/usr/lib/pypy/dist-packages/libraw/callbacks.py is in pypy-rawkit 0.6.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | """:mod:`libraw.callbacks` --- LibRaw callback definitions
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Warning:
You will need to keep a reference to your callback functions for as long as
you want to call them from C code, otherwise they may be garbage collected
and lead to a segmentation fault.
"""
from ctypes import * # noqa
memory_callback = CFUNCTYPE(c_void_p, c_char_p, c_char_p)
"""
Creates a callback for use when there are memory errors in LibRaw.
.. sourcecode:: python
def memory_cb(data, file, where):
pass
cb = memory_callback(memory_cb)
libraw.libraw_set_memerror_handler(libraw_data, cb, data)
Your callback function should map to the LibRaw C callback definition below:
.. sourcecode:: c
typedef void (*memory_callback) (
void *data, const char *file, const char *where
);
Args:
callback (function): The Python function to convert to a C callback.
Returns:
_ctypes.PyCFuncPtrType: A C callback.
"""
data_callback = CFUNCTYPE(c_void_p, c_char_p, c_int)
"""
A callback for use when there are data errors in LibRaw.
.. sourcecode:: python
def data_cb(data, file, offset):
pass
cb = data_callback(data_cb)
libraw.libraw_set_dataerror_handler(libraw_data, cb, data)
Your callback function should map to the LibRaw C callback definition below:
.. sourcecode:: c
typedef void (*data_callback) (
void *data, const char *file, const int offset
);
Args:
callback (function): The Python function to convert to a C callback.
Returns:
_ctypes.PyCFuncPtrType: A C callback.
"""
progress_callback = CFUNCTYPE(c_void_p, c_int, c_int, c_int)
"""
A callback that will be called to alert you to the stages of image processing.
.. sourcecode:: python
def progress_cb(data, stage, iteration, expected):
pass
cb = progress_callback(progress_cb)
libraw.libraw_set_progress_handler(libraw_data, cb, data)
Your callback function should map to the LibRaw C callback definition below:
.. sourcecode:: c
typedef void (*progress_callback) (
void *data, enum LibRaw_progress stage, int iterationa, int expected
);
Args:
callback (function): The Python function to convert to a C callback.
Returns:
_ctypes.PyCFuncPtrType: A C callback.
"""
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