2); + vdst1 = + (vector unsigned char) vec_perm((vector unsigned char) vR, + (vector unsigned char) vR, + vredalpha1); + vdst1 = vec_perm(vdst1, (vector unsigned char) vB, vblue1); + vdst1 = vec_perm(vdst1, (vector unsigned char) vG, vgreen1); + vdst2 = + (vector unsigned char) vec_perm((vector unsigned char) vR, + (vector unsigned char) vR, + vredalpha2); + vdst2 = vec_perm(vdst2, (vector unsigned char) vB, vblue2); + vdst2 = vec_perm(vdst2, (vector unsigned char) vG, vgreen2); /* Alpha blend 8 pixels as ARGB */ valpha = vec_perm(vsrc1, v0, valphaPermute); - VEC_MULTIPLY_ALPHA(vsrc1, vdst1, valpha, mergePermute, v1_16, v8_16); + VEC_MULTIPLY_ALPHA(vsrc1, vdst1, valpha, mergePermute, v1_16, + v8_16); valpha = vec_perm(vsrc2, v0, valphaPermute); - VEC_MULTIPLY_ALPHA(vsrc2, vdst2, valpha, mergePermute, v1_16, v8_16); + VEC_MULTIPLY_ALPHA(vsrc2, vdst2, valpha, mergePermute, v1_16, + v8_16); /* Convert 8 pixels to 565 */ - vpixel = (vector unsigned short)vec_packpx((vector unsigned int)vdst1, (vector unsigned int)vdst2); - vgpixel = (vector unsigned short)vec_perm(vdst1, vdst2, vgmerge); + vpixel = (vector unsigned short) vec_packpx((vector unsigned int) + vdst1, + (vector unsigned int) + vdst2); + vgpixel = (vector unsigned short) vec_perm(vdst1, vdst2, vgmerge); vgpixel = vec_and(vgpixel, vfc); vgpixel = vec_sl(vgpixel, v3_16); vrpixel = vec_sl(vpixel, v1_16); vrpixel = vec_and(vrpixel, vf800); vbpixel = vec_and(vpixel, v3f); - vdst1 = vec_or((vector unsigned char)vrpixel, (vector unsigned char)vgpixel); - vdst1 = vec_or(vdst1, (vector unsigned char)vbpixel); - + vdst1 = + vec_or((vector unsigned char) vrpixel, + (vector unsigned char) vgpixel); + vdst1 = vec_or(vdst1, (vector unsigned char) vbpixel); + /* Store 8 pixels */ vec_st(vdst1, 0, dst); @@ -916,13 +963,14 @@ } } -static void Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo *info) +static void +Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo * info) { unsigned alpha = info->src->alpha; int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; + Uint32 *srcp = (Uint32 *) info->s_pixels; int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; + Uint32 *dstp = (Uint32 *) info->d_pixels; int dstskip = info->d_skip >> 2; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; @@ -956,17 +1004,17 @@ vsdstPermute = calc_swizzle32(dstfmt, NULL); /* set a vector full of alpha and 255-alpha */ - ((unsigned char *)&valpha)[0] = alpha; + ((unsigned char *) &valpha)[0] = alpha; valpha = vec_splat(valpha, 0); - vbits = (vector unsigned char)vec_splat_s8(-1); + vbits = (vector unsigned char) vec_splat_s8(-1); ckey &= rgbmask; - ((unsigned int *)(char*)&vckey)[0] = ckey; + ((unsigned int *) (char *) &vckey)[0] = ckey; vckey = vec_splat(vckey, 0); - ((unsigned int *)(char*)&vrgbmask)[0] = rgbmask; + ((unsigned int *) (char *) &vrgbmask)[0] = rgbmask; vrgbmask = vec_splat(vrgbmask, 0); - while(height--) { + while (height--) { int width = info->d_width; #define ONE_PIXEL_BLEND(condition, widthvar) \ while (condition) { \ @@ -987,7 +1035,7 @@ if (width > 0) { int extrawidth = (width % 4); vector unsigned char valigner = VEC_ALIGNER(srcp); - vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); + vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); width -= extrawidth; while (width) { vector unsigned char vsel; @@ -996,18 +1044,21 @@ vector unsigned char vd_orig; /* s = *srcp */ - voverflow = (vector unsigned char)vec_ld(15, srcp); + voverflow = (vector unsigned char) vec_ld(15, srcp); vs = vec_perm(vs, voverflow, valigner); - + /* vsel is set for items that match the key */ - vsel = (vector unsigned char)vec_and((vector unsigned int)vs, vrgbmask); - vsel = (vector unsigned char)vec_cmpeq((vector unsigned int)vsel, vckey); + vsel = + (vector unsigned char) vec_and((vector unsigned int) vs, + vrgbmask); + vsel = (vector unsigned char) vec_cmpeq((vector unsigned int) + vsel, vckey); /* permute to source format */ vs = vec_perm(vs, valpha, vsrcPermute); /* d = *dstp */ - vd = (vector unsigned char)vec_ld(0, dstp); + vd = (vector unsigned char) vec_ld(0, dstp); vd_orig = vd = vec_perm(vd, v0, vsdstPermute); VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); @@ -1017,13 +1068,13 @@ /* mask out color key */ vd = vec_sel(vd, vd_orig, vsel); - + /* permute to dest format */ vd = vec_perm(vd, vbits, vdstPermute); /* *dstp = res */ - vec_st((vector unsigned int)vd, 0, dstp); - + vec_st((vector unsigned int) vd, 0, dstp); + srcp += 4; dstp += 4; width -= 4; @@ -1032,20 +1083,21 @@ ONE_PIXEL_BLEND((extrawidth), extrawidth); } #undef ONE_PIXEL_BLEND - + srcp += srcskip; dstp += dstskip; } } -static void Blit32to32PixelAlphaAltivec(SDL_BlitInfo *info) +static void +Blit32to32PixelAlphaAltivec(SDL_BlitInfo * info) { int width = info->d_width; int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; + Uint32 *srcp = (Uint32 *) info->s_pixels; int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; + Uint32 *dstp = (Uint32 *) info->d_pixels; int dstskip = info->d_skip >> 2; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; @@ -1065,13 +1117,13 @@ v8 = vec_splat_u16(8); mergePermute = VEC_MERGE_PERMUTE(); valphamask = VEC_ALPHA_MASK(); - valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC)); + valphaPermute = vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC)); vpixelmask = vec_nor(valphamask, v0); vsrcPermute = calc_swizzle32(srcfmt, NULL); vdstPermute = calc_swizzle32(NULL, dstfmt); vsdstPermute = calc_swizzle32(dstfmt, NULL); - while ( height-- ) { + while (height--) { width = info->d_width; #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ Uint32 Pixel; \ @@ -1092,7 +1144,7 @@ /* vdstPermute */ int extrawidth = (width % 4); vector unsigned char valigner = VEC_ALIGNER(srcp); - vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); + vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); width -= extrawidth; while (width) { vector unsigned char voverflow; @@ -1100,14 +1152,14 @@ vector unsigned char valpha; vector unsigned char vdstalpha; /* s = *srcp */ - voverflow = (vector unsigned char)vec_ld(15, srcp); + voverflow = (vector unsigned char) vec_ld(15, srcp); vs = vec_perm(vs, voverflow, valigner); vs = vec_perm(vs, v0, vsrcPermute); valpha = vec_perm(vs, v0, valphaPermute); - + /* d = *dstp */ - vd = (vector unsigned char)vec_ld(0, dstp); + vd = (vector unsigned char) vec_ld(0, dstp); vd = vec_perm(vd, v0, vsdstPermute); vdstalpha = vec_and(vd, valphamask); @@ -1119,8 +1171,8 @@ vd = vec_perm(vd, v0, vdstPermute); /* *dstp = res */ - vec_st((vector unsigned int)vd, 0, dstp); - + vec_st((vector unsigned int) vd, 0, dstp); + srcp += 4; dstp += 4; width -= 4; @@ -1129,21 +1181,22 @@ } ONE_PIXEL_BLEND((extrawidth), extrawidth); } - srcp += srcskip; - dstp += dstskip; + srcp += srcskip; + dstp += dstskip; #undef ONE_PIXEL_BLEND - } + } } /* fast ARGB888->(A)RGB888 blending with pixel alpha */ -static void BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo *info) +static void +BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; vector unsigned char mergePermute; vector unsigned char valphaPermute; vector unsigned char valphamask; @@ -1156,11 +1209,11 @@ v8 = vec_splat_u16(8); mergePermute = VEC_MERGE_PERMUTE(); valphamask = VEC_ALPHA_MASK(); - valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC)); - - + valphaPermute = vec_and(vec_lvsl(0, (int *) NULL), vec_splat_u8(0xC)); + + vpixelmask = vec_nor(valphamask, v0); - while(height--) { + while (height--) { width = info->d_width; #define ONE_PIXEL_BLEND(condition, widthvar) \ while ((condition)) { \ @@ -1193,7 +1246,7 @@ if (width > 0) { int extrawidth = (width % 4); vector unsigned char valigner = VEC_ALIGNER(srcp); - vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); + vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); width -= extrawidth; while (width) { vector unsigned char voverflow; @@ -1201,13 +1254,13 @@ vector unsigned char valpha; vector unsigned char vdstalpha; /* s = *srcp */ - voverflow = (vector unsigned char)vec_ld(15, srcp); + voverflow = (vector unsigned char) vec_ld(15, srcp); vs = vec_perm(vs, voverflow, valigner); valpha = vec_perm(vs, v0, valphaPermute); - + /* d = *dstp */ - vd = (vector unsigned char)vec_ld(0, dstp); + vd = (vector unsigned char) vec_ld(0, dstp); vdstalpha = vec_and(vd, valphamask); VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); @@ -1217,8 +1270,8 @@ vd = vec_or(vd, vdstalpha); /* *dstp = res */ - vec_st((vector unsigned int)vd, 0, dstp); - + vec_st((vector unsigned int) vd, 0, dstp); + srcp += 4; dstp += 4; width -= 4; @@ -1226,25 +1279,26 @@ } ONE_PIXEL_BLEND((extrawidth), extrawidth); } - srcp += srcskip; - dstp += dstskip; - } + srcp += srcskip; + dstp += dstskip; + } #undef ONE_PIXEL_BLEND } -static void Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo *info) +static void +Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo * info) { /* XXX : 6 */ - unsigned alpha = info->src->alpha; + unsigned alpha = info->src->alpha; int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; + Uint32 *srcp = (Uint32 *) info->s_pixels; int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; + Uint32 *dstp = (Uint32 *) info->d_pixels; int dstskip = info->d_skip >> 2; SDL_PixelFormat *srcfmt = info->src; SDL_PixelFormat *dstfmt = info->dst; - unsigned sA = srcfmt->alpha; - unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; + unsigned sA = srcfmt->alpha; + unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; vector unsigned char mergePermute; vector unsigned char vsrcPermute; vector unsigned char vdstPermute; @@ -1267,11 +1321,11 @@ vsdstPermute = calc_swizzle32(dstfmt, NULL); /* set a vector full of alpha and 255-alpha */ - ((unsigned char *)&valpha)[0] = alpha; + ((unsigned char *) &valpha)[0] = alpha; valpha = vec_splat(valpha, 0); - vbits = (vector unsigned char)vec_splat_s8(-1); + vbits = (vector unsigned char) vec_splat_s8(-1); - while(height--) { + while (height--) { int width = info->d_width; #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ Uint32 Pixel; \ @@ -1288,19 +1342,19 @@ if (width > 0) { int extrawidth = (width % 4); vector unsigned char valigner = vec_lvsl(0, srcp); - vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); + vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); width -= extrawidth; while (width) { vector unsigned char voverflow; vector unsigned char vd; /* s = *srcp */ - voverflow = (vector unsigned char)vec_ld(15, srcp); + voverflow = (vector unsigned char) vec_ld(15, srcp); vs = vec_perm(vs, voverflow, valigner); vs = vec_perm(vs, valpha, vsrcPermute); - + /* d = *dstp */ - vd = (vector unsigned char)vec_ld(0, dstp); + vd = (vector unsigned char) vec_ld(0, dstp); vd = vec_perm(vd, vd, vsdstPermute); VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); @@ -1310,8 +1364,8 @@ vd = vec_perm(vd, vbits, vdstPermute); /* *dstp = res */ - vec_st((vector unsigned int)vd, 0, dstp); - + vec_st((vector unsigned int) vd, 0, dstp); + srcp += 4; dstp += 4; width -= 4; @@ -1320,7 +1374,7 @@ ONE_PIXEL_BLEND((extrawidth), extrawidth); } #undef ONE_PIXEL_BLEND - + srcp += srcskip; dstp += dstskip; } @@ -1329,13 +1383,14 @@ /* fast RGB888->(A)RGB888 blending */ -static void BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo *info) +static void +BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo * info) { - unsigned alpha = info->src->alpha; + unsigned alpha = info->src->alpha; int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; + Uint32 *srcp = (Uint32 *) info->s_pixels; int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; + Uint32 *dstp = (Uint32 *) info->d_pixels; int dstskip = info->d_skip >> 2; vector unsigned char mergePermute; vector unsigned char valpha; @@ -1351,10 +1406,10 @@ valphamask = VEC_ALPHA_MASK(); /* set a vector full of alpha and 255-alpha */ - ((unsigned char *)&valpha)[0] = alpha; + ((unsigned char *) &valpha)[0] = alpha; valpha = vec_splat(valpha, 0); - while(height--) { + while (height--) { int width = info->d_width; #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ Uint32 s = *srcp; \ @@ -1375,18 +1430,18 @@ if (width > 0) { int extrawidth = (width % 4); vector unsigned char valigner = VEC_ALIGNER(srcp); - vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); + vector unsigned char vs = (vector unsigned char) vec_ld(0, srcp); width -= extrawidth; while (width) { vector unsigned char voverflow; vector unsigned char vd; /* s = *srcp */ - voverflow = (vector unsigned char)vec_ld(15, srcp); + voverflow = (vector unsigned char) vec_ld(15, srcp); vs = vec_perm(vs, voverflow, valigner); - + /* d = *dstp */ - vd = (vector unsigned char)vec_ld(0, dstp); + vd = (vector unsigned char) vec_ld(0, dstp); VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); @@ -1394,8 +1449,8 @@ vd = vec_or(vd, valphamask); /* *dstp = res */ - vec_st((vector unsigned int)vd, 0, dstp); - + vec_st((vector unsigned int) vd, 0, dstp); + srcp += 4; dstp += 4; width -= 4; @@ -1404,57 +1459,63 @@ ONE_PIXEL_BLEND((extrawidth), extrawidth); } #undef ONE_PIXEL_BLEND - + srcp += srcskip; dstp += dstskip; } } + #if __MWERKS__ #pragma altivec_model off #endif #endif /* SDL_ALTIVEC_BLITTERS */ /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ -static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo *info) +static void +BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4({ Uint32 s = *srcp++; Uint32 d = *dstp; *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) + (s & d & 0x00010101)) | 0xff000000; }, width); - srcp += srcskip; - dstp += dstskip; - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } } /* fast RGB888->(A)RGB888 blending with surface alpha */ -static void BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo *info) +static void +BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo * info) { - unsigned alpha = info->src->alpha; - if(alpha == 128) { - BlitRGBtoRGBSurfaceAlpha128(info); - } else { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; - Uint32 s; - Uint32 d; - Uint32 s1; - Uint32 d1; + unsigned alpha = info->src->alpha; + if (alpha == 128) { + BlitRGBtoRGBSurfaceAlpha128(info); + } else { + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; + Uint32 s; + Uint32 d; + Uint32 s1; + Uint32 d1; - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP_DOUBLE2({ /* One Pixel Blend */ s = *srcp; @@ -1499,23 +1560,26 @@ ++srcp; ++dstp; }, width); - srcp += srcskip; - dstp += dstskip; - } - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + } } /* fast ARGB888->(A)RGB888 blending with pixel alpha */ -static void BlitRGBtoRGBPixelAlpha(SDL_BlitInfo *info) +static void +BlitRGBtoRGBPixelAlpha(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4({ Uint32 dalpha; Uint32 d; @@ -1549,48 +1613,47 @@ ++srcp; ++dstp; }, width); - srcp += srcskip; - dstp += dstskip; - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } } #if GCC_ASMBLIT /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ -inline static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) +inline static void +BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; - SDL_PixelFormat* sf = info->src; - Uint32 amask = sf->Amask; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; + SDL_PixelFormat *sf = info->src; + Uint32 amask = sf->Amask; - __asm__ ( - /* make mm6 all zeros. */ - "pxor %%mm6, %%mm6\n" - - /* Make a mask to preserve the alpha. */ - "movd %0, %%mm7\n\t" /* 0000F000 -> mm7 */ - "punpcklbw %%mm7, %%mm7\n\t" /* FF000000 -> mm7 */ - "pcmpeqb %%mm4, %%mm4\n\t" /* FFFFFFFF -> mm4 */ - "movq %%mm4, %%mm3\n\t" /* FFFFFFFF -> mm3 (for later) */ - "pxor %%mm4, %%mm7\n\t" /* 00FFFFFF -> mm7 (mult mask) */ + __asm__( + /* make mm6 all zeros. */ + "pxor %%mm6, %%mm6\n" + /* Make a mask to preserve the alpha. */ + "movd %0, %%mm7\n\t" /* 0000F000 -> mm7 */ + "punpcklbw %%mm7, %%mm7\n\t" /* FF000000 -> mm7 */ + "pcmpeqb %%mm4, %%mm4\n\t" /* FFFFFFFF -> mm4 */ + "movq %%mm4, %%mm3\n\t" /* FFFFFFFF -> mm3 (for later) */ + "pxor %%mm4, %%mm7\n\t" /* 00FFFFFF -> mm7 (mult mask) */ + /* form channel masks */ + "movq %%mm7, %%mm4\n\t" /* 00FFFFFF -> mm4 */ + "packsswb %%mm6, %%mm4\n\t" /* 00000FFF -> mm4 (channel mask) */ + "packsswb %%mm6, %%mm3\n\t" /* 0000FFFF -> mm3 */ + "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */ + /* get alpha channel shift */ + "movd %1, %%mm5\n\t" /* Ashift -> mm5 */ + : /* nothing */ : "m"(sf->Amask), "m"(sf->Ashift)); - /* form channel masks */ - "movq %%mm7, %%mm4\n\t" /* 00FFFFFF -> mm4 */ - "packsswb %%mm6, %%mm4\n\t" /* 00000FFF -> mm4 (channel mask) */ - "packsswb %%mm6, %%mm3\n\t" /* 0000FFFF -> mm3 */ - "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */ - - /* get alpha channel shift */ - "movd %1, %%mm5\n\t" /* Ashift -> mm5 */ + while (height--) { - : /* nothing */ : "m" (sf->Amask), "m" (sf->Ashift) ); - - while(height--) { - + /* *INDENT-OFF* */ DUFFS_LOOP4({ Uint32 alpha; @@ -1662,39 +1725,43 @@ ++srcp; ++dstp; }, width); - srcp += srcskip; - dstp += dstskip; - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } - __asm__ ( - "emms\n" - : ); + __asm__("emms\n":); } + /* End GCC_ASMBLIT*/ #elif MSVC_ASMBLIT /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ -static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) +static void +BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint32 *dstp = (Uint32 *)info->d_pixels; - int dstskip = info->d_skip >> 2; - SDL_PixelFormat* sf = info->src; - Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; - Uint32 amask = sf->Amask; - Uint32 ashift = sf->Ashift; - Uint64 multmask; - - __m64 src1, dst1, mm_alpha, mm_zero, dmask; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint32 *dstp = (Uint32 *) info->d_pixels; + int dstskip = info->d_skip >> 2; + SDL_PixelFormat *sf = info->src; + Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; + Uint32 amask = sf->Amask; + Uint32 ashift = sf->Ashift; + Uint64 multmask; - mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ - multmask = ~(0xFFFFi64 << (ashift * 2)); - dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ + __m64 src1, dst1, mm_alpha, mm_zero, dmask; - while(height--) { + mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ + /* *INDENT-OFF* */ + multmask = ~(0xFFFFI64 << (ashift * 2)); + /* *INDENT-ON* */ + dmask = *(__m64 *) & multmask; /* dst alpha mask -> dmask */ + + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4({ Uint32 alpha; @@ -1732,11 +1799,13 @@ ++srcp; ++dstp; }, width); - srcp += srcskip; - dstp += dstskip; - } - _mm_empty(); + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + _mm_empty(); } + /* End MSVC_ASMBLIT */ #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ @@ -1752,138 +1821,141 @@ (((s & (mask | mask << 16)) >> 1) + ((d & (mask | mask << 16)) >> 1) \ + (s & d & (~(mask | mask << 16)))) -static void Blit16to16SurfaceAlpha128(SDL_BlitInfo *info, Uint16 mask) +static void +Blit16to16SurfaceAlpha128(SDL_BlitInfo * info, Uint16 mask) { - int width = info->d_width; - int height = info->d_height; - Uint16 *srcp = (Uint16 *)info->s_pixels; - int srcskip = info->s_skip >> 1; - Uint16 *dstp = (Uint16 *)info->d_pixels; - int dstskip = info->d_skip >> 1; + int width = info->d_width; + int height = info->d_height; + Uint16 *srcp = (Uint16 *) info->s_pixels; + int srcskip = info->s_skip >> 1; + Uint16 *dstp = (Uint16 *) info->d_pixels; + int dstskip = info->d_skip >> 1; - while(height--) { - if(((uintptr_t)srcp ^ (uintptr_t)dstp) & 2) { - /* - * Source and destination not aligned, pipeline it. - * This is mostly a win for big blits but no loss for - * small ones - */ - Uint32 prev_sw; - int w = width; + while (height--) { + if (((uintptr_t) srcp ^ (uintptr_t) dstp) & 2) { + /* + * Source and destination not aligned, pipeline it. + * This is mostly a win for big blits but no loss for + * small ones + */ + Uint32 prev_sw; + int w = width; - /* handle odd destination */ - if((uintptr_t)dstp & 2) { - Uint16 d = *dstp, s = *srcp; - *dstp = BLEND16_50(d, s, mask); - dstp++; - srcp++; - w--; - } - srcp++; /* srcp is now 32-bit aligned */ + /* handle odd destination */ + if ((uintptr_t) dstp & 2) { + Uint16 d = *dstp, s = *srcp; + *dstp = BLEND16_50(d, s, mask); + dstp++; + srcp++; + w--; + } + srcp++; /* srcp is now 32-bit aligned */ - /* bootstrap pipeline with first halfword */ - prev_sw = ((Uint32 *)srcp)[-1]; + /* bootstrap pipeline with first halfword */ + prev_sw = ((Uint32 *) srcp)[-1]; - while(w > 1) { - Uint32 sw, dw, s; - sw = *(Uint32 *)srcp; - dw = *(Uint32 *)dstp; + while (w > 1) { + Uint32 sw, dw, s; + sw = *(Uint32 *) srcp; + dw = *(Uint32 *) dstp; #if SDL_BYTEORDER == SDL_BIG_ENDIAN - s = (prev_sw << 16) + (sw >> 16); + s = (prev_sw << 16) + (sw >> 16); #else - s = (prev_sw >> 16) + (sw << 16); + s = (prev_sw >> 16) + (sw << 16); #endif - prev_sw = sw; - *(Uint32 *)dstp = BLEND2x16_50(dw, s, mask); - dstp += 2; - srcp += 2; - w -= 2; - } + prev_sw = sw; + *(Uint32 *) dstp = BLEND2x16_50(dw, s, mask); + dstp += 2; + srcp += 2; + w -= 2; + } - /* final pixel if any */ - if(w) { - Uint16 d = *dstp, s; + /* final pixel if any */ + if (w) { + Uint16 d = *dstp, s; #if SDL_BYTEORDER == SDL_BIG_ENDIAN - s = (Uint16)prev_sw; + s = (Uint16) prev_sw; #else - s = (Uint16)(prev_sw >> 16); + s = (Uint16) (prev_sw >> 16); #endif - *dstp = BLEND16_50(d, s, mask); - srcp++; - dstp++; - } - srcp += srcskip - 1; - dstp += dstskip; - } else { - /* source and destination are aligned */ - int w = width; + *dstp = BLEND16_50(d, s, mask); + srcp++; + dstp++; + } + srcp += srcskip - 1; + dstp += dstskip; + } else { + /* source and destination are aligned */ + int w = width; - /* first odd pixel? */ - if((uintptr_t)srcp & 2) { - Uint16 d = *dstp, s = *srcp; - *dstp = BLEND16_50(d, s, mask); - srcp++; - dstp++; - w--; - } - /* srcp and dstp are now 32-bit aligned */ + /* first odd pixel? */ + if ((uintptr_t) srcp & 2) { + Uint16 d = *dstp, s = *srcp; + *dstp = BLEND16_50(d, s, mask); + srcp++; + dstp++; + w--; + } + /* srcp and dstp are now 32-bit aligned */ - while(w > 1) { - Uint32 sw = *(Uint32 *)srcp; - Uint32 dw = *(Uint32 *)dstp; - *(Uint32 *)dstp = BLEND2x16_50(dw, sw, mask); - srcp += 2; - dstp += 2; - w -= 2; - } + while (w > 1) { + Uint32 sw = *(Uint32 *) srcp; + Uint32 dw = *(Uint32 *) dstp; + *(Uint32 *) dstp = BLEND2x16_50(dw, sw, mask); + srcp += 2; + dstp += 2; + w -= 2; + } - /* last odd pixel? */ - if(w) { - Uint16 d = *dstp, s = *srcp; - *dstp = BLEND16_50(d, s, mask); - srcp++; - dstp++; - } - srcp += srcskip; - dstp += dstskip; - } - } + /* last odd pixel? */ + if (w) { + Uint16 d = *dstp, s = *srcp; + *dstp = BLEND16_50(d, s, mask); + srcp++; + dstp++; + } + srcp += srcskip; + dstp += dstskip; + } + } } #if GCC_ASMBLIT /* fast RGB565->RGB565 blending with surface alpha */ -static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) +static void +Blit565to565SurfaceAlphaMMX(SDL_BlitInfo * info) { - unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ - if(alpha == 128) { - Blit16to16SurfaceAlpha128(info, 0xf7de); - } else { - int width = info->d_width; - int height = info->d_height; - Uint16 *srcp = (Uint16 *)info->s_pixels; - int srcskip = info->s_skip >> 1; - Uint16 *dstp = (Uint16 *)info->d_pixels; - int dstskip = info->d_skip >> 1; - Uint32 s, d; - Uint8 load[8]; - - alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ - *(Uint64 *)load = alpha; - alpha >>= 3; /* downscale alpha to 5 bits */ + unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ + if (alpha == 128) { + Blit16to16SurfaceAlpha128(info, 0xf7de); + } else { + int width = info->d_width; + int height = info->d_height; + Uint16 *srcp = (Uint16 *) info->s_pixels; + int srcskip = info->s_skip >> 1; + Uint16 *dstp = (Uint16 *) info->d_pixels; + int dstskip = info->d_skip >> 1; + Uint32 s, d; + Uint8 load[8]; - movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */ - punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ - punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ - /* position alpha to allow for mullo and mulhi on diff channels - to reduce the number of operations */ - psllq_i2r(3, mm0); - - /* Setup the 565 color channel masks */ - *(Uint64 *)load = 0x07E007E007E007E0ULL; - movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */ - *(Uint64 *)load = 0x001F001F001F001FULL; - movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */ - while(height--) { + alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */ + *(Uint64 *) load = alpha; + alpha >>= 3; /* downscale alpha to 5 bits */ + + movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */ + punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ + punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ + /* position alpha to allow for mullo and mulhi on diff channels + to reduce the number of operations */ + psllq_i2r(3, mm0); + + /* Setup the 565 color channel masks */ + *(Uint64 *) load = 0x07E007E007E007E0ULL; + movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */ + *(Uint64 *) load = 0x001F001F001F001FULL; + movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */ + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP_QUATRO2( { s = *srcp++; @@ -1983,46 +2055,49 @@ srcp += 4; dstp += 4; }, width); - srcp += srcskip; - dstp += dstskip; - } - emms(); - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + emms(); + } } /* fast RGB555->RGB555 blending with surface alpha */ -static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) +static void +Blit555to555SurfaceAlphaMMX(SDL_BlitInfo * info) { - unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ - if(alpha == 128) { - Blit16to16SurfaceAlpha128(info, 0xfbde); - } else { - int width = info->d_width; - int height = info->d_height; - Uint16 *srcp = (Uint16 *)info->s_pixels; - int srcskip = info->s_skip >> 1; - Uint16 *dstp = (Uint16 *)info->d_pixels; - int dstskip = info->d_skip >> 1; - Uint32 s, d; - Uint8 load[8]; - - alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ - *(Uint64 *)load = alpha; - alpha >>= 3; /* downscale alpha to 5 bits */ + unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ + if (alpha == 128) { + Blit16to16SurfaceAlpha128(info, 0xfbde); + } else { + int width = info->d_width; + int height = info->d_height; + Uint16 *srcp = (Uint16 *) info->s_pixels; + int srcskip = info->s_skip >> 1; + Uint16 *dstp = (Uint16 *) info->d_pixels; + int dstskip = info->d_skip >> 1; + Uint32 s, d; + Uint8 load[8]; - movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */ - punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ - punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ - /* position alpha to allow for mullo and mulhi on diff channels - to reduce the number of operations */ - psllq_i2r(3, mm0); + alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */ + *(Uint64 *) load = alpha; + alpha >>= 3; /* downscale alpha to 5 bits */ - /* Setup the 555 color channel masks */ - *(Uint64 *)load = 0x03E003E003E003E0ULL; - movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */ - *(Uint64 *)load = 0x001F001F001F001FULL; - movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */ - while(height--) { + movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */ + punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ + punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ + /* position alpha to allow for mullo and mulhi on diff channels + to reduce the number of operations */ + psllq_i2r(3, mm0); + + /* Setup the 555 color channel masks */ + *(Uint64 *) load = 0x03E003E003E003E0ULL; + movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */ + *(Uint64 *) load = 0x001F001F001F001FULL; + movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */ + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP_QUATRO2( { s = *srcp++; @@ -2126,48 +2201,52 @@ srcp += 4; dstp += 4; - }, width); - srcp += srcskip; - dstp += dstskip; - } - emms(); - } + }, width); + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + emms(); + } } + /* End GCC_ASMBLIT */ #elif MSVC_ASMBLIT /* fast RGB565->RGB565 blending with surface alpha */ -static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) +static void +Blit565to565SurfaceAlphaMMX(SDL_BlitInfo * info) { - unsigned alpha = info->src->alpha; - if(alpha == 128) { - Blit16to16SurfaceAlpha128(info, 0xf7de); - } else { - int width = info->d_width; - int height = info->d_height; - Uint16 *srcp = (Uint16 *)info->s_pixels; - int srcskip = info->s_skip >> 1; - Uint16 *dstp = (Uint16 *)info->d_pixels; - int dstskip = info->d_skip >> 1; - Uint32 s, d; - - __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha; + unsigned alpha = info->src->alpha; + if (alpha == 128) { + Blit16to16SurfaceAlpha128(info, 0xf7de); + } else { + int width = info->d_width; + int height = info->d_height; + Uint16 *srcp = (Uint16 *) info->s_pixels; + int srcskip = info->s_skip >> 1; + Uint16 *dstp = (Uint16 *) info->d_pixels; + int dstskip = info->d_skip >> 1; + Uint32 s, d; + + __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha; - alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ - mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ - alpha >>= 3; /* downscale alpha to 5 bits */ + alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */ + mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ + alpha >>= 3; /* downscale alpha to 5 bits */ - mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ - mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ - /* position alpha to allow for mullo and mulhi on diff channels - to reduce the number of operations */ - mm_alpha = _mm_slli_si64(mm_alpha, 3); - - /* Setup the 565 color channel masks */ - gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */ - bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ - - while(height--) { + mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ + mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ + /* position alpha to allow for mullo and mulhi on diff channels + to reduce the number of operations */ + mm_alpha = _mm_slli_si64(mm_alpha, 3); + + /* Setup the 565 color channel masks */ + gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */ + bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ + + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP_QUATRO2( { s = *srcp++; @@ -2262,47 +2341,50 @@ srcp += 4; dstp += 4; - }, width); - srcp += srcskip; - dstp += dstskip; - } - _mm_empty(); - } + }, width); + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + _mm_empty(); + } } /* fast RGB555->RGB555 blending with surface alpha */ -static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) +static void +Blit555to555SurfaceAlphaMMX(SDL_BlitInfo * info) { - unsigned alpha = info->src->alpha; - if(alpha == 128) { - Blit16to16SurfaceAlpha128(info, 0xfbde); - } else { - int width = info->d_width; - int height = info->d_height; - Uint16 *srcp = (Uint16 *)info->s_pixels; - int srcskip = info->s_skip >> 1; - Uint16 *dstp = (Uint16 *)info->d_pixels; - int dstskip = info->d_skip >> 1; - Uint32 s, d; - - __m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha; + unsigned alpha = info->src->alpha; + if (alpha == 128) { + Blit16to16SurfaceAlpha128(info, 0xfbde); + } else { + int width = info->d_width; + int height = info->d_height; + Uint16 *srcp = (Uint16 *) info->s_pixels; + int srcskip = info->s_skip >> 1; + Uint16 *dstp = (Uint16 *) info->d_pixels; + int dstskip = info->d_skip >> 1; + Uint32 s, d; + + __m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha; - alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ - mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ - alpha >>= 3; /* downscale alpha to 5 bits */ + alpha &= ~(1 + 2 + 4); /* cut alpha to get the exact same behaviour */ + mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ + alpha >>= 3; /* downscale alpha to 5 bits */ - mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ - mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ - /* position alpha to allow for mullo and mulhi on diff channels - to reduce the number of operations */ - mm_alpha = _mm_slli_si64(mm_alpha, 3); - - /* Setup the 555 color channel masks */ - rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */ - gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */ - bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ + mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ + mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ + /* position alpha to allow for mullo and mulhi on diff channels + to reduce the number of operations */ + mm_alpha = _mm_slli_si64(mm_alpha, 3); - while(height--) { + /* Setup the 555 color channel masks */ + rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */ + gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */ + bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ + + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP_QUATRO2( { s = *srcp++; @@ -2397,31 +2479,34 @@ srcp += 4; dstp += 4; - }, width); - srcp += srcskip; - dstp += dstskip; - } - _mm_empty(); - } + }, width); + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + _mm_empty(); + } } #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ /* fast RGB565->RGB565 blending with surface alpha */ -static void Blit565to565SurfaceAlpha(SDL_BlitInfo *info) +static void +Blit565to565SurfaceAlpha(SDL_BlitInfo * info) { - unsigned alpha = info->src->alpha; - if(alpha == 128) { - Blit16to16SurfaceAlpha128(info, 0xf7de); - } else { - int width = info->d_width; - int height = info->d_height; - Uint16 *srcp = (Uint16 *)info->s_pixels; - int srcskip = info->s_skip >> 1; - Uint16 *dstp = (Uint16 *)info->d_pixels; - int dstskip = info->d_skip >> 1; - alpha >>= 3; /* downscale alpha to 5 bits */ + unsigned alpha = info->src->alpha; + if (alpha == 128) { + Blit16to16SurfaceAlpha128(info, 0xf7de); + } else { + int width = info->d_width; + int height = info->d_height; + Uint16 *srcp = (Uint16 *) info->s_pixels; + int srcskip = info->s_skip >> 1; + Uint16 *dstp = (Uint16 *) info->d_pixels; + int dstskip = info->d_skip >> 1; + alpha >>= 3; /* downscale alpha to 5 bits */ - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4({ Uint32 s = *srcp++; Uint32 d = *dstp; @@ -2436,28 +2521,31 @@ d &= 0x07e0f81f; *dstp++ = (Uint16)(d | d >> 16); }, width); - srcp += srcskip; - dstp += dstskip; - } - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + } } /* fast RGB555->RGB555 blending with surface alpha */ -static void Blit555to555SurfaceAlpha(SDL_BlitInfo *info) +static void +Blit555to555SurfaceAlpha(SDL_BlitInfo * info) { - unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ - if(alpha == 128) { - Blit16to16SurfaceAlpha128(info, 0xfbde); - } else { - int width = info->d_width; - int height = info->d_height; - Uint16 *srcp = (Uint16 *)info->s_pixels; - int srcskip = info->s_skip >> 1; - Uint16 *dstp = (Uint16 *)info->d_pixels; - int dstskip = info->d_skip >> 1; - alpha >>= 3; /* downscale alpha to 5 bits */ + unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ + if (alpha == 128) { + Blit16to16SurfaceAlpha128(info, 0xfbde); + } else { + int width = info->d_width; + int height = info->d_height; + Uint16 *srcp = (Uint16 *) info->s_pixels; + int srcskip = info->s_skip >> 1; + Uint16 *dstp = (Uint16 *) info->d_pixels; + int dstskip = info->d_skip >> 1; + alpha >>= 3; /* downscale alpha to 5 bits */ - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4({ Uint32 s = *srcp++; Uint32 d = *dstp; @@ -2472,23 +2560,26 @@ d &= 0x03e07c1f; *dstp++ = (Uint16)(d | d >> 16); }, width); - srcp += srcskip; - dstp += dstskip; - } - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } + } } /* fast ARGB8888->RGB565 blending with pixel alpha */ -static void BlitARGBto565PixelAlpha(SDL_BlitInfo *info) +static void +BlitARGBto565PixelAlpha(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint16 *dstp = (Uint16 *)info->d_pixels; - int dstskip = info->d_skip >> 1; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint16 *dstp = (Uint16 *) info->d_pixels; + int dstskip = info->d_skip >> 1; - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4({ Uint32 s = *srcp; unsigned alpha = s >> 27; /* downscale alpha to 5 bits */ @@ -2516,22 +2607,25 @@ srcp++; dstp++; }, width); - srcp += srcskip; - dstp += dstskip; - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } } /* fast ARGB8888->RGB555 blending with pixel alpha */ -static void BlitARGBto555PixelAlpha(SDL_BlitInfo *info) +static void +BlitARGBto555PixelAlpha(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint32 *srcp = (Uint32 *)info->s_pixels; - int srcskip = info->s_skip >> 2; - Uint16 *dstp = (Uint16 *)info->d_pixels; - int dstskip = info->d_skip >> 1; + int width = info->d_width; + int height = info->d_height; + Uint32 *srcp = (Uint32 *) info->s_pixels; + int srcskip = info->s_skip >> 2; + Uint16 *dstp = (Uint16 *) info->d_pixels; + int dstskip = info->d_skip >> 1; - while(height--) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4({ unsigned alpha; Uint32 s = *srcp; @@ -2560,29 +2654,32 @@ srcp++; dstp++; }, width); - srcp += srcskip; - dstp += dstskip; - } + /* *INDENT-ON* */ + srcp += srcskip; + dstp += dstskip; + } } /* General (slow) N->N blending with per-surface alpha */ -static void BlitNtoNSurfaceAlpha(SDL_BlitInfo *info) +static void +BlitNtoNSurfaceAlpha(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint8 *src = info->s_pixels; - int srcskip = info->s_skip; - Uint8 *dst = info->d_pixels; - int dstskip = info->d_skip; - SDL_PixelFormat *srcfmt = info->src; - SDL_PixelFormat *dstfmt = info->dst; - int srcbpp = srcfmt->BytesPerPixel; - int dstbpp = dstfmt->BytesPerPixel; - unsigned sA = srcfmt->alpha; - unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; + int width = info->d_width; + int height = info->d_height; + Uint8 *src = info->s_pixels; + int srcskip = info->s_skip; + Uint8 *dst = info->d_pixels; + int dstskip = info->d_skip; + SDL_PixelFormat *srcfmt = info->src; + SDL_PixelFormat *dstfmt = info->dst; + int srcbpp = srcfmt->BytesPerPixel; + int dstbpp = dstfmt->BytesPerPixel; + unsigned sA = srcfmt->alpha; + unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; - if(sA) { - while ( height-- ) { + if (sA) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4( { Uint32 Pixel; @@ -2600,30 +2697,33 @@ dst += dstbpp; }, width); - src += srcskip; - dst += dstskip; - } - } + /* *INDENT-ON* */ + src += srcskip; + dst += dstskip; + } + } } /* General (slow) colorkeyed N->N blending with per-surface alpha */ -static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info) +static void +BlitNtoNSurfaceAlphaKey(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint8 *src = info->s_pixels; - int srcskip = info->s_skip; - Uint8 *dst = info->d_pixels; - int dstskip = info->d_skip; - SDL_PixelFormat *srcfmt = info->src; - SDL_PixelFormat *dstfmt = info->dst; - Uint32 ckey = srcfmt->colorkey; - int srcbpp = srcfmt->BytesPerPixel; - int dstbpp = dstfmt->BytesPerPixel; - unsigned sA = srcfmt->alpha; - unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; + int width = info->d_width; + int height = info->d_height; + Uint8 *src = info->s_pixels; + int srcskip = info->s_skip; + Uint8 *dst = info->d_pixels; + int dstskip = info->d_skip; + SDL_PixelFormat *srcfmt = info->src; + SDL_PixelFormat *dstfmt = info->dst; + Uint32 ckey = srcfmt->colorkey; + int srcbpp = srcfmt->BytesPerPixel; + int dstbpp = dstfmt->BytesPerPixel; + unsigned sA = srcfmt->alpha; + unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; - while ( height-- ) { + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4( { Uint32 Pixel; @@ -2644,36 +2744,39 @@ dst += dstbpp; }, width); - src += srcskip; - dst += dstskip; - } + /* *INDENT-ON* */ + src += srcskip; + dst += dstskip; + } } /* General (slow) N->N blending with pixel alpha */ -static void BlitNtoNPixelAlpha(SDL_BlitInfo *info) +static void +BlitNtoNPixelAlpha(SDL_BlitInfo * info) { - int width = info->d_width; - int height = info->d_height; - Uint8 *src = info->s_pixels; - int srcskip = info->s_skip; - Uint8 *dst = info->d_pixels; - int dstskip = info->d_skip; - SDL_PixelFormat *srcfmt = info->src; - SDL_PixelFormat *dstfmt = info->dst; + int width = info->d_width; + int height = info->d_height; + Uint8 *src = info->s_pixels; + int srcskip = info->s_skip; + Uint8 *dst = info->d_pixels; + int dstskip = info->d_skip; + SDL_PixelFormat *srcfmt = info->src; + SDL_PixelFormat *dstfmt = info->dst; - int srcbpp; - int dstbpp; + int srcbpp; + int dstbpp; - /* Set up some basic variables */ - srcbpp = srcfmt->BytesPerPixel; - dstbpp = dstfmt->BytesPerPixel; + /* Set up some basic variables */ + srcbpp = srcfmt->BytesPerPixel; + dstbpp = dstfmt->BytesPerPixel; - /* FIXME: for 8bpp source alpha, this doesn't get opaque values - quite right. for <8bpp source alpha, it gets them very wrong - (check all macros!) - It is unclear whether there is a good general solution that doesn't - need a branch (or a divide). */ - while ( height-- ) { + /* FIXME: for 8bpp source alpha, this doesn't get opaque values + quite right. for <8bpp source alpha, it gets them very wrong + (check all macros!) + It is unclear whether there is a good general solution that doesn't + need a branch (or a divide). */ + while (height--) { + /* *INDENT-OFF* */ DUFFS_LOOP4( { Uint32 Pixel; @@ -2695,160 +2798,155 @@ dst += dstbpp; }, width); - src += srcskip; - dst += dstskip; - } + /* *INDENT-ON* */ + src += srcskip; + dst += dstskip; + } } -SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index) +SDL_loblit +SDL_CalculateAlphaBlit(SDL_Surface * surface, int blit_index) { SDL_PixelFormat *sf = surface->format; SDL_PixelFormat *df = surface->map->dst->format; - if(sf->Amask == 0) { - if((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) { - if(df->BytesPerPixel == 1) - return BlitNto1SurfaceAlphaKey; - else + if (sf->Amask == 0) { + if ((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) { + if (df->BytesPerPixel == 1) + return BlitNto1SurfaceAlphaKey; + else #if SDL_ALTIVEC_BLITTERS - if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 && - !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) - return Blit32to32SurfaceAlphaKeyAltivec; - else + if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 && + !(surface->map->dst->flags & SDL_HWSURFACE) + && SDL_HasAltiVec()) + return Blit32to32SurfaceAlphaKeyAltivec; + else #endif - return BlitNtoNSurfaceAlphaKey; - } else { - /* Per-surface alpha blits */ - switch(df->BytesPerPixel) { - case 1: - return BlitNto1SurfaceAlpha; + return BlitNtoNSurfaceAlphaKey; + } else { + /* Per-surface alpha blits */ + switch (df->BytesPerPixel) { + case 1: + return BlitNto1SurfaceAlpha; - case 2: - if(surface->map->identity) { - if(df->Gmask == 0x7e0) - { + case 2: + if (surface->map->identity) { + if (df->Gmask == 0x7e0) { #if MMX_ASMBLIT - if(SDL_HasMMX()) - return Blit565to565SurfaceAlphaMMX; - else -#endif - return Blit565to565SurfaceAlpha; - } - else if(df->Gmask == 0x3e0) - { -#if MMX_ASMBLIT - if(SDL_HasMMX()) - return Blit555to555SurfaceAlphaMMX; - else + if (SDL_HasMMX()) + return Blit565to565SurfaceAlphaMMX; + else #endif - return Blit555to555SurfaceAlpha; - } - } - return BlitNtoNSurfaceAlpha; - - case 4: - if(sf->Rmask == df->Rmask - && sf->Gmask == df->Gmask - && sf->Bmask == df->Bmask - && sf->BytesPerPixel == 4) - { + return Blit565to565SurfaceAlpha; + } else if (df->Gmask == 0x3e0) { #if MMX_ASMBLIT - if(sf->Rshift % 8 == 0 - && sf->Gshift % 8 == 0 - && sf->Bshift % 8 == 0 - && SDL_HasMMX()) - return BlitRGBtoRGBSurfaceAlphaMMX; + if (SDL_HasMMX()) + return Blit555to555SurfaceAlphaMMX; + else #endif - if((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff) - { -#if SDL_ALTIVEC_BLITTERS - if(!(surface->map->dst->flags & SDL_HWSURFACE) - && SDL_HasAltiVec()) - return BlitRGBtoRGBSurfaceAlphaAltivec; + return Blit555to555SurfaceAlpha; + } + } + return BlitNtoNSurfaceAlpha; + + case 4: + if (sf->Rmask == df->Rmask + && sf->Gmask == df->Gmask + && sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) { +#if MMX_ASMBLIT + if (sf->Rshift % 8 == 0 + && sf->Gshift % 8 == 0 + && sf->Bshift % 8 == 0 && SDL_HasMMX()) + return BlitRGBtoRGBSurfaceAlphaMMX; #endif - return BlitRGBtoRGBSurfaceAlpha; - } - } + if ((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff) { #if SDL_ALTIVEC_BLITTERS - if((sf->BytesPerPixel == 4) && - !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) - return Blit32to32SurfaceAlphaAltivec; - else + if (!(surface->map->dst->flags & SDL_HWSURFACE) + && SDL_HasAltiVec()) + return BlitRGBtoRGBSurfaceAlphaAltivec; #endif - return BlitNtoNSurfaceAlpha; + return BlitRGBtoRGBSurfaceAlpha; + } + } +#if SDL_ALTIVEC_BLITTERS + if ((sf->BytesPerPixel == 4) && + !(surface->map->dst->flags & SDL_HWSURFACE) + && SDL_HasAltiVec()) + return Blit32to32SurfaceAlphaAltivec; + else +#endif + return BlitNtoNSurfaceAlpha; - case 3: - default: - return BlitNtoNSurfaceAlpha; - } - } + case 3: + default: + return BlitNtoNSurfaceAlpha; + } + } } else { - /* Per-pixel alpha blits */ - switch(df->BytesPerPixel) { - case 1: - return BlitNto1PixelAlpha; + /* Per-pixel alpha blits */ + switch (df->BytesPerPixel) { + case 1: + return BlitNto1PixelAlpha; - case 2: + case 2: #if SDL_ALTIVEC_BLITTERS - if(sf->BytesPerPixel == 4 && !(surface->map->dst->flags & SDL_HWSURFACE) && - df->Gmask == 0x7e0 && - df->Bmask == 0x1f && SDL_HasAltiVec()) - return Blit32to565PixelAlphaAltivec; - else + if (sf->BytesPerPixel == 4 + && !(surface->map->dst->flags & SDL_HWSURFACE) + && df->Gmask == 0x7e0 && df->Bmask == 0x1f + && SDL_HasAltiVec()) + return Blit32to565PixelAlphaAltivec; + else #endif - if(sf->BytesPerPixel == 4 && sf->Amask == 0xff000000 - && sf->Gmask == 0xff00 - && ((sf->Rmask == 0xff && df->Rmask == 0x1f) - || (sf->Bmask == 0xff && df->Bmask == 0x1f))) { - if(df->Gmask == 0x7e0) - return BlitARGBto565PixelAlpha; - else if(df->Gmask == 0x3e0) - return BlitARGBto555PixelAlpha; - } - return BlitNtoNPixelAlpha; + if (sf->BytesPerPixel == 4 && sf->Amask == 0xff000000 + && sf->Gmask == 0xff00 + && ((sf->Rmask == 0xff && df->Rmask == 0x1f) + || (sf->Bmask == 0xff && df->Bmask == 0x1f))) { + if (df->Gmask == 0x7e0) + return BlitARGBto565PixelAlpha; + else if (df->Gmask == 0x3e0) + return BlitARGBto555PixelAlpha; + } + return BlitNtoNPixelAlpha; - case 4: - if(sf->Rmask == df->Rmask - && sf->Gmask == df->Gmask - && sf->Bmask == df->Bmask - && sf->BytesPerPixel == 4) - { + case 4: + if (sf->Rmask == df->Rmask + && sf->Gmask == df->Gmask + && sf->Bmask == df->Bmask && sf->BytesPerPixel == 4) { #if MMX_ASMBLIT - if(sf->Rshift % 8 == 0 - && sf->Gshift % 8 == 0 - && sf->Bshift % 8 == 0 - && sf->Ashift % 8 == 0 - && sf->Aloss == 0) - { - if(SDL_Has3DNow()) - return BlitRGBtoRGBPixelAlphaMMX3DNOW; - if(SDL_HasMMX()) - return BlitRGBtoRGBPixelAlphaMMX; - } + if (sf->Rshift % 8 == 0 + && sf->Gshift % 8 == 0 + && sf->Bshift % 8 == 0 + && sf->Ashift % 8 == 0 && sf->Aloss == 0) { + if (SDL_Has3DNow()) + return BlitRGBtoRGBPixelAlphaMMX3DNOW; + if (SDL_HasMMX()) + return BlitRGBtoRGBPixelAlphaMMX; + } #endif - if(sf->Amask == 0xff000000) - { + if (sf->Amask == 0xff000000) { #if SDL_ALTIVEC_BLITTERS - if(!(surface->map->dst->flags & SDL_HWSURFACE) - && SDL_HasAltiVec()) - return BlitRGBtoRGBPixelAlphaAltivec; + if (!(surface->map->dst->flags & SDL_HWSURFACE) + && SDL_HasAltiVec()) + return BlitRGBtoRGBPixelAlphaAltivec; #endif - return BlitRGBtoRGBPixelAlpha; - } - } + return BlitRGBtoRGBPixelAlpha; + } + } #if SDL_ALTIVEC_BLITTERS - if (sf->Amask && sf->BytesPerPixel == 4 && - !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) - return Blit32to32PixelAlphaAltivec; - else + if (sf->Amask && sf->BytesPerPixel == 4 && + !(surface->map->dst->flags & SDL_HWSURFACE) + && SDL_HasAltiVec()) + return Blit32to32PixelAlphaAltivec; + else #endif - return BlitNtoNPixelAlpha; + return BlitNtoNPixelAlpha; - case 3: - default: - return BlitNtoNPixelAlpha; - } + case 3: + default: + return BlitNtoNPixelAlpha; + } } } +/* vi: set ts=4 sw=4 expandtab: */