Panda3D
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00001 // Filename: wdxGraphicsBuffer9.h 00002 // Created by: drose (08Feb04) 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 wdxGraphicsBuffer9_H 00016 #define wdxGraphicsBuffer9_H 00017 00018 #include "pandabase.h" 00019 #include "graphicsBuffer.h" 00020 #include "dxgsg9base.h" 00021 #include "dxTextureContext9.h" 00022 00023 //////////////////////////////////////////////////////////////////// 00024 // Class : wdxGraphicsBuffer9 00025 // Description : An offscreen render buffer. In OpenGL under Windows, 00026 // this simply renders into a window that is never made 00027 // visible. There's a Windows interface for rendering 00028 // into a DIB, but this puts restrictions on the kind of 00029 // pixelformat we can use, and thus makes it difficult 00030 // to support one GSG rendering into an offscreen buffer 00031 // and also into a window. 00032 //////////////////////////////////////////////////////////////////// 00033 class EXPCL_PANDADX wdxGraphicsBuffer9 : public GraphicsBuffer { 00034 public: 00035 wdxGraphicsBuffer9(GraphicsEngine *engine, GraphicsPipe *pipe, 00036 const string &name, 00037 const FrameBufferProperties &fb_prop, 00038 const WindowProperties &win_prop, 00039 int flags, 00040 GraphicsStateGuardian *gsg, 00041 GraphicsOutput *host); 00042 virtual ~wdxGraphicsBuffer9(); 00043 00044 virtual bool begin_frame(FrameMode mode, Thread *current_thread); 00045 virtual void end_frame(FrameMode mode, Thread *current_thread); 00046 00047 virtual void select_cube_map(int cube_map_index); 00048 virtual void process_events(); 00049 00050 virtual bool share_depth_buffer(GraphicsOutput *graphics_output); 00051 virtual void unshare_depth_buffer(); 00052 00053 void register_shared_depth_buffer(GraphicsOutput *graphics_output); 00054 void unregister_shared_depth_buffer(GraphicsOutput *graphics_output); 00055 00056 protected: 00057 virtual void close_buffer(); 00058 virtual bool open_buffer(); 00059 00060 private: 00061 bool save_bitplanes(); 00062 bool rebuild_bitplanes(); 00063 void restore_bitplanes(); 00064 static void process_1_event(); 00065 00066 int _cube_map_index; 00067 DXGraphicsStateGuardian9 *_dxgsg; 00068 IDirect3DSurface9 *_saved_color_buffer; 00069 IDirect3DSurface9 *_saved_depth_buffer; 00070 D3DSURFACE_DESC _saved_color_desc; 00071 D3DSURFACE_DESC _saved_depth_desc; 00072 IDirect3DSurface9 *_color_backing_store; 00073 IDirect3DSurface9 *_depth_backing_store; 00074 int _backing_sizex; 00075 int _backing_sizey; 00076 00077 wdxGraphicsBuffer9 *_shared_depth_buffer; 00078 list <wdxGraphicsBuffer9 *> _shared_depth_buffer_list; 00079 00080 wdxGraphicsBuffer9 **_this; 00081 00082 public: 00083 static TypeHandle get_class_type() { 00084 return _type_handle; 00085 } 00086 static void init_type() { 00087 GraphicsBuffer::init_type(); 00088 register_type(_type_handle, "wdxGraphicsBuffer9", 00089 GraphicsBuffer::get_class_type()); 00090 } 00091 virtual TypeHandle get_type() const { 00092 return get_class_type(); 00093 } 00094 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00095 00096 private: 00097 bool _debug; 00098 static TypeHandle _type_handle; 00099 00100 friend class DXGraphicsStateGuardian9; 00101 friend class DXTextureContext9; 00102 }; 00103 00104 #endif