cc/layers/heads_up_display_layer_impl_unittest.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/heads_up_display_layer_impl.h"
   7 #include "cc/test/fake_impl_proxy.h"
   8 #include "cc/test/fake_layer_tree_host_impl.h"
   9 #include "cc/test/fake_output_surface.h"
  10 #include "cc/test/test_shared_bitmap_manager.h"
  11 #include "cc/test/test_task_graph_runner.h"
  12 #include "testing/gtest/include/gtest/gtest.h"
  13
  14 namespace cc {
  15 namespace {
  16
  17 void CheckDrawLayer(HeadsUpDisplayLayerImpl* layer,
  18                     ResourceProvider* resource_provider,
  19                     DrawMode draw_mode) {
  20   scoped_ptr<RenderPass> render_pass = RenderPass::Create();
  21   AppendQuadsData data;
  22   bool will_draw = layer->WillDraw(draw_mode, resource_provider);
  23   if (will_draw)
  24     layer->AppendQuads(render_pass.get(), &data);
  25   layer->UpdateHudTexture(draw_mode, resource_provider);
  26   if (will_draw)
  27     layer->DidDraw(resource_provider);
  28
  29   size_t expected_quad_list_size = will_draw ? 1 : 0;
  30   EXPECT_EQ(expected_quad_list_size, render_pass->quad_list.size());
  31 }
  32
  33 TEST(HeadsUpDisplayLayerImplTest, ResourcelessSoftwareDrawAfterResourceLoss) {
  34   FakeImplProxy proxy;
  35   TestSharedBitmapManager shared_bitmap_manager;
  36   TestTaskGraphRunner task_graph_runner;
  37   FakeLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager,
  38                                   &task_graph_runner);
  39   host_impl.CreatePendingTree();
  40   host_impl.InitializeRenderer(FakeOutputSurface::Create3d());
  41   scoped_ptr<HeadsUpDisplayLayerImpl> layer =
  42     HeadsUpDisplayLayerImpl::Create(host_impl.pending_tree(), 1);
  43   layer->SetBounds(gfx::Size(100, 100));
  44
  45   // Check regular hardware draw is ok.
  46   CheckDrawLayer(
  47       layer.get(), host_impl.resource_provider(), DRAW_MODE_HARDWARE);
  48
  49   // Simulate a resource loss on transitioning to resourceless software mode.
  50   layer->ReleaseResources();
  51
  52   // Should skip resourceless software draw and not crash in UpdateHudTexture.
  53   CheckDrawLayer(layer.get(),
  54                  host_impl.resource_provider(),
  55                  DRAW_MODE_RESOURCELESS_SOFTWARE);
  56 }
  57
  58 }  // namespace
  59 }  // namespace cc