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Use raqm version checking

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This commit is contained in:
Andrew Murray 2019-05-31 20:25:28 +10:00
parent 54c83f61bd
commit ca52e46105
1 changed files with 7 additions and 5 deletions
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12
src/_imagingft.c
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@ -79,6 +79,9 @@ typedef struct {
static PyTypeObject Font_Type;
typedef bool (*t_raqm_version_atleast)(unsigned int major,
unsigned int minor,
unsigned int micro);
typedef raqm_t* (*t_raqm_create)(void);
typedef int (*t_raqm_set_text)(raqm_t *rq,
const uint32_t *text,
@ -107,6 +110,7 @@ typedef void (*t_raqm_destroy) (raqm_t *rq);
typedef struct {
void* raqm;
int version;
t_raqm_version_atleast version_atleast;
t_raqm_create create;
t_raqm_set_text set_text;
t_raqm_set_text_utf8 set_text_utf8;
@ -162,6 +166,7 @@ setraqm(void)
}
#if !defined(_MSC_VER)
p_raqm.version_atleast = (t_raqm_version_atleast)dlsym(p_raqm.raqm, "raqm_version_atleast");
p_raqm.create = (t_raqm_create)dlsym(p_raqm.raqm, "raqm_create");
p_raqm.set_text = (t_raqm_set_text)dlsym(p_raqm.raqm, "raqm_set_text");
p_raqm.set_text_utf8 = (t_raqm_set_text_utf8)dlsym(p_raqm.raqm, "raqm_set_text_utf8");
@ -194,6 +199,7 @@ setraqm(void)
return 2;
}
#else
p_raqm.version_atleast = (t_raqm_version_atleast)GetProcAddress(p_raqm.raqm, "raqm_version_atleast");
p_raqm.create = (t_raqm_create)GetProcAddress(p_raqm.raqm, "raqm_create");
p_raqm.set_text = (t_raqm_set_text)GetProcAddress(p_raqm.raqm, "raqm_set_text");
p_raqm.set_text_utf8 = (t_raqm_set_text_utf8)GetProcAddress(p_raqm.raqm, "raqm_set_text_utf8");
@ -409,11 +415,7 @@ text_layout_raqm(PyObject* string, FontObject* self, const char* dir, PyObject *
direction = RAQM_DIRECTION_LTR;
else if (strcmp(dir, "ttb") == 0) {
direction = RAQM_DIRECTION_TTB;
#if !defined(_MSC_VER)
if (!dlsym(p_raqm.raqm, "raqm_version_atleast")) {
#else
if (!GetProcAddress(p_raqm.raqm, "raqm_version_atleast")) {
#endif
if (p_raqm.version_atleast == NULL || !(*p_raqm.version_atleast)(0, 7, 0)) {
PyErr_SetString(PyExc_ValueError, "libraqm 0.7 or greater required for 'ttb' direction");
goto failed;
}