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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
*
* GIMP Plug-in for Windows Icon files.
* Copyright (C) 2002 Christian Kreibich <christian@whoop.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/>.
*/
#ifndef __ICO_H__
#define __ICO_H__
#ifdef ICO_DBG
#define D(x) \
{ \
printf("ICO plugin: "); \
printf x; \
}
#else
#define D(x)
#endif
#define PLUG_IN_BINARY "file-ico"
#define PLUG_IN_ROLE "gimp-file-ico"
#define ICO_PNG_MAGIC 0x474e5089
#define ICO_ALPHA_THRESHOLD 127
#define ICO_MAXBUF 4096
typedef struct _IcoFileHeader
{
guint16 reserved;
guint16 resource_type;
guint16 icon_count;
} IcoFileHeader;
typedef struct _IcoFileEntry
{
guint8 width; /* Width of icon in pixels */
guint8 height; /* Height of icon in pixels */
guint8 num_colors; /* Number of colors of paletted image */
guint8 reserved; /* Must be 0 */
guint16 planes; /* Must be 1 */
guint16 bpp; /* 1, 4, 8, 24 or 32 bits per pixel */
guint32 size; /* Size of icon (including data header) */
guint32 offset; /* Absolute offset of data in a file */
} IcoFileEntry;
typedef struct _IcoFileDataHeader
{
guint32 header_size; /* 40 bytes */
guint32 width; /* Width of image in pixels */
guint32 height; /* Height of image in pixels */
guint16 planes; /* Must be 1 */
guint16 bpp;
guint32 compression; /* Not used for icons */
guint32 image_size; /* Size of image (without this header) */
guint32 x_res;
guint32 y_res;
guint32 used_clrs;
guint32 important_clrs;
} IcoFileDataHeader;
typedef struct _IcoLoadInfo
{
guint width;
guint height;
gint bpp;
gint offset;
gint size;
} IcoLoadInfo;
typedef struct _IcoSaveInfo
{
gint *depths;
gint *default_depths;
gboolean *compress;
gint *layers;
gint num_icons;
} IcoSaveInfo;
/* Miscellaneous helper functions below: */
gint ico_rowstride (gint width,
gint bpp);
/* Allocates a 32-bit padded bitmap for various color depths.
Returns the allocated array directly, and the length of the
array in the len pointer */
guint8 * ico_alloc_map (gint width,
gint height,
gint bpp,
gint *len);
#endif /* __ICO_H__ */
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