Add 11 day code

11_day/graphic.c

@@ -0,0 +1,157 @@
+/* 关于绘图部分的处理 */
+
+#include "bootpack.h"
+
+void init_palette(void)
+{
+	static unsigned char table_rgb[16 * 3] = {
+		0x00, 0x00, 0x00,	/*  0:黑 */
+		0xff, 0x00, 0x00,	/*  1:梁红 */
+		0x00, 0xff, 0x00,	/*  2:亮绿 */
+		0xff, 0xff, 0x00,	/*  3:亮黄 */
+		0x00, 0x00, 0xff,	/*  4:亮蓝 */
+		0xff, 0x00, 0xff,	/*  5:亮紫 */
+		0x00, 0xff, 0xff,	/*  6:浅亮蓝 */
+		0xff, 0xff, 0xff,	/*  7:白 */
+		0xc6, 0xc6, 0xc6,	/*  8:亮灰 */
+		0x84, 0x00, 0x00,	/*  9:暗红 */
+		0x00, 0x84, 0x00,	/* 10:暗绿 */
+		0x84, 0x84, 0x00,	/* 11:暗黄 */
+		0x00, 0x00, 0x84,	/* 12:暗青 */
+		0x84, 0x00, 0x84,	/* 13:暗紫 */
+		0x00, 0x84, 0x84,	/* 14:浅暗蓝 */
+		0x84, 0x84, 0x84	/* 15:暗灰 */
+	};
+	set_palette(0, 15, table_rgb);
+	return;
+
+	/* C语言中的static char语句只能用于数据，相当于汇编中的DB指令 */
+}
+
+void set_palette(int start, int end, unsigned char *rgb)
+{
+	int i, eflags;
+	eflags = io_load_eflags();	/* 记录中断许可标志的值 */
+	io_cli(); 					/* 将中断许可标志置为0,禁止中断 */
+	io_out8(0x03c8, start);
+	for (i = start; i <= end; i++) {
+		io_out8(0x03c9, rgb[0] / 4);
+		io_out8(0x03c9, rgb[1] / 4);
+		io_out8(0x03c9, rgb[2] / 4);
+		rgb += 3;
+	}
+	io_store_eflags(eflags);	/* 复原中断许可标志 */
+	return;
+}
+
+void boxfill8(unsigned char *vram, int xsize, unsigned char c, int x0, int y0, int x1, int y1)
+{
+	int x, y;
+	for (y = y0; y <= y1; y++) {
+		for (x = x0; x <= x1; x++)
+			vram[y * xsize + x] = c;
+	}
+	return;
+}
+
+void init_screen8(char *vram, int x, int y)
+{
+	boxfill8(vram, x, COL8_008484,  0,     0,      x -  1, y - 29);
+	boxfill8(vram, x, COL8_C6C6C6,  0,     y - 28, x -  1, y - 28);
+	boxfill8(vram, x, COL8_FFFFFF,  0,     y - 27, x -  1, y - 27);
+	boxfill8(vram, x, COL8_C6C6C6,  0,     y - 26, x -  1, y -  1);
+
+	boxfill8(vram, x, COL8_FFFFFF,  3,     y - 24, 59,     y - 24);
+	boxfill8(vram, x, COL8_FFFFFF,  2,     y - 24,  2,     y -  4);
+	boxfill8(vram, x, COL8_848484,  3,     y -  4, 59,     y -  4);
+	boxfill8(vram, x, COL8_848484, 59,     y - 23, 59,     y -  5);
+	boxfill8(vram, x, COL8_000000,  2,     y -  3, 59,     y -  3);
+	boxfill8(vram, x, COL8_000000, 60,     y - 24, 60,     y -  3);
+
+	boxfill8(vram, x, COL8_848484, x - 47, y - 24, x -  4, y - 24);
+	boxfill8(vram, x, COL8_848484, x - 47, y - 23, x - 47, y -  4);
+	boxfill8(vram, x, COL8_FFFFFF, x - 47, y -  3, x -  4, y -  3);
+	boxfill8(vram, x, COL8_FFFFFF, x -  3, y - 24, x -  3, y -  3);
+	return;
+}
+
+void putfont8(char *vram, int xsize, int x, int y, char c, char *font)
+{
+	int i;
+	char *p, d /* data */;
+	for (i = 0; i < 16; i++) {
+		p = vram + (y + i) * xsize + x;
+		d = font[i];
+		if ((d & 0x80) != 0) { p[0] = c; }
+		if ((d & 0x40) != 0) { p[1] = c; }
+		if ((d & 0x20) != 0) { p[2] = c; }
+		if ((d & 0x10) != 0) { p[3] = c; }
+		if ((d & 0x08) != 0) { p[4] = c; }
+		if ((d & 0x04) != 0) { p[5] = c; }
+		if ((d & 0x02) != 0) { p[6] = c; }
+		if ((d & 0x01) != 0) { p[7] = c; }
+	}
+	return;
+}
+
+void putfonts8_asc(char *vram, int xsize, int x, int y, char c, unsigned char *s)
+{
+	extern char hankaku[4096];
+	/* C语言中，字符串都是以0x00结尾 */
+	for (; *s != 0x00; s++) {
+		putfont8(vram, xsize, x, y, c, hankaku + *s * 16);
+		x += 8;
+	}
+	return;
+}
+
+void init_mouse_cursor8(char *mouse, char bc)
+/* 鼠标的数据准备（16x16） */
+{
+	static char cursor[16][16] = {
+		"**************..",
+		"*OOOOOOOOOOO*...",
+		"*OOOOOOOOOO*....",
+		"*OOOOOOOOO*.....",
+		"*OOOOOOOO*......",
+		"*OOOOOOO*.......",
+		"*OOOOOOO*.......",
+		"*OOOOOOOO*......",
+		"*OOOO**OOO*.....",
+		"*OOO*..*OOO*....",
+		"*OO*....*OOO*...",
+		"*O*......*OOO*..",
+		"**........*OOO*.",
+		"*..........*OOO*",
+		"............*OO*",
+		".............***"
+	};
+	int x, y;
+
+	for (y = 0; y < 16; y++) {
+		for (x = 0; x < 16; x++) {
+			if (cursor[y][x] == '*') {
+				mouse[y * 16 + x] = COL8_000000;
+			}
+			if (cursor[y][x] == 'O') {
+				mouse[y * 16 + x] = COL8_FFFFFF;
+			}
+			if (cursor[y][x] == '.') {
+				mouse[y * 16 + x] = bc;
+			}
+		}
+	}
+	return;
+}
+
+void putblock8_8(char *vram, int vxsize, int pxsize,
+	int pysize, int px0, int py0, char *buf, int bxsize)
+{
+	int x, y;
+	for (y = 0; y < pysize; y++) {
+		for (x = 0; x < pxsize; x++) {
+			vram[(py0 + y) * vxsize + (px0 + x)] = buf[y * bxsize + x];
+		}
+	}
+	return;
+}