Gtk，Glade和OpenGL问题

我有一些Gtk +，Glade和GtkGlext的问题。Gtk，Glade和OpenGL问题

代码：

#include <gtk-2.0/gtk/gtk.h> 
#include <gtkglext-1.0/gtk/gtkgl.h> 
#include <GL/gl.h> 

GtkBuilder* mBuilder; 
GtkWidget* mWindow; 
GtkWidget* mAbout; 
GtkWidget* mGlArea; 
GdkGLConfig *mGlConfig; 
GdkGLConfigMode mGlConfigMode; 

extern "C" G_MODULE_EXPORT void on_window_destroy(GtkObject *object, gpointer user_data) 
{ 
    gtk_main_quit(); 
} 

extern "C" G_MODULE_EXPORT void on_menuHelpAbout_activate(GtkObject *object, gpointer user_data) 
{    
    gtk_widget_show(mAbout); 
} 

extern "C" G_MODULE_EXPORT void on_aboutdialog1_close(GtkObject *object, gpointer user_data) 
{ 
    gtk_widget_hide(mAbout); 
} 

extern "C" G_MODULE_EXPORT void configure(GtkWidget *drawarea, GdkEventConfigure *event, gpointer user_data) 
{ 
    printf("%x\n", drawarea); 
    GdkGLContext *mGlContext = gtk_widget_get_gl_context(drawarea); 
    GdkGLDrawable *mGlDrawable = gtk_widget_get_gl_drawable(drawarea); 

    gdk_gl_drawable_gl_begin(mGlDrawable, mGlContext); 

    glLoadIdentity(); 
    glClearColor(0.0f, 0.0f, 0.0f, 1.0f); 

    gdk_gl_drawable_gl_end(mGlDrawable); 
} 

extern "C" G_MODULE_EXPORT void expose(GtkWidget *drawarea, GdkEventExpose *event, gpointer user_data) 
{ 
    GdkGLContext *mGlContext = gtk_widget_get_gl_context(drawarea); 
    GdkGLDrawable *mGlDrawable = gtk_widget_get_gl_drawable(drawarea); 

    gdk_gl_drawable_gl_begin(mGlDrawable, mGlContext); 

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT); 
    glLoadIdentity(); 

    gdk_gl_drawable_swap_buffers(mGlDrawable); 

    gdk_gl_drawable_gl_end(mGlDrawable); 
} 

int main(int argc, char *argv[]) 
{ 
    gtk_init(&argc, &argv); 
    gtk_gl_init(&argc, &argv); 

    mBuilder = gtk_builder_new(); 
    gtk_builder_add_from_file(mBuilder, "editor.xml", NULL); 
    mWindow = GTK_WIDGET(gtk_builder_get_object(mBuilder, "window")); 
    mAbout = GTK_WIDGET(gtk_builder_get_object(mBuilder, "aboutdialog1")); 
    mGlArea = GTK_WIDGET(gtk_builder_get_object(mBuilder, "drawingarea1")); 
    gtk_widget_set_events(mGlArea, GDK_EXPOSURE_MASK); 
    gtk_builder_connect_signals(mBuilder, NULL); 

    g_object_unref(G_OBJECT(mBuilder)); 

    gtk_widget_show(mWindow); 

    if(gtk_widget_get_realized(mGlArea)) 
    { 
     gtk_widget_unrealize(mGlArea); 
    } 

    mGlConfigMode = (GdkGLConfigMode)(GDK_GL_MODE_RGB | GDK_GL_MODE_DEPTH | GDK_GL_MODE_DOUBLE | GDK_GL_MODE_STENCIL); 

    mGlConfig = gdk_gl_config_new_by_mode(mGlConfigMode); 
    if(!mGlConfig) 
    { 
     printf("Error: Can't get OpenGL configuration\n"); 
    } 

    if(!gtk_widget_set_gl_capability(mGlArea, mGlConfig, NULL, TRUE, GDK_GL_RGBA_TYPE)) 
    { 
     printf("Error: Can't set OpenGL capability to drawable area\n"); 
    } 

    g_signal_connect(mGlArea, "configure-event", G_CALLBACK(configure), NULL); 
    g_signal_connect(mGlArea, "expose-event", G_CALLBACK(expose), NULL); 

    gtk_widget_show_all(mWindow); 

    gtk_main(); 

    return 0; 
}

其实我不知道为什么我在第30行得到分段错误，如地址似乎有效和OpenGL的初始化成功。任何人都可以指向正确的方向吗？

来源

2012-02-07 ZarakiKenpachi

代码在帖子中，而不是在Pastebin中。另外，你有没有尝试调试它？ – 2012-02-07 18:06:35

是和问题解决...问题不在代码中，但在编译和链接阶段。我的libgtkglext-x11-1.0不知怎的损坏了（gdb尖叫着说XVisualIDFromVisual做了SIGSEGV），所以我认为它可能会损坏并重新编译它。无论如何，谢谢你的时间。 – ZarakiKenpachi 2012-02-07 18:10:52

哦，队长11队！请回答您自己的问题并接受它，以便知道问题已得到解答，并且可能面临类似问题的其他人将有解决方案 – 2012-02-08 08:20:29

是和问题解决...问题不在代码中，但在编译和链接阶段。我的libgtkglext-x11-1.0不知怎的损坏了（gdb尖叫着说XVisualIDFromVisual做了SIGSEGV），所以我认为它可能会损坏并重新编译它。

来源

2012-02-11 18:20:22 ZarakiKenpachi

Gtk，Glade和OpenGL问题

回答

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