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Commit8da08a7

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committed
Use pybind11 in ttconv module
1 parent238e275 commit8da08a7

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2 files changed

+37
-139
lines changed

2 files changed

+37
-139
lines changed

‎setupext.py

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -468,15 +468,15 @@ def get_extensions(self):
468468
cxx_std=11)
469469
yieldext
470470
# ttconv
471-
ext=Extension(
471+
ext=Pybind11Extension(
472472
"matplotlib._ttconv", [
473473
"src/_ttconv.cpp",
474474
"extern/ttconv/pprdrv_tt.cpp",
475475
"extern/ttconv/pprdrv_tt2.cpp",
476476
"extern/ttconv/ttutil.cpp",
477477
],
478-
include_dirs=["extern"])
479-
add_numpy_flags(ext)
478+
include_dirs=["extern"],
479+
cxx_std=11)
480480
yieldext
481481

482482

‎src/_ttconv.cpp

Lines changed: 34 additions & 136 deletions
Original file line numberDiff line numberDiff line change
@@ -5,157 +5,79 @@
55
66
Python wrapper for TrueType conversion library in ../ttconv.
77
*/
8-
#definePY_SSIZE_T_CLEAN
98
#include"mplutils.h"
109

11-
#include<Python.h>
10+
#include<pybind11/pybind11.h>
1211
#include"ttconv/pprdrv.h"
13-
#include"py_exceptions.h"
1412
#include<vector>
15-
#include<cassert>
1613

1714
/**
1815
* An implementation of TTStreamWriter that writes to a Python
1916
* file-like object.
2017
*/
2118
classPythonFileWriter :publicTTStreamWriter
2219
{
23-
PyObject *_write_method;
20+
pybind11::function_write_method;
2421

2522
public:
26-
PythonFileWriter()
27-
{
28-
_write_method =NULL;
29-
}
30-
31-
~PythonFileWriter()
32-
{
33-
Py_XDECREF(_write_method);
34-
}
35-
36-
voidset(PyObject *write_method)
37-
{
38-
Py_XDECREF(_write_method);
39-
_write_method = write_method;
40-
Py_XINCREF(_write_method);
41-
}
23+
PythonFileWriter(pybind11::object& file_object)
24+
: _write_method(file_object.attr("write")) {}
4225

4326
virtualvoidwrite(constchar *a)
4427
{
45-
PyObject *result =NULL;
46-
if (_write_method) {
47-
PyObject *decoded =NULL;
48-
decoded =PyUnicode_DecodeLatin1(a,strlen(a),"");
49-
if (decoded ==NULL) {
50-
throwpy::exception();
51-
}
52-
result =PyObject_CallFunctionObjArgs(_write_method, decoded,NULL);
53-
Py_DECREF(decoded);
54-
if (!result) {
55-
throwpy::exception();
56-
}
57-
Py_DECREF(result);
28+
PyObject* decoded =PyUnicode_DecodeLatin1(a,strlen(a),"");
29+
if (decoded ==NULL) {
30+
throwpybind11::error_already_set();
5831
}
32+
_write_method(pybind11::handle(decoded));
33+
Py_DECREF(decoded);
5934
}
6035
};
6136

62-
intfileobject_to_PythonFileWriter(PyObject *object,void *address)
37+
staticvoidconvert_ttf_to_ps(
38+
constchar *filename,
39+
pybind11::object &output,
40+
int fonttype,
41+
pybind11::iterable* glyph_ids)
6342
{
64-
PythonFileWriter *file_writer = (PythonFileWriter *)address;
65-
66-
PyObject *write_method =PyObject_GetAttrString(object,"write");
67-
if (write_method ==NULL || !PyCallable_Check(write_method)) {
68-
PyErr_SetString(PyExc_TypeError,"Expected a file-like object with a write method.");
69-
return0;
70-
}
43+
PythonFileWriteroutput_(output);
7144

72-
file_writer->set(write_method);
73-
Py_DECREF(write_method);
74-
75-
return1;
76-
}
77-
78-
intpyiterable_to_vector_int(PyObject *object,void *address)
79-
{
80-
std::vector<int> *result = (std::vector<int> *)address;
81-
82-
PyObject *iterator =PyObject_GetIter(object);
83-
if (!iterator) {
84-
return0;
85-
}
86-
87-
PyObject *item;
88-
while ((item =PyIter_Next(iterator))) {
89-
long value =PyLong_AsLong(item);
90-
Py_DECREF(item);
91-
if (value == -1 &&PyErr_Occurred()) {
92-
return0;
45+
std::vector<int> glyph_ids_;
46+
if (glyph_ids) {
47+
for (pybind11::handle glyph_id: *glyph_ids) {
48+
glyph_ids_.push_back(glyph_id.cast<int>());
9349
}
94-
result->push_back((int)value);
9550
}
9651

97-
Py_DECREF(iterator);
98-
99-
return1;
100-
}
101-
102-
static PyObject *convert_ttf_to_ps(PyObject *self, PyObject *args, PyObject *kwds)
103-
{
104-
constchar *filename;
105-
PythonFileWriter output;
106-
int fonttype;
107-
std::vector<int> glyph_ids;
108-
109-
staticconstchar *kwlist[] = {"filename","output","fonttype","glyph_ids",NULL };
110-
if (!PyArg_ParseTupleAndKeywords(args,
111-
kwds,
112-
"yO&i|O&:convert_ttf_to_ps",
113-
(char **)kwlist,
114-
&filename,
115-
fileobject_to_PythonFileWriter,
116-
&output,
117-
&fonttype,
118-
pyiterable_to_vector_int,
119-
&glyph_ids)) {
120-
returnNULL;
121-
}
12252

12353
if (fonttype !=3 && fonttype !=42) {
124-
PyErr_SetString(PyExc_ValueError,
125-
"fonttype must be either 3 (raw Postscript) or 42"
126-
"(embedded Truetype)");
127-
returnNULL;
54+
throwpybind11::value_error(
55+
"fonttype must be either 3 (raw Postscript) or 42 (embedded Truetype)");
12856
}
12957

13058
try
13159
{
132-
insert_ttfont(filename,output, (font_type_enum)fonttype, glyph_ids);
60+
insert_ttfont(filename,output_,static_cast<font_type_enum>(fonttype), glyph_ids_);
13361
}
13462
catch (TTException &e)
13563
{
136-
PyErr_SetString(PyExc_RuntimeError, e.getMessage());
137-
returnNULL;
138-
}
139-
catch (const py::exception &)
140-
{
141-
returnNULL;
64+
throwstd::runtime_error(e.getMessage());
14265
}
14366
catch (...)
14467
{
145-
PyErr_SetString(PyExc_RuntimeError,"Unknown C++ exception");
146-
returnNULL;
68+
throwstd::runtime_error("Unknown C++ exception");
14769
}
148-
149-
Py_INCREF(Py_None);
150-
return Py_None;
15170
}
15271

153-
static PyMethodDef ttconv_methods[] =
154-
{
155-
{
156-
"convert_ttf_to_ps", (PyCFunction)convert_ttf_to_ps, METH_VARARGS | METH_KEYWORDS,
157-
"convert_ttf_to_ps(filename, output, fonttype, glyph_ids)\n"
158-
"\n"
72+
PYBIND11_MODULE(_ttconv, m) {
73+
m.doc() ="Module to handle converting and subsetting TrueType"
74+
"fonts to Postscript Type 3, Postscript Type 42 and"
75+
"Pdf Type 3 fonts.";
76+
m.def("convert_ttf_to_ps", &convert_ttf_to_ps,
77+
pybind11::arg("filename"),
78+
pybind11::arg("output"),
79+
pybind11::arg("fonttype"),
80+
pybind11::arg("glyph_ids") =pybind11::none(),
15981
"Converts the Truetype font into a Type 3 or Type 42 Postscript font,"
16082
"optionally subsetting the font to only the desired set of characters.\n"
16183
"\n"
@@ -169,29 +91,5 @@ static PyMethodDef ttconv_methods[] =
16991
"subsetting to a Type 3 font. If glyph_ids is not provided or is None,"
17092
"then all glyphs will be included. If any of the glyphs specified are"
17193
"composite glyphs, then the component glyphs will also be included."
172-
},
173-
{0,0,0,0}/* Sentinel*/
174-
};
175-
176-
staticconstchar *module_docstring =
177-
"Module to handle converting and subsetting TrueType"
178-
"fonts to Postscript Type 3, Postscript Type 42 and"
179-
"Pdf Type 3 fonts.";
180-
181-
static PyModuleDef ttconv_module = {
182-
PyModuleDef_HEAD_INIT,
183-
"ttconv",
184-
module_docstring,
185-
-1,
186-
ttconv_methods,
187-
};
188-
189-
#pragma GCC visibility push(default)
190-
191-
PyMODINIT_FUNC
192-
PyInit__ttconv(void)
193-
{
194-
returnPyModule_Create(&ttconv_module);
94+
);
19595
}
196-
197-
#pragma GCC visibility pop

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