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 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
 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
 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
 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
 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
 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
 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
 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
 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
 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
 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
 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 */