CAVS decoder by (Stefan Gehrer stefan.gehrer gmx.de)
[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 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 /* 1/2^n downscaling functions from imgconvert.c */
80 void ff_img_copy_plane(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
81 void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
82 void ff_shrink44(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
83 void ff_shrink88(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
84
85 void ff_gmc_c(uint8_t *dst, uint8_t *src, int stride, int h, int ox, int oy,
86 int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
87
88 /* minimum alignment rules ;)
89 if u notice errors in the align stuff, need more alignment for some asm code for some cpu
90 or need to use a function with less aligned data then send a mail to the ffmpeg-dev list, ...
91
92 !warning these alignments might not match reallity, (missing attribute((align)) stuff somewhere possible)
93 i (michael) didnt check them, these are just the alignents which i think could be reached easily ...
94
95 !future video codecs might need functions with less strict alignment
96 */
97
98 /*
99 void get_pixels_c(DCTELEM *block, const uint8_t *pixels, int line_size);
100 void diff_pixels_c(DCTELEM *block, const uint8_t *s1, const uint8_t *s2, int stride);
101 void put_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
102 void add_pixels_clamped_c(const DCTELEM *block, uint8_t *pixels, int line_size);
103 void clear_blocks_c(DCTELEM *blocks);
104 */
105
106 /* add and put pixel (decoding) */
107 // blocksizes for op_pixels_func are 8x4,8x8 16x8 16x16
108 //h for op_pixels_func is limited to {width/2, width} but never larger than 16 and never smaller then 4
109 typedef void (*op_pixels_func)(uint8_t *block/*align width (8 or 16)*/, const uint8_t *pixels/*align 1*/, int line_size, int h);
110 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);
111 typedef void (*qpel_mc_func)(uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
112 typedef void (*h264_chroma_mc_func)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x, int y);
113 typedef void (*h264_weight_func)(uint8_t *block, int stride, int log2_denom, int weight, int offset);
114 typedef void (*h264_biweight_func)(uint8_t *dst, uint8_t *src, int stride, int log2_denom, int weightd, int weights, int offset);
115
116 #define DEF_OLD_QPEL(name)\
117 void ff_put_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
118 void ff_put_no_rnd_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);\
119 void ff_avg_ ## name (uint8_t *dst/*align width (8 or 16)*/, uint8_t *src/*align 1*/, int stride);
120
121 DEF_OLD_QPEL(qpel16_mc11_old_c)
122 DEF_OLD_QPEL(qpel16_mc31_old_c)
123 DEF_OLD_QPEL(qpel16_mc12_old_c)
124 DEF_OLD_QPEL(qpel16_mc32_old_c)
125 DEF_OLD_QPEL(qpel16_mc13_old_c)
126 DEF_OLD_QPEL(qpel16_mc33_old_c)
127 DEF_OLD_QPEL(qpel8_mc11_old_c)
128 DEF_OLD_QPEL(qpel8_mc31_old_c)
129 DEF_OLD_QPEL(qpel8_mc12_old_c)
130 DEF_OLD_QPEL(qpel8_mc32_old_c)
131 DEF_OLD_QPEL(qpel8_mc13_old_c)
132 DEF_OLD_QPEL(qpel8_mc33_old_c)
133
134 #define CALL_2X_PIXELS(a, b, n)\
135 static void a(uint8_t *block, const uint8_t *pixels, int line_size, int h){\
136 b(block , pixels , line_size, h);\
137 b(block+n, pixels+n, line_size, h);\
138 }
139
140 /* motion estimation */
141 // h is limited to {width/2, width, 2*width} but never larger than 16 and never smaller then 2
142 // allthough currently h<4 is not used as functions with width <8 are not used and neither implemented
143 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))*/;
144
145
146 // for snow slices
147 typedef struct slice_buffer_s slice_buffer;
148
149 /**
150 * DSPContext.
151 */
152 typedef struct DSPContext {
153 /* pixel ops : interface with DCT */
154 void (*get_pixels)(DCTELEM *block/*align 16*/, const uint8_t *pixels/*align 8*/, int line_size);
155 void (*diff_pixels)(DCTELEM *block/*align 16*/, const uint8_t *s1/*align 8*/, const uint8_t *s2/*align 8*/, int stride);
156 void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
157 void (*put_signed_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
158 void (*add_pixels_clamped)(const DCTELEM *block/*align 16*/, uint8_t *pixels/*align 8*/, int line_size);
159 void (*add_pixels8)(uint8_t *pixels, DCTELEM *block, int line_size);
160 void (*add_pixels4)(uint8_t *pixels, DCTELEM *block, int line_size);
161 /**
162 * translational global motion compensation.
163 */
164 void (*gmc1)(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int srcStride, int h, int x16, int y16, int rounder);
165 /**
166 * global motion compensation.
167 */
168 void (*gmc )(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int ox, int oy,
169 int dxx, int dxy, int dyx, int dyy, int shift, int r, int width, int height);
170 void (*clear_blocks)(DCTELEM *blocks/*align 16*/);
171 int (*pix_sum)(uint8_t * pix, int line_size);
172 int (*pix_norm1)(uint8_t * pix, int line_size);
173 // 16x16 8x8 4x4 2x2 16x8 8x4 4x2 8x16 4x8 2x4
174
175 me_cmp_func sad[5]; /* identical to pix_absAxA except additional void * */
176 me_cmp_func sse[5];
177 me_cmp_func hadamard8_diff[5];
178 me_cmp_func dct_sad[5];
179 me_cmp_func quant_psnr[5];
180 me_cmp_func bit[5];
181 me_cmp_func rd[5];
182 me_cmp_func vsad[5];
183 me_cmp_func vsse[5];
184 me_cmp_func nsse[5];
185 me_cmp_func w53[5];
186 me_cmp_func w97[5];
187 me_cmp_func dct_max[5];
188 me_cmp_func dct264_sad[5];
189
190 me_cmp_func me_pre_cmp[5];
191 me_cmp_func me_cmp[5];
192 me_cmp_func me_sub_cmp[5];
193 me_cmp_func mb_cmp[5];
194 me_cmp_func ildct_cmp[5]; //only width 16 used
195 me_cmp_func frame_skip_cmp[5]; //only width 8 used
196
197 /**
198 * Halfpel motion compensation with rounding (a+b+1)>>1.
199 * this is an array[4][4] of motion compensation funcions for 4
200 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
201 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
202 * @param block destination where the result is stored
203 * @param pixels source
204 * @param line_size number of bytes in a horizontal line of block
205 * @param h height
206 */
207 op_pixels_func put_pixels_tab[4][4];
208
209 /**
210 * Halfpel motion compensation with rounding (a+b+1)>>1.
211 * This is an array[4][4] of motion compensation functions for 4
212 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
213 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
214 * @param block destination into which the result is averaged (a+b+1)>>1
215 * @param pixels source
216 * @param line_size number of bytes in a horizontal line of block
217 * @param h height
218 */
219 op_pixels_func avg_pixels_tab[4][4];
220
221 /**
222 * Halfpel motion compensation with no rounding (a+b)>>1.
223 * this is an array[2][4] of motion compensation funcions for 2
224 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
225 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
226 * @param block destination where the result is stored
227 * @param pixels source
228 * @param line_size number of bytes in a horizontal line of block
229 * @param h height
230 */
231 op_pixels_func put_no_rnd_pixels_tab[4][4];
232
233 /**
234 * Halfpel motion compensation with no rounding (a+b)>>1.
235 * this is an array[2][4] of motion compensation funcions for 2
236 * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
237 * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
238 * @param block destination into which the result is averaged (a+b)>>1
239 * @param pixels source
240 * @param line_size number of bytes in a horizontal line of block
241 * @param h height
242 */
243 op_pixels_func avg_no_rnd_pixels_tab[4][4];
244
245 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);
246
247 /**
248 * Thirdpel motion compensation with rounding (a+b+1)>>1.
249 * this is an array[12] of motion compensation funcions for the 9 thirdpel positions<br>
250 * *pixels_tab[ xthirdpel + 4*ythirdpel ]
251 * @param block destination where the result is stored
252 * @param pixels source
253 * @param line_size number of bytes in a horizontal line of block
254 * @param h height
255 */
256 tpel_mc_func put_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
257 tpel_mc_func avg_tpel_pixels_tab[11]; //FIXME individual func ptr per width?
258
259 qpel_mc_func put_qpel_pixels_tab[2][16];
260 qpel_mc_func avg_qpel_pixels_tab[2][16];
261 qpel_mc_func put_no_rnd_qpel_pixels_tab[2][16];
262 qpel_mc_func avg_no_rnd_qpel_pixels_tab[2][16];
263 qpel_mc_func put_mspel_pixels_tab[8];
264
265 /**
266 * h264 Chram MC
267 */
268 h264_chroma_mc_func put_h264_chroma_pixels_tab[3];
269 h264_chroma_mc_func avg_h264_chroma_pixels_tab[3];
270
271 qpel_mc_func put_h264_qpel_pixels_tab[4][16];
272 qpel_mc_func avg_h264_qpel_pixels_tab[4][16];
273
274 h264_weight_func weight_h264_pixels_tab[10];
275 h264_biweight_func biweight_h264_pixels_tab[10];
276
277 /* AVS specific */
278 qpel_mc_func put_cavs_qpel_pixels_tab[2][16];
279 qpel_mc_func avg_cavs_qpel_pixels_tab[2][16];
280 void (*cavs_filter_lv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
281 void (*cavs_filter_lh)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
282 void (*cavs_filter_cv)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
283 void (*cavs_filter_ch)(uint8_t *pix, int stride, int alpha, int beta, int tc, int bs1, int bs2);
284 void (*cavs_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
285
286 me_cmp_func pix_abs[2][4];
287
288 /* huffyuv specific */
289 void (*add_bytes)(uint8_t *dst/*align 16*/, uint8_t *src/*align 16*/, int w);
290 void (*diff_bytes)(uint8_t *dst/*align 16*/, uint8_t *src1/*align 16*/, uint8_t *src2/*align 1*/,int w);
291 /**
292 * subtract huffyuv's variant of median prediction
293 * note, this might read from src1[-1], src2[-1]
294 */
295 void (*sub_hfyu_median_prediction)(uint8_t *dst, uint8_t *src1, uint8_t *src2, int w, int *left, int *left_top);
296 void (*bswap_buf)(uint32_t *dst, uint32_t *src, int w);
297
298 void (*h264_v_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
299 void (*h264_h_loop_filter_luma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
300 void (*h264_v_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
301 void (*h264_h_loop_filter_chroma)(uint8_t *pix, int stride, int alpha, int beta, int8_t *tc0);
302 void (*h264_v_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
303 void (*h264_h_loop_filter_chroma_intra)(uint8_t *pix, int stride, int alpha, int beta);
304
305 void (*h263_v_loop_filter)(uint8_t *src, int stride, int qscale);
306 void (*h263_h_loop_filter)(uint8_t *src, int stride, int qscale);
307
308 void (*h261_loop_filter)(uint8_t *src, int stride);
309
310 /* (I)DCT */
311 void (*fdct)(DCTELEM *block/* align 16*/);
312 void (*fdct248)(DCTELEM *block/* align 16*/);
313
314 /* IDCT really*/
315 void (*idct)(DCTELEM *block/* align 16*/);
316
317 /**
318 * block -> idct -> clip to unsigned 8 bit -> dest.
319 * (-1392, 0, 0, ...) -> idct -> (-174, -174, ...) -> put -> (0, 0, ...)
320 * @param line_size size in bytes of a horizotal line of dest
321 */
322 void (*idct_put)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
323
324 /**
325 * block -> idct -> add dest -> clip to unsigned 8 bit -> dest.
326 * @param line_size size in bytes of a horizotal line of dest
327 */
328 void (*idct_add)(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/);
329
330 /**
331 * idct input permutation.
332 * several optimized IDCTs need a permutated input (relative to the normal order of the reference
333 * IDCT)
334 * this permutation must be performed before the idct_put/add, note, normally this can be merged
335 * with the zigzag/alternate scan<br>
336 * an example to avoid confusion:
337 * - (->decode coeffs -> zigzag reorder -> dequant -> reference idct ->...)
338 * - (x -> referece dct -> reference idct -> x)
339 * - (x -> referece dct -> simple_mmx_perm = idct_permutation -> simple_idct_mmx -> x)
340 * - (->decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant -> simple_idct_mmx ->...)
341 */
342 uint8_t idct_permutation[64];
343 int idct_permutation_type;
344 #define FF_NO_IDCT_PERM 1
345 #define FF_LIBMPEG2_IDCT_PERM 2
346 #define FF_SIMPLE_IDCT_PERM 3
347 #define FF_TRANSPOSE_IDCT_PERM 4
348 #define FF_PARTTRANS_IDCT_PERM 5
349
350 int (*try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale);
351 void (*add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale);
352 #define BASIS_SHIFT 16
353 #define RECON_SHIFT 6
354
355 void (*h264_idct_add)(uint8_t *dst, DCTELEM *block, int stride);
356 void (*h264_idct8_add)(uint8_t *dst, DCTELEM *block, int stride);
357 void (*h264_idct_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
358 void (*h264_idct8_dc_add)(uint8_t *dst, DCTELEM *block, int stride);
359
360 /* snow wavelet */
361 void (*vertical_compose97i)(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, DWTELEM *b3, DWTELEM *b4, DWTELEM *b5, int width);
362 void (*horizontal_compose97i)(DWTELEM *b, int width);
363 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);
364
365 void (*prefetch)(void *mem, int stride, int h);
366
367 void (*shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height);
368 } DSPContext;
369
370 void dsputil_static_init(void);
371 void dsputil_init(DSPContext* p, AVCodecContext *avctx);
372
373 /**
374 * permute block according to permuatation.
375 * @param last last non zero element in scantable order
376 */
377 void ff_block_permute(DCTELEM *block, uint8_t *permutation, const uint8_t *scantable, int last);
378
379 void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type);
380
381 #define BYTE_VEC32(c) ((c)*0x01010101UL)
382
383 static inline uint32_t rnd_avg32(uint32_t a, uint32_t b)
384 {
385 return (a | b) - (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
386 }
387
388 static inline uint32_t no_rnd_avg32(uint32_t a, uint32_t b)
389 {
390 return (a & b) + (((a ^ b) & ~BYTE_VEC32(0x01)) >> 1);
391 }
392
393 static inline int get_penalty_factor(int lambda, int lambda2, int type){
394 switch(type&0xFF){
395 default:
396 case FF_CMP_SAD:
397 return lambda>>FF_LAMBDA_SHIFT;
398 case FF_CMP_DCT:
399 return (3*lambda)>>(FF_LAMBDA_SHIFT+1);
400 case FF_CMP_W53:
401 return (4*lambda)>>(FF_LAMBDA_SHIFT);
402 case FF_CMP_W97:
403 return (2*lambda)>>(FF_LAMBDA_SHIFT);
404 case FF_CMP_SATD:
405 case FF_CMP_DCT264:
406 return (2*lambda)>>FF_LAMBDA_SHIFT;
407 case FF_CMP_RD:
408 case FF_CMP_PSNR:
409 case FF_CMP_SSE:
410 case FF_CMP_NSSE:
411 return lambda2>>FF_LAMBDA_SHIFT;
412 case FF_CMP_BIT:
413 return 1;
414 }
415 }
416
417 /**
418 * Empty mmx state.
419 * this must be called between any dsp function and float/double code.
420 * for example sin(); dsp->idct_put(); emms_c(); cos()
421 */
422 #define emms_c()
423
424 /* should be defined by architectures supporting
425 one or more MultiMedia extension */
426 int mm_support(void);
427
428 #ifdef __GNUC__
429 #define DECLARE_ALIGNED_16(t,v) t v __attribute__ ((aligned (16)))
430 #else
431 #define DECLARE_ALIGNED_16(t,v) __declspec(align(16)) t v
432 #endif
433
434 #if defined(HAVE_MMX)
435
436 #undef emms_c
437
438 #define MM_MMX 0x0001 /* standard MMX */
439 #define MM_3DNOW 0x0004 /* AMD 3DNOW */
440 #define MM_MMXEXT 0x0002 /* SSE integer functions or AMD MMX ext */
441 #define MM_SSE 0x0008 /* SSE functions */
442 #define MM_SSE2 0x0010 /* PIV SSE2 functions */
443 #define MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
444 #define MM_SSE3 0x0040 /* Prescott SSE3 functions */
445
446 extern int mm_flags;
447
448 void add_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
449 void put_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
450 void put_signed_pixels_clamped_mmx(const DCTELEM *block, uint8_t *pixels, int line_size);
451
452 static inline void emms(void)
453 {
454 __asm __volatile ("emms;":::"memory");
455 }
456
457
458 #define emms_c() \
459 {\
460 if (mm_flags & MM_MMX)\
461 emms();\
462 }
463
464 #ifdef __GNUC__
465 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
466 #else
467 #define DECLARE_ALIGNED_8(t,v) __declspec(align(8)) t v
468 #endif
469
470 #define STRIDE_ALIGN 8
471
472 void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx);
473 void dsputil_init_pix_mmx(DSPContext* c, AVCodecContext *avctx);
474
475 #elif defined(ARCH_ARMV4L)
476
477 /* This is to use 4 bytes read to the IDCT pointers for some 'zero'
478 line optimizations */
479 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (4)))
480 #define STRIDE_ALIGN 4
481
482 #define MM_IWMMXT 0x0100 /* XScale IWMMXT */
483
484 extern int mm_flags;
485
486 void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx);
487
488 #elif defined(HAVE_MLIB)
489
490 /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
491 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
492 #define STRIDE_ALIGN 8
493
494 void dsputil_init_mlib(DSPContext* c, AVCodecContext *avctx);
495
496 #elif defined(ARCH_SPARC)
497
498 /* SPARC/VIS IDCT needs 8-byte aligned DCT blocks */
499 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
500 #define STRIDE_ALIGN 8
501 void dsputil_init_vis(DSPContext* c, AVCodecContext *avctx);
502
503 #elif defined(ARCH_ALPHA)
504
505 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
506 #define STRIDE_ALIGN 8
507
508 void dsputil_init_alpha(DSPContext* c, AVCodecContext *avctx);
509
510 #elif defined(ARCH_POWERPC)
511
512 #define MM_ALTIVEC 0x0001 /* standard AltiVec */
513
514 extern int mm_flags;
515
516 #if defined(HAVE_ALTIVEC) && !defined(CONFIG_DARWIN)
517 #define pixel altivec_pixel
518 #include <altivec.h>
519 #undef pixel
520 #endif
521
522 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (16)))
523 #define STRIDE_ALIGN 16
524
525 void dsputil_init_ppc(DSPContext* c, AVCodecContext *avctx);
526
527 #elif defined(HAVE_MMI)
528
529 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (16)))
530 #define STRIDE_ALIGN 16
531
532 void dsputil_init_mmi(DSPContext* c, AVCodecContext *avctx);
533
534 #elif defined(ARCH_SH4)
535
536 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
537 #define STRIDE_ALIGN 8
538
539 void dsputil_init_sh4(DSPContext* c, AVCodecContext *avctx);
540
541 #else
542
543 #define DECLARE_ALIGNED_8(t,v) t v __attribute__ ((aligned (8)))
544 #define STRIDE_ALIGN 8
545
546 #endif
547
548 #ifdef __GNUC__
549
550 struct unaligned_64 { uint64_t l; } __attribute__((packed));
551 struct unaligned_32 { uint32_t l; } __attribute__((packed));
552 struct unaligned_16 { uint16_t l; } __attribute__((packed));
553
554 #define LD16(a) (((const struct unaligned_16 *) (a))->l)
555 #define LD32(a) (((const struct unaligned_32 *) (a))->l)
556 #define LD64(a) (((const struct unaligned_64 *) (a))->l)
557
558 #define ST16(a, b) (((struct unaligned_16 *) (a))->l) = (b)
559 #define ST32(a, b) (((struct unaligned_32 *) (a))->l) = (b)
560
561 #else /* __GNUC__ */
562
563 #define LD16(a) (*((uint16_t*)(a)))
564 #define LD32(a) (*((uint32_t*)(a)))
565 #define LD64(a) (*((uint64_t*)(a)))
566
567 #define ST16(a, b) *((uint16_t*)(a)) = (b)
568 #define ST32(a, b) *((uint32_t*)(a)) = (b)
569
570 #endif /* !__GNUC__ */
571
572 /* PSNR */
573 void get_psnr(uint8_t *orig_image[3], uint8_t *coded_image[3],
574 int orig_linesize[3], int coded_linesize,
575 AVCodecContext *avctx);
576
577 /* FFT computation */
578
579 /* NOTE: soon integer code will be added, so you must use the
580 FFTSample type */
581 typedef float FFTSample;
582
583 typedef struct FFTComplex {
584 FFTSample re, im;
585 } FFTComplex;
586
587 typedef struct FFTContext {
588 int nbits;
589 int inverse;
590 uint16_t *revtab;
591 FFTComplex *exptab;
592 FFTComplex *exptab1; /* only used by SSE code */
593 void (*fft_calc)(struct FFTContext *s, FFTComplex *z);
594 } FFTContext;
595
596 int ff_fft_init(FFTContext *s, int nbits, int inverse);
597 void ff_fft_permute(FFTContext *s, FFTComplex *z);
598 void ff_fft_calc_c(FFTContext *s, FFTComplex *z);
599 void ff_fft_calc_sse(FFTContext *s, FFTComplex *z);
600 void ff_fft_calc_3dn(FFTContext *s, FFTComplex *z);
601 void ff_fft_calc_3dn2(FFTContext *s, FFTComplex *z);
602 void ff_fft_calc_altivec(FFTContext *s, FFTComplex *z);
603
604 static inline void ff_fft_calc(FFTContext *s, FFTComplex *z)
605 {
606 s->fft_calc(s, z);
607 }
608 void ff_fft_end(FFTContext *s);
609
610 /* MDCT computation */
611
612 typedef struct MDCTContext {
613 int n; /* size of MDCT (i.e. number of input data * 2) */
614 int nbits; /* n = 2^nbits */
615 /* pre/post rotation tables */
616 FFTSample *tcos;
617 FFTSample *tsin;
618 FFTContext fft;
619 } MDCTContext;
620
621 int ff_mdct_init(MDCTContext *s, int nbits, int inverse);
622 void ff_imdct_calc(MDCTContext *s, FFTSample *output,
623 const FFTSample *input, FFTSample *tmp);
624 void ff_mdct_calc(MDCTContext *s, FFTSample *out,
625 const FFTSample *input, FFTSample *tmp);
626 void ff_mdct_end(MDCTContext *s);
627
628 #define WARPER8_16(name8, name16)\
629 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
630 return name8(s, dst , src , stride, h)\
631 +name8(s, dst+8 , src+8 , stride, h);\
632 }
633
634 #define WARPER8_16_SQ(name8, name16)\
635 static int name16(void /*MpegEncContext*/ *s, uint8_t *dst, uint8_t *src, int stride, int h){\
636 int score=0;\
637 score +=name8(s, dst , src , stride, 8);\
638 score +=name8(s, dst+8 , src+8 , stride, 8);\
639 if(h==16){\
640 dst += 8*stride;\
641 src += 8*stride;\
642 score +=name8(s, dst , src , stride, 8);\
643 score +=name8(s, dst+8 , src+8 , stride, 8);\
644 }\
645 return score;\
646 }
647
648 #endif