Panda3D
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00001 // Filename: wdxGraphicsBuffer8.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 wdxGraphicsBuffer8_H 00016 #define wdxGraphicsBuffer8_H 00017 00018 #include "pandabase.h" 00019 #include "graphicsBuffer.h" 00020 #include "dxgsg8base.h" 00021 00022 00023 //////////////////////////////////////////////////////////////////// 00024 // Class : wdxGraphicsBuffer8 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 wdxGraphicsBuffer8 : public GraphicsBuffer { 00034 public: 00035 wdxGraphicsBuffer8(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 ~wdxGraphicsBuffer8(); 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 00049 virtual void process_events(); 00050 00051 protected: 00052 virtual void close_buffer(); 00053 virtual bool open_buffer(); 00054 00055 private: 00056 bool save_bitplanes(); 00057 bool rebuild_bitplanes(); 00058 void restore_bitplanes(); 00059 static void process_1_event(); 00060 00061 int _cube_map_index; 00062 DXGraphicsStateGuardian8 *_dxgsg; 00063 IDirect3DSurface8 *_saved_color_buffer; 00064 IDirect3DSurface8 *_saved_depth_buffer; 00065 D3DSURFACE_DESC _saved_color_desc; 00066 D3DSURFACE_DESC _saved_depth_desc; 00067 IDirect3DSurface8 *_color_backing_store; 00068 IDirect3DSurface8 *_depth_backing_store; 00069 int _backing_sizex; 00070 int _backing_sizey; 00071 00072 wdxGraphicsBuffer8 **_this; 00073 00074 public: 00075 static TypeHandle get_class_type() { 00076 return _type_handle; 00077 } 00078 static void init_type() { 00079 GraphicsBuffer::init_type(); 00080 register_type(_type_handle, "wdxGraphicsBuffer8", 00081 GraphicsBuffer::get_class_type()); 00082 } 00083 virtual TypeHandle get_type() const { 00084 return get_class_type(); 00085 } 00086 virtual TypeHandle force_init_type() {init_type(); return get_class_type();} 00087 00088 private: 00089 static TypeHandle _type_handle; 00090 00091 friend class DXGraphicsStateGuardian8; 00092 friend class DXTextureContext8; 00093 }; 00094 00095 #endif