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| author | Robin Watts <robin.watts@artifex.com> | 2013-06-27 18:22:47 +0100 |
|---|---|---|
| committer | Robin Watts <robin.watts@artifex.com> | 2013-06-27 18:53:27 +0100 |
| commit | 260e54a956c54058051ce6ff31b36ad0ae1b60aa (patch) | |
| tree | 42ec426873ee4daa184b5747cbcbffeb4179101e /source/pdf/pdf-xref.c | |
| parent | e8dca3f6f8aa63c5fecca401c8292f74f3a61b6d (diff) | |
| download | mupdf-260e54a956c54058051ce6ff31b36ad0ae1b60aa.tar.xz | |
Bug 694382: Fix problems arising from recent pdf_obj changes.
Thanks to zeniko for spotting these problems.
When we close a document, purge the glyph cache to ensure that
no type3 glyphs hang around with pointers to pdf_obj's that
are now gone.
Pass doc to pdf_new_obj_from_str rather than NULL. We believe
that the reason this needed to be NULL is no longer valid.
Also, revert to using an int for ref counts.
In a quick test of our regression suite we only found 2 files
that ever made a refcount > 256 (and they never got larger than
768), but the potential is there for issues. Reverting to an
int until we can think of a better idea.
Diffstat (limited to 'source/pdf/pdf-xref.c')
| -rw-r--r-- | source/pdf/pdf-xref.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/source/pdf/pdf-xref.c b/source/pdf/pdf-xref.c index 1b693405..cc4a076b 100644 --- a/source/pdf/pdf-xref.c +++ b/source/pdf/pdf-xref.c @@ -1027,6 +1027,11 @@ pdf_close_document(pdf_document *doc) return; ctx = doc->ctx; + /* Type3 glyphs in the glyph cache can contain pdf_obj pointers + * that we are about to destroy. Simplest solution is to bin the + * glyph cache at this point. */ + fz_purge_glyph_cache(ctx); + pdf_drop_js(doc->js); pdf_free_xref_sections(doc); |