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// Copyright 2016 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/resources/ui_resource_manager.h"
#include <algorithm>
#include "cc/resources/scoped_ui_resource.h"
namespace cc {
UIResourceManager::UIResourceManager() : next_ui_resource_id_(1) {}
UIResourceManager::~UIResourceManager() = default;
UIResourceId UIResourceManager::CreateUIResource(UIResourceClient* client) {
DCHECK(client);
UIResourceId next_id = next_ui_resource_id_++;
DCHECK(ui_resource_client_map_.find(next_id) ==
ui_resource_client_map_.end());
bool resource_lost = false;
UIResourceRequest request(UIResourceRequest::UI_RESOURCE_CREATE, next_id,
client->GetBitmap(next_id, resource_lost));
ui_resource_request_queue_.push_back(request);
UIResourceClientData data;
data.client = client;
data.size = request.GetBitmap().GetSize();
ui_resource_client_map_[request.GetId()] = data;
return request.GetId();
}
void UIResourceManager::DeleteUIResource(UIResourceId uid) {
const auto iter = ui_resource_client_map_.find(uid);
if (iter == ui_resource_client_map_.end())
return;
UIResourceRequest request(UIResourceRequest::UI_RESOURCE_DELETE, uid);
ui_resource_request_queue_.push_back(request);
ui_resource_client_map_.erase(iter);
}
void UIResourceManager::RecreateUIResources() {
for (const auto& resource : ui_resource_client_map_) {
UIResourceId uid = resource.first;
const UIResourceClientData& data = resource.second;
bool resource_lost = true;
auto it = std::find_if(ui_resource_request_queue_.begin(),
ui_resource_request_queue_.end(),
[uid](const UIResourceRequest& request) {
return request.GetId() == uid;
});
if (it == ui_resource_request_queue_.end()) {
UIResourceRequest request(UIResourceRequest::UI_RESOURCE_CREATE, uid,
data.client->GetBitmap(uid, resource_lost));
ui_resource_request_queue_.push_back(request);
}
}
}
gfx::Size UIResourceManager::GetUIResourceSize(UIResourceId uid) const {
const auto iter = ui_resource_client_map_.find(uid);
if (iter == ui_resource_client_map_.end())
return gfx::Size();
const UIResourceClientData& data = iter->second;
return data.size;
}
std::vector<UIResourceRequest> UIResourceManager::TakeUIResourcesRequests() {
UIResourceRequestQueue result;
result.swap(ui_resource_request_queue_);
return result;
}
UIResourceId UIResourceManager::GetOrCreateUIResource(const SkBitmap& bitmap) {
DCHECK(bitmap.pixelRef()->isImmutable());
const auto resource = owned_shared_resources_.find(bitmap.pixelRef());
if (resource != owned_shared_resources_.end())
return resource->second->id();
auto scoped_resource =
ScopedUIResource::Create(this, UIResourceBitmap(bitmap));
auto id = scoped_resource->id();
owned_shared_resources_[bitmap.pixelRef()] = std::move(scoped_resource);
return id;
}
} // namespace cc
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