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89c359ce47
GLib has a specific type for byte arrays: `GBytes` (and it's underlying GType `G_TYPE_BYTES`). By using this type, we can avoid having a `GimpUint8Array` which is a bit cumbersome to use for both the C API, as well as bindings. By using `GBytes`, we allow other languages to pass on byte arrays as they are used to, while the bindings will make sure to do the right thing. In the end, it makes the API a little bit simpler for everyone, and reduces confusion for people who are used to working with byte arrays in other C/GLib based code (and not having 2 different types to denote the same thing). Related: https://gitlab.gnome.org/GNOME/gimp/-/issues/5919
252 lines
8.5 KiB
C
252 lines
8.5 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-2003 Peter Mattis and Spencer Kimball
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*
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* gimpimageconvert_pdb.c
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <https://www.gnu.org/licenses/>.
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*/
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/* NOTE: This file is auto-generated by pdbgen.pl */
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#include "config.h"
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#include "stamp-pdbgen.h"
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#include "gimp.h"
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/**
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* SECTION: gimpimageconvert
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* @title: gimpimageconvert
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* @short_description: Conversions between RGB, indexed, and grayscale modes.
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*
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* Conversions between RGB, indexed, and grayscale modes.
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**/
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/**
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* gimp_image_convert_rgb:
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* @image: The image.
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*
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* Convert specified image to RGB color
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*
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* This procedure converts the specified image to RGB color. This
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* process requires an image in Grayscale or Indexed color mode. No
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* image content is lost in this process aside from the colormap for an
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* indexed image.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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gimp_image_convert_rgb (GimpImage *image)
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{
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GimpValueArray *args;
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GimpValueArray *return_vals;
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gboolean success = TRUE;
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args = gimp_value_array_new_from_types (NULL,
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GIMP_TYPE_IMAGE, image,
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G_TYPE_NONE);
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return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
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"gimp-image-convert-rgb",
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args);
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gimp_value_array_unref (args);
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success = GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS;
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gimp_value_array_unref (return_vals);
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return success;
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}
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/**
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* gimp_image_convert_grayscale:
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* @image: The image.
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*
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* Convert specified image to grayscale
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*
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* This procedure converts the specified image to grayscale. This
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* process requires an image in RGB or Indexed color mode.
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*
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* Returns: TRUE on success.
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**/
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gboolean
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gimp_image_convert_grayscale (GimpImage *image)
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{
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GimpValueArray *args;
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GimpValueArray *return_vals;
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gboolean success = TRUE;
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args = gimp_value_array_new_from_types (NULL,
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GIMP_TYPE_IMAGE, image,
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G_TYPE_NONE);
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return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
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"gimp-image-convert-grayscale",
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args);
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gimp_value_array_unref (args);
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success = GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS;
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gimp_value_array_unref (return_vals);
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return success;
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}
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/**
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* gimp_image_convert_indexed:
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* @image: The image.
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* @dither_type: The dither type to use.
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* @palette_type: The type of palette to use.
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* @num_cols: The number of colors to quantize to, ignored unless (palette_type == GIMP_CONVERT_PALETTE_GENERATE).
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* @alpha_dither: Dither transparency to fake partial opacity.
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* @remove_unused: Remove unused or duplicate color entries from final palette, ignored if (palette_type == GIMP_CONVERT_PALETTE_GENERATE).
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* @palette: The name of the custom palette to use, ignored unless (palette_type == GIMP_CONVERT_PALETTE_CUSTOM).
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*
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* Convert specified image to and Indexed image
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*
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* This procedure converts the specified image to 'indexed' color. This
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* process requires an image in RGB or Grayscale mode. The
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* 'palette_type' specifies what kind of palette to use, A type of '0'
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* means to use an optimal palette of 'num_cols' generated from the
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* colors in the image. A type of '1' means to re-use the previous
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* palette (not currently implemented). A type of '2' means to use the
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* so-called WWW-optimized palette. Type '3' means to use only black
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* and white colors. A type of '4' means to use a palette from the gimp
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* palettes directories. The 'dither type' specifies what kind of
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* dithering to use. '0' means no dithering, '1' means standard
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* Floyd-Steinberg error diffusion, '2' means Floyd-Steinberg error
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* diffusion with reduced bleeding, '3' means dithering based on pixel
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* location ('Fixed' dithering).
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*
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* Returns: TRUE on success.
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**/
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gboolean
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gimp_image_convert_indexed (GimpImage *image,
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GimpConvertDitherType dither_type,
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GimpConvertPaletteType palette_type,
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gint num_cols,
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gboolean alpha_dither,
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gboolean remove_unused,
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const gchar *palette)
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{
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GimpValueArray *args;
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GimpValueArray *return_vals;
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gboolean success = TRUE;
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args = gimp_value_array_new_from_types (NULL,
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GIMP_TYPE_IMAGE, image,
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GIMP_TYPE_CONVERT_DITHER_TYPE, dither_type,
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GIMP_TYPE_CONVERT_PALETTE_TYPE, palette_type,
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G_TYPE_INT, num_cols,
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G_TYPE_BOOLEAN, alpha_dither,
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G_TYPE_BOOLEAN, remove_unused,
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G_TYPE_STRING, palette,
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G_TYPE_NONE);
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return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
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"gimp-image-convert-indexed",
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args);
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gimp_value_array_unref (args);
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success = GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS;
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gimp_value_array_unref (return_vals);
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return success;
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}
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/**
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* gimp_image_convert_set_dither_matrix:
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* @width: Width of the matrix (0 to reset to default matrix).
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* @height: Height of the matrix (0 to reset to default matrix).
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* @matrix: The matrix -- all values must be >= 1.
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*
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* Set dither matrix for conversion to indexed
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*
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* This procedure sets the dither matrix used when converting images to
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* INDEXED mode with positional dithering.
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*
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* Returns: TRUE on success.
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*
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* Since: 2.4
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**/
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gboolean
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gimp_image_convert_set_dither_matrix (gint width,
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gint height,
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GBytes *matrix)
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{
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GimpValueArray *args;
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GimpValueArray *return_vals;
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gboolean success = TRUE;
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args = gimp_value_array_new_from_types (NULL,
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G_TYPE_INT, width,
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G_TYPE_INT, height,
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G_TYPE_BYTES, matrix,
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G_TYPE_NONE);
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return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
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"gimp-image-convert-set-dither-matrix",
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args);
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gimp_value_array_unref (args);
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success = GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS;
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gimp_value_array_unref (return_vals);
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return success;
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}
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/**
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* gimp_image_convert_precision:
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* @image: The image.
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* @precision: The new precision.
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*
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* Convert the image to the specified precision
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*
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* This procedure converts the image to the specified precision. Note
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* that indexed images cannot be converted and are always in
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* GIMP_PRECISION_U8.
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*
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* Returns: TRUE on success.
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*
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* Since: 2.10
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**/
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gboolean
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gimp_image_convert_precision (GimpImage *image,
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GimpPrecision precision)
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{
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GimpValueArray *args;
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GimpValueArray *return_vals;
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gboolean success = TRUE;
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args = gimp_value_array_new_from_types (NULL,
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GIMP_TYPE_IMAGE, image,
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GIMP_TYPE_PRECISION, precision,
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G_TYPE_NONE);
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return_vals = gimp_pdb_run_procedure_array (gimp_get_pdb (),
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"gimp-image-convert-precision",
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args);
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gimp_value_array_unref (args);
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success = GIMP_VALUES_GET_ENUM (return_vals, 0) == GIMP_PDB_SUCCESS;
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gimp_value_array_unref (return_vals);
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return success;
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}
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