gtk/gdk-pixbuf/io-tiff.c
Havoc Pennington e0fee22e78 Add built marshaller files to support GdkPixbufLoader signals
2001-01-22  Havoc Pennington  <hp@redhat.com>

	* Makefile.am: Add built marshaller files to support
	GdkPixbufLoader signals

	* gdk-pixbuf-io.c (gdk_pixbuf_load_module): have
	GDK_PIXBUF_MODULEDIR unconditionally replace the compiled-in
	module location, rather than acting as a fallback, because we are
	using GDK_PIXBUF_MODULEDIR to use gdk-pixbuf before installing it.

	* gdk-pixbuf.h: include gdk-pixbuf-loader.h

        * gdk-pixbuf-loader.h, gdk-pixbuf-loader.c: Move back over here
	from gtk, and add error to close(), because stop_load may do
	parsing of the image.

	* pixops/have_mmx.S (_pixops_have_mmx): add newline at end of file

        * io-*.c: make individual operations static, and add fill_vtable
	functions which are exported. Fix the collection of type warnings
	that surfaced, including a number of functions that didn't
	properly take a GError and some that weren't
	const-correct. Involved adding error handling for a few loaders.

	* gdk-pixbuf-io.h: Add error reporting to stop_load function

	* gdk-pixbuf-io.c (gdk_pixbuf_load_module): change to just look up
	a function that fills in the GdkPixbufModule vtable, instead of
	looking up all the image functions individually; this means we
	can get type safety within modules for the loader functions.
	Also it means you don't have to keep the statically compiled and
	GModule versions in sync.

	* test-gdk-pixbuf.c (main): remove gdk_pixbuf_init()

	* make-inline-pixbuf.c (main): remove call to gdk_pixbuf_init()

	* gdk-pixbuf.h: nuke gdk_pixbuf_init()

	* gdk-pixbuf-animation.c (gdk_pixbuf_frame_get_type): g_type_init
	() here

	* gdk-pixbuf.c (gdk_pixbuf_get_type): g_type_init () here

	* gdk-pixbuf-animation.c (gdk_pixbuf_animation_get_type):
	g_type_init() here


2001-01-22  Havoc Pennington  <hp@redhat.com>

	* demos/testanimation.c: fix to reflect gdk-pixbuf changes

	* demos/testpixbuf.c: fix to reflect gdk-pixbuf changes

	* gtk/gdk-pixbuf-loader.c, gtk/gdk-pixbuf-loader.h:
	Remove, move back to gdk-pixbuf

	* gtk/gtktextiter.c, gtk/gtktextiter.h: add sentence equivalents
	to all the word functions

	* gtk/gtktextview.c (gtk_text_view_start_cursor_blink): return
	before doing anything on NULL layout or if we don't have the focus

	* gtk/testtext.c (fill_example_buffer): "justification"

	* gtk/gtktexttag.h, gtk/gtktexttag.c: change the tag attribute
	to be called "justification" not "justify"

	* demos/gtk-demo/textview.c (create_tags): "justification"

	* gtk/gtktextlayout.c (set_para_values): Handle char-wise wrapping
2001-01-22 23:09:48 +00:00

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/* GdkPixbuf library - TIFF image loader
*
* Copyright (C) 1999 Mark Crichton
* Copyright (C) 1999 The Free Software Foundation
*
* Authors: Mark Crichton <crichton@gimp.org>
* Federico Mena-Quintero <federico@gimp.org>
* Jonathan Blandford <jrb@redhat.com>
*
* This library 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 library 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 library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/* Following code (almost) blatantly ripped from Imlib */
#include <config.h>
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <tiffio.h>
#include <errno.h>
#include "gdk-pixbuf-private.h"
#include "gdk-pixbuf-io.h"
#ifdef G_OS_WIN32
#include <fcntl.h>
#define O_RDWR _O_RDWR
#endif
typedef struct _TiffData TiffData;
struct _TiffData
{
ModulePreparedNotifyFunc prepare_func;
ModuleUpdatedNotifyFunc update_func;
gpointer user_data;
gchar *tempname;
FILE *file;
gboolean all_okay;
};
static GdkPixbuf *
gdk_pixbuf__tiff_image_load_real (FILE *f, TiffData *context, GError **error)
{
TIFF *tiff;
guchar *pixels = NULL;
guchar *tmppix;
gint w, h, x, y, num_pixs, fd;
uint32 *rast, *tmp_rast;
GdkPixbuf *pixbuf;
fd = fileno (f);
tiff = TIFFFdOpen (fd, "libpixbuf-tiff", "r");
if (!tiff) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
_("Failed to open TIFF image"));
return NULL;
}
TIFFGetField (tiff, TIFFTAG_IMAGEWIDTH, &w);
TIFFGetField (tiff, TIFFTAG_IMAGELENGTH, &h);
num_pixs = w * h;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, w, h);
if (!pixbuf) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
_("Insufficient memory to open TIFF file"));
TIFFClose (tiff);
return NULL;
}
if (context)
(* context->prepare_func) (pixbuf, context->user_data);
/* Yes, it needs to be _TIFFMalloc... */
rast = (uint32 *) _TIFFmalloc (num_pixs * sizeof (uint32));
if (!rast) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
_("Insufficient memory to open TIFF file"));
TIFFClose (tiff);
return NULL;
}
if (TIFFReadRGBAImage (tiff, w, h, rast, 0)) {
pixels = gdk_pixbuf_get_pixels (pixbuf);
g_assert (pixels);
tmppix = pixels;
for (y = 0; y < h; y++) {
/* Unexplainable...are tiffs backwards? */
/* Also looking at the GIMP plugin, this
* whole reading thing can be a bit more
* robust.
*/
tmp_rast = rast + ((h - y - 1) * w);
for (x = 0; x < w; x++) {
tmppix[0] = TIFFGetR (*tmp_rast);
tmppix[1] = TIFFGetG (*tmp_rast);
tmppix[2] = TIFFGetB (*tmp_rast);
tmppix[3] = TIFFGetA (*tmp_rast);
tmp_rast++;
tmppix += 4;
}
}
}
_TIFFfree (rast);
TIFFClose (tiff);
if (context) {
(* context->update_func) (pixbuf, 0, 0, w, h, context->user_data);
gdk_pixbuf_unref (pixbuf);
}
return pixbuf;
}
/* Static loader */
static GdkPixbuf *
gdk_pixbuf__tiff_image_load (FILE *f, GError **error)
{
return gdk_pixbuf__tiff_image_load_real (f, NULL, error);
}
/* Progressive loader */
/*
* Tiff loading progressively cannot be done. We write it to a file, then load
* the file when it's done. It's not pretty.
*/
static gpointer
gdk_pixbuf__tiff_image_begin_load (ModulePreparedNotifyFunc prepare_func,
ModuleUpdatedNotifyFunc update_func,
ModuleFrameDoneNotifyFunc frame_done_func,
ModuleAnimationDoneNotifyFunc anim_done_func,
gpointer user_data,
GError **error)
{
TiffData *context;
gint fd;
context = g_new (TiffData, 1);
context->prepare_func = prepare_func;
context->update_func = update_func;
context->user_data = user_data;
context->all_okay = TRUE;
fd = g_file_open_tmp ("gdkpixbuf-tif-tmp.XXXXXX", &context->tempname,
NULL);
if (fd < 0) {
g_free (context);
return NULL;
}
context->file = fdopen (fd, "w");
if (context->file == NULL) {
g_free (context->tempname);
g_free (context);
return NULL;
}
return context;
}
static gboolean
gdk_pixbuf__tiff_image_stop_load (gpointer data,
GError **error)
{
TiffData *context = (TiffData*) data;
gboolean retval = FALSE;
g_return_val_if_fail (data != NULL, TRUE);
fflush (context->file);
rewind (context->file);
if (context->all_okay) {
GdkPixbuf *pixbuf;
pixbuf = gdk_pixbuf__tiff_image_load_real (context->file, context, error);
if (pixbuf != NULL)
retval = TRUE;
}
fclose (context->file);
unlink (context->tempname);
g_free (context->tempname);
g_free ((TiffData *) context);
return TRUE;
}
static gboolean
gdk_pixbuf__tiff_image_load_increment (gpointer data, const guchar *buf,
guint size, GError **error)
{
TiffData *context = (TiffData *) data;
g_return_val_if_fail (data != NULL, FALSE);
if (fwrite (buf, sizeof (guchar), size, context->file) != size) {
context->all_okay = FALSE;
g_set_error (error,
G_FILE_ERROR,
g_file_error_from_errno (errno),
_("Failed to write to temporary file when loading TIFF image"));
return FALSE;
}
return TRUE;
}
void
gdk_pixbuf__tiff_fill_vtable (GdkPixbufModule *module)
{
module->load = gdk_pixbuf__tiff_image_load;
module->begin_load = gdk_pixbuf__tiff_image_begin_load;
module->stop_load = gdk_pixbuf__tiff_image_stop_load;
module->load_increment = gdk_pixbuf__tiff_image_load_increment;
}