--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/python-2.5.2/win32/Lib/test/test_imgfile.py	Fri Apr 03 17:19:34 2009 +0100
@@ -0,0 +1,116 @@
+#! /usr/bin/env python
+
+"""Simple test script for imgfile.c
+   Roger E. Masse
+"""
+
+from test.test_support import verbose, unlink, findfile
+
+import imgfile, uu, os
+
+
+def main():
+
+    uu.decode(findfile('testrgb.uue'), 'test.rgb')
+    uu.decode(findfile('greyrgb.uue'), 'greytest.rgb')
+
+    # Test a 3 byte color image
+    testimage('test.rgb')
+
+    # Test a 1 byte greyscale image
+    testimage('greytest.rgb')
+
+    unlink('test.rgb')
+    unlink('greytest.rgb')
+
+def testimage(name):
+    """Run through the imgfile's battery of possible methods
+       on the image passed in name.
+    """
+
+    import sys
+    import os
+
+    outputfile = '/tmp/deleteme'
+
+    # try opening the name directly
+    try:
+        # This function returns a tuple (x, y, z) where x and y are the size
+        # of the image in pixels and z is the number of bytes per pixel. Only
+        # 3 byte RGB pixels and 1 byte greyscale pixels are supported.
+        sizes = imgfile.getsizes(name)
+    except imgfile.error:
+        # get a more qualified path component of the script...
+        if __name__ == '__main__':
+            ourname = sys.argv[0]
+        else: # ...or the full path of the module
+            ourname = sys.modules[__name__].__file__
+
+        parts = ourname.split(os.sep)
+        parts[-1] = name
+        name = os.sep.join(parts)
+        sizes = imgfile.getsizes(name)
+    if verbose:
+        print 'Opening test image: %s, sizes: %s' % (name, str(sizes))
+    # This function reads and decodes the image on the specified file,
+    # and returns it as a python string. The string has either 1 byte
+    # greyscale pixels or 4 byte RGBA pixels. The bottom left pixel
+    # is the first in the string. This format is suitable to pass
+    # to gl.lrectwrite, for instance.
+    image = imgfile.read(name)
+
+    # This function writes the RGB or greyscale data in data to
+    # image file file. x and y give the size of the image, z is
+    # 1 for 1 byte greyscale images or 3 for RGB images (which
+    # are stored as 4 byte values of which only the lower three
+    # bytes are used). These are the formats returned by gl.lrectread.
+    if verbose:
+        print 'Writing output file'
+    imgfile.write (outputfile, image, sizes[0], sizes[1], sizes[2])
+
+
+    if verbose:
+        print 'Opening scaled test image: %s, sizes: %s' % (name, str(sizes))
+    # This function is identical to read but it returns an image that
+    # is scaled to the given x and y sizes. If the filter and blur
+    # parameters are omitted scaling is done by simply dropping
+    # or duplicating pixels, so the result will be less than perfect,
+    # especially for computer-generated images.  Alternatively,
+    # you can specify a filter to use to smoothen the image after
+    # scaling. The filter forms supported are 'impulse', 'box',
+    # 'triangle', 'quadratic' and 'gaussian'. If a filter is
+    # specified blur is an optional parameter specifying the
+    # blurriness of the filter. It defaults to 1.0.  readscaled
+    # makes no attempt to keep the aspect ratio correct, so that
+    # is the users' responsibility.
+    if verbose:
+        print 'Filtering with "impulse"'
+    simage = imgfile.readscaled (name, sizes[0]/2, sizes[1]/2, 'impulse', 2.0)
+
+    # This function sets a global flag which defines whether the
+    # scan lines of the image are read or written from bottom to
+    # top (flag is zero, compatible with SGI GL) or from top to
+    # bottom(flag is one, compatible with X). The default is zero.
+    if verbose:
+        print 'Switching to X compatibility'
+    imgfile.ttob (1)
+
+    if verbose:
+        print 'Filtering with "triangle"'
+    simage = imgfile.readscaled (name, sizes[0]/2, sizes[1]/2, 'triangle', 3.0)
+    if verbose:
+        print 'Switching back to SGI compatibility'
+    imgfile.ttob (0)
+
+    if verbose: print 'Filtering with "quadratic"'
+    simage = imgfile.readscaled (name, sizes[0]/2, sizes[1]/2, 'quadratic')
+    if verbose: print 'Filtering with "gaussian"'
+    simage = imgfile.readscaled (name, sizes[0]/2, sizes[1]/2, 'gaussian', 1.0)
+
+    if verbose:
+        print 'Writing output file'
+    imgfile.write (outputfile, simage, sizes[0]/2, sizes[1]/2, sizes[2])
+
+    os.unlink(outputfile)
+
+main()