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Support writing InkNames

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This commit is contained in:
Andrew Murray 2025-10-23 08:53:00 +11:00
parent 76f04b46c5
commit b04d8792f5
3 changed files with 18 additions and 6 deletions
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12
Tests/test_file_libtiff.py
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@ -355,6 +355,18 @@ class TestFileLibTiff(LibTiffTestCase):
# Should not segfault
im.save(outfile)
def test_inknames_tag(
self, monkeypatch: pytest.MonkeyPatch, tmp_path: Path
) -> None:
monkeypatch.setattr(TiffImagePlugin, "WRITE_LIBTIFF", True)
out = tmp_path / "temp.tif"
hopper("L").save(out, tiffinfo={333: "name\x00"})
with Image.open(out) as reloaded:
assert isinstance(reloaded, TiffImagePlugin.TiffImageFile)
assert reloaded.tag_v2[333] in ("name", "name\x00")
def test_whitepoint_tag(
self, monkeypatch: pytest.MonkeyPatch, tmp_path: Path
) -> None:

1
src/PIL/TiffTags.py
View File

@ -558,7 +558,6 @@ LIBTIFF_CORE = {
LIBTIFF_CORE.remove(255) # We don't have support for subfiletypes
LIBTIFF_CORE.remove(322) # We don't have support for writing tiled images with libtiff
LIBTIFF_CORE.remove(323) # Tiled images
LIBTIFF_CORE.remove(333) # Ink Names either
# Note to advanced users: There may be combinations of these
# parameters and values that when added properly, will work and

11
src/encode.c
View File

@ -668,10 +668,10 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
int key_int, status, is_core_tag, is_var_length, num_core_tags, i;
TIFFDataType type = TIFF_NOTYPE;
// This list also exists in TiffTags.py
const int core_tags[] = {256, 257, 258, 259, 262, 263, 266, 269, 274,
277, 278, 280, 281, 340, 341, 282, 283, 284,
286, 287, 296, 297, 320, 321, 338, 32995, 32998,
32996, 339, 32997, 330, 531, 530, 65537, 301, 532};
const int core_tags[] = {256, 257, 258, 259, 262, 263, 266, 269, 274, 277,
278, 280, 281, 282, 283, 284, 286, 287, 296, 297,
301, 320, 321, 330, 333, 338, 339, 340, 341, 530,
531, 532, 32995, 32996, 32997, 32998, 65537};
Py_ssize_t tags_size;
PyObject *item;
@ -821,7 +821,8 @@ PyImaging_LibTiffEncoderNew(PyObject *self, PyObject *args) {
}
}
if (type == TIFF_BYTE || type == TIFF_UNDEFINED) {
if (type == TIFF_BYTE || type == TIFF_UNDEFINED ||
key_int == TIFFTAG_INKNAMES) {
status = ImagingLibTiffSetField(
&encoder->state,
(ttag_t)key_int,