77 lines
2.0 KiB
Python
77 lines
2.0 KiB
Python
from ctypes import *
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int_ptr = POINTER(c_int)
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uint_ptr = POINTER(c_uint)
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short_ptr = POINTER(c_short)
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ushort_ptr = POINTER(c_ushort)
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byte_ptr = POINTER(c_byte)
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ubyte_ptr = POINTER(c_ubyte)
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pointer_dict = {}
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def _uintify(x, y, z):
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return (c_uint(x), c_uint(y), c_uint(z))
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def _allocate_array(ptr, t_type, count):
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arr = (t_type * count)()
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p = cast(arr, POINTER(t_type))
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ptr[0] = p
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pointer_dict[id(ptr[0])] = (ptr, arr, p)
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return 1
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def _alloc_int_buffer(ptr, count):
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return _allocate_array(ptr, c_int, count)
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_int_functype = CFUNCTYPE(c_int, POINTER(POINTER(c_int)), c_uint)
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alloc_int_buffer = _int_functype(_alloc_int_buffer)
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def _alloc_uint_buffer(ptr, count):
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return _allocate_array(ptr, c_uint, count)
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_uint_functype = CFUNCTYPE(c_int, POINTER(POINTER(c_uint)), c_uint)
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alloc_uint_buffer = _uint_functype(_alloc_uint_buffer)
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def _alloc_short_buffer(ptr, count):
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return _allocate_array(ptr, c_short, count)
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_short_functype = CFUNCTYPE(c_int, POINTER(POINTER(c_short)), c_uint)
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alloc_short_buffer = _short_functype(_alloc_short_buffer)
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def _alloc_ushort_buffer(ptr, count):
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return _allocate_array(ptr, c_ushort, count)
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_ushort_functype = CFUNCTYPE(c_int, POINTER(POINTER(c_ushort)), c_uint)
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alloc_ushort_buffer = _ushort_functype(_alloc_ushort_buffer)
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def _alloc_byte_buffer(ptr, count):
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return _allocate_array(ptr, c_byte, count)
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_byte_functype = CFUNCTYPE(c_int, POINTER(POINTER(c_byte)), c_uint)
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alloc_byte_buffer = _byte_functype(_alloc_byte_buffer)
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def _alloc_ubyte_buffer(ptr, count):
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return _allocate_array(ptr, c_ubyte, count)
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_ubyte_functype = CFUNCTYPE(c_int, POINTER(POINTER(c_ubyte)), c_uint)
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alloc_ubyte_buffer = _ubyte_functype(_alloc_ubyte_buffer)
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def _alloc_char_buffer(ptr, count):
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c = create_string_buffer(count)
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p = cast(c, POINTER(c_char))
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ptr[0] = p
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pointer_dict[id(ptr[0])] = (ptr, c, p)
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return 1
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_char_functype = CFUNCTYPE(c_int, POINTER(POINTER(c_char)), c_uint)
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alloc_char_buffer = _char_functype(_alloc_char_buffer)
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