1 files changed, 98 insertions, 0 deletions
diff --git a/splash/SplashBitmap.h b/splash/SplashBitmap.h
new file mode 100644
index 0000000..54975a3
--- /dev/null
+++ b/splash/SplashBitmap.h
@@ -0,0 +1,98 @@
+//========================================================================
+//
+// SplashBitmap.h
+//
+// Copyright 2003-2013 Glyph & Cog, LLC
+//
+//========================================================================
+
+#ifndef SPLASHBITMAP_H
+#define SPLASHBITMAP_H
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+#include <stdio.h>
+#include <limits.h>
+// older compilers won't define SIZE_MAX in stdint.h without this
+#ifndef __STDC_LIMIT_MACROS
+#  define __STDC_LIMIT_MACROS 1
+#endif
+#include <stdint.h>
+#include "SplashTypes.h"
+
+//------------------------------------------------------------------------
+
+// ssize_t isn't well-defined, so define our own
+#if SIZE_MAX == UINT_MAX
+  typedef int SplashBitmapRowSize;
+# define SplashBitmapRowSizeMax INT_MAX
+#else
+  typedef long long SplashBitmapRowSize;
+# define SplashBitmapRowSizeMax LLONG_MAX
+#endif
+
+//------------------------------------------------------------------------
+// SplashBitmap
+//------------------------------------------------------------------------
+
+class SplashBitmap {
+public:
+
+  // Create a new bitmap.  It will have <widthA> x <heightA> pixels in
+  // color mode <modeA>.  Rows will be padded out to a multiple of
+  // <rowPad> bytes.  If <topDown> is false, the bitmap will be stored
+  // upside-down, i.e., with the last row first in memory.
+  SplashBitmap(int widthA, int heightA, int rowPad,
+	       SplashColorMode modeA, GBool alphaA,
+	       GBool topDown, SplashBitmap *parentA);
+
+  ~SplashBitmap();
+
+  int getWidth() { return width; }
+  int getHeight() { return height; }
+  SplashBitmapRowSize getRowSize() { return rowSize; }
+  size_t getAlphaRowSize() { return alphaRowSize; }
+  SplashColorMode getMode() { return mode; }
+  SplashColorPtr getDataPtr() { return data; }
+  Guchar *getAlphaPtr() { return alpha; }
+
+  SplashError writePNMFile(char *fileName);
+  SplashError writePNMFile(FILE *f);
+  SplashError writeAlphaPGMFile(char *fileName);
+
+  void getPixel(int x, int y, SplashColorPtr pixel);
+  Guchar getAlpha(int x, int y);
+
+  // Caller takes ownership of the bitmap data.  The SplashBitmap
+  // object is no longer valid -- the next call should be to the
+  // destructor.
+  SplashColorPtr takeData();
+
+private:
+
+  int width, height;		// size of bitmap
+  SplashBitmapRowSize rowSize;	// size of one row of data, in bytes
+				//   - negative for bottom-up bitmaps
+  size_t alphaRowSize;		// size of one row of alpha, in bytes
+  SplashColorMode mode;		// color mode
+  SplashColorPtr data;		// pointer to row zero of the color data
+  Guchar *alpha;		// pointer to row zero of the alpha data
+				//   (always top-down)
+
+  // save the last-allocated (large) bitmap data and reuse if possible
+  SplashBitmap *parent;
+  SplashColorPtr oldData;
+  Guchar *oldAlpha;
+  SplashBitmapRowSize oldRowSize;
+  size_t oldAlphaRowSize;
+  int oldHeight;
+
+  friend class Splash;
+};
+
+
+#endif