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/* Implementing buffer protocol typemaps */
/* %pybuffer_mutable_binary(TYPEMAP, SIZE)
*
* Macro for functions accept mutable buffer pointer with a size.
* This can be used for both input and output. For example:
*
* %pybuffer_mutable_binary(char *buff, int size);
* void foo(char *buff, int size) {
* for(int i=0; i<size; ++i)
* buff[i]++;
* }
*/
/* Note that in Py_LIMITED_API case we have no choice, but to use deprecated
* functions, as they provides the only way to access buffer data with limited
* API, which doesn't include Py_buffer definition. We also disable the
* warnings about doing this because they're not useful in our case.
*/
%define %pybuffer_mutable_binary(TYPEMAP, SIZE)
%typemap(in) (TYPEMAP, SIZE) {
int res; Py_ssize_t size = 0; void *buf = 0;
%#ifndef Py_LIMITED_API
Py_buffer view;
res = PyObject_GetBuffer($input, &view, PyBUF_WRITABLE);
%#else
%#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
%#pragma GCC diagnostic push
%#pragma GCC diagnostic ignored "-Wdeprecated"
%#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
%#elif defined(_MSC_VER)
%#pragma warning(push)
%#pragma warning(disable: 4996)
%#endif
res = PyObject_AsWriteBuffer($input, &buf, &size);
%#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
%#pragma GCC diagnostic pop
%#elif defined(_MSC_VER)
%#pragma warning(pop)
%#endif
%#endif
if (res < 0) {
PyErr_Clear();
%argument_fail(res, "(TYPEMAP, SIZE)", $symname, $argnum);
}
%#ifndef Py_LIMITED_API
size = view.len;
buf = view.buf;
PyBuffer_Release(&view);
%#endif
$1 = ($1_ltype) buf;
$2 = ($2_ltype) (size/sizeof($*1_type));
}
%enddef
/* %pybuffer_mutable_string(TYPEMAP)
*
* Macro for functions accept mutable zero terminated string pointer.
* This can be used for both input and output. For example:
*
* %pybuffer_mutable_string(char *str);
* void foo(char *str) {
* while(*str) {
* *str = toupper(*str);
* str++;
* }
*/
%define %pybuffer_mutable_string(TYPEMAP)
%typemap(in) (TYPEMAP) {
int res; void *buf = 0;
%#ifndef Py_LIMITED_API
Py_buffer view;
res = PyObject_GetBuffer($input, &view, PyBUF_WRITABLE);
%#else
%#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
%#pragma GCC diagnostic push
%#pragma GCC diagnostic ignored "-Wdeprecated"
%#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
%#elif defined(_MSC_VER)
%#pragma warning(push)
%#pragma warning(disable: 4996)
%#endif
Py_ssize_t size;
res = PyObject_AsWriteBuffer($input, &buf, &size);
%#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
%#pragma GCC diagnostic pop
%#elif defined(_MSC_VER)
%#pragma warning(pop)
%#endif
%#endif
if (res < 0) {
PyErr_Clear();
%argument_fail(res, "(TYPEMAP)", $symname, $argnum);
}
%#ifndef Py_LIMITED_API
buf = view.buf;
PyBuffer_Release(&view);
%#endif
$1 = ($1_ltype) buf;
}
%enddef
/* pybuffer_binary(TYPEMAP, SIZE)
*
* Macro for functions accept read only buffer pointer with a size.
* This must be used for input. For example:
*
* %pybuffer_binary(char *buff, int size);
* int foo(char *buff, int size) {
* int count = 0;
* for(int i=0; i<size; ++i)
* if (0==buff[i]) count++;
* return count;
* }
*/
%define %pybuffer_binary(TYPEMAP, SIZE)
%typemap(in) (TYPEMAP, SIZE) {
int res; Py_ssize_t size = 0; const void *buf = 0;
%#ifndef Py_LIMITED_API
Py_buffer view;
res = PyObject_GetBuffer($input, &view, PyBUF_CONTIG_RO);
%#else
%#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
%#pragma GCC diagnostic push
%#pragma GCC diagnostic ignored "-Wdeprecated"
%#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
%#elif defined(_MSC_VER)
%#pragma warning(push)
%#pragma warning(disable: 4996)
%#endif
res = PyObject_AsReadBuffer($input, &buf, &size);
%#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
%#pragma GCC diagnostic pop
%#elif defined(_MSC_VER)
%#pragma warning(pop)
%#endif
%#endif
if (res < 0) {
PyErr_Clear();
%argument_fail(res, "(TYPEMAP, SIZE)", $symname, $argnum);
}
%#ifndef Py_LIMITED_API
size = view.len;
buf = view.buf;
PyBuffer_Release(&view);
%#endif
$1 = ($1_ltype) buf;
$2 = ($2_ltype) (size / sizeof($*1_type));
}
%enddef
/* %pybuffer_string(TYPEMAP)
*
* Macro for functions accept read only zero terminated string pointer.
* This can be used for input. For example:
*
* %pybuffer_string(char *str);
* int foo(char *str) {
* int count = 0;
* while(*str) {
* if (isalnum(*str))
* count++;
* str++;
* }
*/
%define %pybuffer_string(TYPEMAP)
%typemap(in) (TYPEMAP) {
int res; const void *buf = 0;
%#ifndef Py_LIMITED_API
Py_buffer view;
res = PyObject_GetBuffer($input, &view, PyBUF_CONTIG_RO);
%#else
%#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
%#pragma GCC diagnostic push
%#pragma GCC diagnostic ignored "-Wdeprecated"
%#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
%#elif defined(_MSC_VER)
%#pragma warning(push)
%#pragma warning(disable: 4996)
%#endif
Py_ssize_t size;
res = PyObject_AsReadBuffer($input, &buf, &size);
%#if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
%#pragma GCC diagnostic pop
%#elif defined(_MSC_VER)
%#pragma warning(pop)
%#endif
%#endif
if (res < 0) {
PyErr_Clear();
%argument_fail(res, "(TYPEMAP)", $symname, $argnum);
}
%#ifndef Py_LIMITED_API
buf = view.buf;
PyBuffer_Release(&view);
%#endif
$1 = ($1_ltype) buf;
}
%enddef
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