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->SetMemoryPolicy(
  32         ManagedMemoryPolicy(1, gpu::MemoryAllocation::CUTOFF_ALLOW_EVERYTHING,
  33                             1000));
  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     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
  45     MockQuadCuller quad_culler(render_pass.get());
  46
  47     AppendQuadsData data;
  48     picture_layer->AppendQuads(&quad_culler, &data);
  49
  50     for (size_t i = 0; i < render_pass->quad_list.size(); ++i)
  51       EXPECT_EQ(render_pass->quad_list[i]->material, DrawQuad::PICTURE_CONTENT);
  52
  53     // Triggers pixel readback and ends the test.
  54     LayerTreePixelTest::SwapBuffersOnThread(host_impl, result);
  55   }
  56 };
  57
  58 class BlueYellowLayerClient : public ContentLayerClient {
  59  public:
  60   explicit BlueYellowLayerClient(gfx::Rect layer_rect)
  61       : layer_rect_(layer_rect) {}
  62
  63   virtual void DidChangeLayerCanUseLCDText() OVERRIDE { }
  64
  65   virtual bool FillsBoundsCompletely() const OVERRIDE { return false; }
  66
  67   virtual void PaintContents(
  68       SkCanvas* canvas,
  69       const gfx::Rect& clip,
  70       gfx::RectF* opaque,
  71       ContentLayerClient::GraphicsContextStatus gc_status) OVERRIDE {
  72     *opaque = gfx::RectF(layer_rect_.width(), layer_rect_.height());
  73
  74     SkPaint paint;
  75     paint.setColor(SK_ColorBLUE);
  76     canvas->drawRect(SkRect::MakeWH(layer_rect_.width(),
  77                                     layer_rect_.height() / 2),
  78                      paint);
  79
  80     paint.setColor(SK_ColorYELLOW);
  81     canvas->drawRect(
  82         SkRect::MakeXYWH(0,
  83                          layer_rect_.height() / 2,
  84                          layer_rect_.width(),
  85                          layer_rect_.height() / 2),
  86         paint);
  87   }
  88
  89  private:
  90   gfx::Rect layer_rect_;
  91 };
  92
  93 TEST_F(LayerTreeHostOnDemandRasterPixelTest, RasterPictureLayer) {
  94   // Use multiple colors in a single layer to prevent bypassing on-demand
  95   // rasterization if a single solid color is detected in picture analysis.
  96   gfx::Rect layer_rect(200, 200);
  97   BlueYellowLayerClient client(layer_rect);
  98   scoped_refptr<PictureLayer> layer = PictureLayer::Create(&client);
  99
 100   layer->SetIsDrawable(true);
 101   layer->SetAnchorPoint(gfx::PointF());
 102   layer->SetBounds(layer_rect.size());
 103   layer->SetPosition(layer_rect.origin());
 104
 105   RunPixelTest(GL_WITH_BITMAP,
 106                layer,
 107                base::FilePath(FILE_PATH_LITERAL("blue_yellow.png")));
 108 }
 109
 110 }  // namespace
 111 }  // namespace cc
 112
 113 #endif  // OS_ANDROID