* BeOS patch by Fran├žois Revol <revol@free.fr>
[libav.git] / libavcodec / dsputil.h
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1#ifndef DSPUTIL_H
2#define DSPUTIL_H
3
4#include "common.h"
43f1708f 5#include "avcodec.h"
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6
7/* dct code */
8typedef short DCTELEM;
9
10void jpeg_fdct_ifast (DCTELEM *data);
11
12void j_rev_dct (DCTELEM *data);
13
14void fdct_mmx(DCTELEM *block);
15
16void (*av_fdct)(DCTELEM *block);
17
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18/* encoding scans */
19extern UINT8 ff_alternate_horizontal_scan[64];
20extern UINT8 ff_alternate_vertical_scan[64];
21extern UINT8 zigzag_direct[64];
22
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23/* permutation table */
24extern UINT8 permutation[64];
25
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26/* pixel operations */
27#define MAX_NEG_CROP 384
28
29/* temporary */
30extern UINT32 squareTbl[512];
0cfa9713 31extern UINT8 cropTbl[256 + 2 * MAX_NEG_CROP];
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32
33void dsputil_init(void);
34
35/* pixel ops : interface with DCT */
36
4af7bcc1 37extern void (*ff_idct)(DCTELEM *block);
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38extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
39extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
40extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
41
42void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
43void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
44void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
45
46/* add and put pixel (decoding) */
47typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
48
49extern op_pixels_func put_pixels_tab[4];
50extern op_pixels_func avg_pixels_tab[4];
51extern op_pixels_func put_no_rnd_pixels_tab[4];
52extern op_pixels_func avg_no_rnd_pixels_tab[4];
53
54/* sub pixel (encoding) */
55extern void (*sub_pixels_tab[4])(DCTELEM *block, const UINT8 *pixels, int line_size, int h);
56
57#define sub_pixels_2(block, pixels, line_size, dxy) \
58 sub_pixels_tab[dxy](block, pixels, line_size, 8)
59
60/* motion estimation */
61
62typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size, int h);
63
64extern op_pixels_abs_func pix_abs16x16;
65extern op_pixels_abs_func pix_abs16x16_x2;
66extern op_pixels_abs_func pix_abs16x16_y2;
67extern op_pixels_abs_func pix_abs16x16_xy2;
68
69int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
70int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
71int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
72int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
73
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74static inline int block_permute_op(int j)
75{
5a240838 76 return permutation[j];
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77}
78
79void block_permute(INT16 *block);
80
3d03c0a2 81#if defined(HAVE_MMX)
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82
83#define MM_MMX 0x0001 /* standard MMX */
84#define MM_3DNOW 0x0004 /* AMD 3DNOW */
85#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
86#define MM_SSE 0x0008 /* SSE functions */
87#define MM_SSE2 0x0010 /* PIV SSE2 functions */
88
89extern int mm_flags;
90
91int mm_support(void);
92
93static inline void emms(void)
94{
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95 __asm __volatile ("emms;":::"memory");
96}
97
98#define emms_c() \
99{\
100 if (mm_flags & MM_MMX)\
101 emms();\
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102}
103
104#define __align8 __attribute__ ((aligned (8)))
105
106void dsputil_init_mmx(void);
107
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108#elif defined(ARCH_ARMV4L)
109
110#define emms_c()
111
112/* This is to use 4 bytes read to the IDCT pointers for some 'zero'
113 line ptimizations */
114#define __align8 __attribute__ ((aligned (4)))
115
116void dsputil_init_armv4l(void);
117
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118#elif defined(HAVE_MLIB)
119
120#define emms_c()
121
122/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
123#define __align8 __attribute__ ((aligned (8)))
124
125void dsputil_init_mlib(void);
126
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127#elif defined(ARCH_ALPHA)
128
129#define emms_c()
130#define __align8 __attribute__ ((aligned (8)))
131
132void dsputil_init_alpha(void);
133
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134#else
135
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136#define emms_c()
137
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138#define __align8
139
140#endif
141
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142/* PSNR */
143void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3],
144 int orig_linesize[3], int coded_linesize,
145 AVCodecContext *avctx);
146
de6d9b64 147#endif