358 lines
9.9 KiB
C
358 lines
9.9 KiB
C
#include <stdio.h>
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#include "app.h"
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#include "bootpack.h"
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#include "console.h"
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#include "desctbl.h"
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#include "fifo.h"
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#include "graphic.h"
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#include "int.h"
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#include "io.h"
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#include "keyboard.h"
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#include "memory.h"
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#include "mouse.h"
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#include "sheet.h"
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#include "task.h"
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#include "timer.h"
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#include "window.h"
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int main(void) {
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struct BootInfo *binfo = (struct BootInfo *)ADR_BOOTINFO;
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struct MemMan *memman = (struct MemMan *)MEMMAN_ADDR;
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struct MouseDec mdec;
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char s[40], mcursor[256];
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unsigned int memtotal;
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struct Shtctl *shtctl;
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struct Sheet *sht_back, *sht_mouse;
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struct Sheet *sht = NULL, *key_win;
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unsigned char *buf_back, buf_mouse[256];
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struct FIFO32 fifo, keycmd;
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struct Console *cons = NULL;
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struct Task *task;
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int fifobuf[128], keycmd_buf[32];
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int data, key_to = 0, key_shift = 0, key_ctl = 0, key_alt = 0,
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key_leds = (binfo->leds >> 4) & 7, keycmd_wait = -1;
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int x, y, mmx = -1, mmy = -1, mmx2 = 0, new_mx = -1, new_my = 0,
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new_wx = 0x7fffffff, new_wy = 0;
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init_gdtidt();
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init_pic(); // GDT/IDT完成初始化，开放CPU中断
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io_sti();
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fifo32_init(&fifo, 128, fifobuf, NULL);
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fifo32_init(&keycmd, 32, keycmd_buf, NULL);
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init_keyboard(&fifo, 256);
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enable_mouse(&fifo, 512, &mdec);
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init_pit();
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io_out8(PIC0_IMR, 0xf8); // 开放PIT、PIC1以及键盘中断
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io_out8(PIC1_IMR, 0xef); // 开放鼠标中断
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memtotal = memtest(0x00400000, 0xbfffffff);
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memman_init(memman);
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// 书中为0x00001000 ~ 0x0009e000
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// 注1: 测试时发现会造成错误（原因未知），所以改为由0x00010000开始
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// 注2: 在640*480模式下，free该段内存后会导致屏幕画面错误
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// memman_free(memman, 0x00010000, 0x0009e000); // 0x00010000 ~ 0x0009efff
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memman_free(memman, 0x00400000, memtotal - 0x00400000);
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init_palette();
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shtctl = shtctl_init(memman, binfo->vram, binfo->scrnx, binfo->scrny);
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struct Task *task_a = task_init(memman);
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fifo.task = task_a;
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task_run(task_a, 1, 0);
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// sht_back
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sht_back = sheet_alloc(shtctl);
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buf_back =
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(unsigned char *)memman_alloc_4k(memman, binfo->scrnx * binfo->scrny);
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sheet_setbuf(sht_back, buf_back, binfo->scrnx, binfo->scrny,
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-1); // 没有透明色
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init_screen8(buf_back, binfo->scrnx, binfo->scrny);
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// sht_mouse
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sht_mouse = sheet_alloc(shtctl);
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sheet_setbuf(sht_mouse, buf_mouse, 16, 16, 99); // 透明色号99
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init_mouse_cursor8(buf_mouse, 99); // 背景色号99
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int mx = (binfo->scrnx - 16) / 2; // 按在画面中央来计算坐标
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int my = (binfo->scrny - 28 - 16) / 2;
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// sht_cons
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key_win = open_console(shtctl, memtotal);
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sheet_slide(sht_back, 0, 0);
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sheet_slide(key_win, 32, 4);
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sheet_slide(sht_mouse, mx, my);
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sheet_updown(sht_back, 0);
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sheet_updown(key_win, 1);
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sheet_updown(sht_mouse, 2);
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keywin_on(key_win);
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// 避免与键盘状态冲突
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fifo32_put(&keycmd, KEYCMD_LED);
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fifo32_put(&keycmd, key_leds);
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*((int *)0x0fe4) = (int)shtctl;
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*((int *)0x0fec) = (int)&fifo;
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for (;;) {
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if (fifo32_status(&keycmd) > 0 && keycmd_wait < 0) {
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// 如果存在向键盘控制器发送的数据
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keycmd_wait = fifo32_get(&keycmd);
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wait_KBC_sendready();
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io_out8(PORT_KEYCMD, keycmd_wait);
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}
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io_cli();
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if (fifo32_status(&fifo) == 0) {
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if (new_mx >= 0) {
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io_sti();
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sheet_slide(sht_mouse, new_mx, new_my);
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new_mx = -1;
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} else if (new_wx != 0x7fffffff) {
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io_sti();
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sheet_slide(sht, new_wx, new_wy);
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new_wx = 0x7fffffff;
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} else {
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task_sleep(task_a);
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io_sti();
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}
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} else {
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data = fifo32_get(&fifo);
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io_sti();
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if (key_win != NULL && !key_win->flags) {
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if (shtctl->top == 1) {
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key_win = NULL;
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} else {
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key_win = shtctl->sheets[shtctl->top - 1];
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}
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}
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if (256 <= data && data <= 511) {
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// 键盘数据
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if (data < 0x80 + 256) {
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if (key_shift == 0) {
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s[0] = keytable0[data - 256];
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} else {
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s[0] = keytable1[data - 256];
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}
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} else {
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s[0] = 0;
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}
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if ('A' <= s[0] && s[0] <= 'Z') {
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if ((!(key_leds & 4) && !key_shift) ||
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((key_leds & 4) && key_shift)) {
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s[0] += 0x20;
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}
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}
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if (s[0] && (key_win || !key_ctl)) {
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fifo32_put(&key_win->task->fifo, s[0] + 256);
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}
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if (data == 256 + 0x0e) {
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// 退格键
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fifo32_put(&key_win->task->fifo, 8 + 256);
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}
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// 回车键
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if (data == 256 + 0x1c) {
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fifo32_put(&key_win->task->fifo, 10 + 256);
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}
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// Tab键
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if (data == 256 + 0x0f) {
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keywin_off(key_win);
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int j = key_win->height - 1;
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if (j == 0) {
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j = shtctl->top - 1;
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}
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key_win = shtctl->sheets[j];
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keywin_on(key_win);
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}
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// 左Shift按下
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if (data == 256 + 0x2a) {
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key_shift |= 1;
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}
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// 右Shift按下
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if (data == 256 + 0x36) {
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key_shift |= 2;
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}
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// 左Shift释放
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if (data == 256 + 0xaa) {
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key_shift &= ~1;
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}
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// 右Shift释放
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if (data == 256 + 0xb6) {
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key_shift &= ~2;
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}
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// Ctrl按下
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if (data == 256 + 0x1d) {
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key_ctl |= 1;
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}
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// Ctrl释放
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if (data == 256 + 0x9d) {
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key_ctl &= ~1;
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}
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// Alt按下
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if (data == 256 + 0x38) {
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key_alt |= 1;
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}
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// Alt键释放
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if (data == 256 + 0xB8) {
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key_alt &= ~1;
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}
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// CapsLock
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if (data == 256 + 0x3a) {
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key_leds ^= 4;
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fifo32_put(&keycmd, KEYCMD_LED);
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fifo32_put(&keycmd, key_leds);
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}
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// NumLock
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if (data == 256 + 0x45) {
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key_leds ^= 2;
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fifo32_put(&keycmd, KEYCMD_LED);
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fifo32_put(&keycmd, key_leds);
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}
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// ScrollLock
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if (data == 256 + 0x46) {
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key_leds ^= 1;
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fifo32_put(&keycmd, KEYCMD_LED);
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fifo32_put(&keycmd, key_leds);
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}
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if (data == 256 + 0x2e && key_ctl != 0 && key_win) {
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struct Task *task = key_win->task;
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if (task && task->tss.ss0 != 0) {
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cons_putstr(task->cons, "\nBreak(key):\n");
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io_cli();
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task->tss.eax = (int)&(task->tss.esp0);
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task->tss.eip = (int)asm_end_app;
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io_sti();
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}
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}
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if (data == 256 + 0x3c && key_shift != 0) {
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if (key_win) {
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keywin_off(key_win);
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}
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key_win = open_console(shtctl, memtotal);
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sheet_slide(key_win, 32, 4);
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sheet_updown(key_win, shtctl->top);
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keywin_on(key_win);
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}
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if (data == 256 + 0x1d && shtctl->top > 2) {
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sheet_updown(shtctl->sheets[1], shtctl->top - 1);
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}
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// 键盘成功接收到数据
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if (data == 256 + 0xfa) {
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keycmd_wait = -1;
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}
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if (data == 256 + 0xfe) {
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wait_KBC_sendready();
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io_out8(PORT_KEYDAT, keycmd_wait);
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}
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} else if (512 <= data && data <= 767) {
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// 鼠标数据
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if (mouse_decode(&mdec, data - 512)) {
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// 移动光标
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mx += mdec.x;
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my += mdec.y;
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if (mx < 0) {
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mx = 0;
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}
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if (my < 0) {
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my = 0;
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}
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if (mx > binfo->scrnx - 1) {
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mx = binfo->scrnx - 1;
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}
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if (my > binfo->scrny - 1) {
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my = binfo->scrny - 1;
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}
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new_mx = mx;
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new_my = my;
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if (mdec.btn & 0x01) {
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if (mmx < 0) {
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for (int j = shtctl->top - 1; j > 0; j--) {
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sht = shtctl->sheets[j];
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x = mx - sht->vx0;
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y = my - sht->vy0;
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if (0 <= x && x < sht->bxsize && 0 <= y && y < sht->bysize) {
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if (sht->buf[y * sht->bxsize + x] != sht->col_inv) {
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sheet_updown(sht, shtctl->top - 1);
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if (sht != key_win) {
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keywin_off(key_win);
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key_win = sht;
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keywin_on(key_win);
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}
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if (3 <= x && x < sht->bxsize - 3 && 3 <= y && y < 21) {
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mmx = mx;
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mmy = my;
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mmx2 = sht->vx0;
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new_wy = sht->vy0;
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}
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if (sht->bxsize - 21 <= x && x < sht->bxsize - 5 &&
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5 <= y && y < 19) {
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// 点击X
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if (sht->flags & 0x10) {
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task = sht->task;
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cons_putstr(task->cons, "\nBreak(mouse) :\n");
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io_cli();
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task->tss.eax = (int)&(task->tss.esp0);
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task->tss.eip = (int)asm_end_app;
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io_sti();
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} else {
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task = sht->task;
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io_cli();
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fifo32_put(&task->fifo, 4);
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io_sti();
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}
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}
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break;
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}
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}
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}
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} else {
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x = mx - mmx;
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y = my - mmy;
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new_wx = (mmx2 + x + 2) & ~3;
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new_wy = new_wy + y;
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mmy = my;
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}
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} else {
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mmx = -1;
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if (new_wx != 0x7fffffff) {
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sheet_slide(sht, new_wx, new_wy);
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new_wx = 0x7fffffff;
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}
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}
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}
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} else if (768 <= data && data <= 1023) {
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close_console(shtctl->sheets0 + (data - 768));
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} else if (1024 <= data && data <= 2023) {
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close_cons_task(taskctl->tasks0 + (data - 1024));
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}
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}
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}
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return 0;
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}
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