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/*
* Copyright (c) 2016-2019 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_CLARRAY_H
#define ARM_COMPUTE_CLARRAY_H
#include "arm_compute/core/CL/ICLArray.h"
#include "arm_compute/core/CL/OpenCL.h"
#include "arm_compute/core/Error.h"
#include "arm_compute/core/Types.h"
#include "arm_compute/runtime/CL/CLScheduler.h"
namespace arm_compute
{
/** CLArray implementation */
template <class T>
class CLArray : public ICLArray<T>
{
public:
/** Default constructor: empty array */
CLArray()
: ICLArray<T>(0), _buffer()
{
}
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLArray(const CLArray &) = delete;
/** Prevent instances of this class from being copied (As this class contains pointers) */
CLArray &operator=(const CLArray &) = delete;
/** Allow instances of this class to be move constructed */
CLArray(CLArray &&) = default;
/** Allow instances of this class to be moved */
CLArray &operator=(CLArray &&) = default;
/** Constructor: initializes an array which can contain up to max_num_points values
*
* @param[in] max_num_values Maximum number of values the array will be able to stored
*/
CLArray(size_t max_num_values)
: ICLArray<T>(max_num_values), _buffer(CLScheduler::get().context(), CL_MEM_ALLOC_HOST_PTR | CL_MEM_READ_WRITE, max_num_values * sizeof(T))
{
}
/** Enqueue a map operation of the allocated buffer.
*
* @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.
*/
void map(bool blocking = true)
{
ICLArray<T>::map(CLScheduler::get().queue(), blocking);
}
using ICLArray<T>::map;
/** Enqueue an unmap operation of the allocated and mapped buffer.
*
* @note This method simply enqueues 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.
*/
void unmap()
{
ICLArray<T>::unmap(CLScheduler::get().queue());
}
using ICLArray<T>::unmap;
// Inherited methods overridden:
const cl::Buffer &cl_buffer() const override
{
return _buffer;
}
protected:
// Inherited methods overridden:
uint8_t *do_map(cl::CommandQueue &q, bool blocking) override
{
ARM_COMPUTE_ERROR_ON(nullptr == _buffer.get());
return static_cast<uint8_t *>(q.enqueueMapBuffer(_buffer, blocking ? CL_TRUE : CL_FALSE, CL_MAP_READ | CL_MAP_WRITE, 0, this->max_num_values() * sizeof(T)));
}
void do_unmap(cl::CommandQueue &q, uint8_t *mapping) override
{
ARM_COMPUTE_ERROR_ON(nullptr == _buffer.get());
q.enqueueUnmapMemObject(_buffer, mapping);
}
private:
cl::Buffer _buffer;
};
/** OpenCL Array of Key Points. */
using CLKeyPointArray = CLArray<KeyPoint>;
/** OpenCL Array of 2D Coordinates. */
using CLCoordinates2DArray = CLArray<Coordinates2D>;
/** OpenCL Array of Detection Windows. */
using CLDetectionWindowArray = CLArray<DetectionWindow>;
/** OpenCL Array of 2D Sizes. */
using CLSize2DArray = CLArray<Size2D>;
/** OpenCL Array of uint8s. */
using CLUInt8Array = CLArray<cl_uchar>;
/** OpenCL Array of uint16s. */
using CLUInt16Array = CLArray<cl_ushort>;
/** OpenCL Array of uint32s. */
using CLUInt32Array = CLArray<cl_uint>;
/** OpenCL Array of int16s. */
using CLInt16Array = CLArray<cl_short>;
/** OpenCL Array of int32s. */
using CLInt32Array = CLArray<cl_int>;
/** OpenCL Array of floats. */
using CLFloatArray = CLArray<cl_float>;
}
#endif /* ARM_COMPUTE_CLARRAY_H */
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