diff options
Diffstat (limited to 'src/runtime/GLES_COMPUTE/GCHelpers.cpp')
-rw-r--r-- | src/runtime/GLES_COMPUTE/GCHelpers.cpp | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/runtime/GLES_COMPUTE/GCHelpers.cpp b/src/runtime/GLES_COMPUTE/GCHelpers.cpp new file mode 100644 index 0000000000..df2f4f5e6e --- /dev/null +++ b/src/runtime/GLES_COMPUTE/GCHelpers.cpp @@ -0,0 +1,85 @@ +/* + * 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 |