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ffmpeg / libswscale / yuv2rgb_template.c @ 2c86a578

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/*
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 * yuv2rgb_mmx.c, Software YUV to RGB coverter with Intel MMX "technology"
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 *
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 * Copyright (C) 2000, Silicon Integrated System Corp.
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 * All Rights Reserved.
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 *
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 * Author: Olie Lho <ollie@sis.com.tw>
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 *
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 * This file is part of mpeg2dec, a free MPEG-2 video decoder
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 *
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 * mpeg2dec is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2, or (at your option)
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 * any later version.
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 *
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 * mpeg2dec is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with mpeg2dec; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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 *
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 * 15,24 bpp and dithering from Michael Niedermayer (michaelni@gmx.at)
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 * MMX/MMX2 Template stuff from Michael Niedermayer (needed for fast movntq support)
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 * context / deglobalize stuff by Michael Niedermayer
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 */
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#undef MOVNTQ
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#undef EMMS
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#undef SFENCE
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#ifdef HAVE_3DNOW
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/* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */
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#define EMMS     "femms"
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#else
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#define EMMS     "emms"
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#endif
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#ifdef HAVE_MMX2
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#define MOVNTQ "movntq"
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#define SFENCE "sfence"
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#else
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#define MOVNTQ "movq"
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#define SFENCE "/nop"
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#endif
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#define YUV2RGB \
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                     /* Do the multiply part of the conversion for even and odd pixels,
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                        register usage:
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                        mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,
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                        mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,
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                        mm6 -> Y even, mm7 -> Y odd */\
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                     /* convert the chroma part */\
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                     "punpcklbw %%mm4, %%mm0;" /* scatter 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \
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                     "punpcklbw %%mm4, %%mm1;" /* scatter 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \
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\
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                     "psllw $3, %%mm0;" /* Promote precision */ \
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                     "psllw $3, %%mm1;" /* Promote precision */ \
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\
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                     "psubsw "U_OFFSET"(%4), %%mm0;" /* Cb -= 128 */ \
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                     "psubsw "V_OFFSET"(%4), %%mm1;" /* Cr -= 128 */ \
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\
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                     "movq %%mm0, %%mm2;" /* Copy 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \
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                     "movq %%mm1, %%mm3;" /* Copy 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \
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\
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                     "pmulhw "UG_COEFF"(%4), %%mm2;" /* Mul Cb with green coeff -> Cb green */ \
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                     "pmulhw "VG_COEFF"(%4), %%mm3;" /* Mul Cr with green coeff -> Cr green */ \
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\
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                     "pmulhw "UB_COEFF"(%4), %%mm0;" /* Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 */\
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                     "pmulhw "VR_COEFF"(%4), %%mm1;" /* Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 */\
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\
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                     "paddsw %%mm3, %%mm2;" /* Cb green + Cr green -> Cgreen */\
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\
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                     /* convert the luma part */\
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                     "movq %%mm6, %%mm7;" /* Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\
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                     "pand "MANGLE(mmx_00ffw)", %%mm6;" /* get Y even 00 Y6 00 Y4 00 Y2 00 Y0 */\
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\
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                     "psrlw $8, %%mm7;" /* get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 */\
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\
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                     "psllw $3, %%mm6;" /* Promote precision */\
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                     "psllw $3, %%mm7;" /* Promote precision */\
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\
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                     "psubw "Y_OFFSET"(%4), %%mm6;" /* Y -= 16 */\
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                     "psubw "Y_OFFSET"(%4), %%mm7;" /* Y -= 16 */\
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\
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                     "pmulhw "Y_COEFF"(%4), %%mm6;" /* Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 */\
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                     "pmulhw "Y_COEFF"(%4), %%mm7;" /* Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 */\
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\
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                     /* Do the addition part of the conversion for even and odd pixels,
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                        register usage:
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                        mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,
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                        mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,
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                        mm6 -> Y even, mm7 -> Y odd */\
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                     "movq %%mm0, %%mm3;" /* Copy Cblue */\
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                     "movq %%mm1, %%mm4;" /* Copy Cred */\
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                     "movq %%mm2, %%mm5;" /* Copy Cgreen */\
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\
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                     "paddsw %%mm6, %%mm0;" /* Y even + Cblue 00 B6 00 B4 00 B2 00 B0 */\
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                     "paddsw %%mm7, %%mm3;" /* Y odd + Cblue 00 B7 00 B5 00 B3 00 B1 */\
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\
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                     "paddsw %%mm6, %%mm1;" /* Y even + Cred 00 R6 00 R4 00 R2 00 R0 */\
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                     "paddsw %%mm7, %%mm4;" /* Y odd + Cred 00 R7 00 R5 00 R3 00 R1 */\
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\
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                     "paddsw %%mm6, %%mm2;" /* Y even + Cgreen 00 G6 00 G4 00 G2 00 G0 */\
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                     "paddsw %%mm7, %%mm5;" /* Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1 */\
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\
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                     /* Limit RGB even to 0..255 */\
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                     "packuswb %%mm0, %%mm0;" /* B6 B4 B2 B0  B6 B4 B2 B0 */\
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                     "packuswb %%mm1, %%mm1;" /* R6 R4 R2 R0  R6 R4 R2 R0 */\
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                     "packuswb %%mm2, %%mm2;" /* G6 G4 G2 G0  G6 G4 G2 G0 */\
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\
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                     /* Limit RGB odd to 0..255 */\
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                     "packuswb %%mm3, %%mm3;" /* B7 B5 B3 B1  B7 B5 B3 B1 */\
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                     "packuswb %%mm4, %%mm4;" /* R7 R5 R3 R1  R7 R5 R3 R1 */\
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                     "packuswb %%mm5, %%mm5;" /* G7 G5 G3 G1  G7 G5 G3 G1 */\
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\
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                     /* Interleave RGB even and odd */\
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                     "punpcklbw %%mm3, %%mm0;" /* B7 B6 B5 B4 B3 B2 B1 B0 */\
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                     "punpcklbw %%mm4, %%mm1;" /* R7 R6 R5 R4 R3 R2 R1 R0 */\
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                     "punpcklbw %%mm5, %%mm2;" /* G7 G6 G5 G4 G3 G2 G1 G0 */\
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static inline int RENAME(yuv420_rgb16)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
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             int srcSliceH, uint8_t* dst[], int dstStride[]){
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    int y, h_size;
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    if(c->srcFormat == PIX_FMT_YUV422P){
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        srcStride[1] *= 2;
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        srcStride[2] *= 2;
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    }
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    h_size= (c->dstW+7)&~7;
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    if(h_size*2 > dstStride[0]) h_size-=8;
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    __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
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//printf("%X %X %X %X %X %X %X %X %X %X\n", (int)&c->redDither, (int)&b5Dither, (int)src[0], (int)src[1], (int)src[2], (int)dst[0],
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//srcStride[0],srcStride[1],srcStride[2],dstStride[0]);
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    for (y= 0; y<srcSliceH; y++ ) {
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        uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
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        uint8_t *_py = src[0] + y*srcStride[0];
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        uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
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        uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
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        long index= -h_size/2;
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        b5Dither= dither8[y&1];
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        g6Dither= dither4[y&1];
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        g5Dither= dither8[y&1];
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        r5Dither= dither8[(y+1)&1];
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            /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
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               pixels in each iteration */
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            __asm__ __volatile__ (
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        /* load data for start of next scan line */
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                     "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
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                     "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
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                     "movq (%5, %0, 2), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
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//                    ".balign 16                        \n\t"
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                    "1:                                \n\t"
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/* no speed diference on my p3@500 with prefetch,
162
 * if it is faster for anyone with -benchmark then tell me
163
                        PREFETCH" 64(%0) \n\t"
164
                        PREFETCH" 64(%1) \n\t"
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                        PREFETCH" 64(%2) \n\t"
166
*/
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YUV2RGB
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#ifdef DITHER1XBPP
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                        "paddusb "MANGLE(b5Dither)", %%mm0;"
171
                        "paddusb "MANGLE(g6Dither)", %%mm2;"
172
                        "paddusb "MANGLE(r5Dither)", %%mm1;"
173
#endif
174
                     /* mask unneeded bits off */
175
                     "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
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                     "pand "MANGLE(mmx_grnmask)", %%mm2;" /* g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0 */
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                     "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
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179
                     "psrlw $3,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
180
                     "pxor %%mm4, %%mm4;" /* zero mm4 */
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182
                     "movq %%mm0, %%mm5;" /* Copy B7-B0 */
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                     "movq %%mm2, %%mm7;" /* Copy G7-G0 */
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185
                     /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
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                     "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
187
                     "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
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189
                     "psllw $3, %%mm2;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
190
                     "por %%mm2, %%mm0;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
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192
                     "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
193
                     MOVNTQ " %%mm0, (%1);" /* store pixel 0-3 */
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195
                     /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
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                     "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
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                     "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
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199
                     "psllw $3, %%mm7;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
200
                     "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
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202
                     "por %%mm7, %%mm5;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
203
                     "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
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205
                     MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */
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207
                     "add $16, %1                        \n\t"
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                     "add $4, %0                        \n\t"
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                     " js 1b                                \n\t"
210
                     
211
                     : "+r" (index), "+r" (_image)
212
                     : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
213
                     );
214
    }
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216
    __asm__ __volatile__ (EMMS);
217
    
218
    return srcSliceH;
219
}
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static inline int RENAME(yuv420_rgb15)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
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             int srcSliceH, uint8_t* dst[], int dstStride[]){
223
    int y, h_size;
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225
    if(c->srcFormat == PIX_FMT_YUV422P){
226
        srcStride[1] *= 2;
227
        srcStride[2] *= 2;
228
    }
229

    
230
    h_size= (c->dstW+7)&~7;
231
    if(h_size*2 > dstStride[0]) h_size-=8;
232
    
233
    __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
234
//printf("%X %X %X %X %X %X %X %X %X %X\n", (int)&c->redDither, (int)&b5Dither, (int)src[0], (int)src[1], (int)src[2], (int)dst[0],
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//srcStride[0],srcStride[1],srcStride[2],dstStride[0]);
236
    for (y= 0; y<srcSliceH; y++ ) {
237
        uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
238
        uint8_t *_py = src[0] + y*srcStride[0];
239
        uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
240
        uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
241
        long index= -h_size/2;
242

    
243
        b5Dither= dither8[y&1];
244
        g6Dither= dither4[y&1];
245
        g5Dither= dither8[y&1];
246
        r5Dither= dither8[(y+1)&1];
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            /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
248
               pixels in each iteration */
249
            __asm__ __volatile__ (
250
        /* load data for start of next scan line */
251
                     "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
252
                     "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
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                     "movq (%5, %0, 2), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
254
//                    ".balign 16                        \n\t"
255
                    "1:                                \n\t"
256
YUV2RGB
257

    
258
#ifdef DITHER1XBPP
259
                        "paddusb "MANGLE(b5Dither)", %%mm0        \n\t"
260
                        "paddusb "MANGLE(g5Dither)", %%mm2        \n\t"
261
                        "paddusb "MANGLE(r5Dither)", %%mm1        \n\t"
262
#endif
263

    
264
                     /* mask unneeded bits off */
265
                     "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
266
                     "pand "MANGLE(mmx_redmask)", %%mm2;" /* g7g6g5g4 g3_0_0_0 g7g6g5g4 g3_0_0_0 */
267
                     "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
268

    
269
                     "psrlw $3,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
270
                     "psrlw $1,%%mm1;"            /* 0_r7r6r5  r4r3_0_0 0_r7r6r5 r4r3_0_0 */
271
                     "pxor %%mm4, %%mm4;" /* zero mm4 */
272

    
273
                     "movq %%mm0, %%mm5;" /* Copy B7-B0 */
274
                     "movq %%mm2, %%mm7;" /* Copy G7-G0 */
275

    
276
                     /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
277
                     "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3_0_0_0 */
278
                     "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
279

    
280
                     "psllw $2, %%mm2;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
281
                     "por %%mm2, %%mm0;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
282

    
283
                     "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
284
                     MOVNTQ " %%mm0, (%1);" /* store pixel 0-3 */
285

    
286
                     /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
287
                     "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 0_g7g6g5 g4g3_0_0 */
288
                     "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
289

    
290
                     "psllw $2, %%mm7;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
291
                     "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
292

    
293
                     "por %%mm7, %%mm5;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
294
                     "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
295

    
296
                     MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */
297
                     
298
                     "add $16, %1                        \n\t"
299
                     "add $4, %0                        \n\t"
300
                     " js 1b                                \n\t"
301
                     : "+r" (index), "+r" (_image)
302
                     : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
303
                     );
304
    }
305

    
306
    __asm__ __volatile__ (EMMS);
307
    return srcSliceH;
308
}
309

    
310
static inline int RENAME(yuv420_rgb24)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
311
             int srcSliceH, uint8_t* dst[], int dstStride[]){
312
    int y, h_size;
313

    
314
    if(c->srcFormat == PIX_FMT_YUV422P){
315
        srcStride[1] *= 2;
316
        srcStride[2] *= 2;
317
    }
318

    
319
    h_size= (c->dstW+7)&~7;
320
    if(h_size*3 > dstStride[0]) h_size-=8;
321
    
322
    __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
323

    
324
    for (y= 0; y<srcSliceH; y++ ) {
325
        uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
326
        uint8_t *_py = src[0] + y*srcStride[0];
327
        uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
328
        uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
329
        long index= -h_size/2;
330

    
331
            /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
332
               pixels in each iteration */
333
            __asm__ __volatile__ (
334
        /* load data for start of next scan line */
335
                     "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
336
                     "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
337
                     "movq (%5, %0, 2), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
338
//                    ".balign 16                        \n\t"
339
                    "1:                                \n\t"
340
YUV2RGB
341
        /* mm0=B, %%mm2=G, %%mm1=R */
342
#ifdef HAVE_MMX2
343
                        "movq "MANGLE(M24A)", %%mm4        \n\t"
344
                        "movq "MANGLE(M24C)", %%mm7        \n\t"
345
                        "pshufw $0x50, %%mm0, %%mm5        \n\t" /* B3 B2 B3 B2  B1 B0 B1 B0 */
346
                        "pshufw $0x50, %%mm2, %%mm3        \n\t" /* G3 G2 G3 G2  G1 G0 G1 G0 */
347
                        "pshufw $0x00, %%mm1, %%mm6        \n\t" /* R1 R0 R1 R0  R1 R0 R1 R0 */
348

    
349
                        "pand %%mm4, %%mm5                \n\t" /*    B2        B1       B0 */
350
                        "pand %%mm4, %%mm3                \n\t" /*    G2        G1       G0 */
351
                        "pand %%mm7, %%mm6                \n\t" /*       R1        R0       */
352

    
353
                        "psllq $8, %%mm3                \n\t" /* G2        G1       G0    */
354
                        "por %%mm5, %%mm6                \n\t"
355
                        "por %%mm3, %%mm6                \n\t"
356
                        MOVNTQ" %%mm6, (%1)                \n\t"
357

    
358
                        "psrlq $8, %%mm2                \n\t" /* 00 G7 G6 G5  G4 G3 G2 G1 */
359
                        "pshufw $0xA5, %%mm0, %%mm5        \n\t" /* B5 B4 B5 B4  B3 B2 B3 B2 */
360
                        "pshufw $0x55, %%mm2, %%mm3        \n\t" /* G4 G3 G4 G3  G4 G3 G4 G3 */
361
                        "pshufw $0xA5, %%mm1, %%mm6        \n\t" /* R5 R4 R5 R4  R3 R2 R3 R2 */
362

    
363
                        "pand "MANGLE(M24B)", %%mm5        \n\t" /* B5       B4        B3    */
364
                        "pand %%mm7, %%mm3                \n\t" /*       G4        G3       */
365
                        "pand %%mm4, %%mm6                \n\t" /*    R4        R3       R2 */
366

    
367
                        "por %%mm5, %%mm3                \n\t" /* B5    G4 B4     G3 B3    */
368
                        "por %%mm3, %%mm6                \n\t"
369
                        MOVNTQ" %%mm6, 8(%1)                \n\t"
370

    
371
                        "pshufw $0xFF, %%mm0, %%mm5        \n\t" /* B7 B6 B7 B6  B7 B6 B6 B7 */
372
                        "pshufw $0xFA, %%mm2, %%mm3        \n\t" /* 00 G7 00 G7  G6 G5 G6 G5 */
373
                        "pshufw $0xFA, %%mm1, %%mm6        \n\t" /* R7 R6 R7 R6  R5 R4 R5 R4 */
374
                        "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
375

    
376
                        "pand %%mm7, %%mm5                \n\t" /*       B7        B6       */
377
                        "pand %%mm4, %%mm3                \n\t" /*    G7        G6       G5 */
378
                        "pand "MANGLE(M24B)", %%mm6        \n\t" /* R7       R6        R5    */
379
                        "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
380
\
381
                        "por %%mm5, %%mm3                \n\t"
382
                        "por %%mm3, %%mm6                \n\t"
383
                        MOVNTQ" %%mm6, 16(%1)                \n\t"
384
                        "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
385
                        "pxor %%mm4, %%mm4                \n\t"
386

    
387
#else
388

    
389
                        "pxor %%mm4, %%mm4                \n\t"
390
                        "movq %%mm0, %%mm5                \n\t" /* B */
391
                        "movq %%mm1, %%mm6                \n\t" /* R */
392
                        "punpcklbw %%mm2, %%mm0                \n\t" /* GBGBGBGB 0 */
393
                        "punpcklbw %%mm4, %%mm1                \n\t" /* 0R0R0R0R 0 */
394
                        "punpckhbw %%mm2, %%mm5                \n\t" /* GBGBGBGB 2 */
395
                        "punpckhbw %%mm4, %%mm6                \n\t" /* 0R0R0R0R 2 */
396
                        "movq %%mm0, %%mm7                \n\t" /* GBGBGBGB 0 */
397
                        "movq %%mm5, %%mm3                \n\t" /* GBGBGBGB 2 */
398
                        "punpcklwd %%mm1, %%mm7                \n\t" /* 0RGB0RGB 0 */
399
                        "punpckhwd %%mm1, %%mm0                \n\t" /* 0RGB0RGB 1 */
400
                        "punpcklwd %%mm6, %%mm5                \n\t" /* 0RGB0RGB 2 */
401
                        "punpckhwd %%mm6, %%mm3                \n\t" /* 0RGB0RGB 3 */
402

    
403
                        "movq %%mm7, %%mm2                \n\t" /* 0RGB0RGB 0 */
404
                        "movq %%mm0, %%mm6                \n\t" /* 0RGB0RGB 1 */
405
                        "movq %%mm5, %%mm1                \n\t" /* 0RGB0RGB 2 */
406
                        "movq %%mm3, %%mm4                \n\t" /* 0RGB0RGB 3 */
407

    
408
                        "psllq $40, %%mm7                \n\t" /* RGB00000 0 */
409
                        "psllq $40, %%mm0                \n\t" /* RGB00000 1 */
410
                        "psllq $40, %%mm5                \n\t" /* RGB00000 2 */
411
                        "psllq $40, %%mm3                \n\t" /* RGB00000 3 */
412

    
413
                        "punpckhdq %%mm2, %%mm7                \n\t" /* 0RGBRGB0 0 */
414
                        "punpckhdq %%mm6, %%mm0                \n\t" /* 0RGBRGB0 1 */
415
                        "punpckhdq %%mm1, %%mm5                \n\t" /* 0RGBRGB0 2 */
416
                        "punpckhdq %%mm4, %%mm3                \n\t" /* 0RGBRGB0 3 */
417

    
418
                        "psrlq $8, %%mm7                \n\t" /* 00RGBRGB 0 */
419
                        "movq %%mm0, %%mm6                \n\t" /* 0RGBRGB0 1 */
420
                        "psllq $40, %%mm0                \n\t" /* GB000000 1 */
421
                        "por %%mm0, %%mm7                \n\t" /* GBRGBRGB 0 */
422
                        MOVNTQ" %%mm7, (%1)                \n\t"
423

    
424
                        "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
425

    
426
                        "psrlq $24, %%mm6                \n\t" /* 0000RGBR 1 */
427
                        "movq %%mm5, %%mm1                \n\t" /* 0RGBRGB0 2 */
428
                        "psllq $24, %%mm5                \n\t" /* BRGB0000 2 */
429
                        "por %%mm5, %%mm6                \n\t" /* BRGBRGBR 1 */
430
                        MOVNTQ" %%mm6, 8(%1)                \n\t"
431

    
432
                        "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
433

    
434
                        "psrlq $40, %%mm1                \n\t" /* 000000RG 2 */
435
                        "psllq $8, %%mm3                \n\t" /* RGBRGB00 3 */
436
                        "por %%mm3, %%mm1                \n\t" /* RGBRGBRG 2 */
437
                        MOVNTQ" %%mm1, 16(%1)                \n\t"
438

    
439
                        "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
440
                        "pxor %%mm4, %%mm4                \n\t"
441
#endif
442
                     
443
                     "add $24, %1                        \n\t"
444
                     "add $4, %0                        \n\t"
445
                     " js 1b                                \n\t"
446
                     
447
                     : "+r" (index), "+r" (_image)
448
                     : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
449
                     );
450
    }
451

    
452
    __asm__ __volatile__ (EMMS);
453
    return srcSliceH;
454
}
455

    
456
static inline int RENAME(yuv420_rgb32)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
457
             int srcSliceH, uint8_t* dst[], int dstStride[]){
458
    int y, h_size;
459

    
460
    if(c->srcFormat == PIX_FMT_YUV422P){
461
        srcStride[1] *= 2;
462
        srcStride[2] *= 2;
463
    }
464

    
465
    h_size= (c->dstW+7)&~7;
466
    if(h_size*4 > dstStride[0]) h_size-=8;
467
    
468
    __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
469

    
470
    for (y= 0; y<srcSliceH; y++ ) {
471
        uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
472
        uint8_t *_py = src[0] + y*srcStride[0];
473
        uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
474
        uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
475
        long index= -h_size/2;
476

    
477
            /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
478
               pixels in each iteration */
479
            __asm__ __volatile__ (
480
        /* load data for start of next scan line */
481
                     "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
482
                     "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
483
                     "movq (%5, %0, 2), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
484
//                    ".balign 16                        \n\t"
485
                    "1:                                \n\t"
486
YUV2RGB
487
                     /* convert RGB plane to RGB packed format,
488
                        mm0 -> B, mm1 -> R, mm2 -> G, mm3 -> 0,
489
                        mm4 -> GB, mm5 -> AR pixel 4-7,
490
                        mm6 -> GB, mm7 -> AR pixel 0-3 */
491
                     "pxor %%mm3, %%mm3;" /* zero mm3 */
492

    
493
                     "movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
494
                     "movq %%mm1, %%mm7;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
495

    
496
                     "movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
497
                     "movq %%mm1, %%mm5;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
498

    
499
                     "punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */
500
                     "punpcklbw %%mm3, %%mm7;" /* 00 R3 00 R2 00 R1 00 R0 */
501

    
502
                     "punpcklwd %%mm7, %%mm6;" /* 00 R1 B1 G1 00 R0 B0 G0 */
503
                     MOVNTQ " %%mm6, (%1);" /* Store ARGB1 ARGB0 */
504

    
505
                     "movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
506
                     "punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */
507

    
508
                     "punpckhwd %%mm7, %%mm6;" /* 00 R3 G3 B3 00 R2 B3 G2 */
509
                     MOVNTQ " %%mm6, 8 (%1);" /* Store ARGB3 ARGB2 */
510

    
511
                     "punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */
512
                     "punpckhbw %%mm3, %%mm5;" /* 00 R7 00 R6 00 R5 00 R4 */
513

    
514
                     "punpcklwd %%mm5, %%mm4;" /* 00 R5 B5 G5 00 R4 B4 G4 */
515
                     MOVNTQ " %%mm4, 16 (%1);" /* Store ARGB5 ARGB4 */
516

    
517
                     "movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
518
                     "punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */
519

    
520
                     "punpckhwd %%mm5, %%mm4;" /* 00 R7 G7 B7 00 R6 B6 G6 */
521
                     MOVNTQ " %%mm4, 24 (%1);" /* Store ARGB7 ARGB6 */
522

    
523
                     "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
524
                     "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
525

    
526
                     "pxor %%mm4, %%mm4;" /* zero mm4 */
527
                     "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
528

    
529
                     "add $32, %1                        \n\t"
530
                     "add $4, %0                        \n\t"
531
                     " js 1b                                \n\t"
532
                     
533
                     : "+r" (index), "+r" (_image)
534
                     : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
535
                     );
536
    }
537

    
538
    __asm__ __volatile__ (EMMS);
539
    return srcSliceH;
540
}