cc : Compute visible rects dynamically (1)

cc/trees/layer_tree_host_common.cc

 // Copyright 2011 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/trees/layer_tree_host_common.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 
@@ skipping 65 matching lines @@
     float page_scale_factor,
     const LayerImpl* page_scale_layer,
     const LayerImpl* inner_viewport_scroll_layer,
     const LayerImpl* outer_viewport_scroll_layer,
     const gfx::Vector2dF& elastic_overscroll,
     const LayerImpl* elastic_overscroll_application_layer,
     int max_texture_size,
     bool can_render_to_separate_surface,
     bool can_adjust_raster_scales,
     bool verify_clip_tree_calculations,
+    bool verify_visible_rect_calculations,
     bool verify_transform_tree_calculations,
     LayerImplList* render_surface_layer_list,
     PropertyTrees* property_trees)
     : root_layer(root_layer),
       device_viewport_size(device_viewport_size),
       device_transform(device_transform),
       device_scale_factor(device_scale_factor),
       page_scale_factor(page_scale_factor),
       page_scale_layer(page_scale_layer),
       inner_viewport_scroll_layer(inner_viewport_scroll_layer),
       outer_viewport_scroll_layer(outer_viewport_scroll_layer),
       elastic_overscroll(elastic_overscroll),
       elastic_overscroll_application_layer(
           elastic_overscroll_application_layer),
       max_texture_size(max_texture_size),
       can_render_to_separate_surface(can_render_to_separate_surface),
       can_adjust_raster_scales(can_adjust_raster_scales),
       verify_clip_tree_calculations(verify_clip_tree_calculations),
+      verify_visible_rect_calculations(verify_visible_rect_calculations),
       verify_transform_tree_calculations(verify_transform_tree_calculations),
       render_surface_layer_list(render_surface_layer_list),
       property_trees(property_trees) {}
 
 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting::
     CalcDrawPropsImplInputsForTesting(LayerImpl* root_layer,
                                       const gfx::Size& device_viewport_size,
                                       const gfx::Transform& device_transform,
                                       float device_scale_factor,
                                       LayerImplList* render_surface_layer_list)
     : CalcDrawPropsImplInputs(root_layer,
                               device_viewport_size,
                               device_transform,
                               device_scale_factor,
                               1.f,
                               NULL,
                               NULL,
                               NULL,
                               gfx::Vector2dF(),
                               NULL,
                               std::numeric_limits<int>::max() / 2,
                               true,
                               false,
                               true,
                               true,
+                              true,
                               render_surface_layer_list,
                               GetPropertyTrees(root_layer)) {
   DCHECK(root_layer);
   DCHECK(render_surface_layer_list);
 }
 
 LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting::
     CalcDrawPropsImplInputsForTesting(LayerImpl* root_layer,
                                       const gfx::Size& device_viewport_size,
                                       const gfx::Transform& device_transform,
@@ skipping 409 matching lines @@
       }
 
       draw_property_utils::BuildPropertyTreesAndComputeVisibleRects(
           inputs->root_layer, inputs->page_scale_layer,
           inputs->inner_viewport_scroll_layer,
           inputs->outer_viewport_scroll_layer,
           inputs->elastic_overscroll_application_layer,
           inputs->elastic_overscroll, inputs->page_scale_factor,
           inputs->device_scale_factor, gfx::Rect(inputs->device_viewport_size),
           inputs->device_transform, inputs->can_render_to_separate_surface,
-          inputs->property_trees, &visible_layer_list);
+          inputs->verify_visible_rect_calculations, inputs->property_trees,
+          &visible_layer_list);
 
       // Property trees are normally constructed on the main thread and
       // passed to compositor thread. Source to parent updates on them are not
       // allowed in the compositor thread. Some tests build them on the
       // compositor thread, so we need to explicitly disallow source to parent
       // updates when they are built on compositor thread.
       inputs->property_trees->transform_tree
           .set_source_to_parent_updates_allowed(false);
       if (should_measure_property_tree_performance) {
         TRACE_EVENT_END0(
@@ skipping 21 matching lines @@
       // Similarly, the device viewport and device transform are shared
       // by both trees.
       inputs->property_trees->clip_tree.SetViewportClip(
           gfx::RectF(gfx::SizeF(inputs->device_viewport_size)));
       inputs->property_trees->transform_tree.SetDeviceTransform(
           inputs->device_transform, inputs->root_layer->position());
       inputs->property_trees->transform_tree.SetDeviceTransformScaleFactor(
           inputs->device_transform);
       draw_property_utils::ComputeVisibleRects(
           inputs->root_layer, inputs->property_trees,
-          inputs->can_render_to_separate_surface, &visible_layer_list);
+          inputs->can_render_to_separate_surface,
+          inputs->verify_visible_rect_calculations, &visible_layer_list);
       break;
     }
   }
 
   if (should_measure_property_tree_performance) {
     TRACE_EVENT_BEGIN0(TRACE_DISABLED_BY_DEFAULT("cc.debug.cdp-perf"),
                        "LayerTreeHostCommon::CalculateDrawProperties");
   }
 
   DCHECK(inputs->can_render_to_separate_surface ==
@@ skipping 105 matching lines @@
 
 PropertyTrees* GetPropertyTrees(Layer* layer) {
   return layer->GetLayerTree()->property_trees();
 }
 
 PropertyTrees* GetPropertyTrees(LayerImpl* layer) {
   return layer->layer_tree_impl()->property_trees();
 }
 
 }  // namespace cc