| /* |
| * 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. |
| */ |
| #include "arm_compute/runtime/GLES_COMPUTE/GCMemoryRegion.h" |
| |
| #include "arm_compute/core/Error.h" |
| |
| namespace arm_compute |
| { |
| IGCMemoryRegion::IGCMemoryRegion(size_t size) |
| : IMemoryRegion(size), _mapping(nullptr), _ssbo_name(0) |
| { |
| } |
| |
| const GLuint &IGCMemoryRegion::gc_ssbo_name() const |
| { |
| return _ssbo_name; |
| } |
| |
| void *IGCMemoryRegion::buffer() |
| { |
| return _mapping; |
| } |
| |
| void *IGCMemoryRegion::buffer() const |
| { |
| return _mapping; |
| } |
| |
| GCBufferMemoryRegion::GCBufferMemoryRegion(size_t size) |
| : IGCMemoryRegion(size) |
| { |
| ARM_COMPUTE_GL_CHECK(glGenBuffers(1, &_ssbo_name)); |
| ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _ssbo_name)); |
| ARM_COMPUTE_GL_CHECK(glBufferData(GL_SHADER_STORAGE_BUFFER, static_cast<GLsizeiptr>(size), nullptr, GL_STATIC_DRAW)); |
| ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0)); |
| } |
| |
| GCBufferMemoryRegion::~GCBufferMemoryRegion() |
| { |
| ARM_COMPUTE_GL_CHECK(glDeleteBuffers(1, &_ssbo_name)); |
| } |
| |
| void *GCBufferMemoryRegion::ptr() |
| { |
| return nullptr; |
| } |
| |
| void *GCBufferMemoryRegion::map(bool blocking) |
| { |
| ARM_COMPUTE_ERROR_ON(_mapping != nullptr); |
| ARM_COMPUTE_UNUSED(blocking); |
| |
| ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _ssbo_name)); |
| void *p = ARM_COMPUTE_GL_CHECK(glMapBufferRange(GL_SHADER_STORAGE_BUFFER, 0, static_cast<GLsizeiptr>(size()), GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)); |
| _mapping = reinterpret_cast<uint8_t *>(p); |
| |
| return _mapping; |
| } |
| |
| void GCBufferMemoryRegion::unmap() |
| { |
| ARM_COMPUTE_ERROR_ON(_mapping == nullptr); |
| |
| ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _ssbo_name)); |
| ARM_COMPUTE_GL_CHECK(glUnmapBuffer(GL_SHADER_STORAGE_BUFFER)); |
| ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0)); |
| _mapping = nullptr; |
| } |
| |
| std::unique_ptr<IMemoryRegion> GCBufferMemoryRegion::extract_subregion(size_t offset, size_t size) |
| { |
| ARM_COMPUTE_UNUSED(offset, size); |
| return nullptr; |
| } |
| } // namespace arm_compute |