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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_GL_GL_VERSION_INFO_H_
#define UI_GL_GL_VERSION_INFO_H_
#include <set>
#include <string>
#include "base/macros.h"
#include "build/build_config.h"
#include "ui/gl/gl_export.h"
namespace gfx {
struct GL_EXPORT GLVersionInfo {
GLVersionInfo(const char* version_str, const char* renderer_str,
const char* extensions_str);
GLVersionInfo(const char* version_str, const char* renderer_str,
const std::set<std::string>& exts);
bool IsAtLeastGL(unsigned major, unsigned minor) const {
return !is_es && (major_version > major ||
(major_version == major && minor_version >= minor));
}
bool IsLowerThanGL(unsigned major, unsigned minor) const {
return !is_es && (major_version < major ||
(major_version == major && minor_version < minor));
}
bool IsAtLeastGLES(unsigned major, unsigned minor) const {
return is_es && (major_version > major ||
(major_version == major && minor_version >= minor));
}
bool BehavesLikeGLES() const {
return is_es || is_desktop_core_profile;
}
bool IsES3Capable() const {
if (IsAtLeastGLES(3, 0) || IsAtLeastGL(4, 2))
return true;
#if defined(OS_MACOSX)
// TODO(zmo): For experimentation purpose on MacOSX with core profile,
// allow 3.2 or plus for now.
if (IsAtLeastGL(3, 2))
return true;
#endif
return false;
}
static void ParseVersionString(const char* version_str,
unsigned* major_version,
unsigned* minor_version,
bool* is_es,
bool* is_es3);
bool is_es;
bool is_angle;
unsigned major_version;
unsigned minor_version;
bool is_es3;
bool is_desktop_core_profile;
private:
GLVersionInfo(const char* version_str, const char* renderer_str);
DISALLOW_COPY_AND_ASSIGN(GLVersionInfo);
};
} // namespace gfx
#endif // UI_GL_GL_VERSION_INFO_H_
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