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Bug 1142975 - Check for Present()-caused context loss. - r=kamidphish

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This commit is contained in:
Jeff Gilbert 2015-03-18 19:55:44 -07:00
parent c252976203
commit 7b8e15b12b
1 changed files with 5 additions and 0 deletions
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5
dom/canvas/WebGLContext.cpp
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@ -821,6 +821,11 @@ WebGLContext::SetDimensions(int32_t signedWidth, int32_t signedHeight)
// If we've already drawn, we should commit the current buffer.
PresentScreenBuffer();
if (IsContextLost()) {
GenerateWarning("WebGL context was lost due to swap failure.");
return NS_OK;
}
// ResizeOffscreen scraps the current prod buffer before making a new one.
if (!ResizeBackbuffer(width, height)) {
GenerateWarning("WebGL context failed to resize.");