Anthony Barbier | 7068f99 | 2017-10-26 15:23:08 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2017 ARM Limited. |
| 3 | * |
| 4 | * SPDX-License-Identifier: MIT |
| 5 | * |
| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
| 7 | * of this software and associated documentation files (the "Software"), to |
| 8 | * deal in the Software without restriction, including without limitation the |
| 9 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
| 10 | * sell copies of the Software, and to permit persons to whom the Software is |
| 11 | * furnished to do so, subject to the following conditions: |
| 12 | * |
| 13 | * The above copyright notice and this permission notice shall be included in all |
| 14 | * copies or substantial portions of the Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| 22 | * SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #include "arm_compute/runtime/GLES_COMPUTE/GCTensorAllocator.h" |
| 26 | |
| 27 | #include "arm_compute/core/Error.h" |
| 28 | #include "arm_compute/core/TensorInfo.h" |
| 29 | #include "arm_compute/runtime/GLES_COMPUTE/GCScheduler.h" |
| 30 | #include "support/ToolchainSupport.h" |
| 31 | |
| 32 | using namespace arm_compute; |
| 33 | |
| 34 | GCTensorAllocator::GCTensorAllocator() |
| 35 | : _gl_buffer(), _mapping(nullptr) |
| 36 | { |
| 37 | } |
| 38 | |
| 39 | uint8_t *GCTensorAllocator::data() |
| 40 | { |
| 41 | return _mapping; |
| 42 | } |
| 43 | |
| 44 | void GCTensorAllocator::allocate() |
| 45 | { |
| 46 | _gl_buffer = support::cpp14::make_unique<GLBufferWrapper>(); |
| 47 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _gl_buffer->_ssbo_name)); |
| 48 | ARM_COMPUTE_GL_CHECK(glBufferData(GL_SHADER_STORAGE_BUFFER, static_cast<GLsizeiptr>(info().total_size()), nullptr, GL_STATIC_DRAW)); |
| 49 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0)); |
| 50 | info().set_is_resizable(false); |
| 51 | } |
| 52 | |
| 53 | void GCTensorAllocator::free() |
| 54 | { |
| 55 | _gl_buffer.reset(); |
| 56 | info().set_is_resizable(true); |
| 57 | } |
| 58 | |
| 59 | uint8_t *GCTensorAllocator::lock() |
| 60 | { |
| 61 | return map(true); |
| 62 | } |
| 63 | |
| 64 | void GCTensorAllocator::unlock() |
| 65 | { |
| 66 | unmap(); |
| 67 | } |
| 68 | |
| 69 | GLuint GCTensorAllocator::get_gl_ssbo_name() const |
| 70 | { |
| 71 | return _gl_buffer->_ssbo_name; |
| 72 | } |
| 73 | |
| 74 | uint8_t *GCTensorAllocator::map(bool blocking) |
| 75 | { |
| 76 | ARM_COMPUTE_ERROR_ON(_mapping != nullptr); |
| 77 | ARM_COMPUTE_UNUSED(blocking); |
| 78 | |
| 79 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _gl_buffer->_ssbo_name)); |
| 80 | 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)); |
| 81 | _mapping = reinterpret_cast<uint8_t *>(p); |
| 82 | |
| 83 | return _mapping; |
| 84 | } |
| 85 | |
| 86 | void GCTensorAllocator::unmap() |
| 87 | { |
| 88 | ARM_COMPUTE_ERROR_ON(_mapping == nullptr); |
| 89 | |
| 90 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _gl_buffer->_ssbo_name)); |
| 91 | ARM_COMPUTE_GL_CHECK(glUnmapBuffer(GL_SHADER_STORAGE_BUFFER)); |
| 92 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0)); |
| 93 | _mapping = nullptr; |
| 94 | } |