103 lines
3.8 KiB
C
103 lines
3.8 KiB
C
/*
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* Copyright (c) 2007, Takahide Matsutsuka.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* 3. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: libconio_arch.c,v 1.1 2007/09/09 12:21:54 matsutsuka Exp $
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*
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*/
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/*
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* \file
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* Arcitecture-depend libconio module, which supposes
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* the machine has character VRAM and optional attribute VRAM
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* on memory.
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* \author
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* Takahide Matsutsuka <markn@markn.org>
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*/
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#include "contiki.h"
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#include "sys/log.h"
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#include "libconio.h"
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#include "libconio_arch.h"
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/*---------------------------------------------------------------------------*/
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static void scroll() {
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unsigned char y;
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u16_t src, dst;
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for (y = 0; y < LIBCONIO_CONF_SCREEN_HEIGHT - 1; y++) {
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dst = LIBCONIO_VRAM_OFFSET(0, y);
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src = LIBCONIO_VRAM_OFFSET(0, y + 1);
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memcpy(LIBCONIO_VRAM_CHAR + dst,
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LIBCONIO_VRAM_CHAR + src,
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LIBCONIO_CONF_SCREEN_WIDTH);
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#ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED
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memcpy(LIBCONIO_VRAM_ATTR + dst,
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LIBCONIO_VRAM_ATTR + src,
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LIBCONIO_CONF_SCREEN_WIDTH);
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#endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */
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}
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dst = LIBCONIO_VRAM_OFFSET(0, LIBCONIO_CONF_SCREEN_HEIGHT - 1);
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memset(LIBCONIO_VRAM_CHAR + dst, ' ',
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LIBCONIO_CONF_SCREEN_WIDTH);
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#ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED
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memset(LIBCONIO_VRAM_ATTR + dst, LIBCONIO_COLOR_NORMAL,
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LIBCONIO_CONF_SCREEN_WIDTH);
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#endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */
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gotoxy(0, LIBCONIO_CONF_SCREEN_HEIGHT - 1);
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}
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/*---------------------------------------------------------------------------*/
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/* make sure that the position is inside screen */
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static void adjust(unsigned char *x, unsigned char *y) {
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if (*x > LIBCONIO_CONF_SCREEN_WIDTH) {
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*y += *x / LIBCONIO_CONF_SCREEN_WIDTH;
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*x = *x % LIBCONIO_CONF_SCREEN_WIDTH;
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gotoxy(*x, *y);
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}
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}
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/*---------------------------------------------------------------------------*/
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void ctk_arch_draw_char(char c,
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unsigned char xpos,
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unsigned char ypos,
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unsigned char reversed,
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unsigned char color) {
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u16_t off;
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adjust(&xpos, &ypos);
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off = LIBCONIO_VRAM_OFFSET(xpos, ypos);
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if (off >= LIBCONIO_VRAM_OFFSET_MAX) {
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scroll();
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off = LIBCONIO_VRAM_OFFSET(0, LIBCONIO_CONF_SCREEN_HEIGHT - 1);
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}
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*(char *)(LIBCONIO_VRAM_CHAR + off) = c;
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#ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED
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*(char *)(LIBCONIO_VRAM_ATTR + off) = reversed ?
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LIBCONIO_COLOR_REVERSED : LIBCONIO_COLOR_NORMAL;
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#endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */
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}
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/*---------------------------------------------------------------------------*/
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