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ffmpeg / libswscale / yuv2rgb_template.c @ 47772399

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/*
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 * yuv2rgb_mmx.c, Software YUV to RGB converter with Intel MMX "technology"
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 *
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 * Copyright (C) 2000, Silicon Integrated System Corp.
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 *
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 * Author: Olie Lho <ollie@sis.com.tw>
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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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 * 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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#undef MOVNTQ
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#undef EMMS
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#undef SFENCE
32

    
33
#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
39

    
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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 */\
122

    
123

    
124
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[]){
126
    int y, h_size;
127

    
128
    if(c->srcFormat == PIX_FMT_YUV422P){
129
        srcStride[1] *= 2;
130
        srcStride[2] *= 2;
131
    }
132

    
133
    h_size= (c->dstW+7)&~7;
134
    if(h_size*2 > FFABS(dstStride[0])) h_size-=8;
135

    
136
    __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
137
    //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]);
139
    for (y= 0; y<srcSliceH; y++ ) {
140
        uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
141
        uint8_t *_py = src[0] + y*srcStride[0];
142
        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;
145

    
146
        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];
150
        /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
151
           pixels in each iteration */
152
        __asm__ __volatile__ (
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        /* load data for start of next scan line */
154
        "movd    (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
155
        "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"
158
        "1:             \n\t"
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        /* no speed diference on my p3@500 with prefetch,
160
         * if it is faster for anyone with -benchmark then tell me
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        PREFETCH" 64(%0) \n\t"
162
        PREFETCH" 64(%1) \n\t"
163
        PREFETCH" 64(%2) \n\t"
164
        */
165
YUV2RGB
166

    
167
#ifdef DITHER1XBPP
168
        "paddusb "MANGLE(b5Dither)", %%mm0;"
169
        "paddusb "MANGLE(g6Dither)", %%mm2;"
170
        "paddusb "MANGLE(r5Dither)", %%mm1;"
171
#endif
172
        /* mask unneeded bits off */
173
        "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
174
        "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 */
176

    
177
        "psrlw   $3, %%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
178
        "pxor %%mm4, %%mm4;" /* zero mm4 */
179

    
180
        "movq %%mm0, %%mm5;" /* Copy B7-B0 */
181
        "movq %%mm2, %%mm7;" /* Copy G7-G0 */
182

    
183
        /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
184
        "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
185
        "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
186

    
187
        "psllw  $3, %%mm2;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
188
        "por %%mm2, %%mm0;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
189

    
190
        "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
191
        MOVNTQ "      %%mm0, (%1);" /* store pixel 0-3 */
192

    
193
        /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
194
        "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
195
        "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
196

    
197
        "psllw        $3, %%mm7;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
198
        "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
199

    
200
        "por       %%mm7, %%mm5;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
201
        "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
202

    
203
        MOVNTQ "   %%mm5, 8 (%1);" /* store pixel 4-7 */
204

    
205
        "add $16, %1    \n\t"
206
        "add  $4, %0    \n\t"
207
        " js  1b        \n\t"
208

    
209
        : "+r" (index), "+r" (_image)
210
        : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
211
        );
212
    }
213

    
214
    __asm__ __volatile__ (EMMS);
215

    
216
    return srcSliceH;
217
}
218

    
219
static inline int RENAME(yuv420_rgb15)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
220
                                       int srcSliceH, uint8_t* dst[], int dstStride[]){
221
    int y, h_size;
222

    
223
    if(c->srcFormat == PIX_FMT_YUV422P){
224
        srcStride[1] *= 2;
225
        srcStride[2] *= 2;
226
    }
227

    
228
    h_size= (c->dstW+7)&~7;
229
    if(h_size*2 > FFABS(dstStride[0])) h_size-=8;
230

    
231
    __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
232
    //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],
233
    //srcStride[0],srcStride[1],srcStride[2],dstStride[0]);
234
    for (y= 0; y<srcSliceH; y++ ) {
235
        uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
236
        uint8_t *_py = src[0] + y*srcStride[0];
237
        uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
238
        uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
239
        long index= -h_size/2;
240

    
241
        b5Dither= dither8[y&1];
242
        g6Dither= dither4[y&1];
243
        g5Dither= dither8[y&1];
244
        r5Dither= dither8[(y+1)&1];
245
        /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
246
           pixels in each iteration */
247
        __asm__ __volatile__ (
248
        /* load data for start of next scan line */
249
        "movd    (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
250
        "movd    (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
251
        "movq (%5, %0, 2), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
252
        //".balign 16     \n\t"
253
        "1:             \n\t"
254
YUV2RGB
255

    
256
#ifdef DITHER1XBPP
257
        "paddusb "MANGLE(b5Dither)", %%mm0  \n\t"
258
        "paddusb "MANGLE(g5Dither)", %%mm2  \n\t"
259
        "paddusb "MANGLE(r5Dither)", %%mm1  \n\t"
260
#endif
261

    
262
        /* mask unneeded bits off */
263
        "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
264
        "pand "MANGLE(mmx_redmask)", %%mm2;" /* g7g6g5g4 g3_0_0_0 g7g6g5g4 g3_0_0_0 */
265
        "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
266

    
267
        "psrlw   $3, %%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
268
        "psrlw   $1, %%mm1;" /* 0_r7r6r5  r4r3_0_0 0_r7r6r5 r4r3_0_0 */
269
        "pxor %%mm4, %%mm4;" /* zero mm4 */
270

    
271
        "movq %%mm0, %%mm5;" /* Copy B7-B0 */
272
        "movq %%mm2, %%mm7;" /* Copy G7-G0 */
273

    
274
        /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
275
        "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3_0_0_0 */
276
        "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
277

    
278
        "psllw  $2, %%mm2;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
279
        "por %%mm2, %%mm0;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
280

    
281
        "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
282
        MOVNTQ "      %%mm0, (%1);"  /* store pixel 0-3 */
283

    
284
        /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
285
        "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 0_g7g6g5 g4g3_0_0 */
286
        "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
287

    
288
        "psllw        $2, %%mm7;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
289
        "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
290

    
291
        "por       %%mm7, %%mm5;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
292
        "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
293

    
294
        MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */
295

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

    
304
    __asm__ __volatile__ (EMMS);
305
    return srcSliceH;
306
}
307

    
308
static inline int RENAME(yuv420_rgb24)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
309
                                       int srcSliceH, uint8_t* dst[], int dstStride[]){
310
    int y, h_size;
311

    
312
    if(c->srcFormat == PIX_FMT_YUV422P){
313
        srcStride[1] *= 2;
314
        srcStride[2] *= 2;
315
    }
316

    
317
    h_size= (c->dstW+7)&~7;
318
    if(h_size*3 > FFABS(dstStride[0])) h_size-=8;
319

    
320
    __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
321

    
322
    for (y= 0; y<srcSliceH; y++ ) {
323
        uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
324
        uint8_t *_py = src[0] + y*srcStride[0];
325
        uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
326
        uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
327
        long index= -h_size/2;
328

    
329
        /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
330
           pixels in each iteration */
331
        __asm__ __volatile__ (
332
        /* load data for start of next scan line */
333
        "movd    (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
334
        "movd    (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
335
        "movq (%5, %0, 2), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
336
        //".balign 16     \n\t"
337
        "1:             \n\t"
338
YUV2RGB
339
        /* mm0=B, %%mm2=G, %%mm1=R */
340
#ifdef HAVE_MMX2
341
        "movq "MANGLE(M24A)", %%mm4     \n\t"
342
        "movq "MANGLE(M24C)", %%mm7     \n\t"
343
        "pshufw $0x50, %%mm0, %%mm5     \n\t" /* B3 B2 B3 B2  B1 B0 B1 B0 */
344
        "pshufw $0x50, %%mm2, %%mm3     \n\t" /* G3 G2 G3 G2  G1 G0 G1 G0 */
345
        "pshufw $0x00, %%mm1, %%mm6     \n\t" /* R1 R0 R1 R0  R1 R0 R1 R0 */
346

    
347
        "pand   %%mm4, %%mm5            \n\t" /*    B2        B1       B0 */
348
        "pand   %%mm4, %%mm3            \n\t" /*    G2        G1       G0 */
349
        "pand   %%mm7, %%mm6            \n\t" /*       R1        R0       */
350

    
351
        "psllq     $8, %%mm3            \n\t" /* G2        G1       G0    */
352
        "por    %%mm5, %%mm6            \n\t"
353
        "por    %%mm3, %%mm6            \n\t"
354
        MOVNTQ" %%mm6, (%1)             \n\t"
355

    
356
        "psrlq     $8, %%mm2            \n\t" /* 00 G7 G6 G5  G4 G3 G2 G1 */
357
        "pshufw $0xA5, %%mm0, %%mm5     \n\t" /* B5 B4 B5 B4  B3 B2 B3 B2 */
358
        "pshufw $0x55, %%mm2, %%mm3     \n\t" /* G4 G3 G4 G3  G4 G3 G4 G3 */
359
        "pshufw $0xA5, %%mm1, %%mm6     \n\t" /* R5 R4 R5 R4  R3 R2 R3 R2 */
360

    
361
        "pand "MANGLE(M24B)", %%mm5     \n\t" /* B5       B4        B3    */
362
        "pand          %%mm7, %%mm3     \n\t" /*       G4        G3       */
363
        "pand          %%mm4, %%mm6     \n\t" /*    R4        R3       R2 */
364

    
365
        "por    %%mm5, %%mm3            \n\t" /* B5    G4 B4     G3 B3    */
366
        "por    %%mm3, %%mm6            \n\t"
367
        MOVNTQ" %%mm6, 8(%1)            \n\t"
368

    
369
        "pshufw $0xFF, %%mm0, %%mm5     \n\t" /* B7 B6 B7 B6  B7 B6 B6 B7 */
370
        "pshufw $0xFA, %%mm2, %%mm3     \n\t" /* 00 G7 00 G7  G6 G5 G6 G5 */
371
        "pshufw $0xFA, %%mm1, %%mm6     \n\t" /* R7 R6 R7 R6  R5 R4 R5 R4 */
372
        "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
373

    
374
        "pand          %%mm7, %%mm5     \n\t" /*       B7        B6       */
375
        "pand          %%mm4, %%mm3     \n\t" /*    G7        G6       G5 */
376
        "pand "MANGLE(M24B)", %%mm6     \n\t" /* R7       R6        R5    */
377
        "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
378
\
379
        "por          %%mm5, %%mm3      \n\t"
380
        "por          %%mm3, %%mm6      \n\t"
381
        MOVNTQ"       %%mm6, 16(%1)     \n\t"
382
        "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
383
        "pxor         %%mm4, %%mm4      \n\t"
384

    
385
#else
386

    
387
        "pxor      %%mm4, %%mm4     \n\t"
388
        "movq      %%mm0, %%mm5     \n\t" /* B */
389
        "movq      %%mm1, %%mm6     \n\t" /* R */
390
        "punpcklbw %%mm2, %%mm0     \n\t" /* GBGBGBGB 0 */
391
        "punpcklbw %%mm4, %%mm1     \n\t" /* 0R0R0R0R 0 */
392
        "punpckhbw %%mm2, %%mm5     \n\t" /* GBGBGBGB 2 */
393
        "punpckhbw %%mm4, %%mm6     \n\t" /* 0R0R0R0R 2 */
394
        "movq      %%mm0, %%mm7     \n\t" /* GBGBGBGB 0 */
395
        "movq      %%mm5, %%mm3     \n\t" /* GBGBGBGB 2 */
396
        "punpcklwd %%mm1, %%mm7     \n\t" /* 0RGB0RGB 0 */
397
        "punpckhwd %%mm1, %%mm0     \n\t" /* 0RGB0RGB 1 */
398
        "punpcklwd %%mm6, %%mm5     \n\t" /* 0RGB0RGB 2 */
399
        "punpckhwd %%mm6, %%mm3     \n\t" /* 0RGB0RGB 3 */
400

    
401
        "movq      %%mm7, %%mm2     \n\t" /* 0RGB0RGB 0 */
402
        "movq      %%mm0, %%mm6     \n\t" /* 0RGB0RGB 1 */
403
        "movq      %%mm5, %%mm1     \n\t" /* 0RGB0RGB 2 */
404
        "movq      %%mm3, %%mm4     \n\t" /* 0RGB0RGB 3 */
405

    
406
        "psllq       $40, %%mm7     \n\t" /* RGB00000 0 */
407
        "psllq       $40, %%mm0     \n\t" /* RGB00000 1 */
408
        "psllq       $40, %%mm5     \n\t" /* RGB00000 2 */
409
        "psllq       $40, %%mm3     \n\t" /* RGB00000 3 */
410

    
411
        "punpckhdq %%mm2, %%mm7     \n\t" /* 0RGBRGB0 0 */
412
        "punpckhdq %%mm6, %%mm0     \n\t" /* 0RGBRGB0 1 */
413
        "punpckhdq %%mm1, %%mm5     \n\t" /* 0RGBRGB0 2 */
414
        "punpckhdq %%mm4, %%mm3     \n\t" /* 0RGBRGB0 3 */
415

    
416
        "psrlq        $8, %%mm7     \n\t" /* 00RGBRGB 0 */
417
        "movq      %%mm0, %%mm6     \n\t" /* 0RGBRGB0 1 */
418
        "psllq       $40, %%mm0     \n\t" /* GB000000 1 */
419
        "por       %%mm0, %%mm7     \n\t" /* GBRGBRGB 0 */
420
        MOVNTQ"    %%mm7, (%1)      \n\t"
421

    
422
        "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
423

    
424
        "psrlq       $24, %%mm6     \n\t" /* 0000RGBR 1 */
425
        "movq      %%mm5, %%mm1     \n\t" /* 0RGBRGB0 2 */
426
        "psllq       $24, %%mm5     \n\t" /* BRGB0000 2 */
427
        "por       %%mm5, %%mm6     \n\t" /* BRGBRGBR 1 */
428
        MOVNTQ"    %%mm6, 8(%1)     \n\t"
429

    
430
        "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
431

    
432
        "psrlq       $40, %%mm1     \n\t" /* 000000RG 2 */
433
        "psllq        $8, %%mm3     \n\t" /* RGBRGB00 3 */
434
        "por       %%mm3, %%mm1     \n\t" /* RGBRGBRG 2 */
435
        MOVNTQ"    %%mm1, 16(%1)    \n\t"
436

    
437
        "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
438
        "pxor      %%mm4, %%mm4     \n\t"
439
#endif
440

    
441
        "add $24, %1    \n\t"
442
        "add  $4, %0    \n\t"
443
        " js  1b        \n\t"
444

    
445
        : "+r" (index), "+r" (_image)
446
        : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
447
        );
448
    }
449

    
450
    __asm__ __volatile__ (EMMS);
451
    return srcSliceH;
452
}
453

    
454
static inline int RENAME(yuv420_rgb32)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
455
                                       int srcSliceH, uint8_t* dst[], int dstStride[]){
456
    int y, h_size;
457

    
458
    if(c->srcFormat == PIX_FMT_YUV422P){
459
        srcStride[1] *= 2;
460
        srcStride[2] *= 2;
461
    }
462

    
463
    h_size= (c->dstW+7)&~7;
464
    if(h_size*4 > FFABS(dstStride[0])) h_size-=8;
465

    
466
    __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
467

    
468
    for (y= 0; y<srcSliceH; y++ ) {
469
        uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
470
        uint8_t *_py = src[0] + y*srcStride[0];
471
        uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
472
        uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
473
        long index= -h_size/2;
474

    
475
        /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
476
           pixels in each iteration */
477
        __asm__ __volatile__ (
478
        /* load data for start of next scan line */
479
        "movd    (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
480
        "movd    (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
481
        "movq (%5, %0, 2), %%mm6;" /* Load 8  Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
482
        //".balign 16     \n\t"
483
        "1:             \n\t"
484
YUV2RGB
485
        /* convert RGB plane to RGB packed format,
486
           mm0 ->  B, mm1 -> R, mm2 -> G, mm3 -> 0,
487
           mm4 -> GB, mm5 -> AR pixel 4-7,
488
           mm6 -> GB, mm7 -> AR pixel 0-3 */
489
        "pxor      %%mm3, %%mm3;"   /* zero mm3 */
490

    
491
        "movq      %%mm0, %%mm6;"   /* B7 B6 B5 B4 B3 B2 B1 B0 */
492
        "movq      %%mm1, %%mm7;"   /* R7 R6 R5 R4 R3 R2 R1 R0 */
493

    
494
        "movq      %%mm0, %%mm4;"   /* B7 B6 B5 B4 B3 B2 B1 B0 */
495
        "movq      %%mm1, %%mm5;"   /* R7 R6 R5 R4 R3 R2 R1 R0 */
496

    
497
        "punpcklbw %%mm2, %%mm6;"   /* G3 B3 G2 B2 G1 B1 G0 B0 */
498
        "punpcklbw %%mm3, %%mm7;"   /* 00 R3 00 R2 00 R1 00 R0 */
499

    
500
        "punpcklwd %%mm7, %%mm6;"   /* 00 R1 B1 G1 00 R0 B0 G0 */
501
        MOVNTQ "   %%mm6, (%1);"    /* Store ARGB1 ARGB0 */
502

    
503
        "movq      %%mm0, %%mm6;"   /* B7 B6 B5 B4 B3 B2 B1 B0 */
504
        "punpcklbw %%mm2, %%mm6;"   /* G3 B3 G2 B2 G1 B1 G0 B0 */
505

    
506
        "punpckhwd %%mm7, %%mm6;"   /* 00 R3 G3 B3 00 R2 B3 G2 */
507
        MOVNTQ "   %%mm6, 8 (%1);"  /* Store ARGB3 ARGB2 */
508

    
509
        "punpckhbw %%mm2, %%mm4;"   /* G7 B7 G6 B6 G5 B5 G4 B4 */
510
        "punpckhbw %%mm3, %%mm5;"   /* 00 R7 00 R6 00 R5 00 R4 */
511

    
512
        "punpcklwd %%mm5, %%mm4;"   /* 00 R5 B5 G5 00 R4 B4 G4 */
513
        MOVNTQ "   %%mm4, 16 (%1);" /* Store ARGB5 ARGB4 */
514

    
515
        "movq      %%mm0, %%mm4;"   /* B7 B6 B5 B4 B3 B2 B1 B0 */
516
        "punpckhbw %%mm2, %%mm4;"   /* G7 B7 G6 B6 G5 B5 G4 B4 */
517

    
518
        "punpckhwd %%mm5, %%mm4;"   /* 00 R7 G7 B7 00 R6 B6 G6 */
519
        MOVNTQ "   %%mm4, 24 (%1);" /* Store ARGB7 ARGB6 */
520

    
521
        "movd 4 (%2, %0), %%mm0;"   /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
522
        "movd 4 (%3, %0), %%mm1;"   /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
523

    
524
        "pxor         %%mm4, %%mm4;" /* zero mm4 */
525
        "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
526

    
527
        "add $32, %1    \n\t"
528
        "add  $4, %0    \n\t"
529
        " js  1b        \n\t"
530

    
531
        : "+r" (index), "+r" (_image)
532
        : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
533
        );
534
    }
535

    
536
    __asm__ __volatile__ (EMMS);
537
    return srcSliceH;
538
}