1 // Copyright 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "cc/layers/content_layer.h" 6 7 #include "cc/layers/content_layer_client.h" 8 #include "cc/resources/bitmap_content_layer_updater.h" 9 #include "cc/test/fake_rendering_stats_instrumentation.h" 10 #include "cc/test/geometry_test_utils.h" 11 #include "skia/ext/platform_canvas.h" 12 #include "testing/gtest/include/gtest/gtest.h" 13 #include "ui/gfx/rect_conversions.h" 14 15 namespace cc { 16 namespace { 17 18 class MockContentLayerClient : public ContentLayerClient { 19 public: 20 explicit MockContentLayerClient(gfx::Rect opaque_layer_rect) 21 : opaque_layer_rect_(opaque_layer_rect) {} 22 23 virtual void PaintContents(SkCanvas* canvas, 24 gfx::Rect clip, 25 gfx::RectF* opaque) OVERRIDE { 26 *opaque = gfx::RectF(opaque_layer_rect_); 27 } 28 virtual void DidChangeLayerCanUseLCDText() OVERRIDE {} 29 30 private: 31 gfx::Rect opaque_layer_rect_; 32 }; 33 34 TEST(ContentLayerTest, ContentLayerPainterWithDeviceScale) { 35 float contents_scale = 2.f; 36 gfx::Rect content_rect(10, 10, 100, 100); 37 gfx::Rect opaque_rect_in_layer_space(5, 5, 20, 20); 38 gfx::Rect opaque_rect_in_content_space = gfx::ScaleToEnclosingRect( 39 opaque_rect_in_layer_space, contents_scale, contents_scale); 40 MockContentLayerClient client(opaque_rect_in_layer_space); 41 FakeRenderingStatsInstrumentation stats_instrumentation; 42 scoped_refptr<BitmapContentLayerUpdater> updater = 43 BitmapContentLayerUpdater::Create( 44 ContentLayerPainter::Create(&client).PassAs<LayerPainter>(), 45 &stats_instrumentation, 46 0); 47 48 gfx::Rect resulting_opaque_rect; 49 updater->PrepareToUpdate(content_rect, 50 gfx::Size(256, 256), 51 contents_scale, 52 contents_scale, 53 &resulting_opaque_rect); 54 55 EXPECT_EQ(opaque_rect_in_content_space.ToString(), 56 resulting_opaque_rect.ToString()); 57 } 58 59 } // namespace 60 } // namespace cc 61
