Panda3D
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iPhoneGraphicsStateGuardian.h
00001 // Filename: iPhoneGraphicsStateGuardian.h
00002 // Created by:  drose (08Apr09)
00003 //
00004 ////////////////////////////////////////////////////////////////////
00005 //
00006 // PANDA 3D SOFTWARE
00007 // Copyright (c) Carnegie Mellon University.  All rights reserved.
00008 //
00009 // All use of this software is subject to the terms of the revised BSD
00010 // license.  You should have received a copy of this license along
00011 // with this source code in a file named "LICENSE."
00012 //
00013 ////////////////////////////////////////////////////////////////////
00014 
00015 #ifndef IPHONEGRAPHICSSTATEGUARDIAN_H
00016 #define IPHONEGRAPHICSSTATEGUARDIAN_H
00017         
00018 #include "pandabase.h"
00019 #include "glesgsg.h"
00020 
00021 #include "iPhoneGraphicsWindow.h"
00022 
00023 class IPhoneGraphicsWindow;
00024 
00025 ////////////////////////////////////////////////////////////////////
00026 //       Class : IPhoneGraphicsStateGuardian
00027 // Description : 
00028 ////////////////////////////////////////////////////////////////////
00029 class IPhoneGraphicsStateGuardian : public GLESGraphicsStateGuardian {
00030 public:
00031   IPhoneGraphicsStateGuardian(GraphicsEngine *engine, GraphicsPipe *pipe,
00032                               IPhoneGraphicsStateGuardian *share_with);
00033   virtual ~IPhoneGraphicsStateGuardian();
00034   virtual void reset();
00035 
00036 protected:
00037   virtual void *get_extension_func(const char *prefix, const char *name);
00038   
00039 private:
00040   void describe_pixel_format(FrameBufferProperties &fb_props);
00041 
00042   // We have to save a pointer to the GSG we intend to share texture
00043   // context with, since we don't create our own context in the
00044   // constructor.
00045   PT(IPhoneGraphicsStateGuardian) _share_with;
00046 
00047 public:
00048   GLint _shared_buffer;
00049 
00050 public:
00051   static TypeHandle get_class_type() {
00052     return _type_handle;
00053   }
00054   static void init_type() {
00055     GLESGraphicsStateGuardian::init_type();
00056     register_type(_type_handle, "IPhoneGraphicsStateGuardian",
00057                   GLESGraphicsStateGuardian::get_class_type());
00058   }
00059   virtual TypeHandle get_type() const {
00060     return get_class_type();
00061   }
00062   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00063 
00064 private:
00065   static TypeHandle _type_handle;
00066 
00067   friend class IPhoneGraphicsBuffer;
00068 };
00069 
00070 
00071 #endif
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