Differential D8047 Diff 26980 source/blender/blenkernel/intern/fcurve_driver.c

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source/blender/blenkernel/intern/fcurve_driver.c

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#include "BLI_math.h"		#include "BLI_math.h"
#include "BLI_string_utils.h"		#include "BLI_string_utils.h"
#include "BLI_threads.h"		#include "BLI_threads.h"
#include "BLI_utildefines.h"		#include "BLI_utildefines.h"

#include "BLT_translation.h"		#include "BLT_translation.h"

#include "BKE_action.h"		#include "BKE_action.h"
		#include "BKE_animsys.h"
#include "BKE_armature.h"		#include "BKE_armature.h"
#include "BKE_constraint.h"		#include "BKE_constraint.h"
#include "BKE_fcurve_driver.h"		#include "BKE_fcurve_driver.h"
#include "BKE_global.h"		#include "BKE_global.h"
#include "BKE_object.h"		#include "BKE_object.h"

#include "RNA_access.h"		#include "RNA_access.h"

▲ Show 20 Lines • Show All 1,173 Lines • ▼ Show 20 Lines	static void evaluate_driver_min_max(ChannelDriver *driver)

/* store value in driver */		/* store value in driver */
driver->curval = value;		driver->curval = value;
}		}

static void evaluate_driver_python(PathResolvedRNA *anim_rna,		static void evaluate_driver_python(PathResolvedRNA *anim_rna,
ChannelDriver *driver,		ChannelDriver *driver,
ChannelDriver *driver_orig,		ChannelDriver *driver_orig,
const float evaltime)		const AnimationEvalContext *anim_eval_context)
{		{
/* check for empty or invalid expression */		/* check for empty or invalid expression */
if ((driver_orig->expression[0] == '\0') \|\| (driver_orig->flag & DRIVER_FLAG_INVALID)) {		if ((driver_orig->expression[0] == '\0') \|\| (driver_orig->flag & DRIVER_FLAG_INVALID)) {
driver->curval = 0.0f;		driver->curval = 0.0f;
}		}
else if (!driver_try_evaluate_simple_expr(driver, driver_orig, &driver->curval, evaltime)) {		else if (!driver_try_evaluate_simple_expr(
		driver, driver_orig, &driver->curval, anim_eval_context->eval_time)) {
#ifdef WITH_PYTHON		#ifdef WITH_PYTHON
/* this evaluates the expression using Python, and returns its result:		/* this evaluates the expression using Python, and returns its result:
* - on errors it reports, then returns 0.0f		* - on errors it reports, then returns 0.0f
*/		*/
BLI_mutex_lock(&python_driver_lock);		BLI_mutex_lock(&python_driver_lock);

driver->curval = BPY_driver_exec(anim_rna, driver, driver_orig, evaltime);		driver->curval = BPY_driver_exec(anim_rna, driver, driver_orig, anim_eval_context);

BLI_mutex_unlock(&python_driver_lock);		BLI_mutex_unlock(&python_driver_lock);
#else /* WITH_PYTHON*/		#else /* WITH_PYTHON*/
UNUSED_VARS(anim_rna, evaltime);		UNUSED_VARS(anim_rna, anim_eval_context);
#endif /* WITH_PYTHON*/		#endif /* WITH_PYTHON*/
}		}
}		}

/* Evaluate an Channel-Driver to get a 'time' value to use instead of "evaltime"		/* Evaluate an Channel-Driver to get a 'time' value to use instead of "evaltime"
* - "evaltime" is the frame at which F-Curve is being evaluated		* - "evaltime" is the frame at which F-Curve is being evaluated
* - has to return a float value		* - has to return a float value
* - driver_orig is where we cache Python expressions, in case of COW		* - driver_orig is where we cache Python expressions, in case of COW
*/		*/
float evaluate_driver(PathResolvedRNA *anim_rna,		float evaluate_driver(PathResolvedRNA *anim_rna,
ChannelDriver *driver,		ChannelDriver *driver,
ChannelDriver *driver_orig,		ChannelDriver *driver_orig,
const float evaltime)		const AnimationEvalContext *anim_eval_context)
{		{
/* check if driver can be evaluated */		/* check if driver can be evaluated */
if (driver_orig->flag & DRIVER_FLAG_INVALID) {		if (driver_orig->flag & DRIVER_FLAG_INVALID) {
return 0.0f;		return 0.0f;
}		}

switch (driver->type) {		switch (driver->type) {
case DRIVER_TYPE_AVERAGE: /* average values of driver targets */		case DRIVER_TYPE_AVERAGE: /* average values of driver targets */
case DRIVER_TYPE_SUM: /* sum values of driver targets */		case DRIVER_TYPE_SUM: /* sum values of driver targets */
evaluate_driver_sum(driver);		evaluate_driver_sum(driver);
break;		break;
case DRIVER_TYPE_MIN: /* smallest value */		case DRIVER_TYPE_MIN: /* smallest value */
case DRIVER_TYPE_MAX: /* largest value */		case DRIVER_TYPE_MAX: /* largest value */
evaluate_driver_min_max(driver);		evaluate_driver_min_max(driver);
break;		break;
case DRIVER_TYPE_PYTHON: /* expression */		case DRIVER_TYPE_PYTHON: /* expression */
evaluate_driver_python(anim_rna, driver, driver_orig, evaltime);		evaluate_driver_python(anim_rna, driver, driver_orig, anim_eval_context);
break;		break;
default:		default:
/* special 'hack' - just use stored value		/* special 'hack' - just use stored value
* This is currently used as the mechanism which allows animated settings to be able		* This is currently used as the mechanism which allows animated settings to be able
* to be changed via the UI.		* to be changed via the UI.
*/		*/
break;		break;
}		}

/* return value for driver */		/* return value for driver */
return driver->curval;		return driver->curval;
}		}