Change license headers to say 'FFmpeg' instead of 'this program/this library'
[libav.git] / libswscale / swscale_internal.h
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1/*
2 Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
660204c6 16 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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17
18 the C code (not assembly, mmx, ...) of the swscaler which has been written
19 by Michael Niedermayer can be used under the LGPL license too
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20*/
21
22#ifndef SWSCALE_INTERNAL_H
23#define SWSCALE_INTERNAL_H
24
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25#ifdef HAVE_ALTIVEC_H
26#include <altivec.h>
27#endif
28
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29#include "avutil.h"
30
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31#ifdef CONFIG_DARWIN
32#define AVV(x...) (x)
33#else
34#define AVV(x...) {x}
35#endif
36
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37#define MSG_WARN(args...) av_log(NULL, AV_LOG_DEBUG, ##args )
38#define MSG_FATAL(args...) av_log(NULL, AV_LOG_ERROR, ##args )
39#define MSG_ERR(args...) av_log(NULL, AV_LOG_ERROR, ##args )
40#define MSG_V(args...) av_log(NULL, AV_LOG_INFO, ##args )
41#define MSG_DBG2(args...) av_log(NULL, AV_LOG_DEBUG, ##args )
42#define MSG_INFO(args...) av_log(NULL, AV_LOG_INFO, ##args )
b706b007 43
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44#define MAX_FILTER_SIZE 256
45
d4e24275 46typedef int (*SwsFunc)(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
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47 int srcSliceH, uint8_t* dst[], int dstStride[]);
48
49/* this struct should be aligned on at least 32-byte boundary */
50typedef struct SwsContext{
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51 /**
52 *
53 * Note the src,dst,srcStride,dstStride will be copied, in the sws_scale() warper so they can freely be modified here
54 */
d4e24275 55 SwsFunc swScale;
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56 int srcW, srcH, dstH;
57 int chrSrcW, chrSrcH, chrDstW, chrDstH;
58 int lumXInc, chrXInc;
59 int lumYInc, chrYInc;
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60 int dstFormat, srcFormat; ///< format 4:2:0 type is allways YV12
61 int origDstFormat, origSrcFormat; ///< format
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62 int chrSrcHSubSample, chrSrcVSubSample;
63 int chrIntHSubSample, chrIntVSubSample;
64 int chrDstHSubSample, chrDstVSubSample;
65 int vChrDrop;
e63ac25d 66 int sliceDir;
66d1cdb6 67 double param[2];
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68
69 int16_t **lumPixBuf;
70 int16_t **chrPixBuf;
71 int16_t *hLumFilter;
72 int16_t *hLumFilterPos;
73 int16_t *hChrFilter;
74 int16_t *hChrFilterPos;
75 int16_t *vLumFilter;
76 int16_t *vLumFilterPos;
77 int16_t *vChrFilter;
78 int16_t *vChrFilterPos;
79
80 uint8_t formatConvBuffer[4000]; //FIXME dynamic alloc, but we have to change alot of code for this to be usefull
81
82 int hLumFilterSize;
83 int hChrFilterSize;
84 int vLumFilterSize;
85 int vChrFilterSize;
86 int vLumBufSize;
87 int vChrBufSize;
88
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89 uint8_t *funnyYCode;
90 uint8_t *funnyUVCode;
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91 int32_t *lumMmx2FilterPos;
92 int32_t *chrMmx2FilterPos;
93 int16_t *lumMmx2Filter;
94 int16_t *chrMmx2Filter;
95
96 int canMMX2BeUsed;
97
98 int lastInLumBuf;
99 int lastInChrBuf;
100 int lumBufIndex;
101 int chrBufIndex;
102 int dstY;
103 int flags;
104 void * yuvTable; // pointer to the yuv->rgb table start so it can be freed()
105 void * table_rV[256];
106 void * table_gU[256];
107 int table_gV[256];
108 void * table_bU[256];
109
110 //Colorspace stuff
111 int contrast, brightness, saturation; // for sws_getColorspaceDetails
112 int srcColorspaceTable[4];
113 int dstColorspaceTable[4];
114 int srcRange, dstRange;
115
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116#define RED_DITHER "0*8"
117#define GREEN_DITHER "1*8"
118#define BLUE_DITHER "2*8"
119#define Y_COEFF "3*8"
120#define VR_COEFF "4*8"
121#define UB_COEFF "5*8"
122#define VG_COEFF "6*8"
123#define UG_COEFF "7*8"
124#define Y_OFFSET "8*8"
125#define U_OFFSET "9*8"
126#define V_OFFSET "10*8"
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127#define LUM_MMX_FILTER_OFFSET "11*8"
128#define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
129#define DSTW_OFFSET "11*8+4*4*256*2" //do not change, its hardcoded in the asm
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130#define ESP_OFFSET "11*8+4*4*256*2+8"
131#define VROUNDER_OFFSET "11*8+4*4*256*2+16"
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132#define U_TEMP "11*8+4*4*256*2+24"
133#define V_TEMP "11*8+4*4*256*2+32"
134
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135 uint64_t redDither __attribute__((aligned(8)));
136 uint64_t greenDither __attribute__((aligned(8)));
137 uint64_t blueDither __attribute__((aligned(8)));
138
139 uint64_t yCoeff __attribute__((aligned(8)));
140 uint64_t vrCoeff __attribute__((aligned(8)));
141 uint64_t ubCoeff __attribute__((aligned(8)));
142 uint64_t vgCoeff __attribute__((aligned(8)));
143 uint64_t ugCoeff __attribute__((aligned(8)));
144 uint64_t yOffset __attribute__((aligned(8)));
145 uint64_t uOffset __attribute__((aligned(8)));
146 uint64_t vOffset __attribute__((aligned(8)));
147 int32_t lumMmxFilter[4*MAX_FILTER_SIZE];
148 int32_t chrMmxFilter[4*MAX_FILTER_SIZE];
149 int dstW;
902c748c 150 uint64_t esp __attribute__((aligned(8)));
8bae9ddc 151 uint64_t vRounder __attribute__((aligned(8)));
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152 uint64_t u_temp __attribute__((aligned(8)));
153 uint64_t v_temp __attribute__((aligned(8)));
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154
155#ifdef HAVE_ALTIVEC
156
157 vector signed short CY;
158 vector signed short CRV;
159 vector signed short CBU;
160 vector signed short CGU;
161 vector signed short CGV;
162 vector signed short OY;
163 vector unsigned short CSHIFT;
d33d485e 164 vector signed short *vYCoeffsBank, *vCCoeffsBank;
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165
166#endif
167
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168} SwsContext;
169//FIXME check init (where 0)
5427e242 170
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171SwsFunc yuv2rgb_get_func_ptr (SwsContext *c);
172int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation);
173
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174char *sws_format_name(int format);
175
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176//FIXME replace this with something faster
177#define isPlanarYUV(x) ((x)==PIX_FMT_YUV410P || (x)==PIX_FMT_YUV420P \
178 || (x)==PIX_FMT_YUV411P || (x)==PIX_FMT_YUV422P \
179 || (x)==PIX_FMT_YUV444P || (x)==PIX_FMT_NV12 \
180 || (x)==PIX_FMT_NV21)
181#define isYUV(x) ((x)==PIX_FMT_UYVY422 || (x)==PIX_FMT_YUYV422 || isPlanarYUV(x))
182#define isGray(x) ((x)==PIX_FMT_GRAY8)
183#define isRGB(x) ((x)==PIX_FMT_BGR32 || (x)==PIX_FMT_RGB24 \
184 || (x)==PIX_FMT_RGB565 || (x)==PIX_FMT_RGB555 \
185 || (x)==PIX_FMT_RGB8 || (x)==PIX_FMT_RGB4 \
186 || (x)==PIX_FMT_MONOBLACK)
187#define isBGR(x) ((x)==PIX_FMT_RGB32 || (x)==PIX_FMT_BGR24 \
188 || (x)==PIX_FMT_BGR565 || (x)==PIX_FMT_BGR555 \
189 || (x)==PIX_FMT_BGR8 || (x)==PIX_FMT_BGR4 \
190 || (x)==PIX_FMT_MONOBLACK)
191
192static inline int fmt_depth(int fmt)
193{
194 switch(fmt) {
195 case PIX_FMT_BGRA:
196 case PIX_FMT_ABGR:
197 case PIX_FMT_RGBA:
198 case PIX_FMT_ARGB:
199 return 32;
200 case PIX_FMT_BGR24:
201 case PIX_FMT_RGB24:
202 return 24;
203 case PIX_FMT_BGR565:
204 case PIX_FMT_RGB565:
205 return 16;
206 case PIX_FMT_BGR555:
207 case PIX_FMT_RGB555:
208 return 15;
209 case PIX_FMT_BGR8:
210 case PIX_FMT_RGB8:
211 return 8;
212 case PIX_FMT_BGR4:
213 case PIX_FMT_RGB4:
214 case PIX_FMT_BGR4_BYTE:
215 case PIX_FMT_RGB4_BYTE:
216 return 4;
217 case PIX_FMT_MONOBLACK:
218 return 1;
219 default:
220 return 0;
221 }
222}
223
5427e242 224#endif