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 you notice errors in the align stuff, need more alignment for some ASM code
97 for some CPU or need to use a function with less aligned data then send a mail
98 to the ffmpeg-devel mailing list, ...
99
100 !warning These alignments might not match reality, (missing attribute((align))
101 stuff somewhere possible).
102 I (Michael) did not check them, these are just the alignments which I think
103 could be reached easily ...
104
105 !future video codecs might need functions with less strict alignment
106 */
107
108 /*
109 void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
110 void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
111 void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
112 void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
113 void clear_blocks_c(DCTELEM *blocks);
114 */
115
116 /* add and put pixel (decoding) */
117 // blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
118 //h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
119 typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
120 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);
121 typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
122 typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
123 typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
124 typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);
125
126 #define DEF_OLD_QPEL(name)\
127 void ff_put_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
128 void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
129 void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
130
131 DEF_OLD_QPEL(qpel16_mc11_old_c)
132 DEF_OLD_QPEL(qpel16_mc31_old_c)
133 DEF_OLD_QPEL(qpel16_mc12_old_c)
134 DEF_OLD_QPEL(qpel16_mc32_old_c)
135 DEF_OLD_QPEL(qpel16_mc13_old_c)
136 DEF_OLD_QPEL(qpel16_mc33_old_c)
137 DEF_OLD_QPEL(qpel8_mc11_old_c)
138 DEF_OLD_QPEL(qpel8_mc31_old_c)
139 DEF_OLD_QPEL(qpel8_mc12_old_c)
140 DEF_OLD_QPEL(qpel8_mc32_old_c)
141 DEF_OLD_QPEL(qpel8_mc13_old_c)
142 DEF_OLD_QPEL(qpel8_mc33_old_c)
143
144 #define CALL_2X_PIXELS(a, b, n)\
145 static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
146 b(block , pixels , line_size, h);\
147 b(block+n, pixels+n, line_size, h);\
148 }
149
150 /* motion estimation */
151 // h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
152 // although currently h<4 is not used as functions with width <8 are neither used nor implemented
153 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))*/;
154
155
156 // for snow slices
157 typedef struct slice_buffer_s slice_buffer;
158
159 /**
160 * Scantable.
161 */
162 typedef struct ScanTable{
163 const uint8_t *scantable;
164 uint8_t permutated[64];
165 uint8_t raster_end[64];
166 #ifdef ARCH_POWERPC
167 /** Used by dct_quantize_altivec to find last-non-zero */
168 DECLARE_ALIGNED(16, uint8_t, inverse[64]);
169 #endif
170 } ScanTable;
171
172 void ff_init_scantable(uint8_t *, ScanTable *st, const uint8_t *src_scantable);
173
174 void ff_emulated_edge_mc(uint8_t *buf, uint8_t *src, int linesize,
175 int block_w, int block_h,
176 int src_x, int src_y, int w, int h);
177
178 /**
179 * DSPContext.
180 */
181 typedef struct DSPContext {
182 /* pixel ops : interface with DCT */
183 void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
184 void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
185 void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
186 void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
187 void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
188 void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);
189 void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);
190 int (*sum_abs_dctelem)(DCTELEM *block/*align 16*/);
191 /**
192 * translational global motion compensation.
193 */
194 void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
195 /**
196 * global motion compensation.
197 */
198 void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
199 int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
200 void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
201 int (*pix_sum)(uint8_t * pix, int line_size);
202 int (*pix_norm1)(uint8_t * pix, int line_size);
203 // 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
204
205 me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */
206 me_cmp_func sse[5];
207 me_cmp_func hadamard8_diff[5];
208 me_cmp_func dct_sad[5];
209 me_cmp_func quant_psnr[5];
210 me_cmp_func bit[5];
211 me_cmp_func rd[5];
212 me_cmp_func vsad[5];
213 me_cmp_func vsse[5];
214 me_cmp_func nsse[5];
215 me_cmp_func w53[5];
216 me_cmp_func w97[5];
217 me_cmp_func dct_max[5];
218 me_cmp_func dct264_sad[5];
219
220 me_cmp_func me_pre_cmp[5];
221 me_cmp_func me_cmp[5];
222 me_cmp_func me_sub_cmp[5];
223 me_cmp_func mb_cmp[5];
224 me_cmp_func ildct_cmp[5]; //only width 16 used
225 me_cmp_func frame_skip_cmp[5]; //only width 8 used
226
227 int (*ssd_int8_vs_int16)(const int8_t *pix1, const int16_t *pix2,
228 int size);
229
230 /**
231 * Halfpel motion compensation with rounding (a+b+1)>>1.
232 * this is an array[4][4] of motion compensation functions for 4
233 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
234 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
235 * @param block destination where the result is stored
236 * @param pixels source
237 * @param line_size number of bytes in a horizontal line of block
238 * @param h height
239 */
240 op_pixels_func put_pixels_tab[4][4];
241
242 /**
243 * Halfpel motion compensation with rounding (a+b+1)>>1.
244 * This is an array[4][4] of motion compensation functions for 4
245 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
246 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
247 * @param block destination into which the result is averaged (a+b+1)>>1
248 * @param pixels source
249 * @param line_size number of bytes in a horizontal line of block
250 * @param h height
251 */
252 op_pixels_func avg_pixels_tab[4][4];
253
254 /**
255 * Halfpel motion compensation with no rounding (a+b)>>1.
256 * this is an array[2][4] of motion compensation functions for 2
257 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
258 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
259 * @param block destination where the result is stored
260 * @param pixels source
261 * @param line_size number of bytes in a horizontal line of block
262 * @param h height
263 */
264 op_pixels_func put_no_rnd_pixels_tab[4][4];
265
266 /**
267 * Halfpel motion compensation with no rounding (a+b)>>1.
268 * this is an array[2][4] of motion compensation functions for 2
269 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
270 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
271 * @param block destination into which the result is averaged (a+b)>>1
272 * @param pixels source
273 * @param line_size number of bytes in a horizontal line of block
274 * @param h height
275 */
276 op_pixels_func avg_no_rnd_pixels_tab[4][4];
277
278 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);
279
280 /**
281 * Thirdpel motion compensation with rounding (a+b+1)>>1.
282 * this is an array[12] of motion compensation functions for the 9 thirdpe
283 * positions<br>
284 * *pixels_tab[ xthirdpel + 4*ythirdpel ]
285 * @param block destination where the result is stored
286 * @param pixels source
287 * @param line_size number of bytes in a horizontal line of block
288 * @param h height
289 */
290 tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
291 tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
292
293 qpel_mc_func put_qpel_pixels_tab[2][16];
294 qpel_mc_func avg_qpel_pixels_tab[2][16];
295 qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
296 qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
297 qpel_mc_func put_mspel_pixels_tab[8];
298
299 /**
300 * h264 Chroma MC
301 */
302 h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
303 /* This is really one func used in VC-1 decoding */
304 h264_chroma_mc_func put_no_rnd_h264_chroma_pixels_tab[3];
305 h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
306
307 qpel_mc_func put_h264_qpel_pixels_tab[4][16];
308 qpel_mc_func avg_h264_qpel_pixels_tab[4][16];
309
310 qpel_mc_func put_2tap_qpel_pixels_tab[4][16];
311 qpel_mc_func avg_2tap_qpel_pixels_tab[4][16];
312
313 h264_weight_func weight_h264_pixels_tab[10];
314 h264_biweight_func biweight_h264_pixels_tab[10];
315
316 /* AVS specific */
317 qpel_mc_func put_cavs_qpel_pixels_tab[2][16];
318 qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];
319 void (*cavs_filter_lv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
320 void (*cavs_filter_lh)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
321 void (*cavs_filter_cv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
322 void (*cavs_filter_ch)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
323 void (*cavs_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
324
325 me_cmp_func pix_abs[2][4];
326
327 /* huffyuv specific */
328 void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
329 void (*add_bytes_l2)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 16*/, int w);
330 void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
331 /**
332 * subtract huffyuv's variant of median prediction
333 * note, this might read from src1[-1], src2[-1]
334 */
335 void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
336 /* this might write to dst[w] */
337 void (*add_png_paeth_prediction)(uint8_t *dst, uint8_t *src, uint8_t *top, int w, int bpp);
338 void (*bswap_buf)(uint32_t *dst, const uint32_t *src, int w);
339
340 void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
341 void (*h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
342 void (*h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
343 void (*h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
344 void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
345 void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
346 // h264_loop_filter_strength: simd only. the C version is inlined in h264.c
347 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],
348 int bidir, int edges, int step, int mask_mv0, int mask_mv1);
349
350 void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
351 void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
352
353 void (*h261_loop_filter)(uint8_t *src, int stride);
354
355 void (*x8_v_loop_filter)(uint8_t *src, int stride, int qscale);
356 void (*x8_h_loop_filter)(uint8_t *src, int stride, int qscale);
357
358 /* assume len is a multiple of 4, and arrays are 16-byte aligned */
359 void (*vorbis_inverse_coupling)(float *mag, float *ang, int blocksize);
360 /* no alignment needed */
361 void (*flac_compute_autocorr)(const int32_t *data, int len, int lag, double *autoc);
362 /* assume len is a multiple of 8, and arrays are 16-byte aligned */
363 void (*vector_fmul)(float *dst, const float *src, int len);
364 void (*vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len);
365 /* assume len is a multiple of 8, and src arrays are 16-byte aligned */
366 void (*vector_fmul_add_add)(float *dst, const float *src0, const float *src1, const float *src2, int src3, int len, int step);
367
368 /* C version: convert floats from the range [384.0,386.0] to ints in [-32768,32767]
369 * simd versions: convert floats from [-32768.0,32767.0] without rescaling and arrays are 16byte aligned */
370 void (*float_to_int16)(int16_t *dst, const float *src, int len);
371
372 /* (I)DCT */
373 void (*fdct)(DCTELEM *block/* align 16*/);
374 void (*fdct248)(DCTELEM *block/* align 16*/);
375
376 /* IDCT really*/
377 void (*idct)(DCTELEM *block/* align 16*/);
378
379 /**
380 * block -> idct -> clip to unsigned 8 bit -> dest.
381 * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
382 * @param line_size size in bytes of a horizontal line of dest
383 */
384 void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
385
386 /**
387 * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
388 * @param line_size size in bytes of a horizontal line of dest
389 */
390 void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
391
392 /**
393 * idct input permutation.
394 * several optimized IDCTs need a permutated input (relative to the normal order of the reference
395 * IDCT)
396 * this permutation must be performed before the idct_put/add, note, normally this can be merged
397 * with the zigzag/alternate scan<br>
398 * an example to avoid confusion:
399 * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
400 * - (x -> referece dct -> reference idct -> x)
401 * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
402 * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
403 */
404 uint8_t idct_permutation[64];
405 int idct_permutation_type;
406 #define FF_NO_IDCT_PERM 1
407 #define FF_LIBMPEG2_IDCT_PERM 2
408 #define FF_SIMPLE_IDCT_PERM 3
409 #define FF_TRANSPOSE_IDCT_PERM 4
410 #define FF_PARTTRANS_IDCT_PERM 5
411 #define FF_SSE2_IDCT_PERM 6
412
413 int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
414 void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
415 #define BASIS_SHIFT 16
416 #define RECON_SHIFT 6
417
418 void (*draw_edges)(uint8_t *buf, int wrap, int width, int height, int w);
419 #define EDGE_WIDTH 16
420
421 /* h264 functions */
422 void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);
423 void (*h264_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
424 void (*h264_idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
425 void (*h264_idct8_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
426 void (*h264_dct)(DCTELEM block[4][4]);
427
428 /* snow wavelet */
429 void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
430 void (*horizontal_compose97i)(IDWTELEM *b, int width);
431 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);
432
433 void (*prefetch)(void *mem, int stride, int h);
434
435 void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
436
437 /* vc1 functions */
438 void (*vc1_inv_trans_8x8)(DCTELEM *b);
439 void (*vc1_inv_trans_8x4)(uint8_t *dest, int line_size, DCTELEM *block);
440 void (*vc1_inv_trans_4x8)(uint8_t *dest, int line_size, DCTELEM *block);
441 void (*vc1_inv_trans_4x4)(uint8_t *dest, int line_size, DCTELEM *block);
442 void (*vc1_v_overlap)(uint8_t* src, int stride);
443 void (*vc1_h_overlap)(uint8_t* src, int stride);
444 /* put 8x8 block with bicubic interpolation and quarterpel precision
445 * last argument is actually round value instead of height
446 */
447 op_pixels_func put_vc1_mspel_pixels_tab[16];
448
449 /* intrax8 functions */
450 void (*x8_spatial_compensation[12])(uint8_t *src , uint8_t *dst, int linesize);
451 void (*x8_setup_spatial_compensation)(uint8_t *src, uint8_t *dst, int linesize,
452 int * range, int * sum, int edges);
453
454 } DSPContext;
455
456 void dsputil_static_init(void);
457 void dsputil_init(DSPContext* p, AVCodecContext *avctx);
458
459 int ff_check_alignment(void);
460
461 /**
462 * permute block according to permuatation.
463 * @param last last non zero element in scantable order
464 */
465 void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
466
467 void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
468
469 #define BYTE_VEC32(c) ((c)*0x01010101UL)
470
rnd_avg32(uint32_t a,uint32_t b)471 static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
472 {
473 return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
474 }
475
no_rnd_avg32(uint32_t a,uint32_t b)476 static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
477 {
478 return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
479 }
480
get_penalty_factor(int lambda,int lambda2,int type)481 static inline int get_penalty_factor(int lambda, int lambda2, int type){
482 switch(type&0xFF){
483 default:
484 case FF_CMP_SAD:
485 return lambda>>FF_LAMBDA_SHIFT;
486 case FF_CMP_DCT:
487 return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
488 case FF_CMP_W53:
489 return (4*lambda)>>(FF_LAMBDA_SHIFT);
490 case FF_CMP_W97:
491 return (2*lambda)>>(FF_LAMBDA_SHIFT);
492 case FF_CMP_SATD:
493 case FF_CMP_DCT264:
494 return (2*lambda)>>FF_LAMBDA_SHIFT;
495 case FF_CMP_RD:
496 case FF_CMP_PSNR:
497 case FF_CMP_SSE:
498 case FF_CMP_NSSE:
499 return lambda2>>FF_LAMBDA_SHIFT;
500 case FF_CMP_BIT:
501 return 1;
502 }
503 }
504
505 /**
506 * Empty mmx state.
507 * this must be called between any dsp function and float/double code.
508 * for example sin(); dsp->idct_put(); emms_c(); cos()
509 */
510 #define emms_c()
511
512 /* should be defined by architectures supporting
513 one or more MultiMedia extension */
514 int mm_support(void);
515
516 void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
517 void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
518 void dsputil_init_bfin(DSPContext* c, AVCodecContext *avctx);
519 void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
520 void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
521 void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
522 void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
523 void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
524 void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
525
526 #define DECLARE_ALIGNED_16(t, v) DECLARE_ALIGNED(16, t, v)
527
528 #if defined(HAVE_MMX)
529
530 #undef emms_c
531
532 #define MM_MMX 0x0001 /* standard MMX */
533 #define MM_3DNOW 0x0004 /* AMD 3DNOW */
534 #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
535 #define MM_SSE 0x0008 /* SSE functions */
536 #define MM_SSE2 0x0010 /* PIV SSE2 functions */
537 #define MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
538 #define MM_SSE3 0x0040 /* Prescott SSE3 functions */
539 #define MM_SSSE3 0x0080 /* Conroe SSSE3 functions */
540
541 extern int mm_flags;
542
543 void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
544 void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
545 void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
546
emms(void)547 static inline void emms(void)
548 {
549 asm volatile ("emms;":::"memory");
550 }
551
552
553 #define emms_c() \
554 {\
555 if (mm_flags & MM_MMX)\
556 emms();\
557 }
558
559 void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
560
561 #elif defined(ARCH_ARMV4L)
562
563 #define MM_IWMMXT 0x0100 /* XScale IWMMXT */
564
565 extern int mm_flags;
566
567 #elif defined(ARCH_POWERPC)
568
569 #define MM_ALTIVEC 0x0001 /* standard AltiVec */
570
571 extern int mm_flags;
572
573 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)
574 #define STRIDE_ALIGN 16
575
576 #elif defined(HAVE_MMI)
577
578 #define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(16, t, v)
579 #define STRIDE_ALIGN 16
580
581 #endif
582
583 #ifndef DECLARE_ALIGNED_8
584 # define DECLARE_ALIGNED_8(t, v) DECLARE_ALIGNED(8, t, v)
585 #endif
586
587 #ifndef STRIDE_ALIGN
588 # define STRIDE_ALIGN 8
589 #endif
590
591 /* PSNR */
592 void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
593 int orig_linesize[3], int coded_linesize,
594 AVCodecContext *avctx);
595
596 /* FFT computation */
597
598 /* NOTE: soon integer code will be added, so you must use the
599 FFTSample type */
600 typedef float FFTSample;
601
602 struct MDCTContext;
603
604 typedef struct FFTComplex {
605 FFTSample re, im;
606 } FFTComplex;
607
608 typedef struct FFTContext {
609 int nbits;
610 int inverse;
611 uint16_t *revtab;
612 FFTComplex *exptab;
613 FFTComplex *exptab1; /* only used by SSE code */
614 void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
615 void (*imdct_calc)(struct MDCTContext *s, FFTSample *output,
616 const FFTSample *input, FFTSample *tmp);
617 } FFTContext;
618
619 int ff_fft_init(FFTContext *s, int nbits, int inverse);
620 void ff_fft_permute(FFTContext *s, FFTComplex *z);
621 void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
622 void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
623 void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
624 void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
625 void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
626
ff_fft_calc(FFTContext * s,FFTComplex * z)627 static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
628 {
629 s->fft_calc(s, z);
630 }
631 void ff_fft_end(FFTContext *s);
632
633 /* MDCT computation */
634
635 typedef struct MDCTContext {
636 int n; /* size of MDCT (i.e. number of input data * 2) */
637 int nbits; /* n = 2^nbits */
638 /* pre/post rotation tables */
639 FFTSample *tcos;
640 FFTSample *tsin;
641 FFTContext fft;
642 } MDCTContext;
643
644 /**
645 * Generate a Kaiser-Bessel Derived Window.
646 * @param window pointer to half window
647 * @param alpha determines window shape
648 * @param n size of half window
649 */
650 void ff_kbd_window_init(float *window, float alpha, int n);
651
652 int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
653 void ff_imdct_calc(MDCTContext *s, FFTSample *output,
654 const FFTSample *input, FFTSample *tmp);
655 void ff_imdct_calc_3dn2(MDCTContext *s, FFTSample *output,
656 const FFTSample *input, FFTSample *tmp);
657 void ff_imdct_calc_sse(MDCTContext *s, FFTSample *output,
658 const FFTSample *input, FFTSample *tmp);
659 void ff_mdct_calc(MDCTContext *s, FFTSample *out,
660 const FFTSample *input, FFTSample *tmp);
661 void ff_mdct_end(MDCTContext *s);
662
663 #define WRAPPER8_16(name8, name16)\
664 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
665 return name8(s, dst , src , stride, h)\
666 +name8(s, dst+8 , src+8 , stride, h);\
667 }
668
669 #define WRAPPER8_16_SQ(name8, name16)\
670 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
671 int score=0;\
672 score +=name8(s, dst , src , stride, 8);\
673 score +=name8(s, dst+8 , src+8 , stride, 8);\
674 if(h==16){\
675 dst += 8*stride;\
676 src += 8*stride;\
677 score +=name8(s, dst , src , stride, 8);\
678 score +=name8(s, dst+8 , src+8 , stride, 8);\
679 }\
680 return score;\
681 }
682
683
copy_block2(uint8_t * dst,uint8_t * src,int dstStride,int srcStride,int h)684 static inline void copy_block2(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
685 {
686 int i;
687 for(i=0; i<h; i++)
688 {
689 AV_WN16(dst , AV_RN16(src ));
690 dst+=dstStride;
691 src+=srcStride;
692 }
693 }
694
copy_block4(uint8_t * dst,uint8_t * src,int dstStride,int srcStride,int h)695 static inline void copy_block4(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
696 {
697 int i;
698 for(i=0; i<h; i++)
699 {
700 AV_WN32(dst , AV_RN32(src ));
701 dst+=dstStride;
702 src+=srcStride;
703 }
704 }
705
copy_block8(uint8_t * dst,uint8_t * src,int dstStride,int srcStride,int h)706 static inline void copy_block8(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
707 {
708 int i;
709 for(i=0; i<h; i++)
710 {
711 AV_WN32(dst , AV_RN32(src ));
712 AV_WN32(dst+4 , AV_RN32(src+4 ));
713 dst+=dstStride;
714 src+=srcStride;
715 }
716 }
717
copy_block9(uint8_t * dst,uint8_t * src,int dstStride,int srcStride,int h)718 static inline void copy_block9(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
719 {
720 int i;
721 for(i=0; i<h; i++)
722 {
723 AV_WN32(dst , AV_RN32(src ));
724 AV_WN32(dst+4 , AV_RN32(src+4 ));
725 dst[8]= src[8];
726 dst+=dstStride;
727 src+=srcStride;
728 }
729 }
730
copy_block16(uint8_t * dst,uint8_t * src,int dstStride,int srcStride,int h)731 static inline void copy_block16(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
732 {
733 int i;
734 for(i=0; i<h; i++)
735 {
736 AV_WN32(dst , AV_RN32(src ));
737 AV_WN32(dst+4 , AV_RN32(src+4 ));
738 AV_WN32(dst+8 , AV_RN32(src+8 ));
739 AV_WN32(dst+12, AV_RN32(src+12));
740 dst+=dstStride;
741 src+=srcStride;
742 }
743 }
744
copy_block17(uint8_t * dst,uint8_t * src,int dstStride,int srcStride,int h)745 static inline void copy_block17(uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int h)
746 {
747 int i;
748 for(i=0; i<h; i++)
749 {
750 AV_WN32(dst , AV_RN32(src ));
751 AV_WN32(dst+4 , AV_RN32(src+4 ));
752 AV_WN32(dst+8 , AV_RN32(src+8 ));
753 AV_WN32(dst+12, AV_RN32(src+12));
754 dst[16]= src[16];
755 dst+=dstStride;
756 src+=srcStride;
757 }
758 }
759
760 #endif /* FFMPEG_DSPUTIL_H */
761