154 lines
5.3 KiB
C
154 lines
5.3 KiB
C
#ifndef MUPDF_FITZ_OUTPUT_H
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#define MUPDF_FITZ_OUTPUT_H
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#include "mupdf/fitz/system.h"
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#include "mupdf/fitz/context.h"
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#include "mupdf/fitz/buffer.h"
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#include "mupdf/fitz/string-util.h"
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#include "mupdf/fitz/stream.h"
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/*
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Generic output streams - generalise between outputting to a file,
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a buffer, etc.
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*/
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typedef struct fz_output_s fz_output;
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/*
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A function type for use when implementing
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fz_outputs. The supplied function of this type is called
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whenever data is written to the output.
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state: The state for the output stream.
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data: a pointer to a buffer of data to write.
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n: The number of bytes of data to write.
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*/
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typedef void (fz_output_write_fn)(fz_context *ctx, void *state, const void *data, size_t n);
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/*
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A function type for use when implementing
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fz_outputs. The supplied function of this type is called when
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fz_seek_output is requested.
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state: The output stream state to seek within.
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offset, whence: as defined for fs_seek_output.
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*/
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typedef void (fz_output_seek_fn)(fz_context *ctx, void *state, int64_t offset, int whence);
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/*
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A function type for use when implementing
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fz_outputs. The supplied function of this type is called when
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fz_tell_output is requested.
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state: The output stream state to report on.
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Returns the offset within the output stream.
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*/
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typedef int64_t (fz_output_tell_fn)(fz_context *ctx, void *state);
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/*
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A function type for use when implementing
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fz_outputs. The supplied function of this type is called
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when the output stream is closed, to flush any pending writes.
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*/
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typedef void (fz_output_close_fn)(fz_context *ctx, void *state);
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/*
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A function type for use when implementing
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fz_outputs. The supplied function of this type is called
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when the output stream is dropped, to release the stream specific
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state information.
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*/
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typedef void (fz_output_drop_fn)(fz_context *ctx, void *state);
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/*
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A function type for use when implementing
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fz_outputs. The supplied function of this type is called
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when the fz_stream_from_output is called.
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*/
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typedef fz_stream *(fz_stream_from_output_fn)(fz_context *ctx, void *state);
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struct fz_output_s
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{
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void *state;
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fz_output_write_fn *write;
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fz_output_seek_fn *seek;
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fz_output_tell_fn *tell;
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fz_output_close_fn *close;
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fz_output_drop_fn *drop;
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fz_stream_from_output_fn *as_stream;
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char *bp, *wp, *ep;
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};
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fz_output *fz_new_output(fz_context *ctx, int bufsiz, void *state, fz_output_write_fn *write, fz_output_close_fn *close, fz_output_drop_fn *drop);
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fz_output *fz_new_output_with_path(fz_context *, const char *filename, int append);
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fz_output *fz_new_output_with_buffer(fz_context *ctx, fz_buffer *buf);
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fz_output *fz_stdout(fz_context *ctx);
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fz_output *fz_stderr(fz_context *ctx);
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void fz_set_stdout(fz_context *ctx, fz_output *out);
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void fz_set_stderr(fz_context *ctx, fz_output *err);
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void fz_write_printf(fz_context *ctx, fz_output *out, const char *fmt, ...);
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void fz_write_vprintf(fz_context *ctx, fz_output *out, const char *fmt, va_list ap);
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void fz_seek_output(fz_context *ctx, fz_output *out, int64_t off, int whence);
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int64_t fz_tell_output(fz_context *ctx, fz_output *out);
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void fz_flush_output(fz_context *ctx, fz_output *out);
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void fz_close_output(fz_context *, fz_output *);
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void fz_drop_output(fz_context *, fz_output *);
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fz_stream *fz_stream_from_output(fz_context *, fz_output *);
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void fz_write_data(fz_context *ctx, fz_output *out, const void *data, size_t size);
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void fz_write_string(fz_context *ctx, fz_output *out, const char *s);
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void fz_write_int32_be(fz_context *ctx, fz_output *out, int x);
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void fz_write_int32_le(fz_context *ctx, fz_output *out, int x);
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void fz_write_uint32_be(fz_context *ctx, fz_output *out, unsigned int x);
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void fz_write_uint32_le(fz_context *ctx, fz_output *out, unsigned int x);
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void fz_write_int16_be(fz_context *ctx, fz_output *out, int x);
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void fz_write_int16_le(fz_context *ctx, fz_output *out, int x);
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void fz_write_uint16_be(fz_context *ctx, fz_output *out, unsigned int x);
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void fz_write_uint16_le(fz_context *ctx, fz_output *out, unsigned int x);
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void fz_write_char(fz_context *ctx, fz_output *out, char x);
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void fz_write_byte(fz_context *ctx, fz_output *out, unsigned char x);
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void fz_write_float_be(fz_context *ctx, fz_output *out, float f);
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void fz_write_float_le(fz_context *ctx, fz_output *out, float f);
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void fz_write_rune(fz_context *ctx, fz_output *out, int rune);
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void fz_write_base64(fz_context *ctx, fz_output *out, const unsigned char *data, int size, int newline);
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void fz_write_base64_buffer(fz_context *ctx, fz_output *out, fz_buffer *data, int newline);
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void fz_format_string(fz_context *ctx, void *user, void (*emit)(fz_context *ctx, void *user, int c), const char *fmt, va_list args);
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size_t fz_vsnprintf(char *buffer, size_t space, const char *fmt, va_list args);
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size_t fz_snprintf(char *buffer, size_t space, const char *fmt, ...);
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char *fz_asprintf(fz_context *ctx, const char *fmt, ...);
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void fz_save_buffer(fz_context *ctx, fz_buffer *buf, const char *filename);
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fz_output *fz_new_asciihex_output(fz_context *ctx, fz_output *chain);
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fz_output *fz_new_ascii85_output(fz_context *ctx, fz_output *chain);
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fz_output *fz_new_rle_output(fz_context *ctx, fz_output *chain);
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fz_output *fz_new_arc4_output(fz_context *ctx, fz_output *chain, unsigned char *key, size_t keylen);
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fz_output *fz_new_deflate_output(fz_context *ctx, fz_output *chain, int effort, int raw);
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#endif
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