| /* |
| * Copyright (c) 2019 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/GCHelpers.h" |
| |
| #include "arm_compute/core/Error.h" |
| |
| namespace arm_compute |
| { |
| std::tuple<EGLDisplay, EGLContext, EGLBoolean> create_opengl_display_and_context() |
| { |
| EGLBoolean res; |
| EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY); |
| |
| ARM_COMPUTE_ERROR_ON_MSG_VAR(display == EGL_NO_DISPLAY, "Failed to get display: 0x%x.", eglGetError()); |
| |
| res = eglInitialize(display, nullptr, nullptr); |
| |
| ARM_COMPUTE_ERROR_ON_MSG_VAR(res == EGL_FALSE, "Failed to initialize egl: 0x%x.", eglGetError()); |
| ARM_COMPUTE_UNUSED(res); |
| |
| const char *egl_extension_st = eglQueryString(display, EGL_EXTENSIONS); |
| ARM_COMPUTE_ERROR_ON_MSG((strstr(egl_extension_st, "EGL_KHR_create_context") == nullptr), "Failed to query EGL_KHR_create_context"); |
| ARM_COMPUTE_ERROR_ON_MSG((strstr(egl_extension_st, "EGL_KHR_surfaceless_context") == nullptr), "Failed to query EGL_KHR_surfaceless_context"); |
| ARM_COMPUTE_UNUSED(egl_extension_st); |
| |
| const std::array<EGLint, 3> config_attribs = |
| { |
| EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR, |
| EGL_NONE |
| }; |
| EGLConfig cfg; |
| EGLint count; |
| |
| res = eglChooseConfig(display, config_attribs.data(), &cfg, 1, &count); |
| |
| ARM_COMPUTE_ERROR_ON_MSG_VAR(res == EGL_FALSE, "Failed to choose config: 0x%x.", eglGetError()); |
| ARM_COMPUTE_UNUSED(res); |
| |
| res = eglBindAPI(EGL_OPENGL_ES_API); |
| |
| ARM_COMPUTE_ERROR_ON_MSG_VAR(res == EGL_FALSE, "Failed to bind api: 0x%x.", eglGetError()); |
| |
| const std::array<EGLint, 3> attribs = |
| { |
| EGL_CONTEXT_CLIENT_VERSION, 3, |
| EGL_NONE |
| }; |
| EGLContext context = eglCreateContext(display, |
| cfg, |
| EGL_NO_CONTEXT, |
| attribs.data()); |
| |
| ARM_COMPUTE_ERROR_ON_MSG_VAR(context == EGL_NO_CONTEXT, "Failed to create context: 0x%x.", eglGetError()); |
| ARM_COMPUTE_UNUSED(res); |
| |
| res = eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, context); |
| |
| ARM_COMPUTE_ERROR_ON_MSG_VAR(res == EGL_FALSE, "Failed to make current: 0x%x.", eglGetError()); |
| ARM_COMPUTE_UNUSED(res); |
| |
| return std::make_tuple(display, context, res); |
| } |
| } // namespace arm_compute |