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cherry-pick decoder fix for 64-bit android devices

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This fixes decoders built against clang-3.8 (r11c). Without this change
bad conditional code would be generated causing all calls to
WebPParseHeaders() to return 4 (UNSUPPORTED_FEATURE).

Original fix:
https://android-review.googlesource.com/#/c/196123

Change-Id: Id4b4d84048d347cea110b6cf297ef9ef4fbed323
This commit is contained in:
James Zern 2016-05-02 20:22:05 -07:00
parent 5f95589fae
commit 6235147ed5
1 changed files with 2 additions and 1 deletions
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3
src/dec/webp.c
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@ -415,7 +415,8 @@ static VP8StatusCode ParseHeadersInternal(const uint8_t* data,
} }
VP8StatusCode WebPParseHeaders(WebPHeaderStructure* const headers) { VP8StatusCode WebPParseHeaders(WebPHeaderStructure* const headers) {
VP8StatusCode status; // status is marked volatile as a workaround for a clang-3.8 (aarch64) bug
volatile VP8StatusCode status;
int has_animation = 0; int has_animation = 0;
assert(headers != NULL); assert(headers != NULL);
// fill out headers, ignore width/height/has_alpha. // fill out headers, ignore width/height/has_alpha.