memory functions are exported
[libav.git] / libavcodec / dsputil.h
CommitLineData
ff4ec49e
FB
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 */
de6d9b64
FB
19#ifndef DSPUTIL_H
20#define DSPUTIL_H
21
22#include "common.h"
43f1708f 23#include "avcodec.h"
de6d9b64 24
44eb4951 25//#define DEBUG
de6d9b64
FB
26/* dct code */
27typedef short DCTELEM;
28
03c94ede 29void fdct_ifast (DCTELEM *data);
de6d9b64
FB
30
31void j_rev_dct (DCTELEM *data);
32
33void fdct_mmx(DCTELEM *block);
34
03c94ede 35extern void (*av_fdct)(DCTELEM *block);
de6d9b64 36
e0eac44e
FB
37/* encoding scans */
38extern UINT8 ff_alternate_horizontal_scan[64];
39extern UINT8 ff_alternate_vertical_scan[64];
40extern UINT8 zigzag_direct[64];
41
5a240838
MN
42/* permutation table */
43extern UINT8 permutation[64];
44
de6d9b64
FB
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];
de6d9b64
FB
51
52void dsputil_init(void);
53
54/* pixel ops : interface with DCT */
55
4af7bcc1 56extern void (*ff_idct)(DCTELEM *block);
8ee14970
FB
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);
de6d9b64
FB
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);
44eb4951 65
de6d9b64
FB
66
67void get_pixels_c(DCTELEM *block, const UINT8 *pixels, int line_size);
9dbcbd92 68void diff_pixels_c(DCTELEM *block, const UINT8 *s1, const UINT8 *s2, int stride);
de6d9b64
FB
69void put_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
70void add_pixels_clamped_c(const DCTELEM *block, UINT8 *pixels, int line_size);
649c00c9 71void clear_blocks_c(DCTELEM *blocks);
de6d9b64
FB
72
73/* add and put pixel (decoding) */
74typedef void (*op_pixels_func)(UINT8 *block, const UINT8 *pixels, int line_size, int h);
44eb4951 75typedef void (*qpel_mc_func)(UINT8 *dst, UINT8 *src, int dstStride, int srcStride, int mx, int my);
de6d9b64
FB
76
77extern op_pixels_func put_pixels_tab[4];
78extern op_pixels_func avg_pixels_tab[4];
79extern op_pixels_func put_no_rnd_pixels_tab[4];
80extern op_pixels_func avg_no_rnd_pixels_tab[4];
44eb4951
MN
81extern qpel_mc_func qpel_mc_rnd_tab[16];
82extern qpel_mc_func qpel_mc_no_rnd_tab[16];
83
de6d9b64
FB
84/* motion estimation */
85
ba6802de 86typedef int (*op_pixels_abs_func)(UINT8 *blk1, UINT8 *blk2, int line_size);
de6d9b64
FB
87
88extern op_pixels_abs_func pix_abs16x16;
89extern op_pixels_abs_func pix_abs16x16_x2;
90extern op_pixels_abs_func pix_abs16x16_y2;
91extern op_pixels_abs_func pix_abs16x16_xy2;
ba6802de
MN
92extern op_pixels_abs_func pix_abs8x8;
93extern op_pixels_abs_func pix_abs8x8_x2;
94extern op_pixels_abs_func pix_abs8x8_y2;
95extern op_pixels_abs_func pix_abs8x8_xy2;
96
97int pix_abs16x16_c(UINT8 *blk1, UINT8 *blk2, int lx);
98int pix_abs16x16_x2_c(UINT8 *blk1, UINT8 *blk2, int lx);
99int pix_abs16x16_y2_c(UINT8 *blk1, UINT8 *blk2, int lx);
100int pix_abs16x16_xy2_c(UINT8 *blk1, UINT8 *blk2, int lx);
de6d9b64 101
e0eac44e
FB
102static inline int block_permute_op(int j)
103{
5a240838 104 return permutation[j];
e0eac44e
FB
105}
106
107void block_permute(INT16 *block);
108
3d03c0a2 109#if defined(HAVE_MMX)
de6d9b64
FB
110
111#define MM_MMX 0x0001 /* standard MMX */
112#define MM_3DNOW 0x0004 /* AMD 3DNOW */
113#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
114#define MM_SSE 0x0008 /* SSE functions */
115#define MM_SSE2 0x0010 /* PIV SSE2 functions */
116
117extern int mm_flags;
118
119int mm_support(void);
120
121static inline void emms(void)
122{
fb16b7e7
FB
123 __asm __volatile ("emms;":::"memory");
124}
125
126#define emms_c() \
127{\
128 if (mm_flags & MM_MMX)\
129 emms();\
de6d9b64
FB
130}
131
132#define __align8 __attribute__ ((aligned (8)))
133
134void dsputil_init_mmx(void);
57060b1e 135void dsputil_set_bit_exact_mmx(void);
de6d9b64 136
3d03c0a2
FB
137#elif defined(ARCH_ARMV4L)
138
139#define emms_c()
140
141/* This is to use 4 bytes read to the IDCT pointers for some 'zero'
142 line ptimizations */
143#define __align8 __attribute__ ((aligned (4)))
144
145void dsputil_init_armv4l(void);
146
c34270f5
FB
147#elif defined(HAVE_MLIB)
148
149#define emms_c()
150
151/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
152#define __align8 __attribute__ ((aligned (8)))
153
154void dsputil_init_mlib(void);
155
1e98dffb
NK
156#elif defined(ARCH_ALPHA)
157
158#define emms_c()
159#define __align8 __attribute__ ((aligned (8)))
160
161void dsputil_init_alpha(void);
162
de6d9b64
FB
163#else
164
fb16b7e7
FB
165#define emms_c()
166
de6d9b64
FB
167#define __align8
168
169#endif
170
43f1708f
J
171/* PSNR */
172void get_psnr(UINT8 *orig_image[3], UINT8 *coded_image[3],
173 int orig_linesize[3], int coded_linesize,
174 AVCodecContext *avctx);
175
de6d9b64 176#endif