added missing externs (we were lucky that commons are used)
[libav.git] / libavcodec / dsputil.h
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1/*
2 * DSP utils
3 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
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19#ifndef DSPUTIL_H
20#define DSPUTIL_H
21
22#include "common.h"
43f1708f 23#include "avcodec.h"
de6d9b64 24
44eb4951 25//#define DEBUG
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26/* dct code */
27typedef short DCTELEM;
28
29void jpeg_fdct_ifast (DCTELEM *data);
30
31void j_rev_dct (DCTELEM *data);
32
33void fdct_mmx(DCTELEM *block);
34
35void (*av_fdct)(DCTELEM *block);
36
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37/* encoding scans */
38extern UINT8 ff_alternate_horizontal_scan[64];
39extern UINT8 ff_alternate_vertical_scan[64];
40extern UINT8 zigzag_direct[64];
41
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42/* permutation table */
43extern UINT8 permutation[64];
44
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45/* pixel operations */
46#define MAX_NEG_CROP 384
47
48/* temporary */
49extern UINT32 squareTbl[512];
0cfa9713 50extern UINT8 cropTbl[256 + 2 * MAX_NEG_CROP];
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51
52void dsputil_init(void);
53
54/* pixel ops : interface with DCT */
55
4af7bcc1 56extern void (*ff_idct)(DCTELEM *block);
de6d9b64 57extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
9dbcbd92 58extern void (*diff_pixels)(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride);
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59extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
60extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
44eb4951 61extern void (*gmc1)(UINT8 *dst, UINT8 *src, int srcStride, int h, int x16, int y16, int rounder);
649c00c9 62extern void (*clear_blocks)(DCTELEM *blocks);
44eb4951 63
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64
65void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
9dbcbd92 66void diff_pixels_c(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride);
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67void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
68void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
649c00c9 69void clear_blocks_c(DCTELEM *blocks);
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70
71/* add and put pixel (decoding) */
72typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
44eb4951 73typedef void (*qpel_mc_func)(UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my);
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74
75extern op_pixels_func put_pixels_tab[4];
76extern op_pixels_func avg_pixels_tab[4];
77extern op_pixels_func put_no_rnd_pixels_tab[4];
78extern op_pixels_func avg_no_rnd_pixels_tab[4];
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79extern qpel_mc_func qpel_mc_rnd_tab[16];
80extern qpel_mc_func qpel_mc_no_rnd_tab[16];
81
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82/* motion estimation */
83
ba6802de 84typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size);
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85
86extern op_pixels_abs_func pix_abs16x16;
87extern op_pixels_abs_func pix_abs16x16_x2;
88extern op_pixels_abs_func pix_abs16x16_y2;
89extern op_pixels_abs_func pix_abs16x16_xy2;
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90extern op_pixels_abs_func pix_abs8x8;
91extern op_pixels_abs_func pix_abs8x8_x2;
92extern op_pixels_abs_func pix_abs8x8_y2;
93extern op_pixels_abs_func pix_abs8x8_xy2;
94
95int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx);
96int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx);
97int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx);
98int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx);
de6d9b64 99
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100static inline int block_permute_op(int j)
101{
5a240838 102 return permutation[j];
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103}
104
105void block_permute(INT16 *block);
106
3d03c0a2 107#if defined(HAVE_MMX)
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108
109#define MM_MMX 0x0001 /* standard MMX */
110#define MM_3DNOW 0x0004 /* AMD 3DNOW */
111#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
112#define MM_SSE 0x0008 /* SSE functions */
113#define MM_SSE2 0x0010 /* PIV SSE2 functions */
114
115extern int mm_flags;
116
117int mm_support(void);
118
119static inline void emms(void)
120{
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121 __asm __volatile ("emms;":::"memory");
122}
123
124#define emms_c() \
125{\
126 if (mm_flags & MM_MMX)\
127 emms();\
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128}
129
130#define __align8 __attribute__ ((aligned (8)))
131
132void dsputil_init_mmx(void);
57060b1e 133void dsputil_set_bit_exact_mmx(void);
de6d9b64 134
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135#elif defined(ARCH_ARMV4L)
136
137#define emms_c()
138
139/* This is to use 4 bytes read to the IDCT pointers for some 'zero'
140 line ptimizations */
141#define __align8 __attribute__ ((aligned (4)))
142
143void dsputil_init_armv4l(void);
144
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145#elif defined(HAVE_MLIB)
146
147#define emms_c()
148
149/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
150#define __align8 __attribute__ ((aligned (8)))
151
152void dsputil_init_mlib(void);
153
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154#elif defined(ARCH_ALPHA)
155
156#define emms_c()
157#define __align8 __attribute__ ((aligned (8)))
158
159void dsputil_init_alpha(void);
160
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161#else
162
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163#define emms_c()
164
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165#define __align8
166
167#endif
168
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169/* PSNR */
170void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3],
171 int orig_linesize[3], int coded_linesize,
172 AVCodecContext *avctx);
173
de6d9b64 174#endif