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Convert predictor_enc.c to fixed point

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Also remove the last float in histogram_enc.c

Change-Id: I6f647a5fc6dd34a19292820817472b4462c94f49
This commit is contained in:
Vincent Rabaud
2024-08-29 10:09:39 +02:00
parent 94de6c7fed
commit 2e81017c7a
2 changed files with 51 additions and 45 deletions
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5
src/enc/histogram_enc.c
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@ -1247,9 +1247,10 @@ int VP8LGetHistoImageSymbols(int xsize, int ysize,
// Don't combine the histograms using stochastic and greedy heuristics for
// low-effort compression mode.
if (!low_effort || !entropy_combine) {
const float x = quality / 100.f;
// cubic ramp between 1 and MAX_HISTO_GREEDY:
const int threshold_size = (int)(1 + (x * x * x) * (MAX_HISTO_GREEDY - 1));
const int threshold_size =
(int)(1 + DivRound(quality * quality * quality * (MAX_HISTO_GREEDY - 1),
100 * 100 * 100));
int do_greedy;
if (!HistogramCombineStochastic(image_histo, &num_used, threshold_size,
&do_greedy)) {