10l
[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"
de6d9b64 6
44eb4951 7//#define DEBUG
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8/* dct code */
9typedef short DCTELEM;
10
11void jpeg_fdct_ifast (DCTELEM *data);
12
13void j_rev_dct (DCTELEM *data);
14
15void fdct_mmx(DCTELEM *block);
16
17void (*av_fdct)(DCTELEM *block);
18
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19/* encoding scans */
20extern UINT8 ff_alternate_horizontal_scan[64];
21extern UINT8 ff_alternate_vertical_scan[64];
22extern UINT8 zigzag_direct[64];
23
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24/* permutation table */
25extern UINT8 permutation[64];
26
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27/* pixel operations */
28#define MAX_NEG_CROP 384
29
30/* temporary */
31extern UINT32 squareTbl[512];
0cfa9713 32extern UINT8 cropTbl[256 + 2 * MAX_NEG_CROP];
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33
34void dsputil_init(void);
35
36/* pixel ops : interface with DCT */
37
4af7bcc1 38extern void (*ff_idct)(DCTELEM *block);
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39extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
40extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
41extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
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42extern void (*gmc1)(UINT8 *dst, UINT8 *src, int srcStride, int h, int x16, int y16, int rounder);
43
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44
45void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
46void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
47void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
48
49/* add and put pixel (decoding) */
50typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
44eb4951 51typedef void (*qpel_mc_func)(UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my);
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52
53extern op_pixels_func put_pixels_tab[4];
54extern op_pixels_func avg_pixels_tab[4];
55extern op_pixels_func put_no_rnd_pixels_tab[4];
56extern op_pixels_func avg_no_rnd_pixels_tab[4];
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57extern qpel_mc_func qpel_mc_rnd_tab[16];
58extern qpel_mc_func qpel_mc_no_rnd_tab[16];
59
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60
61/* sub pixel (encoding) */
62extern void (*sub_pixels_tab[4])(DCTELEM *block, const UINT8 *pixels, int line_size, int h);
63
64#define sub_pixels_2(block, pixels, line_size, dxy) \
65 sub_pixels_tab[dxy](block, pixels, line_size, 8)
66
67/* motion estimation */
68
69typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size, int h);
70
71extern op_pixels_abs_func pix_abs16x16;
72extern op_pixels_abs_func pix_abs16x16_x2;
73extern op_pixels_abs_func pix_abs16x16_y2;
74extern op_pixels_abs_func pix_abs16x16_xy2;
75
76int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
77int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
78int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
79int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
80
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81static inline int block_permute_op(int j)
82{
5a240838 83 return permutation[j];
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84}
85
86void block_permute(INT16 *block);
87
3d03c0a2 88#if defined(HAVE_MMX)
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89
90#define MM_MMX 0x0001 /* standard MMX */
91#define MM_3DNOW 0x0004 /* AMD 3DNOW */
92#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
93#define MM_SSE 0x0008 /* SSE functions */
94#define MM_SSE2 0x0010 /* PIV SSE2 functions */
95
96extern int mm_flags;
97
98int mm_support(void);
99
100static inline void emms(void)
101{
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102 __asm __volatile ("emms;":::"memory");
103}
104
105#define emms_c() \
106{\
107 if (mm_flags & MM_MMX)\
108 emms();\
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109}
110
111#define __align8 __attribute__ ((aligned (8)))
112
113void dsputil_init_mmx(void);
114
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115#elif defined(ARCH_ARMV4L)
116
117#define emms_c()
118
119/* This is to use 4 bytes read to the IDCT pointers for some 'zero'
120 line ptimizations */
121#define __align8 __attribute__ ((aligned (4)))
122
123void dsputil_init_armv4l(void);
124
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125#elif defined(HAVE_MLIB)
126
127#define emms_c()
128
129/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
130#define __align8 __attribute__ ((aligned (8)))
131
132void dsputil_init_mlib(void);
133
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134#elif defined(ARCH_ALPHA)
135
136#define emms_c()
137#define __align8 __attribute__ ((aligned (8)))
138
139void dsputil_init_alpha(void);
140
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141#else
142
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143#define emms_c()
144
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145#define __align8
146
147#endif
148
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149/* PSNR */
150void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3],
151 int orig_linesize[3], int coded_linesize,
152 AVCodecContext *avctx);
153
de6d9b64 154#endif