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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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9
3rdparty/libwebp/utils/utils.c vendored
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@@ -19,7 +19,8 @@ extern "C" {
//------------------------------------------------------------------------------
// Checked memory allocation
static int CheckSizeArguments(uint64_t nmemb, size_t size) {
// Returns 0 in case of overflow of nmemb * size.
static int CheckSizeArgumentsOverflow(uint64_t nmemb, size_t size) {
const uint64_t total_size = nmemb * size;
if (nmemb == 0) return 1;
if ((uint64_t)size > WEBP_MAX_ALLOCABLE_MEMORY / nmemb) return 0;
@@ -28,12 +29,14 @@ static int CheckSizeArguments(uint64_t nmemb, size_t size) {
}
void* WebPSafeMalloc(uint64_t nmemb, size_t size) {
if (!CheckSizeArguments(nmemb, size)) return NULL;
if (!CheckSizeArgumentsOverflow(nmemb, size)) return NULL;
assert(nmemb * size > 0);
return malloc((size_t)(nmemb * size));
}
void* WebPSafeCalloc(uint64_t nmemb, size_t size) {
if (!CheckSizeArguments(nmemb, size)) return NULL;
if (!CheckSizeArgumentsOverflow(nmemb, size)) return NULL;
assert(nmemb * size > 0);
return calloc((size_t)nmemb, size);
}