| // Copyright 2015 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef COBALT_RENDERER_BACKEND_EGL_UTILS_H_ |
| #define COBALT_RENDERER_BACKEND_EGL_UTILS_H_ |
| |
| #include <EGL/egl.h> |
| #include <GLES2/gl2.h> |
| |
| #include "base/logging.h" |
| |
| // Provide an easy method of calling EGL and GL function and verifying that they |
| // did not generate any errors. CHECKs is used for EGL calls for release-build |
| // error checking. DCHECKs are used for GL calls instead of CHECKs because |
| // GL calls are expected to occur much more frequently. |
| |
| #define GL_CALL(x) \ |
| do {\ |
| x;\ |
| DCHECK_EQ(GL_NO_ERROR, glGetError());\ |
| } while (false) |
| |
| #define EGL_CALL(x) \ |
| do {\ |
| x;\ |
| CHECK_EQ(EGL_SUCCESS, eglGetError());\ |
| } while (false) |
| |
| namespace cobalt { |
| namespace renderer { |
| namespace backend { |
| |
| // Uses EGL to create a GL ES 3 context. While EGL specifies a standard way |
| // to do this, some platforms have finicky implementations and this function |
| // smooths that over. |
| EGLContext CreateGLES3Context(EGLDisplay display, EGLConfig config, |
| EGLContext share_context); |
| |
| int BytesPerPixelForGLFormat(GLenum format); |
| |
| } // namespace backend |
| } // namespace renderer |
| } // namespace cobalt |
| |
| #endif // COBALT_RENDERER_BACKEND_EGL_UTILS_H_ |