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introduce FTransform2 to perform two transforms at a time.

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FTransform goes from ~12.0% to 11.5% total CPU time.

Change-Id: Ibcb23155324f4fd8b235563f80668531c781f624
This commit is contained in:
skal
2015-05-18 21:06:15 -07:00
parent aa6065aedd
commit ac76801159
4 changed files with 185 additions and 119 deletions
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7
src/dsp/enc.c
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@ -177,6 +177,11 @@ static void FTransform(const uint8_t* src, const uint8_t* ref, int16_t* out) {
}
}
static void FTransform2(const uint8_t* src, const uint8_t* ref, int16_t* out) {
VP8FTransform(src, ref, out);
VP8FTransform(src + 4, ref + 4, out + 16);
}
static void FTransformWHT(const int16_t* in, int16_t* out) {
// input is 12b signed
int32_t tmp[16];
@ -704,6 +709,7 @@ static void Copy16x8(const uint8_t* src, uint8_t* dst) {
VP8CHisto VP8CollectHistogram;
VP8Idct VP8ITransform;
VP8Fdct VP8FTransform;
VP8Fdct VP8FTransform2;
VP8WHT VP8FTransformWHT;
VP8Intra4Preds VP8EncPredLuma4;
VP8IntraPreds VP8EncPredLuma16;
@ -740,6 +746,7 @@ WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInit(void) {
VP8CollectHistogram = CollectHistogram;
VP8ITransform = ITransform;
VP8FTransform = FTransform;
VP8FTransform2 = FTransform2;
VP8FTransformWHT = FTransformWHT;
VP8EncPredLuma4 = Intra4Preds;
VP8EncPredLuma16 = Intra16Preds;