/usr/include/mupdf/fitz/output-png.h is in libmupdf-dev 1.5-1+deb8u4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 | #ifndef MUPDF_FITZ_OUTPUT_PNG_H
#define MUPDF_FITZ_OUTPUT_PNG_H
#include "mupdf/fitz/system.h"
#include "mupdf/fitz/context.h"
#include "mupdf/fitz/output.h"
#include "mupdf/fitz/pixmap.h"
#include "mupdf/fitz/bitmap.h"
#include "mupdf/fitz/buffer.h"
#include "mupdf/fitz/image.h"
/*
fz_write_png: Save a pixmap as a png
filename: The filename to save as (including extension).
*/
void fz_write_png(fz_context *ctx, fz_pixmap *pixmap, char *filename, int savealpha);
/*
Output a pixmap to an output stream as a png.
*/
void fz_output_png(fz_output *out, const fz_pixmap *pixmap, int savealpha);
/*
Get an image as a png in a buffer.
*/
fz_buffer *fz_new_png_from_image(fz_context *ctx, fz_image *image, int w, int h);
fz_buffer *fz_new_png_from_pixmap(fz_context *ctx, fz_pixmap *pixmap);
typedef struct fz_png_output_context_s fz_png_output_context;
fz_png_output_context *fz_output_png_header(fz_output *out, int w, int h, int n, int savealpha);
void fz_output_png_band(fz_output *out, int w, int h, int n, int band, int bandheight, unsigned char *samples, int savealpha, fz_png_output_context *poc);
void fz_output_png_trailer(fz_output *out, fz_png_output_context *poc);
#endif
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