Statistics
| Branch: | Revision:

ffmpeg / libavcodec / dsputil.h @ 513fbd8e

History | View | Annotate | Download (22.4 KB)

1
/*
2
 * DSP utils
3
 * Copyright (c) 2000, 2001, 2002 Fabrice Bellard.
4
 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5
 *
6
 * This library is free software; you can redistribute it and/or
7
 * modify it under the terms of the GNU Lesser General Public
8
 * License as published by the Free Software Foundation; either
9
 * version 2 of the License, or (at your option) any later version.
10
 *
11
 * This library is distributed in the hope that it will be useful,
12
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14
 * Lesser General Public License for more details.
15
 *
16
 * You should have received a copy of the GNU Lesser General Public
17
 * License along with this library; if not, write to the Free Software
18
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19
 */
20

    
21
/**
22
 * @file dsputil.h
23
 * DSP utils.
24
 * note, many functions in here may use MMX which trashes the FPU state, it is
25
 * absolutely necessary to call emms_c() between dsp & float/double code
26
 */
27

    
28
#ifndef DSPUTIL_H
29
#define DSPUTIL_H
30

    
31
#include "common.h"
32
#include "avcodec.h"
33

    
34

    
35
//#define DEBUG
36
/* dct code */
37
typedef short DCTELEM;
38
typedef int DWTELEM;
39

    
40
void fdct_ifast (DCTELEM *data);
41
void fdct_ifast248 (DCTELEM *data);
42
void ff_jpeg_fdct_islow (DCTELEM *data);
43
void ff_fdct248_islow (DCTELEM *data);
44

    
45
void j_rev_dct (DCTELEM *data);
46
void j_rev_dct4 (DCTELEM *data);
47
void j_rev_dct2 (DCTELEM *data);
48
void j_rev_dct1 (DCTELEM *data);
49

    
50
void ff_fdct_mmx(DCTELEM *block);
51
void ff_fdct_mmx2(DCTELEM *block);
52
void ff_fdct_sse2(DCTELEM *block);
53

    
54
void ff_h264_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride);
55
void ff_h264_idct_add_c(uint8_t *dst, DCTELEM *block, int stride);
56
void ff_h264_idct8_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
57
void ff_h264_idct_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
58
void ff_h264_lowres_idct_add_c(uint8_t *dst, int stride, DCTELEM *block);
59
void ff_h264_lowres_idct_put_c(uint8_t *dst, int stride, DCTELEM *block);
60

    
61
/* encoding scans */
62
extern const uint8_t ff_alternate_horizontal_scan[64];
63
extern const uint8_t ff_alternate_vertical_scan[64];
64
extern const uint8_t ff_zigzag_direct[64];
65
extern const uint8_t ff_zigzag248_direct[64];
66

    
67
/* pixel operations */
68
#define MAX_NEG_CROP 1024
69

    
70
/* temporary */
71
extern uint32_t squareTbl[512];
72
extern uint8_t cropTbl[256 + 2 * MAX_NEG_CROP];
73

    
74
/* VP3 DSP functions */
75
void ff_vp3_idct_c(DCTELEM *block/* align 16*/);
76
void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
77
void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
78

    
79
/* minimum alignment rules ;)
80
if u notice errors in the align stuff, need more alignment for some asm code for some cpu
81
or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ...
82

83
!warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible)
84
i (michael) didnt check them, these are just the alignents which i think could be reached easily ...
85

86
!future video codecs might need functions with less strict alignment
87
*/
88

    
89
/*
90
void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
91
void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
92
void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
93
void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
94
void clear_blocks_c(DCTELEM *blocks);
95
*/
96

    
97
/* add and put pixel (decoding) */
98
// blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
99
//h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
100
typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
101
typedef void (*tpel_mc_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int w, int h);
102
typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
103
typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
104
typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
105
typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);
106

    
107
#define DEF_OLD_QPEL(name)\
108
void ff_put_        ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
109
void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
110
void ff_avg_        ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
111

    
112
DEF_OLD_QPEL(qpel16_mc11_old_c)
113
DEF_OLD_QPEL(qpel16_mc31_old_c)
114
DEF_OLD_QPEL(qpel16_mc12_old_c)
115
DEF_OLD_QPEL(qpel16_mc32_old_c)
116
DEF_OLD_QPEL(qpel16_mc13_old_c)
117
DEF_OLD_QPEL(qpel16_mc33_old_c)
118
DEF_OLD_QPEL(qpel8_mc11_old_c)
119
DEF_OLD_QPEL(qpel8_mc31_old_c)
120
DEF_OLD_QPEL(qpel8_mc12_old_c)
121
DEF_OLD_QPEL(qpel8_mc32_old_c)
122
DEF_OLD_QPEL(qpel8_mc13_old_c)
123
DEF_OLD_QPEL(qpel8_mc33_old_c)
124

    
125
#define CALL_2X_PIXELS(a, b, n)\
126
static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
127
    b(block  , pixels  , line_size, h);\
128
    b(block+n, pixels+n, line_size, h);\
129
}
130

    
131
/* motion estimation */
132
// h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
133
// allthough currently h<4 is not used as functions with width <8 are not used and neither implemented
134
typedef int (*me_cmp_func)(void /*MpegEncContext*/ *s, uint8_t *blk1/*align width (8 or 16)*/, uint8_t *blk2/*align 1*/, int line_size, int h)/* __attribute__ ((const))*/;
135

    
136

    
137
// for snow slices
138
typedef struct slice_buffer_s slice_buffer;
139

    
140
/**
141
 * DSPContext.
142
 */
143
typedef struct DSPContext {
144
    /* pixel ops : interface with DCT */
145
    void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
146
    void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
147
    void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
148
    void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
149
    void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
150
    void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);
151
    void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);
152
    /**
153
     * translational global motion compensation.
154
     */
155
    void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
156
    /**
157
     * global motion compensation.
158
     */
159
    void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
160
                    int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
161
    void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
162
    int (*pix_sum)(uint8_t * pix, int line_size);
163
    int (*pix_norm1)(uint8_t * pix, int line_size);
164
// 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
165

    
166
    me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */
167
    me_cmp_func sse[5];
168
    me_cmp_func hadamard8_diff[5];
169
    me_cmp_func dct_sad[5];
170
    me_cmp_func quant_psnr[5];
171
    me_cmp_func bit[5];
172
    me_cmp_func rd[5];
173
    me_cmp_func vsad[5];
174
    me_cmp_func vsse[5];
175
    me_cmp_func nsse[5];
176
    me_cmp_func w53[5];
177
    me_cmp_func w97[5];
178
    me_cmp_func dct_max[5];
179
    me_cmp_func dct264_sad[5];
180

    
181
    me_cmp_func me_pre_cmp[5];
182
    me_cmp_func me_cmp[5];
183
    me_cmp_func me_sub_cmp[5];
184
    me_cmp_func mb_cmp[5];
185
    me_cmp_func ildct_cmp[5]; //only width 16 used
186
    me_cmp_func frame_skip_cmp[5]; //only width 8 used
187

    
188
    /**
189
     * Halfpel motion compensation with rounding (a+b+1)>>1.
190
     * this is an array[4][4] of motion compensation funcions for 4
191
     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
192
     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
193
     * @param block destination where the result is stored
194
     * @param pixels source
195
     * @param line_size number of bytes in a horizontal line of block
196
     * @param h height
197
     */
198
    op_pixels_func put_pixels_tab[4][4];
199

    
200
    /**
201
     * Halfpel motion compensation with rounding (a+b+1)>>1.
202
     * This is an array[4][4] of motion compensation functions for 4
203
     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
204
     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
205
     * @param block destination into which the result is averaged (a+b+1)>>1
206
     * @param pixels source
207
     * @param line_size number of bytes in a horizontal line of block
208
     * @param h height
209
     */
210
    op_pixels_func avg_pixels_tab[4][4];
211

    
212
    /**
213
     * Halfpel motion compensation with no rounding (a+b)>>1.
214
     * this is an array[2][4] of motion compensation funcions for 2
215
     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
216
     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
217
     * @param block destination where the result is stored
218
     * @param pixels source
219
     * @param line_size number of bytes in a horizontal line of block
220
     * @param h height
221
     */
222
    op_pixels_func put_no_rnd_pixels_tab[4][4];
223

    
224
    /**
225
     * Halfpel motion compensation with no rounding (a+b)>>1.
226
     * this is an array[2][4] of motion compensation funcions for 2
227
     * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
228
     * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
229
     * @param block destination into which the result is averaged (a+b)>>1
230
     * @param pixels source
231
     * @param line_size number of bytes in a horizontal line of block
232
     * @param h height
233
     */
234
    op_pixels_func avg_no_rnd_pixels_tab[4][4];
235

    
236
    void (*put_no_rnd_pixels_l2[2])(uint8_t *block/*align width (8 or 16)*/, const uint8_t *a/*align 1*/, const uint8_t *b/*align 1*/, int line_size, int h);
237

    
238
    /**
239
     * Thirdpel motion compensation with rounding (a+b+1)>>1.
240
     * this is an array[12] of motion compensation funcions for the 9 thirdpel positions<br>
241
     * *pixels_tab[ xthirdpel + 4*ythirdpel ]
242
     * @param block destination where the result is stored
243
     * @param pixels source
244
     * @param line_size number of bytes in a horizontal line of block
245
     * @param h height
246
     */
247
    tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
248
    tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
249

    
250
    qpel_mc_func put_qpel_pixels_tab[2][16];
251
    qpel_mc_func avg_qpel_pixels_tab[2][16];
252
    qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
253
    qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
254
    qpel_mc_func put_mspel_pixels_tab[8];
255

    
256
    /**
257
     * h264 Chram MC
258
     */
259
    h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
260
    h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
261

    
262
    qpel_mc_func put_h264_qpel_pixels_tab[4][16];
263
    qpel_mc_func avg_h264_qpel_pixels_tab[4][16];
264

    
265
    h264_weight_func weight_h264_pixels_tab[10];
266
    h264_biweight_func biweight_h264_pixels_tab[10];
267

    
268
    me_cmp_func pix_abs[2][4];
269

    
270
    /* huffyuv specific */
271
    void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
272
    void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
273
    /**
274
     * subtract huffyuv's variant of median prediction
275
     * note, this might read from src1[-1], src2[-1]
276
     */
277
    void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
278
    void (*bswap_buf)(uint32_t *dst, uint32_t *src, int w);
279

    
280
    void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
281
    void (*h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
282
    void (*h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
283
    void (*h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
284
    void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
285
    void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
286

    
287
    void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
288
    void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
289

    
290
    void (*h261_loop_filter)(uint8_t *src, int stride);
291

    
292
    /* (I)DCT */
293
    void (*fdct)(DCTELEM *block/* align 16*/);
294
    void (*fdct248)(DCTELEM *block/* align 16*/);
295

    
296
    /* IDCT really*/
297
    void (*idct)(DCTELEM *block/* align 16*/);
298

    
299
    /**
300
     * block -> idct -> clip to unsigned 8 bit -> dest.
301
     * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
302
     * @param line_size size in bytes of a horizotal line of dest
303
     */
304
    void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
305

    
306
    /**
307
     * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
308
     * @param line_size size in bytes of a horizotal line of dest
309
     */
310
    void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
311

    
312
    /**
313
     * idct input permutation.
314
     * several optimized IDCTs need a permutated input (relative to the normal order of the reference
315
     * IDCT)
316
     * this permutation must be performed before the idct_put/add, note, normally this can be merged
317
     * with the zigzag/alternate scan<br>
318
     * an example to avoid confusion:
319
     * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
320
     * - (x -> referece dct -> reference idct -> x)
321
     * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
322
     * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
323
     */
324
    uint8_t idct_permutation[64];
325
    int idct_permutation_type;
326
#define FF_NO_IDCT_PERM 1
327
#define FF_LIBMPEG2_IDCT_PERM 2
328
#define FF_SIMPLE_IDCT_PERM 3
329
#define FF_TRANSPOSE_IDCT_PERM 4
330
#define FF_PARTTRANS_IDCT_PERM 5
331

    
332
    int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
333
    void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
334
#define BASIS_SHIFT 16
335
#define RECON_SHIFT 6
336

    
337
    void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);
338
    void (*h264_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
339
    void (*h264_idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
340
    void (*h264_idct8_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
341

    
342
    /* snow wavelet */
343
    void (*vertical_compose97i)(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
344
    void (*horizontal_compose97i)(DWTELEM *b, int width);
345
    void (*inner_add_yblock)(uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
346

    
347
    void (*prefetch)(void *mem, int stride, int h);
348
} DSPContext;
349

    
350
void dsputil_static_init(void);
351
void dsputil_init(DSPContext* p, AVCodecContext *avctx);
352

    
353
/**
354
 * permute block according to permuatation.
355
 * @param last last non zero element in scantable order
356
 */
357
void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
358

    
359
void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
360

    
361
#define         BYTE_VEC32(c)   ((c)*0x01010101UL)
362

    
363
static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
364
{
365
    return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
366
}
367

    
368
static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
369
{
370
    return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
371
}
372

    
373
static inline int get_penalty_factor(int lambda, int lambda2, int type){
374
    switch(type&0xFF){
375
    default:
376
    case FF_CMP_SAD:
377
        return lambda>>FF_LAMBDA_SHIFT;
378
    case FF_CMP_DCT:
379
        return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
380
    case FF_CMP_W53:
381
        return (4*lambda)>>(FF_LAMBDA_SHIFT);
382
    case FF_CMP_W97:
383
        return (2*lambda)>>(FF_LAMBDA_SHIFT);
384
    case FF_CMP_SATD:
385
    case FF_CMP_DCT264:
386
        return (2*lambda)>>FF_LAMBDA_SHIFT;
387
    case FF_CMP_RD:
388
    case FF_CMP_PSNR:
389
    case FF_CMP_SSE:
390
    case FF_CMP_NSSE:
391
        return lambda2>>FF_LAMBDA_SHIFT;
392
    case FF_CMP_BIT:
393
        return 1;
394
    }
395
}
396

    
397
/**
398
 * Empty mmx state.
399
 * this must be called between any dsp function and float/double code.
400
 * for example sin(); dsp->idct_put(); emms_c(); cos()
401
 */
402
#define emms_c()
403

    
404
/* should be defined by architectures supporting
405
   one or more MultiMedia extension */
406
int mm_support(void);
407

    
408
#ifdef __GNUC__
409
  #define DECLARE_ALIGNED_16(t,v)       t v __attribute__ ((aligned (16)))
410
#else
411
  #define DECLARE_ALIGNED_16(t,v)      __declspec(align(16)) t v
412
#endif
413

    
414
#if defined(HAVE_MMX)
415

    
416
#undef emms_c
417

    
418
#define MM_MMX    0x0001 /* standard MMX */
419
#define MM_3DNOW  0x0004 /* AMD 3DNOW */
420
#define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
421
#define MM_SSE    0x0008 /* SSE functions */
422
#define MM_SSE2   0x0010 /* PIV SSE2 functions */
423
#define MM_3DNOWEXT  0x0020 /* AMD 3DNowExt */
424

    
425
extern int mm_flags;
426

    
427
void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
428
void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
429
void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
430

    
431
static inline void emms(void)
432
{
433
    __asm __volatile ("emms;":::"memory");
434
}
435

    
436

    
437
#define emms_c() \
438
{\
439
    if (mm_flags & MM_MMX)\
440
        emms();\
441
}
442

    
443
#ifdef __GNUC__
444
  #define DECLARE_ALIGNED_8(t,v)       t v __attribute__ ((aligned (8)))
445
#else
446
  #define DECLARE_ALIGNED_8(t,v)      __declspec(align(8)) t v
447
#endif
448

    
449
#define STRIDE_ALIGN 8
450

    
451
void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
452
void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
453

    
454
#elif defined(ARCH_ARMV4L)
455

    
456
/* This is to use 4 bytes read to the IDCT pointers for some 'zero'
457
   line optimizations */
458
#define DECLARE_ALIGNED_8(t,v)    t v __attribute__ ((aligned (4)))
459
#define STRIDE_ALIGN 4
460

    
461
#define MM_IWMMXT    0x0100 /* XScale IWMMXT */
462

    
463
extern int mm_flags;
464

    
465
void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
466

    
467
#elif defined(HAVE_MLIB)
468

    
469
/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
470
#define DECLARE_ALIGNED_8(t,v)    t v __attribute__ ((aligned (8)))
471
#define STRIDE_ALIGN 8
472

    
473
void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
474

    
475
#elif defined(ARCH_SPARC)
476

    
477
/* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
478
#define DECLARE_ALIGNED_8(t,v)    t v __attribute__ ((aligned (8)))
479
#define STRIDE_ALIGN 8
480
void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
481

    
482
#elif defined(ARCH_ALPHA)
483

    
484
#define DECLARE_ALIGNED_8(t,v)    t v __attribute__ ((aligned (8)))
485
#define STRIDE_ALIGN 8
486

    
487
void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
488

    
489
#elif defined(ARCH_POWERPC)
490

    
491
#define MM_ALTIVEC    0x0001 /* standard AltiVec */
492

    
493
extern int mm_flags;
494

    
495
#if defined(HAVE_ALTIVEC) && !defined(CONFIG_DARWIN)
496
#define pixel altivec_pixel
497
#include <altivec.h>
498
#undef pixel
499
#endif
500

    
501
#define DECLARE_ALIGNED_8(t,v)    t v __attribute__ ((aligned (16)))
502
#define STRIDE_ALIGN 16
503

    
504
void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
505

    
506
#elif defined(HAVE_MMI)
507

    
508
#define DECLARE_ALIGNED_8(t,v)    t v __attribute__ ((aligned (16)))
509
#define STRIDE_ALIGN 16
510

    
511
void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
512

    
513
#elif defined(ARCH_SH4)
514

    
515
#define DECLARE_ALIGNED_8(t,v)    t v __attribute__ ((aligned (8)))
516
#define STRIDE_ALIGN 8
517

    
518
void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
519

    
520
#else
521

    
522
#define DECLARE_ALIGNED_8(t,v)    t v __attribute__ ((aligned (8)))
523
#define STRIDE_ALIGN 8
524

    
525
#endif
526

    
527
#ifdef __GNUC__
528

    
529
struct unaligned_64 { uint64_t l; } __attribute__((packed));
530
struct unaligned_32 { uint32_t l; } __attribute__((packed));
531
struct unaligned_16 { uint16_t l; } __attribute__((packed));
532

    
533
#define LD16(a) (((const struct unaligned_16 *) (a))->l)
534
#define LD32(a) (((const struct unaligned_32 *) (a))->l)
535
#define LD64(a) (((const struct unaligned_64 *) (a))->l)
536

    
537
#define ST16(a, b) (((struct unaligned_16 *) (a))->l) = (b)
538
#define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b)
539

    
540
#else /* __GNUC__ */
541

    
542
#define LD16(a) (*((uint16_t*)(a)))
543
#define LD32(a) (*((uint32_t*)(a)))
544
#define LD64(a) (*((uint64_t*)(a)))
545

    
546
#define ST32(a, b) *((uint32_t*)(a)) = (b)
547

    
548
#endif /* !__GNUC__ */
549

    
550
/* PSNR */
551
void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
552
              int orig_linesize[3], int coded_linesize,
553
              AVCodecContext *avctx);
554

    
555
/* FFT computation */
556

    
557
/* NOTE: soon integer code will be added, so you must use the
558
   FFTSample type */
559
typedef float FFTSample;
560

    
561
typedef struct FFTComplex {
562
    FFTSample re, im;
563
} FFTComplex;
564

    
565
typedef struct FFTContext {
566
    int nbits;
567
    int inverse;
568
    uint16_t *revtab;
569
    FFTComplex *exptab;
570
    FFTComplex *exptab1; /* only used by SSE code */
571
    void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
572
} FFTContext;
573

    
574
int ff_fft_init(FFTContext *s, int nbits, int inverse);
575
void ff_fft_permute(FFTContext *s, FFTComplex *z);
576
void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
577
void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
578
void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
579
void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
580
void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
581

    
582
static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
583
{
584
    s->fft_calc(s, z);
585
}
586
void ff_fft_end(FFTContext *s);
587

    
588
/* MDCT computation */
589

    
590
typedef struct MDCTContext {
591
    int n;  /* size of MDCT (i.e. number of input data * 2) */
592
    int nbits; /* n = 2^nbits */
593
    /* pre/post rotation tables */
594
    FFTSample *tcos;
595
    FFTSample *tsin;
596
    FFTContext fft;
597
} MDCTContext;
598

    
599
int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
600
void ff_imdct_calc(MDCTContext *s, FFTSample *output,
601
                const FFTSample *input, FFTSample *tmp);
602
void ff_mdct_calc(MDCTContext *s, FFTSample *out,
603
               const FFTSample *input, FFTSample *tmp);
604
void ff_mdct_end(MDCTContext *s);
605

    
606
#define WARPER8_16(name8, name16)\
607
static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
608
    return name8(s, dst           , src           , stride, h)\
609
          +name8(s, dst+8         , src+8         , stride, h);\
610
}
611

    
612
#define WARPER8_16_SQ(name8, name16)\
613
static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
614
    int score=0;\
615
    score +=name8(s, dst           , src           , stride, 8);\
616
    score +=name8(s, dst+8         , src+8         , stride, 8);\
617
    if(h==16){\
618
        dst += 8*stride;\
619
        src += 8*stride;\
620
        score +=name8(s, dst           , src           , stride, 8);\
621
        score +=name8(s, dst+8         , src+8         , stride, 8);\
622
    }\
623
    return score;\
624
}
625

    
626
#endif