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-rw-r--r--app/file-data/file-data-gbr.c417
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diff --git a/app/file-data/file-data-gbr.c b/app/file-data/file-data-gbr.c
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+/* GIMP - The GNU Image Manipulation Program
+ * 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 <cairo.h>
+#include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gegl.h>
+
+#include "libgimpbase/gimpbase.h"
+#include "libgimpcolor/gimpcolor.h"
+
+#include "core/core-types.h"
+
+#include "core/gimp.h"
+#include "core/gimpbrush.h"
+#include "core/gimpbrush-load.h"
+#include "core/gimpbrush-private.h"
+#include "core/gimpdrawable.h"
+#include "core/gimpimage.h"
+#include "core/gimplayer-new.h"
+#include "core/gimpimage-resize.h"
+#include "core/gimpparamspecs.h"
+#include "core/gimptempbuf.h"
+
+#include "pdb/gimpprocedure.h"
+
+#include "file-data-gbr.h"
+
+#include "gimp-intl.h"
+
+
+/* local function prototypes */
+
+static GimpImage * file_gbr_brush_to_image (Gimp *gimp,
+ GimpBrush *brush);
+static GimpBrush * file_gbr_image_to_brush (GimpImage *image,
+ GimpDrawable *drawable,
+ const gchar *name,
+ gdouble spacing);
+
+
+/* public functions */
+
+GimpValueArray *
+file_gbr_load_invoker (GimpProcedure *procedure,
+ Gimp *gimp,
+ GimpContext *context,
+ GimpProgress *progress,
+ const GimpValueArray *args,
+ GError **error)
+{
+ GimpValueArray *return_vals;
+ GimpImage *image = NULL;
+ const gchar *uri;
+ GFile *file;
+ GInputStream *input;
+ GError *my_error = NULL;
+
+ gimp_set_busy (gimp);
+
+ uri = g_value_get_string (gimp_value_array_index (args, 1));
+ file = g_file_new_for_uri (uri);
+
+ input = G_INPUT_STREAM (g_file_read (file, NULL, &my_error));
+
+ if (input)
+ {
+ GimpBrush *brush = gimp_brush_load_brush (context, file, input, error);
+
+ if (brush)
+ {
+ image = file_gbr_brush_to_image (gimp, brush);
+ g_object_unref (brush);
+ }
+
+ g_object_unref (input);
+ }
+ else
+ {
+ g_propagate_prefixed_error (error, my_error,
+ _("Could not open '%s' for reading: "),
+ gimp_file_get_utf8_name (file));
+ }
+
+ g_object_unref (file);
+
+ return_vals = gimp_procedure_get_return_values (procedure, image != NULL,
+ error ? *error : NULL);
+
+ if (image)
+ gimp_value_set_image (gimp_value_array_index (return_vals, 1), image);
+
+ gimp_unset_busy (gimp);
+
+ return return_vals;
+}
+
+GimpValueArray *
+file_gbr_save_invoker (GimpProcedure *procedure,
+ Gimp *gimp,
+ GimpContext *context,
+ GimpProgress *progress,
+ const GimpValueArray *args,
+ GError **error)
+{
+ GimpValueArray *return_vals;
+ GimpImage *image;
+ GimpDrawable *drawable;
+ GimpBrush *brush;
+ const gchar *uri;
+ const gchar *name;
+ GFile *file;
+ gint spacing;
+ gboolean success;
+
+ gimp_set_busy (gimp);
+
+ image = gimp_value_get_image (gimp_value_array_index (args, 1), gimp);
+ drawable = gimp_value_get_drawable (gimp_value_array_index (args, 2), gimp);
+ uri = g_value_get_string (gimp_value_array_index (args, 3));
+ spacing = g_value_get_int (gimp_value_array_index (args, 5));
+ name = g_value_get_string (gimp_value_array_index (args, 6));
+
+ file = g_file_new_for_uri (uri);
+
+ brush = file_gbr_image_to_brush (image, drawable, name, spacing);
+
+ gimp_data_set_file (GIMP_DATA (brush), file, TRUE, TRUE);
+
+ success = gimp_data_save (GIMP_DATA (brush), error);
+
+ g_object_unref (brush);
+ g_object_unref (file);
+
+ return_vals = gimp_procedure_get_return_values (procedure, success,
+ error ? *error : NULL);
+
+ gimp_unset_busy (gimp);
+
+ return return_vals;
+}
+
+GimpLayer *
+file_gbr_brush_to_layer (GimpImage *image,
+ GimpBrush *brush)
+{
+ GimpLayer *layer;
+ const Babl *format;
+ gboolean alpha;
+ gint width;
+ gint height;
+ gint image_width;
+ gint image_height;
+ GimpTempBuf *mask;
+ GimpTempBuf *pixmap;
+ GeglBuffer *buffer;
+
+ g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
+ g_return_val_if_fail (GIMP_IS_BRUSH (brush), NULL);
+
+ mask = gimp_brush_get_mask (brush);
+ pixmap = gimp_brush_get_pixmap (brush);
+
+ if (pixmap)
+ alpha = TRUE;
+ else
+ alpha = FALSE;
+
+ width = gimp_temp_buf_get_width (mask);
+ height = gimp_temp_buf_get_height (mask);
+
+ image_width = gimp_image_get_width (image);
+ image_height = gimp_image_get_height (image);
+
+ if (width > image_width || height > image_height)
+ {
+ gint new_width = MAX (image_width, width);
+ gint new_height = MAX (image_height, height);
+
+ gimp_image_resize (image, gimp_get_user_context (image->gimp),
+ new_width, new_height,
+ (new_width - image_width) / 2,
+ (new_height - image_height) / 2,
+ NULL);
+
+ image_width = new_width;
+ image_height = new_height;
+ }
+
+ format = gimp_image_get_layer_format (image, alpha);
+
+ layer = gimp_layer_new (image, width, height, format,
+ gimp_object_get_name (brush),
+ 1.0, GIMP_LAYER_MODE_NORMAL);
+
+ gimp_item_set_offset (GIMP_ITEM (layer),
+ (image_width - width) / 2,
+ (image_height - height) / 2);
+
+ buffer = gimp_drawable_get_buffer (GIMP_DRAWABLE (layer));
+
+ if (pixmap)
+ {
+ guchar *pixmap_data;
+ guchar *mask_data;
+ guchar *p;
+ guchar *m;
+ gint i;
+
+ gegl_buffer_set (buffer, GEGL_RECTANGLE (0, 0, width, height), 0,
+ babl_format ("R'G'B' u8"),
+ gimp_temp_buf_get_data (pixmap), GEGL_AUTO_ROWSTRIDE);
+
+ pixmap_data = gegl_buffer_linear_open (buffer, NULL, NULL, NULL);
+ mask_data = gimp_temp_buf_get_data (mask);
+
+ for (i = 0, p = pixmap_data, m = mask_data;
+ i < width * height;
+ i++, p += 4, m += 1)
+ {
+ p[3] = *m;
+ }
+
+ gegl_buffer_linear_close (buffer, pixmap_data);
+ }
+ else
+ {
+ guchar *mask_data = gimp_temp_buf_get_data (mask);
+ gint i;
+
+ for (i = 0; i < width * height; i++)
+ mask_data[i] = 255 - mask_data[i];
+
+ gegl_buffer_set (buffer, GEGL_RECTANGLE (0, 0, width, height), 0,
+ babl_format ("Y' u8"),
+ mask_data, GEGL_AUTO_ROWSTRIDE);
+ }
+
+ return layer;
+}
+
+GimpBrush *
+file_gbr_drawable_to_brush (GimpDrawable *drawable,
+ const GeglRectangle *rect,
+ const gchar *name,
+ gdouble spacing)
+{
+ GimpBrush *brush;
+ GeglBuffer *buffer;
+ GimpTempBuf *mask;
+ GimpTempBuf *pixmap = NULL;
+ gint width;
+ gint height;
+
+ g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
+ g_return_val_if_fail (rect != NULL, NULL);
+
+ buffer = gimp_drawable_get_buffer (drawable);
+ width = rect->width;
+ height = rect->height;
+
+ brush = g_object_new (GIMP_TYPE_BRUSH,
+ "name", name,
+ "mime-type", "image/x-gimp-gbr",
+ "spacing", spacing,
+ NULL);
+
+ mask = gimp_temp_buf_new (width, height, babl_format ("Y u8"));
+
+ if (gimp_drawable_is_gray (drawable))
+ {
+ guchar *m = gimp_temp_buf_get_data (mask);
+ gint i;
+
+ if (gimp_drawable_has_alpha (drawable))
+ {
+ GeglBufferIterator *iter;
+ GimpRGB white;
+
+ gimp_rgba_set_uchar (&white, 255, 255, 255, 255);
+
+ iter = gegl_buffer_iterator_new (buffer, rect, 0,
+ babl_format ("Y'A u8"),
+ GEGL_ACCESS_READ, GEGL_ABYSS_NONE,
+ 1);
+
+ while (gegl_buffer_iterator_next (iter))
+ {
+ guint8 *data = (guint8 *) iter->items[0].data;
+ gint j;
+
+ for (j = 0; j < iter->length; j++)
+ {
+ GimpRGB gray;
+ gint x, y;
+ gint dest;
+
+ gimp_rgba_set_uchar (&gray,
+ data[0], data[0], data[0],
+ data[1]);
+
+ gimp_rgb_composite (&gray, &white,
+ GIMP_RGB_COMPOSITE_BEHIND);
+
+ x = iter->items[0].roi.x + j % iter->items[0].roi.width;
+ y = iter->items[0].roi.y + j / iter->items[0].roi.width;
+
+ dest = y * width + x;
+
+ gimp_rgba_get_uchar (&gray, &m[dest], NULL, NULL, NULL);
+
+ data += 2;
+ }
+ }
+ }
+ else
+ {
+ gegl_buffer_get (buffer, rect, 1.0,
+ babl_format ("Y' u8"), m,
+ GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+ }
+
+ /* invert */
+ for (i = 0; i < width * height; i++)
+ m[i] = 255 - m[i];
+ }
+ else
+ {
+ pixmap = gimp_temp_buf_new (width, height, babl_format ("R'G'B' u8"));
+
+ gegl_buffer_get (buffer, rect, 1.0,
+ babl_format ("R'G'B' u8"),
+ gimp_temp_buf_get_data (pixmap),
+ GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+
+ gegl_buffer_get (buffer, rect, 1.0,
+ babl_format ("A u8"),
+ gimp_temp_buf_get_data (mask),
+ GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
+ }
+
+
+ brush->priv->mask = mask;
+ brush->priv->pixmap = pixmap;
+
+ return brush;
+}
+
+
+/* private functions */
+
+static GimpImage *
+file_gbr_brush_to_image (Gimp *gimp,
+ GimpBrush *brush)
+{
+ GimpImage *image;
+ GimpLayer *layer;
+ const gchar *name;
+ GimpImageBaseType base_type;
+ gint width;
+ gint height;
+ GimpTempBuf *mask = gimp_brush_get_mask (brush);
+ GimpTempBuf *pixmap = gimp_brush_get_pixmap (brush);
+ GimpParasite *parasite;
+
+ if (pixmap)
+ base_type = GIMP_RGB;
+ else
+ base_type = GIMP_GRAY;
+
+ name = gimp_object_get_name (brush);
+ width = gimp_temp_buf_get_width (mask);
+ height = gimp_temp_buf_get_height (mask);
+
+ image = gimp_image_new (gimp, width, height, base_type,
+ GIMP_PRECISION_U8_GAMMA);
+
+ parasite = gimp_parasite_new ("gimp-brush-name",
+ GIMP_PARASITE_PERSISTENT,
+ strlen (name) + 1, name);
+ gimp_image_parasite_attach (image, parasite, FALSE);
+ gimp_parasite_free (parasite);
+
+ layer = file_gbr_brush_to_layer (image, brush);
+ gimp_image_add_layer (image, layer, NULL, 0, FALSE);
+
+ return image;
+}
+
+static GimpBrush *
+file_gbr_image_to_brush (GimpImage *image,
+ GimpDrawable *drawable,
+ const gchar *name,
+ gdouble spacing)
+{
+ gint width = gimp_item_get_width (GIMP_ITEM (drawable));
+ gint height = gimp_item_get_height (GIMP_ITEM (drawable));
+
+ return file_gbr_drawable_to_brush (drawable,
+ GEGL_RECTANGLE (0, 0, width, height),
+ name, spacing);
+}