Merge pull request #8506 from radarhere/emf_records

Skip failing records when rendering WMF images
This commit is contained in:
Hugo van Kemenade 2025-03-29 18:19:10 +02:00 committed by GitHub
commit 2579973815
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
2 changed files with 19 additions and 5 deletions

View File

@ -8,7 +8,7 @@ import pytest
from PIL import Image, ImageFile, WmfImagePlugin
from .helper import assert_image_similar_tofile, hopper
from .helper import assert_image_equal_tofile, assert_image_similar_tofile, hopper
def test_load_raw() -> None:
@ -44,6 +44,15 @@ def test_load_zero_inch() -> None:
pass
def test_render() -> None:
with open("Tests/images/drawing.emf", "rb") as fp:
data = fp.read()
b = BytesIO(data[:808] + b"\x00" + data[809:])
with Image.open(b) as im:
if hasattr(Image.core, "drawwmf"):
assert_image_equal_tofile(im, "Tests/images/drawing.emf")
def test_register_handler(tmp_path: Path) -> None:
class TestHandler(ImageFile.StubHandler):
methodCalled = False

View File

@ -687,6 +687,14 @@ PyImaging_EventLoopWin32(PyObject *self, PyObject *args) {
#define GET32(p, o) ((DWORD *)(p + o))[0]
static int CALLBACK
enhMetaFileProc(
HDC hdc, HANDLETABLE *lpht, const ENHMETARECORD *lpmr, int nHandles, LPARAM data
) {
PlayEnhMetaFileRecord(hdc, lpht, lpmr, nHandles);
return 1;
}
PyObject *
PyImaging_DrawWmf(PyObject *self, PyObject *args) {
HBITMAP bitmap;
@ -767,10 +775,7 @@ PyImaging_DrawWmf(PyObject *self, PyObject *args) {
/* FIXME: make background transparent? configurable? */
FillRect(dc, &rect, GetStockObject(WHITE_BRUSH));
if (!PlayEnhMetaFile(dc, meta, &rect)) {
PyErr_SetString(PyExc_OSError, "cannot render metafile");
goto error;
}
EnumEnhMetaFile(dc, meta, enhMetaFileProc, NULL, &rect);
/* step 4: extract bits from bitmap */