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Have a hard-coded value for memset in TrellisQuantizeBlock.

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Change-Id: I1b842bb0cfec9e8559d0f11b3db8fa1bc1c9692f
This commit is contained in:
Vincent Rabaud
2021-08-30 18:50:11 +02:00
parent 934801604e
commit 1a8f0d45d3
1 changed files with 20 additions and 11 deletions
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29
src/enc/quant_enc.c
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@@ -585,6 +585,9 @@ static WEBP_INLINE score_t RDScoreTrellis(int lambda, score_t rate,
return rate * lambda + RD_DISTO_MULT * distortion;
}
// Coefficient type.
enum { TYPE_I16_AC = 0, TYPE_I16_DC = 1, TYPE_CHROMA_A = 2, TYPE_I4_AC = 3 };
static int TrellisQuantizeBlock(const VP8Encoder* const enc,
int16_t in[16], int16_t out[16],
int ctx0, int coeff_type,
@@ -593,7 +596,7 @@ static int TrellisQuantizeBlock(const VP8Encoder* const enc,
const ProbaArray* const probas = enc->proba_.coeffs_[coeff_type];
CostArrayPtr const costs =
(CostArrayPtr)enc->proba_.remapped_costs_[coeff_type];
const int first = (coeff_type == 0) ? 1 : 0;
const int first = (coeff_type == TYPE_I16_AC) ? 1 : 0;
Node nodes[16][NUM_NODES];
ScoreState score_states[2][NUM_NODES];
ScoreState* ss_cur = &SCORE_STATE(0, MIN_DELTA);
@@ -724,8 +727,14 @@ static int TrellisQuantizeBlock(const VP8Encoder* const enc,
}
// Fresh start
memset(in + first, 0, (16 - first) * sizeof(*in));
memset(out + first, 0, (16 - first) * sizeof(*out));
// Beware! We must preserve in[0]/out[0] value for TYPE_I16_AC case.
if (coeff_type == TYPE_I16_AC) {
memset(in + 1, 0, 15 * sizeof(*in));
memset(out + 1, 0, 15 * sizeof(*out));
} else {
memset(in, 0, 16 * sizeof(*in));
memset(out, 0, 16 * sizeof(*out));
}
if (best_path[0] == -1) {
return 0; // skip!
}
@@ -782,9 +791,9 @@ static int ReconstructIntra16(VP8EncIterator* const it,
for (y = 0, n = 0; y < 4; ++y) {
for (x = 0; x < 4; ++x, ++n) {
const int ctx = it->top_nz_[x] + it->left_nz_[y];
const int non_zero =
TrellisQuantizeBlock(enc, tmp[n], rd->y_ac_levels[n], ctx, 0,
&dqm->y1_, dqm->lambda_trellis_i16_);
const int non_zero = TrellisQuantizeBlock(
enc, tmp[n], rd->y_ac_levels[n], ctx, TYPE_I16_AC, &dqm->y1_,
dqm->lambda_trellis_i16_);
it->top_nz_[x] = it->left_nz_[y] = non_zero;
rd->y_ac_levels[n][0] = 0;
nz |= non_zero << n;
@@ -825,7 +834,7 @@ static int ReconstructIntra4(VP8EncIterator* const it,
if (DO_TRELLIS_I4 && it->do_trellis_) {
const int x = it->i4_ & 3, y = it->i4_ >> 2;
const int ctx = it->top_nz_[x] + it->left_nz_[y];
nz = TrellisQuantizeBlock(enc, tmp, levels, ctx, 3, &dqm->y1_,
nz = TrellisQuantizeBlock(enc, tmp, levels, ctx, TYPE_I4_AC, &dqm->y1_,
dqm->lambda_trellis_i4_);
} else {
nz = VP8EncQuantizeBlock(tmp, levels, &dqm->y1_);
@@ -934,9 +943,9 @@ static int ReconstructUV(VP8EncIterator* const it, VP8ModeScore* const rd,
for (y = 0; y < 2; ++y) {
for (x = 0; x < 2; ++x, ++n) {
const int ctx = it->top_nz_[4 + ch + x] + it->left_nz_[4 + ch + y];
const int non_zero =
TrellisQuantizeBlock(enc, tmp[n], rd->uv_levels[n], ctx, 2,
&dqm->uv_, dqm->lambda_trellis_uv_);
const int non_zero = TrellisQuantizeBlock(
enc, tmp[n], rd->uv_levels[n], ctx, TYPE_CHROMA_A, &dqm->uv_,
dqm->lambda_trellis_uv_);
it->top_nz_[4 + ch + x] = it->left_nz_[4 + ch + y] = non_zero;
nz |= non_zero << n;
}