1 /*-------------------------------------------------------------------- 2 * 3 * Copyright (c) 1991-2021 by the GMT Team (https://www.generic-mapping-tools.org/team.html) 4 * See LICENSE.TXT file for copying and redistribution conditions. 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU Lesser General Public License as published by 8 * the Free Software Foundation; version 3 or any later version. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU Lesser General Public License for more details. 14 * 15 * Contact info: www.generic-mapping-tools.org 16 *--------------------------------------------------------------------*/ 17 18 /* 19 * Include file for gmt_customio functions. 20 * 21 * Author: Paul Wessel 22 * Date: 1-JAN-2010 23 * Version: 6 API 24 * 25 */ 26 27 /*! 28 * \file gmt_customio.h 29 * \brief Include file for gmt_customio functions. 30 */ 31 32 #ifndef GMT_CUSTOMIO_H 33 #define GMT_CUSTOMIO_H 34 35 /*! Definition for Sun rasterfiles [THESE MUST REMAIN int32_t] */ 36 struct rasterfile { 37 int32_t magic; /* magic number */ 38 int32_t width; /* width (pixels) of image */ 39 int32_t height; /* height (pixels) of image */ 40 int32_t depth; /* depth (1, 8, or 24 bits) of pixel */ 41 int32_t length; /* length (bytes) of image */ 42 int32_t type; /* type of file; see RT_* below */ 43 int32_t maptype; /* type of colormap; see RMT_* below */ 44 int32_t maplength; /* length (bytes) of following map */ 45 /* color map follows for maplength bytes, followed by image */ 46 }; 47 48 #define RAS_MAGIC 0x59a66a95 /* Magic number for Sun rasterfile */ 49 #define EPS_MAGIC 0x25215053 /* Magic number for EPS file */ 50 #define RT_OLD 0 /* Old-style, unencoded Sun rasterfile */ 51 #define RT_STANDARD 1 /* Standard, unencoded Sun rasterfile */ 52 #define RT_BYTE_ENCODED 2 /* Run-length-encoded Sun rasterfile */ 53 #define RT_FORMAT_RGB 3 /* [X]RGB instead of [X]BGR Sun rasterfile */ 54 #define RMT_NONE 0 /* maplength is expected to be 0 */ 55 #define RMT_EQUAL_RGB 1 /* red[maplength/3], green[], blue[] follow */ 56 57 EXTERN_MSC char **gmt_grdformats_sorted (struct GMT_CTRL *Ctrl); 58 59 #endif /* GMT_CUSTOMIO_H */ 60