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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.
#include "ui/gl/gl_version_info.h"
#include "base/strings/string_util.h"
namespace gfx {
GLVersionInfo::GLVersionInfo(const char* version_str, const char* renderer_str)
: is_es(false),
is_es1(false),
is_es2(false),
is_es3(false),
#if defined(OS_ANDROID)
is_es31(false),
#endif
is_gl1(false),
is_gl2(false),
is_gl3(false),
is_gl4(false),
is_angle(false) {
if (version_str) {
std::string lstr(base::StringToLowerASCII(std::string(version_str)));
is_es = (lstr.substr(0, 9) == "opengl es");
if (is_es) {
is_es1 = (lstr.substr(9, 2) == "-c" && lstr.substr(13, 2) == "1.");
is_es2 = (lstr.substr(9, 3) == " 2.");
is_es3 = (lstr.substr(9, 3) == " 3.");
#if defined(OS_ANDROID)
if (is_es3)
is_es31 = (lstr.substr(9, 4) == " 3.1");
#endif
} else {
is_gl2 = (lstr.substr(0, 2) == "2.");
is_gl3 = (lstr.substr(0, 2) == "3.");
is_gl4 = (lstr.substr(0, 2) == "4.");
// In early GL versions, GetString output format is implementation
// dependent.
is_gl1 = !is_gl2 && !is_gl3 && !is_gl4;
}
}
if (renderer_str) {
is_angle = StartsWithASCII(renderer_str, "ANGLE", true);
}
}
} // namespace gfx
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