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SSE2: speed-up some lossless-encoding functions

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optimized: CollectColorRedTransforms, CollectColorBlueTransforms, SubtractGreenFromBlueAndRed

overall effect is sub-1% speed-up, though.

Change-Id: I9cb49af5c56e4c03db417929b0a2cf575d60a5c6
This commit is contained in:
Pascal Massimino
2015-06-24 21:46:40 +00:00
committed by James Zern
parent abcb012841
commit 7017001462
3 changed files with 128 additions and 25 deletions
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7
src/dsp/lossless.h
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@ -144,6 +144,13 @@ extern VP8LCollectColorRedTransformsFunc VP8LCollectColorRedTransforms;
void VP8LTransformColor_C(const VP8LMultipliers* const m,
uint32_t* data, int num_pixels);
void VP8LSubtractGreenFromBlueAndRed_C(uint32_t* argb_data, int num_pixels);
void VP8LCollectColorRedTransforms_C(const uint32_t* argb, int stride,
int tile_width, int tile_height,
int green_to_red, int histo[]);
void VP8LCollectColorBlueTransforms_C(const uint32_t* argb, int stride,
int tile_width, int tile_height,
int green_to_blue, int red_to_blue,
int histo[]);
//------------------------------------------------------------------------------
// Image transforms.