GTK +和OpenGL綁定

Question

簡單和短：什麼是最先進的OpenGL的GTK +綁定？ 我寧願使用類似於QGLWidget的小部件。

注：我偶然發現gtkglext，gtkglarea和混亂。我讀了前兩個有缺點/嚴重問題。

Answer 1

更新：

由於Gtk+-3.16任何超越做不使用任何的下方！

如果你想用藝術的當前狀態，頂點/像素着色器，你應該使用最新的GNOME和依靠其上限：

廣泛報道了https://www.bassi.io/articles/2015/02/17/using-opengl-with-gtk/

---

好，我經歷了2小時以來讀取幾乎和我的結果是：

• gtkglext將完全地替代由OpenGL的後端，這不是我的本意
• 雜波有盒裝入對象的所有本地GL電話和不支持本機GL在所有來電，雖然它提供了許多predifened過濾器和有趣的東西

• gtkglarea顯得精緻，它的設計是可愛的。它在Qt的用法相同風格QGLWidget來繪圖（只要我能說的）simple demo of gtkglarea：

  #include <math.h> 
  #include <gtk/gtk.h> 
  #include <GL/gl.h> 
  #include <gtkgl/gtkglarea.h> 
  
  int init (GtkWidget *widget) 
  { 
  if (gtk_gl_area_make_current (GTK_GL_AREA(widget))) 
      { 
      glViewport(0,0, widget->allocation.width, widget->allocation.height); 
      glMatrixMode(GL_PROJECTION); 
      glLoadIdentity(); 
      glOrtho(0,100, 100,0, -1,1); 
      glMatrixMode(GL_MODELVIEW); 
      glLoadIdentity(); 
      } 
  
  return TRUE; 
  } 
  
  int draw (GtkWidget *widget, GdkEventExpose *event) 
  { 
  if (event->count > 0) return TRUE; 
  
  if (gtk_gl_area_make_current (GTK_GL_AREA(widget))) 
      { 
      glClearColor(0,0,0,1); 
      glClear(GL_COLOR_BUFFER_BIT); 
      glColor3f(1,1,1); 
      glBegin(GL_TRIANGLES); 
      glVertex2f(10,10); 
      glVertex2f(10,90); 
      glVertex2f(90,90); 
      glEnd(); 
      gtk_gl_area_swap_buffers (GTK_GL_AREA(widget)); 
      } 
  
  return TRUE; 
  } 
  
  int reshape (GtkWidget *widget, GdkEventConfigure *event) 
  { 
  if (gtk_gl_area_make_current (GTK_GL_AREA(widget))) 
      glViewport(0,0, widget->allocation.width, widget->allocation.height); 
  
  return TRUE; 
  } 
  
  int main (int argc, char **argv) 
  { 
  GtkWidget *window, *glarea; 
  
  int attrlist[] = { 
  GDK_GL_RGBA, 
  GDK_GL_RED_SIZE,1, 
  GDK_GL_GREEN_SIZE,1, 
  GDK_GL_BLUE_SIZE,1, 
  GDK_GL_DOUBLEBUFFER, 
  GDK_GL_NONE }; 
  
  gtk_init (&argc, &argv); 
  if (gdk_gl_query() == FALSE) return 0; 
  
  window = gtk_window_new (GTK_WINDOW_TOPLEVEL); 
  gtk_window_set_title (GTK_WINDOW(window), "Simple"); 
  gtk_container_set_border_width (GTK_CONTAINER(window), 10); 
  g_signal_connect (window, "delete_event", 
  G_CALLBACK (gtk_main_quit), NULL); 
  
  /* You should always delete gtk_gl_area widgets before exit or else 
      GLX contexts are left undeleted, this may cause problems (=core dump) 
      in some systems. 
      Destroy method of objects is not automatically called on exit. 
      You need to manually enable this feature. Do gtk_quit_add_destroy() 
      for all your top level windows unless you are certain that they get 
      destroy signal by other means. */ 
  
  gtk_quit_add_destroy (1, GTK_OBJECT(window)); 
  
  glarea = GTK_WIDGET(gtk_gl_area_new (attrlist)); 
  gtk_widget_set_size_request (GTK_WIDGET(glarea), 100, 100); 
  
  gtk_widget_set_events (GTK_WIDGET(glarea), GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK); 
  
  g_signal_connect (glarea, "expose_event", G_CALLBACK(draw), NULL); 
  g_signal_connect (glarea, "configure_event", G_CALLBACK(reshape), NULL); 
  g_signal_connect (glarea, "realize", G_CALLBACK(init), NULL); 
  
  gtk_container_add (GTK_CONTAINER(window), GTK_WIDGET(glarea)); 
  gtk_widget_show (GTK_WIDGET(glarea)); 
  gtk_widget_show (GTK_WIDGET(window)); 
  
  gtk_main(); 
  return 0; 
  } 
  

注：gtkglarea仍具有退出（至少1.99）

一些問題，如核心轉儲

注2：版本2.0.1修復了此問題

編輯：對於那些只尋求2D的人開羅似乎是最合適的。