| // |
| // Copyright 2018 The ANGLE Project Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| // |
| // util_gl.h: Includes the right GL/EGL headers for static/shared link. |
| |
| #ifndef UTIL_GL_H_ |
| #define UTIL_GL_H_ |
| |
| #ifdef UNSAFE_BUFFERS_BUILD |
| # pragma allow_unsafe_buffers |
| #endif |
| |
| #include "common/platform.h" |
| |
| #if defined(ANGLE_USE_UTIL_LOADER) |
| # include "util/egl_loader_autogen.h" |
| # include "util/gles_loader_autogen.h" |
| # if defined(ANGLE_PLATFORM_WINDOWS) && !defined(ANGLE_ENABLE_WINDOWS_UWP) |
| # include "util/windows/wgl_loader_autogen.h" |
| # endif // defined(ANGLE_PLATFORM_WINDOWS) && !defined(ANGLE_ENABLE_WINDOWS_UWP) |
| #else |
| |
| # if !defined(GL_GLES_PROTOTYPES) |
| # error Config error. Should either be using the ANGLE GL loader or header prototypes. |
| # endif // !defined(GL_GLES_PROTOTYPES) |
| |
| # include <EGL/egl.h> |
| # include <EGL/eglext.h> |
| # include "angle_gl.h" |
| #endif // defined(ANGLE_USE_UTIL_LOADER) |
| |
| #include <cstring> |
| #include <string> |
| #include <utility> |
| |
| namespace angle |
| { |
| inline bool CheckExtensionExists(const char *allExtensions, const std::string &extName) |
| { |
| const std::string paddedExtensions = std::string(" ") + allExtensions + std::string(" "); |
| return paddedExtensions.find(std::string(" ") + extName + std::string(" ")) != |
| std::string::npos; |
| } |
| |
| inline std::pair<EGLint, EGLint> GetCurrentContextVersion() |
| { |
| const char *versionString = reinterpret_cast<const char *>(glGetString(GL_VERSION)); |
| if ((versionString == nullptr) || std::strstr(versionString, "OpenGL ES") == nullptr) |
| { |
| return {0, 0}; |
| } |
| |
| return {versionString[10] - '0', versionString[12] - '0'}; |
| } |
| } // namespace angle |
| #endif // UTIL_GL_H_ |