warricksothr
/
Perceptual-Image-Hashing
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
Browse Source

FFI Interface methods and tests 

Added FFI interface methods to the library
Added a set of tests for the FFI. currently only the python one is working as intended. the c one isn't complete yet.
Need to add example tests for java, ruby, go?...
Woot! FFI!!!
develop
Drew Short 8 years ago
parent
23f0eec0f4
commit
58579b2dcd
9 changed files with 805 additions and 31 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 4
      .gitignore
  2. 1
      Cargo.toml
  3. 638
      FFI-tests/_ffi_test_py.c
  4. 28
      FFI-tests/ffi_test.c
  5. 34
      FFI-tests/ffi_test.py
  6. 26
      FFI-tests/ffi_test_build.py
  7. 3
      FFI-tests/run_ffi_test_python.sh
  8. 1
      FFI-tests/test_images
  9. 101
      src/lib.rs

4
.gitignore
View File

@ -25,3 +25,7 @@ Cargo.lock
#Rustfmt backup files
*.rs.bk
# FFI test binaries
FFI-tests/*.so
FFI-tests/*.o

1
Cargo.toml
View File

@ -19,3 +19,4 @@ image = "0.6.0"
complex = "0.8.0"
dft = "0.4.1"
sha1 = "0.1.1"
libc = "0.2.4"

638
FFI-tests/_ffi_test_py.c
View File

@ -0,0 +1,638 @@
#define _CFFI_
#include <Python.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <stddef.h>
/* This part is from file 'cffi/parse_c_type.h'. It is copied at the
beginning of C sources generated by CFFI's ffi.set_source(). */
typedef void *_cffi_opcode_t;
#define _CFFI_OP(opcode, arg) (_cffi_opcode_t)(opcode | (((uintptr_t)(arg)) << 8))
#define _CFFI_GETOP(cffi_opcode) ((unsigned char)(uintptr_t)cffi_opcode)
#define _CFFI_GETARG(cffi_opcode) (((intptr_t)cffi_opcode) >> 8)
#define _CFFI_OP_PRIMITIVE 1
#define _CFFI_OP_POINTER 3
#define _CFFI_OP_ARRAY 5
#define _CFFI_OP_OPEN_ARRAY 7
#define _CFFI_OP_STRUCT_UNION 9
#define _CFFI_OP_ENUM 11
#define _CFFI_OP_FUNCTION 13
#define _CFFI_OP_FUNCTION_END 15
#define _CFFI_OP_NOOP 17
#define _CFFI_OP_BITFIELD 19
#define _CFFI_OP_TYPENAME 21
#define _CFFI_OP_CPYTHON_BLTN_V 23 // varargs
#define _CFFI_OP_CPYTHON_BLTN_N 25 // noargs
#define _CFFI_OP_CPYTHON_BLTN_O 27 // O (i.e. a single arg)
#define _CFFI_OP_CONSTANT 29
#define _CFFI_OP_CONSTANT_INT 31
#define _CFFI_OP_GLOBAL_VAR 33
#define _CFFI_OP_DLOPEN_FUNC 35
#define _CFFI_OP_DLOPEN_CONST 37
#define _CFFI_OP_GLOBAL_VAR_F 39
#define _CFFI_OP_EXTERN_PYTHON 41
#define _CFFI_PRIM_VOID 0
#define _CFFI_PRIM_BOOL 1
#define _CFFI_PRIM_CHAR 2
#define _CFFI_PRIM_SCHAR 3
#define _CFFI_PRIM_UCHAR 4
#define _CFFI_PRIM_SHORT 5
#define _CFFI_PRIM_USHORT 6
#define _CFFI_PRIM_INT 7
#define _CFFI_PRIM_UINT 8
#define _CFFI_PRIM_LONG 9
#define _CFFI_PRIM_ULONG 10
#define _CFFI_PRIM_LONGLONG 11
#define _CFFI_PRIM_ULONGLONG 12
#define _CFFI_PRIM_FLOAT 13
#define _CFFI_PRIM_DOUBLE 14
#define _CFFI_PRIM_LONGDOUBLE 15
#define _CFFI_PRIM_WCHAR 16
#define _CFFI_PRIM_INT8 17
#define _CFFI_PRIM_UINT8 18
#define _CFFI_PRIM_INT16 19
#define _CFFI_PRIM_UINT16 20
#define _CFFI_PRIM_INT32 21
#define _CFFI_PRIM_UINT32 22
#define _CFFI_PRIM_INT64 23
#define _CFFI_PRIM_UINT64 24
#define _CFFI_PRIM_INTPTR 25
#define _CFFI_PRIM_UINTPTR 26
#define _CFFI_PRIM_PTRDIFF 27
#define _CFFI_PRIM_SIZE 28
#define _CFFI_PRIM_SSIZE 29
#define _CFFI_PRIM_INT_LEAST8 30
#define _CFFI_PRIM_UINT_LEAST8 31
#define _CFFI_PRIM_INT_LEAST16 32
#define _CFFI_PRIM_UINT_LEAST16 33
#define _CFFI_PRIM_INT_LEAST32 34
#define _CFFI_PRIM_UINT_LEAST32 35
#define _CFFI_PRIM_INT_LEAST64 36
#define _CFFI_PRIM_UINT_LEAST64 37
#define _CFFI_PRIM_INT_FAST8 38
#define _CFFI_PRIM_UINT_FAST8 39
#define _CFFI_PRIM_INT_FAST16 40
#define _CFFI_PRIM_UINT_FAST16 41
#define _CFFI_PRIM_INT_FAST32 42
#define _CFFI_PRIM_UINT_FAST32 43
#define _CFFI_PRIM_INT_FAST64 44
#define _CFFI_PRIM_UINT_FAST64 45
#define _CFFI_PRIM_INTMAX 46
#define _CFFI_PRIM_UINTMAX 47
#define _CFFI__NUM_PRIM 48
#define _CFFI__UNKNOWN_PRIM (-1)
#define _CFFI__UNKNOWN_FLOAT_PRIM (-2)
#define _CFFI__UNKNOWN_LONG_DOUBLE (-3)
#define _CFFI__IO_FILE_STRUCT (-1)
struct _cffi_global_s {
const char *name;
void *address;
_cffi_opcode_t type_op;
void *size_or_direct_fn; // OP_GLOBAL_VAR: size, or 0 if unknown
// OP_CPYTHON_BLTN_*: addr of direct function
};
struct _cffi_getconst_s {
unsigned long long value;
const struct _cffi_type_context_s *ctx;
int gindex;
};
struct _cffi_struct_union_s {
const char *name;
int type_index; // -> _cffi_types, on a OP_STRUCT_UNION
int flags; // _CFFI_F_* flags below
size_t size;
int alignment;
int first_field_index; // -> _cffi_fields array
int num_fields;
};
#define _CFFI_F_UNION 0x01 // is a union, not a struct
#define _CFFI_F_CHECK_FIELDS 0x02 // complain if fields are not in the
// "standard layout" or if some are missing
#define _CFFI_F_PACKED 0x04 // for CHECK_FIELDS, assume a packed struct
#define _CFFI_F_EXTERNAL 0x08 // in some other ffi.include()
#define _CFFI_F_OPAQUE 0x10 // opaque
struct _cffi_field_s {
const char *name;
size_t field_offset;
size_t field_size;
_cffi_opcode_t field_type_op;
};
struct _cffi_enum_s {
const char *name;
int type_index; // -> _cffi_types, on a OP_ENUM
int type_prim; // _CFFI_PRIM_xxx
const char *enumerators; // comma-delimited string
};
struct _cffi_typename_s {
const char *name;
int type_index; /* if opaque, points to a possibly artificial
OP_STRUCT which is itself opaque */
};
struct _cffi_type_context_s {
_cffi_opcode_t *types;
const struct _cffi_global_s *globals;
const struct _cffi_field_s *fields;
const struct _cffi_struct_union_s *struct_unions;
const struct _cffi_enum_s *enums;
const struct _cffi_typename_s *typenames;
int num_globals;
int num_struct_unions;
int num_enums;
int num_typenames;
const char *const *includes;
int num_types;
int flags; /* future extension */
};
struct _cffi_parse_info_s {
const struct _cffi_type_context_s *ctx;
_cffi_opcode_t *output;
unsigned int output_size;
size_t error_location;
const char *error_message;
};
struct _cffi_externpy_s {
const char *name;
size_t size_of_result;
void *reserved1, *reserved2;
};
#ifdef _CFFI_INTERNAL
static int parse_c_type(struct _cffi_parse_info_s *info, const char *input);
static int search_in_globals(const struct _cffi_type_context_s *ctx,
const char *search, size_t search_len);
static int search_in_struct_unions(const struct _cffi_type_context_s *ctx,
const char *search, size_t search_len);
#endif
/* this block of #ifs should be kept exactly identical between
c/_cffi_backend.c, cffi/vengine_cpy.py, cffi/vengine_gen.py
and cffi/_cffi_include.h */
#if defined(_MSC_VER)
# include <malloc.h> /* for alloca() */
# if _MSC_VER < 1600 /* MSVC < 2010 */
typedef __int8 int8_t;
typedef __int16 int16_t;
typedef __int32 int32_t;
typedef __int64 int64_t;
typedef unsigned __int8 uint8_t;
typedef unsigned __int16 uint16_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int64 uint64_t;
typedef __int8 int_least8_t;
typedef __int16 int_least16_t;
typedef __int32 int_least32_t;
typedef __int64 int_least64_t;
typedef unsigned __int8 uint_least8_t;
typedef unsigned __int16 uint_least16_t;
typedef unsigned __int32 uint_least32_t;
typedef unsigned __int64 uint_least64_t;
typedef __int8 int_fast8_t;
typedef __int16 int_fast16_t;
typedef __int32 int_fast32_t;
typedef __int64 int_fast64_t;
typedef unsigned __int8 uint_fast8_t;
typedef unsigned __int16 uint_fast16_t;
typedef unsigned __int32 uint_fast32_t;
typedef unsigned __int64 uint_fast64_t;
typedef __int64 intmax_t;
typedef unsigned __int64 uintmax_t;
# else
# include <stdint.h>
# endif
# if _MSC_VER < 1800 /* MSVC < 2013 */
typedef unsigned char _Bool;
# endif
#else
# include <stdint.h>
# if (defined (__SVR4) && defined (__sun)) || defined(_AIX) || defined(__hpux)
# include <alloca.h>
# endif
#endif
#ifdef __GNUC__
# define _CFFI_UNUSED_FN __attribute__((unused))
#else
# define _CFFI_UNUSED_FN /* nothing */
#endif
/********** CPython-specific section **********/
#ifndef PYPY_VERSION
#if PY_MAJOR_VERSION >= 3
# define PyInt_FromLong PyLong_FromLong
#endif
#define _cffi_from_c_double PyFloat_FromDouble
#define _cffi_from_c_float PyFloat_FromDouble
#define _cffi_from_c_long PyInt_FromLong
#define _cffi_from_c_ulong PyLong_FromUnsignedLong
#define _cffi_from_c_longlong PyLong_FromLongLong
#define _cffi_from_c_ulonglong PyLong_FromUnsignedLongLong
#define _cffi_to_c_double PyFloat_AsDouble
#define _cffi_to_c_float PyFloat_AsDouble
#define _cffi_from_c_int(x, type) \
(((type)-1) > 0 ? /* unsigned */ \
(sizeof(type) < sizeof(long) ? \
PyInt_FromLong((long)x) : \
sizeof(type) == sizeof(long) ? \
PyLong_FromUnsignedLong((unsigned long)x) : \
PyLong_FromUnsignedLongLong((unsigned long long)x)) : \
(sizeof(type) <= sizeof(long) ? \
PyInt_FromLong((long)x) : \
PyLong_FromLongLong((long long)x)))
#define _cffi_to_c_int(o, type) \
((type)( \
sizeof(type) == 1 ? (((type)-1) > 0 ? (type)_cffi_to_c_u8(o) \
: (type)_cffi_to_c_i8(o)) : \
sizeof(type) == 2 ? (((type)-1) > 0 ? (type)_cffi_to_c_u16(o) \
: (type)_cffi_to_c_i16(o)) : \
sizeof(type) == 4 ? (((type)-1) > 0 ? (type)_cffi_to_c_u32(o) \
: (type)_cffi_to_c_i32(o)) : \
sizeof(type) == 8 ? (((type)-1) > 0 ? (type)_cffi_to_c_u64(o) \
: (type)_cffi_to_c_i64(o)) : \
(Py_FatalError("unsupported size for type " #type), (type)0)))
#define _cffi_to_c_i8 \
((int(*)(PyObject *))_cffi_exports[1])
#define _cffi_to_c_u8 \
((int(*)(PyObject *))_cffi_exports[2])
#define _cffi_to_c_i16 \
((int(*)(PyObject *))_cffi_exports[3])
#define _cffi_to_c_u16 \
((int(*)(PyObject *))_cffi_exports[4])
#define _cffi_to_c_i32 \
((int(*)(PyObject *))_cffi_exports[5])
#define _cffi_to_c_u32 \
((unsigned int(*)(PyObject *))_cffi_exports[6])
#define _cffi_to_c_i64 \
((long long(*)(PyObject *))_cffi_exports[7])
#define _cffi_to_c_u64 \
((unsigned long long(*)(PyObject *))_cffi_exports[8])
#define _cffi_to_c_char \
((int(*)(PyObject *))_cffi_exports[9])
#define _cffi_from_c_pointer \
((PyObject *(*)(char *, CTypeDescrObject *))_cffi_exports[10])
#define _cffi_to_c_pointer \
((char *(*)(PyObject *, CTypeDescrObject *))_cffi_exports[11])
#define _cffi_get_struct_layout \
not used any more
#define _cffi_restore_errno \
((void(*)(void))_cffi_exports[13])
#define _cffi_save_errno \
((void(*)(void))_cffi_exports[14])
#define _cffi_from_c_char \
((PyObject *(*)(char))_cffi_exports[15])
#define _cffi_from_c_deref \
((PyObject *(*)(char *, CTypeDescrObject *))_cffi_exports[16])
#define _cffi_to_c \
((int(*)(char *, CTypeDescrObject *, PyObject *))_cffi_exports[17])
#define _cffi_from_c_struct \
((PyObject *(*)(char *, CTypeDescrObject *))_cffi_exports[18])
#define _cffi_to_c_wchar_t \
((wchar_t(*)(PyObject *))_cffi_exports[19])
#define _cffi_from_c_wchar_t \
((PyObject *(*)(wchar_t))_cffi_exports[20])
#define _cffi_to_c_long_double \
((long double(*)(PyObject *))_cffi_exports[21])
#define _cffi_to_c__Bool \
((_Bool(*)(PyObject *))_cffi_exports[22])
#define _cffi_prepare_pointer_call_argument \
((Py_ssize_t(*)(CTypeDescrObject *, PyObject *, char **))_cffi_exports[23])
#define _cffi_convert_array_from_object \
((int(*)(char *, CTypeDescrObject *, PyObject *))_cffi_exports[24])
#define _cffi_call_python \
((void(*)(struct _cffi_externpy_s *, char *))_cffi_exports[25])
#define _CFFI_NUM_EXPORTS 26
typedef struct _ctypedescr CTypeDescrObject;
static void *_cffi_exports[_CFFI_NUM_EXPORTS];
#define _cffi_type(index) ( \
assert((((uintptr_t)_cffi_types[index]) & 1) == 0), \
(CTypeDescrObject *)_cffi_types[index])
static PyObject *_cffi_init(const char *module_name, Py_ssize_t version,
const struct _cffi_type_context_s *ctx)
{
PyObject *module, *o_arg, *new_module;
void *raw[] = {
(void *)module_name,
(void *)version,
(void *)_cffi_exports,
(void *)ctx,
};
module = PyImport_ImportModule("_cffi_backend");
if (module == NULL)
goto failure;
o_arg = PyLong_FromVoidPtr((void *)raw);
if (o_arg == NULL)
goto failure;
new_module = PyObject_CallMethod(
module, (char *)"_init_cffi_1_0_external_module", (char *)"O", o_arg);
Py_DECREF(o_arg);
Py_DECREF(module);
return new_module;
failure:
Py_XDECREF(module);
return NULL;
}
_CFFI_UNUSED_FN
static PyObject **_cffi_unpack_args(PyObject *args_tuple, Py_ssize_t expected,
const char *fnname)
{
if (PyTuple_GET_SIZE(args_tuple) != expected) {
PyErr_Format(PyExc_TypeError,
"%.150s() takes exactly %zd arguments (%zd given)",
fnname, expected, PyTuple_GET_SIZE(args_tuple));
return NULL;
}
return &PyTuple_GET_ITEM(args_tuple, 0); /* pointer to the first item,
the others follow */
}
/********** end CPython-specific section **********/
#else
_CFFI_UNUSED_FN
static void (*_cffi_call_python)(struct _cffi_externpy_s *, char *);
#endif
#define _cffi_array_len(array) (sizeof(array) / sizeof((array)[0]))
#define _cffi_prim_int(size, sign) \
((size) == 1 ? ((sign) ? _CFFI_PRIM_INT8 : _CFFI_PRIM_UINT8) : \
(size) == 2 ? ((sign) ? _CFFI_PRIM_INT16 : _CFFI_PRIM_UINT16) : \
(size) == 4 ? ((sign) ? _CFFI_PRIM_INT32 : _CFFI_PRIM_UINT32) : \
(size) == 8 ? ((sign) ? _CFFI_PRIM_INT64 : _CFFI_PRIM_UINT64) : \
_CFFI__UNKNOWN_PRIM)
#define _cffi_prim_float(size) \
((size) == sizeof(float) ? _CFFI_PRIM_FLOAT : \
(size) == sizeof(double) ? _CFFI_PRIM_DOUBLE : \
(size) == sizeof(long double) ? _CFFI__UNKNOWN_LONG_DOUBLE : \
_CFFI__UNKNOWN_FLOAT_PRIM)
#define _cffi_check_int(got, got_nonpos, expected) \
((got_nonpos) == (expected <= 0) && \
(got) == (unsigned long long)expected)
#ifdef __cplusplus
}
#endif
/************************************************************/
#include <dlfcn.h>
/************************************************************/
static void *_cffi_types[] = {
/* 0 */ _CFFI_OP(_CFFI_OP_FUNCTION, 6), // uint64_t()(char const *)
/* 1 */ _CFFI_OP(_CFFI_OP_POINTER, 5), // char const *
/* 2 */ _CFFI_OP(_CFFI_OP_FUNCTION_END, 0),
/* 3 */ _CFFI_OP(_CFFI_OP_FUNCTION, 7), // void()(void)
/* 4 */ _CFFI_OP(_CFFI_OP_FUNCTION_END, 0),
/* 5 */ _CFFI_OP(_CFFI_OP_PRIMITIVE, 2), // char
/* 6 */ _CFFI_OP(_CFFI_OP_PRIMITIVE, 24), // uint64_t
/* 7 */ _CFFI_OP(_CFFI_OP_PRIMITIVE, 0), // void
};
static uint64_t _cffi_d_ext_get_ahash(char const * x0)
{
return ext_get_ahash(x0);
}
#ifndef PYPY_VERSION
static PyObject *
_cffi_f_ext_get_ahash(PyObject *self, PyObject *arg0)
{
char const * x0;
Py_ssize_t datasize;
uint64_t result;
datasize = _cffi_prepare_pointer_call_argument(
_cffi_type(1), arg0, (char **)&x0);
if (datasize != 0) {
if (datasize < 0)
return NULL;
x0 = (char const *)alloca((size_t)datasize);
memset((void *)x0, 0, (size_t)datasize);
if (_cffi_convert_array_from_object((char *)x0, _cffi_type(1), arg0) < 0)
return NULL;
}
Py_BEGIN_ALLOW_THREADS
_cffi_restore_errno();
{ result = ext_get_ahash(x0); }
_cffi_save_errno();
Py_END_ALLOW_THREADS
(void)self; /* unused */
return _cffi_from_c_int(result, uint64_t);
}
#else
# define _cffi_f_ext_get_ahash _cffi_d_ext_get_ahash
#endif
static uint64_t _cffi_d_ext_get_dhash(char const * x0)
{
return ext_get_dhash(x0);
}
#ifndef PYPY_VERSION
static PyObject *
_cffi_f_ext_get_dhash(PyObject *self, PyObject *arg0)
{
char const * x0;
Py_ssize_t datasize;
uint64_t result;
datasize = _cffi_prepare_pointer_call_argument(
_cffi_type(1), arg0, (char **)&x0);
if (datasize != 0) {
if (datasize < 0)
return NULL;
x0 = (char const *)alloca((size_t)datasize);
memset((void *)x0, 0, (size_t)datasize);
if (_cffi_convert_array_from_object((char *)x0, _cffi_type(1), arg0) < 0)
return NULL;
}
Py_BEGIN_ALLOW_THREADS
_cffi_restore_errno();
{ result = ext_get_dhash(x0); }
_cffi_save_errno();
Py_END_ALLOW_THREADS
(void)self; /* unused */
return _cffi_from_c_int(result, uint64_t);
}
#else
# define _cffi_f_ext_get_dhash _cffi_d_ext_get_dhash
#endif
static uint64_t _cffi_d_ext_get_phash(char const * x0)
{
return ext_get_phash(x0);
}
#ifndef PYPY_VERSION
static PyObject *
_cffi_f_ext_get_phash(PyObject *self, PyObject *arg0)
{
char const * x0;
Py_ssize_t datasize;
uint64_t result;
datasize = _cffi_prepare_pointer_call_argument(
_cffi_type(1), arg0, (char **)&x0);
if (datasize != 0) {
if (datasize < 0)
return NULL;
x0 = (char const *)alloca((size_t)datasize);
memset((void *)x0, 0, (size_t)datasize);
if (_cffi_convert_array_from_object((char *)x0, _cffi_type(1), arg0) < 0)
return NULL;
}
Py_BEGIN_ALLOW_THREADS
_cffi_restore_errno();
{ result = ext_get_phash(x0); }
_cffi_save_errno();
Py_END_ALLOW_THREADS
(void)self; /* unused */
return _cffi_from_c_int(result, uint64_t);
}
#else
# define _cffi_f_ext_get_phash _cffi_d_ext_get_phash
#endif
static void _cffi_d_init(void)
{
init();
}
#ifndef PYPY_VERSION
static PyObject *
_cffi_f_init(PyObject *self, PyObject *noarg)
{
Py_BEGIN_ALLOW_THREADS
_cffi_restore_errno();
{ init(); }
_cffi_save_errno();
Py_END_ALLOW_THREADS
(void)self; /* unused */
(void)noarg; /* unused */
Py_INCREF(Py_None);
return Py_None;
}
#else
# define _cffi_f_init _cffi_d_init
#endif
static void _cffi_d_teardown(void)
{
teardown();
}
#ifndef PYPY_VERSION
static PyObject *
_cffi_f_teardown(PyObject *self, PyObject *noarg)
{
Py_BEGIN_ALLOW_THREADS
_cffi_restore_errno();
{ teardown(); }
_cffi_save_errno();
Py_END_ALLOW_THREADS
(void)self; /* unused */
(void)noarg; /* unused */
Py_INCREF(Py_None);
return Py_None;
}
#else
# define _cffi_f_teardown _cffi_d_teardown
#endif
static const struct _cffi_global_s _cffi_globals[] = {
{ "ext_get_ahash", (void *)_cffi_f_ext_get_ahash, _CFFI_OP(_CFFI_OP_CPYTHON_BLTN_O, 0), (void *)_cffi_d_ext_get_ahash },
{ "ext_get_dhash", (void *)_cffi_f_ext_get_dhash, _CFFI_OP(_CFFI_OP_CPYTHON_BLTN_O, 0), (void *)_cffi_d_ext_get_dhash },
{ "ext_get_phash", (void *)_cffi_f_ext_get_phash, _CFFI_OP(_CFFI_OP_CPYTHON_BLTN_O, 0), (void *)_cffi_d_ext_get_phash },
{ "init", (void *)_cffi_f_init, _CFFI_OP(_CFFI_OP_CPYTHON_BLTN_N, 3), (void *)_cffi_d_init },
{ "teardown", (void *)_cffi_f_teardown, _CFFI_OP(_CFFI_OP_CPYTHON_BLTN_N, 3), (void *)_cffi_d_teardown },
};
static const struct _cffi_type_context_s _cffi_type_context = {
_cffi_types,
_cffi_globals,
NULL, /* no fields */
NULL, /* no struct_unions */
NULL, /* no enums */
NULL, /* no typenames */
5, /* num_globals */
0, /* num_struct_unions */
0, /* num_enums */
0, /* num_typenames */
NULL, /* no includes */
8, /* num_types */
0, /* flags */
};
#ifdef PYPY_VERSION
PyMODINIT_FUNC
_cffi_pypyinit__ffi_test_py(const void *p[])
{
p[0] = (const void *)0x2601;
p[1] = &_cffi_type_context;
}
# ifdef _MSC_VER
PyMODINIT_FUNC
# if PY_MAJOR_VERSION >= 3
PyInit__ffi_test_py(void) { return NULL; }
# else
init_ffi_test_py(void) { }
# endif
# endif
#elif PY_MAJOR_VERSION >= 3
PyMODINIT_FUNC
PyInit__ffi_test_py(void)
{
return _cffi_init("_ffi_test_py", 0x2601, &_cffi_type_context);
}
#else
PyMODINIT_FUNC
init_ffi_test_py(void)
{
_cffi_init("_ffi_test_py", 0x2601, &_cffi_type_context);
}
#endif

28
FFI-tests/ffi_test.c
View File

@ -0,0 +1,28 @@
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <dlfcn.h>
int main() {
uint64_t (*ext_get_ahash)(const char *);
uint64_t (*ext_get_dhash)(const char *);
uint64_t (*ext_get_phash)(const char *);
imglib = dlopen("./libpihash.so", RTLD_LAZY);
if ( imglib != NULL ) {
}
printf("Large_Test_AHash: ", largeA);
printf("Large_Test_DHash: ", largeD);
printf("Large_Test_PHash: ", largeP);
printf("Medium_Test_AHash: ", mediumA);
printf("Medium_Test_DHash: ", mediumD);
printf("Medium_Test_PHash: ", mediumP);
printf("Small_Test_AHash: ", smallA);
printf("Small_Test_DHash: ", smallD);
printf("Small_Test_PHash: ", smallP);
}

34
FFI-tests/ffi_test.py
View File

@ -0,0 +1,34 @@
#!/usr/bin/env python3
from _ffi_test_py import ffi, lib
large_image_path = "test_images/sample_01_large.jpg".encode(encoding="utf-8")
medium_image_path = "test_images/sample_01_medium.jpg".encode(encoding="utf-8")
small_image_path = "test_images/sample_01_small.jpg".encode(encoding="utf-8")
print("starting test")
#initialize the library
lib.init()
# Print the path and the bytes as hex for debugging
#print(large_image_path)
#print('\\x'+'\\x'.join('{:02x}'.format(x) for x in large_image_path))
print("Get hashes for {}", large_image_path)
print("AHash: {}",lib.ext_get_ahash(large_image_path))
print("DHash: {}",lib.ext_get_dhash(large_image_path))
print("PHash: {}",lib.ext_get_phash(large_image_path))
print("Get hashes for {}", medium_image_path)
print("AHash: {}",lib.ext_get_ahash(medium_image_path))
print("DHash: {}",lib.ext_get_dhash(medium_image_path))
print("PHash: {}",lib.ext_get_phash(medium_image_path))
print("Get hashes for {}", small_image_path)
print("AHash: {}",lib.ext_get_ahash(small_image_path))
print("DHash: {}",lib.ext_get_dhash(small_image_path))
print("PHash: {}",lib.ext_get_phash(small_image_path))
# Do cleanup
#lib.teardown()

26
FFI-tests/ffi_test_build.py
View File

@ -0,0 +1,26 @@
#!/usr/bin/env python3
# A simple test script to confirm the C FFI for the rust library is working
from cffi import FFI
ffi = FFI()
ffi.set_source("_ffi_test_py",
"""
#include <dlfcn.h>
""",
libraries=["pihash"],
library_dirs=["."]
)
ffi.cdef("""
void init();
void teardown();
uint64_t ext_get_ahash(const char *);
uint64_t ext_get_dhash(const char *);
uint64_t ext_get_phash(const char *);
""")
if __name__ == "__main__":
ffi.compile()

3
FFI-tests/run_ffi_test_python.sh
View File

@ -0,0 +1,3 @@
#!/usr/bin/env sh
LD_LIBRARY_PATH="$PWD/:$LD_LIBRARY_PATH" python3 ./ffi_test.py

1
FFI-tests/test_images
View File

@ -0,0 +1 @@
../test_images

101
src/lib.rs
View File

@ -6,6 +6,8 @@
mod hash;
mod cache;
extern crate libc;
use std::path::Path;
use hash::PerceptualHash;
use std::ffi::CStr;
@ -16,7 +18,7 @@ use std::ffi::CStr;
* Not performing this step may cause parts to fail.
*/
#[no_mangle]
pub extern fn init() {
pub extern "C" fn init() {
match cache::prep_cache() {
Ok(_) => {}
Err(e) => println!("Error: {}", e),
@ -27,7 +29,7 @@ pub extern fn init() {
* Teardown for the library
*/
#[no_mangle]
pub extern fn teardown() {
pub extern "C" fn teardown() {
match cache::clear_cache() {
Ok(_) => {}
Err(e) => println!("Error: {}", e),
@ -38,44 +40,15 @@ pub fn get_phashes(path: &Path) -> hash::PerceptualHashes {
hash::get_perceptual_hashes(path, &hash::Precision::Medium)
}
#[no_mangle]
pub extern fn ext_get_ahash(path_str: &CStr) -> u64 {
let image_path = match path_str.to_str() {
Ok(result) => result,
Err(e) => "",
};
let path = Path::new(&image_path);
get_ahash(&path)
}
pub fn get_ahash(path: &Path) -> u64 {
hash::AHash::new(&path, &hash::Precision::Medium).get_hash()
}
#[no_mangle]
pub extern fn ext_get_dhash(path_str: &CStr) -> u64 {
let image_path = match path_str.to_str() {
Ok(result) => result,
Err(e) => "",
};
let path = Path::new(&image_path);
get_dhash(&path)
}
pub fn get_dhash(path: &Path) -> u64 {
hash::DHash::new(&path, &hash::Precision::Medium).get_hash()
}
#[no_mangle]
pub extern fn ext_get_phash(path_str: &CStr) -> u64 {
let image_path = match path_str.to_str() {
Ok(result) => result,
Err(e) => "",
};
let path = Path::new(&image_path);
get_phash(&path)
}
pub fn get_phash(path: &Path) -> u64 {
hash::PHash::new(&path, &hash::Precision::Medium).get_hash()
}
@ -84,6 +57,72 @@ pub fn get_hamming_distance(hash1: u64, hash2: u64) -> u64 {
hash::calculate_hamming_distance(hash1, hash2)
}
// External proxies for the get_*hash methods
#[no_mangle]
pub extern "C" fn ext_get_ahash(path_char: *const libc::c_char) -> u64 {
unsafe {
let path_str = CStr::from_ptr(path_char);
let image_path = match path_str.to_str() {
Ok(result) => result,
Err(e) => {
println!("Error: {}. Unable to parse '{}'",
e,
to_hex_string(path_str.to_bytes()));
panic!("Unable to parse path")
}
};
let path = Path::new(&image_path);
get_ahash(&path)
}
}
#[no_mangle]
pub extern "C" fn ext_get_dhash(path_char: *const libc::c_char) -> u64 {
unsafe {
let path_str = CStr::from_ptr(path_char);
let image_path = match path_str.to_str() {
Ok(result) => result,
Err(e) => {
println!("Error: {}. Unable to parse '{}'",
e,
to_hex_string(path_str.to_bytes()));
panic!("Unable to parse path")
}
};
let path = Path::new(&image_path);
get_dhash(&path)
}
}
#[no_mangle]
pub extern "C" fn ext_get_phash(path_char: *const libc::c_char) -> u64 {
unsafe {
let path_str = CStr::from_ptr(path_char);
let image_path = match path_str.to_str() {
Ok(result) => result,
Err(e) => {
println!("Error: {}. Unable to parse '{}'",
e,
to_hex_string(path_str.to_bytes()));
panic!("Unable to parse path")
}
};
let path = Path::new(&image_path);
get_phash(&path)
}
}
fn to_hex_string(bytes: &[u8]) -> String {
println!("length: {}", bytes.len());
let mut strs: Vec<String> = Vec::new();
for byte in bytes {
// println!("{:02x}", byte);
strs.push(format!("{:02x}", byte));
}
strs.join("\\x")
}
// Module for the tests
//
#[cfg(test)]

Write Preview
Loading…
Cancel
Save