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Bug 705663 - Fix braindead WebGLTexture::HasImageInfoAt - r=jrmuizel

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This commit is contained in:
Benoit Jacob 2011-11-28 14:30:28 -05:00
parent 3cb7574cf1
commit 4cd22aea90
1 changed files with 4 additions and 3 deletions
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7
content/canvas/src/WebGLContext.h
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@ -1087,9 +1087,10 @@ public:
}
bool HasImageInfoAt(size_t level, size_t face) const {
return level <= mMaxLevelWithCustomImages &&
face < mFacesCount &&
ImageInfoAt(level, 0).mIsDefined;
CheckedUint32 checked_index = CheckedUint32(level) * mFacesCount + face;
return checked_index.valid() &&
checked_index.value() < mImageInfos.Length() &&
ImageInfoAt(level, face).mIsDefined;
}
static size_t FaceForTarget(WebGLenum target) {