OpenSystemsDevelopment / qpdf

Commit 3416c60fe9ec4a6ad5c1e08a757bd63a4699a5a5

Authored by Jay Berkenbilt
1 parent 58b08ca6

save pass1 patch 


git-svn-id: svn+q:///qpdf/trunk@931 71b93d88-0707-0410-a8cf-f5a4172ac649
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Showing 1 changed file with 48 additions and 6 deletions
1 -2.1  
2 -===  
3 -  
4 - * Remove rc1 from version; search for rc1 in release notes as  
5 - well...just change rc1 to 2.1 and update the date.  
6 -  
7 2.2 1 2.2
8 === 2 ===
9 3
@@ -21,6 +15,54 @@ @@ -21,6 +15,54 @@
21 General 15 General
22 ======= 16 =======
23 17
  18 + * For debugging linearization bugs, consider adding an option to save
  19 + pass 1 of linearization. This code is sufficient. Change the
  20 + interface to allow specification of a pass1 file, which would
  21 + change the behavior as in this patch.
  22 +
  23 +------------------------------
  24 +Index: QPDFWriter.cc
  25 +===================================================================
  26 +--- QPDFWriter.cc (revision 920)
  27 ++++ QPDFWriter.cc (working copy)
  28 +@@ -1958,11 +1960,15 @@
  29 +
  30 + // Write file in two passes. Part numbers refer to PDF spec 1.4.
  31 +
  32 ++ FILE* XXX = 0;
  33 + for (int pass = 1; pass <= 2; ++pass)
  34 + {
  35 + if (pass == 1)
  36 + {
  37 +- pushDiscardFilter();
  38 ++// pushDiscardFilter();
  39 ++ XXX = fopen("/tmp/pass1.pdf", "w");
  40 ++ pushPipeline(new Pl_StdioFile("pass1", XXX));
  41 ++ activatePipelineStack();
  42 + }
  43 +
  44 + // Part 1: header
  45 +@@ -2037,7 +2043,8 @@
  46 + t_lin_first, first_half_start, first_half_end,
  47 + first_trailer_size,
  48 + hint_length + second_xref_offset,
  49 +- hint_id, hint_offset, hint_length);
  50 ++ hint_id, hint_offset, hint_length,
  51 ++ (pass == 1));
  52 + int endpos = this->pipeline->getCount();
  53 + if (pass == 1)
  54 + {
  55 +@@ -2187,6 +2194,8 @@
  56 +
  57 + // Restore hint offset
  58 + this->xref[hint_id] = QPDFXRefEntry(1, hint_offset, 0);
  59 ++ fclose(XXX);
  60 ++ XXX = 0;
  61 + }
  62 + }
  63 + }
  64 +------------------------------
  65 +
24 * Handle embedded files. PDF Reference 1.7 section 3.10, "File 66 * Handle embedded files. PDF Reference 1.7 section 3.10, "File
25 Specifications", discusses this. Once we can definitely recongize 67 Specifications", discusses this. Once we can definitely recongize
26 all embedded files in a docucment, we can update the encryption 68 all embedded files in a docucment, we can update the encryption