/////////////////////////////////////////////////////////////////////////////
-// Name: glcanvas.cpp
-// Purpose: wxGLCanvas, for using OpenGL/Mesa with wxWindows and GTK
+// Name: gtk/glcanvas.cpp
+// Purpose: wxGLCanvas, for using OpenGL/Mesa with wxWidgets and GTK
// Author: Robert Roebling
// Modified by:
// Created: 17/08/98
// RCS-ID: $Id$
// Copyright: (c) Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "glcanvas.h"
#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
#include "wx/setup.h"
#if wxUSE_GLCANVAS
#include "wx/module.h"
#include "wx/app.h"
-extern "C" {
+extern "C"
+{
#include "gtk/gtk.h"
#include "gdk/gdk.h"
#include "gdk/gdkx.h"
#include "wx/gtk/win_gtk.h"
+// DLL options compatibility check:
+#include "wx/build.h"
+WX_CHECK_BUILD_OPTIONS("wxGL")
+
+
+//---------------------------------------------------------------------------
+// static variables
+//---------------------------------------------------------------------------
+int wxGLCanvas::m_glxVersion = 0;
+
//---------------------------------------------------------------------------
// global data
//---------------------------------------------------------------------------
XVisualInfo *g_vi = (XVisualInfo*) NULL;
-
//-----------------------------------------------------------------------------
// idle system
//-----------------------------------------------------------------------------
m_widget = win->m_wxwindow;
wxGLCanvas *gc = (wxGLCanvas*) win;
- XVisualInfo *vi = (XVisualInfo *) gc->m_vi;
-
- wxCHECK_RET( vi, "invalid visual for OpenGl" );
-
+
+ if (wxGLCanvas::GetGLXVersion() >= 13)
+ {
+ // GLX >= 1.3
+ GLXFBConfig *fbc = gc->m_fbc;
+ wxCHECK_RET( fbc, _T("invalid GLXFBConfig for OpenGl") );
+ m_glContext = glXCreateNewContext( GDK_DISPLAY(), fbc[0], GLX_RGBA_TYPE, None, GL_TRUE );
+ }
+ else
+ {
+ // GLX <= 1.2
+ XVisualInfo *vi = (XVisualInfo *) gc->m_vi;
+ wxCHECK_RET( vi, _T("invalid visual for OpenGl") );
m_glContext = glXCreateContext( GDK_DISPLAY(), vi, None, GL_TRUE );
-
- wxCHECK_RET( m_glContext, "Couldn't create OpenGl context" );
+ }
+
+ wxCHECK_RET( m_glContext, _T("Couldn't create OpenGl context") );
}
-wxGLContext::wxGLContext(
- bool WXUNUSED(isRGB), wxWindow *win,
+wxGLContext::wxGLContext(
+ bool WXUNUSED(isRGB), wxWindow *win,
const wxPalette& WXUNUSED(palette),
const wxGLContext *other /* for sharing display lists */
)
m_widget = win->m_wxwindow;
wxGLCanvas *gc = (wxGLCanvas*) win;
- XVisualInfo *vi = (XVisualInfo *) gc->m_vi;
-
- wxCHECK_RET( vi, "invalid visual for OpenGl" );
-
- if( other != 0 )
- m_glContext = glXCreateContext( GDK_DISPLAY(), vi, other->m_glContext, GL_TRUE );
+
+ if (wxGLCanvas::GetGLXVersion() >= 13)
+ {
+ // GLX >= 1.3
+ GLXFBConfig *fbc = gc->m_fbc;
+ wxCHECK_RET( fbc, _T("invalid GLXFBConfig for OpenGl") );
+ m_glContext = glXCreateNewContext( GDK_DISPLAY(), fbc[0], GLX_RGBA_TYPE,
+ other ? other->m_glContext : None,
+ GL_TRUE );
+ }
else
- m_glContext = glXCreateContext( GDK_DISPLAY(), vi, None, GL_TRUE );
-
- wxCHECK_RET( m_glContext, "Couldn't create OpenGl context" );
+ {
+ // GLX <= 1.2
+ XVisualInfo *vi = (XVisualInfo *) gc->m_vi;
+ wxCHECK_RET( vi, _T("invalid visual for OpenGl") );
+ m_glContext = glXCreateContext( GDK_DISPLAY(), vi,
+ other ? other->m_glContext : None,
+ GL_TRUE );
+ }
+
+ if ( !m_glContext )
+ {
+ wxFAIL_MSG( _T("Couldn't create OpenGl context") );
+ }
}
wxGLContext::~wxGLContext()
{
if (!m_glContext) return;
-
+
if (m_glContext == glXGetCurrentContext())
{
+ if (wxGLCanvas::GetGLXVersion() >= 13)
+ // GLX >= 1.3
+ glXMakeContextCurrent( GDK_DISPLAY(), None, None, NULL);
+ else
+ // GLX <= 1.2
glXMakeCurrent( GDK_DISPLAY(), None, NULL);
}
-
+
glXDestroyContext( GDK_DISPLAY(), m_glContext );
}
void wxGLContext::SetCurrent()
{
- if (m_glContext)
- {
+ if (m_glContext)
+ {
GdkWindow *window = GTK_PIZZA(m_widget)->bin_window;
+
+ if (wxGLCanvas::GetGLXVersion() >= 13)
+ // GLX >= 1.3
+ glXMakeContextCurrent( GDK_DISPLAY(), GDK_WINDOW_XWINDOW(window), GDK_WINDOW_XWINDOW(window), m_glContext );
+ else
+ // GLX <= 1.2
glXMakeCurrent( GDK_DISPLAY(), GDK_WINDOW_XWINDOW(window), m_glContext );
}
}
-void wxGLContext::SetColour(const char *colour)
+void wxGLContext::SetColour(const wxChar *colour)
{
- float r = 0.0;
- float g = 0.0;
- float b = 0.0;
- wxColour *col = wxTheColourDatabase->FindColour(colour);
- if (col)
+ wxColour col = wxTheColourDatabase->Find(colour);
+ if (col.Ok())
{
- r = (float)(col->Red()/256.0);
- g = (float)(col->Green()/256.0);
- b = (float)(col->Blue()/256.0);
+ 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);
}
}
// "realize" from m_wxwindow
//-----------------------------------------------------------------------------
+extern "C" {
static gint
-gtk_glwindow_realized_callback( GtkWidget * WXUNUSED(widget), wxGLCanvas *win )
+gtk_glwindow_realized_callback( GtkWidget *WXUNUSED(widget), wxGLCanvas *win )
{
- wxGLContext *share= win->m_sharedContext;
- if (share==NULL && win->m_sharedContextOf) share=win->m_sharedContextOf->GetContext();
+ if ( !win->m_glContext )
+ {
+ wxGLContext *share = win->m_sharedContext;
+ if ( !share && win->m_sharedContextOf )
+ share = win->m_sharedContextOf->GetContext();
- win->m_glContext = new wxGLContext( TRUE, win, wxNullPalette, share );
+ win->m_glContext = new wxGLContext( TRUE, win, wxNullPalette, share );
+ }
return FALSE;
}
+}
//-----------------------------------------------------------------------------
// "map" from m_wxwindow
//-----------------------------------------------------------------------------
+extern "C" {
static gint
gtk_glwindow_map_callback( GtkWidget * WXUNUSED(widget), wxGLCanvas *win )
{
return FALSE;
}
+}
//-----------------------------------------------------------------------------
// "expose_event" of m_wxwindow
//-----------------------------------------------------------------------------
-static void
+extern "C" {
+static void
gtk_glwindow_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_event, wxGLCanvas *win )
{
- if (g_isIdle)
+ if (g_isIdle)
wxapp_install_idle_handler();
win->m_exposed = TRUE;
gdk_event->area.width,
gdk_event->area.height );
}
+}
//-----------------------------------------------------------------------------
// "draw" of m_wxwindow
//-----------------------------------------------------------------------------
-static void
+#ifndef __WXGTK20__
+extern "C" {
+static void
gtk_glwindow_draw_callback( GtkWidget *WXUNUSED(widget), GdkRectangle *rect, wxGLCanvas *win )
{
- if (g_isIdle)
+ if (g_isIdle)
wxapp_install_idle_handler();
win->m_exposed = TRUE;
win->GetUpdateRegion().Union( rect->x, rect->y,
rect->width, rect->height );
}
+}
+#endif
//-----------------------------------------------------------------------------
// "size_allocate" of m_wxwindow
//-----------------------------------------------------------------------------
-static void
+extern "C" {
+static void
gtk_glcanvas_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxGLCanvas *win )
{
if (g_isIdle)
event.SetEventObject( win );
win->GetEventHandler()->ProcessEvent( event );
}
+}
//---------------------------------------------------------------------------
// wxGlCanvas
//---------------------------------------------------------------------------
-IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow)
+IMPLEMENT_CLASS(wxGLCanvas, wxWindow)
-BEGIN_EVENT_TABLE(wxGLCanvas, wxScrolledWindow)
+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 )
+ const wxPoint& pos, const wxSize& size,
+ long style, const wxString& name,
+ int *attribList,
+ const wxPalette& palette )
{
Create( parent, NULL, NULL, id, pos, size, style, name, attribList, palette );
}
-wxGLCanvas::wxGLCanvas( wxWindow *parent,
+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 )
-{
+ const wxPoint& pos, const wxSize& size,
+ long style, const wxString& name,
+ int *attribList,
+ const wxPalette& palette )
+{
Create( parent, shared, NULL, id, pos, size, style, name, attribList, palette );
}
-wxGLCanvas::wxGLCanvas( wxWindow *parent,
+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 )
-{
+ const wxPoint& pos, const wxSize& size,
+ long style, const wxString& name,
+ int *attribList,
+ const wxPalette& palette )
+{
Create( parent, NULL, shared, id, pos, size, style, name, attribList, palette );
}
-bool wxGLCanvas::Create( wxWindow *parent,
+bool wxGLCanvas::Create( wxWindow *parent,
const wxGLContext *shared,
const wxGLCanvas *shared_context_of,
wxWindowID id,
- const wxPoint& pos, const wxSize& size,
- long style, const wxString& name,
- int *attribList,
- const wxPalette& palette)
+ const wxPoint& pos, const wxSize& size,
+ long style, const wxString& name,
+ int *attribList,
+ const wxPalette& palette)
{
- int data[512];
m_sharedContext = (wxGLContext*)shared; // const_cast
m_sharedContextOf = (wxGLCanvas*)shared_context_of; // const_cast
m_glContext = (wxGLContext*) NULL;
-
+
m_exposed = FALSE;
m_noExpose = TRUE;
m_nativeSizeEvent = TRUE;
-
- if (!attribList)
+ m_fbc = NULL;
+ m_vi = NULL;
+
+ // to be sure the glx version is known
+ wxGLCanvas::QueryGLXVersion();
+
+ if (wxGLCanvas::GetGLXVersion() >= 13)
+ {
+ // GLX >= 1.3 uses a GLXFBConfig
+ GLXFBConfig * fbc = NULL;
+ if (wxTheApp->m_glFBCInfo != NULL)
+ {
+ fbc = (GLXFBConfig *) wxTheApp->m_glFBCInfo;
+ m_canFreeFBC = FALSE; // owned by wxTheApp - don't free upon destruction
+ }
+ else
+ {
+ fbc = (GLXFBConfig *) wxGLCanvas::ChooseGLFBC(attribList);
+ m_canFreeFBC = TRUE;
+ }
+ m_fbc = fbc; // save for later use
+ wxCHECK_MSG( m_fbc, FALSE, _T("required FBConfig couldn't be found") );
+ }
+
+ XVisualInfo *vi = NULL;
+ if (wxTheApp->m_glVisualInfo != NULL)
{
- // default settings if attriblist = 0
- data[0] = GLX_RGBA;
- data[1] = GLX_DOUBLEBUFFER;
- data[2] = GLX_DOUBLEBUFFER;
- data[3] = GLX_DEPTH_SIZE; data[4] = 1;
- data[5] = GLX_RED_SIZE; data[6] = 1;
- data[7] = GLX_GREEN_SIZE; data[8] = 1;
- data[9] = GLX_BLUE_SIZE; data[10] = 1;
- data[11] = GLX_ALPHA_SIZE; data[12] = 0;
- data[13] = None;
-
- attribList = (int*) data;
+ vi = (XVisualInfo *)wxTheApp->m_glVisualInfo;
+ m_canFreeVi = FALSE; // owned by wxTheApp - don't free upon destruction
}
else
{
- int arg=0, p=0;
-
- while( (attribList[arg]!=0) && (p<510) )
- {
- switch( attribList[arg++] )
- {
- case WX_GL_RGBA: data[p++] = GLX_RGBA; break;
- case WX_GL_BUFFER_SIZE:
- data[p++]=GLX_BUFFER_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_LEVEL:
- data[p++]=GLX_LEVEL; data[p++]=attribList[arg++]; break;
- case WX_GL_DOUBLEBUFFER: data[p++] = GLX_DOUBLEBUFFER; break;
- case WX_GL_STEREO: data[p++] = GLX_STEREO; break;
- case WX_GL_AUX_BUFFERS:
- data[p++]=GLX_AUX_BUFFERS; data[p++]=attribList[arg++]; break;
- case WX_GL_MIN_RED:
- data[p++]=GLX_RED_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_MIN_GREEN:
- data[p++]=GLX_GREEN_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_MIN_BLUE:
- data[p++]=GLX_BLUE_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_MIN_ALPHA:
- data[p++]=GLX_ALPHA_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_DEPTH_SIZE:
- data[p++]=GLX_DEPTH_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_STENCIL_SIZE:
- data[p++]=GLX_STENCIL_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_MIN_ACCUM_RED:
- data[p++]=GLX_ACCUM_RED_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_MIN_ACCUM_GREEN:
- data[p++]=GLX_ACCUM_GREEN_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_MIN_ACCUM_BLUE:
- data[p++]=GLX_ACCUM_BLUE_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_MIN_ACCUM_ALPHA:
- data[p++]=GLX_ACCUM_ALPHA_SIZE; data[p++]=attribList[arg++]; break;
- default:
- break;
- }
- }
- data[p] = 0;
-
- attribList = (int*) data;
+ if (wxGLCanvas::GetGLXVersion() >= 13)
+ // GLX >= 1.3
+ vi = glXGetVisualFromFBConfig(GDK_DISPLAY(), m_fbc[0]);
+ else
+ // GLX <= 1.2
+ vi = (XVisualInfo *) ChooseGLVisual(attribList);
+ m_canFreeVi = TRUE;
}
-
-
- Display *dpy = GDK_DISPLAY();
-
- XVisualInfo *vi = glXChooseVisual( dpy, DefaultScreen(dpy), attribList );
-
- m_vi = vi; // safe for later use
-
- wxCHECK_MSG( m_vi, FALSE, "required visual couldn't be found" );
+ m_vi = vi; // save for later use
+ wxCHECK_MSG( m_vi, FALSE, _T("required visual couldn't be found") );
GdkVisual *visual = gdkx_visual_get( vi->visualid );
- GdkColormap *colormap = gdk_colormap_new( gdkx_visual_get(vi->visualid), TRUE );
-
+ GdkColormap *colormap = gdk_colormap_new( visual, TRUE );
+
gtk_widget_push_colormap( colormap );
gtk_widget_push_visual( visual );
- wxScrolledWindow::Create( parent, id, pos, size, style, name );
+ wxWindow::Create( parent, id, pos, size, style, name );
m_glWidget = m_wxwindow;
-
+
+#ifdef __WXGTK20__
+ gtk_widget_set_double_buffered( m_glWidget, FALSE );
+#endif
+
gtk_pizza_set_clear( GTK_PIZZA(m_wxwindow), FALSE );
-
+
gtk_signal_connect( GTK_OBJECT(m_wxwindow), "realize",
GTK_SIGNAL_FUNC(gtk_glwindow_realized_callback), (gpointer) this );
gtk_signal_connect( GTK_OBJECT(m_wxwindow), "expose_event",
GTK_SIGNAL_FUNC(gtk_glwindow_expose_callback), (gpointer)this );
+#ifndef __WXGTK20__
gtk_signal_connect( GTK_OBJECT(m_wxwindow), "draw",
GTK_SIGNAL_FUNC(gtk_glwindow_draw_callback), (gpointer)this );
-
+#endif
+
gtk_signal_connect( GTK_OBJECT(m_widget), "size_allocate",
GTK_SIGNAL_FUNC(gtk_glcanvas_size_callback), (gpointer)this );
gtk_widget_pop_visual();
gtk_widget_pop_colormap();
-
+
+ // if our parent window is already visible, we had been realized before we
+ // connected to the "realize" signal and hence our m_glContext hasn't been
+ // initialized yet and we have to do it now
+ if (GTK_WIDGET_REALIZED(m_wxwindow))
+ gtk_glwindow_realized_callback( m_wxwindow, this );
+
+ if (GTK_WIDGET_MAPPED(m_wxwindow))
+ gtk_glwindow_map_callback( m_wxwindow, this );
+
return TRUE;
}
wxGLCanvas::~wxGLCanvas()
{
- XVisualInfo *vi = (XVisualInfo *) m_vi;
-
- if (vi) XFree( vi );
- if (m_glContext) delete m_glContext;
+ GLXFBConfig * fbc = (GLXFBConfig *) m_fbc;
+ if (fbc && m_canFreeFBC) XFree( fbc );
+
+ XVisualInfo *vi = (XVisualInfo *) m_vi;
+ if (vi && m_canFreeVi) XFree( vi );
+
+ delete m_glContext;
}
-void wxGLCanvas::SwapBuffers()
+void* wxGLCanvas::ChooseGLVisual(int *attribList)
{
- if (m_glContext) m_glContext->SwapBuffers();
+ int data[512];
+ GetGLAttribListFromWX( attribList, data );
+ attribList = (int*) data;
+
+ Display *dpy = GDK_DISPLAY();
+
+ return glXChooseVisual( dpy, DefaultScreen(dpy), attribList );
}
-void wxGLCanvas::OnSize(wxSizeEvent& WXUNUSED(event))
+void* wxGLCanvas::ChooseGLFBC(int *attribList)
+{
+ int data[512];
+ GetGLAttribListFromWX( attribList, data );
+ attribList = (int*) data;
+
+ int returned;
+ return glXChooseFBConfig( GDK_DISPLAY(), DefaultScreen(GDK_DISPLAY()),
+ attribList, &returned );
+}
+
+
+void wxGLCanvas::GetGLAttribListFromWX(int *wx_attribList, int *gl_attribList )
+{
+ if (!wx_attribList)
+ {
+ if (wxGLCanvas::GetGLXVersion() >= 13)
+ // leave GLX >= 1.3 choose the default attributes
+ gl_attribList[0] = 0;
+ else
+ {
+ int i = 0;
+ // default settings if attriblist = 0
+ gl_attribList[i++] = GLX_RGBA;
+ gl_attribList[i++] = GLX_DOUBLEBUFFER;
+ gl_attribList[i++] = GLX_DEPTH_SIZE; gl_attribList[i++] = 1;
+ gl_attribList[i++] = GLX_RED_SIZE; gl_attribList[i++] = 1;
+ gl_attribList[i++] = GLX_GREEN_SIZE; gl_attribList[i++] = 1;
+ gl_attribList[i++] = GLX_BLUE_SIZE; gl_attribList[i++] = 1;
+ gl_attribList[i++] = GLX_ALPHA_SIZE; gl_attribList[i++] = 0;
+ gl_attribList[i++] = None;
+ }
+ }
+ else
+ {
+ int arg=0, p=0;
+ while( (wx_attribList[arg]!=0) && (p<510) )
+ {
+ switch( wx_attribList[arg++] )
+ {
+ case WX_GL_RGBA:
+ if (wxGLCanvas::GetGLXVersion() <= 12)
+ // for GLX >= 1.3, GLX_RGBA is useless (setting this flags will crash on most opengl implm)
+ gl_attribList[p++] = GLX_RGBA;
+ break;
+ case WX_GL_BUFFER_SIZE:
+ gl_attribList[p++]=GLX_BUFFER_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_LEVEL:
+ gl_attribList[p++]=GLX_LEVEL; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_DOUBLEBUFFER:
+ if (wxGLCanvas::GetGLXVersion() <= 12)
+ gl_attribList[p++] = GLX_DOUBLEBUFFER;
+ else
+ // for GLX >= 1.3, GLX_DOUBLEBUFFER format is different (1 <=> True)
+ // it seems this flag is useless for some hardware opengl implementation.
+ // but for Mesa 6.2.1, this flag is used so don't ignore it.
+ gl_attribList[p++] = GLX_DOUBLEBUFFER; gl_attribList[p++]=1;
+ break;
+ case WX_GL_STEREO: gl_attribList[p++] = GLX_STEREO; break;
+ case WX_GL_AUX_BUFFERS:
+ gl_attribList[p++]=GLX_AUX_BUFFERS; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_MIN_RED:
+ gl_attribList[p++]=GLX_RED_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_MIN_GREEN:
+ gl_attribList[p++]=GLX_GREEN_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_MIN_BLUE:
+ gl_attribList[p++]=GLX_BLUE_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_MIN_ALPHA:
+ gl_attribList[p++]=GLX_ALPHA_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_DEPTH_SIZE:
+ gl_attribList[p++]=GLX_DEPTH_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_STENCIL_SIZE:
+ gl_attribList[p++]=GLX_STENCIL_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_RED:
+ gl_attribList[p++]=GLX_ACCUM_RED_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_GREEN:
+ gl_attribList[p++]=GLX_ACCUM_GREEN_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_BLUE:
+ gl_attribList[p++]=GLX_ACCUM_BLUE_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ case WX_GL_MIN_ACCUM_ALPHA:
+ gl_attribList[p++]=GLX_ACCUM_ALPHA_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break;
+ default:
+ break;
+ }
+ }
+ gl_attribList[p] = 0;
+ }
+}
+
+void wxGLCanvas::QueryGLXVersion()
{
- int width, height;
- GetClientSize( &width, &height );
-
- if (m_glContext && GTK_WIDGET_REALIZED(m_glWidget) )
+ if (m_glxVersion == 0)
{
- 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);
+ // check the GLX version
+ int glxMajorVer, glxMinorVer;
+ bool ok = glXQueryVersion(GDK_DISPLAY(), &glxMajorVer, &glxMinorVer);
+ wxASSERT_MSG( ok, _T("GLX version not found") );
+ if (!ok)
+ m_glxVersion = 10; // 1.0 by default
+ else
+ m_glxVersion = glxMajorVer*10 + glxMinorVer;
}
}
+int wxGLCanvas::GetGLXVersion()
+{
+ wxASSERT_MSG( m_glxVersion>0, _T("GLX version has not been initialized with wxGLCanvas::QueryGLXVersion()") );
+ return m_glxVersion;
+}
+
+
+void wxGLCanvas::SwapBuffers()
+{
+ if (m_glContext)
+ m_glContext->SwapBuffers();
+}
+
+void wxGLCanvas::OnSize(wxSizeEvent& WXUNUSED(event))
+{
+}
+
void wxGLCanvas::SetCurrent()
{
- if (m_glContext) m_glContext->SetCurrent();
+ if (m_glContext)
+ m_glContext->SetCurrent();
}
-void wxGLCanvas::SetColour( const char *colour )
+void wxGLCanvas::SetColour( const wxChar *colour )
{
- if (m_glContext) m_glContext->SetColour( colour );
+ if (m_glContext)
+ m_glContext->SetColour( colour );
}
void wxGLCanvas::OnInternalIdle()
m_exposed = FALSE;
GetUpdateRegion().Clear();
}
-
+
wxWindow::OnInternalIdle();
}
+
+
+//---------------------------------------------------------------------------
+// wxGLApp
+//---------------------------------------------------------------------------
+
+IMPLEMENT_CLASS(wxGLApp, wxApp)
+
+wxGLApp::~wxGLApp()
+{
+ if (m_glFBCInfo)
+ XFree(m_glFBCInfo);
+ if (m_glVisualInfo)
+ XFree(m_glVisualInfo);
+}
+
+bool wxGLApp::InitGLVisual(int *attribList)
+{
+ wxGLCanvas::QueryGLXVersion();
+
+ if (wxGLCanvas::GetGLXVersion() >= 13)
+ {
+ // GLX >= 1.3
+ if (m_glFBCInfo)
+ XFree(m_glFBCInfo);
+ m_glFBCInfo = wxGLCanvas::ChooseGLFBC(attribList);
+
+ if (m_glFBCInfo)
+ {
+ if (m_glVisualInfo)
+ XFree(m_glVisualInfo);
+ m_glVisualInfo = glXGetVisualFromFBConfig(GDK_DISPLAY(), ((GLXFBConfig *)m_glFBCInfo)[0]);
+ }
+ return (m_glFBCInfo != NULL) && (m_glVisualInfo != NULL);
+ }
+ else
+ {
+ // GLX <= 1.2
+ if (m_glVisualInfo)
+ XFree(m_glVisualInfo);
+ m_glVisualInfo = wxGLCanvas::ChooseGLVisual(attribList);
+ return m_glVisualInfo != NULL;
+ }
+}
+
#endif
// wxUSE_GLCANVAS
projects / wxWidgets.git / blobdiff