static GimpTempBuf *
gimp_buffer_get_new_preview (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height)
{
GimpBuffer *buffer = GIMP_BUFFER (viewable);
const Babl *format = gimp_buffer_get_format (buffer);
GimpTempBuf *preview;
if (babl_format_is_palette (format))
format = gimp_babl_format (GIMP_RGB, GIMP_PRECISION_U8_GAMMA,
babl_format_has_alpha (format));
else
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
gimp_babl_precision (GIMP_COMPONENT_TYPE_U8,
gimp_babl_format_get_linear (format)),
babl_format_has_alpha (format));
preview = gimp_temp_buf_new (width, height, format);
gegl_buffer_get (buffer->buffer, GEGL_RECTANGLE (0, 0, width, height),
MIN ((gdouble) width / (gdouble) gimp_buffer_get_width (buffer),
(gdouble) height / (gdouble) gimp_buffer_get_height (buffer)),
format,
gimp_temp_buf_get_data (preview),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_NONE);
return preview;
}
const Babl *
gimp_drawable_get_preview_format (GimpDrawable *drawable)
{
gboolean alpha;
gboolean linear;
g_return_val_if_fail (GIMP_IS_DRAWABLE (drawable), NULL);
alpha = gimp_drawable_has_alpha (drawable);
linear = gimp_drawable_get_linear (drawable);
switch (gimp_drawable_get_base_type (drawable))
{
case GIMP_GRAY:
return gimp_babl_format (GIMP_GRAY,
gimp_babl_precision (GIMP_COMPONENT_TYPE_U8,
linear),
alpha);
case GIMP_RGB:
return gimp_babl_format (GIMP_RGB,
gimp_babl_precision (GIMP_COMPONENT_TYPE_U8,
linear),
alpha);
case GIMP_INDEXED:
if (alpha)
return babl_format ("R'G'B'A u8");
else
return babl_format ("R'G'B' u8");
}
g_return_val_if_reached (NULL);
}
GimpTempBuf *
gimp_image_get_new_preview (GimpViewable *viewable,
GimpContext *context,
gint width,
gint height)
{
GimpImage *image = GIMP_IMAGE (viewable);
const Babl *format;
gboolean linear;
GimpTempBuf *buf;
gdouble scale_x;
gdouble scale_y;
scale_x = (gdouble) width / (gdouble) gimp_image_get_width (image);
scale_y = (gdouble) height / (gdouble) gimp_image_get_height (image);
format = gimp_projectable_get_format (GIMP_PROJECTABLE (image));
linear = gimp_babl_format_get_linear (format);
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
gimp_babl_precision (GIMP_COMPONENT_TYPE_U8,
linear),
babl_format_has_alpha (format));
buf = gimp_temp_buf_new (width, height, format);
gegl_buffer_get (gimp_pickable_get_buffer (GIMP_PICKABLE (image)),
GEGL_RECTANGLE (0, 0, width, height),
MIN (scale_x, scale_y),
gimp_temp_buf_get_format (buf),
gimp_temp_buf_get_data (buf),
GEGL_AUTO_ROWSTRIDE, GEGL_ABYSS_CLAMP);
return buf;
}
const Babl *
gimp_babl_compat_u8_mask_format (const Babl *format)
{
g_return_val_if_fail (format != NULL, NULL);
return gimp_babl_format (gimp_babl_format_get_base_type (format),
GIMP_PRECISION_U8_LINEAR,
FALSE,
NULL);
}
const Babl *
gimp_babl_compat_u8_format (const Babl *format)
{
g_return_val_if_fail (format != NULL, NULL);
/* indexed images only exist in u8, return the same format */
if (babl_format_is_palette (format))
return format;
return gimp_babl_format (gimp_babl_format_get_base_type (format),
GIMP_PRECISION_U8,
babl_format_has_alpha (format));
}
/**
* gimp_projection_estimate_memsize:
* @type: the projectable's base type
* @precision: the projectable's precision
* @width: projection width
* @height: projection height
*
* Calculates a rough estimate of the memory that is required for the
* projection of an image with the given @width and @height.
*
* Return value: a rough estimate of the memory requirements.
**/
gint64
gimp_projection_estimate_memsize (GimpImageBaseType type,
GimpPrecision precision,
gint width,
gint height)
{
const Babl *format;
gint64 bytes;
if (type == GIMP_INDEXED)
type = GIMP_RGB;
format = gimp_babl_format (type, precision, TRUE);
bytes = babl_format_get_bytes_per_pixel (format);
/* The pyramid levels constitute a geometric sum with a ratio of 1/4. */
return bytes * (gint64) width * (gint64) height * 1.33;
}
static const Babl *
choose_format (GeglBuffer *buffer,
GimpSelectCriterion select_criterion,
gint *n_components,
gboolean *has_alpha)
{
const Babl *format = gegl_buffer_get_format (buffer);
*has_alpha = babl_format_has_alpha (format);
switch (select_criterion)
{
case GIMP_SELECT_CRITERION_COMPOSITE:
if (babl_format_is_palette (format))
format = babl_format ("R'G'B'A float");
else
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
GIMP_PRECISION_FLOAT_GAMMA,
*has_alpha);
break;
case GIMP_SELECT_CRITERION_R:
case GIMP_SELECT_CRITERION_G:
case GIMP_SELECT_CRITERION_B:
case GIMP_SELECT_CRITERION_A:
format = babl_format ("R'G'B'A float");
break;
case GIMP_SELECT_CRITERION_H:
case GIMP_SELECT_CRITERION_S:
case GIMP_SELECT_CRITERION_V:
format = babl_format ("HSVA float");
break;
default:
g_return_val_if_reached (NULL);
break;
}
*n_components = babl_format_get_n_components (format);
return format;
}
static void
gimp_color_frame_update (GimpColorFrame *frame)
{
const gchar *names[GIMP_COLOR_FRAME_ROWS] = { NULL, };
gchar **values = NULL;
gboolean has_alpha;
gint i;
has_alpha = babl_format_has_alpha (frame->sample_format);
if (frame->sample_valid)
{
gimp_color_area_set_color (GIMP_COLOR_AREA (frame->color_area),
&frame->color);
}
switch (frame->frame_mode)
{
case GIMP_COLOR_FRAME_MODE_PIXEL:
{
GimpImageBaseType base_type;
base_type = gimp_babl_format_get_base_type (frame->sample_format);
if (frame->sample_valid)
{
const Babl *print_format = NULL;
guchar print_pixel[32];
switch (gimp_babl_format_get_precision (frame->sample_format))
{
case GIMP_PRECISION_U8_GAMMA:
if (babl_format_is_palette (frame->sample_format))
{
print_format = gimp_babl_format (GIMP_RGB,
GIMP_PRECISION_U8_GAMMA,
has_alpha);
break;
}
/* else fall thru */
case GIMP_PRECISION_U8_LINEAR:
case GIMP_PRECISION_U16_LINEAR:
case GIMP_PRECISION_U16_GAMMA:
case GIMP_PRECISION_U32_LINEAR:
case GIMP_PRECISION_U32_GAMMA:
case GIMP_PRECISION_FLOAT_LINEAR:
case GIMP_PRECISION_FLOAT_GAMMA:
case GIMP_PRECISION_DOUBLE_LINEAR:
case GIMP_PRECISION_DOUBLE_GAMMA:
print_format = frame->sample_format;
break;
case GIMP_PRECISION_HALF_GAMMA:
print_format = gimp_babl_format (base_type,
GIMP_PRECISION_FLOAT_GAMMA,
has_alpha);
break;
case GIMP_PRECISION_HALF_LINEAR:
print_format = gimp_babl_format (base_type,
GIMP_PRECISION_FLOAT_LINEAR,
has_alpha);
break;
}
if (frame->sample_average)
{
/* FIXME: this is broken: can't use the averaged sRGB GimpRGB
* value for displaying pixel values when color management
* is enabled
*/
gimp_rgba_get_pixel (&frame->color, print_format, print_pixel);
}
else
{
babl_process (babl_fish (frame->sample_format, print_format),
frame->pixel, print_pixel, 1);
}
values = gimp_babl_print_pixel (print_format, print_pixel);
}
if (base_type == GIMP_GRAY)
{
names[0] = _("Value:");
if (has_alpha)
names[1] = _("Alpha:");
}
else
{
names[0] = _("Red:");
names[1] = _("Green:");
names[2] = _("Blue:");
if (has_alpha)
names[3] = _("Alpha:");
if (babl_format_is_palette (frame->sample_format))
{
names[4] = _("Index:");
if (frame->sample_valid)
{
gchar **v = g_new0 (gchar *, 6);
gchar **tmp = values;
memcpy (v, values, 4 * sizeof (gchar *));
values = v;
g_free (tmp);
if (! frame->sample_average)
values[4] = g_strdup_printf ("%d", frame->pixel[0]);
}
}
}
}
GtkWidget *
color_profile_dialog_new (ColorProfileDialogType dialog_type,
GimpImage *image,
GimpContext *context,
GtkWidget *parent,
GimpProgress *progress)
{
ProfileDialog *dialog;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *expander;
GtkWidget *label;
GimpColorProfile *src_profile;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
dialog = g_slice_new0 (ProfileDialog);
dialog->dialog_type = dialog_type;
dialog->image = image;
dialog->progress = progress;
dialog->config = image->gimp->config->color_management;
if (saved_intent == -1)
{
dialog->intent = GIMP_COLOR_RENDERING_INTENT_RELATIVE_COLORIMETRIC;
dialog->bpc = TRUE;
}
else
{
dialog->intent = saved_intent;
dialog->bpc = saved_bpc;
}
switch (dialog_type)
{
const Babl *format;
case COLOR_PROFILE_DIALOG_ASSIGN_PROFILE:
dialog->dialog =
gimp_viewable_dialog_new (GIMP_VIEWABLE (image), context,
_("Assign ICC Color Profile"),
"gimp-image-color-profile-assign",
NULL,
_("Assign a color profile to the image"),
parent,
gimp_standard_help_func,
GIMP_HELP_IMAGE_COLOR_PROFILE_ASSIGN,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
_("_Assign"), GTK_RESPONSE_OK,
NULL);
dialog->builtin_profile =
gimp_image_get_builtin_color_profile (dialog->image);
break;
case COLOR_PROFILE_DIALOG_CONVERT_TO_PROFILE:
dialog->dialog =
gimp_viewable_dialog_new (GIMP_VIEWABLE (image), context,
_("Convert to ICC Color Profile"),
"gimp-image-color-profile-convert",
NULL,
_("Convert the image to a color profile"),
parent,
gimp_standard_help_func,
GIMP_HELP_IMAGE_COLOR_PROFILE_CONVERT,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_CONVERT, GTK_RESPONSE_OK,
NULL);
dialog->builtin_profile =
gimp_image_get_builtin_color_profile (dialog->image);
break;
case COLOR_PROFILE_DIALOG_CONVERT_TO_RGB:
dialog->dialog =
gimp_viewable_dialog_new (GIMP_VIEWABLE (image), context,
_("RGB Conversion"),
"gimp-image-convert-rgb",
GIMP_STOCK_CONVERT_RGB,
_("Convert Image to RGB"),
parent,
gimp_standard_help_func,
GIMP_HELP_IMAGE_CONVERT_RGB,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_CONVERT, GTK_RESPONSE_OK,
NULL);
format = gimp_babl_format (GIMP_RGB,
gimp_image_get_precision (dialog->image),
TRUE);
dialog->builtin_profile = gimp_babl_format_get_color_profile (format);
break;
case COLOR_PROFILE_DIALOG_CONVERT_TO_GRAY:
dialog->dialog =
gimp_viewable_dialog_new (GIMP_VIEWABLE (image), context,
_("Grayscale Conversion"),
"gimp-image-convert-gray",
GIMP_STOCK_CONVERT_GRAYSCALE,
_("Convert Image to Grayscale"),
parent,
gimp_standard_help_func,
GIMP_HELP_IMAGE_CONVERT_GRAYSCALE,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_CONVERT, GTK_RESPONSE_OK,
NULL);
format = gimp_babl_format (GIMP_GRAY,
gimp_image_get_precision (dialog->image),
TRUE);
dialog->builtin_profile = gimp_babl_format_get_color_profile (format);
break;
}
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog->dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog->dialog), FALSE);
g_object_weak_ref (G_OBJECT (dialog->dialog),
(GWeakNotify) color_profile_dialog_free, dialog);
g_signal_connect (dialog->dialog, "response",
G_CALLBACK (color_profile_dialog_response),
dialog);
dialog->main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (dialog->main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog->dialog))),
dialog->main_vbox, TRUE, TRUE, 0);
gtk_widget_show (dialog->main_vbox);
frame = gimp_frame_new (_("Current Color Profile"));
gtk_box_pack_start (GTK_BOX (dialog->main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
src_profile = gimp_color_managed_get_color_profile (GIMP_COLOR_MANAGED (image));
label = gimp_color_profile_label_new (src_profile);
gtk_container_add (GTK_CONTAINER (frame), label);
gtk_widget_show (label);
frame = gimp_frame_new (dialog_type == COLOR_PROFILE_DIALOG_ASSIGN_PROFILE ?
_("Assign") : _("Convert to"));
gtk_box_pack_start (GTK_BOX (dialog->main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
dialog->combo = color_profile_combo_box_new (dialog);
gtk_box_pack_start (GTK_BOX (vbox), dialog->combo, FALSE, FALSE, 0);
gtk_widget_show (dialog->combo);
expander = gtk_expander_new_with_mnemonic (_("Profile _details"));
gtk_box_pack_start (GTK_BOX (vbox), expander, FALSE, FALSE, 0);
gtk_widget_show (expander);
dialog->dest_view = gimp_color_profile_view_new ();
gtk_container_add (GTK_CONTAINER (expander), dialog->dest_view);
gtk_widget_show (dialog->dest_view);
g_signal_connect (dialog->combo, "changed",
G_CALLBACK (color_profile_dest_changed),
dialog);
color_profile_dest_changed (dialog->combo, dialog);
if (dialog_type == COLOR_PROFILE_DIALOG_CONVERT_TO_PROFILE)
{
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *combo;
GtkWidget *toggle;
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_box_pack_start (GTK_BOX (dialog->main_vbox), vbox, FALSE, FALSE, 0);
gtk_widget_show (vbox);
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("_Rendering Intent:"));
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_widget_show (label);
combo = gimp_enum_combo_box_new (GIMP_TYPE_COLOR_RENDERING_INTENT);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
dialog->intent,
G_CALLBACK (gimp_int_combo_box_get_active),
&dialog->intent);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
toggle =
gtk_check_button_new_with_mnemonic (_("_Black Point Compensation"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), dialog->bpc);
gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_widget_show (toggle);
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_toggle_button_update),
&dialog->bpc);
}
return dialog->dialog;
}
GtkWidget *
convert_precision_dialog_new (GimpImage *image,
GimpContext *context,
GtkWidget *parent,
GimpPrecision precision,
GimpProgress *progress)
{
ConvertDialog *dialog;
GtkWidget *button;
GtkWidget *main_vbox;
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *frame;
GtkWidget *combo;
GtkSizeGroup *size_group;
const gchar *enum_desc;
gchar *blurb;
GType dither_type;
const Babl *format;
gint bits;
g_return_val_if_fail (GIMP_IS_IMAGE (image), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (GTK_IS_WIDGET (parent), NULL);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
dialog = g_slice_new0 (ConvertDialog);
/* a random format with precision */
format = gimp_babl_format (GIMP_RGB, precision, FALSE);
bits = (babl_format_get_bytes_per_pixel (format) * 8 /
babl_format_get_n_components (format));
dialog->image = image;
dialog->progress = progress;
dialog->precision = precision;
dialog->bits = bits;
/* gegl:color-reduction only does 16 bits */
if (bits <= 16)
{
dialog->layer_dither_type = saved_layer_dither_type;
dialog->text_layer_dither_type = saved_text_layer_dither_type;
dialog->mask_dither_type = saved_mask_dither_type;
}
gimp_enum_get_value (GIMP_TYPE_PRECISION, precision,
NULL, NULL, &enum_desc, NULL);
blurb = g_strdup_printf (_("Convert Image to %s"), enum_desc);
dialog->dialog =
gimp_viewable_dialog_new (GIMP_VIEWABLE (image), context,
_("Precision Conversion"),
"gimp-image-convert-precision",
GIMP_STOCK_CONVERT_PRECISION,
blurb,
parent,
gimp_standard_help_func,
GIMP_HELP_IMAGE_CONVERT_PRECISION,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
NULL);
g_free (blurb);
button = gtk_dialog_add_button (GTK_DIALOG (dialog->dialog),
_("C_onvert"), GTK_RESPONSE_OK);
gtk_button_set_image (GTK_BUTTON (button),
gtk_image_new_from_icon_name (GIMP_STOCK_CONVERT_PRECISION,
GTK_ICON_SIZE_BUTTON));
gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog->dialog),
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
gtk_window_set_resizable (GTK_WINDOW (dialog->dialog), FALSE);
g_object_weak_ref (G_OBJECT (dialog->dialog),
(GWeakNotify) convert_precision_dialog_free, dialog);
g_signal_connect (dialog->dialog, "response",
G_CALLBACK (convert_precision_dialog_response),
dialog);
main_vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
gtk_container_set_border_width (GTK_CONTAINER (main_vbox), 12);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog->dialog))),
main_vbox, TRUE, TRUE, 0);
gtk_widget_show (main_vbox);
/* dithering */
dither_type = gimp_gegl_get_op_enum_type ("gegl:color-reduction",
"dither-strategy");
frame = gimp_frame_new (_("Dithering"));
gtk_box_pack_start (GTK_BOX (main_vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 6);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
/* gegl:color-reduction only does 16 bits */
gtk_widget_set_sensitive (vbox, bits <= 16);
size_group = gtk_size_group_new (GTK_SIZE_GROUP_HORIZONTAL);
/* layers */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("_Layers:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_size_group_add_widget (size_group, label);
gtk_widget_show (label);
combo = gimp_enum_combo_box_new (dither_type);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
dialog->layer_dither_type,
G_CALLBACK (gimp_int_combo_box_get_active),
&dialog->layer_dither_type);
/* text layers */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("_Text Layers:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_size_group_add_widget (size_group, label);
gtk_widget_show (label);
combo = gimp_enum_combo_box_new (dither_type);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
dialog->text_layer_dither_type,
G_CALLBACK (gimp_int_combo_box_get_active),
&dialog->text_layer_dither_type);
gimp_help_set_help_data (combo,
_("Dithering text layers will make them uneditable"),
NULL);
/* channels */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
label = gtk_label_new_with_mnemonic (_("_Channels and Masks:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
gtk_size_group_add_widget (size_group, label);
gtk_widget_show (label);
combo = gimp_enum_combo_box_new (dither_type);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), combo);
gtk_box_pack_start (GTK_BOX (hbox), combo, TRUE, TRUE, 0);
gtk_widget_show (combo);
gimp_int_combo_box_connect (GIMP_INT_COMBO_BOX (combo),
dialog->mask_dither_type,
G_CALLBACK (gimp_int_combo_box_get_active),
&dialog->mask_dither_type);
g_object_unref (size_group);
return dialog->dialog;
}
/**
* file_open_thumbnail:
* @gimp:
* @context:
* @progress:
* @file: an image file
* @size: requested size of the thumbnail
* @mime_type: return location for image MIME type
* @image_width: return location for image width
* @image_height: return location for image height
* @format: return location for image format (set to NULL if unknown)
* @num_layers: return location for number of layers
* (set to -1 if the number of layers is not known)
* @error:
*
* Attempts to load a thumbnail by using a registered thumbnail loader.
*
* Return value: the thumbnail image
*/
GimpImage *
file_open_thumbnail (Gimp *gimp,
GimpContext *context,
GimpProgress *progress,
GFile *file,
gint size,
const gchar **mime_type,
gint *image_width,
gint *image_height,
const Babl **format,
gint *num_layers,
GError **error)
{
GimpPlugInProcedure *file_proc;
GimpProcedure *procedure;
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
g_return_val_if_fail (GIMP_IS_CONTEXT (context), NULL);
g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), NULL);
g_return_val_if_fail (G_IS_FILE (file), NULL);
g_return_val_if_fail (mime_type != NULL, NULL);
g_return_val_if_fail (image_width != NULL, NULL);
g_return_val_if_fail (image_height != NULL, NULL);
g_return_val_if_fail (format != NULL, NULL);
g_return_val_if_fail (num_layers != NULL, NULL);
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
*image_width = 0;
*image_height = 0;
*format = NULL;
*num_layers = -1;
file_proc = file_procedure_find (gimp->plug_in_manager->load_procs, file,
NULL);
if (! file_proc || ! file_proc->thumb_loader)
return NULL;
procedure = gimp_pdb_lookup_procedure (gimp->pdb, file_proc->thumb_loader);
if (procedure && procedure->num_args >= 2 && procedure->num_values >= 1)
{
GimpPDBStatusType status;
GimpValueArray *return_vals;
GimpImage *image = NULL;
gchar *path = NULL;
if (! file_proc->handles_uri)
path = g_file_get_path (file);
if (! path)
path = g_file_get_uri (file);
return_vals =
gimp_pdb_execute_procedure_by_name (gimp->pdb,
context, progress, error,
gimp_object_get_name (procedure),
G_TYPE_STRING, path,
GIMP_TYPE_INT32, size,
G_TYPE_NONE);
g_free (path);
status = g_value_get_enum (gimp_value_array_index (return_vals, 0));
if (status == GIMP_PDB_SUCCESS &&
GIMP_VALUE_HOLDS_IMAGE_ID (gimp_value_array_index (return_vals, 1)))
{
image = gimp_value_get_image (gimp_value_array_index (return_vals, 1),
gimp);
if (gimp_value_array_length (return_vals) >= 3 &&
G_VALUE_HOLDS_INT (gimp_value_array_index (return_vals, 2)) &&
G_VALUE_HOLDS_INT (gimp_value_array_index (return_vals, 3)))
{
*image_width =
MAX (0, g_value_get_int (gimp_value_array_index (return_vals, 2)));
*image_height =
MAX (0, g_value_get_int (gimp_value_array_index (return_vals, 3)));
if (gimp_value_array_length (return_vals) >= 5 &&
G_VALUE_HOLDS_INT (gimp_value_array_index (return_vals, 4)))
{
gint value = g_value_get_int (gimp_value_array_index (return_vals, 4));
switch (value)
{
case GIMP_RGB_IMAGE:
*format = gimp_babl_format (GIMP_RGB,
GIMP_PRECISION_U8_GAMMA,
FALSE);
break;
case GIMP_RGBA_IMAGE:
*format = gimp_babl_format (GIMP_RGB,
GIMP_PRECISION_U8_GAMMA,
TRUE);
break;
case GIMP_GRAY_IMAGE:
*format = gimp_babl_format (GIMP_GRAY,
GIMP_PRECISION_U8_GAMMA,
FALSE);
break;
case GIMP_GRAYA_IMAGE:
*format = gimp_babl_format (GIMP_GRAY,
GIMP_PRECISION_U8_GAMMA,
TRUE);
break;
case GIMP_INDEXED_IMAGE:
case GIMP_INDEXEDA_IMAGE:
{
const Babl *rgb;
const Babl *rgba;
babl_new_palette ("-gimp-indexed-format-dummy",
&rgb, &rgba);
if (value == GIMP_INDEXED_IMAGE)
*format = rgb;
else
*format = rgba;
}
break;
default:
break;
}
}
if (gimp_value_array_length (return_vals) >= 6 &&
G_VALUE_HOLDS_INT (gimp_value_array_index (return_vals, 5)))
{
*num_layers =
MAX (0, g_value_get_int (gimp_value_array_index (return_vals, 5)));
}
}
if (image)
{
file_open_sanitize_image (image, FALSE);
*mime_type = file_proc->mime_type;
#ifdef GIMP_UNSTABLE
g_printerr ("opened thumbnail at %d x %d\n",
gimp_image_get_width (image),
gimp_image_get_height (image));
#endif
}
}
gimp_value_array_unref (return_vals);
return image;
}
return NULL;
}
void
gimp_gegl_convolve (GeglBuffer *src_buffer,
const GeglRectangle *src_rect,
GeglBuffer *dest_buffer,
const GeglRectangle *dest_rect,
const gfloat *kernel,
gint kernel_size,
gdouble divisor,
GimpConvolutionType mode,
gboolean alpha_weighting)
{
GeglBufferIterator *iter;
GeglRectangle *src_roi;
GeglRectangle *dest_roi;
const Babl *src_format;
const Babl *dest_format;
gint src_components;
gint dest_components;
src_format = gegl_buffer_get_format (src_buffer);
if (babl_format_is_palette (src_format))
src_format = gimp_babl_format (GIMP_RGB,
GIMP_PRECISION_FLOAT_LINEAR,
babl_format_has_alpha (src_format));
else
src_format = gimp_babl_format (gimp_babl_format_get_base_type (src_format),
GIMP_PRECISION_FLOAT_LINEAR,
babl_format_has_alpha (src_format));
dest_format = gegl_buffer_get_format (dest_buffer);
if (babl_format_is_palette (dest_format))
dest_format = gimp_babl_format (GIMP_RGB,
GIMP_PRECISION_FLOAT_LINEAR,
babl_format_has_alpha (dest_format));
else
dest_format = gimp_babl_format (gimp_babl_format_get_base_type (dest_format),
GIMP_PRECISION_FLOAT_LINEAR,
babl_format_has_alpha (dest_format));
src_components = babl_format_get_n_components (src_format);
dest_components = babl_format_get_n_components (dest_format);
iter = gegl_buffer_iterator_new (src_buffer, src_rect, 0, src_format,
GEGL_BUFFER_READ, GEGL_ABYSS_NONE);
src_roi = &iter->roi[0];
gegl_buffer_iterator_add (iter, dest_buffer, dest_rect, 0, dest_format,
GEGL_BUFFER_WRITE, GEGL_ABYSS_NONE);
dest_roi = &iter->roi[1];
while (gegl_buffer_iterator_next (iter))
{
/* Convolve the src image using the convolution kernel, writing
* to dest Convolve is not tile-enabled--use accordingly
*/
const gfloat *src = iter->data[0];
gfloat *dest = iter->data[1];
const gint components = src_components;
const gint a_component = components - 1;
const gint rowstride = src_components * src_roi->width;
const gint margin = kernel_size / 2;
const gint x1 = src_roi->x;
const gint y1 = src_roi->y;
const gint x2 = src_roi->x + src_roi->width - 1;
const gint y2 = src_roi->y + src_roi->height - 1;
gint x, y;
gfloat offset;
/* If the mode is NEGATIVE_CONVOL, the offset should be 128 */
if (mode == GIMP_NEGATIVE_CONVOL)
{
offset = 0.5;
mode = GIMP_NORMAL_CONVOL;
}
else
{
offset = 0.0;
}
for (y = 0; y < dest_roi->height; y++)
{
gfloat *d = dest;
if (alpha_weighting)
{
for (x = 0; x < dest_roi->width; x++)
{
const gfloat *m = kernel;
gdouble total[4] = { 0.0, 0.0, 0.0, 0.0 };
gdouble weighted_divisor = 0.0;
gint i, j, b;
for (j = y - margin; j <= y + margin; j++)
{
for (i = x - margin; i <= x + margin; i++, m++)
{
gint xx = CLAMP (i, x1, x2);
gint yy = CLAMP (j, y1, y2);
const gfloat *s = src + yy * rowstride + xx * components;
const gfloat a = s[a_component];
if (a)
{
gdouble mult_alpha = *m * a;
weighted_divisor += mult_alpha;
for (b = 0; b < a_component; b++)
total[b] += mult_alpha * s[b];
total[a_component] += mult_alpha;
}
}
}
if (weighted_divisor == 0.0)
weighted_divisor = divisor;
for (b = 0; b < a_component; b++)
total[b] /= weighted_divisor;
total[a_component] /= divisor;
for (b = 0; b < components; b++)
{
total[b] += offset;
if (mode != GIMP_NORMAL_CONVOL && total[b] < 0.0)
total[b] = - total[b];
*d++ = CLAMP (total[b], 0.0, 1.0);
}
}
}
else
{
for (x = 0; x < dest_roi->width; x++)
{
const gfloat *m = kernel;
gdouble total[4] = { 0.0, 0.0, 0.0, 0.0 };
gint i, j, b;
for (j = y - margin; j <= y + margin; j++)
{
for (i = x - margin; i <= x + margin; i++, m++)
{
gint xx = CLAMP (i, x1, x2);
gint yy = CLAMP (j, y1, y2);
const gfloat *s = src + yy * rowstride + xx * components;
for (b = 0; b < components; b++)
total[b] += *m * s[b];
}
}
for (b = 0; b < components; b++)
{
total[b] = total[b] / divisor + offset;
if (mode != GIMP_NORMAL_CONVOL && total[b] < 0.0)
total[b] = - total[b];
total[b] = CLAMP (total[b], 0.0, 1.0);
}
}
}
dest += dest_roi->width * dest_components;
}
}
}
void
gimp_histogram_calculate (GimpHistogram *histogram,
GeglBuffer *buffer,
const GeglRectangle *buffer_rect,
GeglBuffer *mask,
const GeglRectangle *mask_rect)
{
GeglBufferIterator *iter;
const Babl *format;
gint n_components;
g_return_if_fail (histogram != NULL);
g_return_if_fail (GEGL_IS_BUFFER (buffer));
g_return_if_fail (buffer_rect != NULL);
format = gegl_buffer_get_format (buffer);
if (babl_format_is_palette (format))
format = gimp_babl_format (GIMP_RGB, GIMP_PRECISION_U8,
babl_format_has_alpha (format));
else
format = gimp_babl_format (gimp_babl_format_get_base_type (format),
GIMP_PRECISION_U8,
babl_format_has_alpha (format));
n_components = babl_format_get_n_components (format);
gimp_histogram_alloc_values (histogram, n_components);
iter = gegl_buffer_iterator_new (buffer, buffer_rect, 0, format,
GEGL_BUFFER_READ, GEGL_ABYSS_NONE);
if (mask)
gegl_buffer_iterator_add (iter, mask, mask_rect, 0,
babl_format ("Y float"),
GEGL_BUFFER_READ, GEGL_ABYSS_NONE);
#define VALUE(c,i) (histogram->values[(c) * 256 + (i)])
while (gegl_buffer_iterator_next (iter))
{
const guchar *data = iter->data[0];
gint max;
if (mask)
{
const gfloat *mask_data = iter->data[1];
switch (n_components)
{
case 1:
while (iter->length)
{
const gdouble masked = *mask_data;
VALUE (0, data[0]) += masked;
data += n_components;
mask_data += 1;
}
break;
case 2:
while (iter->length--)
{
const gdouble masked = *mask_data;
const gdouble weight = data[1] / 255.0;
VALUE (0, data[0]) += weight * masked;
VALUE (1, data[1]) += masked;
data += n_components;
mask_data += 1;
}
break;
case 3: /* calculate separate value values */
while (iter->length--)
{
const gdouble masked = *mask_data;
VALUE (1, data[0]) += masked;
VALUE (2, data[1]) += masked;
VALUE (3, data[2]) += masked;
max = MAX (data[0], data[1]);
max = MAX (data[2], max);
VALUE (0, max) += masked;
data += n_components;
mask_data += 1;
}
break;
case 4: /* calculate separate value values */
while (iter->length--)
{
const gdouble masked = *mask_data;
const gdouble weight = data[3] / 255.0;
VALUE (1, data[0]) += weight * masked;
VALUE (2, data[1]) += weight * masked;
VALUE (3, data[2]) += weight * masked;
VALUE (4, data[3]) += masked;
max = MAX (data[0], data[1]);
max = MAX (data[2], max);
VALUE (0, max) += weight * masked;
data += n_components;
mask_data += 1;
}
break;
}
}
else /* no mask */
{
switch (n_components)
{
case 1:
while (iter->length--)
{
VALUE (0, data[0]) += 1.0;
data += n_components;
}
break;
case 2:
while (iter->length--)
{
const gdouble weight = data[1] / 255;
VALUE (0, data[0]) += weight;
VALUE (1, data[1]) += 1.0;
data += n_components;
}
break;
case 3: /* calculate separate value values */
while (iter->length--)
{
VALUE (1, data[0]) += 1.0;
VALUE (2, data[1]) += 1.0;
VALUE (3, data[2]) += 1.0;
max = MAX (data[0], data[1]);
max = MAX (data[2], max);
VALUE (0, max) += 1.0;
data += n_components;
}
break;
case 4: /* calculate separate value values */
while (iter->length--)
{
const gdouble weight = data[3] / 255;
VALUE (1, data[0]) += weight;
VALUE (2, data[1]) += weight;
VALUE (3, data[2]) += weight;
VALUE (4, data[3]) += 1.0;
max = MAX (data[0], data[1]);
max = MAX (data[2], max);
VALUE (0, max) += weight;
data += n_components;
}
break;
}
}
}
#undef VALUE
}
