pdf.c File Reference

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <time.h>
#include <zlib.h>
#include <glib/gstdio.h>
#include "pdf.h"
#include "common/math.h"
#include "common/utility.h"

Include dependency graph for common/pdf.c:

Macros
#define	_XOPEN_SOURCE   700
#define	PACKAGE_STRING   darktable_package_string
#define	SKIP_SPACES(s)   {while(*(s) == ' ')(s)++;}

Functions
int	dt_pdf_parse_length (const char *str, float *length)
int	dt_pdf_parse_paper_size (const char *str, float *width, float *height)
static void	_pdf_set_offset (dt_pdf_t *pdf, int id, size_t offset)
dt_pdf_t *	dt_pdf_start (const char *filename, float width, float height, float dpi, dt_pdf_stream_encoder_t default_encoder)
static size_t	_pdf_stream_encoder_ASCIIHex (dt_pdf_t *pdf, const unsigned char *data, size_t len)
static size_t	_pdf_stream_encoder_Flate (dt_pdf_t *pdf, const unsigned char *data, size_t len)
static size_t	_pdf_write_stream (dt_pdf_t *pdf, dt_pdf_stream_encoder_t encoder, const unsigned char *data, size_t len)
int	dt_pdf_add_icc (dt_pdf_t *pdf, const char *filename)
int	dt_pdf_add_icc_from_data (dt_pdf_t *pdf, const unsigned char *data, size_t size)
dt_pdf_image_t *	dt_pdf_add_image (dt_pdf_t *pdf, const unsigned char *image, int width, int height, int bpp, int icc_id, float border)
dt_pdf_page_t *	dt_pdf_add_page (dt_pdf_t *pdf, dt_pdf_image_t **images, int n_images)
void	dt_pdf_finish (dt_pdf_t *pdf, dt_pdf_page_t **pages, int n_pages)

Variables
static const char *	stream_encoder_filters [] = {"/ASCIIHexDecode", "/FlateDecode"}

Macro Definition Documentation

_XOPEN_SOURCE

#define _XOPEN_SOURCE   700

PACKAGE_STRING

#define PACKAGE_STRING   darktable_package_string

SKIP_SPACES

#define SKIP_SPACES

(

s

)

{while(*(s) == ' ')(s)++;}

Function Documentation

_pdf_set_offset()

static void _pdf_set_offset ( dt_pdf_t *  pdf, int  id, size_t  offset  )

static

References MAX, dt_pdf_t::n_offsets, and dt_pdf_t::offsets.

Referenced by dt_pdf_add_icc_from_data(), dt_pdf_add_image(), dt_pdf_add_page(), dt_pdf_finish(), and dt_pdf_start().

_pdf_stream_encoder_ASCIIHex()

static size_t _pdf_stream_encoder_ASCIIHex ( dt_pdf_t *  pdf, const unsigned char *  data, size_t  len  )

static

Todo:

: maybe OpenMP-ify, it's quite fast already (the fwrite is the slowest part), but wouldn't hurt

References dt_pdf_t::fd.

Referenced by _pdf_write_stream(), and dt_pdf_add_icc_from_data().

_pdf_stream_encoder_Flate()

static size_t _pdf_stream_encoder_Flate ( dt_pdf_t *  pdf, const unsigned char *  data, size_t  len  )

static

References dt_pdf_t::fd.

Referenced by _pdf_write_stream().

_pdf_write_stream()

static size_t _pdf_write_stream ( dt_pdf_t *  pdf, dt_pdf_stream_encoder_t  encoder, const unsigned char *  data, size_t  len  )

static

References _pdf_stream_encoder_ASCIIHex(), _pdf_stream_encoder_Flate(), DT_PDF_STREAM_ENCODER_ASCII_HEX, and DT_PDF_STREAM_ENCODER_FLATE.

Referenced by dt_pdf_add_image().

dt_pdf_add_icc()

int dt_pdf_add_icc	(	dt_pdf_t *	pdf,
		const char *	filename
	)

References dt_pdf_add_icc_from_data(), and dt_read_file().

dt_pdf_add_icc_from_data()

int dt_pdf_add_icc_from_data	(	dt_pdf_t *	pdf,
		const unsigned char *	data,
		size_t	size
	)

References _pdf_set_offset(), _pdf_stream_encoder_ASCIIHex(), dt_pdf_t::bytes_written, dt_pdf_t::fd, dt_pdf_t::next_id, and size.

Referenced by dt_pdf_add_icc(), and write_image().

dt_pdf_add_image()

dt_pdf_image_t * dt_pdf_add_image	(	dt_pdf_t *	pdf,
		const unsigned char *	image,
		int	width,
		int	height,
		int	bpp,
		int	icc_id,
		float	border
	)

Todo:

: allow setting it from the outside

References _pdf_set_offset(), _pdf_write_stream(), dt_pdf_image_t::bb_height, dt_pdf_image_t::bb_width, dt_pdf_image_t::bb_x, dt_pdf_image_t::bb_y, bpp, dt_pdf_t::bytes_written, dt_pdf_t::default_encoder, dt_pdf_t::fd, height, dt_pdf_image_t::height, dt_pdf_image_t::name_id, dt_pdf_t::next_id, dt_pdf_t::next_image, dt_pdf_image_t::object_id, dt_pdf_image_t::outline_mode, dt_pdf_t::page_height, dt_pdf_t::page_width, dt_pdf_image_t::size, stream_encoder_filters, width, and dt_pdf_image_t::width.

Referenced by _create_pdf(), and write_image().

dt_pdf_add_page()

dt_pdf_page_t * dt_pdf_add_page	(	dt_pdf_t *	pdf,
		dt_pdf_image_t **	images,
		int	n_images
	)

References _pdf_set_offset(), dt_pdf_image_t::bb_height, dt_pdf_image_t::bb_width, dt_pdf_image_t::bb_x, dt_pdf_image_t::bb_y, dt_pdf_t::bytes_written, dt_pdf_t::dpi, dt_pdf_t::fd, height, dt_pdf_image_t::height, MIN, dt_pdf_image_t::name_id, dt_pdf_t::next_id, dt_pdf_image_t::object_id, dt_pdf_page_t::object_id, dt_pdf_t::page_height, dt_pdf_t::page_width, dt_pdf_image_t::rotate_to_fit, dt_pdf_page_t::size, width, and dt_pdf_image_t::width.

Referenced by _create_pdf(), and write_image().

dt_pdf_finish()

void dt_pdf_finish	(	dt_pdf_t *	pdf,
		dt_pdf_page_t **	pages,
		int	n_pages
	)

Todo:

find something less necrophilic, maybe hash of image + history? or just of filename + date :)

References _pdf_set_offset(), dt_pdf_t::bytes_written, dt_pdf_t::fd, gmt, dt_pdf_t::next_id, dt_pdf_page_t::object_id, dt_pdf_t::offsets, PACKAGE_STRING, size, and dt_pdf_t::title.

Referenced by _create_pdf(), free_params(), and write_image().

dt_pdf_parse_length()

int dt_pdf_parse_length	(	const char *	str,
		float *	length
	)

References dt_pdf_units, name, and SKIP_SPACES.

Referenced by _paper_size().

dt_pdf_parse_paper_size()

int dt_pdf_parse_paper_size	(	const char *	str,
		float *	width,
		float *	height
	)

References dt_pdf_paper_sizes, dt_pdf_units, FALSE, height, name, SKIP_SPACES, TRUE, and width.

Referenced by _paper_size(), and _set_paper_size().

dt_pdf_start()

dt_pdf_t * dt_pdf_start	(	const char *	filename,
		float	width,
		float	height,
		float	dpi,
		dt_pdf_stream_encoder_t	default_encoder
	)

References _pdf_set_offset(), dt_pdf_t::bytes_written, dt_pdf_t::default_encoder, dt_pdf_t::dpi, dt_pdf_t::fd, height, dt_pdf_t::n_offsets, dt_pdf_t::next_id, dt_pdf_t::next_image, dt_pdf_t::offsets, dt_pdf_t::page_height, dt_pdf_t::page_width, and width.

Referenced by _create_pdf(), and write_image().

Variable Documentation

stream_encoder_filters

const char* stream_encoder_filters[] = {"/ASCIIHexDecode", "/FlateDecode"}

static

Referenced by dt_pdf_add_image().