lemon-project-template-glpk

annotate deps/glpk/src/glprgr.c @ 9:33de93886c88

find changesets by author, revision, files, or words in the commit message
Import GLPK 4.47
author Alpar Juttner <alpar@cs.elte.hu>
date Sun, 06 Nov 2011 20:59:10 +0100
parents
children
rev   line source
alpar@9 1 /* glprgr.c */
alpar@9 2
alpar@9 3 /***********************************************************************
alpar@9 4 * This code is part of GLPK (GNU Linear Programming Kit).
alpar@9 5 *
alpar@9 6 * Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
alpar@9 7 * 2009, 2010, 2011 Andrew Makhorin, Department for Applied Informatics,
alpar@9 8 * Moscow Aviation Institute, Moscow, Russia. All rights reserved.
alpar@9 9 * E-mail: <mao@gnu.org>.
alpar@9 10 *
alpar@9 11 * GLPK is free software: you can redistribute it and/or modify it
alpar@9 12 * under the terms of the GNU General Public License as published by
alpar@9 13 * the Free Software Foundation, either version 3 of the License, or
alpar@9 14 * (at your option) any later version.
alpar@9 15 *
alpar@9 16 * GLPK is distributed in the hope that it will be useful, but WITHOUT
alpar@9 17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
alpar@9 18 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
alpar@9 19 * License for more details.
alpar@9 20 *
alpar@9 21 * You should have received a copy of the GNU General Public License
alpar@9 22 * along with GLPK. If not, see <http://www.gnu.org/licenses/>.
alpar@9 23 ***********************************************************************/
alpar@9 24
alpar@9 25 #define _GLPSTD_ERRNO
alpar@9 26 #define _GLPSTD_STDIO
alpar@9 27 #include "glpenv.h"
alpar@9 28 #include "glprgr.h"
alpar@9 29 #define xfault xerror
alpar@9 30
alpar@9 31 /***********************************************************************
alpar@9 32 * NAME
alpar@9 33 *
alpar@9 34 * rgr_write_bmp16 - write 16-color raster image in BMP file format
alpar@9 35 *
alpar@9 36 * SYNOPSIS
alpar@9 37 *
alpar@9 38 * #include "glprgr.h"
alpar@9 39 * int rgr_write_bmp16(const char *fname, int m, int n, const char
alpar@9 40 * map[]);
alpar@9 41 *
alpar@9 42 * DESCRIPTION
alpar@9 43 *
alpar@9 44 * The routine rgr_write_bmp16 writes 16-color raster image in
alpar@9 45 * uncompressed BMP file format (Windows bitmap) to a binary file whose
alpar@9 46 * name is specified by the character string fname.
alpar@9 47 *
alpar@9 48 * The parameters m and n specify, respectively, the number of rows and
alpar@9 49 * the numbers of columns (i.e. height and width) of the raster image.
alpar@9 50 *
alpar@9 51 * The character array map has m*n elements. Elements map[0, ..., n-1]
alpar@9 52 * correspond to the first (top) scanline, elements map[n, ..., 2*n-1]
alpar@9 53 * correspond to the second scanline, etc.
alpar@9 54 *
alpar@9 55 * Each element of the array map specifies a color of the corresponding
alpar@9 56 * pixel as 8-bit binary number XXXXIRGB, where four high-order bits (X)
alpar@9 57 * are ignored, I is high intensity bit, R is red color bit, G is green
alpar@9 58 * color bit, and B is blue color bit. Thus, all 16 possible colors are
alpar@9 59 * coded as following hexadecimal numbers:
alpar@9 60 *
alpar@9 61 * 0x00 = black 0x08 = dark gray
alpar@9 62 * 0x01 = blue 0x09 = bright blue
alpar@9 63 * 0x02 = green 0x0A = bright green
alpar@9 64 * 0x03 = cyan 0x0B = bright cyan
alpar@9 65 * 0x04 = red 0x0C = bright red
alpar@9 66 * 0x05 = magenta 0x0D = bright magenta
alpar@9 67 * 0x06 = brown 0x0E = yellow
alpar@9 68 * 0x07 = light gray 0x0F = white
alpar@9 69 *
alpar@9 70 * RETURNS
alpar@9 71 *
alpar@9 72 * If no error occured, the routine returns zero; otherwise, it prints
alpar@9 73 * an appropriate error message and returns non-zero. */
alpar@9 74
alpar@9 75 static void put_byte(FILE *fp, int c)
alpar@9 76 { fputc(c, fp);
alpar@9 77 return;
alpar@9 78 }
alpar@9 79
alpar@9 80 static void put_word(FILE *fp, int w)
alpar@9 81 { /* big endian */
alpar@9 82 put_byte(fp, w);
alpar@9 83 put_byte(fp, w >> 8);
alpar@9 84 return;
alpar@9 85 }
alpar@9 86
alpar@9 87 static void put_dword(FILE *fp, int d)
alpar@9 88 { /* big endian */
alpar@9 89 put_word(fp, d);
alpar@9 90 put_word(fp, d >> 16);
alpar@9 91 return;
alpar@9 92 }
alpar@9 93
alpar@9 94 int rgr_write_bmp16(const char *fname, int m, int n, const char map[])
alpar@9 95 { FILE *fp;
alpar@9 96 int offset, bmsize, i, j, b, ret = 0;
alpar@9 97 if (!(1 <= m && m <= 32767))
alpar@9 98 xfault("rgr_write_bmp16: m = %d; invalid height\n", m);
alpar@9 99 if (!(1 <= n && n <= 32767))
alpar@9 100 xfault("rgr_write_bmp16: n = %d; invalid width\n", n);
alpar@9 101 fp = fopen(fname, "wb");
alpar@9 102 if (fp == NULL)
alpar@9 103 { xprintf("rgr_write_bmp16: unable to create `%s' - %s\n",
alpar@9 104 fname, strerror(errno));
alpar@9 105 ret = 1;
alpar@9 106 goto fini;
alpar@9 107 }
alpar@9 108 offset = 14 + 40 + 16 * 4;
alpar@9 109 bmsize = (4 * n + 31) / 32;
alpar@9 110 /* struct BMPFILEHEADER (14 bytes) */
alpar@9 111 /* UINT bfType */ put_byte(fp, 'B'), put_byte(fp, 'M');
alpar@9 112 /* DWORD bfSize */ put_dword(fp, offset + bmsize * 4);
alpar@9 113 /* UINT bfReserved1 */ put_word(fp, 0);
alpar@9 114 /* UNIT bfReserved2 */ put_word(fp, 0);
alpar@9 115 /* DWORD bfOffBits */ put_dword(fp, offset);
alpar@9 116 /* struct BMPINFOHEADER (40 bytes) */
alpar@9 117 /* DWORD biSize */ put_dword(fp, 40);
alpar@9 118 /* LONG biWidth */ put_dword(fp, n);
alpar@9 119 /* LONG biHeight */ put_dword(fp, m);
alpar@9 120 /* WORD biPlanes */ put_word(fp, 1);
alpar@9 121 /* WORD biBitCount */ put_word(fp, 4);
alpar@9 122 /* DWORD biCompression */ put_dword(fp, 0 /* BI_RGB */);
alpar@9 123 /* DWORD biSizeImage */ put_dword(fp, 0);
alpar@9 124 /* LONG biXPelsPerMeter */ put_dword(fp, 2953 /* 75 dpi */);
alpar@9 125 /* LONG biYPelsPerMeter */ put_dword(fp, 2953 /* 75 dpi */);
alpar@9 126 /* DWORD biClrUsed */ put_dword(fp, 0);
alpar@9 127 /* DWORD biClrImportant */ put_dword(fp, 0);
alpar@9 128 /* struct RGBQUAD (16 * 4 = 64 bytes) */
alpar@9 129 /* CGA-compatible colors: */
alpar@9 130 /* 0x00 = black */ put_dword(fp, 0x000000);
alpar@9 131 /* 0x01 = blue */ put_dword(fp, 0x000080);
alpar@9 132 /* 0x02 = green */ put_dword(fp, 0x008000);
alpar@9 133 /* 0x03 = cyan */ put_dword(fp, 0x008080);
alpar@9 134 /* 0x04 = red */ put_dword(fp, 0x800000);
alpar@9 135 /* 0x05 = magenta */ put_dword(fp, 0x800080);
alpar@9 136 /* 0x06 = brown */ put_dword(fp, 0x808000);
alpar@9 137 /* 0x07 = light gray */ put_dword(fp, 0xC0C0C0);
alpar@9 138 /* 0x08 = dark gray */ put_dword(fp, 0x808080);
alpar@9 139 /* 0x09 = bright blue */ put_dword(fp, 0x0000FF);
alpar@9 140 /* 0x0A = bright green */ put_dword(fp, 0x00FF00);
alpar@9 141 /* 0x0B = bright cyan */ put_dword(fp, 0x00FFFF);
alpar@9 142 /* 0x0C = bright red */ put_dword(fp, 0xFF0000);
alpar@9 143 /* 0x0D = bright magenta */ put_dword(fp, 0xFF00FF);
alpar@9 144 /* 0x0E = yellow */ put_dword(fp, 0xFFFF00);
alpar@9 145 /* 0x0F = white */ put_dword(fp, 0xFFFFFF);
alpar@9 146 /* pixel data bits */
alpar@9 147 b = 0;
alpar@9 148 for (i = m - 1; i >= 0; i--)
alpar@9 149 { for (j = 0; j < ((n + 7) / 8) * 8; j++)
alpar@9 150 { b <<= 4;
alpar@9 151 b |= (j < n ? map[i * n + j] & 15 : 0);
alpar@9 152 if (j & 1) put_byte(fp, b);
alpar@9 153 }
alpar@9 154 }
alpar@9 155 fflush(fp);
alpar@9 156 if (ferror(fp))
alpar@9 157 { xprintf("rgr_write_bmp16: write error on `%s' - %s\n",
alpar@9 158 fname, strerror(errno));
alpar@9 159 ret = 1;
alpar@9 160 }
alpar@9 161 fini: if (fp != NULL) fclose(fp);
alpar@9 162 return ret;
alpar@9 163 }
alpar@9 164
alpar@9 165 /* eof */