Panda3D

osMesaGraphicsBuffer.h

00001 // Filename: osMesaGraphicsBuffer.h
00002 // Created by:  drose (09Feb04)
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 OSMESAGRAPHICSBUFFER_H
00016 #define OSMESAGRAPHICSBUFFER_H
00017 
00018 #include "pandabase.h"
00019 
00020 #include "osMesaGraphicsPipe.h"
00021 #include "graphicsBuffer.h"
00022 
00023 ////////////////////////////////////////////////////////////////////
00024 //       Class : OsMesaGraphicsBuffer
00025 // Description : An offscreen buffer using direct calls to Mesa.  This
00026 //               is the only kind of graphics output supported by
00027 //               osmesa.h.
00028 ////////////////////////////////////////////////////////////////////
00029 class EXPCL_PANDAMESA OsMesaGraphicsBuffer : public GraphicsBuffer {
00030 public:
00031   OsMesaGraphicsBuffer(GraphicsEngine *engine, GraphicsPipe *pipe, 
00032                        const string &name,
00033                        const FrameBufferProperties &fb_prop,
00034                        const WindowProperties &win_prop,
00035                        int flags,
00036                        GraphicsStateGuardian *gsg,
00037                        GraphicsOutput *host);
00038   virtual ~OsMesaGraphicsBuffer();
00039 
00040   virtual bool begin_frame(FrameMode mode, Thread *current_thread);
00041   virtual void end_frame(FrameMode mode, Thread *current_thread);
00042 
00043 protected:
00044   virtual void close_buffer();
00045   virtual bool open_buffer();
00046 
00047 private:
00048   GLenum _type;
00049   PTA_uchar _image;
00050 
00051 public:
00052   static TypeHandle get_class_type() {
00053     return _type_handle;
00054   }
00055   static void init_type() {
00056     GraphicsBuffer::init_type();
00057     register_type(_type_handle, "OsMesaGraphicsBuffer",
00058                   GraphicsBuffer::get_class_type());
00059   }
00060   virtual TypeHandle get_type() const {
00061     return get_class_type();
00062   }
00063   virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
00064 
00065 private:
00066   static TypeHandle _type_handle;
00067 };
00068 
00069 #include "osMesaGraphicsBuffer.I"
00070 
00071 #endif
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