David Monahan | 6642b8a | 2021-11-04 16:31:46 +0000 | [diff] [blame] | 1 | // |
| 2 | // Copyright © 2021 Arm Ltd and Contributors. All rights reserved. |
| 3 | // SPDX-License-Identifier: MIT |
| 4 | // |
| 5 | #pragma once |
| 6 | #include <cstddef> |
| 7 | #include <memory> |
| 8 | #include <armnn/MemorySources.hpp> |
| 9 | #include <armnn/utility/IgnoreUnused.hpp> |
| 10 | |
| 11 | namespace armnn |
| 12 | { |
| 13 | /** Default Memory Allocator class returned from IBackendInternal::GetDefaultAllocator(MemorySource) */ |
| 14 | class ClBackendDefaultAllocator : public armnn::ICustomAllocator |
| 15 | { |
| 16 | public: |
| 17 | ClBackendDefaultAllocator() = default; |
| 18 | |
| 19 | void* allocate(size_t size, size_t alignment = 0) override |
| 20 | { |
| 21 | IgnoreUnused(alignment); |
| 22 | cl_mem buf{ clCreateBuffer(arm_compute::CLScheduler::get().context().get(), |
| 23 | CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, |
| 24 | size, |
| 25 | nullptr, |
| 26 | nullptr)}; |
| 27 | return static_cast<void *>(buf); |
| 28 | } |
| 29 | |
| 30 | void free(void* ptr) override |
| 31 | { |
| 32 | ARM_COMPUTE_ERROR_ON(ptr == nullptr); |
| 33 | clReleaseMemObject(static_cast<cl_mem>(ptr)); |
| 34 | } |
| 35 | |
| 36 | armnn::MemorySource GetMemorySourceType() override |
| 37 | { |
| 38 | return armnn::MemorySource::Gralloc; |
| 39 | } |
| 40 | |
| 41 | void* GetMemoryRegionAtOffset(void* buffer, size_t offset, size_t alignment = 0) override |
| 42 | { |
| 43 | IgnoreUnused(alignment); |
| 44 | return static_cast<char*>(buffer) + offset; |
| 45 | } |
| 46 | }; |
| 47 | } // namespace armnn |