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Refactor VP8LHistogram to hide initializations from the user.

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This will make it easier to update some future statistics

Change-Id: I3a3ec64d3c9c53ebcf491007e3a4d916e122c87f
This commit is contained in:
Vincent Rabaud
2025-04-11 16:16:37 +02:00
parent 00338240c1
commit 5225592f6b
4 changed files with 69 additions and 57 deletions
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10
src/enc/histogram_enc.h
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@@ -70,7 +70,11 @@ void VP8LHistogramInit(VP8LHistogram* const p, int palette_code_bits,
int init_arrays);
// Collect all the references into a histogram (without reset)
// The distance modifier function is applied to the distance before
// the histogram is updated. It can be NULL.
void VP8LHistogramStoreRefs(const VP8LBackwardRefs* const refs,
int (*const distance_modifier)(int, int),
int distance_modifier_arg0,
VP8LHistogram* const histo);
// Free the memory allocated for the histogram.
@@ -91,12 +95,6 @@ void VP8LHistogramSetClear(VP8LHistogramSet* const set);
// Special case of VP8LAllocateHistogramSet, with size equals 1.
VP8LHistogram* VP8LAllocateHistogram(int cache_bits);
// Accumulate a token 'v' into a histogram.
void VP8LHistogramAddSinglePixOrCopy(VP8LHistogram* const histo,
const PixOrCopy* const v,
int (*const distance_modifier)(int, int),
int distance_modifier_arg0);
static WEBP_INLINE int VP8LHistogramNumCodes(int palette_code_bits) {
return NUM_LITERAL_CODES + NUM_LENGTH_CODES +
((palette_code_bits > 0) ? (1 << palette_code_bits) : 0);