Differential D4277 Diff 13399 source/blender/python/intern/bpy_driver.c

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source/blender/python/intern/bpy_driver.c

Show All 27 Lines
* to deal with the namespace used for driver execution.		* to deal with the namespace used for driver execution.
*/		*/

/* ****************************************** */		/* ****************************************** */
/* Drivers - PyExpression Evaluation */		/* Drivers - PyExpression Evaluation */

#include <Python.h>		#include <Python.h>

		#include "CLG_log.h"

#include "DNA_anim_types.h"		#include "DNA_anim_types.h"

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

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

Show All 10 Lines
#define USE_RNA_AS_PYOBJECT		#define USE_RNA_AS_PYOBJECT

#define USE_BYTECODE_WHITELIST		#define USE_BYTECODE_WHITELIST

#ifdef USE_BYTECODE_WHITELIST		#ifdef USE_BYTECODE_WHITELIST
# include <opcode.h>		# include <opcode.h>
#endif		#endif

		static CLG_LogRef LOG = {"bpy.driver"};

/* 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;

#ifdef USE_BYTECODE_WHITELIST		#ifdef USE_BYTECODE_WHITELIST
static PyObject *bpy_pydriver_Dict__whitelist = NULL;		static PyObject *bpy_pydriver_Dict__whitelist = NULL;
#endif		#endif

/* For faster execution we keep a special dictionary for pydrivers, with		/* For faster execution we keep a special dictionary for pydrivers, with
▲ Show 20 Lines • Show All 167 Lines • ▼ Show 20 Lines	#endif

return;		return;
}		}

/* error return function for BPY_eval_pydriver */		/* error return function for BPY_eval_pydriver */
static void pydriver_error(ChannelDriver *driver)		static void pydriver_error(ChannelDriver *driver)
{		{
driver->flag \|= DRIVER_FLAG_INVALID; /* py expression failed */		driver->flag \|= DRIVER_FLAG_INVALID; /* py expression failed */
fprintf(stderr, "\nError in Driver: The following Python expression failed:\n\t'%s'\n\n", driver->expression);		CLOG_ERROR(&LOG, "The following Python expression failed:\n\t'%s'", driver->expression);

// BPy_errors_to_report(NULL); // TODO - reports		// BPy_errors_to_report(NULL); // TODO - reports
PyErr_Print();		PyErr_Print();
PyErr_Clear();		PyErr_Clear();
}		}

#ifdef USE_BYTECODE_WHITELIST		#ifdef USE_BYTECODE_WHITELIST

▲ Show 20 Lines • Show All 79 Lines • ▼ Show 20 Lines	for (int i = 0; i < PyTuple_GET_SIZE(py_code->co_names); i++) {
for (int j = 0; dict_arr[j]; j++) {		for (int j = 0; dict_arr[j]; j++) {
if (PyDict_Contains(dict_arr[j], name)) {		if (PyDict_Contains(dict_arr[j], name)) {
contains_name = true;		contains_name = true;
break;		break;
}		}
}		}

if (contains_name == false) {		if (contains_name == false) {
fprintf(stderr, "\tBPY_driver_eval() - restructed access disallows name '%s', "		CLOG_ERROR(&LOG, "restructed access disallows name '%s', "
"enable auto-execution to support\n", _PyUnicode_AsString(name));		"enable auto-execution to support", _PyUnicode_AsString(name));
return false;		return false;
}		}
}		}
}		}

/* Check opcodes. */		/* Check opcodes. */
{		{
const _Py_CODEUNIT *codestr;		const _Py_CODEUNIT *codestr;
Py_ssize_t code_len;		Py_ssize_t code_len;

PyBytes_AsStringAndSize(py_code->co_code, (char **)&codestr, &code_len);		PyBytes_AsStringAndSize(py_code->co_code, (char **)&codestr, &code_len);
code_len /= sizeof(*codestr);		code_len /= sizeof(*codestr);

for (Py_ssize_t i = 0; i < code_len; i++) {		for (Py_ssize_t i = 0; i < code_len; i++) {
const int opcode = _Py_OPCODE(codestr[i]);		const int opcode = _Py_OPCODE(codestr[i]);
if (secure_opcodes[opcode] == 0) {		if (secure_opcodes[opcode] == 0) {
fprintf(stderr, "\tBPY_driver_eval() - restructed access disallows opcode '%d', "		CLOG_ERROR(&LOG, "restructed access disallows opcode '%d', "
"enable auto-execution to support\n", opcode);		"enable auto-execution to support", opcode);
return false;		return false;
}		}
}		}

#undef CODESIZE		#undef CODESIZE
}		}

return true;		return true;
Show All 39 Lines	if (expr[0] == '\0')
return 0.0f;		return 0.0f;

#ifndef USE_BYTECODE_WHITELIST		#ifndef USE_BYTECODE_WHITELIST
if (!(G.f & G_SCRIPT_AUTOEXEC)) {		if (!(G.f & G_SCRIPT_AUTOEXEC)) {
if (!(G.f & G_SCRIPT_AUTOEXEC_FAIL_QUIET)) {		if (!(G.f & G_SCRIPT_AUTOEXEC_FAIL_QUIET)) {
G.f \|= G_SCRIPT_AUTOEXEC_FAIL;		G.f \|= G_SCRIPT_AUTOEXEC_FAIL;
BLI_snprintf(G.autoexec_fail, sizeof(G.autoexec_fail), "Driver '%s'", expr);		BLI_snprintf(G.autoexec_fail, sizeof(G.autoexec_fail), "Driver '%s'", expr);

printf("skipping driver '%s', automatic scripts are disabled\n", expr);		CLOG_WARN(&LOG, "skipping driver '%s', automatic scripts are disabled", expr);
}		}
return 0.0f;		return 0.0f;
}		}
#else		#else
bool is_recompile = false;		bool is_recompile = false;
#endif		#endif

use_gil = true; /* !PyC_IsInterpreterActive(); */		use_gil = true; /* !PyC_IsInterpreterActive(); */

if (use_gil)		if (use_gil)
gilstate = PyGILState_Ensure();		gilstate = PyGILState_Ensure();

/* needed since drivers are updated directly after undo where 'main' is		/* needed since drivers are updated directly after undo where 'main' is
* re-allocated [#28807] */		* re-allocated [#28807] */
BPY_update_rna_module();		BPY_update_rna_module();

/* init global dictionary for py-driver evaluation settings */		/* init global dictionary for py-driver evaluation settings */
if (!bpy_pydriver_Dict) {		if (!bpy_pydriver_Dict) {
if (bpy_pydriver_create_dict() != 0) {		if (bpy_pydriver_create_dict() != 0) {
fprintf(stderr, "PyDriver error: couldn't create Python dictionary\n");		CLOG_ERROR(&LOG, "couldn't create Python dictionary");
if (use_gil)		if (use_gil)
PyGILState_Release(gilstate);		PyGILState_Release(gilstate);
return 0.0f;		return 0.0f;
}		}
}		}

/* update global namespace */		/* update global namespace */
bpy_pydriver_namespace_update_frame(evaltime);		bpy_pydriver_namespace_update_frame(evaltime);
▲ Show 20 Lines • Show All 86 Lines • ▼ Show 20 Lines	#endif
/* 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) != -1) {		if (PyDict_SetItem(driver_vars, PyTuple_GET_ITEM(expr_vars, i++), driver_arg) != -1) {
Py_DECREF(driver_arg);		Py_DECREF(driver_arg);
}		}
else {		else {
/* 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");		CLOG_ERROR(&LOG, "Error while evaluating PyDriver:");
targets_ok = 0;		targets_ok = 0;
}		}

fprintf(stderr, "\tBPY_driver_eval() - couldn't add variable '%s' to namespace\n", dvar->name);		CLOG_ERROR(&LOG, "couldn't add variable '%s' to namespace", dvar->name);
// BPy_errors_to_report(NULL); // TODO - reports		// BPy_errors_to_report(NULL); // TODO - reports
		// TODO: access pyerr data and send through CLOG?
PyErr_Print();		PyErr_Print();
PyErr_Clear();		PyErr_Clear();
}		}
}		}

#ifdef USE_BYTECODE_WHITELIST		#ifdef USE_BYTECODE_WHITELIST
if (is_recompile && expr_code) {		if (is_recompile && expr_code) {
if (!(G.f & G_SCRIPT_AUTOEXEC)) {		if (!(G.f & G_SCRIPT_AUTOEXEC)) {
▲ Show 20 Lines • Show All 42 Lines • ▼ Show 20 Lines	#endif

if (use_gil)		if (use_gil)
PyGILState_Release(gilstate);		PyGILState_Release(gilstate);

if (isfinite(result)) {		if (isfinite(result)) {
return (float)result;		return (float)result;
}		}
else {		else {
fprintf(stderr, "\tBPY_driver_eval() - driver '%s' evaluates to '%f'\n", driver->expression, result);		CLOG_ERROR(&LOG, "driver '%s' evaluates to '%f'", driver->expression, result);
return 0.0f;		return 0.0f;
}		}
}		}