From d6a599dbc9d824a462b2b206316e102bf8136446 Mon Sep 17 00:00:00 2001
From: Simon Hausmann <simon.hausmann@nokia.com>
Date: Wed, 11 Jul 2012 13:45:28 +0200
Subject: Imported WebKit commit 8ff1f22783a32de82fee915abd55bd1b298f2644
 (http://svn.webkit.org/repository/webkit/trunk@122325)

New snapshot that should work with the latest Qt build system changes
---
 .../chromium/tests/ContentLayerChromiumTest.cpp    | 110 +++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 Source/WebKit/chromium/tests/ContentLayerChromiumTest.cpp

(limited to 'Source/WebKit/chromium/tests/ContentLayerChromiumTest.cpp')

diff --git a/Source/WebKit/chromium/tests/ContentLayerChromiumTest.cpp b/Source/WebKit/chromium/tests/ContentLayerChromiumTest.cpp
new file mode 100644
index 000000000..750418535
--- /dev/null
+++ b/Source/WebKit/chromium/tests/ContentLayerChromiumTest.cpp
@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2012 Google Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include "ContentLayerChromium.h"
+
+#include "BitmapCanvasLayerTextureUpdater.h"
+#include "CCLayerTreeTestCommon.h"
+#include "GraphicsContext.h"
+#include "OpaqueRectTrackingContentLayerDelegate.h"
+#include "skia/ext/platform_canvas.h"
+
+#include <gtest/gtest.h>
+#include <public/WebFloatRect.h>
+#include <public/WebRect.h>
+#include <wtf/OwnPtr.h>
+#include <wtf/RefPtr.h>
+
+using namespace WebCore;
+using namespace WebKit;
+
+namespace {
+
+class OpaqueRectDrawingGraphicsContextPainter : public GraphicsContextPainter {
+public:
+    explicit OpaqueRectDrawingGraphicsContextPainter(const IntRect& opaqueRect, const IntRect& contentRect)
+        : m_opaqueRect(opaqueRect)
+        , m_contentRect(contentRect)
+    {
+    }
+
+    virtual ~OpaqueRectDrawingGraphicsContextPainter()
+    {
+    }
+
+    virtual void paint(GraphicsContext& context, const IntRect& clip) OVERRIDE
+    {
+        Color alpha(0, 0, 0, 0);
+        context.fillRect(m_contentRect, alpha, ColorSpaceDeviceRGB);
+
+        Color white(255, 255, 255, 255);
+        context.fillRect(m_opaqueRect, white, ColorSpaceDeviceRGB);
+    }
+
+private:
+    IntRect m_opaqueRect;
+    IntRect m_contentRect;
+};
+
+class MockContentLayerDelegate : public ContentLayerDelegate {
+public:
+    explicit MockContentLayerDelegate(OpaqueRectTrackingContentLayerDelegate* client)
+        : m_client(client)
+    {
+    }
+
+    virtual void paintContents(SkCanvas* canvas, const IntRect& clip, FloatRect& opaque) OVERRIDE
+    {
+        WebFloatRect resultingOpaqueRect(opaque.x(), opaque.y(), opaque.width(), opaque.height());
+        WebRect webClipRect(clip.x(), clip.y(), clip.width(), clip.height());
+        m_client->paintContents(canvas, webClipRect, resultingOpaqueRect);
+        opaque = FloatRect(resultingOpaqueRect.x, resultingOpaqueRect.y, resultingOpaqueRect.width, resultingOpaqueRect.height);
+    }
+
+private:
+    OpaqueRectTrackingContentLayerDelegate* m_client;
+};
+
+TEST(ContentLayerChromiumTest, ContentLayerPainterWithDeviceScale)
+{
+    float contentsScale = 2;
+    IntRect contentRect(10, 10, 100, 100);
+    IntRect opaqueRectInLayerSpace(5, 5, 20, 20);
+    IntRect opaqueRectInContentSpace = opaqueRectInLayerSpace;
+    opaqueRectInContentSpace.scale(contentsScale);
+    OwnPtr<SkCanvas> canvas = adoptPtr(skia::CreateBitmapCanvas(contentRect.width(), contentRect.height(), false));
+    OpaqueRectDrawingGraphicsContextPainter painter(opaqueRectInLayerSpace, contentRect);
+    OpaqueRectTrackingContentLayerDelegate opaqueRectTrackingContentLayerDelegate(&painter);
+    MockContentLayerDelegate delegate(&opaqueRectTrackingContentLayerDelegate);
+    RefPtr<BitmapCanvasLayerTextureUpdater> updater = BitmapCanvasLayerTextureUpdater::create(ContentLayerPainter::create(&delegate), false);
+
+    IntRect resultingOpaqueRect;
+    updater->prepareToUpdate(contentRect, IntSize(256, 256), contentsScale, contentsScale, resultingOpaqueRect);
+
+    EXPECT_INT_RECT_EQ(opaqueRectInContentSpace, resultingOpaqueRect);
+}
+
+} // namespace
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