draw-pixel
wayland/arduino-tvout/draw-pixel
Set the color of a pixel.
draw-pixel
@/draw-pixel
Set the color of a pixel.
DEV@/tvout-device
A tvout device.
Xnumber
The x coordinate of the pixel.
Ynumber
The y coordinate of the pixel.
COLORnumber
The color of the pixel. Options:
0 = black;
1 = white;
2 = invert.
UPDpulse
Update. Triggers set pixel.
DONEpulse
Pulse on completion.
C++ implementation
struct State {
};
{{ GENERATED_CODE }}
void evaluate(Context ctx) {
// The node responds only if there is an input pulse
if (!isInputDirty<input_UPD>(ctx))
return;
// Get a pointer to the `TVout` class instance
auto tv = getValue<input_DEV>(ctx);
uint8_t x = getValue<input_X>(ctx);
uint8_t y = getValue<input_Y>(ctx);
char color = getValue<input_COLOR>(ctx);
tv->set_pixel(x, y, color);
emitValue<output_DONE>(ctx, 1);
}