2 * yuv2rgb_mmx.c, Software YUV to RGB coverter with Intel MMX "technology"
4 * Copyright (C) 2000, Silicon Integrated System Corp.
7 * Author: Olie Lho <ollie@sis.com.tw>
9 * This file is part of mpeg2dec, a free MPEG-2 video decoder
11 * mpeg2dec is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2, or (at your option)
16 * mpeg2dec is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with mpeg2dec; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 * 15,24 bpp and dithering from Michael Niedermayer (michaelni@gmx.at)
26 * MMX/MMX2 Template stuff from Michael Niedermayer (needed for fast movntq support)
27 * context / deglobalize stuff by Michael Niedermayer
35 /* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */
42 #define MOVNTQ "movntq"
43 #define SFENCE "sfence"
50 /* Do the multiply part of the conversion for even and odd pixels,
52 mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,
53 mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,
54 mm6 -> Y even, mm7 -> Y odd */\
55 /* convert the chroma part */\
56 "punpcklbw %%mm4, %%mm0;" /* scatter 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \
57 "punpcklbw %%mm4, %%mm1;" /* scatter 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \
59 "psllw $3, %%mm0;" /* Promote precision */ \
60 "psllw $3, %%mm1;" /* Promote precision */ \
62 "psubsw "U_OFFSET"(%4), %%mm0;" /* Cb -= 128 */ \
63 "psubsw "V_OFFSET"(%4), %%mm1;" /* Cr -= 128 */ \
65 "movq %%mm0, %%mm2;" /* Copy 4 Cb 00 u3 00 u2 00 u1 00 u0 */ \
66 "movq %%mm1, %%mm3;" /* Copy 4 Cr 00 v3 00 v2 00 v1 00 v0 */ \
68 "pmulhw "UG_COEFF"(%4), %%mm2;" /* Mul Cb with green coeff -> Cb green */ \
69 "pmulhw "VG_COEFF"(%4), %%mm3;" /* Mul Cr with green coeff -> Cr green */ \
71 "pmulhw "UB_COEFF"(%4), %%mm0;" /* Mul Cb -> Cblue 00 b3 00 b2 00 b1 00 b0 */\
72 "pmulhw "VR_COEFF"(%4), %%mm1;" /* Mul Cr -> Cred 00 r3 00 r2 00 r1 00 r0 */\
74 "paddsw %%mm3, %%mm2;" /* Cb green + Cr green -> Cgreen */\
76 /* convert the luma part */\
77 "movq %%mm6, %%mm7;" /* Copy 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */\
78 "pand "MANGLE(mmx_00ffw)", %%mm6;" /* get Y even 00 Y6 00 Y4 00 Y2 00 Y0 */\
80 "psrlw $8, %%mm7;" /* get Y odd 00 Y7 00 Y5 00 Y3 00 Y1 */\
82 "psllw $3, %%mm6;" /* Promote precision */\
83 "psllw $3, %%mm7;" /* Promote precision */\
85 "psubw "Y_OFFSET"(%4), %%mm6;" /* Y -= 16 */\
86 "psubw "Y_OFFSET"(%4), %%mm7;" /* Y -= 16 */\
88 "pmulhw "Y_COEFF"(%4), %%mm6;" /* Mul 4 Y even 00 y6 00 y4 00 y2 00 y0 */\
89 "pmulhw "Y_COEFF"(%4), %%mm7;" /* Mul 4 Y odd 00 y7 00 y5 00 y3 00 y1 */\
91 /* Do the addition part of the conversion for even and odd pixels,
93 mm0 -> Cblue, mm1 -> Cred, mm2 -> Cgreen even pixels,
94 mm3 -> Cblue, mm4 -> Cred, mm5 -> Cgreen odd pixels,
95 mm6 -> Y even, mm7 -> Y odd */\
96 "movq %%mm0, %%mm3;" /* Copy Cblue */\
97 "movq %%mm1, %%mm4;" /* Copy Cred */\
98 "movq %%mm2, %%mm5;" /* Copy Cgreen */\
100 "paddsw %%mm6, %%mm0;" /* Y even + Cblue 00 B6 00 B4 00 B2 00 B0 */\
101 "paddsw %%mm7, %%mm3;" /* Y odd + Cblue 00 B7 00 B5 00 B3 00 B1 */\
103 "paddsw %%mm6, %%mm1;" /* Y even + Cred 00 R6 00 R4 00 R2 00 R0 */\
104 "paddsw %%mm7, %%mm4;" /* Y odd + Cred 00 R7 00 R5 00 R3 00 R1 */\
106 "paddsw %%mm6, %%mm2;" /* Y even + Cgreen 00 G6 00 G4 00 G2 00 G0 */\
107 "paddsw %%mm7, %%mm5;" /* Y odd + Cgreen 00 G7 00 G5 00 G3 00 G1 */\
109 /* Limit RGB even to 0..255 */\
110 "packuswb %%mm0, %%mm0;" /* B6 B4 B2 B0 B6 B4 B2 B0 */\
111 "packuswb %%mm1, %%mm1;" /* R6 R4 R2 R0 R6 R4 R2 R0 */\
112 "packuswb %%mm2, %%mm2;" /* G6 G4 G2 G0 G6 G4 G2 G0 */\
114 /* Limit RGB odd to 0..255 */\
115 "packuswb %%mm3, %%mm3;" /* B7 B5 B3 B1 B7 B5 B3 B1 */\
116 "packuswb %%mm4, %%mm4;" /* R7 R5 R3 R1 R7 R5 R3 R1 */\
117 "packuswb %%mm5, %%mm5;" /* G7 G5 G3 G1 G7 G5 G3 G1 */\
119 /* Interleave RGB even and odd */\
120 "punpcklbw %%mm3, %%mm0;" /* B7 B6 B5 B4 B3 B2 B1 B0 */\
121 "punpcklbw %%mm4, %%mm1;" /* R7 R6 R5 R4 R3 R2 R1 R0 */\
122 "punpcklbw %%mm5, %%mm2;" /* G7 G6 G5 G4 G3 G2 G1 G0 */\
125 static inline int RENAME(yuv420_rgb16)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
126 int srcSliceH, uint8_t* dst[], int dstStride[]){
129 if(c->srcFormat == PIX_FMT_YUV422P){
134 h_size= (c->dstW+7)&~7;
135 if(h_size*2 > FFABS(dstStride[0])) h_size-=8;
137 __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
138 //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],
139 //srcStride[0],srcStride[1],srcStride[2],dstStride[0]);
140 for (y= 0; y<srcSliceH; y++ ) {
141 uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
142 uint8_t *_py = src[0] + y*srcStride[0];
143 uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
144 uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
145 long index= -h_size/2;
147 b5Dither= dither8[y&1];
148 g6Dither= dither4[y&1];
149 g5Dither= dither8[y&1];
150 r5Dither= dither8[(y+1)&1];
151 /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
152 pixels in each iteration */
153 __asm__ __volatile__ (
154 /* load data for start of next scan line */
155 "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
156 "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
157 "movq (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
160 /* no speed diference on my p3@500 with prefetch,
161 * if it is faster for anyone with -benchmark then tell me
162 PREFETCH" 64(%0) \n\t"
163 PREFETCH" 64(%1) \n\t"
164 PREFETCH" 64(%2) \n\t"
169 "paddusb "MANGLE(b5Dither)", %%mm0;"
170 "paddusb "MANGLE(g6Dither)", %%mm2;"
171 "paddusb "MANGLE(r5Dither)", %%mm1;"
173 /* mask unneeded bits off */
174 "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
175 "pand "MANGLE(mmx_grnmask)", %%mm2;" /* g7g6g5g4 g3g2_0_0 g7g6g5g4 g3g2_0_0 */
176 "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
178 "psrlw $3, %%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
179 "pxor %%mm4, %%mm4;" /* zero mm4 */
181 "movq %%mm0, %%mm5;" /* Copy B7-B0 */
182 "movq %%mm2, %%mm7;" /* Copy G7-G0 */
184 /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
185 "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
186 "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
188 "psllw $3, %%mm2;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
189 "por %%mm2, %%mm0;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
191 "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
192 MOVNTQ " %%mm0, (%1);" /* store pixel 0-3 */
194 /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
195 "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3g2_0_0 */
196 "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
198 "psllw $3, %%mm7;" /* 0_0_0_0 0_g7g6g5 g4g3g2_0 0_0_0_0 */
199 "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
201 "por %%mm7, %%mm5;" /* r7r6r5r4 r3g7g6g5 g4g3g2b7 b6b5b4b3 */
202 "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
204 MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */
210 : "+r" (index), "+r" (_image)
211 : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
215 __asm__ __volatile__ (EMMS);
220 static inline int RENAME(yuv420_rgb15)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
221 int srcSliceH, uint8_t* dst[], int dstStride[]){
224 if(c->srcFormat == PIX_FMT_YUV422P){
229 h_size= (c->dstW+7)&~7;
230 if(h_size*2 > FFABS(dstStride[0])) h_size-=8;
232 __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
233 //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],
234 //srcStride[0],srcStride[1],srcStride[2],dstStride[0]);
235 for (y= 0; y<srcSliceH; y++ ) {
236 uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
237 uint8_t *_py = src[0] + y*srcStride[0];
238 uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
239 uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
240 long index= -h_size/2;
242 b5Dither= dither8[y&1];
243 g6Dither= dither4[y&1];
244 g5Dither= dither8[y&1];
245 r5Dither= dither8[(y+1)&1];
246 /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
247 pixels in each iteration */
248 __asm__ __volatile__ (
249 /* load data for start of next scan line */
250 "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
251 "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
252 "movq (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
258 "paddusb "MANGLE(b5Dither)", %%mm0 \n\t"
259 "paddusb "MANGLE(g5Dither)", %%mm2 \n\t"
260 "paddusb "MANGLE(r5Dither)", %%mm1 \n\t"
263 /* mask unneeded bits off */
264 "pand "MANGLE(mmx_redmask)", %%mm0;" /* b7b6b5b4 b3_0_0_0 b7b6b5b4 b3_0_0_0 */
265 "pand "MANGLE(mmx_redmask)", %%mm2;" /* g7g6g5g4 g3_0_0_0 g7g6g5g4 g3_0_0_0 */
266 "pand "MANGLE(mmx_redmask)", %%mm1;" /* r7r6r5r4 r3_0_0_0 r7r6r5r4 r3_0_0_0 */
268 "psrlw $3, %%mm0;" /* 0_0_0_b7 b6b5b4b3 0_0_0_b7 b6b5b4b3 */
269 "psrlw $1, %%mm1;" /* 0_r7r6r5 r4r3_0_0 0_r7r6r5 r4r3_0_0 */
270 "pxor %%mm4, %%mm4;" /* zero mm4 */
272 "movq %%mm0, %%mm5;" /* Copy B7-B0 */
273 "movq %%mm2, %%mm7;" /* Copy G7-G0 */
275 /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
276 "punpcklbw %%mm4, %%mm2;" /* 0_0_0_0 0_0_0_0 g7g6g5g4 g3_0_0_0 */
277 "punpcklbw %%mm1, %%mm0;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
279 "psllw $2, %%mm2;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
280 "por %%mm2, %%mm0;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
282 "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
283 MOVNTQ " %%mm0, (%1);" /* store pixel 0-3 */
285 /* convert rgb24 plane to rgb16 pack for pixel 0-3 */
286 "punpckhbw %%mm4, %%mm7;" /* 0_0_0_0 0_0_0_0 0_g7g6g5 g4g3_0_0 */
287 "punpckhbw %%mm1, %%mm5;" /* r7r6r5r4 r3_0_0_0 0_0_0_b7 b6b5b4b3 */
289 "psllw $2, %%mm7;" /* 0_0_0_0 0_0_g7g6 g5g4g3_0 0_0_0_0 */
290 "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
292 "por %%mm7, %%mm5;" /* 0_r7r6r5 r4r3g7g6 g5g4g3b7 b6b5b4b3 */
293 "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
295 MOVNTQ " %%mm5, 8 (%1);" /* store pixel 4-7 */
300 : "+r" (index), "+r" (_image)
301 : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
305 __asm__ __volatile__ (EMMS);
309 static inline int RENAME(yuv420_rgb24)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
310 int srcSliceH, uint8_t* dst[], int dstStride[]){
313 if(c->srcFormat == PIX_FMT_YUV422P){
318 h_size= (c->dstW+7)&~7;
319 if(h_size*3 > FFABS(dstStride[0])) h_size-=8;
321 __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
323 for (y= 0; y<srcSliceH; y++ ) {
324 uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
325 uint8_t *_py = src[0] + y*srcStride[0];
326 uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
327 uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
328 long index= -h_size/2;
330 /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
331 pixels in each iteration */
332 __asm__ __volatile__ (
333 /* load data for start of next scan line */
334 "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
335 "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
336 "movq (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
340 /* mm0=B, %%mm2=G, %%mm1=R */
342 "movq "MANGLE(M24A)", %%mm4 \n\t"
343 "movq "MANGLE(M24C)", %%mm7 \n\t"
344 "pshufw $0x50, %%mm0, %%mm5 \n\t" /* B3 B2 B3 B2 B1 B0 B1 B0 */
345 "pshufw $0x50, %%mm2, %%mm3 \n\t" /* G3 G2 G3 G2 G1 G0 G1 G0 */
346 "pshufw $0x00, %%mm1, %%mm6 \n\t" /* R1 R0 R1 R0 R1 R0 R1 R0 */
348 "pand %%mm4, %%mm5 \n\t" /* B2 B1 B0 */
349 "pand %%mm4, %%mm3 \n\t" /* G2 G1 G0 */
350 "pand %%mm7, %%mm6 \n\t" /* R1 R0 */
352 "psllq $8, %%mm3 \n\t" /* G2 G1 G0 */
353 "por %%mm5, %%mm6 \n\t"
354 "por %%mm3, %%mm6 \n\t"
355 MOVNTQ" %%mm6, (%1) \n\t"
357 "psrlq $8, %%mm2 \n\t" /* 00 G7 G6 G5 G4 G3 G2 G1 */
358 "pshufw $0xA5, %%mm0, %%mm5 \n\t" /* B5 B4 B5 B4 B3 B2 B3 B2 */
359 "pshufw $0x55, %%mm2, %%mm3 \n\t" /* G4 G3 G4 G3 G4 G3 G4 G3 */
360 "pshufw $0xA5, %%mm1, %%mm6 \n\t" /* R5 R4 R5 R4 R3 R2 R3 R2 */
362 "pand "MANGLE(M24B)", %%mm5 \n\t" /* B5 B4 B3 */
363 "pand %%mm7, %%mm3 \n\t" /* G4 G3 */
364 "pand %%mm4, %%mm6 \n\t" /* R4 R3 R2 */
366 "por %%mm5, %%mm3 \n\t" /* B5 G4 B4 G3 B3 */
367 "por %%mm3, %%mm6 \n\t"
368 MOVNTQ" %%mm6, 8(%1) \n\t"
370 "pshufw $0xFF, %%mm0, %%mm5 \n\t" /* B7 B6 B7 B6 B7 B6 B6 B7 */
371 "pshufw $0xFA, %%mm2, %%mm3 \n\t" /* 00 G7 00 G7 G6 G5 G6 G5 */
372 "pshufw $0xFA, %%mm1, %%mm6 \n\t" /* R7 R6 R7 R6 R5 R4 R5 R4 */
373 "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
375 "pand %%mm7, %%mm5 \n\t" /* B7 B6 */
376 "pand %%mm4, %%mm3 \n\t" /* G7 G6 G5 */
377 "pand "MANGLE(M24B)", %%mm6 \n\t" /* R7 R6 R5 */
378 "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
380 "por %%mm5, %%mm3 \n\t"
381 "por %%mm3, %%mm6 \n\t"
382 MOVNTQ" %%mm6, 16(%1) \n\t"
383 "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
384 "pxor %%mm4, %%mm4 \n\t"
388 "pxor %%mm4, %%mm4 \n\t"
389 "movq %%mm0, %%mm5 \n\t" /* B */
390 "movq %%mm1, %%mm6 \n\t" /* R */
391 "punpcklbw %%mm2, %%mm0 \n\t" /* GBGBGBGB 0 */
392 "punpcklbw %%mm4, %%mm1 \n\t" /* 0R0R0R0R 0 */
393 "punpckhbw %%mm2, %%mm5 \n\t" /* GBGBGBGB 2 */
394 "punpckhbw %%mm4, %%mm6 \n\t" /* 0R0R0R0R 2 */
395 "movq %%mm0, %%mm7 \n\t" /* GBGBGBGB 0 */
396 "movq %%mm5, %%mm3 \n\t" /* GBGBGBGB 2 */
397 "punpcklwd %%mm1, %%mm7 \n\t" /* 0RGB0RGB 0 */
398 "punpckhwd %%mm1, %%mm0 \n\t" /* 0RGB0RGB 1 */
399 "punpcklwd %%mm6, %%mm5 \n\t" /* 0RGB0RGB 2 */
400 "punpckhwd %%mm6, %%mm3 \n\t" /* 0RGB0RGB 3 */
402 "movq %%mm7, %%mm2 \n\t" /* 0RGB0RGB 0 */
403 "movq %%mm0, %%mm6 \n\t" /* 0RGB0RGB 1 */
404 "movq %%mm5, %%mm1 \n\t" /* 0RGB0RGB 2 */
405 "movq %%mm3, %%mm4 \n\t" /* 0RGB0RGB 3 */
407 "psllq $40, %%mm7 \n\t" /* RGB00000 0 */
408 "psllq $40, %%mm0 \n\t" /* RGB00000 1 */
409 "psllq $40, %%mm5 \n\t" /* RGB00000 2 */
410 "psllq $40, %%mm3 \n\t" /* RGB00000 3 */
412 "punpckhdq %%mm2, %%mm7 \n\t" /* 0RGBRGB0 0 */
413 "punpckhdq %%mm6, %%mm0 \n\t" /* 0RGBRGB0 1 */
414 "punpckhdq %%mm1, %%mm5 \n\t" /* 0RGBRGB0 2 */
415 "punpckhdq %%mm4, %%mm3 \n\t" /* 0RGBRGB0 3 */
417 "psrlq $8, %%mm7 \n\t" /* 00RGBRGB 0 */
418 "movq %%mm0, %%mm6 \n\t" /* 0RGBRGB0 1 */
419 "psllq $40, %%mm0 \n\t" /* GB000000 1 */
420 "por %%mm0, %%mm7 \n\t" /* GBRGBRGB 0 */
421 MOVNTQ" %%mm7, (%1) \n\t"
423 "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
425 "psrlq $24, %%mm6 \n\t" /* 0000RGBR 1 */
426 "movq %%mm5, %%mm1 \n\t" /* 0RGBRGB0 2 */
427 "psllq $24, %%mm5 \n\t" /* BRGB0000 2 */
428 "por %%mm5, %%mm6 \n\t" /* BRGBRGBR 1 */
429 MOVNTQ" %%mm6, 8(%1) \n\t"
431 "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
433 "psrlq $40, %%mm1 \n\t" /* 000000RG 2 */
434 "psllq $8, %%mm3 \n\t" /* RGBRGB00 3 */
435 "por %%mm3, %%mm1 \n\t" /* RGBRGBRG 2 */
436 MOVNTQ" %%mm1, 16(%1) \n\t"
438 "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
439 "pxor %%mm4, %%mm4 \n\t"
446 : "+r" (index), "+r" (_image)
447 : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
451 __asm__ __volatile__ (EMMS);
455 static inline int RENAME(yuv420_rgb32)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
456 int srcSliceH, uint8_t* dst[], int dstStride[]){
459 if(c->srcFormat == PIX_FMT_YUV422P){
464 h_size= (c->dstW+7)&~7;
465 if(h_size*4 > FFABS(dstStride[0])) h_size-=8;
467 __asm__ __volatile__ ("pxor %mm4, %mm4;" /* zero mm4 */ );
469 for (y= 0; y<srcSliceH; y++ ) {
470 uint8_t *_image = dst[0] + (y+srcSliceY)*dstStride[0];
471 uint8_t *_py = src[0] + y*srcStride[0];
472 uint8_t *_pu = src[1] + (y>>1)*srcStride[1];
473 uint8_t *_pv = src[2] + (y>>1)*srcStride[2];
474 long index= -h_size/2;
476 /* this mmx assembly code deals with SINGLE scan line at a time, it convert 8
477 pixels in each iteration */
478 __asm__ __volatile__ (
479 /* load data for start of next scan line */
480 "movd (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
481 "movd (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
482 "movq (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
486 /* convert RGB plane to RGB packed format,
487 mm0 -> B, mm1 -> R, mm2 -> G, mm3 -> 0,
488 mm4 -> GB, mm5 -> AR pixel 4-7,
489 mm6 -> GB, mm7 -> AR pixel 0-3 */
490 "pxor %%mm3, %%mm3;" /* zero mm3 */
492 "movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
493 "movq %%mm1, %%mm7;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
495 "movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
496 "movq %%mm1, %%mm5;" /* R7 R6 R5 R4 R3 R2 R1 R0 */
498 "punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */
499 "punpcklbw %%mm3, %%mm7;" /* 00 R3 00 R2 00 R1 00 R0 */
501 "punpcklwd %%mm7, %%mm6;" /* 00 R1 B1 G1 00 R0 B0 G0 */
502 MOVNTQ " %%mm6, (%1);" /* Store ARGB1 ARGB0 */
504 "movq %%mm0, %%mm6;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
505 "punpcklbw %%mm2, %%mm6;" /* G3 B3 G2 B2 G1 B1 G0 B0 */
507 "punpckhwd %%mm7, %%mm6;" /* 00 R3 G3 B3 00 R2 B3 G2 */
508 MOVNTQ " %%mm6, 8 (%1);" /* Store ARGB3 ARGB2 */
510 "punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */
511 "punpckhbw %%mm3, %%mm5;" /* 00 R7 00 R6 00 R5 00 R4 */
513 "punpcklwd %%mm5, %%mm4;" /* 00 R5 B5 G5 00 R4 B4 G4 */
514 MOVNTQ " %%mm4, 16 (%1);" /* Store ARGB5 ARGB4 */
516 "movq %%mm0, %%mm4;" /* B7 B6 B5 B4 B3 B2 B1 B0 */
517 "punpckhbw %%mm2, %%mm4;" /* G7 B7 G6 B6 G5 B5 G4 B4 */
519 "punpckhwd %%mm5, %%mm4;" /* 00 R7 G7 B7 00 R6 B6 G6 */
520 MOVNTQ " %%mm4, 24 (%1);" /* Store ARGB7 ARGB6 */
522 "movd 4 (%2, %0), %%mm0;" /* Load 4 Cb 00 00 00 00 u3 u2 u1 u0 */
523 "movd 4 (%3, %0), %%mm1;" /* Load 4 Cr 00 00 00 00 v3 v2 v1 v0 */
525 "pxor %%mm4, %%mm4;" /* zero mm4 */
526 "movq 8 (%5, %0, 2), %%mm6;" /* Load 8 Y Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 */
532 : "+r" (index), "+r" (_image)
533 : "r" (_pu - index), "r" (_pv - index), "r"(&c->redDither), "r" (_py - 2*index)
537 __asm__ __volatile__ (EMMS);