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PIKApp/app/xcf/xcf-save.c

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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <zlib.h>
#include <cairo.h>
#include <gegl.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "libpikabase/pikabase.h"
#include "libpikacolor/pikacolor.h"
#include "config/pikageglconfig.h"
#include "core/core-types.h"
#include "gegl/pika-babl-compat.h"
#include "gegl/pika-gegl-tile-compat.h"
#include "core/pika.h"
#include "core/pikacontainer.h"
#include "core/pikachannel.h"
#include "core/pikadrawable.h"
#include "core/pikagrid.h"
#include "core/pikaguide.h"
#include "core/pikaimage.h"
#include "core/pikaimage-colormap.h"
#include "core/pikaimage-grid.h"
#include "core/pikaimage-guides.h"
#include "core/pikaimage-metadata.h"
#include "core/pikaimage-private.h"
#include "core/pikaimage-sample-points.h"
#include "core/pikaimage-symmetry.h"
#include "core/pikaitemlist.h"
#include "core/pikalayer.h"
#include "core/pikalayermask.h"
#include "core/pikaparasitelist.h"
#include "core/pikaprogress.h"
#include "core/pikasamplepoint.h"
#include "core/pikasymmetry.h"
#include "operations/layer-modes/pika-layer-modes.h"
#include "text/pikatextlayer.h"
#include "text/pikatextlayer-xcf.h"
#include "vectors/pikaanchor.h"
#include "vectors/pikastroke.h"
#include "vectors/pikabezierstroke.h"
#include "vectors/pikavectors.h"
#include "vectors/pikavectors-compat.h"
#include "xcf-private.h"
#include "xcf-read.h"
#include "xcf-save.h"
#include "xcf-seek.h"
#include "xcf-write.h"
#include "pika-intl.h"
typedef void (* CompressTileFunc) (GeglRectangle *tile_rect,
guchar *tile_data,
const Babl *format,
guchar *out_data,
gint out_data_max_len,
gint *lenptr);
/* Per thread data for xcf_save_tile_rle */
typedef struct
{
/* Common to all jobs. */
GeglBuffer *buffer;
gint file_version;
gint max_out_data_len;
CompressTileFunc compress;
/* Job specific. */
gint tile;
gint batch_size;
/* Temp data to avoid too many allocations. */
guchar *tile_data;
/* Return data. */
guchar *out_data;
gint out_data_len[XCF_TILE_SAVE_BATCH_SIZE];
} XcfJobData;
static gboolean xcf_save_image_props (XcfInfo *info,
PikaImage *image,
GError **error);
static gboolean xcf_save_layer_props (XcfInfo *info,
PikaImage *image,
PikaLayer *layer,
GError **error);
static gboolean xcf_save_channel_props (XcfInfo *info,
PikaImage *image,
PikaChannel *channel,
GError **error);
static gboolean xcf_save_path_props (XcfInfo *info,
PikaImage *image,
PikaVectors *vectors,
GError **error);
static gboolean xcf_save_prop (XcfInfo *info,
PikaImage *image,
PropType prop_type,
GError **error,
...);
static gboolean xcf_save_layer (XcfInfo *info,
PikaImage *image,
PikaLayer *layer,
GError **error);
static gboolean xcf_save_channel (XcfInfo *info,
PikaImage *image,
PikaChannel *channel,
GError **error);
static gboolean xcf_save_path (XcfInfo *info,
PikaImage *image,
PikaVectors *vectors,
GError **error);
static gboolean xcf_save_buffer (XcfInfo *info,
PikaImage *image,
GeglBuffer *buffer,
GError **error);
static gboolean xcf_save_level (XcfInfo *info,
PikaImage *image,
GeglBuffer *buffer,
GError **error);
static gboolean xcf_save_tile (XcfInfo *info,
GeglBuffer *buffer,
GeglRectangle *tile_rect,
const Babl *format,
GError **error);
static void xcf_save_free_job_data (XcfJobData *data);
static gint xcf_save_sort_job_data (XcfJobData *data1,
XcfJobData *data2,
gpointer user_data);
static void xcf_save_tile_parallel (XcfJobData *job_data,
GAsyncQueue *queue);
static void xcf_save_tile_rle (GeglRectangle *tile_rect,
guchar *tile_data,
const Babl *format,
guchar *rlebuf,
gint rlebuf_max_len,
gint *lenptr);
static void xcf_save_tile_zlib (GeglRectangle *tile_rect,
guchar *tile_data,
const Babl *format,
guchar *zlib_data,
gint zlib_data_max_len,
gint *lenptr);
static gboolean xcf_save_parasite (XcfInfo *info,
PikaParasite *parasite,
GError **error);
static gboolean xcf_save_parasite_list (XcfInfo *info,
PikaParasiteList *parasite,
GError **error);
static gboolean xcf_save_old_paths (XcfInfo *info,
PikaImage *image,
GError **error);
static gboolean xcf_save_old_vectors (XcfInfo *info,
PikaImage *image,
GError **error);
/* private convenience macros */
#define xcf_write_int32_check_error(info, data, count, cleanup_code) G_STMT_START { \
xcf_write_int32 (info, data, count, &tmp_error); \
if (tmp_error) \
{ \
g_propagate_error (error, tmp_error); \
cleanup_code; \
return FALSE; \
} \
} G_STMT_END
#define xcf_write_offset_check_error(info, data, count, cleanup_code) G_STMT_START { \
xcf_write_offset (info, data, count, &tmp_error); \
if (tmp_error) \
{ \
g_propagate_error (error, tmp_error); \
cleanup_code; \
return FALSE; \
} \
} G_STMT_END
#define xcf_write_zero_offset_check_error(info, count, cleanup_code) G_STMT_START { \
xcf_write_zero_offset (info, count, &tmp_error); \
if (tmp_error) \
{ \
g_propagate_error (error, tmp_error); \
cleanup_code; \
return FALSE; \
} \
} G_STMT_END
#define xcf_write_int8_check_error(info, data, count, cleanup_code) G_STMT_START { \
xcf_write_int8 (info, data, count, &tmp_error); \
if (tmp_error) \
{ \
g_propagate_error (error, tmp_error); \
cleanup_code; \
return FALSE; \
} \
} G_STMT_END
#define xcf_write_float_check_error(info, data, count, cleanup_code) G_STMT_START { \
xcf_write_float (info, data, count, &tmp_error); \
if (tmp_error) \
{ \
g_propagate_error (error, tmp_error); \
cleanup_code; \
return FALSE; \
} \
} G_STMT_END
#define xcf_write_string_check_error(info, data, count, cleanup_code) G_STMT_START { \
xcf_write_string (info, data, count, &tmp_error); \
if (tmp_error) \
{ \
g_propagate_error (error, tmp_error); \
cleanup_code; \
return FALSE; \
} \
} G_STMT_END
#define xcf_write_component_check_error(info, bpc, data, count, cleanup_code) G_STMT_START { \
xcf_write_component (info, bpc, data, count, &tmp_error); \
if (tmp_error) \
{ \
g_propagate_error (error, tmp_error); \
cleanup_code; \
return FALSE; \
} \
} G_STMT_END
#define xcf_write_prop_type_check_error(info, prop_type, cleanup_code) G_STMT_START { \
guint32 _prop_int32 = prop_type; \
xcf_write_int32_check_error (info, &_prop_int32, 1, cleanup_code); \
} G_STMT_END
#define xcf_check_error(x, cleanup_code) G_STMT_START { \
if (! (x)) \
{ \
cleanup_code; \
return FALSE; \
} \
} G_STMT_END
#define xcf_progress_update(info) G_STMT_START \
{ \
progress++; \
if (info->progress) \
pika_progress_set_value (info->progress, \
(gdouble) progress / (gdouble) max_progress); \
} G_STMT_END
gboolean
xcf_save_image (XcfInfo *info,
PikaImage *image,
GError **error)
{
GList *all_layers;
GList *all_channels;
GList *all_paths = NULL;
GList *list;
goffset saved_pos;
goffset offset;
guint32 value;
guint n_layers;
guint n_channels;
guint n_paths = 0;
guint progress = 0;
guint max_progress;
gchar version_tag[16];
gboolean write_paths = FALSE;
GError *tmp_error = NULL;
/* write out the tag information for the image */
if (info->file_version > 0)
{
g_snprintf (version_tag, sizeof (version_tag),
"gimp xcf v%03d", info->file_version);
}
else
{
strcpy (version_tag, "gimp xcf file");
}
xcf_write_int8_check_error (info, (guint8 *) version_tag, 14, ;);
/* write out the width, height and image type information for the image */
value = pika_image_get_width (image);
xcf_write_int32_check_error (info, (guint32 *) &value, 1, ;);
value = pika_image_get_height (image);
xcf_write_int32_check_error (info, (guint32 *) &value, 1, ;);
value = pika_image_get_base_type (image);
xcf_write_int32_check_error (info, &value, 1, ;);
if (info->file_version >= 4)
{
value = pika_image_get_precision (image);
xcf_write_int32_check_error (info, &value, 1, ;);
}
if (info->file_version >= 18)
write_paths = TRUE;
/* determine the number of layers and channels in the image */
all_layers = pika_image_get_layer_list (image);
all_channels = pika_image_get_channel_list (image);
/* check and see if we have to save out the selection */
if (! pika_channel_is_empty (pika_image_get_mask (image)))
{
all_channels = g_list_append (all_channels, pika_image_get_mask (image));
}
n_layers = (guint) g_list_length (all_layers);
n_channels = (guint) g_list_length (all_channels);
if (write_paths)
{
all_paths = pika_image_get_vectors_list (image);
n_paths = (guint) g_list_length (all_paths);
}
max_progress = 1 + n_layers + n_channels + n_paths;
/* write the property information for the image */
xcf_check_error (xcf_save_image_props (info, image, error), ;);
xcf_progress_update (info);
/* 'saved_pos' is the next slot in the offset table */
saved_pos = info->cp;
/* write an empty offset table */
xcf_write_zero_offset_check_error (info,
n_layers + n_channels + 2 +
(write_paths ? n_paths + 1 : 0), ;);
/* 'offset' is where we will write the next layer or channel */
offset = info->cp;
for (list = all_layers; list; list = g_list_next (list))
{
PikaLayer *layer = list->data;
/* seek back to the next slot in the offset table and write the
* offset of the layer
*/
xcf_check_error (xcf_seek_pos (info, saved_pos, error), ;);
xcf_write_offset_check_error (info, &offset, 1, ;);
/* remember the next slot in the offset table */
saved_pos = info->cp;
/* seek to the layer offset and save the layer */
xcf_check_error (xcf_seek_pos (info, offset, error), ;);
xcf_check_error (xcf_save_layer (info, image, layer, error), ;);
/* the next layer's offset is after the layer we just wrote */
offset = info->cp;
xcf_progress_update (info);
}
/* skip a '0' in the offset table to indicate the end of the layer
* offsets
*/
saved_pos += info->bytes_per_offset;
for (list = all_channels; list; list = g_list_next (list))
{
PikaChannel *channel = list->data;
/* seek back to the next slot in the offset table and write the
* offset of the channel
*/
xcf_check_error (xcf_seek_pos (info, saved_pos, error), ;);
xcf_write_offset_check_error (info, &offset, 1, ;);
/* remember the next slot in the offset table */
saved_pos = info->cp;
/* seek to the channel offset and save the channel */
xcf_check_error (xcf_seek_pos (info, offset, error), ;);
xcf_check_error (xcf_save_channel (info, image, channel, error), ;);
/* the next channels's offset is after the channel we just wrote */
offset = info->cp;
xcf_progress_update (info);
}
if (write_paths)
{
/* skip a '0' in the offset table to indicate the end of the channel
* offsets
*/
saved_pos += info->bytes_per_offset;
for (list = all_paths; list; list = g_list_next (list))
{
PikaVectors *vectors = list->data;
/* seek back to the next slot in the offset table and write the
* offset of the channel
*/
xcf_check_error (xcf_seek_pos (info, saved_pos, error), ;);
xcf_write_offset_check_error (info, &offset, 1, ;);
/* remember the next slot in the offset table */
saved_pos = info->cp;
/* seek to the channel offset and save the channel */
xcf_check_error (xcf_seek_pos (info, offset, error), ;);
xcf_check_error (xcf_save_path (info, image, vectors, error), ;);
/* the next channels's offset is after the channel we just wrote */
offset = info->cp;
xcf_progress_update (info);
}
}
/* there is already a '0' at the end of the offset table to indicate
* the end of the channel offsets
*/
g_list_free (all_layers);
g_list_free (all_channels);
g_list_free (all_paths);
return ! g_output_stream_is_closed (info->output);
}
static gboolean
xcf_save_image_props (XcfInfo *info,
PikaImage *image,
GError **error)
{
PikaImagePrivate *private = PIKA_IMAGE_GET_PRIVATE (image);
PikaParasite *grid_parasite = NULL;
PikaParasite *meta_parasite = NULL;
GList *symmetry_parasites = NULL;
GList *iter;
PikaUnit unit = pika_image_get_unit (image);
gdouble xres;
gdouble yres;
pika_image_get_resolution (image, &xres, &yres);
/* check and see if we should save the colormap property */
if (pika_image_get_colormap_palette (image))
{
guint8 *colormap = pika_image_get_colormap (image);
xcf_check_error (xcf_save_prop (info, image, PROP_COLORMAP, error,
pika_image_get_colormap_size (image),
colormap), ;);
g_free (colormap);
}
if (info->compression != COMPRESS_NONE)
xcf_check_error (xcf_save_prop (info, image, PROP_COMPRESSION, error,
info->compression), ;);
if (pika_image_get_guides (image))
xcf_check_error (xcf_save_prop (info, image, PROP_GUIDES, error,
pika_image_get_guides (image)), ;);
if (pika_image_get_sample_points (image))
{
/* save the new property before the old one, so loading can skip
* the latter
*/
xcf_check_error (xcf_save_prop (info, image, PROP_SAMPLE_POINTS, error,
pika_image_get_sample_points (image)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_OLD_SAMPLE_POINTS, error,
pika_image_get_sample_points (image)), ;);
}
xcf_check_error (xcf_save_prop (info, image, PROP_RESOLUTION, error,
xres, yres), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_TATTOO, error,
pika_image_get_tattoo_state (image)), ;);
if (unit < pika_unit_get_number_of_built_in_units ())
xcf_check_error (xcf_save_prop (info, image, PROP_UNIT, error, unit), ;);
if (pika_container_get_n_children (pika_image_get_vectors (image)) > 0 &&
info->file_version < 18)
{
if (pika_vectors_compat_is_compatible (image))
xcf_check_error (xcf_save_prop (info, image, PROP_PATHS, error), ;);
else
xcf_check_error (xcf_save_prop (info, image, PROP_VECTORS, error), ;);
}
if (unit >= pika_unit_get_number_of_built_in_units ())
xcf_check_error (xcf_save_prop (info, image, PROP_USER_UNIT, error, unit), ;);
if (pika_image_get_grid (image))
{
PikaGrid *grid = pika_image_get_grid (image);
grid_parasite = pika_grid_to_parasite (grid);
pika_parasite_list_add (private->parasites, grid_parasite);
}
if (pika_image_get_metadata (image))
{
PikaMetadata *metadata = pika_image_get_metadata (image);
gchar *meta_string;
meta_string = pika_metadata_serialize (metadata);
if (meta_string)
{
meta_parasite = pika_parasite_new ("pika-image-metadata",
PIKA_PARASITE_PERSISTENT,
strlen (meta_string) + 1,
meta_string);
pika_parasite_list_add (private->parasites, meta_parasite);
g_free (meta_string);
}
}
if (g_list_length (pika_image_symmetry_get (image)))
{
PikaParasite *parasite = NULL;
PikaSymmetry *symmetry;
for (iter = pika_image_symmetry_get (image); iter; iter = g_list_next (iter))
{
symmetry = PIKA_SYMMETRY (iter->data);
if (G_TYPE_FROM_INSTANCE (symmetry) == PIKA_TYPE_SYMMETRY)
/* Do not save the identity symmetry. */
continue;
parasite = pika_symmetry_to_parasite (PIKA_SYMMETRY (iter->data));
pika_parasite_list_add (private->parasites, parasite);
symmetry_parasites = g_list_prepend (symmetry_parasites, parasite);
}
}
if (pika_parasite_list_length (private->parasites) > 0)
{
xcf_check_error (xcf_save_prop (info, image, PROP_PARASITES, error,
private->parasites), ;);
}
if (grid_parasite)
{
pika_parasite_list_remove (private->parasites,
pika_parasite_get_name (grid_parasite));
pika_parasite_free (grid_parasite);
}
if (meta_parasite)
{
pika_parasite_list_remove (private->parasites,
pika_parasite_get_name (meta_parasite));
pika_parasite_free (meta_parasite);
}
for (iter = symmetry_parasites; iter; iter = g_list_next (iter))
{
PikaParasite *parasite = iter->data;
pika_parasite_list_remove (private->parasites,
pika_parasite_get_name (parasite));
}
g_list_free_full (symmetry_parasites,
(GDestroyNotify) pika_parasite_free);
info->layer_sets = pika_image_get_stored_item_sets (image, PIKA_TYPE_LAYER);
info->channel_sets = pika_image_get_stored_item_sets (image, PIKA_TYPE_CHANNEL);
for (iter = info->layer_sets; iter; iter = iter->next)
xcf_check_error (xcf_save_prop (info, image, PROP_ITEM_SET, error, iter->data), ;);
for (iter = info->channel_sets; iter; iter = iter->next)
xcf_check_error (xcf_save_prop (info, image, PROP_ITEM_SET, error, iter->data), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_END, error), ;);
return TRUE;
}
static gboolean
xcf_save_layer_props (XcfInfo *info,
PikaImage *image,
PikaLayer *layer,
GError **error)
{
PikaParasiteList *parasites;
GList *iter;
gint offset_x;
gint offset_y;
if (pika_viewable_get_children (PIKA_VIEWABLE (layer)))
xcf_check_error (xcf_save_prop (info, image, PROP_GROUP_ITEM, error), ;);
if (pika_viewable_get_parent (PIKA_VIEWABLE (layer)))
{
GList *path;
path = pika_item_get_path (PIKA_ITEM (layer));
xcf_check_error (xcf_save_prop (info, image, PROP_ITEM_PATH, error,
path), ;);
g_list_free (path);
}
if (g_list_find (pika_image_get_selected_layers (image), layer))
xcf_check_error (xcf_save_prop (info, image, PROP_ACTIVE_LAYER, error), ;);
if (layer == pika_image_get_floating_selection (image))
{
info->floating_sel_drawable = pika_layer_get_floating_sel_drawable (layer);
xcf_check_error (xcf_save_prop (info, image, PROP_FLOATING_SELECTION,
error), ;);
}
xcf_check_error (xcf_save_prop (info, image, PROP_OPACITY, error,
pika_layer_get_opacity (layer)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_FLOAT_OPACITY, error,
pika_layer_get_opacity (layer)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_VISIBLE, error,
pika_item_get_visible (PIKA_ITEM (layer))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_COLOR_TAG, error,
pika_item_get_color_tag (PIKA_ITEM (layer))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_LOCK_CONTENT, error,
pika_item_get_lock_content (PIKA_ITEM (layer))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_LOCK_ALPHA, error,
pika_layer_get_lock_alpha (layer)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_LOCK_POSITION, error,
pika_item_get_lock_position (PIKA_ITEM (layer))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_LOCK_VISIBILITY, error,
pika_item_get_lock_visibility (PIKA_ITEM (layer))), ;);
if (pika_layer_get_mask (layer))
{
xcf_check_error (xcf_save_prop (info, image, PROP_APPLY_MASK, error,
pika_layer_get_apply_mask (layer)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_EDIT_MASK, error,
pika_layer_get_edit_mask (layer)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_SHOW_MASK, error,
pika_layer_get_show_mask (layer)), ;);
}
else
{
xcf_check_error (xcf_save_prop (info, image, PROP_APPLY_MASK, error,
FALSE), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_EDIT_MASK, error,
FALSE), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_SHOW_MASK, error,
FALSE), ;);
}
pika_item_get_offset (PIKA_ITEM (layer), &offset_x, &offset_y);
xcf_check_error (xcf_save_prop (info, image, PROP_OFFSETS, error,
offset_x, offset_y), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_MODE, error,
pika_layer_get_mode (layer)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_BLEND_SPACE, error,
pika_layer_get_mode (layer),
pika_layer_get_blend_space (layer)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_COMPOSITE_SPACE, error,
pika_layer_get_mode (layer),
pika_layer_get_composite_space (layer)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_COMPOSITE_MODE, error,
pika_layer_get_mode (layer),
pika_layer_get_composite_mode (layer)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_TATTOO, error,
pika_item_get_tattoo (PIKA_ITEM (layer))), ;);
if (PIKA_IS_TEXT_LAYER (layer) && PIKA_TEXT_LAYER (layer)->text)
{
PikaTextLayer *text_layer = PIKA_TEXT_LAYER (layer);
guint32 flags = pika_text_layer_get_xcf_flags (text_layer);
pika_text_layer_xcf_save_prepare (text_layer);
if (flags)
xcf_check_error (xcf_save_prop (info,
image, PROP_TEXT_LAYER_FLAGS, error,
flags), ;);
}
if (pika_viewable_get_children (PIKA_VIEWABLE (layer)))
{
gint32 flags = 0;
if (pika_viewable_get_expanded (PIKA_VIEWABLE (layer)))
flags |= XCF_GROUP_ITEM_EXPANDED;
xcf_check_error (xcf_save_prop (info,
image, PROP_GROUP_ITEM_FLAGS, error,
flags), ;);
}
parasites = pika_item_get_parasites (PIKA_ITEM (layer));
if (pika_parasite_list_length (parasites) > 0)
{
xcf_check_error (xcf_save_prop (info, image, PROP_PARASITES, error,
parasites), ;);
}
for (iter = info->layer_sets; iter; iter = iter->next)
{
PikaItemList *set = iter->data;
if (! pika_item_list_is_pattern (set, NULL))
{
GList *items = pika_item_list_get_items (set, NULL);
if (g_list_find (items, PIKA_ITEM (layer)))
xcf_check_error (xcf_save_prop (info, image, PROP_ITEM_SET_ITEM, error,
g_list_position (info->layer_sets, iter)), ;);
g_list_free (items);
}
}
xcf_check_error (xcf_save_prop (info, image, PROP_END, error), ;);
return TRUE;
}
static gboolean
xcf_save_channel_props (XcfInfo *info,
PikaImage *image,
PikaChannel *channel,
GError **error)
{
PikaParasiteList *parasites;
GList *iter;
if (g_list_find (pika_image_get_selected_channels (image), channel))
xcf_check_error (xcf_save_prop (info, image, PROP_ACTIVE_CHANNEL, error), ;);
if (channel == pika_image_get_mask (image))
xcf_check_error (xcf_save_prop (info, image, PROP_SELECTION, error), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_OPACITY, error,
pika_channel_get_opacity (channel)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_FLOAT_OPACITY, error,
pika_channel_get_opacity (channel)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_VISIBLE, error,
pika_item_get_visible (PIKA_ITEM (channel))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_COLOR_TAG, error,
pika_item_get_color_tag (PIKA_ITEM (channel))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_LOCK_CONTENT, error,
pika_item_get_lock_content (PIKA_ITEM (channel))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_LOCK_POSITION, error,
pika_item_get_lock_position (PIKA_ITEM (channel))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_LOCK_VISIBILITY, error,
pika_item_get_lock_visibility (PIKA_ITEM (channel))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_SHOW_MASKED, error,
pika_channel_get_show_masked (channel)), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_COLOR, error,
&channel->color), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_FLOAT_COLOR, error,
&channel->color), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_TATTOO, error,
pika_item_get_tattoo (PIKA_ITEM (channel))), ;);
parasites = pika_item_get_parasites (PIKA_ITEM (channel));
if (pika_parasite_list_length (parasites) > 0)
{
xcf_check_error (xcf_save_prop (info, image, PROP_PARASITES, error,
parasites), ;);
}
for (iter = info->channel_sets; iter; iter = iter->next)
{
PikaItemList *set = iter->data;
if (! pika_item_list_is_pattern (set, NULL))
{
GList *items = pika_item_list_get_items (set, NULL);
if (g_list_find (items, PIKA_ITEM (channel)))
xcf_check_error (xcf_save_prop (info, image, PROP_ITEM_SET_ITEM, error,
g_list_position (info->channel_sets, iter)), ;);
g_list_free (items);
}
}
xcf_check_error (xcf_save_prop (info, image, PROP_END, error), ;);
return TRUE;
}
static gboolean
xcf_save_path_props (XcfInfo *info,
PikaImage *image,
PikaVectors *vectors,
GError **error)
{
PikaParasiteList *parasites;
if (g_list_find (pika_image_get_selected_vectors (image), vectors))
xcf_check_error (xcf_save_prop (info, image, PROP_SELECTED_PATH, error), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_VISIBLE, error,
pika_item_get_visible (PIKA_ITEM (vectors))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_COLOR_TAG, error,
pika_item_get_color_tag (PIKA_ITEM (vectors))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_LOCK_CONTENT, error,
pika_item_get_lock_content (PIKA_ITEM (vectors))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_LOCK_POSITION, error,
pika_item_get_lock_position (PIKA_ITEM (vectors))), ;);
xcf_check_error (xcf_save_prop (info, image, PROP_TATTOO, error,
pika_item_get_tattoo (PIKA_ITEM (vectors))), ;);
parasites = pika_item_get_parasites (PIKA_ITEM (vectors));
if (pika_parasite_list_length (parasites) > 0)
{
xcf_check_error (xcf_save_prop (info, image, PROP_PARASITES, error,
parasites), ;);
}
#if 0
for (iter = info->vectors_sets; iter; iter = iter->next)
{
PikaItemList *set = iter->data;
if (! pika_item_list_is_pattern (set, NULL))
{
GList *items = pika_item_list_get_items (set, NULL);
if (g_list_find (items, PIKA_ITEM (vectors)))
xcf_check_error (xcf_save_prop (info, image, PROP_ITEM_SET_ITEM, error,
g_list_position (info->layer_sets, iter)), ;);
g_list_free (items);
}
}
#endif
xcf_check_error (xcf_save_prop (info, image, PROP_END, error), ;);
return TRUE;
}
static gboolean
xcf_save_prop (XcfInfo *info,
PikaImage *image,
PropType prop_type,
GError **error,
...)
{
guint32 size;
va_list args;
GError *tmp_error = NULL;
va_start (args, error);
switch (prop_type)
{
case PROP_END:
size = 0;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
break;
case PROP_COLORMAP:
{
guint32 n_colors = va_arg (args, guint32);
guchar *colors = va_arg (args, guchar *);
size = 4 + n_colors * 3;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &n_colors, 1, va_end (args));
xcf_write_int8_check_error (info, colors, n_colors * 3, va_end (args));
}
break;
case PROP_ACTIVE_LAYER:
case PROP_ACTIVE_CHANNEL:
case PROP_SELECTED_PATH:
case PROP_SELECTION:
case PROP_GROUP_ITEM:
size = 0;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
break;
case PROP_FLOATING_SELECTION:
size = info->bytes_per_offset;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
info->floating_sel_offset = info->cp;
xcf_write_zero_offset_check_error (info, 1, va_end (args));
break;
case PROP_OPACITY:
{
gdouble opacity = va_arg (args, gdouble);
guint32 uint_opacity = opacity * 255.999;
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &uint_opacity, 1, va_end (args));
}
break;
case PROP_FLOAT_OPACITY:
{
gfloat opacity = va_arg (args, gdouble);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_float_check_error (info, &opacity, 1, va_end (args));
}
break;
case PROP_MODE:
{
gint32 mode = va_arg (args, gint32);
size = 4;
if (mode == PIKA_LAYER_MODE_OVERLAY_LEGACY)
mode = PIKA_LAYER_MODE_SOFTLIGHT_LEGACY;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, (guint32 *) &mode, 1, va_end (args));
}
break;
case PROP_BLEND_SPACE:
{
PikaLayerMode mode = va_arg (args, PikaLayerMode);
gint32 blend_space = va_arg (args, gint32);
G_STATIC_ASSERT (PIKA_LAYER_COLOR_SPACE_AUTO == 0);
/* if blend_space is AUTO, save the negative of the actual value AUTO
* maps to for the given mode, so that we can correctly load it even if
* the mapping changes in the future.
*/
if (blend_space == PIKA_LAYER_COLOR_SPACE_AUTO)
blend_space = -pika_layer_mode_get_blend_space (mode);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, (guint32 *) &blend_space, 1, va_end (args));
}
break;
case PROP_COMPOSITE_SPACE:
{
PikaLayerMode mode = va_arg (args, PikaLayerMode);
gint32 composite_space = va_arg (args, gint32);
G_STATIC_ASSERT (PIKA_LAYER_COLOR_SPACE_AUTO == 0);
/* if composite_space is AUTO, save the negative of the actual value
* AUTO maps to for the given mode, so that we can correctly load it
* even if the mapping changes in the future.
*/
if (composite_space == PIKA_LAYER_COLOR_SPACE_AUTO)
composite_space = -pika_layer_mode_get_composite_space (mode);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, (guint32 *) &composite_space, 1, va_end (args));
}
break;
case PROP_COMPOSITE_MODE:
{
PikaLayerMode mode = va_arg (args, PikaLayerMode);
gint32 composite_mode = va_arg (args, gint32);
G_STATIC_ASSERT (PIKA_LAYER_COMPOSITE_AUTO == 0);
/* if composite_mode is AUTO, save the negative of the actual value
* AUTO maps to for the given mode, so that we can correctly load it
* even if the mapping changes in the future.
*/
if (composite_mode == PIKA_LAYER_COMPOSITE_AUTO)
composite_mode = -pika_layer_mode_get_composite_mode (mode);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, (guint32 *) &composite_mode, 1, va_end (args));
}
break;
case PROP_VISIBLE:
{
guint32 visible = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &visible, 1, va_end (args));
}
break;
case PROP_LINKED:
/* This code should not be called any longer. */
g_return_val_if_reached (FALSE);
#if 0
{
guint32 linked = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &linked, 1, va_end (args));
}
#endif
break;
case PROP_COLOR_TAG:
{
guint32 color_tag = va_arg (args, gint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &color_tag, 1, va_end (args));
}
break;
case PROP_LOCK_CONTENT:
{
guint32 lock_content = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &lock_content, 1, va_end (args));
}
break;
case PROP_LOCK_ALPHA:
{
guint32 lock_alpha = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &lock_alpha, 1, va_end (args));
}
break;
case PROP_LOCK_POSITION:
{
guint32 lock_position = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &lock_position, 1, va_end (args));
}
break;
case PROP_LOCK_VISIBILITY:
{
guint32 lock_visibility = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &lock_visibility, 1, va_end (args));
}
break;
case PROP_APPLY_MASK:
{
guint32 apply_mask = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &apply_mask, 1, va_end (args));
}
break;
case PROP_EDIT_MASK:
{
guint32 edit_mask = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &edit_mask, 1, va_end (args));
}
break;
case PROP_SHOW_MASK:
{
guint32 show_mask = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &show_mask, 1, va_end (args));
}
break;
case PROP_SHOW_MASKED:
{
guint32 show_masked = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &show_masked, 1, va_end (args));
}
break;
case PROP_OFFSETS:
{
gint32 offsets[2];
offsets[0] = va_arg (args, gint32);
offsets[1] = va_arg (args, gint32);
size = 8;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, (guint32 *) offsets, 2, va_end (args));
}
break;
case PROP_COLOR:
{
PikaRGB *color = va_arg (args, PikaRGB *);
guchar col[3];
pika_rgb_get_uchar (color, &col[0], &col[1], &col[2]);
size = 3;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int8_check_error (info, col, 3, va_end (args));
}
break;
case PROP_FLOAT_COLOR:
{
PikaRGB *color = va_arg (args, PikaRGB *);
gfloat col[3];
col[0] = color->r;
col[1] = color->g;
col[2] = color->b;
size = 3 * 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_float_check_error (info, col, 3, va_end (args));
}
break;
case PROP_COMPRESSION:
{
guint8 compression = (guint8) va_arg (args, guint32);
size = 1;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int8_check_error (info, &compression, 1, va_end (args));
}
break;
case PROP_GUIDES:
{
GList *guides = va_arg (args, GList *);
gint n_guides = g_list_length (guides);
GList *iter;
for (iter = guides; iter; iter = g_list_next (iter))
{
/* Do not save custom guides. */
if (pika_guide_is_custom (PIKA_GUIDE (iter->data)))
n_guides--;
}
if (n_guides > 0)
{
size = n_guides * (4 + 1);
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
for (; guides; guides = g_list_next (guides))
{
PikaGuide *guide = guides->data;
gint32 position = pika_guide_get_position (guide);
gint8 orientation;
if (pika_guide_is_custom (guide))
continue;
switch (pika_guide_get_orientation (guide))
{
case PIKA_ORIENTATION_HORIZONTAL:
orientation = XCF_ORIENTATION_HORIZONTAL;
break;
case PIKA_ORIENTATION_VERTICAL:
orientation = XCF_ORIENTATION_VERTICAL;
break;
default:
g_warning ("%s: skipping guide with bad orientation",
G_STRFUNC);
continue;
}
xcf_write_int32_check_error (info, (guint32 *) &position, 1, va_end (args));
xcf_write_int8_check_error (info, (guint8 *) &orientation, 1, va_end (args));
}
}
}
break;
case PROP_SAMPLE_POINTS:
{
GList *sample_points = va_arg (args, GList *);
gint n_sample_points = g_list_length (sample_points);
size = n_sample_points * (5 * 4);
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
for (; sample_points; sample_points = g_list_next (sample_points))
{
PikaSamplePoint *sample_point = sample_points->data;
gint32 x, y;
PikaColorPickMode pick_mode;
guint32 padding[2] = { 0, };
pika_sample_point_get_position (sample_point, &x, &y);
pick_mode = pika_sample_point_get_pick_mode (sample_point);
xcf_write_int32_check_error (info, (guint32 *) &x, 1, va_end (args));
xcf_write_int32_check_error (info, (guint32 *) &y, 1, va_end (args));
xcf_write_int32_check_error (info, (guint32 *) &pick_mode, 1, va_end (args));
xcf_write_int32_check_error (info, (guint32 *) padding, 2, va_end (args));
}
}
break;
case PROP_OLD_SAMPLE_POINTS:
{
GList *sample_points = va_arg (args, GList *);
gint n_sample_points = g_list_length (sample_points);
size = n_sample_points * (4 + 4);
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
for (; sample_points; sample_points = g_list_next (sample_points))
{
PikaSamplePoint *sample_point = sample_points->data;
gint32 x, y;
pika_sample_point_get_position (sample_point, &x, &y);
xcf_write_int32_check_error (info, (guint32 *) &x, 1, va_end (args));
xcf_write_int32_check_error (info, (guint32 *) &y, 1, va_end (args));
}
}
break;
case PROP_RESOLUTION:
{
gfloat resolution[2];
resolution[0] = va_arg (args, double);
resolution[1] = va_arg (args, double);
size = 2 * 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_float_check_error (info, resolution, 2, va_end (args));
}
break;
case PROP_TATTOO:
{
guint32 tattoo = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &tattoo, 1, va_end (args));
}
break;
case PROP_PARASITES:
{
PikaParasiteList *list = va_arg (args, PikaParasiteList *);
if (pika_parasite_list_persistent_length (list) > 0)
{
goffset base;
goffset pos;
size = 0;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
/* because we don't know how much room the parasite list
* will take we save the file position and write the
* length later
*/
pos = info->cp;
xcf_write_int32_check_error (info, &size, 1, va_end (args));
base = info->cp;
xcf_check_error (xcf_save_parasite_list (info, list, error), va_end (args));
size = info->cp - base;
/* go back to the saved position and write the length */
xcf_check_error (xcf_seek_pos (info, pos, error), va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_check_error (xcf_seek_pos (info, base + size, error), va_end (args));
}
}
break;
case PROP_UNIT:
{
guint32 unit = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &unit, 1, va_end (args));
}
break;
case PROP_PATHS:
{
goffset base;
goffset pos;
size = 0;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
/* because we don't know how much room the paths list will
* take we save the file position and write the length later
*/
pos = info->cp;
xcf_write_int32_check_error (info, &size, 1, va_end (args));
base = info->cp;
xcf_check_error (xcf_save_old_paths (info, image, error), va_end (args));
size = info->cp - base;
/* go back to the saved position and write the length */
xcf_check_error (xcf_seek_pos (info, pos, error), va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_check_error (xcf_seek_pos (info, base + size, error), va_end (args));
}
break;
case PROP_USER_UNIT:
{
PikaUnit unit = va_arg (args, guint32);
const gchar *unit_strings[5];
gfloat factor;
guint32 digits;
/* write the entire unit definition */
unit_strings[0] = pika_unit_get_identifier (unit);
factor = pika_unit_get_factor (unit);
digits = pika_unit_get_digits (unit);
unit_strings[1] = pika_unit_get_symbol (unit);
unit_strings[2] = pika_unit_get_abbreviation (unit);
unit_strings[3] = pika_unit_get_singular (unit);
unit_strings[4] = pika_unit_get_plural (unit);
size =
2 * 4 +
strlen (unit_strings[0]) ? strlen (unit_strings[0]) + 5 : 4 +
strlen (unit_strings[1]) ? strlen (unit_strings[1]) + 5 : 4 +
strlen (unit_strings[2]) ? strlen (unit_strings[2]) + 5 : 4 +
strlen (unit_strings[3]) ? strlen (unit_strings[3]) + 5 : 4 +
strlen (unit_strings[4]) ? strlen (unit_strings[4]) + 5 : 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_float_check_error (info, &factor, 1, va_end (args));
xcf_write_int32_check_error (info, &digits, 1, va_end (args));
xcf_write_string_check_error (info, (gchar **) unit_strings, 5, va_end (args));
}
break;
case PROP_VECTORS:
{
goffset base;
goffset pos;
size = 0;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
/* because we don't know how much room the paths list will
* take we save the file position and write the length later
*/
pos = info->cp;
xcf_write_int32_check_error (info, &size, 1, va_end (args));
base = info->cp;
xcf_check_error (xcf_save_old_vectors (info, image, error), va_end (args));
size = info->cp - base;
/* go back to the saved position and write the length */
xcf_check_error (xcf_seek_pos (info, pos, error), va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_check_error (xcf_seek_pos (info, base + size, error), va_end (args));
}
break;
case PROP_TEXT_LAYER_FLAGS:
{
guint32 flags = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &flags, 1, va_end (args));
}
break;
case PROP_ITEM_PATH:
{
GList *path = va_arg (args, GList *);
size = 4 * g_list_length (path);
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
while (path)
{
guint32 index = GPOINTER_TO_UINT (path->data);
xcf_write_int32_check_error (info, &index, 1, va_end (args));
path = g_list_next (path);
}
}
break;
case PROP_GROUP_ITEM_FLAGS:
{
guint32 flags = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &flags, 1, va_end (args));
}
break;
case PROP_ITEM_SET:
{
PikaItemList *set = va_arg (args, PikaItemList *);
const gchar *string;
guint32 method;
guint32 item_type;
goffset base;
goffset pos;
size = 0;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
pos = info->cp;
xcf_write_int32_check_error (info, &size, 1, va_end (args));
base = info->cp;
if (pika_item_list_get_item_type (set) == PIKA_TYPE_LAYER)
item_type = 0;
else if (pika_item_list_get_item_type (set) == PIKA_TYPE_CHANNEL)
item_type = 1;
else if (pika_item_list_get_item_type (set) == PIKA_TYPE_VECTORS)
item_type = 2;
else
g_return_val_if_reached (FALSE);
xcf_write_int32_check_error (info, &item_type, 1, va_end (args));
if (! pika_item_list_is_pattern (set, &method))
method = G_MAXUINT32;
xcf_write_int32_check_error (info, &method, 1, va_end (args));
string = pika_object_get_name (set);
xcf_write_string_check_error (info, (gchar **) &string, 1, va_end (args));
/* go back to the saved position and write the length */
size = info->cp - base;
xcf_check_error (xcf_seek_pos (info, pos, error), va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_check_error (xcf_seek_pos (info, base + size, error), va_end (args));
}
break;
case PROP_ITEM_SET_ITEM:
{
guint32 set_n = va_arg (args, guint32);
size = 4;
xcf_write_prop_type_check_error (info, prop_type, va_end (args));
xcf_write_int32_check_error (info, &size, 1, va_end (args));
xcf_write_int32_check_error (info, &set_n, 1, va_end (args));
}
break;
}
va_end (args);
return TRUE;
}
static gboolean
xcf_save_layer (XcfInfo *info,
PikaImage *image,
PikaLayer *layer,
GError **error)
{
goffset saved_pos;
goffset offset;
guint32 value;
const gchar *string;
GError *tmp_error = NULL;
/* check and see if this is the drawable that the floating
* selection is attached to.
*/
if (PIKA_DRAWABLE (layer) == info->floating_sel_drawable)
{
saved_pos = info->cp;
xcf_check_error (xcf_seek_pos (info, info->floating_sel_offset, error), ;);
xcf_write_offset_check_error (info, &saved_pos, 1, ;);
xcf_check_error (xcf_seek_pos (info, saved_pos, error), ;);
}
/* write out the width, height and image type information for the layer */
value = pika_item_get_width (PIKA_ITEM (layer));
xcf_write_int32_check_error (info, &value, 1, ;);
value = pika_item_get_height (PIKA_ITEM (layer));
xcf_write_int32_check_error (info, &value, 1, ;);
value = pika_babl_format_get_image_type (pika_drawable_get_format (PIKA_DRAWABLE (layer)));
xcf_write_int32_check_error (info, &value, 1, ;);
/* write out the layers name */
string = pika_object_get_name (layer);
xcf_write_string_check_error (info, (gchar **) &string, 1, ;);
/* write out the layer properties */
xcf_save_layer_props (info, image, layer, error);
/* write out the layer tile hierarchy */
offset = info->cp + 2 * info->bytes_per_offset;
xcf_write_offset_check_error (info, &offset, 1, ;);
saved_pos = info->cp;
/* write a zero layer mask offset */
xcf_write_zero_offset_check_error (info, 1, ;);
xcf_check_error (xcf_save_buffer (info, image,
pika_drawable_get_buffer (PIKA_DRAWABLE (layer)),
error), ;);
offset = info->cp;
/* write out the layer mask */
if (pika_layer_get_mask (layer))
{
PikaLayerMask *mask = pika_layer_get_mask (layer);
xcf_check_error (xcf_seek_pos (info, saved_pos, error), ;);
xcf_write_offset_check_error (info, &offset, 1, ;);
xcf_check_error (xcf_seek_pos (info, offset, error), ;);
xcf_check_error (xcf_save_channel (info, image, PIKA_CHANNEL (mask),
error), ;);
}
return TRUE;
}
static gboolean
xcf_save_channel (XcfInfo *info,
PikaImage *image,
PikaChannel *channel,
GError **error)
{
goffset saved_pos;
goffset offset;
guint32 value;
const gchar *string;
GError *tmp_error = NULL;
/* check and see if this is the drawable that the floating
* selection is attached to.
*/
if (PIKA_DRAWABLE (channel) == info->floating_sel_drawable)
{
saved_pos = info->cp;
xcf_check_error (xcf_seek_pos (info, info->floating_sel_offset, error), ;);
xcf_write_offset_check_error (info, &saved_pos, 1, ;);
xcf_check_error (xcf_seek_pos (info, saved_pos, error), ;);
}
/* write out the width and height information for the channel */
value = pika_item_get_width (PIKA_ITEM (channel));
xcf_write_int32_check_error (info, &value, 1, ;);
value = pika_item_get_height (PIKA_ITEM (channel));
xcf_write_int32_check_error (info, &value, 1, ;);
/* write out the channels name */
string = pika_object_get_name (channel);
xcf_write_string_check_error (info, (gchar **) &string, 1, ;);
/* write out the channel properties */
xcf_save_channel_props (info, image, channel, error);
/* write out the channel tile hierarchy */
offset = info->cp + info->bytes_per_offset;
xcf_write_offset_check_error (info, &offset, 1, ;);
xcf_check_error (xcf_save_buffer (info, image,
pika_drawable_get_buffer (PIKA_DRAWABLE (channel)),
error), ;);
return TRUE;
}
static gint
xcf_calc_levels (gint size,
gint tile_size)
{
gint levels;
levels = 1;
while (size > tile_size)
{
size /= 2;
levels += 1;
}
return levels;
}
static gboolean
xcf_save_buffer (XcfInfo *info,
PikaImage *image,
GeglBuffer *buffer,
GError **error)
{
const Babl *format;
goffset saved_pos;
goffset offset;
guint32 width;
guint32 height;
guint32 bpp;
gint i;
gint nlevels;
gint tmp1, tmp2;
GError *tmp_error = NULL;
format = gegl_buffer_get_format (buffer);
width = gegl_buffer_get_width (buffer);
height = gegl_buffer_get_height (buffer);
bpp = babl_format_get_bytes_per_pixel (format);
xcf_write_int32_check_error (info, (guint32 *) &width, 1, ;);
xcf_write_int32_check_error (info, (guint32 *) &height, 1, ;);
xcf_write_int32_check_error (info, (guint32 *) &bpp, 1, ;);
tmp1 = xcf_calc_levels (width, XCF_TILE_WIDTH);
tmp2 = xcf_calc_levels (height, XCF_TILE_HEIGHT);
nlevels = MAX (tmp1, tmp2);
/* 'saved_pos' is the next slot in the offset table */
saved_pos = info->cp;
/* write an empty offset table */
xcf_write_zero_offset_check_error (info, nlevels + 1, ;);
/* 'offset' is where we will write the next level */
offset = info->cp;
for (i = 0; i < nlevels; i++)
{
/* seek back to the next slot in the offset table and write the
* offset of the level
*/
xcf_check_error (xcf_seek_pos (info, saved_pos, error), ;);
xcf_write_offset_check_error (info, &offset, 1, ;);
/* remember the next slot in the offset table */
saved_pos = info->cp;
/* seek to the level offset and save the level */
xcf_check_error (xcf_seek_pos (info, offset, error), ;);
if (i == 0)
{
/* write out the level. */
xcf_check_error (xcf_save_level (info, image, buffer, error), ;);
}
else
{
/* fake an empty level */
tmp1 = 0;
width /= 2;
height /= 2;
xcf_write_int32_check_error (info, (guint32 *) &width, 1, ;);
xcf_write_int32_check_error (info, (guint32 *) &height, 1, ;);
/* NOTE: this should be an offset, not an int32! however...
* since there are already 64-bit-offsets XCFs out there in
* which this field is 32-bit, and since it's not actually
* being used, we're going to keep this field 32-bit for the
* dummy levels, to remain consistent. if we ever make use
* of levels above the first, we should turn this field into
* an offset, and bump the xcf version.
*/
xcf_write_int32_check_error (info, (guint32 *) &tmp1, 1, ;);
}
/* the next level's offset if after the level we just wrote */
offset = info->cp;
}
/* there is already a '0' at the end of the offset table to indicate
* the end of the level offsets
*/
return TRUE;
}
static gboolean
xcf_save_level (XcfInfo *info,
PikaImage *image,
GeglBuffer *buffer,
GError **error)
{
const Babl *format;
goffset *offset_table;
goffset *next_offset;
goffset saved_pos;
goffset offset;
goffset max_data_length;
guint32 width;
guint32 height;
gint bpp;
gint n_tile_rows;
gint n_tile_cols;
guint ntiles;
gint num_processors;
gint i, j, k;
GError *tmp_error = NULL;
num_processors = PIKA_GEGL_CONFIG (image->pika->config)->num_processors;
format = gegl_buffer_get_format (buffer);
width = gegl_buffer_get_width (buffer);
height = gegl_buffer_get_height (buffer);
bpp = babl_format_get_bytes_per_pixel (format);
xcf_write_int32_check_error (info, (guint32 *) &width, 1, ;);
xcf_write_int32_check_error (info, (guint32 *) &height, 1, ;);
saved_pos = info->cp;
/* maximal allowable size of on-disk tile data. make it somewhat bigger than
* the uncompressed tile size, to allow for the possibility of negative
* compression. xcf_load_level() enforces this limit.
*/
max_data_length = XCF_TILE_WIDTH * XCF_TILE_HEIGHT * bpp *
XCF_TILE_MAX_DATA_LENGTH_FACTOR /* = 1.5, currently */;
n_tile_rows = pika_gegl_buffer_get_n_tile_rows (buffer, XCF_TILE_HEIGHT);
n_tile_cols = pika_gegl_buffer_get_n_tile_cols (buffer, XCF_TILE_WIDTH);
ntiles = n_tile_rows * n_tile_cols;
/* allocate an offset table so we don't have to seek back after each
* tile, see bug #686862. allocate ntiles + 1 slots because a zero
* offset indicates the offset table's end.
* Do not use g_alloca since it may cause Stack Overflow on
* large images, see issue #6138.
*/
offset_table = g_malloc0 ((ntiles + 1) * sizeof (goffset));
next_offset = offset_table;
/* 'saved_pos' is the offset of the tile offset table */
saved_pos = info->cp;
/* write an empty offset table */
xcf_write_zero_offset_check_error (info, ntiles + 1, ;);
/* 'offset' is where we will write the next tile */
offset = info->cp;
if (info->compression == COMPRESS_RLE ||
info->compression == COMPRESS_ZLIB)
{
/* parallel implementation */
XcfJobData *job_data;
guchar *switch_out_data;
gint out_data_len[XCF_TILE_SAVE_BATCH_SIZE];
GThreadPool *pool;
GAsyncQueue *queue;
gint num_tasks = num_processors * 2;
gint tile_size = XCF_TILE_WIDTH * XCF_TILE_HEIGHT * bpp;
gint out_data_max_size;
gint next_tile = 0;
out_data_max_size = tile_size * XCF_TILE_MAX_DATA_LENGTH_FACTOR;
/* Prepare an additional out_data to quickly switch. */
switch_out_data = g_malloc (out_data_max_size * XCF_TILE_SAVE_BATCH_SIZE);
/* The free function passed to the queue and thread pool will likely never
* be used. It would mean the thread pool is unfinidhed or the result
* queue still has data which would mean we had to interrupt the save,
* i.e. there is a bug in our code.
*/
queue = g_async_queue_new_full ((GDestroyNotify) xcf_save_free_job_data);
pool = g_thread_pool_new_full ((GFunc) xcf_save_tile_parallel,
queue,
(GDestroyNotify) xcf_save_free_job_data,
num_processors, TRUE, NULL);
i = 0;
/* We push more tasks than there are threads, ensuring threads always have
* something to do!
*/
for (j = 0; j < num_tasks && i < ntiles; j++)
{
job_data = g_malloc (sizeof (XcfJobData ));
job_data->buffer = buffer;
job_data->file_version = info->file_version;
job_data->max_out_data_len = out_data_max_size;
job_data->compress = (info->compression == COMPRESS_RLE) ?
xcf_save_tile_rle : xcf_save_tile_zlib;
job_data->tile_data = g_malloc (tile_size);
job_data->out_data = g_malloc (out_data_max_size * XCF_TILE_SAVE_BATCH_SIZE);
job_data->tile = i;
job_data->batch_size = MIN (XCF_TILE_SAVE_BATCH_SIZE, ntiles - i);
i += job_data->batch_size;
g_thread_pool_push (pool, job_data, NULL);
}
/* Continue pushing tasks and writing tasks as long as we have tiles to
* process.
*/
while (i < ntiles)
{
while ((job_data = g_async_queue_pop (queue)))
{
if (next_tile == job_data->tile)
{
guchar *tmp_out_data;
gint batch_size;
tmp_out_data = job_data->out_data;
job_data->out_data = switch_out_data;
switch_out_data = tmp_out_data;
batch_size = job_data->batch_size;
for (k = 0; k < batch_size; k++)
out_data_len[k] = job_data->out_data_len[k];
/* First immediately push a new task for the thread pool,
* ensuring it always has work to do.
*/
job_data->tile = i;
job_data->batch_size = MIN (XCF_TILE_SAVE_BATCH_SIZE, ntiles - i);
i += job_data->batch_size;
g_thread_pool_push (pool, job_data, NULL);
/* Now write the data. */
for (k = 0; k < batch_size; k++)
{
*next_offset++ = offset;
xcf_write_int8_check_error (info,
switch_out_data + out_data_max_size * k,
out_data_len[k], ;);
if (info->cp < offset || info->cp - offset > max_data_length)
{
g_message ("xcf: invalid tile data length: %" G_GOFFSET_FORMAT,
info->cp - offset);
g_thread_pool_free (pool, TRUE, TRUE);
g_async_queue_unref (queue);
g_free (offset_table);
return FALSE;
}
offset = info->cp;
}
next_tile += batch_size;
break;
}
else
{
g_async_queue_push_sorted (queue, job_data,
(GCompareDataFunc) xcf_save_sort_job_data,
NULL);
}
}
}
g_free (switch_out_data);
/* Finally wait for all remaining tasks to write. */
while ((job_data = g_async_queue_pop (queue)))
{
if (next_tile == job_data->tile)
{
gboolean done = FALSE;
for (k = 0; k < job_data->batch_size; k++)
{
*next_offset++ = offset;
xcf_write_int8_check_error (info,
job_data->out_data + out_data_max_size * k,
job_data->out_data_len[k], ;);
if (info->cp < offset || info->cp - offset > max_data_length)
{
g_message ("xcf: invalid tile data length: %" G_GOFFSET_FORMAT,
info->cp - offset);
g_thread_pool_free (pool, TRUE, TRUE);
g_async_queue_unref (queue);
g_free (offset_table);
return FALSE;
}
offset = info->cp;
}
next_tile += job_data->batch_size;
if (job_data->tile + job_data->batch_size >= ntiles)
done = TRUE;
xcf_save_free_job_data (job_data);
if (done)
break;
}
else
{
g_async_queue_push_sorted (queue, job_data,
(GCompareDataFunc) xcf_save_sort_job_data,
NULL);
}
}
g_thread_pool_free (pool, FALSE, TRUE);
g_async_queue_unref (queue);
}
else
{
/* non parallel implementation */
for (i = 0; i < ntiles; i++)
{
GeglRectangle rect;
/* store the offset in the table and increment the next pointer */
*next_offset++ = offset;
pika_gegl_buffer_get_tile_rect (buffer,
XCF_TILE_WIDTH, XCF_TILE_HEIGHT,
i, &rect);
/* write out the tile. */
switch (info->compression)
{
case COMPRESS_NONE:
xcf_check_error (xcf_save_tile (info, buffer, &rect, format,
error), ;);
break;
case COMPRESS_FRACTAL:
g_warning ("xcf: fractal compression unimplemented");
g_free (offset_table);
return FALSE;
default:
g_warning ("xcf: unsupported compression algorithm");
g_free (offset_table);
return FALSE;
}
/* make sure the on-disk tile data didn't end up being too big.
* xcf_load_level() would refuse to load the file if it did.
*/
if (info->cp < offset || info->cp - offset > max_data_length)
{
g_message ("xcf: invalid tile data length: %" G_GOFFSET_FORMAT,
info->cp - offset);
g_free (offset_table);
return FALSE;
}
/* the next tile's offset is after the tile we just wrote */
offset = info->cp;
}
}
/* seek back to the offset table and write it */
xcf_check_error (xcf_seek_pos (info, saved_pos, error), ;);
xcf_write_offset_check_error (info, offset_table, ntiles + 1, ;);
/* seek to the end of the file */
xcf_check_error (xcf_seek_pos (info, offset, error), ;);
g_free (offset_table);
return TRUE;
}
static gboolean
xcf_save_tile (XcfInfo *info,
GeglBuffer *buffer,
GeglRectangle *tile_rect,
const Babl *format,
GError **error)
{
gint bpp = babl_format_get_bytes_per_pixel (format);
gint tile_size = bpp * tile_rect->width * tile_rect->height;
guchar *tile_data = g_alloca (tile_size);
GError *tmp_error = NULL;
gegl_buffer_get (buffer, tile_rect, 1.0, format, tile_data,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
if (info->file_version <= 11)
{
xcf_write_int8_check_error (info, tile_data, tile_size, ;);
}
else
{
gint n_components = babl_format_get_n_components (format);
xcf_write_component_check_error (info, bpp / n_components, tile_data,
tile_size / bpp * n_components, ;);
}
return TRUE;
}
static void
xcf_save_free_job_data (XcfJobData *data)
{
g_free (data->out_data);
g_free (data->tile_data);
g_free (data);
}
static gint
xcf_save_sort_job_data (XcfJobData *data1,
XcfJobData *data2,
gpointer user_data)
{
if (data1->tile < data2->tile)
return -1;
else if (data1->tile > data2->tile)
return 1;
else
return 0;
}
static void
xcf_save_tile_parallel (XcfJobData *job_data,
GAsyncQueue *queue)
{
const Babl *format;
GeglRectangle tile_rect;
gint bpp;
format = gegl_buffer_get_format (job_data->buffer);
bpp = babl_format_get_bytes_per_pixel (format);
for (gint i = 0; i < job_data->batch_size; ++i)
{
pika_gegl_buffer_get_tile_rect (job_data->buffer,
XCF_TILE_WIDTH,
XCF_TILE_HEIGHT,
job_data->tile + i,
&tile_rect);
/* only single thread can create tile data when cache miss */
gegl_buffer_get (job_data->buffer, &tile_rect, 1.0, format,
job_data->tile_data,
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
if (job_data->file_version >= 12)
{
gint n_components = babl_format_get_n_components (format);
gint tile_size = bpp * tile_rect.width * tile_rect.height;
xcf_write_to_be (bpp / n_components, job_data->tile_data,
tile_size / bpp * n_components);
}
job_data->compress (&tile_rect, job_data->tile_data, format,
job_data->out_data + job_data->max_out_data_len * i,
job_data->max_out_data_len,
job_data->out_data_len + i);
}
g_async_queue_push_sorted (queue, job_data,
(GCompareDataFunc) xcf_save_sort_job_data,
NULL);
}
static void
xcf_save_tile_rle (GeglRectangle *tile_rect,
guchar *tile_data,
const Babl *format,
guchar *rlebuf,
gint rlebuf_max_len,
gint *lenptr)
{
gint bpp = babl_format_get_bytes_per_pixel (format);
gint len = 0;
gint i, j;
for (i = 0; i < bpp; i++)
{
const guchar *data = tile_data + i;
gint state = 0;
gint length = 0;
gint count = 0;
gint size = tile_rect->width * tile_rect->height;
guint last = -1;
while (size > 0)
{
switch (state)
{
case 0:
/* in state 0 we try to find a long sequence of
* matching values.
*/
if ((length == 32768) ||
((size - length) <= 0) ||
((length > 1) && (last != *data)))
{
count += length;
if (length >= 128)
{
rlebuf[len++] = 127;
rlebuf[len++] = (length >> 8);
rlebuf[len++] = length & 0x00FF;
rlebuf[len++] = last;
}
else
{
rlebuf[len++] = length - 1;
rlebuf[len++] = last;
}
size -= length;
length = 0;
}
else if ((length == 1) && (last != *data))
{
state = 1;
}
break;
case 1:
/* in state 1 we try and find a long sequence of
* non-matching values.
*/
if ((length == 32768) ||
((size - length) == 0) ||
((length > 0) && (last == *data) &&
((size - length) == 1 || last == data[bpp])))
{
const guchar *t;
/* if we came here because of a new run, backup one */
if (!((length == 32768) || ((size - length) == 0)))
{
length--;
data -= bpp;
}
count += length;
state = 0;
if (length >= 128)
{
rlebuf[len++] = 255 - 127;
rlebuf[len++] = (length >> 8);
rlebuf[len++] = length & 0x00FF;
}
else
{
rlebuf[len++] = 255 - (length - 1);
}
t = data - length * bpp;
for (j = 0; j < length; j++)
{
rlebuf[len++] = *t;
t += bpp;
}
size -= length;
length = 0;
}
break;
}
if (size > 0)
{
length += 1;
last = *data;
data += bpp;
}
}
if (count != (tile_rect->width * tile_rect->height))
g_message ("xcf: uh oh! xcf rle tile saving error: %d", count);
}
*lenptr = len;
}
static void
xcf_save_tile_zlib (GeglRectangle *tile_rect,
guchar *tile_data,
const Babl *format,
guchar *zlib_data,
gint zlib_data_max_len,
gint *lenptr)
{
gint bpp = babl_format_get_bytes_per_pixel (format);
gint tile_size = bpp * tile_rect->width * tile_rect->height;
/* The buffer for compressed data. */
z_stream strm;
int action;
int status;
*lenptr = 0;
/* allocate deflate state */
strm.zalloc = Z_NULL;
strm.zfree = Z_NULL;
strm.opaque = Z_NULL;
status = deflateInit (&strm, Z_DEFAULT_COMPRESSION);
if (status != Z_OK)
return;
strm.next_in = tile_data;
strm.avail_in = tile_size;
strm.next_out = zlib_data;
strm.avail_out = zlib_data_max_len;
action = Z_NO_FLUSH;
while (status == Z_OK || status == Z_BUF_ERROR)
{
if (strm.avail_in == 0)
{
/* Finish the encoding. */
action = Z_FINISH;
}
status = deflate (&strm, action);
if (status == Z_STREAM_END || status == Z_BUF_ERROR)
{
size_t write_size = zlib_data_max_len - strm.avail_out;
*lenptr = write_size;
/* Reset next_out and avail_out. */
strm.next_out = zlib_data;
strm.avail_out = zlib_data_max_len;
}
else if (status != Z_OK)
{
g_printerr ("xcf: tile compression failed: %s", zError (status));
deflateEnd (&strm);
return;
}
}
deflateEnd (&strm);
}
static gboolean
xcf_save_parasite (XcfInfo *info,
PikaParasite *parasite,
GError **error)
{
if (pika_parasite_is_persistent (parasite))
{
guint32 value;
const gchar *string;
GError *tmp_error = NULL;
gconstpointer parasite_data;
string = pika_parasite_get_name (parasite);
xcf_write_string_check_error (info, (gchar **) &string, 1, ;);
value = pika_parasite_get_flags (parasite);
xcf_write_int32_check_error (info, &value, 1, ;);
parasite_data = pika_parasite_get_data (parasite, &value);
xcf_write_int32_check_error (info, &value, 1, ;);
xcf_write_int8_check_error (info, parasite_data, value, ;);
}
return TRUE;
}
typedef struct
{
XcfInfo *info;
GError *error;
} XcfParasiteData;
static void
xcf_save_parasite_func (gchar *key,
PikaParasite *parasite,
XcfParasiteData *data)
{
if (! data->error)
xcf_save_parasite (data->info, parasite, &data->error);
}
static gboolean
xcf_save_parasite_list (XcfInfo *info,
PikaParasiteList *list,
GError **error)
{
XcfParasiteData data;
data.info = info;
data.error = NULL;
pika_parasite_list_foreach (list, (GHFunc) xcf_save_parasite_func, &data);
if (data.error)
{
g_propagate_error (error, data.error);
return FALSE;
}
return TRUE;
}
/* This is the oldest way to save paths. */
static gboolean
xcf_save_old_paths (XcfInfo *info,
PikaImage *image,
GError **error)
{
PikaVectors *active_vectors = NULL;
guint32 num_paths;
guint32 active_index = 0;
GList *list;
GError *tmp_error = NULL;
/* Write out the following:-
*
* last_selected_row (gint)
* number_of_paths (gint)
*
* then each path:-
*/
num_paths = pika_container_get_n_children (pika_image_get_vectors (image));
if (pika_image_get_selected_vectors (image))
{
active_vectors = pika_image_get_selected_vectors (image)->data;
/* Having more than 1 selected vectors should not have happened in this
* code path but let's not break saving, only produce a critical.
*/
if (g_list_length (pika_image_get_selected_vectors (image)) > 1)
g_critical ("%s: this code path should not happen with multiple paths selected",
G_STRFUNC);
}
if (active_vectors)
active_index = pika_container_get_child_index (pika_image_get_vectors (image),
PIKA_OBJECT (active_vectors));
xcf_write_int32_check_error (info, &active_index, 1, ;);
xcf_write_int32_check_error (info, &num_paths, 1, ;);
for (list = pika_image_get_vectors_iter (image);
list;
list = g_list_next (list))
{
PikaVectors *vectors = list->data;
gchar *name;
guint32 locked;
guint8 state;
guint32 version;
guint32 pathtype;
guint32 tattoo;
PikaVectorsCompatPoint *points;
guint32 num_points;
guint32 closed;
gint i;
/*
* name (string)
* locked (gint)
* state (gchar)
* closed (gint)
* number points (gint)
* version (gint)
* pathtype (gint)
* tattoo (gint)
* then each point.
*/
points = pika_vectors_compat_get_points (vectors,
(gint32 *) &num_points,
(gint32 *) &closed);
/* if no points are generated because of a faulty path we should
* skip saving the path - this is unfortunately impossible, because
* we already saved the number of paths and I won't start seeking
* around to fix that cruft */
name = (gchar *) pika_object_get_name (vectors);
/* The 'linked' concept does not exist anymore in PIKA 3.0 and over. */
locked = 0;
state = closed ? 4 : 2; /* EDIT : ADD (editing state, 1.2 compat) */
version = 3;
pathtype = 1; /* BEZIER (1.2 compat) */
tattoo = pika_item_get_tattoo (PIKA_ITEM (vectors));
xcf_write_string_check_error (info, &name, 1, ;);
xcf_write_int32_check_error (info, &locked, 1, ;);
xcf_write_int8_check_error (info, &state, 1, ;);
xcf_write_int32_check_error (info, &closed, 1, ;);
xcf_write_int32_check_error (info, &num_points, 1, ;);
xcf_write_int32_check_error (info, &version, 1, ;);
xcf_write_int32_check_error (info, &pathtype, 1, ;);
xcf_write_int32_check_error (info, &tattoo, 1, ;);
for (i = 0; i < num_points; i++)
{
gfloat x;
gfloat y;
x = points[i].x;
y = points[i].y;
/*
* type (gint)
* x (gfloat)
* y (gfloat)
*/
xcf_write_int32_check_error (info, &points[i].type, 1, ;);
xcf_write_float_check_error (info, &x, 1, ;);
xcf_write_float_check_error (info, &y, 1, ;);
}
g_free (points);
}
return TRUE;
}
/* This is an older way to save paths, though more recent than
* xcf_save_old_paths(). It used to be the normal path storing format until all
* 2.10 versions. It changed with PIKA 3.0.
*/
static gboolean
xcf_save_old_vectors (XcfInfo *info,
PikaImage *image,
GError **error)
{
PikaVectors *active_vectors = NULL;
guint32 version = 1;
guint32 active_index = 0;
guint32 num_paths;
GList *list;
GList *stroke_list;
GError *tmp_error = NULL;
/* Write out the following:-
*
* version (gint)
* active_index (gint)
* num_paths (gint)
*
* then each path:-
*/
if (pika_image_get_selected_vectors (image))
{
active_vectors = pika_image_get_selected_vectors (image)->data;
/* Having more than 1 selected vectors should not have happened in this
* code path but let's not break saving, only produce a critical.
*/
if (g_list_length (pika_image_get_selected_vectors (image)) > 1)
g_critical ("%s: this code path should not happen with multiple paths selected",
G_STRFUNC);
}
if (active_vectors)
active_index = pika_container_get_child_index (pika_image_get_vectors (image),
PIKA_OBJECT (active_vectors));
num_paths = pika_container_get_n_children (pika_image_get_vectors (image));
xcf_write_int32_check_error (info, &version, 1, ;);
xcf_write_int32_check_error (info, &active_index, 1, ;);
xcf_write_int32_check_error (info, &num_paths, 1, ;);
for (list = pika_image_get_vectors_iter (image);
list;
list = g_list_next (list))
{
PikaVectors *vectors = list->data;
PikaParasiteList *parasites;
const gchar *name;
guint32 tattoo;
guint32 visible;
guint32 linked;
guint32 num_parasites;
guint32 num_strokes;
/*
* name (string)
* tattoo (gint)
* visible (gint)
* linked (gint)
* num_parasites (gint)
* num_strokes (gint)
*
* then each parasite
* then each stroke
*/
name = pika_object_get_name (vectors);
visible = pika_item_get_visible (PIKA_ITEM (vectors));
/* The 'linked' concept does not exist anymore in PIKA 3.0 and over. */
linked = 0;
tattoo = pika_item_get_tattoo (PIKA_ITEM (vectors));
parasites = pika_item_get_parasites (PIKA_ITEM (vectors));
num_parasites = pika_parasite_list_persistent_length (parasites);
num_strokes = g_queue_get_length (vectors->strokes);
xcf_write_string_check_error (info, (gchar **) &name, 1, ;);
xcf_write_int32_check_error (info, &tattoo, 1, ;);
xcf_write_int32_check_error (info, &visible, 1, ;);
xcf_write_int32_check_error (info, &linked, 1, ;);
xcf_write_int32_check_error (info, &num_parasites, 1, ;);
xcf_write_int32_check_error (info, &num_strokes, 1, ;);
xcf_check_error (xcf_save_parasite_list (info, parasites, error), ;);
for (stroke_list = g_list_first (vectors->strokes->head);
stroke_list;
stroke_list = g_list_next (stroke_list))
{
PikaStroke *stroke = stroke_list->data;
guint32 stroke_type;
guint32 closed;
guint32 num_axes;
GArray *control_points;
gint i;
guint32 type;
gfloat coords[6];
/*
* stroke_type (gint)
* closed (gint)
* num_axes (gint)
* num_control_points (gint)
*
* then each control point.
*/
if (PIKA_IS_BEZIER_STROKE (stroke))
{
stroke_type = XCF_STROKETYPE_BEZIER_STROKE;
num_axes = 2; /* hardcoded, might be increased later */
}
else
{
g_printerr ("Skipping unknown stroke type!\n");
continue;
}
control_points = pika_stroke_control_points_get (stroke,
(gint32 *) &closed);
xcf_write_int32_check_error (info, &stroke_type, 1, ;);
xcf_write_int32_check_error (info, &closed, 1, ;);
xcf_write_int32_check_error (info, &num_axes, 1, ;);
xcf_write_int32_check_error (info, &control_points->len, 1, ;);
for (i = 0; i < control_points->len; i++)
{
PikaAnchor *anchor;
anchor = & (g_array_index (control_points, PikaAnchor, i));
type = anchor->type;
coords[0] = anchor->position.x;
coords[1] = anchor->position.y;
coords[2] = anchor->position.pressure;
coords[3] = anchor->position.xtilt;
coords[4] = anchor->position.ytilt;
coords[5] = anchor->position.wheel;
/*
* type (gint)
*
* the first num_axis elements of:
* [0] x (gfloat)
* [1] y (gfloat)
* [2] pressure (gfloat)
* [3] xtilt (gfloat)
* [4] ytilt (gfloat)
* [5] wheel (gfloat)
*/
xcf_write_int32_check_error (info, &type, 1, ;);
xcf_write_float_check_error (info, coords, num_axes, ;);
}
g_array_free (control_points, TRUE);
}
}
return TRUE;
}
static gboolean
xcf_save_path (XcfInfo *info,
PikaImage *image,
PikaVectors *vectors,
GError **error)
{
const gchar *string;
GList *stroke_list;
GError *tmp_error = NULL;
/* Version of the path format is always 1 for now. */
guint32 version = 1;
guint32 num_strokes;
guint32 size;
goffset base;
goffset pos;
/* write out the path name */
string = pika_object_get_name (vectors);
xcf_write_string_check_error (info, (gchar **) &string, 1, ;);
/* Payload size */
size = 0;
pos = info->cp;
xcf_write_int32_check_error (info, &size, 1, ;);
base = info->cp;
/* write out the path properties */
xcf_save_path_props (info, image, vectors, error);
/* Path version */
xcf_write_int32_check_error (info, &version, 1, ;);
/* Write out the number of strokes. */
num_strokes = g_queue_get_length (vectors->strokes);
xcf_write_int32_check_error (info, &num_strokes, 1, ;);
for (stroke_list = g_list_first (vectors->strokes->head);
stroke_list;
stroke_list = g_list_next (stroke_list))
{
PikaStroke *stroke = stroke_list->data;
guint32 stroke_type;
guint32 closed;
guint32 num_axes;
GArray *control_points;
gint i;
guint32 type;
gfloat coords[6];
/*
* stroke_type (gint)
* closed (gint)
* num_axes (gint)
* num_control_points (gint)
*
* then each control point.
*/
if (PIKA_IS_BEZIER_STROKE (stroke))
{
stroke_type = XCF_STROKETYPE_BEZIER_STROKE;
num_axes = 2; /* hardcoded, might be increased later */
}
else
{
g_printerr ("Skipping unknown stroke type!\n");
continue;
}
control_points = pika_stroke_control_points_get (stroke,
(gint32 *) &closed);
/* Stroke type. */
xcf_write_int32_check_error (info, &stroke_type, 1, ;);
/* close path or not? */
xcf_write_int32_check_error (info, &closed, 1, ;);
/* Number of floats given for each point. */
xcf_write_int32_check_error (info, &num_axes, 1, ;);
/* Number of control points. */
xcf_write_int32_check_error (info, &control_points->len, 1, ;);
for (i = 0; i < control_points->len; i++)
{
PikaAnchor *anchor;
anchor = & (g_array_index (control_points, PikaAnchor, i));
type = anchor->type;
coords[0] = anchor->position.x;
coords[1] = anchor->position.y;
coords[2] = anchor->position.pressure;
coords[3] = anchor->position.xtilt;
coords[4] = anchor->position.ytilt;
coords[5] = anchor->position.wheel;
/*
* type (gint)
*
* the first num_axis elements of:
* [0] x (gfloat)
* [1] y (gfloat)
* [2] pressure (gfloat)
* [3] xtilt (gfloat)
* [4] ytilt (gfloat)
* [5] wheel (gfloat)
*/
xcf_write_int32_check_error (info, &type, 1, ;);
xcf_write_float_check_error (info, coords, num_axes, ;);
}
g_array_free (control_points, TRUE);
}
/* go back to the saved position and write the length */
size = info->cp - base;
xcf_check_error (xcf_seek_pos (info, pos, error), ;);
xcf_write_int32_check_error (info, &size, 1, ;);
xcf_check_error (xcf_seek_pos (info, base + size, error), ;);
return TRUE;
}
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