jpeg.c File Reference

#include "bauhaus/bauhaus.h"
#include "common/colorspaces.h"
#include "common/darktable.h"
#include "common/exif.h"
#include "common/imageio.h"
#include "common/imageio_module.h"
#include "control/conf.h"
#include "imageio/format/imageio_format_api.h"
#include <inttypes.h>
#include <setjmp.h>
#include <stdio.h>
#include <stdlib.h>
#include <jpeglib.h>

Include dependency graph for jpeg.c:

Data Structures
struct	dt_imageio_jpeg_t
struct	dt_imageio_jpeg_gui_data_t
struct	dt_imageio_jpeg_error_mgr

Macros
#define	ICC_MARKER   (JPEG_APP0 + 2) /* JPEG marker code for ICC */
#define	ICC_OVERHEAD_LEN   14 /* size of non-profile data in APP2 */
#define	MAX_BYTES_IN_MARKER   65533 /* maximum data len of a JPEG marker */
#define	MAX_DATA_BYTES_IN_MARKER   (MAX_BYTES_IN_MARKER - ICC_OVERHEAD_LEN)

Typedefs
typedef struct dt_imageio_jpeg_t	dt_imageio_jpeg_t
typedef struct dt_imageio_jpeg_gui_data_t	dt_imageio_jpeg_gui_data_t
typedef struct dt_imageio_jpeg_error_mgr *	dt_imageio_jpeg_error_ptr

Functions
static void	dt_imageio_jpeg_error_exit (j_common_ptr cinfo)
static void	write_icc_profile (j_compress_ptr cinfo, const JOCTET *icc_data_ptr, unsigned int icc_data_len)
int	write_image (dt_imageio_module_data_t *jpg_tmp, const char *filename, const void *in_tmp, dt_colorspaces_color_profile_type_t over_type, const char *over_filename, void *exif, int exif_len, int32_t imgid, int num, int total, struct dt_dev_pixelpipe_t *pipe, const gboolean export_masks)
static int	__attribute__ ((__unused__))
int	read_image (dt_imageio_module_data_t *jpg_tmp, uint8_t *out)
size_t	params_size (dt_imageio_module_format_t *self)
void *	legacy_params (dt_imageio_module_format_t *self, const void *const old_params, const size_t old_params_size, const int old_version, const int new_version, size_t *new_size)
void *	get_params (dt_imageio_module_format_t *self)
void	free_params (dt_imageio_module_format_t *self, dt_imageio_module_data_t *params)
int	set_params (dt_imageio_module_format_t *self, const void *params, const int size)
int	bpp (dt_imageio_module_data_t *p)
int	levels (dt_imageio_module_data_t *p)
const char *	mime (dt_imageio_module_data_t *data)
const char *	extension (dt_imageio_module_data_t *data)
int	flags (dt_imageio_module_data_t *data)
void	init (dt_imageio_module_format_t *self)
void	cleanup (dt_imageio_module_format_t *self)
const char *	name ()
static void	quality_changed (GtkWidget *slider, gpointer user_data)
void	gui_init (dt_imageio_module_format_t *self)
void	gui_cleanup (dt_imageio_module_format_t *self)
void	gui_reset (dt_imageio_module_format_t *self)

Variables
struct dt_imageio_jpeg_error_mgr	dt_imageio_jpeg_error_mgr

Macro Definition Documentation

ICC_MARKER

#define ICC_MARKER   (JPEG_APP0 + 2) /* JPEG marker code for ICC */

ICC_OVERHEAD_LEN

#define ICC_OVERHEAD_LEN   14 /* size of non-profile data in APP2 */

MAX_BYTES_IN_MARKER

#define MAX_BYTES_IN_MARKER   65533 /* maximum data len of a JPEG marker */

MAX_DATA_BYTES_IN_MARKER

#define MAX_DATA_BYTES_IN_MARKER   (MAX_BYTES_IN_MARKER - ICC_OVERHEAD_LEN)

Typedef Documentation

dt_imageio_jpeg_error_ptr

typedef struct dt_imageio_jpeg_error_mgr* dt_imageio_jpeg_error_ptr

dt_imageio_jpeg_gui_data_t

typedef struct dt_imageio_jpeg_gui_data_t dt_imageio_jpeg_gui_data_t

dt_imageio_jpeg_t

typedef struct dt_imageio_jpeg_t dt_imageio_jpeg_t

Function Documentation

__attribute__()

static int __attribute__ ( (__unused__)  )

static

References dt_imageio_jpeg_t::dinfo, dt_imageio_jpeg_error_exit(), dt_imageio_jpeg_t::f, dt_imageio_jpeg_t::global, dt_imageio_module_data_t::height, dt_imageio_jpeg_error_mgr::pub, dt_imageio_jpeg_error_mgr::setjmp_buffer, TRUE, and dt_imageio_module_data_t::width.

bpp()

int bpp

(

dt_imageio_module_data_t *

p

)

cleanup()

void cleanup

(

dt_imageio_module_format_t *

self

)

dt_imageio_jpeg_error_exit()

static void dt_imageio_jpeg_error_exit ( j_common_ptr  cinfo )

static

References dt_imageio_jpeg_error_mgr::setjmp_buffer.

Referenced by __attribute__(), read_image(), and write_image().

extension()

const char * extension

(

dt_imageio_module_data_t *

data

)

flags()

int flags

(

dt_imageio_module_data_t *

data

)

References FORMAT_FLAGS_SUPPORT_XMP.

free_params()

void free_params	(	dt_imageio_module_format_t *	self,
		dt_imageio_module_data_t *	params
	)

References dt_free.

get_params()

void * get_params

(

dt_imageio_module_format_t *

self

)

References d, dt_conf_get_int(), and dt_imageio_jpeg_t::quality.

gui_cleanup()

void gui_cleanup

(

dt_imageio_module_format_t *

self

)

References dt_free, and dt_imageio_module_format_t::gui_data.

gui_init()

void gui_init

(

dt_imageio_module_format_t *

self

)

Todo:

: add more options: subsample dreggn

References darktable_t::bauhaus, darktable, dt_bauhaus_slider_new_with_range(), dt_bauhaus_slider_set(), dt_bauhaus_slider_set_default(), dt_bauhaus_widget_set_label(), dt_conf_get_int(), dt_confgen_get_int(), DT_DEFAULT, DT_GUI_MODULE, DT_MAX, DT_MIN, g, dt_imageio_module_format_t::gui_data, quality_changed(), TRUE, and dt_imageio_module_format_t::widget.

gui_reset()

void gui_reset

(

dt_imageio_module_format_t *

self

)

References dt_bauhaus_slider_set(), dt_confgen_get_int(), DT_DEFAULT, g, and dt_imageio_module_format_t::gui_data.

init()

void init

(

dt_imageio_module_format_t *

self

)

References darktable, dt_lua_register_module_member, and darktable_t::lua_state.

legacy_params()

void * legacy_params	(	dt_imageio_module_format_t *	self,
		const void *const	old_params,
		const size_t	old_params_size,
		const int	old_version,
		const int	new_version,
		size_t *	new_size
	)

References f, dt_imageio_jpeg_t::global, height, dt_imageio_module_data_t::max_width, n, and width.

levels()

int levels

(

dt_imageio_module_data_t *

p

)

References IMAGEIO_INT8, and IMAGEIO_RGB.

mime()

const char * mime

(

dt_imageio_module_data_t *

data

)

name()

const char * name

(

)

params_size()

size_t params_size

(

dt_imageio_module_format_t *

self

)

quality_changed()

static void quality_changed ( GtkWidget *  slider, gpointer  user_data  )

static

References dt_bauhaus_slider_get(), and dt_conf_set_int().

Referenced by gui_init().

read_image()

int read_image	(	dt_imageio_module_data_t *	jpg_tmp,
		uint8_t *	out
	)

References dt_imageio_jpeg_t::dinfo, dt_imageio_jpeg_error_exit(), dt_pixelpipe_cache_alloc_align_cache, dt_pixelpipe_cache_free_align, dt_imageio_jpeg_t::f, dt_imageio_jpeg_t::global, i, out, dt_imageio_jpeg_error_mgr::pub, dt_imageio_jpeg_error_mgr::setjmp_buffer, void(), and dt_imageio_module_data_t::width.

set_params()

int set_params	(	dt_imageio_module_format_t *	self,
		const void *	params,
		const int	size
	)

References d, dt_bauhaus_slider_set(), g, dt_imageio_module_format_t::gui_data, and size.

write_icc_profile()

static void write_icc_profile ( j_compress_ptr  cinfo, const JOCTET *  icc_data_ptr, unsigned int  icc_data_len  )

static

References ICC_MARKER, ICC_OVERHEAD_LEN, and MAX_DATA_BYTES_IN_MARKER.

Referenced by write_image().

write_image()

int write_image	(	dt_imageio_module_data_t *	jpg_tmp,
		const char *	filename,
		const void *	in_tmp,
		dt_colorspaces_color_profile_type_t	over_type,
		const char *	over_filename,
		void *	exif,
		int	exif_len,
		int32_t	imgid,
		int	num,
		int	total,
		struct dt_dev_pixelpipe_t *	pipe,
		const gboolean	export_masks
	)

References dt_imageio_jpeg_t::cinfo, dt_colorspaces_get_output_profile(), dt_conf_get_int(), dt_exif_write_blob(), dt_free, dt_imageio_jpeg_error_exit(), dt_pixelpipe_cache_alloc_align_cache, dt_pixelpipe_cache_free_align, f, dt_imageio_jpeg_t::global, dt_imageio_module_data_t::height, i, dt_colorspaces_color_profile_t::profile, dt_imageio_jpeg_error_mgr::pub, dt_imageio_jpeg_t::quality, row, dt_imageio_jpeg_error_mgr::setjmp_buffer, TRUE, dt_imageio_module_data_t::width, and write_icc_profile().

Variable Documentation

dt_imageio_jpeg_error_mgr

struct dt_imageio_jpeg_error_mgr dt_imageio_jpeg_error_mgr