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Unified Diff: cc/surfaces/surface_aggregator.cc

Issue 1535833002: Delete CC. (Closed) Base URL: git@github.com:domokit/mojo.git@moz-5
Patch Set: rebase Created 4 years, 11 months ago
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Index: cc/surfaces/surface_aggregator.cc
diff --git a/cc/surfaces/surface_aggregator.cc b/cc/surfaces/surface_aggregator.cc
deleted file mode 100644
index 1cab3abd050ada0b08f4369d2a6286fae897f3e5..0000000000000000000000000000000000000000
--- a/cc/surfaces/surface_aggregator.cc
+++ /dev/null
@@ -1,512 +0,0 @@
-// Copyright 2014 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/surfaces/surface_aggregator.h"
-
-#include <map>
-
-#include "base/bind.h"
-#include "base/containers/hash_tables.h"
-#include "base/logging.h"
-#include "base/trace_event/trace_event.h"
-#include "cc/base/math_util.h"
-#include "cc/output/compositor_frame.h"
-#include "cc/output/delegated_frame_data.h"
-#include "cc/quads/draw_quad.h"
-#include "cc/quads/render_pass_draw_quad.h"
-#include "cc/quads/shared_quad_state.h"
-#include "cc/quads/surface_draw_quad.h"
-#include "cc/surfaces/surface.h"
-#include "cc/surfaces/surface_factory.h"
-#include "cc/surfaces/surface_manager.h"
-
-namespace cc {
-namespace {
-
-void MoveMatchingRequests(
- RenderPassId id,
- std::multimap<RenderPassId, CopyOutputRequest*>* copy_requests,
- ScopedPtrVector<CopyOutputRequest>* output_requests) {
- auto request_range = copy_requests->equal_range(id);
- for (auto it = request_range.first; it != request_range.second; ++it) {
- DCHECK(it->second);
- output_requests->push_back(scoped_ptr<CopyOutputRequest>(it->second));
- it->second = nullptr;
- }
- copy_requests->erase(request_range.first, request_range.second);
-}
-
-} // namespace
-
-SurfaceAggregator::SurfaceAggregator(SurfaceManager* manager,
- ResourceProvider* provider)
- : manager_(manager), provider_(provider), next_render_pass_id_(1) {
- DCHECK(manager_);
-}
-
-SurfaceAggregator::~SurfaceAggregator() {}
-
-// Create a clip rect for an aggregated quad from the original clip rect and
-// the clip rect from the surface it's on.
-SurfaceAggregator::ClipData SurfaceAggregator::CalculateClipRect(
- const ClipData& surface_clip,
- const ClipData& quad_clip,
- const gfx::Transform& content_to_target_transform) {
- ClipData out_clip;
- if (surface_clip.is_clipped)
- out_clip = surface_clip;
-
- if (quad_clip.is_clipped) {
- // TODO(jamesr): This only works if content_to_target_transform maps integer
- // rects to integer rects.
- gfx::Rect final_clip = MathUtil::MapEnclosingClippedRect(
- content_to_target_transform, quad_clip.rect);
- if (out_clip.is_clipped)
- out_clip.rect.Intersect(final_clip);
- else
- out_clip.rect = final_clip;
- out_clip.is_clipped = true;
- }
-
- return out_clip;
-}
-
-class SurfaceAggregator::RenderPassIdAllocator {
- public:
- explicit RenderPassIdAllocator(int* next_index) : next_index_(next_index) {}
- ~RenderPassIdAllocator() {}
-
- void AddKnownPass(RenderPassId id) {
- if (id_to_index_map_.find(id) != id_to_index_map_.end())
- return;
- id_to_index_map_[id] = (*next_index_)++;
- }
-
- RenderPassId Remap(RenderPassId id) {
- DCHECK(id_to_index_map_.find(id) != id_to_index_map_.end());
- return RenderPassId(1, id_to_index_map_[id]);
- }
-
- private:
- base::hash_map<RenderPassId, int> id_to_index_map_;
- int* next_index_;
-
- DISALLOW_COPY_AND_ASSIGN(RenderPassIdAllocator);
-};
-
-static void UnrefHelper(base::WeakPtr<SurfaceFactory> surface_factory,
- const ReturnedResourceArray& resources,
- BlockingTaskRunner* main_thread_task_runner) {
- if (surface_factory)
- surface_factory->UnrefResources(resources);
-}
-
-RenderPassId SurfaceAggregator::RemapPassId(RenderPassId surface_local_pass_id,
- SurfaceId surface_id) {
- RenderPassIdAllocator* allocator = render_pass_allocator_map_.get(surface_id);
- if (!allocator) {
- allocator = new RenderPassIdAllocator(&next_render_pass_id_);
- render_pass_allocator_map_.set(surface_id, make_scoped_ptr(allocator));
- }
- allocator->AddKnownPass(surface_local_pass_id);
- return allocator->Remap(surface_local_pass_id);
-}
-
-int SurfaceAggregator::ChildIdForSurface(Surface* surface) {
- SurfaceToResourceChildIdMap::iterator it =
- surface_id_to_resource_child_id_.find(surface->surface_id());
- if (it == surface_id_to_resource_child_id_.end()) {
- int child_id =
- provider_->CreateChild(base::Bind(&UnrefHelper, surface->factory()));
- surface_id_to_resource_child_id_[surface->surface_id()] = child_id;
- return child_id;
- } else {
- return it->second;
- }
-}
-
-static ResourceProvider::ResourceId ResourceRemapHelper(
- bool* invalid_frame,
- const ResourceProvider::ResourceIdMap& child_to_parent_map,
- ResourceProvider::ResourceIdArray* resources_in_frame,
- ResourceProvider::ResourceId id) {
- ResourceProvider::ResourceIdMap::const_iterator it =
- child_to_parent_map.find(id);
- if (it == child_to_parent_map.end()) {
- *invalid_frame = true;
- return 0;
- }
-
- DCHECK_EQ(it->first, id);
- ResourceProvider::ResourceId remapped_id = it->second;
- resources_in_frame->push_back(id);
- return remapped_id;
-}
-
-bool SurfaceAggregator::TakeResources(Surface* surface,
- const DelegatedFrameData* frame_data,
- RenderPassList* render_pass_list) {
- RenderPass::CopyAll(frame_data->render_pass_list, render_pass_list);
- if (!provider_) // TODO(jamesr): hack for unit tests that don't set up rp
- return false;
-
- int child_id = ChildIdForSurface(surface);
- if (surface->factory())
- surface->factory()->RefResources(frame_data->resource_list);
- provider_->ReceiveFromChild(child_id, frame_data->resource_list);
-
- typedef ResourceProvider::ResourceIdArray IdArray;
- IdArray referenced_resources;
-
- bool invalid_frame = false;
- DrawQuad::ResourceIteratorCallback remap =
- base::Bind(&ResourceRemapHelper,
- &invalid_frame,
- provider_->GetChildToParentMap(child_id),
- &referenced_resources);
- for (const auto& render_pass : *render_pass_list) {
- for (const auto& quad : render_pass->quad_list)
- quad->IterateResources(remap);
- }
-
- if (!invalid_frame)
- provider_->DeclareUsedResourcesFromChild(child_id, referenced_resources);
-
- return invalid_frame;
-}
-
-gfx::Rect SurfaceAggregator::DamageRectForSurface(const Surface* surface,
- const RenderPass& source,
- const gfx::Rect& full_rect) {
- int previous_index = previous_contained_surfaces_[surface->surface_id()];
- if (previous_index == surface->frame_index())
- return gfx::Rect();
- else if (previous_index == surface->frame_index() - 1)
- return source.damage_rect;
- return full_rect;
-}
-
-void SurfaceAggregator::HandleSurfaceQuad(
- const SurfaceDrawQuad* surface_quad,
- const gfx::Transform& content_to_target_transform,
- const ClipData& clip_rect,
- RenderPass* dest_pass) {
- SurfaceId surface_id = surface_quad->surface_id;
- // If this surface's id is already in our referenced set then it creates
- // a cycle in the graph and should be dropped.
- if (referenced_surfaces_.count(surface_id))
- return;
- Surface* surface = manager_->GetSurfaceForId(surface_id);
- if (!surface) {
- contained_surfaces_[surface_id] = 0;
- return;
- }
- contained_surfaces_[surface_id] = surface->frame_index();
- const CompositorFrame* frame = surface->GetEligibleFrame();
- if (!frame)
- return;
- const DelegatedFrameData* frame_data = frame->delegated_frame_data.get();
- if (!frame_data)
- return;
-
- std::multimap<RenderPassId, CopyOutputRequest*> copy_requests;
- surface->TakeCopyOutputRequests(&copy_requests);
-
- RenderPassList render_pass_list;
- bool invalid_frame = TakeResources(surface, frame_data, &render_pass_list);
- if (invalid_frame) {
- for (auto& request : copy_requests) {
- request.second->SendEmptyResult();
- delete request.second;
- }
- return;
- }
-
- SurfaceSet::iterator it = referenced_surfaces_.insert(surface_id).first;
-
- bool merge_pass = surface_quad->opacity() == 1.f && copy_requests.empty();
-
- gfx::Rect surface_damage = DamageRectForSurface(
- surface, *render_pass_list.back(), surface_quad->visible_rect);
- const RenderPassList& referenced_passes = render_pass_list;
- size_t passes_to_copy =
- merge_pass ? referenced_passes.size() - 1 : referenced_passes.size();
- for (size_t j = 0; j < passes_to_copy; ++j) {
- const RenderPass& source = *referenced_passes[j];
-
- size_t sqs_size = source.shared_quad_state_list.size();
- size_t dq_size = source.quad_list.size();
- scoped_ptr<RenderPass> copy_pass(RenderPass::Create(sqs_size, dq_size));
-
- RenderPassId remapped_pass_id = RemapPassId(source.id, surface_id);
-
- copy_pass->SetAll(remapped_pass_id, source.output_rect, gfx::Rect(),
- source.transform_to_root_target,
- source.has_transparent_background);
-
- MoveMatchingRequests(source.id, &copy_requests, &copy_pass->copy_requests);
-
- // Contributing passes aggregated in to the pass list need to take the
- // transform of the surface quad into account to update their transform to
- // the root surface.
- copy_pass->transform_to_root_target.ConcatTransform(
- surface_quad->quadTransform());
- copy_pass->transform_to_root_target.ConcatTransform(
- content_to_target_transform);
- copy_pass->transform_to_root_target.ConcatTransform(
- dest_pass->transform_to_root_target);
-
- CopyQuadsToPass(source.quad_list, source.shared_quad_state_list,
- gfx::Transform(), ClipData(), copy_pass.get(), surface_id);
-
- if (j == referenced_passes.size() - 1)
- surface_damage = gfx::UnionRects(surface_damage, copy_pass->damage_rect);
-
- dest_pass_list_->push_back(copy_pass.Pass());
- }
-
- const RenderPass& last_pass = *render_pass_list.back();
- if (merge_pass) {
- // TODO(jamesr): Clean up last pass special casing.
- const QuadList& quads = last_pass.quad_list;
-
- gfx::Transform surface_transform = surface_quad->quadTransform();
- surface_transform.ConcatTransform(content_to_target_transform);
-
- // Intersect the transformed visible rect and the clip rect to create a
- // smaller cliprect for the quad.
- ClipData surface_quad_clip_rect(
- true, MathUtil::MapEnclosingClippedRect(surface_quad->quadTransform(),
- surface_quad->visible_rect));
- if (surface_quad->isClipped())
- surface_quad_clip_rect.rect.Intersect(surface_quad->clipRect());
-
- ClipData quads_clip = CalculateClipRect(clip_rect, surface_quad_clip_rect,
- content_to_target_transform);
-
- CopyQuadsToPass(quads, last_pass.shared_quad_state_list, surface_transform,
- quads_clip, dest_pass, surface_id);
- } else {
- RenderPassId remapped_pass_id = RemapPassId(last_pass.id, surface_id);
-
- CopySharedQuadState(surface_quad->shared_quad_state,
- content_to_target_transform, clip_rect, dest_pass);
-
- SharedQuadState* shared_quad_state =
- dest_pass->shared_quad_state_list.back();
- RenderPassDrawQuad* quad =
- dest_pass->CreateAndAppendDrawQuad<RenderPassDrawQuad>();
- quad->SetNew(shared_quad_state,
- surface_quad->rect,
- surface_quad->visible_rect,
- remapped_pass_id,
- 0,
- gfx::Vector2dF(),
- gfx::Size(),
- FilterOperations(),
- gfx::Vector2dF(),
- FilterOperations());
- }
- dest_pass->damage_rect =
- gfx::UnionRects(dest_pass->damage_rect,
- MathUtil::MapEnclosingClippedRect(
- surface_quad->quadTransform(), surface_damage));
-
- referenced_surfaces_.erase(it);
-}
-
-void SurfaceAggregator::CopySharedQuadState(
- const SharedQuadState* source_sqs,
- const gfx::Transform& content_to_target_transform,
- const ClipData& clip_rect,
- RenderPass* dest_render_pass) {
- SharedQuadState* copy_shared_quad_state =
- dest_render_pass->CreateAndAppendSharedQuadState();
- copy_shared_quad_state->CopyFrom(source_sqs);
- // content_to_target_transform contains any transformation that may exist
- // between the context that these quads are being copied from (i.e. the
- // surface's draw transform when aggregated from within a surface) to the
- // target space of the pass. This will be identity except when copying the
- // root draw pass from a surface into a pass when the surface draw quad's
- // transform is not identity.
- copy_shared_quad_state->content_to_target_transform.ConcatTransform(
- content_to_target_transform);
-
- ClipData new_clip_rect = CalculateClipRect(
- clip_rect, ClipData(source_sqs->is_clipped, source_sqs->clip_rect),
- content_to_target_transform);
- copy_shared_quad_state->is_clipped = new_clip_rect.is_clipped;
- copy_shared_quad_state->clip_rect = new_clip_rect.rect;
-}
-
-void SurfaceAggregator::CopyQuadsToPass(
- const QuadList& source_quad_list,
- const SharedQuadStateList& source_shared_quad_state_list,
- const gfx::Transform& content_to_target_transform,
- const ClipData& clip_rect,
- RenderPass* dest_pass,
- SurfaceId surface_id) {
- const SharedQuadState* last_copied_source_shared_quad_state = NULL;
-
- SharedQuadStateList::ConstIterator sqs_iter =
- source_shared_quad_state_list.begin();
- for (const auto& quad : source_quad_list) {
- while (quad->shared_quad_state != *sqs_iter) {
- ++sqs_iter;
- DCHECK(sqs_iter != source_shared_quad_state_list.end());
- }
- DCHECK_EQ(quad->shared_quad_state, *sqs_iter);
-
- if (quad->material == DrawQuad::SURFACE_CONTENT) {
- const SurfaceDrawQuad* surface_quad = SurfaceDrawQuad::MaterialCast(quad);
- HandleSurfaceQuad(surface_quad, content_to_target_transform, clip_rect,
- dest_pass);
- } else {
- if (quad->shared_quad_state != last_copied_source_shared_quad_state) {
- CopySharedQuadState(quad->shared_quad_state,
- content_to_target_transform, clip_rect, dest_pass);
- last_copied_source_shared_quad_state = quad->shared_quad_state;
- }
- if (quad->material == DrawQuad::RENDER_PASS) {
- const RenderPassDrawQuad* pass_quad =
- RenderPassDrawQuad::MaterialCast(quad);
- RenderPassId original_pass_id = pass_quad->render_pass_id;
- RenderPassId remapped_pass_id =
- RemapPassId(original_pass_id, surface_id);
-
- gfx::Rect pass_damage;
- for (const auto* pass : *dest_pass_list_) {
- if (pass->id == remapped_pass_id) {
- pass_damage = pass->damage_rect;
- break;
- }
- }
-
- DrawQuad* rpdq = dest_pass->CopyFromAndAppendRenderPassDrawQuad(
- pass_quad, dest_pass->shared_quad_state_list.back(),
- remapped_pass_id);
- dest_pass->damage_rect = gfx::UnionRects(
- dest_pass->damage_rect, MathUtil::MapEnclosingClippedRect(
- rpdq->quadTransform(), pass_damage));
- } else {
- dest_pass->CopyFromAndAppendDrawQuad(
- quad, dest_pass->shared_quad_state_list.back());
- }
- }
- }
-}
-
-void SurfaceAggregator::CopyPasses(const DelegatedFrameData* frame_data,
- Surface* surface) {
- RenderPassList source_pass_list;
-
- // The root surface is allowed to have copy output requests, so grab them
- // off its render passes.
- std::multimap<RenderPassId, CopyOutputRequest*> copy_requests;
- surface->TakeCopyOutputRequests(&copy_requests);
-
- bool invalid_frame = TakeResources(surface, frame_data, &source_pass_list);
- DCHECK(!invalid_frame);
-
- for (size_t i = 0; i < source_pass_list.size(); ++i) {
- const RenderPass& source = *source_pass_list[i];
-
- size_t sqs_size = source.shared_quad_state_list.size();
- size_t dq_size = source.quad_list.size();
- scoped_ptr<RenderPass> copy_pass(RenderPass::Create(sqs_size, dq_size));
-
- MoveMatchingRequests(source.id, &copy_requests, &copy_pass->copy_requests);
-
- RenderPassId remapped_pass_id =
- RemapPassId(source.id, surface->surface_id());
-
- gfx::Rect damage_rect =
- (i < source_pass_list.size() - 1)
- ? gfx::Rect()
- : DamageRectForSurface(surface, source, source.output_rect);
- copy_pass->SetAll(remapped_pass_id, source.output_rect, damage_rect,
- source.transform_to_root_target,
- source.has_transparent_background);
-
- CopyQuadsToPass(source.quad_list, source.shared_quad_state_list,
- gfx::Transform(), ClipData(), copy_pass.get(),
- surface->surface_id());
-
- dest_pass_list_->push_back(copy_pass.Pass());
- }
-}
-
-void SurfaceAggregator::RemoveUnreferencedChildren() {
- for (const auto& surface : previous_contained_surfaces_) {
- if (!contained_surfaces_.count(surface.first)) {
- SurfaceToResourceChildIdMap::iterator it =
- surface_id_to_resource_child_id_.find(surface.first);
- if (it != surface_id_to_resource_child_id_.end()) {
- provider_->DestroyChild(it->second);
- surface_id_to_resource_child_id_.erase(it);
- }
-
- Surface* surface_ptr = manager_->GetSurfaceForId(surface.first);
- if (surface_ptr)
- surface_ptr->RunDrawCallbacks(SurfaceDrawStatus::DRAW_SKIPPED);
- }
- }
-}
-
-scoped_ptr<CompositorFrame> SurfaceAggregator::Aggregate(SurfaceId surface_id) {
- Surface* surface = manager_->GetSurfaceForId(surface_id);
- DCHECK(surface);
- contained_surfaces_[surface_id] = surface->frame_index();
- const CompositorFrame* root_surface_frame = surface->GetEligibleFrame();
- if (!root_surface_frame)
- return nullptr;
- TRACE_EVENT0("cc", "SurfaceAggregator::Aggregate");
-
- scoped_ptr<CompositorFrame> frame(new CompositorFrame);
- frame->delegated_frame_data = make_scoped_ptr(new DelegatedFrameData);
-
- DCHECK(root_surface_frame->delegated_frame_data);
-
- SurfaceSet::iterator it = referenced_surfaces_.insert(surface_id).first;
-
- dest_resource_list_ = &frame->delegated_frame_data->resource_list;
- dest_pass_list_ = &frame->delegated_frame_data->render_pass_list;
-
- CopyPasses(root_surface_frame->delegated_frame_data.get(), surface);
-
- referenced_surfaces_.erase(it);
- DCHECK(referenced_surfaces_.empty());
-
- if (dest_pass_list_->empty())
- return nullptr;
-
- dest_pass_list_ = NULL;
- RemoveUnreferencedChildren();
- contained_surfaces_.swap(previous_contained_surfaces_);
- contained_surfaces_.clear();
-
- for (SurfaceIndexMap::iterator it = previous_contained_surfaces_.begin();
- it != previous_contained_surfaces_.end();
- ++it) {
- Surface* surface = manager_->GetSurfaceForId(it->first);
- if (surface)
- surface->TakeLatencyInfo(&frame->metadata.latency_info);
- }
-
- // TODO(jamesr): Aggregate all resource references into the returned frame's
- // resource list.
-
- return frame.Pass();
-}
-
-void SurfaceAggregator::ReleaseResources(SurfaceId surface_id) {
- SurfaceToResourceChildIdMap::iterator it =
- surface_id_to_resource_child_id_.find(surface_id);
- if (it != surface_id_to_resource_child_id_.end()) {
- provider_->DestroyChild(it->second);
- surface_id_to_resource_child_id_.erase(it);
- }
-}
-
-} // namespace cc
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