X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2b5f62a0b2db198609b45dec622a018dae37008e..222702b112dcc7bebe018d6f4d66fe469fefd02c:/src/gtk/glcanvas.cpp diff --git a/src/gtk/glcanvas.cpp b/src/gtk/glcanvas.cpp index ff037160c6..c30dae8354 100644 --- a/src/gtk/glcanvas.cpp +++ b/src/gtk/glcanvas.cpp @@ -1,6 +1,6 @@ ///////////////////////////////////////////////////////////////////////////// // Name: gtk/glcanvas.cpp -// Purpose: wxGLCanvas, for using OpenGL/Mesa with wxWindows and GTK +// Purpose: wxGLCanvas, for using OpenGL/Mesa with wxWidgets and GTK // Author: Robert Roebling // Modified by: // Created: 17/08/98 @@ -9,10 +9,13 @@ // 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 @@ -33,12 +36,21 @@ extern "C" #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 //----------------------------------------------------------------------------- @@ -58,11 +70,21 @@ wxGLContext::wxGLContext( bool WXUNUSED(isRGB), wxWindow *win, const wxPalette& m_widget = win->m_wxwindow; wxGLCanvas *gc = (wxGLCanvas*) win; - XVisualInfo *vi = (XVisualInfo *) gc->m_vi; + 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, _T("Couldn't create OpenGl context") ); } @@ -77,13 +99,25 @@ wxGLContext::wxGLContext( m_widget = win->m_wxwindow; wxGLCanvas *gc = (wxGLCanvas*) win; - XVisualInfo *vi = (XVisualInfo *) gc->m_vi; + 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 + { + // 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 ) { @@ -97,6 +131,11 @@ wxGLContext::~wxGLContext() 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); } @@ -117,21 +156,24 @@ void wxGLContext::SetCurrent() 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 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); } } @@ -153,21 +195,28 @@ wxPalette wxGLContext::CreateDefaultPalette() // "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 ) { @@ -183,11 +232,13 @@ gtk_glwindow_map_callback( GtkWidget * WXUNUSED(widget), wxGLCanvas *win ) return FALSE; } +} //----------------------------------------------------------------------------- // "expose_event" of m_wxwindow //----------------------------------------------------------------------------- +extern "C" { static void gtk_glwindow_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_event, wxGLCanvas *win ) { @@ -201,11 +252,14 @@ gtk_glwindow_expose_callback( GtkWidget *WXUNUSED(widget), GdkEventExpose *gdk_e gdk_event->area.width, gdk_event->area.height ); } +} //----------------------------------------------------------------------------- // "draw" of m_wxwindow //----------------------------------------------------------------------------- +#ifndef __WXGTK20__ +extern "C" { static void gtk_glwindow_draw_callback( GtkWidget *WXUNUSED(widget), GdkRectangle *rect, wxGLCanvas *win ) { @@ -217,11 +271,14 @@ gtk_glwindow_draw_callback( GtkWidget *WXUNUSED(widget), GdkRectangle *rect, wxG win->GetUpdateRegion().Union( rect->x, rect->y, rect->width, rect->height ); } +} +#endif //----------------------------------------------------------------------------- // "size_allocate" of m_wxwindow //----------------------------------------------------------------------------- +extern "C" { static void gtk_glcanvas_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, wxGLCanvas *win ) { @@ -235,6 +292,7 @@ gtk_glcanvas_size_callback( GtkWidget *WXUNUSED(widget), GtkAllocation* alloc, w event.SetEventObject( win ); win->GetEventHandler()->ProcessEvent( event ); } +} //--------------------------------------------------------------------------- // wxGlCanvas @@ -293,24 +351,51 @@ bool wxGLCanvas::Create( wxWindow *parent, m_exposed = FALSE; m_noExpose = TRUE; m_nativeSizeEvent = TRUE; + 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) { - vi = (XVisualInfo *) wxTheApp->m_glVisualInfo; + vi = (XVisualInfo *)wxTheApp->m_glVisualInfo; m_canFreeVi = FALSE; // owned by wxTheApp - don't free upon destruction } else { + 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; } 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 ); @@ -319,6 +404,10 @@ bool wxGLCanvas::Create( wxWindow *parent, 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", @@ -330,8 +419,10 @@ bool wxGLCanvas::Create( wxWindow *parent, 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 ); @@ -339,6 +430,9 @@ bool wxGLCanvas::Create( wxWindow *parent, 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 ); @@ -350,81 +444,137 @@ bool wxGLCanvas::Create( wxWindow *parent, wxGLCanvas::~wxGLCanvas() { - XVisualInfo *vi = (XVisualInfo *) m_vi; + GLXFBConfig * fbc = (GLXFBConfig *) m_fbc; + if (fbc && m_canFreeFBC) XFree( fbc ); + XVisualInfo *vi = (XVisualInfo *) m_vi; if (vi && m_canFreeVi) XFree( vi ); - if (m_glContext) delete m_glContext; + + delete m_glContext; } void* wxGLCanvas::ChooseGLVisual(int *attribList) { int data[512]; - 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[12] = None; + GetGLAttribListFromWX( attribList, data ); + attribList = (int*) data; + + Display *dpy = GDK_DISPLAY(); + + return glXChooseVisual( dpy, DefaultScreen(dpy), attribList ); +} +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( (attribList[arg]!=0) && (p<510) ) + while( (wx_attribList[arg]!=0) && (p<510) ) { - switch( attribList[arg++] ) + switch( wx_attribList[arg++] ) { - case WX_GL_RGBA: data[p++] = GLX_RGBA; break; + 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: - data[p++]=GLX_BUFFER_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_BUFFER_SIZE; gl_attribList[p++]=wx_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; + 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: - data[p++]=GLX_AUX_BUFFERS; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_AUX_BUFFERS; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_MIN_RED: - data[p++]=GLX_RED_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_RED_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_MIN_GREEN: - data[p++]=GLX_GREEN_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_GREEN_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_MIN_BLUE: - data[p++]=GLX_BLUE_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_BLUE_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_MIN_ALPHA: - data[p++]=GLX_ALPHA_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_ALPHA_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_DEPTH_SIZE: - data[p++]=GLX_DEPTH_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_DEPTH_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_STENCIL_SIZE: - data[p++]=GLX_STENCIL_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_STENCIL_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_MIN_ACCUM_RED: - data[p++]=GLX_ACCUM_RED_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_ACCUM_RED_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_MIN_ACCUM_GREEN: - data[p++]=GLX_ACCUM_GREEN_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_ACCUM_GREEN_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_MIN_ACCUM_BLUE: - data[p++]=GLX_ACCUM_BLUE_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_ACCUM_BLUE_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; case WX_GL_MIN_ACCUM_ALPHA: - data[p++]=GLX_ACCUM_ALPHA_SIZE; data[p++]=attribList[arg++]; break; + gl_attribList[p++]=GLX_ACCUM_ALPHA_SIZE; gl_attribList[p++]=wx_attribList[arg++]; break; default: break; } } - data[p] = 0; - - attribList = (int*) data; + gl_attribList[p] = 0; } +} +void wxGLCanvas::QueryGLXVersion() +{ + if (m_glxVersion == 0) + { + // 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; + } +} - Display *dpy = GDK_DISPLAY(); - - return glXChooseVisual( dpy, DefaultScreen(dpy), attribList ); +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) @@ -472,18 +622,39 @@ 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