/
api.py
1218 lines (900 loc) · 50.9 KB
/
api.py
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""":mod:`wand.api` --- Low-level interfaces
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.. versionchanged:: 0.1.10
Changed to throw :exc:`~exceptions.ImportError` instead of
:exc:`~exceptions.AttributeError` when the shared library fails to load.
"""
import ctypes
import ctypes.util
import itertools
import os
import os.path
import platform
import sys
import traceback
__all__ = ('MagickPixelPacket', 'PointInfo', 'AffineMatrix', 'c_magick_char_p',
'library', 'libc', 'libmagick', 'load_library')
class c_magick_char_p(ctypes.c_char_p):
"""This subclass prevents the automatic conversion behavior of
:class:`ctypes.c_char_p`, allowing memory to be properly freed in the
destructor. It must only be used for non-const character pointers
returned by ImageMagick functions.
"""
def __del__(self):
"""Relinquishes memory allocated by ImageMagick.
We don't need to worry about checking for ``NULL`` because
:c:func:`MagickRelinquishMemory` does that for us.
Note alslo that :class:`ctypes.c_char_p` has no
:meth:`~object.__del__` method, so we don't need to
(and indeed can't) call the superclass destructor.
"""
library.MagickRelinquishMemory(self)
def find_library(suffix=''):
"""Finds library path to try loading. The result paths are not
guaranteed that they exist.
:param suffix: optional suffix e.g. ``'-Q16'``
:type suffix: :class:`basestring`
:returns: a pair of libwand and libmagick paths. they can be the same.
path can be ``None`` as well
:rtype: :class:`tuple`
"""
libwand = None
system = platform.system()
magick_home = os.environ.get('MAGICK_HOME')
if magick_home:
if system == 'Windows':
libwand = 'CORE_RL_wand_{0}.dll'.format(suffix),
elif system == 'Darwin':
libwand = 'lib', 'libMagickWand{0}.dylib'.format(suffix),
else:
libwand = 'lib', 'libMagickWand{0}.so'.format(suffix),
libwand = os.path.join(magick_home, *libwand)
else:
if system == 'Windows':
libwand = ctypes.util.find_library('CORE_RL_wand_' + suffix)
else:
libwand = ctypes.util.find_library('MagickWand' + suffix)
if system == 'Windows':
# On Windows, the API is split between two libs. On other platforms,
# it's all contained in one.
libmagick_filename = 'CORE_RL_magick_' + suffix
if magick_home:
libmagick = os.path.join(magick_home, libmagick_filename + '.dll')
else:
libmagick = ctypes.util.find_library(libmagick_filename)
return libwand, libmagick
return libwand, libwand
def load_library():
"""Loads the MagickWand library.
:returns: the MagickWand library and the ImageMagick library
:rtype: :class:`ctypes.CDLL`
"""
tried_paths = []
versions = ('', '-Q16', '-Q8', '-6.Q16')
options = ('', 'HDRI')
combinations = itertools.product(versions, options)
for suffix in (version + option for version, option in combinations):
libwand_path, libmagick_path = find_library(suffix)
if libwand_path is None or libmagick_path is None:
continue
tried_paths.append(libwand_path)
try:
libwand = ctypes.CDLL(libwand_path)
if libwand_path == libmagick_path:
libmagick = libwand
else:
tried_paths.append(libmagick_path)
libmagick = ctypes.CDLL(libmagick_path)
except (IOError, OSError):
continue
return libwand, libmagick
raise IOError('cannot find library; tried paths: ' + repr(tried_paths))
if not hasattr(ctypes, 'c_ssize_t'):
if ctypes.sizeof(ctypes.c_uint) == ctypes.sizeof(ctypes.c_void_p):
ctypes.c_ssize_t = ctypes.c_int
elif ctypes.sizeof(ctypes.c_ulong) == ctypes.sizeof(ctypes.c_void_p):
ctypes.c_ssize_t = ctypes.c_long
elif ctypes.sizeof(ctypes.c_ulonglong) == ctypes.sizeof(ctypes.c_void_p):
ctypes.c_ssize_t = ctypes.c_longlong
class MagickPixelPacket(ctypes.Structure):
_fields_ = [('storage_class', ctypes.c_int),
('colorspace', ctypes.c_int),
('matte', ctypes.c_int),
('fuzz', ctypes.c_double),
('depth', ctypes.c_size_t),
('red', ctypes.c_double),
('green', ctypes.c_double),
('blue', ctypes.c_double),
('opacity', ctypes.c_double),
('index', ctypes.c_double)]
class PointInfo(ctypes.Structure):
_fields_ = [('x', ctypes.c_double),
('y', ctypes.c_double)]
class AffineMatrix(ctypes.Structure):
_fields_ = [('sx', ctypes.c_double),
('rx', ctypes.c_double),
('ry', ctypes.c_double),
('sy', ctypes.c_double),
('tx', ctypes.c_double),
('ty', ctypes.c_double)]
# Preserve the module itself even if it fails to import
sys.modules['wand._api'] = sys.modules['wand.api']
try:
libraries = load_library()
except (OSError, IOError):
msg = 'http://docs.wand-py.org/en/latest/guide/install.html'
if sys.platform.startswith('freebsd'):
msg = 'pkg_add -r'
elif sys.platform == 'win32':
msg += '#install-imagemagick-on-windows'
elif sys.platform == 'darwin':
mac_pkgmgrs = {'brew': 'brew install freetype imagemagick',
'port': 'port install imagemagick'}
for pkgmgr in mac_pkgmgrs:
with os.popen('which ' + pkgmgr) as f:
if f.read().strip():
msg = mac_pkgmgrs[pkgmgr]
break
else:
msg += '#install-imagemagick-on-mac'
else:
distname, _, __ = platform.linux_distribution()
distname = (distname or '').lower()
if distname in ('debian', 'ubuntu'):
msg = 'apt-get install libmagickwand-dev'
elif distname in ('fedora', 'centos', 'redhat'):
msg = 'yum install ImageMagick-devel'
raise ImportError('MagickWand shared library not found.\n'
'You probably had not installed ImageMagick library.\n'
'Try to install:\n ' + msg)
#: (:class:`ctypes.CDLL`) The MagickWand library.
library = libraries[0]
#: (:class:`ctypes.CDLL`) The ImageMagick library. It is the same with
#: :data:`library` on platforms other than Windows.
#:
#: .. versionadded:: 0.1.10
libmagick = libraries[1]
try:
library.MagickWandGenesis.argtypes = []
library.MagickWandTerminus.argtypes = []
library.NewMagickWand.argtypes = []
library.NewMagickWand.restype = ctypes.c_void_p
library.MagickNewImage.argtypes = [ctypes.c_void_p, ctypes.c_int,
ctypes.c_int, ctypes.c_void_p]
library.ClearMagickWand.argtypes = [ctypes.c_void_p]
library.DestroyMagickWand.argtypes = [ctypes.c_void_p]
library.DestroyMagickWand.restype = ctypes.c_void_p
library.CloneMagickWand.argtypes = [ctypes.c_void_p]
library.CloneMagickWand.restype = ctypes.c_void_p
library.IsMagickWand.argtypes = [ctypes.c_void_p]
library.MagickGetException.argtypes = [ctypes.c_void_p,
ctypes.POINTER(ctypes.c_int)]
library.MagickGetException.restype = c_magick_char_p
library.MagickClearException.argtypes = [ctypes.c_void_p]
library.MagickSetFilename.argtypes = [ctypes.c_void_p, ctypes.c_char_p]
library.MagickReadImageBlob.argtypes = [ctypes.c_void_p, ctypes.c_void_p,
ctypes.c_size_t]
library.MagickReadImage.argtypes = [ctypes.c_void_p, ctypes.c_char_p]
library.MagickReadImageFile.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
library.MagickGetImageFormat.argtypes = [ctypes.c_void_p]
library.MagickGetImageFormat.restype = c_magick_char_p
library.MagickSetImageFormat.argtypes = [ctypes.c_void_p, ctypes.c_char_p]
libmagick.MagickToMime.argtypes = [ctypes.c_char_p]
libmagick.MagickToMime.restype = c_magick_char_p
library.MagickGetImageSignature.argtypes = [ctypes.c_void_p]
library.MagickGetImageSignature.restype = c_magick_char_p
library.MagickGetImageProperty.argtypes = [ctypes.c_void_p,
ctypes.c_char_p]
library.MagickGetImageProperty.restype = c_magick_char_p
library.MagickGetImageProperties.argtypes = [
ctypes.c_void_p,
ctypes.c_char_p,
ctypes.POINTER(ctypes.c_size_t)
]
library.MagickGetImageProperties.restype = ctypes.POINTER(ctypes.c_char_p)
library.MagickSetImageProperty.argtypes = [ctypes.c_void_p,
ctypes.c_char_p,
ctypes.c_char_p]
library.MagickDeleteImageProperty.argtypes = [ctypes.c_void_p,
ctypes.c_char_p]
library.MagickGetImageBackgroundColor.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.MagickSetImageBackgroundColor.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.MagickGetImageAlphaChannel.argtypes = [ctypes.c_void_p]
library.MagickGetImageAlphaChannel.restype = ctypes.c_size_t
library.MagickSetImageAlphaChannel.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.MagickGetImageBlob.argtypes = [ctypes.c_void_p,
ctypes.POINTER(ctypes.c_size_t)]
library.MagickGetImageBlob.restype = ctypes.POINTER(ctypes.c_ubyte)
library.MagickGetImagesBlob.argtypes = [ctypes.c_void_p,
ctypes.POINTER(ctypes.c_size_t)]
library.MagickGetImagesBlob.restype = ctypes.POINTER(ctypes.c_ubyte)
library.MagickWriteImage.argtypes = [ctypes.c_void_p, ctypes.c_char_p]
library.MagickWriteImageFile.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
library.MagickWriteImages.argtypes = [ctypes.c_void_p, ctypes.c_char_p,
ctypes.c_int]
library.MagickWriteImagesFile.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
library.MagickGetImageResolution.argtypes = [
ctypes.c_void_p,
ctypes.POINTER(ctypes.c_double),
ctypes.POINTER(ctypes.c_double)
]
library.MagickSetImageResolution.argtypes = [ctypes.c_void_p,
ctypes.c_double,
ctypes.c_double]
library.MagickSetResolution.argtypes = [ctypes.c_void_p, ctypes.c_double,
ctypes.c_double]
library.MagickGetImageWidth.argtypes = [ctypes.c_void_p]
library.MagickGetImageWidth.restype = ctypes.c_size_t
library.MagickGetImageHeight.argtypes = [ctypes.c_void_p]
library.MagickGetImageHeight.restype = ctypes.c_size_t
library.MagickGetImageOrientation.argtypes = [ctypes.c_void_p]
library.MagickGetImageOrientation.restype = ctypes.c_int
library.MagickSetImageOrientation.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.MagickGetImageUnits.argtypes = [ctypes.c_void_p]
library.MagickSetImageUnits.argtypes = [ctypes.c_void_p, ctypes.c_int]
library.MagickGetImageColorspace.argtypes = [ctypes.c_void_p]
library.MagickGetImageColorspace.restype = ctypes.c_int
library.MagickSetImageColorspace.argtypes = [ctypes.c_void_p, ctypes.c_int]
library.MagickGetImageCompression.argtypes = [ctypes.c_void_p]
library.MagickGetImageCompression.restype = ctypes.c_int
library.MagickSetImageCompression.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.MagickGetImageDepth.argtypes = [ctypes.c_void_p]
library.MagickGetImageDepth.restype = ctypes.c_size_t
library.MagickSetImageDepth.argtypes = [ctypes.c_void_p]
library.MagickGetImageChannelDepth.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.MagickGetImageChannelDepth.restype = ctypes.c_size_t
library.MagickSeparateImageChannel.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.MagickCropImage.argtypes = [ctypes.c_void_p, ctypes.c_size_t,
ctypes.c_size_t, ctypes.c_ssize_t,
ctypes.c_ssize_t]
library.MagickFlipImage.argtypes = [ctypes.c_void_p]
library.MagickFlopImage.argtypes = [ctypes.c_void_p]
library.MagickResetImagePage.argtypes = [ctypes.c_void_p, ctypes.c_char_p]
library.MagickSampleImage.argtypes = [ctypes.c_void_p, ctypes.c_size_t,
ctypes.c_size_t]
library.MagickResizeImage.argtypes = [ctypes.c_void_p, ctypes.c_size_t,
ctypes.c_size_t, ctypes.c_int,
ctypes.c_double]
library.MagickTransformImage.argtypes = [ctypes.c_void_p, ctypes.c_char_p,
ctypes.c_char_p]
library.MagickTransformImage.restype = ctypes.c_void_p
library.MagickTransparentPaintImage.argtypes = [
ctypes.c_void_p, ctypes.c_void_p, ctypes.c_double, ctypes.c_double,
ctypes.c_int
]
library.MagickLiquidRescaleImage.argtypes = [
ctypes.c_void_p, ctypes.c_size_t, ctypes.c_size_t,
ctypes.c_double, ctypes.c_double
]
library.MagickRotateImage.argtypes = [ctypes.c_void_p, ctypes.c_void_p,
ctypes.c_double]
library.MagickBorderImage.argtypes = [ctypes.c_void_p, ctypes.c_void_p,
ctypes.c_size_t, ctypes.c_size_t]
library.MagickResetIterator.argtypes = [ctypes.c_void_p]
library.MagickSetLastIterator.argtypes = [ctypes.c_void_p]
library.MagickGetIteratorIndex.argtypes = [ctypes.c_void_p]
library.MagickGetIteratorIndex.restype = ctypes.c_ssize_t
library.MagickCoalesceImages.argtypes = [ctypes.c_void_p]
library.MagickCoalesceImages.restype = ctypes.c_void_p
library.MagickIdentifyImage.argtypes = [ctypes.c_void_p]
library.MagickIdentifyImage.restype = ctypes.c_char_p
library.MagickRelinquishMemory.argtypes = [ctypes.c_void_p]
library.MagickRelinquishMemory.restype = ctypes.c_void_p
library.NewPixelIterator.argtypes = [ctypes.c_void_p]
library.NewPixelIterator.restype = ctypes.c_void_p
library.DestroyPixelIterator.argtypes = [ctypes.c_void_p]
library.DestroyPixelIterator.restype = ctypes.c_void_p
library.ClonePixelIterator.argtypes = [ctypes.c_void_p]
library.ClonePixelIterator.restype = ctypes.c_void_p
library.IsPixelIterator.argtypes = [ctypes.c_void_p]
library.PixelGetIteratorException.argtypes = [ctypes.c_void_p,
ctypes.POINTER(ctypes.c_int)]
library.PixelGetIteratorException.restype = c_magick_char_p
library.PixelClearIteratorException.argtypes = [ctypes.c_void_p]
library.PixelSetFirstIteratorRow.argtypes = [ctypes.c_void_p]
library.PixelSetIteratorRow.argtypes = [ctypes.c_void_p, ctypes.c_ssize_t]
library.PixelGetNextIteratorRow.argtypes = [
ctypes.c_void_p,
ctypes.POINTER(ctypes.c_size_t)
]
library.PixelGetNextIteratorRow.restype = ctypes.POINTER(ctypes.c_void_p)
library.NewPixelWand.argtypes = []
library.NewPixelWand.restype = ctypes.c_void_p
library.DestroyPixelWand.argtypes = [ctypes.c_void_p]
library.DestroyPixelWand.restype = ctypes.c_void_p
library.IsPixelWand.argtypes = [ctypes.c_void_p]
library.PixelGetException.argtypes = [ctypes.c_void_p,
ctypes.POINTER(ctypes.c_int)]
library.PixelGetException.restype = c_magick_char_p
library.PixelClearException.argtypes = [ctypes.c_void_p]
library.IsPixelWandSimilar.argtypes = [ctypes.c_void_p, ctypes.c_void_p,
ctypes.c_double]
library.PixelGetMagickColor.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
library.PixelSetMagickColor.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
library.PixelSetColor.argtypes = [ctypes.c_void_p, ctypes.c_char_p]
library.PixelGetColorAsString.argtypes = [ctypes.c_void_p]
library.PixelGetColorAsString.restype = c_magick_char_p
library.PixelGetColorAsNormalizedString.argtypes = [ctypes.c_void_p]
library.PixelGetColorAsNormalizedString.restype = c_magick_char_p
library.PixelGetRed.argtypes = [ctypes.c_void_p]
library.PixelGetRed.restype = ctypes.c_double
library.PixelGetGreen.argtypes = [ctypes.c_void_p]
library.PixelGetGreen.restype = ctypes.c_double
library.PixelGetBlue.argtypes = [ctypes.c_void_p]
library.PixelGetBlue.restype = ctypes.c_double
library.PixelGetAlpha.argtypes = [ctypes.c_void_p]
library.PixelGetAlpha.restype = ctypes.c_double
library.PixelGetRedQuantum.argtypes = [ctypes.c_void_p]
library.PixelGetRedQuantum.restype = ctypes.c_size_t
library.PixelGetGreenQuantum.argtypes = [ctypes.c_void_p]
library.PixelGetGreenQuantum.restype = ctypes.c_size_t
library.PixelGetBlueQuantum.argtypes = [ctypes.c_void_p]
library.PixelGetBlueQuantum.restype = ctypes.c_size_t
library.PixelGetAlphaQuantum.argtypes = [ctypes.c_void_p]
library.PixelGetAlphaQuantum.restype = ctypes.c_size_t
library.PixelGetColorCount.argtypes = [ctypes.c_void_p]
library.PixelGetColorCount.restype = ctypes.c_size_t
library.MagickGetQuantumRange.argtypes = [ctypes.POINTER(ctypes.c_size_t)]
library.MagickSetIteratorIndex.argtypes = [ctypes.c_void_p,
ctypes.c_ssize_t]
library.MagickGetImageType.argtypes = [ctypes.c_void_p]
library.MagickSetImageType.argtypes = [ctypes.c_void_p, ctypes.c_int]
library.MagickEvaluateImageChannel.argtypes = [ctypes.c_void_p,
ctypes.c_int,
ctypes.c_int,
ctypes.c_double]
library.MagickCompositeImage.argtypes = [ctypes.c_void_p, ctypes.c_void_p,
ctypes.c_int, ctypes.c_ssize_t,
ctypes.c_ssize_t]
library.MagickCompositeImageChannel.argtypes = [
ctypes.c_void_p, ctypes.c_int, ctypes.c_void_p,
ctypes.c_int, ctypes.c_ssize_t, ctypes.c_ssize_t
]
library.MagickGetImageCompressionQuality.argtypes = [ctypes.c_void_p]
library.MagickGetImageCompressionQuality.restype = ctypes.c_ssize_t
library.MagickSetImageCompressionQuality.argtypes = [ctypes.c_void_p,
ctypes.c_ssize_t]
library.MagickStripImage.argtypes = [ctypes.c_void_p]
library.MagickTrimImage.argtypes = [ctypes.c_void_p,
ctypes.c_double]
library.MagickExtentImage.argtypes = [ctypes.c_void_p,
ctypes.c_size_t,
ctypes.c_size_t,
ctypes.c_ssize_t,
ctypes.c_ssize_t]
library.MagickGaussianBlurImage.argtypes = [ctypes.c_void_p,
ctypes.c_double,
ctypes.c_double]
library.MagickUnsharpMaskImage.argtypes = [ctypes.c_void_p,
ctypes.c_double,
ctypes.c_double,
ctypes.c_double,
ctypes.c_double]
library.MagickGetNumberImages.argtypes = [ctypes.c_void_p]
library.MagickGetNumberImages.restype = ctypes.c_size_t
library.MagickGetIteratorIndex.argtypes = [ctypes.c_void_p]
library.MagickGetIteratorIndex.restype = ctypes.c_size_t
library.MagickSetIteratorIndex.argtypes = [ctypes.c_void_p,
ctypes.c_ssize_t]
library.MagickSetFirstIterator.argtypes = [ctypes.c_void_p]
library.MagickSetLastIterator.argtypes = [ctypes.c_void_p]
library.MagickAddImage.argtypes = [ctypes.c_void_p, ctypes.c_void_p]
library.MagickRemoveImage.argtypes = [ctypes.c_void_p]
libmagick.GetNextImageInList.argtypes = [ctypes.c_void_p]
libmagick.GetNextImageInList.restype = ctypes.c_void_p
library.MagickGetImageDelay.argtypes = [ctypes.c_void_p]
library.MagickGetImageDelay.restype = ctypes.c_ssize_t
library.MagickSetImageDelay.argtypes = [ctypes.c_void_p, ctypes.c_ssize_t]
library.NewMagickWandFromImage.argtypes = [ctypes.c_void_p]
library.NewMagickWandFromImage.restype = ctypes.c_void_p
library.GetImageFromMagickWand.argtypes = [ctypes.c_void_p]
library.GetImageFromMagickWand.restype = ctypes.c_void_p
libmagick.CloneImages.argtypes = [ctypes.c_void_p, ctypes.c_char_p,
ctypes.c_void_p]
libmagick.CloneImages.restype = ctypes.c_void_p
libmagick.AcquireExceptionInfo.argtypes = []
libmagick.AcquireExceptionInfo.restype = ctypes.c_void_p
libmagick.DestroyExceptionInfo.argtypes = [ctypes.c_void_p]
libmagick.DestroyExceptionInfo.restype = ctypes.c_void_p
library.MagickGetSize.argtypes = [ctypes.c_void_p,
ctypes.POINTER(ctypes.c_uint),
ctypes.POINTER(ctypes.c_uint)]
library.MagickGetSize.restype = ctypes.c_int
library.MagickSetSize.argtypes = [ctypes.c_void_p,
ctypes.c_uint,
ctypes.c_uint]
library.MagickSetSize.restype = ctypes.c_int
library.MagickGetFont.argtypes = [ctypes.c_void_p]
library.MagickGetFont.restype = ctypes.c_char_p
library.MagickSetFont.argtypes = [ctypes.c_void_p,
ctypes.c_char_p]
library.MagickSetFont.restype = ctypes.c_int
library.MagickGetPointsize.argtypes = [ctypes.c_void_p]
library.MagickGetPointsize.restype = ctypes.c_double
library.MagickSetPointsize.argtypes = [ctypes.c_void_p,
ctypes.c_double]
library.MagickSetPointsize.restype = ctypes.c_int
library.MagickGetGravity.argtypes = [ctypes.c_void_p]
library.MagickGetGravity.restype = ctypes.c_int
library.MagickSetGravity.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.MagickSetGravity.restype = ctypes.c_int
library.MagickSetLastIterator.argtypes = [ctypes.c_void_p]
library.MagickGetBackgroundColor.argtypes = [ctypes.c_void_p]
library.MagickGetBackgroundColor.restype = ctypes.c_void_p
library.MagickSetBackgroundColor.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.MagickSetBackgroundColor.restype = ctypes.c_int
library.MagickGetOption.argtypes = [ctypes.c_void_p,
ctypes.c_char_p]
library.MagickGetOption.restype = ctypes.c_char_p
library.MagickSetOption.argtypes = [ctypes.c_void_p,
ctypes.c_char_p,
ctypes.c_char_p]
library.MagickSetOption.restype = ctypes.c_int
library.MagickGetAntialias.argtypes = [ctypes.c_void_p]
library.MagickGetAntialias.restype = ctypes.c_int
library.MagickSetAntialias.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.MagickSetAntialias.restype = ctypes.c_int
library.MagickGetImageHistogram.argtypes = [
ctypes.c_void_p,
ctypes.POINTER(ctypes.c_size_t)
]
library.MagickGetImageHistogram.restype = ctypes.POINTER(ctypes.c_void_p)
# These functions are const so it's okay for them to be c_char_p
libmagick.GetMagickVersion.argtypes = [ctypes.POINTER(ctypes.c_size_t)]
libmagick.GetMagickVersion.restype = ctypes.c_char_p
libmagick.GetMagickReleaseDate.argtypes = []
libmagick.GetMagickReleaseDate.restype = ctypes.c_char_p
libmagick.GetMagickQuantumDepth.argtypes = [
ctypes.POINTER(ctypes.c_size_t)
]
libmagick.GetMagickQuantumDepth.restype = ctypes.c_char_p
library.NewDrawingWand.restype = ctypes.c_void_p
library.CloneDrawingWand.argtypes = [ctypes.c_void_p]
library.CloneDrawingWand.restype = ctypes.c_void_p
library.DestroyDrawingWand.argtypes = [ctypes.c_void_p]
library.DestroyDrawingWand.restype = ctypes.c_void_p
library.IsDrawingWand.argtypes = [ctypes.c_void_p]
library.IsDrawingWand.restype = ctypes.c_int
library.DrawGetException.argtypes = [ctypes.c_void_p,
ctypes.POINTER(ctypes.c_int)]
library.DrawGetException.restype = ctypes.c_char_p
library.DrawClearException.argtypes = [ctypes.c_void_p]
library.DrawClearException.restype = ctypes.c_int
library.DrawAffine.argtypes = [ctypes.c_void_p, # Drawing wand
ctypes.POINTER(AffineMatrix)] # AffineMatrix
library.DrawComment.argtypes = [ctypes.c_void_p, # wand
ctypes.c_char_p] #comment
library.DrawComposite.argtypes = [ctypes.c_void_p, # DrawingWand wand
ctypes.c_int, # CompositeOperator
ctypes.c_double, # x
ctypes.c_double, # y
ctypes.c_double, # width
ctypes.c_double, # height
ctypes.c_void_p] # MagickWand wand
library.DrawComposite.restype = ctypes.c_uint
library.DrawSetBorderColor.argtypes = [ctypes.c_void_p, # wand
ctypes.c_void_p] # PixelWand color
library.DrawSetClipPath.argtypes = [ctypes.c_void_p, # wand
ctypes.c_char_p] # clip_mask
library.DrawSetClipPath.restype = ctypes.c_int
library.DrawSetClipRule.argtypes = [ctypes.c_void_p, # wand
ctypes.c_uint] # FillRule
library.DrawSetClipUnits.argtypes = [ctypes.c_void_p, # wand
ctypes.c_uint] # ClipPathUnits
library.DrawSetFont.argtypes = [ctypes.c_void_p,
ctypes.c_char_p]
library.DrawSetFontFamily.argtypes = [ctypes.c_void_p, # wand
ctypes.c_char_p] # font_family
library.DrawSetFontFamily.restype = ctypes.c_uint
library.DrawSetFontResolution.argtypes = [ctypes.c_void_p, #wand
ctypes.c_double, # x
ctypes.c_double] # y
library.DrawSetFontResolution.restype = ctypes.c_uint
library.DrawSetFontSize.argtypes = [ctypes.c_void_p,
ctypes.c_double]
library.DrawSetFontStretch.argtypes = [ctypes.c_void_p, # wand
ctypes.c_int] # font_stretch
library.DrawSetFontStyle.argtypes = [ctypes.c_void_p, # wand
ctypes.c_int] # style
library.DrawSetFontWeight.argtypes = [ctypes.c_void_p, # wand
ctypes.c_size_t] # font_weight
library.DrawSetFillColor.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.DrawSetFillOpacity.argtypes = [ctypes.c_void_p,
ctypes.c_double]
library.DrawSetFillPatternURL.argtypes = [ctypes.c_void_p, # wand
ctypes.c_char_p] # fill_url
library.DrawSetFillPatternURL.restype = ctypes.c_uint
library.DrawSetFillRule.argtypes = [ctypes.c_void_p,
ctypes.c_uint]
library.DrawSetOpacity.argtypes = [ctypes.c_void_p, ctypes.c_double]
library.DrawSetStrokeAntialias.argtypes = [ctypes.c_void_p, # wand
ctypes.c_int] # stroke_antialias
library.DrawSetStrokeColor.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.DrawSetStrokeDashArray.argtypes = [ctypes.c_void_p, # wand
ctypes.c_size_t, # number_elements
ctypes.POINTER(ctypes.c_double)]
library.DrawSetStrokeDashOffset.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double] # dash_offset
library.DrawSetStrokeLineCap.argtypes = [ctypes.c_void_p, # wand
ctypes.c_int] # linecap
library.DrawSetStrokeLineJoin.argtypes = [ctypes.c_void_p, # wand
ctypes.c_int] # linejoin
library.DrawSetStrokeMiterLimit.argtypes = [ctypes.c_void_p, # wand
ctypes.c_size_t] # miterlimit
library.DrawSetStrokeOpacity.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double] # stroke_opacity
library.DrawSetStrokePatternURL.argtypes = [ctypes.c_void_p, # wand
ctypes.c_char_p] # fill_url
library.DrawSetStrokePatternURL.restype = ctypes.c_uint
library.DrawSetStrokeWidth.argtypes = [ctypes.c_void_p,
ctypes.c_double]
library.DrawSetTextAlignment.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.DrawSetTextAntialias.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.DrawSetTextDecoration.argtypes = [ctypes.c_void_p,
ctypes.c_int]
try:
library.DrawSetTextDirection.argtypes = [ctypes.c_void_p,
ctypes.c_int]
except AttributeError:
library.DrawSetTextDirection = None
library.DrawSetTextEncoding.argtypes = [ctypes.c_void_p,
ctypes.c_char_p]
try:
library.DrawSetTextInterlineSpacing.argtypes = [ctypes.c_void_p,
ctypes.c_double]
except AttributeError:
library.DrawSetTextInterlineSpacing = None
library.DrawSetTextInterwordSpacing.argtypes = [ctypes.c_void_p,
ctypes.c_double]
library.DrawSetTextKerning.argtypes = [ctypes.c_void_p,
ctypes.c_double]
library.DrawSetTextUnderColor.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.DrawSetVectorGraphics.argtypes = [ctypes.c_void_p,
ctypes.c_char_p]
library.DrawSetVectorGraphics.restype = ctypes.c_int
library.DrawResetVectorGraphics.argtypes = [ctypes.c_void_p]
library.DrawSetViewbox.argtypes = [ctypes.c_void_p, # wand
ctypes.c_ssize_t, # x1
ctypes.c_ssize_t, # y1
ctypes.c_ssize_t, # x2
ctypes.c_ssize_t] # y2
library.DrawGetBorderColor.argtypes = [ctypes.c_void_p, # wand
ctypes.c_void_p] # PixelWand color
library.DrawGetClipPath.argtypes = [ctypes.c_void_p]
library.DrawGetClipPath.restype = c_magick_char_p
library.DrawGetClipRule.argtypes = [ctypes.c_void_p]
library.DrawGetClipRule.restype = ctypes.c_uint
library.DrawGetClipUnits.argtypes = [ctypes.c_void_p]
library.DrawGetClipUnits.restype = ctypes.c_uint
library.DrawGetFillColor.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.DrawGetFillOpacity.argtypes = [ctypes.c_void_p]
library.DrawGetFillOpacity.restype = ctypes.c_double
library.DrawGetFillRule.argtypes = [ctypes.c_void_p]
library.DrawGetFillRule.restype = ctypes.c_uint
library.DrawGetOpacity.argtypes = [ctypes.c_void_p]
library.DrawGetOpacity.restype = ctypes.c_double
library.DrawGetStrokeAntialias.argtypes = [ctypes.c_void_p]
library.DrawGetStrokeAntialias.restype = ctypes.c_int
library.DrawGetStrokeColor.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.DrawGetStrokeDashArray.argtypes = [ctypes.c_void_p,
ctypes.POINTER(ctypes.c_size_t)]
library.DrawGetStrokeDashArray.restype = ctypes.POINTER(ctypes.c_double)
library.DrawGetStrokeDashOffset.argtypes = [ctypes.c_void_p]
library.DrawGetStrokeDashOffset.restype = ctypes.c_double
library.DrawGetStrokeLineCap.argtypes = [ctypes.c_void_p]
library.DrawGetStrokeLineCap.restype = ctypes.c_int
library.DrawGetStrokeLineJoin.argtypes = [ctypes.c_void_p]
library.DrawGetStrokeLineJoin.restype = ctypes.c_int
library.DrawGetStrokeMiterLimit.argtypes = [ctypes.c_void_p]
library.DrawGetStrokeMiterLimit.restype = ctypes.c_size_t
library.DrawGetStrokeOpacity.argtypes = [ctypes.c_void_p]
library.DrawGetStrokeOpacity.restype = ctypes.c_double
library.DrawGetStrokeWidth.argtypes = [ctypes.c_void_p]
library.DrawGetStrokeWidth.restype = ctypes.c_double
library.DrawGetFont.argtypes = [ctypes.c_void_p]
library.DrawGetFont.restype = c_magick_char_p
library.DrawGetFontFamily.argtypes = [ctypes.c_void_p]
library.DrawGetFontFamily.restype = c_magick_char_p
library.DrawGetFontResolution.argtypes = [ctypes.c_void_p, #wand
ctypes.POINTER(ctypes.c_double), # x
ctypes.POINTER(ctypes.c_double)] # y
library.DrawGetFontResolution.restype = ctypes.c_uint
library.DrawGetFontSize.argtypes = [ctypes.c_void_p]
library.DrawGetFontSize.restype = ctypes.c_double
library.DrawGetFontStyle.argtypes = [ctypes.c_void_p]
library.DrawGetFontStyle.restype = ctypes.c_int
library.DrawGetFontWeight.argtypes = [ctypes.c_void_p]
library.DrawGetFontWeight.restype = ctypes.c_size_t
library.DrawGetFontStretch.argtypes = [ctypes.c_void_p]
library.DrawGetFontStretch.restype = ctypes.c_int
library.DrawGetTextAlignment.argtypes = [ctypes.c_void_p]
library.DrawGetTextAlignment.restype = ctypes.c_int
library.DrawGetTextAntialias.argtypes = [ctypes.c_void_p]
library.DrawGetTextAntialias.restype = ctypes.c_int
library.DrawGetTextDecoration.argtypes = [ctypes.c_void_p]
library.DrawGetTextDecoration.restype = ctypes.c_int
try:
library.DrawGetTextDirection.argtypes = [ctypes.c_void_p]
library.DrawGetTextDirection.restype = ctypes.c_int
except AttributeError:
library.DrawGetTextDirection = None
library.DrawGetTextEncoding.argtypes = [ctypes.c_void_p]
library.DrawGetTextEncoding.restype = c_magick_char_p
try:
library.DrawGetTextInterlineSpacing.argtypes = [ctypes.c_void_p]
library.DrawGetTextInterlineSpacing.restype = ctypes.c_double
except AttributeError:
library.DrawGetTextInterlineSpacing = None
library.DrawGetTextInterwordSpacing.argtypes = [ctypes.c_void_p]
library.DrawGetTextInterwordSpacing.restype = ctypes.c_double
library.DrawGetTextKerning.argtypes = [ctypes.c_void_p]
library.DrawGetTextKerning.restype = ctypes.c_double
library.DrawGetTextUnderColor.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.DrawGetVectorGraphics.argtypes = [ctypes.c_void_p]
library.DrawGetVectorGraphics.restype = c_magick_char_p
library.DrawSetGravity.argtypes = [ctypes.c_void_p,
ctypes.c_int]
library.DrawGetGravity.argtypes = [ctypes.c_void_p]
library.DrawGetGravity.restype = ctypes.c_int
library.MagickAnnotateImage.argtypes = [ctypes.c_void_p,
ctypes.c_void_p,
ctypes.c_double,
ctypes.c_double,
ctypes.c_double,
ctypes.c_char_p]
library.MagickAnnotateImage.restype = ctypes.c_int
library.ClearDrawingWand.argtypes = [ctypes.c_void_p]
library.MagickDrawImage.argtypes = [ctypes.c_void_p,
ctypes.c_void_p]
library.MagickDrawImage.restype = ctypes.c_int
library.DrawAnnotation.argtypes = [ctypes.c_void_p,
ctypes.c_double,
ctypes.c_double,
ctypes.POINTER(ctypes.c_ubyte)]
library.DrawArc.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double, # sx
ctypes.c_double, # sy
ctypes.c_double, # ex
ctypes.c_double, # ey
ctypes.c_double, # sd
ctypes.c_double] # ed
library.DrawBezier.argtypes = [ctypes.c_void_p,
ctypes.c_ulong,
ctypes.POINTER(PointInfo)]
library.DrawCircle.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double, # ox
ctypes.c_double, # oy
ctypes.c_double, # px
ctypes.c_double] # py
library.DrawColor.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double, # x
ctypes.c_double, # y
ctypes.c_uint] # PaintMethod
library.DrawEllipse.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double, # ox
ctypes.c_double, # oy
ctypes.c_double, # rx
ctypes.c_double, # ry
ctypes.c_double, # start
ctypes.c_double] # end
library.DrawLine.argtypes = [ctypes.c_void_p,
ctypes.c_double,
ctypes.c_double,
ctypes.c_double,
ctypes.c_double]
library.DrawMatte.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double, # x
ctypes.c_double, # y
ctypes.c_uint] # PaintMethod
library.DrawPathClose.argtypes = [ctypes.c_void_p] # wand
library.DrawPathCurveToAbsolute.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double, # x1
ctypes.c_double, # y1
ctypes.c_double, # x2
ctypes.c_double, # y2
ctypes.c_double, # x
ctypes.c_double] # y
library.DrawPathCurveToRelative.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double, # x1
ctypes.c_double, # y1
ctypes.c_double, # x2
ctypes.c_double, # y2
ctypes.c_double, # x
ctypes.c_double] # y
library.DrawPathCurveToQuadraticBezierAbsolute.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double, # x1
ctypes.c_double, # y1
ctypes.c_double, # x
ctypes.c_double] # y
library.DrawPathCurveToQuadraticBezierRelative.argtypes = [ctypes.c_void_p, # wand
ctypes.c_double, # x1
ctypes.c_double, # y1
ctypes.c_double, # x