Merge RoQ entries
[libav.git] / libswscale / swscale_internal.h
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5427e242 1/*
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2 * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
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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.
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10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
d026b45e 15 *
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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
d026b45e 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
d026b45e 19 */
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20
21#ifndef SWSCALE_INTERNAL_H
22#define SWSCALE_INTERNAL_H
23
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24#ifdef HAVE_ALTIVEC_H
25#include <altivec.h>
26#endif
27
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28#include "avutil.h"
29
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30#ifdef CONFIG_DARWIN
31#define AVV(x...) (x)
32#else
33#define AVV(x...) {x}
34#endif
35
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36#define MAX_FILTER_SIZE 256
37
d4e24275 38typedef int (*SwsFunc)(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
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39 int srcSliceH, uint8_t* dst[], int dstStride[]);
40
41/* this struct should be aligned on at least 32-byte boundary */
42typedef struct SwsContext{
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43 /**
44 * info on struct for av_log
45 */
46 AVClass *av_class;
47
48 /**
49 *
50 * Note the src,dst,srcStride,dstStride will be copied, in the sws_scale() warper so they can freely be modified here
51 */
52 SwsFunc swScale;
53 int srcW, srcH, dstH;
54 int chrSrcW, chrSrcH, chrDstW, chrDstH;
55 int lumXInc, chrXInc;
56 int lumYInc, chrYInc;
57 int dstFormat, srcFormat; ///< format 4:2:0 type is always YV12
58 int origDstFormat, origSrcFormat; ///< format
59 int chrSrcHSubSample, chrSrcVSubSample;
60 int chrIntHSubSample, chrIntVSubSample;
61 int chrDstHSubSample, chrDstVSubSample;
62 int vChrDrop;
63 int sliceDir;
64 double param[2];
65
66 int16_t **lumPixBuf;
67 int16_t **chrPixBuf;
68 int16_t *hLumFilter;
69 int16_t *hLumFilterPos;
70 int16_t *hChrFilter;
71 int16_t *hChrFilterPos;
72 int16_t *vLumFilter;
73 int16_t *vLumFilterPos;
74 int16_t *vChrFilter;
75 int16_t *vChrFilterPos;
76
77 uint8_t formatConvBuffer[4000]; //FIXME dynamic alloc, but we have to change a lot of code for this to be useful
78
79 int hLumFilterSize;
80 int hChrFilterSize;
81 int vLumFilterSize;
82 int vChrFilterSize;
83 int vLumBufSize;
84 int vChrBufSize;
85
86 uint8_t *funnyYCode;
87 uint8_t *funnyUVCode;
88 int32_t *lumMmx2FilterPos;
89 int32_t *chrMmx2FilterPos;
90 int16_t *lumMmx2Filter;
91 int16_t *chrMmx2Filter;
92
93 int canMMX2BeUsed;
94
95 int lastInLumBuf;
96 int lastInChrBuf;
97 int lumBufIndex;
98 int chrBufIndex;
99 int dstY;
100 int flags;
101 void * yuvTable; // pointer to the yuv->rgb table start so it can be freed()
102 uint8_t * table_rV[256];
103 uint8_t * table_gU[256];
104 int table_gV[256];
105 uint8_t * table_bU[256];
106
107 //Colorspace stuff
108 int contrast, brightness, saturation; // for sws_getColorspaceDetails
109 int srcColorspaceTable[4];
110 int dstColorspaceTable[4];
111 int srcRange, dstRange;
112
113#define RED_DITHER "0*8"
114#define GREEN_DITHER "1*8"
115#define BLUE_DITHER "2*8"
116#define Y_COEFF "3*8"
117#define VR_COEFF "4*8"
118#define UB_COEFF "5*8"
119#define VG_COEFF "6*8"
120#define UG_COEFF "7*8"
121#define Y_OFFSET "8*8"
122#define U_OFFSET "9*8"
123#define V_OFFSET "10*8"
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124#define LUM_MMX_FILTER_OFFSET "11*8"
125#define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
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126#define DSTW_OFFSET "11*8+4*4*256*2" //do not change, its hardcoded in the asm
127#define ESP_OFFSET "11*8+4*4*256*2+8"
128#define VROUNDER_OFFSET "11*8+4*4*256*2+16"
129#define U_TEMP "11*8+4*4*256*2+24"
130#define V_TEMP "11*8+4*4*256*2+32"
131
132 uint64_t redDither __attribute__((aligned(8)));
133 uint64_t greenDither __attribute__((aligned(8)));
134 uint64_t blueDither __attribute__((aligned(8)));
135
136 uint64_t yCoeff __attribute__((aligned(8)));
137 uint64_t vrCoeff __attribute__((aligned(8)));
138 uint64_t ubCoeff __attribute__((aligned(8)));
139 uint64_t vgCoeff __attribute__((aligned(8)));
140 uint64_t ugCoeff __attribute__((aligned(8)));
141 uint64_t yOffset __attribute__((aligned(8)));
142 uint64_t uOffset __attribute__((aligned(8)));
143 uint64_t vOffset __attribute__((aligned(8)));
144 int32_t lumMmxFilter[4*MAX_FILTER_SIZE];
145 int32_t chrMmxFilter[4*MAX_FILTER_SIZE];
146 int dstW;
147 uint64_t esp __attribute__((aligned(8)));
148 uint64_t vRounder __attribute__((aligned(8)));
149 uint64_t u_temp __attribute__((aligned(8)));
150 uint64_t v_temp __attribute__((aligned(8)));
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151
152#ifdef HAVE_ALTIVEC
153
154 vector signed short CY;
155 vector signed short CRV;
156 vector signed short CBU;
157 vector signed short CGU;
158 vector signed short CGV;
159 vector signed short OY;
160 vector unsigned short CSHIFT;
221b804f 161 vector signed short *vYCoeffsBank, *vCCoeffsBank;
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162
163#endif
164
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165} SwsContext;
166//FIXME check init (where 0)
5427e242 167
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168SwsFunc yuv2rgb_get_func_ptr (SwsContext *c);
169int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation);
170
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171char *sws_format_name(int format);
172
e9e12f0e 173//FIXME replace this with something faster
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174#define isPlanarYUV(x) ((x)==PIX_FMT_YUV410P || (x)==PIX_FMT_YUV420P \
175 || (x)==PIX_FMT_YUV411P || (x)==PIX_FMT_YUV422P \
176 || (x)==PIX_FMT_YUV444P || (x)==PIX_FMT_NV12 \
177 || (x)==PIX_FMT_NV21)
178#define isYUV(x) ((x)==PIX_FMT_UYVY422 || (x)==PIX_FMT_YUYV422 || isPlanarYUV(x))
179#define isGray(x) ((x)==PIX_FMT_GRAY8 || (x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE)
4884b9e5 180#define isGray16(x) ((x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE)
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181#define isRGB(x) ((x)==PIX_FMT_BGR32 || (x)==PIX_FMT_RGB24 \
182 || (x)==PIX_FMT_RGB565 || (x)==PIX_FMT_RGB555 \
183 || (x)==PIX_FMT_RGB8 || (x)==PIX_FMT_RGB4 || (x)==PIX_FMT_RGB4_BYTE \
184 || (x)==PIX_FMT_MONOBLACK)
185#define isBGR(x) ((x)==PIX_FMT_RGB32 || (x)==PIX_FMT_BGR24 \
186 || (x)==PIX_FMT_BGR565 || (x)==PIX_FMT_BGR555 \
187 || (x)==PIX_FMT_BGR8 || (x)==PIX_FMT_BGR4 || (x)==PIX_FMT_BGR4_BYTE \
188 || (x)==PIX_FMT_MONOBLACK)
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189
190static inline int fmt_depth(int fmt)
191{
192 switch(fmt) {
193 case PIX_FMT_BGRA:
194 case PIX_FMT_ABGR:
195 case PIX_FMT_RGBA:
196 case PIX_FMT_ARGB:
197 return 32;
198 case PIX_FMT_BGR24:
199 case PIX_FMT_RGB24:
200 return 24;
201 case PIX_FMT_BGR565:
202 case PIX_FMT_RGB565:
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203 case PIX_FMT_GRAY16BE:
204 case PIX_FMT_GRAY16LE:
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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