void lcd_draw_circle(uint16 x, uint16 y, uint16 r, uint16 color)
{
int a,b;
int di;
a=0;b=r;
di=3-(r<<1);
while(a<=b)
{
lcd_set_pixel(x-b,y-a,color); //3
lcd_set_pixel(x+b,y-a,color); //0
lcd_set_pixel(x-a,y+b,color); //1
lcd_set_pixel(x-b,y-a,color); //7
lcd_set_pixel(x-a,y-b,color); //2
lcd_set_pixel(x+b,y+a,color); //4
lcd_set_pixel(x+a,y-b,color); //5
lcd_set_pixel(x+a,y+b,color); //6
lcd_set_pixel(x-b,y+a,color);
a++;
if(di<0)di +=4*a+6;
else
{
di+=10+4*(a-b);
b--;
}
lcd_set_pixel(x+a,y+b,color);
}
}
void demo_pixel() {
printf("Demo pixel\n");
char key;
clear_screen();
while (1) {
lcd_set_pixel(rand()%130, rand()%130, colors[rand()%10], display);
lcd_set_pixel(rand()%130, rand()%130, colors[rand()%10], display);
lcd_set_pixel(rand()%130, rand()%130, colors[rand()%10], display);
lcd_set_pixel(rand()%130, rand()%130, colors[rand()%10], display);
key = get_key();
if (key == QUIT)
break;
}
}
void lcd_retangulo(uint16_t color,uint8_t x,uint8_t dx,uint8_t y,uint8_t dy)
{
uint8_t index_x,index_y;
for(index_x = x;index_x <= x+dx ; index_x++)
for(index_y = y; index_y <= y+dy; index_y++)
lcd_set_pixel(color,index_x,index_y);
}
void lcd_circulo(uint16_t color,uint8_t xc,uint8_t yc,uint8_t raio)
{
uint8_t index_x = xc,index_y = yc;
// for(index_x = xc;index_x <= (int)fabs(sqrt((raio*raio) - (index_y*index_y)));index_x++)
// for(index_y = yc;index_y <= (int)fabs(sqrt((raio*raio) - (index_x*index_x)));index_y++)
lcd_set_pixel(color,index_x,index_y);
}
T_VOID Fwl_SetPixel(T_U16 x, T_U16 y, T_U16 color)
{
if (Lcd_Lock)
{
return;
}
lcd_set_pixel(x, y, color);
}
/**
* \brief Toggle pixel (icon) in LCD display memory.
*
* This function toggles a pixel in LCD (icon) display memory. If a parameter
* is out of range, then the function doesn't toggle any bit.
*
* \param pix_com Pixel coordinate - COMx - of the pixel (icon).
* \param pix_seg Pixel coordinate - SEGy - of the pixel (icon).
*/
void lcd_tgl_pixel(uint8_t pix_com, uint8_t pix_seg)
{
if ((pix_com < LCD_MAX_NR_OF_COM) && (pix_seg < LCD_MAX_NBR_OF_SEG)) {
uint8_t pixels = *lcd_get_pixel_register(pix_com, pix_seg);
if (pixels & (1 << (pix_seg % 8))) {
lcd_clear_pixel(pix_com, pix_seg);
} else {
lcd_set_pixel(pix_com, pix_seg);
}
}
}
void lcd_draw_line(uint16 x1, uint16 x2, uint16 y1, uint16 y2, uint16 color)
{
if((x1 == x2) || (y1 == y2)){
lcd_draw_rect(x1,x2,y1,y2,color,1);
}else{
uint16 t;
int xerr=0,yerr=0,delta_x,delta_y,distance;
int incx,incy,uRow,uCol;
delta_x=x2-x1;
delta_y=y2-y1;
uRow=x1;
uCol=y1;
if(delta_x>0)incx=1;
else if(delta_x==0)incx=0;
else {incx=-1;delta_x=-delta_x;}
if(delta_y>0)incy=1;
else if(delta_y==0)incy=0;
else{incy=-1;delta_y=-delta_y;}
if( delta_x>delta_y)distance=delta_x;
else distance=delta_y;
for(t=0;t<=distance+1;t++ )
{
lcd_set_pixel(uRow,uCol, color);
xerr+=delta_x ;
yerr+=delta_y ;
if(xerr>distance)
{
xerr-=distance;
uRow+=incx;
}
if(yerr>distance)
{
yerr-=distance;
uCol+=incy;
}
}
}
}
