writepic.c

瑞泰公司ICETEK-YUV图像子系统设计范例

void test(int VPTR)
{
	int i,j,k,value;
    int *ptr=(int *)VPTR;
	
		for(i=0;i<576;i++)
			for(j=0,k=0;j<512;j++,k+=2)
			{ 	
				k=k%0x100;
				value=0;
				value=value|(((k+1)<<24)|(k<<8)|(0x80<<16)|0x80);
				*ptr=value;
				ptr++;	
			}
}
void write_pic(int *dst,char *src)
{
  int i,j,k,t;
  char *s_save;
  //for(i=0;i<100000;i++);
  for(i=0;i<576/2;i++)
  {
  	s_save=src;
  	for(j=0;j<2048/4;j++,dst++)
  	{
  		
  		if(j<352)
  		{
  			
  			//*src=*src&0x7f;
  			//if(*src == 0)    *src=1;
  			//if(*src == 0xff) *src=0xfe;
  			t=*src;
  			k=0x00800080;
  			t=t<<8;
  			t=t&0xff00;
  			k=k|t;
  			src++;
  			t=*src;
  			t=t<<24;
  			t=t&0xff000000;
  			k=k|t;
  			src++;
  			*dst=k;
  		}
  		else
  		{
  			*dst=0x10801080;
  		}
  	}
  	src=s_save;
	for(j=0;j<2048/4;j++,dst++)
  	{
  		
  		if(j<352)
  		{
  			//*src=*src&0x7f;
  			//if(*src == 0)    *src=1;
  			//if(*src == 0xff) *src=0xf0;
  			
  			t=*src;
  			k=0x00800080;
  			t=t<<8;
  			t=t&0xff00;
  			k=k|t;
  			src++;
  			t=*src;
  			t=t<<24;
  			t=t&0xff000000;
  			k=k|t;
  			src++;
  			*dst=k;
  		}
  		else
  		{
  			*dst=0x10801080;
  		}
  	}
  	
  	
  }
}
void test1(int VPTR)
{
	int i,j,k,value;
    int *ptr=(int *)VPTR;
	
		for(i=0;i<576;i++)
			for(j=0,k=0;j<512;j++,k+=2)
			{ 	
				
				
				value=0x10801080;
				*ptr=value;
				ptr++;	
			}
}