COMPMID-631: Merge branches/gles_compute branch

Last commit:
commit b25c5f68042b0c81bf611d59a1bb8535e1c42497
Author: Xinghang Zhou <xinghang.zhou@arm.com>
Date:   Wed Oct 25 18:48:10 2017 +0800

    Synced validation's tolerances of GCSoftmax from cl side

Change-Id: Ibe72054205c1c8721845d679a31af7ed0a7c5cf6
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/93283
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>

1 files changed, 128 insertions, 0 deletions

diff --git a/arm_compute/runtime/GLES_COMPUTE/GCTensorAllocator.h b/arm_compute/runtime/GLES_COMPUTE/GCTensorAllocator.h
new file mode 100644
index 0000000000..ce52cbbbdc
--- /dev/null
+++ b/arm_compute/runtime/GLES_COMPUTE/GCTensorAllocator.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2017 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_GCTENSORALLOCATOR_H__
+#define __ARM_COMPUTE_GCTENSORALLOCATOR_H__
+
+#include "arm_compute/core/GLES_COMPUTE/OpenGLES.h"
+#include "arm_compute/runtime/ITensorAllocator.h"
+
+#include <memory>
+
+namespace arm_compute
+{
+/** Basic implementation of a GLES memory tensor allocator. */
+class GCTensorAllocator : public ITensorAllocator
+{
+public:
+    /** Default constructor. */
+    GCTensorAllocator();
+
+    /** Prevent instances of this class from being copied (As this class contains pointers). */
+    GCTensorAllocator(const GCTensorAllocator &) = delete;
+
+    /** Prevent instances of this class from being copy assigned (As this class contains pointers). */
+    GCTensorAllocator &operator=(const GCTensorAllocator &) = delete;
+
+    /** Allow instances of this class to be moved */
+    GCTensorAllocator(GCTensorAllocator &&) = default;
+
+    /** Allow instances of this class to be moved */
+    GCTensorAllocator &operator=(GCTensorAllocator &&) = default;
+
+    /** Default destructor */
+    ~GCTensorAllocator() = default;
+
+    /** Interface to be implemented by the child class to return the pointer to the mapped data. */
+    uint8_t *data();
+
+    /** Get the OpenGL ES buffer object name
+     *
+     * @return The buffer object name
+     */
+    GLuint get_gl_ssbo_name() const;
+
+    /** 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.
+     */
+    uint8_t *map(bool blocking);
+
+    /** 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.
+     *
+     */
+    void unmap();
+
+    /** Allocate size specified by TensorInfo of GLES memory.
+     *
+     * @note: The tensor must not already be allocated when calling this function.
+     *
+     */
+    void allocate() override;
+
+    /** Free allocated GLES memory.
+     *
+     * @note The tensor must have been allocated when calling this function.
+     *
+     */
+    void free() override;
+
+protected:
+    /** Call map() on the SSBO.
+     *
+     * @return A pointer to the beginning of the tensor's allocation.
+     */
+    uint8_t *lock() override;
+
+    /** Call unmap() on the SSBO. */
+    void unlock() override;
+
+private:
+    class GLBufferWrapper
+    {
+    public:
+        GLBufferWrapper()
+            : _ssbo_name(0)
+        {
+            ARM_COMPUTE_GL_CHECK(glGenBuffers(1, &_ssbo_name));
+        }
+        ~GLBufferWrapper()
+        {
+            ARM_COMPUTE_GL_CHECK(glDeleteBuffers(1, &_ssbo_name));
+        }
+        GLuint _ssbo_name;
+    };
+    std::unique_ptr<GLBufferWrapper> _gl_buffer;
+    uint8_t                         *_mapping;
+};
+}
+
+#endif /* __ARM_COMPUTE_GCTENSORALLOCATOR_H__ */