graph.c

嵌入式计算系统-走迷宫 通过LCD显示地图和汽车

/*
 *	test.c  ---	Primary header file for 
 *				LCD Device Driver with Framebuffer
 *	(C)opyright 2004 Bit 920 Labs
 *
 *	Written by: Tangliting <[e-mail]>
 *	Created on: Sat. Mar 7 14:33:45 GMT +8:00 2004
 */

#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/mman.h>
#include <string.h>
#include <linux/fb.h>
#include <linux/kd.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <termios.h>
#include <sys/time.h>
#include <sys/ioctl.h>

#include "lcd.c"
#include "ascii.lib"

FILE *hzkFile = NULL;

void DrawCharEN(short x, short y, unsigned char c, ColorType color)
{
	unsigned char codes[16];
	short i;

	for (i = 0; i < 16; i++)
		codes[i] = ascii_codes[c][i];
	
	fb_Text_8x16(x, y, codes, color);
}

void DrawCharCHS(int x, int y, unsigned char c[2], ColorType color)
{
	unsigned char codes[32];
	short i;
	unsigned char ch, cl;
	unsigned long offset;

	if (hzkFile == NULL)
	{
		printf("No Chinese Character Library opened.\n");

		exit(1);
	}

	ch = c[0];
	cl = c[1];

	offset = ((ch - 0xa1) * 94L + (cl - 0xa1)) * 32L;

	fseek(hzkFile, offset, SEEK_SET);
	fread(codes, 32, 1, hzkFile);	

	fb_Text_16x16(x, y, codes, color);
}

int  main()
{
    short x, y;
	short i;
	ColorType color = SYS_WHITE;
	short colorPage;
	short endFlag;
	unsigned char * ascTxt = "Beijing Institute of Technology";
	unsigned char * chsTxt = "北京理工大学计算机学院";
	unsigned char bufferTxt[2];
	
	short x_max, y_max;
	ColorType color_max;

    if (fb_Init() == -1)
	{
		printf("Initialize Framebuffer LCD failed.\n");
		exit(1);
	}
    
    x_max = fb_GetScreenWidth() - 1;
    y_max = fb_GetScreenHeight() - 1;
    color_max = fb_GetScreenColors() - 1;
    
	

	
	
	fb_Clear(SYS_BLACK);
	
	
	fb_DrawLine_H(10, x_max,  100, SYS_WHITE);
	fb_DrawLine_V(10, 10, y_max,GREEN );
	fb_DrawRect(30, 30,  100,  100, GREEN);	
	fb_FillRect(100, 100, 200, 300, BLUE);
	fb_DrawEllipse(100, 100, 50, 50, CYAN);
	fb_DrawEllipse(300, 400, 50, 60, YELLOW);
	fb_FillEllipse( 200, 200, 20, 25, ORANGE);
	fb_FillEllipse( 300, 300, 50, 15, PURPLE);
		
	x = 320, y = 240;
	for (i = 0; i < strlen(ascTxt); i++)
	{
		DrawCharEN(x, y, ascTxt[i], SYS_WHITE);
		x += 8;
	}
	
	printf("Test text_16x16:\t");
	hzkFile = fopen("./hzk", "rb"); //change from hz16 to hzk
	x = 340, y = 260;
	for (i = 0; i < strlen(chsTxt); i += 2)
	{
		bufferTxt[0] = chsTxt[i];
		bufferTxt[1] = chsTxt[i + 1];
		DrawCharCHS(x, y, bufferTxt, CYAN);
		x += 16;
	}
	fclose(hzkFile);

	printf("\nFinished Test. Press any key to exit.\n");
	getchar();

    fb_Release();
}