cc: split UpdateGpuRasterizationStatus() into two parts.

cc/layers/picture_layer_impl_unittest.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "cc/layers/picture_layer_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <set>
 #include <utility>
@@ skipping 2420 matching lines @@
   SetupTrees(pending_pile, active_pile);
 
   EXPECT_TRUE(pending_layer_->tilings()->FindTilingWithScale(1.f));
   EXPECT_TRUE(active_layer_->tilings()->FindTilingWithScale(1.f));
 
   // Gpu rasterization is disabled by default.
   EXPECT_FALSE(host_impl_.use_gpu_rasterization());
   // Toggling the gpu rasterization clears all tilings on both trees.
   host_impl_.set_has_gpu_rasterization_trigger(true);
   host_impl_.set_content_is_suitable_for_gpu_rasterization(true);
-  host_impl_.UpdateGpuRasterizationStatus();
+  host_impl_.UpdateTreeResourcesIfNeeded();
   EXPECT_EQ(0u, pending_layer_->tilings()->num_tilings());
   EXPECT_EQ(0u, active_layer_->tilings()->num_tilings());
 
   // Make sure that we can still add tiling to the pending layer,
   // that gets synced to the active layer.
   time_ticks += base::TimeDelta::FromMilliseconds(1);
   host_impl_.SetCurrentBeginFrameArgs(
       CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, time_ticks));
   bool update_lcd_text = false;
   host_impl_.pending_tree()->UpdateDrawProperties(update_lcd_text);
   EXPECT_TRUE(pending_layer_->tilings()->FindTilingWithScale(1.f));
 
   ActivateTree();
   EXPECT_TRUE(active_layer_->tilings()->FindTilingWithScale(1.f));
 
   SetupPendingTree(pending_pile);
   EXPECT_TRUE(pending_layer_->tilings()->FindTilingWithScale(1.f));
 
   // Toggling the gpu rasterization clears all tilings on both trees.
   EXPECT_TRUE(host_impl_.use_gpu_rasterization());
   host_impl_.set_has_gpu_rasterization_trigger(false);
-  host_impl_.UpdateGpuRasterizationStatus();
+  host_impl_.UpdateTreeResourcesIfNeeded();
   EXPECT_EQ(GpuRasterizationStatus::OFF_VIEWPORT,
             host_impl_.gpu_rasterization_status());
   EXPECT_EQ(0u, pending_layer_->tilings()->num_tilings());
   EXPECT_EQ(0u, active_layer_->tilings()->num_tilings());
 
   host_impl_.set_has_gpu_rasterization_trigger(true);
   host_impl_.set_content_is_suitable_for_gpu_rasterization(false);
-  host_impl_.UpdateGpuRasterizationStatus();
   EXPECT_EQ(GpuRasterizationStatus::OFF_CONTENT,
             host_impl_.gpu_rasterization_status());
 }
 
 TEST_F(PictureLayerImplTest, HighResCreatedWhenBoundsShrink) {
   gfx::Size tile_size(100, 100);
 
   // Put 0.5 as high res.
   host_impl_.SetDeviceScaleFactor(0.5f);
 
@@ skipping 25 matching lines @@
       pending_layer_->tilings()->FindTilingWithScale(1.0f);
   ASSERT_TRUE(tiling);
   EXPECT_EQ(HIGH_RESOLUTION, tiling->resolution());
 }
 
 TEST_F(PictureLayerImplTest, LowResTilingWithoutGpuRasterization) {
   gfx::Size default_tile_size(host_impl_.settings().default_tile_size);
   gfx::Size layer_bounds(default_tile_size.width() * 4,
                          default_tile_size.height() * 4);
 
   host_impl_.set_has_gpu_rasterization_trigger(false);

[Stephen White, 2015/05/13 19:44:17]

Should we be calling UpdateTreeResourcesIfNeeded() here?

Test seems to pass without it; perhaps SetupDefaultTrees() (below) is enough?

-  host_impl_.UpdateGpuRasterizationStatus();
 
   SetupDefaultTrees(layer_bounds);
   EXPECT_FALSE(host_impl_.use_gpu_rasterization());
   // Should have a low-res and a high-res tiling.
   EXPECT_EQ(2u, pending_layer_->tilings()->num_tilings());
 }
 
 TEST_F(PictureLayerImplTest, NoLowResTilingWithGpuRasterization) {
   gfx::Size default_tile_size(host_impl_.settings().default_tile_size);
   gfx::Size layer_bounds(default_tile_size.width() * 4,
                          default_tile_size.height() * 4);
 
   host_impl_.set_has_gpu_rasterization_trigger(true);
   host_impl_.set_content_is_suitable_for_gpu_rasterization(true);

[Stephen White, 2015/05/13 19:44:17]

Same here?

-  host_impl_.UpdateGpuRasterizationStatus();
 
   SetupDefaultTrees(layer_bounds);
   EXPECT_TRUE(host_impl_.use_gpu_rasterization());
   // Should only have the high-res tiling.
   EXPECT_EQ(1u, pending_layer_->tilings()->num_tilings());
 }
 
 TEST_F(PictureLayerImplTest, RequiredTilesWithGpuRasterization) {
   host_impl_.set_has_gpu_rasterization_trigger(true);
   host_impl_.set_content_is_suitable_for_gpu_rasterization(true);

[Stephen White, 2015/05/13 19:44:17]

Same here?

-  host_impl_.UpdateGpuRasterizationStatus();
 
   gfx::Size viewport_size(1000, 1000);
   host_impl_.SetViewportSize(viewport_size);
 
   gfx::Size layer_bounds(4000, 4000);
   SetupDefaultTrees(layer_bounds);
   EXPECT_TRUE(host_impl_.use_gpu_rasterization());
 
   // Should only have the high-res tiling.
   EXPECT_EQ(1u, active_layer_->tilings()->num_tilings());
@@ skipping 281 matching lines @@
   EXPECT_BOTH_EQ(HighResTiling()->contents_scale(), 11.f);
 }
 
 TEST_F(PictureLayerImplTest, HighResTilingDuringAnimationForGpuRasterization) {
   gfx::Size layer_bounds(100, 100);
   gfx::Size viewport_size(1000, 1000);
   SetupDefaultTrees(layer_bounds);
   host_impl_.SetViewportSize(viewport_size);
   host_impl_.set_has_gpu_rasterization_trigger(true);
   host_impl_.set_content_is_suitable_for_gpu_rasterization(true);
-  host_impl_.UpdateGpuRasterizationStatus();
+  host_impl_.UpdateTreeResourcesIfNeeded();
 
   float contents_scale = 1.f;
   float device_scale = 1.3f;
   float page_scale = 1.4f;
   float maximum_animation_scale = 1.f;
   float starting_animation_scale = 0.f;
   bool animating_transform = false;
 
   SetContentsScaleOnBothLayers(contents_scale, device_scale, page_scale,
                                maximum_animation_scale,
@@ skipping 2166 matching lines @@
 
   LayerTreeImpl* pending_tree = host_impl_.pending_tree();
   scoped_ptr<FakePictureLayerImpl> layer =
       FakePictureLayerImpl::Create(pending_tree, id_);
 
   host_impl_.SetViewportSize(gfx::Size(1000, 1000));
   gfx::Size result;
 
   host_impl_.set_content_is_suitable_for_gpu_rasterization(true);
   host_impl_.set_has_gpu_rasterization_trigger(false);
-  host_impl_.UpdateGpuRasterizationStatus();
   EXPECT_EQ(host_impl_.gpu_rasterization_status(),
             GpuRasterizationStatus::OFF_VIEWPORT);
 
   // Default tile-size for large layers.
   result = layer->CalculateTileSize(gfx::Size(10000, 10000));
   EXPECT_EQ(result.width(), 100);
   EXPECT_EQ(result.height(), 100);
   // Don't tile and round-up, when under max_untiled_layer_size.
   result = layer->CalculateTileSize(gfx::Size(42, 42));
   EXPECT_EQ(result.width(), 64);
   EXPECT_EQ(result.height(), 64);
   result = layer->CalculateTileSize(gfx::Size(191, 191));
   EXPECT_EQ(result.width(), 192);
   EXPECT_EQ(result.height(), 192);
   result = layer->CalculateTileSize(gfx::Size(199, 199));
   EXPECT_EQ(result.width(), 200);
   EXPECT_EQ(result.height(), 200);
 
   // Gpu-rasterization uses 25% viewport-height tiles.
   // The +2's below are for border texels.
   host_impl_.set_has_gpu_rasterization_trigger(true);
-  host_impl_.UpdateGpuRasterizationStatus();
   EXPECT_EQ(host_impl_.gpu_rasterization_status(), GpuRasterizationStatus::ON);
   host_impl_.SetViewportSize(gfx::Size(2000, 2000));
 
   layer->set_gpu_raster_max_texture_size(host_impl_.device_viewport_size());
   result = layer->CalculateTileSize(gfx::Size(10000, 10000));
   EXPECT_EQ(result.width(), 2000 + 2 * PictureLayerTiling::kBorderTexels);
   EXPECT_EQ(result.height(), 500 + 2);
 
   // Clamp and round-up, when smaller than viewport.
   // Tile-height doubles to 50% when width shrinks to <= 50%.
   host_impl_.SetViewportSize(gfx::Size(1000, 1000));
   layer->set_gpu_raster_max_texture_size(host_impl_.device_viewport_size());
   result = layer->CalculateTileSize(gfx::Size(447, 10000));
   EXPECT_EQ(result.width(), 448);
   EXPECT_EQ(result.height(), 500 + 2);
 
   // Largest layer is 50% of viewport width (rounded up), and
   // 50% of viewport in height.
   result = layer->CalculateTileSize(gfx::Size(447, 400));
   EXPECT_EQ(result.width(), 448);
   EXPECT_EQ(result.height(), 448);
   result = layer->CalculateTileSize(gfx::Size(500, 499));
   EXPECT_EQ(result.width(), 512);
   EXPECT_EQ(result.height(), 500 + 2);
 }
 
 }  // namespace
 }  // namespace cc