image-rendering: -webkit-optimize-contrast not working for background images
https://bugs.webkit.org/show_bug.cgi?id=97991
Reviewed by Darin Adler.
Source/WebCore:
Don't equate "pixelated" and "crisp-edges" values for image-rendering with low
quality scaling; they should map to InterpolationNone, not InterpolationLow.
To support this change ImageQualityController to return a InterpolationQuality
from the renamed chooseInterpolationQuality(). If the returned value is not
InterpolationDefault, set the GraphicsContext image interpolation when drawing
images and image buffers.
Remove the redundant "useLowQualityScale" from
Test: fast/images/image-rendering-interpolation.html
* html/HTMLCanvasElement.cpp:
(WebCore::HTMLCanvasElement::paint):
* html/HTMLCanvasElement.h:
* page/DragController.cpp:
(WebCore::DragController::doImageDrag):
* platform/graphics/GraphicsContext.cpp:
(WebCore::GraphicsContext::drawImage):
(WebCore::GraphicsContext::drawTiledImage):
(WebCore::GraphicsContext::drawImageBuffer):
(WebCore::GraphicsContext::drawConsumingImageBuffer):
(WebCore::InterpolationQualityMaintainer::InterpolationQualityMaintainer): Deleted.
(WebCore::InterpolationQualityMaintainer::~InterpolationQualityMaintainer): Deleted.
* platform/graphics/GraphicsContext.h:
(WebCore::ImagePaintingOptions::ImagePaintingOptions):
(WebCore::ImagePaintingOptions::usesDefaultInterpolation):
(WebCore::InterpolationQualityMaintainer::InterpolationQualityMaintainer):
(WebCore::InterpolationQualityMaintainer::~InterpolationQualityMaintainer):
* platform/graphics/GraphicsTypes.h:
* platform/graphics/ImageBuffer.h:
* platform/graphics/cg/ImageBufferCG.cpp:
(WebCore::ImageBuffer::drawConsuming):
(WebCore::ImageBuffer::draw):
* rendering/ImageQualityController.cpp:
(WebCore::ImageQualityController::interpolationQualityFromStyle):
(WebCore::ImageQualityController::chooseInterpolationQuality):
(WebCore::ImageQualityController::ImageQualityController): Deleted.
(WebCore::ImageQualityController::shouldPaintAtLowQuality): Deleted.
* rendering/ImageQualityController.h:
* rendering/RenderBoxModelObject.cpp:
(WebCore::RenderBoxModelObject::chooseInterpolationQuality):
(WebCore::RenderBoxModelObject::paintFillLayerExtended):
(WebCore::RenderBoxModelObject::shouldPaintAtLowQuality): Deleted.
* rendering/RenderBoxModelObject.h:
* rendering/RenderEmbeddedObject.cpp:
(WebCore::RenderEmbeddedObject::paintSnapshotImage):
* rendering/RenderHTMLCanvas.cpp:
(WebCore::RenderHTMLCanvas::paintReplaced):
* rendering/RenderImage.cpp:
(WebCore::RenderImage::paintIntoRect):
* rendering/RenderSnapshottedPlugIn.cpp:
(WebCore::RenderSnapshottedPlugIn::paintSnapshot):
* rendering/style/RenderStyle.h:
LayoutTests:
* fast/images/image-rendering-interpolation-expected.html: Added.
* fast/images/image-rendering-interpolation.html: Added.
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@195848 268f45cc-cd09-0410-ab3c-d52691b4dbfc
22 files changed
