cc/trees/layer_tree_host_pixeltest_on_demand_raster.cc

   1 // Copyright 2013 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/append_quads_data.h"
   6 #include "cc/layers/content_layer_client.h"
   7 #include "cc/layers/picture_layer.h"
   8 #include "cc/layers/picture_layer_impl.h"
   9 #include "cc/quads/draw_quad.h"
  10 #include "cc/test/layer_tree_pixel_test.h"
  11 #include "cc/test/mock_quad_culler.h"
  12 #include "cc/trees/layer_tree_impl.h"
  13 #include "third_party/skia/include/core/SkCanvas.h"
  14 #include "third_party/skia/include/core/SkColor.h"
  15 #include "ui/gfx/rect.h"
  16 #include "ui/gfx/rect_f.h"
  17
  18 #if !defined(OS_ANDROID)
  19
  20 namespace cc {
  21 namespace {
  22
  23 class LayerTreeHostOnDemandRasterPixelTest : public LayerTreePixelTest {
  24  public:
  25   virtual void InitializeSettings(LayerTreeSettings* settings) OVERRIDE {
  26     settings->impl_side_painting = true;
  27   }
  28
  29   virtual void BeginCommitOnThread(LayerTreeHostImpl* impl) OVERRIDE {
  30     // Not enough memory available. Enforce on-demand rasterization.
  31     impl->SetManagedMemoryPolicy(
  32         ManagedMemoryPolicy(1, ManagedMemoryPolicy::CUTOFF_ALLOW_EVERYTHING,
  33                             1, ManagedMemoryPolicy::CUTOFF_ALLOW_NOTHING));
  34   }
  35
  36   virtual void SwapBuffersOnThread(LayerTreeHostImpl* host_impl,
  37                                    bool result) OVERRIDE {
  38     // Find the PictureLayerImpl ask it to append quads to check their material.
  39     // The PictureLayerImpl is assumed to be the first child of the root layer
  40     // in the active tree.
  41     PictureLayerImpl* picture_layer = static_cast<PictureLayerImpl*>(
  42         host_impl->active_tree()->root_layer()->child_at(0));
  43
  44     QuadList quads;
  45     SharedQuadStateList shared_states;
  46     MockQuadCuller quad_culler(&quads, &shared_states);
  47
  48     AppendQuadsData data;
  49     picture_layer->AppendQuads(&quad_culler, &data);
  50
  51     for (size_t i = 0; i < quads.size(); ++i)
  52       EXPECT_EQ(quads[i]->material, DrawQuad::PICTURE_CONTENT);
  53
  54     // Triggers pixel readback and ends the test.
  55     LayerTreePixelTest::SwapBuffersOnThread(host_impl, result);
  56   }
  57 };
  58
  59 class BlueYellowLayerClient : public ContentLayerClient {
  60  public:
  61   BlueYellowLayerClient(gfx::Rect layer_rect) : layer_rect_(layer_rect) { }
  62
  63   virtual void DidChangeLayerCanUseLCDText() OVERRIDE { }
  64
  65   virtual void PaintContents(SkCanvas* canvas,
  66                              gfx::Rect clip,
  67                              gfx::RectF* opaque) OVERRIDE {
  68     *opaque = gfx::RectF(layer_rect_.width(), layer_rect_.height());
  69
  70     SkPaint paint;
  71     paint.setColor(SK_ColorBLUE);
  72     canvas->drawRect(SkRect::MakeWH(layer_rect_.width() / 2,
  73                                     layer_rect_.height()),
  74                      paint);
  75
  76     paint.setColor(SK_ColorYELLOW);
  77     canvas->drawRect(
  78         SkRect::MakeXYWH(layer_rect_.width() / 2,
  79                          0,
  80                          layer_rect_.width() / 2,
  81                          layer_rect_.height()),
  82         paint);
  83   }
  84
  85  private:
  86   gfx::Rect layer_rect_;
  87 };
  88
  89 TEST_F(LayerTreeHostOnDemandRasterPixelTest, RasterPictureLayer) {
  90   // Use multiple colors in a single layer to prevent bypassing on-demand
  91   // rasterization if a single solid color is detected in picture analysis.
  92   gfx::Rect layer_rect(200, 200);
  93   BlueYellowLayerClient client(layer_rect);
  94   scoped_refptr<PictureLayer> layer = PictureLayer::Create(&client);
  95
  96   layer->SetIsDrawable(true);
  97   layer->SetAnchorPoint(gfx::PointF());
  98   layer->SetBounds(layer_rect.size());
  99   layer->SetPosition(layer_rect.origin());
 100
 101   RunPixelTest(layer, base::FilePath(FILE_PATH_LITERAL("blue_yellow.png")));
 102 }
 103
 104 }  // namespace
 105 }  // namespace cc
 106
 107 #endif  // OS_ANDROID