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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "CompositableInProcessManager.h"
#include "mozilla/layers/CompositorThread.h"
namespace mozilla::layers {
std::map<std::pair<base::ProcessId, uint64_t>, RefPtr<WebRenderImageHost>>
CompositableInProcessManager::sCompositables;
StaticMutex CompositableInProcessManager::sMutex;
uint32_t CompositableInProcessManager::sNamespace(0);
Atomic<uint32_t> CompositableInProcessManager::sNextResourceId(1);
Atomic<uint64_t> CompositableInProcessManager::sNextHandle(1);
/* static */ void CompositableInProcessManager::Initialize(
uint32_t aNamespace) {
MOZ_ASSERT(NS_IsMainThread());
sNamespace = aNamespace;
}
/* static */ void CompositableInProcessManager::Shutdown() {
MOZ_ASSERT(NS_IsMainThread());
StaticMutexAutoLock lock(sMutex);
sCompositables.clear();
}
/* static */ RefPtr<WebRenderImageHost> CompositableInProcessManager::Add(
const CompositableHandle& aHandle, base::ProcessId aForPid,
const TextureInfo& aTextureInfo) {
MOZ_RELEASE_ASSERT(aHandle.Value());
StaticMutexAutoLock lock(sMutex);
const auto key = std::pair(aForPid, aHandle.Value());
if (sCompositables.find(key) != sCompositables.end()) {
MOZ_ASSERT_UNREACHABLE("Duplicate handle!");
return nullptr;
}
auto host = MakeRefPtr<WebRenderImageHost>(aTextureInfo);
sCompositables[key] = host;
host->SetAsyncRef(AsyncCompositableRef(aForPid, aHandle));
return host;
}
/* static */ RefPtr<WebRenderImageHost> CompositableInProcessManager::Find(
const CompositableHandle& aHandle, base::ProcessId aForPid) {
StaticMutexAutoLock lock(sMutex);
const auto key = std::pair(aForPid, aHandle.Value());
const auto i = sCompositables.find(key);
if (NS_WARN_IF(i == sCompositables.end())) {
return nullptr;
}
return i->second;
}
/* static */ void CompositableInProcessManager::Release(
const CompositableHandle& aHandle, base::ProcessId aForPid) {
StaticMutexAutoLock lock(sMutex);
const auto key = std::pair(aForPid, aHandle.Value());
const auto i = sCompositables.find(key);
if (NS_WARN_IF(i == sCompositables.end())) {
return;
}
sCompositables.erase(i);
}
} // namespace mozilla::layers