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VRAM based default implementation of libconio_arch.

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matsutsuka 2007-09-09 12:21:54 +00:00
parent f9a01d6282
commit 91a57c89ba
2 changed files with 190 additions and 0 deletions
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102
cpu/z80/lib/libconio_arch.c Normal file
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/*
* Copyright (c) 2007, Takahide Matsutsuka.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: libconio_arch.c,v 1.1 2007/09/09 12:21:54 matsutsuka Exp $
*
*/
/*
* \file
* Arcitecture-depend libconio module, which supposes
* the machine has character VRAM and optional attribute VRAM
* on memory.
* \author
* Takahide Matsutsuka <markn@markn.org>
*/
#include "contiki.h"
#include "sys/log.h"
#include "libconio.h"
#include "libconio_arch.h"
/*---------------------------------------------------------------------------*/
static void scroll() {
unsigned char y;
u16_t src, dst;
for (y = 0; y < LIBCONIO_CONF_SCREEN_HEIGHT - 1; y++) {
dst = LIBCONIO_VRAM_OFFSET(0, y);
src = LIBCONIO_VRAM_OFFSET(0, y + 1);
memcpy(LIBCONIO_VRAM_CHAR + dst,
LIBCONIO_VRAM_CHAR + src,
LIBCONIO_CONF_SCREEN_WIDTH);
#ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED
memcpy(LIBCONIO_VRAM_ATTR + dst,
LIBCONIO_VRAM_ATTR + src,
LIBCONIO_CONF_SCREEN_WIDTH);
#endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */
}
dst = LIBCONIO_VRAM_OFFSET(0, LIBCONIO_CONF_SCREEN_HEIGHT - 1);
memset(LIBCONIO_VRAM_CHAR + dst, ' ',
LIBCONIO_CONF_SCREEN_WIDTH);
#ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED
memset(LIBCONIO_VRAM_ATTR + dst, LIBCONIO_COLOR_NORMAL,
LIBCONIO_CONF_SCREEN_WIDTH);
#endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */
gotoxy(0, LIBCONIO_CONF_SCREEN_HEIGHT - 1);
}
/*---------------------------------------------------------------------------*/
/* make sure that the position is inside screen */
static void adjust(unsigned char *x, unsigned char *y) {
if (*x > LIBCONIO_CONF_SCREEN_WIDTH) {
*y += *x / LIBCONIO_CONF_SCREEN_WIDTH;
*x = *x % LIBCONIO_CONF_SCREEN_WIDTH;
gotoxy(*x, *y);
}
}
/*---------------------------------------------------------------------------*/
void ctk_arch_draw_char(char c,
unsigned char xpos,
unsigned char ypos,
unsigned char reversed,
unsigned char color) {
u16_t off;
adjust(&xpos, &ypos);
off = LIBCONIO_VRAM_OFFSET(xpos, ypos);
if (off >= LIBCONIO_VRAM_OFFSET_MAX) {
scroll();
off = LIBCONIO_VRAM_OFFSET(0, LIBCONIO_CONF_SCREEN_HEIGHT - 1);
}
*(char *)(LIBCONIO_VRAM_CHAR + off) = c;
#ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED
*(char *)(LIBCONIO_VRAM_ATTR + off) = reversed ?
LIBCONIO_COLOR_REVERSED : LIBCONIO_COLOR_NORMAL;
#endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */
}
/*---------------------------------------------------------------------------*/

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cpu/z80/lib/libconio_arch.h Normal file
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/*
* Copyright (c) 2007, Takahide Matsutsuka.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: libconio_arch.h,v 1.1 2007/09/09 12:21:54 matsutsuka Exp $
*
*/
/*
* \file
* Arcitecture-depend libconio module, which supposes
* the machine has character VRAM and optional attribute VRAM
* on memory.
* \author
* Takahide Matsutsuka <markn@markn.org>
*/
#ifndef __LIBCONIO_ARCH_H__
#define __LIBCONIO_ARCH_H__
#ifndef LIBCONIO_VRAM_CHAR
#error "must specify vram address for characters!"
#endif /* LIBCONIO_VRAM_CHAR */
#ifdef LIBCONIO_CONF_ATTRIBUTES_ENABLED
#ifndef LIBCONIO_VRAM_ATTR
#error "must specify vram address for attributes!"
#endif /* LIBCONIO_VRAM_ATTR */
#endif /* LIBCONIO_CONF_ATTRIBUTES_ENABLED */
#ifndef LIBCONIO_CONF_SCREEN_WIDTH
#define LIBCONIO_CONF_SCREEN_WIDTH 32
#endif /* LIBCONIO_CONF_SCREEN_WIDTH */
#ifndef LIBCONIO_CONF_SCREEN_HEIGHT
#define LIBCONIO_CONF_SCREEN_HEIGHT 16
#endif /* LIBCONIO_CONF_SCREEN_HEIGHT */
#ifndef LIBCONIO_COLOR_REVERSED
#define LIBCONIO_COLOR_REVERSED 0x21
#endif /* LIBCONIO_COLOR_REVERSED */
#ifndef LIBCONIO_COLOR_NORMAL
#define LIBCONIO_COLOR_NORMAL 0x20
#endif /* LIBCONIO_COLOR_NORMAL */
/*
* An offset caluclation logic.
* The default supposes the VRAM is sequential
*/
#ifndef LIBCONIO_VRAM_OFFSET
#define LIBCONIO_VRAM_OFFSET(x, y) (y) * LIBCONIO_CONF_SCREEN_WIDTH + (x)
#endif /* VRAM_OFFSET */
/*
* A maximum offset + 1.
* If offset is equal or more than this maximum, the screen will scroll.
*/
#ifndef LIBCONIO_VRAM_OFFSET_MAX
#define LIBCONIO_VRAM_OFFSET_MAX \
(LIBCONIO_CONF_SCREEN_HEIGHT * LIBCONIO_CONF_SCREEN_WIDTH)
#endif /* VRAM_MAX */
#endif /* __LIBCONIO_ARCH_H__ */