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compile python driver expressions for faster re-evaluation.

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approx 15-25x speedup
This commit is contained in:
Campbell Barton
2009-12-08 10:36:46 +00:00
parent 445d077cf4
commit 0391b1ab78
6 changed files with 40 additions and 7 deletions
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18
source/blender/python/intern/bpy_interface.c
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@@ -549,7 +549,9 @@ int BPY_run_script_space_listener(bContext *C, SpaceScript * sc)
void BPY_DECREF(void *pyob_ptr)
{
PyGILState_STATE gilstate = PyGILState_Ensure();
Py_DECREF((PyObject *)pyob_ptr);
PyGILState_Release(gilstate);
}
#if 0
@@ -721,7 +723,7 @@ static float pydriver_error(ChannelDriver *driver)
float BPY_pydriver_eval (ChannelDriver *driver)
{
PyObject *driver_vars=NULL;
PyObject *retval;
PyObject *retval= NULL;
PyGILState_STATE gilstate;
DriverTarget *dtar;
@@ -772,10 +774,20 @@ float BPY_pydriver_eval (ChannelDriver *driver)
BPy_errors_to_report(NULL); // TODO - reports
}
}
#if 0 // slow
/* execute expression to get a value */
retval = PyRun_String(expr, Py_eval_input, bpy_pydriver_Dict, driver_vars);
#else
if(driver->flag & DRIVER_FLAG_RECOMPILE || driver->expr_comp==NULL) {
Py_XDECREF(driver->expr_comp);
driver->expr_comp= Py_CompileString(expr, "<bpy driver>", Py_eval_input);
driver->flag &= ~DRIVER_FLAG_RECOMPILE;
}
if(driver->expr_comp)
retval= PyEval_EvalCode(driver->expr_comp, bpy_pydriver_Dict, driver_vars);
#endif
/* decref the driver vars first... */
Py_DECREF(driver_vars);