Mercurial > sdl-ios-xcode
annotate src/video/SDL_blit_A.c @ 3932:cd5b5c52a37e SDL-1.2
Const correctness patch for SDL_MapRGB and SDL_MapRGBA.
Fixes Bugzilla #421.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Wed, 04 Apr 2007 09:40:40 +0000 |
| parents | d65b4a73c991 |
| children | 5fbd763b1c88 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
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6 modify it under the terms of the GNU Lesser General Public |
| 0 | 7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
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22 #include "SDL_config.h" |
| 0 | 23 |
| 24 #include "SDL_video.h" | |
| 25 #include "SDL_blit.h" | |
| 26 | |
| 1542 | 27 #if SDL_ASSEMBLY_ROUTINES |
| 28 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) | |
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29 #define MMX_ASMBLIT 1 |
| 1542 | 30 #define GCC_ASMBLIT 1 |
| 31 #elif defined(_MSC_VER) && (_MSC_VER >= 1200) && defined(_M_IX86) | |
| 32 #define MMX_ASMBLIT 1 | |
| 33 #define MSVC_ASMBLIT 1 | |
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34 #endif |
| 1542 | 35 #endif /* SDL_ASSEMBLY_ROUTINES */ |
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36 |
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37 /* Function to check the CPU flags */ |
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38 #include "SDL_cpuinfo.h" |
| 1542 | 39 #if GCC_ASMBLIT |
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40 #include "mmx.h" |
| 1542 | 41 #elif MSVC_ASMBLIT |
| 42 #include <mmintrin.h> | |
| 43 #include <mm3dnow.h> | |
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44 #endif |
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45 |
| 0 | 46 /* Functions to perform alpha blended blitting */ |
| 47 | |
| 48 /* N->1 blending with per-surface alpha */ | |
| 49 static void BlitNto1SurfaceAlpha(SDL_BlitInfo *info) | |
| 50 { | |
| 51 int width = info->d_width; | |
| 52 int height = info->d_height; | |
| 53 Uint8 *src = info->s_pixels; | |
| 54 int srcskip = info->s_skip; | |
| 55 Uint8 *dst = info->d_pixels; | |
| 56 int dstskip = info->d_skip; | |
| 57 Uint8 *palmap = info->table; | |
| 58 SDL_PixelFormat *srcfmt = info->src; | |
| 59 SDL_PixelFormat *dstfmt = info->dst; | |
| 60 int srcbpp = srcfmt->BytesPerPixel; | |
| 61 | |
| 62 const unsigned A = srcfmt->alpha; | |
| 63 | |
| 64 while ( height-- ) { | |
| 65 DUFFS_LOOP4( | |
| 66 { | |
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67 Uint32 Pixel; |
| 0 | 68 unsigned sR; |
| 69 unsigned sG; | |
| 70 unsigned sB; | |
| 71 unsigned dR; | |
| 72 unsigned dG; | |
| 73 unsigned dB; | |
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74 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); |
| 0 | 75 dR = dstfmt->palette->colors[*dst].r; |
| 76 dG = dstfmt->palette->colors[*dst].g; | |
| 77 dB = dstfmt->palette->colors[*dst].b; | |
| 78 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB); | |
| 79 dR &= 0xff; | |
| 80 dG &= 0xff; | |
| 81 dB &= 0xff; | |
| 82 /* Pack RGB into 8bit pixel */ | |
| 83 if ( palmap == NULL ) { | |
| 84 *dst =((dR>>5)<<(3+2))| | |
| 85 ((dG>>5)<<(2))| | |
| 86 ((dB>>6)<<(0)); | |
| 87 } else { | |
| 88 *dst = palmap[((dR>>5)<<(3+2))| | |
| 89 ((dG>>5)<<(2)) | | |
| 90 ((dB>>6)<<(0))]; | |
| 91 } | |
| 92 dst++; | |
| 93 src += srcbpp; | |
| 94 }, | |
| 95 width); | |
| 96 src += srcskip; | |
| 97 dst += dstskip; | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 /* N->1 blending with pixel alpha */ | |
| 102 static void BlitNto1PixelAlpha(SDL_BlitInfo *info) | |
| 103 { | |
| 104 int width = info->d_width; | |
| 105 int height = info->d_height; | |
| 106 Uint8 *src = info->s_pixels; | |
| 107 int srcskip = info->s_skip; | |
| 108 Uint8 *dst = info->d_pixels; | |
| 109 int dstskip = info->d_skip; | |
| 110 Uint8 *palmap = info->table; | |
| 111 SDL_PixelFormat *srcfmt = info->src; | |
| 112 SDL_PixelFormat *dstfmt = info->dst; | |
| 113 int srcbpp = srcfmt->BytesPerPixel; | |
| 114 | |
| 115 /* FIXME: fix alpha bit field expansion here too? */ | |
| 116 while ( height-- ) { | |
| 117 DUFFS_LOOP4( | |
| 118 { | |
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119 Uint32 Pixel; |
| 0 | 120 unsigned sR; |
| 121 unsigned sG; | |
| 122 unsigned sB; | |
| 123 unsigned sA; | |
| 124 unsigned dR; | |
| 125 unsigned dG; | |
| 126 unsigned dB; | |
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127 DISEMBLE_RGBA(src,srcbpp,srcfmt,Pixel,sR,sG,sB,sA); |
| 0 | 128 dR = dstfmt->palette->colors[*dst].r; |
| 129 dG = dstfmt->palette->colors[*dst].g; | |
| 130 dB = dstfmt->palette->colors[*dst].b; | |
| 131 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); | |
| 132 dR &= 0xff; | |
| 133 dG &= 0xff; | |
| 134 dB &= 0xff; | |
| 135 /* Pack RGB into 8bit pixel */ | |
| 136 if ( palmap == NULL ) { | |
| 137 *dst =((dR>>5)<<(3+2))| | |
| 138 ((dG>>5)<<(2))| | |
| 139 ((dB>>6)<<(0)); | |
| 140 } else { | |
| 141 *dst = palmap[((dR>>5)<<(3+2))| | |
| 142 ((dG>>5)<<(2)) | | |
| 143 ((dB>>6)<<(0)) ]; | |
| 144 } | |
| 145 dst++; | |
| 146 src += srcbpp; | |
| 147 }, | |
| 148 width); | |
| 149 src += srcskip; | |
| 150 dst += dstskip; | |
| 151 } | |
| 152 } | |
| 153 | |
| 154 /* colorkeyed N->1 blending with per-surface alpha */ | |
| 155 static void BlitNto1SurfaceAlphaKey(SDL_BlitInfo *info) | |
| 156 { | |
| 157 int width = info->d_width; | |
| 158 int height = info->d_height; | |
| 159 Uint8 *src = info->s_pixels; | |
| 160 int srcskip = info->s_skip; | |
| 161 Uint8 *dst = info->d_pixels; | |
| 162 int dstskip = info->d_skip; | |
| 163 Uint8 *palmap = info->table; | |
| 164 SDL_PixelFormat *srcfmt = info->src; | |
| 165 SDL_PixelFormat *dstfmt = info->dst; | |
| 166 int srcbpp = srcfmt->BytesPerPixel; | |
| 167 Uint32 ckey = srcfmt->colorkey; | |
| 168 | |
| 169 const int A = srcfmt->alpha; | |
| 170 | |
| 171 while ( height-- ) { | |
| 172 DUFFS_LOOP( | |
| 173 { | |
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174 Uint32 Pixel; |
| 0 | 175 unsigned sR; |
| 176 unsigned sG; | |
| 177 unsigned sB; | |
| 178 unsigned dR; | |
| 179 unsigned dG; | |
| 180 unsigned dB; | |
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181 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); |
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182 if ( Pixel != ckey ) { |
| 0 | 183 dR = dstfmt->palette->colors[*dst].r; |
| 184 dG = dstfmt->palette->colors[*dst].g; | |
| 185 dB = dstfmt->palette->colors[*dst].b; | |
| 186 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB); | |
| 187 dR &= 0xff; | |
| 188 dG &= 0xff; | |
| 189 dB &= 0xff; | |
| 190 /* Pack RGB into 8bit pixel */ | |
| 191 if ( palmap == NULL ) { | |
| 192 *dst =((dR>>5)<<(3+2))| | |
| 193 ((dG>>5)<<(2)) | | |
| 194 ((dB>>6)<<(0)); | |
| 195 } else { | |
| 196 *dst = palmap[((dR>>5)<<(3+2))| | |
| 197 ((dG>>5)<<(2)) | | |
| 198 ((dB>>6)<<(0)) ]; | |
| 199 } | |
| 200 } | |
| 201 dst++; | |
| 202 src += srcbpp; | |
| 203 }, | |
| 204 width); | |
| 205 src += srcskip; | |
| 206 dst += dstskip; | |
| 207 } | |
| 208 } | |
| 209 | |
| 1542 | 210 #if GCC_ASMBLIT |
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211 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ |
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212 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info) |
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213 { |
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214 int width = info->d_width; |
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215 int height = info->d_height; |
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216 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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217 int srcskip = info->s_skip >> 2; |
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218 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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219 int dstskip = info->d_skip >> 2; |
| 1542 | 220 Uint32 dalpha = info->dst->Amask; |
| 221 Uint8 load[8]; | |
| 222 | |
| 223 *(Uint64 *)load = 0x00fefefe00fefefeULL;/* alpha128 mask */ | |
| 224 movq_m2r(*load, mm4); /* alpha128 mask -> mm4 */ | |
| 225 *(Uint64 *)load = 0x0001010100010101ULL;/* !alpha128 mask */ | |
| 226 movq_m2r(*load, mm3); /* !alpha128 mask -> mm3 */ | |
| 227 movd_m2r(dalpha, mm7); /* dst alpha mask */ | |
| 228 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ | |
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229 while(height--) { |
| 1542 | 230 DUFFS_LOOP_DOUBLE2( |
| 231 { | |
| 232 Uint32 s = *srcp++; | |
| 233 Uint32 d = *dstp; | |
| 234 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) | |
| 235 + (s & d & 0x00010101)) | dalpha; | |
| 236 },{ | |
| 237 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */ | |
| 238 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */ | |
| 239 | |
| 240 movq_m2r((*srcp), mm1);/* 2 x src -> mm1(ARGBARGB) */ | |
| 241 movq_r2r(mm1, mm5); /* 2 x src -> mm5(ARGBARGB) */ | |
| 242 | |
| 243 pand_r2r(mm4, mm6); /* dst & mask -> mm6 */ | |
| 244 pand_r2r(mm4, mm5); /* src & mask -> mm5 */ | |
| 245 paddd_r2r(mm6, mm5); /* mm6 + mm5 -> mm5 */ | |
| 246 pand_r2r(mm1, mm2); /* src & dst -> mm2 */ | |
| 247 psrld_i2r(1, mm5); /* mm5 >> 1 -> mm5 */ | |
| 248 pand_r2r(mm3, mm2); /* mm2 & !mask -> mm2 */ | |
| 249 paddd_r2r(mm5, mm2); /* mm5 + mm2 -> mm2 */ | |
| 250 | |
| 251 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */ | |
| 252 movq_r2m(mm2, (*dstp));/* mm2 -> 2 x dst pixels */ | |
| 253 dstp += 2; | |
| 254 srcp += 2; | |
| 255 }, width); | |
| 256 srcp += srcskip; | |
| 257 dstp += dstskip; | |
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258 } |
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259 emms(); |
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260 } |
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261 |
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262 /* fast RGB888->(A)RGB888 blending with surface alpha */ |
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263 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info) |
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264 { |
| 1542 | 265 SDL_PixelFormat* df = info->dst; |
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266 unsigned alpha = info->src->alpha; |
| 1542 | 267 |
| 268 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { | |
| 269 /* only call a128 version when R,G,B occupy lower bits */ | |
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270 BlitRGBtoRGBSurfaceAlpha128MMX(info); |
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271 } else { |
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272 int width = info->d_width; |
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273 int height = info->d_height; |
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274 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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275 int srcskip = info->s_skip >> 2; |
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276 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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277 int dstskip = info->d_skip >> 2; |
| 1542 | 278 |
| 279 pxor_r2r(mm5, mm5); /* 0 -> mm5 */ | |
| 280 /* form the alpha mult */ | |
| 281 movd_m2r(alpha, mm4); /* 0000000A -> mm4 */ | |
| 282 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */ | |
| 283 punpckldq_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */ | |
| 284 alpha = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift); | |
| 285 movd_m2r(alpha, mm0); /* 00000FFF -> mm0 */ | |
| 286 punpcklbw_r2r(mm0, mm0); /* 00FFFFFF -> mm0 */ | |
| 287 pand_r2r(mm0, mm4); /* 0A0A0A0A -> mm4, minus 1 chan */ | |
| 288 /* at this point mm4 can be 000A0A0A or 0A0A0A00 or another combo */ | |
| 289 movd_m2r(df->Amask, mm7); /* dst alpha mask */ | |
| 290 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ | |
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291 |
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292 while(height--) { |
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293 DUFFS_LOOP_DOUBLE2({ |
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294 /* One Pixel Blend */ |
| 1542 | 295 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ |
| 296 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ | |
| 297 punpcklbw_r2r(mm5, mm1); /* 0A0R0G0B -> mm1(src) */ | |
| 298 punpcklbw_r2r(mm5, mm2); /* 0A0R0G0B -> mm2(dst) */ | |
| 299 | |
| 300 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */ | |
| 301 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ | |
| 302 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */ | |
| 303 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */ | |
| 304 | |
| 305 packuswb_r2r(mm5, mm2); /* ARGBARGB -> mm2 */ | |
| 306 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */ | |
| 307 movd_r2m(mm2, *dstp);/* mm2 -> pixel */ | |
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308 ++srcp; |
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309 ++dstp; |
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310 },{ |
| 1542 | 311 /* Two Pixels Blend */ |
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312 movq_m2r((*srcp), mm0);/* 2 x src -> mm0(ARGBARGB)*/ |
| 1542 | 313 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */ |
| 314 movq_r2r(mm0, mm1); /* 2 x src -> mm1(ARGBARGB) */ | |
| 315 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */ | |
| 316 | |
| 317 punpcklbw_r2r(mm5, mm0); /* low - 0A0R0G0B -> mm0(src1) */ | |
| 318 punpckhbw_r2r(mm5, mm1); /* high - 0A0R0G0B -> mm1(src2) */ | |
| 319 punpcklbw_r2r(mm5, mm2); /* low - 0A0R0G0B -> mm2(dst1) */ | |
| 320 punpckhbw_r2r(mm5, mm6); /* high - 0A0R0G0B -> mm6(dst2) */ | |
| 321 | |
| 322 psubw_r2r(mm2, mm0);/* src1 - dst1 -> mm0 */ | |
| 323 pmullw_r2r(mm4, mm0); /* mm0 * alpha -> mm0 */ | |
| 324 psrlw_i2r(8, mm0); /* mm0 >> 8 -> mm1 */ | |
| 325 paddb_r2r(mm0, mm2); /* mm0 + mm2(dst1) -> mm2 */ | |
| 326 | |
| 327 psubw_r2r(mm6, mm1);/* src2 - dst2 -> mm1 */ | |
| 328 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ | |
| 329 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */ | |
| 330 paddb_r2r(mm1, mm6); /* mm1 + mm6(dst2) -> mm6 */ | |
| 331 | |
| 332 packuswb_r2r(mm6, mm2); /* ARGBARGB -> mm2 */ | |
| 333 por_r2r(mm7, mm2); /* mm7(dst alpha) | mm2 -> mm2 */ | |
| 334 | |
| 335 movq_r2m(mm2, *dstp);/* mm2 -> 2 x pixel */ | |
| 336 | |
| 337 srcp += 2; | |
| 338 dstp += 2; | |
| 339 }, width); | |
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340 srcp += srcskip; |
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341 dstp += dstskip; |
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342 } |
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343 emms(); |
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344 } |
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345 } |
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346 |
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347 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
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348 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info) |
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349 { |
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350 int width = info->d_width; |
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351 int height = info->d_height; |
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352 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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353 int srcskip = info->s_skip >> 2; |
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354 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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355 int dstskip = info->d_skip >> 2; |
| 1542 | 356 SDL_PixelFormat* sf = info->src; |
| 357 Uint32 amask = sf->Amask; | |
| 358 | |
| 359 pxor_r2r(mm6, mm6); /* 0 -> mm6 */ | |
| 360 /* form multiplication mask */ | |
| 361 movd_m2r(sf->Amask, mm7); /* 0000F000 -> mm7 */ | |
| 362 punpcklbw_r2r(mm7, mm7); /* FF000000 -> mm7 */ | |
| 363 pcmpeqb_r2r(mm0, mm0); /* FFFFFFFF -> mm0 */ | |
| 364 movq_r2r(mm0, mm3); /* FFFFFFFF -> mm3 (for later) */ | |
| 365 pxor_r2r(mm0, mm7); /* 00FFFFFF -> mm7 (mult mask) */ | |
| 366 /* form channel masks */ | |
| 367 movq_r2r(mm7, mm0); /* 00FFFFFF -> mm0 */ | |
| 368 packsswb_r2r(mm6, mm0); /* 00000FFF -> mm0 (channel mask) */ | |
| 369 packsswb_r2r(mm6, mm3); /* 0000FFFF -> mm3 */ | |
| 370 pxor_r2r(mm0, mm3); /* 0000F000 -> mm3 (~channel mask) */ | |
| 371 /* get alpha channel shift */ | |
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372 __asm__ __volatile__ ( |
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373 "movd %0, %%mm5" |
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374 : : "rm" ((Uint32) sf->Ashift) ); /* Ashift -> mm5 */ |
| 1542 | 375 |
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376 while(height--) { |
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377 DUFFS_LOOP4({ |
| 1542 | 378 Uint32 alpha = *srcp & amask; |
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379 /* FIXME: Here we special-case opaque alpha since the |
| 1542 | 380 compositioning used (>>8 instead of /255) doesn't handle |
| 381 it correctly. Also special-case alpha=0 for speed? | |
| 382 Benchmark this! */ | |
| 383 if(alpha == 0) { | |
| 384 /* do nothing */ | |
| 385 } else if(alpha == amask) { | |
| 386 /* opaque alpha -- copy RGB, keep dst alpha */ | |
| 387 /* using MMX here to free up regular registers for other things */ | |
| 388 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ | |
| 389 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ | |
| 390 pand_r2r(mm0, mm1); /* src & chanmask -> mm1 */ | |
| 391 pand_r2r(mm3, mm2); /* dst & ~chanmask -> mm2 */ | |
| 392 por_r2r(mm1, mm2); /* src | dst -> mm2 */ | |
| 393 movd_r2m(mm2, (*dstp)); /* mm2 -> dst */ | |
| 394 } else { | |
| 395 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ | |
| 396 punpcklbw_r2r(mm6, mm1); /* 0A0R0G0B -> mm1 */ | |
| 397 | |
| 398 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ | |
| 399 punpcklbw_r2r(mm6, mm2); /* 0A0R0G0B -> mm2 */ | |
| 400 | |
| 401 __asm__ __volatile__ ( | |
| 402 "movd %0, %%mm4" | |
| 403 : : "r" (alpha) ); /* 0000A000 -> mm4 */ | |
| 404 psrld_r2r(mm5, mm4); /* mm4 >> mm5 -> mm4 (0000000A) */ | |
| 405 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */ | |
| 406 punpcklwd_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */ | |
| 407 pand_r2r(mm7, mm4); /* 000A0A0A -> mm4, preserve dst alpha on add */ | |
| 408 | |
| 409 /* blend */ | |
| 410 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */ | |
| 411 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ | |
| 412 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1(000R0G0B) */ | |
| 413 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */ | |
| 414 | |
| 415 packuswb_r2r(mm6, mm2); /* 0000ARGB -> mm2 */ | |
| 416 movd_r2m(mm2, *dstp);/* mm2 -> dst */ | |
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417 } |
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418 ++srcp; |
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419 ++dstp; |
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420 }, width); |
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421 srcp += srcskip; |
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422 dstp += dstskip; |
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423 } |
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424 emms(); |
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425 } |
| 1542 | 426 /* End GCC_ASMBLIT */ |
| 427 | |
| 428 #elif MSVC_ASMBLIT | |
| 429 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ | |
| 430 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info) | |
| 431 { | |
| 432 int width = info->d_width; | |
| 433 int height = info->d_height; | |
| 434 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 435 int srcskip = info->s_skip >> 2; | |
| 436 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 437 int dstskip = info->d_skip >> 2; | |
| 438 Uint32 dalpha = info->dst->Amask; | |
| 439 | |
| 440 __m64 src1, src2, dst1, dst2, lmask, hmask, dsta; | |
| 441 | |
| 442 hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */ | |
| 443 lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */ | |
| 444 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ | |
| 445 | |
| 446 while (height--) { | |
| 447 int n = width; | |
| 448 if ( n & 1 ) { | |
| 449 Uint32 s = *srcp++; | |
| 450 Uint32 d = *dstp; | |
| 451 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) | |
| 452 + (s & d & 0x00010101)) | dalpha; | |
| 453 n--; | |
| 454 } | |
| 455 | |
| 456 for (n >>= 1; n > 0; --n) { | |
| 457 dst1 = *(__m64*)dstp; /* 2 x dst -> dst1(ARGBARGB) */ | |
| 458 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ | |
| 459 | |
| 460 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB) */ | |
| 461 src2 = src1; /* 2 x src -> src2(ARGBARGB) */ | |
| 462 | |
| 463 dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */ | |
| 464 src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */ | |
| 465 src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */ | |
| 466 src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */ | |
| 467 | |
| 468 dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */ | |
| 469 dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */ | |
| 470 dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */ | |
| 471 dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) | dst1 -> dst1 */ | |
| 472 | |
| 473 *(__m64*)dstp = dst1; /* dst1 -> 2 x dst pixels */ | |
| 474 dstp += 2; | |
| 475 srcp += 2; | |
| 476 } | |
| 477 | |
| 478 srcp += srcskip; | |
| 479 dstp += dstskip; | |
| 480 } | |
| 481 _mm_empty(); | |
| 482 } | |
| 483 | |
| 484 /* fast RGB888->(A)RGB888 blending with surface alpha */ | |
| 485 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info) | |
| 486 { | |
| 487 SDL_PixelFormat* df = info->dst; | |
| 488 Uint32 chanmask = df->Rmask | df->Gmask | df->Bmask; | |
| 489 unsigned alpha = info->src->alpha; | |
| 490 | |
| 491 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { | |
| 492 /* only call a128 version when R,G,B occupy lower bits */ | |
| 493 BlitRGBtoRGBSurfaceAlpha128MMX(info); | |
| 494 } else { | |
| 495 int width = info->d_width; | |
| 496 int height = info->d_height; | |
| 497 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 498 int srcskip = info->s_skip >> 2; | |
| 499 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 500 int dstskip = info->d_skip >> 2; | |
| 501 Uint32 dalpha = df->Amask; | |
| 502 Uint32 amult; | |
| 503 | |
| 504 __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta; | |
| 505 | |
| 506 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ | |
| 507 /* form the alpha mult */ | |
| 508 amult = alpha | (alpha << 8); | |
| 509 amult = amult | (amult << 16); | |
| 510 chanmask = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift); | |
| 511 mm_alpha = _mm_set_pi32(0, amult & chanmask); /* 0000AAAA -> mm_alpha, minus 1 chan */ | |
| 512 mm_alpha = _mm_unpacklo_pi8(mm_alpha, mm_zero); /* 0A0A0A0A -> mm_alpha, minus 1 chan */ | |
| 513 /* at this point mm_alpha can be 000A0A0A or 0A0A0A00 or another combo */ | |
| 514 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ | |
| 515 | |
| 516 while (height--) { | |
| 517 int n = width; | |
| 518 if (n & 1) { | |
| 519 /* One Pixel Blend */ | |
| 520 src2 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src2 (0000ARGB)*/ | |
| 521 src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */ | |
| 522 | |
| 523 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ | |
| 524 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ | |
| 525 | |
| 526 src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */ | |
| 527 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 528 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ | |
| 529 dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */ | |
| 530 | |
| 531 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ | |
| 532 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ | |
| 533 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ | |
| 534 | |
| 535 ++srcp; | |
| 536 ++dstp; | |
| 537 | |
| 538 n--; | |
| 539 } | |
| 540 | |
| 541 for (n >>= 1; n > 0; --n) { | |
| 542 /* Two Pixels Blend */ | |
| 543 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB)*/ | |
| 544 src2 = src1; /* 2 x src -> src2(ARGBARGB) */ | |
| 545 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */ | |
| 546 src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */ | |
| 547 | |
| 548 dst1 = *(__m64*)dstp;/* 2 x dst -> dst1(ARGBARGB) */ | |
| 549 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ | |
| 550 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */ | |
| 551 dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */ | |
| 552 | |
| 553 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */ | |
| 554 src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */ | |
| 555 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */ | |
| 556 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */ | |
| 557 | |
| 558 src2 = _mm_sub_pi16(src2, dst2);/* src2 - dst2 -> src2 */ | |
| 559 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 560 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ | |
| 561 dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */ | |
| 562 | |
| 563 dst1 = _mm_packs_pu16(dst1, dst2); /* 0A0R0G0B(res1), 0A0R0G0B(res2) -> dst1(ARGBARGB) */ | |
| 564 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ | |
| 565 | |
| 566 *(__m64*)dstp = dst1; /* dst1 -> 2 x pixel */ | |
| 567 | |
| 568 srcp += 2; | |
| 569 dstp += 2; | |
| 570 } | |
| 571 srcp += srcskip; | |
| 572 dstp += dstskip; | |
| 573 } | |
| 574 _mm_empty(); | |
| 575 } | |
| 576 } | |
| 577 | |
| 578 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ | |
| 579 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info) | |
| 580 { | |
| 581 int width = info->d_width; | |
| 582 int height = info->d_height; | |
| 583 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 584 int srcskip = info->s_skip >> 2; | |
| 585 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 586 int dstskip = info->d_skip >> 2; | |
| 587 SDL_PixelFormat* sf = info->src; | |
| 588 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; | |
| 589 Uint32 amask = sf->Amask; | |
| 590 Uint32 ashift = sf->Ashift; | |
| 591 Uint64 multmask; | |
| 592 | |
| 593 __m64 src1, dst1, mm_alpha, mm_zero, dmask; | |
| 594 | |
| 595 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ | |
| 596 multmask = ~(0xFFFFi64 << (ashift * 2)); | |
| 597 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ | |
| 598 | |
| 599 while(height--) { | |
| 600 DUFFS_LOOP4({ | |
| 601 Uint32 alpha = *srcp & amask; | |
| 602 if (alpha == 0) { | |
| 603 /* do nothing */ | |
| 604 } else if (alpha == amask) { | |
| 605 /* opaque alpha -- copy RGB, keep dst alpha */ | |
| 606 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask); | |
| 607 } else { | |
| 608 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/ | |
| 609 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */ | |
| 610 | |
| 611 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ | |
| 612 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ | |
| 613 | |
| 614 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */ | |
| 615 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */ | |
| 616 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 617 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 618 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */ | |
| 619 | |
| 620 /* blend */ | |
| 621 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */ | |
| 622 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src1 - dst1) * alpha -> src1 */ | |
| 623 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */ | |
| 624 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1 -> dst1(0A0R0G0B) */ | |
| 625 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ | |
| 626 | |
| 627 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ | |
| 628 } | |
| 629 ++srcp; | |
| 630 ++dstp; | |
| 631 }, width); | |
| 632 srcp += srcskip; | |
| 633 dstp += dstskip; | |
| 634 } | |
| 635 _mm_empty(); | |
| 636 } | |
| 637 /* End MSVC_ASMBLIT */ | |
| 638 | |
| 639 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ | |
|
689
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640 |
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641 #if SDL_ALTIVEC_BLITTERS |
| 1795 | 642 #if __MWERKS__ |
| 643 #pragma altivec_model on | |
| 644 #endif | |
|
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645 #if HAVE_ALTIVEC_H |
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646 #include <altivec.h> |
|
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647 #endif |
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648 #include <assert.h> |
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649 |
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650 #if (defined(__MACOSX__) && (__GNUC__ < 4)) |
|
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651 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ |
|
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652 (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p ) |
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653 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ |
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654 (vector unsigned short) ( a,b,c,d,e,f,g,h ) |
|
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655 #else |
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656 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ |
|
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Enable altivec blitters on PowerPC Linux, and some fixes for recent
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657 (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p } |
|
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658 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ |
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659 (vector unsigned short) { a,b,c,d,e,f,g,h } |
|
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660 #endif |
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661 |
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662 #define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F) |
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663 #define VECPRINT(msg, v) do { \ |
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664 vector unsigned int tmpvec = (vector unsigned int)(v); \ |
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665 unsigned int *vp = (unsigned int *)&tmpvec; \ |
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666 printf("%s = %08X %08X %08X %08X\n", msg, vp[0], vp[1], vp[2], vp[3]); \ |
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667 } while (0) |
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668 |
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669 /* the permuation vector that takes the high bytes out of all the appropriate shorts |
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670 (vector unsigned char)( |
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671 0x00, 0x10, 0x02, 0x12, |
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672 0x04, 0x14, 0x06, 0x16, |
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673 0x08, 0x18, 0x0A, 0x1A, |
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674 0x0C, 0x1C, 0x0E, 0x1E ); |
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675 */ |
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676 #define VEC_MERGE_PERMUTE() (vec_add(vec_lvsl(0, (int*)NULL), (vector unsigned char)vec_splat_u16(0x0F))) |
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677 #define VEC_U32_24() (vec_add(vec_splat_u32(12), vec_splat_u32(12))) |
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678 #define VEC_ALPHA_MASK() ((vector unsigned char)vec_sl((vector unsigned int)vec_splat_s8(-1), VEC_U32_24())) |
|
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679 #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \ |
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680 ? vec_lvsl(0, src) \ |
|
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681 : vec_add(vec_lvsl(8, src), vec_splat_u8(8))) |
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|
682 |
|
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|
683 |
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|
684 #define VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1_16, v8_16) do { \ |
|
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685 /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \ |
|
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686 vector unsigned short vtemp1 = vec_mule(vs, valpha); \ |
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687 /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \ |
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688 vector unsigned short vtemp2 = vec_mulo(vs, valpha); \ |
|
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689 /* valpha2 is 255-alpha */ \ |
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690 vector unsigned char valpha2 = vec_nor(valpha, valpha); \ |
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691 /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \ |
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692 vector unsigned short vtemp3 = vec_mule(vd, valpha2); \ |
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693 /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \ |
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694 vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \ |
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695 /* add source and dest */ \ |
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696 vtemp1 = vec_add(vtemp1, vtemp3); \ |
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697 vtemp2 = vec_add(vtemp2, vtemp4); \ |
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698 /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \ |
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699 vtemp1 = vec_add(vtemp1, v1_16); \ |
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700 vtemp3 = vec_sr(vtemp1, v8_16); \ |
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701 vtemp1 = vec_add(vtemp1, vtemp3); \ |
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702 /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \ |
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703 vtemp2 = vec_add(vtemp2, v1_16); \ |
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704 vtemp4 = vec_sr(vtemp2, v8_16); \ |
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705 vtemp2 = vec_add(vtemp2, vtemp4); \ |
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706 /* (>>8) and get ARGBARGBARGBARGB */ \ |
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707 vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \ |
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708 } while (0) |
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709 |
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|
710 /* Calculate the permute vector used for 32->32 swizzling */ |
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|
711 static vector unsigned char calc_swizzle32(const SDL_PixelFormat *srcfmt, |
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712 const SDL_PixelFormat *dstfmt) |
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713 { |
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714 /* |
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715 * We have to assume that the bits that aren't used by other |
|
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716 * colors is alpha, and it's one complete byte, since some formats |
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717 * leave alpha with a zero mask, but we should still swizzle the bits. |
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718 */ |
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719 /* ARGB */ |
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720 const static struct SDL_PixelFormat default_pixel_format = { |
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721 NULL, 0, 0, |
|
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|
722 0, 0, 0, 0, |
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723 16, 8, 0, 24, |
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724 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000, |
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725 0, 0}; |
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726 if (!srcfmt) { |
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727 srcfmt = &default_pixel_format; |
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728 } |
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729 if (!dstfmt) { |
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730 dstfmt = &default_pixel_format; |
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731 } |
|
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732 const vector unsigned char plus = VECUINT8_LITERAL |
|
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733 ( 0x00, 0x00, 0x00, 0x00, |
|
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734 0x04, 0x04, 0x04, 0x04, |
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ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
735 0x08, 0x08, 0x08, 0x08, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
736 0x0C, 0x0C, 0x0C, 0x0C ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
737 vector unsigned char vswiz; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
738 vector unsigned int srcvec; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
739 #define RESHIFT(X) (3 - ((X) >> 3)) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
740 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
741 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
742 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
743 Uint32 amask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
744 /* Use zero for alpha if either surface doesn't have alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
745 if (dstfmt->Amask) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
746 amask = ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->Ashift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
747 } else { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
748 amask = 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ 0xFFFFFFFF); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
749 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
750 #undef RESHIFT |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
751 ((unsigned int *)(char*)&srcvec)[0] = (rmask | gmask | bmask | amask); |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
752 vswiz = vec_add(plus, (vector unsigned char)vec_splat(srcvec, 0)); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
753 return(vswiz); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
754 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
755 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
756 static void Blit32to565PixelAlphaAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
757 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
758 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
759 Uint8 *src = (Uint8 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
760 int srcskip = info->s_skip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
761 Uint8 *dst = (Uint8 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
762 int dstskip = info->d_skip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
763 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
764 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
765 vector unsigned char v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
766 vector unsigned short v8_16 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
767 vector unsigned short v1_16 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
768 vector unsigned short v2_16 = vec_splat_u16(2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
769 vector unsigned short v3_16 = vec_splat_u16(3); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
770 vector unsigned int v8_32 = vec_splat_u32(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
771 vector unsigned int v16_32 = vec_add(v8_32, v8_32); |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
772 vector unsigned short v3f = VECUINT16_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
773 0x003f, 0x003f, 0x003f, 0x003f, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
774 0x003f, 0x003f, 0x003f, 0x003f); |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
775 vector unsigned short vfc = VECUINT16_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
776 0x00fc, 0x00fc, 0x00fc, 0x00fc, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
777 0x00fc, 0x00fc, 0x00fc, 0x00fc); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
778 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
779 /* |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
780 0x10 - 0x1f is the alpha |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
781 0x00 - 0x0e evens are the red |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
782 0x01 - 0x0f odds are zero |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
783 */ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
784 vector unsigned char vredalpha1 = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
785 0x10, 0x00, 0x01, 0x01, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
786 0x10, 0x02, 0x01, 0x01, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
787 0x10, 0x04, 0x01, 0x01, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
788 0x10, 0x06, 0x01, 0x01 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
789 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
790 vector unsigned char vredalpha2 = (vector unsigned char)( |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
791 vec_add((vector unsigned int)vredalpha1, vec_sl(v8_32, v16_32)) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
792 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
793 /* |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
794 0x00 - 0x0f is ARxx ARxx ARxx ARxx |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
795 0x11 - 0x0f odds are blue |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
796 */ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
797 vector unsigned char vblue1 = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
798 0x00, 0x01, 0x02, 0x11, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
799 0x04, 0x05, 0x06, 0x13, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
800 0x08, 0x09, 0x0a, 0x15, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
801 0x0c, 0x0d, 0x0e, 0x17 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
802 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
803 vector unsigned char vblue2 = (vector unsigned char)( |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
804 vec_add((vector unsigned int)vblue1, v8_32) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
805 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
806 /* |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
807 0x00 - 0x0f is ARxB ARxB ARxB ARxB |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
808 0x10 - 0x0e evens are green |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
809 */ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
810 vector unsigned char vgreen1 = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
811 0x00, 0x01, 0x10, 0x03, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
812 0x04, 0x05, 0x12, 0x07, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
813 0x08, 0x09, 0x14, 0x0b, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
814 0x0c, 0x0d, 0x16, 0x0f |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
815 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
816 vector unsigned char vgreen2 = (vector unsigned char)( |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
817 vec_add((vector unsigned int)vgreen1, vec_sl(v8_32, v8_32)) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
818 ); |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
819 vector unsigned char vgmerge = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
820 0x00, 0x02, 0x00, 0x06, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
821 0x00, 0x0a, 0x00, 0x0e, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
822 0x00, 0x12, 0x00, 0x16, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
823 0x00, 0x1a, 0x00, 0x1e); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
824 vector unsigned char mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
825 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
826 vector unsigned char valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC)); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
827 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
828 vector unsigned short vf800 = (vector unsigned short)vec_splat_u8(-7); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
829 vf800 = vec_sl(vf800, vec_splat_u16(8)); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
830 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
831 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
832 int extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
833 vector unsigned char valigner; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
834 vector unsigned char vsrc; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
835 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
836 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
837 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
838 #define ONE_PIXEL_BLEND(condition, widthvar) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
839 while (condition) { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
840 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
841 unsigned sR, sG, sB, dR, dG, dB, sA; \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
842 DISEMBLE_RGBA(src, 4, srcfmt, Pixel, sR, sG, sB, sA); \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
843 if(sA) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
844 unsigned short dstpixel = *((unsigned short *)dst); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
845 dR = (dstpixel >> 8) & 0xf8; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
846 dG = (dstpixel >> 3) & 0xfc; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
847 dB = (dstpixel << 3) & 0xf8; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
848 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
849 *((unsigned short *)dst) = ( \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
850 ((dR & 0xf8) << 8) | ((dG & 0xfc) << 3) | (dB >> 3) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
851 ); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
852 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
853 src += 4; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
854 dst += 2; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
855 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
856 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
857 ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
858 extrawidth = (width % 8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
859 valigner = VEC_ALIGNER(src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
860 vsrc = (vector unsigned char)vec_ld(0, src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
861 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
862 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
863 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
864 vector unsigned char vsrc1, vsrc2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
865 vector unsigned char vdst1, vdst2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
866 vector unsigned short vR, vG, vB; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
867 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
868 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
869 /* Load 8 pixels from src as ARGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
870 voverflow = (vector unsigned char)vec_ld(15, src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
871 vsrc = vec_perm(vsrc, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
872 vsrc1 = vec_perm(vsrc, vsrc, vpermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
873 src += 16; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
874 vsrc = (vector unsigned char)vec_ld(15, src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
875 voverflow = vec_perm(voverflow, vsrc, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
876 vsrc2 = vec_perm(voverflow, voverflow, vpermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
877 src += 16; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
878 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
879 /* Load 8 pixels from dst as XRGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
880 voverflow = vec_ld(0, dst); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
881 vR = vec_and((vector unsigned short)voverflow, vf800); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
882 vB = vec_sl((vector unsigned short)voverflow, v3_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
883 vG = vec_sl(vB, v2_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
884 vdst1 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
885 vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
886 vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
887 vdst2 = (vector unsigned char)vec_perm((vector unsigned char)vR, (vector unsigned char)vR, vredalpha2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
888 vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
889 vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
890 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
891 /* Alpha blend 8 pixels as ARGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
892 valpha = vec_perm(vsrc1, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
893 VEC_MULTIPLY_ALPHA(vsrc1, vdst1, valpha, mergePermute, v1_16, v8_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
894 valpha = vec_perm(vsrc2, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
895 VEC_MULTIPLY_ALPHA(vsrc2, vdst2, valpha, mergePermute, v1_16, v8_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
896 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
897 /* Convert 8 pixels to 565 */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
898 vpixel = (vector unsigned short)vec_packpx((vector unsigned int)vdst1, (vector unsigned int)vdst2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
899 vgpixel = (vector unsigned short)vec_perm(vdst1, vdst2, vgmerge); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
900 vgpixel = vec_and(vgpixel, vfc); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
901 vgpixel = vec_sl(vgpixel, v3_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
902 vrpixel = vec_sl(vpixel, v1_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
903 vrpixel = vec_and(vrpixel, vf800); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
904 vbpixel = vec_and(vpixel, v3f); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
905 vdst1 = vec_or((vector unsigned char)vrpixel, (vector unsigned char)vgpixel); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
906 vdst1 = vec_or(vdst1, (vector unsigned char)vbpixel); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
907 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
908 /* Store 8 pixels */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
909 vec_st(vdst1, 0, dst); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
910 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
911 width -= 8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
912 dst += 16; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
913 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
914 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
915 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
916 src += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
917 dst += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
918 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
919 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
920 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
921 static void Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
922 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
923 unsigned alpha = info->src->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
924 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
925 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
926 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
927 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
928 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
929 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
930 SDL_PixelFormat *dstfmt = info->dst; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
931 unsigned sA = srcfmt->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
932 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
933 Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
934 Uint32 ckey = info->src->colorkey; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
935 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
936 vector unsigned char vsrcPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
937 vector unsigned char vdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
938 vector unsigned char vsdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
939 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
940 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
941 vector unsigned char vbits; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
942 vector unsigned char v0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
943 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
944 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
945 vector unsigned int vckey; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
946 vector unsigned int vrgbmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
947 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
948 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
949 v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
950 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
951 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
952 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
953 /* set the alpha to 255 on the destination surf */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
954 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
955 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
956 vsrcPermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
957 vdstPermute = calc_swizzle32(NULL, dstfmt); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
958 vsdstPermute = calc_swizzle32(dstfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
959 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
960 /* set a vector full of alpha and 255-alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
961 ((unsigned char *)&valpha)[0] = alpha; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
962 valpha = vec_splat(valpha, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
963 vbits = (vector unsigned char)vec_splat_s8(-1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
964 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
965 ckey &= rgbmask; |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
966 ((unsigned int *)(char*)&vckey)[0] = ckey; |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
967 vckey = vec_splat(vckey, 0); |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
968 ((unsigned int *)(char*)&vrgbmask)[0] = rgbmask; |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
969 vrgbmask = vec_splat(vrgbmask, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
970 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
971 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
972 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
973 #define ONE_PIXEL_BLEND(condition, widthvar) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
974 while (condition) { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
975 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
976 unsigned sR, sG, sB, dR, dG, dB; \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
977 RETRIEVE_RGB_PIXEL(((Uint8 *)srcp), 4, Pixel); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
978 if(sA && Pixel != ckey) { \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
979 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
980 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
981 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
982 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
983 } \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
984 dstp++; \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
985 srcp++; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
986 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
987 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
988 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
989 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
990 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
991 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
992 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
993 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
994 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
995 vector unsigned char vsel; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
996 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
997 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
998 vector unsigned char vd_orig; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
999 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1000 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1001 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1002 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1003 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1004 /* vsel is set for items that match the key */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1005 vsel = (vector unsigned char)vec_and((vector unsigned int)vs, vrgbmask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1006 vsel = (vector unsigned char)vec_cmpeq((vector unsigned int)vsel, vckey); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1007 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1008 /* permute to source format */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1009 vs = vec_perm(vs, valpha, vsrcPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1010 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1011 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1012 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1013 vd_orig = vd = vec_perm(vd, v0, vsdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1014 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1015 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1016 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1017 /* set the alpha channel to full on */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1018 vd = vec_or(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1019 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1020 /* mask out color key */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1021 vd = vec_sel(vd, vd_orig, vsel); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1022 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1023 /* permute to dest format */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1024 vd = vec_perm(vd, vbits, vdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1025 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1026 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1027 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1028 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1029 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1030 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1031 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1032 vs = voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1033 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1034 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1035 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1036 #undef ONE_PIXEL_BLEND |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1037 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1038 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1039 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1040 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1041 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1042 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1043 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1044 static void Blit32to32PixelAlphaAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1045 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1046 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1047 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1048 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1049 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1050 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1051 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1052 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1053 SDL_PixelFormat *dstfmt = info->dst; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1054 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1055 vector unsigned char valphaPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1056 vector unsigned char vsrcPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1057 vector unsigned char vdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1058 vector unsigned char vsdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1059 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1060 vector unsigned char vpixelmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1061 vector unsigned char v0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1062 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1063 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1064 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1065 v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1066 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1067 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1068 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1069 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1070 valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC)); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1071 vpixelmask = vec_nor(valphamask, v0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1072 vsrcPermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1073 vdstPermute = calc_swizzle32(NULL, dstfmt); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1074 vsdstPermute = calc_swizzle32(dstfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1075 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1076 while ( height-- ) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1077 width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1078 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
1079 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1080 unsigned sR, sG, sB, dR, dG, dB, sA, dA; \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
1081 DISEMBLE_RGBA((Uint8 *)srcp, 4, srcfmt, Pixel, sR, sG, sB, sA); \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1082 if(sA) { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
1083 DISEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, Pixel, dR, dG, dB, dA); \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1084 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1085 ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1086 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1087 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1088 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1089 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1090 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1091 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1092 if (width > 0) { |
|
1487
dc6b59e925a2
Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents:
1456
diff
changeset
|
1093 /* vsrcPermute */ |
|
dc6b59e925a2
Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents:
1456
diff
changeset
|
1094 /* vdstPermute */ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1095 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1096 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1097 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1098 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1099 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1100 vector unsigned char voverflow; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1101 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1102 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1103 vector unsigned char vdstalpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1104 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1105 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1106 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1107 vs = vec_perm(vs, v0, vsrcPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1108 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1109 valpha = vec_perm(vs, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1110 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1111 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1112 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1113 vd = vec_perm(vd, v0, vsdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1114 vdstalpha = vec_and(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1115 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1116 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1117 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1118 /* set the alpha to the dest alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1119 vd = vec_and(vd, vpixelmask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1120 vd = vec_or(vd, vdstalpha); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1121 vd = vec_perm(vd, v0, vdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1122 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1123 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1124 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1125 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1126 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1127 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1128 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1129 vs = voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1130 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1131 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1132 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1133 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1134 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1135 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1136 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1137 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1138 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1139 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1140 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1141 static void BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1142 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1143 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1144 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1145 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1146 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1147 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1148 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1149 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1150 vector unsigned char valphaPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1151 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1152 vector unsigned char vpixelmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1153 vector unsigned char v0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1154 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1155 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1156 v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1157 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1158 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1159 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1160 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1161 valphaPermute = vec_and(vec_lvsl(0, (int *)NULL), vec_splat_u8(0xC)); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1162 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1163 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1164 vpixelmask = vec_nor(valphamask, v0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1165 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1166 width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1167 #define ONE_PIXEL_BLEND(condition, widthvar) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1168 while ((condition)) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1169 Uint32 dalpha; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1170 Uint32 d; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1171 Uint32 s1; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1172 Uint32 d1; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1173 Uint32 s = *srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1174 Uint32 alpha = s >> 24; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1175 if(alpha) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1176 if(alpha == SDL_ALPHA_OPAQUE) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1177 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1178 } else { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1179 d = *dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1180 dalpha = d & 0xff000000; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1181 s1 = s & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1182 d1 = d & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1183 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1184 s &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1185 d &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1186 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1187 *dstp = d1 | d | dalpha; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1188 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1189 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1190 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1191 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1192 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1193 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1194 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1195 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1196 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1197 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1198 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1199 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1200 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1201 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1202 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1203 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1204 vector unsigned char vdstalpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1205 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1206 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1207 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1208 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1209 valpha = vec_perm(vs, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1210 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1211 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1212 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1213 vdstalpha = vec_and(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1214 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1215 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1216 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1217 /* set the alpha to the dest alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1218 vd = vec_and(vd, vpixelmask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1219 vd = vec_or(vd, vdstalpha); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1220 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1221 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1222 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1223 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1224 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1225 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1226 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1227 vs = voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1228 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1229 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1230 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1231 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1232 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1233 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1234 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1235 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1236 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1237 static void Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1238 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1239 /* XXX : 6 */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1240 unsigned alpha = info->src->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1241 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1242 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1243 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1244 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1245 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1246 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1247 SDL_PixelFormat *dstfmt = info->dst; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1248 unsigned sA = srcfmt->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1249 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1250 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1251 vector unsigned char vsrcPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1252 vector unsigned char vdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1253 vector unsigned char vsdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1254 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1255 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1256 vector unsigned char vbits; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1257 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1258 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1259 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1260 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1261 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1262 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1263 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1264 /* set the alpha to 255 on the destination surf */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1265 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1266 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1267 vsrcPermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1268 vdstPermute = calc_swizzle32(NULL, dstfmt); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1269 vsdstPermute = calc_swizzle32(dstfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1270 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1271 /* set a vector full of alpha and 255-alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1272 ((unsigned char *)&valpha)[0] = alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1273 valpha = vec_splat(valpha, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1274 vbits = (vector unsigned char)vec_splat_s8(-1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1275 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1276 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1277 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1278 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
1279 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1280 unsigned sR, sG, sB, dR, dG, dB; \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
1281 DISEMBLE_RGB(((Uint8 *)srcp), 4, srcfmt, Pixel, sR, sG, sB); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
1282 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1283 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1284 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1285 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1286 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1287 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1288 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1289 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1290 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1291 int extrawidth = (width % 4); |
|
3910
af4d584e0edb
Handle source data alignment correctly in Blit32to32SurfaceAlphaAltivec().
Ryan C. Gordon <icculus@icculus.org>
parents:
3899
diff
changeset
|
1292 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1293 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1294 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1295 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1296 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1297 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1298 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1299 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1300 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1301 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1302 vs = vec_perm(vs, valpha, vsrcPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1303 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1304 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1305 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1306 vd = vec_perm(vd, vd, vsdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1307 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1308 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1309 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1310 /* set the alpha channel to full on */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1311 vd = vec_or(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1312 vd = vec_perm(vd, vbits, vdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1313 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1314 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1315 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1316 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1317 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1318 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1319 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1320 vs = voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1321 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1322 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1323 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1324 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1325 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1326 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1327 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1328 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1329 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1330 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1331 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1332 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1333 /* fast RGB888->(A)RGB888 blending */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1334 static void BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1335 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1336 unsigned alpha = info->src->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1337 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1338 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1339 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1340 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1341 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1342 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1343 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1344 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1345 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1346 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1347 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1348 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1349 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1350 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1351 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1352 /* set the alpha to 255 on the destination surf */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1353 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1354 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1355 /* set a vector full of alpha and 255-alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1356 ((unsigned char *)&valpha)[0] = alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1357 valpha = vec_splat(valpha, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1358 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1359 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1360 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1361 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1362 Uint32 s = *srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1363 Uint32 d = *dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1364 Uint32 s1 = s & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1365 Uint32 d1 = d & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1366 d1 = (d1 + ((s1 - d1) * alpha >> 8)) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1367 & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1368 s &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1369 d &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1370 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1371 *dstp = d1 | d | 0xff000000; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1372 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1373 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1374 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1375 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1376 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1377 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1378 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1379 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1380 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1381 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1382 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1383 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1384 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1385 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1386 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1387 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1388 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1389 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1390 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1391 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1392 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1393 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1394 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1395 /* set the alpha channel to full on */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1396 vd = vec_or(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1397 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1398 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1399 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1400 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1401 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1402 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1403 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1404 vs = voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1405 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1406 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1407 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1408 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1409 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1410 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1411 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1412 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1413 } |
| 1795 | 1414 #if __MWERKS__ |
| 1415 #pragma altivec_model off | |
| 1416 #endif | |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
1417 #endif /* SDL_ALTIVEC_BLITTERS */ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1418 |
|
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
1419 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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1420 static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo *info) |
| 0 | 1421 { |
| 1422 int width = info->d_width; | |
| 1423 int height = info->d_height; | |
| 1424 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 1425 int srcskip = info->s_skip >> 2; | |
| 1426 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 1427 int dstskip = info->d_skip >> 2; | |
| 1428 | |
| 1429 while(height--) { | |
| 1430 DUFFS_LOOP4({ | |
|
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1431 Uint32 s = *srcp++; |
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1432 Uint32 d = *dstp; |
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1433 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) |
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1434 + (s & d & 0x00010101)) | 0xff000000; |
| 0 | 1435 }, width); |
| 1436 srcp += srcskip; | |
| 1437 dstp += dstskip; | |
| 1438 } | |
| 1439 } | |
| 1440 | |
|
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1441 /* fast RGB888->(A)RGB888 blending with surface alpha */ |
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1442 static void BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo *info) |
|
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1443 { |
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1444 unsigned alpha = info->src->alpha; |
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1445 if(alpha == 128) { |
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1446 BlitRGBtoRGBSurfaceAlpha128(info); |
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1447 } else { |
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1448 int width = info->d_width; |
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1449 int height = info->d_height; |
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1450 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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1451 int srcskip = info->s_skip >> 2; |
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1452 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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1453 int dstskip = info->d_skip >> 2; |
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1454 Uint32 s; |
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1455 Uint32 d; |
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1456 Uint32 s1; |
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1457 Uint32 d1; |
|
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1458 |
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1459 while(height--) { |
|
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1460 DUFFS_LOOP_DOUBLE2({ |
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1461 /* One Pixel Blend */ |
|
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1462 s = *srcp; |
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1463 d = *dstp; |
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1464 s1 = s & 0xff00ff; |
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1465 d1 = d & 0xff00ff; |
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1466 d1 = (d1 + ((s1 - d1) * alpha >> 8)) |
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1467 & 0xff00ff; |
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1468 s &= 0xff00; |
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1469 d &= 0xff00; |
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1470 d = (d + ((s - d) * alpha >> 8)) & 0xff00; |
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1471 *dstp = d1 | d | 0xff000000; |
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1472 ++srcp; |
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1473 ++dstp; |
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1474 },{ |
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1475 /* Two Pixels Blend */ |
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1476 s = *srcp; |
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1477 d = *dstp; |
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1478 s1 = s & 0xff00ff; |
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1479 d1 = d & 0xff00ff; |
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1480 d1 += (s1 - d1) * alpha >> 8; |
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1481 d1 &= 0xff00ff; |
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1482 |
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1483 s = ((s & 0xff00) >> 8) | |
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1484 ((srcp[1] & 0xff00) << 8); |
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1485 d = ((d & 0xff00) >> 8) | |
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1486 ((dstp[1] & 0xff00) << 8); |
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1487 d += (s - d) * alpha >> 8; |
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1488 d &= 0x00ff00ff; |
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1489 |
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1490 *dstp++ = d1 | ((d << 8) & 0xff00) | 0xff000000; |
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1491 ++srcp; |
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1492 |
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1493 s1 = *srcp; |
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1494 d1 = *dstp; |
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1495 s1 &= 0xff00ff; |
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1496 d1 &= 0xff00ff; |
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1497 d1 += (s1 - d1) * alpha >> 8; |
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1498 d1 &= 0xff00ff; |
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1499 |
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1500 *dstp = d1 | ((d >> 8) & 0xff00) | 0xff000000; |
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1501 ++srcp; |
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1502 ++dstp; |
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1503 }, width); |
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1504 srcp += srcskip; |
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1505 dstp += dstskip; |
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1506 } |
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1507 } |
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1508 } |
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1509 |
| 0 | 1510 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
| 1511 static void BlitRGBtoRGBPixelAlpha(SDL_BlitInfo *info) | |
| 1512 { | |
| 1513 int width = info->d_width; | |
| 1514 int height = info->d_height; | |
| 1515 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 1516 int srcskip = info->s_skip >> 2; | |
| 1517 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 1518 int dstskip = info->d_skip >> 2; | |
| 1519 | |
| 1520 while(height--) { | |
| 1521 DUFFS_LOOP4({ | |
| 1522 Uint32 dalpha; | |
| 1523 Uint32 d; | |
| 1524 Uint32 s1; | |
| 1525 Uint32 d1; | |
| 1526 Uint32 s = *srcp; | |
| 1527 Uint32 alpha = s >> 24; | |
| 1528 /* FIXME: Here we special-case opaque alpha since the | |
| 1529 compositioning used (>>8 instead of /255) doesn't handle | |
| 1530 it correctly. Also special-case alpha=0 for speed? | |
| 1531 Benchmark this! */ | |
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1532 if(alpha) { |
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1533 if(alpha == SDL_ALPHA_OPAQUE) { |
| 0 | 1534 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); |
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1535 } else { |
| 0 | 1536 /* |
| 1537 * take out the middle component (green), and process | |
| 1538 * the other two in parallel. One multiply less. | |
| 1539 */ | |
| 1540 d = *dstp; | |
| 1541 dalpha = d & 0xff000000; | |
| 1542 s1 = s & 0xff00ff; | |
| 1543 d1 = d & 0xff00ff; | |
| 1544 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; | |
| 1545 s &= 0xff00; | |
| 1546 d &= 0xff00; | |
| 1547 d = (d + ((s - d) * alpha >> 8)) & 0xff00; | |
| 1548 *dstp = d1 | d | dalpha; | |
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1549 } |
| 0 | 1550 } |
| 1551 ++srcp; | |
| 1552 ++dstp; | |
| 1553 }, width); | |
| 1554 srcp += srcskip; | |
| 1555 dstp += dstskip; | |
| 1556 } | |
| 1557 } | |
| 1558 | |
| 1542 | 1559 #if GCC_ASMBLIT |
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1560 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ |
| 3870 | 1561 static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) |
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1562 { |
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1563 int width = info->d_width; |
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1564 int height = info->d_height; |
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1565 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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1566 int srcskip = info->s_skip >> 2; |
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1567 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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1568 int dstskip = info->d_skip >> 2; |
| 1542 | 1569 SDL_PixelFormat* sf = info->src; |
| 1570 Uint32 amask = sf->Amask; | |
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1571 |
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1572 __asm__ ( |
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1573 /* make mm6 all zeros. */ |
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1574 "pxor %%mm6, %%mm6\n" |
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1575 |
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1576 /* Make a mask to preserve the alpha. */ |
| 1542 | 1577 "movd %0, %%mm7\n\t" /* 0000F000 -> mm7 */ |
| 1578 "punpcklbw %%mm7, %%mm7\n\t" /* FF000000 -> mm7 */ | |
| 1579 "pcmpeqb %%mm4, %%mm4\n\t" /* FFFFFFFF -> mm4 */ | |
| 1580 "movq %%mm4, %%mm3\n\t" /* FFFFFFFF -> mm3 (for later) */ | |
| 1581 "pxor %%mm4, %%mm7\n\t" /* 00FFFFFF -> mm7 (mult mask) */ | |
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1582 |
| 1542 | 1583 /* form channel masks */ |
| 1584 "movq %%mm7, %%mm4\n\t" /* 00FFFFFF -> mm4 */ | |
| 1585 "packsswb %%mm6, %%mm4\n\t" /* 00000FFF -> mm4 (channel mask) */ | |
| 1586 "packsswb %%mm6, %%mm3\n\t" /* 0000FFFF -> mm3 */ | |
| 1587 "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */ | |
| 1588 | |
| 1589 /* get alpha channel shift */ | |
| 1590 "movd %1, %%mm5\n\t" /* Ashift -> mm5 */ | |
| 1591 | |
|
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1592 : /* nothing */ : "rm" (amask), "rm" ((Uint32) sf->Ashift) ); |
|
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1593 |
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1594 while(height--) { |
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1595 |
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1596 DUFFS_LOOP4({ |
| 1542 | 1597 Uint32 alpha; |
|
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1598 |
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1599 __asm__ ( |
|
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1600 "prefetch 64(%0)\n" |
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1601 "prefetch 64(%1)\n" |
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1602 : : "r" (srcp), "r" (dstp) ); |
|
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1603 |
| 1542 | 1604 alpha = *srcp & amask; |
|
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1605 /* FIXME: Here we special-case opaque alpha since the |
|
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1606 compositioning used (>>8 instead of /255) doesn't handle |
|
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1607 it correctly. Also special-case alpha=0 for speed? |
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|
1608 Benchmark this! */ |
| 1542 | 1609 if(alpha == 0) { |
| 1610 /* do nothing */ | |
| 1611 } | |
| 1612 else if(alpha == amask) { | |
| 1613 /* opaque alpha -- copy RGB, keep dst alpha */ | |
| 1614 /* using MMX here to free up regular registers for other things */ | |
| 1615 __asm__ ( | |
| 1616 "movd (%0), %%mm0\n\t" /* src(ARGB) -> mm0 (0000ARGB)*/ | |
| 1617 "movd (%1), %%mm1\n\t" /* dst(ARGB) -> mm1 (0000ARGB)*/ | |
| 1618 "pand %%mm4, %%mm0\n\t" /* src & chanmask -> mm0 */ | |
| 1619 "pand %%mm3, %%mm1\n\t" /* dst & ~chanmask -> mm2 */ | |
| 1620 "por %%mm0, %%mm1\n\t" /* src | dst -> mm1 */ | |
| 1621 "movd %%mm1, (%1) \n\t" /* mm1 -> dst */ | |
| 1622 | |
| 1623 : : "r" (srcp), "r" (dstp) ); | |
|
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1624 } |
|
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1625 |
|
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1626 else { |
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1627 __asm__ ( |
|
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1628 /* load in the source, and dst. */ |
|
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1629 "movd (%0), %%mm0\n" /* mm0(s) = 0 0 0 0 | As Rs Gs Bs */ |
|
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1630 "movd (%1), %%mm1\n" /* mm1(d) = 0 0 0 0 | Ad Rd Gd Bd */ |
|
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1631 |
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1632 /* Move the src alpha into mm2 */ |
|
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1633 |
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1634 /* if supporting pshufw */ |
|
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1635 /*"pshufw $0x55, %%mm0, %%mm2\n" */ /* mm2 = 0 As 0 As | 0 As 0 As */ |
|
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1636 /*"psrlw $8, %%mm2\n" */ |
|
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1637 |
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|
1638 /* else: */ |
| 1542 | 1639 "movd %2, %%mm2\n" |
| 1640 "psrld %%mm5, %%mm2\n" /* mm2 = 0 0 0 0 | 0 0 0 As */ | |
|
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1641 "punpcklwd %%mm2, %%mm2\n" /* mm2 = 0 0 0 0 | 0 As 0 As */ |
|
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1642 "punpckldq %%mm2, %%mm2\n" /* mm2 = 0 As 0 As | 0 As 0 As */ |
| 1542 | 1643 "pand %%mm7, %%mm2\n" /* to preserve dest alpha */ |
|
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1644 |
|
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|
1645 /* move the colors into words. */ |
|
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1646 "punpcklbw %%mm6, %%mm0\n" /* mm0 = 0 As 0 Rs | 0 Gs 0 Bs */ |
|
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|
1647 "punpcklbw %%mm6, %%mm1\n" /* mm0 = 0 Ad 0 Rd | 0 Gd 0 Bd */ |
|
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1648 |
|
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|
1649 /* src - dst */ |
|
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1650 "psubw %%mm1, %%mm0\n" /* mm0 = As-Ad Rs-Rd | Gs-Gd Bs-Bd */ |
|
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|
1651 |
|
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|
1652 /* A * (src-dst) */ |
| 1542 | 1653 "pmullw %%mm2, %%mm0\n" /* mm0 = 0*As-d As*Rs-d | As*Gs-d As*Bs-d */ |
| 1654 "psrlw $8, %%mm0\n" /* mm0 = 0>>8 Rc>>8 | Gc>>8 Bc>>8 */ | |
| 1655 "paddb %%mm1, %%mm0\n" /* mm0 = 0+Ad Rc+Rd | Gc+Gd Bc+Bd */ | |
|
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1656 |
|
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|
1657 "packuswb %%mm0, %%mm0\n" /* mm0 = | Ac Rc Gc Bc */ |
|
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1658 |
|
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1659 "movd %%mm0, (%1)\n" /* result in mm0 */ |
|
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|
1660 |
| 1542 | 1661 : : "r" (srcp), "r" (dstp), "r" (alpha) ); |
|
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1662 |
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1663 } |
|
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|
1664 ++srcp; |
|
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1665 ++dstp; |
|
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1666 }, width); |
|
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1667 srcp += srcskip; |
|
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1668 dstp += dstskip; |
|
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1669 } |
|
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1670 |
|
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1671 __asm__ ( |
|
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|
1672 "emms\n" |
|
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|
1673 : ); |
|
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|
1674 } |
| 1542 | 1675 /* End GCC_ASMBLIT*/ |
| 1676 | |
| 1677 #elif MSVC_ASMBLIT | |
| 1678 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ | |
| 1679 static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) | |
| 1680 { | |
| 1681 int width = info->d_width; | |
| 1682 int height = info->d_height; | |
| 1683 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 1684 int srcskip = info->s_skip >> 2; | |
| 1685 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 1686 int dstskip = info->d_skip >> 2; | |
| 1687 SDL_PixelFormat* sf = info->src; | |
| 1688 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; | |
| 1689 Uint32 amask = sf->Amask; | |
| 1690 Uint32 ashift = sf->Ashift; | |
| 1691 Uint64 multmask; | |
| 1692 | |
| 1693 __m64 src1, dst1, mm_alpha, mm_zero, dmask; | |
| 1694 | |
| 1695 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ | |
| 1696 multmask = ~(0xFFFFi64 << (ashift * 2)); | |
| 1697 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ | |
| 1698 | |
| 1699 while(height--) { | |
| 1700 DUFFS_LOOP4({ | |
| 1701 Uint32 alpha; | |
| 1702 | |
| 1703 _m_prefetch(srcp + 16); | |
| 1704 _m_prefetch(dstp + 16); | |
| 1705 | |
| 1706 alpha = *srcp & amask; | |
| 1707 if (alpha == 0) { | |
| 1708 /* do nothing */ | |
| 1709 } else if (alpha == amask) { | |
| 1710 /* copy RGB, keep dst alpha */ | |
| 1711 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask); | |
| 1712 } else { | |
| 1713 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/ | |
| 1714 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */ | |
| 1715 | |
| 1716 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ | |
| 1717 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ | |
| 1718 | |
| 1719 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */ | |
| 1720 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */ | |
| 1721 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 1722 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 1723 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */ | |
| 1724 | |
| 1725 /* blend */ | |
| 1726 src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */ | |
| 1727 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */ | |
| 1728 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */ | |
| 1729 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */ | |
| 1730 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ | |
| 1731 | |
| 1732 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ | |
| 1733 } | |
| 1734 ++srcp; | |
| 1735 ++dstp; | |
| 1736 }, width); | |
| 1737 srcp += srcskip; | |
| 1738 dstp += dstskip; | |
| 1739 } | |
| 1740 _mm_empty(); | |
| 1741 } | |
| 1742 /* End MSVC_ASMBLIT */ | |
| 1743 | |
| 1744 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ | |
|
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1745 |
|
1
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|
1746 /* 16bpp special case for per-surface alpha=50%: blend 2 pixels in parallel */ |
|
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|
1747 |
|
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|
1748 /* blend a single 16 bit pixel at 50% */ |
|
cf2af46e9e2a
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|
1749 #define BLEND16_50(d, s, mask) \ |
|
cf2af46e9e2a
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|
1750 ((((s & mask) + (d & mask)) >> 1) + (s & d & (~mask & 0xffff))) |
|
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|
1751 |
|
cf2af46e9e2a
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|
1752 /* blend two 16 bit pixels at 50% */ |
|
cf2af46e9e2a
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|
1753 #define BLEND2x16_50(d, s, mask) \ |
|
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|
1754 (((s & (mask | mask << 16)) >> 1) + ((d & (mask | mask << 16)) >> 1) \ |
|
cf2af46e9e2a
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|
1755 + (s & d & (~(mask | mask << 16)))) |
|
cf2af46e9e2a
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1756 |
|
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|
1757 static void Blit16to16SurfaceAlpha128(SDL_BlitInfo *info, Uint16 mask) |
| 0 | 1758 { |
| 1759 int width = info->d_width; | |
| 1760 int height = info->d_height; | |
| 1761 Uint16 *srcp = (Uint16 *)info->s_pixels; | |
| 1762 int srcskip = info->s_skip >> 1; | |
| 1763 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 1764 int dstskip = info->d_skip >> 1; | |
| 1765 | |
| 1766 while(height--) { | |
|
1456
84de7511f79f
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|
1767 if(((uintptr_t)srcp ^ (uintptr_t)dstp) & 2) { |
|
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|
1768 /* |
|
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|
1769 * Source and destination not aligned, pipeline it. |
|
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|
1770 * This is mostly a win for big blits but no loss for |
|
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|
1771 * small ones |
|
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|
1772 */ |
|
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|
1773 Uint32 prev_sw; |
|
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|
1774 int w = width; |
|
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|
1775 |
|
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Changes since SDL 1.2.0 release
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|
1776 /* handle odd destination */ |
|
1456
84de7511f79f
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1443
diff
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|
1777 if((uintptr_t)dstp & 2) { |
|
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|
1778 Uint16 d = *dstp, s = *srcp; |
|
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|
1779 *dstp = BLEND16_50(d, s, mask); |
|
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|
1780 dstp++; |
|
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diff
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|
1781 srcp++; |
|
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|
1782 w--; |
|
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|
1783 } |
|
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diff
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|
1784 srcp++; /* srcp is now 32-bit aligned */ |
|
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|
1785 |
|
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changeset
|
1786 /* bootstrap pipeline with first halfword */ |
|
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Changes since SDL 1.2.0 release
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|
1787 prev_sw = ((Uint32 *)srcp)[-1]; |
|
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|
1788 |
|
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|
1789 while(w > 1) { |
|
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changeset
|
1790 Uint32 sw, dw, s; |
|
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changeset
|
1791 sw = *(Uint32 *)srcp; |
|
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|
1792 dw = *(Uint32 *)dstp; |
|
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|
1793 #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
|
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|
1794 s = (prev_sw << 16) + (sw >> 16); |
|
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diff
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|
1795 #else |
|
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diff
changeset
|
1796 s = (prev_sw >> 16) + (sw << 16); |
|
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|
1797 #endif |
|
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|
1798 prev_sw = sw; |
|
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|
1799 *(Uint32 *)dstp = BLEND2x16_50(dw, s, mask); |
|
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|
1800 dstp += 2; |
|
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changeset
|
1801 srcp += 2; |
|
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|
1802 w -= 2; |
|
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|
1803 } |
|
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|
1804 |
|
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|
1805 /* final pixel if any */ |
|
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|
1806 if(w) { |
|
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|
1807 Uint16 d = *dstp, s; |
|
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|
1808 #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
|
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|
1809 s = (Uint16)prev_sw; |
|
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|
1810 #else |
|
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|
1811 s = (Uint16)(prev_sw >> 16); |
|
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|
1812 #endif |
|
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|
1813 *dstp = BLEND16_50(d, s, mask); |
|
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|
1814 srcp++; |
|
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|
1815 dstp++; |
|
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|
1816 } |
|
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|
1817 srcp += srcskip - 1; |
|
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|
1818 dstp += dstskip; |
|
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|
1819 } else { |
|
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|
1820 /* source and destination are aligned */ |
|
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|
1821 int w = width; |
|
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|
1822 |
|
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|
1823 /* first odd pixel? */ |
|
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|
1824 if((uintptr_t)srcp & 2) { |
|
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|
1825 Uint16 d = *dstp, s = *srcp; |
|
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|
1826 *dstp = BLEND16_50(d, s, mask); |
|
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|
1827 srcp++; |
|
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|
1828 dstp++; |
|
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|
1829 w--; |
|
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|
1830 } |
|
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|
1831 /* srcp and dstp are now 32-bit aligned */ |
|
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|
1832 |
|
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|
1833 while(w > 1) { |
|
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|
1834 Uint32 sw = *(Uint32 *)srcp; |
|
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|
1835 Uint32 dw = *(Uint32 *)dstp; |
|
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|
1836 *(Uint32 *)dstp = BLEND2x16_50(dw, sw, mask); |
|
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|
1837 srcp += 2; |
|
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|
1838 dstp += 2; |
|
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|
1839 w -= 2; |
|
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|
1840 } |
|
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|
1841 |
|
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|
1842 /* last odd pixel? */ |
|
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|
1843 if(w) { |
|
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|
1844 Uint16 d = *dstp, s = *srcp; |
|
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|
1845 *dstp = BLEND16_50(d, s, mask); |
|
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|
1846 srcp++; |
|
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|
1847 dstp++; |
|
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|
1848 } |
|
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|
1849 srcp += srcskip; |
|
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|
1850 dstp += dstskip; |
|
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|
1851 } |
|
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|
1852 } |
|
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|
1853 } |
|
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|
1854 |
| 1542 | 1855 #if GCC_ASMBLIT |
|
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|
1856 /* fast RGB565->RGB565 blending with surface alpha */ |
|
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1857 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) |
|
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1858 { |
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1859 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
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1860 if(alpha == 128) { |
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1861 Blit16to16SurfaceAlpha128(info, 0xf7de); |
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1862 } else { |
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1863 int width = info->d_width; |
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1864 int height = info->d_height; |
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1865 Uint16 *srcp = (Uint16 *)info->s_pixels; |
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1866 int srcskip = info->s_skip >> 1; |
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1867 Uint16 *dstp = (Uint16 *)info->d_pixels; |
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1868 int dstskip = info->d_skip >> 1; |
| 1542 | 1869 Uint32 s, d; |
| 1870 Uint8 load[8]; | |
|
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1871 |
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1872 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
| 1542 | 1873 *(Uint64 *)load = alpha; |
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1874 alpha >>= 3; /* downscale alpha to 5 bits */ |
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1875 |
| 1542 | 1876 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */ |
| 1877 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ | |
| 1878 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ | |
| 1879 /* position alpha to allow for mullo and mulhi on diff channels | |
| 1880 to reduce the number of operations */ | |
| 1881 psllq_i2r(3, mm0); | |
|
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1882 |
| 1542 | 1883 /* Setup the 565 color channel masks */ |
|
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1884 *(Uint64 *)load = 0x07E007E007E007E0ULL; |
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1885 movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */ |
|
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1886 *(Uint64 *)load = 0x001F001F001F001FULL; |
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1887 movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */ |
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1888 while(height--) { |
| 1542 | 1889 DUFFS_LOOP_QUATRO2( |
| 1890 { | |
| 1891 s = *srcp++; | |
|
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1892 d = *dstp; |
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1893 /* |
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1894 * shift out the middle component (green) to |
|
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1895 * the high 16 bits, and process all three RGB |
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1896 * components at the same time. |
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1897 */ |
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1898 s = (s | s << 16) & 0x07e0f81f; |
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1899 d = (d | d << 16) & 0x07e0f81f; |
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1900 d += (s - d) * alpha >> 5; |
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1901 d &= 0x07e0f81f; |
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1902 *dstp++ = d | d >> 16; |
| 1542 | 1903 },{ |
| 1904 s = *srcp++; | |
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1905 d = *dstp; |
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1906 /* |
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1907 * shift out the middle component (green) to |
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1908 * the high 16 bits, and process all three RGB |
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1909 * components at the same time. |
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1910 */ |
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1911 s = (s | s << 16) & 0x07e0f81f; |
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1912 d = (d | d << 16) & 0x07e0f81f; |
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1913 d += (s - d) * alpha >> 5; |
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1914 d &= 0x07e0f81f; |
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1915 *dstp++ = d | d >> 16; |
| 1542 | 1916 s = *srcp++; |
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1917 d = *dstp; |
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1918 /* |
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1919 * shift out the middle component (green) to |
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1920 * the high 16 bits, and process all three RGB |
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1921 * components at the same time. |
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1922 */ |
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1923 s = (s | s << 16) & 0x07e0f81f; |
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1924 d = (d | d << 16) & 0x07e0f81f; |
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1925 d += (s - d) * alpha >> 5; |
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1926 d &= 0x07e0f81f; |
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1927 *dstp++ = d | d >> 16; |
| 1542 | 1928 },{ |
| 1929 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */ | |
| 1930 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */ | |
| 1931 | |
| 1932 /* red -- does not need a mask since the right shift clears | |
| 1933 the uninteresting bits */ | |
| 1934 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 1935 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 1936 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 [000r 000r 000r 000r] */ | |
| 1937 psrlw_i2r(11, mm6); /* mm6 >> 11 -> mm6 [000r 000r 000r 000r] */ | |
| 1938 | |
| 1939 /* blend */ | |
| 1940 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 1941 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 1942 /* alpha used is actually 11 bits | |
| 1943 11 + 5 = 16 bits, so the sign bits are lost */ | |
| 1944 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ | |
| 1945 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 1946 psllw_i2r(11, mm6); /* mm6 << 11 -> mm6 */ | |
| 1947 | |
| 1948 movq_r2r(mm6, mm1); /* save new reds in dsts */ | |
| 1949 | |
| 1950 /* green -- process the bits in place */ | |
| 1951 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 1952 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 1953 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */ | |
| 1954 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */ | |
| 1955 | |
| 1956 /* blend */ | |
| 1957 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 1958 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 1959 /* 11 + 11 - 16 = 6 bits, so all the lower uninteresting | |
| 1960 bits are gone and the sign bits present */ | |
| 1961 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ | |
| 1962 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 1963 | |
| 1964 por_r2r(mm6, mm1); /* save new greens in dsts */ | |
| 1965 | |
| 1966 /* blue */ | |
| 1967 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 1968 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 1969 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */ | |
| 1970 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 1971 | |
| 1972 /* blend */ | |
| 1973 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 1974 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 1975 /* 11 + 5 = 16 bits, so the sign bits are lost and | |
| 1976 the interesting bits will need to be MASKed */ | |
| 1977 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ | |
| 1978 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 1979 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 1980 | |
| 1981 por_r2r(mm6, mm1); /* save new blues in dsts */ | |
| 1982 | |
| 1983 movq_r2m(mm1, *dstp); /* mm1 -> 4 dst pixels */ | |
| 1984 | |
| 1985 srcp += 4; | |
| 1986 dstp += 4; | |
| 1987 }, width); | |
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1988 srcp += srcskip; |
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1989 dstp += dstskip; |
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1990 } |
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1991 emms(); |
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1992 } |
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1993 } |
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1994 |
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1995 /* fast RGB555->RGB555 blending with surface alpha */ |
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1996 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) |
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1997 { |
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1998 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
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1999 if(alpha == 128) { |
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2000 Blit16to16SurfaceAlpha128(info, 0xfbde); |
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2001 } else { |
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2002 int width = info->d_width; |
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2003 int height = info->d_height; |
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2004 Uint16 *srcp = (Uint16 *)info->s_pixels; |
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2005 int srcskip = info->s_skip >> 1; |
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2006 Uint16 *dstp = (Uint16 *)info->d_pixels; |
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2007 int dstskip = info->d_skip >> 1; |
| 1542 | 2008 Uint32 s, d; |
| 2009 Uint8 load[8]; | |
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2010 |
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2011 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
| 1542 | 2012 *(Uint64 *)load = alpha; |
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2013 alpha >>= 3; /* downscale alpha to 5 bits */ |
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2014 |
| 1542 | 2015 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */ |
| 2016 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ | |
| 2017 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ | |
| 2018 /* position alpha to allow for mullo and mulhi on diff channels | |
| 2019 to reduce the number of operations */ | |
| 2020 psllq_i2r(3, mm0); | |
| 2021 | |
| 2022 /* Setup the 555 color channel masks */ | |
|
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2023 *(Uint64 *)load = 0x03E003E003E003E0ULL; |
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2024 movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */ |
|
720
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2025 *(Uint64 *)load = 0x001F001F001F001FULL; |
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2026 movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */ |
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2027 while(height--) { |
| 1542 | 2028 DUFFS_LOOP_QUATRO2( |
| 2029 { | |
| 2030 s = *srcp++; | |
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2031 d = *dstp; |
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2032 /* |
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2033 * shift out the middle component (green) to |
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2034 * the high 16 bits, and process all three RGB |
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2035 * components at the same time. |
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2036 */ |
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2037 s = (s | s << 16) & 0x03e07c1f; |
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2038 d = (d | d << 16) & 0x03e07c1f; |
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2039 d += (s - d) * alpha >> 5; |
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2040 d &= 0x03e07c1f; |
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2041 *dstp++ = d | d >> 16; |
| 1542 | 2042 },{ |
| 2043 s = *srcp++; | |
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2044 d = *dstp; |
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2045 /* |
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2046 * shift out the middle component (green) to |
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2047 * the high 16 bits, and process all three RGB |
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2048 * components at the same time. |
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2049 */ |
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2050 s = (s | s << 16) & 0x03e07c1f; |
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2051 d = (d | d << 16) & 0x03e07c1f; |
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2052 d += (s - d) * alpha >> 5; |
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2053 d &= 0x03e07c1f; |
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2054 *dstp++ = d | d >> 16; |
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2055 s = *srcp++; |
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2056 d = *dstp; |
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2057 /* |
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2058 * shift out the middle component (green) to |
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2059 * the high 16 bits, and process all three RGB |
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2060 * components at the same time. |
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2061 */ |
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2062 s = (s | s << 16) & 0x03e07c1f; |
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2063 d = (d | d << 16) & 0x03e07c1f; |
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2064 d += (s - d) * alpha >> 5; |
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|
2065 d &= 0x03e07c1f; |
|
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2066 *dstp++ = d | d >> 16; |
| 1542 | 2067 },{ |
| 2068 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */ | |
| 2069 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */ | |
| 2070 | |
| 2071 /* red -- process the bits in place */ | |
| 2072 psllq_i2r(5, mm4); /* turn MASKGREEN into MASKRED */ | |
| 2073 /* by reusing the GREEN mask we free up another mmx | |
| 2074 register to accumulate the result */ | |
| 2075 | |
| 2076 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 2077 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 2078 pand_r2r(mm4, mm5); /* src & MASKRED -> mm5 */ | |
| 2079 pand_r2r(mm4, mm6); /* dst & MASKRED -> mm6 */ | |
| 2080 | |
| 2081 /* blend */ | |
| 2082 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 2083 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 2084 /* 11 + 15 - 16 = 10 bits, uninteresting bits will be | |
| 2085 cleared by a MASK below */ | |
| 2086 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ | |
| 2087 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 2088 pand_r2r(mm4, mm6); /* mm6 & MASKRED -> mm6 */ | |
| 2089 | |
| 2090 psrlq_i2r(5, mm4); /* turn MASKRED back into MASKGREEN */ | |
| 2091 | |
| 2092 movq_r2r(mm6, mm1); /* save new reds in dsts */ | |
| 2093 | |
| 2094 /* green -- process the bits in place */ | |
| 2095 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 2096 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 2097 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */ | |
| 2098 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */ | |
| 2099 | |
| 2100 /* blend */ | |
| 2101 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 2102 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 2103 /* 11 + 10 - 16 = 5 bits, so all the lower uninteresting | |
| 2104 bits are gone and the sign bits present */ | |
| 2105 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ | |
| 2106 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 2107 | |
| 2108 por_r2r(mm6, mm1); /* save new greens in dsts */ | |
| 2109 | |
| 2110 /* blue */ | |
| 2111 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 2112 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 2113 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */ | |
| 2114 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 2115 | |
| 2116 /* blend */ | |
| 2117 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 2118 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 2119 /* 11 + 5 = 16 bits, so the sign bits are lost and | |
| 2120 the interesting bits will need to be MASKed */ | |
| 2121 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ | |
| 2122 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 2123 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 2124 | |
| 2125 por_r2r(mm6, mm1); /* save new blues in dsts */ | |
| 2126 | |
| 2127 movq_r2m(mm1, *dstp);/* mm1 -> 4 dst pixels */ | |
| 2128 | |
| 2129 srcp += 4; | |
| 2130 dstp += 4; | |
| 2131 }, width); | |
|
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2132 srcp += srcskip; |
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2133 dstp += dstskip; |
|
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|
2134 } |
|
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|
2135 emms(); |
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2136 } |
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|
2137 } |
| 1542 | 2138 /* End GCC_ASMBLIT */ |
| 2139 | |
| 2140 #elif MSVC_ASMBLIT | |
| 2141 /* fast RGB565->RGB565 blending with surface alpha */ | |
| 2142 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) | |
| 2143 { | |
| 2144 unsigned alpha = info->src->alpha; | |
| 2145 if(alpha == 128) { | |
| 2146 Blit16to16SurfaceAlpha128(info, 0xf7de); | |
| 2147 } else { | |
| 2148 int width = info->d_width; | |
| 2149 int height = info->d_height; | |
| 2150 Uint16 *srcp = (Uint16 *)info->s_pixels; | |
| 2151 int srcskip = info->s_skip >> 1; | |
| 2152 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2153 int dstskip = info->d_skip >> 1; | |
| 2154 Uint32 s, d; | |
| 2155 | |
| 2156 __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha; | |
| 2157 | |
| 2158 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ | |
| 2159 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ | |
| 2160 alpha >>= 3; /* downscale alpha to 5 bits */ | |
| 2161 | |
| 2162 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 2163 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 2164 /* position alpha to allow for mullo and mulhi on diff channels | |
| 2165 to reduce the number of operations */ | |
| 2166 mm_alpha = _mm_slli_si64(mm_alpha, 3); | |
| 2167 | |
| 2168 /* Setup the 565 color channel masks */ | |
| 2169 gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */ | |
| 2170 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ | |
| 2171 | |
| 2172 while(height--) { | |
| 2173 DUFFS_LOOP_QUATRO2( | |
| 2174 { | |
| 2175 s = *srcp++; | |
| 2176 d = *dstp; | |
| 2177 /* | |
| 2178 * shift out the middle component (green) to | |
| 2179 * the high 16 bits, and process all three RGB | |
| 2180 * components at the same time. | |
| 2181 */ | |
| 2182 s = (s | s << 16) & 0x07e0f81f; | |
| 2183 d = (d | d << 16) & 0x07e0f81f; | |
| 2184 d += (s - d) * alpha >> 5; | |
| 2185 d &= 0x07e0f81f; | |
|
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1542
diff
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|
2186 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2187 },{ |
| 2188 s = *srcp++; | |
| 2189 d = *dstp; | |
| 2190 /* | |
| 2191 * shift out the middle component (green) to | |
| 2192 * the high 16 bits, and process all three RGB | |
| 2193 * components at the same time. | |
| 2194 */ | |
| 2195 s = (s | s << 16) & 0x07e0f81f; | |
| 2196 d = (d | d << 16) & 0x07e0f81f; | |
| 2197 d += (s - d) * alpha >> 5; | |
| 2198 d &= 0x07e0f81f; | |
|
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1542
diff
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|
2199 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2200 s = *srcp++; |
| 2201 d = *dstp; | |
| 2202 /* | |
| 2203 * shift out the middle component (green) to | |
| 2204 * the high 16 bits, and process all three RGB | |
| 2205 * components at the same time. | |
| 2206 */ | |
| 2207 s = (s | s << 16) & 0x07e0f81f; | |
| 2208 d = (d | d << 16) & 0x07e0f81f; | |
| 2209 d += (s - d) * alpha >> 5; | |
| 2210 d &= 0x07e0f81f; | |
|
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1542
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|
2211 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2212 },{ |
| 2213 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */ | |
| 2214 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */ | |
| 2215 | |
| 2216 /* red */ | |
| 2217 src2 = src1; | |
| 2218 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 [000r 000r 000r 000r] */ | |
| 2219 | |
| 2220 dst2 = dst1; | |
| 2221 dst2 = _mm_srli_pi16(dst2, 11); /* dst2 >> 11 -> dst2 [000r 000r 000r 000r] */ | |
| 2222 | |
| 2223 /* blend */ | |
| 2224 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2225 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2226 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ | |
| 2227 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2228 dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */ | |
| 2229 | |
| 2230 mm_res = dst2; /* RED -> mm_res */ | |
| 2231 | |
| 2232 /* green -- process the bits in place */ | |
| 2233 src2 = src1; | |
| 2234 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */ | |
| 2235 | |
| 2236 dst2 = dst1; | |
| 2237 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */ | |
| 2238 | |
| 2239 /* blend */ | |
| 2240 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2241 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2242 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ | |
| 2243 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2244 | |
| 2245 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */ | |
| 2246 | |
| 2247 /* blue */ | |
| 2248 src2 = src1; | |
| 2249 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */ | |
| 2250 | |
| 2251 dst2 = dst1; | |
| 2252 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */ | |
| 2253 | |
| 2254 /* blend */ | |
| 2255 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2256 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2257 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ | |
| 2258 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2259 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */ | |
| 2260 | |
| 2261 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */ | |
| 2262 | |
| 2263 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */ | |
| 2264 | |
| 2265 srcp += 4; | |
| 2266 dstp += 4; | |
| 2267 }, width); | |
| 2268 srcp += srcskip; | |
| 2269 dstp += dstskip; | |
| 2270 } | |
| 2271 _mm_empty(); | |
| 2272 } | |
| 2273 } | |
| 2274 | |
| 2275 /* fast RGB555->RGB555 blending with surface alpha */ | |
| 2276 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) | |
| 2277 { | |
| 2278 unsigned alpha = info->src->alpha; | |
| 2279 if(alpha == 128) { | |
| 2280 Blit16to16SurfaceAlpha128(info, 0xfbde); | |
| 2281 } else { | |
| 2282 int width = info->d_width; | |
| 2283 int height = info->d_height; | |
| 2284 Uint16 *srcp = (Uint16 *)info->s_pixels; | |
| 2285 int srcskip = info->s_skip >> 1; | |
| 2286 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2287 int dstskip = info->d_skip >> 1; | |
| 2288 Uint32 s, d; | |
| 2289 | |
| 2290 __m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha; | |
| 2291 | |
| 2292 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ | |
| 2293 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ | |
| 2294 alpha >>= 3; /* downscale alpha to 5 bits */ | |
| 2295 | |
| 2296 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 2297 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 2298 /* position alpha to allow for mullo and mulhi on diff channels | |
| 2299 to reduce the number of operations */ | |
| 2300 mm_alpha = _mm_slli_si64(mm_alpha, 3); | |
| 2301 | |
| 2302 /* Setup the 555 color channel masks */ | |
| 2303 rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */ | |
| 2304 gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */ | |
| 2305 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ | |
| 2306 | |
| 2307 while(height--) { | |
| 2308 DUFFS_LOOP_QUATRO2( | |
| 2309 { | |
| 2310 s = *srcp++; | |
| 2311 d = *dstp; | |
| 2312 /* | |
| 2313 * shift out the middle component (green) to | |
| 2314 * the high 16 bits, and process all three RGB | |
| 2315 * components at the same time. | |
| 2316 */ | |
| 2317 s = (s | s << 16) & 0x03e07c1f; | |
| 2318 d = (d | d << 16) & 0x03e07c1f; | |
| 2319 d += (s - d) * alpha >> 5; | |
| 2320 d &= 0x03e07c1f; | |
|
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parents:
1542
diff
changeset
|
2321 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2322 },{ |
| 2323 s = *srcp++; | |
| 2324 d = *dstp; | |
| 2325 /* | |
| 2326 * shift out the middle component (green) to | |
| 2327 * the high 16 bits, and process all three RGB | |
| 2328 * components at the same time. | |
| 2329 */ | |
| 2330 s = (s | s << 16) & 0x03e07c1f; | |
| 2331 d = (d | d << 16) & 0x03e07c1f; | |
| 2332 d += (s - d) * alpha >> 5; | |
| 2333 d &= 0x03e07c1f; | |
|
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parents:
1542
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|
2334 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2335 s = *srcp++; |
| 2336 d = *dstp; | |
| 2337 /* | |
| 2338 * shift out the middle component (green) to | |
| 2339 * the high 16 bits, and process all three RGB | |
| 2340 * components at the same time. | |
| 2341 */ | |
| 2342 s = (s | s << 16) & 0x03e07c1f; | |
| 2343 d = (d | d << 16) & 0x03e07c1f; | |
| 2344 d += (s - d) * alpha >> 5; | |
| 2345 d &= 0x03e07c1f; | |
|
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parents:
1542
diff
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|
2346 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2347 },{ |
| 2348 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */ | |
| 2349 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */ | |
| 2350 | |
| 2351 /* red -- process the bits in place */ | |
| 2352 src2 = src1; | |
| 2353 src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */ | |
| 2354 | |
| 2355 dst2 = dst1; | |
| 2356 dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */ | |
| 2357 | |
| 2358 /* blend */ | |
| 2359 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2360 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2361 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ | |
| 2362 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2363 dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */ | |
| 2364 | |
| 2365 mm_res = dst2; /* RED -> mm_res */ | |
| 2366 | |
| 2367 /* green -- process the bits in place */ | |
| 2368 src2 = src1; | |
| 2369 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */ | |
| 2370 | |
| 2371 dst2 = dst1; | |
| 2372 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */ | |
| 2373 | |
| 2374 /* blend */ | |
| 2375 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2376 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2377 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ | |
| 2378 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2379 | |
| 2380 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */ | |
| 2381 | |
| 2382 /* blue */ | |
| 2383 src2 = src1; /* src -> src2 */ | |
| 2384 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */ | |
| 2385 | |
| 2386 dst2 = dst1; /* dst -> dst2 */ | |
| 2387 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */ | |
| 2388 | |
| 2389 /* blend */ | |
| 2390 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2391 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2392 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ | |
| 2393 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2394 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */ | |
| 2395 | |
| 2396 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */ | |
| 2397 | |
| 2398 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */ | |
| 2399 | |
| 2400 srcp += 4; | |
| 2401 dstp += 4; | |
| 2402 }, width); | |
| 2403 srcp += srcskip; | |
| 2404 dstp += dstskip; | |
| 2405 } | |
| 2406 _mm_empty(); | |
| 2407 } | |
| 2408 } | |
| 2409 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ | |
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2410 |
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2411 /* fast RGB565->RGB565 blending with surface alpha */ |
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2412 static void Blit565to565SurfaceAlpha(SDL_BlitInfo *info) |
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2413 { |
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2414 unsigned alpha = info->src->alpha; |
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|
2415 if(alpha == 128) { |
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changeset
|
2416 Blit16to16SurfaceAlpha128(info, 0xf7de); |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2417 } else { |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2418 int width = info->d_width; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2419 int height = info->d_height; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2420 Uint16 *srcp = (Uint16 *)info->s_pixels; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2421 int srcskip = info->s_skip >> 1; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2422 Uint16 *dstp = (Uint16 *)info->d_pixels; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2423 int dstskip = info->d_skip >> 1; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2424 alpha >>= 3; /* downscale alpha to 5 bits */ |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2425 |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2426 while(height--) { |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2427 DUFFS_LOOP4({ |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2428 Uint32 s = *srcp++; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2429 Uint32 d = *dstp; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2430 /* |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2431 * shift out the middle component (green) to |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2432 * the high 16 bits, and process all three RGB |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2433 * components at the same time. |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2434 */ |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2435 s = (s | s << 16) & 0x07e0f81f; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2436 d = (d | d << 16) & 0x07e0f81f; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2437 d += (s - d) * alpha >> 5; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2438 d &= 0x07e0f81f; |
|
1428
5f52867ba65c
Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
2439 *dstp++ = (Uint16)(d | d >> 16); |
|
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2440 }, width); |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2441 srcp += srcskip; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2442 dstp += dstskip; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2443 } |
| 0 | 2444 } |
| 2445 } | |
| 2446 | |
| 2447 /* fast RGB555->RGB555 blending with surface alpha */ | |
| 2448 static void Blit555to555SurfaceAlpha(SDL_BlitInfo *info) | |
| 2449 { | |
|
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2450 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2451 if(alpha == 128) { |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2452 Blit16to16SurfaceAlpha128(info, 0xfbde); |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2453 } else { |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2454 int width = info->d_width; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2455 int height = info->d_height; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2456 Uint16 *srcp = (Uint16 *)info->s_pixels; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2457 int srcskip = info->s_skip >> 1; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2458 Uint16 *dstp = (Uint16 *)info->d_pixels; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2459 int dstskip = info->d_skip >> 1; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2460 alpha >>= 3; /* downscale alpha to 5 bits */ |
| 0 | 2461 |
|
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2462 while(height--) { |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2463 DUFFS_LOOP4({ |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2464 Uint32 s = *srcp++; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2465 Uint32 d = *dstp; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2466 /* |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2467 * shift out the middle component (green) to |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2468 * the high 16 bits, and process all three RGB |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2469 * components at the same time. |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2470 */ |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2471 s = (s | s << 16) & 0x03e07c1f; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2472 d = (d | d << 16) & 0x03e07c1f; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2473 d += (s - d) * alpha >> 5; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2474 d &= 0x03e07c1f; |
|
1428
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Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
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1402
diff
changeset
|
2475 *dstp++ = (Uint16)(d | d >> 16); |
|
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2476 }, width); |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2477 srcp += srcskip; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2478 dstp += dstskip; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
2479 } |
| 0 | 2480 } |
| 2481 } | |
| 2482 | |
| 2483 /* fast ARGB8888->RGB565 blending with pixel alpha */ | |
| 2484 static void BlitARGBto565PixelAlpha(SDL_BlitInfo *info) | |
| 2485 { | |
| 2486 int width = info->d_width; | |
| 2487 int height = info->d_height; | |
| 2488 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 2489 int srcskip = info->s_skip >> 2; | |
| 2490 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2491 int dstskip = info->d_skip >> 1; | |
| 2492 | |
| 2493 while(height--) { | |
| 2494 DUFFS_LOOP4({ | |
| 2495 Uint32 s = *srcp; | |
| 2496 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */ | |
| 2497 /* FIXME: Here we special-case opaque alpha since the | |
| 2498 compositioning used (>>8 instead of /255) doesn't handle | |
| 2499 it correctly. Also special-case alpha=0 for speed? | |
| 2500 Benchmark this! */ | |
|
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|
2501 if(alpha) { |
|
5bb080d35049
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|
2502 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) { |
|
1428
5f52867ba65c
Update for Visual C++ 6.0
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parents:
1402
diff
changeset
|
2503 *dstp = (Uint16)((s >> 8 & 0xf800) + (s >> 5 & 0x7e0) + (s >> 3 & 0x1f)); |
|
689
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|
2504 } else { |
| 0 | 2505 Uint32 d = *dstp; |
| 2506 /* | |
| 2507 * convert source and destination to G0RAB65565 | |
| 2508 * and blend all components at the same time | |
| 2509 */ | |
| 2510 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800) | |
| 2511 + (s >> 3 & 0x1f); | |
| 2512 d = (d | d << 16) & 0x07e0f81f; | |
| 2513 d += (s - d) * alpha >> 5; | |
| 2514 d &= 0x07e0f81f; | |
|
1428
5f52867ba65c
Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
2515 *dstp = (Uint16)(d | d >> 16); |
|
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|
2516 } |
| 0 | 2517 } |
| 2518 srcp++; | |
| 2519 dstp++; | |
| 2520 }, width); | |
| 2521 srcp += srcskip; | |
| 2522 dstp += dstskip; | |
| 2523 } | |
| 2524 } | |
| 2525 | |
| 2526 /* fast ARGB8888->RGB555 blending with pixel alpha */ | |
| 2527 static void BlitARGBto555PixelAlpha(SDL_BlitInfo *info) | |
| 2528 { | |
| 2529 int width = info->d_width; | |
| 2530 int height = info->d_height; | |
| 2531 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 2532 int srcskip = info->s_skip >> 2; | |
| 2533 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2534 int dstskip = info->d_skip >> 1; | |
| 2535 | |
| 2536 while(height--) { | |
| 2537 DUFFS_LOOP4({ | |
| 2538 unsigned alpha; | |
| 2539 Uint32 s = *srcp; | |
| 2540 alpha = s >> 27; /* downscale alpha to 5 bits */ | |
| 2541 /* FIXME: Here we special-case opaque alpha since the | |
| 2542 compositioning used (>>8 instead of /255) doesn't handle | |
| 2543 it correctly. Also special-case alpha=0 for speed? | |
| 2544 Benchmark this! */ | |
|
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changeset
|
2545 if(alpha) { |
|
5bb080d35049
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|
2546 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) { |
|
1428
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Update for Visual C++ 6.0
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parents:
1402
diff
changeset
|
2547 *dstp = (Uint16)((s >> 9 & 0x7c00) + (s >> 6 & 0x3e0) + (s >> 3 & 0x1f)); |
|
689
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Date: Tue, 19 Aug 2003 17:57:00 +0200
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diff
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|
2548 } else { |
| 0 | 2549 Uint32 d = *dstp; |
| 2550 /* | |
| 2551 * convert source and destination to G0RAB65565 | |
| 2552 * and blend all components at the same time | |
| 2553 */ | |
| 2554 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00) | |
| 2555 + (s >> 3 & 0x1f); | |
| 2556 d = (d | d << 16) & 0x03e07c1f; | |
| 2557 d += (s - d) * alpha >> 5; | |
| 2558 d &= 0x03e07c1f; | |
|
1428
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Update for Visual C++ 6.0
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1402
diff
changeset
|
2559 *dstp = (Uint16)(d | d >> 16); |
|
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|
2560 } |
| 0 | 2561 } |
| 2562 srcp++; | |
| 2563 dstp++; | |
| 2564 }, width); | |
| 2565 srcp += srcskip; | |
| 2566 dstp += dstskip; | |
| 2567 } | |
| 2568 } | |
| 2569 | |
| 2570 /* General (slow) N->N blending with per-surface alpha */ | |
| 2571 static void BlitNtoNSurfaceAlpha(SDL_BlitInfo *info) | |
| 2572 { | |
| 2573 int width = info->d_width; | |
| 2574 int height = info->d_height; | |
| 2575 Uint8 *src = info->s_pixels; | |
| 2576 int srcskip = info->s_skip; | |
| 2577 Uint8 *dst = info->d_pixels; | |
| 2578 int dstskip = info->d_skip; | |
| 2579 SDL_PixelFormat *srcfmt = info->src; | |
| 2580 SDL_PixelFormat *dstfmt = info->dst; | |
| 2581 int srcbpp = srcfmt->BytesPerPixel; | |
| 2582 int dstbpp = dstfmt->BytesPerPixel; | |
| 2583 unsigned sA = srcfmt->alpha; | |
| 2584 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; | |
| 2585 | |
|
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changeset
|
2586 if(sA) { |
|
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|
2587 while ( height-- ) { |
| 0 | 2588 DUFFS_LOOP4( |
| 2589 { | |
|
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Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
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diff
changeset
|
2590 Uint32 Pixel; |
| 0 | 2591 unsigned sR; |
| 2592 unsigned sG; | |
| 2593 unsigned sB; | |
| 2594 unsigned dR; | |
| 2595 unsigned dG; | |
| 2596 unsigned dB; | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
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diff
changeset
|
2597 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
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parents:
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diff
changeset
|
2598 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB); |
| 0 | 2599 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
| 2600 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); | |
| 2601 src += srcbpp; | |
| 2602 dst += dstbpp; | |
| 2603 }, | |
| 2604 width); | |
| 2605 src += srcskip; | |
| 2606 dst += dstskip; | |
|
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|
2607 } |
| 0 | 2608 } |
| 2609 } | |
| 2610 | |
| 2611 /* General (slow) colorkeyed N->N blending with per-surface alpha */ | |
| 2612 static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info) | |
| 2613 { | |
| 2614 int width = info->d_width; | |
| 2615 int height = info->d_height; | |
| 2616 Uint8 *src = info->s_pixels; | |
| 2617 int srcskip = info->s_skip; | |
| 2618 Uint8 *dst = info->d_pixels; | |
| 2619 int dstskip = info->d_skip; | |
| 2620 SDL_PixelFormat *srcfmt = info->src; | |
| 2621 SDL_PixelFormat *dstfmt = info->dst; | |
| 2622 Uint32 ckey = srcfmt->colorkey; | |
| 2623 int srcbpp = srcfmt->BytesPerPixel; | |
| 2624 int dstbpp = dstfmt->BytesPerPixel; | |
| 2625 unsigned sA = srcfmt->alpha; | |
| 2626 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; | |
| 2627 | |
| 2628 while ( height-- ) { | |
| 2629 DUFFS_LOOP4( | |
| 2630 { | |
|
1162
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Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2631 Uint32 Pixel; |
| 0 | 2632 unsigned sR; |
| 2633 unsigned sG; | |
| 2634 unsigned sB; | |
| 2635 unsigned dR; | |
| 2636 unsigned dG; | |
| 2637 unsigned dB; | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2638 RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel); |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2639 if(sA && Pixel != ckey) { |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
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parents:
1047
diff
changeset
|
2640 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
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diff
changeset
|
2641 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB); |
| 0 | 2642 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
| 2643 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); | |
| 2644 } | |
| 2645 src += srcbpp; | |
| 2646 dst += dstbpp; | |
| 2647 }, | |
| 2648 width); | |
| 2649 src += srcskip; | |
| 2650 dst += dstskip; | |
| 2651 } | |
| 2652 } | |
| 2653 | |
| 2654 /* General (slow) N->N blending with pixel alpha */ | |
| 2655 static void BlitNtoNPixelAlpha(SDL_BlitInfo *info) | |
| 2656 { | |
| 2657 int width = info->d_width; | |
| 2658 int height = info->d_height; | |
| 2659 Uint8 *src = info->s_pixels; | |
| 2660 int srcskip = info->s_skip; | |
| 2661 Uint8 *dst = info->d_pixels; | |
| 2662 int dstskip = info->d_skip; | |
| 2663 SDL_PixelFormat *srcfmt = info->src; | |
| 2664 SDL_PixelFormat *dstfmt = info->dst; | |
| 2665 | |
| 2666 int srcbpp; | |
| 2667 int dstbpp; | |
| 2668 | |
| 2669 /* Set up some basic variables */ | |
| 2670 srcbpp = srcfmt->BytesPerPixel; | |
| 2671 dstbpp = dstfmt->BytesPerPixel; | |
| 2672 | |
| 2673 /* FIXME: for 8bpp source alpha, this doesn't get opaque values | |
| 2674 quite right. for <8bpp source alpha, it gets them very wrong | |
| 2675 (check all macros!) | |
| 2676 It is unclear whether there is a good general solution that doesn't | |
| 2677 need a branch (or a divide). */ | |
| 2678 while ( height-- ) { | |
| 2679 DUFFS_LOOP4( | |
| 2680 { | |
|
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Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
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|
2681 Uint32 Pixel; |
| 0 | 2682 unsigned sR; |
| 2683 unsigned sG; | |
| 2684 unsigned sB; | |
| 2685 unsigned dR; | |
| 2686 unsigned dG; | |
| 2687 unsigned dB; | |
| 2688 unsigned sA; | |
| 2689 unsigned dA; | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
changeset
|
2690 DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA); |
|
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|
2691 if(sA) { |
|
1162
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Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
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diff
changeset
|
2692 DISEMBLE_RGBA(dst, dstbpp, dstfmt, Pixel, dR, dG, dB, dA); |
|
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2693 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
|
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2694 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); |
|
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2695 } |
| 0 | 2696 src += srcbpp; |
| 2697 dst += dstbpp; | |
| 2698 }, | |
| 2699 width); | |
| 2700 src += srcskip; | |
| 2701 dst += dstskip; | |
| 2702 } | |
| 2703 } | |
| 2704 | |
| 2705 | |
| 2706 SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index) | |
| 2707 { | |
| 2708 SDL_PixelFormat *sf = surface->format; | |
| 2709 SDL_PixelFormat *df = surface->map->dst->format; | |
| 2710 | |
| 2711 if(sf->Amask == 0) { | |
| 2712 if((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) { | |
| 2713 if(df->BytesPerPixel == 1) | |
| 2714 return BlitNto1SurfaceAlphaKey; | |
| 2715 else | |
|
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New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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1358
diff
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|
2716 #if SDL_ALTIVEC_BLITTERS |
| 1240 | 2717 if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 && |
| 2718 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) | |
|
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ffaaf7ecf685
Altivec-optimized blitters!
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2719 return Blit32to32SurfaceAlphaKeyAltivec; |
|
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Altivec-optimized blitters!
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2720 else |
|
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2721 #endif |
|
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2722 return BlitNtoNSurfaceAlphaKey; |
| 0 | 2723 } else { |
| 2724 /* Per-surface alpha blits */ | |
| 2725 switch(df->BytesPerPixel) { | |
| 2726 case 1: | |
| 2727 return BlitNto1SurfaceAlpha; | |
| 2728 | |
| 2729 case 2: | |
| 2730 if(surface->map->identity) { | |
| 2731 if(df->Gmask == 0x7e0) | |
|
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2732 { |
|
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New configure-based build system. Still work in progress, but much improved
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|
2733 #if MMX_ASMBLIT |
|
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
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|
2734 if(SDL_HasMMX()) |
|
689
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2735 return Blit565to565SurfaceAlphaMMX; |
|
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2736 else |
|
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2737 #endif |
| 0 | 2738 return Blit565to565SurfaceAlpha; |
|
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2739 } |
| 0 | 2740 else if(df->Gmask == 0x3e0) |
|
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2741 { |
|
1361
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New configure-based build system. Still work in progress, but much improved
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diff
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|
2742 #if MMX_ASMBLIT |
|
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
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|
2743 if(SDL_HasMMX()) |
|
689
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2744 return Blit555to555SurfaceAlphaMMX; |
|
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2745 else |
|
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2746 #endif |
| 0 | 2747 return Blit555to555SurfaceAlpha; |
|
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2748 } |
| 0 | 2749 } |
| 2750 return BlitNtoNSurfaceAlpha; | |
| 2751 | |
| 2752 case 4: | |
| 2753 if(sf->Rmask == df->Rmask | |
| 2754 && sf->Gmask == df->Gmask | |
| 2755 && sf->Bmask == df->Bmask | |
| 2756 && sf->BytesPerPixel == 4) | |
|
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2757 { |
|
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New configure-based build system. Still work in progress, but much improved
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diff
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|
2758 #if MMX_ASMBLIT |
| 1542 | 2759 if(sf->Rshift % 8 == 0 |
| 2760 && sf->Gshift % 8 == 0 | |
| 2761 && sf->Bshift % 8 == 0 | |
| 2762 && SDL_HasMMX()) | |
| 2763 return BlitRGBtoRGBSurfaceAlphaMMX; | |
| 2764 #endif | |
| 2765 if((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff) | |
| 2766 { | |
|
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Patch from Alex to fix reverted code
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|
2767 #if SDL_ALTIVEC_BLITTERS |
|
b255b4058d37
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diff
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|
2768 if(!(surface->map->dst->flags & SDL_HWSURFACE) |
|
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Patch from Alex to fix reverted code
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|
2769 && SDL_HasAltiVec()) |
| 1542 | 2770 return BlitRGBtoRGBSurfaceAlphaAltivec; |
| 2771 #endif | |
| 2772 return BlitRGBtoRGBSurfaceAlpha; | |
| 2773 } | |
| 2774 } | |
| 2775 #if SDL_ALTIVEC_BLITTERS | |
| 2776 if((sf->BytesPerPixel == 4) && | |
| 2777 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) | |
| 2778 return Blit32to32SurfaceAlphaAltivec; | |
|
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2779 else |
|
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2780 #endif |
| 1542 | 2781 return BlitNtoNSurfaceAlpha; |
| 0 | 2782 |
| 2783 case 3: | |
| 2784 default: | |
| 2785 return BlitNtoNSurfaceAlpha; | |
| 2786 } | |
| 2787 } | |
| 2788 } else { | |
| 2789 /* Per-pixel alpha blits */ | |
| 2790 switch(df->BytesPerPixel) { | |
| 2791 case 1: | |
| 2792 return BlitNto1PixelAlpha; | |
| 2793 | |
| 2794 case 2: | |
|
1361
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New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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|
2795 #if SDL_ALTIVEC_BLITTERS |
| 1240 | 2796 if(sf->BytesPerPixel == 4 && !(surface->map->dst->flags & SDL_HWSURFACE) && |
|
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parents:
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2797 df->Gmask == 0x7e0 && |
| 1240 | 2798 df->Bmask == 0x1f && SDL_HasAltiVec()) |
|
1047
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Altivec-optimized blitters!
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parents:
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|
2799 return Blit32to565PixelAlphaAltivec; |
|
ffaaf7ecf685
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2800 else |
|
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Altivec-optimized blitters!
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|
2801 #endif |
| 0 | 2802 if(sf->BytesPerPixel == 4 && sf->Amask == 0xff000000 |
| 2803 && sf->Gmask == 0xff00 | |
| 2804 && ((sf->Rmask == 0xff && df->Rmask == 0x1f) | |
| 2805 || (sf->Bmask == 0xff && df->Bmask == 0x1f))) { | |
| 2806 if(df->Gmask == 0x7e0) | |
| 2807 return BlitARGBto565PixelAlpha; | |
| 2808 else if(df->Gmask == 0x3e0) | |
| 2809 return BlitARGBto555PixelAlpha; | |
| 2810 } | |
| 2811 return BlitNtoNPixelAlpha; | |
| 2812 | |
| 2813 case 4: | |
| 1542 | 2814 if(sf->Rmask == df->Rmask |
| 0 | 2815 && sf->Gmask == df->Gmask |
| 2816 && sf->Bmask == df->Bmask | |
| 2817 && sf->BytesPerPixel == 4) | |
|
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2818 { |
|
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New configure-based build system. Still work in progress, but much improved
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|
2819 #if MMX_ASMBLIT |
| 1542 | 2820 if(sf->Rshift % 8 == 0 |
| 2821 && sf->Gshift % 8 == 0 | |
| 2822 && sf->Bshift % 8 == 0 | |
| 2823 && sf->Ashift % 8 == 0 | |
| 2824 && sf->Aloss == 0) | |
| 2825 { | |
| 2826 if(SDL_Has3DNow()) | |
| 2827 return BlitRGBtoRGBPixelAlphaMMX3DNOW; | |
| 2828 if(SDL_HasMMX()) | |
| 2829 return BlitRGBtoRGBPixelAlphaMMX; | |
| 2830 } | |
|
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2831 #endif |
| 1542 | 2832 if(sf->Amask == 0xff000000) |
| 2833 { | |
|
1617
b255b4058d37
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Sam Lantinga <slouken@libsdl.org>
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|
2834 #if SDL_ALTIVEC_BLITTERS |
|
b255b4058d37
Patch from Alex to fix reverted code
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diff
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|
2835 if(!(surface->map->dst->flags & SDL_HWSURFACE) |
|
b255b4058d37
Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
2836 && SDL_HasAltiVec()) |
| 1542 | 2837 return BlitRGBtoRGBPixelAlphaAltivec; |
|
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parents:
880
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|
2838 #endif |
| 1542 | 2839 return BlitRGBtoRGBPixelAlpha; |
| 2840 } | |
|
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|
2841 } |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
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parents:
1358
diff
changeset
|
2842 #if SDL_ALTIVEC_BLITTERS |
| 1542 | 2843 if (sf->Amask && sf->BytesPerPixel == 4 && |
| 2844 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) | |
| 2845 return Blit32to32PixelAlphaAltivec; | |
| 2846 else | |
|
1047
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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|
2847 #endif |
| 1542 | 2848 return BlitNtoNPixelAlpha; |
| 0 | 2849 |
| 2850 case 3: | |
| 2851 default: | |
| 2852 return BlitNtoNPixelAlpha; | |
| 2853 } | |
| 2854 } | |
| 2855 } | |
| 2856 |