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update libwebp up to 0.3.0

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This commit is contained in:
AoD314
2013-04-02 15:22:10 +04:00
parent db45e04d58
commit 740941c8b8
64 changed files with 5394 additions and 2773 deletions
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15
3rdparty/libwebp/utils/huffman_encode.c vendored
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@@ -138,13 +138,8 @@ static int CompareHuffmanTrees(const void* ptr1, const void* ptr2) {
} else if (t1->total_count_ < t2->total_count_) {
return 1;
} else {
if (t1->value_ < t2->value_) {
return -1;
}
if (t1->value_ > t2->value_) {
return 1;
}
return 0;
assert(t1->value_ != t2->value_);
return (t1->value_ < t2->value_) ? -1 : 1;
}
}
@@ -193,6 +188,10 @@ static int GenerateOptimalTree(const int* const histogram, int histogram_size,
}
}
if (tree_size_orig == 0) { // pretty optimal already!
return 1;
}
// 3 * tree_size is enough to cover all the nodes representing a
// population and all the inserted nodes combining two existing nodes.
// The tree pool needs 2 * (tree_size_orig - 1) entities, and the
@@ -234,7 +233,7 @@ static int GenerateOptimalTree(const int* const histogram, int histogram_size,
tree_pool[tree_pool_size++] = tree[tree_size - 1];
tree_pool[tree_pool_size++] = tree[tree_size - 2];
count = tree_pool[tree_pool_size - 1].total_count_ +
tree_pool[tree_pool_size - 2].total_count_;
tree_pool[tree_pool_size - 2].total_count_;
tree_size -= 2;
{
// Search for the insertion point.