[Poppler-bugs] [Bug 75241] New: pdftops 0.25.1 -eps -level1sep creates an invalid EPS when tiling with a bitmap

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=75241

          Priority: medium
            Bug ID: 75241
          Assignee: poppler-bugs at lists.freedesktop.org
           Summary: pdftops 0.25.1 -eps -level1sep creates an invalid EPS
                    when tiling with a bitmap
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: williambader at hotmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: utils
           Product: poppler

pdftops -eps -level1sep creates an invalid EPS for the attached PDF.
I have a section of the generated EPS below.
ghostscript gets a /limitcheck in the first few bytes of the pdfIm1Sep data.
I think that PSOutputDev::tilingPatternFillL1() is generating the font as a way
to implement tiling patterns in Level 1.
This might have to be a case where pdftops has to rasterize in
PSOutputDev::checkPageSlice().
Maybe PreScanOutputDev::tilingPatternFill() needs to do more testing that the
tiled image is not an image mask.
The tiling that causes the problem has painttype 1 tilingtype 1.
Changing the call in PreScanOutputDev::tilingPatternFill() to
  gfx->drawForm(str, resDict, mat, bbox, gFalse, gTrue);
(to set softMask to true) fixes this file but causes other files to be
rasterized unnecessarily.
William

346.332397 107.800697 343.208099 110.819 339.473389 113.085899 c
335.411713 115.526199 l
338.945007 122.620796 l
h
W*
8 dict begin
/FontType 3 def
/FontMatrix [1 0 0 1 0 0] def
/FontBBox [0 0 141.7323 141.7323] def
/Encoding 256 array def
  0 1 255 { Encoding exch /.notdef put } for
  Encoding 120 /x put
/BuildGlyph {
  exch /CharProcs get exch
  2 copy known not { pop /.notdef } if
  get exec
} bind def
/BuildChar {
  1 index /Encoding get exch get
  1 index /BuildGlyph get exec
} bind def
/CharProcs 1 dict def
CharProcs begin
/x {
141.7323 0 setcharwidth
q
[141.732574 0 0 141.732574 0 0.000003] cm
268 268 8 [268 0 0 -268 0 268] pdfIm1Sep
32323b373b38393c3d3d3b3b342a2d2737383232313831383c3b3c3830323232
32321d3c383233383830383037363e323b323339323d3833343a323237363b30
30353b3a34311d25252b3737373232312b383c3a31383d38251332323d1c3531
323c3b342d233d282c32323135313c373230372e2532371832383c3c303b3a33
...
7376766b5f220b0b0707125e5e3261610327080e7676767660666d64603f4e07
Q
} def
end
currentdict end
/xpdfTile0 exch definefont pop
/xpdfTile0 findfont setfont
fCol
gsave [0.45376 0 0 0.42696 335 76] concat
0 1 1 { 0 exch 141.7323 mul m 0 1 1 { pop (x) show } for } for  
grestore
Q

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