c7761ee1a4553bca47ab06e8537fab891ab8b1e6
[libav.git] / postproc / swscale_internal.h
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
16 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 */
18
19 #ifndef SWSCALE_INTERNAL_H
20 #define SWSCALE_INTERNAL_H
21
22 #ifdef HAVE_ALTIVEC_H
23 #include <altivec.h>
24 #endif
25
26 #include "../mp_msg.h"
27
28 #define MSG_WARN(args...) mp_msg(MSGT_SWS,MSGL_WARN, ##args )
29 #define MSG_FATAL(args...) mp_msg(MSGT_SWS,MSGL_FATAL, ##args )
30 #define MSG_ERR(args...) mp_msg(MSGT_SWS,MSGL_ERR, ##args )
31 #define MSG_V(args...) mp_msg(MSGT_SWS,MSGL_V, ##args )
32 #define MSG_DBG2(args...) mp_msg(MSGT_SWS,MSGL_DBG2, ##args )
33 #define MSG_INFO(args...) mp_msg(MSGT_SWS,MSGL_INFO, ##args )
34
35 #define MAX_FILTER_SIZE 256
36
37 typedef int (*SwsFunc)(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
38 int srcSliceH, uint8_t* dst[], int dstStride[]);
39
40 /* this struct should be aligned on at least 32-byte boundary */
41 typedef struct SwsContext{
42 /**
43 *
44 * Note the src,dst,srcStride,dstStride will be copied, in the sws_scale() warper so they can freely be modified here
45 */
46 SwsFunc swScale;
47 int srcW, srcH, dstH;
48 int chrSrcW, chrSrcH, chrDstW, chrDstH;
49 int lumXInc, chrXInc;
50 int lumYInc, chrYInc;
51 int dstFormat, srcFormat; ///< format 4:2:0 type is allways YV12
52 int origDstFormat, origSrcFormat; ///< format
53 int chrSrcHSubSample, chrSrcVSubSample;
54 int chrIntHSubSample, chrIntVSubSample;
55 int chrDstHSubSample, chrDstVSubSample;
56 int vChrDrop;
57
58 int16_t **lumPixBuf;
59 int16_t **chrPixBuf;
60 int16_t *hLumFilter;
61 int16_t *hLumFilterPos;
62 int16_t *hChrFilter;
63 int16_t *hChrFilterPos;
64 int16_t *vLumFilter;
65 int16_t *vLumFilterPos;
66 int16_t *vChrFilter;
67 int16_t *vChrFilterPos;
68
69 uint8_t formatConvBuffer[4000]; //FIXME dynamic alloc, but we have to change alot of code for this to be usefull
70
71 int hLumFilterSize;
72 int hChrFilterSize;
73 int vLumFilterSize;
74 int vChrFilterSize;
75 int vLumBufSize;
76 int vChrBufSize;
77
78 uint8_t __attribute__((aligned(32))) funnyYCode[10000];
79 uint8_t __attribute__((aligned(32))) funnyUVCode[10000];
80 int32_t *lumMmx2FilterPos;
81 int32_t *chrMmx2FilterPos;
82 int16_t *lumMmx2Filter;
83 int16_t *chrMmx2Filter;
84
85 int canMMX2BeUsed;
86
87 int lastInLumBuf;
88 int lastInChrBuf;
89 int lumBufIndex;
90 int chrBufIndex;
91 int dstY;
92 int flags;
93 void * yuvTable; // pointer to the yuv->rgb table start so it can be freed()
94 void * table_rV[256];
95 void * table_gU[256];
96 int table_gV[256];
97 void * table_bU[256];
98
99 //Colorspace stuff
100 int contrast, brightness, saturation; // for sws_getColorspaceDetails
101 int srcColorspaceTable[4];
102 int dstColorspaceTable[4];
103 int srcRange, dstRange;
104
105 #define RED_DITHER "0*8"
106 #define GREEN_DITHER "1*8"
107 #define BLUE_DITHER "2*8"
108 #define Y_COEFF "3*8"
109 #define VR_COEFF "4*8"
110 #define UB_COEFF "5*8"
111 #define VG_COEFF "6*8"
112 #define UG_COEFF "7*8"
113 #define Y_OFFSET "8*8"
114 #define U_OFFSET "9*8"
115 #define V_OFFSET "10*8"
116 #define LUM_MMX_FILTER_OFFSET "11*8"
117 #define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
118 #define DSTW_OFFSET "11*8+4*4*256*2" //do not change, its hardcoded in the asm
119 #define ESP_OFFSET "11*8+4*4*256*2+4"
120 #define VROUNDER_OFFSET "11*8+4*4*256*2+8"
121
122 uint64_t redDither __attribute__((aligned(8)));
123 uint64_t greenDither __attribute__((aligned(8)));
124 uint64_t blueDither __attribute__((aligned(8)));
125
126 uint64_t yCoeff __attribute__((aligned(8)));
127 uint64_t vrCoeff __attribute__((aligned(8)));
128 uint64_t ubCoeff __attribute__((aligned(8)));
129 uint64_t vgCoeff __attribute__((aligned(8)));
130 uint64_t ugCoeff __attribute__((aligned(8)));
131 uint64_t yOffset __attribute__((aligned(8)));
132 uint64_t uOffset __attribute__((aligned(8)));
133 uint64_t vOffset __attribute__((aligned(8)));
134 int32_t lumMmxFilter[4*MAX_FILTER_SIZE];
135 int32_t chrMmxFilter[4*MAX_FILTER_SIZE];
136 int dstW;
137 int esp;
138 uint64_t vRounder __attribute__((aligned(8)));
139
140 #ifdef HAVE_ALTIVEC
141
142 vector signed short CY;
143 vector signed short CRV;
144 vector signed short CBU;
145 vector signed short CGU;
146 vector signed short CGV;
147 vector signed short OY;
148 vector unsigned short CSHIFT;
149
150 #endif
151
152 } SwsContext;
153 //FIXME check init (where 0)
154
155 SwsFunc yuv2rgb_get_func_ptr (SwsContext *c);
156 int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation);
157
158 #endif