/////////////////////////////////////////////////////////////////////////////
-// 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")
+
//---------------------------------------------------------------------------
// global data
//---------------------------------------------------------------------------
wxGLCanvas *gc = (wxGLCanvas*) win;
XVisualInfo *vi = (XVisualInfo *) gc->m_vi;
-
- wxCHECK_RET( vi, "invalid visual for OpenGl" );
-
+
+ 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 */
)
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 );
- else
- m_glContext = glXCreateContext( GDK_DISPLAY(), vi, None, GL_TRUE );
-
- wxCHECK_RET( m_glContext, "Couldn't create OpenGl context" );
+
+ 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())
{
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;
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);
}
}
static gint
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();
+ // VZ: apparently in some cases we're called twice -- no idea why,
+ // but a check doesn't hurt
+ 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;
}
// "expose_event" of m_wxwindow
//-----------------------------------------------------------------------------
-static void
+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;
// "draw" of m_wxwindow
//-----------------------------------------------------------------------------
-static void
+#ifndef __WXGTK20__
+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
+static void
gtk_glcanvas_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxGLCanvas *win )
{
if (g_isIdle)
// 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;
-
+
+ XVisualInfo *vi = NULL;
+ if (wxTheApp->m_glVisualInfo != NULL)
+ {
+ vi = (XVisualInfo *) wxTheApp->m_glVisualInfo;
+ m_canFreeVi = FALSE; // owned by wxTheApp - don't free upon destruction
+ }
+ else
+ {
+ vi = (XVisualInfo *) ChooseGLVisual(attribList);
+ m_canFreeVi = TRUE;
+ }
+ 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( visual, TRUE );
+
+ gtk_widget_push_colormap( colormap );
+ gtk_widget_push_visual( visual );
+
+ 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), "map",
+ GTK_SIGNAL_FUNC(gtk_glwindow_map_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 (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 && m_canFreeVi) XFree( vi );
+ delete m_glContext;
+}
+
+void* wxGLCanvas::ChooseGLVisual(int *attribList)
+{
+ int data[512];
if (!attribList)
{
// default settings if attriblist = 0
data[10] = GLX_ALPHA_SIZE; data[11] = 0;
data[12] = None;
- attribList = (int*) data;
+ attribList = (int*) data;
}
else
{
int arg=0, p=0;
-
+
while( (attribList[arg]!=0) && (p<510) )
{
switch( attribList[arg++] )
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:
+ case WX_GL_DEPTH_SIZE:
data[p++]=GLX_DEPTH_SIZE; data[p++]=attribList[arg++]; break;
- case WX_GL_STENCIL_SIZE:
+ 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;
default:
break;
}
- }
- data[p] = 0;
+ }
+ data[p] = 0;
attribList = (int*) data;
}
-
-
- 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" );
-
- GdkVisual *visual = gdkx_visual_get( vi->visualid );
- GdkColormap *colormap = gdk_colormap_new( gdkx_visual_get(vi->visualid), TRUE );
-
- gtk_widget_push_colormap( colormap );
- gtk_widget_push_visual( visual );
- wxScrolledWindow::Create( parent, id, pos, size, style, name );
- m_glWidget = m_wxwindow;
-
- 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), "map",
- GTK_SIGNAL_FUNC(gtk_glwindow_map_callback), (gpointer) this );
-
- gtk_signal_connect( GTK_OBJECT(m_wxwindow), "expose_event",
- GTK_SIGNAL_FUNC(gtk_glwindow_expose_callback), (gpointer)this );
-
- gtk_signal_connect( GTK_OBJECT(m_wxwindow), "draw",
- GTK_SIGNAL_FUNC(gtk_glwindow_draw_callback), (gpointer)this );
-
- 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 (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;
-}
+ Display *dpy = GDK_DISPLAY();
-wxGLCanvas::~wxGLCanvas()
-{
- XVisualInfo *vi = (XVisualInfo *) m_vi;
-
- if (vi) XFree( vi );
- if (m_glContext) delete m_glContext;
+ return glXChooseVisual( dpy, DefaultScreen(dpy), attribList );
}
void wxGLCanvas::SwapBuffers()
{
- if (m_glContext) m_glContext->SwapBuffers();
+ if (m_glContext)
+ m_glContext->SwapBuffers();
}
void wxGLCanvas::OnSize(wxSizeEvent& WXUNUSED(event))
{
- int width, height;
- GetClientSize( &width, &height );
-
- if (m_glContext && GTK_WIDGET_REALIZED(m_glWidget) )
- {
- 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();
+ 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_glVisualInfo)
+ XFree(m_glVisualInfo);
+}
+
+bool wxGLApp::InitGLVisual(int *attribList)
+{
+ if (m_glVisualInfo)
+ XFree(m_glVisualInfo);
+
+ m_glVisualInfo = wxGLCanvas::ChooseGLVisual(attribList);
+
+ return m_glVisualInfo != NULL;
+}
+
#endif
// wxUSE_GLCANVAS
projects / wxWidgets.git / blobdiff