982fab5f5493571a0be6604dfd5517db5e2cea57
[libav.git] / libavcodec / dsputil.h
1 #ifndef DSPUTIL_H
2 #define DSPUTIL_H
3
4 #include "common.h"
5 #include "avcodec.h"
6
7 //#define DEBUG
8 /* dct code */
9 typedef short DCTELEM;
10
11 void jpeg_fdct_ifast (DCTELEM *data);
12
13 void j_rev_dct (DCTELEM *data);
14
15 void fdct_mmx(DCTELEM *block);
16
17 void (*av_fdct)(DCTELEM *block);
18
19 /* encoding scans */
20 extern UINT8 ff_alternate_horizontal_scan[64];
21 extern UINT8 ff_alternate_vertical_scan[64];
22 extern UINT8 zigzag_direct[64];
23
24 /* permutation table */
25 extern UINT8 permutation[64];
26
27 /* pixel operations */
28 #define MAX_NEG_CROP 384
29
30 /* temporary */
31 extern UINT32 squareTbl[512];
32 extern UINT8 cropTbl[256 + 2 * MAX_NEG_CROP];
33
34 void dsputil_init(void);
35
36 /* pixel ops : interface with DCT */
37
38 extern void (*ff_idct)(DCTELEM *block);
39 extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
40 extern void (*diff_pixels)(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride);
41 extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
42 extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
43 extern void (*gmc1)(UINT8 *dst, UINT8 *src, int srcStride, int h, int x16, int y16, int rounder);
44 extern void (*clear_blocks)(DCTELEM *blocks);
45
46
47 void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
48 void diff_pixels_c(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride);
49 void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
50 void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
51 void clear_blocks_c(DCTELEM *blocks);
52
53 /* add and put pixel (decoding) */
54 typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
55 typedef void (*qpel_mc_func)(UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my);
56
57 extern op_pixels_func put_pixels_tab[4];
58 extern op_pixels_func avg_pixels_tab[4];
59 extern op_pixels_func put_no_rnd_pixels_tab[4];
60 extern op_pixels_func avg_no_rnd_pixels_tab[4];
61 extern qpel_mc_func qpel_mc_rnd_tab[16];
62 extern qpel_mc_func qpel_mc_no_rnd_tab[16];
63
64
65 /* sub pixel (encoding) */
66 extern void (*sub_pixels_tab[4])(DCTELEM *block, const UINT8 *pixels, int line_size, int h);
67
68 #define sub_pixels_2(block, pixels, line_size, dxy) \
69 sub_pixels_tab[dxy](block, pixels, line_size, 8)
70
71 /* motion estimation */
72
73 typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size);
74
75 extern op_pixels_abs_func pix_abs16x16;
76 extern op_pixels_abs_func pix_abs16x16_x2;
77 extern op_pixels_abs_func pix_abs16x16_y2;
78 extern op_pixels_abs_func pix_abs16x16_xy2;
79 extern op_pixels_abs_func pix_abs8x8;
80 extern op_pixels_abs_func pix_abs8x8_x2;
81 extern op_pixels_abs_func pix_abs8x8_y2;
82 extern op_pixels_abs_func pix_abs8x8_xy2;
83
84 int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx);
85 int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx);
86 int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx);
87 int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx);
88
89 static inline int block_permute_op(int j)
90 {
91 return permutation[j];
92 }
93
94 void block_permute(INT16 *block);
95
96 #if defined(HAVE_MMX)
97
98 #define MM_MMX 0x0001 /* standard MMX */
99 #define MM_3DNOW 0x0004 /* AMD 3DNOW */
100 #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
101 #define MM_SSE 0x0008 /* SSE functions */
102 #define MM_SSE2 0x0010 /* PIV SSE2 functions */
103
104 extern int mm_flags;
105
106 int mm_support(void);
107
108 static inline void emms(void)
109 {
110 __asm __volatile ("emms;":::"memory");
111 }
112
113 #define emms_c() \
114 {\
115 if (mm_flags & MM_MMX)\
116 emms();\
117 }
118
119 #define __align8 __attribute__ ((aligned (8)))
120
121 void dsputil_init_mmx(void);
122
123 #elif defined(ARCH_ARMV4L)
124
125 #define emms_c()
126
127 /* This is to use 4 bytes read to the IDCT pointers for some 'zero'
128 line ptimizations */
129 #define __align8 __attribute__ ((aligned (4)))
130
131 void dsputil_init_armv4l(void);
132
133 #elif defined(HAVE_MLIB)
134
135 #define emms_c()
136
137 /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
138 #define __align8 __attribute__ ((aligned (8)))
139
140 void dsputil_init_mlib(void);
141
142 #elif defined(ARCH_ALPHA)
143
144 #define emms_c()
145 #define __align8 __attribute__ ((aligned (8)))
146
147 void dsputil_init_alpha(void);
148
149 #else
150
151 #define emms_c()
152
153 #define __align8
154
155 #endif
156
157 /* PSNR */
158 void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3],
159 int orig_linesize[3], int coded_linesize,
160 AVCodecContext *avctx);
161
162 #endif