FFmpeg: libswscale/x86/yuv2rgb_template.c Source File

00001 /*
00002  * yuv2rgb_mmx.c, software YUV to RGB converter with Intel MMX "technology"
00003  *
00004  * Copyright (C) 2000, Silicon Integrated System Corp
00005  *
00006  * Author: Olie Lho <ollie@sis.com.tw>
00007  *
00008  * 15,24 bpp and dithering from Michael Niedermayer (michaelni@gmx.at)
00009  * MMX/MMX2 Template stuff from Michael Niedermayer (needed for fast movntq support)
00010  * context / deglobalize stuff by Michael Niedermayer
00011  *
00012  * This file is part of mpeg2dec, a free MPEG-2 video decoder
00013  *
00014  * mpeg2dec is free software; you can redistribute it and/or modify
00015  * it under the terms of the GNU General Public License as published by
00016  * the Free Software Foundation; either version 2, or (at your option)
00017  * any later version.
00018  *
00019  * mpeg2dec is distributed in the hope that it will be useful,
00020  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00021  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00022  * GNU General Public License for more details.
00023  *
00024  * You should have received a copy of the GNU General Public License
00025  * along with mpeg2dec; if not, write to the Free Software
00026  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00027  */
00028 
00029 #undef MOVNTQ
00030 #undef EMMS
00031 #undef SFENCE
00032 
00033 #if HAVE_AMD3DNOW
00034 /* On K6 femms is faster than emms. On K7 femms is directly mapped to emms. */
00035 #define EMMS     "femms"
00036 #else
00037 #define EMMS     "emms"
00038 #endif
00039 
00040 #if HAVE_MMX2
00041 #define MOVNTQ "movntq"
00042 #define SFENCE "sfence"
00043 #else
00044 #define MOVNTQ "movq"
00045 #define SFENCE " # nop"
00046 #endif
00047 
00048 #define YUV2RGB \
00049     /* Do the multiply part of the conversion for even and odd pixels,
00050        register usage:
00051        mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,
00052        mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,
00053        mm6 -> Y even, mm7 -> Y odd */\
00054     /* convert the chroma part */\
00055     "punpcklbw %%mm4, %%mm0;" /* scatter 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \
00056     "punpcklbw %%mm4, %%mm1;" /* scatter 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \
00057 \
00058     "psllw $3, %%mm0;" /* Promote precision */ \
00059     "psllw $3, %%mm1;" /* Promote precision */ \
00060 \
00061     "psubsw "U_OFFSET"(%4), %%mm0;" /* Cb -= 128 */ \
00062     "psubsw "V_OFFSET"(%4), %%mm1;" /* Cr -= 128 */ \
00063 \
00064     "movq %%mm0, %%mm2;" /* Copy 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \
00065     "movq %%mm1, %%mm3;" /* Copy 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \
00066 \
00067     "pmulhw "UG_COEFF"(%4), %%mm2;" /* Mul Cb with green coeff -> Cb green */ \
00068     "pmulhw "VG_COEFF"(%4), %%mm3;" /* Mul Cr with green coeff -> Cr green */ \
00069 \
00070     "pmulhw "UB_COEFF"(%4), %%mm0;" /* Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 */\
00071     "pmulhw "VR_COEFF"(%4), %%mm1;" /* Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 */\
00072 \
00073     "paddsw %%mm3, %%mm2;" /* Cb green + Cr green -> Cgreen */\
00074 \
00075     /* convert the luma part */\
00076     "movq %%mm6, %%mm7;" /* Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\
00077     "pand "MANGLE(mmx_00ffw)", %%mm6;" /* get Y even 00 Y6 00 Y4 00 Y2 00 Y0 */\
00078 \
00079     "psrlw $8, %%mm7;" /* get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 */\
00080 \
00081     "psllw $3, %%mm6;" /* Promote precision */\
00082     "psllw $3, %%mm7;" /* Promote precision */\
00083 \
00084     "psubw "Y_OFFSET"(%4), %%mm6;" /* Y -= 16 */\
00085     "psubw "Y_OFFSET"(%4), %%mm7;" /* Y -= 16 */\
00086 \
00087     "pmulhw "Y_COEFF"(%4), %%mm6;" /* Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 */\
00088     "pmulhw "Y_COEFF"(%4), %%mm7;" /* Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 */\
00089 \
00090     /* Do the addition part of the conversion for even and odd pixels,
00091        register usage:
00092        mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,
00093        mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,
00094        mm6 -> Y even, mm7 -> Y odd */\
00095     "movq %%mm0, %%mm3;" /* Copy Cblue */\
00096     "movq %%mm1, %%mm4;" /* Copy Cred */\
00097     "movq %%mm2, %%mm5;" /* Copy Cgreen */\
00098 \
00099     "paddsw %%mm6, %%mm0;" /* Y even + Cblue 00 B6 00 B4 00 B2 00 B0 */\
00100     "paddsw %%mm7, %%mm3;" /* Y odd + Cblue 00 B7 00 B5 00 B3 00 B1 */\
00101 \
00102     "paddsw %%mm6, %%mm1;" /* Y even + Cred 00 R6 00 R4 00 R2 00 R0 */\
00103     "paddsw %%mm7, %%mm4;" /* Y odd + Cred 00 R7 00 R5 00 R3 00 R1 */\
00104 \
00105     "paddsw %%mm6, %%mm2;" /* Y even + Cgreen 00 G6 00 G4 00 G2 00 G0 */\
00106     "paddsw %%mm7, %%mm5;" /* Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1 */\
00107 \
00108     /* Limit RGB even to 0..255 */\
00109     "packuswb %%mm0, %%mm0;" /* B6 B4 B2 B0  B6 B4 B2 B0 */\
00110     "packuswb %%mm1, %%mm1;" /* R6 R4 R2 R0  R6 R4 R2 R0 */\
00111     "packuswb %%mm2, %%mm2;" /* G6 G4 G2 G0  G6 G4 G2 G0 */\
00112 \
00113     /* Limit RGB odd to 0..255 */\
00114     "packuswb %%mm3, %%mm3;" /* B7 B5 B3 B1  B7 B5 B3 B1 */\
00115     "packuswb %%mm4, %%mm4;" /* R7 R5 R3 R1  R7 R5 R3 R1 */\
00116     "packuswb %%mm5, %%mm5;" /* G7 G5 G3 G1  G7 G5 G3 G1 */\
00117 \
00118     /* Interleave RGB even and odd */\
00119     "punpcklbw %%mm3, %%mm0;" /* B7 B6 B5 B4 B3 B2 B1 B0 */\
00120     "punpcklbw %%mm4, %%mm1;" /* R7 R6 R5 R4 R3 R2 R1 R0 */\
00121     "punpcklbw %%mm5, %%mm2;" /* G7 G6 G5 G4 G3 G2 G1 G0 */\
00122 
00123 
00124 #define YUV422_UNSHIFT                   \
00125     if(c->srcFormat == PIX_FMT_YUV422P) {\
00126         srcStride[1] *= 2;               \
00127         srcStride[2] *= 2;               \
00128     }                                    \
00129 
00130 #define YUV2RGB_LOOP(depth)                                   \
00131     h_size= (c->dstW+7)&~7;                                   \
00132     if(h_size*depth > FFABS(dstStride[0])) h_size-=8;         \
00133 \
00134     __asm__ volatile ("pxor %mm4, %mm4;" /* zero mm4 */ );    \
00135     for (y= 0; y<srcSliceH; y++ ) {                           \
00136         uint8_t *image = dst[0] + (y+srcSliceY)*dstStride[0]; \
00137         const uint8_t *py = src[0] + y*srcStride[0];          \
00138         const uint8_t *pu = src[1] + (y>>1)*srcStride[1];     \
00139         const uint8_t *pv = src[2] + (y>>1)*srcStride[2];     \
00140         x86_reg index= -h_size/2;                                \
00141 
00142 #define YUV2RGB_INIT                                                       \
00143         /* This MMX assembly code deals with a SINGLE scan line at a time, \
00144          * it converts 8 pixels in each iteration. */                      \
00145         __asm__ volatile (                                                 \
00146         /* load data for start of next scan line */                        \
00147         "movd    (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ \
00148         "movd    (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ \
00149         "movq (%5, %0, 2), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ \
00150         /*                                                                 \
00151         ".balign 16     \n\t"                                              \
00152         */                                                                 \
00153         "1:             \n\t"                                              \
00154         /* No speed difference on my p3@500 with prefetch,                 \
00155          * if it is faster for anyone with -benchmark then tell me.        \
00156         PREFETCH" 64(%0) \n\t"                                             \
00157         PREFETCH" 64(%1) \n\t"                                             \
00158         PREFETCH" 64(%2) \n\t"                                             \
00159         */                                                                 \
00160 
00161 #define YUV2RGB_ENDLOOP(depth) \
00162         "add $"AV_STRINGIFY(depth*8)", %1    \n\t" \
00163         "add                       $4, %0    \n\t" \
00164         " js                       1b        \n\t" \
00165 
00166 #define YUV2RGB_OPERANDS \
00167         : "+r" (index), "+r" (image) \
00168         : "r" (pu - index), "r" (pv - index), "r"(&c->redDither), "r" (py - 2*index) \
00169         ); \
00170     } \
00171     __asm__ volatile (SFENCE"\n\t"EMMS); \
00172     return srcSliceH; \
00173 
00174 #define YUV2RGB_OPERANDS_ALPHA \
00175         : "+r" (index), "+r" (image) \
00176         : "r" (pu - index), "r" (pv - index), "r"(&c->redDither), "r" (py - 2*index), "r" (pa - 2*index) \
00177         ); \
00178     } \
00179     __asm__ volatile (SFENCE"\n\t"EMMS); \
00180     return srcSliceH; \
00181 
00182 static inline int RENAME(yuv420_rgb16)(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
00183                                        int srcSliceH, uint8_t* dst[], int dstStride[])
00184 {
00185     int y, h_size;
00186 
00187     YUV422_UNSHIFT
00188     YUV2RGB_LOOP(2)
00189 
00190         c->blueDither= ff_dither8[y&1];
00191         c->greenDither= ff_dither4[y&1];
00192         c->redDither= ff_dither8[(y+1)&1];
00193 
00194         YUV2RGB_INIT
00195         YUV2RGB
00196 
00197 #ifdef DITHER1XBPP
00198         "paddusb "BLUE_DITHER"(%4), %%mm0;"
00199         "paddusb "GREEN_DITHER"(%4), %%mm2;"
00200         "paddusb "RED_DITHER"(%4), %%mm1;"
00201 #endif
00202         /* mask unneeded bits off */
00203         "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
00204         "pand "MANGLE(mmx_grnmask)", %%mm2;" /* g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0 */
00205         "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
00206 
00207         "psrlw   $3, %%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
00208         "pxor %%mm4, %%mm4;" /* zero mm4 */
00209 
00210         "movq %%mm0, %%mm5;" /* Copy B7-B0 */
00211         "movq %%mm2, %%mm7;" /* Copy G7-G0 */
00212 
00213         /* convert RGB24 plane to RGB16 pack for pixel 0-3 */
00214         "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
00215         "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
00216 
00217         "psllw  $3, %%mm2;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
00218         "por %%mm2, %%mm0;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
00219 
00220         "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
00221         MOVNTQ "      %%mm0, (%1);" /* store pixel 0-3 */
00222 
00223         /* convert RGB24 plane to RGB16 pack for pixel 0-3 */
00224         "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
00225         "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
00226 
00227         "psllw        $3, %%mm7;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
00228         "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
00229 
00230         "por       %%mm7, %%mm5;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
00231         "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
00232 
00233         MOVNTQ "   %%mm5, 8 (%1);" /* store pixel 4-7 */
00234 
00235     YUV2RGB_ENDLOOP(2)
00236     YUV2RGB_OPERANDS
00237 }
00238 
00239 static inline int RENAME(yuv420_rgb15)(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
00240                                        int srcSliceH, uint8_t* dst[], int dstStride[])
00241 {
00242     int y, h_size;
00243 
00244     YUV422_UNSHIFT
00245     YUV2RGB_LOOP(2)
00246 
00247         c->blueDither= ff_dither8[y&1];
00248         c->greenDither= ff_dither8[y&1];
00249         c->redDither= ff_dither8[(y+1)&1];
00250 
00251         YUV2RGB_INIT
00252         YUV2RGB
00253 
00254 #ifdef DITHER1XBPP
00255         "paddusb "BLUE_DITHER"(%4), %%mm0  \n\t"
00256         "paddusb "GREEN_DITHER"(%4), %%mm2  \n\t"
00257         "paddusb "RED_DITHER"(%4), %%mm1  \n\t"
00258 #endif
00259 
00260         /* mask unneeded bits off */
00261         "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
00262         "pand "MANGLE(mmx_redmask)", %%mm2;" /* g7g6g5g4 g3_0_0_0 g7g6g5g4 g3_0_0_0 */
00263         "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
00264 
00265         "psrlw   $3, %%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
00266         "psrlw   $1, %%mm1;" /* 0_r7r6r5  r4r3_0_0 0_r7r6r5 r4r3_0_0 */
00267         "pxor %%mm4, %%mm4;" /* zero mm4 */
00268 
00269         "movq %%mm0, %%mm5;" /* Copy B7-B0 */
00270         "movq %%mm2, %%mm7;" /* Copy G7-G0 */
00271 
00272         /* convert RGB24 plane to RGB16 pack for pixel 0-3 */
00273         "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3_0_0_0 */
00274         "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
00275 
00276         "psllw  $2, %%mm2;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
00277         "por %%mm2, %%mm0;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
00278 
00279         "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
00280         MOVNTQ "      %%mm0, (%1);"  /* store pixel 0-3 */
00281 
00282         /* convert RGB24 plane to RGB16 pack for pixel 0-3 */
00283         "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 0_g7g6g5 g4g3_0_0 */
00284         "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
00285 
00286         "psllw        $2, %%mm7;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
00287         "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
00288 
00289         "por       %%mm7, %%mm5;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
00290         "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
00291 
00292         MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */
00293 
00294     YUV2RGB_ENDLOOP(2)
00295     YUV2RGB_OPERANDS
00296 }
00297 
00298 #undef RGB_PLANAR2PACKED24
00299 #if HAVE_MMX2
00300 #define RGB_PLANAR2PACKED24(red, blue)\
00301         "movq "MANGLE(ff_M24A)", %%mm4     \n\t"\
00302         "movq "MANGLE(ff_M24C)", %%mm7     \n\t"\
00303         "pshufw $0x50, %%mm"blue", %%mm5   \n\t" /* B3 B2 B3 B2  B1 B0 B1 B0 */\
00304         "pshufw $0x50, %%mm2, %%mm3     \n\t" /* G3 G2 G3 G2  G1 G0 G1 G0 */\
00305         "pshufw $0x00, %%mm"red", %%mm6 \n\t" /* R1 R0 R1 R0  R1 R0 R1 R0 */\
00306 \
00307         "pand   %%mm4, %%mm5            \n\t" /*    B2        B1       B0 */\
00308         "pand   %%mm4, %%mm3            \n\t" /*    G2        G1       G0 */\
00309         "pand   %%mm7, %%mm6            \n\t" /*       R1        R0       */\
00310 \
00311         "psllq     $8, %%mm3            \n\t" /* G2        G1       G0    */\
00312         "por    %%mm5, %%mm6            \n\t"\
00313         "por    %%mm3, %%mm6            \n\t"\
00314         MOVNTQ" %%mm6, (%1)             \n\t"\
00315 \
00316         "psrlq     $8, %%mm2            \n\t" /* 00 G7 G6 G5  G4 G3 G2 G1 */\
00317         "pshufw $0xA5, %%mm"blue", %%mm5\n\t" /* B5 B4 B5 B4  B3 B2 B3 B2 */\
00318         "pshufw $0x55, %%mm2, %%mm3     \n\t" /* G4 G3 G4 G3  G4 G3 G4 G3 */\
00319         "pshufw $0xA5, %%mm"red", %%mm6 \n\t" /* R5 R4 R5 R4  R3 R2 R3 R2 */\
00320 \
00321         "pand "MANGLE(ff_M24B)", %%mm5  \n\t" /* B5       B4        B3    */\
00322         "pand          %%mm7, %%mm3     \n\t" /*       G4        G3       */\
00323         "pand          %%mm4, %%mm6     \n\t" /*    R4        R3       R2 */\
00324 \
00325         "por    %%mm5, %%mm3            \n\t" /* B5    G4 B4     G3 B3    */\
00326         "por    %%mm3, %%mm6            \n\t"\
00327         MOVNTQ" %%mm6, 8(%1)            \n\t"\
00328 \
00329         "pshufw $0xFF, %%mm"blue", %%mm5\n\t" /* B7 B6 B7 B6  B7 B6 B6 B7 */\
00330         "pshufw $0xFA, %%mm2, %%mm3     \n\t" /* 00 G7 00 G7  G6 G5 G6 G5 */\
00331         "pshufw $0xFA, %%mm"red", %%mm6 \n\t" /* R7 R6 R7 R6  R5 R4 R5 R4 */\
00332         "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */\
00333 \
00334         "pand          %%mm7, %%mm5     \n\t" /*       B7        B6       */\
00335         "pand          %%mm4, %%mm3     \n\t" /*    G7        G6       G5 */\
00336         "pand "MANGLE(ff_M24B)", %%mm6  \n\t" /* R7       R6        R5    */\
00337         "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */\
00338 \
00339         "por          %%mm5, %%mm3      \n\t"\
00340         "por          %%mm3, %%mm6      \n\t"\
00341         MOVNTQ"       %%mm6, 16(%1)     \n\t"\
00342         "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\
00343         "pxor         %%mm4, %%mm4      \n\t"
00344 #else
00345 #define RGB_PLANAR2PACKED24(red, blue)\
00346         "pxor      %%mm4, %%mm4     \n\t"\
00347         "movq      %%mm"blue", %%mm5\n\t" /* B */\
00348         "movq      %%mm"red", %%mm6 \n\t" /* R */\
00349         "punpcklbw %%mm2, %%mm"blue"\n\t" /* GBGBGBGB 0 */\
00350         "punpcklbw %%mm4, %%mm"red" \n\t" /* 0R0R0R0R 0 */\
00351         "punpckhbw %%mm2, %%mm5     \n\t" /* GBGBGBGB 2 */\
00352         "punpckhbw %%mm4, %%mm6     \n\t" /* 0R0R0R0R 2 */\
00353         "movq      %%mm"blue", %%mm7\n\t" /* GBGBGBGB 0 */\
00354         "movq      %%mm5, %%mm3     \n\t" /* GBGBGBGB 2 */\
00355         "punpcklwd %%mm"red", %%mm7 \n\t" /* 0RGB0RGB 0 */\
00356         "punpckhwd %%mm"red", %%mm"blue"\n\t" /* 0RGB0RGB 1 */\
00357         "punpcklwd %%mm6, %%mm5     \n\t" /* 0RGB0RGB 2 */\
00358         "punpckhwd %%mm6, %%mm3     \n\t" /* 0RGB0RGB 3 */\
00359 \
00360         "movq      %%mm7, %%mm2     \n\t" /* 0RGB0RGB 0 */\
00361         "movq      %%mm"blue", %%mm6\n\t" /* 0RGB0RGB 1 */\
00362         "movq      %%mm5, %%mm"red" \n\t" /* 0RGB0RGB 2 */\
00363         "movq      %%mm3, %%mm4     \n\t" /* 0RGB0RGB 3 */\
00364 \
00365         "psllq       $40, %%mm7     \n\t" /* RGB00000 0 */\
00366         "psllq       $40, %%mm"blue"\n\t" /* RGB00000 1 */\
00367         "psllq       $40, %%mm5     \n\t" /* RGB00000 2 */\
00368         "psllq       $40, %%mm3     \n\t" /* RGB00000 3 */\
00369 \
00370         "punpckhdq %%mm2, %%mm7     \n\t" /* 0RGBRGB0 0 */\
00371         "punpckhdq %%mm6, %%mm"blue"\n\t" /* 0RGBRGB0 1 */\
00372         "punpckhdq %%mm"red", %%mm5 \n\t" /* 0RGBRGB0 2 */\
00373         "punpckhdq %%mm4, %%mm3     \n\t" /* 0RGBRGB0 3 */\
00374 \
00375         "psrlq        $8, %%mm7     \n\t" /* 00RGBRGB 0 */\
00376         "movq      %%mm"blue", %%mm6\n\t" /* 0RGBRGB0 1 */\
00377         "psllq       $40, %%mm"blue"\n\t" /* GB000000 1 */\
00378         "por       %%mm"blue", %%mm7\n\t" /* GBRGBRGB 0 */\
00379         MOVNTQ"    %%mm7, (%1)      \n\t"\
00380 \
00381         "psrlq       $24, %%mm6     \n\t" /* 0000RGBR 1 */\
00382         "movq      %%mm5, %%mm"red" \n\t" /* 0RGBRGB0 2 */\
00383         "psllq       $24, %%mm5     \n\t" /* BRGB0000 2 */\
00384         "por       %%mm5, %%mm6     \n\t" /* BRGBRGBR 1 */\
00385         MOVNTQ"    %%mm6, 8(%1)     \n\t"\
00386 \
00387         "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\
00388 \
00389         "psrlq       $40, %%mm"red" \n\t" /* 000000RG 2 */\
00390         "psllq        $8, %%mm3     \n\t" /* RGBRGB00 3 */\
00391         "por       %%mm3, %%mm"red" \n\t" /* RGBRGBRG 2 */\
00392         MOVNTQ"    %%mm"red", 16(%1)\n\t"\
00393 \
00394         "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */\
00395         "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */\
00396         "pxor      %%mm4, %%mm4     \n\t"
00397 #endif
00398 
00399 static inline int RENAME(yuv420_rgb24)(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
00400                                        int srcSliceH, uint8_t* dst[], int dstStride[])
00401 {
00402     int y, h_size;
00403 
00404     YUV422_UNSHIFT
00405     YUV2RGB_LOOP(3)
00406 
00407         YUV2RGB_INIT
00408         YUV2RGB
00409         /* mm0=B, %%mm2=G, %%mm1=R */
00410         RGB_PLANAR2PACKED24("0", "1")
00411 
00412     YUV2RGB_ENDLOOP(3)
00413     YUV2RGB_OPERANDS
00414 }
00415 
00416 static inline int RENAME(yuv420_bgr24)(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
00417                                        int srcSliceH, uint8_t* dst[], int dstStride[])
00418 {
00419     int y, h_size;
00420 
00421     YUV422_UNSHIFT
00422     YUV2RGB_LOOP(3)
00423 
00424         YUV2RGB_INIT
00425         YUV2RGB
00426         /* mm0=B, %%mm2=G, %%mm1=R */
00427         RGB_PLANAR2PACKED24("1", "0")
00428 
00429     YUV2RGB_ENDLOOP(3)
00430     YUV2RGB_OPERANDS
00431 }
00432 
00433 /*
00434 
00435 RGB_PLANAR2PACKED32(red,green,blue,alpha)
00436 
00437 convert RGB plane to RGB packed format
00438 
00439 macro parameters specify the output color channel order:
00440 
00441 RGB_PLANAR2PACKED32(REG_RED,  REG_GREEN, REG_BLUE, REG_ALPHA) for RGBA output,
00442 RGB_PLANAR2PACKED32(REG_BLUE, REG_GREEN, REG_RED,  REG_ALPHA) for BGRA output,
00443 RGB_PLANAR2PACKED32(REG_ALPHA,REG_BLUE,  REG_GREEN,REG_RED)   for ABGR output,
00444 
00445 etc.
00446 */
00447 
00448 #define REG_BLUE  "0"
00449 #define REG_RED   "1"
00450 #define REG_GREEN "2"
00451 #define REG_ALPHA "3"
00452 
00453 #define RGB_PLANAR2PACKED32(red,green,blue,alpha)                       \
00454     /* convert RGB plane to RGB packed format,                          \
00455        mm0 ->  B, mm1 -> R, mm2 -> G, mm3 -> A,                         \
00456        mm4 -> GB, mm5 -> AR pixel 4-7,                                  \
00457        mm6 -> GB, mm7 -> AR pixel 0-3 */                                \
00458     "movq      %%mm" blue ", %%mm6;"   /* B7 B6 B5 B4 B3 B2 B1 B0 */    \
00459     "movq      %%mm" red  ", %%mm7;"   /* R7 R6 R5 R4 R3 R2 R1 R0 */    \
00460 \
00461     "movq      %%mm" blue ", %%mm4;"   /* B7 B6 B5 B4 B3 B2 B1 B0 */    \
00462     "movq      %%mm" red  ", %%mm5;"   /* R7 R6 R5 R4 R3 R2 R1 R0 */    \
00463 \
00464     "punpcklbw %%mm" green ", %%mm6;"  /* G3 B3 G2 B2 G1 B1 G0 B0 */    \
00465     "punpcklbw %%mm" alpha ", %%mm7;"  /* A3 R3 A2 R2 A1 R1 A0 R0 */    \
00466 \
00467     "punpcklwd %%mm7, %%mm6;"          /* A1 R1 B1 G1 A0 R0 B0 G0 */    \
00468     MOVNTQ "   %%mm6, (%1);"           /* Store ARGB1 ARGB0 */          \
00469 \
00470     "movq      %%mm" blue ", %%mm6;"   /* B7 B6 B5 B4 B3 B2 B1 B0 */    \
00471     "punpcklbw %%mm" green ", %%mm6;"  /* G3 B3 G2 B2 G1 B1 G0 B0 */    \
00472 \
00473     "punpckhwd %%mm7, %%mm6;"          /* A3 R3 G3 B3 A2 R2 B3 G2 */    \
00474     MOVNTQ "   %%mm6, 8 (%1);"         /* Store ARGB3 ARGB2 */          \
00475 \
00476     "punpckhbw %%mm" green ", %%mm4;"  /* G7 B7 G6 B6 G5 B5 G4 B4 */    \
00477     "punpckhbw %%mm" alpha ", %%mm5;"  /* A7 R7 A6 R6 A5 R5 A4 R4 */    \
00478 \
00479     "punpcklwd %%mm5, %%mm4;"          /* A5 R5 B5 G5 A4 R4 B4 G4 */    \
00480     MOVNTQ "   %%mm4, 16 (%1);"        /* Store ARGB5 ARGB4 */          \
00481 \
00482     "movq      %%mm" blue ", %%mm4;"   /* B7 B6 B5 B4 B3 B2 B1 B0 */    \
00483     "punpckhbw %%mm" green ", %%mm4;"  /* G7 B7 G6 B6 G5 B5 G4 B4 */    \
00484 \
00485     "punpckhwd %%mm5, %%mm4;"   /* A7 R7 G7 B7 A6 R6 B6 G6 */           \
00486     MOVNTQ "   %%mm4, 24 (%1);" /* Store ARGB7 ARGB6 */                 \
00487 \
00488     "movd 4 (%2, %0), %%mm0;"   /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ \
00489     "movd 4 (%3, %0), %%mm1;"   /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ \
00490 \
00491     "pxor         %%mm4, %%mm4;" /* zero mm4 */                         \
00492     "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ \
00493 
00494 static inline int RENAME(yuv420_rgb32)(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
00495                                        int srcSliceH, uint8_t* dst[], int dstStride[])
00496 {
00497     int y, h_size;
00498 
00499     YUV422_UNSHIFT
00500     YUV2RGB_LOOP(4)
00501 
00502         YUV2RGB_INIT
00503         YUV2RGB
00504         "pcmpeqd   %%mm3, %%mm3;"   /* fill mm3 */
00505         RGB_PLANAR2PACKED32(REG_RED,REG_GREEN,REG_BLUE,REG_ALPHA)
00506 
00507     YUV2RGB_ENDLOOP(4)
00508     YUV2RGB_OPERANDS
00509 }
00510 
00511 static inline int RENAME(yuva420_rgb32)(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
00512                                         int srcSliceH, uint8_t* dst[], int dstStride[])
00513 {
00514 #if HAVE_7REGS
00515     int y, h_size;
00516 
00517     YUV2RGB_LOOP(4)
00518 
00519         const uint8_t *pa = src[3] + y*srcStride[3];
00520         YUV2RGB_INIT
00521         YUV2RGB
00522         "movq     (%6, %0, 2), %%mm3;"            /* Load 8 A A7 A6 A5 A4 A3 A2 A1 A0 */
00523         RGB_PLANAR2PACKED32(REG_RED,REG_GREEN,REG_BLUE,REG_ALPHA)
00524 
00525     YUV2RGB_ENDLOOP(4)
00526     YUV2RGB_OPERANDS_ALPHA
00527 #endif
00528 }
00529 
00530 static inline int RENAME(yuv420_bgr32)(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
00531                                        int srcSliceH, uint8_t* dst[], int dstStride[])
00532 {
00533     int y, h_size;
00534 
00535     YUV422_UNSHIFT
00536     YUV2RGB_LOOP(4)
00537 
00538         YUV2RGB_INIT
00539         YUV2RGB
00540         "pcmpeqd   %%mm3, %%mm3;"   /* fill mm3 */
00541         RGB_PLANAR2PACKED32(REG_BLUE,REG_GREEN,REG_RED,REG_ALPHA)
00542 
00543     YUV2RGB_ENDLOOP(4)
00544     YUV2RGB_OPERANDS
00545 }
00546 
00547 static inline int RENAME(yuva420_bgr32)(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
00548                                         int srcSliceH, uint8_t* dst[], int dstStride[])
00549 {
00550 #if HAVE_7REGS
00551     int y, h_size;
00552 
00553     YUV2RGB_LOOP(4)
00554 
00555         const uint8_t *pa = src[3] + y*srcStride[3];
00556         YUV2RGB_INIT
00557         YUV2RGB
00558         "movq     (%6, %0, 2), %%mm3;"            /* Load 8 A A7 A6 A5 A4 A3 A2 A1 A0 */
00559         RGB_PLANAR2PACKED32(REG_BLUE,REG_GREEN,REG_RED,REG_ALPHA)
00560 
00561     YUV2RGB_ENDLOOP(4)
00562     YUV2RGB_OPERANDS_ALPHA
00563 #endif
00564 }