Mercurial > sdl-ios-xcode
annotate src/video/SDL_blit_A.c @ 4293:63b54ddd38ea SDL-1.2
Fixed bug #627
Increased accuracy of alpha blend calculation
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 10 Oct 2009 07:48:15 +0000 |
| parents | 800f3cb78e45 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
| 4159 | 3 Copyright (C) 1997-2009 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 | |
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27 /* |
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28 In Visual C, VC6 has mmintrin.h in the "Processor Pack" add-on. |
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29 Checking if _mm_free is #defined in malloc.h is is the only way to |
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30 determine if the Processor Pack is installed, as far as I can tell. |
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31 */ |
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32 |
| 1542 | 33 #if SDL_ASSEMBLY_ROUTINES |
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34 # if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__)) |
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35 # define MMX_ASMBLIT 1 |
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36 # define GCC_ASMBLIT 1 |
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37 # elif defined(_MSC_VER) && defined(_M_IX86) |
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38 # if (_MSC_VER <= 1200) |
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39 # include <malloc.h> |
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40 # if defined(_mm_free) |
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41 # define HAVE_MMINTRIN_H 1 |
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42 # endif |
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43 # else /* Visual Studio > VC6 always has mmintrin.h */ |
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44 # define HAVE_MMINTRIN_H 1 |
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45 # endif |
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46 # if HAVE_MMINTRIN_H |
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47 # define MMX_ASMBLIT 1 |
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48 # define MSVC_ASMBLIT 1 |
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49 # endif |
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50 # endif |
| 1542 | 51 #endif /* SDL_ASSEMBLY_ROUTINES */ |
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52 |
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53 /* Function to check the CPU flags */ |
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54 #include "SDL_cpuinfo.h" |
| 1542 | 55 #if GCC_ASMBLIT |
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56 #include "mmx.h" |
| 1542 | 57 #elif MSVC_ASMBLIT |
| 58 #include <mmintrin.h> | |
| 59 #include <mm3dnow.h> | |
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60 #endif |
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61 |
| 0 | 62 /* Functions to perform alpha blended blitting */ |
| 63 | |
| 64 /* N->1 blending with per-surface alpha */ | |
| 65 static void BlitNto1SurfaceAlpha(SDL_BlitInfo *info) | |
| 66 { | |
| 67 int width = info->d_width; | |
| 68 int height = info->d_height; | |
| 69 Uint8 *src = info->s_pixels; | |
| 70 int srcskip = info->s_skip; | |
| 71 Uint8 *dst = info->d_pixels; | |
| 72 int dstskip = info->d_skip; | |
| 73 Uint8 *palmap = info->table; | |
| 74 SDL_PixelFormat *srcfmt = info->src; | |
| 75 SDL_PixelFormat *dstfmt = info->dst; | |
| 76 int srcbpp = srcfmt->BytesPerPixel; | |
| 77 | |
| 78 const unsigned A = srcfmt->alpha; | |
| 79 | |
| 80 while ( height-- ) { | |
| 81 DUFFS_LOOP4( | |
| 82 { | |
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83 Uint32 Pixel; |
| 0 | 84 unsigned sR; |
| 85 unsigned sG; | |
| 86 unsigned sB; | |
| 87 unsigned dR; | |
| 88 unsigned dG; | |
| 89 unsigned dB; | |
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90 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); |
| 0 | 91 dR = dstfmt->palette->colors[*dst].r; |
| 92 dG = dstfmt->palette->colors[*dst].g; | |
| 93 dB = dstfmt->palette->colors[*dst].b; | |
| 94 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB); | |
| 95 dR &= 0xff; | |
| 96 dG &= 0xff; | |
| 97 dB &= 0xff; | |
| 98 /* Pack RGB into 8bit pixel */ | |
| 99 if ( palmap == NULL ) { | |
| 100 *dst =((dR>>5)<<(3+2))| | |
| 101 ((dG>>5)<<(2))| | |
| 102 ((dB>>6)<<(0)); | |
| 103 } else { | |
| 104 *dst = palmap[((dR>>5)<<(3+2))| | |
| 105 ((dG>>5)<<(2)) | | |
| 106 ((dB>>6)<<(0))]; | |
| 107 } | |
| 108 dst++; | |
| 109 src += srcbpp; | |
| 110 }, | |
| 111 width); | |
| 112 src += srcskip; | |
| 113 dst += dstskip; | |
| 114 } | |
| 115 } | |
| 116 | |
| 117 /* N->1 blending with pixel alpha */ | |
| 118 static void BlitNto1PixelAlpha(SDL_BlitInfo *info) | |
| 119 { | |
| 120 int width = info->d_width; | |
| 121 int height = info->d_height; | |
| 122 Uint8 *src = info->s_pixels; | |
| 123 int srcskip = info->s_skip; | |
| 124 Uint8 *dst = info->d_pixels; | |
| 125 int dstskip = info->d_skip; | |
| 126 Uint8 *palmap = info->table; | |
| 127 SDL_PixelFormat *srcfmt = info->src; | |
| 128 SDL_PixelFormat *dstfmt = info->dst; | |
| 129 int srcbpp = srcfmt->BytesPerPixel; | |
| 130 | |
| 131 /* FIXME: fix alpha bit field expansion here too? */ | |
| 132 while ( height-- ) { | |
| 133 DUFFS_LOOP4( | |
| 134 { | |
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135 Uint32 Pixel; |
| 0 | 136 unsigned sR; |
| 137 unsigned sG; | |
| 138 unsigned sB; | |
| 139 unsigned sA; | |
| 140 unsigned dR; | |
| 141 unsigned dG; | |
| 142 unsigned dB; | |
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143 DISEMBLE_RGBA(src,srcbpp,srcfmt,Pixel,sR,sG,sB,sA); |
| 0 | 144 dR = dstfmt->palette->colors[*dst].r; |
| 145 dG = dstfmt->palette->colors[*dst].g; | |
| 146 dB = dstfmt->palette->colors[*dst].b; | |
| 147 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); | |
| 148 dR &= 0xff; | |
| 149 dG &= 0xff; | |
| 150 dB &= 0xff; | |
| 151 /* Pack RGB into 8bit pixel */ | |
| 152 if ( palmap == NULL ) { | |
| 153 *dst =((dR>>5)<<(3+2))| | |
| 154 ((dG>>5)<<(2))| | |
| 155 ((dB>>6)<<(0)); | |
| 156 } else { | |
| 157 *dst = palmap[((dR>>5)<<(3+2))| | |
| 158 ((dG>>5)<<(2)) | | |
| 159 ((dB>>6)<<(0)) ]; | |
| 160 } | |
| 161 dst++; | |
| 162 src += srcbpp; | |
| 163 }, | |
| 164 width); | |
| 165 src += srcskip; | |
| 166 dst += dstskip; | |
| 167 } | |
| 168 } | |
| 169 | |
| 170 /* colorkeyed N->1 blending with per-surface alpha */ | |
| 171 static void BlitNto1SurfaceAlphaKey(SDL_BlitInfo *info) | |
| 172 { | |
| 173 int width = info->d_width; | |
| 174 int height = info->d_height; | |
| 175 Uint8 *src = info->s_pixels; | |
| 176 int srcskip = info->s_skip; | |
| 177 Uint8 *dst = info->d_pixels; | |
| 178 int dstskip = info->d_skip; | |
| 179 Uint8 *palmap = info->table; | |
| 180 SDL_PixelFormat *srcfmt = info->src; | |
| 181 SDL_PixelFormat *dstfmt = info->dst; | |
| 182 int srcbpp = srcfmt->BytesPerPixel; | |
| 183 Uint32 ckey = srcfmt->colorkey; | |
| 184 | |
| 185 const int A = srcfmt->alpha; | |
| 186 | |
| 187 while ( height-- ) { | |
| 188 DUFFS_LOOP( | |
| 189 { | |
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190 Uint32 Pixel; |
| 0 | 191 unsigned sR; |
| 192 unsigned sG; | |
| 193 unsigned sB; | |
| 194 unsigned dR; | |
| 195 unsigned dG; | |
| 196 unsigned dB; | |
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197 DISEMBLE_RGB(src, srcbpp, srcfmt, Pixel, sR, sG, sB); |
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198 if ( Pixel != ckey ) { |
| 0 | 199 dR = dstfmt->palette->colors[*dst].r; |
| 200 dG = dstfmt->palette->colors[*dst].g; | |
| 201 dB = dstfmt->palette->colors[*dst].b; | |
| 202 ALPHA_BLEND(sR, sG, sB, A, dR, dG, dB); | |
| 203 dR &= 0xff; | |
| 204 dG &= 0xff; | |
| 205 dB &= 0xff; | |
| 206 /* Pack RGB into 8bit pixel */ | |
| 207 if ( palmap == NULL ) { | |
| 208 *dst =((dR>>5)<<(3+2))| | |
| 209 ((dG>>5)<<(2)) | | |
| 210 ((dB>>6)<<(0)); | |
| 211 } else { | |
| 212 *dst = palmap[((dR>>5)<<(3+2))| | |
| 213 ((dG>>5)<<(2)) | | |
| 214 ((dB>>6)<<(0)) ]; | |
| 215 } | |
| 216 } | |
| 217 dst++; | |
| 218 src += srcbpp; | |
| 219 }, | |
| 220 width); | |
| 221 src += srcskip; | |
| 222 dst += dstskip; | |
| 223 } | |
| 224 } | |
| 225 | |
| 1542 | 226 #if GCC_ASMBLIT |
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227 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ |
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228 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info) |
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229 { |
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230 int width = info->d_width; |
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231 int height = info->d_height; |
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232 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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233 int srcskip = info->s_skip >> 2; |
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234 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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235 int dstskip = info->d_skip >> 2; |
| 1542 | 236 Uint32 dalpha = info->dst->Amask; |
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237 Uint64 load; |
| 1542 | 238 |
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239 load = 0x00fefefe00fefefeULL;/* alpha128 mask */ |
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240 movq_m2r(load, mm4); /* alpha128 mask -> mm4 */ |
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241 load = 0x0001010100010101ULL;/* !alpha128 mask */ |
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242 movq_m2r(load, mm3); /* !alpha128 mask -> mm3 */ |
| 1542 | 243 movd_m2r(dalpha, mm7); /* dst alpha mask */ |
| 244 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ | |
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245 while(height--) { |
| 1542 | 246 DUFFS_LOOP_DOUBLE2( |
| 247 { | |
| 248 Uint32 s = *srcp++; | |
| 249 Uint32 d = *dstp; | |
| 250 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) | |
| 251 + (s & d & 0x00010101)) | dalpha; | |
| 252 },{ | |
| 253 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */ | |
| 254 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */ | |
| 255 | |
| 256 movq_m2r((*srcp), mm1);/* 2 x src -> mm1(ARGBARGB) */ | |
| 257 movq_r2r(mm1, mm5); /* 2 x src -> mm5(ARGBARGB) */ | |
| 258 | |
| 259 pand_r2r(mm4, mm6); /* dst & mask -> mm6 */ | |
| 260 pand_r2r(mm4, mm5); /* src & mask -> mm5 */ | |
| 261 paddd_r2r(mm6, mm5); /* mm6 + mm5 -> mm5 */ | |
| 262 pand_r2r(mm1, mm2); /* src & dst -> mm2 */ | |
| 263 psrld_i2r(1, mm5); /* mm5 >> 1 -> mm5 */ | |
| 264 pand_r2r(mm3, mm2); /* mm2 & !mask -> mm2 */ | |
| 265 paddd_r2r(mm5, mm2); /* mm5 + mm2 -> mm2 */ | |
| 266 | |
| 267 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */ | |
| 268 movq_r2m(mm2, (*dstp));/* mm2 -> 2 x dst pixels */ | |
| 269 dstp += 2; | |
| 270 srcp += 2; | |
| 271 }, width); | |
| 272 srcp += srcskip; | |
| 273 dstp += dstskip; | |
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274 } |
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275 emms(); |
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276 } |
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277 |
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278 /* fast RGB888->(A)RGB888 blending with surface alpha */ |
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279 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info) |
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280 { |
| 1542 | 281 SDL_PixelFormat* df = info->dst; |
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282 unsigned alpha = info->src->alpha; |
| 1542 | 283 |
| 284 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { | |
| 285 /* only call a128 version when R,G,B occupy lower bits */ | |
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286 BlitRGBtoRGBSurfaceAlpha128MMX(info); |
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287 } else { |
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288 int width = info->d_width; |
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289 int height = info->d_height; |
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290 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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291 int srcskip = info->s_skip >> 2; |
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292 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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293 int dstskip = info->d_skip >> 2; |
| 1542 | 294 |
| 295 pxor_r2r(mm5, mm5); /* 0 -> mm5 */ | |
| 296 /* form the alpha mult */ | |
| 297 movd_m2r(alpha, mm4); /* 0000000A -> mm4 */ | |
| 298 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */ | |
| 299 punpckldq_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */ | |
| 300 alpha = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift); | |
| 301 movd_m2r(alpha, mm0); /* 00000FFF -> mm0 */ | |
| 302 punpcklbw_r2r(mm0, mm0); /* 00FFFFFF -> mm0 */ | |
| 303 pand_r2r(mm0, mm4); /* 0A0A0A0A -> mm4, minus 1 chan */ | |
| 304 /* at this point mm4 can be 000A0A0A or 0A0A0A00 or another combo */ | |
| 305 movd_m2r(df->Amask, mm7); /* dst alpha mask */ | |
| 306 punpckldq_r2r(mm7, mm7); /* dst alpha mask | dst alpha mask -> mm7 */ | |
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307 |
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308 while(height--) { |
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309 DUFFS_LOOP_DOUBLE2({ |
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310 /* One Pixel Blend */ |
| 1542 | 311 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ |
| 312 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ | |
| 313 punpcklbw_r2r(mm5, mm1); /* 0A0R0G0B -> mm1(src) */ | |
| 314 punpcklbw_r2r(mm5, mm2); /* 0A0R0G0B -> mm2(dst) */ | |
| 315 | |
| 316 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */ | |
| 317 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ | |
| 318 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */ | |
| 319 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */ | |
| 320 | |
| 321 packuswb_r2r(mm5, mm2); /* ARGBARGB -> mm2 */ | |
| 322 por_r2r(mm7, mm2); /* mm7(full alpha) | mm2 -> mm2 */ | |
| 323 movd_r2m(mm2, *dstp);/* mm2 -> pixel */ | |
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324 ++srcp; |
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325 ++dstp; |
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326 },{ |
| 1542 | 327 /* Two Pixels Blend */ |
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328 movq_m2r((*srcp), mm0);/* 2 x src -> mm0(ARGBARGB)*/ |
| 1542 | 329 movq_m2r((*dstp), mm2);/* 2 x dst -> mm2(ARGBARGB) */ |
| 330 movq_r2r(mm0, mm1); /* 2 x src -> mm1(ARGBARGB) */ | |
| 331 movq_r2r(mm2, mm6); /* 2 x dst -> mm6(ARGBARGB) */ | |
| 332 | |
| 333 punpcklbw_r2r(mm5, mm0); /* low - 0A0R0G0B -> mm0(src1) */ | |
| 334 punpckhbw_r2r(mm5, mm1); /* high - 0A0R0G0B -> mm1(src2) */ | |
| 335 punpcklbw_r2r(mm5, mm2); /* low - 0A0R0G0B -> mm2(dst1) */ | |
| 336 punpckhbw_r2r(mm5, mm6); /* high - 0A0R0G0B -> mm6(dst2) */ | |
| 337 | |
| 338 psubw_r2r(mm2, mm0);/* src1 - dst1 -> mm0 */ | |
| 339 pmullw_r2r(mm4, mm0); /* mm0 * alpha -> mm0 */ | |
| 340 psrlw_i2r(8, mm0); /* mm0 >> 8 -> mm1 */ | |
| 341 paddb_r2r(mm0, mm2); /* mm0 + mm2(dst1) -> mm2 */ | |
| 342 | |
| 343 psubw_r2r(mm6, mm1);/* src2 - dst2 -> mm1 */ | |
| 344 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ | |
| 345 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1 */ | |
| 346 paddb_r2r(mm1, mm6); /* mm1 + mm6(dst2) -> mm6 */ | |
| 347 | |
| 348 packuswb_r2r(mm6, mm2); /* ARGBARGB -> mm2 */ | |
| 349 por_r2r(mm7, mm2); /* mm7(dst alpha) | mm2 -> mm2 */ | |
| 350 | |
| 351 movq_r2m(mm2, *dstp);/* mm2 -> 2 x pixel */ | |
| 352 | |
| 353 srcp += 2; | |
| 354 dstp += 2; | |
| 355 }, width); | |
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356 srcp += srcskip; |
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357 dstp += dstskip; |
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358 } |
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359 emms(); |
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360 } |
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361 } |
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362 |
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363 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
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364 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info) |
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365 { |
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366 int width = info->d_width; |
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367 int height = info->d_height; |
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368 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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369 int srcskip = info->s_skip >> 2; |
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370 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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371 int dstskip = info->d_skip >> 2; |
| 1542 | 372 SDL_PixelFormat* sf = info->src; |
| 373 Uint32 amask = sf->Amask; | |
| 374 | |
| 375 pxor_r2r(mm6, mm6); /* 0 -> mm6 */ | |
| 376 /* form multiplication mask */ | |
| 377 movd_m2r(sf->Amask, mm7); /* 0000F000 -> mm7 */ | |
| 378 punpcklbw_r2r(mm7, mm7); /* FF000000 -> mm7 */ | |
| 379 pcmpeqb_r2r(mm0, mm0); /* FFFFFFFF -> mm0 */ | |
| 380 movq_r2r(mm0, mm3); /* FFFFFFFF -> mm3 (for later) */ | |
| 381 pxor_r2r(mm0, mm7); /* 00FFFFFF -> mm7 (mult mask) */ | |
| 382 /* form channel masks */ | |
| 383 movq_r2r(mm7, mm0); /* 00FFFFFF -> mm0 */ | |
| 384 packsswb_r2r(mm6, mm0); /* 00000FFF -> mm0 (channel mask) */ | |
| 385 packsswb_r2r(mm6, mm3); /* 0000FFFF -> mm3 */ | |
| 386 pxor_r2r(mm0, mm3); /* 0000F000 -> mm3 (~channel mask) */ | |
| 387 /* get alpha channel shift */ | |
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388 __asm__ __volatile__ ( |
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389 "movd %0, %%mm5" |
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390 : : "rm" ((Uint32) sf->Ashift) ); /* Ashift -> mm5 */ |
| 1542 | 391 |
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392 while(height--) { |
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393 DUFFS_LOOP4({ |
| 1542 | 394 Uint32 alpha = *srcp & amask; |
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395 /* FIXME: Here we special-case opaque alpha since the |
| 1542 | 396 compositioning used (>>8 instead of /255) doesn't handle |
| 397 it correctly. Also special-case alpha=0 for speed? | |
| 398 Benchmark this! */ | |
| 399 if(alpha == 0) { | |
| 400 /* do nothing */ | |
| 401 } else if(alpha == amask) { | |
| 402 /* opaque alpha -- copy RGB, keep dst alpha */ | |
| 403 /* using MMX here to free up regular registers for other things */ | |
| 404 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ | |
| 405 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ | |
| 406 pand_r2r(mm0, mm1); /* src & chanmask -> mm1 */ | |
| 407 pand_r2r(mm3, mm2); /* dst & ~chanmask -> mm2 */ | |
| 408 por_r2r(mm1, mm2); /* src | dst -> mm2 */ | |
| 409 movd_r2m(mm2, (*dstp)); /* mm2 -> dst */ | |
| 410 } else { | |
| 411 movd_m2r((*srcp), mm1);/* src(ARGB) -> mm1 (0000ARGB)*/ | |
| 412 punpcklbw_r2r(mm6, mm1); /* 0A0R0G0B -> mm1 */ | |
| 413 | |
| 414 movd_m2r((*dstp), mm2);/* dst(ARGB) -> mm2 (0000ARGB)*/ | |
| 415 punpcklbw_r2r(mm6, mm2); /* 0A0R0G0B -> mm2 */ | |
| 416 | |
| 417 __asm__ __volatile__ ( | |
| 418 "movd %0, %%mm4" | |
| 419 : : "r" (alpha) ); /* 0000A000 -> mm4 */ | |
| 420 psrld_r2r(mm5, mm4); /* mm4 >> mm5 -> mm4 (0000000A) */ | |
| 421 punpcklwd_r2r(mm4, mm4); /* 00000A0A -> mm4 */ | |
| 422 punpcklwd_r2r(mm4, mm4); /* 0A0A0A0A -> mm4 */ | |
| 423 pand_r2r(mm7, mm4); /* 000A0A0A -> mm4, preserve dst alpha on add */ | |
| 424 | |
| 425 /* blend */ | |
| 426 psubw_r2r(mm2, mm1);/* src - dst -> mm1 */ | |
| 427 pmullw_r2r(mm4, mm1); /* mm1 * alpha -> mm1 */ | |
| 428 psrlw_i2r(8, mm1); /* mm1 >> 8 -> mm1(000R0G0B) */ | |
| 429 paddb_r2r(mm1, mm2); /* mm1 + mm2(dst) -> mm2 */ | |
| 430 | |
| 431 packuswb_r2r(mm6, mm2); /* 0000ARGB -> mm2 */ | |
| 432 movd_r2m(mm2, *dstp);/* mm2 -> dst */ | |
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433 } |
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434 ++srcp; |
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435 ++dstp; |
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436 }, width); |
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437 srcp += srcskip; |
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438 dstp += dstskip; |
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439 } |
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440 emms(); |
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441 } |
| 1542 | 442 /* End GCC_ASMBLIT */ |
| 443 | |
| 444 #elif MSVC_ASMBLIT | |
| 445 /* fast RGB888->(A)RGB888 blending with surface alpha=128 special case */ | |
| 446 static void BlitRGBtoRGBSurfaceAlpha128MMX(SDL_BlitInfo *info) | |
| 447 { | |
| 448 int width = info->d_width; | |
| 449 int height = info->d_height; | |
| 450 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 451 int srcskip = info->s_skip >> 2; | |
| 452 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 453 int dstskip = info->d_skip >> 2; | |
| 454 Uint32 dalpha = info->dst->Amask; | |
| 455 | |
| 456 __m64 src1, src2, dst1, dst2, lmask, hmask, dsta; | |
| 457 | |
| 458 hmask = _mm_set_pi32(0x00fefefe, 0x00fefefe); /* alpha128 mask -> hmask */ | |
| 459 lmask = _mm_set_pi32(0x00010101, 0x00010101); /* !alpha128 mask -> lmask */ | |
| 460 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ | |
| 461 | |
| 462 while (height--) { | |
| 463 int n = width; | |
| 464 if ( n & 1 ) { | |
| 465 Uint32 s = *srcp++; | |
| 466 Uint32 d = *dstp; | |
| 467 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) | |
| 468 + (s & d & 0x00010101)) | dalpha; | |
| 469 n--; | |
| 470 } | |
| 471 | |
| 472 for (n >>= 1; n > 0; --n) { | |
| 473 dst1 = *(__m64*)dstp; /* 2 x dst -> dst1(ARGBARGB) */ | |
| 474 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ | |
| 475 | |
| 476 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB) */ | |
| 477 src2 = src1; /* 2 x src -> src2(ARGBARGB) */ | |
| 478 | |
| 479 dst2 = _mm_and_si64(dst2, hmask); /* dst & mask -> dst2 */ | |
| 480 src2 = _mm_and_si64(src2, hmask); /* src & mask -> src2 */ | |
| 481 src2 = _mm_add_pi32(src2, dst2); /* dst2 + src2 -> src2 */ | |
| 482 src2 = _mm_srli_pi32(src2, 1); /* src2 >> 1 -> src2 */ | |
| 483 | |
| 484 dst1 = _mm_and_si64(dst1, src1); /* src & dst -> dst1 */ | |
| 485 dst1 = _mm_and_si64(dst1, lmask); /* dst1 & !mask -> dst1 */ | |
| 486 dst1 = _mm_add_pi32(dst1, src2); /* src2 + dst1 -> dst1 */ | |
| 487 dst1 = _mm_or_si64(dst1, dsta); /* dsta(full alpha) | dst1 -> dst1 */ | |
| 488 | |
| 489 *(__m64*)dstp = dst1; /* dst1 -> 2 x dst pixels */ | |
| 490 dstp += 2; | |
| 491 srcp += 2; | |
| 492 } | |
| 493 | |
| 494 srcp += srcskip; | |
| 495 dstp += dstskip; | |
| 496 } | |
| 497 _mm_empty(); | |
| 498 } | |
| 499 | |
| 500 /* fast RGB888->(A)RGB888 blending with surface alpha */ | |
| 501 static void BlitRGBtoRGBSurfaceAlphaMMX(SDL_BlitInfo *info) | |
| 502 { | |
| 503 SDL_PixelFormat* df = info->dst; | |
| 504 Uint32 chanmask = df->Rmask | df->Gmask | df->Bmask; | |
| 505 unsigned alpha = info->src->alpha; | |
| 506 | |
| 507 if (alpha == 128 && (df->Rmask | df->Gmask | df->Bmask) == 0x00FFFFFF) { | |
| 508 /* only call a128 version when R,G,B occupy lower bits */ | |
| 509 BlitRGBtoRGBSurfaceAlpha128MMX(info); | |
| 510 } else { | |
| 511 int width = info->d_width; | |
| 512 int height = info->d_height; | |
| 513 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 514 int srcskip = info->s_skip >> 2; | |
| 515 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 516 int dstskip = info->d_skip >> 2; | |
| 517 Uint32 dalpha = df->Amask; | |
| 518 Uint32 amult; | |
| 519 | |
| 520 __m64 src1, src2, dst1, dst2, mm_alpha, mm_zero, dsta; | |
| 521 | |
| 522 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ | |
| 523 /* form the alpha mult */ | |
| 524 amult = alpha | (alpha << 8); | |
| 525 amult = amult | (amult << 16); | |
| 526 chanmask = (0xff << df->Rshift) | (0xff << df->Gshift) | (0xff << df->Bshift); | |
| 527 mm_alpha = _mm_set_pi32(0, amult & chanmask); /* 0000AAAA -> mm_alpha, minus 1 chan */ | |
| 528 mm_alpha = _mm_unpacklo_pi8(mm_alpha, mm_zero); /* 0A0A0A0A -> mm_alpha, minus 1 chan */ | |
| 529 /* at this point mm_alpha can be 000A0A0A or 0A0A0A00 or another combo */ | |
| 530 dsta = _mm_set_pi32(dalpha, dalpha); /* dst alpha mask -> dsta */ | |
| 531 | |
| 532 while (height--) { | |
| 533 int n = width; | |
| 534 if (n & 1) { | |
| 535 /* One Pixel Blend */ | |
| 536 src2 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src2 (0000ARGB)*/ | |
| 537 src2 = _mm_unpacklo_pi8(src2, mm_zero); /* 0A0R0G0B -> src2 */ | |
| 538 | |
| 539 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ | |
| 540 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ | |
| 541 | |
| 542 src2 = _mm_sub_pi16(src2, dst1); /* src2 - dst2 -> src2 */ | |
| 543 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 544 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ | |
| 545 dst1 = _mm_add_pi8(src2, dst1); /* src2 + dst1 -> dst1 */ | |
| 546 | |
| 547 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ | |
| 548 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ | |
| 549 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ | |
| 550 | |
| 551 ++srcp; | |
| 552 ++dstp; | |
| 553 | |
| 554 n--; | |
| 555 } | |
| 556 | |
| 557 for (n >>= 1; n > 0; --n) { | |
| 558 /* Two Pixels Blend */ | |
| 559 src1 = *(__m64*)srcp; /* 2 x src -> src1(ARGBARGB)*/ | |
| 560 src2 = src1; /* 2 x src -> src2(ARGBARGB) */ | |
| 561 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* low - 0A0R0G0B -> src1 */ | |
| 562 src2 = _mm_unpackhi_pi8(src2, mm_zero); /* high - 0A0R0G0B -> src2 */ | |
| 563 | |
| 564 dst1 = *(__m64*)dstp;/* 2 x dst -> dst1(ARGBARGB) */ | |
| 565 dst2 = dst1; /* 2 x dst -> dst2(ARGBARGB) */ | |
| 566 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* low - 0A0R0G0B -> dst1 */ | |
| 567 dst2 = _mm_unpackhi_pi8(dst2, mm_zero); /* high - 0A0R0G0B -> dst2 */ | |
| 568 | |
| 569 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */ | |
| 570 src1 = _mm_mullo_pi16(src1, mm_alpha); /* src1 * alpha -> src1 */ | |
| 571 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1 */ | |
| 572 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst1) -> dst1 */ | |
| 573 | |
| 574 src2 = _mm_sub_pi16(src2, dst2);/* src2 - dst2 -> src2 */ | |
| 575 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 576 src2 = _mm_srli_pi16(src2, 8); /* src2 >> 8 -> src2 */ | |
| 577 dst2 = _mm_add_pi8(src2, dst2); /* src2 + dst2(dst2) -> dst2 */ | |
| 578 | |
| 579 dst1 = _mm_packs_pu16(dst1, dst2); /* 0A0R0G0B(res1), 0A0R0G0B(res2) -> dst1(ARGBARGB) */ | |
| 580 dst1 = _mm_or_si64(dst1, dsta); /* dsta | dst1 -> dst1 */ | |
| 581 | |
| 582 *(__m64*)dstp = dst1; /* dst1 -> 2 x pixel */ | |
| 583 | |
| 584 srcp += 2; | |
| 585 dstp += 2; | |
| 586 } | |
| 587 srcp += srcskip; | |
| 588 dstp += dstskip; | |
| 589 } | |
| 590 _mm_empty(); | |
| 591 } | |
| 592 } | |
| 593 | |
| 594 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ | |
| 595 static void BlitRGBtoRGBPixelAlphaMMX(SDL_BlitInfo *info) | |
| 596 { | |
| 597 int width = info->d_width; | |
| 598 int height = info->d_height; | |
| 599 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 600 int srcskip = info->s_skip >> 2; | |
| 601 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 602 int dstskip = info->d_skip >> 2; | |
| 603 SDL_PixelFormat* sf = info->src; | |
| 604 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; | |
| 605 Uint32 amask = sf->Amask; | |
| 606 Uint32 ashift = sf->Ashift; | |
| 607 Uint64 multmask; | |
| 608 | |
| 609 __m64 src1, dst1, mm_alpha, mm_zero, dmask; | |
| 610 | |
| 611 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ | |
| 612 multmask = ~(0xFFFFi64 << (ashift * 2)); | |
| 613 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ | |
| 614 | |
| 615 while(height--) { | |
| 616 DUFFS_LOOP4({ | |
| 617 Uint32 alpha = *srcp & amask; | |
| 618 if (alpha == 0) { | |
| 619 /* do nothing */ | |
| 620 } else if (alpha == amask) { | |
| 621 /* opaque alpha -- copy RGB, keep dst alpha */ | |
| 622 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask); | |
| 623 } else { | |
| 624 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/ | |
| 625 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */ | |
| 626 | |
| 627 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ | |
| 628 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ | |
| 629 | |
| 630 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */ | |
| 631 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */ | |
| 632 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 633 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 634 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */ | |
| 635 | |
| 636 /* blend */ | |
| 637 src1 = _mm_sub_pi16(src1, dst1);/* src1 - dst1 -> src1 */ | |
| 638 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src1 - dst1) * alpha -> src1 */ | |
| 639 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */ | |
| 640 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1 -> dst1(0A0R0G0B) */ | |
| 641 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ | |
| 642 | |
| 643 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ | |
| 644 } | |
| 645 ++srcp; | |
| 646 ++dstp; | |
| 647 }, width); | |
| 648 srcp += srcskip; | |
| 649 dstp += dstskip; | |
| 650 } | |
| 651 _mm_empty(); | |
| 652 } | |
| 653 /* End MSVC_ASMBLIT */ | |
| 654 | |
| 655 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ | |
|
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656 |
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657 #if SDL_ALTIVEC_BLITTERS |
| 1795 | 658 #if __MWERKS__ |
| 659 #pragma altivec_model on | |
| 660 #endif | |
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661 #if HAVE_ALTIVEC_H |
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662 #include <altivec.h> |
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663 #endif |
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664 #include <assert.h> |
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665 |
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666 #if (defined(__MACOSX__) && (__GNUC__ < 4)) |
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667 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ |
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668 (vector unsigned char) ( a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p ) |
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669 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ |
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670 (vector unsigned short) ( a,b,c,d,e,f,g,h ) |
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671 #else |
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672 #define VECUINT8_LITERAL(a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p) \ |
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673 (vector unsigned char) { a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p } |
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674 #define VECUINT16_LITERAL(a,b,c,d,e,f,g,h) \ |
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675 (vector unsigned short) { a,b,c,d,e,f,g,h } |
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676 #endif |
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677 |
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678 #define UNALIGNED_PTR(x) (((size_t) x) & 0x0000000F) |
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679 #define VECPRINT(msg, v) do { \ |
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680 vector unsigned int tmpvec = (vector unsigned int)(v); \ |
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681 unsigned int *vp = (unsigned int *)&tmpvec; \ |
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682 printf("%s = %08X %08X %08X %08X\n", msg, vp[0], vp[1], vp[2], vp[3]); \ |
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683 } while (0) |
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684 |
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685 /* the permuation vector that takes the high bytes out of all the appropriate shorts |
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686 (vector unsigned char)( |
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687 0x00, 0x10, 0x02, 0x12, |
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688 0x04, 0x14, 0x06, 0x16, |
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689 0x08, 0x18, 0x0A, 0x1A, |
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690 0x0C, 0x1C, 0x0E, 0x1E ); |
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691 */ |
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692 #define VEC_MERGE_PERMUTE() (vec_add(vec_lvsl(0, (int*)NULL), (vector unsigned char)vec_splat_u16(0x0F))) |
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693 #define VEC_U32_24() (vec_add(vec_splat_u32(12), vec_splat_u32(12))) |
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694 #define VEC_ALPHA_MASK() ((vector unsigned char)vec_sl((vector unsigned int)vec_splat_s8(-1), VEC_U32_24())) |
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695 #define VEC_ALIGNER(src) ((UNALIGNED_PTR(src)) \ |
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696 ? vec_lvsl(0, src) \ |
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697 : vec_add(vec_lvsl(8, src), vec_splat_u8(8))) |
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698 |
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699 |
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700 #define VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1_16, v8_16) do { \ |
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701 /* vtemp1 contains source AAGGAAGGAAGGAAGG */ \ |
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702 vector unsigned short vtemp1 = vec_mule(vs, valpha); \ |
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703 /* vtemp2 contains source RRBBRRBBRRBBRRBB */ \ |
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704 vector unsigned short vtemp2 = vec_mulo(vs, valpha); \ |
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705 /* valpha2 is 255-alpha */ \ |
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706 vector unsigned char valpha2 = vec_nor(valpha, valpha); \ |
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707 /* vtemp3 contains dest AAGGAAGGAAGGAAGG */ \ |
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708 vector unsigned short vtemp3 = vec_mule(vd, valpha2); \ |
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709 /* vtemp4 contains dest RRBBRRBBRRBBRRBB */ \ |
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710 vector unsigned short vtemp4 = vec_mulo(vd, valpha2); \ |
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711 /* add source and dest */ \ |
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712 vtemp1 = vec_add(vtemp1, vtemp3); \ |
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713 vtemp2 = vec_add(vtemp2, vtemp4); \ |
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714 /* vtemp1 = (vtemp1 + 1) + ((vtemp1 + 1) >> 8) */ \ |
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715 vtemp1 = vec_add(vtemp1, v1_16); \ |
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716 vtemp3 = vec_sr(vtemp1, v8_16); \ |
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717 vtemp1 = vec_add(vtemp1, vtemp3); \ |
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718 /* vtemp2 = (vtemp2 + 1) + ((vtemp2 + 1) >> 8) */ \ |
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719 vtemp2 = vec_add(vtemp2, v1_16); \ |
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720 vtemp4 = vec_sr(vtemp2, v8_16); \ |
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721 vtemp2 = vec_add(vtemp2, vtemp4); \ |
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722 /* (>>8) and get ARGBARGBARGBARGB */ \ |
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723 vd = (vector unsigned char)vec_perm(vtemp1, vtemp2, mergePermute); \ |
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724 } while (0) |
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parents:
880
diff
changeset
|
725 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
726 /* Calculate the permute vector used for 32->32 swizzling */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
727 static vector unsigned char calc_swizzle32(const SDL_PixelFormat *srcfmt, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
728 const SDL_PixelFormat *dstfmt) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
729 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
730 /* |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
731 * We have to assume that the bits that aren't used by other |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
732 * colors is alpha, and it's one complete byte, since some formats |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
733 * leave alpha with a zero mask, but we should still swizzle the bits. |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
734 */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
735 /* ARGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
736 const static struct SDL_PixelFormat default_pixel_format = { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
737 NULL, 0, 0, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
738 0, 0, 0, 0, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
739 16, 8, 0, 24, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
740 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
741 0, 0}; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
742 if (!srcfmt) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
743 srcfmt = &default_pixel_format; |
|
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 if (!dstfmt) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
746 dstfmt = &default_pixel_format; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
747 } |
|
1487
dc6b59e925a2
Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents:
1456
diff
changeset
|
748 const vector unsigned char plus = VECUINT8_LITERAL |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
749 ( 0x00, 0x00, 0x00, 0x00, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
750 0x04, 0x04, 0x04, 0x04, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
751 0x08, 0x08, 0x08, 0x08, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
752 0x0C, 0x0C, 0x0C, 0x0C ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
753 vector unsigned char vswiz; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
754 vector unsigned int srcvec; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
755 #define RESHIFT(X) (3 - ((X) >> 3)) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
756 Uint32 rmask = RESHIFT(srcfmt->Rshift) << (dstfmt->Rshift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
757 Uint32 gmask = RESHIFT(srcfmt->Gshift) << (dstfmt->Gshift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
758 Uint32 bmask = RESHIFT(srcfmt->Bshift) << (dstfmt->Bshift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
759 Uint32 amask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
760 /* 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
|
761 if (dstfmt->Amask) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
762 amask = ((srcfmt->Amask) ? RESHIFT(srcfmt->Ashift) : 0x10) << (dstfmt->Ashift); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
763 } else { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
764 amask = 0x10101010 & ((dstfmt->Rmask | dstfmt->Gmask | dstfmt->Bmask) ^ 0xFFFFFFFF); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
765 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
766 #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
|
767 ((unsigned int *)(char*)&srcvec)[0] = (rmask | gmask | bmask | amask); |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
768 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
|
769 return(vswiz); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
770 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
771 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
772 static void Blit32to565PixelAlphaAltivec(SDL_BlitInfo *info) |
|
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 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
775 Uint8 *src = (Uint8 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
776 int srcskip = info->s_skip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
777 Uint8 *dst = (Uint8 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
778 int dstskip = info->d_skip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
779 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
780 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
781 vector unsigned char v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
782 vector unsigned short v8_16 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
783 vector unsigned short v1_16 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
784 vector unsigned short v2_16 = vec_splat_u16(2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
785 vector unsigned short v3_16 = vec_splat_u16(3); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
786 vector unsigned int v8_32 = vec_splat_u32(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
787 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
|
788 vector unsigned short v3f = VECUINT16_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
789 0x003f, 0x003f, 0x003f, 0x003f, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
790 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
|
791 vector unsigned short vfc = VECUINT16_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
792 0x00fc, 0x00fc, 0x00fc, 0x00fc, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
793 0x00fc, 0x00fc, 0x00fc, 0x00fc); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
794 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
795 /* |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
796 0x10 - 0x1f is the alpha |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
797 0x00 - 0x0e evens are the red |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
798 0x01 - 0x0f odds are zero |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
799 */ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
800 vector unsigned char vredalpha1 = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
801 0x10, 0x00, 0x01, 0x01, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
802 0x10, 0x02, 0x01, 0x01, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
803 0x10, 0x04, 0x01, 0x01, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
804 0x10, 0x06, 0x01, 0x01 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
805 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
806 vector unsigned char vredalpha2 = (vector unsigned char)( |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
807 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
|
808 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
809 /* |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
810 0x00 - 0x0f is ARxx ARxx ARxx ARxx |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
811 0x11 - 0x0f odds are blue |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
812 */ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
813 vector unsigned char vblue1 = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
814 0x00, 0x01, 0x02, 0x11, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
815 0x04, 0x05, 0x06, 0x13, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
816 0x08, 0x09, 0x0a, 0x15, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
817 0x0c, 0x0d, 0x0e, 0x17 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
818 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
819 vector unsigned char vblue2 = (vector unsigned char)( |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
820 vec_add((vector unsigned int)vblue1, v8_32) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
821 ); |
|
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 0x00 - 0x0f is ARxB ARxB ARxB ARxB |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
824 0x10 - 0x0e evens are green |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
825 */ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
826 vector unsigned char vgreen1 = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
827 0x00, 0x01, 0x10, 0x03, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
828 0x04, 0x05, 0x12, 0x07, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
829 0x08, 0x09, 0x14, 0x0b, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
830 0x0c, 0x0d, 0x16, 0x0f |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
831 ); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
832 vector unsigned char vgreen2 = (vector unsigned char)( |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
833 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
|
834 ); |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
835 vector unsigned char vgmerge = VECUINT8_LITERAL( |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
836 0x00, 0x02, 0x00, 0x06, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
837 0x00, 0x0a, 0x00, 0x0e, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
838 0x00, 0x12, 0x00, 0x16, |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
839 0x00, 0x1a, 0x00, 0x1e); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
840 vector unsigned char mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
841 vector unsigned char vpermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
842 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
|
843 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
844 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
|
845 vf800 = vec_sl(vf800, vec_splat_u16(8)); |
|
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 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
848 int extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
849 vector unsigned char valigner; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
850 vector unsigned char vsrc; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
851 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
852 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
853 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
854 #define ONE_PIXEL_BLEND(condition, widthvar) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
855 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
|
856 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
857 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
|
858 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
|
859 if(sA) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
860 unsigned short dstpixel = *((unsigned short *)dst); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
861 dR = (dstpixel >> 8) & 0xf8; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
862 dG = (dstpixel >> 3) & 0xfc; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
863 dB = (dstpixel << 3) & 0xf8; \ |
| 4293 | 864 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
865 *((unsigned short *)dst) = ( \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
866 ((dR & 0xf8) << 8) | ((dG & 0xfc) << 3) | (dB >> 3) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
867 ); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
868 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
869 src += 4; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
870 dst += 2; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
871 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
872 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
873 ONE_PIXEL_BLEND((UNALIGNED_PTR(dst)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
874 extrawidth = (width % 8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
875 valigner = VEC_ALIGNER(src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
876 vsrc = (vector unsigned char)vec_ld(0, src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
877 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
878 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
879 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
880 vector unsigned char vsrc1, vsrc2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
881 vector unsigned char vdst1, vdst2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
882 vector unsigned short vR, vG, vB; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
883 vector unsigned short vpixel, vrpixel, vgpixel, vbpixel; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
884 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
885 /* Load 8 pixels from src as ARGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
886 voverflow = (vector unsigned char)vec_ld(15, src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
887 vsrc = vec_perm(vsrc, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
888 vsrc1 = vec_perm(vsrc, vsrc, vpermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
889 src += 16; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
890 vsrc = (vector unsigned char)vec_ld(15, src); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
891 voverflow = vec_perm(voverflow, vsrc, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
892 vsrc2 = vec_perm(voverflow, voverflow, vpermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
893 src += 16; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
894 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
895 /* Load 8 pixels from dst as XRGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
896 voverflow = vec_ld(0, dst); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
897 vR = vec_and((vector unsigned short)voverflow, vf800); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
898 vB = vec_sl((vector unsigned short)voverflow, v3_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
899 vG = vec_sl(vB, v2_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
900 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
|
901 vdst1 = vec_perm(vdst1, (vector unsigned char)vB, vblue1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
902 vdst1 = vec_perm(vdst1, (vector unsigned char)vG, vgreen1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
903 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
|
904 vdst2 = vec_perm(vdst2, (vector unsigned char)vB, vblue2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
905 vdst2 = vec_perm(vdst2, (vector unsigned char)vG, vgreen2); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
906 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
907 /* Alpha blend 8 pixels as ARGB */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
908 valpha = vec_perm(vsrc1, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
909 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
|
910 valpha = vec_perm(vsrc2, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
911 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
|
912 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
913 /* Convert 8 pixels to 565 */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
914 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
|
915 vgpixel = (vector unsigned short)vec_perm(vdst1, vdst2, vgmerge); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
916 vgpixel = vec_and(vgpixel, vfc); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
917 vgpixel = vec_sl(vgpixel, v3_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
918 vrpixel = vec_sl(vpixel, v1_16); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
919 vrpixel = vec_and(vrpixel, vf800); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
920 vbpixel = vec_and(vpixel, v3f); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
921 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
|
922 vdst1 = vec_or(vdst1, (vector unsigned char)vbpixel); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
923 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
924 /* Store 8 pixels */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
925 vec_st(vdst1, 0, dst); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
926 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
927 width -= 8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
928 dst += 16; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
929 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
930 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
931 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
932 src += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
933 dst += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
934 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
935 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
936 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
937 static void Blit32to32SurfaceAlphaKeyAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
938 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
939 unsigned alpha = info->src->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
940 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
941 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
942 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
943 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
944 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
945 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
946 SDL_PixelFormat *dstfmt = info->dst; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
947 unsigned sA = srcfmt->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
948 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
949 Uint32 rgbmask = srcfmt->Rmask | srcfmt->Gmask | srcfmt->Bmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
950 Uint32 ckey = info->src->colorkey; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
951 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
952 vector unsigned char vsrcPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
953 vector unsigned char vdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
954 vector unsigned char vsdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
955 vector unsigned char valpha; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
956 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
957 vector unsigned char vbits; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
958 vector unsigned char v0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
959 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
960 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
961 vector unsigned int vckey; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
962 vector unsigned int vrgbmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
963 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
964 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
965 v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
966 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
967 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
968 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
969 /* set the alpha to 255 on the destination surf */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
970 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
971 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
972 vsrcPermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
973 vdstPermute = calc_swizzle32(NULL, dstfmt); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
974 vsdstPermute = calc_swizzle32(dstfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
975 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
976 /* set a vector full of alpha and 255-alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
977 ((unsigned char *)&valpha)[0] = alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
978 valpha = vec_splat(valpha, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
979 vbits = (vector unsigned char)vec_splat_s8(-1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
980 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
981 ckey &= rgbmask; |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
982 ((unsigned int *)(char*)&vckey)[0] = ckey; |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
983 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
|
984 ((unsigned int *)(char*)&vrgbmask)[0] = rgbmask; |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
985 vrgbmask = vec_splat(vrgbmask, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
986 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
987 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
988 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
989 #define ONE_PIXEL_BLEND(condition, widthvar) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
990 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
|
991 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
992 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
|
993 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
|
994 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
|
995 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
996 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \ |
| 4293 | 997 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
998 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
999 } \ |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
1000 dstp++; \ |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
1001 srcp++; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1002 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1003 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1004 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1005 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1006 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1007 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1008 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
|
1009 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1010 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1011 vector unsigned char vsel; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1012 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1013 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1014 vector unsigned char vd_orig; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1015 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1016 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1017 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1018 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1019 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1020 /* vsel is set for items that match the key */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1021 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
|
1022 vsel = (vector unsigned char)vec_cmpeq((vector unsigned int)vsel, vckey); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1023 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1024 /* permute to source format */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1025 vs = vec_perm(vs, valpha, vsrcPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1026 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1027 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1028 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1029 vd_orig = vd = vec_perm(vd, v0, vsdstPermute); |
|
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 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
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 /* set the alpha channel to full on */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1034 vd = vec_or(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1035 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1036 /* mask out color key */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1037 vd = vec_sel(vd, vd_orig, vsel); |
|
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 /* permute to dest format */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1040 vd = vec_perm(vd, vbits, vdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1041 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1042 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1043 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1044 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1045 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1046 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1047 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1048 vs = voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1049 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1050 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1051 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1052 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1053 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1054 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1055 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1056 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1057 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1058 |
|
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 static void Blit32to32PixelAlphaAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1061 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1062 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1063 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1064 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1065 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1066 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1067 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1068 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1069 SDL_PixelFormat *dstfmt = info->dst; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1070 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1071 vector unsigned char valphaPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1072 vector unsigned char vsrcPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1073 vector unsigned char vdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1074 vector unsigned char vsdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1075 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1076 vector unsigned char vpixelmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1077 vector unsigned char v0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1078 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1079 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1080 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1081 v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1082 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1083 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1084 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1085 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1086 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
|
1087 vpixelmask = vec_nor(valphamask, v0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1088 vsrcPermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1089 vdstPermute = calc_swizzle32(NULL, dstfmt); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1090 vsdstPermute = calc_swizzle32(dstfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1091 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1092 while ( height-- ) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1093 width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1094 #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
|
1095 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1096 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
|
1097 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
|
1098 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
|
1099 DISEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, Pixel, dR, dG, dB, dA); \ |
| 4293 | 1100 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1101 ASSEMBLE_RGBA((Uint8 *)dstp, 4, dstfmt, dR, dG, dB, dA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1102 } \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1103 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1104 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1105 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1106 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1107 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1108 if (width > 0) { |
|
1487
dc6b59e925a2
Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents:
1456
diff
changeset
|
1109 /* vsrcPermute */ |
|
dc6b59e925a2
Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents:
1456
diff
changeset
|
1110 /* vdstPermute */ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1111 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1112 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1113 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
|
1114 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1115 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1116 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1117 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1118 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1119 vector unsigned char vdstalpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1120 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1121 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1122 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1123 vs = vec_perm(vs, v0, vsrcPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1124 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1125 valpha = vec_perm(vs, v0, valphaPermute); |
|
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 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1128 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1129 vd = vec_perm(vd, v0, vsdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1130 vdstalpha = vec_and(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1131 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1132 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
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 /* set the alpha to the dest alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1135 vd = vec_and(vd, vpixelmask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1136 vd = vec_or(vd, vdstalpha); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1137 vd = vec_perm(vd, v0, vdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1138 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1139 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1140 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1141 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1142 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1143 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1144 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1145 vs = voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1146 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1147 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1148 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1149 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1150 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1151 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1152 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1153 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1154 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1155 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1156 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1157 static void BlitRGBtoRGBPixelAlphaAltivec(SDL_BlitInfo *info) |
|
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 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1160 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1161 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1162 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1163 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1164 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1165 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1166 vector unsigned char valphaPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1167 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1168 vector unsigned char vpixelmask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1169 vector unsigned char v0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1170 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1171 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1172 v0 = vec_splat_u8(0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1173 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1174 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1175 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1176 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1177 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
|
1178 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1179 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1180 vpixelmask = vec_nor(valphamask, v0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1181 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1182 width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1183 #define ONE_PIXEL_BLEND(condition, widthvar) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1184 while ((condition)) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1185 Uint32 dalpha; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1186 Uint32 d; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1187 Uint32 s1; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1188 Uint32 d1; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1189 Uint32 s = *srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1190 Uint32 alpha = s >> 24; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1191 if(alpha) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1192 if(alpha == SDL_ALPHA_OPAQUE) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1193 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1194 } else { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1195 d = *dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1196 dalpha = d & 0xff000000; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1197 s1 = s & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1198 d1 = d & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1199 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1200 s &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1201 d &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1202 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1203 *dstp = d1 | d | dalpha; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1204 } \ |
|
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 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1207 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1208 widthvar--; \ |
|
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 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1211 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1212 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1213 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1214 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
|
1215 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1216 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1217 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1218 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1219 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1220 vector unsigned char vdstalpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1221 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1222 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1223 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1224 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1225 valpha = vec_perm(vs, v0, valphaPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1226 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1227 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1228 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1229 vdstalpha = vec_and(vd, valphamask); |
|
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 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1232 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1233 /* set the alpha to the dest alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1234 vd = vec_and(vd, vpixelmask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1235 vd = vec_or(vd, vdstalpha); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1236 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1237 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1238 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1239 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1240 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1241 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1242 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1243 vs = voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1244 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1245 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1246 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1247 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1248 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1249 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1250 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1251 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1252 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1253 static void Blit32to32SurfaceAlphaAltivec(SDL_BlitInfo *info) |
|
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 /* XXX : 6 */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1256 unsigned alpha = info->src->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1257 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1258 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1259 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1260 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1261 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1262 SDL_PixelFormat *srcfmt = info->src; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1263 SDL_PixelFormat *dstfmt = info->dst; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1264 unsigned sA = srcfmt->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1265 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1266 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1267 vector unsigned char vsrcPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1268 vector unsigned char vdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1269 vector unsigned char vsdstPermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1270 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1271 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1272 vector unsigned char vbits; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1273 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1274 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1275 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1276 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1277 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1278 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1279 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1280 /* set the alpha to 255 on the destination surf */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1281 valphamask = VEC_ALPHA_MASK(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1282 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1283 vsrcPermute = calc_swizzle32(srcfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1284 vdstPermute = calc_swizzle32(NULL, dstfmt); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1285 vsdstPermute = calc_swizzle32(dstfmt, NULL); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1286 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1287 /* set a vector full of alpha and 255-alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1288 ((unsigned char *)&valpha)[0] = alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1289 valpha = vec_splat(valpha, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1290 vbits = (vector unsigned char)vec_splat_s8(-1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1291 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1292 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1293 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1294 #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
|
1295 Uint32 Pixel; \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1296 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
|
1297 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
|
1298 DISEMBLE_RGB(((Uint8 *)dstp), 4, dstfmt, Pixel, dR, dG, dB); \ |
| 4293 | 1299 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); \ |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1300 ASSEMBLE_RGBA(((Uint8 *)dstp), 4, dstfmt, dR, dG, dB, dA); \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1301 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1302 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1303 widthvar--; \ |
|
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 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1306 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1307 int extrawidth = (width % 4); |
|
3910
af4d584e0edb
Handle source data alignment correctly in Blit32to32SurfaceAlphaAltivec().
Ryan C. Gordon <icculus@icculus.org>
parents:
3899
diff
changeset
|
1308 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1309 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
|
1310 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1311 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1312 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1313 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1314 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1315 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1316 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1317 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1318 vs = vec_perm(vs, valpha, vsrcPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1319 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1320 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1321 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1322 vd = vec_perm(vd, vd, vsdstPermute); |
|
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 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
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 /* set the alpha channel to full on */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1327 vd = vec_or(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1328 vd = vec_perm(vd, vbits, vdstPermute); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1329 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1330 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1331 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1332 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1333 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1334 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1335 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1336 vs = voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1337 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1338 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1339 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1340 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1341 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1342 srcp += srcskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1343 dstp += dstskip; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1344 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1345 |
|
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 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1348 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1349 /* fast RGB888->(A)RGB888 blending */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1350 static void BlitRGBtoRGBSurfaceAlphaAltivec(SDL_BlitInfo *info) |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1351 { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1352 unsigned alpha = info->src->alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1353 int height = info->d_height; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1354 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1355 int srcskip = info->s_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1356 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1357 int dstskip = info->d_skip >> 2; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1358 vector unsigned char mergePermute; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1359 vector unsigned char valpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1360 vector unsigned char valphamask; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1361 vector unsigned short v1; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1362 vector unsigned short v8; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1363 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1364 mergePermute = VEC_MERGE_PERMUTE(); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1365 v1 = vec_splat_u16(1); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1366 v8 = vec_splat_u16(8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1367 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1368 /* set the alpha to 255 on the destination surf */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1369 valphamask = VEC_ALPHA_MASK(); |
|
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 /* set a vector full of alpha and 255-alpha */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1372 ((unsigned char *)&valpha)[0] = alpha; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1373 valpha = vec_splat(valpha, 0); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1374 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1375 while(height--) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1376 int width = info->d_width; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1377 #define ONE_PIXEL_BLEND(condition, widthvar) while ((condition)) { \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1378 Uint32 s = *srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1379 Uint32 d = *dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1380 Uint32 s1 = s & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1381 Uint32 d1 = d & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1382 d1 = (d1 + ((s1 - d1) * alpha >> 8)) \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1383 & 0xff00ff; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1384 s &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1385 d &= 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1386 d = (d + ((s - d) * alpha >> 8)) & 0xff00; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1387 *dstp = d1 | d | 0xff000000; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1388 ++srcp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1389 ++dstp; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1390 widthvar--; \ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1391 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1392 ONE_PIXEL_BLEND((UNALIGNED_PTR(dstp)) && (width), width); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1393 if (width > 0) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1394 int extrawidth = (width % 4); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1395 vector unsigned char valigner = VEC_ALIGNER(srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1396 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
|
1397 width -= extrawidth; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1398 while (width) { |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1399 vector unsigned char voverflow; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1400 vector unsigned char vd; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1401 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1402 /* s = *srcp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1403 voverflow = (vector unsigned char)vec_ld(15, srcp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1404 vs = vec_perm(vs, voverflow, valigner); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1405 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1406 /* d = *dstp */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1407 vd = (vector unsigned char)vec_ld(0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1408 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1409 VEC_MULTIPLY_ALPHA(vs, vd, valpha, mergePermute, v1, v8); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1410 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1411 /* set the alpha channel to full on */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1412 vd = vec_or(vd, valphamask); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1413 |
|
ffaaf7ecf685
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Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1414 /* *dstp = res */ |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
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|
1415 vec_st((vector unsigned int)vd, 0, dstp); |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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880
diff
changeset
|
1416 |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1417 srcp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
1418 dstp += 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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880
diff
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|
1419 width -= 4; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1420 vs = voverflow; |
|
ffaaf7ecf685
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Ryan C. Gordon <icculus@icculus.org>
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diff
changeset
|
1421 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1422 ONE_PIXEL_BLEND((extrawidth), extrawidth); |
|
ffaaf7ecf685
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Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1423 } |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1424 #undef ONE_PIXEL_BLEND |
|
ffaaf7ecf685
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Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1425 |
|
ffaaf7ecf685
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Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1426 srcp += srcskip; |
|
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Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1427 dstp += dstskip; |
|
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Ryan C. Gordon <icculus@icculus.org>
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diff
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|
1428 } |
|
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Ryan C. Gordon <icculus@icculus.org>
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diff
changeset
|
1429 } |
| 1795 | 1430 #if __MWERKS__ |
| 1431 #pragma altivec_model off | |
| 1432 #endif | |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
1433 #endif /* SDL_ALTIVEC_BLITTERS */ |
|
1047
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|
1434 |
|
1
cf2af46e9e2a
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0
diff
changeset
|
1435 /* 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:
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diff
changeset
|
1436 static void BlitRGBtoRGBSurfaceAlpha128(SDL_BlitInfo *info) |
| 0 | 1437 { |
| 1438 int width = info->d_width; | |
| 1439 int height = info->d_height; | |
| 1440 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 1441 int srcskip = info->s_skip >> 2; | |
| 1442 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 1443 int dstskip = info->d_skip >> 2; | |
| 1444 | |
| 1445 while(height--) { | |
| 1446 DUFFS_LOOP4({ | |
|
1
cf2af46e9e2a
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diff
changeset
|
1447 Uint32 s = *srcp++; |
|
cf2af46e9e2a
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0
diff
changeset
|
1448 Uint32 d = *dstp; |
|
cf2af46e9e2a
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diff
changeset
|
1449 *dstp++ = ((((s & 0x00fefefe) + (d & 0x00fefefe)) >> 1) |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
1450 + (s & d & 0x00010101)) | 0xff000000; |
| 0 | 1451 }, width); |
| 1452 srcp += srcskip; | |
| 1453 dstp += dstskip; | |
| 1454 } | |
| 1455 } | |
| 1456 | |
|
1
cf2af46e9e2a
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Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
1457 /* fast RGB888->(A)RGB888 blending with surface alpha */ |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
1458 static void BlitRGBtoRGBSurfaceAlpha(SDL_BlitInfo *info) |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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diff
changeset
|
1459 { |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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diff
changeset
|
1460 unsigned alpha = info->src->alpha; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
1461 if(alpha == 128) { |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
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0
diff
changeset
|
1462 BlitRGBtoRGBSurfaceAlpha128(info); |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
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0
diff
changeset
|
1463 } else { |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
1464 int width = info->d_width; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
1465 int height = info->d_height; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
1466 Uint32 *srcp = (Uint32 *)info->s_pixels; |
|
cf2af46e9e2a
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Sam Lantinga <slouken@lokigames.com>
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0
diff
changeset
|
1467 int srcskip = info->s_skip >> 2; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
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diff
changeset
|
1468 Uint32 *dstp = (Uint32 *)info->d_pixels; |
|
cf2af46e9e2a
Changes since SDL 1.2.0 release
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diff
changeset
|
1469 int dstskip = info->d_skip >> 2; |
|
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|
1470 Uint32 s; |
|
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1471 Uint32 d; |
|
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|
1472 Uint32 s1; |
|
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|
1473 Uint32 d1; |
|
1
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|
1474 |
|
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Changes since SDL 1.2.0 release
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|
1475 while(height--) { |
|
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|
1476 DUFFS_LOOP_DOUBLE2({ |
|
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|
1477 /* One Pixel Blend */ |
|
1
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|
1478 s = *srcp; |
|
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|
1479 d = *dstp; |
|
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|
1480 s1 = s & 0xff00ff; |
|
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|
1481 d1 = d & 0xff00ff; |
|
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|
1482 d1 = (d1 + ((s1 - d1) * alpha >> 8)) |
|
cf2af46e9e2a
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|
1483 & 0xff00ff; |
|
cf2af46e9e2a
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|
1484 s &= 0xff00; |
|
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|
1485 d &= 0xff00; |
|
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|
1486 d = (d + ((s - d) * alpha >> 8)) & 0xff00; |
|
cf2af46e9e2a
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|
1487 *dstp = d1 | d | 0xff000000; |
|
cf2af46e9e2a
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|
1488 ++srcp; |
|
cf2af46e9e2a
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|
1489 ++dstp; |
|
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|
1490 },{ |
|
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|
1491 /* Two Pixels Blend */ |
|
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|
1492 s = *srcp; |
|
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|
1493 d = *dstp; |
|
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|
1494 s1 = s & 0xff00ff; |
|
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|
1495 d1 = d & 0xff00ff; |
|
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|
1496 d1 += (s1 - d1) * alpha >> 8; |
|
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|
1497 d1 &= 0xff00ff; |
|
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|
1498 |
|
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|
1499 s = ((s & 0xff00) >> 8) | |
|
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1500 ((srcp[1] & 0xff00) << 8); |
|
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|
1501 d = ((d & 0xff00) >> 8) | |
|
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|
1502 ((dstp[1] & 0xff00) << 8); |
|
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|
1503 d += (s - d) * alpha >> 8; |
|
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|
1504 d &= 0x00ff00ff; |
|
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1505 |
|
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|
1506 *dstp++ = d1 | ((d << 8) & 0xff00) | 0xff000000; |
|
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|
1507 ++srcp; |
|
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1508 |
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1509 s1 = *srcp; |
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|
1510 d1 = *dstp; |
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|
1511 s1 &= 0xff00ff; |
|
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|
1512 d1 &= 0xff00ff; |
|
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|
1513 d1 += (s1 - d1) * alpha >> 8; |
|
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|
1514 d1 &= 0xff00ff; |
|
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|
1515 |
|
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|
1516 *dstp = d1 | ((d >> 8) & 0xff00) | 0xff000000; |
|
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|
1517 ++srcp; |
|
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|
1518 ++dstp; |
|
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|
1519 }, width); |
|
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|
1520 srcp += srcskip; |
|
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|
1521 dstp += dstskip; |
|
cf2af46e9e2a
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|
1522 } |
|
cf2af46e9e2a
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changeset
|
1523 } |
|
cf2af46e9e2a
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changeset
|
1524 } |
|
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|
1525 |
| 0 | 1526 /* fast ARGB888->(A)RGB888 blending with pixel alpha */ |
| 1527 static void BlitRGBtoRGBPixelAlpha(SDL_BlitInfo *info) | |
| 1528 { | |
| 1529 int width = info->d_width; | |
| 1530 int height = info->d_height; | |
| 1531 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 1532 int srcskip = info->s_skip >> 2; | |
| 1533 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 1534 int dstskip = info->d_skip >> 2; | |
| 1535 | |
| 1536 while(height--) { | |
| 1537 DUFFS_LOOP4({ | |
| 1538 Uint32 dalpha; | |
| 1539 Uint32 d; | |
| 1540 Uint32 s1; | |
| 1541 Uint32 d1; | |
| 1542 Uint32 s = *srcp; | |
| 1543 Uint32 alpha = s >> 24; | |
| 1544 /* FIXME: Here we special-case opaque alpha since the | |
| 1545 compositioning used (>>8 instead of /255) doesn't handle | |
| 1546 it correctly. Also special-case alpha=0 for speed? | |
| 1547 Benchmark this! */ | |
|
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|
1548 if(alpha) { |
|
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|
1549 if(alpha == SDL_ALPHA_OPAQUE) { |
| 0 | 1550 *dstp = (s & 0x00ffffff) | (*dstp & 0xff000000); |
|
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|
1551 } else { |
| 0 | 1552 /* |
| 1553 * take out the middle component (green), and process | |
| 1554 * the other two in parallel. One multiply less. | |
| 1555 */ | |
| 1556 d = *dstp; | |
| 1557 dalpha = d & 0xff000000; | |
| 1558 s1 = s & 0xff00ff; | |
| 1559 d1 = d & 0xff00ff; | |
| 1560 d1 = (d1 + ((s1 - d1) * alpha >> 8)) & 0xff00ff; | |
| 1561 s &= 0xff00; | |
| 1562 d &= 0xff00; | |
| 1563 d = (d + ((s - d) * alpha >> 8)) & 0xff00; | |
| 1564 *dstp = d1 | d | dalpha; | |
|
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1565 } |
| 0 | 1566 } |
| 1567 ++srcp; | |
| 1568 ++dstp; | |
| 1569 }, width); | |
| 1570 srcp += srcskip; | |
| 1571 dstp += dstskip; | |
| 1572 } | |
| 1573 } | |
| 1574 | |
| 1542 | 1575 #if GCC_ASMBLIT |
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1576 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ |
| 3870 | 1577 static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) |
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1578 { |
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1579 int width = info->d_width; |
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1580 int height = info->d_height; |
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1581 Uint32 *srcp = (Uint32 *)info->s_pixels; |
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1582 int srcskip = info->s_skip >> 2; |
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1583 Uint32 *dstp = (Uint32 *)info->d_pixels; |
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1584 int dstskip = info->d_skip >> 2; |
| 1542 | 1585 SDL_PixelFormat* sf = info->src; |
| 1586 Uint32 amask = sf->Amask; | |
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1587 |
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1588 __asm__ ( |
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1589 /* make mm6 all zeros. */ |
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1590 "pxor %%mm6, %%mm6\n" |
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1591 |
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1592 /* Make a mask to preserve the alpha. */ |
| 1542 | 1593 "movd %0, %%mm7\n\t" /* 0000F000 -> mm7 */ |
| 1594 "punpcklbw %%mm7, %%mm7\n\t" /* FF000000 -> mm7 */ | |
| 1595 "pcmpeqb %%mm4, %%mm4\n\t" /* FFFFFFFF -> mm4 */ | |
| 1596 "movq %%mm4, %%mm3\n\t" /* FFFFFFFF -> mm3 (for later) */ | |
| 1597 "pxor %%mm4, %%mm7\n\t" /* 00FFFFFF -> mm7 (mult mask) */ | |
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1598 |
| 1542 | 1599 /* form channel masks */ |
| 1600 "movq %%mm7, %%mm4\n\t" /* 00FFFFFF -> mm4 */ | |
| 1601 "packsswb %%mm6, %%mm4\n\t" /* 00000FFF -> mm4 (channel mask) */ | |
| 1602 "packsswb %%mm6, %%mm3\n\t" /* 0000FFFF -> mm3 */ | |
| 1603 "pxor %%mm4, %%mm3\n\t" /* 0000F000 -> mm3 (~channel mask) */ | |
| 1604 | |
| 1605 /* get alpha channel shift */ | |
| 1606 "movd %1, %%mm5\n\t" /* Ashift -> mm5 */ | |
| 1607 | |
|
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1608 : /* nothing */ : "rm" (amask), "rm" ((Uint32) sf->Ashift) ); |
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1609 |
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1610 while(height--) { |
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1611 |
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1612 DUFFS_LOOP4({ |
| 1542 | 1613 Uint32 alpha; |
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1614 |
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1615 __asm__ ( |
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1616 "prefetch 64(%0)\n" |
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1617 "prefetch 64(%1)\n" |
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1618 : : "r" (srcp), "r" (dstp) ); |
|
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1619 |
| 1542 | 1620 alpha = *srcp & amask; |
|
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1621 /* FIXME: Here we special-case opaque alpha since the |
|
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1622 compositioning used (>>8 instead of /255) doesn't handle |
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1623 it correctly. Also special-case alpha=0 for speed? |
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1624 Benchmark this! */ |
| 1542 | 1625 if(alpha == 0) { |
| 1626 /* do nothing */ | |
| 1627 } | |
| 1628 else if(alpha == amask) { | |
| 1629 /* opaque alpha -- copy RGB, keep dst alpha */ | |
| 1630 /* using MMX here to free up regular registers for other things */ | |
| 1631 __asm__ ( | |
| 1632 "movd (%0), %%mm0\n\t" /* src(ARGB) -> mm0 (0000ARGB)*/ | |
| 1633 "movd (%1), %%mm1\n\t" /* dst(ARGB) -> mm1 (0000ARGB)*/ | |
| 1634 "pand %%mm4, %%mm0\n\t" /* src & chanmask -> mm0 */ | |
| 1635 "pand %%mm3, %%mm1\n\t" /* dst & ~chanmask -> mm2 */ | |
| 1636 "por %%mm0, %%mm1\n\t" /* src | dst -> mm1 */ | |
| 1637 "movd %%mm1, (%1) \n\t" /* mm1 -> dst */ | |
| 1638 | |
| 1639 : : "r" (srcp), "r" (dstp) ); | |
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1640 } |
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1641 |
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1642 else { |
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1643 __asm__ ( |
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1644 /* load in the source, and dst. */ |
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1645 "movd (%0), %%mm0\n" /* mm0(s) = 0 0 0 0 | As Rs Gs Bs */ |
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1646 "movd (%1), %%mm1\n" /* mm1(d) = 0 0 0 0 | Ad Rd Gd Bd */ |
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1647 |
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1648 /* Move the src alpha into mm2 */ |
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1649 |
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1650 /* if supporting pshufw */ |
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1651 /*"pshufw $0x55, %%mm0, %%mm2\n" */ /* mm2 = 0 As 0 As | 0 As 0 As */ |
|
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1652 /*"psrlw $8, %%mm2\n" */ |
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1653 |
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1654 /* else: */ |
| 1542 | 1655 "movd %2, %%mm2\n" |
| 1656 "psrld %%mm5, %%mm2\n" /* mm2 = 0 0 0 0 | 0 0 0 As */ | |
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1657 "punpcklwd %%mm2, %%mm2\n" /* mm2 = 0 0 0 0 | 0 As 0 As */ |
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1658 "punpckldq %%mm2, %%mm2\n" /* mm2 = 0 As 0 As | 0 As 0 As */ |
| 1542 | 1659 "pand %%mm7, %%mm2\n" /* to preserve dest alpha */ |
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1660 |
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1661 /* move the colors into words. */ |
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1662 "punpcklbw %%mm6, %%mm0\n" /* mm0 = 0 As 0 Rs | 0 Gs 0 Bs */ |
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1663 "punpcklbw %%mm6, %%mm1\n" /* mm0 = 0 Ad 0 Rd | 0 Gd 0 Bd */ |
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1664 |
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1665 /* src - dst */ |
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1666 "psubw %%mm1, %%mm0\n" /* mm0 = As-Ad Rs-Rd | Gs-Gd Bs-Bd */ |
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1667 |
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1668 /* A * (src-dst) */ |
| 1542 | 1669 "pmullw %%mm2, %%mm0\n" /* mm0 = 0*As-d As*Rs-d | As*Gs-d As*Bs-d */ |
| 1670 "psrlw $8, %%mm0\n" /* mm0 = 0>>8 Rc>>8 | Gc>>8 Bc>>8 */ | |
| 1671 "paddb %%mm1, %%mm0\n" /* mm0 = 0+Ad Rc+Rd | Gc+Gd Bc+Bd */ | |
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1672 |
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1673 "packuswb %%mm0, %%mm0\n" /* mm0 = | Ac Rc Gc Bc */ |
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1674 |
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1675 "movd %%mm0, (%1)\n" /* result in mm0 */ |
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1676 |
| 1542 | 1677 : : "r" (srcp), "r" (dstp), "r" (alpha) ); |
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1678 |
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1679 } |
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1680 ++srcp; |
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1681 ++dstp; |
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1682 }, width); |
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1683 srcp += srcskip; |
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1684 dstp += dstskip; |
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1685 } |
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1686 |
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1687 __asm__ ( |
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1688 "emms\n" |
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1689 : ); |
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1690 } |
| 1542 | 1691 /* End GCC_ASMBLIT*/ |
| 1692 | |
| 1693 #elif MSVC_ASMBLIT | |
| 1694 /* fast (as in MMX with prefetch) ARGB888->(A)RGB888 blending with pixel alpha */ | |
| 1695 static void BlitRGBtoRGBPixelAlphaMMX3DNOW(SDL_BlitInfo *info) | |
| 1696 { | |
| 1697 int width = info->d_width; | |
| 1698 int height = info->d_height; | |
| 1699 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 1700 int srcskip = info->s_skip >> 2; | |
| 1701 Uint32 *dstp = (Uint32 *)info->d_pixels; | |
| 1702 int dstskip = info->d_skip >> 2; | |
| 1703 SDL_PixelFormat* sf = info->src; | |
| 1704 Uint32 chanmask = sf->Rmask | sf->Gmask | sf->Bmask; | |
| 1705 Uint32 amask = sf->Amask; | |
| 1706 Uint32 ashift = sf->Ashift; | |
| 1707 Uint64 multmask; | |
| 1708 | |
| 1709 __m64 src1, dst1, mm_alpha, mm_zero, dmask; | |
| 1710 | |
| 1711 mm_zero = _mm_setzero_si64(); /* 0 -> mm_zero */ | |
| 1712 multmask = ~(0xFFFFi64 << (ashift * 2)); | |
| 1713 dmask = *(__m64*) &multmask; /* dst alpha mask -> dmask */ | |
| 1714 | |
| 1715 while(height--) { | |
| 1716 DUFFS_LOOP4({ | |
| 1717 Uint32 alpha; | |
| 1718 | |
| 1719 _m_prefetch(srcp + 16); | |
| 1720 _m_prefetch(dstp + 16); | |
| 1721 | |
| 1722 alpha = *srcp & amask; | |
| 1723 if (alpha == 0) { | |
| 1724 /* do nothing */ | |
| 1725 } else if (alpha == amask) { | |
| 1726 /* copy RGB, keep dst alpha */ | |
| 1727 *dstp = (*srcp & chanmask) | (*dstp & ~chanmask); | |
| 1728 } else { | |
| 1729 src1 = _mm_cvtsi32_si64(*srcp); /* src(ARGB) -> src1 (0000ARGB)*/ | |
| 1730 src1 = _mm_unpacklo_pi8(src1, mm_zero); /* 0A0R0G0B -> src1 */ | |
| 1731 | |
| 1732 dst1 = _mm_cvtsi32_si64(*dstp); /* dst(ARGB) -> dst1 (0000ARGB)*/ | |
| 1733 dst1 = _mm_unpacklo_pi8(dst1, mm_zero); /* 0A0R0G0B -> dst1 */ | |
| 1734 | |
| 1735 mm_alpha = _mm_cvtsi32_si64(alpha); /* alpha -> mm_alpha (0000000A) */ | |
| 1736 mm_alpha = _mm_srli_si64(mm_alpha, ashift); /* mm_alpha >> ashift -> mm_alpha(0000000A) */ | |
| 1737 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 1738 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 1739 mm_alpha = _mm_and_si64(mm_alpha, dmask); /* 000A0A0A -> mm_alpha, preserve dst alpha on add */ | |
| 1740 | |
| 1741 /* blend */ | |
| 1742 src1 = _mm_sub_pi16(src1, dst1);/* src - dst -> src1 */ | |
| 1743 src1 = _mm_mullo_pi16(src1, mm_alpha); /* (src - dst) * alpha -> src1 */ | |
| 1744 src1 = _mm_srli_pi16(src1, 8); /* src1 >> 8 -> src1(000R0G0B) */ | |
| 1745 dst1 = _mm_add_pi8(src1, dst1); /* src1 + dst1(dst) -> dst1(0A0R0G0B) */ | |
| 1746 dst1 = _mm_packs_pu16(dst1, mm_zero); /* 0000ARGB -> dst1 */ | |
| 1747 | |
| 1748 *dstp = _mm_cvtsi64_si32(dst1); /* dst1 -> pixel */ | |
| 1749 } | |
| 1750 ++srcp; | |
| 1751 ++dstp; | |
| 1752 }, width); | |
| 1753 srcp += srcskip; | |
| 1754 dstp += dstskip; | |
| 1755 } | |
| 1756 _mm_empty(); | |
| 1757 } | |
| 1758 /* End MSVC_ASMBLIT */ | |
| 1759 | |
| 1760 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ | |
|
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1761 |
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1762 /* 16bpp special case for per-surface alpha=50%: blend 2 pixels in parallel */ |
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1763 |
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1764 /* blend a single 16 bit pixel at 50% */ |
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1765 #define BLEND16_50(d, s, mask) \ |
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1766 ((((s & mask) + (d & mask)) >> 1) + (s & d & (~mask & 0xffff))) |
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1767 |
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1768 /* blend two 16 bit pixels at 50% */ |
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1769 #define BLEND2x16_50(d, s, mask) \ |
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1770 (((s & (mask | mask << 16)) >> 1) + ((d & (mask | mask << 16)) >> 1) \ |
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1771 + (s & d & (~(mask | mask << 16)))) |
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1772 |
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1773 static void Blit16to16SurfaceAlpha128(SDL_BlitInfo *info, Uint16 mask) |
| 0 | 1774 { |
| 1775 int width = info->d_width; | |
| 1776 int height = info->d_height; | |
| 1777 Uint16 *srcp = (Uint16 *)info->s_pixels; | |
| 1778 int srcskip = info->s_skip >> 1; | |
| 1779 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 1780 int dstskip = info->d_skip >> 1; | |
| 1781 | |
| 1782 while(height--) { | |
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1783 if(((uintptr_t)srcp ^ (uintptr_t)dstp) & 2) { |
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1784 /* |
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1785 * Source and destination not aligned, pipeline it. |
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1786 * This is mostly a win for big blits but no loss for |
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1787 * small ones |
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1788 */ |
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1789 Uint32 prev_sw; |
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1790 int w = width; |
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1791 |
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1792 /* handle odd destination */ |
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1793 if((uintptr_t)dstp & 2) { |
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1794 Uint16 d = *dstp, s = *srcp; |
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1795 *dstp = BLEND16_50(d, s, mask); |
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1796 dstp++; |
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1797 srcp++; |
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1798 w--; |
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1799 } |
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1800 srcp++; /* srcp is now 32-bit aligned */ |
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1801 |
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1802 /* bootstrap pipeline with first halfword */ |
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1803 prev_sw = ((Uint32 *)srcp)[-1]; |
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1804 |
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1805 while(w > 1) { |
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1806 Uint32 sw, dw, s; |
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1807 sw = *(Uint32 *)srcp; |
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1808 dw = *(Uint32 *)dstp; |
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1809 #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
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1810 s = (prev_sw << 16) + (sw >> 16); |
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1811 #else |
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1812 s = (prev_sw >> 16) + (sw << 16); |
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1813 #endif |
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1814 prev_sw = sw; |
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1815 *(Uint32 *)dstp = BLEND2x16_50(dw, s, mask); |
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1816 dstp += 2; |
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1817 srcp += 2; |
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1818 w -= 2; |
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1819 } |
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1820 |
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1821 /* final pixel if any */ |
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1822 if(w) { |
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1823 Uint16 d = *dstp, s; |
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1824 #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
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1825 s = (Uint16)prev_sw; |
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1826 #else |
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1827 s = (Uint16)(prev_sw >> 16); |
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1828 #endif |
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1829 *dstp = BLEND16_50(d, s, mask); |
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1830 srcp++; |
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1831 dstp++; |
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1832 } |
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1833 srcp += srcskip - 1; |
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1834 dstp += dstskip; |
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1835 } else { |
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1836 /* source and destination are aligned */ |
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1837 int w = width; |
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1838 |
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1839 /* first odd pixel? */ |
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1840 if((uintptr_t)srcp & 2) { |
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1841 Uint16 d = *dstp, s = *srcp; |
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1842 *dstp = BLEND16_50(d, s, mask); |
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1843 srcp++; |
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1844 dstp++; |
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1845 w--; |
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1846 } |
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1847 /* srcp and dstp are now 32-bit aligned */ |
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1848 |
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1849 while(w > 1) { |
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1850 Uint32 sw = *(Uint32 *)srcp; |
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1851 Uint32 dw = *(Uint32 *)dstp; |
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1852 *(Uint32 *)dstp = BLEND2x16_50(dw, sw, mask); |
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1853 srcp += 2; |
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1854 dstp += 2; |
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1855 w -= 2; |
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1856 } |
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1857 |
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1858 /* last odd pixel? */ |
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1859 if(w) { |
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1860 Uint16 d = *dstp, s = *srcp; |
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1861 *dstp = BLEND16_50(d, s, mask); |
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1862 srcp++; |
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1863 dstp++; |
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1864 } |
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1865 srcp += srcskip; |
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1866 dstp += dstskip; |
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1867 } |
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1868 } |
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1869 } |
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1870 |
| 1542 | 1871 #if GCC_ASMBLIT |
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1872 /* fast RGB565->RGB565 blending with surface alpha */ |
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1873 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) |
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1874 { |
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1875 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
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1876 if(alpha == 128) { |
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1877 Blit16to16SurfaceAlpha128(info, 0xf7de); |
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1878 } else { |
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1879 int width = info->d_width; |
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1880 int height = info->d_height; |
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1881 Uint16 *srcp = (Uint16 *)info->s_pixels; |
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1882 int srcskip = info->s_skip >> 1; |
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1883 Uint16 *dstp = (Uint16 *)info->d_pixels; |
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1884 int dstskip = info->d_skip >> 1; |
| 1542 | 1885 Uint32 s, d; |
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1886 Uint64 load; |
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1887 |
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1888 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
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1889 load = alpha; |
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1890 alpha >>= 3; /* downscale alpha to 5 bits */ |
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1891 |
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1892 movq_m2r(load, mm0); /* alpha(0000000A) -> mm0 */ |
| 1542 | 1893 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ |
| 1894 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ | |
| 1895 /* position alpha to allow for mullo and mulhi on diff channels | |
| 1896 to reduce the number of operations */ | |
| 1897 psllq_i2r(3, mm0); | |
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1898 |
| 1542 | 1899 /* Setup the 565 color channel masks */ |
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1900 load = 0x07E007E007E007E0ULL; |
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1901 movq_m2r(load, mm4); /* MASKGREEN -> mm4 */ |
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1902 load = 0x001F001F001F001FULL; |
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1903 movq_m2r(load, mm7); /* MASKBLUE -> mm7 */ |
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1904 while(height--) { |
| 1542 | 1905 DUFFS_LOOP_QUATRO2( |
| 1906 { | |
| 1907 s = *srcp++; | |
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1908 d = *dstp; |
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1909 /* |
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1910 * shift out the middle component (green) to |
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1911 * the high 16 bits, and process all three RGB |
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1912 * components at the same time. |
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1913 */ |
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1914 s = (s | s << 16) & 0x07e0f81f; |
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1915 d = (d | d << 16) & 0x07e0f81f; |
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1916 d += (s - d) * alpha >> 5; |
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1917 d &= 0x07e0f81f; |
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1918 *dstp++ = d | d >> 16; |
| 1542 | 1919 },{ |
| 1920 s = *srcp++; | |
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1921 d = *dstp; |
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1922 /* |
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1923 * shift out the middle component (green) to |
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1924 * the high 16 bits, and process all three RGB |
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1925 * components at the same time. |
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1926 */ |
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1927 s = (s | s << 16) & 0x07e0f81f; |
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1928 d = (d | d << 16) & 0x07e0f81f; |
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1929 d += (s - d) * alpha >> 5; |
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1930 d &= 0x07e0f81f; |
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1931 *dstp++ = d | d >> 16; |
| 1542 | 1932 s = *srcp++; |
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1933 d = *dstp; |
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1934 /* |
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1935 * shift out the middle component (green) to |
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1936 * the high 16 bits, and process all three RGB |
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1937 * components at the same time. |
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1938 */ |
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1939 s = (s | s << 16) & 0x07e0f81f; |
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1940 d = (d | d << 16) & 0x07e0f81f; |
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1941 d += (s - d) * alpha >> 5; |
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1942 d &= 0x07e0f81f; |
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1943 *dstp++ = d | d >> 16; |
| 1542 | 1944 },{ |
| 1945 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */ | |
| 1946 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */ | |
| 1947 | |
| 1948 /* red -- does not need a mask since the right shift clears | |
| 1949 the uninteresting bits */ | |
| 1950 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 1951 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 1952 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 [000r 000r 000r 000r] */ | |
| 1953 psrlw_i2r(11, mm6); /* mm6 >> 11 -> mm6 [000r 000r 000r 000r] */ | |
| 1954 | |
| 1955 /* blend */ | |
| 1956 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 1957 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 1958 /* alpha used is actually 11 bits | |
| 1959 11 + 5 = 16 bits, so the sign bits are lost */ | |
| 1960 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ | |
| 1961 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 1962 psllw_i2r(11, mm6); /* mm6 << 11 -> mm6 */ | |
| 1963 | |
| 1964 movq_r2r(mm6, mm1); /* save new reds in dsts */ | |
| 1965 | |
| 1966 /* green -- process the bits in place */ | |
| 1967 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 1968 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 1969 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */ | |
| 1970 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */ | |
| 1971 | |
| 1972 /* blend */ | |
| 1973 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 1974 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 1975 /* 11 + 11 - 16 = 6 bits, so all the lower uninteresting | |
| 1976 bits are gone and the sign bits present */ | |
| 1977 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ | |
| 1978 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 1979 | |
| 1980 por_r2r(mm6, mm1); /* save new greens in dsts */ | |
| 1981 | |
| 1982 /* blue */ | |
| 1983 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 1984 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 1985 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */ | |
| 1986 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 1987 | |
| 1988 /* blend */ | |
| 1989 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 1990 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 1991 /* 11 + 5 = 16 bits, so the sign bits are lost and | |
| 1992 the interesting bits will need to be MASKed */ | |
| 1993 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ | |
| 1994 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 1995 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 1996 | |
| 1997 por_r2r(mm6, mm1); /* save new blues in dsts */ | |
| 1998 | |
| 1999 movq_r2m(mm1, *dstp); /* mm1 -> 4 dst pixels */ | |
| 2000 | |
| 2001 srcp += 4; | |
| 2002 dstp += 4; | |
| 2003 }, width); | |
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2004 srcp += srcskip; |
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2005 dstp += dstskip; |
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2006 } |
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2007 emms(); |
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2008 } |
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2009 } |
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2010 |
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2011 /* fast RGB555->RGB555 blending with surface alpha */ |
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2012 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) |
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2013 { |
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2014 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
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2015 if(alpha == 128) { |
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2016 Blit16to16SurfaceAlpha128(info, 0xfbde); |
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2017 } else { |
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2018 int width = info->d_width; |
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2019 int height = info->d_height; |
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2020 Uint16 *srcp = (Uint16 *)info->s_pixels; |
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2021 int srcskip = info->s_skip >> 1; |
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2022 Uint16 *dstp = (Uint16 *)info->d_pixels; |
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2023 int dstskip = info->d_skip >> 1; |
| 1542 | 2024 Uint32 s, d; |
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2025 Uint64 load; |
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2026 |
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2027 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ |
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2028 load = alpha; |
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2029 alpha >>= 3; /* downscale alpha to 5 bits */ |
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2030 |
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2031 movq_m2r(load, mm0); /* alpha(0000000A) -> mm0 */ |
| 1542 | 2032 punpcklwd_r2r(mm0, mm0); /* 00000A0A -> mm0 */ |
| 2033 punpcklwd_r2r(mm0, mm0); /* 0A0A0A0A -> mm0 */ | |
| 2034 /* position alpha to allow for mullo and mulhi on diff channels | |
| 2035 to reduce the number of operations */ | |
| 2036 psllq_i2r(3, mm0); | |
| 2037 | |
| 2038 /* Setup the 555 color channel masks */ | |
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2039 load = 0x03E003E003E003E0ULL; |
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2040 movq_m2r(load, mm4); /* MASKGREEN -> mm4 */ |
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2041 load = 0x001F001F001F001FULL; |
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2042 movq_m2r(load, mm7); /* MASKBLUE -> mm7 */ |
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2043 while(height--) { |
| 1542 | 2044 DUFFS_LOOP_QUATRO2( |
| 2045 { | |
| 2046 s = *srcp++; | |
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2047 d = *dstp; |
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2048 /* |
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2049 * shift out the middle component (green) to |
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2050 * the high 16 bits, and process all three RGB |
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2051 * components at the same time. |
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2052 */ |
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2053 s = (s | s << 16) & 0x03e07c1f; |
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2054 d = (d | d << 16) & 0x03e07c1f; |
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2055 d += (s - d) * alpha >> 5; |
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2056 d &= 0x03e07c1f; |
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2057 *dstp++ = d | d >> 16; |
| 1542 | 2058 },{ |
| 2059 s = *srcp++; | |
|
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2060 d = *dstp; |
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2061 /* |
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2062 * shift out the middle component (green) to |
|
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2063 * the high 16 bits, and process all three RGB |
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2064 * components at the same time. |
|
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2065 */ |
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2066 s = (s | s << 16) & 0x03e07c1f; |
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2067 d = (d | d << 16) & 0x03e07c1f; |
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2068 d += (s - d) * alpha >> 5; |
|
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2069 d &= 0x03e07c1f; |
|
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2070 *dstp++ = d | d >> 16; |
|
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2071 s = *srcp++; |
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2072 d = *dstp; |
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2073 /* |
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2074 * shift out the middle component (green) to |
|
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2075 * the high 16 bits, and process all three RGB |
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2076 * components at the same time. |
|
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2077 */ |
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2078 s = (s | s << 16) & 0x03e07c1f; |
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2079 d = (d | d << 16) & 0x03e07c1f; |
|
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2080 d += (s - d) * alpha >> 5; |
|
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2081 d &= 0x03e07c1f; |
|
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2082 *dstp++ = d | d >> 16; |
| 1542 | 2083 },{ |
| 2084 movq_m2r((*srcp), mm2);/* 4 src pixels -> mm2 */ | |
| 2085 movq_m2r((*dstp), mm3);/* 4 dst pixels -> mm3 */ | |
| 2086 | |
| 2087 /* red -- process the bits in place */ | |
| 2088 psllq_i2r(5, mm4); /* turn MASKGREEN into MASKRED */ | |
| 2089 /* by reusing the GREEN mask we free up another mmx | |
| 2090 register to accumulate the result */ | |
| 2091 | |
| 2092 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 2093 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 2094 pand_r2r(mm4, mm5); /* src & MASKRED -> mm5 */ | |
| 2095 pand_r2r(mm4, mm6); /* dst & MASKRED -> mm6 */ | |
| 2096 | |
| 2097 /* blend */ | |
| 2098 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 2099 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 2100 /* 11 + 15 - 16 = 10 bits, uninteresting bits will be | |
| 2101 cleared by a MASK below */ | |
| 2102 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ | |
| 2103 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 2104 pand_r2r(mm4, mm6); /* mm6 & MASKRED -> mm6 */ | |
| 2105 | |
| 2106 psrlq_i2r(5, mm4); /* turn MASKRED back into MASKGREEN */ | |
| 2107 | |
| 2108 movq_r2r(mm6, mm1); /* save new reds in dsts */ | |
| 2109 | |
| 2110 /* green -- process the bits in place */ | |
| 2111 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 2112 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 2113 pand_r2r(mm4, mm5); /* src & MASKGREEN -> mm5 */ | |
| 2114 pand_r2r(mm4, mm6); /* dst & MASKGREEN -> mm6 */ | |
| 2115 | |
| 2116 /* blend */ | |
| 2117 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 2118 pmulhw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 2119 /* 11 + 10 - 16 = 5 bits, so all the lower uninteresting | |
| 2120 bits are gone and the sign bits present */ | |
| 2121 psllw_i2r(5, mm5); /* mm5 << 5 -> mm5 */ | |
| 2122 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 2123 | |
| 2124 por_r2r(mm6, mm1); /* save new greens in dsts */ | |
| 2125 | |
| 2126 /* blue */ | |
| 2127 movq_r2r(mm2, mm5); /* src -> mm5 */ | |
| 2128 movq_r2r(mm3, mm6); /* dst -> mm6 */ | |
| 2129 pand_r2r(mm7, mm5); /* src & MASKBLUE -> mm5[000b 000b 000b 000b] */ | |
| 2130 pand_r2r(mm7, mm6); /* dst & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 2131 | |
| 2132 /* blend */ | |
| 2133 psubw_r2r(mm6, mm5);/* src - dst -> mm5 */ | |
| 2134 pmullw_r2r(mm0, mm5); /* mm5 * alpha -> mm5 */ | |
| 2135 /* 11 + 5 = 16 bits, so the sign bits are lost and | |
| 2136 the interesting bits will need to be MASKed */ | |
| 2137 psrlw_i2r(11, mm5); /* mm5 >> 11 -> mm5 */ | |
| 2138 paddw_r2r(mm5, mm6); /* mm5 + mm6(dst) -> mm6 */ | |
| 2139 pand_r2r(mm7, mm6); /* mm6 & MASKBLUE -> mm6[000b 000b 000b 000b] */ | |
| 2140 | |
| 2141 por_r2r(mm6, mm1); /* save new blues in dsts */ | |
| 2142 | |
| 2143 movq_r2m(mm1, *dstp);/* mm1 -> 4 dst pixels */ | |
| 2144 | |
| 2145 srcp += 4; | |
| 2146 dstp += 4; | |
| 2147 }, width); | |
|
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2148 srcp += srcskip; |
|
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2149 dstp += dstskip; |
|
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|
2150 } |
|
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2151 emms(); |
|
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2152 } |
|
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2153 } |
| 1542 | 2154 /* End GCC_ASMBLIT */ |
| 2155 | |
| 2156 #elif MSVC_ASMBLIT | |
| 2157 /* fast RGB565->RGB565 blending with surface alpha */ | |
| 2158 static void Blit565to565SurfaceAlphaMMX(SDL_BlitInfo *info) | |
| 2159 { | |
| 2160 unsigned alpha = info->src->alpha; | |
| 2161 if(alpha == 128) { | |
| 2162 Blit16to16SurfaceAlpha128(info, 0xf7de); | |
| 2163 } else { | |
| 2164 int width = info->d_width; | |
| 2165 int height = info->d_height; | |
| 2166 Uint16 *srcp = (Uint16 *)info->s_pixels; | |
| 2167 int srcskip = info->s_skip >> 1; | |
| 2168 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2169 int dstskip = info->d_skip >> 1; | |
| 2170 Uint32 s, d; | |
| 2171 | |
| 2172 __m64 src1, dst1, src2, dst2, gmask, bmask, mm_res, mm_alpha; | |
| 2173 | |
| 2174 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ | |
| 2175 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ | |
| 2176 alpha >>= 3; /* downscale alpha to 5 bits */ | |
| 2177 | |
| 2178 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 2179 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 2180 /* position alpha to allow for mullo and mulhi on diff channels | |
| 2181 to reduce the number of operations */ | |
| 2182 mm_alpha = _mm_slli_si64(mm_alpha, 3); | |
| 2183 | |
| 2184 /* Setup the 565 color channel masks */ | |
| 2185 gmask = _mm_set_pi32(0x07E007E0, 0x07E007E0); /* MASKGREEN -> gmask */ | |
| 2186 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ | |
| 2187 | |
| 2188 while(height--) { | |
| 2189 DUFFS_LOOP_QUATRO2( | |
| 2190 { | |
| 2191 s = *srcp++; | |
| 2192 d = *dstp; | |
| 2193 /* | |
| 2194 * shift out the middle component (green) to | |
| 2195 * the high 16 bits, and process all three RGB | |
| 2196 * components at the same time. | |
| 2197 */ | |
| 2198 s = (s | s << 16) & 0x07e0f81f; | |
| 2199 d = (d | d << 16) & 0x07e0f81f; | |
| 2200 d += (s - d) * alpha >> 5; | |
| 2201 d &= 0x07e0f81f; | |
|
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1542
diff
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|
2202 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2203 },{ |
| 2204 s = *srcp++; | |
| 2205 d = *dstp; | |
| 2206 /* | |
| 2207 * shift out the middle component (green) to | |
| 2208 * the high 16 bits, and process all three RGB | |
| 2209 * components at the same time. | |
| 2210 */ | |
| 2211 s = (s | s << 16) & 0x07e0f81f; | |
| 2212 d = (d | d << 16) & 0x07e0f81f; | |
| 2213 d += (s - d) * alpha >> 5; | |
| 2214 d &= 0x07e0f81f; | |
|
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1542
diff
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|
2215 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2216 s = *srcp++; |
| 2217 d = *dstp; | |
| 2218 /* | |
| 2219 * shift out the middle component (green) to | |
| 2220 * the high 16 bits, and process all three RGB | |
| 2221 * components at the same time. | |
| 2222 */ | |
| 2223 s = (s | s << 16) & 0x07e0f81f; | |
| 2224 d = (d | d << 16) & 0x07e0f81f; | |
| 2225 d += (s - d) * alpha >> 5; | |
| 2226 d &= 0x07e0f81f; | |
|
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parents:
1542
diff
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|
2227 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2228 },{ |
| 2229 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */ | |
| 2230 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */ | |
| 2231 | |
| 2232 /* red */ | |
| 2233 src2 = src1; | |
| 2234 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 [000r 000r 000r 000r] */ | |
| 2235 | |
| 2236 dst2 = dst1; | |
| 2237 dst2 = _mm_srli_pi16(dst2, 11); /* dst2 >> 11 -> dst2 [000r 000r 000r 000r] */ | |
| 2238 | |
| 2239 /* blend */ | |
| 2240 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2241 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2242 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ | |
| 2243 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2244 dst2 = _mm_slli_pi16(dst2, 11); /* dst2 << 11 -> dst2 */ | |
| 2245 | |
| 2246 mm_res = dst2; /* RED -> mm_res */ | |
| 2247 | |
| 2248 /* green -- process the bits in place */ | |
| 2249 src2 = src1; | |
| 2250 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */ | |
| 2251 | |
| 2252 dst2 = dst1; | |
| 2253 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */ | |
| 2254 | |
| 2255 /* blend */ | |
| 2256 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2257 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2258 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ | |
| 2259 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2260 | |
| 2261 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */ | |
| 2262 | |
| 2263 /* blue */ | |
| 2264 src2 = src1; | |
| 2265 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */ | |
| 2266 | |
| 2267 dst2 = dst1; | |
| 2268 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */ | |
| 2269 | |
| 2270 /* blend */ | |
| 2271 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2272 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2273 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ | |
| 2274 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2275 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */ | |
| 2276 | |
| 2277 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */ | |
| 2278 | |
| 2279 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */ | |
| 2280 | |
| 2281 srcp += 4; | |
| 2282 dstp += 4; | |
| 2283 }, width); | |
| 2284 srcp += srcskip; | |
| 2285 dstp += dstskip; | |
| 2286 } | |
| 2287 _mm_empty(); | |
| 2288 } | |
| 2289 } | |
| 2290 | |
| 2291 /* fast RGB555->RGB555 blending with surface alpha */ | |
| 2292 static void Blit555to555SurfaceAlphaMMX(SDL_BlitInfo *info) | |
| 2293 { | |
| 2294 unsigned alpha = info->src->alpha; | |
| 2295 if(alpha == 128) { | |
| 2296 Blit16to16SurfaceAlpha128(info, 0xfbde); | |
| 2297 } else { | |
| 2298 int width = info->d_width; | |
| 2299 int height = info->d_height; | |
| 2300 Uint16 *srcp = (Uint16 *)info->s_pixels; | |
| 2301 int srcskip = info->s_skip >> 1; | |
| 2302 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2303 int dstskip = info->d_skip >> 1; | |
| 2304 Uint32 s, d; | |
| 2305 | |
| 2306 __m64 src1, dst1, src2, dst2, rmask, gmask, bmask, mm_res, mm_alpha; | |
| 2307 | |
| 2308 alpha &= ~(1+2+4); /* cut alpha to get the exact same behaviour */ | |
| 2309 mm_alpha = _mm_set_pi32(0, alpha); /* 0000000A -> mm_alpha */ | |
| 2310 alpha >>= 3; /* downscale alpha to 5 bits */ | |
| 2311 | |
| 2312 mm_alpha = _mm_unpacklo_pi16(mm_alpha, mm_alpha); /* 00000A0A -> mm_alpha */ | |
| 2313 mm_alpha = _mm_unpacklo_pi32(mm_alpha, mm_alpha); /* 0A0A0A0A -> mm_alpha */ | |
| 2314 /* position alpha to allow for mullo and mulhi on diff channels | |
| 2315 to reduce the number of operations */ | |
| 2316 mm_alpha = _mm_slli_si64(mm_alpha, 3); | |
| 2317 | |
| 2318 /* Setup the 555 color channel masks */ | |
| 2319 rmask = _mm_set_pi32(0x7C007C00, 0x7C007C00); /* MASKRED -> rmask */ | |
| 2320 gmask = _mm_set_pi32(0x03E003E0, 0x03E003E0); /* MASKGREEN -> gmask */ | |
| 2321 bmask = _mm_set_pi32(0x001F001F, 0x001F001F); /* MASKBLUE -> bmask */ | |
| 2322 | |
| 2323 while(height--) { | |
| 2324 DUFFS_LOOP_QUATRO2( | |
| 2325 { | |
| 2326 s = *srcp++; | |
| 2327 d = *dstp; | |
| 2328 /* | |
| 2329 * shift out the middle component (green) to | |
| 2330 * the high 16 bits, and process all three RGB | |
| 2331 * components at the same time. | |
| 2332 */ | |
| 2333 s = (s | s << 16) & 0x03e07c1f; | |
| 2334 d = (d | d << 16) & 0x03e07c1f; | |
| 2335 d += (s - d) * alpha >> 5; | |
| 2336 d &= 0x03e07c1f; | |
|
1546
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parents:
1542
diff
changeset
|
2337 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2338 },{ |
| 2339 s = *srcp++; | |
| 2340 d = *dstp; | |
| 2341 /* | |
| 2342 * shift out the middle component (green) to | |
| 2343 * the high 16 bits, and process all three RGB | |
| 2344 * components at the same time. | |
| 2345 */ | |
| 2346 s = (s | s << 16) & 0x03e07c1f; | |
| 2347 d = (d | d << 16) & 0x03e07c1f; | |
| 2348 d += (s - d) * alpha >> 5; | |
| 2349 d &= 0x03e07c1f; | |
|
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parents:
1542
diff
changeset
|
2350 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2351 s = *srcp++; |
| 2352 d = *dstp; | |
| 2353 /* | |
| 2354 * shift out the middle component (green) to | |
| 2355 * the high 16 bits, and process all three RGB | |
| 2356 * components at the same time. | |
| 2357 */ | |
| 2358 s = (s | s << 16) & 0x03e07c1f; | |
| 2359 d = (d | d << 16) & 0x03e07c1f; | |
| 2360 d += (s - d) * alpha >> 5; | |
| 2361 d &= 0x03e07c1f; | |
|
1546
4b835e36633d
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
1542
diff
changeset
|
2362 *dstp++ = (Uint16)(d | d >> 16); |
| 1542 | 2363 },{ |
| 2364 src1 = *(__m64*)srcp; /* 4 src pixels -> src1 */ | |
| 2365 dst1 = *(__m64*)dstp; /* 4 dst pixels -> dst1 */ | |
| 2366 | |
| 2367 /* red -- process the bits in place */ | |
| 2368 src2 = src1; | |
| 2369 src2 = _mm_and_si64(src2, rmask); /* src & MASKRED -> src2 */ | |
| 2370 | |
| 2371 dst2 = dst1; | |
| 2372 dst2 = _mm_and_si64(dst2, rmask); /* dst & MASKRED -> dst2 */ | |
| 2373 | |
| 2374 /* blend */ | |
| 2375 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2376 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2377 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ | |
| 2378 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2379 dst2 = _mm_and_si64(dst2, rmask); /* dst2 & MASKRED -> dst2 */ | |
| 2380 | |
| 2381 mm_res = dst2; /* RED -> mm_res */ | |
| 2382 | |
| 2383 /* green -- process the bits in place */ | |
| 2384 src2 = src1; | |
| 2385 src2 = _mm_and_si64(src2, gmask); /* src & MASKGREEN -> src2 */ | |
| 2386 | |
| 2387 dst2 = dst1; | |
| 2388 dst2 = _mm_and_si64(dst2, gmask); /* dst & MASKGREEN -> dst2 */ | |
| 2389 | |
| 2390 /* blend */ | |
| 2391 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2392 src2 = _mm_mulhi_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2393 src2 = _mm_slli_pi16(src2, 5); /* src2 << 5 -> src2 */ | |
| 2394 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2395 | |
| 2396 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN -> mm_res */ | |
| 2397 | |
| 2398 /* blue */ | |
| 2399 src2 = src1; /* src -> src2 */ | |
| 2400 src2 = _mm_and_si64(src2, bmask); /* src & MASKBLUE -> src2[000b 000b 000b 000b] */ | |
| 2401 | |
| 2402 dst2 = dst1; /* dst -> dst2 */ | |
| 2403 dst2 = _mm_and_si64(dst2, bmask); /* dst & MASKBLUE -> dst2[000b 000b 000b 000b] */ | |
| 2404 | |
| 2405 /* blend */ | |
| 2406 src2 = _mm_sub_pi16(src2, dst2);/* src - dst -> src2 */ | |
| 2407 src2 = _mm_mullo_pi16(src2, mm_alpha); /* src2 * alpha -> src2 */ | |
| 2408 src2 = _mm_srli_pi16(src2, 11); /* src2 >> 11 -> src2 */ | |
| 2409 dst2 = _mm_add_pi16(src2, dst2); /* src2 + dst2 -> dst2 */ | |
| 2410 dst2 = _mm_and_si64(dst2, bmask); /* dst2 & MASKBLUE -> dst2 */ | |
| 2411 | |
| 2412 mm_res = _mm_or_si64(mm_res, dst2); /* RED | GREEN | BLUE -> mm_res */ | |
| 2413 | |
| 2414 *(__m64*)dstp = mm_res; /* mm_res -> 4 dst pixels */ | |
| 2415 | |
| 2416 srcp += 4; | |
| 2417 dstp += 4; | |
| 2418 }, width); | |
| 2419 srcp += srcskip; | |
| 2420 dstp += dstskip; | |
| 2421 } | |
| 2422 _mm_empty(); | |
| 2423 } | |
| 2424 } | |
| 2425 #endif /* GCC_ASMBLIT, MSVC_ASMBLIT */ | |
|
689
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Sam Lantinga <slouken@libsdl.org>
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|
2426 |
|
1
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parents:
0
diff
changeset
|
2427 /* fast RGB565->RGB565 blending with surface alpha */ |
|
cf2af46e9e2a
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parents:
0
diff
changeset
|
2428 static void Blit565to565SurfaceAlpha(SDL_BlitInfo *info) |
|
cf2af46e9e2a
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parents:
0
diff
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|
2429 { |
|
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0
diff
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|
2430 unsigned alpha = info->src->alpha; |
|
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parents:
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diff
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|
2431 if(alpha == 128) { |
|
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0
diff
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|
2432 Blit16to16SurfaceAlpha128(info, 0xf7de); |
|
cf2af46e9e2a
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|
2433 } else { |
|
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0
diff
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|
2434 int width = info->d_width; |
|
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parents:
0
diff
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|
2435 int height = info->d_height; |
|
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parents:
0
diff
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|
2436 Uint16 *srcp = (Uint16 *)info->s_pixels; |
|
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parents:
0
diff
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|
2437 int srcskip = info->s_skip >> 1; |
|
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parents:
0
diff
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|
2438 Uint16 *dstp = (Uint16 *)info->d_pixels; |
|
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parents:
0
diff
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|
2439 int dstskip = info->d_skip >> 1; |
|
cf2af46e9e2a
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parents:
0
diff
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|
2440 alpha >>= 3; /* downscale alpha to 5 bits */ |
|
cf2af46e9e2a
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parents:
0
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|
2441 |
|
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parents:
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diff
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|
2442 while(height--) { |
|
cf2af46e9e2a
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parents:
0
diff
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|
2443 DUFFS_LOOP4({ |
|
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0
diff
changeset
|
2444 Uint32 s = *srcp++; |
|
cf2af46e9e2a
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parents:
0
diff
changeset
|
2445 Uint32 d = *dstp; |
|
cf2af46e9e2a
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parents:
0
diff
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|
2446 /* |
|
cf2af46e9e2a
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diff
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|
2447 * shift out the middle component (green) to |
|
cf2af46e9e2a
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parents:
0
diff
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|
2448 * the high 16 bits, and process all three RGB |
|
cf2af46e9e2a
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0
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|
2449 * components at the same time. |
|
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parents:
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|
2450 */ |
|
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0
diff
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|
2451 s = (s | s << 16) & 0x07e0f81f; |
|
cf2af46e9e2a
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parents:
0
diff
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|
2452 d = (d | d << 16) & 0x07e0f81f; |
|
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parents:
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diff
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|
2453 d += (s - d) * alpha >> 5; |
|
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0
diff
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|
2454 d &= 0x07e0f81f; |
|
1428
5f52867ba65c
Update for Visual C++ 6.0
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diff
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|
2455 *dstp++ = (Uint16)(d | d >> 16); |
|
1
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|
2456 }, width); |
|
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0
diff
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|
2457 srcp += srcskip; |
|
cf2af46e9e2a
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|
2458 dstp += dstskip; |
|
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|
2459 } |
| 0 | 2460 } |
| 2461 } | |
| 2462 | |
| 2463 /* fast RGB555->RGB555 blending with surface alpha */ | |
| 2464 static void Blit555to555SurfaceAlpha(SDL_BlitInfo *info) | |
| 2465 { | |
|
1
cf2af46e9e2a
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0
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|
2466 unsigned alpha = info->src->alpha; /* downscale alpha to 5 bits */ |
|
cf2af46e9e2a
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0
diff
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|
2467 if(alpha == 128) { |
|
cf2af46e9e2a
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0
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|
2468 Blit16to16SurfaceAlpha128(info, 0xfbde); |
|
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|
2469 } else { |
|
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0
diff
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|
2470 int width = info->d_width; |
|
cf2af46e9e2a
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0
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|
2471 int height = info->d_height; |
|
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|
2472 Uint16 *srcp = (Uint16 *)info->s_pixels; |
|
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|
2473 int srcskip = info->s_skip >> 1; |
|
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|
2474 Uint16 *dstp = (Uint16 *)info->d_pixels; |
|
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|
2475 int dstskip = info->d_skip >> 1; |
|
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|
2476 alpha >>= 3; /* downscale alpha to 5 bits */ |
| 0 | 2477 |
|
1
cf2af46e9e2a
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0
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|
2478 while(height--) { |
|
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0
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|
2479 DUFFS_LOOP4({ |
|
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|
2480 Uint32 s = *srcp++; |
|
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0
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|
2481 Uint32 d = *dstp; |
|
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0
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|
2482 /* |
|
cf2af46e9e2a
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|
2483 * shift out the middle component (green) to |
|
cf2af46e9e2a
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parents:
0
diff
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|
2484 * the high 16 bits, and process all three RGB |
|
cf2af46e9e2a
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0
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|
2485 * components at the same time. |
|
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|
2486 */ |
|
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|
2487 s = (s | s << 16) & 0x03e07c1f; |
|
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0
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|
2488 d = (d | d << 16) & 0x03e07c1f; |
|
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|
2489 d += (s - d) * alpha >> 5; |
|
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|
2490 d &= 0x03e07c1f; |
|
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|
2491 *dstp++ = (Uint16)(d | d >> 16); |
|
1
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|
2492 }, width); |
|
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|
2493 srcp += srcskip; |
|
cf2af46e9e2a
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|
2494 dstp += dstskip; |
|
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|
2495 } |
| 0 | 2496 } |
| 2497 } | |
| 2498 | |
| 2499 /* fast ARGB8888->RGB565 blending with pixel alpha */ | |
| 2500 static void BlitARGBto565PixelAlpha(SDL_BlitInfo *info) | |
| 2501 { | |
| 2502 int width = info->d_width; | |
| 2503 int height = info->d_height; | |
| 2504 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 2505 int srcskip = info->s_skip >> 2; | |
| 2506 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2507 int dstskip = info->d_skip >> 1; | |
| 2508 | |
| 2509 while(height--) { | |
| 2510 DUFFS_LOOP4({ | |
| 2511 Uint32 s = *srcp; | |
| 2512 unsigned alpha = s >> 27; /* downscale alpha to 5 bits */ | |
| 2513 /* FIXME: Here we special-case opaque alpha since the | |
| 2514 compositioning used (>>8 instead of /255) doesn't handle | |
| 2515 it correctly. Also special-case alpha=0 for speed? | |
| 2516 Benchmark this! */ | |
|
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|
2517 if(alpha) { |
|
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|
2518 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) { |
|
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1402
diff
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|
2519 *dstp = (Uint16)((s >> 8 & 0xf800) + (s >> 5 & 0x7e0) + (s >> 3 & 0x1f)); |
|
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|
2520 } else { |
| 0 | 2521 Uint32 d = *dstp; |
| 2522 /* | |
| 2523 * convert source and destination to G0RAB65565 | |
| 2524 * and blend all components at the same time | |
| 2525 */ | |
| 2526 s = ((s & 0xfc00) << 11) + (s >> 8 & 0xf800) | |
| 2527 + (s >> 3 & 0x1f); | |
| 2528 d = (d | d << 16) & 0x07e0f81f; | |
| 2529 d += (s - d) * alpha >> 5; | |
| 2530 d &= 0x07e0f81f; | |
|
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1402
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|
2531 *dstp = (Uint16)(d | d >> 16); |
|
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|
2532 } |
| 0 | 2533 } |
| 2534 srcp++; | |
| 2535 dstp++; | |
| 2536 }, width); | |
| 2537 srcp += srcskip; | |
| 2538 dstp += dstskip; | |
| 2539 } | |
| 2540 } | |
| 2541 | |
| 2542 /* fast ARGB8888->RGB555 blending with pixel alpha */ | |
| 2543 static void BlitARGBto555PixelAlpha(SDL_BlitInfo *info) | |
| 2544 { | |
| 2545 int width = info->d_width; | |
| 2546 int height = info->d_height; | |
| 2547 Uint32 *srcp = (Uint32 *)info->s_pixels; | |
| 2548 int srcskip = info->s_skip >> 2; | |
| 2549 Uint16 *dstp = (Uint16 *)info->d_pixels; | |
| 2550 int dstskip = info->d_skip >> 1; | |
| 2551 | |
| 2552 while(height--) { | |
| 2553 DUFFS_LOOP4({ | |
| 2554 unsigned alpha; | |
| 2555 Uint32 s = *srcp; | |
| 2556 alpha = s >> 27; /* downscale alpha to 5 bits */ | |
| 2557 /* FIXME: Here we special-case opaque alpha since the | |
| 2558 compositioning used (>>8 instead of /255) doesn't handle | |
| 2559 it correctly. Also special-case alpha=0 for speed? | |
| 2560 Benchmark this! */ | |
|
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297
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|
2561 if(alpha) { |
|
5bb080d35049
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297
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|
2562 if(alpha == (SDL_ALPHA_OPAQUE >> 3)) { |
|
1428
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1402
diff
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|
2563 *dstp = (Uint16)((s >> 9 & 0x7c00) + (s >> 6 & 0x3e0) + (s >> 3 & 0x1f)); |
|
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Date: Tue, 19 Aug 2003 17:57:00 +0200
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|
2564 } else { |
| 0 | 2565 Uint32 d = *dstp; |
| 2566 /* | |
| 2567 * convert source and destination to G0RAB65565 | |
| 2568 * and blend all components at the same time | |
| 2569 */ | |
| 2570 s = ((s & 0xf800) << 10) + (s >> 9 & 0x7c00) | |
| 2571 + (s >> 3 & 0x1f); | |
| 2572 d = (d | d << 16) & 0x03e07c1f; | |
| 2573 d += (s - d) * alpha >> 5; | |
| 2574 d &= 0x03e07c1f; | |
|
1428
5f52867ba65c
Update for Visual C++ 6.0
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
|
2575 *dstp = (Uint16)(d | d >> 16); |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents:
297
diff
changeset
|
2576 } |
| 0 | 2577 } |
| 2578 srcp++; | |
| 2579 dstp++; | |
| 2580 }, width); | |
| 2581 srcp += srcskip; | |
| 2582 dstp += dstskip; | |
| 2583 } | |
| 2584 } | |
| 2585 | |
| 2586 /* General (slow) N->N blending with per-surface alpha */ | |
| 2587 static void BlitNtoNSurfaceAlpha(SDL_BlitInfo *info) | |
| 2588 { | |
| 2589 int width = info->d_width; | |
| 2590 int height = info->d_height; | |
| 2591 Uint8 *src = info->s_pixels; | |
| 2592 int srcskip = info->s_skip; | |
| 2593 Uint8 *dst = info->d_pixels; | |
| 2594 int dstskip = info->d_skip; | |
| 2595 SDL_PixelFormat *srcfmt = info->src; | |
| 2596 SDL_PixelFormat *dstfmt = info->dst; | |
| 2597 int srcbpp = srcfmt->BytesPerPixel; | |
| 2598 int dstbpp = dstfmt->BytesPerPixel; | |
| 2599 unsigned sA = srcfmt->alpha; | |
| 2600 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; | |
| 2601 | |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents:
297
diff
changeset
|
2602 if(sA) { |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents:
297
diff
changeset
|
2603 while ( height-- ) { |
| 0 | 2604 DUFFS_LOOP4( |
| 2605 { | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2606 Uint32 Pixel; |
| 0 | 2607 unsigned sR; |
| 2608 unsigned sG; | |
| 2609 unsigned sB; | |
| 2610 unsigned dR; | |
| 2611 unsigned dG; | |
| 2612 unsigned dB; | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2613 DISEMBLE_RGB(src, srcbpp, 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
|
2614 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB); |
| 0 | 2615 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
| 2616 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); | |
| 2617 src += srcbpp; | |
| 2618 dst += dstbpp; | |
| 2619 }, | |
| 2620 width); | |
| 2621 src += srcskip; | |
| 2622 dst += dstskip; | |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2623 } |
| 0 | 2624 } |
| 2625 } | |
| 2626 | |
| 2627 /* General (slow) colorkeyed N->N blending with per-surface alpha */ | |
| 2628 static void BlitNtoNSurfaceAlphaKey(SDL_BlitInfo *info) | |
| 2629 { | |
| 2630 int width = info->d_width; | |
| 2631 int height = info->d_height; | |
| 2632 Uint8 *src = info->s_pixels; | |
| 2633 int srcskip = info->s_skip; | |
| 2634 Uint8 *dst = info->d_pixels; | |
| 2635 int dstskip = info->d_skip; | |
| 2636 SDL_PixelFormat *srcfmt = info->src; | |
| 2637 SDL_PixelFormat *dstfmt = info->dst; | |
| 2638 Uint32 ckey = srcfmt->colorkey; | |
| 2639 int srcbpp = srcfmt->BytesPerPixel; | |
| 2640 int dstbpp = dstfmt->BytesPerPixel; | |
| 2641 unsigned sA = srcfmt->alpha; | |
| 2642 unsigned dA = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0; | |
| 2643 | |
| 2644 while ( height-- ) { | |
| 2645 DUFFS_LOOP4( | |
| 2646 { | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2647 Uint32 Pixel; |
| 0 | 2648 unsigned sR; |
| 2649 unsigned sG; | |
| 2650 unsigned sB; | |
| 2651 unsigned dR; | |
| 2652 unsigned dG; | |
| 2653 unsigned dB; | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2654 RETRIEVE_RGB_PIXEL(src, srcbpp, Pixel); |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2655 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
|
2656 RGB_FROM_PIXEL(Pixel, srcfmt, sR, sG, sB); |
|
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2657 DISEMBLE_RGB(dst, dstbpp, dstfmt, Pixel, dR, dG, dB); |
| 0 | 2658 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
| 2659 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); | |
| 2660 } | |
| 2661 src += srcbpp; | |
| 2662 dst += dstbpp; | |
| 2663 }, | |
| 2664 width); | |
| 2665 src += srcskip; | |
| 2666 dst += dstskip; | |
| 2667 } | |
| 2668 } | |
| 2669 | |
| 2670 /* General (slow) N->N blending with pixel alpha */ | |
| 2671 static void BlitNtoNPixelAlpha(SDL_BlitInfo *info) | |
| 2672 { | |
| 2673 int width = info->d_width; | |
| 2674 int height = info->d_height; | |
| 2675 Uint8 *src = info->s_pixels; | |
| 2676 int srcskip = info->s_skip; | |
| 2677 Uint8 *dst = info->d_pixels; | |
| 2678 int dstskip = info->d_skip; | |
| 2679 SDL_PixelFormat *srcfmt = info->src; | |
| 2680 SDL_PixelFormat *dstfmt = info->dst; | |
| 2681 | |
| 2682 int srcbpp; | |
| 2683 int dstbpp; | |
| 2684 | |
| 2685 /* Set up some basic variables */ | |
| 2686 srcbpp = srcfmt->BytesPerPixel; | |
| 2687 dstbpp = dstfmt->BytesPerPixel; | |
| 2688 | |
| 2689 /* FIXME: for 8bpp source alpha, this doesn't get opaque values | |
| 2690 quite right. for <8bpp source alpha, it gets them very wrong | |
| 2691 (check all macros!) | |
| 2692 It is unclear whether there is a good general solution that doesn't | |
| 2693 need a branch (or a divide). */ | |
| 2694 while ( height-- ) { | |
| 2695 DUFFS_LOOP4( | |
| 2696 { | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2697 Uint32 Pixel; |
| 0 | 2698 unsigned sR; |
| 2699 unsigned sG; | |
| 2700 unsigned sB; | |
| 2701 unsigned dR; | |
| 2702 unsigned dG; | |
| 2703 unsigned dB; | |
| 2704 unsigned sA; | |
| 2705 unsigned dA; | |
|
1162
2651158f59b8
Enable altivec blitters on PowerPC Linux, and some fixes for recent
Ryan C. Gordon <icculus@icculus.org>
parents:
1047
diff
changeset
|
2706 DISEMBLE_RGBA(src, srcbpp, srcfmt, Pixel, sR, sG, sB, sA); |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
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parents:
297
diff
changeset
|
2707 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
|
2708 DISEMBLE_RGBA(dst, dstbpp, dstfmt, Pixel, dR, dG, dB, dA); |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2709 ALPHA_BLEND(sR, sG, sB, sA, dR, dG, dB); |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2710 ASSEMBLE_RGBA(dst, dstbpp, dstfmt, dR, dG, dB, dA); |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2711 } |
| 0 | 2712 src += srcbpp; |
| 2713 dst += dstbpp; | |
| 2714 }, | |
| 2715 width); | |
| 2716 src += srcskip; | |
| 2717 dst += dstskip; | |
| 2718 } | |
| 2719 } | |
| 2720 | |
| 2721 | |
| 2722 SDL_loblit SDL_CalculateAlphaBlit(SDL_Surface *surface, int blit_index) | |
| 2723 { | |
| 2724 SDL_PixelFormat *sf = surface->format; | |
| 2725 SDL_PixelFormat *df = surface->map->dst->format; | |
| 2726 | |
| 2727 if(sf->Amask == 0) { | |
| 2728 if((surface->flags & SDL_SRCCOLORKEY) == SDL_SRCCOLORKEY) { | |
| 2729 if(df->BytesPerPixel == 1) | |
| 2730 return BlitNto1SurfaceAlphaKey; | |
| 2731 else | |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
2732 #if SDL_ALTIVEC_BLITTERS |
| 1240 | 2733 if (sf->BytesPerPixel == 4 && df->BytesPerPixel == 4 && |
| 2734 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) | |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2735 return Blit32to32SurfaceAlphaKeyAltivec; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2736 else |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2737 #endif |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2738 return BlitNtoNSurfaceAlphaKey; |
| 0 | 2739 } else { |
| 2740 /* Per-surface alpha blits */ | |
| 2741 switch(df->BytesPerPixel) { | |
| 2742 case 1: | |
| 2743 return BlitNto1SurfaceAlpha; | |
| 2744 | |
| 2745 case 2: | |
| 2746 if(surface->map->identity) { | |
| 2747 if(df->Gmask == 0x7e0) | |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2748 { |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
2749 #if MMX_ASMBLIT |
|
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
720
diff
changeset
|
2750 if(SDL_HasMMX()) |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2751 return Blit565to565SurfaceAlphaMMX; |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2752 else |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2753 #endif |
| 0 | 2754 return Blit565to565SurfaceAlpha; |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2755 } |
| 0 | 2756 else if(df->Gmask == 0x3e0) |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2757 { |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
2758 #if MMX_ASMBLIT |
|
739
22dbf364c017
Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
Sam Lantinga <slouken@libsdl.org>
parents:
720
diff
changeset
|
2759 if(SDL_HasMMX()) |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2760 return Blit555to555SurfaceAlphaMMX; |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2761 else |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2762 #endif |
| 0 | 2763 return Blit555to555SurfaceAlpha; |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2764 } |
| 0 | 2765 } |
| 2766 return BlitNtoNSurfaceAlpha; | |
| 2767 | |
| 2768 case 4: | |
| 2769 if(sf->Rmask == df->Rmask | |
| 2770 && sf->Gmask == df->Gmask | |
| 2771 && sf->Bmask == df->Bmask | |
| 2772 && sf->BytesPerPixel == 4) | |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2773 { |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
2774 #if MMX_ASMBLIT |
| 1542 | 2775 if(sf->Rshift % 8 == 0 |
| 2776 && sf->Gshift % 8 == 0 | |
| 2777 && sf->Bshift % 8 == 0 | |
| 2778 && SDL_HasMMX()) | |
| 2779 return BlitRGBtoRGBSurfaceAlphaMMX; | |
| 2780 #endif | |
| 2781 if((sf->Rmask | sf->Gmask | sf->Bmask) == 0xffffff) | |
| 2782 { | |
|
1617
b255b4058d37
Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents:
1546
diff
changeset
|
2783 #if SDL_ALTIVEC_BLITTERS |
|
b255b4058d37
Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents:
1546
diff
changeset
|
2784 if(!(surface->map->dst->flags & SDL_HWSURFACE) |
|
b255b4058d37
Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents:
1546
diff
changeset
|
2785 && SDL_HasAltiVec()) |
| 1542 | 2786 return BlitRGBtoRGBSurfaceAlphaAltivec; |
| 2787 #endif | |
| 2788 return BlitRGBtoRGBSurfaceAlpha; | |
| 2789 } | |
| 2790 } | |
| 2791 #if SDL_ALTIVEC_BLITTERS | |
| 2792 if((sf->BytesPerPixel == 4) && | |
| 2793 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) | |
| 2794 return Blit32to32SurfaceAlphaAltivec; | |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2795 else |
|
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2796 #endif |
| 1542 | 2797 return BlitNtoNSurfaceAlpha; |
| 0 | 2798 |
| 2799 case 3: | |
| 2800 default: | |
| 2801 return BlitNtoNSurfaceAlpha; | |
| 2802 } | |
| 2803 } | |
| 2804 } else { | |
| 2805 /* Per-pixel alpha blits */ | |
| 2806 switch(df->BytesPerPixel) { | |
| 2807 case 1: | |
| 2808 return BlitNto1PixelAlpha; | |
| 2809 | |
| 2810 case 2: | |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
2811 #if SDL_ALTIVEC_BLITTERS |
| 1240 | 2812 if(sf->BytesPerPixel == 4 && !(surface->map->dst->flags & SDL_HWSURFACE) && |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2813 df->Gmask == 0x7e0 && |
| 1240 | 2814 df->Bmask == 0x1f && SDL_HasAltiVec()) |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2815 return Blit32to565PixelAlphaAltivec; |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2816 else |
|
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2817 #endif |
| 0 | 2818 if(sf->BytesPerPixel == 4 && sf->Amask == 0xff000000 |
| 2819 && sf->Gmask == 0xff00 | |
| 2820 && ((sf->Rmask == 0xff && df->Rmask == 0x1f) | |
| 2821 || (sf->Bmask == 0xff && df->Bmask == 0x1f))) { | |
| 2822 if(df->Gmask == 0x7e0) | |
| 2823 return BlitARGBto565PixelAlpha; | |
| 2824 else if(df->Gmask == 0x3e0) | |
| 2825 return BlitARGBto555PixelAlpha; | |
| 2826 } | |
| 2827 return BlitNtoNPixelAlpha; | |
| 2828 | |
| 2829 case 4: | |
| 1542 | 2830 if(sf->Rmask == df->Rmask |
| 0 | 2831 && sf->Gmask == df->Gmask |
| 2832 && sf->Bmask == df->Bmask | |
| 2833 && sf->BytesPerPixel == 4) | |
|
689
5bb080d35049
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297
diff
changeset
|
2834 { |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
2835 #if MMX_ASMBLIT |
| 1542 | 2836 if(sf->Rshift % 8 == 0 |
| 2837 && sf->Gshift % 8 == 0 | |
| 2838 && sf->Bshift % 8 == 0 | |
| 2839 && sf->Ashift % 8 == 0 | |
| 2840 && sf->Aloss == 0) | |
| 2841 { | |
| 2842 if(SDL_Has3DNow()) | |
| 2843 return BlitRGBtoRGBPixelAlphaMMX3DNOW; | |
| 2844 if(SDL_HasMMX()) | |
| 2845 return BlitRGBtoRGBPixelAlphaMMX; | |
| 2846 } | |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
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297
diff
changeset
|
2847 #endif |
| 1542 | 2848 if(sf->Amask == 0xff000000) |
| 2849 { | |
|
1617
b255b4058d37
Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents:
1546
diff
changeset
|
2850 #if SDL_ALTIVEC_BLITTERS |
|
b255b4058d37
Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents:
1546
diff
changeset
|
2851 if(!(surface->map->dst->flags & SDL_HWSURFACE) |
|
b255b4058d37
Patch from Alex to fix reverted code
Sam Lantinga <slouken@libsdl.org>
parents:
1546
diff
changeset
|
2852 && SDL_HasAltiVec()) |
| 1542 | 2853 return BlitRGBtoRGBPixelAlphaAltivec; |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2854 #endif |
| 1542 | 2855 return BlitRGBtoRGBPixelAlpha; |
| 2856 } | |
|
689
5bb080d35049
Date: Tue, 19 Aug 2003 17:57:00 +0200
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
2857 } |
|
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
2858 #if SDL_ALTIVEC_BLITTERS |
| 1542 | 2859 if (sf->Amask && sf->BytesPerPixel == 4 && |
| 2860 !(surface->map->dst->flags & SDL_HWSURFACE) && SDL_HasAltiVec()) | |
| 2861 return Blit32to32PixelAlphaAltivec; | |
| 2862 else | |
|
1047
ffaaf7ecf685
Altivec-optimized blitters!
Ryan C. Gordon <icculus@icculus.org>
parents:
880
diff
changeset
|
2863 #endif |
| 1542 | 2864 return BlitNtoNPixelAlpha; |
| 0 | 2865 |
| 2866 case 3: | |
| 2867 default: | |
| 2868 return BlitNtoNPixelAlpha; | |
| 2869 } | |
| 2870 } | |
| 2871 } | |
| 2872 |