def __init__(self, libName, VISSYMDEF):
"""Constructor.
libName is the name of the library that implements the sloargs interface.
The name can either be just the base lib name or an absolute file name.
VISSYMDEF is a ctype Structure object that describes the VISSYMDEF
struct for this particular renderer.
"""
self._VISSYMDEF = VISSYMDEF
libName = rmanlibutil.resolveRManLib(libName)
self.libName = libName
# Load the library...
try:
self._sloargs = self._loadLibrary(libName)
except:
raise ValueError('Failed to load library "%s": %s' %
(libName, sys.exc_info()[1]))
try:
self._declareFunctions(self._sloargs)
except:
raise ValueError(
'Library "%s" does not implement the sloargs interface: %s' %
(libName, sys.exc_info()[1]))
def _loadPtcLib(self, libName):
"""Load a RenderMan library providing the point cloud API.
"""
resolvedLibName = rmanlibutil.resolveRManLib(libName)
ptclib = ctypes.cdll.LoadLibrary(resolvedLibName)
ptclib.PtcPointCloud = ctypes.c_void_p
# Writing point cloud files
ptclib.PtcCreatePointCloudFile.argtypes = [ctypes.c_char_p,
ctypes.c_int,
ctypes.POINTER(ctypes.c_char_p),
ctypes.POINTER(ctypes.c_char_p),
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float)]
ptclib.PtcCreatePointCloudFile.restype = ptclib.PtcPointCloud
ptclib.PtcWriteDataPoint.argtypes = [ptclib.PtcPointCloud,
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float),
ctypes.c_float,
ctypes.POINTER(ctypes.c_float)]
ptclib.PtcWriteDataPoint.restype = ctypes.c_int
ptclib.PtcFinishPointCloudFile.argtypes = [ptclib.PtcPointCloud]
ptclib.PtcFinishPointCloudFile.restype = None
return ptclib
def loadRI(libName):
"""Load a RenderMan library and return a module-like handle to it.
libName is the name of a shared library that implements the RenderMan
interface. The name can either be an absolute file name or just the
name of the library (without suffix or "lib" prefix) in which case
the function tries to find the library file itself.
The return value is the library handle as returned by the ctypes
LoadLibrary() function. This handle has already been prepared so that
it can be used like a module that contains the RenderMan interface.
"""
# Try to figure out the location of the lib if the name is not an absolute path...
libName = rmanlibutil.resolveRManLib(libName)
# Load the library...
ri = cdll.LoadLibrary(libName)
_createRiTypes(ri)
_createRiTokens(ri)
_createRiConstants(ri)
_createRiFunctions(ri)
# Create an alias for every Ri function and RI_ constant that has the prefix removed...
for name in dir(ri):
if name.startswith("Ri"):
setattr(ri, name[2:], getattr(ri, name))
elif name.startswith("RI_"):
setattr(ri, name[3:], getattr(ri, name))
ri.__class__.RiLastError = property(_getLastError, _setLastError)
ri.__class__.LastError = property(_getLastError, _setLastError)
return ri
def _loadPtcLib(self, libName):
"""Load a RenderMan library providing the point cloud API.
"""
resolvedLibName = rmanlibutil.resolveRManLib(libName)
ptclib = ctypes.cdll.LoadLibrary(resolvedLibName)
ptclib.PtcPointCloud = ctypes.c_void_p
# Reading point cloud files
ptclib.PtcOpenPointCloudFile.argtypes = [ctypes.c_char_p,
ctypes.POINTER(ctypes.c_int),
ctypes.POINTER(ctypes.c_char_p),
ctypes.POINTER(ctypes.c_char_p)]
ptclib.PtcOpenPointCloudFile.restype = ptclib.PtcPointCloud
ptclib.PtcGetPointCloudInfo.argtypes = [ptclib.PtcPointCloud, ctypes.c_char_p, ctypes.c_char_p]
ptclib.PtcGetPointCloudInfo.restype = ctypes.c_int
ptclib.PtcReadDataPoint.argtypes = [ptclib.PtcPointCloud,
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float)]
ptclib.PtcReadDataPoint.restype = ctypes.c_int
ptclib.PtcClosePointCloudFile.argtypes = [ptclib.PtcPointCloud]
ptclib.PtcClosePointCloudFile.restype = None
return ptclib
def loadRI(libName):
"""Load a RenderMan library and return a module-like handle to it.
libName is the name of a shared library that implements the RenderMan
interface. The name can either be an absolute file name or just the
name of the library (without suffix or "lib" prefix) in which case
the function tries to find the library file itself.
The return value is the library handle as returned by the ctypes
LoadLibrary() function. This handle has already been prepared so that
it can be used like a module that contains the RenderMan interface.
"""
# Try to figure out the location of the lib if the name is not an absolute path...
libName = rmanlibutil.resolveRManLib(libName)
# Load the library...
ri = cdll.LoadLibrary(libName)
_createRiTypes(ri)
_createRiTokens(ri)
_createRiConstants(ri)
_createRiFunctions(ri)
# Create an alias for every Ri function and RI_ constant that has the prefix removed...
for name in dir(ri):
if name.startswith("Ri"):
setattr(ri, name[2:], getattr(ri, name))
elif name.startswith("RI_"):
setattr(ri, name[3:], getattr(ri, name))
ri.__class__.RiLastError = property(_getLastError, _setLastError)
ri.__class__.LastError = property(_getLastError, _setLastError)
return ri
def _loadPtcLib(self, libName):
"""Load a RenderMan library providing the point cloud API.
"""
resolvedLibName = rmanlibutil.resolveRManLib(libName)
ptclib = ctypes.cdll.LoadLibrary(resolvedLibName)
ptclib.PtcPointCloud = ctypes.c_void_p
# Writing point cloud files
ptclib.PtcCreatePointCloudFile.argtypes = [
ctypes.c_char_p, ctypes.c_int,
ctypes.POINTER(ctypes.c_char_p),
ctypes.POINTER(ctypes.c_char_p),
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float)
]
ptclib.PtcCreatePointCloudFile.restype = ptclib.PtcPointCloud
ptclib.PtcWriteDataPoint.argtypes = [
ptclib.PtcPointCloud,
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float), ctypes.c_float,
ctypes.POINTER(ctypes.c_float)
]
ptclib.PtcWriteDataPoint.restype = ctypes.c_int
ptclib.PtcFinishPointCloudFile.argtypes = [ptclib.PtcPointCloud]
ptclib.PtcFinishPointCloudFile.restype = None
return ptclib
def _loadPtcLib(self, libName):
"""Load a RenderMan library providing the point cloud API.
"""
resolvedLibName = rmanlibutil.resolveRManLib(libName)
ptclib = ctypes.cdll.LoadLibrary(resolvedLibName)
ptclib.PtcPointCloud = ctypes.c_void_p
# Reading point cloud files
ptclib.PtcOpenPointCloudFile.argtypes = [
ctypes.c_char_p,
ctypes.POINTER(ctypes.c_int),
ctypes.POINTER(ctypes.c_char_p),
ctypes.POINTER(ctypes.c_char_p)
]
ptclib.PtcOpenPointCloudFile.restype = ptclib.PtcPointCloud
ptclib.PtcGetPointCloudInfo.argtypes = [
ptclib.PtcPointCloud, ctypes.c_char_p, ctypes.c_char_p
]
ptclib.PtcGetPointCloudInfo.restype = ctypes.c_int
ptclib.PtcReadDataPoint.argtypes = [
ptclib.PtcPointCloud,
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float),
ctypes.POINTER(ctypes.c_float)
]
ptclib.PtcReadDataPoint.restype = ctypes.c_int
ptclib.PtcClosePointCloudFile.argtypes = [ptclib.PtcPointCloud]
ptclib.PtcClosePointCloudFile.restype = None
return ptclib
def __init__(self, libName, VISSYMDEF):
"""Constructor.
libName is the name of the library that implements the sloargs interface.
The name can either be just the base lib name or an absolute file name.
VISSYMDEF is a ctype Structure object that describes the VISSYMDEF
struct for this particular renderer.
"""
self._VISSYMDEF = VISSYMDEF
libName = rmanlibutil.resolveRManLib(libName)
self.libName = libName
# Load the library...
try:
self._sloargs = self._loadLibrary(libName)
except:
raise ValueError('Failed to load library "%s": %s'%(libName, sys.exc_info()[1]))
try:
self._declareFunctions(self._sloargs)
except:
raise ValueError('Library "%s" does not implement the sloargs interface: %s'%(libName, sys.exc_info()[1]))
