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gimp/modules/display-filter-clip-warning.c

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/* GIMP - The GNU Image Manipulation Program
*
* Copyright (C) 2017 Ell
*
* 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 <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpcolor/gimpcolor.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpmodule/gimpmodule.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "libgimp/libgimp-intl.h"
#define DEFAULT_SHADOWS_COLOR ((gdouble[]) {0.25, 0.25, 1.00, 1.00})
#define DEFAULT_HIGHLIGHTS_COLOR ((gdouble[]) {1.00, 0.25, 0.25, 1.00})
#define DEFAULT_BOGUS_COLOR ((gdouble[]) {1.00, 1.00, 0.25, 1.00})
#define CDISPLAY_TYPE_CLIP_WARNING (cdisplay_clip_warning_get_type ())
#define CDISPLAY_CLIP_WARNING(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CDISPLAY_TYPE_CLIP_WARNING, CdisplayClipWarning))
#define CDISPLAY_CLIP_WARNING_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CDISPLAY_TYPE_CLIP_WARNING, CdisplayClipWarningClass))
#define CDISPLAY_IS_CLIP_WARNING(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CDISPLAY_TYPE_CLIP_WARNING))
#define CDISPLAY_IS_CLIP_WARNING_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CDISPLAY_TYPE_CLIP_WARNING))
typedef enum
{
WARNING_SHADOW = 1 << 0,
WARNING_HIGHLIGHT = 1 << 1,
WARNING_BOGUS = 1 << 2
} Warning;
typedef struct _CdisplayClipWarning CdisplayClipWarning;
typedef struct _CdisplayClipWarningClass CdisplayClipWarningClass;
struct _CdisplayClipWarning
{
GimpColorDisplay parent_instance;
gboolean show_shadows;
GeglColor *shadows_color;
gboolean show_highlights;
GeglColor *highlights_color;
gboolean show_bogus;
GeglColor *bogus_color;
gboolean include_alpha;
gboolean include_transparent;
gfloat colors[8][2][4];
};
struct _CdisplayClipWarningClass
{
GimpColorDisplayClass parent_instance;
};
enum
{
PROP_0,
PROP_SHOW_SHADOWS,
PROP_SHADOWS_COLOR,
PROP_SHOW_HIGHLIGHTS,
PROP_HIGHLIGHTS_COLOR,
PROP_SHOW_BOGUS,
PROP_BOGUS_COLOR,
PROP_INCLUDE_ALPHA,
PROP_INCLUDE_TRANSPARENT
};
GType cdisplay_clip_warning_get_type (void);
static void cdisplay_clip_warning_finalize (GObject *object);
static void cdisplay_clip_warning_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void cdisplay_clip_warning_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void cdisplay_clip_warning_convert_buffer (GimpColorDisplay *display,
GeglBuffer *buffer,
GeglRectangle *area);
static void cdisplay_clip_warning_set_member (CdisplayClipWarning *clip_warning,
const gchar *property_name,
gpointer member,
gconstpointer value,
gsize size);
static void cdisplay_clip_warning_update_colors (CdisplayClipWarning *clip_warning);
static const GimpModuleInfo cdisplay_clip_warning_info =
{
GIMP_MODULE_ABI_VERSION,
/* Translators: "Clip Warning" is the name of a (color) display filter
* that highlights pixels outside of the color space range.
* Shown as a label description. */
N_("Clip warning color display filter"),
"Ell",
"v1.0",
"(c) 2017, released under the GPL",
"2017"
};
G_DEFINE_DYNAMIC_TYPE (CdisplayClipWarning, cdisplay_clip_warning,
GIMP_TYPE_COLOR_DISPLAY)
G_MODULE_EXPORT const GimpModuleInfo *
gimp_module_query (GTypeModule *module)
{
return &cdisplay_clip_warning_info;
}
G_MODULE_EXPORT gboolean
gimp_module_register (GTypeModule *module)
{
cdisplay_clip_warning_register_type (module);
return TRUE;
}
static void
cdisplay_clip_warning_class_init (CdisplayClipWarningClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpColorDisplayClass *display_class = GIMP_COLOR_DISPLAY_CLASS (klass);
GeglColor *color = gegl_color_new (NULL);
object_class->finalize = cdisplay_clip_warning_finalize;
object_class->get_property = cdisplay_clip_warning_get_property;
object_class->set_property = cdisplay_clip_warning_set_property;
gegl_color_set_pixel (color, babl_format ("R'G'B'A double"),
DEFAULT_SHADOWS_COLOR);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_SHOW_SHADOWS,
"show-shadows",
_("Show shadows"),
_("Show warning for pixels with a negative component"),
TRUE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_COLOR (object_class, PROP_SHADOWS_COLOR,
"shadows-color",
_("Shadows color"),
_("Shadows warning color"),
FALSE, color,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
gegl_param_spec_set_property_key (
g_object_class_find_property (G_OBJECT_CLASS (klass), "shadows-color"),
"sensitive", "show-shadows");
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_SHOW_HIGHLIGHTS,
"show-highlights",
_("Show highlights"),
_("Show warning for pixels with a component greater than one"),
TRUE,
GIMP_PARAM_STATIC_STRINGS);
gegl_color_set_pixel (color, babl_format ("R'G'B'A double"),
DEFAULT_HIGHLIGHTS_COLOR);
GIMP_CONFIG_PROP_COLOR (object_class, PROP_HIGHLIGHTS_COLOR,
"highlights-color",
_("Highlights color"),
_("Highlights warning color"),
FALSE, color,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
gegl_param_spec_set_property_key (
g_object_class_find_property (G_OBJECT_CLASS (klass), "highlights-color"),
"sensitive", "show-highlights");
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_SHOW_BOGUS,
"show-bogus",
_("Show bogus"),
_("Show warning for pixels with an infinite or NaN component"),
TRUE,
GIMP_PARAM_STATIC_STRINGS);
gegl_color_set_pixel (color, babl_format ("R'G'B'A double"),
DEFAULT_BOGUS_COLOR);
GIMP_CONFIG_PROP_COLOR (object_class, PROP_BOGUS_COLOR,
"bogus-color",
_("Bogus color"),
_("Bogus warning color"),
FALSE, color,
GIMP_PARAM_STATIC_STRINGS |
GIMP_CONFIG_PARAM_DEFAULTS);
gegl_param_spec_set_property_key (
g_object_class_find_property (G_OBJECT_CLASS (klass), "bogus-color"),
"sensitive", "show-bogus");
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_INCLUDE_ALPHA,
"include-alpha",
_("Include alpha component"),
_("Include alpha component in the warning"),
TRUE,
GIMP_PARAM_STATIC_STRINGS);
GIMP_CONFIG_PROP_BOOLEAN (object_class, PROP_INCLUDE_TRANSPARENT,
"include-transparent",
_("Include transparent pixels"),
_("Include fully transparent pixels in the warning"),
TRUE,
GIMP_PARAM_STATIC_STRINGS);
display_class->name = _("Clip Warning");
display_class->help_id = "gimp-colordisplay-clip-warning";
display_class->icon_name = GIMP_ICON_DISPLAY_FILTER_CLIP_WARNING;
display_class->convert_buffer = cdisplay_clip_warning_convert_buffer;
g_object_unref (color);
}
static void
cdisplay_clip_warning_class_finalize (CdisplayClipWarningClass *klass)
{
}
static void
cdisplay_clip_warning_init (CdisplayClipWarning *clip_warning)
{
GeglColor *color;
color = gegl_color_new (NULL);
gegl_color_set_pixel (color, babl_format ("R'G'B'A double"),
DEFAULT_SHADOWS_COLOR);
clip_warning->shadows_color = color;
color = gegl_color_new (NULL);
gegl_color_set_pixel (color, babl_format ("R'G'B'A double"),
DEFAULT_HIGHLIGHTS_COLOR);
clip_warning->highlights_color = color;
color = gegl_color_new (NULL);
gegl_color_set_pixel (color, babl_format ("R'G'B'A double"),
DEFAULT_BOGUS_COLOR);
clip_warning->bogus_color = color;
}
static void
cdisplay_clip_warning_finalize (GObject *object)
{
CdisplayClipWarning *clip_warning = CDISPLAY_CLIP_WARNING (object);
g_clear_object (&clip_warning->shadows_color);
g_clear_object (&clip_warning->highlights_color);
g_clear_object (&clip_warning->bogus_color);
}
static void
cdisplay_clip_warning_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
CdisplayClipWarning *clip_warning = CDISPLAY_CLIP_WARNING (object);
switch (property_id)
{
case PROP_SHOW_SHADOWS:
g_value_set_boolean (value, clip_warning->show_shadows);
break;
case PROP_SHADOWS_COLOR:
g_value_set_object (value, clip_warning->shadows_color);
break;
case PROP_SHOW_HIGHLIGHTS:
g_value_set_boolean (value, clip_warning->show_highlights);
break;
case PROP_HIGHLIGHTS_COLOR:
g_value_set_object (value, clip_warning->highlights_color);
break;
case PROP_SHOW_BOGUS:
g_value_set_boolean (value, clip_warning->show_bogus);
break;
case PROP_BOGUS_COLOR:
g_value_set_object (value, clip_warning->bogus_color);
break;
case PROP_INCLUDE_ALPHA:
g_value_set_boolean (value, clip_warning->include_alpha);
break;
case PROP_INCLUDE_TRANSPARENT:
g_value_set_boolean (value, clip_warning->include_transparent);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
cdisplay_clip_warning_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
CdisplayClipWarning *clip_warning = CDISPLAY_CLIP_WARNING (object);
#define SET_MEMBER_PTR(member, value) \
cdisplay_clip_warning_set_member (clip_warning, \
pspec->name, \
&clip_warning->member, \
(value), \
sizeof (clip_warning->member))
#define SET_MEMBER_VAL(member, type, value) \
SET_MEMBER_PTR (member, &(type) {value})
switch (property_id)
{
case PROP_SHOW_SHADOWS:
SET_MEMBER_VAL (show_shadows, gboolean, g_value_get_boolean (value));
break;
case PROP_SHADOWS_COLOR:
g_clear_object (&clip_warning->shadows_color);
clip_warning->shadows_color = gegl_color_duplicate (g_value_get_object (value));
break;
case PROP_SHOW_HIGHLIGHTS:
SET_MEMBER_VAL (show_highlights, gboolean, g_value_get_boolean (value));
break;
case PROP_HIGHLIGHTS_COLOR:
g_clear_object (&clip_warning->highlights_color);
clip_warning->highlights_color = gegl_color_duplicate (g_value_get_object (value));
break;
case PROP_SHOW_BOGUS:
SET_MEMBER_VAL (show_bogus, gboolean, g_value_get_boolean (value));
break;
case PROP_BOGUS_COLOR:
g_clear_object (&clip_warning->bogus_color);
clip_warning->bogus_color = gegl_color_duplicate (g_value_get_object (value));
break;
case PROP_INCLUDE_ALPHA:
SET_MEMBER_VAL (include_alpha, gboolean, g_value_get_boolean (value));
break;
case PROP_INCLUDE_TRANSPARENT:
SET_MEMBER_VAL (include_transparent, gboolean, g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
if (property_id == PROP_SHADOWS_COLOR ||
property_id == PROP_HIGHLIGHTS_COLOR ||
property_id == PROP_BOGUS_COLOR)
{
cdisplay_clip_warning_update_colors (clip_warning);
g_object_notify (G_OBJECT (clip_warning), pspec->name);
gimp_color_display_changed (GIMP_COLOR_DISPLAY (clip_warning));
}
#undef SET_MEMBER_PTR
#undef SET_MEMBER_VAL
}
static void
cdisplay_clip_warning_convert_buffer (GimpColorDisplay *display,
GeglBuffer *buffer,
GeglRectangle *area)
{
CdisplayClipWarning *clip_warning = CDISPLAY_CLIP_WARNING (display);
GeglBufferIterator *iter;
iter = gegl_buffer_iterator_new (buffer, area, 0,
babl_format ("R'G'B'A float"),
GEGL_ACCESS_READWRITE, GEGL_ABYSS_NONE, 1);
while (gegl_buffer_iterator_next (iter))
{
gfloat *data = iter->items[0].data;
gint count = iter->length;
gint x = iter->items[0].roi.x;
gint y = iter->items[0].roi.y;
while (count--)
{
gint warning = 0;
if (clip_warning->include_transparent ||
! (data[3] <= 0.0f) /* include nan */)
{
if (clip_warning->show_bogus &&
(! isfinite (data[0]) || ! isfinite (data[1]) || ! isfinite (data[2]) ||
(clip_warning->include_alpha && ! isfinite (data[3]))))
{
/* don't combine warning color of pixels with a bogus
* component with other warnings
*/
warning = WARNING_BOGUS;
}
else
{
if (clip_warning->show_shadows &&
(data[0] < 0.0f || data[1] < 0.0f || data[2] < 0.0f ||
(clip_warning->include_alpha && data[3] < 0.0f)))
{
warning |= WARNING_SHADOW;
}
if (clip_warning->show_highlights &&
(data[0] > 1.0f || data[1] > 1.0f || data[2] > 1.0f ||
(clip_warning->include_alpha && data[3] > 1.0f)))
{
warning |= WARNING_HIGHLIGHT;
}
}
}
if (warning)
{
gboolean alt = ((x + y) >> 3) & 1;
memcpy (data, clip_warning->colors[warning][alt],
4 * sizeof (gfloat));
}
data += 4;
if (++x == iter->items[0].roi.x + iter->items[0].roi.width)
{
x = iter->items[0].roi.x;
y++;
}
}
}
}
static void
cdisplay_clip_warning_set_member (CdisplayClipWarning *clip_warning,
const gchar *property_name,
gpointer member,
gconstpointer value,
gsize size)
{
if (memcmp (member, value, size))
{
memcpy (member, value, size);
cdisplay_clip_warning_update_colors (clip_warning);
g_object_notify (G_OBJECT (clip_warning), property_name);
gimp_color_display_changed (GIMP_COLOR_DISPLAY (clip_warning));
}
}
static void
cdisplay_clip_warning_update_colors (CdisplayClipWarning *clip_warning)
{
gint i;
gint j;
for (i = 0; i < 8; i++)
{
gfloat *color = clip_warning->colors[i][0];
gfloat *alt_color = clip_warning->colors[i][1];
gfloat alt_value;
gint n = 0;
gfloat rgb[3];
memset (color, 0, 3 * sizeof (gfloat));
if (i & WARNING_SHADOW)
{
gegl_color_get_pixel (clip_warning->shadows_color,
babl_format ("R'G'B' float"),
rgb);
color[0] += rgb[0];
color[1] += rgb[1];
color[2] += rgb[2];
n++;
}
if (i & WARNING_HIGHLIGHT)
{
gegl_color_get_pixel (clip_warning->highlights_color,
babl_format ("R'G'B' float"),
rgb);
color[0] += rgb[0];
color[1] += rgb[1];
color[2] += rgb[2];
n++;
}
if (i & WARNING_BOGUS)
{
gegl_color_get_pixel (clip_warning->bogus_color,
babl_format ("R'G'B' float"),
rgb);
color[0] += rgb[0];
color[1] += rgb[1];
color[2] += rgb[2];
n++;
}
if (n)
{
for (j = 0; j < 3; j++)
color[j] /= n;
}
color[3] = 1.0;
if (MAX (color[0], MAX (color[1], color[2])) <= 0.5)
alt_value = 1.0;
else
alt_value = 0.0;
for (j = 0; j < 3; j++)
alt_color[j] = 0.75 * color[j] + 0.25 * alt_value;
alt_color[3] = 1.0;
}
}
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