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Issue 332873005: Rendering context information added to SharedQuadState (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Now plumbing rendering context IDs through WebLayerImpl Created 6 years, 6 months ago
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1 // Copyright 2011 The Chromium Authors. All rights reserved. 1 // Copyright 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "cc/trees/layer_tree_host_common.h" 5 #include "cc/trees/layer_tree_host_common.h"
6 6
7 #include <algorithm> 7 #include <algorithm>
8 8
9 #include "base/debug/trace_event.h" 9 #include "base/debug/trace_event.h"
10 #include "cc/base/math_util.h" 10 #include "cc/base/math_util.h"
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320 // state vector is empty, both of which should be impossible. 320 // state vector is empty, both of which should be impossible.
321 DCHECK(found_render_target); 321 DCHECK(found_render_target);
322 } 322 }
323 323
324 template <typename LayerType> static inline bool IsRootLayer(LayerType* layer) { 324 template <typename LayerType> static inline bool IsRootLayer(LayerType* layer) {
325 return !layer->parent(); 325 return !layer->parent();
326 } 326 }
327 327
328 template <typename LayerType> 328 template <typename LayerType>
329 static inline bool LayerIsInExisting3DRenderingContext(LayerType* layer) { 329 static inline bool LayerIsInExisting3DRenderingContext(LayerType* layer) {
330 return layer->is_3d_sorted() && layer->parent() && 330 return layer->Is3dSorted() && layer->parent() &&
331 layer->parent()->is_3d_sorted(); 331 layer->parent()->Is3dSorted();
332 } 332 }
333 333
334 template <typename LayerType> 334 template <typename LayerType>
335 static bool IsRootLayerOfNewRenderingContext(LayerType* layer) { 335 static bool IsRootLayerOfNewRenderingContext(LayerType* layer) {
336 if (layer->parent()) 336 if (layer->parent())
337 return !layer->parent()->is_3d_sorted() && layer->is_3d_sorted(); 337 return !layer->parent()->Is3dSorted() && layer->Is3dSorted();
338 338
339 return layer->is_3d_sorted(); 339 return layer->Is3dSorted();
340 } 340 }
341 341
342 template <typename LayerType> 342 template <typename LayerType>
343 static bool IsLayerBackFaceVisible(LayerType* layer) { 343 static bool IsLayerBackFaceVisible(LayerType* layer) {
344 // The current W3C spec on CSS transforms says that backface visibility should 344 // The current W3C spec on CSS transforms says that backface visibility should
345 // be determined differently depending on whether the layer is in a "3d 345 // be determined differently depending on whether the layer is in a "3d
346 // rendering context" or not. For Chromium code, we can determine whether we 346 // rendering context" or not. For Chromium code, we can determine whether we
347 // are in a 3d rendering context by checking if the parent preserves 3d. 347 // are in a 3d rendering context by checking if the parent preserves 3d.
348 348
349 if (LayerIsInExisting3DRenderingContext(layer)) 349 if (LayerIsInExisting3DRenderingContext(layer))
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2280 // If neither this layer nor any of its children were added, early out. 2280 // If neither this layer nor any of its children were added, early out.
2281 if (sorting_start_index == descendants.size()) { 2281 if (sorting_start_index == descendants.size()) {
2282 DCHECK(!layer->render_surface() || IsRootLayer(layer)); 2282 DCHECK(!layer->render_surface() || IsRootLayer(layer));
2283 return; 2283 return;
2284 } 2284 }
2285 2285
2286 // If preserves-3d then sort all the descendants in 3D so that they can be 2286 // If preserves-3d then sort all the descendants in 3D so that they can be
2287 // drawn from back to front. If the preserves-3d property is also set on the 2287 // drawn from back to front. If the preserves-3d property is also set on the
2288 // parent then skip the sorting as the parent will sort all the descendants 2288 // parent then skip the sorting as the parent will sort all the descendants
2289 // anyway. 2289 // anyway.
2290 if (globals.layer_sorter && descendants.size() && layer->is_3d_sorted() && 2290 if (globals.layer_sorter && descendants.size() && layer->Is3dSorted() &&
2291 !LayerIsInExisting3DRenderingContext(layer)) { 2291 !LayerIsInExisting3DRenderingContext(layer)) {
2292 SortLayers(descendants.begin() + sorting_start_index, 2292 SortLayers(descendants.begin() + sorting_start_index,
2293 descendants.end(), 2293 descendants.end(),
2294 globals.layer_sorter); 2294 globals.layer_sorter);
2295 } 2295 }
2296 2296
2297 UpdateAccumulatedSurfaceState<LayerType>( 2297 UpdateAccumulatedSurfaceState<LayerType>(
2298 layer, local_drawable_content_rect_of_subtree, accumulated_surface_state); 2298 layer, local_drawable_content_rect_of_subtree, accumulated_surface_state);
2299 2299
2300 if (layer->HasContributingDelegatedRenderPasses()) { 2300 if (layer->HasContributingDelegatedRenderPasses()) {
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2407 inputs->current_render_surface_layer_list_id); 2407 inputs->current_render_surface_layer_list_id);
2408 2408
2409 // The dummy layer list should not have been used. 2409 // The dummy layer list should not have been used.
2410 DCHECK_EQ(0u, dummy_layer_list.size()); 2410 DCHECK_EQ(0u, dummy_layer_list.size());
2411 // A root layer render_surface should always exist after 2411 // A root layer render_surface should always exist after
2412 // CalculateDrawProperties. 2412 // CalculateDrawProperties.
2413 DCHECK(inputs->root_layer->render_surface()); 2413 DCHECK(inputs->root_layer->render_surface());
2414 } 2414 }
2415 2415
2416 } // namespace cc 2416 } // namespace cc
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