Georgios Pinitas | df31036 | 2018-11-14 13:16:56 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018 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 | #include "arm_compute/runtime/GLES_COMPUTE/GCMemoryRegion.h" |
| 25 | |
| 26 | #include "arm_compute/core/Error.h" |
| 27 | |
| 28 | namespace arm_compute |
| 29 | { |
| 30 | IGCMemoryRegion::IGCMemoryRegion(size_t size) |
| 31 | : IMemoryRegion(size), _mapping(nullptr), _ssbo_name(0) |
| 32 | { |
| 33 | } |
| 34 | |
| 35 | const GLuint &IGCMemoryRegion::gc_ssbo_name() const |
| 36 | { |
| 37 | return _ssbo_name; |
| 38 | } |
| 39 | |
| 40 | void *IGCMemoryRegion::buffer() |
| 41 | { |
| 42 | return _mapping; |
| 43 | } |
| 44 | |
| 45 | void *IGCMemoryRegion::buffer() const |
| 46 | { |
| 47 | return _mapping; |
| 48 | } |
| 49 | |
| 50 | GCBufferMemoryRegion::GCBufferMemoryRegion(size_t size) |
| 51 | : IGCMemoryRegion(size) |
| 52 | { |
| 53 | ARM_COMPUTE_GL_CHECK(glGenBuffers(1, &_ssbo_name)); |
| 54 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _ssbo_name)); |
| 55 | ARM_COMPUTE_GL_CHECK(glBufferData(GL_SHADER_STORAGE_BUFFER, static_cast<GLsizeiptr>(size), nullptr, GL_STATIC_DRAW)); |
| 56 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0)); |
| 57 | } |
| 58 | |
| 59 | GCBufferMemoryRegion::~GCBufferMemoryRegion() |
| 60 | { |
| 61 | ARM_COMPUTE_GL_CHECK(glDeleteBuffers(1, &_ssbo_name)); |
| 62 | } |
| 63 | |
| 64 | void *GCBufferMemoryRegion::ptr() |
| 65 | { |
| 66 | return nullptr; |
| 67 | } |
| 68 | |
| 69 | void *GCBufferMemoryRegion::map(bool blocking) |
| 70 | { |
| 71 | ARM_COMPUTE_ERROR_ON(_mapping != nullptr); |
| 72 | ARM_COMPUTE_UNUSED(blocking); |
| 73 | |
| 74 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _ssbo_name)); |
| 75 | void *p = ARM_COMPUTE_GL_CHECK(glMapBufferRange(GL_SHADER_STORAGE_BUFFER, 0, static_cast<GLsizeiptr>(size()), GL_MAP_READ_BIT | GL_MAP_WRITE_BIT)); |
| 76 | _mapping = reinterpret_cast<uint8_t *>(p); |
| 77 | |
| 78 | return _mapping; |
| 79 | } |
| 80 | |
| 81 | void GCBufferMemoryRegion::unmap() |
| 82 | { |
| 83 | ARM_COMPUTE_ERROR_ON(_mapping == nullptr); |
| 84 | |
| 85 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, _ssbo_name)); |
| 86 | ARM_COMPUTE_GL_CHECK(glUnmapBuffer(GL_SHADER_STORAGE_BUFFER)); |
| 87 | ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0)); |
| 88 | _mapping = nullptr; |
| 89 | } |
| 90 | |
| 91 | std::unique_ptr<IMemoryRegion> GCBufferMemoryRegion::extract_subregion(size_t offset, size_t size) |
| 92 | { |
| 93 | ARM_COMPUTE_UNUSED(offset, size); |
| 94 | return nullptr; |
| 95 | } |
| 96 | } // namespace arm_compute |