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//
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//
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// Copyright 2010 TheSeven
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//
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//
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// This file is part of emBIOS.
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//
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// emBIOS is free software: you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation, either version 2 of the
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// License, or (at your option) any later version.
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//
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// emBIOS is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with emBIOS. If not, see <http://www.gnu.org/licenses/>.
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//
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//
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#include "global.h"
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#include "lcdconsole.h"
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#include "drawing.h"
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#include "util.h"
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#define OFFSETX LCDCONSOLE_OFFSETX
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#define OFFSETY LCDCONSOLE_OFFSETY
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#define PIXELBYTES (LCD_BYTESPERPIXEL)
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#define LINEBYTES (LCD_WIDTH * PIXELBYTES)
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#define COLBYTES (FONT_WIDTH * PIXELBYTES)
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#define ROWBYTES (FONT_HEIGHT * LINEBYTES)
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#define OFFSETBYTES (LINEBYTES * OFFSETY + PIXELBYTES * OFFSETX)
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static unsigned char framebuf[LCD_FRAMEBUFSIZE];
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static unsigned int current_row;
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static unsigned int current_col;
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void lcdconsole_init()
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{
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memset(framebuf, -1, sizeof(framebuf));
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current_row = 0;
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current_col = -1;
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}
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void lcdconsole_putc(char string, int fgcolor, int bgcolor)
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{
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if (string == '\r') return;
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current_col++;
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if (string == '\n')
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{
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current_col = -1;
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current_row++;
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return;
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}
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if (string == '\t')
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{
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current_col |= 3;
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return;
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}
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if (current_col >= LCDCONSOLE_COLS)
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{
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current_col = 0;
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current_row++;
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}
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if (current_row >= LCDCONSOLE_ROWS)
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{
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int offset = current_row - LCDCONSOLE_ROWS + 1;
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memcpy(&framebuf[LINEBYTES * OFFSETY], &framebuf[LINEBYTES * OFFSETY + ROWBYTES * offset],
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ROWBYTES * (LCDCONSOLE_ROWS - offset));
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memset(&framebuf[LINEBYTES * OFFSETY + ROWBYTES * (LCDCONSOLE_ROWS - offset)],
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-1, ROWBYTES * offset);
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current_row = LCDCONSOLE_ROWS - 1;
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}
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renderchar(&framebuf[OFFSETBYTES + ROWBYTES * current_row + COLBYTES * current_col],
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fgcolor, bgcolor, string, LINEBYTES);
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}
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void lcdconsole_puts(const char* string, int fgcolor, int bgcolor)
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{
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while (*string) lcdconsole_putc(*string++, fgcolor, bgcolor);
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}
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void lcdconsole_update()
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{
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displaylcd(0, LCD_WIDTH - 1, 0, LCD_HEIGHT - 1, framebuf, 0);
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}
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