169513/video_out_dfb.i

   1 typedef unsigned char uint8_t;
   2 typedef struct vo_frame_s vo_frame_t;
   3 struct vo_frame_s {
   4         uint8_t *base[3];
   5 };
   6 typedef struct dfb_frame_s dfb_frame_t;
   7 typedef enum {
   8         MF_NONE = 0x0000000, MF_B = 0x00000001, MF_C = 0x00000002, MF_S =
   9             0x00000004, MF_ALL = 0x00000007
  10 } MixerFlags;
  11 struct dfb_frame_s {
  12         vo_frame_t vo_frame;
  13         int area;
  14         uint8_t *out_plane[3];
  15         MixerFlags mixer_set;
  16 };
  17 static void __mmx_yuy2_be_yuy2(dfb_frame_t * frame)
  18 {
  19         uint8_t *S = frame->vo_frame.base[0];
  20         uint8_t *D = frame->out_plane[0];
  21         int n = frame->area / 4;
  22         __asm__ __volatile__("movq      wmask, %%mm2\n\t"
  23                              "psllw     $8, %%mm2\n\t"
  24                              "pxor      %%mm7, %%mm7\n\t" ".align 16\n" "1:\n\t"
  25                              "movq      (%1), %%mm0\n\t"
  26                              "movq      %%mm0, %%mm1\n\t"
  27                              "pand      wmask, %%mm1\n\t" "testl     $3, %3\n\t"
  28                              "jz        2f\n\t"
  29                              "psubw     proc_table, %%mm1\n\t"
  30                              "psllw     $3, %%mm1\n\t"
  31                              "pmulhw    proc_table+24, %%mm1\n\t"
  32                              "paddw     proc_table+8, %%mm1\n\t"
  33                              "packuswb  %%mm1, %%mm1\n\t"
  34                              "punpcklbw %%mm7, %%mm1\n\t" ".align 8\n" "2:\n\t"
  35                              "pand      %%mm2, %%mm0\n\t" "testl     $4, %3\n\t"
  36                              "jz        3f\n\t" "psrlw     $8, %%mm0\n\t"
  37                              "psubw     proc_table+16, %%mm0\n\t"
  38                              "psllw     $3, %%mm0\n\t"
  39                              "pmulhw    proc_table+32, %%mm0\n\t"
  40                              "paddw     proc_table+16, %%mm0\n\t"
  41                              "packuswb  %%mm0, %%mm0\n\t"
  42                              "punpcklbw %%mm7, %%mm0\n\t"
  43                              "psllw     $8, %%mm0\n\t" ".align 8\n" "3:\n\t"
  44                              "por       %%mm1, %%mm0\n\t"
  45                              "movq      %%mm0, (%0)\n\t" "addl      $8, %0\n\t"
  46                              "addl      $8, %1\n\t" "decl      %2\n\t"
  47                              "jnz       1b\n\t" "emms":"=&D"(D), "=&S"(S),
  48                              "=&c"(n):"q"(frame->mixer_set), "0"(D), "1"(S),
  49                              "2"(n):"memory");
  50 }