colors.c
1 /* 2 * 3 * Copyright (C) 2007 Uwe Hermann <uwe@hermann-uwe.de> 4 * Copyright (C) 2008 Advanced Micro Devices, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* Color pair management */ 31 32 #include "local.h" 33 34 unsigned char color_pairs[256] = { 35 [0] = 0x07, 36 }; 37 38 int start_color(void) 39 { 40 return 0; 41 } 42 43 int init_pair(short index, short fg, short bg) 44 { 45 if (index == 0 || index > 255) 46 return ERR; 47 48 color_pairs[index] = ((bg & 0xF) << 4) | (fg & 0xF); 49 return 0; 50 } 51 52 int pair_content(short index, short *fg, short *bg) 53 { 54 if (index < 0 || index > 255) 55 return ERR; 56 57 *bg = (color_pairs[index] >> 4) & 0xF; 58 *fg = color_pairs[index] & 0xF; 59 60 return 0; 61 }