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Refactor histograms in predictors.

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Replace the 2d histograms with uint32_t 1d versions (to avoid
pointer casting and to use the optimized VP8LAddVectorEq).

Change-Id: I90b0fe98390b49e3fd03e3484289571cf7ae6eca
This commit is contained in:
Vincent Rabaud
2024-05-03 22:09:38 +02:00
parent a7aa7525b8
commit a90160e11a
6 changed files with 90 additions and 97 deletions
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12
src/dsp/lossless.h
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@ -155,13 +155,13 @@ extern VP8LTransformColorFunc VP8LTransformColor;
typedef void (*VP8LCollectColorBlueTransformsFunc)(
const uint32_t* argb, int stride,
int tile_width, int tile_height,
int green_to_blue, int red_to_blue, int histo[]);
int green_to_blue, int red_to_blue, uint32_t histo[]);
extern VP8LCollectColorBlueTransformsFunc VP8LCollectColorBlueTransforms;
typedef void (*VP8LCollectColorRedTransformsFunc)(
const uint32_t* argb, int stride,
int tile_width, int tile_height,
int green_to_red, int histo[]);
int green_to_red, uint32_t histo[]);
extern VP8LCollectColorRedTransformsFunc VP8LCollectColorRedTransforms;
// Expose some C-only fallback functions
@ -170,11 +170,11 @@ void VP8LTransformColor_C(const VP8LMultipliers* const m,
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[]);
int green_to_red, uint32_t 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[]);
uint32_t histo[]);
extern VP8LPredictorAddSubFunc VP8LPredictorsSub[16];
extern VP8LPredictorAddSubFunc VP8LPredictorsSub_C[16];
@ -185,8 +185,8 @@ extern VP8LPredictorAddSubFunc VP8LPredictorsSub_C[16];
typedef uint32_t (*VP8LCostFunc)(const uint32_t* population, int length);
typedef uint32_t (*VP8LCostCombinedFunc)(const uint32_t* X, const uint32_t* Y,
int length);
typedef float (*VP8LCombinedShannonEntropyFunc)(const int X[256],
const int Y[256]);
typedef float (*VP8LCombinedShannonEntropyFunc)(const uint32_t X[256],
const uint32_t Y[256]);
extern VP8LCostFunc VP8LExtraCost;
extern VP8LCostCombinedFunc VP8LExtraCostCombined;