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  1. /*
  2.  * Copyright (c) 2009 David Conrad <lessen42@gmail.com>
  3.  *
  4.  * This file is part of FFmpeg.
  5.  *
  6.  * FFmpeg 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 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * FFmpeg 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 FFmpeg; if not, write to the Free Software
  18.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19.  */
  20.  
  21. #include <stdint.h>
  22.  
  23. #include "libavutil/attributes.h"
  24. #include "libavutil/cpu.h"
  25. #include "libavutil/x86/cpu.h"
  26. #include "libavutil/x86/asm.h"
  27. #include "libavcodec/avcodec.h"
  28. #include "libavcodec/dsputil.h"
  29. #include "libavcodec/vp3dsp.h"
  30. #include "config.h"
  31.  
  32. void ff_vp3_idct_put_mmx(uint8_t *dest, int line_size, int16_t *block);
  33. void ff_vp3_idct_add_mmx(uint8_t *dest, int line_size, int16_t *block);
  34.  
  35. void ff_vp3_idct_put_sse2(uint8_t *dest, int line_size, int16_t *block);
  36. void ff_vp3_idct_add_sse2(uint8_t *dest, int line_size, int16_t *block);
  37.  
  38. void ff_vp3_idct_dc_add_mmxext(uint8_t *dest, int line_size,
  39.                                int16_t *block);
  40.  
  41. void ff_vp3_v_loop_filter_mmxext(uint8_t *src, int stride,
  42.                                  int *bounding_values);
  43. void ff_vp3_h_loop_filter_mmxext(uint8_t *src, int stride,
  44.                                  int *bounding_values);
  45.  
  46. #if HAVE_MMX_INLINE
  47.  
  48. #define MOVQ_BFE(regd)                                  \
  49.     __asm__ volatile (                                  \
  50.         "pcmpeqd %%"#regd", %%"#regd"   \n\t"           \
  51.         "paddb   %%"#regd", %%"#regd"   \n\t" ::)
  52.  
  53. #define PAVGBP_MMX_NO_RND(rega, regb, regr,  regc, regd, regp)   \
  54.     "movq  "#rega", "#regr"             \n\t"                    \
  55.     "movq  "#regc", "#regp"             \n\t"                    \
  56.     "pand  "#regb", "#regr"             \n\t"                    \
  57.     "pand  "#regd", "#regp"             \n\t"                    \
  58.     "pxor  "#rega", "#regb"             \n\t"                    \
  59.     "pxor  "#regc", "#regd"             \n\t"                    \
  60.     "pand    %%mm6, "#regb"             \n\t"                    \
  61.     "pand    %%mm6, "#regd"             \n\t"                    \
  62.     "psrlq      $1, "#regb"             \n\t"                    \
  63.     "psrlq      $1, "#regd"             \n\t"                    \
  64.     "paddb "#regb", "#regr"             \n\t"                    \
  65.     "paddb "#regd", "#regp"             \n\t"
  66.  
  67. static void put_vp_no_rnd_pixels8_l2_mmx(uint8_t *dst, const uint8_t *a, const uint8_t *b, ptrdiff_t stride, int h)
  68. {
  69. //    START_TIMER
  70.     MOVQ_BFE(mm6);
  71.     __asm__ volatile(
  72.         "1:                             \n\t"
  73.         "movq   (%1), %%mm0             \n\t"
  74.         "movq   (%2), %%mm1             \n\t"
  75.         "movq   (%1,%4), %%mm2          \n\t"
  76.         "movq   (%2,%4), %%mm3          \n\t"
  77.         PAVGBP_MMX_NO_RND(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
  78.         "movq   %%mm4, (%3)             \n\t"
  79.         "movq   %%mm5, (%3,%4)          \n\t"
  80.  
  81.         "movq   (%1,%4,2), %%mm0        \n\t"
  82.         "movq   (%2,%4,2), %%mm1        \n\t"
  83.         "movq   (%1,%5), %%mm2          \n\t"
  84.         "movq   (%2,%5), %%mm3          \n\t"
  85.         "lea    (%1,%4,4), %1           \n\t"
  86.         "lea    (%2,%4,4), %2           \n\t"
  87.         PAVGBP_MMX_NO_RND(%%mm0, %%mm1, %%mm4,   %%mm2, %%mm3, %%mm5)
  88.         "movq   %%mm4, (%3,%4,2)        \n\t"
  89.         "movq   %%mm5, (%3,%5)          \n\t"
  90.         "lea    (%3,%4,4), %3           \n\t"
  91.         "subl   $4, %0                  \n\t"
  92.         "jnz    1b                      \n\t"
  93.         :"+r"(h), "+r"(a), "+r"(b), "+r"(dst)
  94.         :"r"((x86_reg)stride), "r"((x86_reg)3L*stride)
  95.         :"memory");
  96. //    STOP_TIMER("put_vp_no_rnd_pixels8_l2_mmx")
  97. }
  98. #endif /* HAVE_MMX_INLINE */
  99.  
  100. av_cold void ff_vp3dsp_init_x86(VP3DSPContext *c, int flags)
  101. {
  102.     int cpu_flags = av_get_cpu_flags();
  103.  
  104. #if HAVE_MMX_INLINE
  105.     c->put_no_rnd_pixels_l2 = put_vp_no_rnd_pixels8_l2_mmx;
  106. #endif /* HAVE_MMX_INLINE */
  107.  
  108. #if ARCH_X86_32
  109.     if (EXTERNAL_MMX(cpu_flags)) {
  110.         c->idct_put  = ff_vp3_idct_put_mmx;
  111.         c->idct_add  = ff_vp3_idct_add_mmx;
  112.     }
  113. #endif
  114.  
  115.     if (EXTERNAL_MMXEXT(cpu_flags)) {
  116.         c->idct_dc_add = ff_vp3_idct_dc_add_mmxext;
  117.  
  118.         if (!(flags & CODEC_FLAG_BITEXACT)) {
  119.             c->v_loop_filter = ff_vp3_v_loop_filter_mmxext;
  120.             c->h_loop_filter = ff_vp3_h_loop_filter_mmxext;
  121.         }
  122.     }
  123.  
  124.     if (EXTERNAL_SSE2(cpu_flags)) {
  125.         c->idct_put  = ff_vp3_idct_put_sse2;
  126.         c->idct_add  = ff_vp3_idct_add_sse2;
  127.     }
  128. }
  129.