b076e60f58d5464962b8eb32ad50fdf0ae56b186
[libav.git] / libavcodec / dsputil.h
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 file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 /**
24 * @file dsputil.h
25 * DSP utils.
26 * note, many functions in here may use MMX which trashes the FPU state, it is
27 * absolutely necessary to call emms_c() between dsp & float/double code
28 */
29
30 #ifndef FFMPEG_DSPUTIL_H
31 #define FFMPEG_DSPUTIL_H
32
33 #include "avcodec.h"
34
35
36 //#define DEBUG
37 /* dct code */
38 typedef short DCTELEM;
39 typedef int DWTELEM;
40 typedef short IDWTELEM;
41
42 void fdct_ifast (DCTELEM *data);
43 void fdct_ifast248 (DCTELEM *data);
44 void ff_jpeg_fdct_islow (DCTELEM *data);
45 void ff_fdct248_islow (DCTELEM *data);
46
47 void j_rev_dct (DCTELEM *data);
48 void j_rev_dct4 (DCTELEM *data);
49 void j_rev_dct2 (DCTELEM *data);
50 void j_rev_dct1 (DCTELEM *data);
51 void ff_wmv2_idct_c(DCTELEM *data);
52
53 void ff_fdct_mmx(DCTELEM *block);
54 void ff_fdct_mmx2(DCTELEM *block);
55 void ff_fdct_sse2(DCTELEM *block);
56
57 void ff_h264_idct8_add_c(uint8_t *dst, DCTELEM *block, int stride);
58 void ff_h264_idct_add_c(uint8_t *dst, DCTELEM *block, int stride);
59 void ff_h264_idct8_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
60 void ff_h264_idct_dc_add_c(uint8_t *dst, DCTELEM *block, int stride);
61 void ff_h264_lowres_idct_add_c(uint8_t *dst, int stride, DCTELEM *block);
62 void ff_h264_lowres_idct_put_c(uint8_t *dst, int stride, DCTELEM *block);
63
64 void ff_vector_fmul_add_add_c(float *dst, const float *src0, const float *src1,
65 const float *src2, int src3, int blocksize, int step);
66 void ff_float_to_int16_c(int16_t *dst, const float *src, int len);
67
68 /* encoding scans */
69 extern const uint8_t ff_alternate_horizontal_scan[64];
70 extern const uint8_t ff_alternate_vertical_scan[64];
71 extern const uint8_t ff_zigzag_direct[64];
72 extern const uint8_t ff_zigzag248_direct[64];
73
74 /* pixel operations */
75 #define MAX_NEG_CROP 1024
76
77 /* temporary */
78 extern uint32_t ff_squareTbl[512];
79 extern uint8_t ff_cropTbl[256 + 2 * MAX_NEG_CROP];
80
81 /* VP3 DSP functions */
82 void ff_vp3_idct_c(DCTELEM *block/* align 16*/);
83 void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
84 void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
85
86 /* 1/2^n downscaling functions from imgconvert.c */
87 void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
88 void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
89 void ff_shrink44(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
90 void ff_shrink88(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
91
92 void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
93 int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
94
95 /* minimum alignment rules ;)
96 if u notice errors in the align stuff, need more alignment for some asm code for some cpu
97 or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ...
98
99 !warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible)
100 i (michael) didnt check them, these are just the alignents which i think could be reached easily ...
101
102 !future video codecs might need functions with less strict alignment
103 */
104
105 /*
106 void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
107 void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
108 void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
109 void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
110 void clear_blocks_c(DCTELEM *blocks);
111 */
112
113 /* add and put pixel (decoding) */
114 // blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
115 //h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
116 typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
117 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);
118 typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
119 typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
120 typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
121 typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);
122
123 #define DEF_OLD_QPEL(name)\
124 void ff_put_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
125 void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
126 void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
127
128 DEF_OLD_QPEL(qpel16_mc11_old_c)
129 DEF_OLD_QPEL(qpel16_mc31_old_c)
130 DEF_OLD_QPEL(qpel16_mc12_old_c)
131 DEF_OLD_QPEL(qpel16_mc32_old_c)
132 DEF_OLD_QPEL(qpel16_mc13_old_c)
133 DEF_OLD_QPEL(qpel16_mc33_old_c)
134 DEF_OLD_QPEL(qpel8_mc11_old_c)
135 DEF_OLD_QPEL(qpel8_mc31_old_c)
136 DEF_OLD_QPEL(qpel8_mc12_old_c)
137 DEF_OLD_QPEL(qpel8_mc32_old_c)
138 DEF_OLD_QPEL(qpel8_mc13_old_c)
139 DEF_OLD_QPEL(qpel8_mc33_old_c)
140
141 #define CALL_2X_PIXELS(a, b, n)\
142 static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
143 b(block , pixels , line_size, h);\
144 b(block+n, pixels+n, line_size, h);\
145 }
146
147 /* motion estimation */
148 // h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
149 // although currently h<4 is not used as functions with width <8 are neither used nor implemented
150 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))*/;
151
152
153 // for snow slices
154 typedef struct slice_buffer_s slice_buffer;
155
156 /**
157 * DSPContext.
158 */
159 typedef struct DSPContext {
160 /* pixel ops : interface with DCT */
161 void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
162 void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
163 void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
164 void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
165 void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
166 void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);
167 void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);
168 int (*sum_abs_dctelem)(DCTELEM *block/*align 16*/);
169 /**
170 * translational global motion compensation.
171 */
172 void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
173 /**
174 * global motion compensation.
175 */
176 void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
177 int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
178 void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
179 int (*pix_sum)(uint8_t * pix, int line_size);
180 int (*pix_norm1)(uint8_t * pix, int line_size);
181 // 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
182
183 me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */
184 me_cmp_func sse[5];
185 me_cmp_func hadamard8_diff[5];
186 me_cmp_func dct_sad[5];
187 me_cmp_func quant_psnr[5];
188 me_cmp_func bit[5];
189 me_cmp_func rd[5];
190 me_cmp_func vsad[5];
191 me_cmp_func vsse[5];
192 me_cmp_func nsse[5];
193 me_cmp_func w53[5];
194 me_cmp_func w97[5];
195 me_cmp_func dct_max[5];
196 me_cmp_func dct264_sad[5];
197
198 me_cmp_func me_pre_cmp[5];
199 me_cmp_func me_cmp[5];
200 me_cmp_func me_sub_cmp[5];
201 me_cmp_func mb_cmp[5];
202 me_cmp_func ildct_cmp[5]; //only width 16 used
203 me_cmp_func frame_skip_cmp[5]; //only width 8 used
204
205 int (*ssd_int8_vs_int16)(const int8_t *pix1, const int16_t *pix2,
206 int size);
207
208 /**
209 * Halfpel motion compensation with rounding (a+b+1)>>1.
210 * this is an array[4][4] of motion compensation functions for 4
211 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
212 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
213 * @param block destination where the result is stored
214 * @param pixels source
215 * @param line_size number of bytes in a horizontal line of block
216 * @param h height
217 */
218 op_pixels_func put_pixels_tab[4][4];
219
220 /**
221 * Halfpel motion compensation with rounding (a+b+1)>>1.
222 * This is an array[4][4] of motion compensation functions for 4
223 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
224 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
225 * @param block destination into which the result is averaged (a+b+1)>>1
226 * @param pixels source
227 * @param line_size number of bytes in a horizontal line of block
228 * @param h height
229 */
230 op_pixels_func avg_pixels_tab[4][4];
231
232 /**
233 * Halfpel motion compensation with no rounding (a+b)>>1.
234 * this is an array[2][4] of motion compensation functions for 2
235 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
236 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
237 * @param block destination where the result is stored
238 * @param pixels source
239 * @param line_size number of bytes in a horizontal line of block
240 * @param h height
241 */
242 op_pixels_func put_no_rnd_pixels_tab[4][4];
243
244 /**
245 * Halfpel motion compensation with no rounding (a+b)>>1.
246 * this is an array[2][4] of motion compensation functions for 2
247 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
248 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
249 * @param block destination into which the result is averaged (a+b)>>1
250 * @param pixels source
251 * @param line_size number of bytes in a horizontal line of block
252 * @param h height
253 */
254 op_pixels_func avg_no_rnd_pixels_tab[4][4];
255
256 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);
257
258 /**
259 * Thirdpel motion compensation with rounding (a+b+1)>>1.
260 * this is an array[12] of motion compensation functions for the 9 thirdpe
261 * positions<br>
262 * *pixels_tab[ xthirdpel + 4*ythirdpel ]
263 * @param block destination where the result is stored
264 * @param pixels source
265 * @param line_size number of bytes in a horizontal line of block
266 * @param h height
267 */
268 tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
269 tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
270
271 qpel_mc_func put_qpel_pixels_tab[2][16];
272 qpel_mc_func avg_qpel_pixels_tab[2][16];
273 qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
274 qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
275 qpel_mc_func put_mspel_pixels_tab[8];
276
277 /**
278 * h264 Chroma MC
279 */
280 h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
281 /* This is really one func used in VC-1 decoding */
282 h264_chroma_mc_func put_no_rnd_h264_chroma_pixels_tab[3];
283 h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
284
285 qpel_mc_func put_h264_qpel_pixels_tab[4][16];
286 qpel_mc_func avg_h264_qpel_pixels_tab[4][16];
287
288 qpel_mc_func put_2tap_qpel_pixels_tab[4][16];
289 qpel_mc_func avg_2tap_qpel_pixels_tab[4][16];
290
291 h264_weight_func weight_h264_pixels_tab[10];
292 h264_biweight_func biweight_h264_pixels_tab[10];
293
294 /* AVS specific */
295 qpel_mc_func put_cavs_qpel_pixels_tab[2][16];
296 qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];
297 void (*cavs_filter_lv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
298 void (*cavs_filter_lh)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
299 void (*cavs_filter_cv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
300 void (*cavs_filter_ch)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
301 void (*cavs_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
302
303 me_cmp_func pix_abs[2][4];
304
305 /* huffyuv specific */
306 void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
307 void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
308 /**
309 * subtract huffyuv's variant of median prediction
310 * note, this might read from src1[-1], src2[-1]
311 */
312 void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
313 void (*bswap_buf)(uint32_t *dst, uint32_t *src, int w);
314
315 void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
316 void (*h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
317 void (*h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
318 void (*h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
319 void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
320 void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
321 // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
322 void (*h264_loop_filter_strength)(int16_t bS[2][4][4], uint8_t nnz[40], int8_t ref[2][40], int16_t mv[2][40][2],
323 int bidir, int edges, int step, int mask_mv0, int mask_mv1);
324
325 void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
326 void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
327
328 void (*h261_loop_filter)(uint8_t *src, int stride);
329
330 void (*x8_v_loop_filter)(uint8_t *src, int stride, int qscale);
331 void (*x8_h_loop_filter)(uint8_t *src, int stride, int qscale);
332
333 /* assume len is a multiple of 4, and arrays are 16-byte aligned */
334 void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
335 /* no alignment needed */
336 void (*flac_compute_autocorr)(const int32_t *data, int len, int lag, double *autoc);
337 /* assume len is a multiple of 8, and arrays are 16-byte aligned */
338 void (*vector_fmul)(float *dst, const float *src, int len);
339 void (*vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len);
340 /* assume len is a multiple of 8, and src arrays are 16-byte aligned */
341 void (*vector_fmul_add_add)(float *dst, const float *src0, const float *src1, const float *src2, int src3, int len, int step);
342
343 /* C version: convert floats from the range [384.0,386.0] to ints in [-32768,32767]
344 * simd versions: convert floats from [-32768.0,32767.0] without rescaling and arrays are 16byte aligned */
345 void (*float_to_int16)(int16_t *dst, const float *src, int len);
346
347 /* (I)DCT */
348 void (*fdct)(DCTELEM *block/* align 16*/);
349 void (*fdct248)(DCTELEM *block/* align 16*/);
350
351 /* IDCT really*/
352 void (*idct)(DCTELEM *block/* align 16*/);
353
354 /**
355 * block -> idct -> clip to unsigned 8 bit -> dest.
356 * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
357 * @param line_size size in bytes of a horizontal line of dest
358 */
359 void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
360
361 /**
362 * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
363 * @param line_size size in bytes of a horizontal line of dest
364 */
365 void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
366
367 /**
368 * idct input permutation.
369 * several optimized IDCTs need a permutated input (relative to the normal order of the reference
370 * IDCT)
371 * this permutation must be performed before the idct_put/add, note, normally this can be merged
372 * with the zigzag/alternate scan<br>
373 * an example to avoid confusion:
374 * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
375 * - (x -> referece dct -> reference idct -> x)
376 * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
377 * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
378 */
379 uint8_t idct_permutation[64];
380 int idct_permutation_type;
381 #define FF_NO_IDCT_PERM 1
382 #define FF_LIBMPEG2_IDCT_PERM 2
383 #define FF_SIMPLE_IDCT_PERM 3
384 #define FF_TRANSPOSE_IDCT_PERM 4
385 #define FF_PARTTRANS_IDCT_PERM 5
386
387 int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
388 void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
389 #define BASIS_SHIFT 16
390 #define RECON_SHIFT 6
391
392 /* h264 functions */
393 void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);
394 void (*h264_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
395 void (*h264_idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
396 void (*h264_idct8_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
397 void (*h264_dct)(DCTELEM block[4][4]);
398
399 /* snow wavelet */
400 void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
401 void (*horizontal_compose97i)(IDWTELEM *b, int width);
402 void (*inner_add_yblock)(const 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);
403
404 void (*prefetch)(void *mem, int stride, int h);
405
406 void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
407
408 /* vc1 functions */
409 void (*vc1_inv_trans_8x8)(DCTELEM *b);
410 void (*vc1_inv_trans_8x4)(uint8_t *dest, int line_size, DCTELEM *block);
411 void (*vc1_inv_trans_4x8)(uint8_t *dest, int line_size, DCTELEM *block);
412 void (*vc1_inv_trans_4x4)(uint8_t *dest, int line_size, DCTELEM *block);
413 void (*vc1_v_overlap)(uint8_t* src, int stride);
414 void (*vc1_h_overlap)(uint8_t* src, int stride);
415 /* put 8x8 block with bicubic interpolation and quarterpel precision
416 * last argument is actually round value instead of height
417 */
418 op_pixels_func put_vc1_mspel_pixels_tab[16];
419
420 /* intrax8 functions */
421 void (*x8_spatial_compensation[12])(uint8_t *src , uint8_t *dst, int linesize);
422 void (*x8_setup_spatial_compensation)(uint8_t *src, uint8_t *dst, int linesize,
423 int * range, int * sum, int edges);
424
425 } DSPContext;
426
427 void dsputil_static_init(void);
428 void dsputil_init(DSPContext* p, AVCodecContext *avctx);
429
430 int ff_check_alignment(void);
431
432 /**
433 * permute block according to permuatation.
434 * @param last last non zero element in scantable order
435 */
436 void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
437
438 void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
439
440 #define BYTE_VEC32(c) ((c)*0x01010101UL)
441
442 static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
443 {
444 return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
445 }
446
447 static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
448 {
449 return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
450 }
451
452 static inline int get_penalty_factor(int lambda, int lambda2, int type){
453 switch(type&0xFF){
454 default:
455 case FF_CMP_SAD:
456 return lambda>>FF_LAMBDA_SHIFT;
457 case FF_CMP_DCT:
458 return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
459 case FF_CMP_W53:
460 return (4*lambda)>>(FF_LAMBDA_SHIFT);
461 case FF_CMP_W97:
462 return (2*lambda)>>(FF_LAMBDA_SHIFT);
463 case FF_CMP_SATD:
464 case FF_CMP_DCT264:
465 return (2*lambda)>>FF_LAMBDA_SHIFT;
466 case FF_CMP_RD:
467 case FF_CMP_PSNR:
468 case FF_CMP_SSE:
469 case FF_CMP_NSSE:
470 return lambda2>>FF_LAMBDA_SHIFT;
471 case FF_CMP_BIT:
472 return 1;
473 }
474 }
475
476 /**
477 * Empty mmx state.
478 * this must be called between any dsp function and float/double code.
479 * for example sin(); dsp->idct_put(); emms_c(); cos()
480 */
481 #define emms_c()
482
483 /* should be defined by architectures supporting
484 one or more MultiMedia extension */
485 int mm_support(void);
486
487 void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
488 void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
489 void dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx);
490 void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
491 void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
492 void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
493 void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
494 void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
495 void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
496
497 #define DECLARE_ALIGNED_16(t, v) DECLARE_ALIGNED(16, t, v)
498
499 #if defined(HAVE_MMX)
500
501 #undef emms_c
502
503 #define MM_MMX 0x0001 /* standard MMX */
504 #define MM_3DNOW 0x0004 /* AMD 3DNOW */
505 #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
506 #define MM_SSE 0x0008 /* SSE functions */
507 #define MM_SSE2 0x0010 /* PIV SSE2 functions */
508 #define MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
509 #define MM_SSE3 0x0040 /* Prescott SSE3 functions */
510 #define MM_SSSE3 0x0080 /* Conroe SSSE3 functions */
511
512 extern int mm_flags;
513
514 void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
515 void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
516 void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
517
518 static inline void emms(void)
519 {
520 __asm __volatile ("emms;":::"memory");
521 }
522
523
524 #define emms_c() \
525 {\
526 if (mm_flags & MM_MMX)\
527 emms();\
528 }
529
530 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
531
532 #define STRIDE_ALIGN 8
533
534 void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
535
536 #elif defined(ARCH_ARMV4L)
537
538 /* This is to use 4 bytes read to the IDCT pointers for some 'zero'
539 line optimizations */
540 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(4, t, v)
541 #define STRIDE_ALIGN 4
542
543 #define MM_IWMMXT 0x0100 /* XScale IWMMXT */
544
545 extern int mm_flags;
546
547 #elif defined(HAVE_MLIB)
548
549 /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
550 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
551 #define STRIDE_ALIGN 8
552
553 #elif defined(HAVE_VIS)
554
555 /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
556 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
557 #define STRIDE_ALIGN 8
558
559 #elif defined(ARCH_ALPHA)
560
561 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
562 #define STRIDE_ALIGN 8
563
564 #elif defined(ARCH_POWERPC)
565
566 #define MM_ALTIVEC 0x0001 /* standard AltiVec */
567
568 extern int mm_flags;
569
570 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)
571 #define STRIDE_ALIGN 16
572
573 #elif defined(HAVE_MMI)
574
575 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)
576 #define STRIDE_ALIGN 16
577
578 #elif defined(ARCH_SH4)
579
580 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
581 #define STRIDE_ALIGN 8
582
583 #elif defined(ARCH_BFIN)
584
585 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
586 #define STRIDE_ALIGN 8
587
588 #else
589
590 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
591 #define STRIDE_ALIGN 8
592
593 #endif
594
595 /* PSNR */
596 void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
597 int orig_linesize[3], int coded_linesize,
598 AVCodecContext *avctx);
599
600 /* FFT computation */
601
602 /* NOTE: soon integer code will be added, so you must use the
603 FFTSample type */
604 typedef float FFTSample;
605
606 struct MDCTContext;
607
608 typedef struct FFTComplex {
609 FFTSample re, im;
610 } FFTComplex;
611
612 typedef struct FFTContext {
613 int nbits;
614 int inverse;
615 uint16_t *revtab;
616 FFTComplex *exptab;
617 FFTComplex *exptab1; /* only used by SSE code */
618 void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
619 void (*imdct_calc)(struct MDCTContext *s, FFTSample *output,
620 const FFTSample *input, FFTSample *tmp);
621 } FFTContext;
622
623 int ff_fft_init(FFTContext *s, int nbits, int inverse);
624 void ff_fft_permute(FFTContext *s, FFTComplex *z);
625 void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
626 void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
627 void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
628 void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
629 void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
630
631 static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
632 {
633 s->fft_calc(s, z);
634 }
635 void ff_fft_end(FFTContext *s);
636
637 /* MDCT computation */
638
639 typedef struct MDCTContext {
640 int n; /* size of MDCT (i.e. number of input data * 2) */
641 int nbits; /* n = 2^nbits */
642 /* pre/post rotation tables */
643 FFTSample *tcos;
644 FFTSample *tsin;
645 FFTContext fft;
646 } MDCTContext;
647
648 int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
649 void ff_imdct_calc(MDCTContext *s, FFTSample *output,
650 const FFTSample *input, FFTSample *tmp);
651 void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output,
652 const FFTSample *input, FFTSample *tmp);
653 void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output,
654 const FFTSample *input, FFTSample *tmp);
655 void ff_mdct_calc(MDCTContext *s, FFTSample *out,
656 const FFTSample *input, FFTSample *tmp);
657 void ff_mdct_end(MDCTContext *s);
658
659 #define WARPER8_16(name8, name16)\
660 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
661 return name8(s, dst , src , stride, h)\
662 +name8(s, dst+8 , src+8 , stride, h);\
663 }
664
665 #define WARPER8_16_SQ(name8, name16)\
666 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
667 int score=0;\
668 score +=name8(s, dst , src , stride, 8);\
669 score +=name8(s, dst+8 , src+8 , stride, 8);\
670 if(h==16){\
671 dst += 8*stride;\
672 src += 8*stride;\
673 score +=name8(s, dst , src , stride, 8);\
674 score +=name8(s, dst+8 , src+8 , stride, 8);\
675 }\
676 return score;\
677 }
678
679
680 static inline void copy_block2(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
681 {
682 int i;
683 for(i=0; i<h; i++)
684 {
685 AV_WN16(dst , AV_RN16(src ));
686 dst+=dstStride;
687 src+=srcStride;
688 }
689 }
690
691 static inline void copy_block4(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
692 {
693 int i;
694 for(i=0; i<h; i++)
695 {
696 AV_WN32(dst , AV_RN32(src ));
697 dst+=dstStride;
698 src+=srcStride;
699 }
700 }
701
702 static inline void copy_block8(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
703 {
704 int i;
705 for(i=0; i<h; i++)
706 {
707 AV_WN32(dst , AV_RN32(src ));
708 AV_WN32(dst+4 , AV_RN32(src+4 ));
709 dst+=dstStride;
710 src+=srcStride;
711 }
712 }
713
714 static inline void copy_block9(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
715 {
716 int i;
717 for(i=0; i<h; i++)
718 {
719 AV_WN32(dst , AV_RN32(src ));
720 AV_WN32(dst+4 , AV_RN32(src+4 ));
721 dst[8]= src[8];
722 dst+=dstStride;
723 src+=srcStride;
724 }
725 }
726
727 static inline void copy_block16(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
728 {
729 int i;
730 for(i=0; i<h; i++)
731 {
732 AV_WN32(dst , AV_RN32(src ));
733 AV_WN32(dst+4 , AV_RN32(src+4 ));
734 AV_WN32(dst+8 , AV_RN32(src+8 ));
735 AV_WN32(dst+12, AV_RN32(src+12));
736 dst+=dstStride;
737 src+=srcStride;
738 }
739 }
740
741 static inline void copy_block17(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
742 {
743 int i;
744 for(i=0; i<h; i++)
745 {
746 AV_WN32(dst , AV_RN32(src ));
747 AV_WN32(dst+4 , AV_RN32(src+4 ));
748 AV_WN32(dst+8 , AV_RN32(src+8 ));
749 AV_WN32(dst+12, AV_RN32(src+12));
750 dst[16]= src[16];
751 dst+=dstStride;
752 src+=srcStride;
753 }
754 }
755
756 #endif /* FFMPEG_DSPUTIL_H */