| // Copyright 2020 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. |
| #ifndef DAWNNATIVE_METAL_COMMANDRECORDINGCONTEXT_H_ |
| #define DAWNNATIVE_METAL_COMMANDRECORDINGCONTEXT_H_ |
| |
| #include "dawn/common/NSRef.h" |
| #include "dawn/common/NonCopyable.h" |
| #include "dawn/native/Error.h" |
| |
| #import <Metal/Metal.h> |
| |
| namespace dawn::native::metal { |
| |
| // This class wraps a MTLCommandBuffer and tracks which Metal encoder is open. |
| // Only one encoder may be open at a time. |
| class CommandRecordingContext : NonMovable { |
| public: |
| CommandRecordingContext(); |
| ~CommandRecordingContext(); |
| |
| id<MTLCommandBuffer> GetCommands(); |
| void MarkUsed(); |
| bool WasUsed() const; |
| |
| MaybeError PrepareNextCommandBuffer(id<MTLCommandQueue> queue); |
| NSPRef<id<MTLCommandBuffer>> AcquireCommands(); |
| |
| id<MTLBlitCommandEncoder> EnsureBlit(); |
| void EndBlit(); |
| |
| id<MTLComputeCommandEncoder> BeginCompute(); |
| void EndCompute(); |
| |
| id<MTLRenderCommandEncoder> BeginRender(MTLRenderPassDescriptor* descriptor); |
| void EndRender(); |
| |
| private: |
| NSPRef<id<MTLCommandBuffer>> mCommands; |
| NSPRef<id<MTLBlitCommandEncoder>> mBlit; |
| NSPRef<id<MTLComputeCommandEncoder>> mCompute; |
| NSPRef<id<MTLRenderCommandEncoder>> mRender; |
| bool mInEncoder = false; |
| bool mUsed = false; |
| }; |
| |
| } // namespace dawn::native::metal |
| |
| #endif // DAWNNATIVE_METAL_COMMANDRECORDINGCONTEXT_H_ |