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few % speedup of lossless encoding

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mostly visible for method 4 and up

Change-Id: I1561d871bc055ec5f7998eb193d927927d3f2add
This commit is contained in:
skal 2013-11-12 00:09:45 +01:00
parent df3649a287
commit ff379db317
1 changed files with 4 additions and 4 deletions
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8
src/enc/backward_references.c
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@ -324,10 +324,10 @@ static int BackwardReferencesHashChain(int xsize, int ysize,
const int ix = VP8LColorCacheGetIndex(&hashers, pixel);
refs->refs[refs->size] = PixOrCopyCreateCacheIdx(ix);
} else {
if (use_color_cache) VP8LColorCacheInsert(&hashers, pixel);
refs->refs[refs->size] = PixOrCopyCreateLiteral(pixel);
}
++refs->size;
if (use_color_cache) VP8LColorCacheInsert(&hashers, pixel);
i++; // Backward reference to be done for next pixel.
len = len2;
offset = offset2;
@ -357,10 +357,10 @@ static int BackwardReferencesHashChain(int xsize, int ysize,
const int ix = VP8LColorCacheGetIndex(&hashers, pixel);
refs->refs[refs->size] = PixOrCopyCreateCacheIdx(ix);
} else {
if (use_color_cache) VP8LColorCacheInsert(&hashers, pixel);
refs->refs[refs->size] = PixOrCopyCreateLiteral(pixel);
}
++refs->size;
if (use_color_cache) VP8LColorCacheInsert(&hashers, pixel);
if (i + 1 < pix_count) {
HashChainInsert(hash_chain, &argb[i], i);
}
@ -577,13 +577,13 @@ static int BackwardReferencesHashChainDistanceOnly(
const int ix = VP8LColorCacheGetIndex(&hashers, argb[i]);
cost_val += GetCacheCost(cost_model, ix) * mul0;
} else {
if (use_color_cache) VP8LColorCacheInsert(&hashers, argb[i]);
cost_val += GetLiteralCost(cost_model, argb[i]) * mul1;
}
if (cost[i] > cost_val) {
cost[i] = (float)cost_val;
dist_array[i] = 1; // only one is inserted.
}
if (use_color_cache) VP8LColorCacheInsert(&hashers, argb[i]);
}
next_symbol: ;
}
@ -675,9 +675,9 @@ static int BackwardReferencesHashChainFollowChosenPath(
const int idx = VP8LColorCacheGetIndex(&hashers, argb[i]);
refs->refs[size] = PixOrCopyCreateCacheIdx(idx);
} else {
if (use_color_cache) VP8LColorCacheInsert(&hashers, argb[i]);
refs->refs[size] = PixOrCopyCreateLiteral(argb[i]);
}
if (use_color_cache) VP8LColorCacheInsert(&hashers, argb[i]);
if (i + 1 < pix_count) {
HashChainInsert(hash_chain, &argb[i], i);
}