109 lines
4.0 KiB
C++
109 lines
4.0 KiB
C++
/*
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* Copyright (c) 2018-2020 Arm Limited.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ARM_COMPUTE_RUNTIME_GLES_COMPUTE_GC_MEMORY_REGION_H
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#define ARM_COMPUTE_RUNTIME_GLES_COMPUTE_GC_MEMORY_REGION_H
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#include "arm_compute/core/GLES_COMPUTE/OpenGLES.h"
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#include "arm_compute/runtime/IMemoryRegion.h"
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#include <cstddef>
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namespace arm_compute
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{
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/** GLES memory region interface */
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class IGCMemoryRegion : public IMemoryRegion
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{
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public:
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/** Constructor
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*
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* @param[in] size Region size
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*/
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IGCMemoryRegion(size_t size);
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/** Default Destructor */
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virtual ~IGCMemoryRegion() = default;
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/** Prevent instances of this class from being copied (As this class contains pointers) */
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IGCMemoryRegion(const IGCMemoryRegion &) = delete;
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/** Default move constructor */
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IGCMemoryRegion(IGCMemoryRegion &&) = default;
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/** Prevent instances of this class from being copied (As this class contains pointers) */
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IGCMemoryRegion &operator=(const IGCMemoryRegion &) = delete;
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/** Default move assignment operator */
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IGCMemoryRegion &operator=(IGCMemoryRegion &&) = default;
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/** Returns the underlying CL buffer
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*
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* @return CL memory buffer object
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*/
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const GLuint &gc_ssbo_name() const;
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/** Host/SVM pointer accessor
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*
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* @return Host/SVM pointer base
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*/
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virtual void *ptr() = 0;
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/** Enqueue a map operation of the allocated buffer on the given queue.
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*
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* @param[in] blocking If true, then the mapping will be ready to use by the time
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* this method returns, else it is the caller's responsibility
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* to flush the queue and wait for the mapping operation to have completed before using the returned mapping pointer.
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*
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* @return The mapping address.
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*/
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virtual void *map(bool blocking) = 0;
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/** Enqueue an unmap operation of the allocated buffer on the given queue.
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*
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* @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
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* the memory is accessed by the device.
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*
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*/
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virtual void unmap() = 0;
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// Inherited methods overridden :
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void *buffer() override;
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const void *buffer() const override;
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protected:
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void *_mapping;
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GLuint _ssbo_name;
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};
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/** GLES buffer memory region implementation */
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class GCBufferMemoryRegion final : public IGCMemoryRegion
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{
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public:
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/** Constructor
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*
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* @param[in] size Region size
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*/
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GCBufferMemoryRegion(size_t size);
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/** Destructor */
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~GCBufferMemoryRegion();
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// Inherited methods overridden :
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void *ptr() final;
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void *map(bool blocking) final;
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void unmap() final;
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std::unique_ptr<IMemoryRegion> extract_subregion(size_t offset, size_t size) final;
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};
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} // namespace arm_compute
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#endif /* ARM_COMPUTE_RUNTIME_GLES_COMPUTE_GC_MEMORY_REGION_H */
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