+++ /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
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