Fix for a number of integer overflow bugs discovered by Chris Evans.

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

diff --git a/pdf/xpdf/Gfx.h b/pdf/xpdf/Gfx.h
index c3c57cf1806d5321574e5d8af3abd0a8413f6442..2069e97abcc07e3a349fc42e890961eef091dd58 100644 (file)
--- a/pdf/xpdf/Gfx.h
+++ b/pdf/xpdf/Gfx.h
@@ -2,7 +2,7 @@
 //
 // Gfx.h
 //
-// Copyright 1996-2002 Glyph & Cog, LLC
+// Copyright 1996-2003 Glyph & Cog, LLC
 //
 //========================================================================
 
@@ -28,10 +28,14 @@ class OutputDev;
 class GfxFontDict;
 class GfxFont;
 class GfxPattern;
+class GfxTilingPattern;
+class GfxShadingPattern;
 class GfxShading;
+class GfxFunctionShading;
 class GfxAxialShading;
 class GfxRadialShading;
 class GfxState;
+struct GfxColor;
 class Gfx;
 class PDFRectangle;
 
@@ -97,8 +101,9 @@ class Gfx {
 public:
 
   // Constructor for regular output.
-  Gfx(XRef *xrefA, OutputDev *outA, int pageNum, Dict *resDict, double dpi,
-      PDFRectangle *box, GBool crop, PDFRectangle *cropBox, int rotate,
+  Gfx(XRef *xrefA, OutputDev *outA, int pageNum, Dict *resDict,
+      double hDPI, double vDPI, PDFRectangle *box, GBool crop,
+      PDFRectangle *cropBox, int rotate,
       GBool (*abortCheckCbkA)(void *data) = NULL,
       void *abortCheckCbkDataA = NULL);
 
@@ -118,8 +123,11 @@ public:
   void doAnnot(Object *str, double xMin, double yMin,
               double xMax, double yMax);
 
-  void pushResources(Dict *resDict);
-  void popResources();
+  // Save graphics state.
+  void saveState();
+
+  // Restore graphics state.
+  void restoreState();
 
 private:
 
@@ -136,6 +144,7 @@ private:
   int ignoreUndef;             // current BX/EX nesting level
   double baseMatrix[6];                // default matrix for most recent
                                //   page/form/pattern
+  int formDepth;
 
   Parser *parser;              // parser for page content stream(s)
 
@@ -198,7 +207,14 @@ private:
   void opEOFillStroke(Object args[], int numArgs);
   void opCloseEOFillStroke(Object args[], int numArgs);
   void doPatternFill(GBool eoFill);
+  void doTilingPatternFill(GfxTilingPattern *tPat, GBool eoFill);
+  void doShadingPatternFill(GfxShadingPattern *sPat, GBool eoFill);
   void opShFill(Object args[], int numArgs);
+  void doFunctionShFill(GfxFunctionShading *shading);
+  void doFunctionShFill1(GfxFunctionShading *shading,
+                        double x0, double y0,
+                        double x1, double y1,
+                        GfxColor *colors, int depth);
   void doAxialShFill(GfxAxialShading *shading);
   void doRadialShFill(GfxRadialShading *shading);
   void doEndPath();
@@ -257,6 +273,9 @@ private:
   void opBeginMarkedContent(Object args[], int numArgs);
   void opEndMarkedContent(Object args[], int numArgs);
   void opMarkPoint(Object args[], int numArgs);
+
+  void pushResources(Dict *resDict);
+  void popResources();
 };
 
 #endif