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-rw-r--r--app/operations/layer-modes/gimp-layer-modes.c1522
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);
+ }
+}