X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e6afccba51e094572f31de65e939987ecc683caf..51c9c13c05b3aa6e713b7bcfcc027e7ece75541c:/src/gtk/glcanvas.cpp?ds=sidebyside diff --git a/src/gtk/glcanvas.cpp b/src/gtk/glcanvas.cpp index 20ae99306b..c8b805cc00 100644 --- a/src/gtk/glcanvas.cpp +++ b/src/gtk/glcanvas.cpp @@ -1,454 +1,285 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: glcanvas.cpp -// Purpose: wxGLCanvas, for using OpenGL/Mesa with wxWindows and GTK +// Name: src/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__ -#pragma implementation "glcanvas.h" -#endif - -#include "wx/setup.h" +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #if wxUSE_GLCANVAS #include "wx/glcanvas.h" -#include "wx/frame.h" -#include "wx/colour.h" -#include "wx/module.h" -#include "wx/app.h" - -extern "C" { -#include "gtk/gtk.h" -#include "gdk/gdk.h" -#include "gdk/gdkx.h" -} - -#include "wx/gtk/win_gtk.h" +#ifndef WX_PRECOMP + #include "wx/app.h" + #include "wx/frame.h" + #include "wx/colour.h" + #include "wx/module.h" +#endif // WX_PRECOMP -//--------------------------------------------------------------------------- -// global data -//--------------------------------------------------------------------------- +#include +#include -XVisualInfo *g_vi = (XVisualInfo*) NULL; +#if WXWIN_COMPATIBILITY_2_8 //----------------------------------------------------------------------------- -// idle system +// "realize" from m_wxwindow: used to create m_glContext implicitly //----------------------------------------------------------------------------- -extern void wxapp_install_idle_handler(); -extern bool g_isIdle; - -//--------------------------------------------------------------------------- -// wxGLContext -//--------------------------------------------------------------------------- - -IMPLEMENT_CLASS(wxGLContext,wxObject) - -wxGLContext::wxGLContext( bool WXUNUSED(isRGB), wxWindow *win, const wxPalette& WXUNUSED(palette) ) -{ - m_window = win; - m_widget = win->m_wxwindow; - - wxGLCanvas *gc = (wxGLCanvas*) win; - XVisualInfo *vi = (XVisualInfo *) gc->m_vi; - - wxCHECK_RET( vi, "invalid visual for OpenGl" ); - - m_glContext = glXCreateContext( GDK_DISPLAY(), vi, None, GL_TRUE ); - - wxCHECK_RET( m_glContext, "Couldn't create OpenGl context" ); -} - -wxGLContext::wxGLContext( - bool WXUNUSED(isRGB), wxWindow *win, - const wxPalette& WXUNUSED(palette), - const wxGLContext *other /* for sharing display lists */ -) -{ - m_window = win; - 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 ); - else - m_glContext = glXCreateContext( GDK_DISPLAY(), vi, None, GL_TRUE ); - - wxCHECK_RET( m_glContext, "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::SwapBuffers() -{ - if (m_glContext) - { - GdkWindow *window = GTK_PIZZA(m_widget)->bin_window; - glXSwapBuffers( GDK_DISPLAY(), GDK_WINDOW_XWINDOW( window ) ); - } -} - -void wxGLContext::SetCurrent() -{ - 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) -{ - 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); - } -} - -void wxGLContext::SetupPixelFormat() +extern "C" { +static void +gtk_glwindow_realized_callback( GtkWidget *WXUNUSED(widget), wxGLCanvas *win ) { + win->GTKInitImplicitContext(); } - -void wxGLContext::SetupPalette( const wxPalette& WXUNUSED(palette) ) -{ } -wxPalette wxGLContext::CreateDefaultPalette() -{ - return wxNullPalette; -} - -//----------------------------------------------------------------------------- -// "realize" from m_wxwindow -//----------------------------------------------------------------------------- - -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(); - - win->m_glContext = new wxGLContext( TRUE, win, wxNullPalette, share ); - - return FALSE; -} +#endif // WXWIN_COMPATIBILITY_2_8 //----------------------------------------------------------------------------- // "map" from m_wxwindow //----------------------------------------------------------------------------- -static gint +extern "C" { +static void gtk_glwindow_map_callback( GtkWidget * WXUNUSED(widget), wxGLCanvas *win ) { - if (win->m_glContext/* && win->m_exposed*/) - { - wxPaintEvent event( win->GetId() ); - event.SetEventObject( win ); - win->GetEventHandler()->ProcessEvent( event ); - - win->m_exposed = FALSE; - win->GetUpdateRegion().Clear(); - } + wxPaintEvent event( win->GetId() ); + event.SetEventObject( win ); + win->HandleWindowEvent( event ); - return FALSE; + win->m_exposed = false; + win->GetUpdateRegion().Clear(); +} } //----------------------------------------------------------------------------- // "expose_event" of m_wxwindow //----------------------------------------------------------------------------- -static void +extern "C" { +static gboolean gtk_glwindow_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_event, wxGLCanvas *win ) { - if (g_isIdle) - wxapp_install_idle_handler(); - - win->m_exposed = TRUE; + win->m_exposed = true; win->GetUpdateRegion().Union( gdk_event->area.x, gdk_event->area.y, gdk_event->area.width, gdk_event->area.height ); + return false; } - -//----------------------------------------------------------------------------- -// "draw" of m_wxwindow -//----------------------------------------------------------------------------- - -static void -gtk_glwindow_draw_callback( GtkWidget *WXUNUSED(widget), GdkRectangle *rect, wxGLCanvas *win ) -{ - if (g_isIdle) - wxapp_install_idle_handler(); - - win->m_exposed = TRUE; - - win->GetUpdateRegion().Union( rect->x, rect->y, - rect->width, rect->height ); } //----------------------------------------------------------------------------- // "size_allocate" of m_wxwindow //----------------------------------------------------------------------------- -static void -gtk_glcanvas_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxGLCanvas *win ) +extern "C" { +static void +gtk_glcanvas_size_callback(GtkWidget *WXUNUSED(widget), + GtkAllocation * WXUNUSED(alloc), + wxGLCanvas *win) { - if (g_isIdle) - wxapp_install_idle_handler(); - if (!win->m_hasVMT) return; wxSizeEvent event( wxSize(win->m_width,win->m_height), win->GetId() ); event.SetEventObject( win ); - win->GetEventHandler()->ProcessEvent( event ); + win->HandleWindowEvent( event ); +} +} + +//----------------------------------------------------------------------------- +// emission hook for "parent-set" +//----------------------------------------------------------------------------- + +extern "C" { +static gboolean +parent_set_hook(GSignalInvocationHint*, guint, const GValue* param_values, void* data) +{ + wxGLCanvas* win = (wxGLCanvas*)data; + if (g_value_peek_pointer(¶m_values[0]) == win->m_wxwindow) + { + const XVisualInfo* xvi = win->GetXVisualInfo(); + GdkVisual* visual = gtk_widget_get_visual(win->m_wxwindow); + if (GDK_VISUAL_XVISUAL(visual)->visualid != xvi->visualid) + { + GdkScreen* screen = gtk_widget_get_screen(win->m_wxwindow); + visual = gdk_x11_screen_lookup_visual(screen, xvi->visualid); + GdkColormap* colormap = gdk_colormap_new(visual, false); + gtk_widget_set_colormap(win->m_wxwindow, colormap); + g_object_unref(colormap); + } + // remove hook + return false; + } + return true; +} } //--------------------------------------------------------------------------- // wxGlCanvas //--------------------------------------------------------------------------- -IMPLEMENT_CLASS(wxGLCanvas, wxScrolledWindow) - -BEGIN_EVENT_TABLE(wxGLCanvas, wxScrolledWindow) - 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 ) +IMPLEMENT_CLASS(wxGLCanvas, wxWindow) + +wxGLCanvas::wxGLCanvas(wxWindow *parent, + wxWindowID id, + const int *attribList, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name, + const wxPalette& palette) +#if WXWIN_COMPATIBILITY_2_8 + : m_createImplicitContext(false) +#endif { - Create( parent, NULL, NULL, id, pos, size, style, name, attribList, palette ); + Create(parent, 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, NULL, id, pos, size, style, name, attribList, palette ); -} +#if WXWIN_COMPATIBILITY_2_8 + +wxGLCanvas::wxGLCanvas(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name, + const int *attribList, + const wxPalette& palette) + : m_createImplicitContext(true) +{ + m_sharedContext = NULL; + m_sharedContextOf = NULL; -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, NULL, shared, id, pos, size, style, name, attribList, palette ); + Create(parent, id, pos, size, style, name, attribList, palette); } -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) +wxGLCanvas::wxGLCanvas(wxWindow *parent, + const wxGLContext *shared, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name, + const int *attribList, + const wxPalette& palette) + : m_createImplicitContext(true) { - 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) - { - // default settings if attriblist = 0 - data[0] = GLX_RGBA; - data[1] = GLX_DOUBLEBUFFER; - data[2] = GLX_DEPTH_SIZE; data[3] = 1; - data[4] = GLX_RED_SIZE; data[5] = 1; - data[6] = GLX_GREEN_SIZE; data[7] = 1; - data[8] = GLX_BLUE_SIZE; data[9] = 1; - data[10] = GLX_ALPHA_SIZE; data[11] = 0; - data[13] = None; - - attribList = (int*) data; - } - 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; + m_sharedContext = const_cast(shared); - 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(); - - return TRUE; + Create(parent, id, pos, size, style, name, attribList, palette); } -wxGLCanvas::~wxGLCanvas() +wxGLCanvas::wxGLCanvas(wxWindow *parent, + const wxGLCanvas *shared, + wxWindowID id, + const wxPoint& pos, const wxSize& size, + long style, const wxString& name, + const int *attribList, + const wxPalette& palette ) + : m_createImplicitContext(true) { - XVisualInfo *vi = (XVisualInfo *) m_vi; - - if (vi) XFree( vi ); - if (m_glContext) delete m_glContext; -} + m_sharedContext = NULL; + m_sharedContextOf = const_cast(shared); -void wxGLCanvas::SwapBuffers() -{ - if (m_glContext) m_glContext->SwapBuffers(); + Create(parent, id, pos, size, style, name, attribList, palette); } -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); - } -} +#endif // WXWIN_COMPATIBILITY_2_8 -void wxGLCanvas::SetCurrent() +bool wxGLCanvas::Create(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxString& name, + const int *attribList, + const wxPalette& WXUNUSED_UNLESS_DEBUG(palette)) { - if (m_glContext) m_glContext->SetCurrent(); + wxASSERT_MSG( !palette.IsOk(), _T("palettes not supported") ); + + m_exposed = false; + m_noExpose = true; + m_nativeSizeEvent = true; + + if ( !InitVisual(attribList) ) + return false; + + // watch for the "parent-set" signal on m_wxwindow so we can set colormap + // before m_wxwindow is realized (which will occur before + // wxWindow::Create() returns if parent is already visible) + unsigned sig_id = g_signal_lookup("parent-set", GTK_TYPE_WIDGET); + g_signal_add_emission_hook(sig_id, 0, parent_set_hook, this, NULL); + + wxWindow::Create( parent, id, pos, size, style, name ); + + gtk_widget_set_double_buffered(m_wxwindow, false); + +#if WXWIN_COMPATIBILITY_2_8 + g_signal_connect(m_wxwindow, "realize", G_CALLBACK(gtk_glwindow_realized_callback), this); +#endif // WXWIN_COMPATIBILITY_2_8 + g_signal_connect(m_wxwindow, "map", G_CALLBACK(gtk_glwindow_map_callback), this); + g_signal_connect(m_wxwindow, "expose_event", G_CALLBACK(gtk_glwindow_expose_callback), this); + g_signal_connect(m_widget, "size_allocate", G_CALLBACK(gtk_glcanvas_size_callback), this); + +#if WXWIN_COMPATIBILITY_2_8 + // 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 ); +#endif // WXWIN_COMPATIBILITY_2_8 + + if (GTK_WIDGET_MAPPED(m_wxwindow)) + gtk_glwindow_map_callback( m_wxwindow, this ); + + return true; } -void wxGLCanvas::SetColour( const char *colour ) +Window wxGLCanvas::GetXWindow() const { - if (m_glContext) m_glContext->SetColour( colour ); + GdkWindow *window = m_wxwindow->window; + return window ? GDK_WINDOW_XWINDOW(window) : 0; } void wxGLCanvas::OnInternalIdle() { - if (m_glContext && m_exposed) + if (m_exposed) { wxPaintEvent event( GetId() ); event.SetEventObject( this ); - GetEventHandler()->ProcessEvent( event ); + HandleWindowEvent( event ); - m_exposed = FALSE; + m_exposed = false; GetUpdateRegion().Clear(); } - + wxWindow::OnInternalIdle(); } -#endif - // wxUSE_GLCANVAS +#if WXWIN_COMPATIBILITY_2_8 + +void wxGLCanvas::GTKInitImplicitContext() +{ + if ( !m_glContext && m_createImplicitContext ) + { + wxGLContext *share = m_sharedContext; + if ( !share && m_sharedContextOf ) + share = m_sharedContextOf->m_glContext; + + m_glContext = new wxGLContext(this, share); + } +} + +#endif // WXWIN_COMPATIBILITY_2_8 +#endif // wxUSE_GLCANVAS