Revision 8cfae560 libavcodec/vp8.c
| libavcodec/vp8.c | ||
|---|---|---|
| 1083 | 1083 |
* Optimized for 64-byte cache lines. Inspired by ffh264 prefetch_motion. */ |
| 1084 | 1084 |
static inline void prefetch_motion(VP8Context *s, VP8Macroblock *mb, int mb_x, int mb_y, int x_off, int y_off, int ref) |
| 1085 | 1085 |
{
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if (mb->ref_frame != VP56_FRAME_CURRENT) {
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int mx = mb->mv.x + x_off + 8; |
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int my = mb->mv.y + y_off; |
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uint8_t **src= s->framep[mb->ref_frame]->data; |
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int off= mx + (my + (mb_x&3)*4)*s->linesize + 64; |
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s->dsp.prefetch(src[0]+off, s->linesize, 4); |
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off= (mx>>1) + ((my>>1) + (mb_x&7))*s->uvlinesize + 64; |
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s->dsp.prefetch(src[1]+off, src[2]-src[1], 2); |
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} |
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int mx = mb->mv.x + x_off + 8; |
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int my = mb->mv.y + y_off; |
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uint8_t **src= s->framep[ref]->data; |
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int off= mx + (my + (mb_x&3)*4)*s->linesize + 64; |
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s->dsp.prefetch(src[0]+off, s->linesize, 4); |
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off= (mx>>1) + ((my>>1) + (mb_x&7))*s->uvlinesize + 64; |
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s->dsp.prefetch(src[1]+off, src[2]-src[1], 2); |
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} |
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/** |
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