1 files changed, 95 insertions, 18 deletions

diff --git a/noncore/unsupported/qpdf/xpdf/Stream.h b/noncore/unsupported/qpdf/xpdf/Stream.h
index 1f9c561..3319dcc 100644
--- a/noncore/unsupported/qpdf/xpdf/Stream.h
+++ b/noncore/unsupported/qpdf/xpdf/Stream.h
@@ -4,3 +4,3 @@
 //
-// Copyright 1996 Derek B. Noonburg
+// Copyright 1996-2002 Glyph & Cog, LLC
 //
@@ -80,4 +80,6 @@ public:
 
-  // Go to a position in the stream.
-  virtual void setPos(int pos) = 0;
+  // Go to a position in the stream.  If <dir> is negative, the
+  // position is from the end of the file; otherwise the position is
+  // from the start of the file.
+  virtual void setPos(Guint pos, int dir = 0) = 0;
 
@@ -120,4 +122,5 @@ public:
   virtual ~BaseStream();
-  virtual Stream *makeSubStream(int start, int length, Object *dict) = 0;
-  virtual void setPos(int pos) = 0;
+  virtual Stream *makeSubStream(Guint start, GBool limited,
+                                Guint length, Object *dict) = 0;
+  virtual void setPos(Guint pos, int dir = 0) = 0;
   virtual BaseStream *getBaseStream() { return this; }
@@ -126,3 +129,3 @@ public:
   // Get/set position of first byte of stream within the file.
-  virtual int getStart() = 0;
+  virtual Guint getStart() = 0;
   virtual void moveStart(int delta) = 0;
@@ -131,3 +134,4 @@ public:
   // Set decryption for this stream.
-  void doDecryption(Guchar *fileKey, int keyLength, int objNum, int objGen);
+  virtual void doDecryption(Guchar *fileKey, int keyLength,
+                            int objNum, int objGen);
 #endif
@@ -158,3 +162,3 @@ public:
   virtual int getPos() { return str->getPos(); }
-  virtual void setPos(int pos);
+  virtual void setPos(Guint pos, int dir = 0);
   virtual BaseStream *getBaseStream() { return str->getBaseStream(); }
@@ -244,5 +248,7 @@ public:
 
-  FileStream(FILE *fA, int startA, int lengthA, Object *dictA);
+  FileStream(FILE *fA, Guint startA, GBool limitedA,
+             Guint lengthA, Object *dictA);
   virtual ~FileStream();
-  virtual Stream *makeSubStream(int startA, int lengthA, Object *dictA);
+  virtual Stream *makeSubStream(Guint startA, GBool limitedA,
+                                Guint lengthA, Object *dictA);
   virtual StreamKind getKind() { return strFile; }
@@ -255,5 +261,5 @@ public:
   virtual int getPos() { return bufPos + (bufPtr - buf); }
-  virtual void setPos(int pos);
+  virtual void setPos(Guint pos, int dir = 0);
   virtual GBool isBinary(GBool last = gTrue) { return last; }
-  virtual int getStart() { return start; }
+  virtual Guint getStart() { return start; }
   virtual void moveStart(int delta);
@@ -265,4 +271,5 @@ private:
   FILE *f;
-  int start;
-  int length;
+  Guint start;
+  GBool limited;
+  Guint length;
   char buf[fileStreamBufSize];
@@ -270,4 +277,42 @@ private:
   char *bufEnd;
-  int bufPos;
+  Guint bufPos;
   int savePos;
+  GBool saved;
+};
+
+//------------------------------------------------------------------------
+// MemStream
+//------------------------------------------------------------------------
+
+class MemStream: public BaseStream {
+public:
+
+  MemStream(char *bufA, Guint lengthA, Object *dictA);
+  virtual ~MemStream();
+  virtual Stream *makeSubStream(Guint start, GBool limited,
+                                Guint lengthA, Object *dictA);
+  virtual StreamKind getKind() { return strWeird; }
+  virtual void reset();
+  virtual void close();
+  virtual int getChar()
+    { return (bufPtr < bufEnd) ? (*bufPtr++ & 0xff) : EOF; }
+  virtual int lookChar()
+    { return (bufPtr < bufEnd) ? (*bufPtr & 0xff) : EOF; }
+  virtual int getPos() { return bufPtr - buf; }
+  virtual void setPos(Guint pos, int dir = 0);
+  virtual GBool isBinary(GBool last = gTrue) { return last; }
+  virtual Guint getStart() { return 0; }
+  virtual void moveStart(int delta);
+#ifndef NO_DECRYPTION
+  virtual void doDecryption(Guchar *fileKey, int keyLength,
+                            int objNum, int objGen);
+#endif
+
+private:
+
+  char *buf;
+  Guint length;
+  GBool needFree;
+  char *bufEnd;
+  char *bufPtr;
 };
@@ -289,3 +334,4 @@ public:
   virtual ~EmbedStream();
-  virtual Stream *makeSubStream(int start, int length, Object *dictA);
+  virtual Stream *makeSubStream(Guint start, GBool limited,
+                                Guint length, Object *dictA);
   virtual StreamKind getKind() { return str->getKind(); }
@@ -295,5 +341,5 @@ public:
   virtual int getPos() { return str->getPos(); }
-  virtual void setPos(int pos);
+  virtual void setPos(Guint pos, int dir = 0);
   virtual GBool isBinary(GBool last = gTrue) { return last; }
-  virtual int getStart();
+  virtual Guint getStart();
   virtual void moveStart(int delta);
@@ -661,2 +707,33 @@ private:
 //------------------------------------------------------------------------
+// ASCIIHexEncoder
+//------------------------------------------------------------------------
+
+class ASCIIHexEncoder: public FilterStream {
+public:
+
+  ASCIIHexEncoder(Stream *strA);
+  virtual ~ASCIIHexEncoder();
+  virtual StreamKind getKind() { return strWeird; }
+  virtual void reset();
+  virtual void close();
+  virtual int getChar()
+    { return (bufPtr >= bufEnd && !fillBuf()) ? EOF : (*bufPtr++ & 0xff); }
+  virtual int lookChar()
+    { return (bufPtr >= bufEnd && !fillBuf()) ? EOF : (*bufPtr & 0xff); }
+  virtual GString *getPSFilter(char *indent) { return NULL; }
+  virtual GBool isBinary(GBool last = gTrue) { return gFalse; }
+  virtual GBool isEncoder() { return gTrue; }
+
+private:
+
+  char buf[4];
+  char *bufPtr;
+  char *bufEnd;
+  int lineLen;
+  GBool eof;
+
+  GBool fillBuf();
+};
+
+//------------------------------------------------------------------------
 // ASCII85Encoder