Differential D1812 Diff 6166 source/blender/python/intern/bpy_driver.c

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source/blender/python/intern/bpy_driver.c

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#include "BLI_listbase.h"		#include "BLI_listbase.h"
#include "BLI_math_base.h"		#include "BLI_math_base.h"
#include "BLI_string.h"		#include "BLI_string.h"

#include "BKE_fcurve.h"		#include "BKE_fcurve.h"
#include "BKE_global.h"		#include "BKE_global.h"

		#include "RNA_access.h"

#include "bpy_driver.h"		#include "bpy_driver.h"

extern void BPY_update_rna_module(void);		extern void BPY_update_rna_module(void);

		/* XXX, use some special include? - rather not include all of bpy_rna.h here */
		extern PyObject pyrna_prop_to_py(PointerRNA ptr, PropertyRNA *prop);
		extern PyObject pyrna_array_index(PointerRNA ptr, PropertyRNA *prop, int index);
		extern PyObject pyrna_struct_CreatePyObject(PointerRNA ptr);


/* for pydrivers (drivers using one-line Python expressions to express relationships between targets) */		/* for pydrivers (drivers using one-line Python expressions to express relationships between targets) */
PyObject *bpy_pydriver_Dict = NULL;		PyObject *bpy_pydriver_Dict = NULL;

/* For faster execution we keep a special dictionary for pydrivers, with		/* For faster execution we keep a special dictionary for pydrivers, with
* the needed modules and aliases.		* the needed modules and aliases.
*/		*/
int bpy_pydriver_create_dict(void)		int bpy_pydriver_create_dict(void)
▲ Show 20 Lines • Show All 200 Lines • ▼ Show 20 Lines	float BPY_driver_exec(ChannelDriver *driver, const float evaltime)
else {		else {
expr_vars = PyTuple_GET_ITEM(((PyObject *)driver->expr_comp), 1);		expr_vars = PyTuple_GET_ITEM(((PyObject *)driver->expr_comp), 1);
}		}

/* add target values to a dict that will be used as '__locals__' dict */		/* add target values to a dict that will be used as '__locals__' dict */
driver_vars = PyDict_New(); // XXX do we need to decref this?		driver_vars = PyDict_New(); // XXX do we need to decref this?
for (dvar = driver->variables.first, i = 0; dvar; dvar = dvar->next) {		for (dvar = driver->variables.first, i = 0; dvar; dvar = dvar->next) {
PyObject *driver_arg = NULL;		PyObject *driver_arg = NULL;
float tval = 0.0f;

		/* support for any RNA data */
		#if 1
		if (dvar->type == DVAR_TYPE_SINGLE_PROP) {
		PointerRNA ptr;
		PropertyRNA *prop = NULL;
		int index;
		if (driver_get_variable_object(driver, &dvar->targets[0], &ptr, &prop, &index)) {
		if (prop) {
		if (index != -1) {
		if (index >= RNA_property_array_length(&ptr, prop) \|\| index < 0) {
		/* can't resolve, fallback to None */
		driver_arg = PyFloat_FromDouble(0.0);
		}
		else {
		/* object, property & index */
		driver_arg = pyrna_array_index(&ptr, prop, index);
		}
		}
		else {
		/* object & property */
		driver_arg = pyrna_prop_to_py(&ptr, prop);
		}
		}
		else {
		/* object only */
		driver_arg = pyrna_struct_CreatePyObject(&ptr);
		}
		}
		else {
		/* can't resolve, fallback to 0.0 */
		driver_arg = PyFloat_FromDouble(0.0);
		}
		}
		else
		#endif
		{
/* try to get variable value */		/* try to get variable value */
tval = driver_get_variable_value(driver, dvar);		float tval = driver_get_variable_value(driver, dvar);
driver_arg = PyFloat_FromDouble((double)tval);		driver_arg = PyFloat_FromDouble((double)tval);
		}

/* try to add to dictionary */		/* try to add to dictionary */
/* if (PyDict_SetItemString(driver_vars, dvar->name, driver_arg)) { */		/* if (PyDict_SetItemString(driver_vars, dvar->name, driver_arg)) { */
if (PyDict_SetItem(driver_vars, PyTuple_GET_ITEM(expr_vars, i++), driver_arg) < 0) {		if (PyDict_SetItem(driver_vars, PyTuple_GET_ITEM(expr_vars, i++), driver_arg) < 0) {
/* this target failed - bad name */		/* this target failed - bad name */
if (targets_ok) {		if (targets_ok) {
/* first one - print some extra info for easier identification */		/* first one - print some extra info for easier identification */
fprintf(stderr, "\nBPY_driver_eval() - Error while evaluating PyDriver:\n");		fprintf(stderr, "\nBPY_driver_eval() - Error while evaluating PyDriver:\n");
targets_ok = 0;		targets_ok = 0;
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