diff options
Diffstat (limited to 'app/operations/layer-modes/gimp-layer-modes.c')
| -rw-r--r-- | app/operations/layer-modes/gimp-layer-modes.c | 1522 |
1 files changed, 1522 insertions, 0 deletions
diff --git a/app/operations/layer-modes/gimp-layer-modes.c b/app/operations/layer-modes/gimp-layer-modes.c new file mode 100644 index 0000000..deb1f3d --- /dev/null +++ b/app/operations/layer-modes/gimp-layer-modes.c @@ -0,0 +1,1522 @@ +/* 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 <https://www.gnu.org/licenses/>. + */ + +#include "config.h" + +#include <glib-object.h> +#include <gegl.h> + +#include "../operations-types.h" + +#include "gegl/gimp-babl.h" + +#include "gimpoperationlayermode.h" +#include "gimpoperationlayermode-blend.h" + +#include "gimp-layer-modes.h" + + +typedef struct _GimpLayerModeInfo GimpLayerModeInfo; + +struct _GimpLayerModeInfo +{ + GimpLayerMode layer_mode; + const gchar *op_name; + GimpLayerModeBlendFunc blend_function; + GimpLayerModeFlags flags; + GimpLayerModeContext context; + GimpLayerCompositeMode paint_composite_mode; + GimpLayerCompositeMode composite_mode; + GimpLayerColorSpace composite_space; + GimpLayerColorSpace blend_space; +}; + + +/* static variables */ + +static const GimpLayerModeInfo layer_mode_infos[] = +{ + { GIMP_LAYER_MODE_NORMAL_LEGACY, + + .op_name = "gimp:normal", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_TRIVIAL, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_DISSOLVE, + + .op_name = "gimp:dissolve", + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_TRIVIAL, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_UNION + }, + + { GIMP_LAYER_MODE_BEHIND_LEGACY, + + .op_name = "gimp:behind", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_PAINT | + GIMP_LAYER_MODE_CONTEXT_FILTER, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_MULTIPLY_LEGACY, + + .op_name = "gimp:multiply-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_SCREEN_LEGACY, + + .op_name = "gimp:screen-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_OVERLAY_LEGACY, + + .op_name = "gimp:softlight-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_DIFFERENCE_LEGACY, + + .op_name = "gimp:difference-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_ADDITION_LEGACY, + + .op_name = "gimp:addition-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_SUBTRACT_LEGACY, + + .op_name = "gimp:subtract-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY, + + .op_name = "gimp:darken-only-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY, + + .op_name = "gimp:lighten-only-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HSV_HUE_LEGACY, + + .op_name = "gimp:hsv-hue-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HSV_SATURATION_LEGACY, + + .op_name = "gimp:hsv-saturation-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HSL_COLOR_LEGACY, + + .op_name = "gimp:hsl-color-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HSV_VALUE_LEGACY, + + .op_name = "gimp:hsv-value-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_DIVIDE_LEGACY, + + .op_name = "gimp:divide-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_DODGE_LEGACY, + + .op_name = "gimp:dodge-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_BURN_LEGACY, + + .op_name = "gimp:burn-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HARDLIGHT_LEGACY, + + .op_name = "gimp:hardlight-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_SOFTLIGHT_LEGACY, + + .op_name = "gimp:softlight-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY, + + .op_name = "gimp:grain-extract-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY, + + .op_name = "gimp:grain-merge-legacy", + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_COLOR_ERASE_LEGACY, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_color_erase, + .flags = GIMP_LAYER_MODE_FLAG_LEGACY | + GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_SUBTRACTIVE, + .context = GIMP_LAYER_MODE_CONTEXT_PAINT | + GIMP_LAYER_MODE_CONTEXT_FILTER, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_OVERLAY, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_overlay, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_LCH_HUE, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_lch_hue, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_LAB + }, + + { GIMP_LAYER_MODE_LCH_CHROMA, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_lch_chroma, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_LAB + }, + + { GIMP_LAYER_MODE_LCH_COLOR, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_lch_color, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_LAB + }, + + { GIMP_LAYER_MODE_LCH_LIGHTNESS, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_lch_lightness, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_LAB + }, + + { GIMP_LAYER_MODE_NORMAL, + + .op_name = "gimp:normal", + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_TRIVIAL, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_BEHIND, + + .op_name = "gimp:behind", + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_PAINT | + GIMP_LAYER_MODE_CONTEXT_FILTER, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_MULTIPLY, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_multiply, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_SCREEN, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_screen, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_DIFFERENCE, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_difference, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_ADDITION, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_addition, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_SUBTRACT, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_subtract, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_DARKEN_ONLY, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_darken_only, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + /* no blend_space: reuse composite space, no conversion thus fewer copies */ + }, + + { GIMP_LAYER_MODE_LIGHTEN_ONLY, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_lighten_only, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + /* no blend_space: reuse composite space, no conversion thus fewer copies */ + }, + + { GIMP_LAYER_MODE_HSV_HUE, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_hsv_hue, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HSV_SATURATION, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_hsv_saturation, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HSL_COLOR, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_hsl_color, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HSV_VALUE, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_hsv_value, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_DIVIDE, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_divide, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_DODGE, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_dodge, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_BURN, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_burn, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HARDLIGHT, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_hardlight, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_SOFTLIGHT, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_softlight, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_GRAIN_EXTRACT, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_grain_extract, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_GRAIN_MERGE, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_grain_merge, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_VIVID_LIGHT, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_vivid_light, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_PIN_LIGHT, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_pin_light, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_LINEAR_LIGHT, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_linear_light, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_HARD_MIX, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_hard_mix, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_EXCLUSION, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_exclusion, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_LINEAR_BURN, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_linear_burn, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_LUMA_DARKEN_ONLY, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_luma_darken_only, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_LUMA_LIGHTEN_ONLY, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_luma_lighten_only, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL + }, + + { GIMP_LAYER_MODE_LUMINANCE, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_luminance, + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_COLOR_ERASE, + + .op_name = "gimp:layer-mode", + .blend_function = gimp_operation_layer_mode_blend_color_erase, + .flags = GIMP_LAYER_MODE_FLAG_SUBTRACTIVE, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR, + .blend_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_ERASE, + + .op_name = "gimp:erase", + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_SUBTRACTIVE | + GIMP_LAYER_MODE_FLAG_ALPHA_ONLY | + GIMP_LAYER_MODE_FLAG_TRIVIAL, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_MERGE, + + .op_name = "gimp:merge", + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_TRIVIAL, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_SPLIT, + + .op_name = "gimp:split", + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_SUBTRACTIVE | + GIMP_LAYER_MODE_FLAG_ALPHA_ONLY | + GIMP_LAYER_MODE_FLAG_TRIVIAL, + .context = GIMP_LAYER_MODE_CONTEXT_ALL, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP, + .composite_mode = GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP + }, + + { GIMP_LAYER_MODE_PASS_THROUGH, + + .op_name = "gimp:pass-through", + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_TRIVIAL, + .context = GIMP_LAYER_MODE_CONTEXT_GROUP, + .composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_REPLACE, + + .op_name = "gimp:replace", + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_TRIVIAL, + .context = GIMP_LAYER_MODE_CONTEXT_FILTER, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_space = GIMP_LAYER_COLOR_SPACE_RGB_LINEAR + }, + + { GIMP_LAYER_MODE_ANTI_ERASE, + + .op_name = "gimp:anti-erase", + .flags = GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE | + GIMP_LAYER_MODE_FLAG_ALPHA_ONLY, + .paint_composite_mode = GIMP_LAYER_COMPOSITE_UNION, + .composite_mode = GIMP_LAYER_COMPOSITE_UNION + } +}; + +static const GimpLayerMode layer_mode_group_default[] = +{ + GIMP_LAYER_MODE_PASS_THROUGH, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_REPLACE, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_NORMAL, + GIMP_LAYER_MODE_DISSOLVE, + GIMP_LAYER_MODE_BEHIND, + GIMP_LAYER_MODE_COLOR_ERASE, + GIMP_LAYER_MODE_ERASE, + GIMP_LAYER_MODE_ANTI_ERASE, + GIMP_LAYER_MODE_MERGE, + GIMP_LAYER_MODE_SPLIT, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_LIGHTEN_ONLY, + GIMP_LAYER_MODE_LUMA_LIGHTEN_ONLY, + GIMP_LAYER_MODE_SCREEN, + GIMP_LAYER_MODE_DODGE, + GIMP_LAYER_MODE_ADDITION, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_DARKEN_ONLY, + GIMP_LAYER_MODE_LUMA_DARKEN_ONLY, + GIMP_LAYER_MODE_MULTIPLY, + GIMP_LAYER_MODE_BURN, + GIMP_LAYER_MODE_LINEAR_BURN, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_OVERLAY, + GIMP_LAYER_MODE_SOFTLIGHT, + GIMP_LAYER_MODE_HARDLIGHT, + GIMP_LAYER_MODE_VIVID_LIGHT, + GIMP_LAYER_MODE_PIN_LIGHT, + GIMP_LAYER_MODE_LINEAR_LIGHT, + GIMP_LAYER_MODE_HARD_MIX, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_DIFFERENCE, + GIMP_LAYER_MODE_EXCLUSION, + GIMP_LAYER_MODE_SUBTRACT, + GIMP_LAYER_MODE_GRAIN_EXTRACT, + GIMP_LAYER_MODE_GRAIN_MERGE, + GIMP_LAYER_MODE_DIVIDE, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_HSV_HUE, + GIMP_LAYER_MODE_HSV_SATURATION, + GIMP_LAYER_MODE_HSL_COLOR, + GIMP_LAYER_MODE_HSV_VALUE, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_LCH_HUE, + GIMP_LAYER_MODE_LCH_CHROMA, + GIMP_LAYER_MODE_LCH_COLOR, + GIMP_LAYER_MODE_LCH_LIGHTNESS, + GIMP_LAYER_MODE_LUMINANCE +}; + +static const GimpLayerMode layer_mode_group_legacy[] = +{ + GIMP_LAYER_MODE_NORMAL_LEGACY, + GIMP_LAYER_MODE_DISSOLVE, + GIMP_LAYER_MODE_BEHIND_LEGACY, + GIMP_LAYER_MODE_COLOR_ERASE_LEGACY, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY, + GIMP_LAYER_MODE_SCREEN_LEGACY, + GIMP_LAYER_MODE_DODGE_LEGACY, + GIMP_LAYER_MODE_ADDITION_LEGACY, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY, + GIMP_LAYER_MODE_MULTIPLY_LEGACY, + GIMP_LAYER_MODE_BURN_LEGACY, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_OVERLAY, + GIMP_LAYER_MODE_SOFTLIGHT_LEGACY, + GIMP_LAYER_MODE_HARDLIGHT_LEGACY, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_DIFFERENCE_LEGACY, + GIMP_LAYER_MODE_SUBTRACT_LEGACY, + GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY, + GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY, + GIMP_LAYER_MODE_DIVIDE_LEGACY, + + GIMP_LAYER_MODE_SEPARATOR, + + GIMP_LAYER_MODE_HSV_HUE_LEGACY, + GIMP_LAYER_MODE_HSV_SATURATION_LEGACY, + GIMP_LAYER_MODE_HSL_COLOR_LEGACY, + GIMP_LAYER_MODE_HSV_VALUE_LEGACY +}; + +static const GimpLayerMode layer_mode_groups[][2] = +{ + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_NORMAL, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_NORMAL_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_DISSOLVE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_DISSOLVE + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_BEHIND, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_BEHIND_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_MULTIPLY, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_MULTIPLY_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_SCREEN, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_SCREEN_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_OVERLAY, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_DIFFERENCE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_DIFFERENCE_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_ADDITION, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_ADDITION_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_SUBTRACT, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_SUBTRACT_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_DARKEN_ONLY, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_DARKEN_ONLY_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_LIGHTEN_ONLY, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_LIGHTEN_ONLY_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_HSV_HUE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_HSV_HUE_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_HSV_SATURATION, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_HSV_SATURATION_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_HSL_COLOR, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_HSL_COLOR_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_HSV_VALUE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_HSV_VALUE_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_DIVIDE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_DIVIDE_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_DODGE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_DODGE_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_BURN, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_BURN_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_HARDLIGHT, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_HARDLIGHT_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_SOFTLIGHT, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_SOFTLIGHT_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_GRAIN_EXTRACT, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_GRAIN_EXTRACT_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_GRAIN_MERGE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_GRAIN_MERGE_LEGACY + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_COLOR_ERASE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = GIMP_LAYER_MODE_COLOR_ERASE_LEGACY, + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_VIVID_LIGHT, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_PIN_LIGHT, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_LINEAR_LIGHT, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_HARD_MIX, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_EXCLUSION, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_LINEAR_BURN, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_LUMA_DARKEN_ONLY, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_LUMA_LIGHTEN_ONLY, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_LUMINANCE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_ERASE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_MERGE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_SPLIT, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_PASS_THROUGH, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1, + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_REPLACE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + }, + + { [GIMP_LAYER_MODE_GROUP_DEFAULT] = GIMP_LAYER_MODE_ANTI_ERASE, + [GIMP_LAYER_MODE_GROUP_LEGACY ] = -1 + } +}; + + +/* public functions */ + +void +gimp_layer_modes_init (void) +{ + gint i; + + for (i = 0; i < G_N_ELEMENTS (layer_mode_infos); i++) + { + gimp_assert ((GimpLayerMode) i == layer_mode_infos[i].layer_mode); + } +} + +static const GimpLayerModeInfo * +gimp_layer_mode_info (GimpLayerMode 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 +gimp_layer_mode_is_legacy (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return FALSE; + + return (info->flags & GIMP_LAYER_MODE_FLAG_LEGACY) != 0; +} + +gboolean +gimp_layer_mode_is_blend_space_mutable (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return FALSE; + + return (info->flags & GIMP_LAYER_MODE_FLAG_BLEND_SPACE_IMMUTABLE) == 0; +} + +gboolean +gimp_layer_mode_is_composite_space_mutable (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return FALSE; + + return (info->flags & GIMP_LAYER_MODE_FLAG_COMPOSITE_SPACE_IMMUTABLE) == 0; +} + +gboolean +gimp_layer_mode_is_composite_mode_mutable (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return FALSE; + + return (info->flags & GIMP_LAYER_MODE_FLAG_COMPOSITE_MODE_IMMUTABLE) == 0; +} + +gboolean +gimp_layer_mode_is_subtractive (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return FALSE; + + return (info->flags & GIMP_LAYER_MODE_FLAG_SUBTRACTIVE) != 0; +} + +gboolean +gimp_layer_mode_is_alpha_only (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return FALSE; + + return (info->flags & GIMP_LAYER_MODE_FLAG_ALPHA_ONLY) != 0; +} + +gboolean +gimp_layer_mode_is_trivial (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return FALSE; + + return (info->flags & GIMP_LAYER_MODE_FLAG_TRIVIAL) != 0; +} + +GimpLayerColorSpace +gimp_layer_mode_get_blend_space (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return GIMP_LAYER_COLOR_SPACE_RGB_LINEAR; + + return info->blend_space; +} + +GimpLayerColorSpace +gimp_layer_mode_get_composite_space (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return GIMP_LAYER_COLOR_SPACE_RGB_LINEAR; + + return info->composite_space; +} + +GimpLayerCompositeMode +gimp_layer_mode_get_composite_mode (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return GIMP_LAYER_COMPOSITE_UNION; + + return info->composite_mode; +} + +GimpLayerCompositeMode +gimp_layer_mode_get_paint_composite_mode (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return GIMP_LAYER_COMPOSITE_UNION; + + return info->paint_composite_mode; +} + +const gchar * +gimp_layer_mode_get_operation (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return "gimp:layer-mode"; + + return info->op_name; +} + +GimpLayerModeFunc +gimp_layer_mode_get_function (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + static GimpLayerModeFunc funcs[G_N_ELEMENTS (layer_mode_infos)]; + + if (! info) + info = layer_mode_infos; + + mode = info - layer_mode_infos; + + if (! funcs[mode]) + { + GeglNode *node; + GeglOperation *operation; + + node = gegl_node_new_child (NULL, + "operation", info->op_name, + NULL); + + operation = gegl_node_get_gegl_operation (node); + + funcs[mode] = GIMP_OPERATION_LAYER_MODE_GET_CLASS (operation)->process; + + g_object_unref (node); + } + + return funcs[mode]; +} + +GimpLayerModeBlendFunc +gimp_layer_mode_get_blend_function (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return NULL; + + return info->blend_function; +} + +GimpLayerModeContext +gimp_layer_mode_get_context (GimpLayerMode mode) +{ + const GimpLayerModeInfo *info = gimp_layer_mode_info (mode); + + if (! info) + return 0; + + return info->context; +} + +GimpLayerMode * +gimp_layer_mode_get_context_array (GimpLayerMode mode, + GimpLayerModeContext context, + gint *n_modes) +{ + GimpLayerModeGroup group; + const GimpLayerMode *group_modes; + gint n_group_modes; + GimpLayerMode *array; + gint i; + + group = gimp_layer_mode_get_group (mode); + + group_modes = gimp_layer_mode_get_group_array (group, &n_group_modes); + + array = g_new0 (GimpLayerMode, n_group_modes); + *n_modes = 0; + + for (i = 0; i < n_group_modes; i++) + { + if (group_modes[i] != GIMP_LAYER_MODE_SEPARATOR && + (gimp_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 GimpLayerMode *modes, + gint n_modes, + GimpLayerMode mode) +{ + gint i; + + for (i = 0; i < n_modes; i++) + { + if (modes[i] == mode) + return TRUE; + } + + return FALSE; +} + +GimpLayerModeGroup +gimp_layer_mode_get_group (GimpLayerMode mode) +{ + if (is_mode_in_array (layer_mode_group_default, + G_N_ELEMENTS (layer_mode_group_default), mode)) + { + return GIMP_LAYER_MODE_GROUP_DEFAULT; + } + else if (is_mode_in_array (layer_mode_group_legacy, + G_N_ELEMENTS (layer_mode_group_legacy), mode)) + { + return GIMP_LAYER_MODE_GROUP_LEGACY; + } + + return GIMP_LAYER_MODE_GROUP_DEFAULT; +} + +const GimpLayerMode * +gimp_layer_mode_get_group_array (GimpLayerModeGroup group, + gint *n_modes) +{ + g_return_val_if_fail (n_modes != NULL, NULL); + + switch (group) + { + case GIMP_LAYER_MODE_GROUP_DEFAULT: + *n_modes = G_N_ELEMENTS (layer_mode_group_default); + return layer_mode_group_default; + + case GIMP_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 +gimp_layer_mode_get_for_group (GimpLayerMode old_mode, + GimpLayerModeGroup new_group, + GimpLayerMode *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 * +gimp_layer_mode_get_format (GimpLayerMode mode, + GimpLayerColorSpace blend_space, + GimpLayerColorSpace composite_space, + GimpLayerCompositeMode composite_mode, + const Babl *preferred_format) +{ + GimpLayerCompositeRegion composite_region; + + /* for now, all modes perform i/o in the composite space. */ + (void) mode; + (void) blend_space; + + if (composite_space == GIMP_LAYER_COLOR_SPACE_AUTO) + composite_space = gimp_layer_mode_get_composite_space (mode); + + if (composite_mode == GIMP_LAYER_COMPOSITE_AUTO) + composite_mode = gimp_layer_mode_get_composite_mode (mode); + + composite_region = gimp_layer_mode_get_included_region (mode, composite_mode); + + if (gimp_layer_mode_is_alpha_only (mode)) + { + if (composite_region != GIMP_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 = GIMP_LAYER_COLOR_SPACE_AUTO; + } + } + else if (gimp_layer_mode_is_trivial (mode)) + { + if (! (composite_region & GIMP_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 = GIMP_LAYER_COLOR_SPACE_AUTO; + } + } + + switch (composite_space) + { + case GIMP_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 || gimp_babl_format_get_linear (preferred_format)) + return babl_format ("RGBA float"); + else + return babl_format ("R'G'B'A float"); + + case GIMP_LAYER_COLOR_SPACE_RGB_LINEAR: + return babl_format ("RGBA float"); + + case GIMP_LAYER_COLOR_SPACE_RGB_PERCEPTUAL: + return babl_format ("R'G'B'A float"); + + case GIMP_LAYER_COLOR_SPACE_LAB: + return babl_format ("CIE Lab alpha float"); + } + + g_return_val_if_reached (babl_format ("RGBA float")); +} + +GimpLayerCompositeRegion +gimp_layer_mode_get_included_region (GimpLayerMode mode, + GimpLayerCompositeMode composite_mode) +{ + if (composite_mode == GIMP_LAYER_COMPOSITE_AUTO) + composite_mode = gimp_layer_mode_get_composite_mode (mode); + + switch (composite_mode) + { + case GIMP_LAYER_COMPOSITE_UNION: + return GIMP_LAYER_COMPOSITE_REGION_UNION; + + case GIMP_LAYER_COMPOSITE_CLIP_TO_BACKDROP: + return GIMP_LAYER_COMPOSITE_REGION_DESTINATION; + + case GIMP_LAYER_COMPOSITE_CLIP_TO_LAYER: + return GIMP_LAYER_COMPOSITE_REGION_SOURCE; + + case GIMP_LAYER_COMPOSITE_INTERSECTION: + return GIMP_LAYER_COMPOSITE_REGION_INTERSECTION; + + default: + g_return_val_if_reached (GIMP_LAYER_COMPOSITE_REGION_INTERSECTION); + } +} |