falkTX
/
FFmpeg
mirror of https://github.com/falkTX/FFmpeg.git
1
0
Fork 0
Code Issues 0 Releases 338 Wiki Activity
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
3464 Commits
32 Branches
307MB
Tree: d4c5d2adf3
Branches Tags
${ item.name }
Create branch ${ searchTerm }
from 'd4c5d2adf3'
${ noResults }
FFmpeg/libavcodec/i386/mpegvideo_mmx.c

723 lines
22KB
Raw Blame History 

  1. /*

  2.  * The simplest mpeg encoder (well, it was the simplest!)

  3.  * Copyright (c) 2000,2001 Fabrice Bellard.

  4.  *

  5.  * This library is free software; you can redistribute it and/or

  6.  * modify it under the terms of the GNU Lesser General Public

  7.  * License as published by the Free Software Foundation; either

  8.  * version 2 of the License, or (at your option) any later version.

  9.  *

  10.  * This library is distributed in the hope that it will be useful,

  11.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  12.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  13.  * Lesser General Public License for more details.

  14.  *

  15.  * You should have received a copy of the GNU Lesser General Public

  16.  * License along with this library; if not, write to the Free Software

  17.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

  18.  *

  19.  * Optimized for ia32 cpus by Nick Kurshev <nickols_k@mail.ru>

  20.  * h263, mpeg1, mpeg2 dequantizer & draw_edges by Michael Niedermayer <michaelni@gmx.at>

  21.  */

  22. 

  23. #include "../dsputil.h"

  24. #include "../mpegvideo.h"

  25. #include "../avcodec.h"

  26. 

  27. extern uint8_t zigzag_direct_noperm[64];

  28. extern uint16_t inv_zigzag_direct16[64];

  29. 

  30. static const unsigned long long int mm_wabs __attribute__ ((aligned(8))) = 0xffffffffffffffffULL;

  31. static const unsigned long long int mm_wone __attribute__ ((aligned(8))) = 0x0001000100010001ULL;

  32. 

  33. 

  34. static void dct_unquantize_h263_intra_mmx(MpegEncContext *s,

  35.                                   DCTELEM *block, int n, int qscale)

  36. {

  37.     int level, qmul, qadd, nCoeffs;

  38. 

  39.     qmul = qscale << 1;

  40. 

  41.     assert(s->block_last_index[n]>=0 || s->h263_aic);

  42.         

  43.     if (!s->h263_aic) {

  44.         if (n < 4)

  45.             level = block[0] * s->y_dc_scale;

  46.         else

  47.             level = block[0] * s->c_dc_scale;

  48.         qadd = (qscale - 1) | 1;

  49.     }else{

  50.         qadd = 0;

  51.         level= block[0];

  52.     }

  53.     if(s->ac_pred)

  54.         nCoeffs=63;

  55.     else

  56.         nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];

  57. //printf("%d %d  ", qmul, qadd);

  58. asm volatile(

  59. 		"movd %1, %%mm6			\n\t" //qmul

  60. 		"packssdw %%mm6, %%mm6		\n\t"

  61. 		"packssdw %%mm6, %%mm6		\n\t"

  62. 		"movd %2, %%mm5			\n\t" //qadd

  63. 		"pxor %%mm7, %%mm7		\n\t"

  64. 		"packssdw %%mm5, %%mm5		\n\t"

  65. 		"packssdw %%mm5, %%mm5		\n\t"

  66. 		"psubw %%mm5, %%mm7		\n\t"

  67. 		"pxor %%mm4, %%mm4		\n\t"

  68. 		".balign 16\n\t"

  69. 		"1:				\n\t"

  70. 		"movq (%0, %3), %%mm0		\n\t"

  71. 		"movq 8(%0, %3), %%mm1		\n\t"

  72. 

  73. 		"pmullw %%mm6, %%mm0		\n\t"

  74. 		"pmullw %%mm6, %%mm1		\n\t"

  75. 

  76. 		"movq (%0, %3), %%mm2		\n\t"

  77. 		"movq 8(%0, %3), %%mm3		\n\t"

  78. 

  79. 		"pcmpgtw %%mm4, %%mm2		\n\t" // block[i] < 0 ? -1 : 0

  80. 		"pcmpgtw %%mm4, %%mm3		\n\t" // block[i] < 0 ? -1 : 0

  81. 

  82. 		"pxor %%mm2, %%mm0		\n\t"

  83. 		"pxor %%mm3, %%mm1		\n\t"

  84. 

  85. 		"paddw %%mm7, %%mm0		\n\t"

  86. 		"paddw %%mm7, %%mm1		\n\t"

  87. 

  88. 		"pxor %%mm0, %%mm2		\n\t"

  89. 		"pxor %%mm1, %%mm3		\n\t"

  90. 

  91. 		"pcmpeqw %%mm7, %%mm0		\n\t" // block[i] == 0 ? -1 : 0

  92. 		"pcmpeqw %%mm7, %%mm1		\n\t" // block[i] == 0 ? -1 : 0

  93. 

  94. 		"pandn %%mm2, %%mm0		\n\t"

  95. 		"pandn %%mm3, %%mm1		\n\t"

  96. 

  97. 		"movq %%mm0, (%0, %3)		\n\t"

  98. 		"movq %%mm1, 8(%0, %3)		\n\t"

  99. 

  100. 		"addl $16, %3			\n\t"

  101. 		"jng 1b				\n\t"

  102. 		::"r" (block+nCoeffs), "g"(qmul), "g" (qadd), "r" (2*(-nCoeffs))

  103. 		: "memory"

  104. 	);

  105.         block[0]= level;

  106. }

  107. 

  108. 

  109. static void dct_unquantize_h263_inter_mmx(MpegEncContext *s,

  110.                                   DCTELEM *block, int n, int qscale)

  111. {

  112.     int qmul, qadd, nCoeffs;

  113. 

  114.     qmul = qscale << 1;

  115.     qadd = (qscale - 1) | 1;

  116. 

  117.     assert(s->block_last_index[n]>=0 || s->h263_aic);

  118.         

  119.     nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];

  120. //printf("%d %d  ", qmul, qadd);

  121. asm volatile(

  122. 		"movd %1, %%mm6			\n\t" //qmul

  123. 		"packssdw %%mm6, %%mm6		\n\t"

  124. 		"packssdw %%mm6, %%mm6		\n\t"

  125. 		"movd %2, %%mm5			\n\t" //qadd

  126. 		"pxor %%mm7, %%mm7		\n\t"

  127. 		"packssdw %%mm5, %%mm5		\n\t"

  128. 		"packssdw %%mm5, %%mm5		\n\t"

  129. 		"psubw %%mm5, %%mm7		\n\t"

  130. 		"pxor %%mm4, %%mm4		\n\t"

  131. 		".balign 16\n\t"

  132. 		"1:				\n\t"

  133. 		"movq (%0, %3), %%mm0		\n\t"

  134. 		"movq 8(%0, %3), %%mm1		\n\t"

  135. 

  136. 		"pmullw %%mm6, %%mm0		\n\t"

  137. 		"pmullw %%mm6, %%mm1		\n\t"

  138. 

  139. 		"movq (%0, %3), %%mm2		\n\t"

  140. 		"movq 8(%0, %3), %%mm3		\n\t"

  141. 

  142. 		"pcmpgtw %%mm4, %%mm2		\n\t" // block[i] < 0 ? -1 : 0

  143. 		"pcmpgtw %%mm4, %%mm3		\n\t" // block[i] < 0 ? -1 : 0

  144. 

  145. 		"pxor %%mm2, %%mm0		\n\t"

  146. 		"pxor %%mm3, %%mm1		\n\t"

  147. 

  148. 		"paddw %%mm7, %%mm0		\n\t"

  149. 		"paddw %%mm7, %%mm1		\n\t"

  150. 

  151. 		"pxor %%mm0, %%mm2		\n\t"

  152. 		"pxor %%mm1, %%mm3		\n\t"

  153. 

  154. 		"pcmpeqw %%mm7, %%mm0		\n\t" // block[i] == 0 ? -1 : 0

  155. 		"pcmpeqw %%mm7, %%mm1		\n\t" // block[i] == 0 ? -1 : 0

  156. 

  157. 		"pandn %%mm2, %%mm0		\n\t"

  158. 		"pandn %%mm3, %%mm1		\n\t"

  159. 

  160. 		"movq %%mm0, (%0, %3)		\n\t"

  161. 		"movq %%mm1, 8(%0, %3)		\n\t"

  162. 

  163. 		"addl $16, %3			\n\t"

  164. 		"jng 1b				\n\t"

  165. 		::"r" (block+nCoeffs), "g"(qmul), "g" (qadd), "r" (2*(-nCoeffs))

  166. 		: "memory"

  167. 	);

  168. }

  169. 

  170. 

  171. /*

  172.   NK:

  173.   Note: looking at PARANOID:

  174.   "enable all paranoid tests for rounding, overflows, etc..."

  175. 

  176. #ifdef PARANOID

  177.                 if (level < -2048 || level > 2047)

  178.                     fprintf(stderr, "unquant error %d %d\n", i, level);

  179. #endif

  180.   We can suppose that result of two multiplications can't be greate of 0xFFFF

  181.   i.e. is 16-bit, so we use here only PMULLW instruction and can avoid

  182.   a complex multiplication.

  183. =====================================================

  184.  Full formula for multiplication of 2 integer numbers

  185.  which are represent as high:low words:

  186.  input: value1 = high1:low1

  187.         value2 = high2:low2

  188.  output: value3 = value1*value2

  189.  value3=high3:low3 (on overflow: modulus 2^32 wrap-around)

  190.  this mean that for 0x123456 * 0x123456 correct result is 0x766cb0ce4

  191.  but this algorithm will compute only 0x66cb0ce4

  192.  this limited by 16-bit size of operands

  193.  ---------------------------------

  194.  tlow1 = high1*low2

  195.  tlow2 = high2*low1

  196.  tlow1 = tlow1 + tlow2

  197.  high3:low3 = low1*low2

  198.  high3 += tlow1

  199. */

  200. static void dct_unquantize_mpeg1_intra_mmx(MpegEncContext *s,

  201.                                      DCTELEM *block, int n, int qscale)

  202. {

  203.     int nCoeffs;

  204.     const uint16_t *quant_matrix;

  205.     int block0;

  206. 

  207.     assert(s->block_last_index[n]>=0);

  208. 

  209.     nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;

  210. 

  211.     if (n < 4) 

  212.         block0 = block[0] * s->y_dc_scale;

  213.     else

  214.         block0 = block[0] * s->c_dc_scale;

  215.     /* XXX: only mpeg1 */

  216.     quant_matrix = s->intra_matrix;

  217. asm volatile(

  218. 		"pcmpeqw %%mm7, %%mm7		\n\t"

  219. 		"psrlw $15, %%mm7		\n\t"

  220. 		"movd %2, %%mm6			\n\t"

  221. 		"packssdw %%mm6, %%mm6		\n\t"

  222. 		"packssdw %%mm6, %%mm6		\n\t"

  223.                 "movl %3, %%eax			\n\t"

  224. 		".balign 16\n\t"

  225. 		"1:				\n\t"

  226. 		"movq (%0, %%eax), %%mm0	\n\t"

  227. 		"movq 8(%0, %%eax), %%mm1	\n\t"

  228. 		"movq (%1, %%eax), %%mm4	\n\t"

  229. 		"movq 8(%1, %%eax), %%mm5	\n\t"

  230. 		"pmullw %%mm6, %%mm4		\n\t" // q=qscale*quant_matrix[i]

  231. 		"pmullw %%mm6, %%mm5		\n\t" // q=qscale*quant_matrix[i]

  232. 		"pxor %%mm2, %%mm2		\n\t"

  233. 		"pxor %%mm3, %%mm3		\n\t"

  234. 		"pcmpgtw %%mm0, %%mm2		\n\t" // block[i] < 0 ? -1 : 0

  235. 		"pcmpgtw %%mm1, %%mm3		\n\t" // block[i] < 0 ? -1 : 0

  236. 		"pxor %%mm2, %%mm0		\n\t"

  237. 		"pxor %%mm3, %%mm1		\n\t"

  238. 		"psubw %%mm2, %%mm0		\n\t" // abs(block[i])

  239. 		"psubw %%mm3, %%mm1		\n\t" // abs(block[i])

  240. 		"pmullw %%mm4, %%mm0		\n\t" // abs(block[i])*q

  241. 		"pmullw %%mm5, %%mm1		\n\t" // abs(block[i])*q

  242. 		"pxor %%mm4, %%mm4		\n\t"

  243. 		"pxor %%mm5, %%mm5		\n\t" // FIXME slow

  244. 		"pcmpeqw (%0, %%eax), %%mm4	\n\t" // block[i] == 0 ? -1 : 0

  245. 		"pcmpeqw 8(%0, %%eax), %%mm5	\n\t" // block[i] == 0 ? -1 : 0

  246. 		"psraw $3, %%mm0		\n\t"

  247. 		"psraw $3, %%mm1		\n\t"

  248. 		"psubw %%mm7, %%mm0		\n\t"

  249. 		"psubw %%mm7, %%mm1		\n\t"

  250. 		"por %%mm7, %%mm0		\n\t"

  251. 		"por %%mm7, %%mm1		\n\t"

  252. 		"pxor %%mm2, %%mm0		\n\t"

  253. 		"pxor %%mm3, %%mm1		\n\t"

  254. 		"psubw %%mm2, %%mm0		\n\t"

  255. 		"psubw %%mm3, %%mm1		\n\t"

  256. 		"pandn %%mm0, %%mm4		\n\t"

  257. 		"pandn %%mm1, %%mm5		\n\t"

  258. 		"movq %%mm4, (%0, %%eax)	\n\t"

  259. 		"movq %%mm5, 8(%0, %%eax)	\n\t"

  260. 

  261. 		"addl $16, %%eax		\n\t"

  262. 		"js 1b				\n\t"

  263. 		::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)

  264. 		: "%eax", "memory"

  265. 	);    

  266.     block[0]= block0;

  267. }

  268. 

  269. static void dct_unquantize_mpeg1_inter_mmx(MpegEncContext *s,

  270.                                      DCTELEM *block, int n, int qscale)

  271. {

  272.     int nCoeffs;

  273.     const uint16_t *quant_matrix;

  274. 

  275.     assert(s->block_last_index[n]>=0);

  276. 

  277.     nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ]+1;

  278. 

  279.         quant_matrix = s->inter_matrix;

  280. asm volatile(

  281. 		"pcmpeqw %%mm7, %%mm7		\n\t"

  282. 		"psrlw $15, %%mm7		\n\t"

  283. 		"movd %2, %%mm6			\n\t"

  284. 		"packssdw %%mm6, %%mm6		\n\t"

  285. 		"packssdw %%mm6, %%mm6		\n\t"

  286.                 "movl %3, %%eax			\n\t"

  287. 		".balign 16\n\t"

  288. 		"1:				\n\t"

  289. 		"movq (%0, %%eax), %%mm0	\n\t"

  290. 		"movq 8(%0, %%eax), %%mm1	\n\t"

  291. 		"movq (%1, %%eax), %%mm4	\n\t"

  292. 		"movq 8(%1, %%eax), %%mm5	\n\t"

  293. 		"pmullw %%mm6, %%mm4		\n\t" // q=qscale*quant_matrix[i]

  294. 		"pmullw %%mm6, %%mm5		\n\t" // q=qscale*quant_matrix[i]

  295. 		"pxor %%mm2, %%mm2		\n\t"

  296. 		"pxor %%mm3, %%mm3		\n\t"

  297. 		"pcmpgtw %%mm0, %%mm2		\n\t" // block[i] < 0 ? -1 : 0

  298. 		"pcmpgtw %%mm1, %%mm3		\n\t" // block[i] < 0 ? -1 : 0

  299. 		"pxor %%mm2, %%mm0		\n\t"

  300. 		"pxor %%mm3, %%mm1		\n\t"

  301. 		"psubw %%mm2, %%mm0		\n\t" // abs(block[i])

  302. 		"psubw %%mm3, %%mm1		\n\t" // abs(block[i])

  303. 		"paddw %%mm0, %%mm0		\n\t" // abs(block[i])*2

  304. 		"paddw %%mm1, %%mm1		\n\t" // abs(block[i])*2

  305. 		"paddw %%mm7, %%mm0		\n\t" // abs(block[i])*2 + 1

  306. 		"paddw %%mm7, %%mm1		\n\t" // abs(block[i])*2 + 1

  307. 		"pmullw %%mm4, %%mm0		\n\t" // (abs(block[i])*2 + 1)*q

  308. 		"pmullw %%mm5, %%mm1		\n\t" // (abs(block[i])*2 + 1)*q

  309. 		"pxor %%mm4, %%mm4		\n\t"

  310. 		"pxor %%mm5, %%mm5		\n\t" // FIXME slow

  311. 		"pcmpeqw (%0, %%eax), %%mm4	\n\t" // block[i] == 0 ? -1 : 0

  312. 		"pcmpeqw 8(%0, %%eax), %%mm5	\n\t" // block[i] == 0 ? -1 : 0

  313. 		"psraw $4, %%mm0		\n\t"

  314. 		"psraw $4, %%mm1		\n\t"

  315. 		"psubw %%mm7, %%mm0		\n\t"

  316. 		"psubw %%mm7, %%mm1		\n\t"

  317. 		"por %%mm7, %%mm0		\n\t"

  318. 		"por %%mm7, %%mm1		\n\t"

  319. 		"pxor %%mm2, %%mm0		\n\t"

  320. 		"pxor %%mm3, %%mm1		\n\t"

  321. 		"psubw %%mm2, %%mm0		\n\t"

  322. 		"psubw %%mm3, %%mm1		\n\t"

  323. 		"pandn %%mm0, %%mm4		\n\t"

  324. 		"pandn %%mm1, %%mm5		\n\t"

  325. 		"movq %%mm4, (%0, %%eax)	\n\t"

  326. 		"movq %%mm5, 8(%0, %%eax)	\n\t"

  327. 

  328. 		"addl $16, %%eax		\n\t"

  329. 		"js 1b				\n\t"

  330. 		::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)

  331. 		: "%eax", "memory"

  332. 	);

  333. }

  334. 

  335. static void dct_unquantize_mpeg2_intra_mmx(MpegEncContext *s,

  336.                                      DCTELEM *block, int n, int qscale)

  337. {

  338.     int nCoeffs;

  339.     const uint16_t *quant_matrix;

  340.     int block0;

  341.     

  342.     assert(s->block_last_index[n]>=0);

  343. 

  344.     if(s->alternate_scan) nCoeffs= 63; //FIXME

  345.     else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];

  346. 

  347.     if (n < 4) 

  348.         block0 = block[0] * s->y_dc_scale;

  349.     else

  350.         block0 = block[0] * s->c_dc_scale;

  351.     quant_matrix = s->intra_matrix;

  352. asm volatile(

  353. 		"pcmpeqw %%mm7, %%mm7		\n\t"

  354. 		"psrlw $15, %%mm7		\n\t"

  355. 		"movd %2, %%mm6			\n\t"

  356. 		"packssdw %%mm6, %%mm6		\n\t"

  357. 		"packssdw %%mm6, %%mm6		\n\t"

  358.                 "movl %3, %%eax			\n\t"

  359. 		".balign 16\n\t"

  360. 		"1:				\n\t"

  361. 		"movq (%0, %%eax), %%mm0	\n\t"

  362. 		"movq 8(%0, %%eax), %%mm1	\n\t"

  363. 		"movq (%1, %%eax), %%mm4	\n\t"

  364. 		"movq 8(%1, %%eax), %%mm5	\n\t"

  365. 		"pmullw %%mm6, %%mm4		\n\t" // q=qscale*quant_matrix[i]

  366. 		"pmullw %%mm6, %%mm5		\n\t" // q=qscale*quant_matrix[i]

  367. 		"pxor %%mm2, %%mm2		\n\t"

  368. 		"pxor %%mm3, %%mm3		\n\t"

  369. 		"pcmpgtw %%mm0, %%mm2		\n\t" // block[i] < 0 ? -1 : 0

  370. 		"pcmpgtw %%mm1, %%mm3		\n\t" // block[i] < 0 ? -1 : 0

  371. 		"pxor %%mm2, %%mm0		\n\t"

  372. 		"pxor %%mm3, %%mm1		\n\t"

  373. 		"psubw %%mm2, %%mm0		\n\t" // abs(block[i])

  374. 		"psubw %%mm3, %%mm1		\n\t" // abs(block[i])

  375. 		"pmullw %%mm4, %%mm0		\n\t" // abs(block[i])*q

  376. 		"pmullw %%mm5, %%mm1		\n\t" // abs(block[i])*q

  377. 		"pxor %%mm4, %%mm4		\n\t"

  378. 		"pxor %%mm5, %%mm5		\n\t" // FIXME slow

  379. 		"pcmpeqw (%0, %%eax), %%mm4	\n\t" // block[i] == 0 ? -1 : 0

  380. 		"pcmpeqw 8(%0, %%eax), %%mm5	\n\t" // block[i] == 0 ? -1 : 0

  381. 		"psraw $3, %%mm0		\n\t"

  382. 		"psraw $3, %%mm1		\n\t"

  383. 		"pxor %%mm2, %%mm0		\n\t"

  384. 		"pxor %%mm3, %%mm1		\n\t"

  385. 		"psubw %%mm2, %%mm0		\n\t"

  386. 		"psubw %%mm3, %%mm1		\n\t"

  387. 		"pandn %%mm0, %%mm4		\n\t"

  388. 		"pandn %%mm1, %%mm5		\n\t"

  389. 		"movq %%mm4, (%0, %%eax)	\n\t"

  390. 		"movq %%mm5, 8(%0, %%eax)	\n\t"

  391. 

  392. 		"addl $16, %%eax		\n\t"

  393. 		"jng 1b				\n\t"

  394. 		::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "g" (-2*nCoeffs)

  395. 		: "%eax", "memory"

  396. 	);    

  397.     block[0]= block0;

  398.         //Note, we dont do mismatch control for intra as errors cannot accumulate

  399. }

  400. 

  401. static void dct_unquantize_mpeg2_inter_mmx(MpegEncContext *s,

  402.                                      DCTELEM *block, int n, int qscale)

  403. {

  404.     int nCoeffs;

  405.     const uint16_t *quant_matrix;

  406.     

  407.     assert(s->block_last_index[n]>=0);

  408. 

  409.     if(s->alternate_scan) nCoeffs= 63; //FIXME

  410.     else nCoeffs= s->intra_scantable.raster_end[ s->block_last_index[n] ];

  411. 

  412.         quant_matrix = s->inter_matrix;

  413. asm volatile(

  414. 		"pcmpeqw %%mm7, %%mm7		\n\t"

  415.                 "psrlq $48, %%mm7		\n\t"

  416. 		"movd %2, %%mm6			\n\t"

  417. 		"packssdw %%mm6, %%mm6		\n\t"

  418. 		"packssdw %%mm6, %%mm6		\n\t"

  419.                 "movl %3, %%eax			\n\t"

  420. 		".balign 16\n\t"

  421. 		"1:				\n\t"

  422. 		"movq (%0, %%eax), %%mm0	\n\t"

  423. 		"movq 8(%0, %%eax), %%mm1	\n\t"

  424. 		"movq (%1, %%eax), %%mm4	\n\t"

  425. 		"movq 8(%1, %%eax), %%mm5	\n\t"

  426. 		"pmullw %%mm6, %%mm4		\n\t" // q=qscale*quant_matrix[i]

  427. 		"pmullw %%mm6, %%mm5		\n\t" // q=qscale*quant_matrix[i]

  428. 		"pxor %%mm2, %%mm2		\n\t"

  429. 		"pxor %%mm3, %%mm3		\n\t"

  430. 		"pcmpgtw %%mm0, %%mm2		\n\t" // block[i] < 0 ? -1 : 0

  431. 		"pcmpgtw %%mm1, %%mm3		\n\t" // block[i] < 0 ? -1 : 0

  432. 		"pxor %%mm2, %%mm0		\n\t"

  433. 		"pxor %%mm3, %%mm1		\n\t"

  434. 		"psubw %%mm2, %%mm0		\n\t" // abs(block[i])

  435. 		"psubw %%mm3, %%mm1		\n\t" // abs(block[i])

  436. 		"paddw %%mm0, %%mm0		\n\t" // abs(block[i])*2

  437. 		"paddw %%mm1, %%mm1		\n\t" // abs(block[i])*2

  438. 		"pmullw %%mm4, %%mm0		\n\t" // abs(block[i])*2*q

  439. 		"pmullw %%mm5, %%mm1		\n\t" // abs(block[i])*2*q

  440. 		"paddw %%mm4, %%mm0		\n\t" // (abs(block[i])*2 + 1)*q

  441. 		"paddw %%mm5, %%mm1		\n\t" // (abs(block[i])*2 + 1)*q

  442. 		"pxor %%mm4, %%mm4		\n\t"

  443. 		"pxor %%mm5, %%mm5		\n\t" // FIXME slow

  444. 		"pcmpeqw (%0, %%eax), %%mm4	\n\t" // block[i] == 0 ? -1 : 0

  445. 		"pcmpeqw 8(%0, %%eax), %%mm5	\n\t" // block[i] == 0 ? -1 : 0

  446. 		"psrlw $4, %%mm0		\n\t"

  447. 		"psrlw $4, %%mm1		\n\t"

  448. 		"pxor %%mm2, %%mm0		\n\t"

  449. 		"pxor %%mm3, %%mm1		\n\t"

  450. 		"psubw %%mm2, %%mm0		\n\t"

  451. 		"psubw %%mm3, %%mm1		\n\t"

  452. 		"pandn %%mm0, %%mm4		\n\t"

  453. 		"pandn %%mm1, %%mm5		\n\t"

  454.                 "pxor %%mm4, %%mm7		\n\t"

  455.                 "pxor %%mm5, %%mm7		\n\t"

  456. 		"movq %%mm4, (%0, %%eax)	\n\t"

  457. 		"movq %%mm5, 8(%0, %%eax)	\n\t"

  458. 

  459. 		"addl $16, %%eax		\n\t"

  460. 		"jng 1b				\n\t"

  461.                 "movd 124(%0, %3), %%mm0	\n\t"

  462.                 "movq %%mm7, %%mm6		\n\t"

  463.                 "psrlq $32, %%mm7		\n\t"

  464.                 "pxor %%mm6, %%mm7		\n\t"

  465.                 "movq %%mm7, %%mm6		\n\t"

  466.                 "psrlq $16, %%mm7		\n\t"

  467.                 "pxor %%mm6, %%mm7		\n\t"

  468.                 "pslld $31, %%mm7		\n\t"

  469.                 "psrlq $15, %%mm7		\n\t"

  470.                 "pxor %%mm7, %%mm0		\n\t"

  471.                 "movd %%mm0, 124(%0, %3)	\n\t"

  472.                 

  473. 		::"r" (block+nCoeffs), "r"(quant_matrix+nCoeffs), "g" (qscale), "r" (-2*nCoeffs)

  474. 		: "%eax", "memory"

  475. 	);

  476. }

  477. 

  478. /* draw the edges of width 'w' of an image of size width, height 

  479.    this mmx version can only handle w==8 || w==16 */

  480. static void draw_edges_mmx(uint8_t *buf, int wrap, int width, int height, int w)

  481. {

  482.     uint8_t *ptr, *last_line;

  483.     int i;

  484. 

  485.     last_line = buf + (height - 1) * wrap;

  486.     /* left and right */

  487.     ptr = buf;

  488.     if(w==8)

  489.     {

  490. 	asm volatile(

  491. 		"1:				\n\t"

  492. 		"movd (%0), %%mm0		\n\t"

  493. 		"punpcklbw %%mm0, %%mm0		\n\t" 

  494. 		"punpcklwd %%mm0, %%mm0		\n\t"

  495. 		"punpckldq %%mm0, %%mm0		\n\t"

  496. 		"movq %%mm0, -8(%0)		\n\t"

  497. 		"movq -8(%0, %2), %%mm1		\n\t"

  498. 		"punpckhbw %%mm1, %%mm1		\n\t"

  499. 		"punpckhwd %%mm1, %%mm1		\n\t"

  500. 		"punpckhdq %%mm1, %%mm1		\n\t"

  501. 		"movq %%mm1, (%0, %2)		\n\t"

  502. 		"addl %1, %0			\n\t"

  503. 		"cmpl %3, %0			\n\t"

  504. 		" jb 1b				\n\t"

  505. 		: "+r" (ptr)

  506. 		: "r" (wrap), "r" (width), "r" (ptr + wrap*height)

  507. 	);

  508.     }

  509.     else

  510.     {

  511. 	asm volatile(

  512. 		"1:				\n\t"

  513. 		"movd (%0), %%mm0		\n\t"

  514. 		"punpcklbw %%mm0, %%mm0		\n\t" 

  515. 		"punpcklwd %%mm0, %%mm0		\n\t"

  516. 		"punpckldq %%mm0, %%mm0		\n\t"

  517. 		"movq %%mm0, -8(%0)		\n\t"

  518. 		"movq %%mm0, -16(%0)		\n\t"

  519. 		"movq -8(%0, %2), %%mm1		\n\t"

  520. 		"punpckhbw %%mm1, %%mm1		\n\t"

  521. 		"punpckhwd %%mm1, %%mm1		\n\t"

  522. 		"punpckhdq %%mm1, %%mm1		\n\t"

  523. 		"movq %%mm1, (%0, %2)		\n\t"

  524. 		"movq %%mm1, 8(%0, %2)		\n\t"

  525. 		"addl %1, %0			\n\t"

  526. 		"cmpl %3, %0			\n\t"

  527. 		" jb 1b				\n\t"		

  528. 		: "+r" (ptr)

  529. 		: "r" (wrap), "r" (width), "r" (ptr + wrap*height)

  530. 	);

  531.     }

  532.     

  533.     for(i=0;i<w;i+=4) {

  534.         /* top and bottom (and hopefully also the corners) */

  535. 	ptr= buf - (i + 1) * wrap - w;

  536. 	asm volatile(

  537. 		"1:				\n\t"

  538. 		"movq (%1, %0), %%mm0		\n\t"

  539. 		"movq %%mm0, (%0)		\n\t"

  540. 		"movq %%mm0, (%0, %2)		\n\t"

  541. 		"movq %%mm0, (%0, %2, 2)	\n\t"

  542. 		"movq %%mm0, (%0, %3)		\n\t"

  543. 		"addl $8, %0			\n\t"

  544. 		"cmpl %4, %0			\n\t"

  545. 		" jb 1b				\n\t"

  546. 		: "+r" (ptr)

  547. 		: "r" ((int)buf - (int)ptr - w), "r" (-wrap), "r" (-wrap*3), "r" (ptr+width+2*w)

  548. 	);

  549. 	ptr= last_line + (i + 1) * wrap - w;

  550. 	asm volatile(

  551. 		"1:				\n\t"

  552. 		"movq (%1, %0), %%mm0		\n\t"

  553. 		"movq %%mm0, (%0)		\n\t"

  554. 		"movq %%mm0, (%0, %2)		\n\t"

  555. 		"movq %%mm0, (%0, %2, 2)	\n\t"

  556. 		"movq %%mm0, (%0, %3)		\n\t"

  557. 		"addl $8, %0			\n\t"

  558. 		"cmpl %4, %0			\n\t"

  559. 		" jb 1b				\n\t"

  560. 		: "+r" (ptr)

  561. 		: "r" ((int)last_line - (int)ptr - w), "r" (wrap), "r" (wrap*3), "r" (ptr+width+2*w)

  562. 	);

  563.     }

  564. }

  565. 

  566. static void  denoise_dct_mmx(MpegEncContext *s, DCTELEM *block){

  567.     const int intra= s->mb_intra;

  568.     int *sum= s->dct_error_sum[intra];

  569.     uint16_t *offset= s->dct_offset[intra];

  570. 

  571.     s->dct_count[intra]++;

  572. 

  573.     asm volatile(

  574.         "pxor %%mm7, %%mm7		\n\t"

  575.         "1:				\n\t"

  576.         "pxor %%mm0, %%mm0		\n\t"

  577.         "pxor %%mm1, %%mm1		\n\t"

  578.         "movq (%0), %%mm2		\n\t"

  579.         "movq 8(%0), %%mm3		\n\t"

  580.         "pcmpgtw %%mm2, %%mm0		\n\t"

  581.         "pcmpgtw %%mm3, %%mm1		\n\t"

  582.         "pxor %%mm0, %%mm2		\n\t"

  583.         "pxor %%mm1, %%mm3		\n\t"

  584.         "psubw %%mm0, %%mm2		\n\t"

  585.         "psubw %%mm1, %%mm3		\n\t"

  586.         "movq %%mm2, %%mm4		\n\t"

  587.         "movq %%mm3, %%mm5		\n\t"

  588.         "psubusw (%2), %%mm2		\n\t"

  589.         "psubusw 8(%2), %%mm3		\n\t"

  590.         "pxor %%mm0, %%mm2		\n\t"

  591.         "pxor %%mm1, %%mm3		\n\t"

  592.         "psubw %%mm0, %%mm2		\n\t"

  593.         "psubw %%mm1, %%mm3		\n\t"

  594.         "movq %%mm2, (%0)		\n\t"

  595.         "movq %%mm3, 8(%0)		\n\t"

  596.         "movq %%mm4, %%mm2		\n\t"

  597.         "movq %%mm5, %%mm3		\n\t"

  598.         "punpcklwd %%mm7, %%mm4		\n\t"

  599.         "punpckhwd %%mm7, %%mm2		\n\t"

  600.         "punpcklwd %%mm7, %%mm5		\n\t"

  601.         "punpckhwd %%mm7, %%mm3		\n\t"

  602.         "paddd (%1), %%mm4		\n\t"

  603.         "paddd 8(%1), %%mm2		\n\t"

  604.         "paddd 16(%1), %%mm5		\n\t"

  605.         "paddd 24(%1), %%mm3		\n\t"

  606.         "movq %%mm4, (%1)		\n\t"

  607.         "movq %%mm2, 8(%1)		\n\t"

  608.         "movq %%mm5, 16(%1)		\n\t"

  609.         "movq %%mm3, 24(%1)		\n\t"

  610.         "addl $16, %0			\n\t"

  611.         "addl $32, %1			\n\t"

  612.         "addl $16, %2			\n\t"

  613.         "cmpl %3, %0			\n\t"

  614.             " jb 1b			\n\t"

  615.         : "+r" (block), "+r" (sum), "+r" (offset)

  616.         : "r"(block+64)

  617.     );

  618. }

  619. 

  620. static void  denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){

  621.     const int intra= s->mb_intra;

  622.     int *sum= s->dct_error_sum[intra];

  623.     uint16_t *offset= s->dct_offset[intra];

  624. 

  625.     s->dct_count[intra]++;

  626. 

  627.     asm volatile(

  628.         "pxor %%xmm7, %%xmm7		\n\t"

  629.         "1:				\n\t"

  630.         "pxor %%xmm0, %%xmm0		\n\t"

  631.         "pxor %%xmm1, %%xmm1		\n\t"

  632.         "movdqa (%0), %%xmm2		\n\t"

  633.         "movdqa 16(%0), %%xmm3		\n\t"

  634.         "pcmpgtw %%xmm2, %%xmm0		\n\t"

  635.         "pcmpgtw %%xmm3, %%xmm1		\n\t"

  636.         "pxor %%xmm0, %%xmm2		\n\t"

  637.         "pxor %%xmm1, %%xmm3		\n\t"

  638.         "psubw %%xmm0, %%xmm2		\n\t"

  639.         "psubw %%xmm1, %%xmm3		\n\t"

  640.         "movdqa %%xmm2, %%xmm4		\n\t"

  641.         "movdqa %%xmm3, %%xmm5		\n\t"

  642.         "psubusw (%2), %%xmm2		\n\t"

  643.         "psubusw 16(%2), %%xmm3		\n\t"

  644.         "pxor %%xmm0, %%xmm2		\n\t"

  645.         "pxor %%xmm1, %%xmm3		\n\t"

  646.         "psubw %%xmm0, %%xmm2		\n\t"

  647.         "psubw %%xmm1, %%xmm3		\n\t"

  648.         "movdqa %%xmm2, (%0)		\n\t"

  649.         "movdqa %%xmm3, 16(%0)		\n\t"

  650.         "movdqa %%xmm4, %%xmm6		\n\t"

  651.         "movdqa %%xmm5, %%xmm0		\n\t"

  652.         "punpcklwd %%xmm7, %%xmm4	\n\t"

  653.         "punpckhwd %%xmm7, %%xmm6	\n\t"

  654.         "punpcklwd %%xmm7, %%xmm5	\n\t"

  655.         "punpckhwd %%xmm7, %%xmm0	\n\t"

  656.         "paddd (%1), %%xmm4		\n\t"

  657.         "paddd 16(%1), %%xmm6		\n\t"

  658.         "paddd 32(%1), %%xmm5		\n\t"

  659.         "paddd 48(%1), %%xmm0		\n\t"

  660.         "movdqa %%xmm4, (%1)		\n\t"

  661.         "movdqa %%xmm6, 16(%1)		\n\t"

  662.         "movdqa %%xmm5, 32(%1)		\n\t"

  663.         "movdqa %%xmm0, 48(%1)		\n\t"

  664.         "addl $32, %0			\n\t"

  665.         "addl $64, %1			\n\t"

  666.         "addl $32, %2			\n\t"

  667.         "cmpl %3, %0			\n\t"

  668.             " jb 1b			\n\t"

  669.         : "+r" (block), "+r" (sum), "+r" (offset)

  670.         : "r"(block+64)

  671.     );

  672. }

  673. 

  674. #undef HAVE_MMX2

  675. #define RENAME(a) a ## _MMX

  676. #define RENAMEl(a) a ## _mmx

  677. #include "mpegvideo_mmx_template.c"

  678. 

  679. #define HAVE_MMX2

  680. #undef RENAME

  681. #undef RENAMEl

  682. #define RENAME(a) a ## _MMX2

  683. #define RENAMEl(a) a ## _mmx2

  684. #include "mpegvideo_mmx_template.c"

  685. 

  686. #undef RENAME

  687. #undef RENAMEl

  688. #define RENAME(a) a ## _SSE2

  689. #define RENAMEl(a) a ## _sse2

  690. #include "mpegvideo_mmx_template.c"

  691. 

  692. void MPV_common_init_mmx(MpegEncContext *s)

  693. {

  694.     if (mm_flags & MM_MMX) {

  695.         const int dct_algo = s->avctx->dct_algo;

  696.         

  697.         s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_mmx;

  698.         s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_mmx;

  699.         s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_mmx;

  700.         s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_mmx;

  701.         s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_mmx;

  702.         s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_mmx;

  703. 

  704.         draw_edges = draw_edges_mmx;

  705.         

  706.         if (mm_flags & MM_SSE2) {

  707. 	    s->denoise_dct= denoise_dct_sse2;

  708. 	} else {

  709.     	    s->denoise_dct= denoise_dct_mmx;

  710. 	}

  711. 

  712.         if(dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX){

  713.             if(mm_flags & MM_SSE2){

  714.                 s->dct_quantize= dct_quantize_SSE2;

  715.             } else if(mm_flags & MM_MMXEXT){

  716.                 s->dct_quantize= dct_quantize_MMX2;

  717.             } else {

  718.                 s->dct_quantize= dct_quantize_MMX;

  719.             }

  720.         }

  721.     }

  722. }