ui/gl/gl_version_info.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_GL_GL_VERSION_INFO_H_
   6 #define UI_GL_GL_VERSION_INFO_H_
   7
   8 #include <set>
   9 #include <string>
  10 #include "base/basictypes.h"
  11 #include "ui/gl/gl_export.h"
  12
  13 namespace gfx {
  14
  15 struct GL_EXPORT GLVersionInfo {
  16   GLVersionInfo(const char* version_str, const char* renderer_str,
  17                 const char* extensions_str);
  18
  19   GLVersionInfo(const char* version_str, const char* renderer_str,
  20                 const std::set<std::string>& exts);
  21
  22   bool IsAtLeastGL(unsigned major, unsigned minor) const {
  23     return !is_es && (major_version > major ||
  24                       (major_version == major && minor_version >= minor));
  25   }
  26
  27   bool IsAtLeastGLES(unsigned major, unsigned minor) const {
  28     return is_es && (major_version > major ||
  29                      (major_version == major && minor_version >= minor));
  30   }
  31
  32   bool BehavesLikeGLES() const {
  33     return is_es || is_desktop_core_profile;
  34   }
  35
  36   static void ParseVersionString(const char* version_str,
  37                                  unsigned* major_version,
  38                                  unsigned* minor_version,
  39                                  bool* is_es,
  40                                  bool* is_es3);
  41
  42   bool is_es;
  43   bool is_angle;
  44   unsigned major_version;
  45   unsigned minor_version;
  46   bool is_es3;
  47   bool is_desktop_core_profile;
  48
  49  private:
  50   GLVersionInfo(const char* version_str, const char* renderer_str);
  51
  52   DISALLOW_COPY_AND_ASSIGN(GLVersionInfo);
  53 };
  54
  55 }  // namespace gfx
  56
  57 #endif // UI_GL_GL_VERSION_INFO_H_