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MIPS: dspr2: added optimization for function TransformColorBlue

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added new function CollectColorBlueTransforms to C, which calls
TransformColorBlue and it is realized via pointer to function

Change-Id: Ia488b7a7a689223b5d33aae9724afab89b97fced
This commit is contained in:
Djordje Pesut
2015-01-06 09:31:58 +01:00
parent d7c4b02a57
commit 7b16197361
3 changed files with 84 additions and 5 deletions
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25
src/dsp/lossless.c
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@ -1133,14 +1133,11 @@ static void GetBestGreenToRed(
best_tx->green_to_red_ = green_to_red;
}
static float GetPredictionCostCrossColorBlue(
static void CollectColorBlueTransforms(
int tile_x_offset, int tile_y_offset, int all_x_max, int all_y_max,
int xsize, VP8LMultipliers prev_x, VP8LMultipliers prev_y,
int green_to_blue, int red_to_blue, const int accumulated_blue_histo[256],
int xsize, int green_to_blue, int red_to_blue, int* histo,
const uint32_t* const argb) {
int all_y;
int histo[256] = { 0 };
float cur_diff;
for (all_y = tile_y_offset; all_y < all_y_max; ++all_y) {
int all_x;
int ix = all_y * xsize + tile_x_offset;
@ -1148,6 +1145,20 @@ static float GetPredictionCostCrossColorBlue(
++histo[TransformColorBlue(green_to_blue, red_to_blue, argb[ix])];
}
}
}
static float GetPredictionCostCrossColorBlue(
int tile_x_offset, int tile_y_offset, int all_x_max, int all_y_max,
int xsize, VP8LMultipliers prev_x, VP8LMultipliers prev_y,
int green_to_blue, int red_to_blue, const int accumulated_blue_histo[256],
const uint32_t* const argb) {
int histo[256] = { 0 };
float cur_diff;
VP8LCollectColorBlueTransforms(tile_x_offset, tile_y_offset, all_x_max,
all_y_max, xsize, green_to_blue, red_to_blue,
histo, argb);
cur_diff = PredictionCostCrossColor(accumulated_blue_histo, histo);
if ((uint8_t)green_to_blue == prev_x.green_to_blue_) {
cur_diff -= 3; // favor keeping the areas locally similar
@ -1726,6 +1737,8 @@ VP8LConvertFunc VP8LConvertBGRAToRGBA4444;
VP8LConvertFunc VP8LConvertBGRAToRGB565;
VP8LConvertFunc VP8LConvertBGRAToBGR;
VP8LCollectColorBlueTransformsFunc VP8LCollectColorBlueTransforms;
VP8LFastLog2SlowFunc VP8LFastLog2Slow;
VP8LFastLog2SlowFunc VP8LFastSLog2Slow;
@ -1765,6 +1778,8 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8LDspInit(void) {
VP8LConvertBGRAToRGB565 = VP8LConvertBGRAToRGB565_C;
VP8LConvertBGRAToBGR = VP8LConvertBGRAToBGR_C;
VP8LCollectColorBlueTransforms = CollectColorBlueTransforms;
VP8LFastLog2Slow = FastLog2Slow;
VP8LFastSLog2Slow = FastSLog2Slow;