mirror of https://github.com/python/cpython
Remove the rgbimg module. It has been deprecated since Python 2.5.
This commit is contained in:
Brett Cannon
parent
8d76cca026
commit
dc48b74497
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@ -201,7 +201,6 @@ LIBFILES= $(MANSTYLES) $(INDEXSTYLES) $(COMMONTEX) \
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lib/libimageop.tex \
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lib/libaifc.tex \
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lib/libjpeg.tex \
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lib/librgbimg.tex \
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lib/libossaudiodev.tex \
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lib/libcrypto.tex \
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lib/libhashlib.tex \
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@ -327,7 +327,6 @@ and how to embed it in other applications.
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\input{libwave}
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\input{libchunk}
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\input{libcolorsys}
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\input{librgbimg}
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\input{libimghdr}
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\input{libsndhdr}
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\input{libossaudiodev}
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@ -1,54 +0,0 @@
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\section{\module{rgbimg} ---
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Read and write ``SGI RGB'' files}
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\declaremodule{builtin}{rgbimg}
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\modulesynopsis{Read and write image files in ``SGI RGB'' format (the module
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is \emph{not} SGI specific though!).}
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\deprecated{2.5}{This module is not maintained anymore and seems to be
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unused.}
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The \module{rgbimg} module allows Python programs to access SGI imglib image
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files (also known as \file{.rgb} files). The module is far from
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complete, but is provided anyway since the functionality that there is
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enough in some cases. Currently, colormap files are not supported.
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\note{This module is only built by default for 32-bit platforms; it is
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not expected to work properly on other systems.}
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The module defines the following variables and functions:
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\begin{excdesc}{error}
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This exception is raised on all errors, such as unsupported file type, etc.
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\end{excdesc}
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\begin{funcdesc}{sizeofimage}{file}
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This function returns a tuple \code{(\var{x}, \var{y})} where
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\var{x} and \var{y} are the size of the image in pixels.
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Only 4 byte RGBA pixels, 3 byte RGB pixels, and 1 byte greyscale pixels
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are currently supported.
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\end{funcdesc}
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\begin{funcdesc}{longimagedata}{file}
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This function reads and decodes the image on the specified file, and
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returns it as a Python string. The string has 4 byte RGBA pixels.
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The bottom left pixel is the first in
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the string. This format is suitable to pass to \function{gl.lrectwrite()},
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for instance.
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\end{funcdesc}
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\begin{funcdesc}{longstoimage}{data, x, y, z, file}
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This function writes the RGBA data in \var{data} to image
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file \var{file}. \var{x} and \var{y} give the size of the image.
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\var{z} is 1 if the saved image should be 1 byte greyscale, 3 if the
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saved image should be 3 byte RGB data, or 4 if the saved images should
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be 4 byte RGBA data. The input data always contains 4 bytes per pixel.
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These are the formats returned by \function{gl.lrectread()}.
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\end{funcdesc}
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\begin{funcdesc}{ttob}{flag}
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This function sets a global flag which defines whether the scan lines
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of the image are read or written from bottom to top (flag is zero,
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compatible with SGI GL) or from top to bottom (flag is one,
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compatible with X). The default is zero.
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\end{funcdesc}
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@ -1337,7 +1337,6 @@ class _ExpectedSkips:
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self.expected.add('test_timeout')
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if sys.maxint == 9223372036854775807L:
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self.expected.add('test_rgbimg')
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self.expected.add('test_imageop')
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if not sys.platform in ("mac", "darwin"):
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@ -1352,6 +1351,11 @@ class _ExpectedSkips:
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for skip in WIN_ONLY:
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self.expected.add(skip)
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if sys.platform != 'irix':
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IRIX_ONLY =["test_imageop"]
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for skip in IRIX_ONLY:
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self.expected.add(skip)
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self.valid = True
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def isvalid(self):
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@ -10,20 +10,13 @@ from test.test_support import verbose, unlink
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import imageop, uu, os
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import warnings
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warnings.filterwarnings("ignore",
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"the rgbimg module is deprecated",
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DeprecationWarning,
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".*test_imageop")
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def main(use_rgbimg=1):
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def main():
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# Create binary test files
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uu.decode(get_qualified_path('testrgb'+os.extsep+'uue'), 'test'+os.extsep+'rgb')
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if use_rgbimg:
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image, width, height = getrgbimage('test'+os.extsep+'rgb')
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else:
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image, width, height = getimage('test'+os.extsep+'rgb')
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image, width, height = getimage('test'+os.extsep+'rgb')
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# Return the selected part of image, which should by width by height
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# in size and consist of pixels of psize bytes.
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@ -122,23 +115,6 @@ def main(use_rgbimg=1):
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# Cleanup
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unlink('test'+os.extsep+'rgb')
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def getrgbimage(name):
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"""return a tuple consisting of image (in 'imgfile' format but
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using rgbimg instead) width and height"""
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import rgbimg
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try:
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sizes = rgbimg.sizeofimage(name)
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except rgbimg.error:
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name = get_qualified_path(name)
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sizes = rgbimg.sizeofimage(name)
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if verbose:
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print 'rgbimg opening test image: %s, sizes: %s' % (name, str(sizes))
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image = rgbimg.longimagedata(name)
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return (image, sizes[0], sizes[1])
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def getimage(name):
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"""return a tuple consisting of
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image (in 'imgfile' format) width and height
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@ -172,6 +148,4 @@ def get_qualified_path(name):
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return fullname
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return name
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# rgbimg (unlike imgfile) is portable to platforms other than SGI.
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# So we prefer to use it.
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main(use_rgbimg=1)
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main()
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@ -1,70 +0,0 @@
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# Testing rgbimg module
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import warnings
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warnings.filterwarnings("ignore",
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"the rgbimg module is deprecated",
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DeprecationWarning,
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".*test_rgbimg$")
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import rgbimg
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import os, uu
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from test.test_support import verbose, unlink, findfile
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class error(Exception):
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pass
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print 'RGBimg test suite:'
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def testimg(rgb_file, raw_file):
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rgb_file = findfile(rgb_file)
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raw_file = findfile(raw_file)
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width, height = rgbimg.sizeofimage(rgb_file)
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rgb = rgbimg.longimagedata(rgb_file)
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if len(rgb) != width * height * 4:
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raise error, 'bad image length'
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raw = open(raw_file, 'rb').read()
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if rgb != raw:
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raise error, \
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'images don\'t match for '+rgb_file+' and '+raw_file
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for depth in [1, 3, 4]:
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rgbimg.longstoimage(rgb, width, height, depth, '@.rgb')
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os.unlink('@.rgb')
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table = [
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('testrgb'+os.extsep+'uue', 'test'+os.extsep+'rgb'),
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('testimg'+os.extsep+'uue', 'test'+os.extsep+'rawimg'),
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('testimgr'+os.extsep+'uue', 'test'+os.extsep+'rawimg'+os.extsep+'rev'),
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]
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for source, target in table:
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source = findfile(source)
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target = findfile(target)
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if verbose:
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print "uudecoding", source, "->", target, "..."
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uu.decode(source, target)
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if verbose:
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print "testing..."
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ttob = rgbimg.ttob(0)
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if ttob != 0:
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raise error, 'ttob should start out as zero'
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testimg('test'+os.extsep+'rgb', 'test'+os.extsep+'rawimg')
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ttob = rgbimg.ttob(1)
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if ttob != 0:
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raise error, 'ttob should be zero'
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testimg('test'+os.extsep+'rgb', 'test'+os.extsep+'rawimg'+os.extsep+'rev')
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ttob = rgbimg.ttob(0)
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if ttob != 1:
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raise error, 'ttob should be one'
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ttob = rgbimg.ttob(0)
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if ttob != 0:
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raise error, 'ttob should be zero'
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for source, target in table:
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unlink(findfile(target))
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@ -636,6 +636,8 @@ Library
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Extension Modules
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-----------------
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- Removed the rgbimg module; been deprecated since Python 2.5.
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- Bug #1721309: prevent bsddb module from freeing random memory.
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- Bug #1686475: Support stat'ing open files on Windows again.
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@ -231,7 +231,6 @@ GLHACK=-Dclear=__GLclear
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#audioop audioop.c # Operations on audio samples
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#imageop imageop.c # Operations on images
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#rgbimg rgbimgmodule.c # Read SGI RGB image files (but coded portably)
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# Note that the _md5 and _sha modules are normally only built if the
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@ -1,780 +0,0 @@
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/*
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* fastimg -
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* Faster reading and writing of image files.
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*
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* This code should work on machines with any byte order.
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*
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* Could someone make this run real fast using multiple processors
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* or how about using memory mapped files to speed it up?
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*
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* Paul Haeberli - 1991
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*
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* Changed to return sizes.
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* Sjoerd Mullender - 1993
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* Changed to incorporate into Python.
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* Sjoerd Mullender - 1993
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*/
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#include "Python.h"
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#if SIZEOF_INT == 4
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typedef int Py_Int32;
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typedef unsigned int Py_UInt32;
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#else
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#if SIZEOF_LONG == 4
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typedef long Py_Int32;
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typedef unsigned long Py_UInt32;
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#else
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#error "No 4-byte integral type"
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#endif
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#endif
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#include <string.h>
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/*
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* from image.h
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*
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*/
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typedef struct {
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unsigned short imagic; /* stuff saved on disk . . */
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unsigned short type;
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unsigned short dim;
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unsigned short xsize;
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unsigned short ysize;
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unsigned short zsize;
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Py_UInt32 min;
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Py_UInt32 max;
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Py_UInt32 wastebytes;
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char name[80];
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Py_UInt32 colormap;
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Py_Int32 file; /* stuff used in core only */
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unsigned short flags;
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short dorev;
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short x;
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short y;
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short z;
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short cnt;
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unsigned short *ptr;
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unsigned short *base;
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unsigned short *tmpbuf;
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Py_UInt32 offset;
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Py_UInt32 rleend; /* for rle images */
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Py_UInt32 *rowstart; /* for rle images */
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Py_Int32 *rowsize; /* for rle images */
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} IMAGE;
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#define IMAGIC 0732
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#define TYPEMASK 0xff00
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#define BPPMASK 0x00ff
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#define ITYPE_VERBATIM 0x0000
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#define ITYPE_RLE 0x0100
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#define ISRLE(type) (((type) & 0xff00) == ITYPE_RLE)
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#define ISVERBATIM(type) (((type) & 0xff00) == ITYPE_VERBATIM)
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#define BPP(type) ((type) & BPPMASK)
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#define RLE(bpp) (ITYPE_RLE | (bpp))
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#define VERBATIM(bpp) (ITYPE_VERBATIM | (bpp))
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/*
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* end of image.h stuff
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*
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*/
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#define RINTLUM (79)
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#define GINTLUM (156)
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#define BINTLUM (21)
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#define ILUM(r,g,b) ((int)(RINTLUM*(r)+GINTLUM*(g)+BINTLUM*(b))>>8)
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#define OFFSET_R 3 /* this is byte order dependent */
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#define OFFSET_G 2
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#define OFFSET_B 1
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#define OFFSET_A 0
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#define CHANOFFSET(z) (3-(z)) /* this is byte order dependent */
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static void expandrow(unsigned char *, unsigned char *, int);
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static void setalpha(unsigned char *, int);
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static void copybw(Py_Int32 *, int);
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static void interleaverow(unsigned char*, unsigned char*, int, int);
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static int compressrow(unsigned char *, unsigned char *, int, int);
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static void lumrow(unsigned char *, unsigned char *, int);
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#ifdef ADD_TAGS
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#define TAGLEN (5)
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#else
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#define TAGLEN (0)
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#endif
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static PyObject *ImgfileError;
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static int reverse_order;
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#ifdef ADD_TAGS
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/*
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* addlongimgtag -
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* this is used to extract image data from core dumps.
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*
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*/
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static void
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addlongimgtag(Py_UInt32 *dptr, int xsize, int ysize)
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{
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dptr = dptr + (xsize * ysize);
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dptr[0] = 0x12345678;
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dptr[1] = 0x59493333;
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dptr[2] = 0x69434222;
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dptr[3] = xsize;
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dptr[4] = ysize;
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}
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#endif
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/*
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* byte order independent read/write of shorts and longs.
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*
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*/
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static unsigned short
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getshort(FILE *inf)
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{
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unsigned char buf[2];
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fread(buf, 2, 1, inf);
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return (buf[0] << 8) + (buf[1] << 0);
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}
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static Py_UInt32
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getlong(FILE *inf)
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{
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unsigned char buf[4];
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fread(buf, 4, 1, inf);
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return (buf[0] << 24) + (buf[1] << 16) + (buf[2] << 8) + (buf[3] << 0);
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}
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static void
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putshort(FILE *outf, unsigned short val)
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{
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unsigned char buf[2];
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buf[0] = (val >> 8);
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buf[1] = (val >> 0);
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fwrite(buf, 2, 1, outf);
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}
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static int
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putlong(FILE *outf, Py_UInt32 val)
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{
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unsigned char buf[4];
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buf[0] = (unsigned char) (val >> 24);
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buf[1] = (unsigned char) (val >> 16);
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buf[2] = (unsigned char) (val >> 8);
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buf[3] = (unsigned char) (val >> 0);
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return (int)fwrite(buf, 4, 1, outf);
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}
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static void
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readheader(FILE *inf, IMAGE *image)
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{
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memset(image ,0, sizeof(IMAGE));
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image->imagic = getshort(inf);
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image->type = getshort(inf);
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image->dim = getshort(inf);
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image->xsize = getshort(inf);
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image->ysize = getshort(inf);
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image->zsize = getshort(inf);
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}
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static int
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writeheader(FILE *outf, IMAGE *image)
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{
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IMAGE t;
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memset(&t, 0, sizeof(IMAGE));
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fwrite(&t, sizeof(IMAGE), 1, outf);
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fseek(outf, 0, SEEK_SET);
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putshort(outf, image->imagic);
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putshort(outf, image->type);
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putshort(outf, image->dim);
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putshort(outf, image->xsize);
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putshort(outf, image->ysize);
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putshort(outf, image->zsize);
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putlong(outf, image->min);
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putlong(outf, image->max);
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putlong(outf, 0);
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return (int)fwrite("no name", 8, 1, outf);
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}
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static int
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writetab(FILE *outf, /*unsigned*/ Py_Int32 *tab, int len)
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{
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int r = 0;
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while(len) {
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r = putlong(outf, *tab++);
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len--;
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}
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return r;
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}
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static void
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readtab(FILE *inf, /*unsigned*/ Py_Int32 *tab, int len)
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{
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while(len) {
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*tab++ = getlong(inf);
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len--;
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}
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}
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/*
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* sizeofimage -
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* return the xsize and ysize of an iris image file.
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*
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*/
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static PyObject *
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sizeofimage(PyObject *self, PyObject *args)
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{
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char *name;
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IMAGE image;
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FILE *inf;
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if (!PyArg_ParseTuple(args, "s:sizeofimage", &name))
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return NULL;
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inf = fopen(name, "rb");
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if (!inf) {
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PyErr_SetString(ImgfileError, "can't open image file");
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return NULL;
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}
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readheader(inf, &image);
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fclose(inf);
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if (image.imagic != IMAGIC) {
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PyErr_SetString(ImgfileError,
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"bad magic number in image file");
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return NULL;
|
||||
}
|
||||
return Py_BuildValue("(ii)", image.xsize, image.ysize);
|
||||
}
|
||||
|
||||
/*
|
||||
* longimagedata -
|
||||
* read in a B/W RGB or RGBA iris image file and return a
|
||||
* pointer to an array of longs.
|
||||
*
|
||||
*/
|
||||
static PyObject *
|
||||
longimagedata(PyObject *self, PyObject *args)
|
||||
{
|
||||
char *name;
|
||||
unsigned char *base, *lptr;
|
||||
unsigned char *rledat = NULL, *verdat = NULL;
|
||||
Py_Int32 *starttab = NULL, *lengthtab = NULL;
|
||||
FILE *inf = NULL;
|
||||
IMAGE image;
|
||||
int y, z, tablen;
|
||||
int xsize, ysize, zsize;
|
||||
int bpp, rle, cur, badorder;
|
||||
int rlebuflen;
|
||||
PyObject *rv = NULL;
|
||||
|
||||
if (!PyArg_ParseTuple(args, "s:longimagedata", &name))
|
||||
return NULL;
|
||||
|
||||
inf = fopen(name,"rb");
|
||||
if (!inf) {
|
||||
PyErr_SetString(ImgfileError, "can't open image file");
|
||||
return NULL;
|
||||
}
|
||||
readheader(inf,&image);
|
||||
if (image.imagic != IMAGIC) {
|
||||
PyErr_SetString(ImgfileError,
|
||||
"bad magic number in image file");
|
||||
goto finally;
|
||||
}
|
||||
rle = ISRLE(image.type);
|
||||
bpp = BPP(image.type);
|
||||
if (bpp != 1) {
|
||||
PyErr_SetString(ImgfileError,
|
||||
"image must have 1 byte per pix chan");
|
||||
goto finally;
|
||||
}
|
||||
xsize = image.xsize;
|
||||
ysize = image.ysize;
|
||||
zsize = image.zsize;
|
||||
if (rle) {
|
||||
tablen = ysize * zsize * sizeof(Py_Int32);
|
||||
starttab = (Py_Int32 *)malloc(tablen);
|
||||
lengthtab = (Py_Int32 *)malloc(tablen);
|
||||
rlebuflen = (int) (1.05 * xsize +10);
|
||||
rledat = (unsigned char *)malloc(rlebuflen);
|
||||
if (!starttab || !lengthtab || !rledat) {
|
||||
PyErr_NoMemory();
|
||||
goto finally;
|
||||
}
|
||||
|
||||
fseek(inf, 512, SEEK_SET);
|
||||
readtab(inf, starttab, ysize*zsize);
|
||||
readtab(inf, lengthtab, ysize*zsize);
|
||||
|
||||
/* check data order */
|
||||
cur = 0;
|
||||
badorder = 0;
|
||||
for(y = 0; y < ysize; y++) {
|
||||
for(z = 0; z < zsize; z++) {
|
||||
if (starttab[y + z * ysize] < cur) {
|
||||
badorder = 1;
|
||||
break;
|
||||
}
|
||||
cur = starttab[y +z * ysize];
|
||||
}
|
||||
if (badorder)
|
||||
break;
|
||||
}
|
||||
|
||||
fseek(inf, 512 + 2 * tablen, SEEK_SET);
|
||||
cur = 512 + 2 * tablen;
|
||||
rv = PyString_FromStringAndSize((char *)NULL,
|
||||
(xsize * ysize + TAGLEN) * sizeof(Py_Int32));
|
||||
if (rv == NULL)
|
||||
goto finally;
|
||||
|
||||
base = (unsigned char *) PyString_AsString(rv);
|
||||
#ifdef ADD_TAGS
|
||||
addlongimgtag(base,xsize,ysize);
|
||||
#endif
|
||||
if (badorder) {
|
||||
for (z = 0; z < zsize; z++) {
|
||||
lptr = base;
|
||||
if (reverse_order)
|
||||
lptr += (ysize - 1) * xsize
|
||||
* sizeof(Py_UInt32);
|
||||
for (y = 0; y < ysize; y++) {
|
||||
int idx = y + z * ysize;
|
||||
if (cur != starttab[idx]) {
|
||||
fseek(inf,starttab[idx],
|
||||
SEEK_SET);
|
||||
cur = starttab[idx];
|
||||
}
|
||||
if (lengthtab[idx] > rlebuflen) {
|
||||
PyErr_SetString(ImgfileError,
|
||||
"rlebuf is too small");
|
||||
Py_DECREF(rv);
|
||||
rv = NULL;
|
||||
goto finally;
|
||||
}
|
||||
fread(rledat, lengthtab[idx], 1, inf);
|
||||
cur += lengthtab[idx];
|
||||
expandrow(lptr, rledat, 3-z);
|
||||
if (reverse_order)
|
||||
lptr -= xsize
|
||||
* sizeof(Py_UInt32);
|
||||
else
|
||||
lptr += xsize
|
||||
* sizeof(Py_UInt32);
|
||||
}
|
||||
}
|
||||
} else {
|
||||
lptr = base;
|
||||
if (reverse_order)
|
||||
lptr += (ysize - 1) * xsize
|
||||
* sizeof(Py_UInt32);
|
||||
for (y = 0; y < ysize; y++) {
|
||||
for(z = 0; z < zsize; z++) {
|
||||
int idx = y + z * ysize;
|
||||
if (cur != starttab[idx]) {
|
||||
fseek(inf, starttab[idx],
|
||||
SEEK_SET);
|
||||
cur = starttab[idx];
|
||||
}
|
||||
fread(rledat, lengthtab[idx], 1, inf);
|
||||
cur += lengthtab[idx];
|
||||
expandrow(lptr, rledat, 3-z);
|
||||
}
|
||||
if (reverse_order)
|
||||
lptr -= xsize * sizeof(Py_UInt32);
|
||||
else
|
||||
lptr += xsize * sizeof(Py_UInt32);
|
||||
}
|
||||
}
|
||||
if (zsize == 3)
|
||||
setalpha(base, xsize * ysize);
|
||||
else if (zsize < 3)
|
||||
copybw((Py_Int32 *) base, xsize * ysize);
|
||||
}
|
||||
else {
|
||||
rv = PyString_FromStringAndSize((char *) 0,
|
||||
(xsize*ysize+TAGLEN)*sizeof(Py_Int32));
|
||||
if (rv == NULL)
|
||||
goto finally;
|
||||
|
||||
base = (unsigned char *) PyString_AsString(rv);
|
||||
#ifdef ADD_TAGS
|
||||
addlongimgtag(base, xsize, ysize);
|
||||
#endif
|
||||
verdat = (unsigned char *)malloc(xsize);
|
||||
if (!verdat) {
|
||||
Py_CLEAR(rv);
|
||||
goto finally;
|
||||
}
|
||||
|
||||
fseek(inf, 512, SEEK_SET);
|
||||
for (z = 0; z < zsize; z++) {
|
||||
lptr = base;
|
||||
if (reverse_order)
|
||||
lptr += (ysize - 1) * xsize
|
||||
* sizeof(Py_UInt32);
|
||||
for (y = 0; y < ysize; y++) {
|
||||
fread(verdat, xsize, 1, inf);
|
||||
interleaverow(lptr, verdat, 3-z, xsize);
|
||||
if (reverse_order)
|
||||
lptr -= xsize * sizeof(Py_UInt32);
|
||||
else
|
||||
lptr += xsize * sizeof(Py_UInt32);
|
||||
}
|
||||
}
|
||||
if (zsize == 3)
|
||||
setalpha(base, xsize * ysize);
|
||||
else if (zsize < 3)
|
||||
copybw((Py_Int32 *) base, xsize * ysize);
|
||||
}
|
||||
finally:
|
||||
if (starttab)
|
||||
free(starttab);
|
||||
if (lengthtab)
|
||||
free(lengthtab);
|
||||
if (rledat)
|
||||
free(rledat);
|
||||
if (verdat)
|
||||
free(verdat);
|
||||
fclose(inf);
|
||||
return rv;
|
||||
}
|
||||
|
||||
/* static utility functions for longimagedata */
|
||||
|
||||
static void
|
||||
interleaverow(unsigned char *lptr, unsigned char *cptr, int z, int n)
|
||||
{
|
||||
lptr += z;
|
||||
while (n--) {
|
||||
*lptr = *cptr++;
|
||||
lptr += 4;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
copybw(Py_Int32 *lptr, int n)
|
||||
{
|
||||
while (n >= 8) {
|
||||
lptr[0] = 0xff000000 + (0x010101 * (lptr[0] & 0xff));
|
||||
lptr[1] = 0xff000000 + (0x010101 * (lptr[1] & 0xff));
|
||||
lptr[2] = 0xff000000 + (0x010101 * (lptr[2] & 0xff));
|
||||
lptr[3] = 0xff000000 + (0x010101 * (lptr[3] & 0xff));
|
||||
lptr[4] = 0xff000000 + (0x010101 * (lptr[4] & 0xff));
|
||||
lptr[5] = 0xff000000 + (0x010101 * (lptr[5] & 0xff));
|
||||
lptr[6] = 0xff000000 + (0x010101 * (lptr[6] & 0xff));
|
||||
lptr[7] = 0xff000000 + (0x010101 * (lptr[7] & 0xff));
|
||||
lptr += 8;
|
||||
n -= 8;
|
||||
}
|
||||
while (n--) {
|
||||
*lptr = 0xff000000 + (0x010101 * (*lptr&0xff));
|
||||
lptr++;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
setalpha(unsigned char *lptr, int n)
|
||||
{
|
||||
while (n >= 8) {
|
||||
lptr[0 * 4] = 0xff;
|
||||
lptr[1 * 4] = 0xff;
|
||||
lptr[2 * 4] = 0xff;
|
||||
lptr[3 * 4] = 0xff;
|
||||
lptr[4 * 4] = 0xff;
|
||||
lptr[5 * 4] = 0xff;
|
||||
lptr[6 * 4] = 0xff;
|
||||
lptr[7 * 4] = 0xff;
|
||||
lptr += 4 * 8;
|
||||
n -= 8;
|
||||
}
|
||||
while (n--) {
|
||||
*lptr = 0xff;
|
||||
lptr += 4;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
expandrow(unsigned char *optr, unsigned char *iptr, int z)
|
||||
{
|
||||
unsigned char pixel, count;
|
||||
|
||||
optr += z;
|
||||
while (1) {
|
||||
pixel = *iptr++;
|
||||
if (!(count = (pixel & 0x7f)))
|
||||
return;
|
||||
if (pixel & 0x80) {
|
||||
while (count >= 8) {
|
||||
optr[0 * 4] = iptr[0];
|
||||
optr[1 * 4] = iptr[1];
|
||||
optr[2 * 4] = iptr[2];
|
||||
optr[3 * 4] = iptr[3];
|
||||
optr[4 * 4] = iptr[4];
|
||||
optr[5 * 4] = iptr[5];
|
||||
optr[6 * 4] = iptr[6];
|
||||
optr[7 * 4] = iptr[7];
|
||||
optr += 8 * 4;
|
||||
iptr += 8;
|
||||
count -= 8;
|
||||
}
|
||||
while (count--) {
|
||||
*optr = *iptr++;
|
||||
optr += 4;
|
||||
}
|
||||
}
|
||||
else {
|
||||
pixel = *iptr++;
|
||||
while (count >= 8) {
|
||||
optr[0 * 4] = pixel;
|
||||
optr[1 * 4] = pixel;
|
||||
optr[2 * 4] = pixel;
|
||||
optr[3 * 4] = pixel;
|
||||
optr[4 * 4] = pixel;
|
||||
optr[5 * 4] = pixel;
|
||||
optr[6 * 4] = pixel;
|
||||
optr[7 * 4] = pixel;
|
||||
optr += 8 * 4;
|
||||
count -= 8;
|
||||
}
|
||||
while (count--) {
|
||||
*optr = pixel;
|
||||
optr += 4;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* longstoimage -
|
||||
* copy an array of longs to an iris image file. Each long
|
||||
* represents one pixel. xsize and ysize specify the dimensions of
|
||||
* the pixel array. zsize specifies what kind of image file to
|
||||
* write out. if zsize is 1, the luminance of the pixels are
|
||||
* calculated, and a single channel black and white image is saved.
|
||||
* If zsize is 3, an RGB image file is saved. If zsize is 4, an
|
||||
* RGBA image file is saved.
|
||||
*
|
||||
*/
|
||||
static PyObject *
|
||||
longstoimage(PyObject *self, PyObject *args)
|
||||
{
|
||||
unsigned char *lptr;
|
||||
char *name;
|
||||
int xsize, ysize, zsize;
|
||||
FILE *outf = NULL;
|
||||
IMAGE image;
|
||||
int tablen, y, z, pos, len;
|
||||
Py_Int32 *starttab = NULL, *lengthtab = NULL;
|
||||
unsigned char *rlebuf = NULL;
|
||||
unsigned char *lumbuf = NULL;
|
||||
int rlebuflen;
|
||||
Py_ssize_t goodwrite;
|
||||
PyObject *retval = NULL;
|
||||
|
||||
if (!PyArg_ParseTuple(args, "s#iiis:longstoimage", &lptr, &len,
|
||||
&xsize, &ysize, &zsize, &name))
|
||||
return NULL;
|
||||
|
||||
goodwrite = 1;
|
||||
outf = fopen(name, "wb");
|
||||
if (!outf) {
|
||||
PyErr_SetString(ImgfileError, "can't open output file");
|
||||
return NULL;
|
||||
}
|
||||
tablen = ysize * zsize * sizeof(Py_Int32);
|
||||
|
||||
starttab = (Py_Int32 *)malloc(tablen);
|
||||
lengthtab = (Py_Int32 *)malloc(tablen);
|
||||
rlebuflen = (int) (1.05 * xsize + 10);
|
||||
rlebuf = (unsigned char *)malloc(rlebuflen);
|
||||
lumbuf = (unsigned char *)malloc(xsize * sizeof(Py_Int32));
|
||||
if (!starttab || !lengthtab || !rlebuf || !lumbuf) {
|
||||
PyErr_NoMemory();
|
||||
goto finally;
|
||||
}
|
||||
|
||||
memset(&image, 0, sizeof(IMAGE));
|
||||
image.imagic = IMAGIC;
|
||||
image.type = RLE(1);
|
||||
if (zsize>1)
|
||||
image.dim = 3;
|
||||
else
|
||||
image.dim = 2;
|
||||
image.xsize = xsize;
|
||||
image.ysize = ysize;
|
||||
image.zsize = zsize;
|
||||
image.min = 0;
|
||||
image.max = 255;
|
||||
goodwrite *= writeheader(outf, &image);
|
||||
pos = 512 + 2 * tablen;
|
||||
fseek(outf, pos, SEEK_SET);
|
||||
if (reverse_order)
|
||||
lptr += (ysize - 1) * xsize * sizeof(Py_UInt32);
|
||||
for (y = 0; y < ysize; y++) {
|
||||
for (z = 0; z < zsize; z++) {
|
||||
if (zsize == 1) {
|
||||
lumrow(lptr, lumbuf, xsize);
|
||||
len = compressrow(lumbuf, rlebuf,
|
||||
CHANOFFSET(z), xsize);
|
||||
} else {
|
||||
len = compressrow(lptr, rlebuf,
|
||||
CHANOFFSET(z), xsize);
|
||||
}
|
||||
if(len > rlebuflen) {
|
||||
PyErr_SetString(ImgfileError,
|
||||
"rlebuf is too small");
|
||||
goto finally;
|
||||
}
|
||||
goodwrite *= fwrite(rlebuf, len, 1, outf);
|
||||
starttab[y + z * ysize] = pos;
|
||||
lengthtab[y + z * ysize] = len;
|
||||
pos += len;
|
||||
}
|
||||
if (reverse_order)
|
||||
lptr -= xsize * sizeof(Py_UInt32);
|
||||
else
|
||||
lptr += xsize * sizeof(Py_UInt32);
|
||||
}
|
||||
|
||||
fseek(outf, 512, SEEK_SET);
|
||||
goodwrite *= writetab(outf, starttab, ysize*zsize);
|
||||
goodwrite *= writetab(outf, lengthtab, ysize*zsize);
|
||||
if (goodwrite) {
|
||||
Py_INCREF(Py_None);
|
||||
retval = Py_None;
|
||||
} else
|
||||
PyErr_SetString(ImgfileError, "not enough space for image");
|
||||
|
||||
finally:
|
||||
fclose(outf);
|
||||
free(starttab);
|
||||
free(lengthtab);
|
||||
free(rlebuf);
|
||||
free(lumbuf);
|
||||
return retval;
|
||||
}
|
||||
|
||||
/* static utility functions for longstoimage */
|
||||
|
||||
static void
|
||||
lumrow(unsigned char *rgbptr, unsigned char *lumptr, int n)
|
||||
{
|
||||
lumptr += CHANOFFSET(0);
|
||||
while (n--) {
|
||||
*lumptr = ILUM(rgbptr[OFFSET_R],
|
||||
rgbptr[OFFSET_G],
|
||||
rgbptr[OFFSET_B]);
|
||||
lumptr += 4;
|
||||
rgbptr += 4;
|
||||
}
|
||||
}
|
||||
|
||||
static int
|
||||
compressrow(unsigned char *lbuf, unsigned char *rlebuf, int z, int cnt)
|
||||
{
|
||||
unsigned char *iptr, *ibufend, *sptr, *optr;
|
||||
short todo, cc;
|
||||
Py_Int32 count;
|
||||
|
||||
lbuf += z;
|
||||
iptr = lbuf;
|
||||
ibufend = iptr + cnt * 4;
|
||||
optr = rlebuf;
|
||||
|
||||
while(iptr < ibufend) {
|
||||
sptr = iptr;
|
||||
iptr += 8;
|
||||
while ((iptr<ibufend) &&
|
||||
((iptr[-8]!=iptr[-4]) ||(iptr[-4]!=iptr[0])))
|
||||
{
|
||||
iptr += 4;
|
||||
}
|
||||
iptr -= 8;
|
||||
count = (iptr - sptr) / 4;
|
||||
while (count) {
|
||||
todo = count > 126 ? 126 : (short)count;
|
||||
count -= todo;
|
||||
*optr++ = 0x80 | todo;
|
||||
while (todo > 8) {
|
||||
optr[0] = sptr[0 * 4];
|
||||
optr[1] = sptr[1 * 4];
|
||||
optr[2] = sptr[2 * 4];
|
||||
optr[3] = sptr[3 * 4];
|
||||
optr[4] = sptr[4 * 4];
|
||||
optr[5] = sptr[5 * 4];
|
||||
optr[6] = sptr[6 * 4];
|
||||
optr[7] = sptr[7 * 4];
|
||||
optr += 8;
|
||||
sptr += 8 * 4;
|
||||
todo -= 8;
|
||||
}
|
||||
while (todo--) {
|
||||
*optr++ = *sptr;
|
||||
sptr += 4;
|
||||
}
|
||||
}
|
||||
sptr = iptr;
|
||||
cc = *iptr;
|
||||
iptr += 4;
|
||||
while ((iptr < ibufend) && (*iptr == cc))
|
||||
iptr += 4;
|
||||
count = (iptr - sptr) / 4;
|
||||
while (count) {
|
||||
todo = count > 126 ? 126 : (short)count;
|
||||
count -= todo;
|
||||
*optr++ = (unsigned char) todo;
|
||||
*optr++ = (unsigned char) cc;
|
||||
}
|
||||
}
|
||||
*optr++ = 0;
|
||||
return optr - (unsigned char *)rlebuf;
|
||||
}
|
||||
|
||||
static PyObject *
|
||||
ttob(PyObject *self, PyObject *args)
|
||||
{
|
||||
int order, oldorder;
|
||||
|
||||
if (!PyArg_ParseTuple(args, "i:ttob", &order))
|
||||
return NULL;
|
||||
oldorder = reverse_order;
|
||||
reverse_order = order;
|
||||
return PyInt_FromLong(oldorder);
|
||||
}
|
||||
|
||||
static PyMethodDef
|
||||
rgbimg_methods[] = {
|
||||
{"sizeofimage", sizeofimage, METH_VARARGS},
|
||||
{"longimagedata", longimagedata, METH_VARARGS},
|
||||
{"longstoimage", longstoimage, METH_VARARGS},
|
||||
{"ttob", ttob, METH_VARARGS},
|
||||
{NULL, NULL} /* sentinel */
|
||||
};
|
||||
|
||||
|
||||
PyMODINIT_FUNC
|
||||
initrgbimg(void)
|
||||
{
|
||||
PyObject *m, *d;
|
||||
m = Py_InitModule("rgbimg", rgbimg_methods);
|
||||
if (m == NULL)
|
||||
return;
|
||||
|
||||
if (PyErr_Warn(PyExc_DeprecationWarning,
|
||||
"the rgbimg module is deprecated"))
|
||||
return;
|
||||
|
||||
d = PyModule_GetDict(m);
|
||||
ImgfileError = PyErr_NewException("rgbimg.error", NULL, NULL);
|
||||
if (ImgfileError != NULL)
|
||||
PyDict_SetItemString(d, "error", ImgfileError);
|
||||
}
|
||||
6
README
6
README
|
|
@ -294,7 +294,7 @@ Unix platforms: If your vendor still ships (and you still use) Berkeley DB
|
|||
|
||||
XXX I think this next bit is out of date:
|
||||
|
||||
64-bit platforms: The modules audioop, imageop and rgbimg don't work.
|
||||
64-bit platforms: The modules audioop, and imageop don't work.
|
||||
The setup.py script disables them on 64-bit installations.
|
||||
Don't try to enable them in the Modules/Setup file. They
|
||||
contain code that is quite wordsize sensitive. (If you have a
|
||||
|
|
@ -466,9 +466,9 @@ QNX: Chris Herborth (chrish@qnx.com) writes:
|
|||
array, audioop, binascii, cPickle, cStringIO, cmath,
|
||||
crypt, curses, errno, fcntl, gdbm, grp, imageop,
|
||||
_locale, math, md5, new, operator, parser, pcre,
|
||||
posix, pwd, readline, regex, reop, rgbimg, rotor,
|
||||
posix, pwd, readline, regex, reop, rotor,
|
||||
select, signal, socket, soundex, strop, struct,
|
||||
syslog, termios, time, timing, zlib, audioop, imageop, rgbimg
|
||||
syslog, termios, time, timing, zlib, audioop, imageop
|
||||
|
||||
3) make SHELL=/usr/local/bin/bash
|
||||
|
||||
|
|
|
|||
4
setup.py
4
setup.py
|
|
@ -508,10 +508,8 @@ class PyBuildExt(build_ext):
|
|||
if sys.maxint != 9223372036854775807L:
|
||||
# Operations on images
|
||||
exts.append( Extension('imageop', ['imageop.c']) )
|
||||
# Read SGI RGB image files (but coded portably)
|
||||
exts.append( Extension('rgbimg', ['rgbimgmodule.c']) )
|
||||
else:
|
||||
missing.extend(['imageop', 'rgbimg'])
|
||||
missing.extend(['imageop'])
|
||||
|
||||
# readline
|
||||
do_readline = self.compiler.find_library_file(lib_dirs, 'readline')
|
||||
|
|
|
|||
Loading…
Reference in New Issue