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PIKApp/app/operations/layer-modes/pika-layer-modes.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
*
* pika-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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <glib-object.h>
#include <gegl.h>
#include "../operations-types.h"
#include "gegl/pika-babl.h"
#include "pikaoperationlayermode.h"
#include "pikaoperationlayermode-blend.h"
#include "pika-layer-modes.h"
typedef struct _PikaLayerModeInfo PikaLayerModeInfo;
struct _PikaLayerModeInfo
{
PikaLayerMode layer_mode;
const gchar *op_name;
PikaLayerModeBlendFunc blend_function;
PikaLayerModeFlags flags;
PikaLayerModeContext context;
PikaLayerCompositeMode paint_composite_mode;
PikaLayerCompositeMode composite_mode;
PikaLayerColorSpace composite_space;
PikaLayerColorSpace blend_space;
};
/* static variables */
static const PikaLayerModeInfo layer_mode_infos[] =
{
{ PIKA_LAYER_MODE_NORMAL_LEGACY,
.op_name = "pika:normal",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_TRIVIAL,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_DISSOLVE,
.op_name = "pika:dissolve",
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_TRIVIAL,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_UNION
},
{ PIKA_LAYER_MODE_BEHIND_LEGACY,
.op_name = "pika:behind",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_PAINT |
PIKA_LAYER_MODE_CONTEXT_FILTER,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_MULTIPLY_LEGACY,
.op_name = "pika:multiply-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_SCREEN_LEGACY,
.op_name = "pika:screen-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_OVERLAY_LEGACY,
.op_name = "pika:softlight-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_DIFFERENCE_LEGACY,
.op_name = "pika:difference-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_ADDITION_LEGACY,
.op_name = "pika:addition-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_SUBTRACT_LEGACY,
.op_name = "pika:subtract-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_DARKEN_ONLY_LEGACY,
.op_name = "pika:darken-only-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_LIGHTEN_ONLY_LEGACY,
.op_name = "pika:lighten-only-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HSV_HUE_LEGACY,
.op_name = "pika:hsv-hue-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HSV_SATURATION_LEGACY,
.op_name = "pika:hsv-saturation-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HSL_COLOR_LEGACY,
.op_name = "pika:hsl-color-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HSV_VALUE_LEGACY,
.op_name = "pika:hsv-value-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_DIVIDE_LEGACY,
.op_name = "pika:divide-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_DODGE_LEGACY,
.op_name = "pika:dodge-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_BURN_LEGACY,
.op_name = "pika:burn-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HARDLIGHT_LEGACY,
.op_name = "pika:hardlight-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_SOFTLIGHT_LEGACY,
.op_name = "pika:softlight-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_GRAIN_EXTRACT_LEGACY,
.op_name = "pika:grain-extract-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_GRAIN_MERGE_LEGACY,
.op_name = "pika:grain-merge-legacy",
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_COLOR_ERASE_LEGACY,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_color_erase,
.flags = PIKA_LAYER_MODE_FLAG_LEGACY |
PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_SUBTRACTIVE,
.context = PIKA_LAYER_MODE_CONTEXT_PAINT |
PIKA_LAYER_MODE_CONTEXT_FILTER,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_OVERLAY,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_overlay,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_LCH_HUE,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_lch_hue,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_LAB
},
{ PIKA_LAYER_MODE_LCH_CHROMA,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_lch_chroma,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_LAB
},
{ PIKA_LAYER_MODE_LCH_COLOR,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_lch_color,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_LAB
},
{ PIKA_LAYER_MODE_LCH_LIGHTNESS,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_lch_lightness,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_LAB
},
{ PIKA_LAYER_MODE_NORMAL,
.op_name = "pika:normal",
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_TRIVIAL,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_BEHIND,
.op_name = "pika:behind",
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_PAINT |
PIKA_LAYER_MODE_CONTEXT_FILTER,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_MULTIPLY,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_multiply,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_SCREEN,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_screen,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_DIFFERENCE,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_difference,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_ADDITION,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_addition,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_SUBTRACT,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_subtract,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_DARKEN_ONLY,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_darken_only,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
/* no blend_space: reuse composite space, no conversion thus fewer copies */
},
{ PIKA_LAYER_MODE_LIGHTEN_ONLY,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_lighten_only,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
/* no blend_space: reuse composite space, no conversion thus fewer copies */
},
{ PIKA_LAYER_MODE_HSV_HUE,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_hsv_hue,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HSV_SATURATION,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_hsv_saturation,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HSL_COLOR,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_hsl_color,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HSV_VALUE,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_hsv_value,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_DIVIDE,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_divide,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_DODGE,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_dodge,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_BURN,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_burn,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HARDLIGHT,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_hardlight,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_SOFTLIGHT,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_softlight,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_GRAIN_EXTRACT,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_grain_extract,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_GRAIN_MERGE,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_grain_merge,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_VIVID_LIGHT,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_vivid_light,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_PIN_LIGHT,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_pin_light,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_LINEAR_LIGHT,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_linear_light,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_HARD_MIX,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_hard_mix,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_EXCLUSION,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_exclusion,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_LINEAR_BURN,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_linear_burn,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_LUMA_DARKEN_ONLY,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_luma_darken_only,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_LUMA_LIGHTEN_ONLY,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_luma_lighten_only,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL
},
{ PIKA_LAYER_MODE_LUMINANCE,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_luminance,
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_COLOR_ERASE,
.op_name = "pika:layer-mode",
.blend_function = pika_operation_layer_mode_blend_color_erase,
.flags = PIKA_LAYER_MODE_FLAG_SUBTRACTIVE,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR,
.blend_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_ERASE,
.op_name = "pika:erase",
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_SUBTRACTIVE |
PIKA_LAYER_MODE_FLAG_ALPHA_ONLY |
PIKA_LAYER_MODE_FLAG_TRIVIAL,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_MERGE,
.op_name = "pika:merge",
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_TRIVIAL,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_SPLIT,
.op_name = "pika:split",
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_SUBTRACTIVE |
PIKA_LAYER_MODE_FLAG_ALPHA_ONLY |
PIKA_LAYER_MODE_FLAG_TRIVIAL,
.context = PIKA_LAYER_MODE_CONTEXT_ALL,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP,
.composite_mode = PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP
},
{ PIKA_LAYER_MODE_PASS_THROUGH,
.op_name = "pika:pass-through",
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_TRIVIAL,
.context = PIKA_LAYER_MODE_CONTEXT_GROUP,
.composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_REPLACE,
.op_name = "pika:replace",
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_TRIVIAL,
.context = PIKA_LAYER_MODE_CONTEXT_FILTER,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_space = PIKA_LAYER_COLOR_SPACE_RGB_LINEAR
},
{ PIKA_LAYER_MODE_ANTI_ERASE,
.op_name = "pika:anti-erase",
.flags = PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE |
PIKA_LAYER_MODE_FLAG_ALPHA_ONLY,
.paint_composite_mode = PIKA_LAYER_COMPOSITE_UNION,
.composite_mode = PIKA_LAYER_COMPOSITE_UNION
}
};
static const PikaLayerMode layer_mode_group_default[] =
{
PIKA_LAYER_MODE_PASS_THROUGH,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_REPLACE,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_NORMAL,
PIKA_LAYER_MODE_DISSOLVE,
PIKA_LAYER_MODE_BEHIND,
PIKA_LAYER_MODE_COLOR_ERASE,
PIKA_LAYER_MODE_ERASE,
PIKA_LAYER_MODE_ANTI_ERASE,
PIKA_LAYER_MODE_MERGE,
PIKA_LAYER_MODE_SPLIT,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_LIGHTEN_ONLY,
PIKA_LAYER_MODE_LUMA_LIGHTEN_ONLY,
PIKA_LAYER_MODE_SCREEN,
PIKA_LAYER_MODE_DODGE,
PIKA_LAYER_MODE_ADDITION,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_DARKEN_ONLY,
PIKA_LAYER_MODE_LUMA_DARKEN_ONLY,
PIKA_LAYER_MODE_MULTIPLY,
PIKA_LAYER_MODE_BURN,
PIKA_LAYER_MODE_LINEAR_BURN,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_OVERLAY,
PIKA_LAYER_MODE_SOFTLIGHT,
PIKA_LAYER_MODE_HARDLIGHT,
PIKA_LAYER_MODE_VIVID_LIGHT,
PIKA_LAYER_MODE_PIN_LIGHT,
PIKA_LAYER_MODE_LINEAR_LIGHT,
PIKA_LAYER_MODE_HARD_MIX,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_DIFFERENCE,
PIKA_LAYER_MODE_EXCLUSION,
PIKA_LAYER_MODE_SUBTRACT,
PIKA_LAYER_MODE_GRAIN_EXTRACT,
PIKA_LAYER_MODE_GRAIN_MERGE,
PIKA_LAYER_MODE_DIVIDE,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_HSV_HUE,
PIKA_LAYER_MODE_HSV_SATURATION,
PIKA_LAYER_MODE_HSL_COLOR,
PIKA_LAYER_MODE_HSV_VALUE,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_LCH_HUE,
PIKA_LAYER_MODE_LCH_CHROMA,
PIKA_LAYER_MODE_LCH_COLOR,
PIKA_LAYER_MODE_LCH_LIGHTNESS,
PIKA_LAYER_MODE_LUMINANCE
};
static const PikaLayerMode layer_mode_group_legacy[] =
{
PIKA_LAYER_MODE_NORMAL_LEGACY,
PIKA_LAYER_MODE_DISSOLVE,
PIKA_LAYER_MODE_BEHIND_LEGACY,
PIKA_LAYER_MODE_COLOR_ERASE_LEGACY,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_LIGHTEN_ONLY_LEGACY,
PIKA_LAYER_MODE_SCREEN_LEGACY,
PIKA_LAYER_MODE_DODGE_LEGACY,
PIKA_LAYER_MODE_ADDITION_LEGACY,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_DARKEN_ONLY_LEGACY,
PIKA_LAYER_MODE_MULTIPLY_LEGACY,
PIKA_LAYER_MODE_BURN_LEGACY,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_OVERLAY,
PIKA_LAYER_MODE_SOFTLIGHT_LEGACY,
PIKA_LAYER_MODE_HARDLIGHT_LEGACY,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_DIFFERENCE_LEGACY,
PIKA_LAYER_MODE_SUBTRACT_LEGACY,
PIKA_LAYER_MODE_GRAIN_EXTRACT_LEGACY,
PIKA_LAYER_MODE_GRAIN_MERGE_LEGACY,
PIKA_LAYER_MODE_DIVIDE_LEGACY,
PIKA_LAYER_MODE_SEPARATOR,
PIKA_LAYER_MODE_HSV_HUE_LEGACY,
PIKA_LAYER_MODE_HSV_SATURATION_LEGACY,
PIKA_LAYER_MODE_HSL_COLOR_LEGACY,
PIKA_LAYER_MODE_HSV_VALUE_LEGACY
};
static const PikaLayerMode layer_mode_groups[][2] =
{
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_NORMAL,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_NORMAL_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_DISSOLVE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_DISSOLVE
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_BEHIND,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_BEHIND_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_MULTIPLY,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_MULTIPLY_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_SCREEN,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_SCREEN_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_OVERLAY,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_DIFFERENCE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_DIFFERENCE_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_ADDITION,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_ADDITION_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_SUBTRACT,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_SUBTRACT_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_DARKEN_ONLY,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_DARKEN_ONLY_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_LIGHTEN_ONLY,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_LIGHTEN_ONLY_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_HSV_HUE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_HSV_HUE_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_HSV_SATURATION,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_HSV_SATURATION_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_HSL_COLOR,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_HSL_COLOR_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_HSV_VALUE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_HSV_VALUE_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_DIVIDE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_DIVIDE_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_DODGE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_DODGE_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_BURN,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_BURN_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_HARDLIGHT,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_HARDLIGHT_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_SOFTLIGHT,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_SOFTLIGHT_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_GRAIN_EXTRACT,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_GRAIN_EXTRACT_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_GRAIN_MERGE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_GRAIN_MERGE_LEGACY
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_COLOR_ERASE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = PIKA_LAYER_MODE_COLOR_ERASE_LEGACY,
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_VIVID_LIGHT,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_PIN_LIGHT,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_LINEAR_LIGHT,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_HARD_MIX,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_EXCLUSION,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_LINEAR_BURN,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_LUMA_DARKEN_ONLY,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_LUMA_LIGHTEN_ONLY,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_LUMINANCE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_ERASE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_MERGE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_SPLIT,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_PASS_THROUGH,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1,
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_REPLACE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
},
{ [PIKA_LAYER_MODE_GROUP_DEFAULT] = PIKA_LAYER_MODE_ANTI_ERASE,
[PIKA_LAYER_MODE_GROUP_LEGACY ] = -1
}
};
static GeglOperation *ops[G_N_ELEMENTS (layer_mode_infos)] = { 0 };
/* public functions */
void
pika_layer_modes_init (void)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (layer_mode_infos); i++)
{
pika_assert ((PikaLayerMode) i == layer_mode_infos[i].layer_mode);
}
}
void
pika_layer_modes_exit (void)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (layer_mode_infos); i++)
{
if (ops[i])
{
GeglNode *node;
node = ops[i]->node;
g_object_unref (node);
ops[i] = NULL;
}
}
}
static const PikaLayerModeInfo *
pika_layer_mode_info (PikaLayerMode mode)
{
g_return_val_if_fail (mode >= 0 && mode < G_N_ELEMENTS (layer_mode_infos),
&layer_mode_infos[0]);
return &layer_mode_infos[mode];
}
gboolean
pika_layer_mode_is_legacy (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return FALSE;
return (info->flags & PIKA_LAYER_MODE_FLAG_LEGACY) != 0;
}
gboolean
pika_layer_mode_is_blend_space_mutable (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return FALSE;
return (info->flags & PIKA_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE) == 0;
}
gboolean
pika_layer_mode_is_composite_space_mutable (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return FALSE;
return (info->flags & PIKA_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE) == 0;
}
gboolean
pika_layer_mode_is_composite_mode_mutable (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return FALSE;
return (info->flags & PIKA_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE) == 0;
}
gboolean
pika_layer_mode_is_subtractive (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return FALSE;
return (info->flags & PIKA_LAYER_MODE_FLAG_SUBTRACTIVE) != 0;
}
gboolean
pika_layer_mode_is_alpha_only (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return FALSE;
return (info->flags & PIKA_LAYER_MODE_FLAG_ALPHA_ONLY) != 0;
}
gboolean
pika_layer_mode_is_trivial (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return FALSE;
return (info->flags & PIKA_LAYER_MODE_FLAG_TRIVIAL) != 0;
}
PikaLayerColorSpace
pika_layer_mode_get_blend_space (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return PIKA_LAYER_COLOR_SPACE_RGB_LINEAR;
return info->blend_space;
}
PikaLayerColorSpace
pika_layer_mode_get_composite_space (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return PIKA_LAYER_COLOR_SPACE_RGB_LINEAR;
return info->composite_space;
}
PikaLayerCompositeMode
pika_layer_mode_get_composite_mode (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return PIKA_LAYER_COMPOSITE_UNION;
return info->composite_mode;
}
PikaLayerCompositeMode
pika_layer_mode_get_paint_composite_mode (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return PIKA_LAYER_COMPOSITE_UNION;
return info->paint_composite_mode;
}
const gchar *
pika_layer_mode_get_operation_name (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return "pika:layer-mode";
return info->op_name;
}
/**
* pika_layer_mode_get_operation:
* @mode:
*
* Returns: a #GeglOperation for @mode which may be reused and must not
* be freed.
*/
GeglOperation *
pika_layer_mode_get_operation (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
const gchar *op_name;
op_name = pika_layer_mode_get_operation_name (mode);
if (! info)
info = layer_mode_infos;
mode = info - layer_mode_infos;
if (! ops[mode])
{
GeglNode *node;
GeglOperation *operation;
node = gegl_node_new_child (NULL,
"operation", op_name,
NULL);
operation = gegl_node_get_gegl_operation (node);
ops[mode] = operation;
if (PIKA_IS_OPERATION_LAYER_MODE (operation))
{
PikaOperationLayerMode *layer_mode = PIKA_OPERATION_LAYER_MODE (operation);
layer_mode->layer_mode = mode;
layer_mode->function = PIKA_OPERATION_LAYER_MODE_GET_CLASS (operation)->process;
layer_mode->blend_function = pika_layer_mode_get_blend_function (mode);
layer_mode->blend_space = pika_layer_mode_get_blend_space (mode);
layer_mode->composite_space = pika_layer_mode_get_composite_space (mode);
layer_mode->composite_mode = pika_layer_mode_get_paint_composite_mode (mode);
}
}
return ops[mode];
}
PikaLayerModeFunc
pika_layer_mode_get_function (PikaLayerMode mode)
{
GeglOperation *operation;
operation = pika_layer_mode_get_operation (mode);
return PIKA_OPERATION_LAYER_MODE_GET_CLASS (operation)->process;
}
PikaLayerModeBlendFunc
pika_layer_mode_get_blend_function (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return NULL;
return info->blend_function;
}
PikaLayerModeContext
pika_layer_mode_get_context (PikaLayerMode mode)
{
const PikaLayerModeInfo *info = pika_layer_mode_info (mode);
if (! info)
return 0;
return info->context;
}
PikaLayerMode *
pika_layer_mode_get_context_array (PikaLayerMode mode,
PikaLayerModeContext context,
gint *n_modes)
{
PikaLayerModeGroup group;
const PikaLayerMode *group_modes;
gint n_group_modes;
PikaLayerMode *array;
gint i;
group = pika_layer_mode_get_group (mode);
group_modes = pika_layer_mode_get_group_array (group, &n_group_modes);
array = g_new0 (PikaLayerMode, n_group_modes);
*n_modes = 0;
for (i = 0; i < n_group_modes; i++)
{
if (group_modes[i] != PIKA_LAYER_MODE_SEPARATOR &&
(pika_layer_mode_get_context (group_modes[i]) & context))
{
array[*n_modes] = group_modes[i];
(*n_modes)++;
}
}
return array;
}
static gboolean
is_mode_in_array (const PikaLayerMode *modes,
gint n_modes,
PikaLayerMode mode)
{
gint i;
for (i = 0; i < n_modes; i++)
{
if (modes[i] == mode)
return TRUE;
}
return FALSE;
}
PikaLayerModeGroup
pika_layer_mode_get_group (PikaLayerMode mode)
{
if (is_mode_in_array (layer_mode_group_default,
G_N_ELEMENTS (layer_mode_group_default), mode))
{
return PIKA_LAYER_MODE_GROUP_DEFAULT;
}
else if (is_mode_in_array (layer_mode_group_legacy,
G_N_ELEMENTS (layer_mode_group_legacy), mode))
{
return PIKA_LAYER_MODE_GROUP_LEGACY;
}
return PIKA_LAYER_MODE_GROUP_DEFAULT;
}
const PikaLayerMode *
pika_layer_mode_get_group_array (PikaLayerModeGroup group,
gint *n_modes)
{
g_return_val_if_fail (n_modes != NULL, NULL);
switch (group)
{
case PIKA_LAYER_MODE_GROUP_DEFAULT:
*n_modes = G_N_ELEMENTS (layer_mode_group_default);
return layer_mode_group_default;
case PIKA_LAYER_MODE_GROUP_LEGACY:
*n_modes = G_N_ELEMENTS (layer_mode_group_legacy);
return layer_mode_group_legacy;
default:
g_return_val_if_reached (NULL);
}
}
gboolean
pika_layer_mode_get_for_group (PikaLayerMode old_mode,
PikaLayerModeGroup new_group,
PikaLayerMode *new_mode)
{
gint i;
g_return_val_if_fail (new_mode != NULL, FALSE);
for (i = 0; i < G_N_ELEMENTS (layer_mode_groups); i++)
{
if (is_mode_in_array (layer_mode_groups[i], 2, old_mode))
{
*new_mode = layer_mode_groups[i][new_group];
if (*new_mode != -1)
return TRUE;
return FALSE;
}
}
*new_mode = -1;
return FALSE;
}
const Babl *
pika_layer_mode_get_format (PikaLayerMode mode,
PikaLayerColorSpace blend_space,
PikaLayerColorSpace composite_space,
PikaLayerCompositeMode composite_mode,
const Babl *preferred_format)
{
PikaLayerCompositeRegion composite_region;
/* for now, all modes perform i/o in the composite space. */
(void) mode;
(void) blend_space;
if (composite_space == PIKA_LAYER_COLOR_SPACE_AUTO)
composite_space = pika_layer_mode_get_composite_space (mode);
if (composite_mode == PIKA_LAYER_COMPOSITE_AUTO)
composite_mode = pika_layer_mode_get_composite_mode (mode);
composite_region = pika_layer_mode_get_included_region (mode, composite_mode);
if (pika_layer_mode_is_alpha_only (mode))
{
if (composite_region != PIKA_LAYER_COMPOSITE_REGION_UNION)
{
/* alpha-only layer modes don't combine colors in non-union composite
* modes, hence we can disregard the composite space.
*/
composite_space = PIKA_LAYER_COLOR_SPACE_AUTO;
}
}
else if (pika_layer_mode_is_trivial (mode))
{
if (! (composite_region & PIKA_LAYER_COMPOSITE_REGION_DESTINATION))
{
/* trivial layer modes don't combine colors when only the source
* region is included, hence we can disregard the composite space.
*/
composite_space = PIKA_LAYER_COLOR_SPACE_AUTO;
}
}
switch (composite_space)
{
case PIKA_LAYER_COLOR_SPACE_AUTO:
/* compositing is color-space agnostic. return a format that has a fast
* conversion path to/from the preferred format.
*/
if (! preferred_format ||
pika_babl_format_get_trc (preferred_format) == PIKA_TRC_LINEAR)
return babl_format_with_space ("RGBA float", preferred_format);
else
return babl_format_with_space ("R'G'B'A float", preferred_format);
case PIKA_LAYER_COLOR_SPACE_RGB_LINEAR:
return babl_format_with_space ("RGBA float", preferred_format);
case PIKA_LAYER_COLOR_SPACE_RGB_PERCEPTUAL:
return babl_format_with_space ("R'G'B'A float", preferred_format);
case PIKA_LAYER_COLOR_SPACE_LAB:
return babl_format_with_space ("CIE Lab alpha float", preferred_format);
}
g_return_val_if_reached (babl_format_with_space ("RGBA float", preferred_format));
}
PikaLayerCompositeRegion
pika_layer_mode_get_included_region (PikaLayerMode mode,
PikaLayerCompositeMode composite_mode)
{
if (composite_mode == PIKA_LAYER_COMPOSITE_AUTO)
composite_mode = pika_layer_mode_get_composite_mode (mode);
switch (composite_mode)
{
case PIKA_LAYER_COMPOSITE_UNION:
return PIKA_LAYER_COMPOSITE_REGION_UNION;
case PIKA_LAYER_COMPOSITE_CLIP_TO_BACKDROP:
return PIKA_LAYER_COMPOSITE_REGION_DESTINATION;
case PIKA_LAYER_COMPOSITE_CLIP_TO_LAYER:
return PIKA_LAYER_COMPOSITE_REGION_SOURCE;
case PIKA_LAYER_COMPOSITE_INTERSECTION:
return PIKA_LAYER_COMPOSITE_REGION_INTERSECTION;
default:
g_return_val_if_reached (PIKA_LAYER_COMPOSITE_REGION_INTERSECTION);
}
}
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