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Use PySequence_Fast* to iterate over the list

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Pre commit:

$ NOSE_PROCESSES=0 PILLOW_RUN_KNOWN_BAD=1 time ./test-installed.py Tests/test_image_point.py
..
----------------------------------------------------------------------
Ran 2 tests in 132.056s

OK
131.63user 0.62system 2:12.28elapsed 99%CPU (0avgtext+0avgdata 292176maxresident)k
264inputs+0outputs (2major+451088minor)pagefaults 0swaps

Post:

$ NOSE_PROCESSES=0 PILLOW_RUN_KNOWN_BAD=1 time ./test-installed.py Tests/test_image_point.py
..
----------------------------------------------------------------------
Ran 2 tests in 0.338s

OK
0.52user 0.06system 0:00.59elapsed 98%CPU (0avgtext+0avgdata 257584maxresident)k
176inputs+32outputs (2major+18033minor)pagefaults 0swaps

$ python --version
Python 2.7.6 (2.3.1+dfsg-1~ppa1, Jun 20 2014, 09:27:47)
[PyPy 2.3.1 with GCC 4.6.3]
This commit is contained in:
wiredfool 2014-07-23 14:37:04 -07:00
parent 94ca2b1076
commit a5aea42bc9
1 changed files with 30 additions and 56 deletions
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86
_imaging.c
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@ -365,9 +365,12 @@ getbands(const char* mode)
static void*
getlist(PyObject* arg, int* length, const char* wrong_length, int type)
{
int i, n;
int i, n, itemp;
double dtemp;
void* list;
PyObject* seq;
PyObject* op;
if (!PySequence_Check(arg)) {
PyErr_SetString(PyExc_TypeError, must_be_sequence);
return NULL;
@ -383,70 +386,41 @@ getlist(PyObject* arg, int* length, const char* wrong_length, int type)
if (!list)
return PyErr_NoMemory();
seq = PySequence_Fast(arg, must_be_sequence);
if (!seq) {
free(list);
PyErr_SetString(PyExc_TypeError, must_be_sequence);
return NULL;
}
switch (type) {
case TYPE_UINT8:
if (PyList_Check(arg)) {
for (i = 0; i < n; i++) {
PyObject *op = PyList_GET_ITEM(arg, i);
int temp = PyInt_AsLong(op);
((UINT8*)list)[i] = CLIP(temp);
}
} else {
for (i = 0; i < n; i++) {
PyObject *op = PySequence_GetItem(arg, i);
int temp = PyInt_AsLong(op);
Py_XDECREF(op);
((UINT8*)list)[i] = CLIP(temp);
}
for (i = 0; i < n; i++) {
op = PySequence_Fast_GET_ITEM(seq, i);
itemp = PyInt_AsLong(op);
((UINT8*)list)[i] = CLIP(itemp);
}
break;
case TYPE_INT32:
if (PyList_Check(arg)) {
for (i = 0; i < n; i++) {
PyObject *op = PyList_GET_ITEM(arg, i);
int temp = PyInt_AsLong(op);
((INT32*)list)[i] = temp;
}
} else {
for (i = 0; i < n; i++) {
PyObject *op = PySequence_GetItem(arg, i);
int temp = PyInt_AsLong(op);
Py_XDECREF(op);
((INT32*)list)[i] = temp;
}
for (i = 0; i < n; i++) {
op = PySequence_Fast_GET_ITEM(seq, i);
itemp = PyInt_AsLong(op);
((INT32*)list)[i] = itemp;
}
break;
case TYPE_FLOAT32:
if (PyList_Check(arg)) {
for (i = 0; i < n; i++) {
PyObject *op = PyList_GET_ITEM(arg, i);
double temp = PyFloat_AsDouble(op);
((FLOAT32*)list)[i] = (FLOAT32) temp;
}
} else {
for (i = 0; i < n; i++) {
PyObject *op = PySequence_GetItem(arg, i);
double temp = PyFloat_AsDouble(op);
Py_XDECREF(op);
((FLOAT32*)list)[i] = (FLOAT32) temp;
}
}
for (i = 0; i < n; i++) {
op = PySequence_Fast_GET_ITEM(seq, i);
dtemp = PyFloat_AsDouble(op);
((FLOAT32*)list)[i] = (FLOAT32) dtemp;
}
break;
case TYPE_DOUBLE:
if (PyList_Check(arg)) {
for (i = 0; i < n; i++) {
PyObject *op = PyList_GET_ITEM(arg, i);
double temp = PyFloat_AsDouble(op);
((double*)list)[i] = temp;
}
} else {
for (i = 0; i < n; i++) {
PyObject *op = PySequence_GetItem(arg, i);
double temp = PyFloat_AsDouble(op);
Py_XDECREF(op);
((double*)list)[i] = temp;
}
}
for (i = 0; i < n; i++) {
op = PySequence_Fast_GET_ITEM(seq, i);
dtemp = PyFloat_AsDouble(op);
((double*)list)[i] = (double) dtemp;
}
break;
}