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Skip failing records when rendering WMF images #8506

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Skip failing records when rendering WMF images #8506

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ce40591
Skip failing records when rendering
radarhere Oct 26, 2024
8c1dc0d
Merge branch 'main' into emf_records
radarhere Oct 26, 2024
b4ba466
Do not skip failing records on 32-bit
radarhere Oct 26, 2024
413cae5
Merge branch 'main' into emf_records
radarhere Dec 18, 2024
2ea3ea9
Skip failing WMF records on 32-bit Windows
nulano Dec 26, 2024
e16e334
Merge pull request #28 from nulano/emf_records
radarhere Dec 27, 2024
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11 changes: 10 additions & 1 deletion Tests/test_file_wmf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -8,7 +8,7 @@

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:
Expand Down Expand Up @@ -42,6 +42,15 @@ 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
Expand Down
13 changes: 9 additions & 4 deletions src/display.c
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Original file line number Diff line number Diff line change
Expand Up @@ -716,6 +716,14 @@ 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;
Expand Down Expand Up @@ -796,10 +804,7 @@ 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 */

Expand Down
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