/*
* call-seq:
* marshal_load(string) -> self
*
* loads a string into an Vector2.
*/
VALUE _marshal_load(VALUE self,VALUE load)
{
VALUE result = rb_funcall(load,rb_intern("unpack"),1,rb_str_new2("dd"));
_set_y(self,rb_ary_pop(result));
_set_x(self,rb_ary_pop(result));
return self;
}
void pcd8544_clear(pcd8544_t *dev)
{
_set_x(dev, 0);
_set_y(dev, 0);
for (int i = 0; i < PCD8544_RES_X * PCD8544_ROWS; i++) {
_write(dev, MODE_DTA, 0x00);
}
}
void pcd8544_write_img(pcd8544_t *dev, const char img[])
{
/* set initial position */
_set_x(dev, 0);
_set_y(dev, 0);
/* write image data to display */
for (int i = 0; i < (PCD8544_RES_X * PCD8544_RES_Y / 8); i++) {
_write(dev, MODE_DTA, img[i]);
}
}
void pcd8544_write_c(pcd8544_t *dev, uint8_t x, uint8_t y, char c)
{
/* check position */
if (x >= PCD8544_COLS || y >= PCD8544_ROWS) {
return ;
}
/* set position */
_set_x(dev, x * CHAR_WIDTH);
_set_y(dev, y);
/* write char */
for (int i = 0; i < CHAR_WIDTH - 1; i++) {
_write(dev, MODE_DTA, _ascii[c - ASCII_MIN][i]);
}
_write(dev, MODE_DTA, 0x00);
}