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store top Y/U/V samples in packed fashion

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More cache-line friendly than storing them split.

Change-Id: Ifb23cc3518ff1b5c37afe007558d4278868d75ea
This commit is contained in:
skal
2013-06-13 06:01:27 +02:00
parent 068db59e26
commit 86daf77c47
2 changed files with 26 additions and 27 deletions
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23
src/dec/vp8i.h
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@ -193,6 +193,11 @@ typedef struct {
VP8Io io_; // copy of the VP8Io to pass to put()
} VP8ThreadContext;
// Saved top samples, per macroblock. Fits into a cache-line.
typedef struct {
uint8_t y[16], u[8], v[8];
} VP8TopSamples;
//------------------------------------------------------------------------------
// VP8Decoder: the main opaque structure handed over to user
@ -250,17 +255,17 @@ struct VP8Decoder {
#endif
// Boundary data cache and persistent buffers.
uint8_t* intra_t_; // top intra modes values: 4 * mb_w_
uint8_t intra_l_[4]; // left intra modes values
uint8_t* y_t_; // top luma samples: 16 * mb_w_
uint8_t* u_t_, *v_t_; // top u/v samples: 8 * mb_w_ each
uint8_t segment_; // segment of the currently parsed block
uint8_t* intra_t_; // top intra modes values: 4 * mb_w_
uint8_t intra_l_[4]; // left intra modes values
VP8MB* mb_info_; // contextual macroblock info (mb_w_ + 1)
VP8FInfo* f_info_; // filter strength info
uint8_t* yuv_b_; // main block for Y/U/V (size = YUV_SIZE)
uint8_t segment_; // segment of the currently parsed block
VP8TopSamples* yuv_t_; // top y/u/v samples
uint8_t* cache_y_; // macroblock row for storing unfiltered samples
VP8MB* mb_info_; // contextual macroblock info (mb_w_ + 1)
VP8FInfo* f_info_; // filter strength info
uint8_t* yuv_b_; // main block for Y/U/V (size = YUV_SIZE)
uint8_t* cache_y_; // macroblock row for storing unfiltered samples
uint8_t* cache_u_;
uint8_t* cache_v_;
int cache_y_stride_;