--- /dev/null
+/////////////////////////////////////////////////////////////////////////////
+// Name: glcanvas.cpp
+// Purpose: wxGLCanvas, for using OpenGL with wxWindows under Macintosh
+// Author: Stefan Csomor
+// Modified by:
+// Created: 1998-01-01
+// RCS-ID: $Id$
+// Copyright: (c) Stefan Csomor
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifdef __GNUG__
+#pragma implementation "glcanvas.h"
+#endif
+
+#include "wx/wxprec.h"
+
+#if defined(__BORLANDC__)
+#pragma hdrstop
+#endif
+
+#include "wx/setup.h"
+
+#if wxUSE_GLCANVAS
+
+#ifndef WX_PRECOMP
+#include "wx/frame.h"
+#endif
+
+#include "wx/settings.h"
+#include "wx/log.h"
+
+#include "wx/glcanvas.h"
+#include "wx/mac/uma.h"
+
+// DLL options compatibility check:
+#include "wx/build.h"
+WX_CHECK_BUILD_OPTIONS("wxGL")
+
+/*
+* GLContext implementation
+*/
+
+wxGLContext::wxGLContext(
+ AGLPixelFormat fmt, wxGLCanvas *win,
+ const wxPalette& palette,
+ const wxGLContext *other /* for sharing display lists */
+ )
+{
+ m_window = win;
+
+ m_drawable = (AGLDrawable) UMAGetWindowPort(MAC_WXHWND(win->MacGetRootWindow()));
+
+ m_glContext = aglCreateContext(fmt, other ? other->m_glContext : NULL);
+ wxCHECK_RET( m_glContext, wxT("Couldn't create OpenGl context") );
+
+ GLboolean b;
+ b = aglSetDrawable(m_glContext, m_drawable);
+ wxCHECK_RET( b, wxT("Couldn't bind OpenGl context") );
+ aglEnable(m_glContext , AGL_BUFFER_RECT ) ;
+ b = aglSetCurrentContext(m_glContext);
+ wxCHECK_RET( b, wxT("Couldn't activate OpenGl context") );
+}
+
+wxGLContext::~wxGLContext()
+{
+ if (m_glContext)
+ {
+ aglSetCurrentContext(NULL);
+ aglDestroyContext(m_glContext);
+ }
+}
+
+void wxGLContext::SwapBuffers()
+{
+ if (m_glContext)
+ {
+ aglSwapBuffers(m_glContext);
+ }
+}
+
+void wxGLContext::SetCurrent()
+{
+ if (m_glContext)
+ {
+ aglSetCurrentContext(m_glContext);
+ }
+}
+
+void wxGLContext::Update()
+{
+ if (m_glContext)
+ {
+ aglUpdateContext(m_glContext);
+ }
+}
+
+void wxGLContext::SetColour(const wxChar *colour)
+{
+ wxColour col = wxTheColourDatabase->Find(colour);
+ if (col.Ok())
+ {
+ float r = (float)(col.Red()/256.0);
+ float g = (float)(col.Green()/256.0);
+ float b = (float)(col.Blue()/256.0);
+ glColor3f( r, g, b);
+ }
+}
+
+
+/*
+* wxGLCanvas implementation
+*/
+
+IMPLEMENT_CLASS(wxGLCanvas, wxWindow)
+
+BEGIN_EVENT_TABLE(wxGLCanvas, wxWindow)
+ EVT_SIZE(wxGLCanvas::OnSize)
+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)
+{
+ Create(parent, NULL, id, pos, size, style, name, attribList, 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 )
+{
+ Create(parent, shared, id, pos, size, style, name, attribList, palette);
+}
+
+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 )
+{
+ Create(parent, shared ? shared->GetContext() : NULL, id, pos, size, style, name, attribList, palette);
+}
+
+wxGLCanvas::~wxGLCanvas()
+{
+ if (m_glContext != NULL) {
+ delete m_glContext;
+ m_glContext = NULL;
+ }
+}
+
+static AGLPixelFormat ChoosePixelFormat(const int *attribList)
+{
+ GLint data[512];
+ GLint defaultAttribs[] = { AGL_RGBA,
+ AGL_DOUBLEBUFFER,
+ AGL_MINIMUM_POLICY,
+ AGL_DEPTH_SIZE, 1, // use largest available depth buffer
+ AGL_RED_SIZE, 1,
+ AGL_GREEN_SIZE, 1,
+ AGL_BLUE_SIZE, 1,
+ AGL_ALPHA_SIZE, 0,
+ AGL_NONE };
+ GLint *attribs;
+ if (!attribList)
+ {
+ attribs = defaultAttribs;
+ }
+ else
+ {
+ int arg=0, p=0;
+
+ data[p++] = AGL_MINIMUM_POLICY; // make _SIZE tags behave more like GLX
+ while( (attribList[arg]!=0) && (p<512) )
+ {
+ switch( attribList[arg++] )
+ {
+ case WX_GL_RGBA: data[p++] = AGL_RGBA; break;
+ case WX_GL_BUFFER_SIZE:
+ data[p++]=AGL_BUFFER_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_LEVEL:
+ data[p++]=AGL_LEVEL; data[p++]=attribList[arg++]; break;
+ case WX_GL_DOUBLEBUFFER: data[p++] = AGL_DOUBLEBUFFER; break;
+ case WX_GL_STEREO: data[p++] = AGL_STEREO; break;
+ case WX_GL_AUX_BUFFERS:
+ data[p++]=AGL_AUX_BUFFERS; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_RED:
+ data[p++]=AGL_RED_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_GREEN:
+ data[p++]=AGL_GREEN_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_BLUE:
+ data[p++]=AGL_BLUE_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ALPHA:
+ data[p++]=AGL_ALPHA_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_DEPTH_SIZE:
+ data[p++]=AGL_DEPTH_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_STENCIL_SIZE:
+ data[p++]=AGL_STENCIL_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_RED:
+ data[p++]=AGL_ACCUM_RED_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_GREEN:
+ data[p++]=AGL_ACCUM_GREEN_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_BLUE:
+ data[p++]=AGL_ACCUM_BLUE_SIZE; data[p++]=attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_ALPHA:
+ data[p++]=AGL_ACCUM_ALPHA_SIZE; data[p++]=attribList[arg++]; break;
+ default:
+ break;
+ }
+ }
+ data[p] = 0;
+
+ attribs = data;
+ }
+
+ return aglChoosePixelFormat(NULL, 0, attribs);
+}
+
+bool wxGLCanvas::Create(wxWindow *parent, const wxGLContext *shared, wxWindowID id,
+ const wxPoint& pos, const wxSize& size, long style, const wxString& name,
+ int *attribList, const wxPalette& palette)
+{
+ wxWindow::Create( parent, id, pos, size, style, name );
+
+ AGLPixelFormat fmt = ChoosePixelFormat(attribList);
+ wxCHECK_MSG( fmt, false, wxT("Couldn't create OpenGl pixel format") );
+
+ m_glContext = new wxGLContext(fmt, this, palette, shared);
+ m_macCanvasIsShown = true ;
+ aglDestroyPixelFormat(fmt);
+
+ return true;
+}
+
+void wxGLCanvas::SwapBuffers()
+{
+ if (m_glContext)
+ m_glContext->SwapBuffers();
+}
+
+void wxGLCanvas::UpdateContext()
+{
+ if (m_glContext)
+ m_glContext->Update();
+}
+
+void wxGLCanvas::SetViewport()
+{
+ // viewport is initially set to entire port
+ // adjust glViewport to just this window
+ int x = 0 ;
+ int y = 0 ;
+
+ wxWindow* iter = this ;
+ while( iter->GetParent() )
+ {
+ iter = iter->GetParent() ;
+ }
+
+ if ( iter && iter->IsTopLevel() )
+ {
+ MacClientToRootWindow( &x , &y ) ;
+ int width, height;
+ GetClientSize(& width, & height);
+ Rect bounds ;
+ GetWindowPortBounds( MAC_WXHWND(MacGetRootWindow()) , &bounds ) ;
+ GLint parms[4] ;
+ parms[0] = x ;
+ parms[1] = bounds.bottom - bounds.top - ( y + height ) ;
+ parms[2] = width ;
+ parms[3] = height ;
+
+ if ( !m_macCanvasIsShown )
+ parms[0] += 20000 ;
+ aglSetInteger( m_glContext->m_glContext , AGL_BUFFER_RECT , parms ) ;
+ }
+}
+
+void wxGLCanvas::OnSize(wxSizeEvent& event)
+{
+ MacUpdateView() ;
+}
+
+void wxGLCanvas::MacUpdateView()
+{
+ if (m_glContext)
+ {
+ UpdateContext();
+ m_glContext->SetCurrent();
+ SetViewport();
+ }
+}
+
+void wxGLCanvas::MacSuperChangedPosition()
+{
+ MacUpdateView() ;
+ wxWindow::MacSuperChangedPosition() ;
+}
+
+void wxGLCanvas::MacTopLevelWindowChangedPosition()
+{
+ MacUpdateView() ;
+ wxWindow::MacTopLevelWindowChangedPosition() ;
+}
+
+void wxGLCanvas::SetCurrent()
+{
+ if (m_glContext)
+ {
+ m_glContext->SetCurrent();
+ }
+}
+
+void wxGLCanvas::SetColour(const wxChar *colour)
+{
+ if (m_glContext)
+ m_glContext->SetColour(colour);
+}
+
+bool wxGLCanvas::Show(bool show)
+{
+ if ( !wxWindow::Show( show ) )
+ return FALSE ;
+
+ if ( !show )
+ {
+ if ( m_macCanvasIsShown )
+ {
+ m_macCanvasIsShown = false ;
+ SetViewport() ;
+ }
+ }
+ else
+ {
+ if ( MacIsReallyShown() && !m_macCanvasIsShown )
+ {
+ m_macCanvasIsShown = true ;
+ SetViewport() ;
+ }
+ }
+ return TRUE ;
+}
+
+void wxGLCanvas::MacSuperShown( bool show )
+{
+ if ( !show )
+ {
+ if ( m_macCanvasIsShown )
+ {
+ m_macCanvasIsShown = false ;
+ SetViewport() ;
+ }
+ }
+ else
+ {
+ if ( MacIsReallyShown() && !m_macCanvasIsShown )
+ {
+ m_macCanvasIsShown = true ;
+ SetViewport() ;
+ }
+ }
+
+ wxWindow::MacSuperShown( show ) ;
+}
+
+//---------------------------------------------------------------------------
+// wxGLApp
+//---------------------------------------------------------------------------
+
+IMPLEMENT_CLASS(wxGLApp, wxApp)
+
+bool wxGLApp::InitGLVisual(int *attribList)
+{
+ AGLPixelFormat fmt = ChoosePixelFormat(attribList);
+ if (fmt != NULL) {
+ aglDestroyPixelFormat(fmt);
+ return true;
+ } else
+ return false;
+}
+
+wxGLApp::~wxGLApp(void)
+{
+}
+
+#endif // wxUSE_GLCANVAS
projects / wxWidgets.git / blobdiff