67 lines
2.8 KiB
Diff
67 lines
2.8 KiB
Diff
From b2a2856f9102515e9a9a048655f08d9c8152b179 Mon Sep 17 00:00:00 2001
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From: Allan Sandfeld Jensen <allan.jensen@digia.com>
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Date: Mon, 9 Sep 2013 15:00:54 +0200
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Subject: [PATCH 4/9] [Qt] Images scaled poorly on composited canvas
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https://bugs.webkit.org/show_bug.cgi?id=120632
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Reviewed by Jocelyn Turcotte.
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Explicitly set a imageInterpolationQuality on the TextureMapper, because
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InterpolationDefault may be interpreted differently by nested GraphicsContexts.
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* WebCoreSupport/TextureMapperLayerClientQt.cpp:
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(TextureMapperLayerClientQt::renderCompositedLayers):
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git-svn-id: http://svn.webkit.org/repository/webkit/trunk@154985 268f45cc-cd09-0410-ab3c-d52691b4dbfc
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---
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Source/WebKit/qt/Api/qwebframe.cpp | 9 ++++++++-
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Source/WebKit/qt/ChangeLog | 13 +++++++++++++
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2 files changed, 21 insertions(+), 1 deletion(-)
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diff --git a/Source/WebKit/qt/Api/qwebframe.cpp b/Source/WebKit/qt/Api/qwebframe.cpp
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index 6205a9c..b54b9c0 100644
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--- a/Source/WebKit/qt/Api/qwebframe.cpp
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+++ b/Source/WebKit/qt/Api/qwebframe.cpp
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@@ -234,7 +234,14 @@ void QWebFramePrivate::renderCompositedLayers(GraphicsContext* context, const In
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return;
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textureMapper->setGraphicsContext(context);
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- textureMapper->setImageInterpolationQuality(context->imageInterpolationQuality());
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+ // GraphicsContext::imageInterpolationQuality is always InterpolationDefault here,
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+ // but 'default' may be interpreted differently due to a different backend QPainter,
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+ // so we need to set an explicit imageInterpolationQuality.
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+ if (context->platformContext()->renderHints() & QPainter::SmoothPixmapTransform)
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+ textureMapper->setImageInterpolationQuality(WebCore::InterpolationMedium);
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+ else
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+ textureMapper->setImageInterpolationQuality(WebCore::InterpolationNone);
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+
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textureMapper->setTextDrawingMode(context->textDrawingMode());
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QPainter* painter = context->platformContext();
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const QTransform transform = painter->worldTransform();
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diff --git a/Source/WebKit/qt/ChangeLog b/Source/WebKit/qt/ChangeLog
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index 62f60c5..ec00b6e 100644
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--- a/Source/WebKit/qt/ChangeLog
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+++ b/Source/WebKit/qt/ChangeLog
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@@ -1,5 +1,18 @@
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2013-09-03 Allan Sandfeld Jensen <allan.jensen@digia.com>
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+ [Qt] Images scaled poorly on composited canvas
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+ https://bugs.webkit.org/show_bug.cgi?id=120632
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+
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+ Reviewed by Jocelyn Turcotte.
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+
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+ Explicitly set a imageInterpolationQuality on the TextureMapper, because
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+ InterpolationDefault may be interpreted differently by nested GraphicsContexts.
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+
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+ * WebCoreSupport/TextureMapperLayerClientQt.cpp:
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+ (TextureMapperLayerClientQt::renderCompositedLayers):
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+
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+2013-09-03 Allan Sandfeld Jensen <allan.jensen@digia.com>
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+
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[Qt] Tiled-backing store not clipped to frame or visible rect
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https://bugs.webkit.org/show_bug.cgi?id=120606
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--
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1.8.3.1
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