| // Copyright 2019 The Dawn & Tint Authors |
| // |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are met: |
| // |
| // 1. Redistributions of source code must retain the above copyright notice, this |
| // list of conditions and the following disclaimer. |
| // |
| // 2. Redistributions in binary form must reproduce the above copyright notice, |
| // this list of conditions and the following disclaimer in the documentation |
| // and/or other materials provided with the distribution. |
| // |
| // 3. Neither the name of the copyright holder nor the names of its |
| // contributors may be used to endorse or promote products derived from |
| // this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| // AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| // DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE |
| // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR |
| // SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| // OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #include "dawn/wire/client/Client.h" |
| |
| #include "dawn/common/Compiler.h" |
| #include "dawn/wire/client/Device.h" |
| |
| namespace dawn::wire::client { |
| |
| namespace { |
| |
| class NoopCommandSerializer final : public CommandSerializer { |
| public: |
| static NoopCommandSerializer* GetInstance() { |
| static NoopCommandSerializer gNoopCommandSerializer; |
| return &gNoopCommandSerializer; |
| } |
| |
| ~NoopCommandSerializer() override = default; |
| |
| size_t GetMaximumAllocationSize() const final { return 0; } |
| void* GetCmdSpace(size_t size) final { return nullptr; } |
| bool Flush() final { return false; } |
| }; |
| |
| } // anonymous namespace |
| |
| Client::Client(CommandSerializer* serializer, MemoryTransferService* memoryTransferService) |
| : ClientBase(), mSerializer(serializer), mMemoryTransferService(memoryTransferService) { |
| if (mMemoryTransferService == nullptr) { |
| // If a MemoryTransferService is not provided, fall back to inline memory. |
| mOwnedMemoryTransferService = CreateInlineMemoryTransferService(); |
| mMemoryTransferService = mOwnedMemoryTransferService.get(); |
| } |
| } |
| |
| Client::~Client() { |
| DestroyAllObjects(); |
| } |
| |
| void Client::DestroyAllObjects() { |
| // Free all devices first since they may hold references to other objects |
| // like the default queue. The Device destructor releases the default queue, |
| // which would be invalid if the queue was already freed. |
| while (!mObjects[ObjectType::Device].empty()) { |
| ObjectBase* object = mObjects[ObjectType::Device].head()->value(); |
| |
| DestroyObjectCmd cmd; |
| cmd.objectType = ObjectType::Device; |
| cmd.objectId = object->GetWireId(); |
| SerializeCommand(cmd); |
| mObjectStores[ObjectType::Device].Free(object); |
| } |
| |
| for (auto& objectList : mObjects) { |
| ObjectType objectType = static_cast<ObjectType>(&objectList - mObjects.data()); |
| if (objectType == ObjectType::Device) { |
| continue; |
| } |
| while (!objectList.empty()) { |
| ObjectBase* object = objectList.head()->value(); |
| |
| DestroyObjectCmd cmd; |
| cmd.objectType = objectType; |
| cmd.objectId = object->GetWireId(); |
| SerializeCommand(cmd); |
| mObjectStores[objectType].Free(object); |
| } |
| } |
| } |
| |
| ReservedTexture Client::ReserveTexture(WGPUDevice device, const WGPUTextureDescriptor* descriptor) { |
| Texture* texture = Make<Texture>(descriptor); |
| |
| ReservedTexture result; |
| result.texture = ToAPI(texture); |
| result.id = texture->GetWireId(); |
| result.generation = texture->GetWireGeneration(); |
| result.deviceId = FromAPI(device)->GetWireId(); |
| result.deviceGeneration = FromAPI(device)->GetWireGeneration(); |
| return result; |
| } |
| |
| ReservedSwapChain Client::ReserveSwapChain(WGPUDevice device, |
| const WGPUSwapChainDescriptor* descriptor) { |
| SwapChain* swapChain = Make<SwapChain>(nullptr, descriptor); |
| |
| ReservedSwapChain result; |
| result.swapchain = ToAPI(swapChain); |
| result.id = swapChain->GetWireId(); |
| result.generation = swapChain->GetWireGeneration(); |
| result.deviceId = FromAPI(device)->GetWireId(); |
| result.deviceGeneration = FromAPI(device)->GetWireGeneration(); |
| return result; |
| } |
| |
| ReservedDevice Client::ReserveDevice(WGPUInstance instance) { |
| Device* device = Make<Device>(FromAPI(instance)->GetEventManagerHandle(), nullptr); |
| |
| ReservedDevice result; |
| result.device = ToAPI(device); |
| result.id = device->GetWireId(); |
| result.generation = device->GetWireGeneration(); |
| return result; |
| } |
| |
| ReservedInstance Client::ReserveInstance(const WGPUInstanceDescriptor* descriptor) { |
| Instance* instance = Make<Instance>(); |
| |
| if (instance->Initialize(descriptor) != WireResult::Success) { |
| Free(instance); |
| return {nullptr, 0, 0}; |
| } |
| |
| // Reserve an EventManager for the given instance and make the association in the map. |
| mEventManagers.emplace(ObjectHandle(instance->GetWireId(), instance->GetWireGeneration()), |
| std::make_unique<EventManager>()); |
| |
| ReservedInstance result; |
| result.instance = ToAPI(instance); |
| result.id = instance->GetWireId(); |
| result.generation = instance->GetWireGeneration(); |
| return result; |
| } |
| |
| void Client::ReclaimTextureReservation(const ReservedTexture& reservation) { |
| Free(FromAPI(reservation.texture)); |
| } |
| |
| void Client::ReclaimSwapChainReservation(const ReservedSwapChain& reservation) { |
| Free(FromAPI(reservation.swapchain)); |
| } |
| |
| void Client::ReclaimDeviceReservation(const ReservedDevice& reservation) { |
| Free(FromAPI(reservation.device)); |
| } |
| |
| void Client::ReclaimInstanceReservation(const ReservedInstance& reservation) { |
| Free(FromAPI(reservation.instance)); |
| } |
| |
| EventManager& Client::GetEventManager(const ObjectHandle& instance) { |
| auto it = mEventManagers.find(instance); |
| DAWN_ASSERT(it != mEventManagers.end()); |
| return *it->second; |
| } |
| |
| void Client::Disconnect() { |
| mDisconnected = true; |
| mSerializer = ChunkedCommandSerializer(NoopCommandSerializer::GetInstance()); |
| |
| auto& deviceList = mObjects[ObjectType::Device]; |
| { |
| for (LinkNode<ObjectBase>* device = deviceList.head(); device != deviceList.end(); |
| device = device->next()) { |
| static_cast<Device*>(device->value()) |
| ->HandleDeviceLost(WGPUDeviceLostReason_Undefined, "GPU connection lost"); |
| } |
| } |
| for (auto& objectList : mObjects) { |
| for (LinkNode<ObjectBase>* object = objectList.head(); object != objectList.end(); |
| object = object->next()) { |
| object->value()->CancelCallbacksForDisconnect(); |
| } |
| } |
| |
| // Transition all event managers to ClientDropped state. |
| for (auto& [_, eventManager] : mEventManagers) { |
| eventManager->TransitionTo(EventManager::State::ClientDropped); |
| } |
| } |
| |
| bool Client::IsDisconnected() const { |
| return mDisconnected; |
| } |
| |
| void Client::Free(ObjectBase* obj, ObjectType type) { |
| mObjectStores[type].Free(obj); |
| } |
| |
| } // namespace dawn::wire::client |