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API to load FreeType font from path and psname

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This commit is contained in:
Kovid Goyal
2017-11-10 14:50:15 +05:30
parent b0fffad0c2
commit c2b2833a37
2 changed files with 32 additions and 1 deletions
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1
kitty/fonts.h
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@@ -25,3 +25,4 @@ void sprite_tracker_set_limits(size_t max_texture_size, size_t max_array_len);
void sprite_tracker_set_layout(unsigned int cell_width, unsigned int cell_height);
typedef void (*free_extra_data_func)(void*);
PyObject* ft_face_from_data(const uint8_t* data, size_t sz, void *extra_data, free_extra_data_func fed, PyObject *path, int hinting, int hintstyle, float size_in_pts, float xdpi, float ydpi);
PyObject* ft_face_from_path_and_psname(const char* path, const char* psname, void *extra_data, free_extra_data_func fed, int hinting, int hintstyle, float size_in_pts, float xdpi, float ydpi);

32
kitty/freetype.c
View File

@@ -133,9 +133,39 @@ ft_face_from_data(const uint8_t* data, size_t sz, void *extra_data, free_extra_d
if (ans == NULL) return NULL;
int error = FT_New_Memory_Face(library, data, sz, 0, &ans->face);
if(error) { set_freetype_error("Failed to load memory face, with error:", error); Py_CLEAR(ans); return NULL; }
if (!init_ft_face(ans, path, hinting, hintstyle, size_in_pts, xdpi, ydpi)) Py_CLEAR(ans);
ans->extra_data = extra_data;
ans->free_extra_data = fed;
if (!init_ft_face(ans, path, hinting, hintstyle, size_in_pts, xdpi, ydpi)) Py_CLEAR(ans);
return (PyObject*)ans;
}
static inline bool
load_from_path_and_psname(const char *path, const char* psname, FT_Face ans) {
int error, num_faces, index = 0;
error = FT_New_Face(library, path, index, &ans);
if (error) { set_freetype_error("False to load face, with error:", error); return false; }
num_faces = ans->num_faces;
if (num_faces < 2) return true;
do {
if (strcmp(FT_Get_Postscript_Name(ans), psname) == 0) return true;
FT_Done_Face(ans);
error = FT_New_Face(library, path, ++index, &ans);
if (error) continue;
} while(index < num_faces);
PyErr_Format(PyExc_ValueError, "No face matching the postscript name: %s found in: %s", psname, path);
return false;
}
PyObject*
ft_face_from_path_and_psname(const char* path, const char* psname, void *extra_data, free_extra_data_func fed, int hinting, int hintstyle, float size_in_pts, float xdpi, float ydpi) {
Face *ans = (Face*)Face_Type.tp_alloc(&Face_Type, 0);
if (!load_from_path_and_psname(path, psname, ans->face)) { Py_CLEAR(ans); return NULL; }
PyObject *p = PyUnicode_FromString(path);
if (p == NULL) { Py_CLEAR(ans); return NULL; }
if (!init_ft_face(ans, p, hinting, hintstyle, size_in_pts, xdpi, ydpi)) Py_CLEAR(ans);
ans->extra_data = extra_data;
ans->free_extra_data = fed;
Py_DECREF(p);
return (PyObject*)ans;
}