Removed initial startup dependency on the OpenGL DLLs so only the
glcanvasc.pyd depends on them, not wxNN_N.dll git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9588 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
		
							
								
								
									
										720
									
								
								wxPython/contrib/glcanvas/msw/myglcanvas.cpp
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										720
									
								
								wxPython/contrib/glcanvas/msw/myglcanvas.cpp
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,720 @@
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		||||
/////////////////////////////////////////////////////////////////////////////
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		||||
// Name:        glcanvas.cpp
 | 
			
		||||
// Purpose:     wxGLCanvas, for using OpenGL with wxWindows under MS Windows
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		||||
// Author:      Julian Smart
 | 
			
		||||
// Modified by:
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		||||
// Created:     04/01/98
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		||||
// RCS-ID:      $Id$
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		||||
// Copyright:   (c) Julian Smart
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		||||
// Licence:   	wxWindows licence
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		||||
/////////////////////////////////////////////////////////////////////////////
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		||||
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		||||
#ifdef __GNUG__
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		||||
#pragma implementation "glcanvas.h"
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#endif
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		||||
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		||||
#include "wx/wxprec.h"
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#if defined(__BORLANDC__)
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#pragma hdrstop
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		||||
#endif
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		||||
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		||||
#include <wx/setup.h>
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#define wxUSE_GLCANVAS 1
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		||||
#if wxUSE_GLCANVAS
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#ifndef WX_PRECOMP
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#include <wx/frame.h>
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		||||
#endif
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		||||
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		||||
#include <wx/msw/private.h>
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		||||
#include <wx/settings.h>
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		||||
#include <wx/log.h>
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		||||
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		||||
#include "myglcanvas.h"
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		||||
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		||||
wxChar wxGLCanvasClassName[]        = wxT("wxGLCanvasClass");
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		||||
 | 
			
		||||
LRESULT WXDLLEXPORT APIENTRY _EXPORT wxWndProc(HWND hWnd, UINT message,
 | 
			
		||||
                                   WPARAM wParam, LPARAM lParam);
 | 
			
		||||
 | 
			
		||||
/*
 | 
			
		||||
 * GLContext implementation
 | 
			
		||||
 */
 | 
			
		||||
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		||||
wxGLContext::wxGLContext(bool isRGB, wxGLCanvas *win, const wxPalette& palette)
 | 
			
		||||
{
 | 
			
		||||
  m_window = win;
 | 
			
		||||
 | 
			
		||||
  m_hDC = win->GetHDC();
 | 
			
		||||
 | 
			
		||||
  m_glContext = wglCreateContext((HDC) m_hDC);
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		||||
  wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") );
 | 
			
		||||
 | 
			
		||||
  wglMakeCurrent((HDC) m_hDC, m_glContext);
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		||||
}
 | 
			
		||||
 | 
			
		||||
wxGLContext::wxGLContext(
 | 
			
		||||
               bool isRGB, wxGLCanvas *win,
 | 
			
		||||
               const wxPalette& palette,
 | 
			
		||||
               const wxGLContext *other  /* for sharing display lists */
 | 
			
		||||
             )
 | 
			
		||||
{
 | 
			
		||||
  m_window = win;
 | 
			
		||||
 | 
			
		||||
  m_hDC = win->GetHDC();
 | 
			
		||||
 | 
			
		||||
  m_glContext = wglCreateContext((HDC) m_hDC);
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		||||
  wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") );
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		||||
 | 
			
		||||
  if( other != 0 )
 | 
			
		||||
    wglShareLists( other->m_glContext, m_glContext );
 | 
			
		||||
 | 
			
		||||
  wglMakeCurrent((HDC) m_hDC, m_glContext);
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		||||
}
 | 
			
		||||
 | 
			
		||||
wxGLContext::~wxGLContext()
 | 
			
		||||
{
 | 
			
		||||
  if (m_glContext)
 | 
			
		||||
  {
 | 
			
		||||
    wglMakeCurrent(NULL, NULL);
 | 
			
		||||
    wglDeleteContext(m_glContext);
 | 
			
		||||
  }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void wxGLContext::SwapBuffers()
 | 
			
		||||
{
 | 
			
		||||
  if (m_glContext)
 | 
			
		||||
  {
 | 
			
		||||
    wglMakeCurrent((HDC) m_hDC, m_glContext);
 | 
			
		||||
    ::SwapBuffers((HDC) m_hDC);    //blits the backbuffer into DC
 | 
			
		||||
  }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void wxGLContext::SetCurrent()
 | 
			
		||||
{
 | 
			
		||||
  if (m_glContext)
 | 
			
		||||
  {
 | 
			
		||||
    wglMakeCurrent((HDC) m_hDC, m_glContext);
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  /*
 | 
			
		||||
  setupPixelFormat(hDC);
 | 
			
		||||
  setupPalette(hDC);
 | 
			
		||||
  */
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void wxGLContext::SetColour(const char *colour)
 | 
			
		||||
{
 | 
			
		||||
  float r = 0.0;
 | 
			
		||||
  float g = 0.0;
 | 
			
		||||
  float b = 0.0;
 | 
			
		||||
  wxColour *col = wxTheColourDatabase->FindColour(colour);
 | 
			
		||||
  if (col)
 | 
			
		||||
  {
 | 
			
		||||
    r = (float)(col->Red()/256.0);
 | 
			
		||||
    g = (float)(col->Green()/256.0);
 | 
			
		||||
    b = (float)(col->Blue()/256.0);
 | 
			
		||||
    glColor3f( r, g, b);
 | 
			
		||||
  }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
/*
 | 
			
		||||
 * wxGLCanvas implementation
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow)
 | 
			
		||||
 | 
			
		||||
BEGIN_EVENT_TABLE(wxGLCanvas, wxScrolledWindow)
 | 
			
		||||
    EVT_SIZE(wxGLCanvas::OnSize)
 | 
			
		||||
    EVT_PALETTE_CHANGED(wxGLCanvas::OnPaletteChanged)
 | 
			
		||||
    EVT_QUERY_NEW_PALETTE(wxGLCanvas::OnQueryNewPalette)
 | 
			
		||||
END_EVENT_TABLE()
 | 
			
		||||
 | 
			
		||||
wxGLCanvas::wxGLCanvas(wxWindow *parent, wxWindowID id,
 | 
			
		||||
    const wxPoint& pos, const wxSize& size, long style, const wxString& name,
 | 
			
		||||
    int *attribList, const wxPalette& palette) : wxScrolledWindow()
 | 
			
		||||
{
 | 
			
		||||
  m_glContext = (wxGLContext*) NULL;
 | 
			
		||||
 | 
			
		||||
  bool ret = Create(parent, id, pos, size, style, name);
 | 
			
		||||
 | 
			
		||||
  if ( ret )
 | 
			
		||||
  {
 | 
			
		||||
    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 | 
			
		||||
    SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
 | 
			
		||||
 | 
			
		||||
  SetupPixelFormat(attribList);
 | 
			
		||||
  SetupPalette(palette);
 | 
			
		||||
 | 
			
		||||
  m_glContext = new wxGLContext(TRUE, this, palette);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
wxGLCanvas::wxGLCanvas( wxWindow *parent,
 | 
			
		||||
              const wxGLContext *shared, wxWindowID id,
 | 
			
		||||
              const wxPoint& pos, const wxSize& size, long style, const wxString& name,
 | 
			
		||||
              int *attribList, const wxPalette& palette )
 | 
			
		||||
  : wxScrolledWindow()
 | 
			
		||||
{
 | 
			
		||||
  m_glContext = (wxGLContext*) NULL;
 | 
			
		||||
 | 
			
		||||
  bool ret = Create(parent, id, pos, size, style, name);
 | 
			
		||||
 | 
			
		||||
  if ( ret )
 | 
			
		||||
  {
 | 
			
		||||
    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 | 
			
		||||
    SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
 | 
			
		||||
 | 
			
		||||
  SetupPixelFormat(attribList);
 | 
			
		||||
  SetupPalette(palette);
 | 
			
		||||
 | 
			
		||||
  m_glContext = new wxGLContext(TRUE, this, palette, shared );
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// Not very useful for wxMSW, but this is to be wxGTK compliant
 | 
			
		||||
 | 
			
		||||
wxGLCanvas::wxGLCanvas( wxWindow *parent, const wxGLCanvas *shared, wxWindowID id,
 | 
			
		||||
                        const wxPoint& pos, const wxSize& size, long style, const wxString& name,
 | 
			
		||||
                        int *attribList, const wxPalette& palette ):
 | 
			
		||||
  wxScrolledWindow()
 | 
			
		||||
{
 | 
			
		||||
  m_glContext = (wxGLContext*) NULL;
 | 
			
		||||
 | 
			
		||||
  bool ret = Create(parent, id, pos, size, style, name);
 | 
			
		||||
 | 
			
		||||
  if ( ret )
 | 
			
		||||
  {
 | 
			
		||||
    SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 | 
			
		||||
    SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  m_hDC = (WXHDC) ::GetDC((HWND) GetHWND());
 | 
			
		||||
 | 
			
		||||
  SetupPixelFormat(attribList);
 | 
			
		||||
  SetupPalette(palette);
 | 
			
		||||
 | 
			
		||||
  wxGLContext *sharedContext=0;
 | 
			
		||||
  if (shared) sharedContext=shared->GetContext();
 | 
			
		||||
  m_glContext = new wxGLContext(TRUE, this, palette, sharedContext );
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
wxGLCanvas::~wxGLCanvas()
 | 
			
		||||
{
 | 
			
		||||
  if (m_glContext)
 | 
			
		||||
    delete m_glContext;
 | 
			
		||||
 | 
			
		||||
  ::ReleaseDC((HWND) GetHWND(), (HDC) m_hDC);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// Replaces wxWindow::Create functionality, since we need to use a different window class
 | 
			
		||||
bool wxGLCanvas::Create(wxWindow *parent, wxWindowID id,
 | 
			
		||||
              const wxPoint& pos, const wxSize& size, long style, const wxString& name)
 | 
			
		||||
{
 | 
			
		||||
  /*
 | 
			
		||||
  Suggestion from Kelly Brock <kbrock@8cs.com> (not yet implemented):
 | 
			
		||||
 | 
			
		||||
  OpenGL corruption fix is simple assuming it doesn't screw anything else
 | 
			
		||||
  up.  Add the following line to the top of the create function:
 | 
			
		||||
 | 
			
		||||
       wxSize parentSize = GetClientSize();
 | 
			
		||||
 | 
			
		||||
  All locations within the function that use 'size' are changed to
 | 
			
		||||
  'parentSize'.
 | 
			
		||||
  The above corrects the initial display corruption with the GeForce and
 | 
			
		||||
  TNT2, not sure about other NVidia cards yet.
 | 
			
		||||
  */
 | 
			
		||||
 | 
			
		||||
  static bool registeredGLCanvasClass = FALSE;
 | 
			
		||||
 | 
			
		||||
  // We have to register a special window class because we need
 | 
			
		||||
  // the CS_OWNDC style for GLCanvas.
 | 
			
		||||
 | 
			
		||||
  /*
 | 
			
		||||
  From Angel Popov <jumpo@bitex.com>
 | 
			
		||||
 | 
			
		||||
  Here are two snips from a dicussion in the OpenGL Gamedev list that explains
 | 
			
		||||
  how this problem can be fixed:
 | 
			
		||||
 | 
			
		||||
  "There are 5 common DCs available in Win95. These are aquired when you call
 | 
			
		||||
  GetDC or GetDCEx from a window that does _not_ have the OWNDC flag.
 | 
			
		||||
  OWNDC flagged windows do not get their DC from the common DC pool, the issue
 | 
			
		||||
  is they require 800 bytes each from the limited 64Kb local heap for GDI."
 | 
			
		||||
 | 
			
		||||
  "The deal is, if you hold onto one of the 5 shared DC's too long (as GL apps
 | 
			
		||||
  do), Win95 will actually "steal" it from you.  MakeCurrent fails,
 | 
			
		||||
  apparently, because Windows re-assigns the HDC to a different window.  The
 | 
			
		||||
  only way to prevent this, the only reliable means, is to set CS_OWNDC."
 | 
			
		||||
  */
 | 
			
		||||
 | 
			
		||||
  if (!registeredGLCanvasClass)
 | 
			
		||||
  {
 | 
			
		||||
    WNDCLASS wndclass;
 | 
			
		||||
 | 
			
		||||
    static const long styleNormal = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_OWNDC;
 | 
			
		||||
 | 
			
		||||
    // the fields which are common to all classes
 | 
			
		||||
    wndclass.lpfnWndProc   = (WNDPROC)wxWndProc;
 | 
			
		||||
    wndclass.cbClsExtra    = 0;
 | 
			
		||||
    wndclass.cbWndExtra    = sizeof( DWORD ); // VZ: what is this DWORD used for?
 | 
			
		||||
    wndclass.hInstance     = wxhInstance;
 | 
			
		||||
    wndclass.hIcon         = (HICON) NULL;
 | 
			
		||||
    wndclass.hCursor       = ::LoadCursor((HINSTANCE)NULL, IDC_ARROW);
 | 
			
		||||
    wndclass.lpszMenuName  = NULL;
 | 
			
		||||
 | 
			
		||||
    // Register the GLCanvas class name
 | 
			
		||||
    wndclass.hbrBackground = (HBRUSH)NULL;
 | 
			
		||||
    wndclass.lpszClassName = wxGLCanvasClassName;
 | 
			
		||||
    wndclass.style         = styleNormal;
 | 
			
		||||
 | 
			
		||||
    if ( !RegisterClass(&wndclass) )
 | 
			
		||||
    {
 | 
			
		||||
      wxLogLastError(wxT("RegisterClass(wxGLCanvasClass)"));
 | 
			
		||||
      return FALSE;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    registeredGLCanvasClass = TRUE;
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  wxCHECK_MSG( parent, FALSE, wxT("can't create wxWindow without parent") );
 | 
			
		||||
 | 
			
		||||
  if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
 | 
			
		||||
    return FALSE;
 | 
			
		||||
 | 
			
		||||
  parent->AddChild(this);
 | 
			
		||||
 | 
			
		||||
  DWORD msflags = 0;
 | 
			
		||||
  if ( style & wxBORDER )
 | 
			
		||||
    msflags |= WS_BORDER;
 | 
			
		||||
  if ( style & wxTHICK_FRAME )
 | 
			
		||||
    msflags |= WS_THICKFRAME;
 | 
			
		||||
 | 
			
		||||
  /*
 | 
			
		||||
  A general rule with OpenGL and Win32 is that any window that will have a
 | 
			
		||||
  HGLRC built for it must have two flags:  WS_CLIPCHILDREN & WS_CLIPSIBLINGS.
 | 
			
		||||
  You can find references about this within the knowledge base and most OpenGL
 | 
			
		||||
  books that contain the wgl function descriptions.
 | 
			
		||||
  */
 | 
			
		||||
 | 
			
		||||
  msflags |= WS_CHILD | WS_VISIBLE | WS_CLIPSIBLINGS;
 | 
			
		||||
  //  if ( style & wxCLIP_CHILDREN )
 | 
			
		||||
  //    msflags |= WS_CLIPCHILDREN;
 | 
			
		||||
  msflags |= WS_CLIPCHILDREN;
 | 
			
		||||
 | 
			
		||||
  bool want3D;
 | 
			
		||||
  WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
 | 
			
		||||
 | 
			
		||||
  // Even with extended styles, need to combine with WS_BORDER
 | 
			
		||||
  // for them to look right.
 | 
			
		||||
  if ( want3D || (m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER ) ||
 | 
			
		||||
       (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER))
 | 
			
		||||
  {
 | 
			
		||||
    msflags |= WS_BORDER;
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  // calculate the value to return from WM_GETDLGCODE handler
 | 
			
		||||
  if ( GetWindowStyleFlag() & wxWANTS_CHARS )
 | 
			
		||||
  {
 | 
			
		||||
    // want everything: i.e. all keys and WM_CHAR message
 | 
			
		||||
    m_lDlgCode = DLGC_WANTARROWS | DLGC_WANTCHARS |
 | 
			
		||||
                 DLGC_WANTTAB | DLGC_WANTMESSAGE;
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  MSWCreate(m_windowId, parent, wxGLCanvasClassName, this, NULL,
 | 
			
		||||
            pos.x, pos.y,
 | 
			
		||||
            WidthDefault(size.x), HeightDefault(size.y),
 | 
			
		||||
            msflags, NULL, exStyle);
 | 
			
		||||
 | 
			
		||||
  return TRUE;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void wxGLCanvas::SetupPixelFormat(int *attribList) // (HDC hDC)
 | 
			
		||||
{
 | 
			
		||||
  int pixelFormat;
 | 
			
		||||
  PIXELFORMATDESCRIPTOR pfd = {
 | 
			
		||||
		sizeof(PIXELFORMATDESCRIPTOR),	/* size */
 | 
			
		||||
		1,				/* version */
 | 
			
		||||
		PFD_SUPPORT_OPENGL |
 | 
			
		||||
		PFD_DRAW_TO_WINDOW |
 | 
			
		||||
		PFD_DOUBLEBUFFER,		/* support double-buffering */
 | 
			
		||||
		PFD_TYPE_RGBA,			/* color type */
 | 
			
		||||
		16,				/* prefered color depth */
 | 
			
		||||
		0, 0, 0, 0, 0, 0,		/* color bits (ignored) */
 | 
			
		||||
		0,				/* no alpha buffer */
 | 
			
		||||
		0,				/* alpha bits (ignored) */
 | 
			
		||||
		0,				/* no accumulation buffer */
 | 
			
		||||
		0, 0, 0, 0,			/* accum bits (ignored) */
 | 
			
		||||
		16,				/* depth buffer */
 | 
			
		||||
		0,				/* no stencil buffer */
 | 
			
		||||
		0,				/* no auxiliary buffers */
 | 
			
		||||
		PFD_MAIN_PLANE,			/* main layer */
 | 
			
		||||
		0,				/* reserved */
 | 
			
		||||
		0, 0, 0,			/* no layer, visible, damage masks */
 | 
			
		||||
	};
 | 
			
		||||
 | 
			
		||||
  if (attribList) {
 | 
			
		||||
    pfd.dwFlags &= ~PFD_DOUBLEBUFFER;
 | 
			
		||||
    pfd.iPixelType = PFD_TYPE_COLORINDEX;
 | 
			
		||||
    pfd.cColorBits = 0;
 | 
			
		||||
    int arg=0;
 | 
			
		||||
 | 
			
		||||
    while( (attribList[arg]!=0) )
 | 
			
		||||
    {
 | 
			
		||||
      switch( attribList[arg++] )
 | 
			
		||||
      {
 | 
			
		||||
        case WX_GL_RGBA:
 | 
			
		||||
          pfd.iPixelType = PFD_TYPE_RGBA;
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_BUFFER_SIZE:
 | 
			
		||||
          pfd.cColorBits = attribList[arg++];
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_LEVEL:
 | 
			
		||||
          // this member looks like it may be obsolete
 | 
			
		||||
          if (attribList[arg] > 0) {
 | 
			
		||||
            pfd.iLayerType = PFD_OVERLAY_PLANE;
 | 
			
		||||
          } else if (attribList[arg] < 0) {
 | 
			
		||||
            pfd.iLayerType = PFD_UNDERLAY_PLANE;
 | 
			
		||||
          } else {
 | 
			
		||||
            pfd.iLayerType = PFD_MAIN_PLANE;
 | 
			
		||||
          }
 | 
			
		||||
          arg++;
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_DOUBLEBUFFER:
 | 
			
		||||
          pfd.dwFlags |= PFD_DOUBLEBUFFER;
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_STEREO:
 | 
			
		||||
          pfd.dwFlags |= PFD_STEREO;
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_AUX_BUFFERS:
 | 
			
		||||
          pfd.cAuxBuffers = attribList[arg++];
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_MIN_RED:
 | 
			
		||||
          pfd.cColorBits += (pfd.cRedBits = attribList[arg++]);
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_MIN_GREEN:
 | 
			
		||||
          pfd.cColorBits += (pfd.cGreenBits = attribList[arg++]);
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_MIN_BLUE:
 | 
			
		||||
          pfd.cColorBits += (pfd.cBlueBits = attribList[arg++]);
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_MIN_ALPHA:
 | 
			
		||||
          // doesn't count in cColorBits
 | 
			
		||||
          pfd.cAlphaBits = attribList[arg++];
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_DEPTH_SIZE:
 | 
			
		||||
          pfd.cDepthBits = attribList[arg++];
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_STENCIL_SIZE:
 | 
			
		||||
          pfd.cStencilBits = attribList[arg++];
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_MIN_ACCUM_RED:
 | 
			
		||||
          pfd.cAccumBits += (pfd.cAccumRedBits = attribList[arg++]);
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_MIN_ACCUM_GREEN:
 | 
			
		||||
          pfd.cAccumBits += (pfd.cAccumGreenBits = attribList[arg++]);
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_MIN_ACCUM_BLUE:
 | 
			
		||||
          pfd.cAccumBits += (pfd.cAccumBlueBits = attribList[arg++]);
 | 
			
		||||
          break;
 | 
			
		||||
        case WX_GL_MIN_ACCUM_ALPHA:
 | 
			
		||||
          pfd.cAccumBits += (pfd.cAccumAlphaBits = attribList[arg++]);
 | 
			
		||||
          break;
 | 
			
		||||
        default:
 | 
			
		||||
          break;
 | 
			
		||||
      }
 | 
			
		||||
    }
 | 
			
		||||
  }
 | 
			
		||||
  pixelFormat = ChoosePixelFormat((HDC) m_hDC, &pfd);
 | 
			
		||||
  if (pixelFormat == 0) {
 | 
			
		||||
    MessageBox(WindowFromDC((HDC) m_hDC), wxT("ChoosePixelFormat failed."), wxT("Error"),
 | 
			
		||||
               MB_ICONERROR | MB_OK);
 | 
			
		||||
    exit(1);
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  if (SetPixelFormat((HDC) m_hDC, pixelFormat, &pfd) != TRUE) {
 | 
			
		||||
    MessageBox(WindowFromDC((HDC) m_hDC), wxT("SetPixelFormat failed."), wxT("Error"),
 | 
			
		||||
               MB_ICONERROR | MB_OK);
 | 
			
		||||
    exit(1);
 | 
			
		||||
  }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void wxGLCanvas::SetupPalette(const wxPalette& palette)
 | 
			
		||||
{
 | 
			
		||||
    int pixelFormat = GetPixelFormat((HDC) m_hDC);
 | 
			
		||||
    PIXELFORMATDESCRIPTOR pfd;
 | 
			
		||||
 | 
			
		||||
    DescribePixelFormat((HDC) m_hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
 | 
			
		||||
 | 
			
		||||
    if (pfd.dwFlags & PFD_NEED_PALETTE)
 | 
			
		||||
    {
 | 
			
		||||
    }
 | 
			
		||||
    else
 | 
			
		||||
    {
 | 
			
		||||
	  return;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    m_palette = palette;
 | 
			
		||||
 | 
			
		||||
    if ( !m_palette.Ok() )
 | 
			
		||||
    {
 | 
			
		||||
        m_palette = CreateDefaultPalette();
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if (m_palette.Ok())
 | 
			
		||||
    {
 | 
			
		||||
        SelectPalette((HDC) m_hDC, (HPALETTE) m_palette.GetHPALETTE(), FALSE);
 | 
			
		||||
        RealizePalette((HDC) m_hDC);
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
wxPalette wxGLCanvas::CreateDefaultPalette()
 | 
			
		||||
{
 | 
			
		||||
    PIXELFORMATDESCRIPTOR pfd;
 | 
			
		||||
    int paletteSize;
 | 
			
		||||
    int pixelFormat = GetPixelFormat((HDC) m_hDC);
 | 
			
		||||
 | 
			
		||||
    DescribePixelFormat((HDC) m_hDC, pixelFormat, sizeof(PIXELFORMATDESCRIPTOR), &pfd);
 | 
			
		||||
 | 
			
		||||
    paletteSize = 1 << pfd.cColorBits;
 | 
			
		||||
 | 
			
		||||
    LOGPALETTE* pPal =
 | 
			
		||||
     (LOGPALETTE*) malloc(sizeof(LOGPALETTE) + paletteSize * sizeof(PALETTEENTRY));
 | 
			
		||||
    pPal->palVersion = 0x300;
 | 
			
		||||
    pPal->palNumEntries = paletteSize;
 | 
			
		||||
 | 
			
		||||
    /* build a simple RGB color palette */
 | 
			
		||||
    {
 | 
			
		||||
	int redMask = (1 << pfd.cRedBits) - 1;
 | 
			
		||||
	int greenMask = (1 << pfd.cGreenBits) - 1;
 | 
			
		||||
	int blueMask = (1 << pfd.cBlueBits) - 1;
 | 
			
		||||
	int i;
 | 
			
		||||
 | 
			
		||||
	for (i=0; i<paletteSize; ++i) {
 | 
			
		||||
	    pPal->palPalEntry[i].peRed =
 | 
			
		||||
		    (((i >> pfd.cRedShift) & redMask) * 255) / redMask;
 | 
			
		||||
	    pPal->palPalEntry[i].peGreen =
 | 
			
		||||
		    (((i >> pfd.cGreenShift) & greenMask) * 255) / greenMask;
 | 
			
		||||
	    pPal->palPalEntry[i].peBlue =
 | 
			
		||||
		    (((i >> pfd.cBlueShift) & blueMask) * 255) / blueMask;
 | 
			
		||||
	    pPal->palPalEntry[i].peFlags = 0;
 | 
			
		||||
	}
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    HPALETTE hPalette = CreatePalette(pPal);
 | 
			
		||||
    free(pPal);
 | 
			
		||||
 | 
			
		||||
    wxPalette palette;
 | 
			
		||||
    palette.SetHPALETTE((WXHPALETTE) hPalette);
 | 
			
		||||
 | 
			
		||||
    return palette;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void wxGLCanvas::SwapBuffers()
 | 
			
		||||
{
 | 
			
		||||
  if (m_glContext)
 | 
			
		||||
    m_glContext->SwapBuffers();
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void wxGLCanvas::OnSize(wxSizeEvent& event)
 | 
			
		||||
{
 | 
			
		||||
  int width, height;
 | 
			
		||||
  GetClientSize(& width, & height);
 | 
			
		||||
 | 
			
		||||
  if (m_glContext)
 | 
			
		||||
  {
 | 
			
		||||
    m_glContext->SetCurrent();
 | 
			
		||||
 | 
			
		||||
    glViewport(0, 0, (GLint)width, (GLint)height);
 | 
			
		||||
    glMatrixMode(GL_PROJECTION);
 | 
			
		||||
    glLoadIdentity();
 | 
			
		||||
    glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 15.0 );
 | 
			
		||||
    glMatrixMode(GL_MODELVIEW);
 | 
			
		||||
  }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void wxGLCanvas::SetCurrent()
 | 
			
		||||
{
 | 
			
		||||
  if (m_glContext)
 | 
			
		||||
  {
 | 
			
		||||
    m_glContext->SetCurrent();
 | 
			
		||||
  }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void wxGLCanvas::SetColour(const char *colour)
 | 
			
		||||
{
 | 
			
		||||
  if (m_glContext)
 | 
			
		||||
    m_glContext->SetColour(colour);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// TODO: Have to have this called by parent frame (?)
 | 
			
		||||
// So we need wxFrame to call OnQueryNewPalette for all children...
 | 
			
		||||
void wxGLCanvas::OnQueryNewPalette(wxQueryNewPaletteEvent& event)
 | 
			
		||||
{
 | 
			
		||||
  /* realize palette if this is the current window */
 | 
			
		||||
  if ( GetPalette()->Ok() ) {
 | 
			
		||||
    ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
 | 
			
		||||
    ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
 | 
			
		||||
    ::RealizePalette((HDC) GetHDC());
 | 
			
		||||
    Refresh();
 | 
			
		||||
    event.SetPaletteRealized(TRUE);
 | 
			
		||||
  }
 | 
			
		||||
  else
 | 
			
		||||
    event.SetPaletteRealized(FALSE);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
// I think this doesn't have to be propagated to child windows.
 | 
			
		||||
void wxGLCanvas::OnPaletteChanged(wxPaletteChangedEvent& event)
 | 
			
		||||
{
 | 
			
		||||
  /* realize palette if this is *not* the current window */
 | 
			
		||||
  if ( GetPalette() &&
 | 
			
		||||
       GetPalette()->Ok() && (this != event.GetChangedWindow()) )
 | 
			
		||||
  {
 | 
			
		||||
    ::UnrealizeObject((HPALETTE) GetPalette()->GetHPALETTE());
 | 
			
		||||
    ::SelectPalette((HDC) GetHDC(), (HPALETTE) GetPalette()->GetHPALETTE(), FALSE);
 | 
			
		||||
    ::RealizePalette((HDC) GetHDC());
 | 
			
		||||
    Refresh();
 | 
			
		||||
  }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* Give extensions proper function names. */
 | 
			
		||||
 | 
			
		||||
/* EXT_vertex_array */
 | 
			
		||||
void glArrayElementEXT(GLint i)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glColorPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glDrawArraysEXT(GLenum mode, GLint first, GLsizei count)
 | 
			
		||||
{
 | 
			
		||||
#ifdef GL_EXT_vertex_array
 | 
			
		||||
    static PFNGLDRAWARRAYSEXTPROC proc = 0;
 | 
			
		||||
 | 
			
		||||
    if ( !proc )
 | 
			
		||||
    {
 | 
			
		||||
        proc = (PFNGLDRAWARRAYSEXTPROC) wglGetProcAddress("glDrawArraysEXT");
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if ( proc )
 | 
			
		||||
        (* proc) (mode, first, count);
 | 
			
		||||
#endif
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glEdgeFlagPointerEXT(GLsizei stride, GLsizei count, const GLboolean *pointer)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glGetPointervEXT(GLenum pname, GLvoid* *params)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glIndexPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glNormalPointerEXT(GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
 | 
			
		||||
{
 | 
			
		||||
#ifdef GL_EXT_vertex_array
 | 
			
		||||
  static PFNGLNORMALPOINTEREXTPROC proc = 0;
 | 
			
		||||
 | 
			
		||||
  if ( !proc )
 | 
			
		||||
  {
 | 
			
		||||
    proc = (PFNGLNORMALPOINTEREXTPROC) wglGetProcAddress("glNormalPointerEXT");
 | 
			
		||||
  }
 | 
			
		||||
 | 
			
		||||
  if ( proc )
 | 
			
		||||
    (* proc) (type, stride, count, pointer);
 | 
			
		||||
#endif
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glTexCoordPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glVertexPointerEXT(GLint size, GLenum type, GLsizei stride, GLsizei count, const GLvoid *pointer)
 | 
			
		||||
{
 | 
			
		||||
#ifdef GL_EXT_vertex_array
 | 
			
		||||
  static PFNGLVERTEXPOINTEREXTPROC proc = 0;
 | 
			
		||||
 | 
			
		||||
  if ( !proc )
 | 
			
		||||
  {
 | 
			
		||||
    proc = (PFNGLVERTEXPOINTEREXTPROC) wglGetProcAddress("glVertexPointerEXT");
 | 
			
		||||
  }
 | 
			
		||||
  if ( proc )
 | 
			
		||||
    (* proc) (size, type, stride, count, pointer);
 | 
			
		||||
#endif
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* EXT_color_subtable */
 | 
			
		||||
void glColorSubtableEXT(GLenum target, GLsizei start, GLsizei count, GLenum format, GLenum type, const GLvoid *table)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* EXT_color_table */
 | 
			
		||||
void glColorTableEXT(GLenum target, GLenum internalformat, GLsizei width, GLenum format, GLenum type, const GLvoid *table)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glCopyColorTableEXT(GLenum target, GLenum internalformat, GLint x, GLint y, GLsizei width)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glGetColorTableEXT(GLenum target, GLenum format, GLenum type, GLvoid *table)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glGetColorTableParamaterfvEXT(GLenum target, GLenum pname, GLfloat *params)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glGetColorTavleParameterivEXT(GLenum target, GLenum pname, GLint *params)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* SGI_compiled_vertex_array */
 | 
			
		||||
void glLockArraysSGI(GLint first, GLsizei count)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glUnlockArraysSGI()
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
/* SGI_cull_vertex */
 | 
			
		||||
void glCullParameterdvSGI(GLenum pname, GLdouble* params)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
void glCullParameterfvSGI(GLenum pname, GLfloat* params)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* SGI_index_func */
 | 
			
		||||
void glIndexFuncSGI(GLenum func, GLclampf ref)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* SGI_index_material */
 | 
			
		||||
void glIndexMaterialSGI(GLenum face, GLenum mode)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* WIN_swap_hint */
 | 
			
		||||
void glAddSwapHintRectWin(GLint x, GLint y, GLsizei width, GLsizei height)
 | 
			
		||||
{
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#endif
 | 
			
		||||
    // wxUSE_GLCANVAS
 | 
			
		||||
		Reference in New Issue
	
	Block a user