55a3d845c9
Totally rewrote pyassimp, removing all pyassimp classes, instead using python's dynamic nature to expand the ctypes structures to include safe array access and python style tuple access. Updated helper.py and sample.py. git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@406 67173fc5-114c-0410-ac8e-9d2fd5bffc1f
68 lines
1.7 KiB
Python
68 lines
1.7 KiB
Python
#-*- coding: UTF-8 -*-
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"""
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Some fancy helper functions.
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"""
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import os
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import ctypes
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import structs
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import operator
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from errors import AssimpError
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from ctypes import POINTER
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def vec2tuple(x):
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"""
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Converts a VECTOR3D to a Tuple
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"""
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return (x.x, x.y, x.z)
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def search_library():
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"""
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Loads the assimp-Library.
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result (load-function, release-function)
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exception AssimpError if no library is found
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"""
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#this path
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folder = os.path.dirname(__file__)
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ctypes.windll.kernel32.SetErrorMode(0x8007)
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candidates = []
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#test every file
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for filename in os.listdir(folder):
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library = os.path.join(folder, filename)
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try:
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dll = ctypes.cdll.LoadLibrary(library)
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except:
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#OK, this except is evil. But different OSs will throw different
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#errors. So just ignore errors.
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pass
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else:
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#get the functions
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try:
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load = dll.aiImportFile
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release = dll.aiReleaseImport
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except AttributeError:
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#OK, this is a library, but it has not the functions we need
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pass
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else:
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#Library found!
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load.restype = POINTER(structs.Scene)
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candidates.append((library, load, release, dll))
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if not candidates:
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#no library found
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raise AssimpError, "assimp library not found"
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else:
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#get the newest library
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candidates = map(lambda x: (os.lstat(x[0])[-2], x), candidates)
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return max(candidates, key=operator.itemgetter(0))[1][1:]
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