git.sesse.net Git - ffmpeg/blob - libavcodec/bfin/hpel_pixels_bfin.S

   1 /*
   2  * Blackfin Pixel Operations
   3  * Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21 #include "config_bfin.h"
  22
  23 /*
  24   motion compensation
  25   primitives
  26
  27      * Halfpel motion compensation with rounding (a+b+1)>>1.
  28      * This is an array[4][4] of motion compensation funcions for 4
  29      * horizontal blocksizes (8,16) and the 4 halfpel positions<br>
  30      * *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
  31      * @param block destination where the result is stored
  32      * @param pixels source
  33      * @param line_size number of bytes in a horizontal line of block
  34      * @param h height
  35
  36 */
  37
  38 DEFUN(put_pixels8uc,mL1,
  39         (uint8_t *block, const uint8_t *s0, const uint8_t *s1,
  40                  int dest_size, int line_size, int h)):
  41         i3=r0;        // dest
  42         i0=r1;        // src0
  43         i1=r2;        // src1
  44         r0=[sp+12];   // dest_size
  45         r2=[sp+16];   // line_size
  46         p0=[sp+20];   // h
  47         [--sp] = (r7:6);
  48         r0+=-4;
  49         m3=r0;
  50         r2+=-8;
  51         m0=r2;
  52         LSETUP(pp8$0,pp8$1) LC0=P0;
  53         DISALGNEXCPT                || R0 = [I0++]  || R2  =[I1++];
  54
  55 pp8$0:  DISALGNEXCPT                || R1 = [I0++]  || R3  =[I1++];
  56         R6 = BYTEOP1P(R1:0,R3:2)    || R0 = [I0++M0]|| R2  =[I1++M0];
  57         R7 = BYTEOP1P(R1:0,R3:2)(R) || R0 = [I0++]  || [I3++] = R6 ;
  58 pp8$1:  DISALGNEXCPT                || R2 = [I1++]  || [I3++M3] = R7;
  59
  60         (r7:6) = [sp++];
  61         RTS;
  62 DEFUN_END(put_pixels8uc)
  63
  64 DEFUN(put_pixels16uc,mL1,
  65         (uint8_t *block, const uint8_t *s0, const uint8_t *s1,
  66                  int dest_size, int line_size, int h)):
  67         link 0;
  68         [--sp] = (r7:6);
  69         i3=r0;        // dest
  70         i0=r1;        // src0
  71         i1=r2;        // src1
  72         r0=[fp+20];   // dest_size
  73         r2=[fp+24];   // line_size
  74         p0=[fp+28];   // h
  75
  76
  77         r0+=-12;
  78         m3=r0;        // line_size
  79         r2+=-16;
  80         m0=r2;
  81
  82         LSETUP(pp16$0,pp16$1) LC0=P0;
  83          DISALGNEXCPT                || R0 = [I0++]   || R2  =[I1++];
  84
  85 pp16$0:  DISALGNEXCPT                || R1 = [I0++]   || R3  =[I1++];
  86          R6 = BYTEOP1P(R1:0,R3:2)    || R0 = [I0++]   || R2  =[I1++];
  87          R7 = BYTEOP1P(R1:0,R3:2)(R) || R1 = [I0++]   || R3  =[I1++];
  88          [I3++] = R6;
  89          R6 = BYTEOP1P(R1:0,R3:2)    || R0 = [I0++M0] || R2  =[I1++M0];
  90          R7 = BYTEOP1P(R1:0,R3:2)(R) || R0 = [I0++]   || [I3++] = R7 ;
  91          [I3++] = R6;
  92 pp16$1:  DISALGNEXCPT                || R2 = [I1++]   || [I3++M3] = R7;
  93
  94         (r7:6) = [sp++];
  95         unlink;
  96         RTS;
  97 DEFUN_END(put_pixels16uc)
  98
  99
 100
 101
 102
 103
 104 DEFUN(put_pixels8uc_nornd,mL1,
 105         (uint8_t *block, const uint8_t *s0, const uint8_t *s1,
 106                  int line_size, int h)):
 107         i3=r0;        // dest
 108         i0=r1;        // src0
 109         i1=r2;        // src1
 110         r2=[sp+12];   // line_size
 111         p0=[sp+16];   // h
 112         [--sp] = (r7:6);
 113         r2+=-4;
 114         m3=r2;
 115         r2+=-4;
 116         m0=r2;
 117         LSETUP(pp8$2,pp8$3) LC0=P0;
 118         DISALGNEXCPT                || R0 = [I0++]  || R2  =[I1++];
 119
 120 pp8$2:  DISALGNEXCPT                || R1 = [I0++]  || R3  =[I1++];
 121         R6 = BYTEOP1P(R1:0,R3:2)(T)  || R0 = [I0++M0]|| R2  =[I1++M0];
 122         R7 = BYTEOP1P(R1:0,R3:2)(T,R) || R0 = [I0++]  || [I3++] = R6 ;
 123 pp8$3:  DISALGNEXCPT                || R2 = [I1++]  || [I3++M3] = R7;
 124
 125         (r7:6) = [sp++];
 126         RTS;
 127 DEFUN_END(put_pixels8uc_nornd)
 128
 129 DEFUN(put_pixels16uc_nornd,mL1,
 130         (uint8_t *block, const uint8_t *s0, const uint8_t *s1,
 131                  int line_size, int h)):
 132         i3=r0;        // dest
 133         i0=r1;        // src0
 134         i1=r2;        // src1
 135         r2=[sp+12];   // line_size
 136         p0=[sp+16];   // h
 137
 138         [--sp] = (r7:6);
 139         r2+=-12;
 140         m3=r2;        // line_size
 141         r2+=-4;
 142         m0=r2;
 143
 144         LSETUP(pp16$2,pp16$3) LC0=P0;
 145         DISALGNEXCPT                || R0 = [I0++]   || R2  =[I1++];
 146
 147 pp16$2:
 148         DISALGNEXCPT                || R1 = [I0++]   || R3  =[I1++];
 149         R6 = BYTEOP1P(R1:0,R3:2)(T)    || R0 = [I0++]   || R2  =[I1++];
 150         R7 = BYTEOP1P(R1:0,R3:2)(T,R) || R1 = [I0++]   || R3  =[I1++];
 151         [I3++] = R6;
 152
 153         R6 = BYTEOP1P(R1:0,R3:2)(T)    || R0 = [I0++M0] || R2  =[I1++M0];
 154         R7 = BYTEOP1P(R1:0,R3:2)(T,R) || R0 = [I0++]   || [I3++] = R7 ;
 155         [I3++] = R6;
 156 pp16$3: DISALGNEXCPT                || R2 = [I1++]   || [I3++M3] = R7;
 157
 158         (r7:6) = [sp++];
 159
 160         RTS;
 161 DEFUN_END(put_pixels16uc_nornd)
 162
 163 DEFUN(z_put_pixels16_xy2,mL1,
 164         (uint8_t *block, const uint8_t *s0,
 165                  int dest_size, int line_size, int h)):
 166         link 0;
 167         [--sp] = (r7:4);
 168         i3=r0;        // dest
 169         i0=r1;        // src0--> pixels
 170         i1=r1;        // src1--> pixels + line_size
 171         r2+=-12;
 172         m2=r2;        // m2=dest_width-4
 173         r2=[fp+20];
 174         m3=r2;        // line_size
 175         p0=[fp+24];   // h
 176         r2+=-16;
 177         i1+=m3;       /* src1 + line_size */
 178         m0=r2;        /* line-size - 20 */
 179
 180         B0 = I0;
 181         B1 = I1;
 182         B3 = I3;
 183
 184         DISALGNEXCPT                       || R0 = [I0++] || R2  =[I1++];
 185
 186         LSETUP(LS$16E,LE$16E) LC0=P0;
 187 LS$16E: DISALGNEXCPT                       || R1 = [I0++] || R3  =[I1++];
 188         R4 = BYTEOP2P (R3:2,R1:0) (RNDL)   || R0 = [I0++] || R2  =[I1++];
 189         R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R1 = [I0++] || [I3++] = R4 ;
 190         DISALGNEXCPT                       || R3 = [I1++] || [I3++] = R5;
 191         R4 = BYTEOP2P (R3:2,R1:0) (RNDL)   || R0 = [I0++M0]|| R2  = [I1++M0];
 192         R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R0 = [I0++] || [I3++] = R4 ;
 193 LE$16E: DISALGNEXCPT                       || R2 = [I1++] || [I3++M2] = R5;
 194
 195         M1 = 1;
 196         I3 = B3;
 197         I1 = B1;
 198         I0 = B0;
 199
 200         I0 += M1;
 201         I1 += M1;
 202
 203         DISALGNEXCPT                       || R0 = [I0++] || R2  =[I1++];
 204         LSETUP(LS$16O,LE$16O) LC0=P0;
 205 LS$16O: DISALGNEXCPT                       || R1 = [I0++] || R3  =[I1++];
 206         R4 = BYTEOP2P (R3:2,R1:0) (RNDH)   || R0 = [I0++] || R2  =[I1++];
 207         R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R1 = [I0++] || R6  =[I3++];
 208         R4 = R4 +|+ R6                       || R7 = [I3--];
 209         R5 = R5 +|+ R7                       || [I3++] = R4;
 210         DISALGNEXCPT                       || R3  =[I1++] || [I3++] = R5;
 211         R4 = BYTEOP2P (R3:2,R1:0) (RNDH)   || R0 = [I0++M0]|| R2  = [I1++M0];
 212         R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R0 = [I0++] || R6 = [I3++];
 213         R4 = R4 +|+ R6                       || R7 = [I3--];
 214         R5 = R5 +|+ R7                       || [I3++] = R4;
 215 LE$16O: DISALGNEXCPT                       || R2 = [I1++] || [I3++M2] = R5;
 216
 217         (r7:4) = [sp++];
 218         unlink;
 219         rts;
 220 DEFUN_END(z_put_pixels16_xy2)
 221
 222 DEFUN(put_pixels16_xy2_nornd,mL1,
 223         (uint8_t *block, const uint8_t *s0,
 224                  int line_size, int h)):
 225         link 0;
 226         [--sp] = (r7:4);
 227         i3=r0;        // dest
 228         i0=r1;        // src0--> pixels
 229         i1=r1;        // src1--> pixels + line_size
 230         m3=r2;
 231         r2+=-12;
 232         m2=r2;
 233         r2+=-4;
 234         i1+=m3;       /* src1 + line_size */
 235         m0=r2;        /* line-size - 20 */
 236         p0=[fp+20];   // h
 237
 238         B0=I0;
 239         B1=I1;
 240         B3=I3;
 241
 242         DISALGNEXCPT                       || R0 = [I0++] || R2  =[I1++];
 243
 244         LSETUP(LS$16ET,LE$16ET) LC0=P0;
 245 LS$16ET:DISALGNEXCPT                       || R1 = [I0++] || R3  =[I1++];
 246         R4 = BYTEOP2P (R3:2,R1:0) (TL)     || R0 = [I0++] || R2  =[I1++];
 247         R5 = BYTEOP2P (R3:2,R1:0) (TL,R)   || R1 = [I0++] || [I3++] = R4 ;
 248         DISALGNEXCPT                       || R3 = [I1++] || [I3++] = R5;
 249         R4 = BYTEOP2P (R3:2,R1:0) (TL)     || R0 = [I0++M0]|| R2  = [I1++M0];
 250         R5 = BYTEOP2P (R3:2,R1:0) (TL,R)   || R0 = [I0++] || [I3++] = R4 ;
 251 LE$16ET:DISALGNEXCPT                       || R2 = [I1++] || [I3++M2] = R5;
 252
 253         M1 = 1;
 254         I3=B3;
 255         I1=B1;
 256         I0=B0;
 257
 258         I0 += M1;
 259         I1 += M1;
 260
 261         DISALGNEXCPT                       || R0 = [I0++] || R2  =[I1++];
 262         LSETUP(LS$16OT,LE$16OT) LC0=P0;
 263 LS$16OT:DISALGNEXCPT                       || R1 = [I0++] || R3  =[I1++];
 264         R4 = BYTEOP2P (R3:2,R1:0) (TH)     || R0 = [I0++] || R2  =[I1++];
 265         R5 = BYTEOP2P (R3:2,R1:0) (TH,R)   || R1 = [I0++] || R6  =[I3++];
 266         R4 = R4 +|+ R6                                    || R7 = [I3--];
 267         R5 = R5 +|+ R7                                    || [I3++] = R4;
 268         DISALGNEXCPT                       || R3  =[I1++] || [I3++] = R5;
 269         R4 = BYTEOP2P (R3:2,R1:0) (TH)     || R0 = [I0++M0]|| R2  = [I1++M0];
 270         R5 = BYTEOP2P (R3:2,R1:0) (TH,R)   || R0 = [I0++] || R6 = [I3++];
 271         R4 = R4 +|+ R6                                    || R7 = [I3--];
 272         R5 = R5 +|+ R7                                    || [I3++] = R4;
 273 LE$16OT:DISALGNEXCPT                       || R2 = [I1++] || [I3++M2] = R5;
 274
 275         (r7:4) = [sp++];
 276         unlink;
 277         rts;
 278 DEFUN_END(put_pixels16_xy2_nornd)
 279
 280 DEFUN(z_put_pixels8_xy2,mL1,
 281         (uint8_t *block, const uint8_t *s0,
 282                  int dest_size, int line_size, int h)):
 283         link 0;
 284         [--sp] = (r7:4);
 285         i3=r0;        // dest
 286         i0=r1;        // src0--> pixels
 287         i1=r1;        // src1--> pixels + line_size
 288         r2+=-4;
 289         m2=r2;        // m2=dest_width-4
 290         r2=[fp+20];
 291         m3=r2;        // line_size
 292         p0=[fp+24];   // h
 293         r2+=-8;
 294         i1+=m3;       /* src1 + line_size */
 295         m0=r2;        /* line-size - 20 */
 296
 297         b0 = I0;
 298         b1 = I1;
 299         b3 = I3;
 300
 301         LSETUP(LS$8E,LE$8E) LC0=P0;
 302         DISALGNEXCPT                       || R0 = [I0++]   || R2  =[I1++];
 303 LS$8E:  DISALGNEXCPT                       || R1 = [I0++]   || R3  =[I1++];
 304         R4 = BYTEOP2P (R3:2,R1:0) (RNDL)   || R0 = [I0++M0] || R2  =[I1++M0];
 305         R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R0 = [I0++]   || [I3++] = R4 ;
 306 LE$8E:  DISALGNEXCPT                       || R2 = [I1++]   || [I3++M2] = R5;
 307
 308         M1 = 1;
 309         I3 = b3;
 310         I1 = b1;
 311         I0 = b0;
 312
 313         I0 += M1;
 314         I1 += M1;
 315
 316         LSETUP(LS$8O,LE$8O) LC0=P0;
 317         DISALGNEXCPT                       || R0 = [I0++]   || R2  =[I1++];
 318 LS$8O:  DISALGNEXCPT                       || R1 = [I0++]   || R3  =[I1++];
 319         R4 = BYTEOP2P (R3:2,R1:0) (RNDH)   || R0 = [I0++M0] || R2  =[I1++M0];
 320         R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R0 = [I0++]   || R6  =[I3++];
 321         R4 = R4 +|+ R6                                      || R7 = [I3--];
 322         R5 = R5 +|+ R7                                      || [I3++] = R4;
 323 LE$8O:  DISALGNEXCPT                       || R2  =[I1++]   || [I3++M2] = R5;
 324
 325         (r7:4) = [sp++];
 326         unlink;
 327         rts;
 328 DEFUN_END(z_put_pixels8_xy2)
 329
 330 DEFUN(put_pixels8_xy2_nornd,mL1,
 331         (uint8_t *block, const uint8_t *s0, int line_size, int h)):
 332         link 0;
 333         [--sp] = (r7:4);
 334         i3=r0;        // dest
 335         i0=r1;        // src0--> pixels
 336         i1=r1;        // src1--> pixels + line_size
 337         m3=r2;
 338         r2+=-4;
 339         m2=r2;
 340         r2+=-4;
 341         i1+=m3;       /* src1 + line_size */
 342         m0=r2;        /* line-size - 20 */
 343         p0=[fp+20];   // h
 344
 345
 346         b0 = I0;
 347         b1 = I1;
 348         b3 = I3;
 349
 350         LSETUP(LS$8ET,LE$8ET) LC0=P0;
 351         DISALGNEXCPT                       || R0 = [I0++]   || R2  =[I1++];
 352
 353 LS$8ET: DISALGNEXCPT                       || R1 = [I0++]   || R3 = [I1++];
 354         R4 = BYTEOP2P (R3:2,R1:0) (TL)     || R0 = [I0++M0] || R2 = [I1++M0];
 355         R5 = BYTEOP2P (R3:2,R1:0) (TL,R)   || R0 = [I0++]   || [I3++] = R4 ;
 356 LE$8ET: DISALGNEXCPT                       || R2 = [I1++]   || [I3++M2] = R5;
 357
 358         M1 = 1;
 359         I3 = b3;
 360         I1 = b1;
 361         I0 = b0;
 362
 363         I0 += M1;
 364         I1 += M1;
 365
 366         LSETUP(LS$8OT,LE$8OT) LC0=P0;
 367         DISALGNEXCPT                       || R0 = [I0++]   || R2 = [I1++];
 368
 369 LS$8OT: DISALGNEXCPT                       || R1 = [I0++]   || R3 = [I1++];
 370         R4 = BYTEOP2P (R3:2,R1:0) (TH)     || R0 = [I0++M0] || R2 = [I1++M0];
 371         R5 = BYTEOP2P (R3:2,R1:0) (TH,R)   || R0 = [I0++]   || R6 = [I3++];
 372         R4 = R4 +|+ R6                                      || R7 = [I3--];
 373         R5 = R5 +|+ R7                                      || [I3++] = R4;
 374 LE$8OT: DISALGNEXCPT                       || R2  =[I1++]   || [I3++M2] = R5;
 375
 376         (r7:4) = [sp++];
 377         unlink;
 378         rts;
 379 DEFUN_END(put_pixels8_xy2_nornd)