a5bd2f5e4627aec037b9c32a94ef1dfbe1ca2acf
[ffmpeg.git] / libswscale / swscale_template.c
1 /*
2  * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  *
20  * The C code (not assembly, MMX, ...) of this file can be used
21  * under the LGPL license.
22  */
23
24 #undef REAL_MOVNTQ
25 #undef MOVNTQ
26 #undef PAVGB
27 #undef PREFETCH
28 #undef PREFETCHW
29
30 #if HAVE_AMD3DNOW
31 #define PREFETCH  "prefetch"
32 #define PREFETCHW "prefetchw"
33 #elif HAVE_MMX2
34 #define PREFETCH "prefetchnta"
35 #define PREFETCHW "prefetcht0"
36 #else
37 #define PREFETCH  " # nop"
38 #define PREFETCHW " # nop"
39 #endif
40
41 #if HAVE_MMX2
42 #define PAVGB(a,b) "pavgb " #a ", " #b " \n\t"
43 #elif HAVE_AMD3DNOW
44 #define PAVGB(a,b) "pavgusb " #a ", " #b " \n\t"
45 #endif
46
47 #if HAVE_MMX2
48 #define REAL_MOVNTQ(a,b) "movntq " #a ", " #b " \n\t"
49 #else
50 #define REAL_MOVNTQ(a,b) "movq " #a ", " #b " \n\t"
51 #endif
52 #define MOVNTQ(a,b)  REAL_MOVNTQ(a,b)
53
54 #if HAVE_ALTIVEC
55 #include "ppc/swscale_altivec_template.c"
56 #endif
57
58 #define YSCALEYUV2YV12X(x, offset, dest, width) \
59     __asm__ volatile(\
60     "xor                          %%"REG_a", %%"REG_a"  \n\t"\
61     "movq             "VROUNDER_OFFSET"(%0), %%mm3      \n\t"\
62     "movq                             %%mm3, %%mm4      \n\t"\
63     "lea                     " offset "(%0), %%"REG_d"  \n\t"\
64     "mov                        (%%"REG_d"), %%"REG_S"  \n\t"\
65     ASMALIGN(4) /* FIXME Unroll? */\
66     "1:                                                 \n\t"\
67     "movq                      8(%%"REG_d"), %%mm0      \n\t" /* filterCoeff */\
68     "movq   "  x "(%%"REG_S", %%"REG_a", 2), %%mm2      \n\t" /* srcData */\
69     "movq 8+"  x "(%%"REG_S", %%"REG_a", 2), %%mm5      \n\t" /* srcData */\
70     "add                                $16, %%"REG_d"  \n\t"\
71     "mov                        (%%"REG_d"), %%"REG_S"  \n\t"\
72     "test                         %%"REG_S", %%"REG_S"  \n\t"\
73     "pmulhw                           %%mm0, %%mm2      \n\t"\
74     "pmulhw                           %%mm0, %%mm5      \n\t"\
75     "paddw                            %%mm2, %%mm3      \n\t"\
76     "paddw                            %%mm5, %%mm4      \n\t"\
77     " jnz                                1b             \n\t"\
78     "psraw                               $3, %%mm3      \n\t"\
79     "psraw                               $3, %%mm4      \n\t"\
80     "packuswb                         %%mm4, %%mm3      \n\t"\
81     MOVNTQ(%%mm3, (%1, %%REGa))\
82     "add                                 $8, %%"REG_a"  \n\t"\
83     "cmp                                 %2, %%"REG_a"  \n\t"\
84     "movq             "VROUNDER_OFFSET"(%0), %%mm3      \n\t"\
85     "movq                             %%mm3, %%mm4      \n\t"\
86     "lea                     " offset "(%0), %%"REG_d"  \n\t"\
87     "mov                        (%%"REG_d"), %%"REG_S"  \n\t"\
88     "jb                                  1b             \n\t"\
89     :: "r" (&c->redDither),\
90     "r" (dest), "g" (width)\
91     : "%"REG_a, "%"REG_d, "%"REG_S\
92     );
93
94 #define YSCALEYUV2YV12X_ACCURATE(x, offset, dest, width) \
95     __asm__ volatile(\
96     "lea                     " offset "(%0), %%"REG_d"  \n\t"\
97     "xor                          %%"REG_a", %%"REG_a"  \n\t"\
98     "pxor                             %%mm4, %%mm4      \n\t"\
99     "pxor                             %%mm5, %%mm5      \n\t"\
100     "pxor                             %%mm6, %%mm6      \n\t"\
101     "pxor                             %%mm7, %%mm7      \n\t"\
102     "mov                        (%%"REG_d"), %%"REG_S"  \n\t"\
103     ASMALIGN(4) \
104     "1:                                                 \n\t"\
105     "movq   "  x "(%%"REG_S", %%"REG_a", 2), %%mm0      \n\t" /* srcData */\
106     "movq 8+"  x "(%%"REG_S", %%"REG_a", 2), %%mm2      \n\t" /* srcData */\
107     "mov        "STR(APCK_PTR2)"(%%"REG_d"), %%"REG_S"  \n\t"\
108     "movq   "  x "(%%"REG_S", %%"REG_a", 2), %%mm1      \n\t" /* srcData */\
109     "movq                             %%mm0, %%mm3      \n\t"\
110     "punpcklwd                        %%mm1, %%mm0      \n\t"\
111     "punpckhwd                        %%mm1, %%mm3      \n\t"\
112     "movq       "STR(APCK_COEF)"(%%"REG_d"), %%mm1      \n\t" /* filterCoeff */\
113     "pmaddwd                          %%mm1, %%mm0      \n\t"\
114     "pmaddwd                          %%mm1, %%mm3      \n\t"\
115     "paddd                            %%mm0, %%mm4      \n\t"\
116     "paddd                            %%mm3, %%mm5      \n\t"\
117     "movq 8+"  x "(%%"REG_S", %%"REG_a", 2), %%mm3      \n\t" /* srcData */\
118     "mov        "STR(APCK_SIZE)"(%%"REG_d"), %%"REG_S"  \n\t"\
119     "add                  $"STR(APCK_SIZE)", %%"REG_d"  \n\t"\
120     "test                         %%"REG_S", %%"REG_S"  \n\t"\
121     "movq                             %%mm2, %%mm0      \n\t"\
122     "punpcklwd                        %%mm3, %%mm2      \n\t"\
123     "punpckhwd                        %%mm3, %%mm0      \n\t"\
124     "pmaddwd                          %%mm1, %%mm2      \n\t"\
125     "pmaddwd                          %%mm1, %%mm0      \n\t"\
126     "paddd                            %%mm2, %%mm6      \n\t"\
127     "paddd                            %%mm0, %%mm7      \n\t"\
128     " jnz                                1b             \n\t"\
129     "psrad                              $16, %%mm4      \n\t"\
130     "psrad                              $16, %%mm5      \n\t"\
131     "psrad                              $16, %%mm6      \n\t"\
132     "psrad                              $16, %%mm7      \n\t"\
133     "movq             "VROUNDER_OFFSET"(%0), %%mm0      \n\t"\
134     "packssdw                         %%mm5, %%mm4      \n\t"\
135     "packssdw                         %%mm7, %%mm6      \n\t"\
136     "paddw                            %%mm0, %%mm4      \n\t"\
137     "paddw                            %%mm0, %%mm6      \n\t"\
138     "psraw                               $3, %%mm4      \n\t"\
139     "psraw                               $3, %%mm6      \n\t"\
140     "packuswb                         %%mm6, %%mm4      \n\t"\
141     MOVNTQ(%%mm4, (%1, %%REGa))\
142     "add                                 $8, %%"REG_a"  \n\t"\
143     "cmp                                 %2, %%"REG_a"  \n\t"\
144     "lea                     " offset "(%0), %%"REG_d"  \n\t"\
145     "pxor                             %%mm4, %%mm4      \n\t"\
146     "pxor                             %%mm5, %%mm5      \n\t"\
147     "pxor                             %%mm6, %%mm6      \n\t"\
148     "pxor                             %%mm7, %%mm7      \n\t"\
149     "mov                        (%%"REG_d"), %%"REG_S"  \n\t"\
150     "jb                                  1b             \n\t"\
151     :: "r" (&c->redDither),\
152     "r" (dest), "g" (width)\
153     : "%"REG_a, "%"REG_d, "%"REG_S\
154     );
155
156 #define YSCALEYUV2YV121 \
157     "mov %2, %%"REG_a"                    \n\t"\
158     ASMALIGN(4) /* FIXME Unroll? */\
159     "1:                                   \n\t"\
160     "movq  (%0, %%"REG_a", 2), %%mm0      \n\t"\
161     "movq 8(%0, %%"REG_a", 2), %%mm1      \n\t"\
162     "psraw                 $7, %%mm0      \n\t"\
163     "psraw                 $7, %%mm1      \n\t"\
164     "packuswb           %%mm1, %%mm0      \n\t"\
165     MOVNTQ(%%mm0, (%1, %%REGa))\
166     "add                   $8, %%"REG_a"  \n\t"\
167     "jnc                   1b             \n\t"
168
169 #define YSCALEYUV2YV121_ACCURATE \
170     "mov %2, %%"REG_a"                    \n\t"\
171     "pcmpeqw %%mm7, %%mm7                 \n\t"\
172     "psrlw                 $15, %%mm7     \n\t"\
173     "psllw                  $6, %%mm7     \n\t"\
174     ASMALIGN(4) /* FIXME Unroll? */\
175     "1:                                   \n\t"\
176     "movq  (%0, %%"REG_a", 2), %%mm0      \n\t"\
177     "movq 8(%0, %%"REG_a", 2), %%mm1      \n\t"\
178     "paddsw             %%mm7, %%mm0      \n\t"\
179     "paddsw             %%mm7, %%mm1      \n\t"\
180     "psraw                 $7, %%mm0      \n\t"\
181     "psraw                 $7, %%mm1      \n\t"\
182     "packuswb           %%mm1, %%mm0      \n\t"\
183     MOVNTQ(%%mm0, (%1, %%REGa))\
184     "add                   $8, %%"REG_a"  \n\t"\
185     "jnc                   1b             \n\t"
186
187 /*
188     :: "m" (-lumFilterSize), "m" (-chrFilterSize),
189        "m" (lumMmxFilter+lumFilterSize*4), "m" (chrMmxFilter+chrFilterSize*4),
190        "r" (dest), "m" (dstW),
191        "m" (lumSrc+lumFilterSize), "m" (chrSrc+chrFilterSize)
192     : "%eax", "%ebx", "%ecx", "%edx", "%esi"
193 */
194 #define YSCALEYUV2PACKEDX_UV \
195     __asm__ volatile(\
196     "xor                   %%"REG_a", %%"REG_a"     \n\t"\
197     ASMALIGN(4)\
198     "nop                                            \n\t"\
199     "1:                                             \n\t"\
200     "lea "CHR_MMX_FILTER_OFFSET"(%0), %%"REG_d"     \n\t"\
201     "mov                 (%%"REG_d"), %%"REG_S"     \n\t"\
202     "movq      "VROUNDER_OFFSET"(%0), %%mm3         \n\t"\
203     "movq                      %%mm3, %%mm4         \n\t"\
204     ASMALIGN(4)\
205     "2:                                             \n\t"\
206     "movq               8(%%"REG_d"), %%mm0         \n\t" /* filterCoeff */\
207     "movq     (%%"REG_S", %%"REG_a"), %%mm2         \n\t" /* UsrcData */\
208     "movq "AV_STRINGIFY(VOF)"(%%"REG_S", %%"REG_a"), %%mm5         \n\t" /* VsrcData */\
209     "add                         $16, %%"REG_d"     \n\t"\
210     "mov                 (%%"REG_d"), %%"REG_S"     \n\t"\
211     "pmulhw                    %%mm0, %%mm2         \n\t"\
212     "pmulhw                    %%mm0, %%mm5         \n\t"\
213     "paddw                     %%mm2, %%mm3         \n\t"\
214     "paddw                     %%mm5, %%mm4         \n\t"\
215     "test                  %%"REG_S", %%"REG_S"     \n\t"\
216     " jnz                         2b                \n\t"\
217
218 #define YSCALEYUV2PACKEDX_YA(offset,coeff,src1,src2,dst1,dst2) \
219     "lea                "offset"(%0), %%"REG_d"     \n\t"\
220     "mov                 (%%"REG_d"), %%"REG_S"     \n\t"\
221     "movq      "VROUNDER_OFFSET"(%0), "#dst1"       \n\t"\
222     "movq                    "#dst1", "#dst2"       \n\t"\
223     ASMALIGN(4)\
224     "2:                                             \n\t"\
225     "movq               8(%%"REG_d"), "#coeff"      \n\t" /* filterCoeff */\
226     "movq  (%%"REG_S", %%"REG_a", 2), "#src1"       \n\t" /* Y1srcData */\
227     "movq 8(%%"REG_S", %%"REG_a", 2), "#src2"       \n\t" /* Y2srcData */\
228     "add                         $16, %%"REG_d"            \n\t"\
229     "mov                 (%%"REG_d"), %%"REG_S"     \n\t"\
230     "pmulhw                 "#coeff", "#src1"       \n\t"\
231     "pmulhw                 "#coeff", "#src2"       \n\t"\
232     "paddw                   "#src1", "#dst1"       \n\t"\
233     "paddw                   "#src2", "#dst2"       \n\t"\
234     "test                  %%"REG_S", %%"REG_S"     \n\t"\
235     " jnz                         2b                \n\t"\
236
237 #define YSCALEYUV2PACKEDX \
238     YSCALEYUV2PACKEDX_UV \
239     YSCALEYUV2PACKEDX_YA(LUM_MMX_FILTER_OFFSET,%%mm0,%%mm2,%%mm5,%%mm1,%%mm7) \
240
241 #define YSCALEYUV2PACKEDX_END                 \
242     :: "r" (&c->redDither),                   \
243         "m" (dummy), "m" (dummy), "m" (dummy),\
244         "r" (dest), "m" (dstW)                \
245     : "%"REG_a, "%"REG_d, "%"REG_S            \
246     );
247
248 #define YSCALEYUV2PACKEDX_ACCURATE_UV \
249     __asm__ volatile(\
250     "xor %%"REG_a", %%"REG_a"                       \n\t"\
251     ASMALIGN(4)\
252     "nop                                            \n\t"\
253     "1:                                             \n\t"\
254     "lea "CHR_MMX_FILTER_OFFSET"(%0), %%"REG_d"     \n\t"\
255     "mov                 (%%"REG_d"), %%"REG_S"     \n\t"\
256     "pxor                      %%mm4, %%mm4         \n\t"\
257     "pxor                      %%mm5, %%mm5         \n\t"\
258     "pxor                      %%mm6, %%mm6         \n\t"\
259     "pxor                      %%mm7, %%mm7         \n\t"\
260     ASMALIGN(4)\
261     "2:                                             \n\t"\
262     "movq     (%%"REG_S", %%"REG_a"), %%mm0         \n\t" /* UsrcData */\
263     "movq "AV_STRINGIFY(VOF)"(%%"REG_S", %%"REG_a"), %%mm2         \n\t" /* VsrcData */\
264     "mov "STR(APCK_PTR2)"(%%"REG_d"), %%"REG_S"     \n\t"\
265     "movq     (%%"REG_S", %%"REG_a"), %%mm1         \n\t" /* UsrcData */\
266     "movq                      %%mm0, %%mm3         \n\t"\
267     "punpcklwd                 %%mm1, %%mm0         \n\t"\
268     "punpckhwd                 %%mm1, %%mm3         \n\t"\
269     "movq "STR(APCK_COEF)"(%%"REG_d"),%%mm1         \n\t" /* filterCoeff */\
270     "pmaddwd                   %%mm1, %%mm0         \n\t"\
271     "pmaddwd                   %%mm1, %%mm3         \n\t"\
272     "paddd                     %%mm0, %%mm4         \n\t"\
273     "paddd                     %%mm3, %%mm5         \n\t"\
274     "movq "AV_STRINGIFY(VOF)"(%%"REG_S", %%"REG_a"), %%mm3         \n\t" /* VsrcData */\
275     "mov "STR(APCK_SIZE)"(%%"REG_d"), %%"REG_S"     \n\t"\
276     "add           $"STR(APCK_SIZE)", %%"REG_d"     \n\t"\
277     "test                  %%"REG_S", %%"REG_S"     \n\t"\
278     "movq                      %%mm2, %%mm0         \n\t"\
279     "punpcklwd                 %%mm3, %%mm2         \n\t"\
280     "punpckhwd                 %%mm3, %%mm0         \n\t"\
281     "pmaddwd                   %%mm1, %%mm2         \n\t"\
282     "pmaddwd                   %%mm1, %%mm0         \n\t"\
283     "paddd                     %%mm2, %%mm6         \n\t"\
284     "paddd                     %%mm0, %%mm7         \n\t"\
285     " jnz                         2b                \n\t"\
286     "psrad                       $16, %%mm4         \n\t"\
287     "psrad                       $16, %%mm5         \n\t"\
288     "psrad                       $16, %%mm6         \n\t"\
289     "psrad                       $16, %%mm7         \n\t"\
290     "movq      "VROUNDER_OFFSET"(%0), %%mm0         \n\t"\
291     "packssdw                  %%mm5, %%mm4         \n\t"\
292     "packssdw                  %%mm7, %%mm6         \n\t"\
293     "paddw                     %%mm0, %%mm4         \n\t"\
294     "paddw                     %%mm0, %%mm6         \n\t"\
295     "movq                      %%mm4, "U_TEMP"(%0)  \n\t"\
296     "movq                      %%mm6, "V_TEMP"(%0)  \n\t"\
297
298 #define YSCALEYUV2PACKEDX_ACCURATE_YA(offset) \
299     "lea                "offset"(%0), %%"REG_d"     \n\t"\
300     "mov                 (%%"REG_d"), %%"REG_S"     \n\t"\
301     "pxor                      %%mm1, %%mm1         \n\t"\
302     "pxor                      %%mm5, %%mm5         \n\t"\
303     "pxor                      %%mm7, %%mm7         \n\t"\
304     "pxor                      %%mm6, %%mm6         \n\t"\
305     ASMALIGN(4)\
306     "2:                                             \n\t"\
307     "movq  (%%"REG_S", %%"REG_a", 2), %%mm0         \n\t" /* Y1srcData */\
308     "movq 8(%%"REG_S", %%"REG_a", 2), %%mm2         \n\t" /* Y2srcData */\
309     "mov "STR(APCK_PTR2)"(%%"REG_d"), %%"REG_S"     \n\t"\
310     "movq  (%%"REG_S", %%"REG_a", 2), %%mm4         \n\t" /* Y1srcData */\
311     "movq                      %%mm0, %%mm3         \n\t"\
312     "punpcklwd                 %%mm4, %%mm0         \n\t"\
313     "punpckhwd                 %%mm4, %%mm3         \n\t"\
314     "movq "STR(APCK_COEF)"(%%"REG_d"), %%mm4         \n\t" /* filterCoeff */\
315     "pmaddwd                   %%mm4, %%mm0         \n\t"\
316     "pmaddwd                   %%mm4, %%mm3         \n\t"\
317     "paddd                     %%mm0, %%mm1         \n\t"\
318     "paddd                     %%mm3, %%mm5         \n\t"\
319     "movq 8(%%"REG_S", %%"REG_a", 2), %%mm3         \n\t" /* Y2srcData */\
320     "mov "STR(APCK_SIZE)"(%%"REG_d"), %%"REG_S"     \n\t"\
321     "add           $"STR(APCK_SIZE)", %%"REG_d"     \n\t"\
322     "test                  %%"REG_S", %%"REG_S"     \n\t"\
323     "movq                      %%mm2, %%mm0         \n\t"\
324     "punpcklwd                 %%mm3, %%mm2         \n\t"\
325     "punpckhwd                 %%mm3, %%mm0         \n\t"\
326     "pmaddwd                   %%mm4, %%mm2         \n\t"\
327     "pmaddwd                   %%mm4, %%mm0         \n\t"\
328     "paddd                     %%mm2, %%mm7         \n\t"\
329     "paddd                     %%mm0, %%mm6         \n\t"\
330     " jnz                         2b                \n\t"\
331     "psrad                       $16, %%mm1         \n\t"\
332     "psrad                       $16, %%mm5         \n\t"\
333     "psrad                       $16, %%mm7         \n\t"\
334     "psrad                       $16, %%mm6         \n\t"\
335     "movq      "VROUNDER_OFFSET"(%0), %%mm0         \n\t"\
336     "packssdw                  %%mm5, %%mm1         \n\t"\
337     "packssdw                  %%mm6, %%mm7         \n\t"\
338     "paddw                     %%mm0, %%mm1         \n\t"\
339     "paddw                     %%mm0, %%mm7         \n\t"\
340     "movq               "U_TEMP"(%0), %%mm3         \n\t"\
341     "movq               "V_TEMP"(%0), %%mm4         \n\t"\
342
343 #define YSCALEYUV2PACKEDX_ACCURATE \
344     YSCALEYUV2PACKEDX_ACCURATE_UV \
345     YSCALEYUV2PACKEDX_ACCURATE_YA(LUM_MMX_FILTER_OFFSET)
346
347 #define YSCALEYUV2RGBX \
348     "psubw  "U_OFFSET"(%0), %%mm3       \n\t" /* (U-128)8*/\
349     "psubw  "V_OFFSET"(%0), %%mm4       \n\t" /* (V-128)8*/\
350     "movq            %%mm3, %%mm2       \n\t" /* (U-128)8*/\
351     "movq            %%mm4, %%mm5       \n\t" /* (V-128)8*/\
352     "pmulhw "UG_COEFF"(%0), %%mm3       \n\t"\
353     "pmulhw "VG_COEFF"(%0), %%mm4       \n\t"\
354 /* mm2=(U-128)8, mm3=ug, mm4=vg mm5=(V-128)8 */\
355     "pmulhw "UB_COEFF"(%0), %%mm2       \n\t"\
356     "pmulhw "VR_COEFF"(%0), %%mm5       \n\t"\
357     "psubw  "Y_OFFSET"(%0), %%mm1       \n\t" /* 8(Y-16)*/\
358     "psubw  "Y_OFFSET"(%0), %%mm7       \n\t" /* 8(Y-16)*/\
359     "pmulhw  "Y_COEFF"(%0), %%mm1       \n\t"\
360     "pmulhw  "Y_COEFF"(%0), %%mm7       \n\t"\
361 /* mm1= Y1, mm2=ub, mm3=ug, mm4=vg mm5=vr, mm7=Y2 */\
362     "paddw           %%mm3, %%mm4       \n\t"\
363     "movq            %%mm2, %%mm0       \n\t"\
364     "movq            %%mm5, %%mm6       \n\t"\
365     "movq            %%mm4, %%mm3       \n\t"\
366     "punpcklwd       %%mm2, %%mm2       \n\t"\
367     "punpcklwd       %%mm5, %%mm5       \n\t"\
368     "punpcklwd       %%mm4, %%mm4       \n\t"\
369     "paddw           %%mm1, %%mm2       \n\t"\
370     "paddw           %%mm1, %%mm5       \n\t"\
371     "paddw           %%mm1, %%mm4       \n\t"\
372     "punpckhwd       %%mm0, %%mm0       \n\t"\
373     "punpckhwd       %%mm6, %%mm6       \n\t"\
374     "punpckhwd       %%mm3, %%mm3       \n\t"\
375     "paddw           %%mm7, %%mm0       \n\t"\
376     "paddw           %%mm7, %%mm6       \n\t"\
377     "paddw           %%mm7, %%mm3       \n\t"\
378     /* mm0=B1, mm2=B2, mm3=G2, mm4=G1, mm5=R1, mm6=R2 */\
379     "packuswb        %%mm0, %%mm2       \n\t"\
380     "packuswb        %%mm6, %%mm5       \n\t"\
381     "packuswb        %%mm3, %%mm4       \n\t"\
382
383 #define REAL_YSCALEYUV2PACKED(index, c) \
384     "movq "CHR_MMX_FILTER_OFFSET"+8("#c"), %%mm0              \n\t"\
385     "movq "LUM_MMX_FILTER_OFFSET"+8("#c"), %%mm1              \n\t"\
386     "psraw                $3, %%mm0                           \n\t"\
387     "psraw                $3, %%mm1                           \n\t"\
388     "movq              %%mm0, "CHR_MMX_FILTER_OFFSET"+8("#c") \n\t"\
389     "movq              %%mm1, "LUM_MMX_FILTER_OFFSET"+8("#c") \n\t"\
390     "xor            "#index", "#index"                        \n\t"\
391     ASMALIGN(4)\
392     "1:                                 \n\t"\
393     "movq     (%2, "#index"), %%mm2     \n\t" /* uvbuf0[eax]*/\
394     "movq     (%3, "#index"), %%mm3     \n\t" /* uvbuf1[eax]*/\
395     "movq "AV_STRINGIFY(VOF)"(%2, "#index"), %%mm5     \n\t" /* uvbuf0[eax+2048]*/\
396     "movq "AV_STRINGIFY(VOF)"(%3, "#index"), %%mm4     \n\t" /* uvbuf1[eax+2048]*/\
397     "psubw             %%mm3, %%mm2     \n\t" /* uvbuf0[eax] - uvbuf1[eax]*/\
398     "psubw             %%mm4, %%mm5     \n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048]*/\
399     "movq "CHR_MMX_FILTER_OFFSET"+8("#c"), %%mm0    \n\t"\
400     "pmulhw            %%mm0, %%mm2     \n\t" /* (uvbuf0[eax] - uvbuf1[eax])uvalpha1>>16*/\
401     "pmulhw            %%mm0, %%mm5     \n\t" /* (uvbuf0[eax+2048] - uvbuf1[eax+2048])uvalpha1>>16*/\
402     "psraw                $7, %%mm3     \n\t" /* uvbuf0[eax] - uvbuf1[eax] >>4*/\
403     "psraw                $7, %%mm4     \n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048] >>4*/\
404     "paddw             %%mm2, %%mm3     \n\t" /* uvbuf0[eax]uvalpha1 - uvbuf1[eax](1-uvalpha1)*/\
405     "paddw             %%mm5, %%mm4     \n\t" /* uvbuf0[eax+2048]uvalpha1 - uvbuf1[eax+2048](1-uvalpha1)*/\
406     "movq  (%0, "#index", 2), %%mm0     \n\t" /*buf0[eax]*/\
407     "movq  (%1, "#index", 2), %%mm1     \n\t" /*buf1[eax]*/\
408     "movq 8(%0, "#index", 2), %%mm6     \n\t" /*buf0[eax]*/\
409     "movq 8(%1, "#index", 2), %%mm7     \n\t" /*buf1[eax]*/\
410     "psubw             %%mm1, %%mm0     \n\t" /* buf0[eax] - buf1[eax]*/\
411     "psubw             %%mm7, %%mm6     \n\t" /* buf0[eax] - buf1[eax]*/\
412     "pmulhw "LUM_MMX_FILTER_OFFSET"+8("#c"), %%mm0  \n\t" /* (buf0[eax] - buf1[eax])yalpha1>>16*/\
413     "pmulhw "LUM_MMX_FILTER_OFFSET"+8("#c"), %%mm6  \n\t" /* (buf0[eax] - buf1[eax])yalpha1>>16*/\
414     "psraw                $7, %%mm1     \n\t" /* buf0[eax] - buf1[eax] >>4*/\
415     "psraw                $7, %%mm7     \n\t" /* buf0[eax] - buf1[eax] >>4*/\
416     "paddw             %%mm0, %%mm1     \n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\
417     "paddw             %%mm6, %%mm7     \n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\
418
419 #define YSCALEYUV2PACKED(index, c)  REAL_YSCALEYUV2PACKED(index, c)
420
421 #define REAL_YSCALEYUV2RGB_UV(index, c) \
422     "xor            "#index", "#index"  \n\t"\
423     ASMALIGN(4)\
424     "1:                                 \n\t"\
425     "movq     (%2, "#index"), %%mm2     \n\t" /* uvbuf0[eax]*/\
426     "movq     (%3, "#index"), %%mm3     \n\t" /* uvbuf1[eax]*/\
427     "movq "AV_STRINGIFY(VOF)"(%2, "#index"), %%mm5     \n\t" /* uvbuf0[eax+2048]*/\
428     "movq "AV_STRINGIFY(VOF)"(%3, "#index"), %%mm4     \n\t" /* uvbuf1[eax+2048]*/\
429     "psubw             %%mm3, %%mm2     \n\t" /* uvbuf0[eax] - uvbuf1[eax]*/\
430     "psubw             %%mm4, %%mm5     \n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048]*/\
431     "movq "CHR_MMX_FILTER_OFFSET"+8("#c"), %%mm0    \n\t"\
432     "pmulhw            %%mm0, %%mm2     \n\t" /* (uvbuf0[eax] - uvbuf1[eax])uvalpha1>>16*/\
433     "pmulhw            %%mm0, %%mm5     \n\t" /* (uvbuf0[eax+2048] - uvbuf1[eax+2048])uvalpha1>>16*/\
434     "psraw                $4, %%mm3     \n\t" /* uvbuf0[eax] - uvbuf1[eax] >>4*/\
435     "psraw                $4, %%mm4     \n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048] >>4*/\
436     "paddw             %%mm2, %%mm3     \n\t" /* uvbuf0[eax]uvalpha1 - uvbuf1[eax](1-uvalpha1)*/\
437     "paddw             %%mm5, %%mm4     \n\t" /* uvbuf0[eax+2048]uvalpha1 - uvbuf1[eax+2048](1-uvalpha1)*/\
438     "psubw  "U_OFFSET"("#c"), %%mm3     \n\t" /* (U-128)8*/\
439     "psubw  "V_OFFSET"("#c"), %%mm4     \n\t" /* (V-128)8*/\
440     "movq              %%mm3, %%mm2     \n\t" /* (U-128)8*/\
441     "movq              %%mm4, %%mm5     \n\t" /* (V-128)8*/\
442     "pmulhw "UG_COEFF"("#c"), %%mm3     \n\t"\
443     "pmulhw "VG_COEFF"("#c"), %%mm4     \n\t"\
444     /* mm2=(U-128)8, mm3=ug, mm4=vg mm5=(V-128)8 */\
445
446 #define REAL_YSCALEYUV2RGB_YA(index, c, b1, b2) \
447     "movq  ("#b1", "#index", 2), %%mm0     \n\t" /*buf0[eax]*/\
448     "movq  ("#b2", "#index", 2), %%mm1     \n\t" /*buf1[eax]*/\
449     "movq 8("#b1", "#index", 2), %%mm6     \n\t" /*buf0[eax]*/\
450     "movq 8("#b2", "#index", 2), %%mm7     \n\t" /*buf1[eax]*/\
451     "psubw             %%mm1, %%mm0     \n\t" /* buf0[eax] - buf1[eax]*/\
452     "psubw             %%mm7, %%mm6     \n\t" /* buf0[eax] - buf1[eax]*/\
453     "pmulhw "LUM_MMX_FILTER_OFFSET"+8("#c"), %%mm0  \n\t" /* (buf0[eax] - buf1[eax])yalpha1>>16*/\
454     "pmulhw "LUM_MMX_FILTER_OFFSET"+8("#c"), %%mm6  \n\t" /* (buf0[eax] - buf1[eax])yalpha1>>16*/\
455     "psraw                $4, %%mm1     \n\t" /* buf0[eax] - buf1[eax] >>4*/\
456     "psraw                $4, %%mm7     \n\t" /* buf0[eax] - buf1[eax] >>4*/\
457     "paddw             %%mm0, %%mm1     \n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\
458     "paddw             %%mm6, %%mm7     \n\t" /* buf0[eax]yalpha1 + buf1[eax](1-yalpha1) >>16*/\
459
460 #define REAL_YSCALEYUV2RGB_COEFF(c) \
461     "pmulhw "UB_COEFF"("#c"), %%mm2     \n\t"\
462     "pmulhw "VR_COEFF"("#c"), %%mm5     \n\t"\
463     "psubw  "Y_OFFSET"("#c"), %%mm1     \n\t" /* 8(Y-16)*/\
464     "psubw  "Y_OFFSET"("#c"), %%mm7     \n\t" /* 8(Y-16)*/\
465     "pmulhw  "Y_COEFF"("#c"), %%mm1     \n\t"\
466     "pmulhw  "Y_COEFF"("#c"), %%mm7     \n\t"\
467     /* mm1= Y1, mm2=ub, mm3=ug, mm4=vg mm5=vr, mm7=Y2 */\
468     "paddw             %%mm3, %%mm4     \n\t"\
469     "movq              %%mm2, %%mm0     \n\t"\
470     "movq              %%mm5, %%mm6     \n\t"\
471     "movq              %%mm4, %%mm3     \n\t"\
472     "punpcklwd         %%mm2, %%mm2     \n\t"\
473     "punpcklwd         %%mm5, %%mm5     \n\t"\
474     "punpcklwd         %%mm4, %%mm4     \n\t"\
475     "paddw             %%mm1, %%mm2     \n\t"\
476     "paddw             %%mm1, %%mm5     \n\t"\
477     "paddw             %%mm1, %%mm4     \n\t"\
478     "punpckhwd         %%mm0, %%mm0     \n\t"\
479     "punpckhwd         %%mm6, %%mm6     \n\t"\
480     "punpckhwd         %%mm3, %%mm3     \n\t"\
481     "paddw             %%mm7, %%mm0     \n\t"\
482     "paddw             %%mm7, %%mm6     \n\t"\
483     "paddw             %%mm7, %%mm3     \n\t"\
484     /* mm0=B1, mm2=B2, mm3=G2, mm4=G1, mm5=R1, mm6=R2 */\
485     "packuswb          %%mm0, %%mm2     \n\t"\
486     "packuswb          %%mm6, %%mm5     \n\t"\
487     "packuswb          %%mm3, %%mm4     \n\t"\
488
489 #define YSCALEYUV2RGB_YA(index, c, b1, b2) REAL_YSCALEYUV2RGB_YA(index, c, b1, b2)
490
491 #define YSCALEYUV2RGB(index, c) \
492     REAL_YSCALEYUV2RGB_UV(index, c) \
493     REAL_YSCALEYUV2RGB_YA(index, c, %0, %1) \
494     REAL_YSCALEYUV2RGB_COEFF(c)
495
496 #define REAL_YSCALEYUV2PACKED1(index, c) \
497     "xor            "#index", "#index"  \n\t"\
498     ASMALIGN(4)\
499     "1:                                 \n\t"\
500     "movq     (%2, "#index"), %%mm3     \n\t" /* uvbuf0[eax]*/\
501     "movq "AV_STRINGIFY(VOF)"(%2, "#index"), %%mm4     \n\t" /* uvbuf0[eax+2048]*/\
502     "psraw                $7, %%mm3     \n\t" \
503     "psraw                $7, %%mm4     \n\t" \
504     "movq  (%0, "#index", 2), %%mm1     \n\t" /*buf0[eax]*/\
505     "movq 8(%0, "#index", 2), %%mm7     \n\t" /*buf0[eax]*/\
506     "psraw                $7, %%mm1     \n\t" \
507     "psraw                $7, %%mm7     \n\t" \
508
509 #define YSCALEYUV2PACKED1(index, c)  REAL_YSCALEYUV2PACKED1(index, c)
510
511 #define REAL_YSCALEYUV2RGB1(index, c) \
512     "xor            "#index", "#index"  \n\t"\
513     ASMALIGN(4)\
514     "1:                                 \n\t"\
515     "movq     (%2, "#index"), %%mm3     \n\t" /* uvbuf0[eax]*/\
516     "movq "AV_STRINGIFY(VOF)"(%2, "#index"), %%mm4     \n\t" /* uvbuf0[eax+2048]*/\
517     "psraw                $4, %%mm3     \n\t" /* uvbuf0[eax] - uvbuf1[eax] >>4*/\
518     "psraw                $4, %%mm4     \n\t" /* uvbuf0[eax+2048] - uvbuf1[eax+2048] >>4*/\
519     "psubw  "U_OFFSET"("#c"), %%mm3     \n\t" /* (U-128)8*/\
520     "psubw  "V_OFFSET"("#c"), %%mm4     \n\t" /* (V-128)8*/\
521     "movq              %%mm3, %%mm2     \n\t" /* (U-128)8*/\
522     "movq              %%mm4, %%mm5     \n\t" /* (V-128)8*/\
523     "pmulhw "UG_COEFF"("#c"), %%mm3     \n\t"\
524     "pmulhw "VG_COEFF"("#c"), %%mm4     \n\t"\
525     /* mm2=(U-128)8, mm3=ug, mm4=vg mm5=(V-128)8 */\
526     "movq  (%0, "#index", 2), %%mm1     \n\t" /*buf0[eax]*/\
527     "movq 8(%0, "#index", 2), %%mm7     \n\t" /*buf0[eax]*/\
528     "psraw                $4, %%mm1     \n\t" /* buf0[eax] - buf1[eax] >>4*/\
529     "psraw                $4, %%mm7     \n\t" /* buf0[eax] - buf1[eax] >>4*/\
530     "pmulhw "UB_COEFF"("#c"), %%mm2     \n\t"\
531     "pmulhw "VR_COEFF"("#c"), %%mm5     \n\t"\
532     "psubw  "Y_OFFSET"("#c"), %%mm1     \n\t" /* 8(Y-16)*/\
533     "psubw  "Y_OFFSET"("#c"), %%mm7     \n\t" /* 8(Y-16)*/\
534     "pmulhw  "Y_COEFF"("#c"), %%mm1     \n\t"\
535     "pmulhw  "Y_COEFF"("#c"), %%mm7     \n\t"\
536     /* mm1= Y1, mm2=ub, mm3=ug, mm4=vg mm5=vr, mm7=Y2 */\
537     "paddw             %%mm3, %%mm4     \n\t"\
538     "movq              %%mm2, %%mm0     \n\t"\
539     "movq              %%mm5, %%mm6     \n\t"\
540     "movq              %%mm4, %%mm3     \n\t"\
541     "punpcklwd         %%mm2, %%mm2     \n\t"\
542     "punpcklwd         %%mm5, %%mm5     \n\t"\
543     "punpcklwd         %%mm4, %%mm4     \n\t"\
544     "paddw             %%mm1, %%mm2     \n\t"\
545     "paddw             %%mm1, %%mm5     \n\t"\
546     "paddw             %%mm1, %%mm4     \n\t"\
547     "punpckhwd         %%mm0, %%mm0     \n\t"\
548     "punpckhwd         %%mm6, %%mm6     \n\t"\
549     "punpckhwd         %%mm3, %%mm3     \n\t"\
550     "paddw             %%mm7, %%mm0     \n\t"\
551     "paddw             %%mm7, %%mm6     \n\t"\
552     "paddw             %%mm7, %%mm3     \n\t"\
553     /* mm0=B1, mm2=B2, mm3=G2, mm4=G1, mm5=R1, mm6=R2 */\
554     "packuswb          %%mm0, %%mm2     \n\t"\
555     "packuswb          %%mm6, %%mm5     \n\t"\
556     "packuswb          %%mm3, %%mm4     \n\t"\
557
558 #define YSCALEYUV2RGB1(index, c)  REAL_YSCALEYUV2RGB1(index, c)
559
560 #define REAL_YSCALEYUV2PACKED1b(index, c) \
561     "xor "#index", "#index"             \n\t"\
562     ASMALIGN(4)\
563     "1:                                 \n\t"\
564     "movq     (%2, "#index"), %%mm2     \n\t" /* uvbuf0[eax]*/\
565     "movq     (%3, "#index"), %%mm3     \n\t" /* uvbuf1[eax]*/\
566     "movq "AV_STRINGIFY(VOF)"(%2, "#index"), %%mm5     \n\t" /* uvbuf0[eax+2048]*/\
567     "movq "AV_STRINGIFY(VOF)"(%3, "#index"), %%mm4     \n\t" /* uvbuf1[eax+2048]*/\
568     "paddw             %%mm2, %%mm3     \n\t" /* uvbuf0[eax] + uvbuf1[eax]*/\
569     "paddw             %%mm5, %%mm4     \n\t" /* uvbuf0[eax+2048] + uvbuf1[eax+2048]*/\
570     "psrlw                $8, %%mm3     \n\t" \
571     "psrlw                $8, %%mm4     \n\t" \
572     "movq  (%0, "#index", 2), %%mm1     \n\t" /*buf0[eax]*/\
573     "movq 8(%0, "#index", 2), %%mm7     \n\t" /*buf0[eax]*/\
574     "psraw                $7, %%mm1     \n\t" \
575     "psraw                $7, %%mm7     \n\t"
576 #define YSCALEYUV2PACKED1b(index, c)  REAL_YSCALEYUV2PACKED1b(index, c)
577
578 // do vertical chrominance interpolation
579 #define REAL_YSCALEYUV2RGB1b(index, c) \
580     "xor            "#index", "#index"  \n\t"\
581     ASMALIGN(4)\
582     "1:                                 \n\t"\
583     "movq     (%2, "#index"), %%mm2     \n\t" /* uvbuf0[eax]*/\
584     "movq     (%3, "#index"), %%mm3     \n\t" /* uvbuf1[eax]*/\
585     "movq "AV_STRINGIFY(VOF)"(%2, "#index"), %%mm5     \n\t" /* uvbuf0[eax+2048]*/\
586     "movq "AV_STRINGIFY(VOF)"(%3, "#index"), %%mm4     \n\t" /* uvbuf1[eax+2048]*/\
587     "paddw             %%mm2, %%mm3     \n\t" /* uvbuf0[eax] + uvbuf1[eax]*/\
588     "paddw             %%mm5, %%mm4     \n\t" /* uvbuf0[eax+2048] + uvbuf1[eax+2048]*/\
589     "psrlw                $5, %%mm3     \n\t" /*FIXME might overflow*/\
590     "psrlw                $5, %%mm4     \n\t" /*FIXME might overflow*/\
591     "psubw  "U_OFFSET"("#c"), %%mm3     \n\t" /* (U-128)8*/\
592     "psubw  "V_OFFSET"("#c"), %%mm4     \n\t" /* (V-128)8*/\
593     "movq              %%mm3, %%mm2     \n\t" /* (U-128)8*/\
594     "movq              %%mm4, %%mm5     \n\t" /* (V-128)8*/\
595     "pmulhw "UG_COEFF"("#c"), %%mm3     \n\t"\
596     "pmulhw "VG_COEFF"("#c"), %%mm4     \n\t"\
597     /* mm2=(U-128)8, mm3=ug, mm4=vg mm5=(V-128)8 */\
598     "movq  (%0, "#index", 2), %%mm1     \n\t" /*buf0[eax]*/\
599     "movq 8(%0, "#index", 2), %%mm7     \n\t" /*buf0[eax]*/\
600     "psraw                $4, %%mm1     \n\t" /* buf0[eax] - buf1[eax] >>4*/\
601     "psraw                $4, %%mm7     \n\t" /* buf0[eax] - buf1[eax] >>4*/\
602     "pmulhw "UB_COEFF"("#c"), %%mm2     \n\t"\
603     "pmulhw "VR_COEFF"("#c"), %%mm5     \n\t"\
604     "psubw  "Y_OFFSET"("#c"), %%mm1     \n\t" /* 8(Y-16)*/\
605     "psubw  "Y_OFFSET"("#c"), %%mm7     \n\t" /* 8(Y-16)*/\
606     "pmulhw  "Y_COEFF"("#c"), %%mm1     \n\t"\
607     "pmulhw  "Y_COEFF"("#c"), %%mm7     \n\t"\
608     /* mm1= Y1, mm2=ub, mm3=ug, mm4=vg mm5=vr, mm7=Y2 */\
609     "paddw             %%mm3, %%mm4     \n\t"\
610     "movq              %%mm2, %%mm0     \n\t"\
611     "movq              %%mm5, %%mm6     \n\t"\
612     "movq              %%mm4, %%mm3     \n\t"\
613     "punpcklwd         %%mm2, %%mm2     \n\t"\
614     "punpcklwd         %%mm5, %%mm5     \n\t"\
615     "punpcklwd         %%mm4, %%mm4     \n\t"\
616     "paddw             %%mm1, %%mm2     \n\t"\
617     "paddw             %%mm1, %%mm5     \n\t"\
618     "paddw             %%mm1, %%mm4     \n\t"\
619     "punpckhwd         %%mm0, %%mm0     \n\t"\
620     "punpckhwd         %%mm6, %%mm6     \n\t"\
621     "punpckhwd         %%mm3, %%mm3     \n\t"\
622     "paddw             %%mm7, %%mm0     \n\t"\
623     "paddw             %%mm7, %%mm6     \n\t"\
624     "paddw             %%mm7, %%mm3     \n\t"\
625     /* mm0=B1, mm2=B2, mm3=G2, mm4=G1, mm5=R1, mm6=R2 */\
626     "packuswb          %%mm0, %%mm2     \n\t"\
627     "packuswb          %%mm6, %%mm5     \n\t"\
628     "packuswb          %%mm3, %%mm4     \n\t"\
629
630 #define YSCALEYUV2RGB1b(index, c)  REAL_YSCALEYUV2RGB1b(index, c)
631
632 #define REAL_YSCALEYUV2RGB1_ALPHA(index) \
633     "movq  (%1, "#index", 2), %%mm7     \n\t" /* abuf0[index  ]     */\
634     "movq 8(%1, "#index", 2), %%mm1     \n\t" /* abuf0[index+4]     */\
635     "psraw                $7, %%mm7     \n\t" /* abuf0[index  ] >>7 */\
636     "psraw                $7, %%mm1     \n\t" /* abuf0[index+4] >>7 */\
637     "packuswb          %%mm1, %%mm7     \n\t"
638 #define YSCALEYUV2RGB1_ALPHA(index) REAL_YSCALEYUV2RGB1_ALPHA(index)
639
640 #define REAL_WRITEBGR32(dst, dstw, index, b, g, r, a, q0, q2, q3, t) \
641     "movq       "#b", "#q2"     \n\t" /* B */\
642     "movq       "#r", "#t"      \n\t" /* R */\
643     "punpcklbw  "#g", "#b"      \n\t" /* GBGBGBGB 0 */\
644     "punpcklbw  "#a", "#r"      \n\t" /* ARARARAR 0 */\
645     "punpckhbw  "#g", "#q2"     \n\t" /* GBGBGBGB 2 */\
646     "punpckhbw  "#a", "#t"      \n\t" /* ARARARAR 2 */\
647     "movq       "#b", "#q0"     \n\t" /* GBGBGBGB 0 */\
648     "movq      "#q2", "#q3"     \n\t" /* GBGBGBGB 2 */\
649     "punpcklwd  "#r", "#q0"     \n\t" /* ARGBARGB 0 */\
650     "punpckhwd  "#r", "#b"      \n\t" /* ARGBARGB 1 */\
651     "punpcklwd  "#t", "#q2"     \n\t" /* ARGBARGB 2 */\
652     "punpckhwd  "#t", "#q3"     \n\t" /* ARGBARGB 3 */\
653 \
654     MOVNTQ(   q0,   (dst, index, 4))\
655     MOVNTQ(    b,  8(dst, index, 4))\
656     MOVNTQ(   q2, 16(dst, index, 4))\
657     MOVNTQ(   q3, 24(dst, index, 4))\
658 \
659     "add      $8, "#index"      \n\t"\
660     "cmp "#dstw", "#index"      \n\t"\
661     " jb      1b                \n\t"
662 #define WRITEBGR32(dst, dstw, index, b, g, r, a, q0, q2, q3, t)  REAL_WRITEBGR32(dst, dstw, index, b, g, r, a, q0, q2, q3, t)
663
664 #define REAL_WRITERGB16(dst, dstw, index) \
665     "pand "MANGLE(bF8)", %%mm2  \n\t" /* B */\
666     "pand "MANGLE(bFC)", %%mm4  \n\t" /* G */\
667     "pand "MANGLE(bF8)", %%mm5  \n\t" /* R */\
668     "psrlq           $3, %%mm2  \n\t"\
669 \
670     "movq         %%mm2, %%mm1  \n\t"\
671     "movq         %%mm4, %%mm3  \n\t"\
672 \
673     "punpcklbw    %%mm7, %%mm3  \n\t"\
674     "punpcklbw    %%mm5, %%mm2  \n\t"\
675     "punpckhbw    %%mm7, %%mm4  \n\t"\
676     "punpckhbw    %%mm5, %%mm1  \n\t"\
677 \
678     "psllq           $3, %%mm3  \n\t"\
679     "psllq           $3, %%mm4  \n\t"\
680 \
681     "por          %%mm3, %%mm2  \n\t"\
682     "por          %%mm4, %%mm1  \n\t"\
683 \
684     MOVNTQ(%%mm2,  (dst, index, 2))\
685     MOVNTQ(%%mm1, 8(dst, index, 2))\
686 \
687     "add             $8, "#index"   \n\t"\
688     "cmp        "#dstw", "#index"   \n\t"\
689     " jb             1b             \n\t"
690 #define WRITERGB16(dst, dstw, index)  REAL_WRITERGB16(dst, dstw, index)
691
692 #define REAL_WRITERGB15(dst, dstw, index) \
693     "pand "MANGLE(bF8)", %%mm2  \n\t" /* B */\
694     "pand "MANGLE(bF8)", %%mm4  \n\t" /* G */\
695     "pand "MANGLE(bF8)", %%mm5  \n\t" /* R */\
696     "psrlq           $3, %%mm2  \n\t"\
697     "psrlq           $1, %%mm5  \n\t"\
698 \
699     "movq         %%mm2, %%mm1  \n\t"\
700     "movq         %%mm4, %%mm3  \n\t"\
701 \
702     "punpcklbw    %%mm7, %%mm3  \n\t"\
703     "punpcklbw    %%mm5, %%mm2  \n\t"\
704     "punpckhbw    %%mm7, %%mm4  \n\t"\
705     "punpckhbw    %%mm5, %%mm1  \n\t"\
706 \
707     "psllq           $2, %%mm3  \n\t"\
708     "psllq           $2, %%mm4  \n\t"\
709 \
710     "por          %%mm3, %%mm2  \n\t"\
711     "por          %%mm4, %%mm1  \n\t"\
712 \
713     MOVNTQ(%%mm2,  (dst, index, 2))\
714     MOVNTQ(%%mm1, 8(dst, index, 2))\
715 \
716     "add             $8, "#index"   \n\t"\
717     "cmp        "#dstw", "#index"   \n\t"\
718     " jb             1b             \n\t"
719 #define WRITERGB15(dst, dstw, index)  REAL_WRITERGB15(dst, dstw, index)
720
721 #define WRITEBGR24OLD(dst, dstw, index) \
722     /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */\
723     "movq      %%mm2, %%mm1             \n\t" /* B */\
724     "movq      %%mm5, %%mm6             \n\t" /* R */\
725     "punpcklbw %%mm4, %%mm2             \n\t" /* GBGBGBGB 0 */\
726     "punpcklbw %%mm7, %%mm5             \n\t" /* 0R0R0R0R 0 */\
727     "punpckhbw %%mm4, %%mm1             \n\t" /* GBGBGBGB 2 */\
728     "punpckhbw %%mm7, %%mm6             \n\t" /* 0R0R0R0R 2 */\
729     "movq      %%mm2, %%mm0             \n\t" /* GBGBGBGB 0 */\
730     "movq      %%mm1, %%mm3             \n\t" /* GBGBGBGB 2 */\
731     "punpcklwd %%mm5, %%mm0             \n\t" /* 0RGB0RGB 0 */\
732     "punpckhwd %%mm5, %%mm2             \n\t" /* 0RGB0RGB 1 */\
733     "punpcklwd %%mm6, %%mm1             \n\t" /* 0RGB0RGB 2 */\
734     "punpckhwd %%mm6, %%mm3             \n\t" /* 0RGB0RGB 3 */\
735 \
736     "movq      %%mm0, %%mm4             \n\t" /* 0RGB0RGB 0 */\
737     "psrlq        $8, %%mm0             \n\t" /* 00RGB0RG 0 */\
738     "pand "MANGLE(bm00000111)", %%mm4   \n\t" /* 00000RGB 0 */\
739     "pand "MANGLE(bm11111000)", %%mm0   \n\t" /* 00RGB000 0.5 */\
740     "por       %%mm4, %%mm0             \n\t" /* 00RGBRGB 0 */\
741     "movq      %%mm2, %%mm4             \n\t" /* 0RGB0RGB 1 */\
742     "psllq       $48, %%mm2             \n\t" /* GB000000 1 */\
743     "por       %%mm2, %%mm0             \n\t" /* GBRGBRGB 0 */\
744 \
745     "movq      %%mm4, %%mm2             \n\t" /* 0RGB0RGB 1 */\
746     "psrld       $16, %%mm4             \n\t" /* 000R000R 1 */\
747     "psrlq       $24, %%mm2             \n\t" /* 0000RGB0 1.5 */\
748     "por       %%mm4, %%mm2             \n\t" /* 000RRGBR 1 */\
749     "pand "MANGLE(bm00001111)", %%mm2   \n\t" /* 0000RGBR 1 */\
750     "movq      %%mm1, %%mm4             \n\t" /* 0RGB0RGB 2 */\
751     "psrlq        $8, %%mm1             \n\t" /* 00RGB0RG 2 */\
752     "pand "MANGLE(bm00000111)", %%mm4   \n\t" /* 00000RGB 2 */\
753     "pand "MANGLE(bm11111000)", %%mm1   \n\t" /* 00RGB000 2.5 */\
754     "por       %%mm4, %%mm1             \n\t" /* 00RGBRGB 2 */\
755     "movq      %%mm1, %%mm4             \n\t" /* 00RGBRGB 2 */\
756     "psllq       $32, %%mm1             \n\t" /* BRGB0000 2 */\
757     "por       %%mm1, %%mm2             \n\t" /* BRGBRGBR 1 */\
758 \
759     "psrlq       $32, %%mm4             \n\t" /* 000000RG 2.5 */\
760     "movq      %%mm3, %%mm5             \n\t" /* 0RGB0RGB 3 */\
761     "psrlq        $8, %%mm3             \n\t" /* 00RGB0RG 3 */\
762     "pand "MANGLE(bm00000111)", %%mm5   \n\t" /* 00000RGB 3 */\
763     "pand "MANGLE(bm11111000)", %%mm3   \n\t" /* 00RGB000 3.5 */\
764     "por       %%mm5, %%mm3             \n\t" /* 00RGBRGB 3 */\
765     "psllq       $16, %%mm3             \n\t" /* RGBRGB00 3 */\
766     "por       %%mm4, %%mm3             \n\t" /* RGBRGBRG 2.5 */\
767 \
768     MOVNTQ(%%mm0,   (dst))\
769     MOVNTQ(%%mm2,  8(dst))\
770     MOVNTQ(%%mm3, 16(dst))\
771     "add         $24, "#dst"            \n\t"\
772 \
773     "add          $8, "#index"          \n\t"\
774     "cmp     "#dstw", "#index"          \n\t"\
775     " jb          1b                    \n\t"
776
777 #define WRITEBGR24MMX(dst, dstw, index) \
778     /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */\
779     "movq      %%mm2, %%mm1     \n\t" /* B */\
780     "movq      %%mm5, %%mm6     \n\t" /* R */\
781     "punpcklbw %%mm4, %%mm2     \n\t" /* GBGBGBGB 0 */\
782     "punpcklbw %%mm7, %%mm5     \n\t" /* 0R0R0R0R 0 */\
783     "punpckhbw %%mm4, %%mm1     \n\t" /* GBGBGBGB 2 */\
784     "punpckhbw %%mm7, %%mm6     \n\t" /* 0R0R0R0R 2 */\
785     "movq      %%mm2, %%mm0     \n\t" /* GBGBGBGB 0 */\
786     "movq      %%mm1, %%mm3     \n\t" /* GBGBGBGB 2 */\
787     "punpcklwd %%mm5, %%mm0     \n\t" /* 0RGB0RGB 0 */\
788     "punpckhwd %%mm5, %%mm2     \n\t" /* 0RGB0RGB 1 */\
789     "punpcklwd %%mm6, %%mm1     \n\t" /* 0RGB0RGB 2 */\
790     "punpckhwd %%mm6, %%mm3     \n\t" /* 0RGB0RGB 3 */\
791 \
792     "movq      %%mm0, %%mm4     \n\t" /* 0RGB0RGB 0 */\
793     "movq      %%mm2, %%mm6     \n\t" /* 0RGB0RGB 1 */\
794     "movq      %%mm1, %%mm5     \n\t" /* 0RGB0RGB 2 */\
795     "movq      %%mm3, %%mm7     \n\t" /* 0RGB0RGB 3 */\
796 \
797     "psllq       $40, %%mm0     \n\t" /* RGB00000 0 */\
798     "psllq       $40, %%mm2     \n\t" /* RGB00000 1 */\
799     "psllq       $40, %%mm1     \n\t" /* RGB00000 2 */\
800     "psllq       $40, %%mm3     \n\t" /* RGB00000 3 */\
801 \
802     "punpckhdq %%mm4, %%mm0     \n\t" /* 0RGBRGB0 0 */\
803     "punpckhdq %%mm6, %%mm2     \n\t" /* 0RGBRGB0 1 */\
804     "punpckhdq %%mm5, %%mm1     \n\t" /* 0RGBRGB0 2 */\
805     "punpckhdq %%mm7, %%mm3     \n\t" /* 0RGBRGB0 3 */\
806 \
807     "psrlq        $8, %%mm0     \n\t" /* 00RGBRGB 0 */\
808     "movq      %%mm2, %%mm6     \n\t" /* 0RGBRGB0 1 */\
809     "psllq       $40, %%mm2     \n\t" /* GB000000 1 */\
810     "por       %%mm2, %%mm0     \n\t" /* GBRGBRGB 0 */\
811     MOVNTQ(%%mm0, (dst))\
812 \
813     "psrlq       $24, %%mm6     \n\t" /* 0000RGBR 1 */\
814     "movq      %%mm1, %%mm5     \n\t" /* 0RGBRGB0 2 */\
815     "psllq       $24, %%mm1     \n\t" /* BRGB0000 2 */\
816     "por       %%mm1, %%mm6     \n\t" /* BRGBRGBR 1 */\
817     MOVNTQ(%%mm6, 8(dst))\
818 \
819     "psrlq       $40, %%mm5     \n\t" /* 000000RG 2 */\
820     "psllq        $8, %%mm3     \n\t" /* RGBRGB00 3 */\
821     "por       %%mm3, %%mm5     \n\t" /* RGBRGBRG 2 */\
822     MOVNTQ(%%mm5, 16(dst))\
823 \
824     "add         $24, "#dst"    \n\t"\
825 \
826     "add          $8, "#index"  \n\t"\
827     "cmp     "#dstw", "#index"  \n\t"\
828     " jb          1b            \n\t"
829
830 #define WRITEBGR24MMX2(dst, dstw, index) \
831     /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */\
832     "movq "MANGLE(ff_M24A)", %%mm0 \n\t"\
833     "movq "MANGLE(ff_M24C)", %%mm7 \n\t"\
834     "pshufw $0x50, %%mm2, %%mm1 \n\t" /* B3 B2 B3 B2  B1 B0 B1 B0 */\
835     "pshufw $0x50, %%mm4, %%mm3 \n\t" /* G3 G2 G3 G2  G1 G0 G1 G0 */\
836     "pshufw $0x00, %%mm5, %%mm6 \n\t" /* R1 R0 R1 R0  R1 R0 R1 R0 */\
837 \
838     "pand   %%mm0, %%mm1        \n\t" /*    B2        B1       B0 */\
839     "pand   %%mm0, %%mm3        \n\t" /*    G2        G1       G0 */\
840     "pand   %%mm7, %%mm6        \n\t" /*       R1        R0       */\
841 \
842     "psllq     $8, %%mm3        \n\t" /* G2        G1       G0    */\
843     "por    %%mm1, %%mm6        \n\t"\
844     "por    %%mm3, %%mm6        \n\t"\
845     MOVNTQ(%%mm6, (dst))\
846 \
847     "psrlq     $8, %%mm4        \n\t" /* 00 G7 G6 G5  G4 G3 G2 G1 */\
848     "pshufw $0xA5, %%mm2, %%mm1 \n\t" /* B5 B4 B5 B4  B3 B2 B3 B2 */\
849     "pshufw $0x55, %%mm4, %%mm3 \n\t" /* G4 G3 G4 G3  G4 G3 G4 G3 */\
850     "pshufw $0xA5, %%mm5, %%mm6 \n\t" /* R5 R4 R5 R4  R3 R2 R3 R2 */\
851 \
852     "pand "MANGLE(ff_M24B)", %%mm1 \n\t" /* B5       B4        B3    */\
853     "pand   %%mm7, %%mm3        \n\t" /*       G4        G3       */\
854     "pand   %%mm0, %%mm6        \n\t" /*    R4        R3       R2 */\
855 \
856     "por    %%mm1, %%mm3        \n\t" /* B5    G4 B4     G3 B3    */\
857     "por    %%mm3, %%mm6        \n\t"\
858     MOVNTQ(%%mm6, 8(dst))\
859 \
860     "pshufw $0xFF, %%mm2, %%mm1 \n\t" /* B7 B6 B7 B6  B7 B6 B6 B7 */\
861     "pshufw $0xFA, %%mm4, %%mm3 \n\t" /* 00 G7 00 G7  G6 G5 G6 G5 */\
862     "pshufw $0xFA, %%mm5, %%mm6 \n\t" /* R7 R6 R7 R6  R5 R4 R5 R4 */\
863 \
864     "pand   %%mm7, %%mm1        \n\t" /*       B7        B6       */\
865     "pand   %%mm0, %%mm3        \n\t" /*    G7        G6       G5 */\
866     "pand "MANGLE(ff_M24B)", %%mm6 \n\t" /* R7       R6        R5    */\
867 \
868     "por    %%mm1, %%mm3        \n\t"\
869     "por    %%mm3, %%mm6        \n\t"\
870     MOVNTQ(%%mm6, 16(dst))\
871 \
872     "add      $24, "#dst"       \n\t"\
873 \
874     "add       $8, "#index"     \n\t"\
875     "cmp  "#dstw", "#index"     \n\t"\
876     " jb       1b               \n\t"
877
878 #if HAVE_MMX2
879 #undef WRITEBGR24
880 #define WRITEBGR24(dst, dstw, index)  WRITEBGR24MMX2(dst, dstw, index)
881 #else
882 #undef WRITEBGR24
883 #define WRITEBGR24(dst, dstw, index)  WRITEBGR24MMX(dst, dstw, index)
884 #endif
885
886 #define REAL_WRITEYUY2(dst, dstw, index) \
887     "packuswb  %%mm3, %%mm3     \n\t"\
888     "packuswb  %%mm4, %%mm4     \n\t"\
889     "packuswb  %%mm7, %%mm1     \n\t"\
890     "punpcklbw %%mm4, %%mm3     \n\t"\
891     "movq      %%mm1, %%mm7     \n\t"\
892     "punpcklbw %%mm3, %%mm1     \n\t"\
893     "punpckhbw %%mm3, %%mm7     \n\t"\
894 \
895     MOVNTQ(%%mm1, (dst, index, 2))\
896     MOVNTQ(%%mm7, 8(dst, index, 2))\
897 \
898     "add          $8, "#index"  \n\t"\
899     "cmp     "#dstw", "#index"  \n\t"\
900     " jb          1b            \n\t"
901 #define WRITEYUY2(dst, dstw, index)  REAL_WRITEYUY2(dst, dstw, index)
902
903
904 static inline void RENAME(yuv2yuvX)(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
905                                     const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize, const int16_t **alpSrc,
906                                     uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, long dstW, long chrDstW)
907 {
908 #if HAVE_MMX
909     if(!(c->flags & SWS_BITEXACT)){
910         if (c->flags & SWS_ACCURATE_RND){
911             if (uDest){
912                 YSCALEYUV2YV12X_ACCURATE(   "0", CHR_MMX_FILTER_OFFSET, uDest, chrDstW)
913                 YSCALEYUV2YV12X_ACCURATE(AV_STRINGIFY(VOF), CHR_MMX_FILTER_OFFSET, vDest, chrDstW)
914             }
915             if (CONFIG_SWSCALE_ALPHA && aDest){
916                 YSCALEYUV2YV12X_ACCURATE(   "0", ALP_MMX_FILTER_OFFSET, aDest, dstW)
917             }
918
919             YSCALEYUV2YV12X_ACCURATE("0", LUM_MMX_FILTER_OFFSET, dest, dstW)
920         }else{
921             if (uDest){
922                 YSCALEYUV2YV12X(   "0", CHR_MMX_FILTER_OFFSET, uDest, chrDstW)
923                 YSCALEYUV2YV12X(AV_STRINGIFY(VOF), CHR_MMX_FILTER_OFFSET, vDest, chrDstW)
924             }
925             if (CONFIG_SWSCALE_ALPHA && aDest){
926                 YSCALEYUV2YV12X(   "0", ALP_MMX_FILTER_OFFSET, aDest, dstW)
927             }
928
929             YSCALEYUV2YV12X("0", LUM_MMX_FILTER_OFFSET, dest, dstW)
930         }
931         return;
932     }
933 #endif
934 #if HAVE_ALTIVEC
935 yuv2yuvX_altivec_real(lumFilter, lumSrc, lumFilterSize,
936                       chrFilter, chrSrc, chrFilterSize,
937                       dest, uDest, vDest, dstW, chrDstW);
938 #else //HAVE_ALTIVEC
939 yuv2yuvXinC(lumFilter, lumSrc, lumFilterSize,
940             chrFilter, chrSrc, chrFilterSize,
941             alpSrc, dest, uDest, vDest, aDest, dstW, chrDstW);
942 #endif //!HAVE_ALTIVEC
943 }
944
945 static inline void RENAME(yuv2nv12X)(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
946                                      const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
947                                      uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
948 {
949 yuv2nv12XinC(lumFilter, lumSrc, lumFilterSize,
950              chrFilter, chrSrc, chrFilterSize,
951              dest, uDest, dstW, chrDstW, dstFormat);
952 }
953
954 static inline void RENAME(yuv2yuv1)(SwsContext *c, const int16_t *lumSrc, const int16_t *chrSrc, const int16_t *alpSrc,
955                                     uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, long dstW, long chrDstW)
956 {
957     int i;
958 #if HAVE_MMX
959     if(!(c->flags & SWS_BITEXACT)){
960         long p= 4;
961         uint8_t *src[4]= {alpSrc + dstW, lumSrc + dstW, chrSrc + chrDstW, chrSrc + VOFW + chrDstW};
962         uint8_t *dst[4]= {aDest, dest, uDest, vDest};
963         x86_reg counter[4]= {dstW, dstW, chrDstW, chrDstW};
964
965         if (c->flags & SWS_ACCURATE_RND){
966             while(p--){
967                 if (dst[p]){
968                     __asm__ volatile(
969                         YSCALEYUV2YV121_ACCURATE
970                         :: "r" (src[p]), "r" (dst[p] + counter[p]),
971                         "g" (-counter[p])
972                         : "%"REG_a
973                     );
974                 }
975             }
976         }else{
977             while(p--){
978                 if (dst[p]){
979                     __asm__ volatile(
980                         YSCALEYUV2YV121
981                         :: "r" (src[p]), "r" (dst[p] + counter[p]),
982                         "g" (-counter[p])
983                         : "%"REG_a
984                     );
985                 }
986             }
987         }
988         return;
989     }
990 #endif
991     for (i=0; i<dstW; i++)
992     {
993         int val= (lumSrc[i]+64)>>7;
994
995         if (val&256){
996             if (val<0) val=0;
997             else       val=255;
998         }
999
1000         dest[i]= val;
1001     }
1002
1003     if (uDest)
1004         for (i=0; i<chrDstW; i++)
1005         {
1006             int u=(chrSrc[i       ]+64)>>7;
1007             int v=(chrSrc[i + VOFW]+64)>>7;
1008
1009             if ((u|v)&256){
1010                 if (u<0)        u=0;
1011                 else if (u>255) u=255;
1012                 if (v<0)        v=0;
1013                 else if (v>255) v=255;
1014             }
1015
1016             uDest[i]= u;
1017             vDest[i]= v;
1018         }
1019
1020     if (CONFIG_SWSCALE_ALPHA && aDest)
1021         for (i=0; i<dstW; i++){
1022             int val= (alpSrc[i]+64)>>7;
1023             aDest[i]= av_clip_uint8(val);
1024         }
1025 }
1026
1027
1028 /**
1029  * vertical scale YV12 to RGB
1030  */
1031 static inline void RENAME(yuv2packedX)(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
1032                                        const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
1033                                        const int16_t **alpSrc, uint8_t *dest, long dstW, long dstY)
1034 {
1035 #if HAVE_MMX
1036     x86_reg dummy=0;
1037     if(!(c->flags & SWS_BITEXACT)){
1038         if (c->flags & SWS_ACCURATE_RND){
1039             switch(c->dstFormat){
1040             case PIX_FMT_RGB32:
1041                 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){
1042                     YSCALEYUV2PACKEDX_ACCURATE
1043                     YSCALEYUV2RGBX
1044                     "movq                      %%mm2, "U_TEMP"(%0)  \n\t"
1045                     "movq                      %%mm4, "V_TEMP"(%0)  \n\t"
1046                     "movq                      %%mm5, "Y_TEMP"(%0)  \n\t"
1047                     YSCALEYUV2PACKEDX_ACCURATE_YA(ALP_MMX_FILTER_OFFSET)
1048                     "movq               "Y_TEMP"(%0), %%mm5         \n\t"
1049                     "psraw                        $3, %%mm1         \n\t"
1050                     "psraw                        $3, %%mm7         \n\t"
1051                     "packuswb                  %%mm7, %%mm1         \n\t"
1052                     WRITEBGR32(%4, %5, %%REGa, %%mm3, %%mm4, %%mm5, %%mm1, %%mm0, %%mm7, %%mm2, %%mm6)
1053
1054                     YSCALEYUV2PACKEDX_END
1055                 }else{
1056                     YSCALEYUV2PACKEDX_ACCURATE
1057                     YSCALEYUV2RGBX
1058                     "pcmpeqd %%mm7, %%mm7 \n\t"
1059                     WRITEBGR32(%4, %5, %%REGa, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
1060
1061                     YSCALEYUV2PACKEDX_END
1062                 }
1063                 return;
1064             case PIX_FMT_BGR24:
1065                 YSCALEYUV2PACKEDX_ACCURATE
1066                 YSCALEYUV2RGBX
1067                 "pxor %%mm7, %%mm7 \n\t"
1068                 "lea (%%"REG_a", %%"REG_a", 2), %%"REG_c"\n\t" //FIXME optimize
1069                 "add %4, %%"REG_c"                        \n\t"
1070                 WRITEBGR24(%%REGc, %5, %%REGa)
1071
1072
1073                 :: "r" (&c->redDither),
1074                 "m" (dummy), "m" (dummy), "m" (dummy),
1075                 "r" (dest), "m" (dstW)
1076                 : "%"REG_a, "%"REG_c, "%"REG_d, "%"REG_S
1077                 );
1078                 return;
1079             case PIX_FMT_RGB555:
1080                 YSCALEYUV2PACKEDX_ACCURATE
1081                 YSCALEYUV2RGBX
1082                 "pxor %%mm7, %%mm7 \n\t"
1083                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1084 #ifdef DITHER1XBPP
1085                 "paddusb "BLUE_DITHER"(%0), %%mm2\n\t"
1086                 "paddusb "GREEN_DITHER"(%0), %%mm4\n\t"
1087                 "paddusb "RED_DITHER"(%0), %%mm5\n\t"
1088 #endif
1089
1090                 WRITERGB15(%4, %5, %%REGa)
1091                 YSCALEYUV2PACKEDX_END
1092                 return;
1093             case PIX_FMT_RGB565:
1094                 YSCALEYUV2PACKEDX_ACCURATE
1095                 YSCALEYUV2RGBX
1096                 "pxor %%mm7, %%mm7 \n\t"
1097                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1098 #ifdef DITHER1XBPP
1099                 "paddusb "BLUE_DITHER"(%0), %%mm2\n\t"
1100                 "paddusb "GREEN_DITHER"(%0), %%mm4\n\t"
1101                 "paddusb "RED_DITHER"(%0), %%mm5\n\t"
1102 #endif
1103
1104                 WRITERGB16(%4, %5, %%REGa)
1105                 YSCALEYUV2PACKEDX_END
1106                 return;
1107             case PIX_FMT_YUYV422:
1108                 YSCALEYUV2PACKEDX_ACCURATE
1109                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1110
1111                 "psraw $3, %%mm3    \n\t"
1112                 "psraw $3, %%mm4    \n\t"
1113                 "psraw $3, %%mm1    \n\t"
1114                 "psraw $3, %%mm7    \n\t"
1115                 WRITEYUY2(%4, %5, %%REGa)
1116                 YSCALEYUV2PACKEDX_END
1117                 return;
1118             }
1119         }else{
1120             switch(c->dstFormat)
1121             {
1122             case PIX_FMT_RGB32:
1123                 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){
1124                     YSCALEYUV2PACKEDX
1125                     YSCALEYUV2RGBX
1126                     YSCALEYUV2PACKEDX_YA(ALP_MMX_FILTER_OFFSET, %%mm0, %%mm3, %%mm6, %%mm1, %%mm7)
1127                     "psraw                        $3, %%mm1         \n\t"
1128                     "psraw                        $3, %%mm7         \n\t"
1129                     "packuswb                  %%mm7, %%mm1         \n\t"
1130                     WRITEBGR32(%4, %5, %%REGa, %%mm2, %%mm4, %%mm5, %%mm1, %%mm0, %%mm7, %%mm3, %%mm6)
1131                     YSCALEYUV2PACKEDX_END
1132                 }else{
1133                     YSCALEYUV2PACKEDX
1134                     YSCALEYUV2RGBX
1135                     "pcmpeqd %%mm7, %%mm7 \n\t"
1136                     WRITEBGR32(%4, %5, %%REGa, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
1137                     YSCALEYUV2PACKEDX_END
1138                 }
1139                 return;
1140             case PIX_FMT_BGR24:
1141                 YSCALEYUV2PACKEDX
1142                 YSCALEYUV2RGBX
1143                 "pxor                    %%mm7, %%mm7       \n\t"
1144                 "lea (%%"REG_a", %%"REG_a", 2), %%"REG_c"   \n\t" //FIXME optimize
1145                 "add                        %4, %%"REG_c"   \n\t"
1146                 WRITEBGR24(%%REGc, %5, %%REGa)
1147
1148                 :: "r" (&c->redDither),
1149                 "m" (dummy), "m" (dummy), "m" (dummy),
1150                 "r" (dest),  "m" (dstW)
1151                 : "%"REG_a, "%"REG_c, "%"REG_d, "%"REG_S
1152                 );
1153                 return;
1154             case PIX_FMT_RGB555:
1155                 YSCALEYUV2PACKEDX
1156                 YSCALEYUV2RGBX
1157                 "pxor %%mm7, %%mm7 \n\t"
1158                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1159 #ifdef DITHER1XBPP
1160                 "paddusb "BLUE_DITHER"(%0), %%mm2  \n\t"
1161                 "paddusb "GREEN_DITHER"(%0), %%mm4  \n\t"
1162                 "paddusb "RED_DITHER"(%0), %%mm5  \n\t"
1163 #endif
1164
1165                 WRITERGB15(%4, %5, %%REGa)
1166                 YSCALEYUV2PACKEDX_END
1167                 return;
1168             case PIX_FMT_RGB565:
1169                 YSCALEYUV2PACKEDX
1170                 YSCALEYUV2RGBX
1171                 "pxor %%mm7, %%mm7 \n\t"
1172                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1173 #ifdef DITHER1XBPP
1174                 "paddusb "BLUE_DITHER"(%0), %%mm2  \n\t"
1175                 "paddusb "GREEN_DITHER"(%0), %%mm4  \n\t"
1176                 "paddusb "RED_DITHER"(%0), %%mm5  \n\t"
1177 #endif
1178
1179                 WRITERGB16(%4, %5, %%REGa)
1180                 YSCALEYUV2PACKEDX_END
1181                 return;
1182             case PIX_FMT_YUYV422:
1183                 YSCALEYUV2PACKEDX
1184                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1185
1186                 "psraw $3, %%mm3    \n\t"
1187                 "psraw $3, %%mm4    \n\t"
1188                 "psraw $3, %%mm1    \n\t"
1189                 "psraw $3, %%mm7    \n\t"
1190                 WRITEYUY2(%4, %5, %%REGa)
1191                 YSCALEYUV2PACKEDX_END
1192                 return;
1193             }
1194         }
1195     }
1196 #endif /* HAVE_MMX */
1197 #if HAVE_ALTIVEC
1198     /* The following list of supported dstFormat values should
1199        match what's found in the body of ff_yuv2packedX_altivec() */
1200     if (!(c->flags & SWS_BITEXACT) && !c->alpPixBuf &&
1201        (c->dstFormat==PIX_FMT_ABGR  || c->dstFormat==PIX_FMT_BGRA  ||
1202         c->dstFormat==PIX_FMT_BGR24 || c->dstFormat==PIX_FMT_RGB24 ||
1203         c->dstFormat==PIX_FMT_RGBA  || c->dstFormat==PIX_FMT_ARGB))
1204             ff_yuv2packedX_altivec(c, lumFilter, lumSrc, lumFilterSize,
1205                                    chrFilter, chrSrc, chrFilterSize,
1206                                    dest, dstW, dstY);
1207     else
1208 #endif
1209         yuv2packedXinC(c, lumFilter, lumSrc, lumFilterSize,
1210                        chrFilter, chrSrc, chrFilterSize,
1211                        alpSrc, dest, dstW, dstY);
1212 }
1213
1214 /**
1215  * vertical bilinear scale YV12 to RGB
1216  */
1217 static inline void RENAME(yuv2packed2)(SwsContext *c, const uint16_t *buf0, const uint16_t *buf1, const uint16_t *uvbuf0, const uint16_t *uvbuf1,
1218                           const uint16_t *abuf0, const uint16_t *abuf1, uint8_t *dest, int dstW, int yalpha, int uvalpha, int y)
1219 {
1220     int  yalpha1=4095- yalpha;
1221     int uvalpha1=4095-uvalpha;
1222     int i;
1223
1224 #if HAVE_MMX
1225     if(!(c->flags & SWS_BITEXACT)){
1226         switch(c->dstFormat)
1227         {
1228             //Note 8280 == DSTW_OFFSET but the preprocessor can't handle that there :(
1229             case PIX_FMT_RGB32:
1230                 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){
1231 #if ARCH_X86_64
1232                     __asm__ volatile(
1233                     YSCALEYUV2RGB(%%REGBP, %5)
1234                     YSCALEYUV2RGB_YA(%%REGBP, %5, %6, %7)
1235                     "psraw                  $3, %%mm1       \n\t" /* abuf0[eax] - abuf1[eax] >>7*/
1236                     "psraw                  $3, %%mm7       \n\t" /* abuf0[eax] - abuf1[eax] >>7*/
1237                     "packuswb            %%mm7, %%mm1       \n\t"
1238                     WRITEBGR32(%4, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm1, %%mm0, %%mm7, %%mm3, %%mm6)
1239
1240                     :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "r" (dest),
1241                     "a" (&c->redDither)
1242                     ,"r" (abuf0), "r" (abuf1)
1243                     : "%"REG_BP
1244                     );
1245 #else
1246                     *(uint16_t **)(&c->u_temp)=abuf0;
1247                     *(uint16_t **)(&c->v_temp)=abuf1;
1248                     __asm__ volatile(
1249                     "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1250                     "mov        %4, %%"REG_b"               \n\t"
1251                     "push %%"REG_BP"                        \n\t"
1252                     YSCALEYUV2RGB(%%REGBP, %5)
1253                     "push                   %0              \n\t"
1254                     "push                   %1              \n\t"
1255                     "mov          "U_TEMP"(%5), %0          \n\t"
1256                     "mov          "V_TEMP"(%5), %1          \n\t"
1257                     YSCALEYUV2RGB_YA(%%REGBP, %5, %0, %1)
1258                     "psraw                  $3, %%mm1       \n\t" /* abuf0[eax] - abuf1[eax] >>7*/
1259                     "psraw                  $3, %%mm7       \n\t" /* abuf0[eax] - abuf1[eax] >>7*/
1260                     "packuswb            %%mm7, %%mm1       \n\t"
1261                     "pop                    %1              \n\t"
1262                     "pop                    %0              \n\t"
1263                     WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm1, %%mm0, %%mm7, %%mm3, %%mm6)
1264                     "pop %%"REG_BP"                         \n\t"
1265                     "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1266
1267                     :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1268                     "a" (&c->redDither)
1269                     );
1270 #endif
1271                 }else{
1272                     __asm__ volatile(
1273                     "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1274                     "mov        %4, %%"REG_b"               \n\t"
1275                     "push %%"REG_BP"                        \n\t"
1276                     YSCALEYUV2RGB(%%REGBP, %5)
1277                     "pcmpeqd %%mm7, %%mm7                   \n\t"
1278                     WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
1279                     "pop %%"REG_BP"                         \n\t"
1280                     "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1281
1282                     :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1283                     "a" (&c->redDither)
1284                     );
1285                 }
1286                 return;
1287             case PIX_FMT_BGR24:
1288                 __asm__ volatile(
1289                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1290                 "mov        %4, %%"REG_b"               \n\t"
1291                 "push %%"REG_BP"                        \n\t"
1292                 YSCALEYUV2RGB(%%REGBP, %5)
1293                 "pxor    %%mm7, %%mm7                   \n\t"
1294                 WRITEBGR24(%%REGb, 8280(%5), %%REGBP)
1295                 "pop %%"REG_BP"                         \n\t"
1296                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1297                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1298                 "a" (&c->redDither)
1299                 );
1300                 return;
1301             case PIX_FMT_RGB555:
1302                 __asm__ volatile(
1303                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1304                 "mov        %4, %%"REG_b"               \n\t"
1305                 "push %%"REG_BP"                        \n\t"
1306                 YSCALEYUV2RGB(%%REGBP, %5)
1307                 "pxor    %%mm7, %%mm7                   \n\t"
1308                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1309 #ifdef DITHER1XBPP
1310                 "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
1311                 "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
1312                 "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
1313 #endif
1314
1315                 WRITERGB15(%%REGb, 8280(%5), %%REGBP)
1316                 "pop %%"REG_BP"                         \n\t"
1317                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1318
1319                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1320                 "a" (&c->redDither)
1321                 );
1322                 return;
1323             case PIX_FMT_RGB565:
1324                 __asm__ volatile(
1325                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1326                 "mov        %4, %%"REG_b"               \n\t"
1327                 "push %%"REG_BP"                        \n\t"
1328                 YSCALEYUV2RGB(%%REGBP, %5)
1329                 "pxor    %%mm7, %%mm7                   \n\t"
1330                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1331 #ifdef DITHER1XBPP
1332                 "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
1333                 "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
1334                 "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
1335 #endif
1336
1337                 WRITERGB16(%%REGb, 8280(%5), %%REGBP)
1338                 "pop %%"REG_BP"                         \n\t"
1339                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1340                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1341                 "a" (&c->redDither)
1342                 );
1343                 return;
1344             case PIX_FMT_YUYV422:
1345                 __asm__ volatile(
1346                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1347                 "mov %4, %%"REG_b"                        \n\t"
1348                 "push %%"REG_BP"                        \n\t"
1349                 YSCALEYUV2PACKED(%%REGBP, %5)
1350                 WRITEYUY2(%%REGb, 8280(%5), %%REGBP)
1351                 "pop %%"REG_BP"                         \n\t"
1352                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1353                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1354                 "a" (&c->redDither)
1355                 );
1356                 return;
1357             default: break;
1358         }
1359     }
1360 #endif //HAVE_MMX
1361 YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGB2_C, YSCALE_YUV_2_PACKED2_C(void,0), YSCALE_YUV_2_GRAY16_2_C, YSCALE_YUV_2_MONO2_C)
1362 }
1363
1364 /**
1365  * YV12 to RGB without scaling or interpolating
1366  */
1367 static inline void RENAME(yuv2packed1)(SwsContext *c, const uint16_t *buf0, const uint16_t *uvbuf0, const uint16_t *uvbuf1,
1368                           const uint16_t *abuf0, uint8_t *dest, int dstW, int uvalpha, int dstFormat, int flags, int y)
1369 {
1370     const int yalpha1=0;
1371     int i;
1372
1373     const uint16_t *buf1= buf0; //FIXME needed for RGB1/BGR1
1374     const int yalpha= 4096; //FIXME ...
1375
1376     if (flags&SWS_FULL_CHR_H_INT)
1377     {
1378         c->yuv2packed2(c, buf0, buf0, uvbuf0, uvbuf1, abuf0, abuf0, dest, dstW, 0, uvalpha, y);
1379         return;
1380     }
1381
1382 #if HAVE_MMX
1383     if(!(flags & SWS_BITEXACT)){
1384         if (uvalpha < 2048) // note this is not correct (shifts chrominance by 0.5 pixels) but it is a bit faster
1385         {
1386             switch(dstFormat)
1387             {
1388             case PIX_FMT_RGB32:
1389                 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){
1390                     __asm__ volatile(
1391                     "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1392                     "mov        %4, %%"REG_b"               \n\t"
1393                     "push %%"REG_BP"                        \n\t"
1394                     YSCALEYUV2RGB1(%%REGBP, %5)
1395                     YSCALEYUV2RGB1_ALPHA(%%REGBP)
1396                     WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
1397                     "pop %%"REG_BP"                         \n\t"
1398                     "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1399
1400                     :: "c" (buf0), "d" (abuf0), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1401                     "a" (&c->redDither)
1402                     );
1403                 }else{
1404                     __asm__ volatile(
1405                     "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1406                     "mov        %4, %%"REG_b"               \n\t"
1407                     "push %%"REG_BP"                        \n\t"
1408                     YSCALEYUV2RGB1(%%REGBP, %5)
1409                     "pcmpeqd %%mm7, %%mm7                   \n\t"
1410                     WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
1411                     "pop %%"REG_BP"                         \n\t"
1412                     "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1413
1414                     :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1415                     "a" (&c->redDither)
1416                     );
1417                 }
1418                 return;
1419             case PIX_FMT_BGR24:
1420                 __asm__ volatile(
1421                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1422                 "mov        %4, %%"REG_b"               \n\t"
1423                 "push %%"REG_BP"                        \n\t"
1424                 YSCALEYUV2RGB1(%%REGBP, %5)
1425                 "pxor    %%mm7, %%mm7                   \n\t"
1426                 WRITEBGR24(%%REGb, 8280(%5), %%REGBP)
1427                 "pop %%"REG_BP"                         \n\t"
1428                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1429
1430                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1431                 "a" (&c->redDither)
1432                 );
1433                 return;
1434             case PIX_FMT_RGB555:
1435                 __asm__ volatile(
1436                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1437                 "mov        %4, %%"REG_b"               \n\t"
1438                 "push %%"REG_BP"                        \n\t"
1439                 YSCALEYUV2RGB1(%%REGBP, %5)
1440                 "pxor    %%mm7, %%mm7                   \n\t"
1441                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1442 #ifdef DITHER1XBPP
1443                 "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
1444                 "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
1445                 "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
1446 #endif
1447                 WRITERGB15(%%REGb, 8280(%5), %%REGBP)
1448                 "pop %%"REG_BP"                         \n\t"
1449                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1450
1451                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1452                 "a" (&c->redDither)
1453                 );
1454                 return;
1455             case PIX_FMT_RGB565:
1456                 __asm__ volatile(
1457                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1458                 "mov        %4, %%"REG_b"               \n\t"
1459                 "push %%"REG_BP"                        \n\t"
1460                 YSCALEYUV2RGB1(%%REGBP, %5)
1461                 "pxor    %%mm7, %%mm7                   \n\t"
1462                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1463 #ifdef DITHER1XBPP
1464                 "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
1465                 "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
1466                 "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
1467 #endif
1468
1469                 WRITERGB16(%%REGb, 8280(%5), %%REGBP)
1470                 "pop %%"REG_BP"                         \n\t"
1471                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1472
1473                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1474                 "a" (&c->redDither)
1475                 );
1476                 return;
1477             case PIX_FMT_YUYV422:
1478                 __asm__ volatile(
1479                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1480                 "mov        %4, %%"REG_b"               \n\t"
1481                 "push %%"REG_BP"                        \n\t"
1482                 YSCALEYUV2PACKED1(%%REGBP, %5)
1483                 WRITEYUY2(%%REGb, 8280(%5), %%REGBP)
1484                 "pop %%"REG_BP"                         \n\t"
1485                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1486
1487                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1488                 "a" (&c->redDither)
1489                 );
1490                 return;
1491             }
1492         }
1493         else
1494         {
1495             switch(dstFormat)
1496             {
1497             case PIX_FMT_RGB32:
1498                 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){
1499                     __asm__ volatile(
1500                     "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1501                     "mov        %4, %%"REG_b"               \n\t"
1502                     "push %%"REG_BP"                        \n\t"
1503                     YSCALEYUV2RGB1b(%%REGBP, %5)
1504                     YSCALEYUV2RGB1_ALPHA(%%REGBP)
1505                     WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
1506                     "pop %%"REG_BP"                         \n\t"
1507                     "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1508
1509                     :: "c" (buf0), "d" (abuf0), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1510                     "a" (&c->redDither)
1511                     );
1512                 }else{
1513                     __asm__ volatile(
1514                     "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1515                     "mov        %4, %%"REG_b"               \n\t"
1516                     "push %%"REG_BP"                        \n\t"
1517                     YSCALEYUV2RGB1b(%%REGBP, %5)
1518                     "pcmpeqd %%mm7, %%mm7                   \n\t"
1519                     WRITEBGR32(%%REGb, 8280(%5), %%REGBP, %%mm2, %%mm4, %%mm5, %%mm7, %%mm0, %%mm1, %%mm3, %%mm6)
1520                     "pop %%"REG_BP"                         \n\t"
1521                     "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1522
1523                     :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1524                     "a" (&c->redDither)
1525                     );
1526                 }
1527                 return;
1528             case PIX_FMT_BGR24:
1529                 __asm__ volatile(
1530                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1531                 "mov        %4, %%"REG_b"               \n\t"
1532                 "push %%"REG_BP"                        \n\t"
1533                 YSCALEYUV2RGB1b(%%REGBP, %5)
1534                 "pxor    %%mm7, %%mm7                   \n\t"
1535                 WRITEBGR24(%%REGb, 8280(%5), %%REGBP)
1536                 "pop %%"REG_BP"                         \n\t"
1537                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1538
1539                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1540                 "a" (&c->redDither)
1541                 );
1542                 return;
1543             case PIX_FMT_RGB555:
1544                 __asm__ volatile(
1545                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1546                 "mov        %4, %%"REG_b"               \n\t"
1547                 "push %%"REG_BP"                        \n\t"
1548                 YSCALEYUV2RGB1b(%%REGBP, %5)
1549                 "pxor    %%mm7, %%mm7                   \n\t"
1550                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1551 #ifdef DITHER1XBPP
1552                 "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
1553                 "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
1554                 "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
1555 #endif
1556                 WRITERGB15(%%REGb, 8280(%5), %%REGBP)
1557                 "pop %%"REG_BP"                         \n\t"
1558                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1559
1560                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1561                 "a" (&c->redDither)
1562                 );
1563                 return;
1564             case PIX_FMT_RGB565:
1565                 __asm__ volatile(
1566                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1567                 "mov        %4, %%"REG_b"               \n\t"
1568                 "push %%"REG_BP"                        \n\t"
1569                 YSCALEYUV2RGB1b(%%REGBP, %5)
1570                 "pxor    %%mm7, %%mm7                   \n\t"
1571                 /* mm2=B, %%mm4=G, %%mm5=R, %%mm7=0 */
1572 #ifdef DITHER1XBPP
1573                 "paddusb "BLUE_DITHER"(%5), %%mm2      \n\t"
1574                 "paddusb "GREEN_DITHER"(%5), %%mm4      \n\t"
1575                 "paddusb "RED_DITHER"(%5), %%mm5      \n\t"
1576 #endif
1577
1578                 WRITERGB16(%%REGb, 8280(%5), %%REGBP)
1579                 "pop %%"REG_BP"                         \n\t"
1580                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1581
1582                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1583                 "a" (&c->redDither)
1584                 );
1585                 return;
1586             case PIX_FMT_YUYV422:
1587                 __asm__ volatile(
1588                 "mov %%"REG_b", "ESP_OFFSET"(%5)        \n\t"
1589                 "mov        %4, %%"REG_b"               \n\t"
1590                 "push %%"REG_BP"                        \n\t"
1591                 YSCALEYUV2PACKED1b(%%REGBP, %5)
1592                 WRITEYUY2(%%REGb, 8280(%5), %%REGBP)
1593                 "pop %%"REG_BP"                         \n\t"
1594                 "mov "ESP_OFFSET"(%5), %%"REG_b"        \n\t"
1595
1596                 :: "c" (buf0), "d" (buf1), "S" (uvbuf0), "D" (uvbuf1), "m" (dest),
1597                 "a" (&c->redDither)
1598                 );
1599                 return;
1600             }
1601         }
1602     }
1603 #endif /* HAVE_MMX */
1604     if (uvalpha < 2048)
1605     {
1606         YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGB1_C, YSCALE_YUV_2_PACKED1_C(void,0), YSCALE_YUV_2_GRAY16_1_C, YSCALE_YUV_2_MONO2_C)
1607     }else{
1608         YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGB1B_C, YSCALE_YUV_2_PACKED1B_C(void,0), YSCALE_YUV_2_GRAY16_1_C, YSCALE_YUV_2_MONO2_C)
1609     }
1610 }
1611
1612 //FIXME yuy2* can read up to 7 samples too much
1613
1614 static inline void RENAME(yuy2ToY)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1615 {
1616 #if HAVE_MMX
1617     __asm__ volatile(
1618     "movq "MANGLE(bm01010101)", %%mm2           \n\t"
1619     "mov                    %0, %%"REG_a"       \n\t"
1620     "1:                                         \n\t"
1621     "movq    (%1, %%"REG_a",2), %%mm0           \n\t"
1622     "movq   8(%1, %%"REG_a",2), %%mm1           \n\t"
1623     "pand                %%mm2, %%mm0           \n\t"
1624     "pand                %%mm2, %%mm1           \n\t"
1625     "packuswb            %%mm1, %%mm0           \n\t"
1626     "movq                %%mm0, (%2, %%"REG_a") \n\t"
1627     "add                    $8, %%"REG_a"       \n\t"
1628     " js                    1b                  \n\t"
1629     : : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst+width)
1630     : "%"REG_a
1631     );
1632 #else
1633     int i;
1634     for (i=0; i<width; i++)
1635         dst[i]= src[2*i];
1636 #endif
1637 }
1638
1639 static inline void RENAME(yuy2ToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused)
1640 {
1641 #if HAVE_MMX
1642     __asm__ volatile(
1643     "movq "MANGLE(bm01010101)", %%mm4           \n\t"
1644     "mov                    %0, %%"REG_a"       \n\t"
1645     "1:                                         \n\t"
1646     "movq    (%1, %%"REG_a",4), %%mm0           \n\t"
1647     "movq   8(%1, %%"REG_a",4), %%mm1           \n\t"
1648     "psrlw                  $8, %%mm0           \n\t"
1649     "psrlw                  $8, %%mm1           \n\t"
1650     "packuswb            %%mm1, %%mm0           \n\t"
1651     "movq                %%mm0, %%mm1           \n\t"
1652     "psrlw                  $8, %%mm0           \n\t"
1653     "pand                %%mm4, %%mm1           \n\t"
1654     "packuswb            %%mm0, %%mm0           \n\t"
1655     "packuswb            %%mm1, %%mm1           \n\t"
1656     "movd                %%mm0, (%3, %%"REG_a") \n\t"
1657     "movd                %%mm1, (%2, %%"REG_a") \n\t"
1658     "add                    $4, %%"REG_a"       \n\t"
1659     " js                    1b                  \n\t"
1660     : : "g" ((x86_reg)-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
1661     : "%"REG_a
1662     );
1663 #else
1664     int i;
1665     for (i=0; i<width; i++)
1666     {
1667         dstU[i]= src1[4*i + 1];
1668         dstV[i]= src1[4*i + 3];
1669     }
1670 #endif
1671     assert(src1 == src2);
1672 }
1673
1674 /* This is almost identical to the previous, end exists only because
1675  * yuy2ToY/UV)(dst, src+1, ...) would have 100% unaligned accesses. */
1676 static inline void RENAME(uyvyToY)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1677 {
1678 #if HAVE_MMX
1679     __asm__ volatile(
1680     "mov                  %0, %%"REG_a"         \n\t"
1681     "1:                                         \n\t"
1682     "movq  (%1, %%"REG_a",2), %%mm0             \n\t"
1683     "movq 8(%1, %%"REG_a",2), %%mm1             \n\t"
1684     "psrlw                $8, %%mm0             \n\t"
1685     "psrlw                $8, %%mm1             \n\t"
1686     "packuswb          %%mm1, %%mm0             \n\t"
1687     "movq              %%mm0, (%2, %%"REG_a")   \n\t"
1688     "add                  $8, %%"REG_a"         \n\t"
1689     " js                  1b                    \n\t"
1690     : : "g" ((x86_reg)-width), "r" (src+width*2), "r" (dst+width)
1691     : "%"REG_a
1692     );
1693 #else
1694     int i;
1695     for (i=0; i<width; i++)
1696         dst[i]= src[2*i+1];
1697 #endif
1698 }
1699
1700 static inline void RENAME(uyvyToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused)
1701 {
1702 #if HAVE_MMX
1703     __asm__ volatile(
1704     "movq "MANGLE(bm01010101)", %%mm4           \n\t"
1705     "mov                    %0, %%"REG_a"       \n\t"
1706     "1:                                         \n\t"
1707     "movq    (%1, %%"REG_a",4), %%mm0           \n\t"
1708     "movq   8(%1, %%"REG_a",4), %%mm1           \n\t"
1709     "pand                %%mm4, %%mm0           \n\t"
1710     "pand                %%mm4, %%mm1           \n\t"
1711     "packuswb            %%mm1, %%mm0           \n\t"
1712     "movq                %%mm0, %%mm1           \n\t"
1713     "psrlw                  $8, %%mm0           \n\t"
1714     "pand                %%mm4, %%mm1           \n\t"
1715     "packuswb            %%mm0, %%mm0           \n\t"
1716     "packuswb            %%mm1, %%mm1           \n\t"
1717     "movd                %%mm0, (%3, %%"REG_a") \n\t"
1718     "movd                %%mm1, (%2, %%"REG_a") \n\t"
1719     "add                    $4, %%"REG_a"       \n\t"
1720     " js                    1b                  \n\t"
1721     : : "g" ((x86_reg)-width), "r" (src1+width*4), "r" (dstU+width), "r" (dstV+width)
1722     : "%"REG_a
1723     );
1724 #else
1725     int i;
1726     for (i=0; i<width; i++)
1727     {
1728         dstU[i]= src1[4*i + 0];
1729         dstV[i]= src1[4*i + 2];
1730     }
1731 #endif
1732     assert(src1 == src2);
1733 }
1734
1735 #define BGR2Y(type, name, shr, shg, shb, maskr, maskg, maskb, RY, GY, BY, S)\
1736 static inline void RENAME(name)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)\
1737 {\
1738     int i;\
1739     for (i=0; i<width; i++)\
1740     {\
1741         int b= (((const type*)src)[i]>>shb)&maskb;\
1742         int g= (((const type*)src)[i]>>shg)&maskg;\
1743         int r= (((const type*)src)[i]>>shr)&maskr;\
1744 \
1745         dst[i]= (((RY)*r + (GY)*g + (BY)*b + (33<<((S)-1)))>>(S));\
1746     }\
1747 }
1748
1749 BGR2Y(uint32_t, bgr32ToY,16, 0, 0, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY   , BY<< 8, RGB2YUV_SHIFT+8)
1750 BGR2Y(uint32_t, rgb32ToY, 0, 0,16, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY   , BY<< 8, RGB2YUV_SHIFT+8)
1751 BGR2Y(uint16_t, bgr16ToY, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RY<<11, GY<<5, BY    , RGB2YUV_SHIFT+8)
1752 BGR2Y(uint16_t, bgr15ToY, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RY<<10, GY<<5, BY    , RGB2YUV_SHIFT+7)
1753 BGR2Y(uint16_t, rgb16ToY, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RY    , GY<<5, BY<<11, RGB2YUV_SHIFT+8)
1754 BGR2Y(uint16_t, rgb15ToY, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RY    , GY<<5, BY<<10, RGB2YUV_SHIFT+7)
1755
1756 static inline void RENAME(abgrToA)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused){
1757     int i;
1758     for (i=0; i<width; i++){
1759         dst[i]= src[4*i];
1760     }
1761 }
1762
1763 #define BGR2UV(type, name, shr, shg, shb, maska, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S)\
1764 static inline void RENAME(name)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1765 {\
1766     int i;\
1767     for (i=0; i<width; i++)\
1768     {\
1769         int b= (((const type*)src)[i]&maskb)>>shb;\
1770         int g= (((const type*)src)[i]&maskg)>>shg;\
1771         int r= (((const type*)src)[i]&maskr)>>shr;\
1772 \
1773         dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<((S)-1)))>>(S);\
1774         dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<((S)-1)))>>(S);\
1775     }\
1776 }\
1777 static inline void RENAME(name ## _half)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
1778 {\
1779     int i;\
1780     for (i=0; i<width; i++)\
1781     {\
1782         int pix0= ((const type*)src)[2*i+0];\
1783         int pix1= ((const type*)src)[2*i+1];\
1784         int g= (pix0&~(maskr|maskb))+(pix1&~(maskr|maskb));\
1785         int b= ((pix0+pix1-g)&(maskb|(2*maskb)))>>shb;\
1786         int r= ((pix0+pix1-g)&(maskr|(2*maskr)))>>shr;\
1787         g&= maskg|(2*maskg);\
1788 \
1789         g>>=shg;\
1790 \
1791         dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<(S)))>>((S)+1);\
1792         dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<(S)))>>((S)+1);\
1793     }\
1794 }
1795
1796 BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0xFF000000, 0xFF0000, 0xFF00,   0x00FF, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)
1797 BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0xFF000000,   0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU   , BU<< 8, RV<< 8, GV   , BV<< 8, RGB2YUV_SHIFT+8)
1798 BGR2UV(uint16_t, bgr16ToUV, 0, 0, 0,          0,   0x001F, 0x07E0,   0xF800, RU<<11, GU<<5, BU    , RV<<11, GV<<5, BV    , RGB2YUV_SHIFT+8)
1799 BGR2UV(uint16_t, bgr15ToUV, 0, 0, 0,          0,   0x001F, 0x03E0,   0x7C00, RU<<10, GU<<5, BU    , RV<<10, GV<<5, BV    , RGB2YUV_SHIFT+7)
1800 BGR2UV(uint16_t, rgb16ToUV, 0, 0, 0,          0,   0xF800, 0x07E0,   0x001F, RU    , GU<<5, BU<<11, RV    , GV<<5, BV<<11, RGB2YUV_SHIFT+8)
1801 BGR2UV(uint16_t, rgb15ToUV, 0, 0, 0,          0,   0x7C00, 0x03E0,   0x001F, RU    , GU<<5, BU<<10, RV    , GV<<5, BV<<10, RGB2YUV_SHIFT+7)
1802
1803 #if HAVE_MMX
1804 static inline void RENAME(bgr24ToY_mmx)(uint8_t *dst, const uint8_t *src, long width, int srcFormat)
1805 {
1806
1807     if(srcFormat == PIX_FMT_BGR24){
1808         __asm__ volatile(
1809             "movq  "MANGLE(ff_bgr24toY1Coeff)", %%mm5       \n\t"
1810             "movq  "MANGLE(ff_bgr24toY2Coeff)", %%mm6       \n\t"
1811             :
1812         );
1813     }else{
1814         __asm__ volatile(
1815             "movq  "MANGLE(ff_rgb24toY1Coeff)", %%mm5       \n\t"
1816             "movq  "MANGLE(ff_rgb24toY2Coeff)", %%mm6       \n\t"
1817             :
1818         );
1819     }
1820
1821     __asm__ volatile(
1822         "movq  "MANGLE(ff_bgr24toYOffset)", %%mm4   \n\t"
1823         "mov                        %2, %%"REG_a"   \n\t"
1824         "pxor                    %%mm7, %%mm7       \n\t"
1825         "1:                                         \n\t"
1826         PREFETCH"               64(%0)              \n\t"
1827         "movd                     (%0), %%mm0       \n\t"
1828         "movd                    2(%0), %%mm1       \n\t"
1829         "movd                    6(%0), %%mm2       \n\t"
1830         "movd                    8(%0), %%mm3       \n\t"
1831         "add                       $12, %0          \n\t"
1832         "punpcklbw               %%mm7, %%mm0       \n\t"
1833         "punpcklbw               %%mm7, %%mm1       \n\t"
1834         "punpcklbw               %%mm7, %%mm2       \n\t"
1835         "punpcklbw               %%mm7, %%mm3       \n\t"
1836         "pmaddwd                 %%mm5, %%mm0       \n\t"
1837         "pmaddwd                 %%mm6, %%mm1       \n\t"
1838         "pmaddwd                 %%mm5, %%mm2       \n\t"
1839         "pmaddwd                 %%mm6, %%mm3       \n\t"
1840         "paddd                   %%mm1, %%mm0       \n\t"
1841         "paddd                   %%mm3, %%mm2       \n\t"
1842         "paddd                   %%mm4, %%mm0       \n\t"
1843         "paddd                   %%mm4, %%mm2       \n\t"
1844         "psrad                     $15, %%mm0       \n\t"
1845         "psrad                     $15, %%mm2       \n\t"
1846         "packssdw                %%mm2, %%mm0       \n\t"
1847         "packuswb                %%mm0, %%mm0       \n\t"
1848         "movd                %%mm0, (%1, %%"REG_a") \n\t"
1849         "add                        $4, %%"REG_a"   \n\t"
1850         " js                        1b              \n\t"
1851     : "+r" (src)
1852     : "r" (dst+width), "g" ((x86_reg)-width)
1853     : "%"REG_a
1854     );
1855 }
1856
1857 static inline void RENAME(bgr24ToUV_mmx)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, long width, int srcFormat)
1858 {
1859     __asm__ volatile(
1860         "movq                    24+%4, %%mm6       \n\t"
1861         "mov                        %3, %%"REG_a"   \n\t"
1862         "pxor                    %%mm7, %%mm7       \n\t"
1863         "1:                                         \n\t"
1864         PREFETCH"               64(%0)              \n\t"
1865         "movd                     (%0), %%mm0       \n\t"
1866         "movd                    2(%0), %%mm1       \n\t"
1867         "punpcklbw               %%mm7, %%mm0       \n\t"
1868         "punpcklbw               %%mm7, %%mm1       \n\t"
1869         "movq                    %%mm0, %%mm2       \n\t"
1870         "movq                    %%mm1, %%mm3       \n\t"
1871         "pmaddwd                    %4, %%mm0       \n\t"
1872         "pmaddwd                  8+%4, %%mm1       \n\t"
1873         "pmaddwd                 16+%4, %%mm2       \n\t"
1874         "pmaddwd                 %%mm6, %%mm3       \n\t"
1875         "paddd                   %%mm1, %%mm0       \n\t"
1876         "paddd                   %%mm3, %%mm2       \n\t"
1877
1878         "movd                    6(%0), %%mm1       \n\t"
1879         "movd                    8(%0), %%mm3       \n\t"
1880         "add                       $12, %0          \n\t"
1881         "punpcklbw               %%mm7, %%mm1       \n\t"
1882         "punpcklbw               %%mm7, %%mm3       \n\t"
1883         "movq                    %%mm1, %%mm4       \n\t"
1884         "movq                    %%mm3, %%mm5       \n\t"
1885         "pmaddwd                    %4, %%mm1       \n\t"
1886         "pmaddwd                  8+%4, %%mm3       \n\t"
1887         "pmaddwd                 16+%4, %%mm4       \n\t"
1888         "pmaddwd                 %%mm6, %%mm5       \n\t"
1889         "paddd                   %%mm3, %%mm1       \n\t"
1890         "paddd                   %%mm5, %%mm4       \n\t"
1891
1892         "movq "MANGLE(ff_bgr24toUVOffset)", %%mm3       \n\t"
1893         "paddd                   %%mm3, %%mm0       \n\t"
1894         "paddd                   %%mm3, %%mm2       \n\t"
1895         "paddd                   %%mm3, %%mm1       \n\t"
1896         "paddd                   %%mm3, %%mm4       \n\t"
1897         "psrad                     $15, %%mm0       \n\t"
1898         "psrad                     $15, %%mm2       \n\t"
1899         "psrad                     $15, %%mm1       \n\t"
1900         "psrad                     $15, %%mm4       \n\t"
1901         "packssdw                %%mm1, %%mm0       \n\t"
1902         "packssdw                %%mm4, %%mm2       \n\t"
1903         "packuswb                %%mm0, %%mm0       \n\t"
1904         "packuswb                %%mm2, %%mm2       \n\t"
1905         "movd                %%mm0, (%1, %%"REG_a") \n\t"
1906         "movd                %%mm2, (%2, %%"REG_a") \n\t"
1907         "add                        $4, %%"REG_a"   \n\t"
1908         " js                        1b              \n\t"
1909     : "+r" (src)
1910     : "r" (dstU+width), "r" (dstV+width), "g" ((x86_reg)-width), "m"(ff_bgr24toUV[srcFormat == PIX_FMT_RGB24][0])
1911     : "%"REG_a
1912     );
1913 }
1914 #endif
1915
1916 static inline void RENAME(bgr24ToY)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1917 {
1918 #if HAVE_MMX
1919     RENAME(bgr24ToY_mmx)(dst, src, width, PIX_FMT_BGR24);
1920 #else
1921     int i;
1922     for (i=0; i<width; i++)
1923     {
1924         int b= src[i*3+0];
1925         int g= src[i*3+1];
1926         int r= src[i*3+2];
1927
1928         dst[i]= ((RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
1929     }
1930 #endif /* HAVE_MMX */
1931 }
1932
1933 static inline void RENAME(bgr24ToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused)
1934 {
1935 #if HAVE_MMX
1936     RENAME(bgr24ToUV_mmx)(dstU, dstV, src1, width, PIX_FMT_BGR24);
1937 #else
1938     int i;
1939     for (i=0; i<width; i++)
1940     {
1941         int b= src1[3*i + 0];
1942         int g= src1[3*i + 1];
1943         int r= src1[3*i + 2];
1944
1945         dstU[i]= (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT;
1946         dstV[i]= (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT;
1947     }
1948 #endif /* HAVE_MMX */
1949     assert(src1 == src2);
1950 }
1951
1952 static inline void RENAME(bgr24ToUV_half)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused)
1953 {
1954     int i;
1955     for (i=0; i<width; i++)
1956     {
1957         int b= src1[6*i + 0] + src1[6*i + 3];
1958         int g= src1[6*i + 1] + src1[6*i + 4];
1959         int r= src1[6*i + 2] + src1[6*i + 5];
1960
1961         dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1);
1962         dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1);
1963     }
1964     assert(src1 == src2);
1965 }
1966
1967 static inline void RENAME(rgb24ToY)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
1968 {
1969 #if HAVE_MMX
1970     RENAME(bgr24ToY_mmx)(dst, src, width, PIX_FMT_RGB24);
1971 #else
1972     int i;
1973     for (i=0; i<width; i++)
1974     {
1975         int r= src[i*3+0];
1976         int g= src[i*3+1];
1977         int b= src[i*3+2];
1978
1979         dst[i]= ((RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
1980     }
1981 #endif
1982 }
1983
1984 static inline void RENAME(rgb24ToUV)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused)
1985 {
1986 #if HAVE_MMX
1987     assert(src1==src2);
1988     RENAME(bgr24ToUV_mmx)(dstU, dstV, src1, width, PIX_FMT_RGB24);
1989 #else
1990     int i;
1991     assert(src1==src2);
1992     for (i=0; i<width; i++)
1993     {
1994         int r= src1[3*i + 0];
1995         int g= src1[3*i + 1];
1996         int b= src1[3*i + 2];
1997
1998         dstU[i]= (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT;
1999         dstV[i]= (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT;
2000     }
2001 #endif
2002 }
2003
2004 static inline void RENAME(rgb24ToUV_half)(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1, const uint8_t *src2, long width, uint32_t *unused)
2005 {
2006     int i;
2007     assert(src1==src2);
2008     for (i=0; i<width; i++)
2009     {
2010         int r= src1[6*i + 0] + src1[6*i + 3];
2011         int g= src1[6*i + 1] + src1[6*i + 4];
2012         int b= src1[6*i + 2] + src1[6*i + 5];
2013
2014         dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1);
2015         dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT))>>(RGB2YUV_SHIFT+1);
2016     }
2017 }
2018
2019
2020 static inline void RENAME(palToY)(uint8_t *dst, const uint8_t *src, long width, uint32_t *pal)
2021 {
2022     int i;
2023     for (i=0; i<width; i++)
2024     {
2025         int d= src[i];
2026
2027         dst[i]= pal[d] & 0xFF;
2028     }
2029 }
2030
2031 static inline void RENAME(palToUV)(uint8_t *dstU, uint8_t *dstV,
2032                                    const uint8_t *src1, const uint8_t *src2,
2033                                    long width, uint32_t *pal)
2034 {
2035     int i;
2036     assert(src1 == src2);
2037     for (i=0; i<width; i++)
2038     {
2039         int p= pal[src1[i]];
2040
2041         dstU[i]= p>>8;
2042         dstV[i]= p>>16;
2043     }
2044 }
2045
2046 static inline void RENAME(monowhite2Y)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
2047 {
2048     int i, j;
2049     for (i=0; i<width/8; i++){
2050         int d= ~src[i];
2051         for(j=0; j<8; j++)
2052             dst[8*i+j]= ((d>>(7-j))&1)*255;
2053     }
2054 }
2055
2056 static inline void RENAME(monoblack2Y)(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
2057 {
2058     int i, j;
2059     for (i=0; i<width/8; i++){
2060         int d= src[i];
2061         for(j=0; j<8; j++)
2062             dst[8*i+j]= ((d>>(7-j))&1)*255;
2063     }
2064 }
2065
2066 // bilinear / bicubic scaling
2067 static inline void RENAME(hScale)(int16_t *dst, int dstW, const uint8_t *src, int srcW, int xInc,
2068                                   const int16_t *filter, const int16_t *filterPos, long filterSize)
2069 {
2070 #if HAVE_MMX
2071     assert(filterSize % 4 == 0 && filterSize>0);
2072     if (filterSize==4) // Always true for upscaling, sometimes for down, too.
2073     {
2074         x86_reg counter= -2*dstW;
2075         filter-= counter*2;
2076         filterPos-= counter/2;
2077         dst-= counter/2;
2078         __asm__ volatile(
2079 #if defined(PIC)
2080         "push            %%"REG_b"              \n\t"
2081 #endif
2082         "pxor                %%mm7, %%mm7       \n\t"
2083         "push           %%"REG_BP"              \n\t" // we use 7 regs here ...
2084         "mov             %%"REG_a", %%"REG_BP"  \n\t"
2085         ASMALIGN(4)
2086         "1:                                     \n\t"
2087         "movzwl   (%2, %%"REG_BP"), %%eax       \n\t"
2088         "movzwl  2(%2, %%"REG_BP"), %%ebx       \n\t"
2089         "movq  (%1, %%"REG_BP", 4), %%mm1       \n\t"
2090         "movq 8(%1, %%"REG_BP", 4), %%mm3       \n\t"
2091         "movd      (%3, %%"REG_a"), %%mm0       \n\t"
2092         "movd      (%3, %%"REG_b"), %%mm2       \n\t"
2093         "punpcklbw           %%mm7, %%mm0       \n\t"
2094         "punpcklbw           %%mm7, %%mm2       \n\t"
2095         "pmaddwd             %%mm1, %%mm0       \n\t"
2096         "pmaddwd             %%mm2, %%mm3       \n\t"
2097         "movq                %%mm0, %%mm4       \n\t"
2098         "punpckldq           %%mm3, %%mm0       \n\t"
2099         "punpckhdq           %%mm3, %%mm4       \n\t"
2100         "paddd               %%mm4, %%mm0       \n\t"
2101         "psrad                  $7, %%mm0       \n\t"
2102         "packssdw            %%mm0, %%mm0       \n\t"
2103         "movd                %%mm0, (%4, %%"REG_BP")    \n\t"
2104         "add                    $4, %%"REG_BP"  \n\t"
2105         " jnc                   1b              \n\t"
2106
2107         "pop            %%"REG_BP"              \n\t"
2108 #if defined(PIC)
2109         "pop             %%"REG_b"              \n\t"
2110 #endif
2111         : "+a" (counter)
2112         : "c" (filter), "d" (filterPos), "S" (src), "D" (dst)
2113 #if !defined(PIC)
2114         : "%"REG_b
2115 #endif
2116         );
2117     }
2118     else if (filterSize==8)
2119     {
2120         x86_reg counter= -2*dstW;
2121         filter-= counter*4;
2122         filterPos-= counter/2;
2123         dst-= counter/2;
2124         __asm__ volatile(
2125 #if defined(PIC)
2126         "push             %%"REG_b"             \n\t"
2127 #endif
2128         "pxor                 %%mm7, %%mm7      \n\t"
2129         "push            %%"REG_BP"             \n\t" // we use 7 regs here ...
2130         "mov              %%"REG_a", %%"REG_BP" \n\t"
2131         ASMALIGN(4)
2132         "1:                                     \n\t"
2133         "movzwl    (%2, %%"REG_BP"), %%eax      \n\t"
2134         "movzwl   2(%2, %%"REG_BP"), %%ebx      \n\t"
2135         "movq   (%1, %%"REG_BP", 8), %%mm1      \n\t"
2136         "movq 16(%1, %%"REG_BP", 8), %%mm3      \n\t"
2137         "movd       (%3, %%"REG_a"), %%mm0      \n\t"
2138         "movd       (%3, %%"REG_b"), %%mm2      \n\t"
2139         "punpcklbw            %%mm7, %%mm0      \n\t"
2140         "punpcklbw            %%mm7, %%mm2      \n\t"
2141         "pmaddwd              %%mm1, %%mm0      \n\t"
2142         "pmaddwd              %%mm2, %%mm3      \n\t"
2143
2144         "movq  8(%1, %%"REG_BP", 8), %%mm1      \n\t"
2145         "movq 24(%1, %%"REG_BP", 8), %%mm5      \n\t"
2146         "movd      4(%3, %%"REG_a"), %%mm4      \n\t"
2147         "movd      4(%3, %%"REG_b"), %%mm2      \n\t"
2148         "punpcklbw            %%mm7, %%mm4      \n\t"
2149         "punpcklbw            %%mm7, %%mm2      \n\t"
2150         "pmaddwd              %%mm1, %%mm4      \n\t"
2151         "pmaddwd              %%mm2, %%mm5      \n\t"
2152         "paddd                %%mm4, %%mm0      \n\t"
2153         "paddd                %%mm5, %%mm3      \n\t"
2154         "movq                 %%mm0, %%mm4      \n\t"
2155         "punpckldq            %%mm3, %%mm0      \n\t"
2156         "punpckhdq            %%mm3, %%mm4      \n\t"
2157         "paddd                %%mm4, %%mm0      \n\t"
2158         "psrad                   $7, %%mm0      \n\t"
2159         "packssdw             %%mm0, %%mm0      \n\t"
2160         "movd                 %%mm0, (%4, %%"REG_BP")   \n\t"
2161         "add                     $4, %%"REG_BP" \n\t"
2162         " jnc                    1b             \n\t"
2163
2164         "pop             %%"REG_BP"             \n\t"
2165 #if defined(PIC)
2166         "pop              %%"REG_b"             \n\t"
2167 #endif
2168         : "+a" (counter)
2169         : "c" (filter), "d" (filterPos), "S" (src), "D" (dst)
2170 #if !defined(PIC)
2171         : "%"REG_b
2172 #endif
2173         );
2174     }
2175     else
2176     {
2177         uint8_t *offset = src+filterSize;
2178         x86_reg counter= -2*dstW;
2179         //filter-= counter*filterSize/2;
2180         filterPos-= counter/2;
2181         dst-= counter/2;
2182         __asm__ volatile(
2183         "pxor                  %%mm7, %%mm7     \n\t"
2184         ASMALIGN(4)
2185         "1:                                     \n\t"
2186         "mov                      %2, %%"REG_c" \n\t"
2187         "movzwl      (%%"REG_c", %0), %%eax     \n\t"
2188         "movzwl     2(%%"REG_c", %0), %%edx     \n\t"
2189         "mov                      %5, %%"REG_c" \n\t"
2190         "pxor                  %%mm4, %%mm4     \n\t"
2191         "pxor                  %%mm5, %%mm5     \n\t"
2192         "2:                                     \n\t"
2193         "movq                   (%1), %%mm1     \n\t"
2194         "movq               (%1, %6), %%mm3     \n\t"
2195         "movd (%%"REG_c", %%"REG_a"), %%mm0     \n\t"
2196         "movd (%%"REG_c", %%"REG_d"), %%mm2     \n\t"
2197         "punpcklbw             %%mm7, %%mm0     \n\t"
2198         "punpcklbw             %%mm7, %%mm2     \n\t"
2199         "pmaddwd               %%mm1, %%mm0     \n\t"
2200         "pmaddwd               %%mm2, %%mm3     \n\t"
2201         "paddd                 %%mm3, %%mm5     \n\t"
2202         "paddd                 %%mm0, %%mm4     \n\t"
2203         "add                      $8, %1        \n\t"
2204         "add                      $4, %%"REG_c" \n\t"
2205         "cmp                      %4, %%"REG_c" \n\t"
2206         " jb                      2b            \n\t"
2207         "add                      %6, %1        \n\t"
2208         "movq                  %%mm4, %%mm0     \n\t"
2209         "punpckldq             %%mm5, %%mm4     \n\t"
2210         "punpckhdq             %%mm5, %%mm0     \n\t"
2211         "paddd                 %%mm0, %%mm4     \n\t"
2212         "psrad                    $7, %%mm4     \n\t"
2213         "packssdw              %%mm4, %%mm4     \n\t"
2214         "mov                      %3, %%"REG_a" \n\t"
2215         "movd                  %%mm4, (%%"REG_a", %0)   \n\t"
2216         "add                      $4, %0        \n\t"
2217         " jnc                     1b            \n\t"
2218
2219         : "+r" (counter), "+r" (filter)
2220         : "m" (filterPos), "m" (dst), "m"(offset),
2221           "m" (src), "r" ((x86_reg)filterSize*2)
2222         : "%"REG_a, "%"REG_c, "%"REG_d
2223         );
2224     }
2225 #else
2226 #if HAVE_ALTIVEC
2227     hScale_altivec_real(dst, dstW, src, srcW, xInc, filter, filterPos, filterSize);
2228 #else
2229     int i;
2230     for (i=0; i<dstW; i++)
2231     {
2232         int j;
2233         int srcPos= filterPos[i];
2234         int val=0;
2235         //printf("filterPos: %d\n", filterPos[i]);
2236         for (j=0; j<filterSize; j++)
2237         {
2238             //printf("filter: %d, src: %d\n", filter[i], src[srcPos + j]);
2239             val += ((int)src[srcPos + j])*filter[filterSize*i + j];
2240         }
2241         //filter += hFilterSize;
2242         dst[i] = FFMIN(val>>7, (1<<15)-1); // the cubic equation does overflow ...
2243         //dst[i] = val>>7;
2244     }
2245 #endif /* HAVE_ALTIVEC */
2246 #endif /* HAVE_MMX */
2247 }
2248
2249 static inline void RENAME(hyscale_fast)(SwsContext *c, int16_t *dst,
2250                                         int dstWidth, const uint8_t *src, int srcW,
2251                                         int xInc)
2252 {
2253     int i;
2254     unsigned int xpos=0;
2255     for (i=0;i<dstWidth;i++)
2256     {
2257         register unsigned int xx=xpos>>16;
2258         register unsigned int xalpha=(xpos&0xFFFF)>>9;
2259         dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;
2260         xpos+=xInc;
2261     }
2262 }
2263
2264       // *** horizontal scale Y line to temp buffer
2265 static inline void RENAME(hyscale)(SwsContext *c, uint16_t *dst, long dstWidth, const uint8_t *src, int srcW, int xInc,
2266                                    int flags, const int16_t *hLumFilter,
2267                                    const int16_t *hLumFilterPos, int hLumFilterSize,
2268                                    int srcFormat, uint8_t *formatConvBuffer,
2269                                    uint32_t *pal, int isAlpha)
2270 {
2271     int32_t *mmx2FilterPos = c->lumMmx2FilterPos;
2272     int16_t *mmx2Filter = c->lumMmx2Filter;
2273     int canMMX2BeUsed = c->canMMX2BeUsed;
2274     void *funnyYCode = c->funnyYCode;
2275     void (*internal_func)(uint8_t *, const uint8_t *, long, uint32_t *) = isAlpha ? c->hascale_internal : c->hyscale_internal;
2276
2277     if (isAlpha) {
2278         if (srcFormat == PIX_FMT_RGB32   || srcFormat == PIX_FMT_BGR32  )
2279             src += 3;
2280     } else {
2281         if (srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1)
2282             src += ALT32_CORR;
2283     }
2284
2285     if (internal_func) {
2286         internal_func(formatConvBuffer, src, srcW, pal);
2287         src= formatConvBuffer;
2288     }
2289
2290 #if HAVE_MMX
2291     // Use the new MMX scaler if the MMX2 one can't be used (it is faster than the x86 ASM one).
2292     if (!(flags&SWS_FAST_BILINEAR) || (!canMMX2BeUsed))
2293 #else
2294     if (!(flags&SWS_FAST_BILINEAR))
2295 #endif
2296     {
2297         c->hScale(dst, dstWidth, src, srcW, xInc, hLumFilter, hLumFilterPos, hLumFilterSize);
2298     }
2299     else // fast bilinear upscale / crap downscale
2300     {
2301 #if ARCH_X86 && CONFIG_GPL
2302 #if HAVE_MMX2
2303         int i;
2304 #if defined(PIC)
2305         uint64_t ebxsave __attribute__((aligned(8)));
2306 #endif
2307         if (canMMX2BeUsed)
2308         {
2309             __asm__ volatile(
2310 #if defined(PIC)
2311             "mov               %%"REG_b", %5        \n\t"
2312 #endif
2313             "pxor                  %%mm7, %%mm7     \n\t"
2314             "mov                      %0, %%"REG_c" \n\t"
2315             "mov                      %1, %%"REG_D" \n\t"
2316             "mov                      %2, %%"REG_d" \n\t"
2317             "mov                      %3, %%"REG_b" \n\t"
2318             "xor               %%"REG_a", %%"REG_a" \n\t" // i
2319             PREFETCH"        (%%"REG_c")            \n\t"
2320             PREFETCH"      32(%%"REG_c")            \n\t"
2321             PREFETCH"      64(%%"REG_c")            \n\t"
2322
2323 #if ARCH_X86_64
2324
2325 #define FUNNY_Y_CODE \
2326             "movl            (%%"REG_b"), %%esi     \n\t"\
2327             "call                    *%4            \n\t"\
2328             "movl (%%"REG_b", %%"REG_a"), %%esi     \n\t"\
2329             "add               %%"REG_S", %%"REG_c" \n\t"\
2330             "add               %%"REG_a", %%"REG_D" \n\t"\
2331             "xor               %%"REG_a", %%"REG_a" \n\t"\
2332
2333 #else
2334
2335 #define FUNNY_Y_CODE \
2336             "movl (%%"REG_b"), %%esi        \n\t"\
2337             "call         *%4                       \n\t"\
2338             "addl (%%"REG_b", %%"REG_a"), %%"REG_c" \n\t"\
2339             "add               %%"REG_a", %%"REG_D" \n\t"\
2340             "xor               %%"REG_a", %%"REG_a" \n\t"\
2341
2342 #endif /* ARCH_X86_64 */
2343
2344 FUNNY_Y_CODE
2345 FUNNY_Y_CODE
2346 FUNNY_Y_CODE
2347 FUNNY_Y_CODE
2348 FUNNY_Y_CODE
2349 FUNNY_Y_CODE
2350 FUNNY_Y_CODE
2351 FUNNY_Y_CODE
2352
2353 #if defined(PIC)
2354             "mov                      %5, %%"REG_b" \n\t"
2355 #endif
2356             :: "m" (src), "m" (dst), "m" (mmx2Filter), "m" (mmx2FilterPos),
2357             "m" (funnyYCode)
2358 #if defined(PIC)
2359             ,"m" (ebxsave)
2360 #endif
2361             : "%"REG_a, "%"REG_c, "%"REG_d, "%"REG_S, "%"REG_D
2362 #if !defined(PIC)
2363             ,"%"REG_b
2364 #endif
2365             );
2366             for (i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--) dst[i] = src[srcW-1]*128;
2367         }
2368         else
2369         {
2370 #endif /* HAVE_MMX2 */
2371         x86_reg xInc_shr16 = xInc >> 16;
2372         uint16_t xInc_mask = xInc & 0xffff;
2373         //NO MMX just normal asm ...
2374         __asm__ volatile(
2375         "xor %%"REG_a", %%"REG_a"            \n\t" // i
2376         "xor %%"REG_d", %%"REG_d"            \n\t" // xx
2377         "xorl    %%ecx, %%ecx                \n\t" // 2*xalpha
2378         ASMALIGN(4)
2379         "1:                                  \n\t"
2380         "movzbl    (%0, %%"REG_d"), %%edi    \n\t" //src[xx]
2381         "movzbl   1(%0, %%"REG_d"), %%esi    \n\t" //src[xx+1]
2382         "subl    %%edi, %%esi                \n\t" //src[xx+1] - src[xx]
2383         "imull   %%ecx, %%esi                \n\t" //(src[xx+1] - src[xx])*2*xalpha
2384         "shll      $16, %%edi                \n\t"
2385         "addl    %%edi, %%esi                \n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)
2386         "mov        %1, %%"REG_D"            \n\t"
2387         "shrl       $9, %%esi                \n\t"
2388         "movw     %%si, (%%"REG_D", %%"REG_a", 2)   \n\t"
2389         "addw       %4, %%cx                 \n\t" //2*xalpha += xInc&0xFF
2390         "adc        %3, %%"REG_d"            \n\t" //xx+= xInc>>8 + carry
2391
2392         "movzbl    (%0, %%"REG_d"), %%edi    \n\t" //src[xx]
2393         "movzbl   1(%0, %%"REG_d"), %%esi    \n\t" //src[xx+1]
2394         "subl    %%edi, %%esi                \n\t" //src[xx+1] - src[xx]
2395         "imull   %%ecx, %%esi                \n\t" //(src[xx+1] - src[xx])*2*xalpha
2396         "shll      $16, %%edi                \n\t"
2397         "addl    %%edi, %%esi                \n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)
2398         "mov        %1, %%"REG_D"            \n\t"
2399         "shrl       $9, %%esi                \n\t"
2400         "movw     %%si, 2(%%"REG_D", %%"REG_a", 2)  \n\t"
2401         "addw       %4, %%cx                 \n\t" //2*xalpha += xInc&0xFF
2402         "adc        %3, %%"REG_d"            \n\t" //xx+= xInc>>8 + carry
2403
2404
2405         "add        $2, %%"REG_a"            \n\t"
2406         "cmp        %2, %%"REG_a"            \n\t"
2407         " jb        1b                       \n\t"
2408
2409
2410         :: "r" (src), "m" (dst), "m" (dstWidth), "m" (xInc_shr16), "m" (xInc_mask)
2411         : "%"REG_a, "%"REG_d, "%ecx", "%"REG_D, "%esi"
2412         );
2413 #if HAVE_MMX2
2414         } //if MMX2 can't be used
2415 #endif
2416 #else
2417         c->hyscale_fast(c, dst, dstWidth, src, srcW, xInc);
2418 #endif /* ARCH_X86 */
2419     }
2420
2421     if(!isAlpha && c->srcRange != c->dstRange && !(isRGB(c->dstFormat) || isBGR(c->dstFormat))){
2422         int i;
2423         //FIXME all pal and rgb srcFormats could do this convertion as well
2424         //FIXME all scalers more complex than bilinear could do half of this transform
2425         if(c->srcRange){
2426             for (i=0; i<dstWidth; i++)
2427                 dst[i]= (dst[i]*14071 + 33561947)>>14;
2428         }else{
2429             for (i=0; i<dstWidth; i++)
2430                 dst[i]= (FFMIN(dst[i],30189)*19077 - 39057361)>>14;
2431         }
2432     }
2433 }
2434
2435 static inline void RENAME(hcscale_fast)(SwsContext *c, int16_t *dst,
2436                                         int dstWidth, const uint8_t *src1,
2437                                         const uint8_t *src2, int srcW, int xInc)
2438 {
2439     int i;
2440     unsigned int xpos=0;
2441     for (i=0;i<dstWidth;i++)
2442     {
2443         register unsigned int xx=xpos>>16;
2444         register unsigned int xalpha=(xpos&0xFFFF)>>9;
2445         dst[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);
2446         dst[i+VOFW]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);
2447         /* slower
2448         dst[i]= (src1[xx]<<7) + (src1[xx+1] - src1[xx])*xalpha;
2449         dst[i+VOFW]=(src2[xx]<<7) + (src2[xx+1] - src2[xx])*xalpha;
2450         */
2451         xpos+=xInc;
2452     }
2453 }
2454
2455 inline static void RENAME(hcscale)(SwsContext *c, uint16_t *dst, long dstWidth, const uint8_t *src1, const uint8_t *src2,
2456                                    int srcW, int xInc, int flags, const int16_t *hChrFilter,
2457                                    const int16_t *hChrFilterPos, int hChrFilterSize,
2458                                    int srcFormat, uint8_t *formatConvBuffer,
2459                                    uint32_t *pal)
2460 {
2461     int32_t *mmx2FilterPos = c->chrMmx2FilterPos;
2462     int16_t *mmx2Filter = c->chrMmx2Filter;
2463     int canMMX2BeUsed = c->canMMX2BeUsed;
2464     void *funnyUVCode = c->funnyUVCode;
2465
2466     if (isGray(srcFormat) || srcFormat==PIX_FMT_MONOBLACK || srcFormat==PIX_FMT_MONOWHITE)
2467         return;
2468
2469     if (srcFormat==PIX_FMT_RGB32_1) {
2470         src1 += ALT32_CORR;
2471         src2 += ALT32_CORR;
2472     }
2473
2474     if (c->hcscale_internal) {
2475         c->hcscale_internal(formatConvBuffer, formatConvBuffer+VOFW, src1, src2, srcW, pal);
2476         src1= formatConvBuffer;
2477         src2= formatConvBuffer+VOFW;
2478     }
2479
2480 #if HAVE_MMX
2481     // Use the new MMX scaler if the MMX2 one can't be used (it is faster than the x86 ASM one).
2482     if (!(flags&SWS_FAST_BILINEAR) || (!canMMX2BeUsed))
2483 #else
2484     if (!(flags&SWS_FAST_BILINEAR))
2485 #endif
2486     {
2487         c->hScale(dst     , dstWidth, src1, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);
2488         c->hScale(dst+VOFW, dstWidth, src2, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);
2489     }
2490     else // fast bilinear upscale / crap downscale
2491     {
2492 #if ARCH_X86 && CONFIG_GPL
2493 #if HAVE_MMX2
2494         int i;
2495 #if defined(PIC)
2496         uint64_t ebxsave __attribute__((aligned(8)));
2497 #endif
2498         if (canMMX2BeUsed)
2499         {
2500             __asm__ volatile(
2501 #if defined(PIC)
2502             "mov          %%"REG_b", %6         \n\t"
2503 #endif
2504             "pxor             %%mm7, %%mm7      \n\t"
2505             "mov                 %0, %%"REG_c"  \n\t"
2506             "mov                 %1, %%"REG_D"  \n\t"
2507             "mov                 %2, %%"REG_d"  \n\t"
2508             "mov                 %3, %%"REG_b"  \n\t"
2509             "xor          %%"REG_a", %%"REG_a"  \n\t" // i
2510             PREFETCH"   (%%"REG_c")             \n\t"
2511             PREFETCH" 32(%%"REG_c")             \n\t"
2512             PREFETCH" 64(%%"REG_c")             \n\t"
2513
2514 #if ARCH_X86_64
2515
2516 #define FUNNY_UV_CODE \
2517             "movl       (%%"REG_b"), %%esi      \n\t"\
2518             "call               *%4             \n\t"\
2519             "movl (%%"REG_b", %%"REG_a"), %%esi \n\t"\
2520             "add          %%"REG_S", %%"REG_c"  \n\t"\
2521             "add          %%"REG_a", %%"REG_D"  \n\t"\
2522             "xor          %%"REG_a", %%"REG_a"  \n\t"\
2523
2524 #else
2525
2526 #define FUNNY_UV_CODE \
2527             "movl       (%%"REG_b"), %%esi      \n\t"\
2528             "call               *%4             \n\t"\
2529             "addl (%%"REG_b", %%"REG_a"), %%"REG_c" \n\t"\
2530             "add          %%"REG_a", %%"REG_D"  \n\t"\
2531             "xor          %%"REG_a", %%"REG_a"  \n\t"\
2532
2533 #endif /* ARCH_X86_64 */
2534
2535 FUNNY_UV_CODE
2536 FUNNY_UV_CODE
2537 FUNNY_UV_CODE
2538 FUNNY_UV_CODE
2539             "xor          %%"REG_a", %%"REG_a"  \n\t" // i
2540             "mov                 %5, %%"REG_c"  \n\t" // src
2541             "mov                 %1, %%"REG_D"  \n\t" // buf1
2542             "add              $"AV_STRINGIFY(VOF)", %%"REG_D"  \n\t"
2543             PREFETCH"   (%%"REG_c")             \n\t"
2544             PREFETCH" 32(%%"REG_c")             \n\t"
2545             PREFETCH" 64(%%"REG_c")             \n\t"
2546
2547 FUNNY_UV_CODE
2548 FUNNY_UV_CODE
2549 FUNNY_UV_CODE
2550 FUNNY_UV_CODE
2551
2552 #if defined(PIC)
2553             "mov %6, %%"REG_b"    \n\t"
2554 #endif
2555             :: "m" (src1), "m" (dst), "m" (mmx2Filter), "m" (mmx2FilterPos),
2556             "m" (funnyUVCode), "m" (src2)
2557 #if defined(PIC)
2558             ,"m" (ebxsave)
2559 #endif
2560             : "%"REG_a, "%"REG_c, "%"REG_d, "%"REG_S, "%"REG_D
2561 #if !defined(PIC)
2562              ,"%"REG_b
2563 #endif
2564             );
2565             for (i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--)
2566             {
2567                 //printf("%d %d %d\n", dstWidth, i, srcW);
2568                 dst[i] = src1[srcW-1]*128;
2569                 dst[i+VOFW] = src2[srcW-1]*128;
2570             }
2571         }
2572         else
2573         {
2574 #endif /* HAVE_MMX2 */
2575             x86_reg xInc_shr16 = (x86_reg) (xInc >> 16);
2576             uint16_t xInc_mask = xInc & 0xffff;
2577             __asm__ volatile(
2578             "xor %%"REG_a", %%"REG_a"               \n\t" // i
2579             "xor %%"REG_d", %%"REG_d"               \n\t" // xx
2580             "xorl    %%ecx, %%ecx                   \n\t" // 2*xalpha
2581             ASMALIGN(4)
2582             "1:                                     \n\t"
2583             "mov        %0, %%"REG_S"               \n\t"
2584             "movzbl  (%%"REG_S", %%"REG_d"), %%edi  \n\t" //src[xx]
2585             "movzbl 1(%%"REG_S", %%"REG_d"), %%esi  \n\t" //src[xx+1]
2586             "subl    %%edi, %%esi                   \n\t" //src[xx+1] - src[xx]
2587             "imull   %%ecx, %%esi                   \n\t" //(src[xx+1] - src[xx])*2*xalpha
2588             "shll      $16, %%edi                   \n\t"
2589             "addl    %%edi, %%esi                   \n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)
2590             "mov        %1, %%"REG_D"               \n\t"
2591             "shrl       $9, %%esi                   \n\t"
2592             "movw     %%si, (%%"REG_D", %%"REG_a", 2)   \n\t"
2593
2594             "movzbl    (%5, %%"REG_d"), %%edi       \n\t" //src[xx]
2595             "movzbl   1(%5, %%"REG_d"), %%esi       \n\t" //src[xx+1]
2596             "subl    %%edi, %%esi                   \n\t" //src[xx+1] - src[xx]
2597             "imull   %%ecx, %%esi                   \n\t" //(src[xx+1] - src[xx])*2*xalpha
2598             "shll      $16, %%edi                   \n\t"
2599             "addl    %%edi, %%esi                   \n\t" //src[xx+1]*2*xalpha + src[xx]*(1-2*xalpha)
2600             "mov        %1, %%"REG_D"               \n\t"
2601             "shrl       $9, %%esi                   \n\t"
2602             "movw     %%si, "AV_STRINGIFY(VOF)"(%%"REG_D", %%"REG_a", 2)   \n\t"
2603
2604             "addw       %4, %%cx                    \n\t" //2*xalpha += xInc&0xFF
2605             "adc        %3, %%"REG_d"               \n\t" //xx+= xInc>>8 + carry
2606             "add        $1, %%"REG_a"               \n\t"
2607             "cmp        %2, %%"REG_a"               \n\t"
2608             " jb        1b                          \n\t"
2609
2610 /* GCC 3.3 makes MPlayer crash on IA-32 machines when using "g" operand here,
2611    which is needed to support GCC 4.0. */
2612 #if ARCH_X86_64 && ((__GNUC__ > 3) || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
2613             :: "m" (src1), "m" (dst), "g" (dstWidth), "m" (xInc_shr16), "m" (xInc_mask),
2614 #else
2615             :: "m" (src1), "m" (dst), "m" (dstWidth), "m" (xInc_shr16), "m" (xInc_mask),
2616 #endif
2617             "r" (src2)
2618             : "%"REG_a, "%"REG_d, "%ecx", "%"REG_D, "%esi"
2619             );
2620 #if HAVE_MMX2
2621         } //if MMX2 can't be used
2622 #endif
2623 #else
2624         c->hcscale_fast(c, dst, dstWidth, src1, src2, srcW, xInc);
2625 #endif /* ARCH_X86 */
2626     }
2627     if(c->srcRange != c->dstRange && !(isRGB(c->dstFormat) || isBGR(c->dstFormat))){
2628         int i;
2629         //FIXME all pal and rgb srcFormats could do this convertion as well
2630         //FIXME all scalers more complex than bilinear could do half of this transform
2631         if(c->srcRange){
2632             for (i=0; i<dstWidth; i++){
2633                 dst[i     ]= (dst[i     ]*1799 + 4081085)>>11; //1469
2634                 dst[i+VOFW]= (dst[i+VOFW]*1799 + 4081085)>>11; //1469
2635             }
2636         }else{
2637             for (i=0; i<dstWidth; i++){
2638                 dst[i     ]= (FFMIN(dst[i     ],30775)*4663 - 9289992)>>12; //-264
2639                 dst[i+VOFW]= (FFMIN(dst[i+VOFW],30775)*4663 - 9289992)>>12; //-264
2640             }
2641         }
2642     }
2643 }
2644
2645 static int RENAME(swScale)(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2646                            int srcSliceH, uint8_t* dst[], int dstStride[]){
2647
2648     /* load a few things into local vars to make the code more readable? and faster */
2649     const int srcW= c->srcW;
2650     const int dstW= c->dstW;
2651     const int dstH= c->dstH;
2652     const int chrDstW= c->chrDstW;
2653     const int chrSrcW= c->chrSrcW;
2654     const int lumXInc= c->lumXInc;
2655     const int chrXInc= c->chrXInc;
2656     const int dstFormat= c->dstFormat;
2657     const int srcFormat= c->srcFormat;
2658     const int flags= c->flags;
2659     int16_t *vLumFilterPos= c->vLumFilterPos;
2660     int16_t *vChrFilterPos= c->vChrFilterPos;
2661     int16_t *hLumFilterPos= c->hLumFilterPos;
2662     int16_t *hChrFilterPos= c->hChrFilterPos;
2663     int16_t *vLumFilter= c->vLumFilter;
2664     int16_t *vChrFilter= c->vChrFilter;
2665     int16_t *hLumFilter= c->hLumFilter;
2666     int16_t *hChrFilter= c->hChrFilter;
2667     int32_t *lumMmxFilter= c->lumMmxFilter;
2668     int32_t *chrMmxFilter= c->chrMmxFilter;
2669     int32_t *alpMmxFilter= c->alpMmxFilter;
2670     const int vLumFilterSize= c->vLumFilterSize;
2671     const int vChrFilterSize= c->vChrFilterSize;
2672     const int hLumFilterSize= c->hLumFilterSize;
2673     const int hChrFilterSize= c->hChrFilterSize;
2674     int16_t **lumPixBuf= c->lumPixBuf;
2675     int16_t **chrPixBuf= c->chrPixBuf;
2676     int16_t **alpPixBuf= c->alpPixBuf;
2677     const int vLumBufSize= c->vLumBufSize;
2678     const int vChrBufSize= c->vChrBufSize;
2679     uint8_t *formatConvBuffer= c->formatConvBuffer;
2680     const int chrSrcSliceY= srcSliceY >> c->chrSrcVSubSample;
2681     const int chrSrcSliceH= -((-srcSliceH) >> c->chrSrcVSubSample);
2682     int lastDstY;
2683     uint32_t *pal=c->pal_yuv;
2684
2685     /* vars which will change and which we need to store back in the context */
2686     int dstY= c->dstY;
2687     int lumBufIndex= c->lumBufIndex;
2688     int chrBufIndex= c->chrBufIndex;
2689     int lastInLumBuf= c->lastInLumBuf;
2690     int lastInChrBuf= c->lastInChrBuf;
2691
2692     if (isPacked(c->srcFormat)){
2693         src[0]=
2694         src[1]=
2695         src[2]=
2696         src[3]= src[0];
2697         srcStride[0]=
2698         srcStride[1]=
2699         srcStride[2]=
2700         srcStride[3]= srcStride[0];
2701     }
2702     srcStride[1]<<= c->vChrDrop;
2703     srcStride[2]<<= c->vChrDrop;
2704
2705     //printf("swscale %X %X %X -> %X %X %X\n", (int)src[0], (int)src[1], (int)src[2],
2706     //       (int)dst[0], (int)dst[1], (int)dst[2]);
2707
2708 #if 0 //self test FIXME move to a vfilter or something
2709     {
2710     static volatile int i=0;
2711     i++;
2712     if (srcFormat==PIX_FMT_YUV420P && i==1 && srcSliceH>= c->srcH)
2713         selfTest(src, srcStride, c->srcW, c->srcH);
2714     i--;
2715     }
2716 #endif
2717
2718     //printf("sws Strides:%d %d %d -> %d %d %d\n", srcStride[0],srcStride[1],srcStride[2],
2719     //dstStride[0],dstStride[1],dstStride[2]);
2720
2721     if (dstStride[0]%8 !=0 || dstStride[1]%8 !=0 || dstStride[2]%8 !=0 || dstStride[3]%8 != 0)
2722     {
2723         static int warnedAlready=0; //FIXME move this into the context perhaps
2724         if (flags & SWS_PRINT_INFO && !warnedAlready)
2725         {
2726             av_log(c, AV_LOG_WARNING, "Warning: dstStride is not aligned!\n"
2727                    "         ->cannot do aligned memory accesses anymore\n");
2728             warnedAlready=1;
2729         }
2730     }
2731
2732     /* Note the user might start scaling the picture in the middle so this
2733        will not get executed. This is not really intended but works
2734        currently, so people might do it. */
2735     if (srcSliceY ==0){
2736         lumBufIndex=0;
2737         chrBufIndex=0;
2738         dstY=0;
2739         lastInLumBuf= -1;
2740         lastInChrBuf= -1;
2741     }
2742
2743     lastDstY= dstY;
2744
2745     for (;dstY < dstH; dstY++){
2746         unsigned char *dest =dst[0]+dstStride[0]*dstY;
2747         const int chrDstY= dstY>>c->chrDstVSubSample;
2748         unsigned char *uDest=dst[1]+dstStride[1]*chrDstY;
2749         unsigned char *vDest=dst[2]+dstStride[2]*chrDstY;
2750         unsigned char *aDest=(CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3]+dstStride[3]*dstY : NULL;
2751
2752         const int firstLumSrcY= vLumFilterPos[dstY]; //First line needed as input
2753         const int firstChrSrcY= vChrFilterPos[chrDstY]; //First line needed as input
2754         const int lastLumSrcY= firstLumSrcY + vLumFilterSize -1; // Last line needed as input
2755         const int lastChrSrcY= firstChrSrcY + vChrFilterSize -1; // Last line needed as input
2756
2757         //printf("dstY:%d dstH:%d firstLumSrcY:%d lastInLumBuf:%d vLumBufSize: %d vChrBufSize: %d slice: %d %d vLumFilterSize: %d firstChrSrcY: %d vChrFilterSize: %d c->chrSrcVSubSample: %d\n",
2758         // dstY, dstH, firstLumSrcY, lastInLumBuf, vLumBufSize, vChrBufSize, srcSliceY, srcSliceH, vLumFilterSize, firstChrSrcY, vChrFilterSize,  c->chrSrcVSubSample);
2759         //handle holes (FAST_BILINEAR & weird filters)
2760         if (firstLumSrcY > lastInLumBuf) lastInLumBuf= firstLumSrcY-1;
2761         if (firstChrSrcY > lastInChrBuf) lastInChrBuf= firstChrSrcY-1;
2762         //printf("%d %d %d\n", firstChrSrcY, lastInChrBuf, vChrBufSize);
2763         assert(firstLumSrcY >= lastInLumBuf - vLumBufSize + 1);
2764         assert(firstChrSrcY >= lastInChrBuf - vChrBufSize + 1);
2765
2766         // Do we have enough lines in this slice to output the dstY line
2767         if (lastLumSrcY < srcSliceY + srcSliceH && lastChrSrcY < -((-srcSliceY - srcSliceH)>>c->chrSrcVSubSample))
2768         {
2769             //Do horizontal scaling
2770             while(lastInLumBuf < lastLumSrcY)
2771             {
2772                 uint8_t *src1= src[0]+(lastInLumBuf + 1 - srcSliceY)*srcStride[0];
2773                 uint8_t *src2= src[3]+(lastInLumBuf + 1 - srcSliceY)*srcStride[3];
2774                 lumBufIndex++;
2775                 //printf("%d %d %d %d\n", lumBufIndex, vLumBufSize, lastInLumBuf,  lastLumSrcY);
2776                 assert(lumBufIndex < 2*vLumBufSize);
2777                 assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);
2778                 assert(lastInLumBuf + 1 - srcSliceY >= 0);
2779                 //printf("%d %d\n", lumBufIndex, vLumBufSize);
2780                 RENAME(hyscale)(c, lumPixBuf[ lumBufIndex ], dstW, src1, srcW, lumXInc,
2781                                 flags, hLumFilter, hLumFilterPos, hLumFilterSize,
2782                                 c->srcFormat, formatConvBuffer,
2783                                 pal, 0);
2784                 if (CONFIG_SWSCALE_ALPHA && alpPixBuf)
2785                     RENAME(hyscale)(c, alpPixBuf[ lumBufIndex ], dstW, src2, srcW, lumXInc,
2786                                     flags, hLumFilter, hLumFilterPos, hLumFilterSize,
2787                                     c->srcFormat, formatConvBuffer,
2788                                     pal, 1);
2789                 lastInLumBuf++;
2790             }
2791             while(lastInChrBuf < lastChrSrcY)
2792             {
2793                 uint8_t *src1= src[1]+(lastInChrBuf + 1 - chrSrcSliceY)*srcStride[1];
2794                 uint8_t *src2= src[2]+(lastInChrBuf + 1 - chrSrcSliceY)*srcStride[2];
2795                 chrBufIndex++;
2796                 assert(chrBufIndex < 2*vChrBufSize);
2797                 assert(lastInChrBuf + 1 - chrSrcSliceY < (chrSrcSliceH));
2798                 assert(lastInChrBuf + 1 - chrSrcSliceY >= 0);
2799                 //FIXME replace parameters through context struct (some at least)
2800
2801                 if (!(isGray(srcFormat) || isGray(dstFormat)))
2802                     RENAME(hcscale)(c, chrPixBuf[ chrBufIndex ], chrDstW, src1, src2, chrSrcW, chrXInc,
2803                                     flags, hChrFilter, hChrFilterPos, hChrFilterSize,
2804                                     c->srcFormat, formatConvBuffer,
2805                                     pal);
2806                 lastInChrBuf++;
2807             }
2808             //wrap buf index around to stay inside the ring buffer
2809             if (lumBufIndex >= vLumBufSize) lumBufIndex-= vLumBufSize;
2810             if (chrBufIndex >= vChrBufSize) chrBufIndex-= vChrBufSize;
2811         }
2812         else // not enough lines left in this slice -> load the rest in the buffer
2813         {
2814             /* printf("%d %d Last:%d %d LastInBuf:%d %d Index:%d %d Y:%d FSize: %d %d BSize: %d %d\n",
2815             firstChrSrcY,firstLumSrcY,lastChrSrcY,lastLumSrcY,
2816             lastInChrBuf,lastInLumBuf,chrBufIndex,lumBufIndex,dstY,vChrFilterSize,vLumFilterSize,
2817             vChrBufSize, vLumBufSize);*/
2818
2819             //Do horizontal scaling
2820             while(lastInLumBuf+1 < srcSliceY + srcSliceH)
2821             {
2822                 uint8_t *src1= src[0]+(lastInLumBuf + 1 - srcSliceY)*srcStride[0];
2823                 uint8_t *src2= src[3]+(lastInLumBuf + 1 - srcSliceY)*srcStride[3];
2824                 lumBufIndex++;
2825                 assert(lumBufIndex < 2*vLumBufSize);
2826                 assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);
2827                 assert(lastInLumBuf + 1 - srcSliceY >= 0);
2828                 RENAME(hyscale)(c, lumPixBuf[ lumBufIndex ], dstW, src1, srcW, lumXInc,
2829                                 flags, hLumFilter, hLumFilterPos, hLumFilterSize,
2830                                 c->srcFormat, formatConvBuffer,
2831                                 pal, 0);
2832                 if (CONFIG_SWSCALE_ALPHA && alpPixBuf)
2833                     RENAME(hyscale)(c, alpPixBuf[ lumBufIndex ], dstW, src2, srcW, lumXInc,
2834                                     flags, hLumFilter, hLumFilterPos, hLumFilterSize,
2835                                     c->srcFormat, formatConvBuffer,
2836                                     pal, 1);
2837                 lastInLumBuf++;
2838             }
2839             while(lastInChrBuf+1 < (chrSrcSliceY + chrSrcSliceH))
2840             {
2841                 uint8_t *src1= src[1]+(lastInChrBuf + 1 - chrSrcSliceY)*srcStride[1];
2842                 uint8_t *src2= src[2]+(lastInChrBuf + 1 - chrSrcSliceY)*srcStride[2];
2843                 chrBufIndex++;
2844                 assert(chrBufIndex < 2*vChrBufSize);
2845                 assert(lastInChrBuf + 1 - chrSrcSliceY < chrSrcSliceH);
2846                 assert(lastInChrBuf + 1 - chrSrcSliceY >= 0);
2847
2848                 if (!(isGray(srcFormat) || isGray(dstFormat)))
2849                     RENAME(hcscale)(c, chrPixBuf[ chrBufIndex ], chrDstW, src1, src2, chrSrcW, chrXInc,
2850                             flags, hChrFilter, hChrFilterPos, hChrFilterSize,
2851                             c->srcFormat, formatConvBuffer,
2852                             pal);
2853                 lastInChrBuf++;
2854             }
2855             //wrap buf index around to stay inside the ring buffer
2856             if (lumBufIndex >= vLumBufSize) lumBufIndex-= vLumBufSize;
2857             if (chrBufIndex >= vChrBufSize) chrBufIndex-= vChrBufSize;
2858             break; //we can't output a dstY line so let's try with the next slice
2859         }
2860
2861 #if HAVE_MMX
2862         c->blueDither= ff_dither8[dstY&1];
2863         if (c->dstFormat == PIX_FMT_RGB555 || c->dstFormat == PIX_FMT_BGR555)
2864             c->greenDither= ff_dither8[dstY&1];
2865         else
2866             c->greenDither= ff_dither4[dstY&1];
2867         c->redDither= ff_dither8[(dstY+1)&1];
2868 #endif
2869         if (dstY < dstH-2)
2870         {
2871             const int16_t **lumSrcPtr= (const int16_t **) lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
2872             const int16_t **chrSrcPtr= (const int16_t **) chrPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
2873             const int16_t **alpSrcPtr= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? (const int16_t **) alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;
2874 #if HAVE_MMX
2875             int i;
2876         if (flags & SWS_ACCURATE_RND){
2877             int s= APCK_SIZE / 8;
2878             for (i=0; i<vLumFilterSize; i+=2){
2879                 *(void**)&lumMmxFilter[s*i              ]= lumSrcPtr[i  ];
2880                 *(void**)&lumMmxFilter[s*i+APCK_PTR2/4  ]= lumSrcPtr[i+(vLumFilterSize>1)];
2881                           lumMmxFilter[s*i+APCK_COEF/4  ]=
2882                           lumMmxFilter[s*i+APCK_COEF/4+1]= vLumFilter[dstY*vLumFilterSize + i    ]
2883                     + (vLumFilterSize>1 ? vLumFilter[dstY*vLumFilterSize + i + 1]<<16 : 0);
2884                 if (CONFIG_SWSCALE_ALPHA && alpPixBuf){
2885                     *(void**)&alpMmxFilter[s*i              ]= alpSrcPtr[i  ];
2886                     *(void**)&alpMmxFilter[s*i+APCK_PTR2/4  ]= alpSrcPtr[i+(vLumFilterSize>1)];
2887                               alpMmxFilter[s*i+APCK_COEF/4  ]=
2888                               alpMmxFilter[s*i+APCK_COEF/4+1]= lumMmxFilter[s*i+APCK_COEF/4  ];
2889                 }
2890             }
2891             for (i=0; i<vChrFilterSize; i+=2){
2892                 *(void**)&chrMmxFilter[s*i              ]= chrSrcPtr[i  ];
2893                 *(void**)&chrMmxFilter[s*i+APCK_PTR2/4  ]= chrSrcPtr[i+(vChrFilterSize>1)];
2894                           chrMmxFilter[s*i+APCK_COEF/4  ]=
2895                           chrMmxFilter[s*i+APCK_COEF/4+1]= vChrFilter[chrDstY*vChrFilterSize + i    ]
2896                     + (vChrFilterSize>1 ? vChrFilter[chrDstY*vChrFilterSize + i + 1]<<16 : 0);
2897             }
2898         }else{
2899             for (i=0; i<vLumFilterSize; i++)
2900             {
2901                 lumMmxFilter[4*i+0]= (int32_t)lumSrcPtr[i];
2902                 lumMmxFilter[4*i+1]= (uint64_t)lumSrcPtr[i] >> 32;
2903                 lumMmxFilter[4*i+2]=
2904                 lumMmxFilter[4*i+3]=
2905                     ((uint16_t)vLumFilter[dstY*vLumFilterSize + i])*0x10001;
2906                 if (CONFIG_SWSCALE_ALPHA && alpPixBuf){
2907                     alpMmxFilter[4*i+0]= (int32_t)alpSrcPtr[i];
2908                     alpMmxFilter[4*i+1]= (uint64_t)alpSrcPtr[i] >> 32;
2909                     alpMmxFilter[4*i+2]=
2910                     alpMmxFilter[4*i+3]= lumMmxFilter[4*i+2];
2911                 }
2912             }
2913             for (i=0; i<vChrFilterSize; i++)
2914             {
2915                 chrMmxFilter[4*i+0]= (int32_t)chrSrcPtr[i];
2916                 chrMmxFilter[4*i+1]= (uint64_t)chrSrcPtr[i] >> 32;
2917                 chrMmxFilter[4*i+2]=
2918                 chrMmxFilter[4*i+3]=
2919                     ((uint16_t)vChrFilter[chrDstY*vChrFilterSize + i])*0x10001;
2920             }
2921         }
2922 #endif
2923             if (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21){
2924                 const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
2925                 if (dstY&chrSkipMask) uDest= NULL; //FIXME split functions in lumi / chromi
2926                 c->yuv2nv12X(c,
2927                     vLumFilter+dstY*vLumFilterSize   , lumSrcPtr, vLumFilterSize,
2928                     vChrFilter+chrDstY*vChrFilterSize, chrSrcPtr, vChrFilterSize,
2929                     dest, uDest, dstW, chrDstW, dstFormat);
2930             }
2931             else if (isPlanarYUV(dstFormat) || dstFormat==PIX_FMT_GRAY8) //YV12 like
2932             {
2933                 const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
2934                 if ((dstY&chrSkipMask) || isGray(dstFormat)) uDest=vDest= NULL; //FIXME split functions in lumi / chromi
2935                 if (vLumFilterSize == 1 && vChrFilterSize == 1) // unscaled YV12
2936                 {
2937                     int16_t *lumBuf = lumPixBuf[0];
2938                     int16_t *chrBuf= chrPixBuf[0];
2939                     int16_t *alpBuf= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? alpPixBuf[0] : NULL;
2940                     c->yuv2yuv1(c, lumBuf, chrBuf, alpBuf, dest, uDest, vDest, aDest, dstW, chrDstW);
2941                 }
2942                 else //General YV12
2943                 {
2944                     c->yuv2yuvX(c,
2945                         vLumFilter+dstY*vLumFilterSize   , lumSrcPtr, vLumFilterSize,
2946                         vChrFilter+chrDstY*vChrFilterSize, chrSrcPtr, vChrFilterSize,
2947                         alpSrcPtr, dest, uDest, vDest, aDest, dstW, chrDstW);
2948                 }
2949             }
2950             else
2951             {
2952                 assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2);
2953                 assert(chrSrcPtr + vChrFilterSize - 1 < chrPixBuf + vChrBufSize*2);
2954                 if (vLumFilterSize == 1 && vChrFilterSize == 2) //unscaled RGB
2955                 {
2956                     int chrAlpha= vChrFilter[2*dstY+1];
2957                     if(flags & SWS_FULL_CHR_H_INT){
2958                         yuv2rgbXinC_full(c, //FIXME write a packed1_full function
2959                             vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
2960                             vChrFilter+dstY*vChrFilterSize, chrSrcPtr, vChrFilterSize,
2961                             alpSrcPtr, dest, dstW, dstY);
2962                     }else{
2963                         c->yuv2packed1(c, *lumSrcPtr, *chrSrcPtr, *(chrSrcPtr+1),
2964                             alpPixBuf ? *alpSrcPtr : NULL,
2965                             dest, dstW, chrAlpha, dstFormat, flags, dstY);
2966                    &nbs