void fb_drawfpage(PFBDEV pFbdev,int x,int y, u32_t color)
{
int i=0;
for (i = x; i < 500; i++)
{
if(i%10==9)
{
fb_drawvline(pFbdev,i,100,0x00ff0000);
}
else
{
fb_drawvline(pFbdev,i,100,color);
}
}
}
void fb_drawhline(PFBDEV pFbdev,int x,int y,u32_t color)
{
int i;
for (i = 0; i < pFbdev->fb_var.xres; i++)
{
fb_drawpixel(pFbdev,i,y,color);
}
return;
int fb_line(int x1,int y1,int x2,int y2,u32_t color)
{
int dx=x2-x1;
int dy=y2-y1;
int p=0;
int inc=((dx*dy<0)?-1:1);
if(abs(dx)>abs(dy))
{
if(dx<0)
{
swap(&x1,&x2);
swap(&y1,&y2);
dx=-dx;
dy=-dy;
}
dy=abs(dy);
p=2*dy-dx;
while(x1<=x2)
{
fb_one_pixel(x1,y1,color);
x1++;
if(p<0)
{
p+=2*dy;
}
else
{ y1+=inc; p+=2*(dy-dx);
} } }
else { if(dy<0)
{ swap(&x1,&x2); swap(&y1,&y2);
dx=-dx; dy=-dy;
} dx=abs(dx); p=2*dx-dy;
while(y1<=y2) { fb_one_pixel(x1,y1,color);
y1++;
if(p<0)
{
p+=2*dx;
}
else
{
x1+=inc;
p+=2*(dx-dy);
}
} }
return 0;
int main(void)
{
FBDEV fbdev;
memset(&fbdev,0,sizeof(FBDEV));
strcpy(fbdev.dev,"/dev/fb0");
if (fb_open(&fbdev)==FALSE)
{
printf("open frame buffer error\n");
return;
}
fb_memset((void *)(fbdev.fb_mem + fbdev.fb_mem_offset),0,fbdev.fb_fix.smem_len);
//画点
fb_drawpixel(&fbdev,512,384,0x00FF0000);
fb_drawpixel(&fbdev,513,384,0x00FF0000);
fb_drawpixel(&fbdev,512,385,0x00FF0000);
fb_drawpixel(&fbdev,513,385,0x00FF0000);
//画垂直线
fb_drawvline(&fbdev,511,380,0x0000ff00);
fb_drawhline(&fbdev,380,200,0x000000ff);
fb_close(&fbdev);
getchar();
}
