eac3dec: get rid of unnecessary left shifts in 16-bit * 24-bit
[libav.git] / libswscale / swscale.c
CommitLineData
fe8054c0 1/*
d026b45e
DB
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
b19bcbaa 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
d026b45e 19 *
807e0c66
LA
20 * the C code (not assembly, mmx, ...) of this file can be used
21 * under the LGPL license too
d026b45e 22 */
783e9cc9 23
28bf81c9 24/*
9990e426 25 supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR32_1, BGR24, BGR16, BGR15, RGB32, RGB32_1, RGB24, Y8/Y800, YVU9/IF09, PAL8
caeaabe7 26 supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
e09d12f4 27 {BGR,RGB}{1,4,8,15,16} support dithering
6a4970ab 28
e09d12f4
MN
29 unscaled special converters (YV12=I420=IYUV, Y800=Y8)
30 YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
31 x -> x
32 YUV9 -> YV12
33 YUV9/YV12 -> Y800
34 Y800 -> YUV9/YV12
b935781b
MN
35 BGR24 -> BGR32 & RGB24 -> RGB32
36 BGR32 -> BGR24 & RGB32 -> RGB24
4bb3fa5e 37 BGR15 -> BGR16
b935781b
MN
38*/
39
6a4970ab 40/*
a6f6b237 41tested special converters (most are tested actually, but I did not write it down ...)
e09d12f4 42 YV12 -> BGR16
b935781b 43 YV12 -> YV12
4bb3fa5e 44 BGR15 -> BGR16
1e1c4fe9 45 BGR16 -> BGR16
e09d12f4 46 YVU9 -> YV12
b935781b
MN
47
48untested special converters
f40c7dbb 49 YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be OK)
1e1c4fe9
MN
50 YV12/I420 -> YV12/I420
51 YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
b935781b
MN
52 BGR24 -> BGR32 & RGB24 -> RGB32
53 BGR32 -> BGR24 & RGB32 -> RGB24
ec22603f 54 BGR24 -> YV12
28bf81c9
MN
55*/
56
d63a2cb1 57#define _SVID_SOURCE //needed for MAP_ANONYMOUS
d3f41512 58#include <inttypes.h>
dda87e9f 59#include <string.h>
077ea8a7 60#include <math.h>
c1b0bfb4 61#include <stdio.h>
171d7d78 62#include <unistd.h>
b2d374c9 63#include "config.h"
81b7c056 64#include <assert.h>
b63f641e 65#if HAVE_SYS_MMAN_H
38d5c282 66#include <sys/mman.h>
113ef149
RD
67#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
68#define MAP_ANONYMOUS MAP_ANON
69#endif
38d5c282 70#endif
dd35beb2
RP
71#if HAVE_VIRTUALALLOC
72#define WIN32_LEAN_AND_MEAN
73#include <windows.h>
74#endif
d604bab9 75#include "swscale.h"
5427e242 76#include "swscale_internal.h"
37079906 77#include "rgb2rgb.h"
83da2c6f
DB
78#include "libavutil/x86_cpu.h"
79#include "libavutil/bswap.h"
0d9f3d85 80
b3e03fa7
SS
81unsigned swscale_version(void)
82{
83 return LIBSWSCALE_VERSION_INT;
84}
85
541c4eb9 86#undef MOVNTQ
7d7f78b5 87#undef PAVGB
d3f41512 88
783e9cc9 89//#undef HAVE_MMX2
f4406ec1 90//#define HAVE_AMD3DNOW
d3f41512 91//#undef HAVE_MMX
783e9cc9 92//#undef ARCH_X86
2ba1bff0 93//#define WORDS_BIGENDIAN
d604bab9 94#define DITHER1XBPP
d3f41512 95
f40c7dbb 96#define FAST_BGR2YV12 // use 7 bit coefficients instead of 15 bit
ac6a2e45 97
f40c7dbb 98#define RET 0xC3 //near return opcode for x86
c1b0bfb4 99
28bf81c9
MN
100#ifdef M_PI
101#define PI M_PI
102#else
103#define PI 3.14159265358979323846
104#endif
c1b0bfb4 105
9d9de37d
IP
106#define isSupportedIn(x) ( \
107 (x)==PIX_FMT_YUV420P \
79973335 108 || (x)==PIX_FMT_YUVA420P \
9d9de37d
IP
109 || (x)==PIX_FMT_YUYV422 \
110 || (x)==PIX_FMT_UYVY422 \
111 || (x)==PIX_FMT_RGB32 \
9990e426 112 || (x)==PIX_FMT_RGB32_1 \
9d9de37d
IP
113 || (x)==PIX_FMT_BGR24 \
114 || (x)==PIX_FMT_BGR565 \
115 || (x)==PIX_FMT_BGR555 \
116 || (x)==PIX_FMT_BGR32 \
9990e426 117 || (x)==PIX_FMT_BGR32_1 \
9d9de37d
IP
118 || (x)==PIX_FMT_RGB24 \
119 || (x)==PIX_FMT_RGB565 \
120 || (x)==PIX_FMT_RGB555 \
121 || (x)==PIX_FMT_GRAY8 \
122 || (x)==PIX_FMT_YUV410P \
6c80eb16 123 || (x)==PIX_FMT_YUV440P \
9d9de37d
IP
124 || (x)==PIX_FMT_GRAY16BE \
125 || (x)==PIX_FMT_GRAY16LE \
126 || (x)==PIX_FMT_YUV444P \
127 || (x)==PIX_FMT_YUV422P \
128 || (x)==PIX_FMT_YUV411P \
129 || (x)==PIX_FMT_PAL8 \
130 || (x)==PIX_FMT_BGR8 \
131 || (x)==PIX_FMT_RGB8 \
132 || (x)==PIX_FMT_BGR4_BYTE \
133 || (x)==PIX_FMT_RGB4_BYTE \
9ba7fe6d 134 || (x)==PIX_FMT_YUV440P \
3d05e078
MN
135 || (x)==PIX_FMT_MONOWHITE \
136 || (x)==PIX_FMT_MONOBLACK \
de1275d5
MN
137 || (x)==PIX_FMT_YUV420PLE \
138 || (x)==PIX_FMT_YUV422PLE \
139 || (x)==PIX_FMT_YUV444PLE \
140 || (x)==PIX_FMT_YUV420PBE \
141 || (x)==PIX_FMT_YUV422PBE \
142 || (x)==PIX_FMT_YUV444PBE \
9d9de37d
IP
143 )
144#define isSupportedOut(x) ( \
145 (x)==PIX_FMT_YUV420P \
6268f55b 146 || (x)==PIX_FMT_YUVA420P \
9d9de37d
IP
147 || (x)==PIX_FMT_YUYV422 \
148 || (x)==PIX_FMT_UYVY422 \
149 || (x)==PIX_FMT_YUV444P \
150 || (x)==PIX_FMT_YUV422P \
151 || (x)==PIX_FMT_YUV411P \
152 || isRGB(x) \
153 || isBGR(x) \
154 || (x)==PIX_FMT_NV12 \
155 || (x)==PIX_FMT_NV21 \
156 || (x)==PIX_FMT_GRAY16BE \
157 || (x)==PIX_FMT_GRAY16LE \
158 || (x)==PIX_FMT_GRAY8 \
159 || (x)==PIX_FMT_YUV410P \
6c80eb16 160 || (x)==PIX_FMT_YUV440P \
de1275d5
MN
161 || (x)==PIX_FMT_YUV420PLE \
162 || (x)==PIX_FMT_YUV422PLE \
163 || (x)==PIX_FMT_YUV444PLE \
164 || (x)==PIX_FMT_YUV420PBE \
165 || (x)==PIX_FMT_YUV422PBE \
166 || (x)==PIX_FMT_YUV444PBE \
9d9de37d
IP
167 )
168#define isPacked(x) ( \
169 (x)==PIX_FMT_PAL8 \
170 || (x)==PIX_FMT_YUYV422 \
171 || (x)==PIX_FMT_UYVY422 \
172 || isRGB(x) \
173 || isBGR(x) \
174 )
49004617
VS
175#define usePal(x) ( \
176 (x)==PIX_FMT_PAL8 \
177 || (x)==PIX_FMT_BGR4_BYTE \
178 || (x)==PIX_FMT_RGB4_BYTE \
179 || (x)==PIX_FMT_BGR8 \
180 || (x)==PIX_FMT_RGB8 \
181 )
6ff0ad6b 182
6b79dbce 183#define RGB2YUV_SHIFT 15
7b5d7b9e
MN
184#define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
185#define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
186#define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
187#define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))
188#define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))
189#define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))
190#define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))
191#define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
192#define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))
6c7506de 193
fa58ba15 194extern const int32_t ff_yuv2rgb_coeffs[8][4];
0481412a 195
0f5d4aa8
MN
196static const double rgb2yuv_table[8][9]={
197 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
198 {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
199 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
200 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
201 {0.59 , 0.11 , 0.30 , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC
202 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
203 {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //SMPTE 170M
204 {0.701 , 0.087 , 0.212 , -0.384, 0.5 -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M
205};
206
783e9cc9
MN
207/*
208NOTES
d604bab9 209Special versions: fast Y 1:1 scaling (no interpolation in y direction)
31190492 210
783e9cc9 211TODO
bd7c6fd5 212more intelligent misalignment avoidance for the horizontal scaler
c1b0bfb4 213write special vertical cubic upscale version
f40c7dbb
DB
214optimize C code (YV12 / minmax)
215add support for packed pixel YUV input & output
6ff0ad6b 216add support for Y8 output
f40c7dbb 217optimize BGR24 & BGR32
ff7ba856 218add BGR4 output support
1e621b18 219write special BGR->BGR scaler
783e9cc9 220*/
31190492 221
b63f641e 222#if ARCH_X86 && CONFIG_GPL
d334c7c2
RD
223DECLARE_ASM_CONST(8, uint64_t, bF8)= 0xF8F8F8F8F8F8F8F8LL;
224DECLARE_ASM_CONST(8, uint64_t, bFC)= 0xFCFCFCFCFCFCFCFCLL;
225DECLARE_ASM_CONST(8, uint64_t, w10)= 0x0010001000100010LL;
226DECLARE_ASM_CONST(8, uint64_t, w02)= 0x0002000200020002LL;
227DECLARE_ASM_CONST(8, uint64_t, bm00001111)=0x00000000FFFFFFFFLL;
228DECLARE_ASM_CONST(8, uint64_t, bm00000111)=0x0000000000FFFFFFLL;
229DECLARE_ASM_CONST(8, uint64_t, bm11111000)=0xFFFFFFFFFF000000LL;
230DECLARE_ASM_CONST(8, uint64_t, bm01010101)=0x00FF00FF00FF00FFLL;
d604bab9 231
0cb25594 232const DECLARE_ALIGNED(8, uint64_t, ff_dither4[2]) = {
221b804f
DB
233 0x0103010301030103LL,
234 0x0200020002000200LL,};
d8fa3c54 235
0cb25594 236const DECLARE_ALIGNED(8, uint64_t, ff_dither8[2]) = {
221b804f
DB
237 0x0602060206020602LL,
238 0x0004000400040004LL,};
d604bab9 239
d334c7c2
RD
240DECLARE_ASM_CONST(8, uint64_t, b16Mask)= 0x001F001F001F001FLL;
241DECLARE_ASM_CONST(8, uint64_t, g16Mask)= 0x07E007E007E007E0LL;
242DECLARE_ASM_CONST(8, uint64_t, r16Mask)= 0xF800F800F800F800LL;
243DECLARE_ASM_CONST(8, uint64_t, b15Mask)= 0x001F001F001F001FLL;
244DECLARE_ASM_CONST(8, uint64_t, g15Mask)= 0x03E003E003E003E0LL;
245DECLARE_ASM_CONST(8, uint64_t, r15Mask)= 0x7C007C007C007C00LL;
d604bab9 246
5802683a
RD
247DECLARE_ALIGNED(8, const uint64_t, ff_M24A) = 0x00FF0000FF0000FFLL;
248DECLARE_ALIGNED(8, const uint64_t, ff_M24B) = 0xFF0000FF0000FF00LL;
249DECLARE_ALIGNED(8, const uint64_t, ff_M24C) = 0x0000FF0000FF0000LL;
99d2cb72 250
ac6a2e45 251#ifdef FAST_BGR2YV12
5802683a
RD
252DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000000210041000DULL;
253DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000FFEEFFDC0038ULL;
254DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00000038FFD2FFF8ULL;
ac6a2e45 255#else
5802683a
RD
256DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000020E540830C8BULL;
257DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000ED0FDAC23831ULL;
258DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00003831D0E6F6EAULL;
69796008 259#endif /* FAST_BGR2YV12 */
5802683a
RD
260DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YOffset) = 0x1010101010101010ULL;
261DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UVOffset) = 0x8080808080808080ULL;
262DECLARE_ALIGNED(8, const uint64_t, ff_w1111) = 0x0001000100010001ULL;
dfb09bd1 263
b5c44b1a
DP
264DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY1Coeff) = 0x0C88000040870C88ULL;
265DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY2Coeff) = 0x20DE4087000020DEULL;
266DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY1Coeff) = 0x20DE0000408720DEULL;
267DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY2Coeff) = 0x0C88408700000C88ULL;
268DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toYOffset) = 0x0008400000084000ULL;
dfb09bd1 269
b5c44b1a 270DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUV[2][4]) = {
dfb09bd1
MN
271 {0x38380000DAC83838ULL, 0xECFFDAC80000ECFFULL, 0xF6E40000D0E3F6E4ULL, 0x3838D0E300003838ULL},
272 {0xECFF0000DAC8ECFFULL, 0x3838DAC800003838ULL, 0x38380000D0E33838ULL, 0xF6E4D0E30000F6E4ULL},
273};
274
b5c44b1a 275DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUVOffset)= 0x0040400000404000ULL;
dfb09bd1 276
7a24ec50 277#endif /* ARCH_X86 && CONFIG_GPL */
783e9cc9
MN
278
279// clipping helper table for C implementations:
280static unsigned char clip_table[768];
281
d4e24275 282static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
6a4970ab 283
d0b69b28 284static const uint8_t __attribute__((aligned(8))) dither_2x2_4[2][8]={
45e18be8
MN
285{ 1, 3, 1, 3, 1, 3, 1, 3, },
286{ 2, 0, 2, 0, 2, 0, 2, 0, },
287};
288
d0b69b28 289static const uint8_t __attribute__((aligned(8))) dither_2x2_8[2][8]={
45e18be8
MN
290{ 6, 2, 6, 2, 6, 2, 6, 2, },
291{ 0, 4, 0, 4, 0, 4, 0, 4, },
292};
293
294const uint8_t __attribute__((aligned(8))) dither_8x8_32[8][8]={
295{ 17, 9, 23, 15, 16, 8, 22, 14, },
296{ 5, 29, 3, 27, 4, 28, 2, 26, },
297{ 21, 13, 19, 11, 20, 12, 18, 10, },
298{ 0, 24, 6, 30, 1, 25, 7, 31, },
299{ 16, 8, 22, 14, 17, 9, 23, 15, },
300{ 4, 28, 2, 26, 5, 29, 3, 27, },
301{ 20, 12, 18, 10, 21, 13, 19, 11, },
302{ 1, 25, 7, 31, 0, 24, 6, 30, },
303};
304
305#if 0
306const uint8_t __attribute__((aligned(8))) dither_8x8_64[8][8]={
307{ 0, 48, 12, 60, 3, 51, 15, 63, },
308{ 32, 16, 44, 28, 35, 19, 47, 31, },
309{ 8, 56, 4, 52, 11, 59, 7, 55, },
310{ 40, 24, 36, 20, 43, 27, 39, 23, },
311{ 2, 50, 14, 62, 1, 49, 13, 61, },
312{ 34, 18, 46, 30, 33, 17, 45, 29, },
313{ 10, 58, 6, 54, 9, 57, 5, 53, },
314{ 42, 26, 38, 22, 41, 25, 37, 21, },
315};
316#endif
317
318const uint8_t __attribute__((aligned(8))) dither_8x8_73[8][8]={
319{ 0, 55, 14, 68, 3, 58, 17, 72, },
320{ 37, 18, 50, 32, 40, 22, 54, 35, },
321{ 9, 64, 5, 59, 13, 67, 8, 63, },
322{ 46, 27, 41, 23, 49, 31, 44, 26, },
323{ 2, 57, 16, 71, 1, 56, 15, 70, },
324{ 39, 21, 52, 34, 38, 19, 51, 33, },
325{ 11, 66, 7, 62, 10, 65, 6, 60, },
326{ 48, 30, 43, 25, 47, 29, 42, 24, },
327};
328
329#if 0
330const uint8_t __attribute__((aligned(8))) dither_8x8_128[8][8]={
331{ 68, 36, 92, 60, 66, 34, 90, 58, },
332{ 20, 116, 12, 108, 18, 114, 10, 106, },
333{ 84, 52, 76, 44, 82, 50, 74, 42, },
334{ 0, 96, 24, 120, 6, 102, 30, 126, },
335{ 64, 32, 88, 56, 70, 38, 94, 62, },
336{ 16, 112, 8, 104, 22, 118, 14, 110, },
337{ 80, 48, 72, 40, 86, 54, 78, 46, },
338{ 4, 100, 28, 124, 2, 98, 26, 122, },
339};
340#endif
341
342#if 1
343const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
344{117, 62, 158, 103, 113, 58, 155, 100, },
345{ 34, 199, 21, 186, 31, 196, 17, 182, },
346{144, 89, 131, 76, 141, 86, 127, 72, },
347{ 0, 165, 41, 206, 10, 175, 52, 217, },
348{110, 55, 151, 96, 120, 65, 162, 107, },
349{ 28, 193, 14, 179, 38, 203, 24, 189, },
350{138, 83, 124, 69, 148, 93, 134, 79, },
351{ 7, 172, 48, 213, 3, 168, 45, 210, },
352};
353#elif 1
354// tries to correct a gamma of 1.5
355const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
356{ 0, 143, 18, 200, 2, 156, 25, 215, },
357{ 78, 28, 125, 64, 89, 36, 138, 74, },
358{ 10, 180, 3, 161, 16, 195, 8, 175, },
359{109, 51, 93, 38, 121, 60, 105, 47, },
360{ 1, 152, 23, 210, 0, 147, 20, 205, },
361{ 85, 33, 134, 71, 81, 30, 130, 67, },
362{ 14, 190, 6, 171, 12, 185, 5, 166, },
363{117, 57, 101, 44, 113, 54, 97, 41, },
364};
365#elif 1
366// tries to correct a gamma of 2.0
367const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
368{ 0, 124, 8, 193, 0, 140, 12, 213, },
369{ 55, 14, 104, 42, 66, 19, 119, 52, },
370{ 3, 168, 1, 145, 6, 187, 3, 162, },
371{ 86, 31, 70, 21, 99, 39, 82, 28, },
372{ 0, 134, 11, 206, 0, 129, 9, 200, },
373{ 62, 17, 114, 48, 58, 16, 109, 45, },
374{ 5, 181, 2, 157, 4, 175, 1, 151, },
375{ 95, 36, 78, 26, 90, 34, 74, 24, },
376};
377#else
378// tries to correct a gamma of 2.5
379const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
380{ 0, 107, 3, 187, 0, 125, 6, 212, },
381{ 39, 7, 86, 28, 49, 11, 102, 36, },
382{ 1, 158, 0, 131, 3, 180, 1, 151, },
383{ 68, 19, 52, 12, 81, 25, 64, 17, },
384{ 0, 119, 5, 203, 0, 113, 4, 195, },
385{ 45, 9, 96, 33, 42, 8, 91, 30, },
386{ 2, 172, 1, 144, 2, 165, 0, 137, },
387{ 77, 23, 60, 15, 72, 21, 56, 14, },
388};
389#endif
5cebb24b 390
8055ede6 391const char *sws_format_name(enum PixelFormat format)
94c4def2 392{
e9e12f0e
LA
393 switch (format) {
394 case PIX_FMT_YUV420P:
395 return "yuv420p";
79973335
AJ
396 case PIX_FMT_YUVA420P:
397 return "yuva420p";
e9e12f0e
LA
398 case PIX_FMT_YUYV422:
399 return "yuyv422";
400 case PIX_FMT_RGB24:
401 return "rgb24";
402 case PIX_FMT_BGR24:
403 return "bgr24";
404 case PIX_FMT_YUV422P:
405 return "yuv422p";
406 case PIX_FMT_YUV444P:
407 return "yuv444p";
408 case PIX_FMT_RGB32:
409 return "rgb32";
410 case PIX_FMT_YUV410P:
411 return "yuv410p";
412 case PIX_FMT_YUV411P:
413 return "yuv411p";
414 case PIX_FMT_RGB565:
415 return "rgb565";
416 case PIX_FMT_RGB555:
417 return "rgb555";
4884b9e5
KS
418 case PIX_FMT_GRAY16BE:
419 return "gray16be";
420 case PIX_FMT_GRAY16LE:
421 return "gray16le";
e9e12f0e
LA
422 case PIX_FMT_GRAY8:
423 return "gray8";
424 case PIX_FMT_MONOWHITE:
425 return "mono white";
426 case PIX_FMT_MONOBLACK:
427 return "mono black";
428 case PIX_FMT_PAL8:
429 return "Palette";
430 case PIX_FMT_YUVJ420P:
431 return "yuvj420p";
432 case PIX_FMT_YUVJ422P:
433 return "yuvj422p";
434 case PIX_FMT_YUVJ444P:
435 return "yuvj444p";
436 case PIX_FMT_XVMC_MPEG2_MC:
437 return "xvmc_mpeg2_mc";
438 case PIX_FMT_XVMC_MPEG2_IDCT:
439 return "xvmc_mpeg2_idct";
440 case PIX_FMT_UYVY422:
441 return "uyvy422";
442 case PIX_FMT_UYYVYY411:
443 return "uyyvyy411";
444 case PIX_FMT_RGB32_1:
445 return "rgb32x";
446 case PIX_FMT_BGR32_1:
447 return "bgr32x";
448 case PIX_FMT_BGR32:
449 return "bgr32";
450 case PIX_FMT_BGR565:
451 return "bgr565";
452 case PIX_FMT_BGR555:
453 return "bgr555";
454 case PIX_FMT_BGR8:
455 return "bgr8";
456 case PIX_FMT_BGR4:
457 return "bgr4";
458 case PIX_FMT_BGR4_BYTE:
459 return "bgr4 byte";
460 case PIX_FMT_RGB8:
461 return "rgb8";
462 case PIX_FMT_RGB4:
463 return "rgb4";
464 case PIX_FMT_RGB4_BYTE:
465 return "rgb4 byte";
075ec82c
KS
466 case PIX_FMT_RGB48BE:
467 return "rgb48be";
468 case PIX_FMT_RGB48LE:
469 return "rgb48le";
e9e12f0e
LA
470 case PIX_FMT_NV12:
471 return "nv12";
472 case PIX_FMT_NV21:
473 return "nv21";
9ba7fe6d
474 case PIX_FMT_YUV440P:
475 return "yuv440p";
420169e5
CEH
476 case PIX_FMT_VDPAU_H264:
477 return "vdpau_h264";
4e2b4876
NC
478 case PIX_FMT_VDPAU_MPEG1:
479 return "vdpau_mpeg1";
480 case PIX_FMT_VDPAU_MPEG2:
481 return "vdpau_mpeg2";
0ab80395
CEH
482 case PIX_FMT_VDPAU_WMV3:
483 return "vdpau_wmv3";
484 case PIX_FMT_VDPAU_VC1:
485 return "vdpau_vc1";
de1275d5
MN
486 case PIX_FMT_YUV420PLE:
487 return "yuv420ple";
488 case PIX_FMT_YUV422PLE:
489 return "yuv422ple";
490 case PIX_FMT_YUV444PLE:
491 return "yuv444ple";
492 case PIX_FMT_YUV420PBE:
493 return "yuv420pbe";
494 case PIX_FMT_YUV422PBE:
495 return "yuv422pbe";
496 case PIX_FMT_YUV444PBE:
497 return "yuv444pbe";
e9e12f0e
LA
498 default:
499 return "Unknown format";
500 }
94c4def2
LA
501}
502
7ac40327
RP
503static inline void yuv2yuvXinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
504 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
505 const int16_t **alpSrc, uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, int dstW, int chrDstW)
e3d2500f 506{
f40c7dbb 507 //FIXME Optimize (just quickly written not optimized..)
221b804f
DB
508 int i;
509 for (i=0; i<dstW; i++)
510 {
511 int val=1<<18;
512 int j;
513 for (j=0; j<lumFilterSize; j++)
514 val += lumSrc[j][i] * lumFilter[j];
515
516 dest[i]= av_clip_uint8(val>>19);
517 }
518
1b0a4572 519 if (uDest)
221b804f
DB
520 for (i=0; i<chrDstW; i++)
521 {
522 int u=1<<18;
523 int v=1<<18;
524 int j;
525 for (j=0; j<chrFilterSize; j++)
526 {
527 u += chrSrc[j][i] * chrFilter[j];
8b2fce0d 528 v += chrSrc[j][i + VOFW] * chrFilter[j];
221b804f
DB
529 }
530
531 uDest[i]= av_clip_uint8(u>>19);
532 vDest[i]= av_clip_uint8(v>>19);
533 }
6858492e
CS
534
535 if (CONFIG_SWSCALE_ALPHA && aDest)
536 for (i=0; i<dstW; i++){
537 int val=1<<18;
538 int j;
539 for (j=0; j<lumFilterSize; j++)
540 val += alpSrc[j][i] * lumFilter[j];
541
542 aDest[i]= av_clip_uint8(val>>19);
543 }
544
e3d2500f
MN
545}
546
7ac40327
RP
547static inline void yuv2nv12XinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
548 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
221b804f 549 uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
6118e52e 550{
f40c7dbb 551 //FIXME Optimize (just quickly written not optimized..)
221b804f
DB
552 int i;
553 for (i=0; i<dstW; i++)
554 {
555 int val=1<<18;
556 int j;
557 for (j=0; j<lumFilterSize; j++)
558 val += lumSrc[j][i] * lumFilter[j];
559
560 dest[i]= av_clip_uint8(val>>19);
561 }
562
1b0a4572 563 if (!uDest)
221b804f
DB
564 return;
565
566 if (dstFormat == PIX_FMT_NV12)
567 for (i=0; i<chrDstW; i++)
568 {
569 int u=1<<18;
570 int v=1<<18;
571 int j;
572 for (j=0; j<chrFilterSize; j++)
573 {
574 u += chrSrc[j][i] * chrFilter[j];
8b2fce0d 575 v += chrSrc[j][i + VOFW] * chrFilter[j];
221b804f
DB
576 }
577
578 uDest[2*i]= av_clip_uint8(u>>19);
579 uDest[2*i+1]= av_clip_uint8(v>>19);
580 }
581 else
582 for (i=0; i<chrDstW; i++)
583 {
584 int u=1<<18;
585 int v=1<<18;
586 int j;
587 for (j=0; j<chrFilterSize; j++)
588 {
589 u += chrSrc[j][i] * chrFilter[j];
8b2fce0d 590 v += chrSrc[j][i + VOFW] * chrFilter[j];
221b804f
DB
591 }
592
593 uDest[2*i]= av_clip_uint8(v>>19);
594 uDest[2*i+1]= av_clip_uint8(u>>19);
595 }
6118e52e 596}
46de8b73 597
6858492e 598#define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha) \
221b804f
DB
599 for (i=0; i<(dstW>>1); i++){\
600 int j;\
601 int Y1 = 1<<18;\
602 int Y2 = 1<<18;\
603 int U = 1<<18;\
604 int V = 1<<18;\
6858492e 605 int av_unused A1, A2;\
2db27aad 606 type av_unused *r, *b, *g;\
221b804f
DB
607 const int i2= 2*i;\
608 \
609 for (j=0; j<lumFilterSize; j++)\
610 {\
611 Y1 += lumSrc[j][i2] * lumFilter[j];\
612 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
613 }\
614 for (j=0; j<chrFilterSize; j++)\
615 {\
616 U += chrSrc[j][i] * chrFilter[j];\
8b2fce0d 617 V += chrSrc[j][i+VOFW] * chrFilter[j];\
221b804f
DB
618 }\
619 Y1>>=19;\
620 Y2>>=19;\
621 U >>=19;\
622 V >>=19;\
6858492e
CS
623 if (alpha){\
624 A1 = 1<<18;\
625 A2 = 1<<18;\
626 for (j=0; j<lumFilterSize; j++){\
627 A1 += alpSrc[j][i2 ] * lumFilter[j];\
628 A2 += alpSrc[j][i2+1] * lumFilter[j];\
629 }\
630 A1>>=19;\
631 A2>>=19;\
632 }\
bdf397ba 633
6858492e
CS
634#define YSCALE_YUV_2_PACKEDX_C(type,alpha) \
635 YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha)\
221b804f
DB
636 if ((Y1|Y2|U|V)&256)\
637 {\
638 if (Y1>255) Y1=255; \
639 else if (Y1<0)Y1=0; \
640 if (Y2>255) Y2=255; \
641 else if (Y2<0)Y2=0; \
642 if (U>255) U=255; \
643 else if (U<0) U=0; \
644 if (V>255) V=255; \
645 else if (V<0) V=0; \
6858492e
CS
646 }\
647 if (alpha && ((A1|A2)&256)){\
648 A1=av_clip_uint8(A1);\
649 A2=av_clip_uint8(A2);\
221b804f 650 }
6a4970ab 651
6858492e 652#define YSCALE_YUV_2_PACKEDX_FULL_C(rnd,alpha) \
f0faee4c
MN
653 for (i=0; i<dstW; i++){\
654 int j;\
655 int Y = 0;\
656 int U = -128<<19;\
657 int V = -128<<19;\
6858492e 658 int av_unused A;\
f0faee4c
MN
659 int R,G,B;\
660 \
661 for (j=0; j<lumFilterSize; j++){\
662 Y += lumSrc[j][i ] * lumFilter[j];\
663 }\
664 for (j=0; j<chrFilterSize; j++){\
665 U += chrSrc[j][i ] * chrFilter[j];\
666 V += chrSrc[j][i+VOFW] * chrFilter[j];\
667 }\
668 Y >>=10;\
669 U >>=10;\
670 V >>=10;\
6858492e
CS
671 if (alpha){\
672 A = rnd;\
673 for (j=0; j<lumFilterSize; j++)\
674 A += alpSrc[j][i ] * lumFilter[j];\
675 A >>=19;\
676 if (A&256)\
677 A = av_clip_uint8(A);\
678 }\
f0faee4c 679
6858492e
CS
680#define YSCALE_YUV_2_RGBX_FULL_C(rnd,alpha) \
681 YSCALE_YUV_2_PACKEDX_FULL_C(rnd>>3,alpha)\
43c16478
MN
682 Y-= c->yuv2rgb_y_offset;\
683 Y*= c->yuv2rgb_y_coeff;\
f0faee4c 684 Y+= rnd;\
43c16478
MN
685 R= Y + V*c->yuv2rgb_v2r_coeff;\
686 G= Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;\
687 B= Y + U*c->yuv2rgb_u2b_coeff;\
f0faee4c
MN
688 if ((R|G|B)&(0xC0000000)){\
689 if (R>=(256<<22)) R=(256<<22)-1; \
690 else if (R<0)R=0; \
691 if (G>=(256<<22)) G=(256<<22)-1; \
692 else if (G<0)G=0; \
693 if (B>=(256<<22)) B=(256<<22)-1; \
694 else if (B<0)B=0; \
695 }\
696
697
e69bd294 698#define YSCALE_YUV_2_GRAY16_C \
b0880d5d
MN
699 for (i=0; i<(dstW>>1); i++){\
700 int j;\
701 int Y1 = 1<<18;\
702 int Y2 = 1<<18;\
703 int U = 1<<18;\
704 int V = 1<<18;\
e69bd294 705 \
b0880d5d
MN
706 const int i2= 2*i;\
707 \
708 for (j=0; j<lumFilterSize; j++)\
709 {\
710 Y1 += lumSrc[j][i2] * lumFilter[j];\
711 Y2 += lumSrc[j][i2+1] * lumFilter[j];\
712 }\
713 Y1>>=11;\
714 Y2>>=11;\
715 if ((Y1|Y2|U|V)&65536)\
716 {\
717 if (Y1>65535) Y1=65535; \
718 else if (Y1<0)Y1=0; \
719 if (Y2>65535) Y2=65535; \
720 else if (Y2<0)Y2=0; \
721 }
722
6858492e
CS
723#define YSCALE_YUV_2_RGBX_C(type,alpha) \
724 YSCALE_YUV_2_PACKEDX_C(type,alpha) /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/\
221b804f
DB
725 r = (type *)c->table_rV[V]; \
726 g = (type *)(c->table_gU[U] + c->table_gV[V]); \
727 b = (type *)c->table_bU[U]; \
728
6858492e 729#define YSCALE_YUV_2_PACKED2_C(type,alpha) \
221b804f
DB
730 for (i=0; i<(dstW>>1); i++){ \
731 const int i2= 2*i; \
732 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19; \
733 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19; \
734 int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19; \
8b2fce0d 735 int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19; \
6858492e
CS
736 type av_unused *r, *b, *g; \
737 int av_unused A1, A2; \
738 if (alpha){\
739 A1= (abuf0[i2 ]*yalpha1+abuf1[i2 ]*yalpha)>>19; \
740 A2= (abuf0[i2+1]*yalpha1+abuf1[i2+1]*yalpha)>>19; \
741 }\
46de8b73 742
b0880d5d
MN
743#define YSCALE_YUV_2_GRAY16_2_C \
744 for (i=0; i<(dstW>>1); i++){ \
745 const int i2= 2*i; \
746 int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>11; \
747 int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11; \
748
6858492e
CS
749#define YSCALE_YUV_2_RGB2_C(type,alpha) \
750 YSCALE_YUV_2_PACKED2_C(type,alpha)\
221b804f
DB
751 r = (type *)c->table_rV[V];\
752 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
753 b = (type *)c->table_bU[U];\
cf7d1c1a 754
6858492e 755#define YSCALE_YUV_2_PACKED1_C(type,alpha) \
221b804f
DB
756 for (i=0; i<(dstW>>1); i++){\
757 const int i2= 2*i;\
758 int Y1= buf0[i2 ]>>7;\
759 int Y2= buf0[i2+1]>>7;\
760 int U= (uvbuf1[i ])>>7;\
8b2fce0d 761 int V= (uvbuf1[i+VOFW])>>7;\
6858492e
CS
762 type av_unused *r, *b, *g;\
763 int av_unused A1, A2;\
764 if (alpha){\
765 A1= abuf0[i2 ]>>7;\
766 A2= abuf0[i2+1]>>7;\
767 }\
46de8b73 768
b0880d5d
MN
769#define YSCALE_YUV_2_GRAY16_1_C \
770 for (i=0; i<(dstW>>1); i++){\
771 const int i2= 2*i;\
772 int Y1= buf0[i2 ]<<1;\
773 int Y2= buf0[i2+1]<<1;\
774
6858492e
CS
775#define YSCALE_YUV_2_RGB1_C(type,alpha) \
776 YSCALE_YUV_2_PACKED1_C(type,alpha)\
221b804f
DB
777 r = (type *)c->table_rV[V];\
778 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
779 b = (type *)c->table_bU[U];\
cf7d1c1a 780
6858492e 781#define YSCALE_YUV_2_PACKED1B_C(type,alpha) \
221b804f
DB
782 for (i=0; i<(dstW>>1); i++){\
783 const int i2= 2*i;\
784 int Y1= buf0[i2 ]>>7;\
785 int Y2= buf0[i2+1]>>7;\
786 int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
8b2fce0d 787 int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\
6858492e
CS
788 type av_unused *r, *b, *g;\
789 int av_unused A1, A2;\
790 if (alpha){\
791 A1= abuf0[i2 ]>>7;\
792 A2= abuf0[i2+1]>>7;\
793 }\
46de8b73 794
6858492e
CS
795#define YSCALE_YUV_2_RGB1B_C(type,alpha) \
796 YSCALE_YUV_2_PACKED1B_C(type,alpha)\
221b804f
DB
797 r = (type *)c->table_rV[V];\
798 g = (type *)(c->table_gU[U] + c->table_gV[V]);\
799 b = (type *)c->table_bU[U];\
cf7d1c1a 800
ec1bca2a 801#define YSCALE_YUV_2_MONO2_C \
e69bd294
MN
802 const uint8_t * const d128=dither_8x8_220[y&7];\
803 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
804 for (i=0; i<dstW-7; i+=8){\
805 int acc;\
806 acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
807 acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
808 acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
809 acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
810 acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
811 acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
812 acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
813 acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
ec1bca2a 814 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
e69bd294
MN
815 dest++;\
816 }\
817
818
ec1bca2a 819#define YSCALE_YUV_2_MONOX_C \
e69bd294
MN
820 const uint8_t * const d128=dither_8x8_220[y&7];\
821 uint8_t *g= c->table_gU[128] + c->table_gV[128];\
822 int acc=0;\
823 for (i=0; i<dstW-1; i+=2){\
824 int j;\
825 int Y1=1<<18;\
826 int Y2=1<<18;\
827\
828 for (j=0; j<lumFilterSize; j++)\
829 {\
830 Y1 += lumSrc[j][i] * lumFilter[j];\
831 Y2 += lumSrc[j][i+1] * lumFilter[j];\
832 }\
833 Y1>>=19;\
834 Y2>>=19;\
835 if ((Y1|Y2)&256)\
836 {\
837 if (Y1>255) Y1=255;\
838 else if (Y1<0)Y1=0;\
839 if (Y2>255) Y2=255;\
840 else if (Y2<0)Y2=0;\
841 }\
842 acc+= acc + g[Y1+d128[(i+0)&7]];\
843 acc+= acc + g[Y2+d128[(i+1)&7]];\
844 if ((i&7)==6){\
ec1bca2a 845 ((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
e69bd294
MN
846 dest++;\
847 }\
848 }
849
850
851#define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16, func_monoblack)\
221b804f
DB
852 switch(c->dstFormat)\
853 {\
6858492e
CS
854 case PIX_FMT_RGBA:\
855 case PIX_FMT_BGRA:\
856 if (CONFIG_SMALL){\
857 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
858 func(uint32_t,needAlpha)\
859 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? (A1<<24) : 0);\
860 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? (A2<<24) : 0);\
861 }\
862 }else{\
863 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){\
864 func(uint32_t,1)\
865 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (A1<<24);\
866 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (A2<<24);\
867 }\
868 }else{\
869 func(uint32_t,0)\
870 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
871 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
872 }\
873 }\
874 }\
875 break;\
876 case PIX_FMT_ARGB:\
877 case PIX_FMT_ABGR:\
878 if (CONFIG_SMALL){\
879 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
880 func(uint32_t,needAlpha)\
881 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? A1 : 0);\
882 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? A2 : 0);\
883 }\
884 }else{\
885 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){\
886 func(uint32_t,1)\
887 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + A1;\
888 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + A2;\
889 }\
890 }else{\
891 func(uint32_t,0)\
892 ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
893 ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
894 }\
895 }\
221b804f
DB
896 } \
897 break;\
898 case PIX_FMT_RGB24:\
6858492e 899 func(uint8_t,0)\
221b804f
DB
900 ((uint8_t*)dest)[0]= r[Y1];\
901 ((uint8_t*)dest)[1]= g[Y1];\
902 ((uint8_t*)dest)[2]= b[Y1];\
903 ((uint8_t*)dest)[3]= r[Y2];\
904 ((uint8_t*)dest)[4]= g[Y2];\
905 ((uint8_t*)dest)[5]= b[Y2];\
906 dest+=6;\
907 }\
908 break;\
909 case PIX_FMT_BGR24:\
6858492e 910 func(uint8_t,0)\
221b804f
DB
911 ((uint8_t*)dest)[0]= b[Y1];\
912 ((uint8_t*)dest)[1]= g[Y1];\
913 ((uint8_t*)dest)[2]= r[Y1];\
914 ((uint8_t*)dest)[3]= b[Y2];\
915 ((uint8_t*)dest)[4]= g[Y2];\
916 ((uint8_t*)dest)[5]= r[Y2];\
917 dest+=6;\
918 }\
919 break;\
920 case PIX_FMT_RGB565:\
921 case PIX_FMT_BGR565:\
922 {\
923 const int dr1= dither_2x2_8[y&1 ][0];\
924 const int dg1= dither_2x2_4[y&1 ][0];\
925 const int db1= dither_2x2_8[(y&1)^1][0];\
926 const int dr2= dither_2x2_8[y&1 ][1];\
927 const int dg2= dither_2x2_4[y&1 ][1];\
928 const int db2= dither_2x2_8[(y&1)^1][1];\
6858492e 929 func(uint16_t,0)\
221b804f
DB
930 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
931 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
932 }\
933 }\
934 break;\
935 case PIX_FMT_RGB555:\
936 case PIX_FMT_BGR555:\
937 {\
938 const int dr1= dither_2x2_8[y&1 ][0];\
939 const int dg1= dither_2x2_8[y&1 ][1];\
940 const int db1= dither_2x2_8[(y&1)^1][0];\
941 const int dr2= dither_2x2_8[y&1 ][1];\
942 const int dg2= dither_2x2_8[y&1 ][0];\
943 const int db2= dither_2x2_8[(y&1)^1][1];\
6858492e 944 func(uint16_t,0)\
221b804f
DB
945 ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
946 ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
947 }\
948 }\
949 break;\
950 case PIX_FMT_RGB8:\
951 case PIX_FMT_BGR8:\
952 {\
953 const uint8_t * const d64= dither_8x8_73[y&7];\
954 const uint8_t * const d32= dither_8x8_32[y&7];\
6858492e 955 func(uint8_t,0)\
221b804f
DB
956 ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
957 ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
958 }\
959 }\
960 break;\
961 case PIX_FMT_RGB4:\
962 case PIX_FMT_BGR4:\
963 {\
964 const uint8_t * const d64= dither_8x8_73 [y&7];\
965 const uint8_t * const d128=dither_8x8_220[y&7];\
6858492e 966 func(uint8_t,0)\
221b804f
DB
967 ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
968 + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
969 }\
970 }\
971 break;\
972 case PIX_FMT_RGB4_BYTE:\
973 case PIX_FMT_BGR4_BYTE:\
974 {\
975 const uint8_t * const d64= dither_8x8_73 [y&7];\
976 const uint8_t * const d128=dither_8x8_220[y&7];\
6858492e 977 func(uint8_t,0)\
221b804f
DB
978 ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
979 ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
980 }\
981 }\
982 break;\
983 case PIX_FMT_MONOBLACK:\
ec1bca2a 984 case PIX_FMT_MONOWHITE:\
221b804f 985 {\
e69bd294 986 func_monoblack\
221b804f
DB
987 }\
988 break;\
989 case PIX_FMT_YUYV422:\
990 func2\
991 ((uint8_t*)dest)[2*i2+0]= Y1;\
992 ((uint8_t*)dest)[2*i2+1]= U;\
993 ((uint8_t*)dest)[2*i2+2]= Y2;\
994 ((uint8_t*)dest)[2*i2+3]= V;\
995 } \
996 break;\
997 case PIX_FMT_UYVY422:\
998 func2\
999 ((uint8_t*)dest)[2*i2+0]= U;\
1000 ((uint8_t*)dest)[2*i2+1]= Y1;\
1001 ((uint8_t*)dest)[2*i2+2]= V;\
1002 ((uint8_t*)dest)[2*i2+3]= Y2;\
1003 } \
1004 break;\
b0880d5d
MN
1005 case PIX_FMT_GRAY16BE:\
1006 func_g16\
1007 ((uint8_t*)dest)[2*i2+0]= Y1>>8;\
1008 ((uint8_t*)dest)[2*i2+1]= Y1;\
1009 ((uint8_t*)dest)[2*i2+2]= Y2>>8;\
1010 ((uint8_t*)dest)[2*i2+3]= Y2;\
1011 } \
1012 break;\
1013 case PIX_FMT_GRAY16LE:\
1014 func_g16\
1015 ((uint8_t*)dest)[2*i2+0]= Y1;\
1016 ((uint8_t*)dest)[2*i2+1]= Y1>>8;\
1017 ((uint8_t*)dest)[2*i2+2]= Y2;\
1018 ((uint8_t*)dest)[2*i2+3]= Y2>>8;\
1019 } \
1020 break;\
221b804f 1021 }\
cf7d1c1a
MN
1022
1023
7ac40327
RP
1024static inline void yuv2packedXinC(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
1025 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
1026 const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
e3d2500f 1027{
221b804f 1028 int i;
6858492e 1029 YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGBX_C, YSCALE_YUV_2_PACKEDX_C(void,0), YSCALE_YUV_2_GRAY16_C, YSCALE_YUV_2_MONOX_C)
e3d2500f
MN
1030}
1031
7ac40327
RP
1032static inline void yuv2rgbXinC_full(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
1033 const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
1034 const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
f0faee4c
MN
1035{
1036 int i;
1037 int step= fmt_depth(c->dstFormat)/8;
d616c8ae 1038 int aidx= 3;
f0faee4c
MN
1039
1040 switch(c->dstFormat){
1041 case PIX_FMT_ARGB:
1042 dest++;
a3398feb 1043 aidx= 0;
f0faee4c 1044 case PIX_FMT_RGB24:
d616c8ae 1045 aidx--;
f0faee4c 1046 case PIX_FMT_RGBA:
6858492e
CS
1047 if (CONFIG_SMALL){
1048 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
1049 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
1050 dest[aidx]= needAlpha ? A : 255;
1051 dest[0]= R>>22;
1052 dest[1]= G>>22;
1053 dest[2]= B>>22;
1054 dest+= step;
1055 }
1056 }else{
1057 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){
1058 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
1059 dest[aidx]= A;
1060 dest[0]= R>>22;
1061 dest[1]= G>>22;
1062 dest[2]= B>>22;
1063 dest+= step;
1064 }
1065 }else{
1066 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
1067 dest[aidx]= 255;
1068 dest[0]= R>>22;
1069 dest[1]= G>>22;
1070 dest[2]= B>>22;
1071 dest+= step;
1072 }
1073 }
f0faee4c
MN
1074 }
1075 break;
1076 case PIX_FMT_ABGR:
1077 dest++;
a3398feb 1078 aidx= 0;
f0faee4c 1079 case PIX_FMT_BGR24:
d616c8ae 1080 aidx--;
f0faee4c 1081 case PIX_FMT_BGRA:
6858492e
CS
1082 if (CONFIG_SMALL){
1083 int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
1084 YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
1085 dest[aidx]= needAlpha ? A : 255;
1086 dest[0]= B>>22;
1087 dest[1]= G>>22;
1088 dest[2]= R>>22;
1089 dest+= step;
1090 }
1091 }else{
1092 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf){
1093 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
1094 dest[aidx]= A;
1095 dest[0]= B>>22;
1096 dest[1]= G>>22;
1097 dest[2]= R>>22;
1098 dest+= step;
1099 }
1100 }else{
1101 YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
1102 dest[aidx]= 255;
1103 dest[0]= B>>22;
1104 dest[1]= G>>22;
1105 dest[2]= R>>22;
1106 dest+= step;
1107 }
1108 }
f0faee4c
MN
1109 }
1110 break;
1111 default:
1112 assert(0);
1113 }
1114}
e3d2500f 1115
d4da3e47
CS
1116static void fillPlane(uint8_t* plane, int stride, int width, int height, int y, uint8_t val){
1117 int i;
1118 uint8_t *ptr = plane + stride*y;
1119 for (i=0; i<height; i++){
1120 memset(ptr, val, width);
1121 ptr += stride;
1122 }
1123}
1124
dd409025 1125//Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
7630f2e0 1126//Plain C versions
10a7d216 1127#if !HAVE_MMX || CONFIG_RUNTIME_CPUDETECT || !CONFIG_GPL
726a959a
MN
1128#define COMPILE_C
1129#endif
1130
b63f641e 1131#if ARCH_PPC
10a7d216 1132#if (HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
dfe44a85 1133#undef COMPILE_C
a2faa401 1134#define COMPILE_ALTIVEC
7a24ec50 1135#endif
cb82a073 1136#endif //ARCH_PPC
a2faa401 1137
b63f641e 1138#if ARCH_X86
726a959a 1139
10a7d216 1140#if ((HAVE_MMX && !HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
726a959a
MN
1141#define COMPILE_MMX
1142#endif
1143
10a7d216 1144#if (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
726a959a
MN
1145#define COMPILE_MMX2
1146#endif
1147
10a7d216 1148#if ((HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
726a959a
MN
1149#define COMPILE_3DNOW
1150#endif
7a24ec50 1151#endif //ARCH_X86
726a959a
MN
1152
1153#undef HAVE_MMX
1154#undef HAVE_MMX2
f4406ec1 1155#undef HAVE_AMD3DNOW
b63f641e
AJ
1156#undef HAVE_ALTIVEC
1157#define HAVE_MMX 0
1158#define HAVE_MMX2 0
f4406ec1 1159#define HAVE_AMD3DNOW 0
b63f641e 1160#define HAVE_ALTIVEC 0
726a959a
MN
1161
1162#ifdef COMPILE_C
7630f2e0
MN
1163#define RENAME(a) a ## _C
1164#include "swscale_template.c"
726a959a 1165#endif
397c035e 1166
a2faa401
RD
1167#ifdef COMPILE_ALTIVEC
1168#undef RENAME
b63f641e
AJ
1169#undef HAVE_ALTIVEC
1170#define HAVE_ALTIVEC 1
a2faa401
RD
1171#define RENAME(a) a ## _altivec
1172#include "swscale_template.c"
1173#endif
a2faa401 1174
b63f641e 1175#if ARCH_X86
397c035e 1176
7630f2e0 1177//MMX versions
726a959a 1178#ifdef COMPILE_MMX
7630f2e0 1179#undef RENAME
b63f641e 1180#undef HAVE_MMX
7630f2e0 1181#undef HAVE_MMX2
f4406ec1 1182#undef HAVE_AMD3DNOW
b63f641e
AJ
1183#define HAVE_MMX 1
1184#define HAVE_MMX2 0
f4406ec1 1185#define HAVE_AMD3DNOW 0
7630f2e0
MN
1186#define RENAME(a) a ## _MMX
1187#include "swscale_template.c"
726a959a 1188#endif
7630f2e0
MN
1189
1190//MMX2 versions
726a959a 1191#ifdef COMPILE_MMX2
7630f2e0 1192#undef RENAME
b63f641e
AJ
1193#undef HAVE_MMX
1194#undef HAVE_MMX2
f4406ec1 1195#undef HAVE_AMD3DNOW
b63f641e
AJ
1196#define HAVE_MMX 1
1197#define HAVE_MMX2 1
f4406ec1 1198#define HAVE_AMD3DNOW 0
7630f2e0
MN
1199#define RENAME(a) a ## _MMX2
1200#include "swscale_template.c"
726a959a 1201#endif
7630f2e0
MN
1202
1203//3DNOW versions
726a959a 1204#ifdef COMPILE_3DNOW
7630f2e0 1205#undef RENAME
b63f641e 1206#undef HAVE_MMX
7630f2e0 1207#undef HAVE_MMX2
f4406ec1 1208#undef HAVE_AMD3DNOW
b63f641e
AJ
1209#define HAVE_MMX 1
1210#define HAVE_MMX2 0
f4406ec1 1211#define HAVE_AMD3DNOW 1
7630f2e0
MN
1212#define RENAME(a) a ## _3DNow
1213#include "swscale_template.c"
726a959a 1214#endif
7630f2e0 1215
7a24ec50 1216#endif //ARCH_X86
7630f2e0 1217
f40c7dbb 1218// minor note: the HAVE_xyz are messed up after this line so don't use them
d604bab9 1219
a86c461c
MN
1220static double getSplineCoeff(double a, double b, double c, double d, double dist)
1221{
221b804f
DB
1222// printf("%f %f %f %f %f\n", a,b,c,d,dist);
1223 if (dist<=1.0) return ((d*dist + c)*dist + b)*dist +a;
1224 else return getSplineCoeff( 0.0,
1225 b+ 2.0*c + 3.0*d,
1226 c + 3.0*d,
1227 -b- 3.0*c - 6.0*d,
1228 dist-1.0);
a86c461c 1229}
6c7506de 1230
bca11e75 1231static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
221b804f
DB
1232 int srcW, int dstW, int filterAlign, int one, int flags,
1233 SwsVector *srcFilter, SwsVector *dstFilter, double param[2])
28bf81c9 1234{
221b804f
DB
1235 int i;
1236 int filterSize;
1237 int filter2Size;
1238 int minFilterSize;
a64a062f
MN
1239 int64_t *filter=NULL;
1240 int64_t *filter2=NULL;
1241 const int64_t fone= 1LL<<54;
091d3bdc 1242 int ret= -1;
b63f641e 1243#if ARCH_X86
221b804f 1244 if (flags & SWS_CPU_CAPS_MMX)
7ad6469e 1245 __asm__ volatile("emms\n\t"::: "memory"); //FIXME this should not be required but it IS (even for non-MMX versions)
726a959a 1246#endif
31190492 1247
f40c7dbb 1248 // NOTE: the +1 is for the MMX scaler which reads over the end
221b804f
DB
1249 *filterPos = av_malloc((dstW+1)*sizeof(int16_t));
1250
1251 if (FFABS(xInc - 0x10000) <10) // unscaled
1252 {
1253 int i;
1254 filterSize= 1;
8588e148 1255 filter= av_mallocz(dstW*sizeof(*filter)*filterSize);
221b804f
DB
1256
1257 for (i=0; i<dstW; i++)
1258 {
a64a062f 1259 filter[i*filterSize]= fone;
221b804f
DB
1260 (*filterPos)[i]=i;
1261 }
1262
1263 }
1264 else if (flags&SWS_POINT) // lame looking point sampling mode
1265 {
1266 int i;
1267 int xDstInSrc;
1268 filterSize= 1;
8588e148 1269 filter= av_malloc(dstW*sizeof(*filter)*filterSize);
221b804f
DB
1270
1271 xDstInSrc= xInc/2 - 0x8000;
1272 for (i=0; i<dstW; i++)
1273 {
1274 int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
1275
1276 (*filterPos)[i]= xx;
a64a062f 1277 filter[i]= fone;
221b804f
DB
1278 xDstInSrc+= xInc;
1279 }
1280 }
1281 else if ((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) // bilinear upscale
1282 {
1283 int i;
1284 int xDstInSrc;
1285 if (flags&SWS_BICUBIC) filterSize= 4;
1286 else if (flags&SWS_X ) filterSize= 4;
1287 else filterSize= 2; // SWS_BILINEAR / SWS_AREA
8588e148 1288 filter= av_malloc(dstW*sizeof(*filter)*filterSize);
221b804f
DB
1289
1290 xDstInSrc= xInc/2 - 0x8000;
1291 for (i=0; i<dstW; i++)
1292 {
1293 int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
1294 int j;
1295
1296 (*filterPos)[i]= xx;
f40c7dbb 1297 //bilinear upscale / linear interpolate / area averaging
221b804f
DB
1298 for (j=0; j<filterSize; j++)
1299 {
a64a062f 1300 int64_t coeff= fone - FFABS((xx<<16) - xDstInSrc)*(fone>>16);
221b804f
DB
1301 if (coeff<0) coeff=0;
1302 filter[i*filterSize + j]= coeff;
1303 xx++;
1304 }
1305 xDstInSrc+= xInc;
1306 }
1307 }
1308 else
1309 {
a64a062f
MN
1310 int xDstInSrc;
1311 int sizeFactor;
1312
1313 if (flags&SWS_BICUBIC) sizeFactor= 4;
1314 else if (flags&SWS_X) sizeFactor= 8;
1315 else if (flags&SWS_AREA) sizeFactor= 1; //downscale only, for upscale it is bilinear
1316 else if (flags&SWS_GAUSS) sizeFactor= 8; // infinite ;)
1317 else if (flags&SWS_LANCZOS) sizeFactor= param[0] != SWS_PARAM_DEFAULT ? ceil(2*param[0]) : 6;
1318 else if (flags&SWS_SINC) sizeFactor= 20; // infinite ;)
1319 else if (flags&SWS_SPLINE) sizeFactor= 20; // infinite ;)
1320 else if (flags&SWS_BILINEAR) sizeFactor= 2;
221b804f 1321 else {
a64a062f 1322 sizeFactor= 0; //GCC warning killer
fcc402b1 1323 assert(0);
221b804f
DB
1324 }
1325
a64a062f
MN
1326 if (xInc <= 1<<16) filterSize= 1 + sizeFactor; // upscale
1327 else filterSize= 1 + (sizeFactor*srcW + dstW - 1)/ dstW;
221b804f 1328
221b804f
DB
1329 if (filterSize > srcW-2) filterSize=srcW-2;
1330
8588e148 1331 filter= av_malloc(dstW*sizeof(*filter)*filterSize);
221b804f 1332
a64a062f 1333 xDstInSrc= xInc - 0x10000;
221b804f
DB
1334 for (i=0; i<dstW; i++)
1335 {
a64a062f 1336 int xx= (xDstInSrc - ((filterSize-2)<<16)) / (1<<17);
221b804f
DB
1337 int j;
1338 (*filterPos)[i]= xx;
1339 for (j=0; j<filterSize; j++)
1340 {
a64a062f
MN
1341 int64_t d= ((int64_t)FFABS((xx<<17) - xDstInSrc))<<13;
1342 double floatd;
1343 int64_t coeff;
1344
1345 if (xInc > 1<<16)
1346 d= d*dstW/srcW;
1347 floatd= d * (1.0/(1<<30));
1348
221b804f
DB
1349 if (flags & SWS_BICUBIC)
1350 {
a64a062f
MN
1351 int64_t B= (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1<<24);
1352 int64_t C= (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1<<24);
1353 int64_t dd = ( d*d)>>30;
1354 int64_t ddd= (dd*d)>>30;
1355
1356 if (d < 1LL<<30)
1357 coeff = (12*(1<<24)-9*B-6*C)*ddd + (-18*(1<<24)+12*B+6*C)*dd + (6*(1<<24)-2*B)*(1<<30);
1358 else if (d < 1LL<<31)
1359 coeff = (-B-6*C)*ddd + (6*B+30*C)*dd + (-12*B-48*C)*d + (8*B+24*C)*(1<<30);
221b804f
DB
1360 else
1361 coeff=0.0;
a64a062f 1362 coeff *= fone>>(30+24);
221b804f
DB
1363 }
1364/* else if (flags & SWS_X)
1365 {
1366 double p= param ? param*0.01 : 0.3;
1367 coeff = d ? sin(d*PI)/(d*PI) : 1.0;
1368 coeff*= pow(2.0, - p*d*d);
1369 }*/
1370 else if (flags & SWS_X)
1371 {
1372 double A= param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
a64a062f 1373 double c;
221b804f 1374
a64a062f
MN
1375 if (floatd<1.0)
1376 c = cos(floatd*PI);
221b804f 1377 else
a64a062f
MN
1378 c=-1.0;
1379 if (c<0.0) c= -pow(-c, A);
1380 else c= pow( c, A);
1381 coeff= (c*0.5 + 0.5)*fone;
221b804f
DB
1382 }
1383 else if (flags & SWS_AREA)
1384 {
a64a062f
MN
1385 int64_t d2= d - (1<<29);
1386 if (d2*xInc < -(1LL<<(29+16))) coeff= 1.0 * (1LL<<(30+16));
1387 else if (d2*xInc < (1LL<<(29+16))) coeff= -d2*xInc + (1LL<<(29+16));
221b804f 1388 else coeff=0.0;
a64a062f 1389 coeff *= fone>>(30+16);
221b804f
DB
1390 }
1391 else if (flags & SWS_GAUSS)
1392 {
1393 double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
a64a062f 1394 coeff = (pow(2.0, - p*floatd*floatd))*fone;
221b804f
DB
1395 }
1396 else if (flags & SWS_SINC)
1397 {
a64a062f 1398 coeff = (d ? sin(floatd*PI)/(floatd*PI) : 1.0)*fone;
221b804f
DB
1399 }
1400 else if (flags & SWS_LANCZOS)
1401 {
1402 double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
a64a062f
MN
1403 coeff = (d ? sin(floatd*PI)*sin(floatd*PI/p)/(floatd*floatd*PI*PI/p) : 1.0)*fone;
1404 if (floatd>p) coeff=0;
221b804f
DB
1405 }
1406 else if (flags & SWS_BILINEAR)
1407 {
a64a062f 1408 coeff= (1<<30) - d;
221b804f 1409 if (coeff<0) coeff=0;
a64a062f 1410 coeff *= fone >> 30;
221b804f
DB
1411 }
1412 else if (flags & SWS_SPLINE)
1413 {
1414 double p=-2.196152422706632;
f830d824 1415 coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, floatd) * fone;
221b804f
DB
1416 }
1417 else {
1418 coeff= 0.0; //GCC warning killer
fcc402b1 1419 assert(0);
221b804f
DB
1420 }
1421
1422 filter[i*filterSize + j]= coeff;
1423 xx++;
1424 }
a64a062f 1425 xDstInSrc+= 2*xInc;
221b804f
DB
1426 }
1427 }
1428
1429 /* apply src & dst Filter to filter -> filter2
1430 av_free(filter);
1431 */
fcc402b1 1432 assert(filterSize>0);
221b804f
DB
1433 filter2Size= filterSize;
1434 if (srcFilter) filter2Size+= srcFilter->length - 1;
1435 if (dstFilter) filter2Size+= dstFilter->length - 1;
fcc402b1 1436 assert(filter2Size>0);
a64a062f 1437 filter2= av_mallocz(filter2Size*dstW*sizeof(*filter2));
221b804f
DB
1438
1439 for (i=0; i<dstW; i++)
1440 {
a64a062f 1441 int j, k;
221b804f 1442
a64a062f
MN
1443 if(srcFilter){
1444 for (k=0; k<srcFilter->length; k++){
1445 for (j=0; j<filterSize; j++)
1446 filter2[i*filter2Size + k + j] += srcFilter->coeff[k]*filter[i*filterSize + j];
1447 }
1448 }else{
1449 for (j=0; j<filterSize; j++)
1450 filter2[i*filter2Size + j]= filter[i*filterSize + j];
221b804f 1451 }
a64a062f 1452 //FIXME dstFilter
221b804f
DB
1453
1454 (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
221b804f 1455 }
47b7382d 1456 av_freep(&filter);
221b804f
DB
1457
1458 /* try to reduce the filter-size (step1 find size and shift left) */
86bdf3fd 1459 // Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
221b804f
DB
1460 minFilterSize= 0;
1461 for (i=dstW-1; i>=0; i--)
1462 {
1463 int min= filter2Size;
1464 int j;
a64a062f 1465 int64_t cutOff=0.0;
221b804f
DB
1466
1467 /* get rid off near zero elements on the left by shifting left */
1468 for (j=0; j<filter2Size; j++)
1469 {
1470 int k;
1471 cutOff += FFABS(filter2[i*filter2Size]);
1472
a64a062f 1473 if (cutOff > SWS_MAX_REDUCE_CUTOFF*fone) break;
221b804f 1474
86bdf3fd 1475 /* preserve monotonicity because the core can't handle the filter otherwise */
221b804f
DB
1476 if (i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
1477
f40c7dbb 1478 // move filter coefficients left
221b804f
DB
1479 for (k=1; k<filter2Size; k++)
1480 filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
a64a062f 1481 filter2[i*filter2Size + k - 1]= 0;
221b804f
DB
1482 (*filterPos)[i]++;
1483 }
1484
a64a062f 1485 cutOff=0;
221b804f
DB
1486 /* count near zeros on the right */
1487 for (j=filter2Size-1; j>0; j--)
1488 {
1489 cutOff += FFABS(filter2[i*filter2Size + j]);
1490
a64a062f 1491 if (cutOff > SWS_MAX_REDUCE_CUTOFF*fone) break;
221b804f
DB
1492 min--;
1493 }
1494
1495 if (min>minFilterSize) minFilterSize= min;
1496 }
1497
1498 if (flags & SWS_CPU_CAPS_ALTIVEC) {
1499 // we can handle the special case 4,
1500 // so we don't want to go to the full 8
1501 if (minFilterSize < 5)
8c266f0c
RD
1502 filterAlign = 4;
1503
f40c7dbb
DB
1504 // We really don't want to waste our time
1505 // doing useless computation, so fall back on
1506 // the scalar C code for very small filters.
1507 // Vectorizing is worth it only if you have a
221b804f
DB
1508 // decent-sized vector.
1509 if (minFilterSize < 3)
8c266f0c 1510 filterAlign = 1;
221b804f
DB
1511 }
1512
1513 if (flags & SWS_CPU_CAPS_MMX) {
1514 // special case for unscaled vertical filtering
1515 if (minFilterSize == 1 && filterAlign == 2)
1516 filterAlign= 1;
1517 }
1518
fcc402b1 1519 assert(minFilterSize > 0);
221b804f 1520 filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
fcc402b1 1521 assert(filterSize > 0);
8588e148 1522 filter= av_malloc(filterSize*dstW*sizeof(*filter));
1625216e 1523 if (filterSize >= MAX_FILTER_SIZE*16/((flags&SWS_ACCURATE_RND) ? APCK_SIZE : 16) || !filter)
091d3bdc 1524 goto error;
221b804f
DB
1525 *outFilterSize= filterSize;
1526
1527 if (flags&SWS_PRINT_INFO)
1528 av_log(NULL, AV_LOG_VERBOSE, "SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
1529 /* try to reduce the filter-size (step2 reduce it) */
1530 for (i=0; i<dstW; i++)
1531 {
1532 int j;
1533
1534 for (j=0; j<filterSize; j++)
1535 {
a64a062f 1536 if (j>=filter2Size) filter[i*filterSize + j]= 0;
221b804f 1537 else filter[i*filterSize + j]= filter2[i*filter2Size + j];
88bc5a64 1538 if((flags & SWS_BITEXACT) && j>=minFilterSize)
a64a062f 1539 filter[i*filterSize + j]= 0;
8c266f0c 1540 }
221b804f 1541 }
221b804f
DB
1542
1543
f40c7dbb 1544 //FIXME try to align filterPos if possible
8c266f0c 1545
221b804f
DB
1546 //fix borders
1547 for (i=0; i<dstW; i++)
1548 {
1549 int j;
1550 if ((*filterPos)[i] < 0)
1551 {
f40c7dbb 1552 // move filter coefficients left to compensate for filterPos
221b804f
DB
1553 for (j=1; j<filterSize; j++)
1554 {
1555 int left= FFMAX(j + (*filterPos)[i], 0);
1556 filter[i*filterSize + left] += filter[i*filterSize + j];
1557 filter[i*filterSize + j]=0;
1558 }
1559 (*filterPos)[i]= 0;
bca11e75
MN
1560 }
1561
221b804f
DB
1562 if ((*filterPos)[i] + filterSize > srcW)
1563 {
1564 int shift= (*filterPos)[i] + filterSize - srcW;
f40c7dbb 1565 // move filter coefficients right to compensate for filterPos
221b804f
DB
1566 for (j=filterSize-2; j>=0; j--)
1567 {
1568 int right= FFMIN(j + shift, filterSize-1);
1569 filter[i*filterSize +right] += filter[i*filterSize +j];
1570 filter[i*filterSize +j]=0;
1571 }
1572 (*filterPos)[i]= srcW - filterSize;
1573 }
1574 }
1575
f40c7dbb 1576 // Note the +1 is for the MMX scaler which reads over the end
221b804f
DB
1577 /* align at 16 for AltiVec (needed by hScale_altivec_real) */
1578 *outFilter= av_mallocz(*outFilterSize*(dstW+1)*sizeof(int16_t));
1579
f40c7dbb 1580 /* normalize & store in outFilter */
221b804f
DB
1581 for (i=0; i<dstW; i++)
1582 {
1583 int j;
a64a062f
MN
1584 int64_t error=0;
1585 int64_t sum=0;
221b804f
DB
1586
1587 for (j=0; j<filterSize; j++)
1588 {
1589 sum+= filter[i*filterSize + j];
1590 }
a64a062f 1591 sum= (sum + one/2)/ one;
221b804f
DB
1592 for (j=0; j<*outFilterSize; j++)
1593 {
a64a062f
MN
1594 int64_t v= filter[i*filterSize + j] + error;
1595 int intV= ROUNDED_DIV(v, sum);
221b804f 1596 (*outFilter)[i*(*outFilterSize) + j]= intV;
a64a062f 1597 error= v - intV*sum;
221b804f
DB
1598 }
1599 }
1600
1601 (*filterPos)[dstW]= (*filterPos)[dstW-1]; // the MMX scaler will read over the end
1602 for (i=0; i<*outFilterSize; i++)
1603 {
1604 int j= dstW*(*outFilterSize);
1605 (*outFilter)[j + i]= (*outFilter)[j + i - (*outFilterSize)];
1606 }
1607
091d3bdc
MN
1608 ret=0;
1609error:
221b804f 1610 av_free(filter);
091d3bdc
MN
1611 av_free(filter2);
1612 return ret;
7630f2e0 1613}
31190492 1614
17c613ef 1615#ifdef COMPILE_MMX2
b7dc6f66 1616static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode, int16_t *filter, int32_t *filterPos, int numSplits)
28bf81c9 1617{
221b804f 1618 uint8_t *fragmentA;
d0ce212a
RP
1619 x86_reg imm8OfPShufW1A;
1620 x86_reg imm8OfPShufW2A;
1621 x86_reg fragmentLengthA;
221b804f 1622 uint8_t *fragmentB;
d0ce212a
RP
1623 x86_reg imm8OfPShufW1B;
1624 x86_reg imm8OfPShufW2B;
1625 x86_reg fragmentLengthB;
221b804f
DB
1626 int fragmentPos;
1627
1628 int xpos, i;
1629
1630 // create an optimized horizontal scaling routine
1631
1632 //code fragment
1633
7ad6469e 1634 __asm__ volatile(
221b804f
DB
1635 "jmp 9f \n\t"
1636 // Begin
1637 "0: \n\t"
1638 "movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
1639 "movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
1640 "movd 1(%%"REG_c", %%"REG_S"), %%mm1 \n\t"
1641 "punpcklbw %%mm7, %%mm1 \n\t"
1642 "punpcklbw %%mm7, %%mm0 \n\t"
1643 "pshufw $0xFF, %%mm1, %%mm1 \n\t"
1644 "1: \n\t"
1645 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1646 "2: \n\t"
1647 "psubw %%mm1, %%mm0 \n\t"
1648 "movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
1649 "pmullw %%mm3, %%mm0 \n\t"
1650 "psllw $7, %%mm1 \n\t"
1651 "paddw %%mm1, %%mm0 \n\t"
1652
1653 "movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
1654
1655 "add $8, %%"REG_a" \n\t"
1656 // End
1657 "9: \n\t"
1658// "int $3 \n\t"
86593486
AS
1659 "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
1660 "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
1661 "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
221b804f
DB
1662 "dec %1 \n\t"
1663 "dec %2 \n\t"
1664 "sub %0, %1 \n\t"
1665 "sub %0, %2 \n\t"
86593486 1666 "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
221b804f
DB
1667 "sub %0, %3 \n\t"
1668
1669
1670 :"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
1671 "=r" (fragmentLengthA)
1672 );
1673
7ad6469e 1674 __asm__ volatile(
221b804f
DB
1675 "jmp 9f \n\t"
1676 // Begin
1677 "0: \n\t"
1678 "movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
1679 "movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
1680 "punpcklbw %%mm7, %%mm0 \n\t"
1681 "pshufw $0xFF, %%mm0, %%mm1 \n\t"
1682 "1: \n\t"
1683 "pshufw $0xFF, %%mm0, %%mm0 \n\t"
1684 "2: \n\t"
1685 "psubw %%mm1, %%mm0 \n\t"
1686 "movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
1687 "pmullw %%mm3, %%mm0 \n\t"
1688 "psllw $7, %%mm1 \n\t"
1689 "paddw %%mm1, %%mm0 \n\t"
1690
1691 "movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
1692
1693 "add $8, %%"REG_a" \n\t"
1694 // End
1695 "9: \n\t"
1696// "int $3 \n\t"
86593486
AS
1697 "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
1698 "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
1699 "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
221b804f
DB
1700 "dec %1 \n\t"
1701 "dec %2 \n\t"
1702 "sub %0, %1 \n\t"
1703 "sub %0, %2 \n\t"
86593486 1704 "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
221b804f
DB
1705 "sub %0, %3 \n\t"
1706
1707
1708 :"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
1709 "=r" (fragmentLengthB)
1710 );
1711
1712 xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
1713 fragmentPos=0;
1714
1715 for (i=0; i<dstW/numSplits; i++)
1716 {
1717 int xx=xpos>>16;
1718
1719 if ((i&3) == 0)
1720 {
1721 int a=0;
1722 int b=((xpos+xInc)>>16) - xx;
1723 int c=((xpos+xInc*2)>>16) - xx;
1724 int d=((xpos+xInc*3)>>16) - xx;
1725
1726 filter[i ] = (( xpos & 0xFFFF) ^ 0xFFFF)>>9;
1727 filter[i+1] = (((xpos+xInc ) & 0xFFFF) ^ 0xFFFF)>>9;
1728 filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
1729 filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
1730 filterPos[i/2]= xx;
1731
1732 if (d+1<4)
1733 {
1734 int maxShift= 3-(d+1);
1735 int shift=0;
1736
1737 memcpy(funnyCode + fragmentPos, fragmentB, fragmentLengthB);
1738
1739 funnyCode[fragmentPos + imm8OfPShufW1B]=
1740 (a+1) | ((b+1)<<2) | ((c+1)<<4) | ((d+1)<<6);
1741 funnyCode[fragmentPos + imm8OfPShufW2B]=
1742 a | (b<<2) | (c<<4) | (d<<6);
1743
1744 if (i+3>=dstW) shift=maxShift; //avoid overread
1745 else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
1746
1747 if (shift && i>=shift)
1748 {
1749 funnyCode[fragmentPos + imm8OfPShufW1B]+= 0x55*shift;
1750 funnyCode[fragmentPos + imm8OfPShufW2B]+= 0x55*shift;
1751 filterPos[i/2]-=shift;
1752 }
1753
1754 fragmentPos+= fragmentLengthB;
1755 }
1756 else
1757 {
1758 int maxShift= 3-d;
1759 int shift=0;
1760
1761 memcpy(funnyCode + fragmentPos, fragmentA, fragmentLengthA);
1762
1763 funnyCode[fragmentPos + imm8OfPShufW1A]=
1764 funnyCode[fragmentPos + imm8OfPShufW2A]=
1765 a | (b<<2) | (c<<4) | (d<<6);
1766
1767 if (i+4>=dstW) shift=maxShift; //avoid overread
1768 else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //partial align
1769
1770 if (shift && i>=shift)
1771 {
1772 funnyCode[fragmentPos + imm8OfPShufW1A]+= 0x55*shift;
1773 funnyCode[fragmentPos + imm8OfPShufW2A]+= 0x55*shift;
1774 filterPos[i/2]-=shift;
1775 }
1776
1777 fragmentPos+= fragmentLengthA;
1778 }
1779
1780 funnyCode[fragmentPos]= RET;
1781 }
1782 xpos+=xInc;
1783 }
c662e788 1784 filterPos[((i/2)+1)&(~1)]= xpos>>16; // needed to jump to the next part
28bf81c9 1785}
17c613ef 1786#endif /* COMPILE_MMX2 */
28bf81c9 1787
9b2283cc 1788static void globalInit(void){
31190492
A
1789 // generating tables:
1790 int i;
221b804f
DB
1791 for (i=0; i<768; i++){
1792 int c= av_clip_uint8(i-256);
1793 clip_table[i]=c;
b18ea156 1794 }
516b1f82 1795}
c1b0bfb4 1796
40fa5140 1797static SwsFunc getSwsFunc(SwsContext *c)
14d5c18c 1798{
465477e1 1799#if CONFIG_RUNTIME_CPUDETECT && CONFIG_GPL
40fa5140 1800 int flags = c->flags;
6a4970ab 1801
b63f641e 1802#if ARCH_X86
c14731d8 1803 // ordered per speed fastest first
14d5c18c 1804 if (flags & SWS_CPU_CAPS_MMX2) {
40fa5140 1805 sws_init_swScale_MMX2(c);
221b804f 1806 return swScale_MMX2;
14d5c18c 1807 } else if (flags & SWS_CPU_CAPS_3DNOW) {
40fa5140 1808 sws_init_swScale_3DNow(c);
221b804f 1809 return swScale_3DNow;
14d5c18c 1810 } else if (flags & SWS_CPU_CAPS_MMX) {
40fa5140 1811 sws_init_swScale_MMX(c);
221b804f 1812 return swScale_MMX;
14d5c18c 1813 } else {
40fa5140 1814 sws_init_swScale_C(c);
221b804f 1815 return swScale_C;
14d5c18c 1816 }
28bf81c9
MN
1817
1818#else
b63f641e 1819#if ARCH_PPC
14d5c18c 1820 if (flags & SWS_CPU_CAPS_ALTIVEC) {
40fa5140 1821 sws_init_swScale_altivec(c);
221b804f 1822 return swScale_altivec;
14d5c18c 1823 } else {
40fa5140 1824 sws_init_swScale_C(c);
221b804f 1825 return swScale_C;
14d5c18c 1826 }
a2faa401 1827#endif
40fa5140 1828 sws_init_swScale_C(c);
221b804f 1829 return swScale_C;
b63f641e 1830#endif /* ARCH_X86 */
10a7d216 1831#else //CONFIG_RUNTIME_CPUDETECT
b63f641e 1832#if HAVE_MMX2
40fa5140 1833 sws_init_swScale_MMX2(c);
221b804f 1834 return swScale_MMX2;
f4406ec1 1835#elif HAVE_AMD3DNOW
40fa5140 1836 sws_init_swScale_3DNow(c);
221b804f 1837 return swScale_3DNow;
b63f641e 1838#elif HAVE_MMX
40fa5140 1839 sws_init_swScale_MMX(c);
221b804f 1840 return swScale_MMX;
b63f641e 1841#elif HAVE_ALTIVEC
40fa5140 1842 sws_init_swScale_altivec(c);
221b804f 1843 return swScale_altivec;
28bf81c9 1844#else
40fa5140 1845 sws_init_swScale_C(c);
221b804f 1846 return swScale_C;
28bf81c9 1847#endif
10a7d216 1848#endif //!CONFIG_RUNTIME_CPUDETECT
31190492 1849}
7630f2e0 1850
d4e24275 1851static int PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
221b804f
DB
1852 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1853 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1854 /* Copy Y plane */
1855 if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
1856 memcpy(dst, src[0], srcSliceH*dstStride[0]);
1857 else
1858 {
1859 int i;
7ac40327 1860 const uint8_t *srcPtr= src[0];
221b804f
DB
1861 uint8_t *dstPtr= dst;
1862 for (i=0; i<srcSliceH; i++)
1863 {
1864 memcpy(dstPtr, srcPtr, c->srcW);
1865 srcPtr+= srcStride[0];
1866 dstPtr+= dstStride[0];
1867 }
1868 }
1869 dst = dstParam[1] + dstStride[1]*srcSliceY/2;
1870 if (c->dstFormat == PIX_FMT_NV12)
30c48a0a 1871 interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);
221b804f 1872 else
30c48a0a 1873 interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);
221b804f
DB
1874
1875 return srcSliceH;
0d9f3d85
A
1876}
1877
d4e24275 1878static int PlanarToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
221b804f
DB
1879 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1880 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
0d9f3d85 1881
30c48a0a 1882 yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
fccb9b2b 1883
221b804f 1884 return srcSliceH;
0d9f3d85
A
1885}
1886
caeaabe7 1887static int PlanarToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
221b804f
DB
1888 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1889 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
caeaabe7 1890
30c48a0a 1891 yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
caeaabe7 1892
221b804f 1893 return srcSliceH;
caeaabe7
AB
1894}
1895
a6100f39
BC
1896static int YUV422PToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1897 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1898 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1899
1900 yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
1901
1902 return srcSliceH;
1903}
1904
1905static int YUV422PToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1906 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1907 uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
1908
1909 yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
1910
1911 return srcSliceH;
1912}
1913
0411072e
MN
1914static int YUYV2YUV420Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1915 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1916 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1917 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
1918 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
1919
1920 yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1921
4626ee1a
CS
1922 if (dstParam[3])
1923 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1924
0411072e
MN
1925 return srcSliceH;
1926}
1927
1928static int YUYV2YUV422Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1929 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1930 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
72ef3dd7
MN
1931 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
1932 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
0411072e
MN
1933
1934 yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1935
1936 return srcSliceH;
1937}
1938
1939static int UYVY2YUV420Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1940 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1941 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
1942 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
1943 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
1944
1945 uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1946
4626ee1a
CS
1947 if (dstParam[3])
1948 fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
1949
0411072e
MN
1950 return srcSliceH;
1951}
1952
1953static int UYVY2YUV422Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1954 int srcSliceH, uint8_t* dstParam[], int dstStride[]){
1955 uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
72ef3dd7
MN
1956 uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
1957 uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
0411072e
MN
1958
1959 uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
1960
1961 return srcSliceH;
1962}
1963
49004617
VS
1964static int pal2rgbWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
1965 int srcSliceH, uint8_t* dst[], int dstStride[]){
f5a2c981
CEH
1966 const enum PixelFormat srcFormat= c->srcFormat;
1967 const enum PixelFormat dstFormat= c->dstFormat;
49004617
VS
1968 void (*conv)(const uint8_t *src, uint8_t *dst, long num_pixels,
1969 const uint8_t *palette)=NULL;
1970 int i;
1971 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
1972 uint8_t *srcPtr= src[0];
1973
1974 if (!usePal(srcFormat))
1975 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1976 sws_format_name(srcFormat), sws_format_name(dstFormat));
1977
1978 switch(dstFormat){
522ce957
VS
1979 case PIX_FMT_RGB32 : conv = palette8topacked32; break;
1980 case PIX_FMT_BGR32 : conv = palette8topacked32; break;
1981 case PIX_FMT_BGR32_1: conv = palette8topacked32; break;
1982 case PIX_FMT_RGB32_1: conv = palette8topacked32; break;
1983 case PIX_FMT_RGB24 : conv = palette8topacked24; break;
1984 case PIX_FMT_BGR24 : conv = palette8topacked24; break;
49004617
VS
1985 default: av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
1986 sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
1987 }
1988
1989
1990 for (i=0; i<srcSliceH; i++) {
65f65c30 1991 conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
49004617
VS
1992 srcPtr+= srcStride[0];
1993 dstPtr+= dstStride[0];
1994 }
1995
1996 return srcSliceH;
1997}
1998
9990e426 1999/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
d4e24275 2000static int rgb2rgbWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
221b804f 2001 int srcSliceH, uint8_t* dst[], int dstStride[]){
58e4b706
CEH
2002 const enum PixelFormat srcFormat= c->srcFormat;
2003 const enum PixelFormat dstFormat= c->dstFormat;
221b804f
DB
2004 const int srcBpp= (fmt_depth(srcFormat) + 7) >> 3;
2005 const int dstBpp= (fmt_depth(dstFormat) + 7) >> 3;
2006 const int srcId= fmt_depth(srcFormat) >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
2007 const int dstId= fmt_depth(dstFormat) >> 2;
2008 void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
2009
2010 /* BGR -> BGR */
2011 if ( (isBGR(srcFormat) && isBGR(dstFormat))
2012 || (isRGB(srcFormat) && isRGB(dstFormat))){
2013 switch(srcId | (dstId<<4)){
2014 case 0x34: conv= rgb16to15; break;
2015 case 0x36: conv= rgb24to15; break;
2016 case 0x38: conv= rgb32to15; break;
2017 case 0x43: conv= rgb15to16; break;
2018 case 0x46: conv= rgb24to16; break;
2019 case 0x48: conv= rgb32to16; break;
2020 case 0x63: conv= rgb15to24; break;
2021 case 0x64: conv= rgb16to24; break;
2022 case 0x68: conv= rgb32to24; break;
2023 case 0x83: conv= rgb15to32; break;
2024 case 0x84: conv= rgb16to32; break;
2025 case 0x86: conv= rgb24to32; break;
3f0bc115 2026 default: av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
221b804f
DB
2027 sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
2028 }
2029 }else if ( (isBGR(srcFormat) && isRGB(dstFormat))
2030 || (isRGB(srcFormat) && isBGR(dstFormat))){
2031 switch(srcId | (dstId<<4)){
2032 case 0x33: conv= rgb15tobgr15; break;
2033 case 0x34: conv= rgb16tobgr15; break;
2034 case 0x36: conv= rgb24tobgr15; break;
2035 case 0x38: conv= rgb32tobgr15; break;
2036 case 0x43: conv= rgb15tobgr16; break;
2037 case 0x44: conv= rgb16tobgr16; break;
2038 case 0x46: conv= rgb24tobgr16; break;
2039 case 0x48: conv= rgb32tobgr16; break;
2040 case 0x63: conv= rgb15tobgr24; break;
2041 case 0x64: conv= rgb16tobgr24; break;
2042 case 0x66: conv= rgb24tobgr24; break;
2043 case 0x68: conv= rgb32tobgr24; break;
2044 case 0x83: conv= rgb15tobgr32; break;
2045 case 0x84: conv= rgb16tobgr32; break;
2046 case 0x86: conv= rgb24tobgr32; break;
2047 case 0x88: conv= rgb32tobgr32; break;
3f0bc115 2048 default: av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
221b804f
DB
2049 sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
2050 }
2051 }else{
3f0bc115 2052 av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
221b804f
DB
2053 sws_format_name(srcFormat), sws_format_name(dstFormat));
2054 }
2055
068b0f4f
BF
2056 if(conv)
2057 {
9990e426
MN
2058 uint8_t *srcPtr= src[0];
2059 if(srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1)
2060 srcPtr += ALT32_CORR;
2061
5efaf000 2062 if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0)
9990e426 2063 conv(srcPtr, dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
c4ca31d0 2064 else
221b804f 2065 {
c4ca31d0 2066 int i;
c4ca31d0
BF
2067 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
2068
2069 for (i=0; i<srcSliceH; i++)
2070 {
2071 conv(srcPtr, dstPtr, c->srcW*srcBpp);
2072 srcPtr+= srcStride[0];
2073 dstPtr+= dstStride[0];
2074 }
221b804f
DB
2075 }
2076 }
2077 return srcSliceH;
0d9f3d85
A
2078}
2079
d4e24275 2080static int bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
221b804f
DB
2081 int srcSliceH, uint8_t* dst[], int dstStride[]){
2082
2083 rgb24toyv12(
2084 src[0],
2085 dst[0]+ srcSliceY *dstStride[0],
2086 dst[1]+(srcSliceY>>1)*dstStride[1],
2087 dst[2]+(srcSliceY>>1)*dstStride[2],
2088 c->srcW, srcSliceH,
2089 dstStride[0], dstStride[1], srcStride[0]);
08218e6d
CS
2090 if (dst[3])
2091 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
221b804f 2092 return srcSliceH;
ec22603f
MN
2093}
2094
d4e24275 2095static int yvu9toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
221b804f
DB
2096 int srcSliceH, uint8_t* dst[], int dstStride[]){
2097 int i;
2098
2099 /* copy Y */
2100 if (srcStride[0]==dstStride[0] && srcStride[0] > 0)
2101 memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
2102 else{
2103 uint8_t *srcPtr= src[0];
2104 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
2105
2106 for (i=0; i<srcSliceH; i++)
2107 {
2108 memcpy(dstPtr, srcPtr, c->srcW);
2109 srcPtr+= srcStride[0];
2110 dstPtr+= dstStride[0];
2111 }
2112 }
2113
6268f55b 2114 if (c->dstFormat==PIX_FMT_YUV420P || c->dstFormat==PIX_FMT_YUVA420P){
5f9ae198
VS
2115 planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
2116 srcSliceH >> 2, srcStride[1], dstStride[1]);
2117 planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
2118 srcSliceH >> 2, srcStride[2], dstStride[2]);
221b804f 2119 }else{
5f9ae198
VS
2120 planar2x(src[1], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
2121 srcSliceH >> 2, srcStride[1], dstStride[2]);
2122 planar2x(src[2], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
2123 srcSliceH >> 2, srcStride[2], dstStride[1]);
221b804f 2124 }
08218e6d
CS
2125 if (dst[3])
2126 fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
221b804f 2127 return srcSliceH;
b241cbf2
MN
2128}
2129
b6654a54 2130/* unscaled copy like stuff (assumes nearly identical formats) */
2d35ae56 2131static int packedCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
bc5a0444
LB
2132 int srcSliceH, uint8_t* dst[], int dstStride[])
2133{
2134 if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
2135 memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
2136 else
2137 {
2138 int i;
2139 uint8_t *srcPtr= src[0];
2140 uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
2141 int length=0;
221b804f 2142
bc5a0444
LB
2143 /* universal length finder */
2144 while(length+c->srcW <= FFABS(dstStride[0])
2145 && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
fcc402b1 2146 assert(length!=0);
2d35ae56 2147
bc5a0444 2148 for (i=0; i<srcSliceH; i++)
221b804f 2149 {
bc5a0444
LB
2150 memcpy(dstPtr, srcPtr, length);
2151 srcPtr+= srcStride[0];
2152 dstPtr+= dstStride[0];
221b804f 2153 }
bc5a0444 2154 }
2d35ae56
LB
2155 return srcSliceH;
2156}
bc5a0444 2157
2d35ae56
LB
2158static int planarCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
2159 int srcSliceH, uint8_t* dst[], int dstStride[])
2160{
61a3f379 2161 int plane, i, j;
6268f55b 2162 for (plane=0; plane<4; plane++)
bc5a0444 2163 {
6268f55b
CS
2164 int length= (plane==0 || plane==3) ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
2165 int y= (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
2166 int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
61a3f379
MN
2167 uint8_t *srcPtr= src[plane];
2168 uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
2d35ae56 2169
20ddf5a8 2170 if (!dst[plane]) continue;
6f348086
RD
2171 // ignore palette for GRAY8
2172 if (plane == 1 && !dst[2]) continue;
61a3f379
MN
2173 if (!src[plane] || (plane == 1 && !src[2])){
2174 if(is16BPS(c->dstFormat))
2175 length*=2;
6268f55b 2176 fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);
61a3f379 2177 }else
bc5a0444 2178 {
61a3f379
MN
2179 if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)){
2180 if (!isBE(c->srcFormat)) srcPtr++;
2181 for (i=0; i<height; i++){
2182 for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
2183 srcPtr+= srcStride[plane];
2184 dstPtr+= dstStride[plane];
2185 }
2186 }else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)){
2187 for (i=0; i<height; i++){
2188 for (j=0; j<length; j++){
2189 dstPtr[ j<<1 ] = srcPtr[j];
2190 dstPtr[(j<<1)+1] = srcPtr[j];
2191 }
2192 srcPtr+= srcStride[plane];
2193 dstPtr+= dstStride[plane];
2194 }
2195 }else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)
2196 && isBE(c->srcFormat) != isBE(c->dstFormat)){
2197
2198 for (i=0; i<height; i++){
2199 for (j=0; j<length; j++)
2200 ((uint16_t*)dstPtr)[j] = bswap_16(((uint16_t*)srcPtr)[j]);
2201 srcPtr+= srcStride[plane];
2202 dstPtr+= dstStride[plane];
2203 }
2204 } else if (dstStride[plane]==srcStride[plane] && srcStride[plane] > 0)
bc5a0444 2205 memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]);
221b804f
DB
2206 else
2207 {
61a3f379
MN
2208 if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
2209 length*=2;
bc5a0444 2210 for (i=0; i<height; i++)
221b804f 2211 {
bc5a0444
LB
2212 memcpy(dstPtr, srcPtr, length);
2213 srcPtr+= srcStride[plane];
2214 dstPtr+= dstStride[plane];
221b804f
DB
2215 }
2216 }
2217 }
bc5a0444 2218 }
221b804f 2219 return srcSliceH;
37079906 2220}
28bf81c9 2221
4884b9e5 2222
c7a810cc 2223static void getSubSampleFactors(int *h, int *v, int format){
221b804f
DB
2224 switch(format){
2225 case PIX_FMT_UYVY422:
2226 case PIX_FMT_YUYV422:
2227 *h=1;
2228 *v=0;
2229 break;
2230 case PIX_FMT_YUV420P:
de1275d5
MN
2231 case PIX_FMT_YUV420PLE:
2232 case PIX_FMT_YUV420PBE:
79973335 2233 case PIX_FMT_YUVA420P:
221b804f
DB
2234 case PIX_FMT_GRAY16BE:
2235 case PIX_FMT_GRAY16LE:
2236 case PIX_FMT_GRAY8: //FIXME remove after different subsamplings are fully implemented
2237 case PIX_FMT_NV12:
2238 case PIX_FMT_NV21:
2239 *h=1;
2240 *v=1;
2241 break;
9ba7fe6d
2242 case PIX_FMT_YUV440P:
2243 *h=0;
2244 *v=1;
2245 break;
221b804f
DB
2246 case PIX_FMT_YUV410P:
2247 *h=2;
2248 *v=2;
2249 break;
2250 case PIX_FMT_YUV444P:
de1275d5
MN
2251 case PIX_FMT_YUV444PLE:
2252 case PIX_FMT_YUV444PBE:
221b804f
DB
2253 *h=0;
2254 *v=0;
2255 break;
2256 case PIX_FMT_YUV422P:
de1275d5
MN
2257 case PIX_FMT_YUV422PLE:
2258 case PIX_FMT_YUV422PBE:
221b804f
DB
2259 *h=1;
2260 *v=0;
2261 break;
2262 case PIX_FMT_YUV411P:
2263 *h=2;
2264 *v=0;
2265 break;
2266 default:
2267 *h=0;
2268 *v=0;
2269 break;
2270 }
c7a810cc
MN
2271}
2272
5427e242 2273static uint16_t roundToInt16(int64_t f){
221b804f
DB
2274 int r= (f + (1<<15))>>16;
2275 if (r<-0x7FFF) return 0x8000;
2276 else if (r> 0x7FFF) return 0x7FFF;
2277 else return r;
0481412a
MN
2278}
2279
5427e242 2280int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation){
221b804f
DB
2281 int64_t crv = inv_table[0];
2282 int64_t cbu = inv_table[1];
2283 int64_t cgu = -inv_table[2];
2284 int64_t cgv = -inv_table[3];
2285 int64_t cy = 1<<16;
2286 int64_t oy = 0;
2287
221b804f
DB
2288 memcpy(c->srcColorspaceTable, inv_table, sizeof(int)*4);
2289 memcpy(c->dstColorspaceTable, table, sizeof(int)*4);
2290
2291 c->brightness= brightness;
2292 c->contrast = contrast;
2293 c->saturation= saturation;
2294 c->srcRange = srcRange;
2295 c->dstRange = dstRange;
0c067dc3 2296 if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
221b804f
DB
2297
2298 c->uOffset= 0x0400040004000400LL;
2299 c->vOffset= 0x0400040004000400LL;
2300
2301 if (!srcRange){
2302 cy= (cy*255) / 219;
2303 oy= 16<<16;
2304 }else{
2305 crv= (crv*224) / 255;
2306 cbu= (cbu*224) / 255;
2307 cgu= (cgu*224) / 255;
2308 cgv= (cgv*224) / 255;
2309 }
0481412a 2310
221b804f
DB
2311 cy = (cy *contrast )>>16;
2312 crv= (crv*contrast * saturation)>>32;
2313 cbu= (cbu*contrast * saturation)>>32;
2314 cgu= (cgu*contrast * saturation)>>32;
2315 cgv= (cgv*contrast * saturation)>>32;
0481412a 2316
221b804f 2317 oy -= 256*brightness;
0481412a 2318
221b804f
DB
2319 c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
2320 c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
2321 c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
2322 c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
2323 c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
2324 c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
5427e242 2325
43c16478
MN
2326 c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13);
2327 c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9);
2328 c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13);
2329 c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13);
2330 c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13);
2331 c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13);
f0faee4c 2332
780daf2b 2333 ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
221b804f 2334 //FIXME factorize
a31de956 2335
6634d0ef 2336#ifdef COMPILE_ALTIVEC
221b804f 2337 if (c->flags & SWS_CPU_CAPS_ALTIVEC)
780daf2b 2338 ff_yuv2rgb_init_tables_altivec(c, inv_table, brightness, contrast, saturation);
6a4970ab 2339#endif
221b804f 2340 return 0;
5427e242
MN
2341}
2342
5427e242 2343int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation){
221b804f 2344 if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
5427e242 2345
221b804f
DB
2346 *inv_table = c->srcColorspaceTable;
2347 *table = c->dstColorspaceTable;
2348 *srcRange = c->srcRange;
2349 *dstRange = c->dstRange;
2350 *brightness= c->brightness;
2351 *contrast = c->contrast;
2352 *saturation= c->saturation;
6a4970ab 2353
221b804f 2354 return 0;
0481412a
MN
2355}
2356
13394e8c 2357static int handle_jpeg(enum PixelFormat *format)
44cdb423 2358{
221b804f
DB
2359 switch (*format) {
2360 case PIX_FMT_YUVJ420P:
2361 *format = PIX_FMT_YUV420P;
2362 return 1;
2363 case PIX_FMT_YUVJ422P:
2364 *format = PIX_FMT_YUV422P;
2365 return 1;
2366 case PIX_FMT_YUVJ444P:
2367 *format = PIX_FMT_YUV444P;
2368 return 1;
9ba7fe6d
2369 case PIX_FMT_YUVJ440P:
2370 *format = PIX_FMT_YUV440P;
2371 return 1;
221b804f
DB
2372 default:
2373 return 0;
2374 }
44cdb423
LA
2375}
2376
58e4b706 2377SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int dstW, int dstH, enum PixelFormat dstFormat, int flags,
0020c54c
DB
2378 SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
2379{
221b804f
DB
2380
2381 SwsContext *c;
2382 int i;
2383 int usesVFilter, usesHFilter;
2384 int unscaled, needsDither;
2385 int srcRange, dstRange;
2386 SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
b63f641e 2387#if ARCH_X86
221b804f 2388 if (flags & SWS_CPU_CAPS_MMX)
7ad6469e 2389 __asm__ volatile("emms\n\t"::: "memory");
5cebb24b 2390#endif
516b1f82 2391
10a7d216 2392#if !CONFIG_RUNTIME_CPUDETECT || !CONFIG_GPL //ensure that the flags match the compiled variant if cpudetect is off
d3f3eea9 2393 flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC|SWS_CPU_CAPS_BFIN);
b63f641e 2394#if HAVE_MMX2
221b804f 2395 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
f4406ec1 2396#elif HAVE_AMD3DNOW
221b804f 2397 flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
b63f641e 2398#elif HAVE_MMX
221b804f 2399 flags |= SWS_CPU_CAPS_MMX;
b63f641e 2400#elif HAVE_ALTIVEC
221b804f 2401 flags |= SWS_CPU_CAPS_ALTIVEC;
b63f641e 2402#elif ARCH_BFIN
d3f3eea9 2403 flags |= SWS_CPU_CAPS_BFIN;
516b1f82 2404#endif
10a7d216 2405#endif /* CONFIG_RUNTIME_CPUDETECT */
221b804f 2406 if (clip_table[512] != 255) globalInit();
1b0a4572 2407 if (!rgb15to16) sws_rgb2rgb_init(flags);
221b804f
DB
2408
2409 unscaled = (srcW == dstW && srcH == dstH);
2410 needsDither= (isBGR(dstFormat) || isRGB(dstFormat))
2411 && (fmt_depth(dstFormat))<24
2412 && ((fmt_depth(dstFormat))<(fmt_depth(srcFormat)) || (!(isRGB(srcFormat) || isBGR(srcFormat))));
2413
2414 srcRange = handle_jpeg(&srcFormat);
2415 dstRange = handle_jpeg(&dstFormat);
2416
2417 if (!isSupportedIn(srcFormat))
2418 {
0d6fd5ec 2419 av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as input pixel format\n", sws_format_name(srcFormat));
221b804f
DB
2420 return NULL;
2421 }
2422 if (!isSupportedOut(dstFormat))
2423 {
0d6fd5ec 2424 av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as output pixel format\n", sws_format_name(dstFormat));
221b804f
DB
2425 return NULL;
2426 }
2427
010c00bc
MN
2428 i= flags & ( SWS_POINT
2429 |SWS_AREA
6afc7c19 2430 |SWS_BILINEAR
010c00bc
MN
2431 |SWS_FAST_BILINEAR
2432 |SWS_BICUBIC
2433 |SWS_X
2434 |SWS_GAUSS
2435 |SWS_LANCZOS
2436 |SWS_SINC
2437 |SWS_SPLINE
2438 |SWS_BICUBLIN);
2439 if(!i || (i & (i-1)))
2440 {
f40c7dbb 2441 av_log(NULL, AV_LOG_ERROR, "swScaler: Exactly one scaler algorithm must be chosen\n");
010c00bc
MN
2442 return NULL;
2443 }
010c00bc 2444
221b804f
DB
2445 /* sanity check */
2446 if (srcW<4 || srcH<1 || dstW<8 || dstH<1) //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code
2447 {
2448 av_log(NULL, AV_LOG_ERROR, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
2449 srcW, srcH, dstW, dstH);
2450 return NULL;
2451 }
8b2fce0d 2452 if(srcW > VOFW || dstW > VOFW){
f40c7dbb 2453 av_log(NULL, AV_LOG_ERROR, "swScaler: Compile-time maximum width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n");
8b2fce0d
MN
2454 return NULL;
2455 }
221b804f
DB
2456
2457 if (!dstFilter) dstFilter= &dummyFilter;
2458 if (!srcFilter) srcFilter= &dummyFilter;
2459
2460 c= av_mallocz(sizeof(SwsContext));
2461
2462 c->av_class = &sws_context_class;
2463 c->srcW= srcW;
2464 c->srcH= srcH;
2465 c->dstW= dstW;
2466 c->dstH= dstH;
2467 c->lumXInc= ((srcW<<16) + (dstW>>1))/dstW;
2468 c->lumYInc= ((srcH<<16) + (dstH>>1))/dstH;
2469 c->flags= flags;
2470 c->dstFormat= dstFormat;
2471 c->srcFormat= srcFormat;
2472 c->vRounder= 4* 0x0001000100010001ULL;
2473
2474 usesHFilter= usesVFilter= 0;
1b0a4572
BF
2475 if (dstFilter->lumV && dstFilter->lumV->length>1) usesVFilter=1;
2476 if (dstFilter->lumH && dstFilter->lumH->length>1) usesHFilter=1;
2477 if (dstFilter->chrV && dstFilter->chrV->length>1) usesVFilter=1;
2478 if (dstFilter->chrH && dstFilter->chrH->length>1) usesHFilter=1;
2479 if (srcFilter->lumV && srcFilter->lumV->length>1) usesVFilter=1;
2480 if (srcFilter->lumH && srcFilter->lumH->length>1) usesHFilter=1;
2481 if (srcFilter->chrV && srcFilter->chrV->length>1) usesVFilter=1;
2482 if (srcFilter->chrH && srcFilter->chrH->length>1) usesHFilter=1;
221b804f
DB
2483
2484 getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
2485 getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
2486
f40c7dbb 2487 // reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation
221b804f
DB
2488 if ((isBGR(dstFormat) || isRGB(dstFormat)) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
2489
2490 // drop some chroma lines if the user wants it
2491 c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
2492 c->chrSrcVSubSample+= c->vChrDrop;
2493
f40c7dbb 2494 // drop every other pixel for chroma calculation unless user wants full chroma
221b804f
DB
2495 if ((isBGR(srcFormat) || isRGB(srcFormat)) && !(flags&SWS_FULL_CHR_H_INP)
2496 && srcFormat!=PIX_FMT_RGB8 && srcFormat!=PIX_FMT_BGR8
2497 && srcFormat!=PIX_FMT_RGB4 && srcFormat!=PIX_FMT_BGR4
dfb09bd1 2498 && srcFormat!=PIX_FMT_RGB4_BYTE && srcFormat!=PIX_FMT_BGR4_BYTE
2f60f629 2499 && ((dstW>>c->chrDstHSubSample) <= (srcW>>1) || (flags&(SWS_FAST_BILINEAR|SWS_POINT))))
221b804f
DB
2500 c->chrSrcHSubSample=1;
2501
2502 if (param){
2503 c->param[0] = param[0];
2504 c->param[1] = param[1];
2505 }else{
2506 c->param[0] =
2507 c->param[1] = SWS_PARAM_DEFAULT;
2508 }
2509
2510 c->chrIntHSubSample= c->chrDstHSubSample;
2511 c->chrIntVSubSample= c->chrSrcVSubSample;
2512
2513 // Note the -((-x)>>y) is so that we always round toward +inf.
2514 c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
2515 c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
2516 c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
2517 c->chrDstH= -((-dstH) >> c->chrDstVSubSample);
2518
fa58ba15 2519 sws_setColorspaceDetails(c, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], srcRange, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT] /* FIXME*/, dstRange, 0, 1<<16, 1<<16);
221b804f 2520
f40c7dbb 2521 /* unscaled special cases */
6bc0c792 2522 if (unscaled && !usesHFilter && !usesVFilter && (srcRange == dstRange || isBGR(dstFormat) || isRGB(dstFormat)))
221b804f
DB
2523 {
2524 /* yv12_to_nv12 */
2c897342 2525 if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21))
221b804f
DB
2526 {
2527 c->swScale= PlanarToNV12Wrapper;
2528 }
221b804f 2529 /* yuv2bgr */
2c897342 2530 if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && (isBGR(dstFormat) || isRGB(dstFormat))
9b0d44ef 2531 && !(flags & SWS_ACCURATE_RND) && !(dstH&1))
221b804f 2532 {
780daf2b 2533 c->swScale= ff_yuv2rgb_get_func_ptr(c);
221b804f 2534 }
6a4970ab 2535
6268f55b 2536 if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT))
221b804f
DB
2537 {
2538 c->swScale= yvu9toyv12Wrapper;
2539 }
2540
2541 /* bgr24toYV12 */
6268f55b 2542 if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))
221b804f
DB
2543 c->swScale= bgr24toyv12Wrapper;
2544
f40c7dbb 2545 /* RGB/BGR -> RGB/BGR (no dither needed forms) */
221b804f
DB
2546 if ( (isBGR(srcFormat) || isRGB(srcFormat))
2547 && (isBGR(dstFormat) || isRGB(dstFormat))
2548 && srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
2549 && srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
2550 && srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
2551 && srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
2552 && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
2553 && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
2554 && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
ec1bca2a 2555 && srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE
9990e426
MN
2556 && dstFormat != PIX_FMT_RGB32_1
2557 && dstFormat != PIX_FMT_BGR32_1
736143c8 2558 && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
221b804f
DB
2559 c->swScale= rgb2rgbWrapper;
2560
49004617 2561 if ((usePal(srcFormat) && (
76e9fd01 2562 dstFormat == PIX_FMT_RGB32 ||
522ce957 2563 dstFormat == PIX_FMT_RGB32_1 ||
76e9fd01
VS
2564 dstFormat == PIX_FMT_RGB24 ||
2565 dstFormat == PIX_FMT_BGR32 ||
522ce957 2566 dstFormat == PIX_FMT_BGR32_1 ||
49004617
VS
2567 dstFormat == PIX_FMT_BGR24)))
2568 c->swScale= pal2rgbWrapper;
2569
a6100f39
BC
2570 if (srcFormat == PIX_FMT_YUV422P)
2571 {
2572 if (dstFormat == PIX_FMT_YUYV422)
2573 c->swScale= YUV422PToYuy2Wrapper;
2574 else if (dstFormat == PIX_FMT_UYVY422)
2575 c->swScale= YUV422PToUyvyWrapper;
2576 }
2577
221b804f
DB
2578 /* LQ converters if -sws 0 or -sws 4*/
2579 if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)){
221b804f 2580 /* yv12_to_yuy2 */
2c897342 2581 if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P)
221b804f
DB
2582 {
2583 if (dstFormat == PIX_FMT_YUYV422)
2584 c->swScale= PlanarToYuy2Wrapper;
3b38f1c6 2585 else if (dstFormat == PIX_FMT_UYVY422)
221b804f
DB
2586 c->swScale= PlanarToUyvyWrapper;
2587 }
2588 }
4626ee1a 2589 if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
ff8084cf 2590 c->swScale= YUYV2YUV420Wrapper;
4626ee1a 2591 if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
ff8084cf 2592 c->swScale= UYVY2YUV420Wrapper;
0411072e
MN
2593 if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)
2594 c->swScale= YUYV2YUV422Wrapper;
2595 if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)
2596 c->swScale= UYVY2YUV422Wrapper;
ec22603f 2597
6634d0ef 2598#ifdef COMPILE_ALTIVEC
221b804f 2599 if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
12794f73 2600 !(c->flags & SWS_BITEXACT) &&
3b38f1c6 2601 srcFormat == PIX_FMT_YUV420P) {
221b804f
DB
2602 // unscaled YV12 -> packed YUV, we want speed
2603 if (dstFormat == PIX_FMT_YUYV422)
2604 c->swScale= yv12toyuy2_unscaled_altivec;
3b38f1c6 2605 else if (dstFormat == PIX_FMT_UYVY422)
221b804f
DB
2606 c->swScale= yv12touyvy_unscaled_altivec;
2607 }
b71cf33c
RD
2608#endif
2609
221b804f
DB
2610 /* simple copy */
2611 if ( srcFormat == dstFormat
2c897342 2612 || (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P)
6268f55b 2613 || (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P)
221b804f 2614 || (isPlanarYUV(srcFormat) && isGray(dstFormat))
61a3f379 2615 || (isPlanarYUV(dstFormat) && isGray(srcFormat))
de1275d5
MN
2616 || (isGray(dstFormat) && isGray(srcFormat))
2617 || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)
2618 && c->chrDstHSubSample == c->chrSrcHSubSample
2619 && c->chrDstVSubSample == c->chrSrcVSubSample))
221b804f 2620 {
2d35ae56
LB
2621 if (isPacked(c->srcFormat))
2622 c->swScale= packedCopy;
2623 else /* Planar YUV or gray */
2624 c->swScale= planarCopy;
221b804f 2625 }
b63f641e 2626#if ARCH_BFIN
1ebbfe15
MH
2627 if (flags & SWS_CPU_CAPS_BFIN)
2628 ff_bfin_get_unscaled_swscale (c);
2629#endif
2630
221b804f
DB
2631 if (c->swScale){
2632 if (flags&SWS_PRINT_INFO)
4b0c30b7 2633 av_log(c, AV_LOG_INFO, "using unscaled %s -> %s special converter\n",
221b804f
DB
2634 sws_format_name(srcFormat), sws_format_name(dstFormat));
2635 return c;
2636 }
2637 }
2638
2639 if (flags & SWS_CPU_CAPS_MMX2)
2640 {
2641 c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
2642 if (!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR))
2643 {
2644 if (flags&SWS_PRINT_INFO)
f40c7dbb 2645 av_log(c, AV_LOG_INFO, "output width is not a multiple of 32 -> no MMX2 scaler\n");
221b804f
DB
2646 }
2647 if (usesHFilter) c->canMMX2BeUsed=0;
2648 }
2649 else
2650 c->canMMX2BeUsed=0;
2651
2652 c->chrXInc= ((c->chrSrcW<<16) + (c->chrDstW>>1))/c->chrDstW;
2653 c->chrYInc= ((c->chrSrcH<<16) + (c->chrDstH>>1))/c->chrDstH;
2654
2655 // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
2656 // but only for the FAST_BILINEAR mode otherwise do correct scaling
2657 // n-2 is the last chrominance sample available
86bdf3fd 2658 // this is not perfect, but no one should notice the difference, the more correct variant
221b804f
DB
2659 // would be like the vertical one, but that would require some special code for the
2660 // first and last pixel
2661 if (flags&SWS_FAST_BILINEAR)
2662 {
2663 if (c->canMMX2BeUsed)
2664 {
2665 c->lumXInc+= 20;
2666 c->chrXInc+= 20;
2667 }
f40c7dbb 2668 //we don't use the x86 asm scaler if MMX is available
221b804f
DB
2669 else if (flags & SWS_CPU_CAPS_MMX)
2670 {
2671 c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
2672 c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
2673 }
2674 }
2675
2676 /* precalculate horizontal scaler filter coefficients */
2677 {
2678 const int filterAlign=
2679 (flags & SWS_CPU_CAPS_MMX) ? 4 :
2680 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
2681 1;
2682
2683 initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
2684 srcW , dstW, filterAlign, 1<<14,
2685 (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
2686 srcFilter->lumH, dstFilter->lumH, c->param);
2687 initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
2688 c->chrSrcW, c->chrDstW, filterAlign, 1<<14,
2689 (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
2690 srcFilter->chrH, dstFilter->chrH, c->param);
28bf81c9 2691
dbdae6ec 2692#define MAX_FUNNY_CODE_SIZE 10000
17c613ef 2693#if defined(COMPILE_MMX2)
77a416e8 2694// can't downscale !!!
221b804f
DB
2695 if (c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
2696 {
113ef149 2697#ifdef MAP_ANONYMOUS
16a3717f
RP
2698 c->funnyYCode = mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
2699 c->funnyUVCode = mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
dd35beb2
RP
2700#elif HAVE_VIRTUALALLOC
2701 c->funnyYCode = VirtualAlloc(NULL, MAX_FUNNY_CODE_SIZE, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
2702 c->funnyUVCode = VirtualAlloc(NULL, MAX_FUNNY_CODE_SIZE, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
38d5c282 2703#else
16a3717f 2704 c->funnyYCode = av_malloc(MAX_FUNNY_CODE_SIZE);
221b804f 2705 c->funnyUVCode = av_malloc(MAX_FUNNY_CODE_SIZE);
38d5c282
AJ
2706#endif
2707
221b804f
DB
2708 c->lumMmx2Filter = av_malloc((dstW /8+8)*sizeof(int16_t));
2709 c->chrMmx2Filter = av_malloc((c->chrDstW /4+8)*sizeof(int16_t));
2710 c->lumMmx2FilterPos= av_malloc((dstW /2/8+8)*sizeof(int32_t));
2711 c->chrMmx2FilterPos= av_malloc((c->chrDstW/2/4+8)*sizeof(int32_t));
b7dc6f66 2712
221b804f
DB
2713 initMMX2HScaler( dstW, c->lumXInc, c->funnyYCode , c->lumMmx2Filter, c->lumMmx2FilterPos, 8);
2714 initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode, c->chrMmx2Filter, c->chrMmx2FilterPos, 4);
2715 }
17c613ef 2716#endif /* defined(COMPILE_MMX2) */
f40c7dbb 2717 } // initialize horizontal stuff
28bf81c9
MN
2718
2719
2720
221b804f
DB
2721 /* precalculate vertical scaler filter coefficients */
2722 {
2723 const int filterAlign=
2724 (flags & SWS_CPU_CAPS_MMX) && (flags & SWS_ACCURATE_RND) ? 2 :
2725 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
2726 1;
8c266f0c 2727
221b804f 2728 initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
5fe4aad7 2729 srcH , dstH, filterAlign, (1<<12),
221b804f
DB
2730 (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
2731 srcFilter->lumV, dstFilter->lumV, c->param);
2732 initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
5fe4aad7 2733 c->chrSrcH, c->chrDstH, filterAlign, (1<<12),
221b804f
DB
2734 (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
2735 srcFilter->chrV, dstFilter->chrV, c->param);
d33d485e 2736
b63f641e 2737#if HAVE_ALTIVEC
221b804f
DB
2738 c->vYCoeffsBank = av_malloc(sizeof (vector signed short)*c->vLumFilterSize*c->dstH);
2739 c->vCCoeffsBank = av_malloc(sizeof (vector signed short)*c->vChrFilterSize*c->chrDstH);
2740
2741 for (i=0;i<c->vLumFilterSize*c->dstH;i++) {
2742 int j;
2743 short *p = (short *)&c->vYCoeffsBank[i];
2744 for (j=0;j<8;j++)
2745 p[j] = c->vLumFilter[i];
2746 }
2747
2748 for (i=0;i<c->vChrFilterSize*c->chrDstH;i++) {
2749 int j;
2750 short *p = (short *)&c->vCCoeffsBank[i];
2751 for (j=0;j<8;j++)
2752 p[j] = c->vChrFilter[i];
2753 }
d33d485e 2754#endif
221b804f
DB
2755 }
2756
f40c7dbb 2757 // calculate buffer sizes so that they won't run out while handling these damn slices
221b804f
DB
2758 c->vLumBufSize= c->vLumFilterSize;
2759 c->vChrBufSize= c->vChrFilterSize;
2760 for (i=0; i<dstH; i++)
2761 {
2762 int chrI= i*c->chrDstH / dstH;
2763 int nextSlice= FFMAX(c->vLumFilterPos[i ] + c->vLumFilterSize - 1,
2764 ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
2765
2766 nextSlice>>= c->chrSrcVSubSample;
2767 nextSlice<<= c->chrSrcVSubSample;
2768 if (c->vLumFilterPos[i ] + c->vLumBufSize < nextSlice)
e5091488 2769 c->vLumBufSize= nextSlice - c->vLumFilterPos[i];
221b804f
DB
2770 if (c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
2771 c->vChrBufSize= (nextSlice>>c->chrSrcVSubSample) - c->vChrFilterPos[chrI];
2772 }
2773
2774 // allocate pixbufs (we use dynamic allocation because otherwise we would need to
2775 c->lumPixBuf= av_malloc(c->vLumBufSize*2*sizeof(int16_t*));
2776 c->chrPixBuf= av_malloc(c->vChrBufSize*2*sizeof(int16_t*));
6858492e
CS
2777 if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat))
2778 c->alpPixBuf= av_malloc(c->vLumBufSize*2*sizeof(int16_t*));
f40c7dbb 2779 //Note we need at least one pixel more at the end because of the MMX code (just in case someone wanna replace the 4000/8000)
221b804f
DB
2780 /* align at 16 bytes for AltiVec */
2781 for (i=0; i<c->vLumBufSize; i++)
8b2fce0d 2782 c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= av_mallocz(VOF+1);
221b804f 2783 for (i=0; i<c->vChrBufSize; i++)
8b2fce0d 2784 c->chrPixBuf[i]= c->chrPixBuf[i+c->vChrBufSize]= av_malloc((VOF+1)*2);
6858492e
CS
2785 if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf)
2786 for (i=0; i<c->vLumBufSize; i++)
2787 c->alpPixBuf[i]= c->alpPixBuf[i+c->vLumBufSize]= av_mallocz(VOF+1);
221b804f
DB
2788
2789 //try to avoid drawing green stuff between the right end and the stride end
8b2fce0d
MN
2790 for (i=0; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, (VOF+1)*2);
2791
5a352b14 2792 assert(2*VOFW == VOF);
221b804f 2793
fcc402b1 2794 assert(c->chrDstH <= dstH);
221b804f
DB
2795
2796 if (flags&SWS_PRINT_INFO)
2797 {
28bf81c9 2798#ifdef DITHER1XBPP
3e62b7e3 2799 const char *dither= " dithered";
5521b193 2800#else
3e62b7e3 2801 const char *dither= "";
28bf81c9 2802#endif
221b804f 2803 if (flags&SWS_FAST_BILINEAR)
4b0c30b7 2804 av_log(c, AV_LOG_INFO, "FAST_BILINEAR scaler, ");
221b804f 2805 else if (flags&SWS_BILINEAR)
4b0c30b7 2806 av_log(c, AV_LOG_INFO, "BILINEAR scaler, ");
221b804f 2807 else if (flags&SWS_BICUBIC)
4b0c30b7 2808 av_log(c, AV_LOG_INFO, "BICUBIC scaler, ");
221b804f 2809 else if (flags&SWS_X)
4b0c30b7 2810 av_log(c, AV_LOG_INFO, "Experimental scaler, ");
221b804f 2811 else if (flags&SWS_POINT)
4b0c30b7 2812 av_log(c, AV_LOG_INFO, "Nearest Neighbor / POINT scaler, ");
221b804f 2813 else if (flags&SWS_AREA)
4b0c30b7 2814 av_log(c, AV_LOG_INFO, "Area Averageing scaler, ");
221b804f 2815 else if (flags&SWS_BICUBLIN)
4b0c30b7 2816 av_log(c, AV_LOG_INFO, "luma BICUBIC / chroma BILINEAR scaler, ");
221b804f 2817 else if (flags&SWS_GAUSS)
4b0c30b7 2818 av_log(c, AV_LOG_INFO, "Gaussian scaler, ");
221b804f 2819 else if (flags&SWS_SINC)
4b0c30b7 2820 av_log(c, AV_LOG_INFO, "Sinc scaler, ");
221b804f 2821 else if (flags&SWS_LANCZOS)
4b0c30b7 2822 av_log(c, AV_LOG_INFO, "Lanczos scaler, ");
221b804f 2823 else if (flags&SWS_SPLINE)
4b0c30b7 2824 av_log(c, AV_LOG_INFO, "Bicubic spline scaler, ");
221b804f 2825 else
4b0c30b7 2826 av_log(c, AV_LOG_INFO, "ehh flags invalid?! ");
221b804f
DB
2827
2828 if (dstFormat==PIX_FMT_BGR555 || dstFormat==PIX_FMT_BGR565)
2829 av_log(c, AV_LOG_INFO, "from %s to%s %s ",
2830 sws_format_name(srcFormat), dither, sws_format_name(dstFormat));
2831 else
2832 av_log(c, AV_LOG_INFO, "from %s to %s ",
2833 sws_format_name(srcFormat), sws_format_name(dstFormat));
2834
2835 if (flags & SWS_CPU_CAPS_MMX2)
2836 av_log(c, AV_LOG_INFO, "using MMX2\n");
2837 else if (flags & SWS_CPU_CAPS_3DNOW)
2838 av_log(c, AV_LOG_INFO, "using 3DNOW\n");
2839 else if (flags & SWS_CPU_CAPS_MMX)
2840 av_log(c, AV_LOG_INFO, "using MMX\n");
2841 else if (flags & SWS_CPU_CAPS_ALTIVEC)
2842 av_log(c, AV_LOG_INFO, "using AltiVec\n");
2843 else
2844 av_log(c, AV_LOG_INFO, "using C\n");
2845 }
2846
2847 if (flags & SWS_PRINT_INFO)
2848 {
2849 if (flags & SWS_CPU_CAPS_MMX)
2850 {
2851 if (c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
4b0c30b7 2852 av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
221b804f
DB
2853 else
2854 {
2855 if (c->hLumFilterSize==4)
4b0c30b7 2856 av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal luminance scaling\n");
221b804f 2857 else if (c->hLumFilterSize==8)
4b0c30b7 2858 av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal luminance scaling\n");
221b804f 2859 else
4b0c30b7 2860 av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal luminance scaling\n");
221b804f
DB
2861
2862 if (c->hChrFilterSize==4)
4b0c30b7 2863 av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal chrominance scaling\n");
221b804f 2864 else if (c->hChrFilterSize==8)
4b0c30b7 2865 av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal chrominance scaling\n");
221b804f 2866 else
4b0c30b7 2867 av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal chrominance scaling\n");
221b804f
DB
2868 }
2869 }
2870 else
2871 {
b63f641e 2872#if ARCH_X86
f40c7dbb 2873 av_log(c, AV_LOG_VERBOSE, "using x86 asm scaler for horizontal scaling\n");
28bf81c9 2874#else
221b804f 2875 if (flags & SWS_FAST_BILINEAR)
4b0c30b7 2876 av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR C scaler for horizontal scaling\n");
221b804f 2877 else
4b0c30b7 2878 av_log(c, AV_LOG_VERBOSE, "using C scaler for horizontal scaling\n");
28bf81c9 2879#endif
221b804f
DB
2880 }
2881 if (isPlanarYUV(dstFormat))
2882 {
2883 if (c->vLumFilterSize==1)
4b0c30b7 2884 av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
221b804f 2885 else
4b0c30b7 2886 av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
221b804f
DB
2887 }
2888 else
2889 {
2890 if (c->vLumFilterSize==1 && c->vChrFilterSize==2)
4b0c30b7
BC
2891 av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
2892 " 2-tap scaler for vertical chrominance scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
221b804f 2893 else if (c->vLumFilterSize==2 && c->vChrFilterSize==2)
4b0c30b7 2894 av_log(c, AV_LOG_VERBOSE, "using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
221b804f 2895 else
4b0c30b7 2896 av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
221b804f
DB
2897 }
2898
2899 if (dstFormat==PIX_FMT_BGR24)
f40c7dbb 2900 av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR24 converter\n",
221b804f
DB
2901 (flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"));
2902 else if (dstFormat==PIX_FMT_RGB32)
f40c7dbb 2903 av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR32 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
221b804f 2904 else if (dstFormat==PIX_FMT_BGR565)
f40c7dbb 2905 av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR16 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
221b804f 2906 else if (dstFormat==PIX_FMT_BGR555)
f40c7dbb 2907 av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR15 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
221b804f 2908
4b0c30b7 2909 av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
221b804f
DB
2910 }
2911 if (flags & SWS_PRINT_INFO)
2912 {
f40c7dbb 2913 av_log(c, AV_LOG_DEBUG, "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
221b804f 2914 c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
f40c7dbb 2915 av_log(c, AV_LOG_DEBUG, "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
221b804f
DB
2916 c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
2917 }
2918
40fa5140 2919 c->swScale= getSwsFunc(c);
221b804f 2920 return c;
28bf81c9
MN
2921}
2922
8e86dd12 2923static void reset_ptr(uint8_t* src[], int format){
b87fae9f
MN
2924 if(!isALPHA(format))
2925 src[3]=NULL;
2926 if(!isPlanarYUV(format)){
2927 src[3]=src[2]=NULL;
2928 if( format != PIX_FMT_PAL8
2929 && format != PIX_FMT_RGB8
2930 && format != PIX_FMT_BGR8
2931 && format != PIX_FMT_RGB4_BYTE
2932 && format != PIX_FMT_BGR4_BYTE
2933 )
2934 src[1]= NULL;
2935 }
2936}
2937
28bf81c9 2938/**
56b69633 2939 * swscale wrapper, so we don't need to export the SwsContext.
f40c7dbb 2940 * Assumes planar YUV to be in YUV order instead of YVU.
fccb9b2b 2941 */
703b56fb 2942int sws_scale(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
221b804f
DB
2943 int srcSliceH, uint8_t* dst[], int dstStride[]){
2944 int i;
6208d676 2945 uint8_t* src2[4]= {src[0], src[1], src[2], src[3]};
b87fae9f 2946 uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]};
14623020 2947
221b804f 2948 if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
3f0bc115 2949 av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");
221b804f
DB
2950 return 0;
2951 }
2952 if (c->sliceDir == 0) {
2953 if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
2954 }
2955
49004617 2956 if (usePal(c->srcFormat)){
221b804f 2957 for (i=0; i<256; i++){
14623020
MN
2958 int p, r, g, b,y,u,v;
2959 if(c->srcFormat == PIX_FMT_PAL8){
2960 p=((uint32_t*)(src[1]))[i];
2961 r= (p>>16)&0xFF;
2962 g= (p>> 8)&0xFF;
2963 b= p &0xFF;
2964 }else if(c->srcFormat == PIX_FMT_RGB8){
2965 r= (i>>5 )*36;
2966 g= ((i>>2)&7)*36;
2967 b= (i&3 )*85;
2968 }else if(c->srcFormat == PIX_FMT_BGR8){
2969 b= (i>>6 )*85;
2970 g= ((i>>3)&7)*36;
2971 r= (i&7 )*36;
2972 }else if(c->srcFormat == PIX_FMT_RGB4_BYTE){
2973 r= (i>>3 )*255;
2974 g= ((i>>1)&3)*85;
2975 b= (i&1 )*255;
75add6fb
VS
2976 }else {
2977 assert(c->srcFormat == PIX_FMT_BGR4_BYTE);
14623020
MN
2978 b= (i>>3 )*255;
2979 g= ((i>>1)&3)*85;
2980 r= (i&1 )*255;
2981 }
cbcb408f
MN
2982 y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
2983 u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
2984 v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
49004617 2985 c->pal_yuv[i]= y + (u<<8) + (v<<16);
522ce957
VS
2986
2987
2988 switch(c->dstFormat) {
2989 case PIX_FMT_BGR32:
2990#ifndef WORDS_BIGENDIAN
2991 case PIX_FMT_RGB24:
2992#endif
2993 c->pal_rgb[i]= r + (g<<8) + (b<<16);
2994 break;
2995 case PIX_FMT_BGR32_1:
2996#ifdef WORDS_BIGENDIAN
2997 case PIX_FMT_BGR24:
2998#endif
2999 c->pal_rgb[i]= (r + (g<<8) + (b<<16)) << 8;
3000 break;
3001 case PIX_FMT_RGB32_1:
3002#ifdef WORDS_BIGENDIAN
3003 case PIX_FMT_RGB24:
3004#endif
3005 c->pal_rgb[i]= (b + (g<<8) + (r<<16)) << 8;
3006 break;
3007 case PIX_FMT_RGB32:
3008#ifndef WORDS_BIGENDIAN
3009 case PIX_FMT_BGR24:
3010#endif
3011 default:
3012 c->pal_rgb[i]= b + (g<<8) + (r<<16);
3013 }
21c08a3f 3014 }
221b804f 3015 }
21c08a3f 3016
221b804f
DB
3017 // copy strides, so they can safely be modified
3018 if (c->sliceDir == 1) {
3019 // slices go from top to bottom
6208d676
CS
3020 int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]};
3021 int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};
b87fae9f
MN
3022
3023 reset_ptr(src2, c->srcFormat);
3024 reset_ptr(dst2, c->dstFormat);
3025
3026 return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2);
221b804f
DB
3027 } else {
3028 // slices go from bottom to top => we flip the image internally
6208d676
CS
3029 int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3]};
3030 int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3]};
221b804f
DB
3031
3032 src2[0] += (srcSliceH-1)*srcStride[0];
49004617 3033 if (!usePal(c->srcFormat))
221b804f
DB
3034 src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
3035 src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
6208d676 3036 src2[3] += (srcSliceH-1)*srcStride[3];
b87fae9f
MN
3037 dst2[0] += ( c->dstH -1)*dstStride[0];
3038 dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1];
3039 dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2];
3040 dst2[3] += ( c->dstH -1)*dstStride[3];
3041
3042 reset_ptr(src2, c->srcFormat);
3043 reset_ptr(dst2, c->dstFormat);
221b804f
DB
3044
3045 return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
3046 }
fccb9b2b
MN
3047}
3048
c099766f 3049#if LIBSWSCALE_VERSION_MAJOR < 1
703b56fb 3050int sws_scale_ordered(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
221b804f
DB
3051 int srcSliceH, uint8_t* dst[], int dstStride[]){
3052 return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
d4e24275 3053}
c099766f 3054#endif
d4e24275 3055
6a4970ab 3056SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
221b804f
DB
3057 float lumaSharpen, float chromaSharpen,
3058 float chromaHShift, float chromaVShift,
3059 int verbose)
e21206a8 3060{
221b804f
DB
3061 SwsFilter *filter= av_malloc(sizeof(SwsFilter));
3062
3063 if (lumaGBlur!=0.0){
3064 filter->lumH= sws_getGaussianVec(lumaGBlur, 3.0);
3065 filter->lumV= sws_getGaussianVec(lumaGBlur, 3.0);
3066 }else{
3067 filter->lumH= sws_getIdentityVec();
3068 filter->lumV= sws_getIdentityVec();
3069 }
3070
3071 if (chromaGBlur!=0.0){
3072 filter->chrH= sws_getGaussianVec(chromaGBlur, 3.0);
3073 filter->chrV= sws_getGaussianVec(chromaGBlur, 3.0);
3074 }else{
3075 filter->chrH= sws_getIdentityVec();
3076 filter->chrV= sws_getIdentityVec();
3077 }
3078
3079 if (chromaSharpen!=0.0){
3080 SwsVector *id= sws_getIdentityVec();
3081 sws_scaleVec(filter->chrH, -chromaSharpen);
3082 sws_scaleVec(filter->chrV, -chromaSharpen);
3083 sws_addVec(filter->chrH, id);
3084 sws_addVec(filter->chrV, id);
3085 sws_freeVec(id);
3086 }
3087
3088 if (lumaSharpen!=0.0){
3089 SwsVector *id= sws_getIdentityVec();
3090 sws_scaleVec(filter->lumH, -lumaSharpen);
3091 sws_scaleVec(filter->lumV, -lumaSharpen);
3092 sws_addVec(filter->lumH, id);
3093 sws_addVec(filter->lumV, id);
3094 sws_freeVec(id);
3095 }
3096
3097 if (chromaHShift != 0.0)
3098 sws_shiftVec(filter->chrH, (int)(chromaHShift+0.5));
3099
3100 if (chromaVShift != 0.0)
3101 sws_shiftVec(filter->chrV, (int)(chromaVShift+0.5));
3102
3103 sws_normalizeVec(filter->chrH, 1.0);
3104 sws_normalizeVec(filter->chrV, 1.0);
3105 sws_normalizeVec(filter->lumH, 1.0);
3106 sws_normalizeVec(filter->lumV, 1.0);
3107
e14ff1e6
SS
3108 if (verbose) sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
3109 if (verbose) sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
221b804f
DB
3110
3111 return filter;
e21206a8
MN
3112}
3113
d4e24275 3114SwsVector *sws_getGaussianVec(double variance, double quality){
221b804f
DB
3115 const int length= (int)(variance*quality + 0.5) | 1;
3116 int i;
3117 double *coeff= av_malloc(length*sizeof(double));
3118 double middle= (length-1)*0.5;
3119 SwsVector *vec= av_malloc(sizeof(SwsVector));
c7f822d9 3120
221b804f
DB
3121 vec->coeff= coeff;
3122 vec->length= length;
28bf81c9 3123
221b804f
DB
3124 for (i=0; i<length; i++)
3125 {
3126 double dist= i-middle;
e5091488 3127 coeff[i]= exp(-dist*dist/(2*variance*variance)) / sqrt(2*variance*PI);
221b804f 3128 }
28bf81c9 3129
221b804f 3130 sws_normalizeVec(vec, 1.0);
c7f822d9 3131
221b804f 3132 return vec;
28bf81c9
MN
3133}
3134
d4e24275 3135SwsVector *sws_getConstVec(double c, int length){
221b804f
DB
3136 int i;
3137 double *coeff= av_malloc(length*sizeof(double));
3138 SwsVector *vec= av_malloc(sizeof(SwsVector));
5521b193 3139
221b804f
DB
3140 vec->coeff= coeff;
3141 vec->length= length;
5521b193 3142
221b804f
DB
3143 for (i=0; i<length; i++)
3144 coeff[i]= c;
5521b193 3145
221b804f 3146 return vec;
5521b193
MN
3147}
3148
3149
d4e24275 3150SwsVector *sws_getIdentityVec(void){
221b804f 3151 return sws_getConstVec(1.0, 1);
c7f822d9
MN
3152}
3153
2e728364 3154double sws_dcVec(SwsVector *a){
221b804f
DB
3155 int i;
3156 double sum=0;
28bf81c9 3157
221b804f
DB
3158 for (i=0; i<a->length; i++)
3159 sum+= a->coeff[i];
28bf81c9 3160
221b804f 3161 return sum;
28bf81c9
MN
3162}
3163
d4e24275 3164void sws_scaleVec(SwsVector *a, double scalar){
221b804f 3165 int i;
c7f822d9 3166
221b804f
DB
3167 for (i=0; i<a->length; i++)
3168 a->coeff[i]*= scalar;
c7f822d9
MN
3169}
3170
2e728364 3171void sws_normalizeVec(SwsVector *a, double height){
221b804f 3172 sws_scaleVec(a, height/sws_dcVec(a));
2e728364
MN
3173}
3174
d4e24275 3175static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b){
221b804f
DB
3176 int length= a->length + b->length - 1;
3177 double *coeff= av_malloc(length*sizeof(double));
3178 int i, j;
3179 SwsVector *vec= av_malloc(sizeof(SwsVector));
c7f822d9 3180
221b804f
DB
3181 vec->coeff= coeff;
3182 vec->length= length;
28bf81c9 3183
221b804f 3184 for (i=0; i<length; i++) coeff[i]= 0.0;
28bf81c9 3185
221b804f
DB
3186 for (i=0; i<a->length; i++)
3187 {
3188 for (j=0; j<b->length; j++)
3189 {
3190 coeff[i+j]+= a->coeff[i]*b->coeff[j];
3191 }
3192 }
28bf81c9 3193
221b804f 3194 return vec;
28bf81c9
MN
3195}
3196
d4e24275 3197static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b){
221b804f
DB
3198 int length= FFMAX(a->length, b->length);
3199 double *coeff= av_malloc(length*sizeof(double));
3200 int i;
3201 SwsVector *vec= av_malloc(sizeof(SwsVector));
c7f822d9 3202
221b804f
DB
3203 vec->coeff= coeff;
3204 vec->length= length;
28bf81c9 3205
221b804f 3206 for (i=0; i<length; i++) coeff[i]= 0.0;
28bf81c9 3207
221b804f
DB
3208 for (i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
3209 for (i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
c7f822d9 3210
221b804f 3211 return vec;
28bf81c9 3212}
c7f822d9 3213
d4e24275 3214static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b){
221b804f
DB
3215 int length= FFMAX(a->length, b->length);
3216 double *coeff= av_malloc(length*sizeof(double));
3217 int i;
3218 SwsVector *vec= av_malloc(sizeof(SwsVector));
c7f822d9 3219
221b804f
DB
3220 vec->coeff= coeff;
3221 vec->length= length;
c7f822d9 3222
221b804f 3223 for (i=0; i<length; i++) coeff[i]= 0.0;
c7f822d9 3224
221b804f
DB
3225 for (i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
3226 for (i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]-= b->coeff[i];
c7f822d9 3227
221b804f 3228 return vec;
c7f822d9
MN
3229}
3230
3231/* shift left / or right if "shift" is negative */
d4e24275 3232static SwsVector *sws_getShiftedVec(SwsVector *a, int shift){
221b804f
DB
3233 int length= a->length + FFABS(shift)*2;
3234 double *coeff= av_malloc(length*sizeof(double));
3235 int i;
3236 SwsVector *vec= av_malloc(sizeof(SwsVector));
c7f822d9 3237
221b804f
DB
3238 vec->coeff= coeff;
3239 vec->length= length;
c7f822d9 3240
221b804f 3241 for (i=0; i<length; i++) coeff[i]= 0.0;
c7f822d9 3242
221b804f
DB
3243 for (i=0; i<a->length; i++)
3244 {
3245 coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
3246 }
c7f822d9 3247
221b804f 3248 return vec;
c7f822d9
MN
3249}
3250
d4e24275 3251void sws_shiftVec(SwsVector *a, int shift){
221b804f
DB
3252 SwsVector *shifted= sws_getShiftedVec(a, shift);
3253 av_free(a->coeff);
3254 a->coeff= shifted->coeff;
3255 a->length= shifted->length;
3256 av_free(shifted);
5cebb24b
MN
3257}
3258
d4e24275 3259void sws_addVec(SwsVector *a, SwsVector *b){
221b804f
DB
3260 SwsVector *sum= sws_sumVec(a, b);
3261 av_free(a->coeff);
3262 a->coeff= sum->coeff;
3263 a->length= sum->length;
3264 av_free(sum);
5cebb24b
MN
3265}
3266
d4e24275 3267void sws_subVec(SwsVector *a, SwsVector *b){
221b804f
DB
3268 SwsVector *diff= sws_diffVec(a, b);
3269 av_free(a->coeff);
3270 a->coeff= diff->coeff;
3271 a->length= diff->length;
3272 av_free(diff);
5cebb24b
MN
3273}
3274
d4e24275 3275void sws_convVec(SwsVector *a, SwsVector *b){
221b804f
DB
3276 SwsVector *conv= sws_getConvVec(a, b);
3277 av_free(a->coeff);
3278 a->coeff= conv->coeff;
3279 a->length= conv->length;
3280 av_free(conv);
5cebb24b
MN
3281}
3282
d4e24275 3283SwsVector *sws_cloneVec(SwsVector *a){
221b804f
DB
3284 double *coeff= av_malloc(a->length*sizeof(double));
3285 int i;
3286 SwsVector *vec= av_malloc(sizeof(SwsVector));
5cebb24b 3287
221b804f
DB
3288 vec->coeff= coeff;
3289 vec->length= a->length;
5cebb24b 3290
221b804f 3291 for (i=0; i<a->length; i++) coeff[i]= a->coeff[i];
5cebb24b 3292
221b804f 3293 return vec;
5cebb24b
MN
3294}
3295
26b40a65 3296void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level){
221b804f
DB
3297 int i;
3298 double max=0;
3299 double min=0;
3300 double range;
3301
3302 for (i=0; i<a->length; i++)
3303 if (a->coeff[i]>max) max= a->coeff[i];
3304
3305 for (i=0; i<a->length; i++)
3306 if (a->coeff[i]<min) min= a->coeff[i];
3307
3308 range= max - min;
3309
3310 for (i=0; i<a->length; i++)
3311 {
3312 int x= (int)((a->coeff[i]-min)*60.0/range +0.5);
26b40a65
SS
3313 av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
3314 for (;x>0; x--) av_log(log_ctx, log_level, " ");
3315 av_log(log_ctx, log_level, "|\n");
221b804f 3316 }
c7f822d9
MN
3317}
3318
26b40a65
SS
3319#if LIBSWSCALE_VERSION_MAJOR < 1
3320void sws_printVec(SwsVector *a){
3321 sws_printVec2(a, NULL, AV_LOG_DEBUG);
3322}
3323#endif
3324
d4e24275 3325void sws_freeVec(SwsVector *a){
221b804f 3326 if (!a) return;
47b7382d 3327 av_freep(&a->coeff);
221b804f
DB
3328 a->length=0;
3329 av_free(a);
c7f822d9
MN
3330}
3331
e21206a8 3332void sws_freeFilter(SwsFilter *filter){
221b804f 3333 if (!filter) return;
e21206a8 3334
221b804f
DB
3335 if (filter->lumH) sws_freeVec(filter->lumH);
3336 if (filter->lumV) sws_freeVec(filter->lumV);