light9 Changeset - 839545f174d3

Changeset - 839545f174d3

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Drew Perttula - 18 years ago 2007-06-09 06:02:52
drewp@bigasterisk.com

add drawPixels version

1 file changed with 22 insertions and 9 deletions:

lightsim/openglsim.py

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lightsim/openglsim.py

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 # see http://www.sgi.com/software/opengl/advanced97/notes/node57.html for accum notes
 import sys, time
 import numpy as num
 import numarray as num
 sys.path.append("/usr/lib/python2.4/site-packages/OpenGL/Tk/linux2-tk8.4")
 from OpenGL.GL import *
 from OpenGL.Tk import *
 import Togl
 import Tkinter as tk
 import Image
 def drawWithAlpha(imgString, w, h, alpha):
     """without opengl extensions"""
     t = time.time()
     ar = num.reshape(num.fromstring(imgString, dtype='uint8'),
@@ @@ -17,32 +22,37 @@ def drawWithAlpha(imgString, w, h, alpha @@
     print "  scl", time.time() - t
     glDrawPixels(w, h,
                  GL_RGBA, GL_UNSIGNED_BYTE, ar.tostring())
     print "  draw", time.time() - t
 def drawWithAlpha(imgString, w, h, alpha):
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
     glClear(GL_COLOR_BUFFER_BIT)
     #glBlendColor(1, 1, 1, mag) # needs ARB_imaging
     glDrawPixels(w, h, GL_RGBA, GL_UNSIGNED_BYTE, imgString)
 class Surface:
   def Display(self, event=None):
     assert 'GL_ARB_imaging' in glGetString(GL_EXTENSIONS).split()
     glClearColor(0.0, 0.0, 0.0, 0)
     glClear( GL_COLOR_BUFFER_BIT |GL_ACCUM_BUFFER_BIT)
     glEnable(GL_BLEND)
     #glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
     glBlendFunc(GL_SRC_ALPHA, GL_DST_ALPHA)
     l=glGenLists(1)
     glNewList(l,GL_COMPILE)
     glEndList()
 #    glDrawBuffer(GL_BACK)
     for x, img in enumerate(self.image):
       mag = self.scales[x].get()
       print "pic %i at %f" % (x,mag)
 #      glClear(GL_COLOR_BUFFER_BIT)
       #glBlendColor(1, 1, 1, mag) # needs ARB_imaging
       drawWithAlpha(img, self.imageWidth, self.imageHeight, mag)
 ##       if x==0:
 ##         glAccum(GL_LOAD,mag)
 ##       else:
@@ @@ -50,21 +60,21 @@ class Surface: @@
       # glAccum(GL_ADD,self.x)
       self.x=(self.x+.1)%2.0
 ##       glAccum(GL_RETURN,1)
   def SetupWindow(self):
     self.OglFrame = Frame()
+    self.OglFrame = tk.Frame()
     self.OglFrame.pack(side = 'top',fill='both',expand=1)
     self.QuitButton = Button(self.OglFrame, {'text':'Quit'})
+    self.QuitButton = tk.Button(self.OglFrame, {'text':'Quit'})
     self.QuitButton.bind('<ButtonRelease-1>', sys.exit)
     self.QuitButton.pack({'side':'top'})
   def SetupOpenGL(self):
     self.ogl = Opengl(master=self.OglFrame, width = 512, height = 270, double = 1, depth = 0)
+    self.ogl = Togl.Opengl(master=self.OglFrame, width = 512, height = 270, double = 1, depth = 0)
     self.ogl.pack(side = 'top', expand = 1, fill = 'both')
     self.ogl.set_centerpoint(0, 0, 0)
     self.ogl.redraw = self.Display
     for x in range(0,2):
       self.scales[x] = Scale(self.OglFrame,label="s%i"%x,from_=0,to=1,res=.05,orient='horiz',command=self.ogl.tkRedraw)
@@ @@ -77,24 +87,27 @@ class Surface: @@
     self.SetupWindow()
     self.image=[]
     for filename in ('skyline/bg.png', 'skyline/cyc-lo-red.png'):
       im = Image.open(filename)
       im.thumbnail((200, 200))
+      #im.thumbnail((200, 200))
       self.imageWidth = im.size[0]
       self.imageHeight = im.size[1]
       self.image.append(im.convert("RGBA").tostring())#"raw", "RGB", 0, -1))
       print self.imageWidth, self.imageHeight, self.imageWidth * self.imageHeight*4, len(self.image)
     self.SetupOpenGL()
     glDisable(GL_CULL_FACE)
     #         glEnable(GL_DEPTH_TEST)
     #         glEnable(GL_NORMALIZE)
     glShadeModel(GL_FLAT)
     print 'GL_ARB_imaging', 'GL_ARB_imaging' in glGetString(GL_EXTENSIONS)
     import OpenGL
     print OpenGL.__version__
     self.ogl.tkRedraw()
     self.ogl.mainloop()
 if __name__ == '__main__':
   Surface()

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