New file with some random thoughts.

[evince.git] / pdf / xpdf / XRef.h

diff --git a/pdf/xpdf/XRef.h b/pdf/xpdf/XRef.h
index 3f5a598e9bc058d57d888adb161747793ff879e7..bec487a114756674f828afd31ff071b2b7f0fc16 100644 (file)
--- a/pdf/xpdf/XRef.h
+++ b/pdf/xpdf/XRef.h
@@ -20,15 +20,23 @@
 
 class Dict;
 class Stream;
 
 class Dict;
 class Stream;

+class Parser;
+class ObjectStream;

 
 //------------------------------------------------------------------------
 // XRef
 //------------------------------------------------------------------------
 
 
 //------------------------------------------------------------------------
 // XRef
 //------------------------------------------------------------------------
 

+enum XRefEntryType {
+  xrefEntryFree,
+  xrefEntryUncompressed,
+  xrefEntryCompressed
+};
+

 struct XRefEntry {
   Guint offset;
   int gen;
 struct XRefEntry {
   Guint offset;
   int gen;

-  GBool used;
+  XRefEntryType type;

 };
 
 class XRef {
 };
 
 class XRef {


@@ -103,6 +111,7 @@ private:
   Guint *streamEnds;           // 'endstream' positions - only used in
                                //   damaged files
   int streamEndsLen;           // number of valid entries in streamEnds
   Guint *streamEnds;           // 'endstream' positions - only used in
                                //   damaged files
   int streamEndsLen;           // number of valid entries in streamEnds

+  ObjectStream *objStr;                // cached object stream

 #ifndef NO_DECRYPTION
   GBool encrypted;             // true if file is encrypted
   int encVersion;              // encryption algorithm
 #ifndef NO_DECRYPTION
   GBool encrypted;             // true if file is encrypted
   int encVersion;              // encryption algorithm


@@ -113,8 +122,11 @@ private:
   GBool ownerPasswordOk;       // true if owner password is correct
 #endif
 
   GBool ownerPasswordOk;       // true if owner password is correct
 #endif
 

-  Guint readTrailer();
+  Guint getStartXref();

   GBool readXRef(Guint *pos);
   GBool readXRef(Guint *pos);

+  GBool readXRefTable(Parser *parser, Guint *pos);
+  GBool readXRefStreamSection(Stream *xrefStr, int *w, int first, int n);
+  GBool readXRefStream(Stream *xrefStr, Guint *pos);

   GBool constructXRef();
   GBool checkEncrypted(GString *ownerPassword, GString *userPassword);
   Guint strToUnsigned(char *s);
   GBool constructXRef();
   GBool checkEncrypted(GString *ownerPassword, GString *userPassword);
   Guint strToUnsigned(char *s);