diff options
Diffstat (limited to 'Source/WebCore/html/HTMLCanvasElement.cpp')
-rw-r--r-- | Source/WebCore/html/HTMLCanvasElement.cpp | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/Source/WebCore/html/HTMLCanvasElement.cpp b/Source/WebCore/html/HTMLCanvasElement.cpp index 681fb93ca..143d33475 100644 --- a/Source/WebCore/html/HTMLCanvasElement.cpp +++ b/Source/WebCore/html/HTMLCanvasElement.cpp @@ -443,6 +443,22 @@ bool HTMLCanvasElement::shouldAccelerate(const IntSize& size) const #endif } +bool HTMLCanvasElement::shouldDefer() const +{ +#if USE(SKIA) + if (m_context && !m_context->is2d()) + return false; + + Settings* settings = document()->settings(); + if (!settings || !settings->deferred2dCanvasEnabled()) + return false; + + return true; +#else + return false; +#endif +} + void HTMLCanvasElement::createImageBuffer() const { ASSERT(!m_imageBuffer); @@ -471,7 +487,8 @@ void HTMLCanvasElement::createImageBuffer() const #else Unaccelerated; #endif - m_imageBuffer = ImageBuffer::create(bufferSize, ColorSpaceDeviceRGB, renderingMode); + DeferralMode deferralMode = shouldDefer() ? Deferred : NonDeferred; + m_imageBuffer = ImageBuffer::create(bufferSize, ColorSpaceDeviceRGB, renderingMode, deferralMode); if (!m_imageBuffer) return; m_imageBuffer->context()->scale(FloatSize(bufferSize.width() / logicalSize.width(), bufferSize.height() / logicalSize.height())); |