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, 94 insertions, 0 deletions

diff --git a/src/runtime/GLES_COMPUTE/GCTensorAllocator.cpp b/src/runtime/GLES_COMPUTE/GCTensorAllocator.cpp
new file mode 100644
index 0000000000..694b34f1ec
--- /dev/null
+++ b/src/runtime/GLES_COMPUTE/GCTensorAllocator.cpp
@@ -0,0 +1,94 @@
+/*
+ * 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.
+ */
+
+#include "arm_compute/runtime/GLES_COMPUTE/GCTensorAllocator.h"
+
+#include "arm_compute/core/Error.h"
+#include "arm_compute/core/TensorInfo.h"
+#include "arm_compute/runtime/GLES_COMPUTE/GCScheduler.h"
+#include "support/ToolchainSupport.h"
+
+using namespace arm_compute;
+
+GCTensorAllocator::GCTensorAllocator()
+    : _gl_buffer(), _mapping(nullptr)
+{
+}
+
+uint8_t *GCTensorAllocator::data()
+{
+    return _mapping;
+}
+
+void GCTensorAllocator::allocate()
+{
+    _gl_buffer = support::cpp14::make_unique<GLBufferWrapper>();
+    ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _gl_buffer->_ssbo_name));
+    ARM_COMPUTE_GL_CHECK(glBufferData(GL_SHADER_STORAGE_BUFFER, static_cast<GLsizeiptr>(info().total_size()), nullptr, GL_STATIC_DRAW));
+    ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0));
+    info().set_is_resizable(false);
+}
+
+void GCTensorAllocator::free()
+{
+    _gl_buffer.reset();
+    info().set_is_resizable(true);
+}
+
+uint8_t *GCTensorAllocator::lock()
+{
+    return map(true);
+}
+
+void GCTensorAllocator::unlock()
+{
+    unmap();
+}
+
+GLuint GCTensorAllocator::get_gl_ssbo_name() const
+{
+    return _gl_buffer->_ssbo_name;
+}
+
+uint8_t *GCTensorAllocator::map(bool blocking)
+{
+    ARM_COMPUTE_ERROR_ON(_mapping != nullptr);
+    ARM_COMPUTE_UNUSED(blocking);
+
+    ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _gl_buffer->_ssbo_name));
+    void *p  = ARM_COMPUTE_GL_CHECK(glMapBufferRange(GL_SHADER_STORAGE_BUFFER, 0, static_cast<GLsizeiptr>(info().total_size()), GL_MAP_READ_BIT | GL_MAP_WRITE_BIT));
+    _mapping = reinterpret_cast<uint8_t *>(p);
+
+    return _mapping;
+}
+
+void GCTensorAllocator::unmap()
+{
+    ARM_COMPUTE_ERROR_ON(_mapping == nullptr);
+
+    ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _gl_buffer->_ssbo_name));
+    ARM_COMPUTE_GL_CHECK(glUnmapBuffer(GL_SHADER_STORAGE_BUFFER));
+    ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0));
+    _mapping = nullptr;
+}
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