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* yuv2rgb_mmx.c, Software YUV to RGB coverter with Intel MMX "technology"
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* Copyright (C) 2000, Silicon Integrated System Corp.
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* Author: Olie Lho <ollie@sis.com.tw>
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* This file is part of mpeg2dec, a free MPEG-2 video decoder
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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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* 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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* You should have received a copy of the GNU General Public License
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* along with GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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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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/* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */
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#define MOVNTQ "movntq"
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#define SFENCE "sfence"
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/* Do the multiply part of the conversion for even and odd pixels,
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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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"psllw $3, %%mm0;" /* Promote precision */ \
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"psllw $3, %%mm1;" /* Promote precision */ \
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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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"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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"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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"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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"paddsw %%mm3, %%mm2;" /* Cb green + Cr green -> Cgreen */\
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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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"psrlw $8, %%mm7;" /* get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 */\
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"psllw $3, %%mm6;" /* Promote precision */\
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"psllw $3, %%mm7;" /* Promote precision */\
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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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"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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/* Do the addition part of the conversion for even and odd pixels,
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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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"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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"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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"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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/* 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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/* 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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/* 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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if(c->srcFormat == IMGFMT_422P){
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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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/* no speed diference on my p3@500 with prefetch,
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* if it is faster for anyone with -benchmark then tell me
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PREFETCH" 64(%0) \n\t"
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PREFETCH" 64(%1) \n\t"
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PREFETCH" 64(%2) \n\t"
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"paddusb "MANGLE(b5Dither)", %%mm0;"
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"paddusb "MANGLE(g6Dither)", %%mm2;"
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"paddusb "MANGLE(r5Dither)", %%mm1;"
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/* mask unneeded bits off */
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"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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"psrlw $3,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
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"pxor %%mm4, %%mm4;" /* zero mm4 */
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"movq %%mm0, %%mm5;" /* Copy B7-B0 */
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"movq %%mm2, %%mm7;" /* Copy G7-G0 */
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/* 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 */
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"punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
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"psllw $3, %%mm2;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
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"por %%mm2, %%mm0;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
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"movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
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MOVNTQ " %%mm0, (%1);" /* store pixel 0-3 */
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/* 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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"psllw $3, %%mm7;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
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"movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
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"por %%mm7, %%mm5;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
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"movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
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MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */
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: "+r" (index), "+r" (_image)
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: "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
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__asm__ __volatile__ (EMMS);
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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[]){
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if(c->srcFormat == IMGFMT_422P){
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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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"paddusb "MANGLE(b5Dither)", %%mm0 \n\t"
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"paddusb "MANGLE(g5Dither)", %%mm2 \n\t"
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"paddusb "MANGLE(r5Dither)", %%mm1 \n\t"
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/* mask unneeded bits off */
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"pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
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"pand "MANGLE(mmx_redmask)", %%mm2;" /* g7g6g5g4 g3_0_0_0 g7g6g5g4 g3_0_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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"psrlw $3,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
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"psrlw $1,%%mm1;" /* 0_r7r6r5 r4r3_0_0 0_r7r6r5 r4r3_0_0 */
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"pxor %%mm4, %%mm4;" /* zero mm4 */
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"movq %%mm0, %%mm5;" /* Copy B7-B0 */
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"movq %%mm2, %%mm7;" /* Copy G7-G0 */
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/* 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 g3_0_0_0 */
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"punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
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"psllw $2, %%mm2;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
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"por %%mm2, %%mm0;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
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"movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
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MOVNTQ " %%mm0, (%1);" /* store pixel 0-3 */
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/* 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 0_g7g6g5 g4g3_0_0 */
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"punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
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"psllw $2, %%mm7;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
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"movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
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"por %%mm7, %%mm5;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
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"movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
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MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */
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: "+r" (index), "+r" (_image)
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: "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
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__asm__ __volatile__ (EMMS);
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static inline int RENAME(yuv420_rgb24)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
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int srcSliceH, uint8_t* dst[], int dstStride[]){
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if(c->srcFormat == IMGFMT_422P){
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h_size= (c->dstW+7)&~7;
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if(h_size*3 > dstStride[0]) h_size-=8;
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__asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
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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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/* 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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/* mm0=B, %%mm2=G, %%mm1=R */
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"movq "MANGLE(M24A)", %%mm4 \n\t"
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"movq "MANGLE(M24C)", %%mm7 \n\t"
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"pshufw $0x50, %%mm0, %%mm5 \n\t" /* B3 B2 B3 B2 B1 B0 B1 B0 */
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"pshufw $0x50, %%mm2, %%mm3 \n\t" /* G3 G2 G3 G2 G1 G0 G1 G0 */
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"pshufw $0x00, %%mm1, %%mm6 \n\t" /* R1 R0 R1 R0 R1 R0 R1 R0 */
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"pand %%mm4, %%mm5 \n\t" /* B2 B1 B0 */
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"pand %%mm4, %%mm3 \n\t" /* G2 G1 G0 */
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"pand %%mm7, %%mm6 \n\t" /* R1 R0 */
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"psllq $8, %%mm3 \n\t" /* G2 G1 G0 */
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"por %%mm5, %%mm6 \n\t"
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"por %%mm3, %%mm6 \n\t"
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MOVNTQ" %%mm6, (%1) \n\t"
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"psrlq $8, %%mm2 \n\t" /* 00 G7 G6 G5 G4 G3 G2 G1 */
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"pshufw $0xA5, %%mm0, %%mm5 \n\t" /* B5 B4 B5 B4 B3 B2 B3 B2 */
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"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 */
363
"pand "MANGLE(M24B)", %%mm5 \n\t" /* B5 B4 B3 */
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"pand %%mm7, %%mm3 \n\t" /* G4 G3 */
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"pand %%mm4, %%mm6 \n\t" /* R4 R3 R2 */
367
"por %%mm5, %%mm3 \n\t" /* B5 G4 B4 G3 B3 */
368
"por %%mm3, %%mm6 \n\t"
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MOVNTQ" %%mm6, 8(%1) \n\t"
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"pshufw $0xFF, %%mm0, %%mm5 \n\t" /* B7 B6 B7 B6 B7 B6 B6 B7 */
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"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 */
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 */
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"
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 */
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 */
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 */
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 */
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"
424
"movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
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"
432
"movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
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"
439
"movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
440
"pxor %%mm4, %%mm4 \n\t"
447
: "+r" (index), "+r" (_image)
448
: "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
452
__asm__ __volatile__ (EMMS);
456
static inline int RENAME(yuv420_rgb32)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
457
int srcSliceH, uint8_t* dst[], int dstStride[]){
460
if(c->srcFormat == IMGFMT_422P){
465
h_size= (c->dstW+7)&~7;
466
if(h_size*4 > dstStride[0]) h_size-=8;
468
__asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
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;
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 */
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 */
493
"movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
494
"movq %%mm1, %%mm7;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
496
"movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
497
"movq %%mm1, %%mm5;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
499
"punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */
500
"punpcklbw %%mm3, %%mm7;" /* 00 R3 00 R2 00 R1 00 R0 */
502
"punpcklwd %%mm7, %%mm6;" /* 00 R1 B1 G1 00 R0 B0 G0 */
503
MOVNTQ " %%mm6, (%1);" /* Store ARGB1 ARGB0 */
505
"movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
506
"punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */
508
"punpckhwd %%mm7, %%mm6;" /* 00 R3 G3 B3 00 R2 B3 G2 */
509
MOVNTQ " %%mm6, 8 (%1);" /* Store ARGB3 ARGB2 */
511
"punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */
512
"punpckhbw %%mm3, %%mm5;" /* 00 R7 00 R6 00 R5 00 R4 */
514
"punpcklwd %%mm5, %%mm4;" /* 00 R5 B5 G5 00 R4 B4 G4 */
515
MOVNTQ " %%mm4, 16 (%1);" /* Store ARGB5 ARGB4 */
517
"movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
518
"punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */
520
"punpckhwd %%mm5, %%mm4;" /* 00 R7 G7 B7 00 R6 B6 G6 */
521
MOVNTQ " %%mm4, 24 (%1);" /* Store ARGB7 ARGB6 */
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 */
526
"pxor %%mm4, %%mm4;" /* zero mm4 */
527
"movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
533
: "+r" (index), "+r" (_image)
534
: "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
538
__asm__ __volatile__ (EMMS);
added
removed
postproc/yuv2rgb_template.c
