Relicense from LGPL 2.1 to LGPL 2.1 or later with the authors' permission.
[libav.git] / libswscale / swscale_internal.h
CommitLineData
5427e242 1/*
d026b45e
DB
2 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
807e0c66
LA
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
d026b45e
DB
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
807e0c66
LA
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
d026b45e 15 *
807e0c66
LA
16 * You should have received a copy of the GNU Lesser General Public
17 * License 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 */
5427e242 20
0eaf5235
SS
21#ifndef SWSCALE_SWSCALE_INTERNAL_H
22#define SWSCALE_SWSCALE_INTERNAL_H
5427e242 23
4706949c
DB
24#include "config.h"
25
f2015f0c
AB
26#ifdef HAVE_ALTIVEC_H
27#include <altivec.h>
28#endif
29
83da2c6f 30#include "libavutil/avutil.h"
94c4def2 31
5427e242
MN
32#define MAX_FILTER_SIZE 256
33
8b2fce0d 34#define VOFW 2048
710af50e 35#define VOF (VOFW*2)
8b2fce0d 36
9990e426
MN
37#ifdef WORDS_BIGENDIAN
38#define ALT32_CORR (-1)
39#else
40#define ALT32_CORR 1
41#endif
42
d4e24275 43typedef int (*SwsFunc)(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
5427e242
MN
44 int srcSliceH, uint8_t* dst[], int dstStride[]);
45
8a322796 46/* This struct should be aligned on at least a 32-byte boundary. */
5427e242 47typedef struct SwsContext{
221b804f
DB
48 /**
49 * info on struct for av_log
50 */
635a8cd2 51 const AVClass *av_class;
221b804f
DB
52
53 /**
56b69633
DB
54 * Note that src, dst, srcStride, dstStride will be copied in the
55 * sws_scale() wrapper so they can be freely modified here.
221b804f
DB
56 */
57 SwsFunc swScale;
58 int srcW, srcH, dstH;
59 int chrSrcW, chrSrcH, chrDstW, chrDstH;
60 int lumXInc, chrXInc;
61 int lumYInc, chrYInc;
62 int dstFormat, srcFormat; ///< format 4:2:0 type is always YV12
63 int origDstFormat, origSrcFormat; ///< format
64 int chrSrcHSubSample, chrSrcVSubSample;
65 int chrIntHSubSample, chrIntVSubSample;
66 int chrDstHSubSample, chrDstVSubSample;
67 int vChrDrop;
68 int sliceDir;
69 double param[2];
70
71 int16_t **lumPixBuf;
72 int16_t **chrPixBuf;
73 int16_t *hLumFilter;
74 int16_t *hLumFilterPos;
75 int16_t *hChrFilter;
76 int16_t *hChrFilterPos;
77 int16_t *vLumFilter;
78 int16_t *vLumFilterPos;
79 int16_t *vChrFilter;
80 int16_t *vChrFilterPos;
81
8a322796 82 uint8_t formatConvBuffer[VOF]; //FIXME dynamic allocation, but we have to change a lot of code for this to be useful
221b804f
DB
83
84 int hLumFilterSize;
85 int hChrFilterSize;
86 int vLumFilterSize;
87 int vChrFilterSize;
88 int vLumBufSize;
89 int vChrBufSize;
90
91 uint8_t *funnyYCode;
92 uint8_t *funnyUVCode;
93 int32_t *lumMmx2FilterPos;
94 int32_t *chrMmx2FilterPos;
95 int16_t *lumMmx2Filter;
96 int16_t *chrMmx2Filter;
97
98 int canMMX2BeUsed;
99
100 int lastInLumBuf;
101 int lastInChrBuf;
102 int lumBufIndex;
103 int chrBufIndex;
104 int dstY;
105 int flags;
106 void * yuvTable; // pointer to the yuv->rgb table start so it can be freed()
107 uint8_t * table_rV[256];
108 uint8_t * table_gU[256];
109 int table_gV[256];
110 uint8_t * table_bU[256];
111
112 //Colorspace stuff
113 int contrast, brightness, saturation; // for sws_getColorspaceDetails
114 int srcColorspaceTable[4];
115 int dstColorspaceTable[4];
116 int srcRange, dstRange;
117
118#define RED_DITHER "0*8"
119#define GREEN_DITHER "1*8"
120#define BLUE_DITHER "2*8"
121#define Y_COEFF "3*8"
122#define VR_COEFF "4*8"
123#define UB_COEFF "5*8"
124#define VG_COEFF "6*8"
125#define UG_COEFF "7*8"
126#define Y_OFFSET "8*8"
127#define U_OFFSET "9*8"
128#define V_OFFSET "10*8"
8bae9ddc
MN
129#define LUM_MMX_FILTER_OFFSET "11*8"
130#define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
8a322796 131#define DSTW_OFFSET "11*8+4*4*256*2" //do not change, it is hardcoded in the ASM
221b804f
DB
132#define ESP_OFFSET "11*8+4*4*256*2+8"
133#define VROUNDER_OFFSET "11*8+4*4*256*2+16"
134#define U_TEMP "11*8+4*4*256*2+24"
135#define V_TEMP "11*8+4*4*256*2+32"
136
137 uint64_t redDither __attribute__((aligned(8)));
138 uint64_t greenDither __attribute__((aligned(8)));
139 uint64_t blueDither __attribute__((aligned(8)));
140
141 uint64_t yCoeff __attribute__((aligned(8)));
142 uint64_t vrCoeff __attribute__((aligned(8)));
143 uint64_t ubCoeff __attribute__((aligned(8)));
144 uint64_t vgCoeff __attribute__((aligned(8)));
145 uint64_t ugCoeff __attribute__((aligned(8)));
146 uint64_t yOffset __attribute__((aligned(8)));
147 uint64_t uOffset __attribute__((aligned(8)));
148 uint64_t vOffset __attribute__((aligned(8)));
149 int32_t lumMmxFilter[4*MAX_FILTER_SIZE];
150 int32_t chrMmxFilter[4*MAX_FILTER_SIZE];
151 int dstW;
152 uint64_t esp __attribute__((aligned(8)));
153 uint64_t vRounder __attribute__((aligned(8)));
154 uint64_t u_temp __attribute__((aligned(8)));
155 uint64_t v_temp __attribute__((aligned(8)));
a31de956
MN
156
157#ifdef HAVE_ALTIVEC
158
159 vector signed short CY;
160 vector signed short CRV;
161 vector signed short CBU;
162 vector signed short CGU;
163 vector signed short CGV;
164 vector signed short OY;
165 vector unsigned short CSHIFT;
221b804f 166 vector signed short *vYCoeffsBank, *vCCoeffsBank;
a31de956
MN
167
168#endif
169
d3f3eea9 170
721d5e3b 171#ifdef ARCH_BFIN
d3f3eea9
MH
172 uint32_t oy __attribute__((aligned(4)));
173 uint32_t oc __attribute__((aligned(4)));
174 uint32_t zero __attribute__((aligned(4)));
175 uint32_t cy __attribute__((aligned(4)));
176 uint32_t crv __attribute__((aligned(4)));
177 uint32_t rmask __attribute__((aligned(4)));
178 uint32_t cbu __attribute__((aligned(4)));
179 uint32_t bmask __attribute__((aligned(4)));
180 uint32_t cgu __attribute__((aligned(4)));
181 uint32_t cgv __attribute__((aligned(4)));
182 uint32_t gmask __attribute__((aligned(4)));
183#endif
184
90c1d7b4
DB
185#ifdef HAVE_VIS
186 uint64_t sparc_coeffs[10] __attribute__((aligned(8)));
187#endif
d3f3eea9 188
5427e242
MN
189} SwsContext;
190//FIXME check init (where 0)
5427e242 191
5427e242
MN
192SwsFunc yuv2rgb_get_func_ptr (SwsContext *c);
193int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation);
194
c95a3a9f
DB
195void yuv2rgb_altivec_init_tables (SwsContext *c, const int inv_table[4],int brightness,int contrast, int saturation);
196SwsFunc yuv2rgb_init_altivec (SwsContext *c);
197void altivec_yuv2packedX (SwsContext *c,
198 int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
199 int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
200 uint8_t *dest, int dstW, int dstY);
201
8055ede6 202const char *sws_format_name(int format);
94c4def2 203
e9e12f0e 204//FIXME replace this with something faster
9d9de37d
IP
205#define isPlanarYUV(x) ( \
206 (x)==PIX_FMT_YUV410P \
207 || (x)==PIX_FMT_YUV420P \
208 || (x)==PIX_FMT_YUV411P \
209 || (x)==PIX_FMT_YUV422P \
210 || (x)==PIX_FMT_YUV444P \
9ba7fe6d 211 || (x)==PIX_FMT_YUV440P \
9d9de37d
IP
212 || (x)==PIX_FMT_NV12 \
213 || (x)==PIX_FMT_NV21 \
214 )
215#define isYUV(x) ( \
216 (x)==PIX_FMT_UYVY422 \
217 || (x)==PIX_FMT_YUYV422 \
218 || isPlanarYUV(x) \
219 )
220#define isGray(x) ( \
221 (x)==PIX_FMT_GRAY8 \
222 || (x)==PIX_FMT_GRAY16BE \
223 || (x)==PIX_FMT_GRAY16LE \
224 )
225#define isGray16(x) ( \
226 (x)==PIX_FMT_GRAY16BE \
227 || (x)==PIX_FMT_GRAY16LE \
228 )
229#define isRGB(x) ( \
d52337af 230 (x)==PIX_FMT_RGB32 \
9990e426 231 || (x)==PIX_FMT_RGB32_1 \
9d9de37d
IP
232 || (x)==PIX_FMT_RGB24 \
233 || (x)==PIX_FMT_RGB565 \
234 || (x)==PIX_FMT_RGB555 \
235 || (x)==PIX_FMT_RGB8 \
236 || (x)==PIX_FMT_RGB4 \
237 || (x)==PIX_FMT_RGB4_BYTE \
238 || (x)==PIX_FMT_MONOBLACK \
239 )
240#define isBGR(x) ( \
d52337af 241 (x)==PIX_FMT_BGR32 \
9990e426 242 || (x)==PIX_FMT_BGR32_1 \
9d9de37d
IP
243 || (x)==PIX_FMT_BGR24 \
244 || (x)==PIX_FMT_BGR565 \
245 || (x)==PIX_FMT_BGR555 \
246 || (x)==PIX_FMT_BGR8 \
247 || (x)==PIX_FMT_BGR4 \
248 || (x)==PIX_FMT_BGR4_BYTE \
249 || (x)==PIX_FMT_MONOBLACK \
250 )
e9e12f0e
LA
251
252static inline int fmt_depth(int fmt)
253{
254 switch(fmt) {
255 case PIX_FMT_BGRA:
256 case PIX_FMT_ABGR:
257 case PIX_FMT_RGBA:
258 case PIX_FMT_ARGB:
259 return 32;
260 case PIX_FMT_BGR24:
261 case PIX_FMT_RGB24:
262 return 24;
263 case PIX_FMT_BGR565:
264 case PIX_FMT_RGB565:
4884b9e5
KS
265 case PIX_FMT_GRAY16BE:
266 case PIX_FMT_GRAY16LE:
e9e12f0e
LA
267 return 16;
268 case PIX_FMT_BGR555:
269 case PIX_FMT_RGB555:
270 return 15;
271 case PIX_FMT_BGR8:
272 case PIX_FMT_RGB8:
273 return 8;
274 case PIX_FMT_BGR4:
275 case PIX_FMT_RGB4:
276 case PIX_FMT_BGR4_BYTE:
277 case PIX_FMT_RGB4_BYTE:
278 return 4;
279 case PIX_FMT_MONOBLACK:
280 return 1;
281 default:
282 return 0;
283 }
284}
285
0cb25594
CEH
286extern const DECLARE_ALIGNED(8, uint64_t, ff_dither4[2]);
287extern const DECLARE_ALIGNED(8, uint64_t, ff_dither8[2]);
288
e40b183d
LB
289extern const AVClass sws_context_class;
290
0eaf5235 291#endif /* SWSCALE_SWSCALE_INTERNAL_H */