/* * yuv2rgb_mmx.c, Software YUV to RGB coverter with Intel MMX "technology" * * Copyright (C) 2000, Silicon Integrated System Corp. * All Rights Reserved. * * Author: Olie Lho * * This file is part of mpeg2dec, a free MPEG-2 video decoder * * mpeg2dec is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2, or (at your option) * any later version. * * mpeg2dec is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GNU Make; see the file COPYING. If not, write to * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. * * 15,24 bpp and dithering from Michael Niedermayer (michaelni@gmx.at) * MMX/MMX2 Template stuff from Michael Niedermayer (needed for fast movntq support) * context / deglobalize stuff by Michael Niedermayer */ #undef MOVNTQ #undef EMMS #undef SFENCE #ifdef HAVE_3DNOW /* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */ #define EMMS "femms" #else #define EMMS "emms" #endif #ifdef HAVE_MMX2 #define MOVNTQ "movntq" #define SFENCE "sfence" #else #define MOVNTQ "movq" #define SFENCE "/nop" #endif #define YUV2RGB \ /* Do the multiply part of the conversion for even and odd pixels, register usage: mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels, mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels, mm6 -> Y even, mm7 -> Y odd */\ /* convert the chroma part */\ "punpcklbw %%mm4, %%mm0;" /* scatter 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \ "punpcklbw %%mm4, %%mm1;" /* scatter 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \ \ "psllw $3, %%mm0;" /* Promote precision */ \ "psllw $3, %%mm1;" /* Promote precision */ \ \ "psubsw "U_OFFSET"(%4), %%mm0;" /* Cb -= 128 */ \ "psubsw "V_OFFSET"(%4), %%mm1;" /* Cr -= 128 */ \ \ "movq %%mm0, %%mm2;" /* Copy 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \ "movq %%mm1, %%mm3;" /* Copy 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \ \ "pmulhw "UG_COEFF"(%4), %%mm2;" /* Mul Cb with green coeff -> Cb green */ \ "pmulhw "VG_COEFF"(%4), %%mm3;" /* Mul Cr with green coeff -> Cr green */ \ \ "pmulhw "UB_COEFF"(%4), %%mm0;" /* Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 */\ "pmulhw "VR_COEFF"(%4), %%mm1;" /* Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 */\ \ "paddsw %%mm3, %%mm2;" /* Cb green + Cr green -> Cgreen */\ \ /* convert the luma part */\ "movq %%mm6, %%mm7;" /* Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\ "pand "MANGLE(mmx_00ffw)", %%mm6;" /* get Y even 00 Y6 00 Y4 00 Y2 00 Y0 */\ \ "psrlw $8, %%mm7;" /* get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 */\ \ "psllw $3, %%mm6;" /* Promote precision */\ "psllw $3, %%mm7;" /* Promote precision */\ \ "psubw "Y_OFFSET"(%4), %%mm6;" /* Y -= 16 */\ "psubw "Y_OFFSET"(%4), %%mm7;" /* Y -= 16 */\ \ "pmulhw "Y_COEFF"(%4), %%mm6;" /* Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 */\ "pmulhw "Y_COEFF"(%4), %%mm7;" /* Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 */\ \ /* Do the addition part of the conversion for even and odd pixels, register usage: mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels, mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels, mm6 -> Y even, mm7 -> Y odd */\ "movq %%mm0, %%mm3;" /* Copy Cblue */\ "movq %%mm1, %%mm4;" /* Copy Cred */\ "movq %%mm2, %%mm5;" /* Copy Cgreen */\ \ "paddsw %%mm6, %%mm0;" /* Y even + Cblue 00 B6 00 B4 00 B2 00 B0 */\ "paddsw %%mm7, %%mm3;" /* Y odd + Cblue 00 B7 00 B5 00 B3 00 B1 */\ \ "paddsw %%mm6, %%mm1;" /* Y even + Cred 00 R6 00 R4 00 R2 00 R0 */\ "paddsw %%mm7, %%mm4;" /* Y odd + Cred 00 R7 00 R5 00 R3 00 R1 */\ \ "paddsw %%mm6, %%mm2;" /* Y even + Cgreen 00 G6 00 G4 00 G2 00 G0 */\ "paddsw %%mm7, %%mm5;" /* Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1 */\ \ /* Limit RGB even to 0..255 */\ "packuswb %%mm0, %%mm0;" /* B6 B4 B2 B0 B6 B4 B2 B0 */\ "packuswb %%mm1, %%mm1;" /* R6 R4 R2 R0 R6 R4 R2 R0 */\ "packuswb %%mm2, %%mm2;" /* G6 G4 G2 G0 G6 G4 G2 G0 */\ \ /* Limit RGB odd to 0..255 */\ "packuswb %%mm3, %%mm3;" /* B7 B5 B3 B1 B7 B5 B3 B1 */\ "packuswb %%mm4, %%mm4;" /* R7 R5 R3 R1 R7 R5 R3 R1 */\ "packuswb %%mm5, %%mm5;" /* G7 G5 G3 G1 G7 G5 G3 G1 */\ \ /* Interleave RGB even and odd */\ "punpcklbw %%mm3, %%mm0;" /* B7 B6 B5 B4 B3 B2 B1 B0 */\ "punpcklbw %%mm4, %%mm1;" /* R7 R6 R5 R4 R3 R2 R1 R0 */\ "punpcklbw %%mm5, %%mm2;" /* G7 G6 G5 G4 G3 G2 G1 G0 */\ static inline int RENAME(yuv420_rgb16)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[]){ int y, h_size; if(c->srcFormat == IMGFMT_422P){ srcStride[1] *= 2; srcStride[2] *= 2; } h_size= (c->dstW+7)&~7; if(h_size*2 > dstStride[0]) h_size-=8; __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ ); //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], //srcStride[0],srcStride[1],srcStride[2],dstStride[0]); for (y= 0; y>1)*srcStride[1]; uint8_t *_pv = src[2] + (y>>1)*srcStride[2]; long index= -h_size/2; b5Dither= dither8[y&1]; g6Dither= dither4[y&1]; g5Dither= dither8[y&1]; r5Dither= dither8[(y+1)&1]; /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8 pixels in each iteration */ __asm__ __volatile__ ( /* load data for start of next scan line */ "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ "movq (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ // ".balign 16 \n\t" "1: \n\t" /* no speed diference on my p3@500 with prefetch, * if it is faster for anyone with -benchmark then tell me PREFETCH" 64(%0) \n\t" PREFETCH" 64(%1) \n\t" PREFETCH" 64(%2) \n\t" */ YUV2RGB #ifdef DITHER1XBPP "paddusb "MANGLE(b5Dither)", %%mm0;" "paddusb "MANGLE(g6Dither)", %%mm2;" "paddusb "MANGLE(r5Dither)", %%mm1;" #endif /* mask unneeded bits off */ "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */ "pand "MANGLE(mmx_grnmask)", %%mm2;" /* g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0 */ "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */ "psrlw $3,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */ "pxor %%mm4, %%mm4;" /* zero mm4 */ "movq %%mm0, %%mm5;" /* Copy B7-B0 */ "movq %%mm2, %%mm7;" /* Copy G7-G0 */ /* convert rgb24 plane to rgb16 pack for pixel 0-3 */ "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */ "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */ "psllw $3, %%mm2;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */ "por %%mm2, %%mm0;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */ "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ MOVNTQ " %%mm0, (%1);" /* store pixel 0-3 */ /* convert rgb24 plane to rgb16 pack for pixel 0-3 */ "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */ "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */ "psllw $3, %%mm7;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */ "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ "por %%mm7, %%mm5;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */ "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */ "add $16, %1 \n\t" "add $4, %0 \n\t" " js 1b \n\t" : "+r" (index), "+r" (_image) : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index) ); } __asm__ __volatile__ (EMMS); return srcSliceH; } static inline int RENAME(yuv420_rgb15)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[]){ int y, h_size; if(c->srcFormat == IMGFMT_422P){ srcStride[1] *= 2; srcStride[2] *= 2; } h_size= (c->dstW+7)&~7; if(h_size*2 > dstStride[0]) h_size-=8; __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ ); //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], //srcStride[0],srcStride[1],srcStride[2],dstStride[0]); for (y= 0; y>1)*srcStride[1]; uint8_t *_pv = src[2] + (y>>1)*srcStride[2]; long index= -h_size/2; b5Dither= dither8[y&1]; g6Dither= dither4[y&1]; g5Dither= dither8[y&1]; r5Dither= dither8[(y+1)&1]; /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8 pixels in each iteration */ __asm__ __volatile__ ( /* load data for start of next scan line */ "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ "movq (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ // ".balign 16 \n\t" "1: \n\t" YUV2RGB #ifdef DITHER1XBPP "paddusb "MANGLE(b5Dither)", %%mm0 \n\t" "paddusb "MANGLE(g5Dither)", %%mm2 \n\t" "paddusb "MANGLE(r5Dither)", %%mm1 \n\t" #endif /* mask unneeded bits off */ "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */ "pand "MANGLE(mmx_redmask)", %%mm2;" /* g7g6g5g4 g3_0_0_0 g7g6g5g4 g3_0_0_0 */ "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */ "psrlw $3,%%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */ "psrlw $1,%%mm1;" /* 0_r7r6r5 r4r3_0_0 0_r7r6r5 r4r3_0_0 */ "pxor %%mm4, %%mm4;" /* zero mm4 */ "movq %%mm0, %%mm5;" /* Copy B7-B0 */ "movq %%mm2, %%mm7;" /* Copy G7-G0 */ /* convert rgb24 plane to rgb16 pack for pixel 0-3 */ "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3_0_0_0 */ "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */ "psllw $2, %%mm2;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */ "por %%mm2, %%mm0;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */ "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ MOVNTQ " %%mm0, (%1);" /* store pixel 0-3 */ /* convert rgb24 plane to rgb16 pack for pixel 0-3 */ "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 0_g7g6g5 g4g3_0_0 */ "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */ "psllw $2, %%mm7;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */ "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ "por %%mm7, %%mm5;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */ "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */ "add $16, %1 \n\t" "add $4, %0 \n\t" " js 1b \n\t" : "+r" (index), "+r" (_image) : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index) ); } __asm__ __volatile__ (EMMS); return srcSliceH; } static inline int RENAME(yuv420_rgb24)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[]){ int y, h_size; if(c->srcFormat == IMGFMT_422P){ srcStride[1] *= 2; srcStride[2] *= 2; } h_size= (c->dstW+7)&~7; if(h_size*3 > dstStride[0]) h_size-=8; __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ ); for (y= 0; y>1)*srcStride[1]; uint8_t *_pv = src[2] + (y>>1)*srcStride[2]; long index= -h_size/2; /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8 pixels in each iteration */ __asm__ __volatile__ ( /* load data for start of next scan line */ "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ "movq (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ // ".balign 16 \n\t" "1: \n\t" YUV2RGB /* mm0=B, %%mm2=G, %%mm1=R */ #ifdef HAVE_MMX2 "movq "MANGLE(M24A)", %%mm4 \n\t" "movq "MANGLE(M24C)", %%mm7 \n\t" "pshufw $0x50, %%mm0, %%mm5 \n\t" /* B3 B2 B3 B2 B1 B0 B1 B0 */ "pshufw $0x50, %%mm2, %%mm3 \n\t" /* G3 G2 G3 G2 G1 G0 G1 G0 */ "pshufw $0x00, %%mm1, %%mm6 \n\t" /* R1 R0 R1 R0 R1 R0 R1 R0 */ "pand %%mm4, %%mm5 \n\t" /* B2 B1 B0 */ "pand %%mm4, %%mm3 \n\t" /* G2 G1 G0 */ "pand %%mm7, %%mm6 \n\t" /* R1 R0 */ "psllq $8, %%mm3 \n\t" /* G2 G1 G0 */ "por %%mm5, %%mm6 \n\t" "por %%mm3, %%mm6 \n\t" MOVNTQ" %%mm6, (%1) \n\t" "psrlq $8, %%mm2 \n\t" /* 00 G7 G6 G5 G4 G3 G2 G1 */ "pshufw $0xA5, %%mm0, %%mm5 \n\t" /* B5 B4 B5 B4 B3 B2 B3 B2 */ "pshufw $0x55, %%mm2, %%mm3 \n\t" /* G4 G3 G4 G3 G4 G3 G4 G3 */ "pshufw $0xA5, %%mm1, %%mm6 \n\t" /* R5 R4 R5 R4 R3 R2 R3 R2 */ "pand "MANGLE(M24B)", %%mm5 \n\t" /* B5 B4 B3 */ "pand %%mm7, %%mm3 \n\t" /* G4 G3 */ "pand %%mm4, %%mm6 \n\t" /* R4 R3 R2 */ "por %%mm5, %%mm3 \n\t" /* B5 G4 B4 G3 B3 */ "por %%mm3, %%mm6 \n\t" MOVNTQ" %%mm6, 8(%1) \n\t" "pshufw $0xFF, %%mm0, %%mm5 \n\t" /* B7 B6 B7 B6 B7 B6 B6 B7 */ "pshufw $0xFA, %%mm2, %%mm3 \n\t" /* 00 G7 00 G7 G6 G5 G6 G5 */ "pshufw $0xFA, %%mm1, %%mm6 \n\t" /* R7 R6 R7 R6 R5 R4 R5 R4 */ "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ "pand %%mm7, %%mm5 \n\t" /* B7 B6 */ "pand %%mm4, %%mm3 \n\t" /* G7 G6 G5 */ "pand "MANGLE(M24B)", %%mm6 \n\t" /* R7 R6 R5 */ "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ \ "por %%mm5, %%mm3 \n\t" "por %%mm3, %%mm6 \n\t" MOVNTQ" %%mm6, 16(%1) \n\t" "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ "pxor %%mm4, %%mm4 \n\t" #else "pxor %%mm4, %%mm4 \n\t" "movq %%mm0, %%mm5 \n\t" /* B */ "movq %%mm1, %%mm6 \n\t" /* R */ "punpcklbw %%mm2, %%mm0 \n\t" /* GBGBGBGB 0 */ "punpcklbw %%mm4, %%mm1 \n\t" /* 0R0R0R0R 0 */ "punpckhbw %%mm2, %%mm5 \n\t" /* GBGBGBGB 2 */ "punpckhbw %%mm4, %%mm6 \n\t" /* 0R0R0R0R 2 */ "movq %%mm0, %%mm7 \n\t" /* GBGBGBGB 0 */ "movq %%mm5, %%mm3 \n\t" /* GBGBGBGB 2 */ "punpcklwd %%mm1, %%mm7 \n\t" /* 0RGB0RGB 0 */ "punpckhwd %%mm1, %%mm0 \n\t" /* 0RGB0RGB 1 */ "punpcklwd %%mm6, %%mm5 \n\t" /* 0RGB0RGB 2 */ "punpckhwd %%mm6, %%mm3 \n\t" /* 0RGB0RGB 3 */ "movq %%mm7, %%mm2 \n\t" /* 0RGB0RGB 0 */ "movq %%mm0, %%mm6 \n\t" /* 0RGB0RGB 1 */ "movq %%mm5, %%mm1 \n\t" /* 0RGB0RGB 2 */ "movq %%mm3, %%mm4 \n\t" /* 0RGB0RGB 3 */ "psllq $40, %%mm7 \n\t" /* RGB00000 0 */ "psllq $40, %%mm0 \n\t" /* RGB00000 1 */ "psllq $40, %%mm5 \n\t" /* RGB00000 2 */ "psllq $40, %%mm3 \n\t" /* RGB00000 3 */ "punpckhdq %%mm2, %%mm7 \n\t" /* 0RGBRGB0 0 */ "punpckhdq %%mm6, %%mm0 \n\t" /* 0RGBRGB0 1 */ "punpckhdq %%mm1, %%mm5 \n\t" /* 0RGBRGB0 2 */ "punpckhdq %%mm4, %%mm3 \n\t" /* 0RGBRGB0 3 */ "psrlq $8, %%mm7 \n\t" /* 00RGBRGB 0 */ "movq %%mm0, %%mm6 \n\t" /* 0RGBRGB0 1 */ "psllq $40, %%mm0 \n\t" /* GB000000 1 */ "por %%mm0, %%mm7 \n\t" /* GBRGBRGB 0 */ MOVNTQ" %%mm7, (%1) \n\t" "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ "psrlq $24, %%mm6 \n\t" /* 0000RGBR 1 */ "movq %%mm5, %%mm1 \n\t" /* 0RGBRGB0 2 */ "psllq $24, %%mm5 \n\t" /* BRGB0000 2 */ "por %%mm5, %%mm6 \n\t" /* BRGBRGBR 1 */ MOVNTQ" %%mm6, 8(%1) \n\t" "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ "psrlq $40, %%mm1 \n\t" /* 000000RG 2 */ "psllq $8, %%mm3 \n\t" /* RGBRGB00 3 */ "por %%mm3, %%mm1 \n\t" /* RGBRGBRG 2 */ MOVNTQ" %%mm1, 16(%1) \n\t" "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ "pxor %%mm4, %%mm4 \n\t" #endif "add $24, %1 \n\t" "add $4, %0 \n\t" " js 1b \n\t" : "+r" (index), "+r" (_image) : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index) ); } __asm__ __volatile__ (EMMS); return srcSliceH; } static inline int RENAME(yuv420_rgb32)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[]){ int y, h_size; if(c->srcFormat == IMGFMT_422P){ srcStride[1] *= 2; srcStride[2] *= 2; } h_size= (c->dstW+7)&~7; if(h_size*4 > dstStride[0]) h_size-=8; __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ ); for (y= 0; y>1)*srcStride[1]; uint8_t *_pv = src[2] + (y>>1)*srcStride[2]; long index= -h_size/2; /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8 pixels in each iteration */ __asm__ __volatile__ ( /* load data for start of next scan line */ "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ "movq (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ // ".balign 16 \n\t" "1: \n\t" YUV2RGB /* convert RGB plane to RGB packed format, mm0 -> B, mm1 -> R, mm2 -> G, mm3 -> 0, mm4 -> GB, mm5 -> AR pixel 4-7, mm6 -> GB, mm7 -> AR pixel 0-3 */ "pxor %%mm3, %%mm3;" /* zero mm3 */ "movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */ "movq %%mm1, %%mm7;" /* R7 R6 R5 R4 R3 R2 R1 R0 */ "movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */ "movq %%mm1, %%mm5;" /* R7 R6 R5 R4 R3 R2 R1 R0 */ "punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */ "punpcklbw %%mm3, %%mm7;" /* 00 R3 00 R2 00 R1 00 R0 */ "punpcklwd %%mm7, %%mm6;" /* 00 R1 B1 G1 00 R0 B0 G0 */ MOVNTQ " %%mm6, (%1);" /* Store ARGB1 ARGB0 */ "movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */ "punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */ "punpckhwd %%mm7, %%mm6;" /* 00 R3 G3 B3 00 R2 B3 G2 */ MOVNTQ " %%mm6, 8 (%1);" /* Store ARGB3 ARGB2 */ "punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */ "punpckhbw %%mm3, %%mm5;" /* 00 R7 00 R6 00 R5 00 R4 */ "punpcklwd %%mm5, %%mm4;" /* 00 R5 B5 G5 00 R4 B4 G4 */ MOVNTQ " %%mm4, 16 (%1);" /* Store ARGB5 ARGB4 */ "movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */ "punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */ "punpckhwd %%mm5, %%mm4;" /* 00 R7 G7 B7 00 R6 B6 G6 */ MOVNTQ " %%mm4, 24 (%1);" /* Store ARGB7 ARGB6 */ "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */ "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */ "pxor %%mm4, %%mm4;" /* zero mm4 */ "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */ "add $32, %1 \n\t" "add $4, %0 \n\t" " js 1b \n\t" : "+r" (index), "+r" (_image) : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index) ); } __asm__ __volatile__ (EMMS); return srcSliceH; }