bootpack.c

/* bootpackのメイン */

#include "bootpack.h"
#include <stdio.h>

void HariMain(void)
{
	struct BOOTINFO *binfo = (struct BOOTINFO *) ADR_BOOTINFO;
	char s[40], keybuf[32], mousebuf[128];
	int mx, my, i;
	unsigned int memtotal;
	struct MOUSE_DEC mdec;
	struct MEMMAN *memman = (struct MEMMAN *) MEMMAN_ADDR;
	struct SHTCTL *shtctl;
	struct SHEET *sht_back, *sht_mouse;
	unsigned char *buf_back, buf_mouse[256];

	init_gdtidt();
	init_pic();
	io_sti(); /* IDT/PIC的初始化已经完成，于是开放CPU的中断 */

	fifo8_init(&keyfifo, 32, keybuf);
	fifo8_init(&mousefifo, 128, mousebuf);
	io_out8(PIC0_IMR, 0xf9); /* 开放PIC1和键盘中断(11111001) */
	io_out8(PIC1_IMR, 0xef); /* 开放鼠标中断(11101111) */

	init_keyboard();
	enable_mouse(&mdec);
	memtotal = memtest(0x00400000, 0xbfffffff);
	memman_init(memman);
	memman_free(memman, 0x00001000, 0x0009e000); /* 0x00001000 - 0x0009efff */
	memman_free(memman, 0x00400000, memtotal - 0x00400000);

	init_palette();
	shtctl = shtctl_init(memman, binfo->vram, binfo->scrnx, binfo->scrny);
	sht_back  = sheet_alloc(shtctl);
	sht_mouse = sheet_alloc(shtctl);
	buf_back  = (unsigned char *) memman_alloc_4k(memman, binfo->scrnx * binfo->scrny);
	sheet_setbuf(sht_back, buf_back, binfo->scrnx, binfo->scrny, -1); /* 没有透明色 */
	sheet_setbuf(sht_mouse, buf_mouse, 16, 16, 99); /* 透明色号99 */
	init_screen8(buf_back, binfo->scrnx, binfo->scrny);
	init_mouse_cursor8(buf_mouse, 99); /* 背景色号99 */
	sheet_slide(shtctl, sht_back, 0, 0);
	mx = (binfo->scrnx - 16) / 2; /* 按显示在画面中央来计算坐标 */
	my = (binfo->scrny - 28 - 16) / 2;
	sheet_slide(shtctl, sht_mouse, mx, my);
	sheet_updown(shtctl, sht_back,  0);
	sheet_updown(shtctl, sht_mouse, 1);
	sprintf(s, "(%3d, %3d)", mx, my);
	putfonts8_asc(buf_back, binfo->scrnx, 0, 0, COL8_FFFFFF, s);
	sprintf(s, "memory %dMB free : %dKB", memtotal / (1024 * 1024), memman_total(memman) / 1024);
	putfonts8_asc(buf_back, binfo->scrnx, 0, 32, COL8_FFFFFF, s);
	sheet_refresh(shtctl, sht_back, 0, 0, binfo->scrnx, 48); /* 刷新文字 */

	for (;;) {
		io_cli();
		if (fifo8_status(&keyfifo) + fifo8_status(&mousefifo) == 0) {
			io_stihlt();
		} else {
			if (fifo8_status(&keyfifo) != 0) {
				i = fifo8_get(&keyfifo);
				io_sti();
				sprintf(s, "%02X", i);
				boxfill8(buf_back, binfo->scrnx, COL8_008484,  0, 16, 15, 31);
				putfonts8_asc(buf_back, binfo->scrnx, 0, 16, COL8_FFFFFF, s);
				sheet_refresh(shtctl, sht_back, 0, 16, 16, 32); /* 刷新文字 */
			} else if (fifo8_status(&mousefifo) != 0) {
				i = fifo8_get(&mousefifo);
				io_sti();
				if (mouse_decode(&mdec, i) != 0) {
					/* 3字节都凑齐了，所以把它们显示出来*/
					sprintf(s, "[lcr %4d %4d]", mdec.x, mdec.y);
					if ((mdec.btn & 0x01) != 0) {
						s[1] = 'L';
					}
					if ((mdec.btn & 0x02) != 0) {
						s[3] = 'R';
					}
					if ((mdec.btn & 0x04) != 0) {
						s[2] = 'C';
					}
					boxfill8(buf_back, binfo->scrnx, COL8_008484, 32, 16, 32 + 15 * 8 - 1, 31);
					putfonts8_asc(buf_back, binfo->scrnx, 32, 16, COL8_FFFFFF, s);
					sheet_refresh(shtctl, sht_back, 32, 16, 32 + 15 * 8, 32);  /* 刷新文字 */
					/* 移动光标 */
					mx += mdec.x;
					my += mdec.y;
					if (mx < 0) {
						mx = 0;
					}
					if (my < 0) {
						my = 0;
					}
					if (mx > binfo->scrnx - 16) {
						mx = binfo->scrnx - 16;
					}
					if (my > binfo->scrny - 16) {
						my = binfo->scrny - 16;
					}
					sprintf(s, "(%3d, %3d)", mx, my);
					boxfill8(buf_back, binfo->scrnx, COL8_008484, 0, 0, 79, 15); /* 消坐标 */
					putfonts8_asc(buf_back, binfo->scrnx, 0, 0, COL8_FFFFFF, s); /* 写坐标 */
					sheet_refresh(shtctl, sht_back, 0, 0, 80, 16); /* 刷新文字 */
					sheet_slide(shtctl, sht_mouse, mx, my); /* 包含sheet_refresh含sheet_refresh */
				}
			}
		}
	}
}