some more context info printed

Author: jonwright

demo.py

@@ -23,6 +23,8 @@ def initgl(self):
         GL.glMatrixMode(GL.GL_PROJECTION)
         GL.glLoadIdentity()
         GLU.gluOrtho2D(-5,5,-5,5)
+        self.start = time.time()
+        self.nframes = 0
 
 
     def redraw(self):
@@ -35,11 +37,14 @@ def redraw(self):
             GL.glVertex2f( x, y )
         GL.glEnd()
         GL.glFlush()
+        self.nframes+=1
+        tm = time.time() - self.start
+        print("fps",self.nframes / tm, end="\r" )
 
 if __name__ == '__main__':
     root = Tk()
     app = AppOgl(root, width=320, height=200)
     app.pack(fill=BOTH, expand=YES)
-    app.animate=10
+    app.animate=1
     app.after(100, app.printContext)
     app.mainloop()

pyopengltk.py

@@ -63,11 +63,25 @@ def tkMap( self, evt ):
 
     def printContext(self):
         """ For debugging """
-        print( GL.glGetString(GL.GL_VENDOR),
-               GL.glGetString(GL.GL_RENDERER),
-               GL.glGetString(GL.GL_VERSION) )
+        print("Extension list:")
         exts = GL.glGetString(GL.GL_EXTENSIONS)
-        print( exts )
+        for e in sorted(exts.split()):
+            print(  "\t", e )
+        print( "GL_VENDOR  :",GL.glGetString(GL.GL_VENDOR))
+        print( "GL_RENDERER:",GL.glGetString(GL.GL_RENDERER))
+        print( "GL_VERSION :",GL.glGetString(GL.GL_VERSION))
+        try:
+            print(" GL_MAJOR_VERSION:", GL.glGetIntegerv( GL.GL_MAJOR_VERSION ))
+            print(" GL_MINOR_VERSION:", GL.glGetIntegerv( GL.GL_MINOR_VERSION ))
+            print(" GL_SHADING_LANGUAGE_VERSION :", 
+                    GL.glGetString(GL.GL_SHADING_LANGUAGE_VERSION))
+            msk = GL.glGetIntegerv(GL.GL_CONTEXT_PROFILE_MASK)
+            print(" GL_CONTEXT_CORE_PROFILE_BIT :",
+                   bool( msk & GL.GL_CONTEXT_CORE_PROFILE_BIT) )
+            print(" GL_CONTEXT_COMPATIBILITY_PROFILE_BIT :",
+                   bool( msk & GL.GL_CONTEXT_COMPATIBILITY_PROFILE_BIT) )
+        except:
+            raise
 
     def tkCreateContext( self ):
         # Platform dependent part

shader_example.py

@@ -82,8 +82,6 @@ def initgl(self):
         GL.glClearColor(0.15, 0.15, 0.15, 1.0)
         GL.glEnable(GL.GL_DEPTH_TEST)
         GL.glEnable(GL.GL_PROGRAM_POINT_SIZE)
-	print("GL_VERSION:",GL.glGetString(GL.GL_VERSION))
-        print("GLSL_VERSION",GL.glGetString(GL.GL_SHADING_LANGUAGE_VERSION))
         if not hasattr(self, "shader"):
             self.shader = OpenGL.GL.shaders.compileProgram(
                 OpenGL.GL.shaders.compileShader(vertex_shader, GL.GL_VERTEX_SHADER),
@@ -92,6 +90,7 @@ def initgl(self):
             self.vertex_array_object = create_object(self.shader)
             self.proj = GL.glGetUniformLocation( self.shader, 'proj')
         self.nframes = 0
+        self.start = time.time()
 
     def redraw(self):
         GL.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT)
@@ -105,7 +104,7 @@ def redraw(self):
         GL.glBindVertexArray( 0 )
         GL.glUseProgram( 0 )
         GL.glRasterPos2f(-0.99,-0.99);
-        if self.nframes > 0:
+        if self.nframes > 1:
             t = time.time()-self.start
             fps = "fps: %5.2f frames: %d"%(self.nframes / t, self.nframes)
             for c in fps:
@@ -116,9 +115,10 @@ def redraw(self):
 def main():
     root = tk.Tk()
     app = ShaderFrame(root, width=512,height=512)
-    app.start = time.time()
     app.pack(fill=tk.BOTH, expand=tk.YES)
+    app.after(100, app.printContext)
     app.animate=1000//60
+    app.animate=1
     app.mainloop()
 if __name__ == '__main__':
     main()