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e9a6d93197d49675713f9e5936df37378f4f864c
gimp/app/core/gimp-layer-modes.c
Øyvind Kolås e9a6d93197 app: add darken only, lighten only that uses luminance 
These variations on darken only and lighten only have the advantage over the
componentvise versions that they always use the full triplet of either original
or new layer - meaning no new colors/hues will be introduced. This is similar
to how these modes operated/operates in picture publisher and photo-paint.
2017-01-29 22:27:28 +01:00

747 lines
20 KiB
C
Raw Blame History

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimp-layer-modes.c
* Copyright (C) 2017 Michael Natterer <mitch@gimp.org>
* Øyvind Kolås <pippin@gimp.org>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <glib-object.h>
#include "core-types.h"
#include "gimp-layer-modes.h"
gboolean
gimp_layer_mode_is_legacy (GimpLayerMode mode)
{
switch (mode)
{
case GIMP_LAYER_MODE_MULTIPLY_LEGACY:
case GIMP_LAYER_MODE_SCREEN_LEGACY:
case GIMP_LAYER_MODE_OVERLAY_LEGACY:
case GIMP_LAYER_MODE_DIFFERENCE_LEGACY:
case GIMP_LAYER_MODE_ADDITION_LEGACY:
case GIMP_LAYER_MODE_SUBTRACT_LEGACY:
case GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_HSV_HUE_LEGACY:
case GIMP_LAYER_MODE_HSV_SATURATION_LEGACY:
case GIMP_LAYER_MODE_HSV_COLOR_LEGACY:
case GIMP_LAYER_MODE_HSV_VALUE_LEGACY:
case GIMP_LAYER_MODE_DIVIDE_LEGACY:
case GIMP_LAYER_MODE_DODGE_LEGACY:
case GIMP_LAYER_MODE_BURN_LEGACY:
case GIMP_LAYER_MODE_HARDLIGHT_LEGACY:
case GIMP_LAYER_MODE_SOFTLIGHT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY:
return TRUE;
default:
break;
}
return FALSE;
}
gboolean
gimp_layer_mode_is_linear (GimpLayerMode mode)
{
switch (mode)
{
case GIMP_LAYER_MODE_NORMAL:
return FALSE;
case GIMP_LAYER_MODE_DISSOLVE:
return TRUE;
case GIMP_LAYER_MODE_BEHIND:
return FALSE;
case GIMP_LAYER_MODE_MULTIPLY_LEGACY:
case GIMP_LAYER_MODE_SCREEN_LEGACY:
case GIMP_LAYER_MODE_OVERLAY_LEGACY:
case GIMP_LAYER_MODE_DIFFERENCE_LEGACY:
case GIMP_LAYER_MODE_ADDITION_LEGACY:
case GIMP_LAYER_MODE_SUBTRACT_LEGACY:
case GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_HSV_HUE_LEGACY:
case GIMP_LAYER_MODE_HSV_SATURATION_LEGACY:
case GIMP_LAYER_MODE_HSV_COLOR_LEGACY:
case GIMP_LAYER_MODE_HSV_VALUE_LEGACY:
case GIMP_LAYER_MODE_DIVIDE_LEGACY:
case GIMP_LAYER_MODE_DODGE_LEGACY:
case GIMP_LAYER_MODE_BURN_LEGACY:
case GIMP_LAYER_MODE_HARDLIGHT_LEGACY:
case GIMP_LAYER_MODE_SOFTLIGHT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY:
return FALSE;
case GIMP_LAYER_MODE_COLOR_ERASE:
return FALSE;
case GIMP_LAYER_MODE_OVERLAY:
return TRUE;
case GIMP_LAYER_MODE_LCH_HUE:
case GIMP_LAYER_MODE_LCH_CHROMA:
case GIMP_LAYER_MODE_LCH_COLOR:
case GIMP_LAYER_MODE_LCH_LIGHTNESS:
return TRUE;
case GIMP_LAYER_MODE_NORMAL_LINEAR:
return TRUE;
case GIMP_LAYER_MODE_MULTIPLY:
case GIMP_LAYER_MODE_SCREEN:
case GIMP_LAYER_MODE_DIFFERENCE:
case GIMP_LAYER_MODE_ADDITION:
case GIMP_LAYER_MODE_SUBTRACT:
case GIMP_LAYER_MODE_DARKEN_ONLY:
case GIMP_LAYER_MODE_LIGHTEN_ONLY:
case GIMP_LAYER_MODE_LUMINANCE_DARKEN_ONLY:
case GIMP_LAYER_MODE_LUMINANCE_LIGHTEN_ONLY:
case GIMP_LAYER_MODE_HSV_HUE:
case GIMP_LAYER_MODE_HSV_SATURATION:
case GIMP_LAYER_MODE_HSV_COLOR:
case GIMP_LAYER_MODE_HSV_VALUE:
case GIMP_LAYER_MODE_DIVIDE:
case GIMP_LAYER_MODE_DODGE:
case GIMP_LAYER_MODE_BURN:
case GIMP_LAYER_MODE_HARDLIGHT:
case GIMP_LAYER_MODE_SOFTLIGHT:
case GIMP_LAYER_MODE_GRAIN_EXTRACT:
case GIMP_LAYER_MODE_GRAIN_MERGE:
case GIMP_LAYER_MODE_VIVID_LIGHT:
case GIMP_LAYER_MODE_PIN_LIGHT:
case GIMP_LAYER_MODE_LINEAR_LIGHT:
case GIMP_LAYER_MODE_EXCLUSION:
case GIMP_LAYER_MODE_LINEAR_BURN:
return TRUE;
case GIMP_LAYER_MODE_BEHIND_LINEAR:
case GIMP_LAYER_MODE_MULTIPLY_LINEAR:
case GIMP_LAYER_MODE_SCREEN_LINEAR:
case GIMP_LAYER_MODE_OVERLAY_LINEAR:
case GIMP_LAYER_MODE_DIFFERENCE_LINEAR:
case GIMP_LAYER_MODE_ADDITION_LINEAR:
case GIMP_LAYER_MODE_SUBTRACT_LINEAR:
case GIMP_LAYER_MODE_DIVIDE_LINEAR:
case GIMP_LAYER_MODE_DODGE_LINEAR:
case GIMP_LAYER_MODE_BURN_LINEAR:
case GIMP_LAYER_MODE_HARDLIGHT_LINEAR:
case GIMP_LAYER_MODE_SOFTLIGHT_LINEAR:
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LINEAR:
case GIMP_LAYER_MODE_GRAIN_MERGE_LINEAR:
case GIMP_LAYER_MODE_VIVID_LIGHT_LINEAR:
case GIMP_LAYER_MODE_PIN_LIGHT_LINEAR:
case GIMP_LAYER_MODE_LINEAR_LIGHT_LINEAR:
case GIMP_LAYER_MODE_EXCLUSION_LINEAR:
case GIMP_LAYER_MODE_LINEAR_BURN_LINEAR:
return TRUE;
case GIMP_LAYER_MODE_ERASE:
case GIMP_LAYER_MODE_REPLACE:
case GIMP_LAYER_MODE_ANTI_ERASE:
return TRUE;
}
return TRUE;
}
GimpLayerColorSpace
gimp_layer_mode_get_blend_space (GimpLayerMode mode)
{
switch (mode)
{
case GIMP_LAYER_MODE_NORMAL:
return GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL;
case GIMP_LAYER_MODE_DISSOLVE:
return GIMP_LAYER_COLOR_SPACE_RGB_LINEAR;
case GIMP_LAYER_MODE_BEHIND:
return GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL;
case GIMP_LAYER_MODE_MULTIPLY_LEGACY:
case GIMP_LAYER_MODE_SCREEN_LEGACY:
case GIMP_LAYER_MODE_OVERLAY_LEGACY:
case GIMP_LAYER_MODE_DIFFERENCE_LEGACY:
case GIMP_LAYER_MODE_ADDITION_LEGACY:
case GIMP_LAYER_MODE_SUBTRACT_LEGACY:
case GIMP_LAYER_MODE_HSV_HUE_LEGACY:
case GIMP_LAYER_MODE_HSV_SATURATION_LEGACY:
case GIMP_LAYER_MODE_HSV_COLOR_LEGACY:
case GIMP_LAYER_MODE_HSV_VALUE_LEGACY:
case GIMP_LAYER_MODE_DIVIDE_LEGACY:
case GIMP_LAYER_MODE_DODGE_LEGACY:
case GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_BURN_LEGACY:
case GIMP_LAYER_MODE_HARDLIGHT_LEGACY:
case GIMP_LAYER_MODE_SOFTLIGHT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY:
return GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL;
case GIMP_LAYER_MODE_COLOR_ERASE:
case GIMP_LAYER_MODE_OVERLAY:
return GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL;
case GIMP_LAYER_MODE_LCH_HUE:
case GIMP_LAYER_MODE_LCH_CHROMA:
case GIMP_LAYER_MODE_LCH_COLOR:
case GIMP_LAYER_MODE_LCH_LIGHTNESS:
return GIMP_LAYER_COLOR_SPACE_LAB;
case GIMP_LAYER_MODE_NORMAL_LINEAR:
return GIMP_LAYER_COLOR_SPACE_RGB_LINEAR;
case GIMP_LAYER_MODE_MULTIPLY:
case GIMP_LAYER_MODE_SCREEN:
case GIMP_LAYER_MODE_DIFFERENCE:
case GIMP_LAYER_MODE_ADDITION:
case GIMP_LAYER_MODE_SUBTRACT:
case GIMP_LAYER_MODE_HSV_HUE:
case GIMP_LAYER_MODE_HSV_SATURATION:
case GIMP_LAYER_MODE_HSV_COLOR:
case GIMP_LAYER_MODE_HSV_VALUE:
case GIMP_LAYER_MODE_DIVIDE:
case GIMP_LAYER_MODE_DODGE:
case GIMP_LAYER_MODE_BURN:
case GIMP_LAYER_MODE_HARDLIGHT:
case GIMP_LAYER_MODE_SOFTLIGHT:
case GIMP_LAYER_MODE_GRAIN_EXTRACT:
case GIMP_LAYER_MODE_GRAIN_MERGE:
case GIMP_LAYER_MODE_VIVID_LIGHT:
case GIMP_LAYER_MODE_PIN_LIGHT:
case GIMP_LAYER_MODE_LINEAR_LIGHT:
case GIMP_LAYER_MODE_EXCLUSION:
case GIMP_LAYER_MODE_LINEAR_BURN:
return GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL;
case GIMP_LAYER_MODE_BEHIND_LINEAR:
case GIMP_LAYER_MODE_MULTIPLY_LINEAR:
case GIMP_LAYER_MODE_SCREEN_LINEAR:
case GIMP_LAYER_MODE_OVERLAY_LINEAR:
case GIMP_LAYER_MODE_DIFFERENCE_LINEAR:
case GIMP_LAYER_MODE_ADDITION_LINEAR:
case GIMP_LAYER_MODE_SUBTRACT_LINEAR:
case GIMP_LAYER_MODE_DARKEN_ONLY:
case GIMP_LAYER_MODE_LIGHTEN_ONLY:
case GIMP_LAYER_MODE_LUMINANCE_DARKEN_ONLY:
case GIMP_LAYER_MODE_LUMINANCE_LIGHTEN_ONLY:
case GIMP_LAYER_MODE_DIVIDE_LINEAR:
case GIMP_LAYER_MODE_DODGE_LINEAR:
case GIMP_LAYER_MODE_BURN_LINEAR:
case GIMP_LAYER_MODE_HARDLIGHT_LINEAR:
case GIMP_LAYER_MODE_SOFTLIGHT_LINEAR:
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LINEAR:
case GIMP_LAYER_MODE_GRAIN_MERGE_LINEAR:
case GIMP_LAYER_MODE_VIVID_LIGHT_LINEAR:
case GIMP_LAYER_MODE_PIN_LIGHT_LINEAR:
case GIMP_LAYER_MODE_LINEAR_LIGHT_LINEAR:
case GIMP_LAYER_MODE_EXCLUSION_LINEAR:
case GIMP_LAYER_MODE_LINEAR_BURN_LINEAR:
return GIMP_LAYER_COLOR_SPACE_RGB_LINEAR;
case GIMP_LAYER_MODE_ERASE:
case GIMP_LAYER_MODE_REPLACE:
case GIMP_LAYER_MODE_ANTI_ERASE:
return GIMP_LAYER_COLOR_SPACE_RGB_LINEAR;
}
return GIMP_LAYER_COLOR_SPACE_RGB_LINEAR;
}
GimpLayerColorSpace
gimp_layer_mode_get_composite_space (GimpLayerMode mode)
{
return GIMP_LAYER_COLOR_SPACE_RGB_LINEAR;
}
GimpLayerCompositeMode
gimp_layer_mode_get_composite_mode (GimpLayerMode mode)
{
switch (mode)
{
case GIMP_LAYER_MODE_NORMAL:
case GIMP_LAYER_MODE_NORMAL_LINEAR:
case GIMP_LAYER_MODE_DISSOLVE:
case GIMP_LAYER_MODE_BEHIND:
case GIMP_LAYER_MODE_BEHIND_LINEAR:
return GIMP_LAYER_COMPOSITE_SRC_OVER;
case GIMP_LAYER_MODE_MULTIPLY_LEGACY:
case GIMP_LAYER_MODE_SCREEN_LEGACY:
case GIMP_LAYER_MODE_OVERLAY_LEGACY:
case GIMP_LAYER_MODE_DIFFERENCE_LEGACY:
case GIMP_LAYER_MODE_ADDITION_LEGACY:
case GIMP_LAYER_MODE_SUBTRACT_LEGACY:
case GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY:
case GIMP_LAYER_MODE_HSV_HUE_LEGACY:
case GIMP_LAYER_MODE_HSV_SATURATION_LEGACY:
case GIMP_LAYER_MODE_HSV_COLOR_LEGACY:
case GIMP_LAYER_MODE_HSV_VALUE_LEGACY:
case GIMP_LAYER_MODE_DIVIDE_LEGACY:
case GIMP_LAYER_MODE_DODGE_LEGACY:
case GIMP_LAYER_MODE_BURN_LEGACY:
case GIMP_LAYER_MODE_HARDLIGHT_LEGACY:
case GIMP_LAYER_MODE_SOFTLIGHT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY:
case GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY:
case GIMP_LAYER_MODE_COLOR_ERASE:
case GIMP_LAYER_MODE_OVERLAY:
case GIMP_LAYER_MODE_LCH_HUE:
case GIMP_LAYER_MODE_LCH_CHROMA:
case GIMP_LAYER_MODE_LCH_COLOR:
case GIMP_LAYER_MODE_LCH_LIGHTNESS:
case GIMP_LAYER_MODE_MULTIPLY:
case GIMP_LAYER_MODE_MULTIPLY_LINEAR:
case GIMP_LAYER_MODE_SCREEN:
case GIMP_LAYER_MODE_SCREEN_LINEAR:
case GIMP_LAYER_MODE_OVERLAY_LINEAR:
case GIMP_LAYER_MODE_DIFFERENCE:
case GIMP_LAYER_MODE_DIFFERENCE_LINEAR:
case GIMP_LAYER_MODE_ADDITION:
case GIMP_LAYER_MODE_ADDITION_LINEAR:
case GIMP_LAYER_MODE_SUBTRACT:
case GIMP_LAYER_MODE_SUBTRACT_LINEAR:
case GIMP_LAYER_MODE_DARKEN_ONLY:
case GIMP_LAYER_MODE_LIGHTEN_ONLY:
case GIMP_LAYER_MODE_LUMINANCE_DARKEN_ONLY:
case GIMP_LAYER_MODE_LUMINANCE_LIGHTEN_ONLY:
case GIMP_LAYER_MODE_HSV_HUE:
case GIMP_LAYER_MODE_HSV_SATURATION:
case GIMP_LAYER_MODE_HSV_COLOR:
case GIMP_LAYER_MODE_HSV_VALUE:
case GIMP_LAYER_MODE_DIVIDE:
case GIMP_LAYER_MODE_DIVIDE_LINEAR:
case GIMP_LAYER_MODE_DODGE:
case GIMP_LAYER_MODE_DODGE_LINEAR:
case GIMP_LAYER_MODE_BURN:
case GIMP_LAYER_MODE_BURN_LINEAR:
case GIMP_LAYER_MODE_HARDLIGHT:
case GIMP_LAYER_MODE_HARDLIGHT_LINEAR:
case GIMP_LAYER_MODE_SOFTLIGHT:
case GIMP_LAYER_MODE_SOFTLIGHT_LINEAR:
case GIMP_LAYER_MODE_GRAIN_EXTRACT:
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LINEAR:
case GIMP_LAYER_MODE_GRAIN_MERGE:
case GIMP_LAYER_MODE_GRAIN_MERGE_LINEAR:
case GIMP_LAYER_MODE_VIVID_LIGHT:
case GIMP_LAYER_MODE_VIVID_LIGHT_LINEAR:
case GIMP_LAYER_MODE_PIN_LIGHT:
case GIMP_LAYER_MODE_PIN_LIGHT_LINEAR:
case GIMP_LAYER_MODE_LINEAR_LIGHT:
case GIMP_LAYER_MODE_LINEAR_LIGHT_LINEAR:
case GIMP_LAYER_MODE_EXCLUSION:
case GIMP_LAYER_MODE_EXCLUSION_LINEAR:
case GIMP_LAYER_MODE_LINEAR_BURN:
case GIMP_LAYER_MODE_LINEAR_BURN_LINEAR:
return GIMP_LAYER_COMPOSITE_SRC_ATOP;
case GIMP_LAYER_MODE_ERASE:
case GIMP_LAYER_MODE_REPLACE:
case GIMP_LAYER_MODE_ANTI_ERASE:
return GIMP_LAYER_COMPOSITE_SRC_OVER;
}
return GIMP_LAYER_COMPOSITE_SRC_OVER;
}
const gchar *
gimp_layer_mode_get_operation (GimpLayerMode mode)
{
switch (mode)
{
case GIMP_LAYER_MODE_NORMAL:
case GIMP_LAYER_MODE_NORMAL_LINEAR:
return "gimp:normal";
case GIMP_LAYER_MODE_DISSOLVE:
return "gimp:dissolve";
case GIMP_LAYER_MODE_BEHIND:
case GIMP_LAYER_MODE_BEHIND_LINEAR:
return "gimp:behind";
case GIMP_LAYER_MODE_MULTIPLY_LEGACY:
return "gimp:multiply-legacy";
case GIMP_LAYER_MODE_SCREEN_LEGACY:
return "gimp:screen-legacy";
case GIMP_LAYER_MODE_OVERLAY_LEGACY:
return "gimp:softlight-legacy";
case GIMP_LAYER_MODE_DIFFERENCE_LEGACY:
return "gimp:difference-legacy";
case GIMP_LAYER_MODE_ADDITION_LEGACY:
return "gimp:addition-legacy";
case GIMP_LAYER_MODE_SUBTRACT_LEGACY:
return "gimp:subtract-legacy";
case GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY:
return "gimp:darken-only-legacy";
case GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY:
return "gimp:lighten-only-legacy";
case GIMP_LAYER_MODE_HSV_HUE_LEGACY:
return "gimp:hsv-hue-legacy";
case GIMP_LAYER_MODE_HSV_SATURATION_LEGACY:
return "gimp:hsv-saturation-legacy";
case GIMP_LAYER_MODE_HSV_COLOR_LEGACY:
return "gimp:hsv-color-legacy";
case GIMP_LAYER_MODE_HSV_VALUE_LEGACY:
return "gimp:hsv-value-legacy";
case GIMP_LAYER_MODE_DIVIDE_LEGACY:
return "gimp:divide-legacy";
case GIMP_LAYER_MODE_DODGE_LEGACY:
return "gimp:dodge-legacy";
case GIMP_LAYER_MODE_BURN_LEGACY:
return "gimp:burn-legacy";
case GIMP_LAYER_MODE_HARDLIGHT_LEGACY:
return "gimp:hardlight-legacy";
case GIMP_LAYER_MODE_SOFTLIGHT_LEGACY:
return "gimp:softlight-legacy";
case GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY:
return "gimp:grain-extract-legacy";
case GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY:
return "gimp:grain-merge-legacy";
case GIMP_LAYER_MODE_COLOR_ERASE:
return "gimp:color-erase";
case GIMP_LAYER_MODE_ERASE:
return "gimp:erase";
case GIMP_LAYER_MODE_REPLACE:
return "gimp:replace";
case GIMP_LAYER_MODE_ANTI_ERASE:
return "gimp:anti-erase";
default:
return "gimp:layer-mode";
}
return "gimp:layer-mode";
}
GimpLayerModeGroup
gimp_layer_mode_get_group (GimpLayerMode mode)
{
if (gimp_layer_mode_is_legacy (mode))
{
return GIMP_LAYER_MODE_GROUP_LEGACY;
}
else if (gimp_layer_mode_get_blend_space (mode) ==
GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL)
{
return GIMP_LAYER_MODE_GROUP_PERCEPTUAL;
}
return GIMP_LAYER_MODE_GROUP_LINEAR;
}
gboolean
gimp_layer_mode_get_for_group (GimpLayerMode old_mode,
GimpLayerModeGroup new_group,
GimpLayerMode *new_mode)
{
static GimpLayerMode mode_groups[][4] =
{
{
GIMP_LAYER_MODE_NORMAL,
GIMP_LAYER_MODE_NORMAL_LINEAR,
GIMP_LAYER_MODE_NORMAL,
GIMP_LAYER_MODE_NORMAL
},
{
GIMP_LAYER_MODE_DISSOLVE,
GIMP_LAYER_MODE_DISSOLVE,
GIMP_LAYER_MODE_DISSOLVE,
GIMP_LAYER_MODE_DISSOLVE
},
{
GIMP_LAYER_MODE_BEHIND,
GIMP_LAYER_MODE_BEHIND_LINEAR,
GIMP_LAYER_MODE_BEHIND,
GIMP_LAYER_MODE_BEHIND
},
{
GIMP_LAYER_MODE_MULTIPLY,
GIMP_LAYER_MODE_MULTIPLY_LINEAR,
GIMP_LAYER_MODE_MULTIPLY,
GIMP_LAYER_MODE_MULTIPLY_LEGACY
},
{
GIMP_LAYER_MODE_SCREEN,
GIMP_LAYER_MODE_SCREEN_LINEAR,
GIMP_LAYER_MODE_SCREEN,
GIMP_LAYER_MODE_SCREEN_LEGACY
},
{
GIMP_LAYER_MODE_OVERLAY,
GIMP_LAYER_MODE_OVERLAY_LINEAR,
GIMP_LAYER_MODE_OVERLAY,
-1
},
{
GIMP_LAYER_MODE_DIFFERENCE,
GIMP_LAYER_MODE_DIFFERENCE_LINEAR,
GIMP_LAYER_MODE_DIFFERENCE,
GIMP_LAYER_MODE_DIFFERENCE_LEGACY
},
{
GIMP_LAYER_MODE_ADDITION,
GIMP_LAYER_MODE_ADDITION_LINEAR,
GIMP_LAYER_MODE_ADDITION,
GIMP_LAYER_MODE_ADDITION_LEGACY
},
{
GIMP_LAYER_MODE_SUBTRACT,
GIMP_LAYER_MODE_SUBTRACT_LINEAR,
GIMP_LAYER_MODE_SUBTRACT,
GIMP_LAYER_MODE_SUBTRACT_LEGACY
},
{
GIMP_LAYER_MODE_DARKEN_ONLY,
GIMP_LAYER_MODE_DARKEN_ONLY,
GIMP_LAYER_MODE_DARKEN_ONLY,
GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY
},
{
GIMP_LAYER_MODE_LIGHTEN_ONLY,
GIMP_LAYER_MODE_LIGHTEN_ONLY,
GIMP_LAYER_MODE_LIGHTEN_ONLY,
GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY
},
{
GIMP_LAYER_MODE_HSV_HUE,
-1,
GIMP_LAYER_MODE_HSV_HUE,
GIMP_LAYER_MODE_HSV_HUE_LEGACY
},
{
GIMP_LAYER_MODE_HSV_SATURATION,
-1,
GIMP_LAYER_MODE_HSV_SATURATION,
GIMP_LAYER_MODE_HSV_SATURATION_LEGACY
},
{
GIMP_LAYER_MODE_HSV_COLOR,
-1,
GIMP_LAYER_MODE_HSV_COLOR,
GIMP_LAYER_MODE_HSV_COLOR_LEGACY
},
{
GIMP_LAYER_MODE_HSV_VALUE,
-1,
GIMP_LAYER_MODE_HSV_VALUE,
GIMP_LAYER_MODE_HSV_VALUE_LEGACY
},
{
GIMP_LAYER_MODE_DIVIDE,
GIMP_LAYER_MODE_DIVIDE_LINEAR,
GIMP_LAYER_MODE_DIVIDE,
GIMP_LAYER_MODE_DIVIDE_LEGACY
},
{
GIMP_LAYER_MODE_DODGE,
GIMP_LAYER_MODE_DODGE_LINEAR,
GIMP_LAYER_MODE_DODGE,
GIMP_LAYER_MODE_DODGE_LEGACY
},
{
GIMP_LAYER_MODE_BURN,
GIMP_LAYER_MODE_BURN_LINEAR,
GIMP_LAYER_MODE_BURN,
GIMP_LAYER_MODE_BURN_LEGACY
},
{
GIMP_LAYER_MODE_HARDLIGHT,
GIMP_LAYER_MODE_HARDLIGHT_LINEAR,
GIMP_LAYER_MODE_HARDLIGHT,
GIMP_LAYER_MODE_HARDLIGHT_LEGACY
},
{
GIMP_LAYER_MODE_SOFTLIGHT,
GIMP_LAYER_MODE_SOFTLIGHT_LINEAR,
GIMP_LAYER_MODE_SOFTLIGHT,
GIMP_LAYER_MODE_SOFTLIGHT_LEGACY
},
{
GIMP_LAYER_MODE_GRAIN_EXTRACT,
GIMP_LAYER_MODE_GRAIN_EXTRACT_LINEAR,
GIMP_LAYER_MODE_GRAIN_EXTRACT,
GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY
},
{
GIMP_LAYER_MODE_GRAIN_MERGE,
GIMP_LAYER_MODE_GRAIN_MERGE_LINEAR,
GIMP_LAYER_MODE_GRAIN_MERGE,
GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY
},
{
GIMP_LAYER_MODE_COLOR_ERASE,
-1,
GIMP_LAYER_MODE_COLOR_ERASE,
-1,
},
{
GIMP_LAYER_MODE_VIVID_LIGHT,
GIMP_LAYER_MODE_VIVID_LIGHT_LINEAR,
GIMP_LAYER_MODE_VIVID_LIGHT,
-1
},
{
GIMP_LAYER_MODE_PIN_LIGHT,
GIMP_LAYER_MODE_PIN_LIGHT_LINEAR,
GIMP_LAYER_MODE_PIN_LIGHT,
-1
},
{
GIMP_LAYER_MODE_LINEAR_LIGHT,
GIMP_LAYER_MODE_LINEAR_LIGHT_LINEAR,
GIMP_LAYER_MODE_LINEAR_LIGHT,
-1
},
{
GIMP_LAYER_MODE_EXCLUSION,
GIMP_LAYER_MODE_EXCLUSION_LINEAR,
GIMP_LAYER_MODE_EXCLUSION,
-1
},
{
GIMP_LAYER_MODE_LINEAR_BURN,
GIMP_LAYER_MODE_LINEAR_BURN_LINEAR,
GIMP_LAYER_MODE_LINEAR_BURN,
-1
},
{
GIMP_LAYER_MODE_LUMINANCE_DARKEN_ONLY,
GIMP_LAYER_MODE_LUMINANCE_DARKEN_ONLY,
GIMP_LAYER_MODE_LUMINANCE_DARKEN_ONLY,
-1
},
{
GIMP_LAYER_MODE_LUMINANCE_LIGHTEN_ONLY,
GIMP_LAYER_MODE_LUMINANCE_LIGHTEN_ONLY,
GIMP_LAYER_MODE_LUMINANCE_LIGHTEN_ONLY,
-1
},
{
GIMP_LAYER_MODE_ERASE,
GIMP_LAYER_MODE_ERASE,
-1,
-1
},
{
GIMP_LAYER_MODE_REPLACE,
GIMP_LAYER_MODE_REPLACE,
-1,
-1
},
{
GIMP_LAYER_MODE_ANTI_ERASE,
GIMP_LAYER_MODE_ANTI_ERASE,
-1,
-1
},
};
gint i;
g_return_val_if_fail (new_mode != NULL, FALSE);
for (i = 0; i < G_N_ELEMENTS (mode_groups); i++)
{
gint j;
for (j = 0; j < 4; j++)
{
if (mode_groups[i][j] == old_mode)
{
*new_mode = mode_groups[i][new_group];
if (*new_mode != -1)
return TRUE;
return FALSE;
}
}
}
*new_mode = -1;
return FALSE;
}
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