| // Copyright 2017 The Dawn Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <memory> |
| |
| #include "dawn/utils/BackendBinding.h" |
| |
| #include "dawn/common/Assert.h" |
| #include "dawn/native/NullBackend.h" |
| |
| namespace utils { |
| |
| class NullBinding : public BackendBinding { |
| public: |
| NullBinding(GLFWwindow* window, WGPUDevice device) : BackendBinding(window, device) {} |
| |
| uint64_t GetSwapChainImplementation() override { |
| if (mSwapchainImpl.userData == nullptr) { |
| mSwapchainImpl = dawn::native::null::CreateNativeSwapChainImpl(); |
| } |
| return reinterpret_cast<uint64_t>(&mSwapchainImpl); |
| } |
| WGPUTextureFormat GetPreferredSwapChainTextureFormat() override { |
| return WGPUTextureFormat_RGBA8Unorm; |
| } |
| |
| private: |
| DawnSwapChainImplementation mSwapchainImpl = {}; |
| }; |
| |
| BackendBinding* CreateNullBinding(GLFWwindow* window, WGPUDevice device) { |
| return new NullBinding(window, device); |
| } |
| |
| } // namespace utils |