ledeffect.c

是一个键盘测试程序

#include "ledeffect.h"

int u2_len(unsigned short* str) {
	unsigned short * cur = str;
	while(*cur) {
		cur ++;
	}
	return cur - str;
}

void from_right2left(ledrv_t* drv, unsigned short* text, int step) {
	unsigned short buffer[512];
	int i,pos;
	int text_len;
	int nextpos;
	memset(buffer,0,sizeof(buffer));
	unsigned short * cur_text = buffer;
	text_len = u2_len(text);
	memcpy(buffer, text, text_len*sizeof(unsigned short));
	//buffer[0] = buffer[1] = buffer[2] = buffer[3] = buffer[4] = buffer[5] = 0x3000;
	//while(*cur_text) 
	for(i=0;1;i+=step)
	{
		ledrv_clear(drv);
		pos = draw_text(drv,0, -1*i+96, cur_text,&nextpos);
	   ledrv_flush(drv);
		sleep(1);
		if(drv->bStop_show)
			break;
		if((pos >= text_len) && (nextpos < 0)){
			//printf("pos=%d;text_len=%d",pos,text_len);
			break;
		}
		//cur_text++;
	}
	//clean the screen
	ledrv_clear(drv);
	ledrv_flush(drv);
}

void from_left2right(ledrv_t* drv, unsigned short* text, int step) {
	unsigned short buffer[512];
	int i,pos;
	int text_len,draw_len;
	int nextpos;
	memset(buffer,0,sizeof(buffer));
	unsigned short * cur_text = buffer;
	text_len = u2_len(text);
	draw_len = get_text_draw_length(drv, text);
 
	memcpy(buffer, text, text_len*sizeof(unsigned short)); 
	for(i=0;1;i+=step)
	{
		ledrv_clear(drv);
		pos = draw_text(drv,0, -1*draw_len+i, cur_text, &nextpos);
	   ledrv_flush(drv);
		sleep(1);
		if(drv->bStop_show)
			break;
		if((pos <= 0) && (nextpos > 96)){
			break;
		}
		//cur_text++;
	}
	//clean the screen
	ledrv_clear(drv);
	ledrv_flush(drv);
}

void from_top2bottom(ledrv_t* drv, unsigned short* text,int step) {

	unsigned short buffer[512];
	int i,pos;
	int text_len,draw_len;
	int nextpos;
	memset(buffer,0,sizeof(buffer));
	unsigned short * cur_text = buffer;
	text_len = u2_len(text);
	draw_len = get_text_draw_length(drv, text);
 
	memcpy(buffer, text, text_len*sizeof(unsigned short)); 
	for(i=0;1;i+=step)
	{
		ledrv_clear(drv);
		pos = draw_text(drv,i*step-16, 0, cur_text, &nextpos);
	   ledrv_flush(drv);
		sleep(1);
		
		if(drv->bStop_show)
			break;

		if(i*step > 32){
			break;
		}
		//cur_text++;
	}
	//clean the screen
	ledrv_clear(drv);
	ledrv_flush(drv);
}

void from_bottom2top(ledrv_t* drv, unsigned short* text,int step)
{
	unsigned short buffer[512];
	int i,pos;
	int text_len,draw_len;
	int nextpos;
	memset(buffer,0,sizeof(buffer));
	unsigned short * cur_text = buffer;
	text_len = u2_len(text);
	draw_len = get_text_draw_length(drv, text);
 
	memcpy(buffer, text, text_len*sizeof(unsigned short)); 
	for(i=0;1;i+=step)
	{
		ledrv_clear(drv);
		pos = draw_text(drv,-1*i*step+15, 0, cur_text, &nextpos);
	   ledrv_flush(drv);
		sleep(1);
		//printf("%d\n",-1*i*step+16);
		if(drv->bStop_show)
			break;
		if(-1*i*step+15 < -15){
			break;
		}
		//cur_text++;
	}
	//clean the screen
	ledrv_clear(drv);
	ledrv_flush(drv);
}

void static_draw(ledrv_t* drv, unsigned short* text)
{
	unsigned short buffer[512];
	int i,pos;
	int text_len,draw_len;
	int nextpos;
	memset(buffer,0,sizeof(buffer));
	unsigned short * cur_text = buffer;
	text_len = u2_len(text);
	draw_len = get_text_draw_length(drv, text);
 
	memcpy(buffer, text, text_len*sizeof(unsigned short)); 
	ledrv_clear(drv);
	pos = draw_text(drv,0, 0, cur_text, &nextpos);
	ledrv_flush(drv);
}

void flash_draw(ledrv_t* drv, unsigned short* text,int times)
{
	unsigned short buffer[512];
	int i,pos;
	int text_len,draw_len;
	int nextpos;
	memset(buffer,0,sizeof(buffer));
	unsigned short * cur_text = buffer;
	text_len = u2_len(text);
	draw_len = get_text_draw_length(drv, text);
 
	memcpy(buffer, text, text_len*sizeof(unsigned short)); 
	ledrv_clear(drv);
	
	for(i = 0 ; i<times; i++) {
		ledrv_clear(drv);
		pos = draw_text(drv,0, 0, cur_text, &nextpos);
		ledrv_flush(drv);
		sleep(1);
		ledrv_clear(drv);
		ledrv_flush(drv);
		sleep(1);
	}
}