.local/include/python3.9/pygame/include/pgimport.h

   1 #ifndef PGIMPORT_H
   2 #define PGIMPORT_H
   3
   4 /* Prefix when initializing module */
   5 #define MODPREFIX ""
   6 /* Prefix when importing module */
   7 #define IMPPREFIX "pygame."
   8
   9 #ifdef __SYMBIAN32__
  10
  11 /* On Symbian there is no pygame package. The extensions are built-in or in
  12  * sys\bin. */
  13 #undef MODPREFIX
  14 #undef IMPPREFIX
  15 #define MODPREFIX "pygame_"
  16 #define IMPPREFIX "pygame_"
  17
  18 #endif /* __SYMBIAN32__ */
  19
  20 #include "pgcompat.h"
  21
  22 #define PYGAMEAPI_LOCAL_ENTRY "_PYGAME_C_API"
  23 #define PG_CAPSULE_NAME(m) (IMPPREFIX m "." PYGAMEAPI_LOCAL_ENTRY)
  24
  25 /*
  26  * fill API slots defined by PYGAMEAPI_DEFINE_SLOTS/PYGAMEAPI_EXTERN_SLOTS
  27  */
  28 #define _IMPORT_PYGAME_MODULE(module)                                        \
  29     {                                                                        \
  30         PyObject *_mod_##module = PyImport_ImportModule(IMPPREFIX #module);  \
  31                                                                              \
  32         if (_mod_##module != NULL) {                                         \
  33             PyObject *_c_api =                                               \
  34                 PyObject_GetAttrString(_mod_##module, PYGAMEAPI_LOCAL_ENTRY);\
  35                                                                              \
  36             Py_DECREF(_mod_##module);                                        \
  37             if (_c_api != NULL && PyCapsule_CheckExact(_c_api)) {            \
  38                 void **localptr = (void **)PyCapsule_GetPointer(             \
  39                     _c_api, PG_CAPSULE_NAME(#module));                       \
  40                 _PGSLOTS_ ## module = localptr;                              \
  41             }                                                                \
  42             Py_XDECREF(_c_api);                                              \
  43         }                                                                    \
  44     }
  45
  46 #define PYGAMEAPI_IS_IMPORTED(module) (_PGSLOTS_ ## module != NULL)
  47
  48 /*
  49  * source file must include one of these in order to use _IMPORT_PYGAME_MODULE.
  50  * this is set by import_pygame_*() functions.
  51  * disable with NO_PYGAME_C_API
  52  */
  53 #define PYGAMEAPI_DEFINE_SLOTS(module) \
  54     void ** _PGSLOTS_ ## module = NULL
  55 #define PYGAMEAPI_EXTERN_SLOTS(module) \
  56     extern void **_PGSLOTS_ ## module
  57 #define PYGAMEAPI_GET_SLOT(module, index) \
  58     _PGSLOTS_ ## module [(index)]
  59
  60 /*
  61  * disabled API with NO_PYGAME_C_API; do nothing instead
  62  */
  63 #ifdef NO_PYGAME_C_API
  64
  65 #undef PYGAMEAPI_DEFINE_SLOTS
  66 #undef PYGAMEAPI_EXTERN_SLOTS
  67
  68 #define PYGAMEAPI_DEFINE_SLOTS(module)
  69 #define PYGAMEAPI_EXTERN_SLOTS(module)
  70
  71 /* intentionally leave this defined to cause a compiler error *
  72 #define PYGAMEAPI_GET_SLOT(api_root, index)
  73 #undef PYGAMEAPI_GET_SLOT*/
  74
  75 #undef _IMPORT_PYGAME_MODULE
  76 #define _IMPORT_PYGAME_MODULE(module)
  77
  78 #endif /* NO_PYGAME_C_API */
  79
  80 #endif /* ~PGIMPORT_H */