COMPMID-1023: Import memory for OpenCL

Change-Id: I201bc00a1261814737e6b6878ecfe9904bae0cc1
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/128212
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>

1 files changed, 83 insertions, 0 deletions

diff --git a/arm_compute/runtime/MemoryRegion.h b/arm_compute/runtime/MemoryRegion.h
new file mode 100644
index 0000000000..bf4e1719de
--- /dev/null
+++ b/arm_compute/runtime/MemoryRegion.h
@@ -0,0 +1,83 @@
+/*
+ * 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_MEMORY_REGION_H__
+#define __ARM_COMPUTE_RUNTIME_MEMORY_REGION_H__
+
+#include "arm_compute/runtime/IMemoryRegion.h"
+
+#include "arm_compute/core/Error.h"
+
+#include <cstddef>
+
+namespace arm_compute
+{
+/** Memory region CPU implementation */
+class MemoryRegion final : public IMemoryRegion
+{
+public:
+    /** Default constructor
+     *
+     * @param[in] size Region size
+     */
+    MemoryRegion(size_t size)
+        : IMemoryRegion(size), _mem(nullptr), _ptr(nullptr)
+    {
+        if(size != 0)
+        {
+            _mem = std::shared_ptr<uint8_t>(new uint8_t[size](), [](uint8_t *ptr)
+            {
+                delete[] ptr;
+            });
+            _ptr = _mem.get();
+        }
+    }
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    MemoryRegion(const MemoryRegion &) = delete;
+    /** Default move constructor */
+    MemoryRegion(MemoryRegion &&) = default;
+    /** Prevent instances of this class from being copied (As this class contains pointers) */
+    MemoryRegion &operator=(const MemoryRegion &) = delete;
+    /** Default move assignment operator */
+    MemoryRegion &operator=(MemoryRegion &&) = default;
+
+    // Inherited methods overridden :
+    void *buffer() final
+    {
+        return _mem.get();
+    }
+    void *buffer() const final
+    {
+        return _mem.get();
+    }
+    void **handle() final
+    {
+        return reinterpret_cast<void **>(&_mem);
+    }
+
+protected:
+    std::shared_ptr<uint8_t> _mem;
+    uint8_t                 *_ptr;
+};
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_RUNTIME_MEMORY_REGION_H__ */