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//
// 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_
#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 <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) || strstr(versionString, "OpenGL ES") == nullptr)
{
return {0, 0};
}
return {versionString[10] - '0', versionString[12] - '0'};
}
} // namespace angle
#endif // UTIL_GL_H_
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