Georgios Pinitas | 7ae80a9 | 2019-10-25 18:25:17 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2019 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/GCHelpers.h" |
| 26 | |
| 27 | #include "arm_compute/core/Error.h" |
| 28 | |
| 29 | namespace arm_compute |
| 30 | { |
| 31 | std::tuple<EGLDisplay, EGLContext, EGLBoolean> create_opengl_display_and_context() |
| 32 | { |
| 33 | EGLBoolean res; |
| 34 | EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY); |
| 35 | |
| 36 | ARM_COMPUTE_ERROR_ON_MSG_VAR(display == EGL_NO_DISPLAY, "Failed to get display: 0x%x.", eglGetError()); |
| 37 | |
| 38 | res = eglInitialize(display, nullptr, nullptr); |
| 39 | |
| 40 | ARM_COMPUTE_ERROR_ON_MSG_VAR(res == EGL_FALSE, "Failed to initialize egl: 0x%x.", eglGetError()); |
| 41 | ARM_COMPUTE_UNUSED(res); |
| 42 | |
| 43 | const char *egl_extension_st = eglQueryString(display, EGL_EXTENSIONS); |
| 44 | ARM_COMPUTE_ERROR_ON_MSG((strstr(egl_extension_st, "EGL_KHR_create_context") == nullptr), "Failed to query EGL_KHR_create_context"); |
| 45 | ARM_COMPUTE_ERROR_ON_MSG((strstr(egl_extension_st, "EGL_KHR_surfaceless_context") == nullptr), "Failed to query EGL_KHR_surfaceless_context"); |
| 46 | ARM_COMPUTE_UNUSED(egl_extension_st); |
| 47 | |
| 48 | const std::array<EGLint, 3> config_attribs = |
| 49 | { |
| 50 | EGL_RENDERABLE_TYPE, EGL_OPENGL_ES3_BIT_KHR, |
| 51 | EGL_NONE |
| 52 | }; |
| 53 | EGLConfig cfg; |
| 54 | EGLint count; |
| 55 | |
| 56 | res = eglChooseConfig(display, config_attribs.data(), &cfg, 1, &count); |
| 57 | |
| 58 | ARM_COMPUTE_ERROR_ON_MSG_VAR(res == EGL_FALSE, "Failed to choose config: 0x%x.", eglGetError()); |
| 59 | ARM_COMPUTE_UNUSED(res); |
| 60 | |
| 61 | res = eglBindAPI(EGL_OPENGL_ES_API); |
| 62 | |
| 63 | ARM_COMPUTE_ERROR_ON_MSG_VAR(res == EGL_FALSE, "Failed to bind api: 0x%x.", eglGetError()); |
| 64 | |
| 65 | const std::array<EGLint, 3> attribs = |
| 66 | { |
| 67 | EGL_CONTEXT_CLIENT_VERSION, 3, |
| 68 | EGL_NONE |
| 69 | }; |
| 70 | EGLContext context = eglCreateContext(display, |
| 71 | cfg, |
| 72 | EGL_NO_CONTEXT, |
| 73 | attribs.data()); |
| 74 | |
| 75 | ARM_COMPUTE_ERROR_ON_MSG_VAR(context == EGL_NO_CONTEXT, "Failed to create context: 0x%x.", eglGetError()); |
| 76 | ARM_COMPUTE_UNUSED(res); |
| 77 | |
| 78 | res = eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, context); |
| 79 | |
| 80 | ARM_COMPUTE_ERROR_ON_MSG_VAR(res == EGL_FALSE, "Failed to make current: 0x%x.", eglGetError()); |
| 81 | ARM_COMPUTE_UNUSED(res); |
| 82 | |
| 83 | return std::make_tuple(display, context, res); |
| 84 | } |
| 85 | } // namespace arm_compute |