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introduce VP8EncQuantize2Blocks to quantize two blocks at a time

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No speed diff for now. We might reorder better the instructions later,
to speed things up.

Change-Id: I1949525a0b329c7fd861b8dbea7db4b23d37709c
This commit is contained in:
skal
2014-08-25 13:16:14 -07:00
parent 0b21c30b1a
commit 73d361dd5f
6 changed files with 50 additions and 6 deletions
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10
src/dsp/enc_sse2.c
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@ -929,6 +929,15 @@ static int QuantizeBlockWHT(int16_t in[16], int16_t out[16],
return DoQuantizeBlock(in, out, NULL, mtx);
}
static int Quantize2Blocks(int16_t in[32], int16_t out[32],
const VP8Matrix* const mtx) {
int nz;
const uint16_t* const sharpen = &mtx->sharpen_[0];
nz = DoQuantizeBlock(in + 0 * 16, out + 0 * 16, sharpen, mtx) << 0;
nz |= DoQuantizeBlock(in + 1 * 16, out + 1 * 16, sharpen, mtx) << 1;
return nz;
}
// Forward declaration.
void VP8SetResidualCoeffsSSE2(const int16_t* const coeffs,
VP8Residual* const res);
@ -967,6 +976,7 @@ void VP8EncDspInitSSE2(void) {
#if defined(WEBP_USE_SSE2)
VP8CollectHistogram = CollectHistogram;
VP8EncQuantizeBlock = QuantizeBlock;
VP8EncQuantize2Blocks = Quantize2Blocks;
VP8EncQuantizeBlockWHT = QuantizeBlockWHT;
VP8ITransform = ITransform;
VP8FTransform = FTransform;