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/trees/layer_tree_impl.h"
  12 #include "third_party/skia/include/core/SkCanvas.h"
  13 #include "third_party/skia/include/core/SkColor.h"
  14 #include "ui/gfx/geometry/rect.h"
  15 #include "ui/gfx/geometry/rect_f.h"
  16
  17 #if !defined(OS_ANDROID)
  18
  19 namespace cc {
  20 namespace {
  21
  22 class LayerTreeHostOnDemandRasterPixelTest : public LayerTreePixelTest {
  23  public:
  24   void InitializeSettings(LayerTreeSettings* settings) override {
  25     settings->impl_side_painting = true;
  26   }
  27
  28   void BeginCommitOnThread(LayerTreeHostImpl* impl) override {
  29     // Not enough memory available. Enforce on-demand rasterization.
  30     impl->SetMemoryPolicy(
  31         ManagedMemoryPolicy(1, gpu::MemoryAllocation::CUTOFF_ALLOW_EVERYTHING,
  32                             1000));
  33   }
  34
  35   void SwapBuffersOnThread(LayerTreeHostImpl* host_impl, bool result) override {
  36     // Find the PictureLayerImpl ask it to append quads to check their material.
  37     // The PictureLayerImpl is assumed to be the first child of the root layer
  38     // in the active tree.
  39     PictureLayerImpl* picture_layer = static_cast<PictureLayerImpl*>(
  40         host_impl->active_tree()->root_layer()->child_at(0));
  41
  42     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
  43
  44     AppendQuadsData data;
  45     picture_layer->AppendQuads(render_pass.get(), Occlusion(), &data);
  46
  47     for (const auto& quad : render_pass->quad_list)
  48       EXPECT_EQ(quad->material, DrawQuad::PICTURE_CONTENT);
  49
  50     // Triggers pixel readback and ends the test.
  51     LayerTreePixelTest::SwapBuffersOnThread(host_impl, result);
  52   }
  53
  54   void RunOnDemandRasterPixelTest();
  55 };
  56
  57 class BlueYellowLayerClient : public ContentLayerClient {
  58  public:
  59   explicit BlueYellowLayerClient(gfx::Rect layer_rect)
  60       : layer_rect_(layer_rect) {}
  61
  62   bool FillsBoundsCompletely() const override { return false; }
  63
  64   void PaintContents(SkCanvas* canvas,
  65                      const gfx::Rect& clip,
  66                      PaintingControlSetting picture_control) override {
  67     SkPaint paint;
  68     paint.setColor(SK_ColorBLUE);
  69     canvas->drawRect(SkRect::MakeWH(layer_rect_.width(),
  70                                     layer_rect_.height() / 2),
  71                      paint);
  72
  73     paint.setColor(SK_ColorYELLOW);
  74     canvas->drawRect(
  75         SkRect::MakeXYWH(0,
  76                          layer_rect_.height() / 2,
  77                          layer_rect_.width(),
  78                          layer_rect_.height() / 2),
  79         paint);
  80   }
  81
  82   scoped_refptr<DisplayItemList> PaintContentsToDisplayList(
  83       const gfx::Rect& clip,
  84       PaintingControlSetting picture_control) override {
  85     NOTIMPLEMENTED();
  86     return DisplayItemList::Create();
  87   }
  88
  89  private:
  90   gfx::Rect layer_rect_;
  91 };
  92
  93 void LayerTreeHostOnDemandRasterPixelTest::RunOnDemandRasterPixelTest() {
  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->SetBounds(layer_rect.size());
 102   layer->SetPosition(layer_rect.origin());
 103
 104   RunPixelTest(PIXEL_TEST_GL,
 105                layer,
 106                base::FilePath(FILE_PATH_LITERAL("blue_yellow.png")));
 107 }
 108
 109 TEST_F(LayerTreeHostOnDemandRasterPixelTest, RasterPictureLayer) {
 110   RunOnDemandRasterPixelTest();
 111 }
 112
 113 }  // namespace
 114 }  // namespace cc
 115
 116 #endif  // OS_ANDROID