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//========================================================================
//
// 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>
#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 = gTrue);
~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// object is no longer valid -- the next call should be to the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)
friend class Splash;
};
#endif
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