Mercurial > sdl-ios-xcode
annotate src/video/SDL_blit_A.c @ 1546:4b835e36633d
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| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 16 Mar 2006 00:35:21 +0000 |
| parents | a8bf1aa21020 |
| children | b255b4058d37 |
| 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 */ | |
| 372 movd_m2r(sf->Ashift, mm5); /* Ashift -> mm5 */ | |
| 373 | |
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374 while(height--) { |
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375 DUFFS_LOOP4({ |
| 1542 | 376 Uint32 alpha = *srcp & amask; |
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377 /* FIXME: Here we special-case opaque alpha since the |
| 1542 | 378 compositioning used (>>8 instead of /255) doesn't handle |
| 379 it correctly. Also special-case alpha=0 for speed? | |
| 380 Benchmark this! */ | |
| 381 if(alpha == 0) { | |
| 382 /* do nothing */ | |
| 383 } else if(alpha == amask) { | |
| 384 /* opaque alpha -- copy RGB, keep dst alpha */ | |
| 385 /* using MMX here to free up regular registers for other things */ | |
| 386 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ | |
| 387 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ | |
| 388 pand_r2r(mm0, mm1); /* src & chanmask -> mm1 */ | |
| 389 pand_r2r(mm3, mm2); /* dst & ~chanmask -> mm2 */ | |
| 390 por_r2r(mm1, mm2); /* src | dst -> mm2 */ | |
| 391 movd_r2m(mm2, (*dstp)); /* mm2 -> dst */ | |
| 392 } else { | |
| 393 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ | |
| 394 punpcklbw_r2r(mm6, mm1); /* 0A0R0G0B -> mm1 */ | |
| 395 | |
| 396 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ | |
| 397 punpcklbw_r2r(mm6, mm2); /* 0A0R0G0B -> mm2 */ | |
| 398 | |
| 399 __asm__ __volatile__ ( | |
| 400 "movd %0, %%mm4" | |
| 401 : : "r" (alpha) ); /* 0000A000 -> mm4 */ | |
| 402 psrld_r2r(mm5, mm4); /* mm4 >> mm5 -> mm4 (0000000A) */ | |
| 403 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */ | |
| 404 punpcklwd_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */ | |
| 405 pand_r2r(mm7, mm4); /* 000A0A0A -> mm4, preserve dst alpha on add */ | |
| 406 | |
| 407 /* blend */ | |
| 408 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */ | |
| 409 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ | |
| 410 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1(000R0G0B) */ | |
| 411 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */ | |
| 412 | |
| 413 packuswb_r2r(mm6, mm2); /* 0000ARGB -> mm2 */ | |
| 414 movd_r2m(mm2, *dstp);/* mm2 -> dst */ | |
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415 } |
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416 ++srcp; |
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417 ++dstp; |
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418 }, width); |
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419 srcp += srcskip; |
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420 dstp += dstskip; |
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421 } |
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422 emms(); |
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423 } |
| 1542 | 424 /* End GCC_ASMBLIT */ |
| 425 | |
| 426 #elif MSVC_ASMBLIT | |
| 427 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ | |
| 428 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info) | |
| 429 { | |
| 430 int width = info->d_width; | |
| 431 int height = info->d_height; | |
| 432 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 433 int srcskip = info->s_skip >> 2; | |
| 434 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 435 int dstskip = info->d_skip >> 2; | |
| 436 Uint32 dalpha = info->dst->Amask; | |
| 437 | |
| 438 __m64 src1, src2, dst1, dst2, lmask, hmask, dsta; | |
| 439 | |
| 440 hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */ | |
| 441 lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */ | |
| 442 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ | |
| 443 | |
| 444 while (height--) { | |
| 445 int n = width; | |
| 446 if ( n & 1 ) { | |
| 447 Uint32 s = *srcp++; | |
| 448 Uint32 d = *dstp; | |
| 449 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) | |
| 450 + (s & d & 0x00010101)) | dalpha; | |
| 451 n--; | |
| 452 } | |
| 453 | |
| 454 for (n >>= 1; n > 0; --n) { | |
| 455 dst1 = *(__m64*)dstp; /* 2 x dst -> dst1(ARGBARGB) */ | |
| 456 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ | |
| 457 | |
| 458 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB) */ | |
| 459 src2 = src1; /* 2 x src -> src2(ARGBARGB) */ | |
| 460 | |
| 461 dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */ | |
| 462 src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */ | |
| 463 src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */ | |
| 464 src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */ | |
| 465 | |
| 466 dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */ | |
| 467 dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */ | |
| 468 dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */ | |
| 469 dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) | dst1 -> dst1 */ | |
| 470 | |
| 471 *(__m64*)dstp = dst1; /* dst1 -> 2 x dst pixels */ | |
| 472 dstp += 2; | |
| 473 srcp += 2; | |
| 474 } | |
| 475 | |
| 476 srcp += srcskip; | |
| 477 dstp += dstskip; | |
| 478 } | |
| 479 _mm_empty(); | |
| 480 } | |
| 481 | |
| 482 /* fast RGB888->(A)RGB888 blending with surface alpha */ | |
| 483 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info) | |
| 484 { | |
| 485 SDL_PixelFormat* df = info->dst; | |
| 486 Uint32 chanmask = df->Rmask | df->Gmask | df->Bmask; | |
| 487 unsigned alpha = info->src->alpha; | |
| 488 | |
| 489 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { | |
| 490 /* only call a128 version when R,G,B occupy lower bits */ | |
| 491 BlitRGBtoRGBSurfaceAlpha128MMX(info); | |
| 492 } else { | |
| 493 int width = info->d_width; | |
| 494 int height = info->d_height; | |
| 495 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 496 int srcskip = info->s_skip >> 2; | |
| 497 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 498 int dstskip = info->d_skip >> 2; | |
| 499 Uint32 dalpha = df->Amask; | |
| 500 Uint32 amult; | |
| 501 | |
| 502 __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta; | |
| 503 | |
| 504 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ | |
| 505 /* form the alpha mult */ | |
| 506 amult = alpha | (alpha << 8); | |
| 507 amult = amult | (amult << 16); | |
| 508 chanmask = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift); | |
| 509 mm_alpha = _mm_set_pi32(0, amult & chanmask); /* 0000AAAA -> mm_alpha, minus 1 chan */ | |
| 510 mm_alpha = _mm_unpacklo_pi8(mm_alpha, mm_zero); /* 0A0A0A0A -> mm_alpha, minus 1 chan */ | |
| 511 /* at this point mm_alpha can be 000A0A0A or 0A0A0A00 or another combo */ | |
| 512 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ | |
| 513 | |
| 514 while (height--) { | |
| 515 int n = width; | |
| 516 if (n & 1) { | |
| 517 /* One Pixel Blend */ | |
| 518 src2 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src2 (0000ARGB)*/ | |
| 519 src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */ | |
| 520 | |
| 521 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ | |
| 522 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ | |
| 523 | |
| 524 src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */ | |
| 525 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 526 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ | |
| 527 dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */ | |
| 528 | |
| 529 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ | |
| 530 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ | |
| 531 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ | |
| 532 | |
| 533 ++srcp; | |
| 534 ++dstp; | |
| 535 | |
| 536 n--; | |
| 537 } | |
| 538 | |
| 539 for (n >>= 1; n > 0; --n) { | |
| 540 /* Two Pixels Blend */ | |
| 541 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB)*/ | |
| 542 src2 = src1; /* 2 x src -> src2(ARGBARGB) */ | |
| 543 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */ | |
| 544 src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */ | |
| 545 | |
| 546 dst1 = *(__m64*)dstp;/* 2 x dst -> dst1(ARGBARGB) */ | |
| 547 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ | |
| 548 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */ | |
| 549 dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */ | |
| 550 | |
| 551 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */ | |
| 552 src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */ | |
| 553 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */ | |
| 554 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */ | |
| 555 | |
| 556 src2 = _mm_sub_pi16(src2, dst2);/* src2 - dst2 -> src2 */ | |
| 557 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 558 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ | |
| 559 dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */ | |
| 560 | |
| 561 dst1 = _mm_packs_pu16(dst1, dst2); /* 0A0R0G0B(res1), 0A0R0G0B(res2) -> dst1(ARGBARGB) */ | |
| 562 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ | |
| 563 | |
| 564 *(__m64*)dstp = dst1; /* dst1 -> 2 x pixel */ | |
| 565 | |
| 566 srcp += 2; | |
| 567 dstp += 2; | |
| 568 } | |
| 569 srcp += srcskip; | |
| 570 dstp += dstskip; | |
| 571 } | |
| 572 _mm_empty(); | |
| 573 } | |
| 574 } | |
| 575 | |
| 576 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ | |
| 577 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info) | |
| 578 { | |
| 579 int width = info->d_width; | |
| 580 int height = info->d_height; | |
| 581 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 582 int srcskip = info->s_skip >> 2; | |
| 583 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 584 int dstskip = info->d_skip >> 2; | |
| 585 SDL_PixelFormat* sf = info->src; | |
| 586 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; | |
| 587 Uint32 amask = sf->Amask; | |
| 588 Uint32 ashift = sf->Ashift; | |
| 589 Uint64 multmask; | |
| 590 | |
| 591 __m64 src1, dst1, mm_alpha, mm_zero, dmask; | |
| 592 | |
| 593 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ | |
| 594 multmask = ~(0xFFFFi64 << (ashift * 2)); | |
| 595 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ | |
| 596 | |
| 597 while(height--) { | |
| 598 DUFFS_LOOP4({ | |
| 599 Uint32 alpha = *srcp & amask; | |
| 600 if (alpha == 0) { | |
| 601 /* do nothing */ | |
| 602 } else if (alpha == amask) { | |
| 603 /* opaque alpha -- copy RGB, keep dst alpha */ | |
| 604 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask); | |
| 605 } else { | |
| 606 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/ | |
| 607 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */ | |
| 608 | |
| 609 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ | |
| 610 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ | |
| 611 | |
| 612 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */ | |
| 613 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */ | |
| 614 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 615 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 616 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */ | |
| 617 | |
| 618 /* blend */ | |
| 619 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */ | |
| 620 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src1 - dst1) * alpha -> src1 */ | |
| 621 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */ | |
| 622 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1 -> dst1(0A0R0G0B) */ | |
| 623 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ | |
| 624 | |
| 625 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ | |
| 626 } | |
| 627 ++srcp; | |
| 628 ++dstp; | |
| 629 }, width); | |
| 630 srcp += srcskip; | |
| 631 dstp += dstskip; | |
| 632 } | |
| 633 _mm_empty(); | |
| 634 } | |
| 635 /* End MSVC_ASMBLIT */ | |
| 636 | |
| 637 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ | |
|
689
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638 |
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639 #if SDL_ALTIVEC_BLITTERS |
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640 #if HAVE_ALTIVEC_H |
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641 #include <altivec.h> |
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642 #endif |
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643 #include <assert.h> |
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644 |
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Use consistent identifiers for the various platforms we support.
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645 #if (defined(__MACOSX__) && (__GNUC__ < 4)) |
|
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646 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ |
|
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647 (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p ) |
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648 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ |
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649 (vector unsigned short) ( a,b,c,d,e,f,g,h ) |
|
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650 #else |
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651 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
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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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Enable altivec blitters on PowerPC Linux, and some fixes for recent
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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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changeset
|
655 #endif |
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656 |
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657 #define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F) |
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658 #define VECPRINT(msg, v) do { \ |
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659 vector unsigned int tmpvec = (vector unsigned int)(v); \ |
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660 unsigned int *vp = (unsigned int *)&tmpvec; \ |
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661 printf("%s = %08X %08X %08X %08X\n", msg, vp[0], vp[1], vp[2], vp[3]); \ |
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662 } while (0) |
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663 |
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664 /* the permuation vector that takes the high bytes out of all the appropriate shorts |
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665 (vector unsigned char)( |
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666 0x00, 0x10, 0x02, 0x12, |
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667 0x04, 0x14, 0x06, 0x16, |
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668 0x08, 0x18, 0x0A, 0x1A, |
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669 0x0C, 0x1C, 0x0E, 0x1E ); |
|
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670 */ |
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|
671 #define VEC_MERGE_PERMUTE() (vec_add(vec_lvsl(0, (int*)NULL), (vector unsigned char)vec_splat_u16(0x0F))) |
|
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672 #define VEC_U32_24() (vec_add(vec_splat_u32(12), vec_splat_u32(12))) |
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673 #define VEC_ALPHA_MASK() ((vector unsigned char)vec_sl((vector unsigned int)vec_splat_s8(-1), VEC_U32_24())) |
|
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674 #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \ |
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675 ? vec_lvsl(0, src) \ |
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676 : vec_add(vec_lvsl(8, src), vec_splat_u8(8))) |
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|
677 |
|
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|
678 |
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diff
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|
679 #define VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1_16, v8_16) do { \ |
|
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Altivec-optimized blitters!
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680 /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \ |
|
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681 vector unsigned short vtemp1 = vec_mule(vs, valpha); \ |
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parents:
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diff
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682 /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \ |
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683 vector unsigned short vtemp2 = vec_mulo(vs, valpha); \ |
|
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|
684 /* valpha2 is 255-alpha */ \ |
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|
685 vector unsigned char valpha2 = vec_nor(valpha, valpha); \ |
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686 /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \ |
|
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Altivec-optimized blitters!
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687 vector unsigned short vtemp3 = vec_mule(vd, valpha2); \ |
|
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688 /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \ |
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689 vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \ |
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690 /* add source and dest */ \ |
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691 vtemp1 = vec_add(vtemp1, vtemp3); \ |
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Altivec-optimized blitters!
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692 vtemp2 = vec_add(vtemp2, vtemp4); \ |
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693 /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \ |
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694 vtemp1 = vec_add(vtemp1, v1_16); \ |
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695 vtemp3 = vec_sr(vtemp1, v8_16); \ |
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696 vtemp1 = vec_add(vtemp1, vtemp3); \ |
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697 /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \ |
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698 vtemp2 = vec_add(vtemp2, v1_16); \ |
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699 vtemp4 = vec_sr(vtemp2, v8_16); \ |
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700 vtemp2 = vec_add(vtemp2, vtemp4); \ |
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|
701 /* (>>8) and get ARGBARGBARGBARGB */ \ |
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702 vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \ |
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703 } while (0) |
|
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704 |
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705 /* Calculate the permute vector used for 32->32 swizzling */ |
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706 static vector unsigned char calc_swizzle32(const SDL_PixelFormat *srcfmt, |
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707 const SDL_PixelFormat *dstfmt) |
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708 { |
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709 /* |
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710 * We have to assume that the bits that aren't used by other |
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711 * colors is alpha, and it's one complete byte, since some formats |
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712 * leave alpha with a zero mask, but we should still swizzle the bits. |
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713 */ |
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714 /* ARGB */ |
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715 const static struct SDL_PixelFormat default_pixel_format = { |
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716 NULL, 0, 0, |
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|
717 0, 0, 0, 0, |
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718 16, 8, 0, 24, |
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719 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000, |
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720 0, 0}; |
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|
721 if (!srcfmt) { |
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722 srcfmt = &default_pixel_format; |
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723 } |
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724 if (!dstfmt) { |
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725 dstfmt = &default_pixel_format; |
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726 } |
|
1487
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727 const vector unsigned char plus = VECUINT8_LITERAL |
|
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728 ( 0x00, 0x00, 0x00, 0x00, |
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729 0x04, 0x04, 0x04, 0x04, |
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730 0x08, 0x08, 0x08, 0x08, |
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Altivec-optimized blitters!
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|
731 0x0C, 0x0C, 0x0C, 0x0C ); |
|
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|
732 vector unsigned char vswiz; |
|
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|
733 vector unsigned int srcvec; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
734 #define RESHIFT(X) (3 - ((X) >> 3)) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
735 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
736 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
737 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
738 Uint32 amask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
739 /* 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
|
740 if (dstfmt->Amask) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
741 amask = ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->Ashift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
742 } else { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
743 amask = 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ 0xFFFFFFFF); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
744 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
745 #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
|
746 ((unsigned int *)(char*)&srcvec)[0] = (rmask | gmask | bmask | amask); |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
747 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
|
748 return(vswiz); |
|
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 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
751 static void Blit32to565PixelAlphaAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
752 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
753 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
754 Uint8 *src = (Uint8 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
755 int srcskip = info->s_skip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
756 Uint8 *dst = (Uint8 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
757 int dstskip = info->d_skip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
758 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
759 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
760 vector unsigned char v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
761 vector unsigned short v8_16 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
762 vector unsigned short v1_16 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
763 vector unsigned short v2_16 = vec_splat_u16(2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
764 vector unsigned short v3_16 = vec_splat_u16(3); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
765 vector unsigned int v8_32 = vec_splat_u32(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
766 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
|
767 vector unsigned short v3f = VECUINT16_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
768 0x003f, 0x003f, 0x003f, 0x003f, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
769 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
|
770 vector unsigned short vfc = VECUINT16_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
771 0x00fc, 0x00fc, 0x00fc, 0x00fc, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
772 0x00fc, 0x00fc, 0x00fc, 0x00fc); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
773 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
774 /* |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
775 0x10 - 0x1f is the alpha |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
776 0x00 - 0x0e evens are the red |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
777 0x01 - 0x0f odds are zero |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
778 */ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
779 vector unsigned char vredalpha1 = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
780 0x10, 0x00, 0x01, 0x01, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
781 0x10, 0x02, 0x01, 0x01, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
782 0x10, 0x04, 0x01, 0x01, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
783 0x10, 0x06, 0x01, 0x01 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
784 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
785 vector unsigned char vredalpha2 = (vector unsigned char)( |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
786 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
|
787 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
788 /* |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
789 0x00 - 0x0f is ARxx ARxx ARxx ARxx |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
790 0x11 - 0x0f odds are blue |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
791 */ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
792 vector unsigned char vblue1 = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
793 0x00, 0x01, 0x02, 0x11, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
794 0x04, 0x05, 0x06, 0x13, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
795 0x08, 0x09, 0x0a, 0x15, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
796 0x0c, 0x0d, 0x0e, 0x17 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
797 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
798 vector unsigned char vblue2 = (vector unsigned char)( |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
799 vec_add((vector unsigned int)vblue1, v8_32) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
800 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
801 /* |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
802 0x00 - 0x0f is ARxB ARxB ARxB ARxB |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
803 0x10 - 0x0e evens are green |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
804 */ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
805 vector unsigned char vgreen1 = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
806 0x00, 0x01, 0x10, 0x03, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
807 0x04, 0x05, 0x12, 0x07, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
808 0x08, 0x09, 0x14, 0x0b, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
809 0x0c, 0x0d, 0x16, 0x0f |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
810 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
811 vector unsigned char vgreen2 = (vector unsigned char)( |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
812 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
|
813 ); |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
814 vector unsigned char vgmerge = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
815 0x00, 0x02, 0x00, 0x06, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
816 0x00, 0x0a, 0x00, 0x0e, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
817 0x00, 0x12, 0x00, 0x16, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
818 0x00, 0x1a, 0x00, 0x1e); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
819 vector unsigned char mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
820 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
821 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
|
822 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
823 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
|
824 vf800 = vec_sl(vf800, vec_splat_u16(8)); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
825 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
826 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
827 int extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
828 vector unsigned char valigner; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
829 vector unsigned char vsrc; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
830 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
831 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
832 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
833 #define ONE_PIXEL_BLEND(condition, widthvar) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
834 while (condition) { \ |
|
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
|
835 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
836 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
|
837 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
|
838 if(sA) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
839 unsigned short dstpixel = *((unsigned short *)dst); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
840 dR = (dstpixel >> 8) & 0xf8; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
841 dG = (dstpixel >> 3) & 0xfc; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
842 dB = (dstpixel << 3) & 0xf8; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
843 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
844 *((unsigned short *)dst) = ( \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
845 ((dR & 0xf8) << 8) | ((dG & 0xfc) << 3) | (dB >> 3) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
846 ); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
847 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
848 src += 4; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
849 dst += 2; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
850 widthvar--; \ |
|
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 ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
853 extrawidth = (width % 8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
854 valigner = VEC_ALIGNER(src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
855 vsrc = (vector unsigned char)vec_ld(0, src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
856 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
857 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
858 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
859 vector unsigned char vsrc1, vsrc2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
860 vector unsigned char vdst1, vdst2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
861 vector unsigned short vR, vG, vB; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
862 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
863 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
864 /* Load 8 pixels from src as ARGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
865 voverflow = (vector unsigned char)vec_ld(15, src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
866 vsrc = vec_perm(vsrc, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
867 vsrc1 = vec_perm(vsrc, vsrc, vpermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
868 src += 16; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
869 vsrc = (vector unsigned char)vec_ld(15, src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
870 voverflow = vec_perm(voverflow, vsrc, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
871 vsrc2 = vec_perm(voverflow, voverflow, vpermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
872 src += 16; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
873 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
874 /* Load 8 pixels from dst as XRGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
875 voverflow = vec_ld(0, dst); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
876 vR = vec_and((vector unsigned short)voverflow, vf800); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
877 vB = vec_sl((vector unsigned short)voverflow, v3_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
878 vG = vec_sl(vB, v2_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
879 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
|
880 vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
881 vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
882 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
|
883 vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
884 vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
885 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
886 /* Alpha blend 8 pixels as ARGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
887 valpha = vec_perm(vsrc1, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
888 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
|
889 valpha = vec_perm(vsrc2, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
890 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
|
891 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
892 /* Convert 8 pixels to 565 */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
893 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
|
894 vgpixel = (vector unsigned short)vec_perm(vdst1, vdst2, vgmerge); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
895 vgpixel = vec_and(vgpixel, vfc); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
896 vgpixel = vec_sl(vgpixel, v3_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
897 vrpixel = vec_sl(vpixel, v1_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
898 vrpixel = vec_and(vrpixel, vf800); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
899 vbpixel = vec_and(vpixel, v3f); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
900 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
|
901 vdst1 = vec_or(vdst1, (vector unsigned char)vbpixel); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
902 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
903 /* Store 8 pixels */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
904 vec_st(vdst1, 0, dst); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
905 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
906 width -= 8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
907 dst += 16; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
908 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
909 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
910 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
911 src += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
912 dst += dstskip; |
|
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 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
915 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
916 static void Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
917 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
918 unsigned alpha = info->src->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
919 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
920 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
921 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
922 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
923 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
924 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
925 SDL_PixelFormat *dstfmt = info->dst; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
926 unsigned sA = srcfmt->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
927 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
928 Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
929 Uint32 ckey = info->src->colorkey; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
930 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
931 vector unsigned char vsrcPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
932 vector unsigned char vdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
933 vector unsigned char vsdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
934 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
935 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
936 vector unsigned char vbits; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
937 vector unsigned char v0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
938 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
939 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
940 vector unsigned int vckey; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
941 vector unsigned int vrgbmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
942 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
943 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
944 v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
945 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
946 v8 = vec_splat_u16(8); |
|
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 /* set the alpha to 255 on the destination surf */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
949 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
950 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
951 vsrcPermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
952 vdstPermute = calc_swizzle32(NULL, dstfmt); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
953 vsdstPermute = calc_swizzle32(dstfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
954 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
955 /* set a vector full of alpha and 255-alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
956 ((unsigned char *)&valpha)[0] = alpha; |
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
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|
957 valpha = vec_splat(valpha, 0); |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
958 vbits = (vector unsigned char)vec_splat_s8(-1); |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
959 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
960 ckey &= rgbmask; |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
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|
961 ((unsigned int *)(char*)&vckey)[0] = ckey; |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
962 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
|
963 ((unsigned int *)(char*)&vrgbmask)[0] = rgbmask; |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
964 vrgbmask = vec_splat(vrgbmask, 0); |
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
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|
965 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
966 while(height--) { |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
967 int width = info->d_width; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
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|
968 #define ONE_PIXEL_BLEND(condition, widthvar) \ |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
969 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
|
970 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
971 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
|
972 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
|
973 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
|
974 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:
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diff
changeset
|
975 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
|
976 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
977 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
978 } \ |
|
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
|
979 dstp++; \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
980 srcp++; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
981 widthvar--; \ |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
982 } |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
983 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
984 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
985 int extrawidth = (width % 4); |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
986 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
987 vector unsigned char vs = (vector unsigned char)vec_ld(0, srcp); |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
988 width -= extrawidth; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
989 while (width) { |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
990 vector unsigned char vsel; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
991 vector unsigned char voverflow; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
992 vector unsigned char vd; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
993 vector unsigned char vd_orig; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
994 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
995 /* s = *srcp */ |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
996 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
997 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
998 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
999 /* vsel is set for items that match the key */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1000 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
|
1001 vsel = (vector unsigned char)vec_cmpeq((vector unsigned int)vsel, vckey); |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1002 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1003 /* permute to source format */ |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1004 vs = vec_perm(vs, valpha, vsrcPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1005 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1006 /* d = *dstp */ |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1007 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1008 vd_orig = vd = vec_perm(vd, v0, vsdstPermute); |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1009 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1010 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1011 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1012 /* set the alpha channel to full on */ |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1013 vd = vec_or(vd, valphamask); |
|
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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 /* mask out color key */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1016 vd = vec_sel(vd, vd_orig, vsel); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1017 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1018 /* permute to dest format */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1019 vd = vec_perm(vd, vbits, vdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1020 |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1021 /* *dstp = res */ |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1022 vec_st((vector unsigned int)vd, 0, dstp); |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1023 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1024 srcp += 4; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1025 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1026 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1027 vs = voverflow; |
|
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 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1030 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1031 #undef ONE_PIXEL_BLEND |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1032 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1033 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1034 dstp += dstskip; |
|
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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 } |
|
ffaaf7ecf685
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 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1039 static void Blit32to32PixelAlphaAltivec(SDL_BlitInfo *info) |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1040 { |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1041 int width = info->d_width; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1042 int height = info->d_height; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1043 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1044 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1045 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1046 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1047 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1048 SDL_PixelFormat *dstfmt = info->dst; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1049 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1050 vector unsigned char valphaPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1051 vector unsigned char vsrcPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1052 vector unsigned char vdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1053 vector unsigned char vsdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1054 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1055 vector unsigned char vpixelmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1056 vector unsigned char v0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1057 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1058 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1059 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1060 v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1061 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1062 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1063 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1064 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1065 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
|
1066 vpixelmask = vec_nor(valphamask, v0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1067 vsrcPermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1068 vdstPermute = calc_swizzle32(NULL, dstfmt); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1069 vsdstPermute = calc_swizzle32(dstfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1070 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1071 while ( height-- ) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1072 width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1073 #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
|
1074 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1075 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
|
1076 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
|
1077 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
|
1078 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
|
1079 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1080 ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1081 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1082 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1083 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1084 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1085 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1086 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1087 if (width > 0) { |
|
1487
dc6b59e925a2
Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents:
1456
diff
changeset
|
1088 /* vsrcPermute */ |
|
dc6b59e925a2
Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents:
1456
diff
changeset
|
1089 /* vdstPermute */ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1090 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1091 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1092 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
|
1093 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1094 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1095 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1096 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1097 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1098 vector unsigned char vdstalpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1099 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1100 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1101 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1102 vs = vec_perm(vs, v0, vsrcPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1103 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1104 valpha = vec_perm(vs, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1105 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1106 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1107 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1108 vd = vec_perm(vd, v0, vsdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1109 vdstalpha = vec_and(vd, valphamask); |
|
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 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1112 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1113 /* set the alpha to the dest alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1114 vd = vec_and(vd, vpixelmask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1115 vd = vec_or(vd, vdstalpha); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1116 vd = vec_perm(vd, v0, vdstPermute); |
|
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 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1119 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1120 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1121 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1122 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1123 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1124 vs = voverflow; |
|
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 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1127 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1128 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1129 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1130 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1131 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1132 } |
|
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 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1135 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1136 static void BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo *info) |
|
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 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1139 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1140 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1141 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1142 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1143 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1144 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1145 vector unsigned char valphaPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1146 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1147 vector unsigned char vpixelmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1148 vector unsigned char v0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1149 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1150 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1151 v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1152 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1153 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1154 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1155 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1156 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
|
1157 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1158 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1159 vpixelmask = vec_nor(valphamask, v0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1160 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1161 width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1162 #define ONE_PIXEL_BLEND(condition, widthvar) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1163 while ((condition)) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1164 Uint32 dalpha; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1165 Uint32 d; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1166 Uint32 s1; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1167 Uint32 d1; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1168 Uint32 s = *srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1169 Uint32 alpha = s >> 24; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1170 if(alpha) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1171 if(alpha == SDL_ALPHA_OPAQUE) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1172 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1173 } else { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1174 d = *dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1175 dalpha = d & 0xff000000; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1176 s1 = s & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1177 d1 = d & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1178 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1179 s &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1180 d &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1181 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1182 *dstp = d1 | d | dalpha; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1183 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1184 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1185 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1186 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1187 widthvar--; \ |
|
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 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1190 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1191 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1192 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1193 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
|
1194 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1195 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1196 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1197 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1198 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1199 vector unsigned char vdstalpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1200 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1201 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1202 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1203 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1204 valpha = vec_perm(vs, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1205 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1206 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1207 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1208 vdstalpha = vec_and(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1209 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1210 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1211 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1212 /* set the alpha to the dest alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1213 vd = vec_and(vd, vpixelmask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1214 vd = vec_or(vd, vdstalpha); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1215 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1216 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1217 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1218 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1219 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1220 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1221 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1222 vs = voverflow; |
|
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 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1225 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1226 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1227 dstp += dstskip; |
|
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 #undef ONE_PIXEL_BLEND |
|
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 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1232 static void Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo *info) |
|
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 /* XXX : 6 */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1235 unsigned alpha = info->src->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1236 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1237 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1238 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1239 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1240 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1241 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1242 SDL_PixelFormat *dstfmt = info->dst; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1243 unsigned sA = srcfmt->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1244 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1245 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1246 vector unsigned char vsrcPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1247 vector unsigned char vdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1248 vector unsigned char vsdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1249 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1250 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1251 vector unsigned char vbits; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1252 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1253 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1254 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1255 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1256 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1257 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1258 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1259 /* set the alpha to 255 on the destination surf */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1260 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1261 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1262 vsrcPermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1263 vdstPermute = calc_swizzle32(NULL, dstfmt); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1264 vsdstPermute = calc_swizzle32(dstfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1265 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1266 /* set a vector full of alpha and 255-alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1267 ((unsigned char *)&valpha)[0] = alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1268 valpha = vec_splat(valpha, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1269 vbits = (vector unsigned char)vec_splat_s8(-1); |
|
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 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1272 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1273 #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
|
1274 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1275 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
|
1276 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
|
1277 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
|
1278 ACCURATE_ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1279 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1280 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1281 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1282 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1283 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1284 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1285 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1286 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1287 vector unsigned char valigner = vec_lvsl(0, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1288 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
|
1289 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1290 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1291 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1292 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1293 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1294 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1295 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1296 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1297 vs = vec_perm(vs, valpha, vsrcPermute); |
|
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 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1300 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1301 vd = vec_perm(vd, vd, vsdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1302 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1303 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1304 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1305 /* set the alpha channel to full on */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1306 vd = vec_or(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1307 vd = vec_perm(vd, vbits, vdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1308 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1309 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1310 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1311 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1312 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1313 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1314 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1315 vs = voverflow; |
|
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 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1318 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1319 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1320 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1321 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1322 dstp += dstskip; |
|
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 |
|
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 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1327 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1328 /* fast RGB888->(A)RGB888 blending */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1329 static void BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo *info) |
|
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 unsigned alpha = info->src->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1332 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1333 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1334 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1335 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1336 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1337 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1338 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1339 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1340 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1341 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1342 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1343 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1344 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1345 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1346 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1347 /* set the alpha to 255 on the destination surf */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1348 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1349 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1350 /* set a vector full of alpha and 255-alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1351 ((unsigned char *)&valpha)[0] = alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1352 valpha = vec_splat(valpha, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1353 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1354 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1355 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1356 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1357 Uint32 s = *srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1358 Uint32 d = *dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1359 Uint32 s1 = s & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1360 Uint32 d1 = d & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1361 d1 = (d1 + ((s1 - d1) * alpha >> 8)) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1362 & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1363 s &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1364 d &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1365 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1366 *dstp = d1 | d | 0xff000000; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1367 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1368 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1369 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1370 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1371 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1372 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1373 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1374 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1375 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
|
1376 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1377 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1378 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1379 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1380 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1381 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1382 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1383 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1384 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1385 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1386 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1387 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1388 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
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 /* set the alpha channel to full on */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1391 vd = vec_or(vd, valphamask); |
|
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 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1394 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1395 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1396 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1397 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1398 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1399 vs = voverflow; |
|
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 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1402 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1403 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1404 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1405 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1406 dstp += dstskip; |
|
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 } |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
1409 #endif /* SDL_ALTIVEC_BLITTERS */ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1410 |
|
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
1411 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
1412 static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo *info) |
| 0 | 1413 { |
| 1414 int width = info->d_width; | |
| 1415 int height = info->d_height; | |
| 1416 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 1417 int srcskip = info->s_skip >> 2; | |
| 1418 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 1419 int dstskip = info->d_skip >> 2; | |
| 1420 | |
| 1421 while(height--) { | |
| 1422 DUFFS_LOOP4({ | |
|
1
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
1423 Uint32 s = *srcp++; |
|
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|
1424 Uint32 d = *dstp; |
|
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|
1425 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) |
|
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|
1426 + (s & d & 0x00010101)) | 0xff000000; |
| 0 | 1427 }, width); |
| 1428 srcp += srcskip; | |
| 1429 dstp += dstskip; | |
| 1430 } | |
| 1431 } | |
| 1432 | |
|
1
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|
1433 /* fast RGB888->(A)RGB888 blending with surface alpha */ |
|
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|
1434 static void BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo *info) |
|
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|
1435 { |
|
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|
1436 unsigned alpha = info->src->alpha; |
|
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|
1437 if(alpha == 128) { |
|
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|
1438 BlitRGBtoRGBSurfaceAlpha128(info); |
|
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|
1439 } else { |
|
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|
1440 int width = info->d_width; |
|
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|
1441 int height = info->d_height; |
|
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|
1442 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
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|
1443 int srcskip = info->s_skip >> 2; |
|
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|
1444 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
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|
1445 int dstskip = info->d_skip >> 2; |
|
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|
1446 Uint32 s; |
|
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|
1447 Uint32 d; |
|
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|
1448 Uint32 s1; |
|
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|
1449 Uint32 d1; |
|
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|
1450 |
|
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|
1451 while(height--) { |
|
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|
1452 DUFFS_LOOP_DOUBLE2({ |
|
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|
1453 /* One Pixel Blend */ |
|
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|
1454 s = *srcp; |
|
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|
1455 d = *dstp; |
|
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|
1456 s1 = s & 0xff00ff; |
|
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|
1457 d1 = d & 0xff00ff; |
|
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|
1458 d1 = (d1 + ((s1 - d1) * alpha >> 8)) |
|
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|
1459 & 0xff00ff; |
|
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|
1460 s &= 0xff00; |
|
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|
1461 d &= 0xff00; |
|
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|
1462 d = (d + ((s - d) * alpha >> 8)) & 0xff00; |
|
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|
1463 *dstp = d1 | d | 0xff000000; |
|
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|
1464 ++srcp; |
|
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|
1465 ++dstp; |
|
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|
1466 },{ |
|
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|
1467 /* Two Pixels Blend */ |
|
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|
1468 s = *srcp; |
|
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|
1469 d = *dstp; |
|
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|
1470 s1 = s & 0xff00ff; |
|
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1471 d1 = d & 0xff00ff; |
|
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|
1472 d1 += (s1 - d1) * alpha >> 8; |
|
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|
1473 d1 &= 0xff00ff; |
|
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1474 |
|
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1475 s = ((s & 0xff00) >> 8) | |
|
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|
1476 ((srcp[1] & 0xff00) << 8); |
|
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|
1477 d = ((d & 0xff00) >> 8) | |
|
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|
1478 ((dstp[1] & 0xff00) << 8); |
|
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|
1479 d += (s - d) * alpha >> 8; |
|
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|
1480 d &= 0x00ff00ff; |
|
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1481 |
|
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1482 *dstp++ = d1 | ((d << 8) & 0xff00) | 0xff000000; |
|
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1483 ++srcp; |
|
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1484 |
|
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1485 s1 = *srcp; |
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1486 d1 = *dstp; |
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|
1487 s1 &= 0xff00ff; |
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|
1488 d1 &= 0xff00ff; |
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|
1489 d1 += (s1 - d1) * alpha >> 8; |
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|
1490 d1 &= 0xff00ff; |
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1491 |
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1492 *dstp = d1 | ((d >> 8) & 0xff00) | 0xff000000; |
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1493 ++srcp; |
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1494 ++dstp; |
|
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|
1495 }, width); |
|
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|
1496 srcp += srcskip; |
|
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|
1497 dstp += dstskip; |
|
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|
1498 } |
|
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|
1499 } |
|
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|
1500 } |
|
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|
1501 |
| 0 | 1502 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
| 1503 static void BlitRGBtoRGBPixelAlpha(SDL_BlitInfo *info) | |
| 1504 { | |
| 1505 int width = info->d_width; | |
| 1506 int height = info->d_height; | |
| 1507 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 1508 int srcskip = info->s_skip >> 2; | |
| 1509 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 1510 int dstskip = info->d_skip >> 2; | |
| 1511 | |
| 1512 while(height--) { | |
| 1513 DUFFS_LOOP4({ | |
| 1514 Uint32 dalpha; | |
| 1515 Uint32 d; | |
| 1516 Uint32 s1; | |
| 1517 Uint32 d1; | |
| 1518 Uint32 s = *srcp; | |
| 1519 Uint32 alpha = s >> 24; | |
| 1520 /* FIXME: Here we special-case opaque alpha since the | |
| 1521 compositioning used (>>8 instead of /255) doesn't handle | |
| 1522 it correctly. Also special-case alpha=0 for speed? | |
| 1523 Benchmark this! */ | |
|
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1524 if(alpha) { |
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1525 if(alpha == SDL_ALPHA_OPAQUE) { |
| 0 | 1526 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); |
|
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1527 } else { |
| 0 | 1528 /* |
| 1529 * take out the middle component (green), and process | |
| 1530 * the other two in parallel. One multiply less. | |
| 1531 */ | |
| 1532 d = *dstp; | |
| 1533 dalpha = d & 0xff000000; | |
| 1534 s1 = s & 0xff00ff; | |
| 1535 d1 = d & 0xff00ff; | |
| 1536 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; | |
| 1537 s &= 0xff00; | |
| 1538 d &= 0xff00; | |
| 1539 d = (d + ((s - d) * alpha >> 8)) & 0xff00; | |
| 1540 *dstp = d1 | d | dalpha; | |
|
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1541 } |
| 0 | 1542 } |
| 1543 ++srcp; | |
| 1544 ++dstp; | |
| 1545 }, width); | |
| 1546 srcp += srcskip; | |
| 1547 dstp += dstskip; | |
| 1548 } | |
| 1549 } | |
| 1550 | |
| 1542 | 1551 #if GCC_ASMBLIT |
|
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1552 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ |
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1553 inline static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) |
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1554 { |
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1555 int width = info->d_width; |
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1556 int height = info->d_height; |
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1557 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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1558 int srcskip = info->s_skip >> 2; |
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1559 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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1560 int dstskip = info->d_skip >> 2; |
| 1542 | 1561 SDL_PixelFormat* sf = info->src; |
| 1562 Uint32 amask = sf->Amask; | |
|
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1563 |
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1564 __asm__ ( |
|
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1565 /* make mm6 all zeros. */ |
|
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1566 "pxor %%mm6, %%mm6\n" |
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1567 |
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1568 /* Make a mask to preserve the alpha. */ |
| 1542 | 1569 "movd %0, %%mm7\n\t" /* 0000F000 -> mm7 */ |
| 1570 "punpcklbw %%mm7, %%mm7\n\t" /* FF000000 -> mm7 */ | |
| 1571 "pcmpeqb %%mm4, %%mm4\n\t" /* FFFFFFFF -> mm4 */ | |
| 1572 "movq %%mm4, %%mm3\n\t" /* FFFFFFFF -> mm3 (for later) */ | |
| 1573 "pxor %%mm4, %%mm7\n\t" /* 00FFFFFF -> mm7 (mult mask) */ | |
|
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1574 |
| 1542 | 1575 /* form channel masks */ |
| 1576 "movq %%mm7, %%mm4\n\t" /* 00FFFFFF -> mm4 */ | |
| 1577 "packsswb %%mm6, %%mm4\n\t" /* 00000FFF -> mm4 (channel mask) */ | |
| 1578 "packsswb %%mm6, %%mm3\n\t" /* 0000FFFF -> mm3 */ | |
| 1579 "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */ | |
| 1580 | |
| 1581 /* get alpha channel shift */ | |
| 1582 "movd %1, %%mm5\n\t" /* Ashift -> mm5 */ | |
| 1583 | |
| 1584 : /* nothing */ : "m" (sf->Amask), "m" (sf->Ashift) ); | |
|
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1585 |
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1586 while(height--) { |
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1587 |
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1588 DUFFS_LOOP4({ |
| 1542 | 1589 Uint32 alpha; |
|
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1590 |
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1591 __asm__ ( |
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1592 "prefetch 64(%0)\n" |
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1593 "prefetch 64(%1)\n" |
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1594 : : "r" (srcp), "r" (dstp) ); |
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1595 |
| 1542 | 1596 alpha = *srcp & amask; |
|
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1597 /* FIXME: Here we special-case opaque alpha since the |
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1598 compositioning used (>>8 instead of /255) doesn't handle |
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1599 it correctly. Also special-case alpha=0 for speed? |
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1600 Benchmark this! */ |
| 1542 | 1601 if(alpha == 0) { |
| 1602 /* do nothing */ | |
| 1603 } | |
| 1604 else if(alpha == amask) { | |
| 1605 /* opaque alpha -- copy RGB, keep dst alpha */ | |
| 1606 /* using MMX here to free up regular registers for other things */ | |
| 1607 __asm__ ( | |
| 1608 "movd (%0), %%mm0\n\t" /* src(ARGB) -> mm0 (0000ARGB)*/ | |
| 1609 "movd (%1), %%mm1\n\t" /* dst(ARGB) -> mm1 (0000ARGB)*/ | |
| 1610 "pand %%mm4, %%mm0\n\t" /* src & chanmask -> mm0 */ | |
| 1611 "pand %%mm3, %%mm1\n\t" /* dst & ~chanmask -> mm2 */ | |
| 1612 "por %%mm0, %%mm1\n\t" /* src | dst -> mm1 */ | |
| 1613 "movd %%mm1, (%1) \n\t" /* mm1 -> dst */ | |
| 1614 | |
| 1615 : : "r" (srcp), "r" (dstp) ); | |
|
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1616 } |
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1617 |
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1618 else { |
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1619 __asm__ ( |
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1620 /* load in the source, and dst. */ |
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1621 "movd (%0), %%mm0\n" /* mm0(s) = 0 0 0 0 | As Rs Gs Bs */ |
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1622 "movd (%1), %%mm1\n" /* mm1(d) = 0 0 0 0 | Ad Rd Gd Bd */ |
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1623 |
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1624 /* Move the src alpha into mm2 */ |
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1625 |
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1626 /* if supporting pshufw */ |
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1627 /*"pshufw $0x55, %%mm0, %%mm2\n" */ /* mm2 = 0 As 0 As | 0 As 0 As */ |
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1628 /*"psrlw $8, %%mm2\n" */ |
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1629 |
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1630 /* else: */ |
| 1542 | 1631 "movd %2, %%mm2\n" |
| 1632 "psrld %%mm5, %%mm2\n" /* mm2 = 0 0 0 0 | 0 0 0 As */ | |
|
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1633 "punpcklwd %%mm2, %%mm2\n" /* mm2 = 0 0 0 0 | 0 As 0 As */ |
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1634 "punpckldq %%mm2, %%mm2\n" /* mm2 = 0 As 0 As | 0 As 0 As */ |
| 1542 | 1635 "pand %%mm7, %%mm2\n" /* to preserve dest alpha */ |
|
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1636 |
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1637 /* move the colors into words. */ |
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1638 "punpcklbw %%mm6, %%mm0\n" /* mm0 = 0 As 0 Rs | 0 Gs 0 Bs */ |
|
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1639 "punpcklbw %%mm6, %%mm1\n" /* mm0 = 0 Ad 0 Rd | 0 Gd 0 Bd */ |
|
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1640 |
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1641 /* src - dst */ |
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1642 "psubw %%mm1, %%mm0\n" /* mm0 = As-Ad Rs-Rd | Gs-Gd Bs-Bd */ |
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1643 |
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1644 /* A * (src-dst) */ |
| 1542 | 1645 "pmullw %%mm2, %%mm0\n" /* mm0 = 0*As-d As*Rs-d | As*Gs-d As*Bs-d */ |
| 1646 "psrlw $8, %%mm0\n" /* mm0 = 0>>8 Rc>>8 | Gc>>8 Bc>>8 */ | |
| 1647 "paddb %%mm1, %%mm0\n" /* mm0 = 0+Ad Rc+Rd | Gc+Gd Bc+Bd */ | |
|
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1648 |
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1649 "packuswb %%mm0, %%mm0\n" /* mm0 = | Ac Rc Gc Bc */ |
|
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1650 |
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1651 "movd %%mm0, (%1)\n" /* result in mm0 */ |
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1652 |
| 1542 | 1653 : : "r" (srcp), "r" (dstp), "r" (alpha) ); |
|
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1654 |
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1655 } |
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1656 ++srcp; |
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1657 ++dstp; |
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1658 }, width); |
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1659 srcp += srcskip; |
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1660 dstp += dstskip; |
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1661 } |
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1662 |
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1663 __asm__ ( |
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1664 "emms\n" |
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1665 : ); |
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1666 } |
| 1542 | 1667 /* End GCC_ASMBLIT*/ |
| 1668 | |
| 1669 #elif MSVC_ASMBLIT | |
| 1670 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ | |
| 1671 static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) | |
| 1672 { | |
| 1673 int width = info->d_width; | |
| 1674 int height = info->d_height; | |
| 1675 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 1676 int srcskip = info->s_skip >> 2; | |
| 1677 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 1678 int dstskip = info->d_skip >> 2; | |
| 1679 SDL_PixelFormat* sf = info->src; | |
| 1680 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; | |
| 1681 Uint32 amask = sf->Amask; | |
| 1682 Uint32 ashift = sf->Ashift; | |
| 1683 Uint64 multmask; | |
| 1684 | |
| 1685 __m64 src1, dst1, mm_alpha, mm_zero, dmask; | |
| 1686 | |
| 1687 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ | |
| 1688 multmask = ~(0xFFFFi64 << (ashift * 2)); | |
| 1689 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ | |
| 1690 | |
| 1691 while(height--) { | |
| 1692 DUFFS_LOOP4({ | |
| 1693 Uint32 alpha; | |
| 1694 | |
| 1695 _m_prefetch(srcp + 16); | |
| 1696 _m_prefetch(dstp + 16); | |
| 1697 | |
| 1698 alpha = *srcp & amask; | |
| 1699 if (alpha == 0) { | |
| 1700 /* do nothing */ | |
| 1701 } else if (alpha == amask) { | |
| 1702 /* copy RGB, keep dst alpha */ | |
| 1703 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask); | |
| 1704 } else { | |
| 1705 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/ | |
| 1706 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */ | |
| 1707 | |
| 1708 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ | |
| 1709 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ | |
| 1710 | |
| 1711 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */ | |
| 1712 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */ | |
| 1713 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 1714 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 1715 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */ | |
| 1716 | |
| 1717 /* blend */ | |
| 1718 src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */ | |
| 1719 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */ | |
| 1720 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */ | |
| 1721 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */ | |
| 1722 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ | |
| 1723 | |
| 1724 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ | |
| 1725 } | |
| 1726 ++srcp; | |
| 1727 ++dstp; | |
| 1728 }, width); | |
| 1729 srcp += srcskip; | |
| 1730 dstp += dstskip; | |
| 1731 } | |
| 1732 _mm_empty(); | |
| 1733 } | |
| 1734 /* End MSVC_ASMBLIT */ | |
| 1735 | |
| 1736 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ | |
|
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1737 |
|
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1738 /* 16bpp special case for per-surface alpha=50%: blend 2 pixels in parallel */ |
|
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1739 |
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1740 /* blend a single 16 bit pixel at 50% */ |
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1741 #define BLEND16_50(d, s, mask) \ |
|
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1742 ((((s & mask) + (d & mask)) >> 1) + (s & d & (~mask & 0xffff))) |
|
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1743 |
|
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1744 /* blend two 16 bit pixels at 50% */ |
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1745 #define BLEND2x16_50(d, s, mask) \ |
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1746 (((s & (mask | mask << 16)) >> 1) + ((d & (mask | mask << 16)) >> 1) \ |
|
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1747 + (s & d & (~(mask | mask << 16)))) |
|
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1748 |
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|
1749 static void Blit16to16SurfaceAlpha128(SDL_BlitInfo *info, Uint16 mask) |
| 0 | 1750 { |
| 1751 int width = info->d_width; | |
| 1752 int height = info->d_height; | |
| 1753 Uint16 *srcp = (Uint16 *)info->s_pixels; | |
| 1754 int srcskip = info->s_skip >> 1; | |
| 1755 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 1756 int dstskip = info->d_skip >> 1; | |
| 1757 | |
| 1758 while(height--) { | |
|
1456
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1759 if(((uintptr_t)srcp ^ (uintptr_t)dstp) & 2) { |
|
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1760 /* |
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1761 * Source and destination not aligned, pipeline it. |
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1762 * This is mostly a win for big blits but no loss for |
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1763 * small ones |
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1764 */ |
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1765 Uint32 prev_sw; |
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1766 int w = width; |
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1767 |
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1768 /* handle odd destination */ |
|
1456
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1769 if((uintptr_t)dstp & 2) { |
|
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1770 Uint16 d = *dstp, s = *srcp; |
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1771 *dstp = BLEND16_50(d, s, mask); |
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1772 dstp++; |
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1773 srcp++; |
|
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1774 w--; |
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1775 } |
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|
1776 srcp++; /* srcp is now 32-bit aligned */ |
|
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|
1777 |
|
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|
1778 /* bootstrap pipeline with first halfword */ |
|
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|
1779 prev_sw = ((Uint32 *)srcp)[-1]; |
|
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1780 |
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|
1781 while(w > 1) { |
|
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|
1782 Uint32 sw, dw, s; |
|
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|
1783 sw = *(Uint32 *)srcp; |
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|
1784 dw = *(Uint32 *)dstp; |
|
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|
1785 #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
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|
1786 s = (prev_sw << 16) + (sw >> 16); |
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|
1787 #else |
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|
1788 s = (prev_sw >> 16) + (sw << 16); |
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|
1789 #endif |
|
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1790 prev_sw = sw; |
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1791 *(Uint32 *)dstp = BLEND2x16_50(dw, s, mask); |
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1792 dstp += 2; |
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1793 srcp += 2; |
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1794 w -= 2; |
|
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|
1795 } |
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|
1796 |
|
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|
1797 /* final pixel if any */ |
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1798 if(w) { |
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|
1799 Uint16 d = *dstp, s; |
|
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1800 #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
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|
1801 s = (Uint16)prev_sw; |
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1802 #else |
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1803 s = (Uint16)(prev_sw >> 16); |
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1804 #endif |
|
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1805 *dstp = BLEND16_50(d, s, mask); |
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1806 srcp++; |
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1807 dstp++; |
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1808 } |
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|
1809 srcp += srcskip - 1; |
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1810 dstp += dstskip; |
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1811 } else { |
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1812 /* source and destination are aligned */ |
|
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1813 int w = width; |
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1814 |
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1815 /* first odd pixel? */ |
|
1456
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1816 if((uintptr_t)srcp & 2) { |
|
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1817 Uint16 d = *dstp, s = *srcp; |
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1818 *dstp = BLEND16_50(d, s, mask); |
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1819 srcp++; |
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1820 dstp++; |
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1821 w--; |
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1822 } |
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1823 /* srcp and dstp are now 32-bit aligned */ |
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1824 |
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1825 while(w > 1) { |
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1826 Uint32 sw = *(Uint32 *)srcp; |
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1827 Uint32 dw = *(Uint32 *)dstp; |
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1828 *(Uint32 *)dstp = BLEND2x16_50(dw, sw, mask); |
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1829 srcp += 2; |
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1830 dstp += 2; |
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1831 w -= 2; |
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1832 } |
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1833 |
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1834 /* last odd pixel? */ |
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1835 if(w) { |
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1836 Uint16 d = *dstp, s = *srcp; |
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1837 *dstp = BLEND16_50(d, s, mask); |
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1838 srcp++; |
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1839 dstp++; |
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1840 } |
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|
1841 srcp += srcskip; |
|
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1842 dstp += dstskip; |
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1843 } |
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1844 } |
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1845 } |
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1846 |
| 1542 | 1847 #if GCC_ASMBLIT |
|
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1848 /* fast RGB565->RGB565 blending with surface alpha */ |
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1849 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) |
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1850 { |
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1851 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
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1852 if(alpha == 128) { |
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1853 Blit16to16SurfaceAlpha128(info, 0xf7de); |
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1854 } else { |
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1855 int width = info->d_width; |
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1856 int height = info->d_height; |
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1857 Uint16 *srcp = (Uint16 *)info->s_pixels; |
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1858 int srcskip = info->s_skip >> 1; |
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1859 Uint16 *dstp = (Uint16 *)info->d_pixels; |
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1860 int dstskip = info->d_skip >> 1; |
| 1542 | 1861 Uint32 s, d; |
| 1862 Uint8 load[8]; | |
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1863 |
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1864 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
| 1542 | 1865 *(Uint64 *)load = alpha; |
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1866 alpha >>= 3; /* downscale alpha to 5 bits */ |
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1867 |
| 1542 | 1868 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */ |
| 1869 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ | |
| 1870 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ | |
| 1871 /* position alpha to allow for mullo and mulhi on diff channels | |
| 1872 to reduce the number of operations */ | |
| 1873 psllq_i2r(3, mm0); | |
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1874 |
| 1542 | 1875 /* Setup the 565 color channel masks */ |
|
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1876 *(Uint64 *)load = 0x07E007E007E007E0ULL; |
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1877 movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */ |
|
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1878 *(Uint64 *)load = 0x001F001F001F001FULL; |
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1879 movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */ |
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1880 while(height--) { |
| 1542 | 1881 DUFFS_LOOP_QUATRO2( |
| 1882 { | |
| 1883 s = *srcp++; | |
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1884 d = *dstp; |
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1885 /* |
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1886 * shift out the middle component (green) to |
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1887 * the high 16 bits, and process all three RGB |
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1888 * components at the same time. |
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1889 */ |
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1890 s = (s | s << 16) & 0x07e0f81f; |
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1891 d = (d | d << 16) & 0x07e0f81f; |
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1892 d += (s - d) * alpha >> 5; |
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1893 d &= 0x07e0f81f; |
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1894 *dstp++ = d | d >> 16; |
| 1542 | 1895 },{ |
| 1896 s = *srcp++; | |
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1897 d = *dstp; |
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1898 /* |
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1899 * shift out the middle component (green) to |
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1900 * the high 16 bits, and process all three RGB |
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1901 * components at the same time. |
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1902 */ |
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1903 s = (s | s << 16) & 0x07e0f81f; |
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1904 d = (d | d << 16) & 0x07e0f81f; |
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1905 d += (s - d) * alpha >> 5; |
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1906 d &= 0x07e0f81f; |
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1907 *dstp++ = d | d >> 16; |
| 1542 | 1908 s = *srcp++; |
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1909 d = *dstp; |
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1910 /* |
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1911 * shift out the middle component (green) to |
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1912 * the high 16 bits, and process all three RGB |
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1913 * components at the same time. |
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1914 */ |
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1915 s = (s | s << 16) & 0x07e0f81f; |
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1916 d = (d | d << 16) & 0x07e0f81f; |
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1917 d += (s - d) * alpha >> 5; |
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1918 d &= 0x07e0f81f; |
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1919 *dstp++ = d | d >> 16; |
| 1542 | 1920 },{ |
| 1921 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */ | |
| 1922 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */ | |
| 1923 | |
| 1924 /* red -- does not need a mask since the right shift clears | |
| 1925 the uninteresting bits */ | |
| 1926 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 1927 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 1928 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 [000r 000r 000r 000r] */ | |
| 1929 psrlw_i2r(11, mm6); /* mm6 >> 11 -> mm6 [000r 000r 000r 000r] */ | |
| 1930 | |
| 1931 /* blend */ | |
| 1932 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 1933 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 1934 /* alpha used is actually 11 bits | |
| 1935 11 + 5 = 16 bits, so the sign bits are lost */ | |
| 1936 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ | |
| 1937 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 1938 psllw_i2r(11, mm6); /* mm6 << 11 -> mm6 */ | |
| 1939 | |
| 1940 movq_r2r(mm6, mm1); /* save new reds in dsts */ | |
| 1941 | |
| 1942 /* green -- process the bits in place */ | |
| 1943 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 1944 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 1945 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */ | |
| 1946 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */ | |
| 1947 | |
| 1948 /* blend */ | |
| 1949 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 1950 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 1951 /* 11 + 11 - 16 = 6 bits, so all the lower uninteresting | |
| 1952 bits are gone and the sign bits present */ | |
| 1953 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ | |
| 1954 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 1955 | |
| 1956 por_r2r(mm6, mm1); /* save new greens in dsts */ | |
| 1957 | |
| 1958 /* blue */ | |
| 1959 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 1960 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 1961 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */ | |
| 1962 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 1963 | |
| 1964 /* blend */ | |
| 1965 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 1966 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 1967 /* 11 + 5 = 16 bits, so the sign bits are lost and | |
| 1968 the interesting bits will need to be MASKed */ | |
| 1969 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ | |
| 1970 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 1971 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 1972 | |
| 1973 por_r2r(mm6, mm1); /* save new blues in dsts */ | |
| 1974 | |
| 1975 movq_r2m(mm1, *dstp); /* mm1 -> 4 dst pixels */ | |
| 1976 | |
| 1977 srcp += 4; | |
| 1978 dstp += 4; | |
| 1979 }, width); | |
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1980 srcp += srcskip; |
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1981 dstp += dstskip; |
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1982 } |
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1983 emms(); |
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1984 } |
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1985 } |
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1986 |
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1987 /* fast RGB555->RGB555 blending with surface alpha */ |
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1988 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) |
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1989 { |
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1990 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
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1991 if(alpha == 128) { |
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1992 Blit16to16SurfaceAlpha128(info, 0xfbde); |
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1993 } else { |
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1994 int width = info->d_width; |
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1995 int height = info->d_height; |
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1996 Uint16 *srcp = (Uint16 *)info->s_pixels; |
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1997 int srcskip = info->s_skip >> 1; |
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1998 Uint16 *dstp = (Uint16 *)info->d_pixels; |
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1999 int dstskip = info->d_skip >> 1; |
| 1542 | 2000 Uint32 s, d; |
| 2001 Uint8 load[8]; | |
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2002 |
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2003 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
| 1542 | 2004 *(Uint64 *)load = alpha; |
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2005 alpha >>= 3; /* downscale alpha to 5 bits */ |
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2006 |
| 1542 | 2007 movq_m2r(*load, mm0); /* alpha(0000000A) -> mm0 */ |
| 2008 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ | |
| 2009 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ | |
| 2010 /* position alpha to allow for mullo and mulhi on diff channels | |
| 2011 to reduce the number of operations */ | |
| 2012 psllq_i2r(3, mm0); | |
| 2013 | |
| 2014 /* Setup the 555 color channel masks */ | |
|
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2015 *(Uint64 *)load = 0x03E003E003E003E0ULL; |
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2016 movq_m2r(*load, mm4); /* MASKGREEN -> mm4 */ |
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2017 *(Uint64 *)load = 0x001F001F001F001FULL; |
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2018 movq_m2r(*load, mm7); /* MASKBLUE -> mm7 */ |
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2019 while(height--) { |
| 1542 | 2020 DUFFS_LOOP_QUATRO2( |
| 2021 { | |
| 2022 s = *srcp++; | |
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2023 d = *dstp; |
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2024 /* |
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2025 * shift out the middle component (green) to |
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2026 * the high 16 bits, and process all three RGB |
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2027 * components at the same time. |
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2028 */ |
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2029 s = (s | s << 16) & 0x03e07c1f; |
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2030 d = (d | d << 16) & 0x03e07c1f; |
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2031 d += (s - d) * alpha >> 5; |
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2032 d &= 0x03e07c1f; |
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2033 *dstp++ = d | d >> 16; |
| 1542 | 2034 },{ |
| 2035 s = *srcp++; | |
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2036 d = *dstp; |
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2037 /* |
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2038 * shift out the middle component (green) to |
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2039 * the high 16 bits, and process all three RGB |
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2040 * components at the same time. |
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2041 */ |
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2042 s = (s | s << 16) & 0x03e07c1f; |
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2043 d = (d | d << 16) & 0x03e07c1f; |
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2044 d += (s - d) * alpha >> 5; |
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2045 d &= 0x03e07c1f; |
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2046 *dstp++ = d | d >> 16; |
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2047 s = *srcp++; |
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2048 d = *dstp; |
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2049 /* |
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2050 * shift out the middle component (green) to |
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2051 * the high 16 bits, and process all three RGB |
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2052 * components at the same time. |
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2053 */ |
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2054 s = (s | s << 16) & 0x03e07c1f; |
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2055 d = (d | d << 16) & 0x03e07c1f; |
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2056 d += (s - d) * alpha >> 5; |
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2057 d &= 0x03e07c1f; |
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2058 *dstp++ = d | d >> 16; |
| 1542 | 2059 },{ |
| 2060 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */ | |
| 2061 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */ | |
| 2062 | |
| 2063 /* red -- process the bits in place */ | |
| 2064 psllq_i2r(5, mm4); /* turn MASKGREEN into MASKRED */ | |
| 2065 /* by reusing the GREEN mask we free up another mmx | |
| 2066 register to accumulate the result */ | |
| 2067 | |
| 2068 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 2069 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 2070 pand_r2r(mm4, mm5); /* src & MASKRED -> mm5 */ | |
| 2071 pand_r2r(mm4, mm6); /* dst & MASKRED -> mm6 */ | |
| 2072 | |
| 2073 /* blend */ | |
| 2074 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 2075 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 2076 /* 11 + 15 - 16 = 10 bits, uninteresting bits will be | |
| 2077 cleared by a MASK below */ | |
| 2078 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ | |
| 2079 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 2080 pand_r2r(mm4, mm6); /* mm6 & MASKRED -> mm6 */ | |
| 2081 | |
| 2082 psrlq_i2r(5, mm4); /* turn MASKRED back into MASKGREEN */ | |
| 2083 | |
| 2084 movq_r2r(mm6, mm1); /* save new reds in dsts */ | |
| 2085 | |
| 2086 /* green -- process the bits in place */ | |
| 2087 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 2088 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 2089 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */ | |
| 2090 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */ | |
| 2091 | |
| 2092 /* blend */ | |
| 2093 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 2094 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 2095 /* 11 + 10 - 16 = 5 bits, so all the lower uninteresting | |
| 2096 bits are gone and the sign bits present */ | |
| 2097 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ | |
| 2098 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 2099 | |
| 2100 por_r2r(mm6, mm1); /* save new greens in dsts */ | |
| 2101 | |
| 2102 /* blue */ | |
| 2103 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 2104 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 2105 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */ | |
| 2106 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 2107 | |
| 2108 /* blend */ | |
| 2109 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 2110 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 2111 /* 11 + 5 = 16 bits, so the sign bits are lost and | |
| 2112 the interesting bits will need to be MASKed */ | |
| 2113 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ | |
| 2114 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 2115 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 2116 | |
| 2117 por_r2r(mm6, mm1); /* save new blues in dsts */ | |
| 2118 | |
| 2119 movq_r2m(mm1, *dstp);/* mm1 -> 4 dst pixels */ | |
| 2120 | |
| 2121 srcp += 4; | |
| 2122 dstp += 4; | |
| 2123 }, width); | |
|
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2124 srcp += srcskip; |
|
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2125 dstp += dstskip; |
|
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|
2126 } |
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2127 emms(); |
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2128 } |
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|
2129 } |
| 1542 | 2130 /* End GCC_ASMBLIT */ |
| 2131 | |
| 2132 #elif MSVC_ASMBLIT | |
| 2133 /* fast RGB565->RGB565 blending with surface alpha */ | |
| 2134 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) | |
| 2135 { | |
| 2136 unsigned alpha = info->src->alpha; | |
| 2137 if(alpha == 128) { | |
| 2138 Blit16to16SurfaceAlpha128(info, 0xf7de); | |
| 2139 } else { | |
| 2140 int width = info->d_width; | |
| 2141 int height = info->d_height; | |
| 2142 Uint16 *srcp = (Uint16 *)info->s_pixels; | |
| 2143 int srcskip = info->s_skip >> 1; | |
| 2144 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2145 int dstskip = info->d_skip >> 1; | |
| 2146 Uint32 s, d; | |
| 2147 | |
| 2148 __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha; | |
| 2149 | |
| 2150 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ | |
| 2151 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ | |
| 2152 alpha >>= 3; /* downscale alpha to 5 bits */ | |
| 2153 | |
| 2154 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 2155 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 2156 /* position alpha to allow for mullo and mulhi on diff channels | |
| 2157 to reduce the number of operations */ | |
| 2158 mm_alpha = _mm_slli_si64(mm_alpha, 3); | |
| 2159 | |
| 2160 /* Setup the 565 color channel masks */ | |
| 2161 gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */ | |
| 2162 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ | |
| 2163 | |
| 2164 while(height--) { | |
| 2165 DUFFS_LOOP_QUATRO2( | |
| 2166 { | |
| 2167 s = *srcp++; | |
| 2168 d = *dstp; | |
| 2169 /* | |
| 2170 * shift out the middle component (green) to | |
| 2171 * the high 16 bits, and process all three RGB | |
| 2172 * components at the same time. | |
| 2173 */ | |
| 2174 s = (s | s << 16) & 0x07e0f81f; | |
| 2175 d = (d | d << 16) & 0x07e0f81f; | |
| 2176 d += (s - d) * alpha >> 5; | |
| 2177 d &= 0x07e0f81f; | |
|
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|
2178 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2179 },{ |
| 2180 s = *srcp++; | |
| 2181 d = *dstp; | |
| 2182 /* | |
| 2183 * shift out the middle component (green) to | |
| 2184 * the high 16 bits, and process all three RGB | |
| 2185 * components at the same time. | |
| 2186 */ | |
| 2187 s = (s | s << 16) & 0x07e0f81f; | |
| 2188 d = (d | d << 16) & 0x07e0f81f; | |
| 2189 d += (s - d) * alpha >> 5; | |
| 2190 d &= 0x07e0f81f; | |
|
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|
2191 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2192 s = *srcp++; |
| 2193 d = *dstp; | |
| 2194 /* | |
| 2195 * shift out the middle component (green) to | |
| 2196 * the high 16 bits, and process all three RGB | |
| 2197 * components at the same time. | |
| 2198 */ | |
| 2199 s = (s | s << 16) & 0x07e0f81f; | |
| 2200 d = (d | d << 16) & 0x07e0f81f; | |
| 2201 d += (s - d) * alpha >> 5; | |
| 2202 d &= 0x07e0f81f; | |
|
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|
2203 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2204 },{ |
| 2205 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */ | |
| 2206 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */ | |
| 2207 | |
| 2208 /* red */ | |
| 2209 src2 = src1; | |
| 2210 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 [000r 000r 000r 000r] */ | |
| 2211 | |
| 2212 dst2 = dst1; | |
| 2213 dst2 = _mm_srli_pi16(dst2, 11); /* dst2 >> 11 -> dst2 [000r 000r 000r 000r] */ | |
| 2214 | |
| 2215 /* blend */ | |
| 2216 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2217 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2218 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ | |
| 2219 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2220 dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */ | |
| 2221 | |
| 2222 mm_res = dst2; /* RED -> mm_res */ | |
| 2223 | |
| 2224 /* green -- process the bits in place */ | |
| 2225 src2 = src1; | |
| 2226 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */ | |
| 2227 | |
| 2228 dst2 = dst1; | |
| 2229 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */ | |
| 2230 | |
| 2231 /* blend */ | |
| 2232 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2233 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2234 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ | |
| 2235 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2236 | |
| 2237 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */ | |
| 2238 | |
| 2239 /* blue */ | |
| 2240 src2 = src1; | |
| 2241 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */ | |
| 2242 | |
| 2243 dst2 = dst1; | |
| 2244 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */ | |
| 2245 | |
| 2246 /* blend */ | |
| 2247 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2248 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2249 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ | |
| 2250 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2251 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */ | |
| 2252 | |
| 2253 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */ | |
| 2254 | |
| 2255 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */ | |
| 2256 | |
| 2257 srcp += 4; | |
| 2258 dstp += 4; | |
| 2259 }, width); | |
| 2260 srcp += srcskip; | |
| 2261 dstp += dstskip; | |
| 2262 } | |
| 2263 _mm_empty(); | |
| 2264 } | |
| 2265 } | |
| 2266 | |
| 2267 /* fast RGB555->RGB555 blending with surface alpha */ | |
| 2268 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) | |
| 2269 { | |
| 2270 unsigned alpha = info->src->alpha; | |
| 2271 if(alpha == 128) { | |
| 2272 Blit16to16SurfaceAlpha128(info, 0xfbde); | |
| 2273 } else { | |
| 2274 int width = info->d_width; | |
| 2275 int height = info->d_height; | |
| 2276 Uint16 *srcp = (Uint16 *)info->s_pixels; | |
| 2277 int srcskip = info->s_skip >> 1; | |
| 2278 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2279 int dstskip = info->d_skip >> 1; | |
| 2280 Uint32 s, d; | |
| 2281 | |
| 2282 __m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha; | |
| 2283 | |
| 2284 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ | |
| 2285 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ | |
| 2286 alpha >>= 3; /* downscale alpha to 5 bits */ | |
| 2287 | |
| 2288 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 2289 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 2290 /* position alpha to allow for mullo and mulhi on diff channels | |
| 2291 to reduce the number of operations */ | |
| 2292 mm_alpha = _mm_slli_si64(mm_alpha, 3); | |
| 2293 | |
| 2294 /* Setup the 555 color channel masks */ | |
| 2295 rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */ | |
| 2296 gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */ | |
| 2297 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ | |
| 2298 | |
| 2299 while(height--) { | |
| 2300 DUFFS_LOOP_QUATRO2( | |
| 2301 { | |
| 2302 s = *srcp++; | |
| 2303 d = *dstp; | |
| 2304 /* | |
| 2305 * shift out the middle component (green) to | |
| 2306 * the high 16 bits, and process all three RGB | |
| 2307 * components at the same time. | |
| 2308 */ | |
| 2309 s = (s | s << 16) & 0x03e07c1f; | |
| 2310 d = (d | d << 16) & 0x03e07c1f; | |
| 2311 d += (s - d) * alpha >> 5; | |
| 2312 d &= 0x03e07c1f; | |
|
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2313 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2314 },{ |
| 2315 s = *srcp++; | |
| 2316 d = *dstp; | |
| 2317 /* | |
| 2318 * shift out the middle component (green) to | |
| 2319 * the high 16 bits, and process all three RGB | |
| 2320 * components at the same time. | |
| 2321 */ | |
| 2322 s = (s | s << 16) & 0x03e07c1f; | |
| 2323 d = (d | d << 16) & 0x03e07c1f; | |
| 2324 d += (s - d) * alpha >> 5; | |
| 2325 d &= 0x03e07c1f; | |
|
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2326 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2327 s = *srcp++; |
| 2328 d = *dstp; | |
| 2329 /* | |
| 2330 * shift out the middle component (green) to | |
| 2331 * the high 16 bits, and process all three RGB | |
| 2332 * components at the same time. | |
| 2333 */ | |
| 2334 s = (s | s << 16) & 0x03e07c1f; | |
| 2335 d = (d | d << 16) & 0x03e07c1f; | |
| 2336 d += (s - d) * alpha >> 5; | |
| 2337 d &= 0x03e07c1f; | |
|
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|
2338 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2339 },{ |
| 2340 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */ | |
| 2341 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */ | |
| 2342 | |
| 2343 /* red -- process the bits in place */ | |
| 2344 src2 = src1; | |
| 2345 src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */ | |
| 2346 | |
| 2347 dst2 = dst1; | |
| 2348 dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */ | |
| 2349 | |
| 2350 /* blend */ | |
| 2351 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2352 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2353 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ | |
| 2354 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2355 dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */ | |
| 2356 | |
| 2357 mm_res = dst2; /* RED -> mm_res */ | |
| 2358 | |
| 2359 /* green -- process the bits in place */ | |
| 2360 src2 = src1; | |
| 2361 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */ | |
| 2362 | |
| 2363 dst2 = dst1; | |
| 2364 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */ | |
| 2365 | |
| 2366 /* blend */ | |
| 2367 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2368 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2369 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ | |
| 2370 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2371 | |
| 2372 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */ | |
| 2373 | |
| 2374 /* blue */ | |
| 2375 src2 = src1; /* src -> src2 */ | |
| 2376 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */ | |
| 2377 | |
| 2378 dst2 = dst1; /* dst -> dst2 */ | |
| 2379 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */ | |
| 2380 | |
| 2381 /* blend */ | |
| 2382 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2383 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2384 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ | |
| 2385 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2386 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */ | |
| 2387 | |
| 2388 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */ | |
| 2389 | |
| 2390 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */ | |
| 2391 | |
| 2392 srcp += 4; | |
| 2393 dstp += 4; | |
| 2394 }, width); | |
| 2395 srcp += srcskip; | |
| 2396 dstp += dstskip; | |
| 2397 } | |
| 2398 _mm_empty(); | |
| 2399 } | |
| 2400 } | |
| 2401 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ | |
|
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2402 |
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2403 /* fast RGB565->RGB565 blending with surface alpha */ |
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2404 static void Blit565to565SurfaceAlpha(SDL_BlitInfo *info) |
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2405 { |
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2406 unsigned alpha = info->src->alpha; |
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2407 if(alpha == 128) { |
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2408 Blit16to16SurfaceAlpha128(info, 0xf7de); |
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2409 } else { |
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2410 int width = info->d_width; |
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2411 int height = info->d_height; |
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2412 Uint16 *srcp = (Uint16 *)info->s_pixels; |
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diff
changeset
|
2413 int srcskip = info->s_skip >> 1; |
|
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Changes since SDL 1.2.0 release
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0
diff
changeset
|
2414 Uint16 *dstp = (Uint16 *)info->d_pixels; |
|
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0
diff
changeset
|
2415 int dstskip = info->d_skip >> 1; |
|
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Changes since SDL 1.2.0 release
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diff
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|
2416 alpha >>= 3; /* downscale alpha to 5 bits */ |
|
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Changes since SDL 1.2.0 release
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parents:
0
diff
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|
2417 |
|
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diff
changeset
|
2418 while(height--) { |
|
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parents:
0
diff
changeset
|
2419 DUFFS_LOOP4({ |
|
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Changes since SDL 1.2.0 release
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0
diff
changeset
|
2420 Uint32 s = *srcp++; |
|
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Changes since SDL 1.2.0 release
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0
diff
changeset
|
2421 Uint32 d = *dstp; |
|
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diff
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|
2422 /* |
|
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Changes since SDL 1.2.0 release
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diff
changeset
|
2423 * shift out the middle component (green) to |
|
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Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2424 * the high 16 bits, and process all three RGB |
|
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parents:
0
diff
changeset
|
2425 * components at the same time. |
|
cf2af46e9e2a
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diff
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|
2426 */ |
|
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Changes since SDL 1.2.0 release
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diff
changeset
|
2427 s = (s | s << 16) & 0x07e0f81f; |
|
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0
diff
changeset
|
2428 d = (d | d << 16) & 0x07e0f81f; |
|
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diff
changeset
|
2429 d += (s - d) * alpha >> 5; |
|
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Changes since SDL 1.2.0 release
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diff
changeset
|
2430 d &= 0x07e0f81f; |
|
1428
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Update for Visual C++ 6.0
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1402
diff
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|
2431 *dstp++ = (Uint16)(d | d >> 16); |
|
1
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changeset
|
2432 }, width); |
|
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diff
changeset
|
2433 srcp += srcskip; |
|
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diff
changeset
|
2434 dstp += dstskip; |
|
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diff
changeset
|
2435 } |
| 0 | 2436 } |
| 2437 } | |
| 2438 | |
| 2439 /* fast RGB555->RGB555 blending with surface alpha */ | |
| 2440 static void Blit555to555SurfaceAlpha(SDL_BlitInfo *info) | |
| 2441 { | |
|
1
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diff
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|
2442 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
|
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0
diff
changeset
|
2443 if(alpha == 128) { |
|
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changeset
|
2444 Blit16to16SurfaceAlpha128(info, 0xfbde); |
|
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0
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|
2445 } else { |
|
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0
diff
changeset
|
2446 int width = info->d_width; |
|
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0
diff
changeset
|
2447 int height = info->d_height; |
|
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0
diff
changeset
|
2448 Uint16 *srcp = (Uint16 *)info->s_pixels; |
|
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0
diff
changeset
|
2449 int srcskip = info->s_skip >> 1; |
|
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0
diff
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|
2450 Uint16 *dstp = (Uint16 *)info->d_pixels; |
|
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0
diff
changeset
|
2451 int dstskip = info->d_skip >> 1; |
|
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0
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changeset
|
2452 alpha >>= 3; /* downscale alpha to 5 bits */ |
| 0 | 2453 |
|
1
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Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
2454 while(height--) { |
|
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0
diff
changeset
|
2455 DUFFS_LOOP4({ |
|
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0
diff
changeset
|
2456 Uint32 s = *srcp++; |
|
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0
diff
changeset
|
2457 Uint32 d = *dstp; |
|
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0
diff
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|
2458 /* |
|
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0
diff
changeset
|
2459 * shift out the middle component (green) to |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
2460 * the high 16 bits, and process all three RGB |
|
cf2af46e9e2a
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0
diff
changeset
|
2461 * components at the same time. |
|
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0
diff
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|
2462 */ |
|
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0
diff
changeset
|
2463 s = (s | s << 16) & 0x03e07c1f; |
|
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0
diff
changeset
|
2464 d = (d | d << 16) & 0x03e07c1f; |
|
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|
2465 d += (s - d) * alpha >> 5; |
|
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Changes since SDL 1.2.0 release
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0
diff
changeset
|
2466 d &= 0x03e07c1f; |
|
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Update for Visual C++ 6.0
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|
2467 *dstp++ = (Uint16)(d | d >> 16); |
|
1
cf2af46e9e2a
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0
diff
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|
2468 }, width); |
|
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Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
2469 srcp += srcskip; |
|
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0
diff
changeset
|
2470 dstp += dstskip; |
|
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0
diff
changeset
|
2471 } |
| 0 | 2472 } |
| 2473 } | |
| 2474 | |
| 2475 /* fast ARGB8888->RGB565 blending with pixel alpha */ | |
| 2476 static void BlitARGBto565PixelAlpha(SDL_BlitInfo *info) | |
| 2477 { | |
| 2478 int width = info->d_width; | |
| 2479 int height = info->d_height; | |
| 2480 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 2481 int srcskip = info->s_skip >> 2; | |
| 2482 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2483 int dstskip = info->d_skip >> 1; | |
| 2484 | |
| 2485 while(height--) { | |
| 2486 DUFFS_LOOP4({ | |
| 2487 Uint32 s = *srcp; | |
| 2488 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */ | |
| 2489 /* FIXME: Here we special-case opaque alpha since the | |
| 2490 compositioning used (>>8 instead of /255) doesn't handle | |
| 2491 it correctly. Also special-case alpha=0 for speed? | |
| 2492 Benchmark this! */ | |
|
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|
2493 if(alpha) { |
|
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|
2494 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) { |
|
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diff
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|
2495 *dstp = (Uint16)((s >> 8 & 0xf800) + (s >> 5 & 0x7e0) + (s >> 3 & 0x1f)); |
|
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|
2496 } else { |
| 0 | 2497 Uint32 d = *dstp; |
| 2498 /* | |
| 2499 * convert source and destination to G0RAB65565 | |
| 2500 * and blend all components at the same time | |
| 2501 */ | |
| 2502 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800) | |
| 2503 + (s >> 3 & 0x1f); | |
| 2504 d = (d | d << 16) & 0x07e0f81f; | |
| 2505 d += (s - d) * alpha >> 5; | |
| 2506 d &= 0x07e0f81f; | |
|
1428
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Update for Visual C++ 6.0
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1402
diff
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|
2507 *dstp = (Uint16)(d | d >> 16); |
|
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|
2508 } |
| 0 | 2509 } |
| 2510 srcp++; | |
| 2511 dstp++; | |
| 2512 }, width); | |
| 2513 srcp += srcskip; | |
| 2514 dstp += dstskip; | |
| 2515 } | |
| 2516 } | |
| 2517 | |
| 2518 /* fast ARGB8888->RGB555 blending with pixel alpha */ | |
| 2519 static void BlitARGBto555PixelAlpha(SDL_BlitInfo *info) | |
| 2520 { | |
| 2521 int width = info->d_width; | |
| 2522 int height = info->d_height; | |
| 2523 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 2524 int srcskip = info->s_skip >> 2; | |
| 2525 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2526 int dstskip = info->d_skip >> 1; | |
| 2527 | |
| 2528 while(height--) { | |
| 2529 DUFFS_LOOP4({ | |
| 2530 unsigned alpha; | |
| 2531 Uint32 s = *srcp; | |
| 2532 alpha = s >> 27; /* downscale alpha to 5 bits */ | |
| 2533 /* FIXME: Here we special-case opaque alpha since the | |
| 2534 compositioning used (>>8 instead of /255) doesn't handle | |
| 2535 it correctly. Also special-case alpha=0 for speed? | |
| 2536 Benchmark this! */ | |
|
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|
2537 if(alpha) { |
|
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|
2538 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) { |
|
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1402
diff
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|
2539 *dstp = (Uint16)((s >> 9 & 0x7c00) + (s >> 6 & 0x3e0) + (s >> 3 & 0x1f)); |
|
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|
2540 } else { |
| 0 | 2541 Uint32 d = *dstp; |
| 2542 /* | |
| 2543 * convert source and destination to G0RAB65565 | |
| 2544 * and blend all components at the same time | |
| 2545 */ | |
| 2546 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00) | |
| 2547 + (s >> 3 & 0x1f); | |
| 2548 d = (d | d << 16) & 0x03e07c1f; | |
| 2549 d += (s - d) * alpha >> 5; | |
| 2550 d &= 0x03e07c1f; | |
|
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Update for Visual C++ 6.0
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diff
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|
2551 *dstp = (Uint16)(d | d >> 16); |
|
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|
2552 } |
| 0 | 2553 } |
| 2554 srcp++; | |
| 2555 dstp++; | |
| 2556 }, width); | |
| 2557 srcp += srcskip; | |
| 2558 dstp += dstskip; | |
| 2559 } | |
| 2560 } | |
| 2561 | |
| 2562 /* General (slow) N->N blending with per-surface alpha */ | |
| 2563 static void BlitNtoNSurfaceAlpha(SDL_BlitInfo *info) | |
| 2564 { | |
| 2565 int width = info->d_width; | |
| 2566 int height = info->d_height; | |
| 2567 Uint8 *src = info->s_pixels; | |
| 2568 int srcskip = info->s_skip; | |
| 2569 Uint8 *dst = info->d_pixels; | |
| 2570 int dstskip = info->d_skip; | |
| 2571 SDL_PixelFormat *srcfmt = info->src; | |
| 2572 SDL_PixelFormat *dstfmt = info->dst; | |
| 2573 int srcbpp = srcfmt->BytesPerPixel; | |
| 2574 int dstbpp = dstfmt->BytesPerPixel; | |
| 2575 unsigned sA = srcfmt->alpha; | |
| 2576 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; | |
| 2577 | |
|
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|
2578 if(sA) { |
|
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|
2579 while ( height-- ) { |
| 0 | 2580 DUFFS_LOOP4( |
| 2581 { | |
|
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|
2582 Uint32 Pixel; |
| 0 | 2583 unsigned sR; |
| 2584 unsigned sG; | |
| 2585 unsigned sB; | |
| 2586 unsigned dR; | |
| 2587 unsigned dG; | |
| 2588 unsigned dB; | |
|
1162
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|
2589 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); |
|
2651158f59b8
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|
2590 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB); |
| 0 | 2591 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
| 2592 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); | |
| 2593 src += srcbpp; | |
| 2594 dst += dstbpp; | |
| 2595 }, | |
| 2596 width); | |
| 2597 src += srcskip; | |
| 2598 dst += dstskip; | |
|
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|
2599 } |
| 0 | 2600 } |
| 2601 } | |
| 2602 | |
| 2603 /* General (slow) colorkeyed N->N blending with per-surface alpha */ | |
| 2604 static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info) | |
| 2605 { | |
| 2606 int width = info->d_width; | |
| 2607 int height = info->d_height; | |
| 2608 Uint8 *src = info->s_pixels; | |
| 2609 int srcskip = info->s_skip; | |
| 2610 Uint8 *dst = info->d_pixels; | |
| 2611 int dstskip = info->d_skip; | |
| 2612 SDL_PixelFormat *srcfmt = info->src; | |
| 2613 SDL_PixelFormat *dstfmt = info->dst; | |
| 2614 Uint32 ckey = srcfmt->colorkey; | |
| 2615 int srcbpp = srcfmt->BytesPerPixel; | |
| 2616 int dstbpp = dstfmt->BytesPerPixel; | |
| 2617 unsigned sA = srcfmt->alpha; | |
| 2618 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; | |
| 2619 | |
| 2620 while ( height-- ) { | |
| 2621 DUFFS_LOOP4( | |
| 2622 { | |
|
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|
2623 Uint32 Pixel; |
| 0 | 2624 unsigned sR; |
| 2625 unsigned sG; | |
| 2626 unsigned sB; | |
| 2627 unsigned dR; | |
| 2628 unsigned dG; | |
| 2629 unsigned dB; | |
|
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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|
2630 RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel); |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
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changeset
|
2631 if(sA && Pixel != ckey) { |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
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changeset
|
2632 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); |
|
2651158f59b8
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Ryan C. Gordon <icculus@icculus.org>
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changeset
|
2633 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB); |
| 0 | 2634 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
| 2635 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); | |
| 2636 } | |
| 2637 src += srcbpp; | |
| 2638 dst += dstbpp; | |
| 2639 }, | |
| 2640 width); | |
| 2641 src += srcskip; | |
| 2642 dst += dstskip; | |
| 2643 } | |
| 2644 } | |
| 2645 | |
| 2646 /* General (slow) N->N blending with pixel alpha */ | |
| 2647 static void BlitNtoNPixelAlpha(SDL_BlitInfo *info) | |
| 2648 { | |
| 2649 int width = info->d_width; | |
| 2650 int height = info->d_height; | |
| 2651 Uint8 *src = info->s_pixels; | |
| 2652 int srcskip = info->s_skip; | |
| 2653 Uint8 *dst = info->d_pixels; | |
| 2654 int dstskip = info->d_skip; | |
| 2655 SDL_PixelFormat *srcfmt = info->src; | |
| 2656 SDL_PixelFormat *dstfmt = info->dst; | |
| 2657 | |
| 2658 int srcbpp; | |
| 2659 int dstbpp; | |
| 2660 | |
| 2661 /* Set up some basic variables */ | |
| 2662 srcbpp = srcfmt->BytesPerPixel; | |
| 2663 dstbpp = dstfmt->BytesPerPixel; | |
| 2664 | |
| 2665 /* FIXME: for 8bpp source alpha, this doesn't get opaque values | |
| 2666 quite right. for <8bpp source alpha, it gets them very wrong | |
| 2667 (check all macros!) | |
| 2668 It is unclear whether there is a good general solution that doesn't | |
| 2669 need a branch (or a divide). */ | |
| 2670 while ( height-- ) { | |
| 2671 DUFFS_LOOP4( | |
| 2672 { | |
|
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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|
2673 Uint32 Pixel; |
| 0 | 2674 unsigned sR; |
| 2675 unsigned sG; | |
| 2676 unsigned sB; | |
| 2677 unsigned dR; | |
| 2678 unsigned dG; | |
| 2679 unsigned dB; | |
| 2680 unsigned sA; | |
| 2681 unsigned dA; | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
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changeset
|
2682 DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA); |
|
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2683 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
|
2684 DISEMBLE_RGBA(dst, dstbpp, dstfmt, Pixel, dR, dG, dB, dA); |
|
689
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2685 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
|
5bb080d35049
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2686 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); |
|
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2687 } |
| 0 | 2688 src += srcbpp; |
| 2689 dst += dstbpp; | |
| 2690 }, | |
| 2691 width); | |
| 2692 src += srcskip; | |
| 2693 dst += dstskip; | |
| 2694 } | |
| 2695 } | |
| 2696 | |
| 2697 | |
| 2698 SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index) | |
| 2699 { | |
| 2700 SDL_PixelFormat *sf = surface->format; | |
| 2701 SDL_PixelFormat *df = surface->map->dst->format; | |
| 2702 | |
| 2703 if(sf->Amask == 0) { | |
| 2704 if((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) { | |
| 2705 if(df->BytesPerPixel == 1) | |
| 2706 return BlitNto1SurfaceAlphaKey; | |
| 2707 else | |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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1358
diff
changeset
|
2708 #if SDL_ALTIVEC_BLITTERS |
| 1240 | 2709 if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 && |
| 2710 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) | |
|
1047
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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diff
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|
2711 return Blit32to32SurfaceAlphaKeyAltivec; |
|
ffaaf7ecf685
Altivec-optimized blitters!
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|
2712 else |
|
ffaaf7ecf685
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|
2713 #endif |
|
ffaaf7ecf685
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|
2714 return BlitNtoNSurfaceAlphaKey; |
| 0 | 2715 } else { |
| 2716 /* Per-surface alpha blits */ | |
| 2717 switch(df->BytesPerPixel) { | |
| 2718 case 1: | |
| 2719 return BlitNto1SurfaceAlpha; | |
| 2720 | |
| 2721 case 2: | |
| 2722 if(surface->map->identity) { | |
| 2723 if(df->Gmask == 0x7e0) | |
|
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2724 { |
|
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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|
2725 #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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|
2726 if(SDL_HasMMX()) |
|
689
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2727 return Blit565to565SurfaceAlphaMMX; |
|
5bb080d35049
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2728 else |
|
5bb080d35049
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2729 #endif |
| 0 | 2730 return Blit565to565SurfaceAlpha; |
|
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2731 } |
| 0 | 2732 else if(df->Gmask == 0x3e0) |
|
689
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2733 { |
|
1361
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diff
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|
2734 #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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|
2735 if(SDL_HasMMX()) |
|
689
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|
2736 return Blit555to555SurfaceAlphaMMX; |
|
5bb080d35049
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|
2737 else |
|
5bb080d35049
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|
2738 #endif |
| 0 | 2739 return Blit555to555SurfaceAlpha; |
|
689
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|
2740 } |
| 0 | 2741 } |
| 2742 return BlitNtoNSurfaceAlpha; | |
| 2743 | |
| 2744 case 4: | |
| 2745 if(sf->Rmask == df->Rmask | |
| 2746 && sf->Gmask == df->Gmask | |
| 2747 && sf->Bmask == df->Bmask | |
| 2748 && sf->BytesPerPixel == 4) | |
|
689
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|
2749 { |
|
1361
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New configure-based build system. Still work in progress, but much improved
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1358
diff
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|
2750 #if MMX_ASMBLIT |
| 1542 | 2751 if(sf->Rshift % 8 == 0 |
| 2752 && sf->Gshift % 8 == 0 | |
| 2753 && sf->Bshift % 8 == 0 | |
| 2754 && SDL_HasMMX()) | |
| 2755 return BlitRGBtoRGBSurfaceAlphaMMX; | |
| 2756 #endif | |
| 2757 if((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff) | |
| 2758 { | |
| 2759 #if USE_ALTIVEC_BLITTERS | |
| 2760 if(SDL_HasAltiVec()) | |
| 2761 return BlitRGBtoRGBSurfaceAlphaAltivec; | |
| 2762 #endif | |
| 2763 return BlitRGBtoRGBSurfaceAlpha; | |
| 2764 } | |
| 2765 } | |
| 2766 #if SDL_ALTIVEC_BLITTERS | |
| 2767 if((sf->BytesPerPixel == 4) && | |
| 2768 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) | |
| 2769 return Blit32to32SurfaceAlphaAltivec; | |
|
689
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|
2770 else |
|
5bb080d35049
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|
2771 #endif |
| 1542 | 2772 return BlitNtoNSurfaceAlpha; |
| 0 | 2773 |
| 2774 case 3: | |
| 2775 default: | |
| 2776 return BlitNtoNSurfaceAlpha; | |
| 2777 } | |
| 2778 } | |
| 2779 } else { | |
| 2780 /* Per-pixel alpha blits */ | |
| 2781 switch(df->BytesPerPixel) { | |
| 2782 case 1: | |
| 2783 return BlitNto1PixelAlpha; | |
| 2784 | |
| 2785 case 2: | |
|
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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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|
2786 #if SDL_ALTIVEC_BLITTERS |
| 1240 | 2787 if(sf->BytesPerPixel == 4 && !(surface->map->dst->flags & SDL_HWSURFACE) && |
|
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|
2788 df->Gmask == 0x7e0 && |
| 1240 | 2789 df->Bmask == 0x1f && SDL_HasAltiVec()) |
|
1047
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Altivec-optimized blitters!
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|
2790 return Blit32to565PixelAlphaAltivec; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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diff
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|
2791 else |
|
ffaaf7ecf685
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|
2792 #endif |
| 0 | 2793 if(sf->BytesPerPixel == 4 && sf->Amask == 0xff000000 |
| 2794 && sf->Gmask == 0xff00 | |
| 2795 && ((sf->Rmask == 0xff && df->Rmask == 0x1f) | |
| 2796 || (sf->Bmask == 0xff && df->Bmask == 0x1f))) { | |
| 2797 if(df->Gmask == 0x7e0) | |
| 2798 return BlitARGBto565PixelAlpha; | |
| 2799 else if(df->Gmask == 0x3e0) | |
| 2800 return BlitARGBto555PixelAlpha; | |
| 2801 } | |
| 2802 return BlitNtoNPixelAlpha; | |
| 2803 | |
| 2804 case 4: | |
| 1542 | 2805 if(sf->Rmask == df->Rmask |
| 0 | 2806 && sf->Gmask == df->Gmask |
| 2807 && sf->Bmask == df->Bmask | |
| 2808 && sf->BytesPerPixel == 4) | |
|
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|
2809 { |
|
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diff
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|
2810 #if MMX_ASMBLIT |
| 1542 | 2811 if(sf->Rshift % 8 == 0 |
| 2812 && sf->Gshift % 8 == 0 | |
| 2813 && sf->Bshift % 8 == 0 | |
| 2814 && sf->Ashift % 8 == 0 | |
| 2815 && sf->Aloss == 0) | |
| 2816 { | |
| 2817 if(SDL_Has3DNow()) | |
| 2818 return BlitRGBtoRGBPixelAlphaMMX3DNOW; | |
| 2819 if(SDL_HasMMX()) | |
| 2820 return BlitRGBtoRGBPixelAlphaMMX; | |
| 2821 } | |
|
689
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|
2822 #endif |
| 1542 | 2823 if(sf->Amask == 0xff000000) |
| 2824 { | |
| 2825 #if USE_ALTIVEC_BLITTERS | |
| 2826 if(SDL_HasAltiVec()) | |
| 2827 return BlitRGBtoRGBPixelAlphaAltivec; | |
|
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|
2828 #endif |
| 1542 | 2829 return BlitRGBtoRGBPixelAlpha; |
| 2830 } | |
|
689
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|
2831 } |
|
1361
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New configure-based build system. Still work in progress, but much improved
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1358
diff
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|
2832 #if SDL_ALTIVEC_BLITTERS |
| 1542 | 2833 if (sf->Amask && sf->BytesPerPixel == 4 && |
| 2834 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) | |
| 2835 return Blit32to32PixelAlphaAltivec; | |
| 2836 else | |
|
1047
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Ryan C. Gordon <icculus@icculus.org>
parents:
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diff
changeset
|
2837 #endif |
| 1542 | 2838 return BlitNtoNPixelAlpha; |
| 0 | 2839 |
| 2840 case 3: | |
| 2841 default: | |
| 2842 return BlitNtoNPixelAlpha; | |
| 2843 } | |
| 2844 } | |
| 2845 } | |
| 2846 |