| // Copyright 2018 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. |
| |
| #ifndef SRC_DAWN_NATIVE_DYNAMICUPLOADER_H_ |
| #define SRC_DAWN_NATIVE_DYNAMICUPLOADER_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "dawn/common/Ref.h" |
| #include "dawn/native/Error.h" |
| #include "dawn/native/Forward.h" |
| #include "dawn/native/IntegerTypes.h" |
| #include "dawn/native/RingBufferAllocator.h" |
| #include "partition_alloc/pointers/raw_ptr.h" |
| |
| // DynamicUploader is the front-end implementation used to manage multiple ring buffers for upload |
| // usage. |
| namespace dawn::native { |
| |
| class BufferBase; |
| |
| struct UploadHandle { |
| raw_ptr<uint8_t> mappedBuffer = nullptr; |
| uint64_t startOffset = 0; |
| raw_ptr<BufferBase> stagingBuffer = nullptr; |
| }; |
| |
| class DynamicUploader { |
| public: |
| explicit DynamicUploader(DeviceBase* device); |
| ~DynamicUploader() = default; |
| |
| // We add functions to Release StagingBuffers to the DynamicUploader as there's |
| // currently no place to track the allocated staging buffers such that they're freed after |
| // pending commands are finished. This should be changed when better resource allocation is |
| // implemented. |
| void ReleaseStagingBuffer(Ref<BufferBase> stagingBuffer); |
| |
| ResultOrError<UploadHandle> Allocate(uint64_t allocationSize, |
| ExecutionSerial serial, |
| uint64_t offsetAlignment); |
| void Deallocate(ExecutionSerial lastCompletedSerial); |
| |
| bool ShouldFlush(); |
| |
| private: |
| static constexpr uint64_t kRingBufferSize = 4 * 1024 * 1024; |
| uint64_t GetTotalAllocatedSize(); |
| |
| struct RingBuffer { |
| Ref<BufferBase> mStagingBuffer; |
| RingBufferAllocator mAllocator; |
| }; |
| |
| ResultOrError<UploadHandle> AllocateInternal(uint64_t allocationSize, |
| ExecutionSerial serial, |
| uint64_t offsetAlignment); |
| |
| std::vector<std::unique_ptr<RingBuffer>> mRingBuffers; |
| SerialQueue<ExecutionSerial, Ref<BufferBase>> mReleasedStagingBuffers; |
| raw_ptr<DeviceBase> mDevice; |
| }; |
| } // namespace dawn::native |
| |
| #endif // SRC_DAWN_NATIVE_DYNAMICUPLOADER_H_ |