| /* |
| * Copyright (c) 2018 ARM Limited. |
| * |
| * SPDX-License-Identifier: MIT |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to |
| * deal in the Software without restriction, including without limitation the |
| * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| * sell copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in all |
| * copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef __ARM_COMPUTE_RUNTIME_GLES_COMPUTE_GC_MEMORY_REGION_H__ |
| #define __ARM_COMPUTE_RUNTIME_GLES_COMPUTE_GC_MEMORY_REGION_H__ |
| |
| #include "arm_compute/core/GLES_COMPUTE/OpenGLES.h" |
| #include "arm_compute/runtime/IMemoryRegion.h" |
| |
| #include <cstddef> |
| |
| namespace arm_compute |
| { |
| /** GLES memory region interface */ |
| class IGCMemoryRegion : public IMemoryRegion |
| { |
| public: |
| /** Constructor |
| * |
| * @param[in] size Region size |
| */ |
| IGCMemoryRegion(size_t size); |
| /** Default Destructor */ |
| virtual ~IGCMemoryRegion() = default; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| IGCMemoryRegion(const IGCMemoryRegion &) = delete; |
| /** Default move constructor */ |
| IGCMemoryRegion(IGCMemoryRegion &&) = default; |
| /** Prevent instances of this class from being copied (As this class contains pointers) */ |
| IGCMemoryRegion &operator=(const IGCMemoryRegion &) = delete; |
| /** Default move assignment operator */ |
| IGCMemoryRegion &operator=(IGCMemoryRegion &&) = default; |
| /** Returns the underlying CL buffer |
| * |
| * @return CL memory buffer object |
| */ |
| const GLuint &gc_ssbo_name() const; |
| /** Host/SVM pointer accessor |
| * |
| * @return Host/SVM pointer base |
| */ |
| virtual void *ptr() = 0; |
| /** Enqueue a map operation of the allocated buffer on the given queue. |
| * |
| * @param[in] blocking If true, then the mapping will be ready to use by the time |
| * this method returns, else it is the caller's responsibility |
| * to flush the queue and wait for the mapping operation to have completed before using the returned mapping pointer. |
| * |
| * @return The mapping address. |
| */ |
| virtual void *map(bool blocking) = 0; |
| /** Enqueue an unmap operation of the allocated buffer on the given queue. |
| * |
| * @note This method simply enqueue the unmap operation, it is the caller's responsibility to flush the queue and make sure the unmap is finished before |
| * the memory is accessed by the device. |
| * |
| */ |
| virtual void unmap() = 0; |
| |
| // Inherited methods overridden : |
| void *buffer() override; |
| void *buffer() const override; |
| |
| protected: |
| void *_mapping; |
| GLuint _ssbo_name; |
| }; |
| |
| /** GLES buffer memory region implementation */ |
| class GCBufferMemoryRegion final : public IGCMemoryRegion |
| { |
| public: |
| /** Constructor |
| * |
| * @param[in] size Region size |
| */ |
| GCBufferMemoryRegion(size_t size); |
| /** Destructor */ |
| ~GCBufferMemoryRegion(); |
| |
| // Inherited methods overridden : |
| void *ptr() final; |
| void *map(bool blocking) final; |
| void unmap() final; |
| std::unique_ptr<IMemoryRegion> extract_subregion(size_t offset, size_t size) final; |
| }; |
| } // namespace arm_compute |
| #endif /* __ARM_COMPUTE_RUNTIME_GLES_COMPUTE_GC_MEMORY_REGION_H__ */ |