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imaging/vtkWin32OpenGLImageWindow.h

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00001 /*=========================================================================
00002 
00003   Program:   Visualization Toolkit
00004   Module:    $RCSfile: vtkWin32OpenGLImageWindow.h,v $
00005   Language:  C++
00006 
00007 
00008 Copyright (c) 1993-2001 Ken Martin, Will Schroeder, Bill Lorensen 
00009 All rights reserved.
00010 
00011 Redistribution and use in source and binary forms, with or without
00012 modification, are permitted provided that the following conditions are met:
00013 
00014  * Redistributions of source code must retain the above copyright notice,
00015    this list of conditions and the following disclaimer.
00016 
00017  * Redistributions in binary form must reproduce the above copyright notice,
00018    this list of conditions and the following disclaimer in the documentation
00019    and/or other materials provided with the distribution.
00020 
00021  * Neither name of Ken Martin, Will Schroeder, or Bill Lorensen nor the names
00022    of any contributors may be used to endorse or promote products derived
00023    from this software without specific prior written permission.
00024 
00025  * Modified source versions must be plainly marked as such, and must not be
00026    misrepresented as being the original software.
00027 
00028 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS''
00029 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00030 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00031 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR
00032 ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00033 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
00034 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
00036 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00037 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00038 
00039 =========================================================================*/
00051 #ifndef __vtkWin32OpenGLImageWindow_h
00052 #define __vtkWin32OpenGLImageWindow_h
00053 
00054 #include <stdlib.h>
00055 #include "vtkImageWindow.h"
00056 #include "vtkMutexLock.h"
00057 
00058 class VTK_EXPORT vtkWin32OpenGLImageWindow : public vtkImageWindow
00059 {
00060 public:
00061   static vtkWin32OpenGLImageWindow *New();
00062   vtkTypeMacro(vtkWin32OpenGLImageWindow,vtkImageWindow);
00063   void PrintSelf(ostream& os, vtkIndent indent);
00064 
00065   // output to the viewer.
00066   vtkWin32OpenGLImageWindow *GetOutput(){return this;};
00067 
00069   virtual void MakeDefaultWindow();
00070 
00072   void SwapBuffers();
00073 
00075   void Frame();
00076 
00078   void Render();
00079 
00081   virtual void SetSize(int,int);
00082 
00084   virtual int *GetSize();
00085 
00087   virtual void SetPosition(int,int);
00088   
00090   virtual int *GetPosition();
00091 
00094   virtual void SetWindowName(char *);
00095   
00096   //BTX
00097   virtual void *GetGenericDisplayId() {return (void *)this->ContextId;};
00098   virtual void *GetGenericWindowId()  {return (void *)this->WindowId;};
00099   virtual void *GetGenericParentId()  {return (void *)this->ParentId;};
00100   virtual void *GetGenericContext()   {return (void *)this->DeviceContext;};
00101   virtual void SetDisplayId(void *) {};
00102 
00104   virtual HWND  GetWindowId();
00105   void  SetWindowId(void *foo) {this->SetWindowId((HWND)foo);};
00106 
00108   virtual void  SetWindowId(HWND);
00109   
00111   virtual void  SetParentId(HWND);
00112   void  SetParentId(void *foo) {this->SetParentId((HWND)foo);};
00113 
00114   void  SetContextId(HGLRC);  // hsr
00115   void  SetDeviceContext(HDC);   // hsr
00116 
00118   virtual void  SetNextWindowId(HWND);
00119   //ETX
00120 
00122   virtual unsigned char *GetPixelData(int x,int y,int x2,int y2,int front);
00123   virtual void SetPixelData(int x,int y,int x2,int y2,unsigned char *,
00124              int front);
00125 
00127   virtual float *GetRGBAPixelData(int x,int y,int x2,int y2,int front);
00128   virtual void SetRGBAPixelData(int x,int y,int x2,int y2,float *,int front,
00129                                 int blend=0);
00130   virtual void ReleaseRGBAPixelData(float *data);
00131 
00133   void MakeCurrent();
00134 
00137   void SetupMemoryRendering(int x, int y, HDC prn);
00138   void ResumeScreenRendering();
00139   HDC GetMemoryDC();
00140   unsigned char *GetMemoryData(){return this->MemoryData;};  
00141   
00143   virtual void OpenGLInit();
00144   virtual void SetupPalette(HDC hDC);
00145   virtual void SetupPixelFormat(HDC hDC, DWORD dwFlags, int debug, 
00146             int bpp=16, int zbpp=16);
00147   
00149   void Clean();
00150 
00151 protected:
00152   vtkWin32OpenGLImageWindow();
00153   ~vtkWin32OpenGLImageWindow();
00154   vtkWin32OpenGLImageWindow(const vtkWin32OpenGLImageWindow&) {};
00155   void operator=(const vtkWin32OpenGLImageWindow&) {};
00156 
00157   HINSTANCE ApplicationInstance;
00158   HPALETTE  Palette;
00159   HPALETTE  OldPalette;
00160   HGLRC     ContextId;
00161   HDC       DeviceContext;
00162   HWND      WindowId;
00163   HWND      ParentId;
00164   HWND      NextWindowId;
00165   int       OwnWindow;
00166   int       ScreenSize[2];
00167 
00168   // the following is used to support rendering into memory
00169   BITMAPINFO MemoryDataHeader;
00170   HBITMAP MemoryBuffer;
00171   unsigned char *MemoryData;  // the data in the DIBSection
00172   HDC MemoryHdc;
00173 
00174   int ScreenMapped;
00175   int ScreenWindowSize[2];
00176   HDC ScreenDeviceContext;
00177   int ScreenDoubleBuffer;
00178   HGLRC ScreenContextId;
00179 
00180   //BTX
00181   // message handler
00182   virtual LRESULT MessageProc(HWND hWnd, UINT message, 
00183                WPARAM wParam, LPARAM lParam);
00184 
00185   static LRESULT APIENTRY WndProc(HWND hWnd, UINT message, 
00186               WPARAM wParam, LPARAM lParam);
00187   //ETX
00188   
00189 };
00190 
00191 
00192 #endif
00193 

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