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FFmpeg/libavcodec/armv4l/dsputil_arm.c

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  1. /*

  2.  * ARMv4L optimized DSP utils

  3.  * Copyright (c) 2001 Lionel Ulmer.

  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. 

  22. #include "libavcodec/dsputil.h"

  23. #ifdef HAVE_IPP

  24. #include <ipp.h>

  25. #endif

  26. 

  27. extern void dsputil_init_iwmmxt(DSPContext* c, AVCodecContext *avctx);

  28. extern void ff_float_init_arm_vfp(DSPContext* c, AVCodecContext *avctx);

  29. 

  30. extern void j_rev_dct_ARM(DCTELEM *data);

  31. extern void simple_idct_ARM(DCTELEM *data);

  32. 

  33. extern void simple_idct_armv5te(DCTELEM *data);

  34. extern void simple_idct_put_armv5te(uint8_t *dest, int line_size,

  35.                                     DCTELEM *data);

  36. extern void simple_idct_add_armv5te(uint8_t *dest, int line_size,

  37.                                     DCTELEM *data);

  38. 

  39. extern void ff_simple_idct_armv6(DCTELEM *data);

  40. extern void ff_simple_idct_put_armv6(uint8_t *dest, int line_size,

  41.                                      DCTELEM *data);

  42. extern void ff_simple_idct_add_armv6(uint8_t *dest, int line_size,

  43.                                      DCTELEM *data);

  44. 

  45. /* XXX: local hack */

  46. static void (*ff_put_pixels_clamped)(const DCTELEM *block, uint8_t *pixels, int line_size);

  47. static void (*ff_add_pixels_clamped)(const DCTELEM *block, uint8_t *pixels, int line_size);

  48. 

  49. void put_pixels8_arm(uint8_t *block, const uint8_t *pixels, int line_size, int h);

  50. void put_pixels8_x2_arm(uint8_t *block, const uint8_t *pixels, int line_size, int h);

  51. void put_pixels8_y2_arm(uint8_t *block, const uint8_t *pixels, int line_size, int h);

  52. void put_pixels8_xy2_arm(uint8_t *block, const uint8_t *pixels, int line_size, int h);

  53. 

  54. void put_no_rnd_pixels8_x2_arm(uint8_t *block, const uint8_t *pixels, int line_size, int h);

  55. void put_no_rnd_pixels8_y2_arm(uint8_t *block, const uint8_t *pixels, int line_size, int h);

  56. void put_no_rnd_pixels8_xy2_arm(uint8_t *block, const uint8_t *pixels, int line_size, int h);

  57. 

  58. void put_pixels16_arm(uint8_t *block, const uint8_t *pixels, int line_size, int h);

  59. 

  60. CALL_2X_PIXELS(put_pixels16_x2_arm , put_pixels8_x2_arm , 8)

  61. CALL_2X_PIXELS(put_pixels16_y2_arm , put_pixels8_y2_arm , 8)

  62. CALL_2X_PIXELS(put_pixels16_xy2_arm, put_pixels8_xy2_arm, 8)

  63. CALL_2X_PIXELS(put_no_rnd_pixels16_x2_arm , put_no_rnd_pixels8_x2_arm , 8)

  64. CALL_2X_PIXELS(put_no_rnd_pixels16_y2_arm , put_no_rnd_pixels8_y2_arm , 8)

  65. CALL_2X_PIXELS(put_no_rnd_pixels16_xy2_arm, put_no_rnd_pixels8_xy2_arm, 8)

  66. 

  67. static void add_pixels_clamped_ARM(short *block, unsigned char *dest, int line_size)

  68. {

  69.     __asm__ volatile (

  70.                   "mov r10, #8 \n\t"

  71. 

  72.                   "1: \n\t"

  73. 

  74.                   /* load dest */

  75.                   "ldr r4, [%1] \n\t"

  76.                   /* block[0] and block[1]*/

  77.                   "ldrsh r5, [%0] \n\t"

  78.                   "ldrsh r7, [%0, #2] \n\t"

  79.                   "and r6, r4, #0xFF \n\t"

  80.                   "and r8, r4, #0xFF00 \n\t"

  81.                   "add r6, r5, r6 \n\t"

  82.                   "add r8, r7, r8, lsr #8 \n\t"

  83.                   "mvn r5, r5 \n\t"

  84.                   "mvn r7, r7 \n\t"

  85.                   "tst r6, #0x100 \n\t"

  86.                   "movne r6, r5, lsr #24 \n\t"

  87.                   "tst r8, #0x100 \n\t"

  88.                   "movne r8, r7, lsr #24 \n\t"

  89.                   "mov r9, r6 \n\t"

  90.                   "ldrsh r5, [%0, #4] \n\t" /* moved form [A] */

  91.                   "orr r9, r9, r8, lsl #8 \n\t"

  92.                   /* block[2] and block[3] */

  93.                   /* [A] */

  94.                   "ldrsh r7, [%0, #6] \n\t"

  95.                   "and r6, r4, #0xFF0000 \n\t"

  96.                   "and r8, r4, #0xFF000000 \n\t"

  97.                   "add r6, r5, r6, lsr #16 \n\t"

  98.                   "add r8, r7, r8, lsr #24 \n\t"

  99.                   "mvn r5, r5 \n\t"

  100.                   "mvn r7, r7 \n\t"

  101.                   "tst r6, #0x100 \n\t"

  102.                   "movne r6, r5, lsr #24 \n\t"

  103.                   "tst r8, #0x100 \n\t"

  104.                   "movne r8, r7, lsr #24 \n\t"

  105.                   "orr r9, r9, r6, lsl #16 \n\t"

  106.                   "ldr r4, [%1, #4] \n\t"       /* moved form [B] */

  107.                   "orr r9, r9, r8, lsl #24 \n\t"

  108.                   /* store dest */

  109.                   "ldrsh r5, [%0, #8] \n\t" /* moved form [C] */

  110.                   "str r9, [%1] \n\t"

  111. 

  112.                   /* load dest */

  113.                   /* [B] */

  114.                   /* block[4] and block[5] */

  115.                   /* [C] */

  116.                   "ldrsh r7, [%0, #10] \n\t"

  117.                   "and r6, r4, #0xFF \n\t"

  118.                   "and r8, r4, #0xFF00 \n\t"

  119.                   "add r6, r5, r6 \n\t"

  120.                   "add r8, r7, r8, lsr #8 \n\t"

  121.                   "mvn r5, r5 \n\t"

  122.                   "mvn r7, r7 \n\t"

  123.                   "tst r6, #0x100 \n\t"

  124.                   "movne r6, r5, lsr #24 \n\t"

  125.                   "tst r8, #0x100 \n\t"

  126.                   "movne r8, r7, lsr #24 \n\t"

  127.                   "mov r9, r6 \n\t"

  128.                   "ldrsh r5, [%0, #12] \n\t" /* moved from [D] */

  129.                   "orr r9, r9, r8, lsl #8 \n\t"

  130.                   /* block[6] and block[7] */

  131.                   /* [D] */

  132.                   "ldrsh r7, [%0, #14] \n\t"

  133.                   "and r6, r4, #0xFF0000 \n\t"

  134.                   "and r8, r4, #0xFF000000 \n\t"

  135.                   "add r6, r5, r6, lsr #16 \n\t"

  136.                   "add r8, r7, r8, lsr #24 \n\t"

  137.                   "mvn r5, r5 \n\t"

  138.                   "mvn r7, r7 \n\t"

  139.                   "tst r6, #0x100 \n\t"

  140.                   "movne r6, r5, lsr #24 \n\t"

  141.                   "tst r8, #0x100 \n\t"

  142.                   "movne r8, r7, lsr #24 \n\t"

  143.                   "orr r9, r9, r6, lsl #16 \n\t"

  144.                   "add %0, %0, #16 \n\t" /* moved from [E] */

  145.                   "orr r9, r9, r8, lsl #24 \n\t"

  146.                   "subs r10, r10, #1 \n\t" /* moved from [F] */

  147.                   /* store dest */

  148.                   "str r9, [%1, #4] \n\t"

  149. 

  150.                   /* [E] */

  151.                   /* [F] */

  152.                   "add %1, %1, %2 \n\t"

  153.                   "bne 1b \n\t"

  154.                   : "+r"(block),

  155.                     "+r"(dest)

  156.                   : "r"(line_size)

  157.                   : "r4", "r5", "r6", "r7", "r8", "r9", "r10", "cc", "memory" );

  158. }

  159. 

  160. /* XXX: those functions should be suppressed ASAP when all IDCTs are

  161.    converted */

  162. static void j_rev_dct_ARM_put(uint8_t *dest, int line_size, DCTELEM *block)

  163. {

  164.     j_rev_dct_ARM (block);

  165.     ff_put_pixels_clamped(block, dest, line_size);

  166. }

  167. static void j_rev_dct_ARM_add(uint8_t *dest, int line_size, DCTELEM *block)

  168. {

  169.     j_rev_dct_ARM (block);

  170.     ff_add_pixels_clamped(block, dest, line_size);

  171. }

  172. static void simple_idct_ARM_put(uint8_t *dest, int line_size, DCTELEM *block)

  173. {

  174.     simple_idct_ARM (block);

  175.     ff_put_pixels_clamped(block, dest, line_size);

  176. }

  177. static void simple_idct_ARM_add(uint8_t *dest, int line_size, DCTELEM *block)

  178. {

  179.     simple_idct_ARM (block);

  180.     ff_add_pixels_clamped(block, dest, line_size);

  181. }

  182. 

  183. #ifdef HAVE_IPP

  184. static void simple_idct_ipp(DCTELEM *block)

  185. {

  186.     ippiDCT8x8Inv_Video_16s_C1I(block);

  187. }

  188. static void simple_idct_ipp_put(uint8_t *dest, int line_size, DCTELEM *block)

  189. {

  190.     ippiDCT8x8Inv_Video_16s8u_C1R(block, dest, line_size);

  191. }

  192. 

  193. void add_pixels_clamped_iwmmxt(const DCTELEM *block, uint8_t *pixels, int line_size);

  194. 

  195. static void simple_idct_ipp_add(uint8_t *dest, int line_size, DCTELEM *block)

  196. {

  197.     ippiDCT8x8Inv_Video_16s_C1I(block);

  198. #ifdef HAVE_IWMMXT

  199.     add_pixels_clamped_iwmmxt(block, dest, line_size);

  200. #else

  201.     add_pixels_clamped_ARM(block, dest, line_size);

  202. #endif

  203. }

  204. #endif

  205. 

  206. #ifdef HAVE_ARMV5TE

  207. static void prefetch_arm(void *mem, int stride, int h)

  208. {

  209.     __asm__ volatile(

  210.         "1:              \n\t"

  211.         "subs %0, %0, #1 \n\t"

  212.         "pld  [%1]       \n\t"

  213.         "add  %1, %1, %2 \n\t"

  214.         "bgt  1b         \n\t"

  215.         : "+r"(h), "+r"(mem) : "r"(stride));

  216. }

  217. #endif

  218. 

  219. int mm_support(void)

  220. {

  221.     return ENABLE_IWMMXT * MM_IWMMXT;

  222. }

  223. 

  224. void dsputil_init_armv4l(DSPContext* c, AVCodecContext *avctx)

  225. {

  226.     int idct_algo= avctx->idct_algo;

  227. 

  228.     ff_put_pixels_clamped = c->put_pixels_clamped;

  229.     ff_add_pixels_clamped = c->add_pixels_clamped;

  230. 

  231.     if (avctx->lowres == 0) {

  232.         if(idct_algo == FF_IDCT_AUTO){

  233. #if defined(HAVE_IPP)

  234.             idct_algo = FF_IDCT_IPP;

  235. #elif defined(HAVE_ARMV6)

  236.             idct_algo = FF_IDCT_SIMPLEARMV6;

  237. #elif defined(HAVE_ARMV5TE)

  238.             idct_algo = FF_IDCT_SIMPLEARMV5TE;

  239. #else

  240.             idct_algo = FF_IDCT_ARM;

  241. #endif

  242.         }

  243. 

  244.         if(idct_algo==FF_IDCT_ARM){

  245.             c->idct_put= j_rev_dct_ARM_put;

  246.             c->idct_add= j_rev_dct_ARM_add;

  247.             c->idct    = j_rev_dct_ARM;

  248.             c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;/* FF_NO_IDCT_PERM */

  249.         } else if (idct_algo==FF_IDCT_SIMPLEARM){

  250.             c->idct_put= simple_idct_ARM_put;

  251.             c->idct_add= simple_idct_ARM_add;

  252.             c->idct    = simple_idct_ARM;

  253.             c->idct_permutation_type= FF_NO_IDCT_PERM;

  254. #ifdef HAVE_ARMV6

  255.         } else if (idct_algo==FF_IDCT_SIMPLEARMV6){

  256.             c->idct_put= ff_simple_idct_put_armv6;

  257.             c->idct_add= ff_simple_idct_add_armv6;

  258.             c->idct    = ff_simple_idct_armv6;

  259.             c->idct_permutation_type= FF_LIBMPEG2_IDCT_PERM;

  260. #endif

  261. #ifdef HAVE_ARMV5TE

  262.         } else if (idct_algo==FF_IDCT_SIMPLEARMV5TE){

  263.             c->idct_put= simple_idct_put_armv5te;

  264.             c->idct_add= simple_idct_add_armv5te;

  265.             c->idct    = simple_idct_armv5te;

  266.             c->idct_permutation_type = FF_NO_IDCT_PERM;

  267. #endif

  268. #ifdef HAVE_IPP

  269.         } else if (idct_algo==FF_IDCT_IPP){

  270.             c->idct_put= simple_idct_ipp_put;

  271.             c->idct_add= simple_idct_ipp_add;

  272.             c->idct    = simple_idct_ipp;

  273.             c->idct_permutation_type= FF_NO_IDCT_PERM;

  274. #endif

  275.         }

  276.     }

  277. 

  278.     c->put_pixels_tab[0][0] = put_pixels16_arm;

  279.     c->put_pixels_tab[0][1] = put_pixels16_x2_arm; //OK!

  280.     c->put_pixels_tab[0][2] = put_pixels16_y2_arm; //OK!

  281.     c->put_pixels_tab[0][3] = put_pixels16_xy2_arm;

  282.     c->put_no_rnd_pixels_tab[0][0] = put_pixels16_arm;

  283.     c->put_no_rnd_pixels_tab[0][1] = put_no_rnd_pixels16_x2_arm; // OK

  284.     c->put_no_rnd_pixels_tab[0][2] = put_no_rnd_pixels16_y2_arm; //OK

  285.     c->put_no_rnd_pixels_tab[0][3] = put_no_rnd_pixels16_xy2_arm;

  286.     c->put_pixels_tab[1][0] = put_pixels8_arm; //OK

  287.     c->put_pixels_tab[1][1] = put_pixels8_x2_arm; //OK

  288.     c->put_pixels_tab[1][2] = put_pixels8_y2_arm;

  289.     c->put_pixels_tab[1][3] = put_pixels8_xy2_arm;

  290.     c->put_no_rnd_pixels_tab[1][0] = put_pixels8_arm;//OK

  291.     c->put_no_rnd_pixels_tab[1][1] = put_no_rnd_pixels8_x2_arm; //OK

  292.     c->put_no_rnd_pixels_tab[1][2] = put_no_rnd_pixels8_y2_arm; //OK

  293.     c->put_no_rnd_pixels_tab[1][3] = put_no_rnd_pixels8_xy2_arm;

  294. 

  295. #ifdef HAVE_ARMV5TE

  296.     c->prefetch = prefetch_arm;

  297. #endif

  298. 

  299. #ifdef HAVE_IWMMXT

  300.     dsputil_init_iwmmxt(c, avctx);

  301. #endif

  302. #ifdef HAVE_ARMVFP

  303.     ff_float_init_arm_vfp(c, avctx);

  304. #endif

  305. }