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[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
03c94ede 29void fdct_ifast (DCTELEM *data);
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30
31void j_rev_dct (DCTELEM *data);
32
33void fdct_mmx(DCTELEM *block);
34
03c94ede 35extern void (*av_fdct)(DCTELEM *block);
de6d9b64 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);
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57extern void (*ff_idct_put)(UINT8 *dest, int line_size, DCTELEM *block);
58extern void (*ff_idct_add)(UINT8 *dest, int line_size, DCTELEM *block);
de6d9b64 59extern void (*get_pixels)(DCTELEM *block, const UINT8 *pixels, int line_size);
9dbcbd92 60extern void (*diff_pixels)(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride);
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61extern void (*put_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
62extern void (*add_pixels_clamped)(const DCTELEM *block, UINT8 *pixels, int line_size);
44eb4951 63extern void (*gmc1)(UINT8 *dst, UINT8 *src, int srcStride, int h, int x16, int y16, int rounder);
649c00c9 64extern void (*clear_blocks)(DCTELEM *blocks);
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65extern int (*pix_sum)(UINT8 * pix, int line_size);
66extern int (*pix_norm1)(UINT8 * pix, int line_size);
67
44eb4951 68
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69
70void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
9dbcbd92 71void diff_pixels_c(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride);
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72void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
73void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
649c00c9 74void clear_blocks_c(DCTELEM *blocks);
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75
76/* add and put pixel (decoding) */
77typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
44eb4951 78typedef void (*qpel_mc_func)(UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my);
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79
80extern op_pixels_func put_pixels_tab[4];
81extern op_pixels_func avg_pixels_tab[4];
82extern op_pixels_func put_no_rnd_pixels_tab[4];
83extern op_pixels_func avg_no_rnd_pixels_tab[4];
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84extern qpel_mc_func qpel_mc_rnd_tab[16];
85extern qpel_mc_func qpel_mc_no_rnd_tab[16];
86
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87/* motion estimation */
88
ba6802de 89typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size);
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90
91extern op_pixels_abs_func pix_abs16x16;
92extern op_pixels_abs_func pix_abs16x16_x2;
93extern op_pixels_abs_func pix_abs16x16_y2;
94extern op_pixels_abs_func pix_abs16x16_xy2;
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95extern op_pixels_abs_func pix_abs8x8;
96extern op_pixels_abs_func pix_abs8x8_x2;
97extern op_pixels_abs_func pix_abs8x8_y2;
98extern op_pixels_abs_func pix_abs8x8_xy2;
99
100int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx);
101int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx);
102int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx);
103int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx);
de6d9b64 104
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105static inline int block_permute_op(int j)
106{
5a240838 107 return permutation[j];
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108}
109
110void block_permute(INT16 *block);
111
3d03c0a2 112#if defined(HAVE_MMX)
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113
114#define MM_MMX 0x0001 /* standard MMX */
115#define MM_3DNOW 0x0004 /* AMD 3DNOW */
116#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
117#define MM_SSE 0x0008 /* SSE functions */
118#define MM_SSE2 0x0010 /* PIV SSE2 functions */
119
120extern int mm_flags;
121
122int mm_support(void);
123
124static inline void emms(void)
125{
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126 __asm __volatile ("emms;":::"memory");
127}
128
129#define emms_c() \
130{\
131 if (mm_flags & MM_MMX)\
132 emms();\
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133}
134
135#define __align8 __attribute__ ((aligned (8)))
136
137void dsputil_init_mmx(void);
57060b1e 138void dsputil_set_bit_exact_mmx(void);
de6d9b64 139
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140#elif defined(ARCH_ARMV4L)
141
142#define emms_c()
143
144/* This is to use 4 bytes read to the IDCT pointers for some 'zero'
145 line ptimizations */
146#define __align8 __attribute__ ((aligned (4)))
147
148void dsputil_init_armv4l(void);
149
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150#elif defined(HAVE_MLIB)
151
152#define emms_c()
153
154/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
155#define __align8 __attribute__ ((aligned (8)))
156
157void dsputil_init_mlib(void);
158
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159#elif defined(ARCH_ALPHA)
160
161#define emms_c()
162#define __align8 __attribute__ ((aligned (8)))
163
164void dsputil_init_alpha(void);
165
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166#elif defined(ARCH_POWERPC)
167
168#define emms_c()
169#define __align8 __attribute__ ((aligned (16)))
170
171void dsputil_init_altivec(void);
172
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173#else
174
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175#define emms_c()
176
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177#define __align8
178
179#endif
180
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181#ifdef __GNUC__
182
183struct unaligned_64 { uint64_t l; } __attribute__((packed));
184struct unaligned_32 { uint32_t l; } __attribute__((packed));
185
186#define LD32(a) (((const struct unaligned_32 *) (a))->l)
187#define LD64(a) (((const struct unaligned_64 *) (a))->l)
188
189#define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b)
190
191#else /* __GNUC__ */
192
193#define LD32(a) (*((uint32_t*)(a)))
194#define LD64(a) (*((uint64_t*)(a)))
195
196#define ST32(a, b) *((uint32_t*)(a)) = (b)
197
198#endif /* !__GNUC__ */
199
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200/* PSNR */
201void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3],
202 int orig_linesize[3], int coded_linesize,
203 AVCodecContext *avctx);
204
de6d9b64 205#endif