Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 256 insertions, 0 deletions

diff --git a/Source/WebKit/chromium/tests/CCTiledLayerImplTest.cpp b/Source/WebKit/chromium/tests/CCTiledLayerImplTest.cpp
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+++ b/Source/WebKit/chromium/tests/CCTiledLayerImplTest.cpp
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+/*
+ * 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 "cc/CCTiledLayerImpl.h"
+
+#include "Region.h"
+#include "cc/CCSingleThreadProxy.h"
+#include "cc/CCTileDrawQuad.h"
+#include <gmock/gmock.h>
+#include <gtest/gtest.h>
+
+using namespace WebCore;
+
+namespace {
+
+// Create a default tiled layer with textures for all tiles and a default
+// visibility of the entire layer size.
+static PassRefPtr<CCTiledLayerImpl> createLayer(const IntSize& tileSize, const IntSize& layerSize, CCLayerTilingData::BorderTexelOption borderTexels)
+{
+    RefPtr<CCTiledLayerImpl> layer = CCTiledLayerImpl::create(0);
+    OwnPtr<CCLayerTilingData> tiler = CCLayerTilingData::create(tileSize, borderTexels);
+    tiler->setBounds(layerSize);
+    layer->setTilingData(*tiler);
+    layer->setSkipsDraw(false);
+    layer->setVisibleLayerRect(IntRect(IntPoint(), layerSize));
+
+    int textureId = 1;
+    for (int i = 0; i < tiler->numTilesX(); ++i)
+        for (int j = 0; j < tiler->numTilesY(); ++j)
+            layer->syncTextureId(i, j, static_cast<Platform3DObject>(textureId++));
+
+    return layer.release();
+}
+
+TEST(CCTiledLayerImplTest, emptyQuadList)
+{
+    DebugScopedSetImplThread scopedImplThread;
+
+    const IntSize tileSize(90, 90);
+    const int numTilesX = 8;
+    const int numTilesY = 4;
+    const IntSize layerSize(tileSize.width() * numTilesX, tileSize.height() * numTilesY);
+
+    // Verify default layer does creates quads
+    {
+        RefPtr<CCTiledLayerImpl> layer = createLayer(tileSize, layerSize, CCLayerTilingData::NoBorderTexels);
+        CCQuadList quads;
+        OwnPtr<CCSharedQuadState> sharedQuadState = layer->createSharedQuadState();
+        layer->appendQuads(quads, sharedQuadState.get());
+        const unsigned numTiles = numTilesX * numTilesY;
+        EXPECT_EQ(quads.size(), numTiles);
+    }
+
+    // Layer with empty visible layer rect produces no quads
+    {
+        RefPtr<CCTiledLayerImpl> layer = createLayer(tileSize, layerSize, CCLayerTilingData::NoBorderTexels);
+        layer->setVisibleLayerRect(IntRect());
+
+        CCQuadList quads;
+        OwnPtr<CCSharedQuadState> sharedQuadState = layer->createSharedQuadState();
+        layer->appendQuads(quads, sharedQuadState.get());
+        EXPECT_EQ(quads.size(), 0u);
+    }
+
+    // Layer with non-intersecting visible layer rect produces no quads
+    {
+        RefPtr<CCTiledLayerImpl> layer = createLayer(tileSize, layerSize, CCLayerTilingData::NoBorderTexels);
+
+        IntRect outsideBounds(IntPoint(-100, -100), IntSize(50, 50));
+        layer->setVisibleLayerRect(outsideBounds);
+
+        CCQuadList quads;
+        OwnPtr<CCSharedQuadState> sharedQuadState = layer->createSharedQuadState();
+        layer->appendQuads(quads, sharedQuadState.get());
+        EXPECT_EQ(quads.size(), 0u);
+    }
+
+    // Layer with skips draw produces no quads
+    {
+        RefPtr<CCTiledLayerImpl> layer = createLayer(tileSize, layerSize, CCLayerTilingData::NoBorderTexels);
+        layer->setSkipsDraw(true);
+
+        CCQuadList quads;
+        OwnPtr<CCSharedQuadState> sharedQuadState = layer->createSharedQuadState();
+        layer->appendQuads(quads, sharedQuadState.get());
+        EXPECT_EQ(quads.size(), 0u);
+    }
+}
+
+TEST(CCTiledLayerImplTest, checkerboarding)
+{
+    DebugScopedSetImplThread scopedImplThread;
+
+    const IntSize tileSize(10, 10);
+    const int numTilesX = 2;
+    const int numTilesY = 2;
+    const IntSize layerSize(tileSize.width() * numTilesX, tileSize.height() * numTilesY);
+
+    RefPtr<CCTiledLayerImpl> layer = createLayer(tileSize, layerSize, CCLayerTilingData::NoBorderTexels);
+    OwnPtr<CCSharedQuadState> sharedQuadState = layer->createSharedQuadState();
+
+    // No checkerboarding
+    {
+        CCQuadList quads;
+        layer->appendQuads(quads, sharedQuadState.get());
+        EXPECT_EQ(quads.size(), 4u);
+
+        for (size_t i = 0; i < quads.size(); ++i)
+            EXPECT_EQ(quads[i]->material(), CCDrawQuad::TiledContent);
+    }
+
+    for (int i = 0; i < numTilesX; ++i)
+        for (int j = 0; j < numTilesY; ++j)
+            layer->syncTextureId(i, j, static_cast<Platform3DObject>(0));
+
+    // All checkerboarding
+    {
+        CCQuadList quads;
+        layer->appendQuads(quads, sharedQuadState.get());
+        EXPECT_EQ(quads.size(), 4u);
+        for (size_t i = 0; i < quads.size(); ++i)
+            EXPECT_EQ(quads[i]->material(), CCDrawQuad::SolidColor);
+    }
+}
+
+static bool completelyContains(const Region& container, const IntRect& rect)
+{
+    Region tester(rect);
+    Vector<IntRect> rects = container.rects();
+    for (size_t i = 0; i < rects.size(); ++i)
+        tester.subtract(rects[i]);
+    return tester.isEmpty();
+}
+
+static void getQuads(CCQuadList& quads, IntSize tileSize, const IntSize& layerSize, CCLayerTilingData::BorderTexelOption borderTexelOption, const IntRect& visibleLayerRect)
+{
+    RefPtr<CCTiledLayerImpl> layer = createLayer(tileSize, layerSize, borderTexelOption);
+    layer->setVisibleLayerRect(visibleLayerRect);
+    layer->setBounds(layerSize);
+
+    OwnPtr<CCSharedQuadState> sharedQuadState = layer->createSharedQuadState();
+    layer->appendQuads(quads, sharedQuadState.get());
+}
+
+// Align with expected and actual output
+static const char* quadString = "    Quad: ";
+
+static void verifyQuadsExactlyCoverRect(const CCQuadList& quads, const IntRect& rect)
+{
+    Region remaining(rect);
+
+    for (size_t i = 0; i < quads.size(); ++i) {
+        CCDrawQuad* quad = quads[i].get();
+
+        EXPECT_TRUE(rect.contains(quad->quadRect())) << quadString << i;
+        EXPECT_TRUE(completelyContains(remaining, quad->quadRect())) << quadString << i;
+        remaining.subtract(Region(quad->quadRect()));
+    }
+
+    EXPECT_TRUE(remaining.isEmpty());
+}
+
+// Test with both border texels and without.
+#define WITH_AND_WITHOUT_BORDER_TEST(testFixtureName)       \
+    TEST(CCTiledLayerImplTest, testFixtureName##NoBorders)  \
+    {                                                       \
+        testFixtureName(CCLayerTilingData::NoBorderTexels); \
+    }                                                       \
+    TEST(CCTiledLayerImplTest, testFixtureName##HasBorders) \
+    {                                                       \
+        testFixtureName(CCLayerTilingData::HasBorderTexels);\
+    }
+
+static void coverageVisibleRectOnTileBoundaries(CCLayerTilingData::BorderTexelOption borders)
+{
+    DebugScopedSetImplThread scopedImplThread;
+
+    IntSize layerSize(1000, 1000);
+    CCQuadList quads;
+    getQuads(quads, IntSize(100, 100), layerSize, borders, IntRect(IntPoint(), layerSize));
+    verifyQuadsExactlyCoverRect(quads, IntRect(IntPoint(), layerSize));
+}
+WITH_AND_WITHOUT_BORDER_TEST(coverageVisibleRectOnTileBoundaries);
+
+static void coverageVisibleRectIntersectsTiles(CCLayerTilingData::BorderTexelOption borders)
+{
+    DebugScopedSetImplThread scopedImplThread;
+
+    // This rect intersects the middle 3x3 of the 5x5 tiles.
+    IntPoint topLeft(65, 73);
+    IntPoint bottomRight(182, 198);
+    IntRect visibleLayerRect(topLeft, bottomRight - topLeft);
+
+    IntSize layerSize(250, 250);
+    CCQuadList quads;
+    getQuads(quads, IntSize(50, 50), IntSize(250, 250), CCLayerTilingData::NoBorderTexels, visibleLayerRect);
+    verifyQuadsExactlyCoverRect(quads, visibleLayerRect);
+}
+WITH_AND_WITHOUT_BORDER_TEST(coverageVisibleRectIntersectsTiles);
+
+static void coverageVisibleRectIntersectsBounds(CCLayerTilingData::BorderTexelOption borders)
+{
+    DebugScopedSetImplThread scopedImplThread;
+
+    IntSize layerSize(220, 210);
+    IntRect visibleLayerRect(IntPoint(), layerSize);
+    CCQuadList quads;
+    getQuads(quads, IntSize(100, 100), layerSize, CCLayerTilingData::NoBorderTexels, visibleLayerRect);
+    verifyQuadsExactlyCoverRect(quads, visibleLayerRect);
+}
+WITH_AND_WITHOUT_BORDER_TEST(coverageVisibleRectIntersectsBounds);
+
+TEST(CCTiledLayerImplTest, textureInfoForLayerNoBorders)
+{
+    DebugScopedSetImplThread scopedImplThread;
+
+    IntSize tileSize(50, 50);
+    IntSize layerSize(250, 250);
+    CCQuadList quads;
+    getQuads(quads, tileSize, layerSize, CCLayerTilingData::NoBorderTexels, IntRect(IntPoint(), layerSize));
+
+    for (size_t i = 0; i < quads.size(); ++i) {
+        ASSERT_EQ(quads[i]->material(), CCDrawQuad::TiledContent) << quadString << i;
+        CCTileDrawQuad* quad = static_cast<CCTileDrawQuad*>(quads[i].get());
+
+        EXPECT_NE(quad->textureId(), 0u) << quadString << i;
+        EXPECT_EQ(quad->textureOffset(), IntPoint()) << quadString << i;
+        EXPECT_EQ(quad->textureSize(), tileSize) << quadString << i;
+    }
+}
+
+
+} // namespace