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/GCBufferAllocator.h"
25
26 #include "arm_compute/core/Error.h"
27 #include "arm_compute/core/GLES_COMPUTE/OpenGLES.h"
28 #include "arm_compute/runtime/GLES_COMPUTE/GCMemoryRegion.h"
29
30 #include <cstddef>
31
32 namespace arm_compute
33 {
allocate(size_t size,size_t alignment)34 void *GCBufferAllocator::allocate(size_t size, size_t alignment)
35 {
36 ARM_COMPUTE_UNUSED(alignment);
37
38 auto *gl_ssbo_name = new GLuint;
39 ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, *gl_ssbo_name));
40 ARM_COMPUTE_GL_CHECK(glBufferData(GL_SHADER_STORAGE_BUFFER, static_cast<GLsizeiptr>(size), nullptr, GL_STATIC_DRAW));
41 ARM_COMPUTE_GL_CHECK(glBindBuffer(GL_SHADER_STORAGE_BUFFER, 0));
42
43 return reinterpret_cast<void *>(gl_ssbo_name);
44 }
45
free(void * ptr)46 void GCBufferAllocator::free(void *ptr)
47 {
48 ARM_COMPUTE_ERROR_ON(ptr == nullptr);
49 auto *gl_ssbo_name = reinterpret_cast<GLuint *>(ptr);
50 ARM_COMPUTE_GL_CHECK(glDeleteBuffers(1, gl_ssbo_name));
51 delete gl_ssbo_name;
52 }
53
make_region(size_t size,size_t alignment)54 std::unique_ptr<IMemoryRegion> GCBufferAllocator::make_region(size_t size, size_t alignment)
55 {
56 ARM_COMPUTE_UNUSED(alignment);
57 return arm_compute::support::cpp14::make_unique<GCBufferMemoryRegion>(size);
58 }
59 } // namespace arm_compute
60