gtk2/gdk-pixbuf/io-jpeg.c

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/* -*- mode: C; c-file-style: "linux" -*- */
/* GdkPixbuf library - JPEG image loader
*
* Copyright (C) 1999 Michael Zucchi
* Copyright (C) 1999 The Free Software Foundation
*
* Progressive loading code Copyright (C) 1999 Red Hat, Inc.
*
* Authors: Michael Zucchi <zucchi@zedzone.mmc.com.au>
* Federico Mena-Quintero <federico@gimp.org>
* Michael Fulbright <drmike@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.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <setjmp.h>
#include <jpeglib.h>
#include <jerror.h>
Most of this patch is based on a patch by Havoc Pennington (hp@redhat.com) 2000-04-11 Federico Mena Quintero <federico@helixcode.com> Most of this patch is based on a patch by Havoc Pennington (hp@redhat.com) to make GdkPixbuf's structures opaque and to remove the libart dependency. * gdk-pixbuf/gdk-pixbuf.h: Removed the public structures. (GdkColorspace): New enum that for now only contains GDK_COLORSPACE_RGB. (GdkPixbufDestroyNotify): New type for the pixbuf's pixels destroy notification function. (GdkInterpType): New num with interpolation types. * *.[ch]: Replace the libart stuff with our own stuff. * pixops/*.[ch]: Likewise. * gdk-pixbuf/gdk-pixbuf-private.h: New file with the private declarations of the GdkPixbuf structures. * gdk-pixbuf/gdk-pixbuf.c (gdk_pixbuf_new_from_art_pixbuf): Removed function. (gdk_pixbuf_get_format): Constify. (gdk_pixbuf_get_n_channels): Constify. (gdk_pixbuf_get_has_alpha): Constify. (gdk_pixbuf_get_bits_per_sample): Constify. (gdk_pixbuf_get_pixels): Constify. (gdk_pixbuf_get_width): Constify. (gdk_pixbuf_get_height): Constify. (gdk_pixbuf_get_rowstride): Constify. * gdk-pixbuf/gdk-pixbuf.c (gdk_pixbuf_copy): New function to copy a pixbuf. * gdk-pixbuf/gdk-pixbuf-data.c (gdk_pixbuf_new_from_data): Added a bits_per_sample argument; currently only 8 bits per sample are supported. * gdk-pixbuf/gdk-pixbuf-animation.c (gdk_pixbuf_frame_get_pixbuf): New accessor. (gdk_pixbuf_frame_get_x_offset): New accessor. (gdk_pixbuf_frame_get_y_offset): New accessor. (gdk_pixbuf_frame_get_delay_time): New accessor. (gdk_pixbuf_frame_get_action): New accessor. * gdk-pixbuf/gdk-pixbuf-render.c (gdk_pixbuf_render_pixmap_and_mask): Instead of returning a solid mask rectangle for pixbufs without an alpha channel, set the *mask_return to NULL. * gdk-pixbuf/gdk-pixbuf-util.c (gdk_pixbuf_add_alpha): Constify. * gdk-pixbuf/gdk-pixbuf-scale.c: Fix includes. * gdk-pixbuf/gdk-pixbuf-scale.c (gdk_pixbuf_scale): Added some preconditions. Maybe we should also check for the colorspace, bits per pixel, and such. (gdk_pixbuf_composite): Likewise. (gdk_pixbuf_composite_color): Likewise. (gdk_pixbuf_scale_simple): Likewise, and fail gracefully if we cannot allocate the new pixbuf. (gdk_pixbuf_composite_color_simple): Likewise. * gdk-pixbuf/gnome-canvas-pixbuf.c (gnome_canvas_pixbuf_render): Use art_rgb_rgba_affine() or art_rgb_affine() since we no longer have an ArtPixBuf. * gdk-pixbuf/io-bmp.c: Fix includes. * gdk-pixbuf/pixops/pixops.c (pixops_scale_nearest): Fixed cast in an lvalue. * TODO: Populated. * configure.in: Removed checks for libart. * gdk-pixbuf/Makefile.am: Removed references to libart. (noinst_HEADERS): Added gdk-pixbuf-private.h. * gdk-pixbuf/Makefile.am (libgdk_pixbuf_la_LDFLAGS): Incremented the version number of the libtool library to indicate that this definitely is not compatible with the old usage. I know you love me. I know you do. * configure.in: Bumped version number to 0.7.0. * README: Updated. * gdk-pixbuf-config.in (--libs): We no longer require libart. * DEPENDS.libgdk_pixbuf: We no longer depend on libart. * gdk-pixbuf.spec.in: Updated, but I don't guarantee anything.
2000-04-11 07:03:25 +00:00
#include "gdk-pixbuf-private.h"
#include "gdk-pixbuf-io.h"
#ifndef HAVE_SIGSETJMP
#define sigjmp_buf jmp_buf
#define sigsetjmp(jb, x) setjmp(jb)
#define siglongjmp longjmp
#endif
/* we are a "source manager" as far as libjpeg is concerned */
#define JPEG_PROG_BUF_SIZE 65536
typedef struct {
struct jpeg_source_mgr pub; /* public fields */
JOCTET buffer[JPEG_PROG_BUF_SIZE]; /* start of buffer */
long skip_next; /* number of bytes to skip next read */
} my_source_mgr;
typedef my_source_mgr * my_src_ptr;
/* error handler data */
struct error_handler_data {
struct jpeg_error_mgr pub;
sigjmp_buf setjmp_buffer;
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
GError **error;
};
/* progressive loader context */
typedef struct {
GdkPixbufModuleSizeFunc size_func;
GdkPixbufModuleUpdatedFunc updated_func;
GdkPixbufModulePreparedFunc prepared_func;
gpointer user_data;
GdkPixbuf *pixbuf;
guchar *dptr; /* current position in pixbuf */
gboolean did_prescan; /* are we in image data yet? */
gboolean got_header; /* have we loaded jpeg header? */
gboolean src_initialized;/* TRUE when jpeg lib initialized */
gboolean in_output; /* did we get suspended in an output pass? */
struct jpeg_decompress_struct cinfo;
struct error_handler_data jerr;
} JpegProgContext;
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
static GdkPixbuf *gdk_pixbuf__jpeg_image_load (FILE *f, GError **error);
static gpointer gdk_pixbuf__jpeg_image_begin_load (GdkPixbufModuleSizeFunc func0,
GdkPixbufModulePreparedFunc func1,
GdkPixbufModuleUpdatedFunc func2,
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
gpointer user_data,
GError **error);
static gboolean gdk_pixbuf__jpeg_image_stop_load (gpointer context, GError **error);
static gboolean gdk_pixbuf__jpeg_image_load_increment(gpointer context,
const guchar *buf, guint size,
GError **error);
static void
fatal_error_handler (j_common_ptr cinfo)
{
struct error_handler_data *errmgr;
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
char buffer[JMSG_LENGTH_MAX];
errmgr = (struct error_handler_data *) cinfo->err;
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
/* Create the message */
(* cinfo->err->format_message) (cinfo, buffer);
/* broken check for *error == NULL for robustness against
* crappy JPEG library
*/
if (errmgr->error && *errmgr->error == NULL) {
g_set_error (errmgr->error,
GDK_PIXBUF_ERROR,
cinfo->err->msg_code == JERR_OUT_OF_MEMORY
? GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY
: GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
_("Error interpreting JPEG image file (%s)"),
buffer);
}
siglongjmp (errmgr->setjmp_buffer, 1);
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
g_assert_not_reached ();
}
static void
output_message_handler (j_common_ptr cinfo)
{
/* This method keeps libjpeg from dumping crap to stderr */
/* do nothing */
}
/* explode gray image data from jpeg library into rgb components in pixbuf */
static void
explode_gray_into_buf (struct jpeg_decompress_struct *cinfo,
guchar **lines)
{
gint i, j;
guint w;
g_return_if_fail (cinfo != NULL);
g_return_if_fail (cinfo->output_components == 1);
g_return_if_fail (cinfo->out_color_space == JCS_GRAYSCALE);
/* Expand grey->colour. Expand from the end of the
* memory down, so we can use the same buffer.
*/
w = cinfo->output_width;
for (i = cinfo->rec_outbuf_height - 1; i >= 0; i--) {
guchar *from, *to;
from = lines[i] + w - 1;
to = lines[i] + (w - 1) * 3;
for (j = w - 1; j >= 0; j--) {
to[0] = from[0];
to[1] = from[0];
to[2] = from[0];
to -= 3;
from--;
}
}
}
static void
convert_cmyk_to_rgb (struct jpeg_decompress_struct *cinfo,
guchar **lines)
{
gint i, j;
g_return_if_fail (cinfo != NULL);
g_return_if_fail (cinfo->output_components == 4);
g_return_if_fail (cinfo->out_color_space == JCS_CMYK);
for (i = cinfo->rec_outbuf_height - 1; i >= 0; i--) {
guchar *p;
p = lines[i];
for (j = 0; j < cinfo->output_width; j++) {
int c, m, y, k;
c = p[0];
m = p[1];
y = p[2];
k = p[3];
if (cinfo->saw_Adobe_marker) {
p[0] = k*c / 255;
p[1] = k*m / 255;
p[2] = k*y / 255;
}
else {
p[0] = (255 - k)*(255 - c) / 255;
p[1] = (255 - k)*(255 - m) / 255;
p[2] = (255 - k)*(255 - y) / 255;
}
p[3] = 255;
p += 4;
}
}
}
typedef struct {
struct jpeg_source_mgr pub; /* public fields */
FILE * infile; /* source stream */
JOCTET * buffer; /* start of buffer */
boolean start_of_file; /* have we gotten any data yet? */
} stdio_source_mgr;
typedef stdio_source_mgr * stdio_src_ptr;
static void
stdio_init_source (j_decompress_ptr cinfo)
{
stdio_src_ptr src = (stdio_src_ptr)cinfo->src;
src->start_of_file = FALSE;
}
static boolean
stdio_fill_input_buffer (j_decompress_ptr cinfo)
{
stdio_src_ptr src = (stdio_src_ptr) cinfo->src;
size_t nbytes;
nbytes = fread (src->buffer, 1, JPEG_PROG_BUF_SIZE, src->infile);
if (nbytes <= 0) {
#if 0
if (src->start_of_file) /* Treat empty input file as fatal error */
ERREXIT(cinfo, JERR_INPUT_EMPTY);
WARNMS(cinfo, JWRN_JPEG_EOF);
#endif
/* Insert a fake EOI marker */
src->buffer[0] = (JOCTET) 0xFF;
src->buffer[1] = (JOCTET) JPEG_EOI;
nbytes = 2;
}
src->pub.next_input_byte = src->buffer;
src->pub.bytes_in_buffer = nbytes;
src->start_of_file = FALSE;
return TRUE;
}
static void
stdio_skip_input_data (j_decompress_ptr cinfo, long num_bytes)
{
stdio_src_ptr src = (stdio_src_ptr) cinfo->src;
if (num_bytes > 0) {
while (num_bytes > (long) src->pub.bytes_in_buffer) {
num_bytes -= (long) src->pub.bytes_in_buffer;
(void)stdio_fill_input_buffer(cinfo);
}
src->pub.next_input_byte += (size_t) num_bytes;
src->pub.bytes_in_buffer -= (size_t) num_bytes;
}
}
static void
stdio_term_source (j_decompress_ptr cinfo)
{
}
static gchar *
colorspace_name (const J_COLOR_SPACE jpeg_color_space)
{
switch (jpeg_color_space) {
case JCS_UNKNOWN: return "UNKNOWN";
case JCS_GRAYSCALE: return "GRAYSCALE";
case JCS_RGB: return "RGB";
case JCS_YCbCr: return "YCbCr";
case JCS_CMYK: return "CMYK";
case JCS_YCCK: return "YCCK";
default: return "invalid";
}
}
/* Shared library entry point */
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
static GdkPixbuf *
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
gdk_pixbuf__jpeg_image_load (FILE *f, GError **error)
{
gint i;
GdkPixbuf * volatile pixbuf = NULL;
1999-10-26 20:43:39 +00:00
guchar *dptr;
guchar *lines[4]; /* Used to expand rows, via rec_outbuf_height,
* from the header file:
* " Usually rec_outbuf_height will be 1 or 2,
* at most 4."
*/
guchar **lptr;
struct jpeg_decompress_struct cinfo;
struct error_handler_data jerr;
stdio_src_ptr src;
/* setup error handler */
cinfo.err = jpeg_std_error (&jerr.pub);
jerr.pub.error_exit = fatal_error_handler;
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
jerr.pub.output_message = output_message_handler;
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
jerr.error = error;
if (sigsetjmp (jerr.setjmp_buffer, 1)) {
/* Whoops there was a jpeg error */
if (pixbuf)
g_object_unref (pixbuf);
jpeg_destroy_decompress (&cinfo);
return NULL;
}
/* load header, setup */
jpeg_create_decompress (&cinfo);
cinfo.src = (struct jpeg_source_mgr *)
(*cinfo.mem->alloc_small) ((j_common_ptr) &cinfo, JPOOL_PERMANENT,
sizeof (stdio_source_mgr));
src = (stdio_src_ptr) cinfo.src;
src->buffer = (JOCTET *)
(*cinfo.mem->alloc_small) ((j_common_ptr) &cinfo, JPOOL_PERMANENT,
JPEG_PROG_BUF_SIZE * sizeof (JOCTET));
src->pub.init_source = stdio_init_source;
src->pub.fill_input_buffer = stdio_fill_input_buffer;
src->pub.skip_input_data = stdio_skip_input_data;
src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */
src->pub.term_source = stdio_term_source;
src->infile = f;
src->pub.bytes_in_buffer = 0; /* forces fill_input_buffer on first read */
src->pub.next_input_byte = NULL; /* until buffer loaded */
jpeg_read_header (&cinfo, TRUE);
jpeg_start_decompress (&cinfo);
cinfo.do_fancy_upsampling = FALSE;
cinfo.do_block_smoothing = FALSE;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
cinfo.out_color_components == 4 ? TRUE : FALSE,
8, cinfo.output_width, cinfo.output_height);
if (!pixbuf) {
jpeg_destroy_decompress (&cinfo);
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
/* broken check for *error == NULL for robustness against
* crappy JPEG library
*/
if (error && *error == NULL) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
_("Insufficient memory to load image, try exiting some applications to free memory"));
}
return NULL;
}
dptr = pixbuf->pixels;
/* decompress all the lines, a few at a time */
while (cinfo.output_scanline < cinfo.output_height) {
lptr = lines;
for (i = 0; i < cinfo.rec_outbuf_height; i++) {
*lptr++ = dptr;
dptr += pixbuf->rowstride;
}
jpeg_read_scanlines (&cinfo, lines, cinfo.rec_outbuf_height);
switch (cinfo.out_color_space) {
case JCS_GRAYSCALE:
explode_gray_into_buf (&cinfo, lines);
break;
case JCS_RGB:
/* do nothing */
break;
case JCS_CMYK:
convert_cmyk_to_rgb (&cinfo, lines);
break;
default:
g_object_unref (pixbuf);
if (error && *error == NULL) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
_("Unsupported JPEG color space (%s)"),
colorspace_name (cinfo.out_color_space));
}
jpeg_destroy_decompress (&cinfo);
return NULL;
}
}
jpeg_finish_decompress (&cinfo);
jpeg_destroy_decompress (&cinfo);
return pixbuf;
}
/**** Progressive image loading handling *****/
/* these routines required because we are acting as a source manager for */
/* libjpeg. */
static void
init_source (j_decompress_ptr cinfo)
{
my_src_ptr src = (my_src_ptr) cinfo->src;
src->skip_next = 0;
}
static void
term_source (j_decompress_ptr cinfo)
{
/* XXXX - probably should scream something has happened */
}
/* for progressive loading (called "I/O Suspension" by libjpeg docs) */
/* we do nothing except return "FALSE" */
static boolean
fill_input_buffer (j_decompress_ptr cinfo)
{
return FALSE;
}
static void
skip_input_data (j_decompress_ptr cinfo, long num_bytes)
{
my_src_ptr src = (my_src_ptr) cinfo->src;
long num_can_do;
/* move as far as we can into current buffer */
/* then set skip_next to catch the rest */
if (num_bytes > 0) {
num_can_do = MIN (src->pub.bytes_in_buffer, num_bytes);
src->pub.next_input_byte += (size_t) num_can_do;
src->pub.bytes_in_buffer -= (size_t) num_can_do;
src->skip_next = num_bytes - num_can_do;
}
}
/*
* func - called when we have pixmap created (but no image data)
* user_data - passed as arg 1 to func
* return context (opaque to user)
*/
static gpointer
gdk_pixbuf__jpeg_image_begin_load (GdkPixbufModuleSizeFunc size_func,
GdkPixbufModulePreparedFunc prepared_func,
GdkPixbufModuleUpdatedFunc updated_func,
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
gpointer user_data,
GError **error)
{
JpegProgContext *context;
my_source_mgr *src;
context = g_new0 (JpegProgContext, 1);
context->size_func = size_func;
context->prepared_func = prepared_func;
context->updated_func = updated_func;
context->user_data = user_data;
context->pixbuf = NULL;
context->got_header = FALSE;
context->did_prescan = FALSE;
context->src_initialized = FALSE;
context->in_output = FALSE;
/* create libjpeg structures */
jpeg_create_decompress (&context->cinfo);
context->cinfo.src = (struct jpeg_source_mgr *) g_try_malloc (sizeof (my_source_mgr));
if (!context->cinfo.src) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
_("Couldn't allocate memory for loading JPEG file"));
return NULL;
}
memset (context->cinfo.src, 0, sizeof (my_source_mgr));
src = (my_src_ptr) context->cinfo.src;
context->cinfo.err = jpeg_std_error (&context->jerr.pub);
context->jerr.pub.error_exit = fatal_error_handler;
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
context->jerr.pub.output_message = output_message_handler;
context->jerr.error = error;
src = (my_src_ptr) context->cinfo.src;
src->pub.init_source = init_source;
src->pub.fill_input_buffer = fill_input_buffer;
src->pub.skip_input_data = skip_input_data;
src->pub.resync_to_restart = jpeg_resync_to_restart;
src->pub.term_source = term_source;
src->pub.bytes_in_buffer = 0;
src->pub.next_input_byte = NULL;
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
context->jerr.error = NULL;
return (gpointer) context;
}
/*
* context - returned from image_begin_load
*
* free context, unref gdk_pixbuf
*/
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
static gboolean
gdk_pixbuf__jpeg_image_stop_load (gpointer data, GError **error)
{
JpegProgContext *context = (JpegProgContext *) data;
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
g_return_val_if_fail (context != NULL, TRUE);
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
/* FIXME this thing needs to report errors if
* we have unused image data
*/
if (context->pixbuf)
g_object_unref (context->pixbuf);
/* if we have an error? */
if (sigsetjmp (context->jerr.setjmp_buffer, 1)) {
jpeg_destroy_decompress (&context->cinfo);
} else {
jpeg_finish_decompress(&context->cinfo);
jpeg_destroy_decompress(&context->cinfo);
}
if (context->cinfo.src) {
my_src_ptr src = (my_src_ptr) context->cinfo.src;
g_free (src);
}
g_free (context);
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
return TRUE;
}
static gboolean
gdk_pixbuf__jpeg_image_load_lines (JpegProgContext *context,
GError **error)
{
struct jpeg_decompress_struct *cinfo = &context->cinfo;
guchar *lines[4];
guchar **lptr;
guchar *rowptr;
gint nlines, i;
/* keep going until we've done all scanlines */
while (cinfo->output_scanline < cinfo->output_height) {
lptr = lines;
rowptr = context->dptr;
for (i=0; i < cinfo->rec_outbuf_height; i++) {
*lptr++ = rowptr;
rowptr += context->pixbuf->rowstride;
}
nlines = jpeg_read_scanlines (cinfo, lines,
cinfo->rec_outbuf_height);
if (nlines == 0)
break;
switch (cinfo->out_color_space) {
case JCS_GRAYSCALE:
explode_gray_into_buf (cinfo, lines);
break;
case JCS_RGB:
/* do nothing */
break;
case JCS_CMYK:
convert_cmyk_to_rgb (cinfo, lines);
break;
default:
if (error && *error == NULL) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_UNKNOWN_TYPE,
_("Unsupported JPEG color space (%s)"),
colorspace_name (cinfo->out_color_space));
}
return FALSE;
}
context->dptr += nlines * context->pixbuf->rowstride;
/* send updated signal */
(* context->updated_func) (context->pixbuf,
0,
cinfo->output_scanline - 1,
cinfo->image_width,
nlines,
context->user_data);
}
return TRUE;
}
/*
* context - from image_begin_load
* buf - new image data
* size - length of new image data
*
* append image data onto inrecrementally built output image
*/
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
static gboolean
gdk_pixbuf__jpeg_image_load_increment (gpointer data,
const guchar *buf, guint size,
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
GError **error)
{
JpegProgContext *context = (JpegProgContext *)data;
struct jpeg_decompress_struct *cinfo;
my_src_ptr src;
guint num_left, num_copy;
guint last_bytes_left;
guint spinguard;
gboolean first;
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
const guchar *bufhd;
gint width, height;
g_return_val_if_fail (context != NULL, FALSE);
g_return_val_if_fail (buf != NULL, FALSE);
src = (my_src_ptr) context->cinfo.src;
cinfo = &context->cinfo;
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
context->jerr.error = error;
/* check for fatal error */
if (sigsetjmp (context->jerr.setjmp_buffer, 1)) {
return FALSE;
}
/* skip over data if requested, handle unsigned int sizes cleanly */
/* only can happen if we've already called jpeg_get_header once */
if (context->src_initialized && src->skip_next) {
if (src->skip_next > size) {
src->skip_next -= size;
return TRUE;
} else {
num_left = size - src->skip_next;
bufhd = buf + src->skip_next;
src->skip_next = 0;
}
} else {
num_left = size;
bufhd = buf;
}
if (num_left == 0)
return TRUE;
last_bytes_left = 0;
spinguard = 0;
first = TRUE;
while (TRUE) {
/* handle any data from caller we haven't processed yet */
if (num_left > 0) {
if(src->pub.bytes_in_buffer &&
src->pub.next_input_byte != src->buffer)
memmove(src->buffer, src->pub.next_input_byte,
src->pub.bytes_in_buffer);
num_copy = MIN (JPEG_PROG_BUF_SIZE - src->pub.bytes_in_buffer,
num_left);
1999-11-02 17:17:00 +00:00
memcpy(src->buffer + src->pub.bytes_in_buffer, bufhd,num_copy);
src->pub.next_input_byte = src->buffer;
src->pub.bytes_in_buffer += num_copy;
bufhd += num_copy;
num_left -= num_copy;
} else {
/* did anything change from last pass, if not return */
if (first) {
last_bytes_left = src->pub.bytes_in_buffer;
first = FALSE;
} else if (src->pub.bytes_in_buffer == last_bytes_left)
spinguard++;
else
last_bytes_left = src->pub.bytes_in_buffer;
}
1999-11-02 17:17:00 +00:00
/* should not go through twice and not pull bytes out of buf */
if (spinguard > 2)
return TRUE;
/* try to load jpeg header */
if (!context->got_header) {
int rc;
rc = jpeg_read_header (cinfo, TRUE);
context->src_initialized = TRUE;
if (rc == JPEG_SUSPENDED)
continue;
context->got_header = TRUE;
width = cinfo->image_width;
height = cinfo->image_height;
if (context->size_func) {
(* context->size_func) (&width, &height, context->user_data);
if (width == 0 || height == 0)
return FALSE;
}
for (cinfo->scale_denom = 2; cinfo->scale_denom <= 8; cinfo->scale_denom *= 2) {
jpeg_calc_output_dimensions (cinfo);
if (cinfo->output_width < width || cinfo->output_height < height) {
cinfo->scale_denom /= 2;
break;
}
}
jpeg_calc_output_dimensions (cinfo);
context->pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
cinfo->output_components == 4 ? TRUE : FALSE,
8,
cinfo->output_width,
cinfo->output_height);
if (context->pixbuf == NULL) {
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
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
_("Couldn't allocate memory for loading JPEG file"));
return FALSE;
}
/* Use pixbuf buffer to store decompressed data */
Most of this patch is based on a patch by Havoc Pennington (hp@redhat.com) 2000-04-11 Federico Mena Quintero <federico@helixcode.com> Most of this patch is based on a patch by Havoc Pennington (hp@redhat.com) to make GdkPixbuf's structures opaque and to remove the libart dependency. * gdk-pixbuf/gdk-pixbuf.h: Removed the public structures. (GdkColorspace): New enum that for now only contains GDK_COLORSPACE_RGB. (GdkPixbufDestroyNotify): New type for the pixbuf's pixels destroy notification function. (GdkInterpType): New num with interpolation types. * *.[ch]: Replace the libart stuff with our own stuff. * pixops/*.[ch]: Likewise. * gdk-pixbuf/gdk-pixbuf-private.h: New file with the private declarations of the GdkPixbuf structures. * gdk-pixbuf/gdk-pixbuf.c (gdk_pixbuf_new_from_art_pixbuf): Removed function. (gdk_pixbuf_get_format): Constify. (gdk_pixbuf_get_n_channels): Constify. (gdk_pixbuf_get_has_alpha): Constify. (gdk_pixbuf_get_bits_per_sample): Constify. (gdk_pixbuf_get_pixels): Constify. (gdk_pixbuf_get_width): Constify. (gdk_pixbuf_get_height): Constify. (gdk_pixbuf_get_rowstride): Constify. * gdk-pixbuf/gdk-pixbuf.c (gdk_pixbuf_copy): New function to copy a pixbuf. * gdk-pixbuf/gdk-pixbuf-data.c (gdk_pixbuf_new_from_data): Added a bits_per_sample argument; currently only 8 bits per sample are supported. * gdk-pixbuf/gdk-pixbuf-animation.c (gdk_pixbuf_frame_get_pixbuf): New accessor. (gdk_pixbuf_frame_get_x_offset): New accessor. (gdk_pixbuf_frame_get_y_offset): New accessor. (gdk_pixbuf_frame_get_delay_time): New accessor. (gdk_pixbuf_frame_get_action): New accessor. * gdk-pixbuf/gdk-pixbuf-render.c (gdk_pixbuf_render_pixmap_and_mask): Instead of returning a solid mask rectangle for pixbufs without an alpha channel, set the *mask_return to NULL. * gdk-pixbuf/gdk-pixbuf-util.c (gdk_pixbuf_add_alpha): Constify. * gdk-pixbuf/gdk-pixbuf-scale.c: Fix includes. * gdk-pixbuf/gdk-pixbuf-scale.c (gdk_pixbuf_scale): Added some preconditions. Maybe we should also check for the colorspace, bits per pixel, and such. (gdk_pixbuf_composite): Likewise. (gdk_pixbuf_composite_color): Likewise. (gdk_pixbuf_scale_simple): Likewise, and fail gracefully if we cannot allocate the new pixbuf. (gdk_pixbuf_composite_color_simple): Likewise. * gdk-pixbuf/gnome-canvas-pixbuf.c (gnome_canvas_pixbuf_render): Use art_rgb_rgba_affine() or art_rgb_affine() since we no longer have an ArtPixBuf. * gdk-pixbuf/io-bmp.c: Fix includes. * gdk-pixbuf/pixops/pixops.c (pixops_scale_nearest): Fixed cast in an lvalue. * TODO: Populated. * configure.in: Removed checks for libart. * gdk-pixbuf/Makefile.am: Removed references to libart. (noinst_HEADERS): Added gdk-pixbuf-private.h. * gdk-pixbuf/Makefile.am (libgdk_pixbuf_la_LDFLAGS): Incremented the version number of the libtool library to indicate that this definitely is not compatible with the old usage. I know you love me. I know you do. * configure.in: Bumped version number to 0.7.0. * README: Updated. * gdk-pixbuf-config.in (--libs): We no longer require libart. * DEPENDS.libgdk_pixbuf: We no longer depend on libart. * gdk-pixbuf.spec.in: Updated, but I don't guarantee anything.
2000-04-11 07:03:25 +00:00
context->dptr = context->pixbuf->pixels;
/* Notify the client that we are ready to go */
(* context->prepared_func) (context->pixbuf,
fix some shell typos 2001-05-04 Havoc Pennington <hp@redhat.com> * configure.in: fix some shell typos * gtk/gtkcolorsel.c (gtk_color_selection_destroy): warning fix * gtk/gtkimage.c: handle animations * gtk/gtkcheckbutton.c (gtk_check_button_size_request): request border_width * 2, not just border_width * gtk/gtkscale.c: add "format_value" signal to allow people to override the way values are drawn. (gtk_scale_get_value_size): fix width/height mistake, and compute size from actual displayed text, not from made-up text. * gtk/gtktexttag.c (gtk_text_tag_class_init): fix return type in signal registration * tests/testtext.c: Add "Remove all tags" menu item for testing * gtk/gtktextbuffer.c (gtk_text_buffer_remove_all_tags): implement * demos/gtk-demo/main.c (main): add hack so we can find modules without installing gtk * demos/gtk-demo/textview.c (insert_text): demo font scaling * gtk/gtkcellrenderertext.c: Add "scale" property (font scaling factor) (gtk_cell_renderer_text_set_property): remove some bogus g_object_notify * gtk/gtktexttag.c: add "scale" property which is a font scaling factor * gtk/gtktextlayout.c (add_text_attrs): add font scale attribute to layout * gtk/gtktextiter.c (gtk_text_iter_is_start): rename from gtk_text_iter_is_first 2001-05-04 Havoc Pennington <hp@redhat.com> * pixops/pixops.c (pixops_process): merge fix from stable: Patch from hoshem@mel.comcen.com.au to fix nonzero X offsets. Fixes bug #50371. * gdk-pixbuf/pixops/pixops.c (pixops_composite_nearest): merge from stable: Patch from OKADA Mitsuru <m-okada@fjb.co.jp> to fix confusion of using "src" instead of "p". (pixops_composite_color_nearest): Use a more accurate (and correct, to begin with) compositing method. This cures checks showing through on images with no alpha. * gdk-pixbuf.c (gdk_pixbuf_fill): fix bug that left some trailing bytes unfilled. * gdk-pixbuf-io.h: fix UpdatedNotifyFunc to use signed ints * gdk-pixbuf-loader.h (struct _GdkPixbufLoaderClass): Change area_updated signal to use signed ints. Removed animation-related signals. * io-gif.c, io-gif-animation.h, io-gif-animation.c: Massive rewrite action * gdk-pixbuf-animation.c: Add GdkPixbufAnimationIter to abstract all the pesky details. Remove old frame-based API. Make GdkPixbufAnimation an abstract base class, derived by the loaders.
2001-05-07 15:58:47 +00:00
NULL,
context->user_data);
} else if (!context->did_prescan) {
int rc;
/* start decompression */
cinfo->buffered_image = cinfo->progressive_mode;
rc = jpeg_start_decompress (cinfo);
cinfo->do_fancy_upsampling = FALSE;
cinfo->do_block_smoothing = FALSE;
if (rc == JPEG_SUSPENDED)
continue;
context->did_prescan = TRUE;
} else if (!cinfo->buffered_image) {
/* we're decompressing unbuffered so
* simply get scanline by scanline from jpeg lib
*/
if (! gdk_pixbuf__jpeg_image_load_lines (context,
error))
return FALSE;
if (cinfo->output_scanline >= cinfo->output_height)
return TRUE;
} else {
/* we're decompressing buffered (progressive)
* so feed jpeg lib scanlines
*/
/* keep going until we've done all passes */
while (!jpeg_input_complete (cinfo)) {
if (!context->in_output) {
if (jpeg_start_output (cinfo, cinfo->input_scan_number)) {
context->in_output = TRUE;
context->dptr = context->pixbuf->pixels;
}
else
break;
}
/* get scanlines from jpeg lib */
if (! gdk_pixbuf__jpeg_image_load_lines (context,
error))
return FALSE;
if (cinfo->output_scanline >= cinfo->output_height &&
jpeg_finish_output (cinfo))
context->in_output = FALSE;
else
break;
}
if (jpeg_input_complete (cinfo))
/* did entire image */
return TRUE;
else
continue;
}
}
return TRUE;
}
/* Save */
#define TO_FUNCTION_BUF_SIZE 4096
typedef struct {
struct jpeg_destination_mgr pub;
JOCTET *buffer;
GdkPixbufSaveFunc save_func;
gpointer user_data;
GError **error;
} ToFunctionDestinationManager;
void
to_callback_init (j_compress_ptr cinfo)
{
ToFunctionDestinationManager *destmgr;
destmgr = (ToFunctionDestinationManager*) cinfo->dest;
destmgr->pub.next_output_byte = destmgr->buffer;
destmgr->pub.free_in_buffer = TO_FUNCTION_BUF_SIZE;
}
static void
to_callback_do_write (j_compress_ptr cinfo, gsize length)
{
ToFunctionDestinationManager *destmgr;
destmgr = (ToFunctionDestinationManager*) cinfo->dest;
if (!destmgr->save_func (destmgr->buffer,
length,
destmgr->error,
destmgr->user_data)) {
struct error_handler_data *errmgr;
errmgr = (struct error_handler_data *) cinfo->err;
/* Use a default error message if the callback didn't set one,
* which it should have.
*/
if (errmgr->error && *errmgr->error == NULL) {
g_set_error (errmgr->error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_CORRUPT_IMAGE,
"write function failed");
}
siglongjmp (errmgr->setjmp_buffer, 1);
g_assert_not_reached ();
}
}
static boolean
to_callback_empty_output_buffer (j_compress_ptr cinfo)
{
ToFunctionDestinationManager *destmgr;
destmgr = (ToFunctionDestinationManager*) cinfo->dest;
to_callback_do_write (cinfo, TO_FUNCTION_BUF_SIZE);
destmgr->pub.next_output_byte = destmgr->buffer;
destmgr->pub.free_in_buffer = TO_FUNCTION_BUF_SIZE;
return TRUE;
}
void
to_callback_terminate (j_compress_ptr cinfo)
{
ToFunctionDestinationManager *destmgr;
destmgr = (ToFunctionDestinationManager*) cinfo->dest;
to_callback_do_write (cinfo, TO_FUNCTION_BUF_SIZE - destmgr->pub.free_in_buffer);
}
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
static gboolean
real_save_jpeg (GdkPixbuf *pixbuf,
gchar **keys,
gchar **values,
GError **error,
gboolean to_callback,
FILE *f,
GdkPixbufSaveFunc save_func,
gpointer user_data)
{
/* FIXME error handling is broken */
struct jpeg_compress_struct cinfo;
guchar *buf = NULL;
guchar *ptr;
guchar *pixels = NULL;
JSAMPROW *jbuf;
int y = 0;
volatile int quality = 75; /* default; must be between 0 and 100 */
int i, j;
int w, h = 0;
int rowstride = 0;
int n_channels;
struct error_handler_data jerr;
ToFunctionDestinationManager to_callback_destmgr;
to_callback_destmgr.buffer = NULL;
if (keys && *keys) {
gchar **kiter = keys;
gchar **viter = values;
while (*kiter) {
if (strcmp (*kiter, "quality") == 0) {
char *endptr = NULL;
quality = strtol (*viter, &endptr, 10);
if (endptr == *viter) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_BAD_OPTION,
_("JPEG quality must be a value between 0 and 100; value '%s' could not be parsed."),
*viter);
return FALSE;
}
if (quality < 0 ||
quality > 100) {
/* This is a user-visible error;
* lets people skip the range-checking
* in their app.
*/
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_BAD_OPTION,
_("JPEG quality must be a value between 0 and 100; value '%d' is not allowed."),
quality);
return FALSE;
}
} else {
g_warning ("Bad option name '%s' passed to JPEG saver",
*kiter);
return FALSE;
}
++kiter;
++viter;
}
}
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
n_channels = gdk_pixbuf_get_n_channels (pixbuf);
w = gdk_pixbuf_get_width (pixbuf);
h = gdk_pixbuf_get_height (pixbuf);
/* no image data? abort */
pixels = gdk_pixbuf_get_pixels (pixbuf);
g_return_val_if_fail (pixels != NULL, FALSE);
/* Allocate a small buffer to convert image data,
* and a larger buffer if doing to_callback save.
*/
buf = g_try_malloc (w * 3 * sizeof (guchar));
if (!buf) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
_("Couldn't allocate memory for loading JPEG file"));
return FALSE;
}
if (to_callback) {
to_callback_destmgr.buffer = g_try_malloc (TO_FUNCTION_BUF_SIZE);
if (!to_callback_destmgr.buffer) {
g_set_error (error,
GDK_PIXBUF_ERROR,
GDK_PIXBUF_ERROR_INSUFFICIENT_MEMORY,
_("Couldn't allocate memory for loading JPEG file"));
return FALSE;
}
}
/* set up error handling */
jerr.pub.error_exit = fatal_error_handler;
Some updates 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtk-sections.txt: Some updates * gdk/gdk-sections.txt: remove GdkPixbufAlphaMode * gdk-pixbuf/gdk-pixbuf-sections.txt: Add new API, remove GdkPixbufClass/GdkAnimationClass since those are private * gdk-pixbuf/Makefile.am (IGNORE_HFILES): ignore more headers 2000-10-18 Havoc Pennington <hp@redhat.com> * gtk/gtktextiter.c (gtk_text_iter_forward_to_newline): Fix a bug where any number of empty lines would get skipped * gtk/gtktextiter.h: Remove padding from GtkTextIter; live on the edge. * gtk/gtktextiter.c (gtk_text_iter_make_surreal): enhance the warning about invalid iterators (explain more thoroughly) (gtk_text_iter_in_region): rename gtk_text_iter_in_range * gtk/gtktextview.c (FOCUS_EDGE_WIDTH): Make focus rectangle less big * demos/*.c: Add error handling * gtk/gtktextbuffer.c: don't modify const iterators * gtk/gdk-pixbuf-loader.c: Add full error handling here * gtk/gtkimage.c (gtk_image_set_from_file): ignore errors on file load * gtk/gtkiconfactory.c: Update to reflect addition of error handling to gdk-pixbuf loaders 2000-10-16 Havoc Pennington <hp@redhat.com> * gdk-pixbuf-io.c (gdk_pixbuf_get_module) (gdk_pixbuf_get_named_module) (gdk_pixbuf_load_module): add error reporting here also * make-inline-pixbuf.c (main): use GError * io-xpm.c: include unistd.h * gdk-pixbuf-util.c: include string.h * io-*.c: add error reporting * gdk-pixbuf-animation.c (gdk_pixbuf_animation_new_from_file): add error reporting * gdk-pixbuf-io.c (gdk_pixbuf_new_from_file): Add error reporting * gdk-pixbuf-io.h: Add GError** to load_increment and load methods * gdk-pixbuf-io.c (gdk_pixbuf_save) (gdk_pixbuf_savev): return a G_FILE_ERROR if we fail to write or close the file. * gdk-pixbuf.h: remove GDK_PIXBUF_ERROR_IO, instead we'll use G_FILE_ERROR_*. Rename enum to GdkPixbufError, properly following the GError naming rules. Add GError** to load functions.
2000-10-18 18:42:54 +00:00
jerr.pub.output_message = output_message_handler;
jerr.error = error;
cinfo.err = jpeg_std_error (&(jerr.pub));
if (sigsetjmp (jerr.setjmp_buffer, 1)) {
jpeg_destroy_compress (&cinfo);
g_free (buf);
g_free (to_callback_destmgr.buffer);
return FALSE;
}
/* setup compress params */
jpeg_create_compress (&cinfo);
if (to_callback) {
to_callback_destmgr.pub.init_destination = to_callback_init;
to_callback_destmgr.pub.empty_output_buffer = to_callback_empty_output_buffer;
to_callback_destmgr.pub.term_destination = to_callback_terminate;
to_callback_destmgr.error = error;
to_callback_destmgr.save_func = save_func;
to_callback_destmgr.user_data = user_data;
cinfo.dest = (struct jpeg_destination_mgr*) &to_callback_destmgr;
} else {
jpeg_stdio_dest (&cinfo, f);
}
cinfo.image_width = w;
cinfo.image_height = h;
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
/* set up jepg compression parameters */
jpeg_set_defaults (&cinfo);
jpeg_set_quality (&cinfo, quality, TRUE);
jpeg_start_compress (&cinfo, TRUE);
/* get the start pointer */
ptr = pixels;
/* go one scanline at a time... and save */
i = 0;
while (cinfo.next_scanline < cinfo.image_height) {
/* convert scanline from ARGB to RGB packed */
for (j = 0; j < w; j++)
memcpy (&(buf[j*3]), &(ptr[i*rowstride + j*n_channels]), 3);
/* write scanline */
jbuf = (JSAMPROW *)(&buf);
jpeg_write_scanlines (&cinfo, jbuf, 1);
i++;
y++;
}
/* finish off */
jpeg_finish_compress (&cinfo);
jpeg_destroy_compress(&cinfo);
g_free (buf);
g_free (to_callback_destmgr.buffer);
return TRUE;
}
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
static gboolean
gdk_pixbuf__jpeg_image_save (FILE *f,
GdkPixbuf *pixbuf,
gchar **keys,
gchar **values,
GError **error)
{
return real_save_jpeg (pixbuf, keys, values, error,
FALSE, f, NULL, NULL);
}
static gboolean
gdk_pixbuf__jpeg_image_save_to_callback (GdkPixbufSaveFunc save_func,
gpointer user_data,
GdkPixbuf *pixbuf,
gchar **keys,
gchar **values,
GError **error)
{
return real_save_jpeg (pixbuf, keys, values, error,
TRUE, NULL, save_func, user_data);
}
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
void
MODULE_ENTRY (jpeg, fill_vtable) (GdkPixbufModule *module)
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
{
module->load = gdk_pixbuf__jpeg_image_load;
module->begin_load = gdk_pixbuf__jpeg_image_begin_load;
module->stop_load = gdk_pixbuf__jpeg_image_stop_load;
module->load_increment = gdk_pixbuf__jpeg_image_load_increment;
module->save = gdk_pixbuf__jpeg_image_save;
module->save_to_callback = gdk_pixbuf__jpeg_image_save_to_callback;
}
void
MODULE_ENTRY (jpeg, fill_info) (GdkPixbufFormat *info)
{
static GdkPixbufModulePattern signature[] = {
{ "\xff\xd8", NULL, 100 },
{ NULL, NULL, 0 }
};
static gchar * mime_types[] = {
"image/jpeg",
NULL
};
static gchar * extensions[] = {
"jpeg",
"jpe",
"jpg",
NULL
};
info->name = "jpeg";
info->signature = signature;
info->description = N_("The JPEG image format");
info->mime_types = mime_types;
info->extensions = extensions;
info->flags = GDK_PIXBUF_FORMAT_WRITABLE | GDK_PIXBUF_FORMAT_THREADSAFE;
info->license = "LGPL";
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
}