cc/layers/texture_layer_impl_unittest.cc

   1 // Copyright 2014 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/texture_layer_impl.h"
   6
   7 #include "cc/output/context_provider.h"
   8 #include "cc/output/output_surface.h"
   9 #include "cc/test/layer_test_common.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 namespace cc {
  13 namespace {
  14
  15 void IgnoreCallback(uint32 sync_point,
  16                     bool lost,
  17                     BlockingTaskRunner* main_thread_task_runner) {
  18 }
  19
  20 TEST(TextureLayerImplTest, VisibleOpaqueRegion) {
  21   const gfx::Size layer_bounds(100, 100);
  22   const gfx::Rect layer_rect(layer_bounds);
  23   const Region layer_region(layer_rect);
  24
  25   LayerTestCommon::LayerImplTest impl;
  26
  27   TextureLayerImpl* layer = impl.AddChildToRoot<TextureLayerImpl>();
  28   layer->SetBounds(layer_bounds);
  29   layer->draw_properties().visible_layer_rect = layer_rect;
  30   layer->SetBlendBackgroundColor(true);
  31
  32   // Verify initial conditions.
  33   EXPECT_FALSE(layer->contents_opaque());
  34   EXPECT_EQ(0u, layer->background_color());
  35   EXPECT_EQ(Region().ToString(), layer->VisibleOpaqueRegion().ToString());
  36
  37   // Opaque background.
  38   layer->SetBackgroundColor(SK_ColorWHITE);
  39   EXPECT_EQ(layer_region.ToString(), layer->VisibleOpaqueRegion().ToString());
  40
  41   // Transparent background.
  42   layer->SetBackgroundColor(SkColorSetARGB(100, 255, 255, 255));
  43   EXPECT_EQ(Region().ToString(), layer->VisibleOpaqueRegion().ToString());
  44 }
  45
  46 TEST(TextureLayerImplTest, Occlusion) {
  47   gfx::Size layer_size(1000, 1000);
  48   gfx::Size viewport_size(1000, 1000);
  49
  50   LayerTestCommon::LayerImplTest impl;
  51
  52   gpu::Mailbox mailbox;
  53   impl.output_surface()->context_provider()->ContextGL()->GenMailboxCHROMIUM(
  54       mailbox.name);
  55   TextureMailbox texture_mailbox(mailbox, GL_TEXTURE_2D, 0);
  56
  57   TextureLayerImpl* texture_layer_impl =
  58       impl.AddChildToRoot<TextureLayerImpl>();
  59   texture_layer_impl->SetBounds(layer_size);
  60   texture_layer_impl->SetDrawsContent(true);
  61   texture_layer_impl->SetTextureMailbox(
  62       texture_mailbox,
  63       SingleReleaseCallbackImpl::Create(base::Bind(&IgnoreCallback)));
  64
  65   impl.CalcDrawProps(viewport_size);
  66
  67   {
  68     SCOPED_TRACE("No occlusion");
  69     gfx::Rect occluded;
  70     impl.AppendQuadsWithOcclusion(texture_layer_impl, occluded);
  71
  72     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(),
  73                                                  gfx::Rect(layer_size));
  74     EXPECT_EQ(1u, impl.quad_list().size());
  75   }
  76
  77   {
  78     SCOPED_TRACE("Full occlusion");
  79     gfx::Rect occluded(texture_layer_impl->visible_layer_rect());
  80     impl.AppendQuadsWithOcclusion(texture_layer_impl, occluded);
  81
  82     LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
  83     EXPECT_EQ(impl.quad_list().size(), 0u);
  84   }
  85
  86   {
  87     SCOPED_TRACE("Partial occlusion");
  88     gfx::Rect occluded(200, 0, 800, 1000);
  89     impl.AppendQuadsWithOcclusion(texture_layer_impl, occluded);
  90
  91     size_t partially_occluded_count = 0;
  92     LayerTestCommon::VerifyQuadsAreOccluded(
  93         impl.quad_list(), occluded, &partially_occluded_count);
  94     // The layer outputs one quad, which is partially occluded.
  95     EXPECT_EQ(1u, impl.quad_list().size());
  96     EXPECT_EQ(1u, partially_occluded_count);
  97   }
  98 }
  99
 100 }  // namespace
 101 }  // namespace cc