mirror of https://github.com/GNOME/gimp.git
116 lines
3.7 KiB
C
116 lines
3.7 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimp-gegl-utils.h
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* Copyright (C) 2007 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <gegl.h>
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#include "gegl-types.h"
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#include "gimp-gegl-utils.h"
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/**
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* gimp_bpp_to_babl_format:
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* @bpp: bytes per pixel
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* @linear: whether the pixels are linear or gamma-corrected.
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*
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* Return the Babl format to use for a given number of bytes per pixel.
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* This function assumes that the data is 8bit.
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*
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* Return value: the Babl format to use
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**/
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const Babl *
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gimp_bpp_to_babl_format (guint bpp,
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gboolean linear)
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{
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g_return_val_if_fail (bpp > 0 && bpp <= 4, NULL);
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if (linear)
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{
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switch (bpp)
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{
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case 1:
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return babl_format ("Y u8");
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case 2:
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return babl_format ("YA u8");
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case 3:
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return babl_format ("RGB u8");
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case 4:
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return babl_format ("RGBA u8");
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}
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}
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else
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{
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switch (bpp)
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{
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case 1:
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return babl_format ("Y' u8");
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case 2:
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return babl_format ("Y'A u8");
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case 3:
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return babl_format ("R'G'B' u8");
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case 4:
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return babl_format ("R'G'B'A u8");
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}
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}
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return NULL;
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}
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const gchar *
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gimp_layer_mode_to_gegl_operation (GimpLayerModeEffects mode)
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{
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switch (mode)
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{
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case GIMP_NORMAL_MODE: return "gegl:normal";
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case GIMP_DISSOLVE_MODE: return "gimp-dissolve-mode";
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case GIMP_BEHIND_MODE: return "gimp-behind-mode";
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case GIMP_MULTIPLY_MODE: return "gimp-multiply-mode";
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case GIMP_SCREEN_MODE: return "gimp-screen-mode";
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case GIMP_OVERLAY_MODE: return "gimp-overlay-mode";
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case GIMP_DIFFERENCE_MODE: return "gimp-difference-mode";
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case GIMP_ADDITION_MODE: return "gimp-addition-mode";
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case GIMP_SUBTRACT_MODE: return "gimp-subtract-mode";
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case GIMP_DARKEN_ONLY_MODE: return "gimp-darken-mode";
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case GIMP_LIGHTEN_ONLY_MODE: return "gimp-lighten-mode";
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case GIMP_HUE_MODE: return "gimp-hue-mode";
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case GIMP_SATURATION_MODE: return "gimp-saturation-mode";
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case GIMP_COLOR_MODE: return "gimp-color-mode";
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case GIMP_VALUE_MODE: return "gimp-value-mode";
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case GIMP_DIVIDE_MODE: return "gimp-divide-mode";
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case GIMP_DODGE_MODE: return "gimp-dodge-mode";
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case GIMP_BURN_MODE: return "gimp-burn-mode";
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case GIMP_HARDLIGHT_MODE: return "gimp-hardlight-mode";
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case GIMP_SOFTLIGHT_MODE: return "gimp-softlight-mode";
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case GIMP_GRAIN_EXTRACT_MODE: return "gimp-grain-extract-mode";
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case GIMP_GRAIN_MERGE_MODE: return "gimp-grain-merge-mode";
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case GIMP_COLOR_ERASE_MODE: return "gimp-color-erase-mode";
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case GIMP_ERASE_MODE: return "gimp-erase-mode";
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case GIMP_REPLACE_MODE: return "gimp-replace-mode";
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case GIMP_ANTI_ERASE_MODE: return "gimp-anti-erase-mode";
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default:
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break;
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}
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return "gegl:normal";
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}
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