diff options
Diffstat (limited to 'src/runtime/GLES_COMPUTE/GCTensorAllocator.cpp')
-rw-r--r-- | src/runtime/GLES_COMPUTE/GCTensorAllocator.cpp | 94 |
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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