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Merge pull request #1009 from wiredfool/putdata-1008

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Fix for Image.putdata segfault
This commit is contained in:
Hugo 2014-11-14 08:37:50 +02:00
commit b5b0b889d3
3 changed files with 35 additions and 5 deletions
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20
Tests/test_image_putdata.py
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@ -1,4 +1,5 @@
from helper import unittest, PillowTestCase, hopper from helper import unittest, PillowTestCase, hopper
from array import array
import sys import sys
@ -63,6 +64,25 @@ class TestImagePutData(PillowTestCase):
target = [2.0 * float(elt) + 256.0 for elt in data] target = [2.0 * float(elt) + 256.0 for elt in data]
self.assertEqual(list(im.getdata()), target) self.assertEqual(list(im.getdata()), target)
def test_array_B(self):
# shouldn't segfault
# see https://github.com/python-pillow/Pillow/issues/1008
arr = array('B', [0])*15000
im = Image.new('L', (150, 100))
im.putdata(arr)
self.assertEqual(len(im.getdata()),len(arr))
def test_array_F(self):
# shouldn't segfault
# see https://github.com/python-pillow/Pillow/issues/1008
im = Image.new('F', (150, 100))
arr = array('f', [0.0])*15000
im.putdata(arr)
self.assertEqual(len(im.getdata()),len(arr))
if __name__ == '__main__': if __name__ == '__main__':
unittest.main() unittest.main()

10
Tests/test_numpy.py
View File

@ -121,6 +121,16 @@ class TestNumpy(PillowTestCase):
im.point(lut) im.point(lut)
def test_putdata(self):
# shouldn't segfault
# see https://github.com/python-pillow/Pillow/issues/1008
im = Image.new('F', (150, 100))
arr = numpy.zeros((15000,), numpy.float32)
im.putdata(arr)
self.assertEqual(len(im.getdata()),len(arr))
if __name__ == '__main__': if __name__ == '__main__':
unittest.main() unittest.main()

10
_imaging.c
View File

@ -1269,7 +1269,7 @@ _putdata(ImagingObject* self, PyObject* args)
if (scale == 1.0 && offset == 0.0) { if (scale == 1.0 && offset == 0.0) {
/* Clipped data */ /* Clipped data */
for (i = x = y = 0; i < n; i++) { for (i = x = y = 0; i < n; i++) {
op = PySequence_Fast_GET_ITEM(data, i); op = PySequence_Fast_GET_ITEM(seq, i);
image->image8[y][x] = (UINT8) CLIP(PyInt_AsLong(op)); image->image8[y][x] = (UINT8) CLIP(PyInt_AsLong(op));
if (++x >= (int) image->xsize){ if (++x >= (int) image->xsize){
x = 0, y++; x = 0, y++;
@ -1279,7 +1279,7 @@ _putdata(ImagingObject* self, PyObject* args)
} else { } else {
/* Scaled and clipped data */ /* Scaled and clipped data */
for (i = x = y = 0; i < n; i++) { for (i = x = y = 0; i < n; i++) {
PyObject *op = PySequence_Fast_GET_ITEM(data, i); PyObject *op = PySequence_Fast_GET_ITEM(seq, i);
image->image8[y][x] = CLIP( image->image8[y][x] = CLIP(
(int) (PyFloat_AsDouble(op) * scale + offset)); (int) (PyFloat_AsDouble(op) * scale + offset));
if (++x >= (int) image->xsize){ if (++x >= (int) image->xsize){
@ -1299,7 +1299,7 @@ _putdata(ImagingObject* self, PyObject* args)
switch (image->type) { switch (image->type) {
case IMAGING_TYPE_INT32: case IMAGING_TYPE_INT32:
for (i = x = y = 0; i < n; i++) { for (i = x = y = 0; i < n; i++) {
op = PySequence_Fast_GET_ITEM(data, i); op = PySequence_Fast_GET_ITEM(seq, i);
IMAGING_PIXEL_INT32(image, x, y) = IMAGING_PIXEL_INT32(image, x, y) =
(INT32) (PyFloat_AsDouble(op) * scale + offset); (INT32) (PyFloat_AsDouble(op) * scale + offset);
if (++x >= (int) image->xsize){ if (++x >= (int) image->xsize){
@ -1310,7 +1310,7 @@ _putdata(ImagingObject* self, PyObject* args)
break; break;
case IMAGING_TYPE_FLOAT32: case IMAGING_TYPE_FLOAT32:
for (i = x = y = 0; i < n; i++) { for (i = x = y = 0; i < n; i++) {
op = PySequence_Fast_GET_ITEM(data, i); op = PySequence_Fast_GET_ITEM(seq, i);
IMAGING_PIXEL_FLOAT32(image, x, y) = IMAGING_PIXEL_FLOAT32(image, x, y) =
(FLOAT32) (PyFloat_AsDouble(op) * scale + offset); (FLOAT32) (PyFloat_AsDouble(op) * scale + offset);
if (++x >= (int) image->xsize){ if (++x >= (int) image->xsize){
@ -1326,7 +1326,7 @@ _putdata(ImagingObject* self, PyObject* args)
INT32 inkint; INT32 inkint;
} u; } u;
op = PySequence_Fast_GET_ITEM(data, i); op = PySequence_Fast_GET_ITEM(seq, i);
if (!op || !getink(op, image, u.ink)) { if (!op || !getink(op, image, u.ink)) {
return NULL; return NULL;
} }