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tiffload.c
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tiffload.c
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/* load tiff from a file
*
* 5/12/11
* - from tiffload.c
* 27/1/17
* - add get_flags for buffer loader
*/
/*
This file is part of VIPS.
VIPS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
/*
#define DEBUG
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <glib/gi18n-lib.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <vips/vips.h>
#include <vips/buf.h>
#include <vips/internal.h>
#include "pforeign.h"
#ifdef HAVE_TIFF
typedef struct _VipsForeignLoadTiff {
VipsForeignLoad parent_object;
/* Set by subclasses.
*/
VipsSource *source;
/* Load this page.
*/
int page;
/* Load this many pages.
*/
int n;
/* Select subifd index. -1 for main image.
*/
int subifd;
/* Autorotate using orientation tag.
*/
gboolean autorotate;
} VipsForeignLoadTiff;
typedef VipsForeignLoadClass VipsForeignLoadTiffClass;
G_DEFINE_ABSTRACT_TYPE(VipsForeignLoadTiff, vips_foreign_load_tiff,
VIPS_TYPE_FOREIGN_LOAD);
static void
vips_foreign_load_tiff_dispose(GObject *gobject)
{
VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) gobject;
VIPS_UNREF(tiff->source);
G_OBJECT_CLASS(vips_foreign_load_tiff_parent_class)->dispose(gobject);
}
static VipsForeignFlags
vips_foreign_load_tiff_get_flags_source(VipsSource *source)
{
VipsForeignFlags flags;
flags = 0;
if (vips__istifftiled_source(source))
flags |= VIPS_FOREIGN_PARTIAL;
else
flags |= VIPS_FOREIGN_SEQUENTIAL;
return flags;
}
static VipsForeignFlags
vips_foreign_load_tiff_get_flags_filename(const char *filename)
{
VipsSource *source;
VipsForeignFlags flags;
if (!(source = vips_source_new_from_file(filename)))
return 0;
flags = vips_foreign_load_tiff_get_flags_source(source);
VIPS_UNREF(source);
return flags;
}
static VipsForeignFlags
vips_foreign_load_tiff_get_flags(VipsForeignLoad *load)
{
VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) load;
return vips_foreign_load_tiff_get_flags_source(tiff->source);
}
static int
vips_foreign_load_tiff_header(VipsForeignLoad *load)
{
VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) load;
if (vips__tiff_read_header_source(tiff->source, load->out,
tiff->page, tiff->n, tiff->autorotate, tiff->subifd,
load->fail_on))
return -1;
return 0;
}
static int
vips_foreign_load_tiff_load(VipsForeignLoad *load)
{
VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) load;
if (vips__tiff_read_source(tiff->source, load->real,
tiff->page, tiff->n, tiff->autorotate, tiff->subifd,
load->fail_on))
return -1;
return 0;
}
static void
vips_foreign_load_tiff_class_init(VipsForeignLoadTiffClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS(class);
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
VipsForeignLoadClass *load_class = (VipsForeignLoadClass *) class;
/* Other libraries may be using libtiff, we want to capture tiff
* warning and error as soon as we can.
*
* This class init will be triggered during startup.
*/
vips__tiff_init();
gobject_class->dispose = vips_foreign_load_tiff_dispose;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "tiffload_base";
object_class->description = _("load tiff");
/* We are fast, but must test after openslideload.
*/
foreign_class->priority = 50;
load_class->get_flags_filename =
vips_foreign_load_tiff_get_flags_filename;
load_class->get_flags = vips_foreign_load_tiff_get_flags;
load_class->header = vips_foreign_load_tiff_header;
load_class->load = vips_foreign_load_tiff_load;
VIPS_ARG_INT(class, "page", 20,
_("Page"),
_("First page to load"),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET(VipsForeignLoadTiff, page),
0, 100000, 0);
VIPS_ARG_INT(class, "n", 21,
_("n"),
_("Number of pages to load, -1 for all"),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET(VipsForeignLoadTiff, n),
-1, 100000, 1);
VIPS_ARG_BOOL(class, "autorotate", 22,
_("Autorotate"),
_("Rotate image using orientation tag"),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET(VipsForeignLoadTiff, autorotate),
FALSE);
VIPS_ARG_INT(class, "subifd", 21,
_("subifd"),
_("Subifd index"),
VIPS_ARGUMENT_OPTIONAL_INPUT,
G_STRUCT_OFFSET(VipsForeignLoadTiff, subifd),
-1, 100000, -1);
}
static void
vips_foreign_load_tiff_init(VipsForeignLoadTiff *tiff)
{
tiff->page = 0;
tiff->n = 1;
tiff->subifd = -1;
}
typedef struct _VipsForeignLoadTiffSource {
VipsForeignLoadTiff parent_object;
/* Load from a source.
*/
VipsSource *source;
} VipsForeignLoadTiffSource;
typedef VipsForeignLoadTiffClass VipsForeignLoadTiffSourceClass;
G_DEFINE_TYPE(VipsForeignLoadTiffSource, vips_foreign_load_tiff_source,
vips_foreign_load_tiff_get_type());
static int
vips_foreign_load_tiff_source_build(VipsObject *object)
{
VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) object;
VipsForeignLoadTiffSource *source =
(VipsForeignLoadTiffSource *) object;
if (source->source) {
tiff->source = source->source;
g_object_ref(tiff->source);
}
if (VIPS_OBJECT_CLASS(vips_foreign_load_tiff_source_parent_class)
->build(object))
return -1;
return 0;
}
static gboolean
vips_foreign_load_tiff_source_is_a_source(VipsSource *source)
{
return vips__istiff_source(source);
}
static void
vips_foreign_load_tiff_source_class_init(
VipsForeignLoadTiffSourceClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS(class);
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsOperationClass *operation_class = VIPS_OPERATION_CLASS(class);
VipsForeignLoadClass *load_class = (VipsForeignLoadClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "tiffload_source";
object_class->description = _("load tiff from source");
object_class->build = vips_foreign_load_tiff_source_build;
operation_class->flags |= VIPS_OPERATION_NOCACHE;
load_class->is_a_source = vips_foreign_load_tiff_source_is_a_source;
VIPS_ARG_OBJECT(class, "source", 1,
_("Source"),
_("Source to load from"),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET(VipsForeignLoadTiffSource, source),
VIPS_TYPE_SOURCE);
}
static void
vips_foreign_load_tiff_source_init(VipsForeignLoadTiffSource *source)
{
}
typedef struct _VipsForeignLoadTiffFile {
VipsForeignLoadTiff parent_object;
/* Filename for load.
*/
char *filename;
} VipsForeignLoadTiffFile;
typedef VipsForeignLoadTiffClass VipsForeignLoadTiffFileClass;
G_DEFINE_TYPE(VipsForeignLoadTiffFile, vips_foreign_load_tiff_file,
vips_foreign_load_tiff_get_type());
static int
vips_foreign_load_tiff_file_build(VipsObject *object)
{
VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) object;
VipsForeignLoadTiffFile *file = (VipsForeignLoadTiffFile *) object;
if (file->filename &&
!(tiff->source =
vips_source_new_from_file(file->filename)))
return -1;
if (VIPS_OBJECT_CLASS(vips_foreign_load_tiff_file_parent_class)
->build(object))
return -1;
return 0;
}
static gboolean
vips_foreign_load_tiff_file_is_a(const char *filename)
{
VipsSource *source;
gboolean result;
if (!(source = vips_source_new_from_file(filename)))
return FALSE;
result = vips_foreign_load_tiff_source_is_a_source(source);
VIPS_UNREF(source);
return result;
}
const char *vips__foreign_tiff_suffs[] = { ".tif", ".tiff", NULL };
static void
vips_foreign_load_tiff_file_class_init(VipsForeignLoadTiffFileClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS(class);
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignClass *foreign_class = (VipsForeignClass *) class;
VipsForeignLoadClass *load_class = (VipsForeignLoadClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "tiffload";
object_class->description = _("load tiff from file");
object_class->build = vips_foreign_load_tiff_file_build;
foreign_class->suffs = vips__foreign_tiff_suffs;
load_class->is_a = vips_foreign_load_tiff_file_is_a;
VIPS_ARG_STRING(class, "filename", 1,
_("Filename"),
_("Filename to load from"),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET(VipsForeignLoadTiffFile, filename),
NULL);
}
static void
vips_foreign_load_tiff_file_init(VipsForeignLoadTiffFile *file)
{
}
typedef struct _VipsForeignLoadTiffBuffer {
VipsForeignLoadTiff parent_object;
/* Load from a buffer.
*/
VipsBlob *blob;
} VipsForeignLoadTiffBuffer;
typedef VipsForeignLoadTiffClass VipsForeignLoadTiffBufferClass;
G_DEFINE_TYPE(VipsForeignLoadTiffBuffer, vips_foreign_load_tiff_buffer,
vips_foreign_load_tiff_get_type());
static int
vips_foreign_load_tiff_buffer_build(VipsObject *object)
{
VipsForeignLoadTiff *tiff = (VipsForeignLoadTiff *) object;
VipsForeignLoadTiffBuffer *buffer =
(VipsForeignLoadTiffBuffer *) object;
if (buffer->blob &&
!(tiff->source = vips_source_new_from_memory(
VIPS_AREA(buffer->blob)->data,
VIPS_AREA(buffer->blob)->length)))
return -1;
if (VIPS_OBJECT_CLASS(vips_foreign_load_tiff_buffer_parent_class)
->build(object))
return -1;
return 0;
}
static gboolean
vips_foreign_load_tiff_buffer_is_a_buffer(const void *buf, size_t len)
{
VipsSource *source;
gboolean result;
if (!(source = vips_source_new_from_memory(buf, len)))
return FALSE;
result = vips_foreign_load_tiff_source_is_a_source(source);
VIPS_UNREF(source);
return result;
}
static void
vips_foreign_load_tiff_buffer_class_init(
VipsForeignLoadTiffBufferClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS(class);
VipsObjectClass *object_class = (VipsObjectClass *) class;
VipsForeignLoadClass *load_class = (VipsForeignLoadClass *) class;
gobject_class->set_property = vips_object_set_property;
gobject_class->get_property = vips_object_get_property;
object_class->nickname = "tiffload_buffer";
object_class->description = _("load tiff from buffer");
object_class->build = vips_foreign_load_tiff_buffer_build;
load_class->is_a_buffer = vips_foreign_load_tiff_buffer_is_a_buffer;
VIPS_ARG_BOXED(class, "buffer", 1,
_("Buffer"),
_("Buffer to load from"),
VIPS_ARGUMENT_REQUIRED_INPUT,
G_STRUCT_OFFSET(VipsForeignLoadTiffBuffer, blob),
VIPS_TYPE_BLOB);
}
static void
vips_foreign_load_tiff_buffer_init(VipsForeignLoadTiffBuffer *buffer)
{
}
#endif /*HAVE_TIFF*/
/**
* vips_tiffload:
* @filename: file to load
* @out: (out): decompressed image
* @...: %NULL-terminated list of optional named arguments
*
* Optional arguments:
*
* * @page: %gint, load this page
* * @n: %gint, load this many pages
* * @autorotate: %gboolean, use orientation tag to rotate the image
* during load
* * @subifd: %gint, select this subifd index
*
* Read a TIFF file into a VIPS image. It is a full baseline TIFF 6 reader,
* with extensions for tiled images, multipage images, XYZ and LAB colour
* space, pyramidal images and JPEG compression, including CMYK and YCbCr.
*
* @page means load this page from the file. By default the first page (page
* 0) is read.
*
* @n means load this many pages. By default a single page is read. All the
* pages must have the same dimensions, and they are loaded as a tall, thin
* "toilet roll" image. The #VIPS_META_PAGE_HEIGHT metadata
* tag gives the height in pixels of each page. Use -1 to load all pages.
*
* Setting @autorotate to %TRUE will make the loader interpret the
* orientation tag and automatically rotate the image appropriately during
* load.
*
* If @autorotate is %FALSE, the metadata field #VIPS_META_ORIENTATION is set
* to the value of the orientation tag. Applications may read and interpret
* this field
* as they wish later in processing. See vips_autorot(). Save
* operations will use #VIPS_META_ORIENTATION, if present, to set the
* orientation of output images.
*
* If @autorotate is TRUE, the image will be rotated upright during load and
* no metadata attached. This can be very slow.
*
* If @subifd is -1 (the default), the main image is selected for each page.
* If it is 0 or greater and there is a SUBIFD tag, the indexed SUBIFD is
* selected. This can be used to read lower resolution layers from
* bioformats-style image pyramids.
*
* Any ICC profile is read and attached to the VIPS image as
* #VIPS_META_ICC_NAME. Any XMP metadata is read and attached to the image
* as #VIPS_META_XMP_NAME. Any IPTC is attached as #VIPS_META_IPTC_NAME. The
* image description is
* attached as #VIPS_META_IMAGEDESCRIPTION. Data in the photoshop tag is
* attached as #VIPS_META_PHOTOSHOP_NAME.
*
* See also: vips_image_new_from_file(), vips_autorot().
*
* Returns: 0 on success, -1 on error.
*/
int
vips_tiffload(const char *filename, VipsImage **out, ...)
{
va_list ap;
int result;
va_start(ap, out);
result = vips_call_split("tiffload", ap, filename, out);
va_end(ap);
return result;
}
/**
* vips_tiffload_buffer:
* @buf: (array length=len) (element-type guint8): memory area to load
* @len: (type gsize): size of memory area
* @out: (out): image to write
* @...: %NULL-terminated list of optional named arguments
*
* Optional arguments:
*
* * @page: %gint, load this page
* * @n: %gint, load this many pages
* * @autorotate: %gboolean, use orientation tag to rotate the image
* during load
* * @subifd: %gint, select this subifd index
*
* Read a TIFF-formatted memory block into a VIPS image. Exactly as
* vips_tiffload(), but read from a memory source.
*
* You must not free the buffer while @out is active. The
* #VipsObject::postclose signal on @out is a good place to free.
*
* See also: vips_tiffload().
*
* Returns: 0 on success, -1 on error.
*/
int
vips_tiffload_buffer(void *buf, size_t len, VipsImage **out, ...)
{
va_list ap;
VipsBlob *blob;
int result;
/* We don't take a copy of the data or free it.
*/
blob = vips_blob_new(NULL, buf, len);
va_start(ap, out);
result = vips_call_split("tiffload_buffer", ap, blob, out);
va_end(ap);
vips_area_unref(VIPS_AREA(blob));
return result;
}
/**
* vips_tiffload_source:
* @source: source to load
* @out: (out): image to write
* @...: %NULL-terminated list of optional named arguments
*
* Optional arguments:
*
* * @page: %gint, load this page
* * @n: %gint, load this many pages
* * @autorotate: %gboolean, use orientation tag to rotate the image
* during load
* * @subifd: %gint, select this subifd index
*
* Exactly as vips_tiffload(), but read from a source.
*
* See also: vips_tiffload().
*
* Returns: 0 on success, -1 on error.
*/
int
vips_tiffload_source(VipsSource *source, VipsImage **out, ...)
{
va_list ap;
int result;
va_start(ap, out);
result = vips_call_split("tiffload_source", ap, source, out);
va_end(ap);
return result;
}