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| author | Alex Cherepanov <alex.cherepanov@artifex.com> | 2012-02-25 14:54:03 -0500 |
|---|---|---|
| committer | Chris Liddell <chris.liddell@artifex.com> | 2012-03-15 11:54:23 +0000 |
| commit | ffd1dc7bccdf7b7f1332c1dca64cdbec91593d55 (patch) | |
| tree | 2722f923e9b22ab3d3f0506d732e96a811046f4b | |
| parent | b28494adf4f9a7440aecd4ffa26f53d35fa39842 (diff) | |
Bug 692878: Convert Type 4 image with invalid mask to Type 1
Improve the revision 3de55841eefb38c751772ac767c5abab155d7d91.
Convert Type 4 images with invalid /Mask attribute to Type 1
images. Previous version used the mask [1 0] in such cases,
which was not compatible with pdfwrite.
| -rw-r--r-- | gs/Resource/Init/pdf_draw.ps | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/gs/Resource/Init/pdf_draw.ps b/gs/Resource/Init/pdf_draw.ps index 6f20571a5..50bde195a 100644 --- a/gs/Resource/Init/pdf_draw.ps +++ b/gs/Resource/Init/pdf_draw.ps @@ -1582,7 +1582,7 @@ currentdict /last-ditch-bpc-csp undef dup 0 oget dup 0 lt exch 1 BitsPerComponent bitshift ge or { % First component is invalid - AR9 ignores the mask - pop [1 0] % no-op mask + pop //null } { % Second component is invalid; AR9 replaces it with 1. [ exch 0 oget 1 ] @@ -1592,7 +1592,12 @@ currentdict /last-ditch-bpc-csp undef [ exch { 1 BitsPerComponent bitshift 1 sub and } forall ] } ifelse } if - /MaskColor exch def + dup //null ne { + /MaskColor exch def + } { + pop + /ImageType 1 def + } ifelse } { % Mask is a stream, another Image XObject. % Stack: datasource imagemask(false) maskstreamdict |