export for imgconvert usage
[libav.git] / libavcodec / dsputil.h
1 #ifndef DSPUTIL_H
2 #define DSPUTIL_H
3
4 #include "common.h"
5 #include <inttypes.h>
6
7 /* dct code */
8 typedef short DCTELEM;
9
10 void jpeg_fdct_ifast (DCTELEM *data);
11
12 void j_rev_dct (DCTELEM *data);
13
14 void fdct_mmx(DCTELEM *block);
15
16 void (*av_fdct)(DCTELEM *block);
17
18 /* encoding scans */
19 extern UINT8 ff_alternate_horizontal_scan[64];
20 extern UINT8 ff_alternate_vertical_scan[64];
21 extern UINT8 zigzag_direct[64];
22
23 /* pixel operations */
24 #define MAX_NEG_CROP 384
25
26 /* temporary */
27 extern UINT32 squareTbl[512];
28 extern UINT8 cropTbl[256 + 2 * MAX_NEG_CROP];
29
30 void dsputil_init(void);
31
32 /* pixel ops : interface with DCT */
33
34 extern void (*ff_idct)(DCTELEM *block);
35 extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
36 extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
37 extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
38
39 void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
40 void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
41 void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
42
43 /* add and put pixel (decoding) */
44 typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
45
46 extern op_pixels_func put_pixels_tab[4];
47 extern op_pixels_func avg_pixels_tab[4];
48 extern op_pixels_func put_no_rnd_pixels_tab[4];
49 extern op_pixels_func avg_no_rnd_pixels_tab[4];
50
51 /* sub pixel (encoding) */
52 extern void (*sub_pixels_tab[4])(DCTELEM *block, const UINT8 *pixels, int line_size, int h);
53
54 #define sub_pixels_2(block, pixels, line_size, dxy) \
55 sub_pixels_tab[dxy](block, pixels, line_size, 8)
56
57 /* motion estimation */
58
59 typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size, int h);
60
61 extern op_pixels_abs_func pix_abs16x16;
62 extern op_pixels_abs_func pix_abs16x16_x2;
63 extern op_pixels_abs_func pix_abs16x16_y2;
64 extern op_pixels_abs_func pix_abs16x16_xy2;
65
66 int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
67 int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
68 int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
69 int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx, int h);
70
71 static inline int block_permute_op(int j)
72 {
73 return (j & 0x38) | ((j & 6) >> 1) | ((j & 1) << 2);
74 }
75
76 void block_permute(INT16 *block);
77
78 #ifdef HAVE_MMX
79
80 #define MM_MMX 0x0001 /* standard MMX */
81 #define MM_3DNOW 0x0004 /* AMD 3DNOW */
82 #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
83 #define MM_SSE 0x0008 /* SSE functions */
84 #define MM_SSE2 0x0010 /* PIV SSE2 functions */
85
86 extern int mm_flags;
87
88 int mm_support(void);
89
90 static inline void emms(void)
91 {
92 __asm __volatile ("emms;":::"memory");
93 }
94
95 #define emms_c() \
96 {\
97 if (mm_flags & MM_MMX)\
98 emms();\
99 }
100
101 #define __align8 __attribute__ ((aligned (8)))
102
103 void dsputil_init_mmx(void);
104
105 #else
106
107 #define emms_c()
108
109 #define __align8
110
111 #endif
112
113 #endif