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encoder: switch BPS to 32 instead of 16

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this is a first step to unifying encoding/decoding cache stride
and possibly sharing the prediction functions in dsp/

With this layout, there's a little (~7%) space lost with unused samples.
But no speed change was observed.

Change-Id: I016df8cad41bde5088df3579e6ad65d884ee711e
This commit is contained in:
Pascal Massimino
2014-12-04 09:17:18 +01:00
parent 1b66bbe998
commit 57606047ec
4 changed files with 82 additions and 96 deletions
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22
src/enc/quant.c
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@ -444,15 +444,12 @@ void VP8MakeIntra4Preds(const VP8EncIterator* const it) {
// Quantize
// Layout:
// +----+
// |YYYY| 0
// |YYYY| 4
// |YYYY| 8
// |YYYY| 12
// +----+
// |UUVV| 16
// |UUVV| 20
// +----+
// +----+----+
// |YYYY|UUVV| 0
// |YYYY|UUVV| 4
// |YYYY|....| 8
// |YYYY|....| 12
// +----+----+
const int VP8Scan[16] = { // Luma
0 + 0 * BPS, 4 + 0 * BPS, 8 + 0 * BPS, 12 + 0 * BPS,
@ -1069,7 +1066,12 @@ static void PickBestUV(VP8EncIterator* const it, VP8ModeScore* const rd) {
}
VP8SetIntraUVMode(it, rd->mode_uv);
AddScore(rd, &rd_best);
if (dst != dst0) memcpy(dst0, dst, UV_SIZE);
if (dst != dst0) { // copy 16x8 block if needed
int i;
for (i = 0; i < 8; ++i) {
memcpy(dst0 + i * BPS, dst + i * BPS, 2 * 8 * sizeof(*dst0));
}
}
}
//------------------------------------------------------------------------------