2 * Copyright (c) 2017-2018 ARM Limited.
4 * SPDX-License-Identifier: MIT
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:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
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
25 #include "arm_compute/runtime/GLES_COMPUTE/GCScheduler.h"
27 #include "arm_compute/core/GLES_COMPUTE/GCHelpers.h"
28 #include "arm_compute/core/GLES_COMPUTE/GCKernelLibrary.h"
30 using namespace arm_compute;
32 std::once_flag GCScheduler::_initialize_symbols;
34 GCScheduler::GCScheduler()
35 : _display(EGL_NO_DISPLAY), _context(EGL_NO_CONTEXT), _target(GPUTarget::MIDGARD)
39 GCScheduler::~GCScheduler()
41 eglDestroyContext(_display, _context);
42 eglTerminate(_display);
44 _context = EGL_NO_CONTEXT;
45 _display = EGL_NO_DISPLAY;
48 void GCScheduler::default_init()
52 init(_display, _context);
55 void GCScheduler::init(EGLDisplay dpy, EGLContext ctx)
57 _target = get_target_from_device();
59 GCKernelLibrary::get().init("./cs_shaders/", dpy, ctx);
62 GCScheduler &GCScheduler::get()
64 std::call_once(_initialize_symbols, opengles31_is_available);
65 static GCScheduler scheduler;
69 void GCScheduler::dispatch(IGCKernel &kernel, bool flush)
71 kernel.run(kernel.window());
74 ARM_COMPUTE_GL_CHECK(glFlush());
78 void GCScheduler::memory_barrier()
80 ARM_COMPUTE_GL_CHECK(glMemoryBarrier(GL_SHADER_STORAGE_BARRIER_BIT));
83 void GCScheduler::setup_context()
86 _display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
88 ARM_COMPUTE_ERROR_ON_MSG(_display == EGL_NO_DISPLAY, "Failed to get display: 0x%x.", eglGetError());
90 res = eglInitialize(_display, nullptr, nullptr);
92 ARM_COMPUTE_ERROR_ON_MSG(res == EGL_FALSE, "Failed to initialize egl: 0x%x.", eglGetError());
93 ARM_COMPUTE_UNUSED(res);
95 const char *egl_extension_st = eglQueryString(_display, EGL_EXTENSIONS);
96 ARM_COMPUTE_ERROR_ON_MSG((strstr(egl_extension_st, "EGL_KHR_create_context") == nullptr), "Failed to query EGL_KHR_create_context");
97 ARM_COMPUTE_ERROR_ON_MSG((strstr(egl_extension_st, "EGL_KHR_surfaceless_context") == nullptr), "Failed to query EGL_KHR_surfaceless_context");
98 ARM_COMPUTE_UNUSED(egl_extension_st);
100 const EGLint config_attribs[] =
102 EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR,
108 res = eglChooseConfig(_display, config_attribs, &cfg, 1, &count);
110 ARM_COMPUTE_ERROR_ON_MSG(res == EGL_FALSE, "Failed to choose config: 0x%x.", eglGetError());
111 ARM_COMPUTE_UNUSED(res);
113 res = eglBindAPI(EGL_OPENGL_ES_API);
115 ARM_COMPUTE_ERROR_ON_MSG(res == EGL_FALSE, "Failed to bind api: 0x%x.", eglGetError());
117 const EGLint attribs[] =
119 EGL_CONTEXT_CLIENT_VERSION, 3,
122 _context = eglCreateContext(_display,
127 ARM_COMPUTE_ERROR_ON_MSG(_context == EGL_NO_CONTEXT, "Failed to create context: 0x%x.", eglGetError());
128 ARM_COMPUTE_UNUSED(res);
130 res = eglMakeCurrent(_display, EGL_NO_SURFACE, EGL_NO_SURFACE, _context);
132 ARM_COMPUTE_ERROR_ON_MSG(res == EGL_FALSE, "Failed to make current: 0x%x.", eglGetError());
133 ARM_COMPUTE_UNUSED(res);