cc: Nine patch layer.

cc/nine_patch_layer_unittest.cc

+// Copyright 2012 The  Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "config.h"
+
+#include "cc/nine_patch_layer.h"
+
+#include "cc/layer_tree_host.h"
+#include "cc/occlusion_tracker.h"
+#include "cc/overdraw_metrics.h"
+#include "cc/rendering_stats.h"
+#include "cc/resource_provider.h"
+#include "cc/single_thread_proxy.h"
+#include "cc/resource_update_queue.h"
+#include "cc/texture_uploader.h"
+#include "cc/test/fake_graphics_context.h"
+#include "cc/test/fake_layer_tree_host_client.h"
+#include "cc/test/geometry_test_utils.h"
+#include "cc/test/layer_tree_test_common.h"
+#include "SkBitmap.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+using namespace cc;
+using ::testing::Mock;
+using ::testing::_;
+using ::testing::AtLeast;
+using ::testing::AnyNumber;
+
+namespace {
+
+class MockLayerTreeHost : public LayerTreeHost {
+public:
+    MockLayerTreeHost()
+        : LayerTreeHost(&m_fakeClient, LayerTreeSettings())
+    {
+        initialize();
+    }
+
+private:
+    FakeLayerImplTreeHostClient m_fakeClient;
+};
+
+
+class NinePatchLayerTest : public testing::Test {
+public:
+    NinePatchLayerTest()
+    {
+    }
+
+protected:
+    virtual void SetUp()
+    {
+        m_layerTreeHost.reset(new MockLayerTreeHost);
+    }
+
+    virtual void TearDown()
+    {
+        Mock::VerifyAndClearExpectations(m_layerTreeHost.get());
+    }
+
+    scoped_ptr<MockLayerTreeHost> m_layerTreeHost;
+};
+
+TEST_F(NinePatchLayerTest, triggerFullUploadOnceWhenChangingBitmap)
+{
+    scoped_refptr<NinePatchLayer> testLayer = NinePatchLayer::create();
+    ASSERT_TRUE(testLayer);
+    testLayer->setIsDrawable(true);
+    testLayer->setBounds(gfx::Size(100, 100));
+
+    m_layerTreeHost->setRootLayer(testLayer);
+    Mock::VerifyAndClearExpectations(m_layerTreeHost.get());
+    EXPECT_EQ(testLayer->layerTreeHost(), m_layerTreeHost.get());
+
+    m_layerTreeHost->initializeRendererIfNeeded();
+
+    PriorityCalculator calculator;
+    ResourceUpdateQueue queue;
+    OcclusionTracker occlusionTracker(gfx::Rect(), false);
+    RenderingStats stats;
+
+    // No bitmap set should not trigger any uploads.
+    testLayer->setTexturePriorities(calculator);
+    testLayer->update(queue, &occlusionTracker, stats);
+    EXPECT_EQ(queue.fullUploadSize(), 0);
+    EXPECT_EQ(queue.partialUploadSize(), 0);
+
+    // Setting a bitmap set should trigger a single full upload.
+    SkBitmap bitmap;
+    bitmap.setConfig(SkBitmap::kARGB_8888_Config, 10, 10);
+    bitmap.allocPixels();
+    testLayer->setBitmap(bitmap, gfx::Rect(5, 5, 1, 1));
+    testLayer->setTexturePriorities(calculator);
+    testLayer->update(queue, &occlusionTracker, stats);
+    EXPECT_EQ(queue.fullUploadSize(), 1);
+    EXPECT_EQ(queue.partialUploadSize(), 0);
+    ResourceUpdate params = queue.takeFirstFullUpload();
+    EXPECT_TRUE(params.texture != NULL);
+
+    // Upload the texture.
+    m_layerTreeHost->contentsTextureManager()->setMaxMemoryLimitBytes(1024 * 1024);
+    m_layerTreeHost->contentsTextureManager()->prioritizeTextures();
+
+    scoped_ptr<GraphicsContext> context;
+    scoped_ptr<ResourceProvider> resourceProvider;
+    {
+        DebugScopedSetImplThread implThread;
+        DebugScopedSetMainThreadBlocked mainThreadBlocked;
+        context = WebKit::createFakeGraphicsContext();
+        resourceProvider = ResourceProvider::create(context.get());
+        params.texture->acquireBackingTexture(resourceProvider.get());
+        ASSERT_TRUE(params.texture->haveBackingTexture());
+    }
+
+    // Nothing changed, so no repeated upload.
+    testLayer->setTexturePriorities(calculator);
+    testLayer->update(queue, &occlusionTracker, stats);
+    EXPECT_EQ(queue.fullUploadSize(), 0);
+    EXPECT_EQ(queue.partialUploadSize(), 0);
+
+    {
+        DebugScopedSetImplThread implThread;
+        DebugScopedSetMainThreadBlocked mainThreadBlocked;
+        m_layerTreeHost->contentsTextureManager()->clearAllMemory(resourceProvider.get());
+    }
+
+    // Reupload after eviction
+    testLayer->setTexturePriorities(calculator);
+    testLayer->update(queue, &occlusionTracker, stats);
+    EXPECT_EQ(queue.fullUploadSize(), 1);
+    EXPECT_EQ(queue.partialUploadSize(), 0);
+}
+
+} // anonymous namespace