draw-column
wayland/arduino-tvout/draw-column
Fill a column between two rows.
draw-column
@/draw-column
Fill a column between two rows.
DEV@/tvout-device
A tvout device.
COLUMNnumber
The column that fill will be performed on.
Y0number
Edge 0 of the fill. Start fill from this row.
Y1number
Edge 1 of the fill. End fill at this row.
COLORnumber
The color of the fill. Options:
0 = black;
1 = white;
2 = invert.
UPDpulse
Update. Triggers draw column.
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);
uint16_t x0 = getValue<input_Y0>(ctx);
uint16_t x1 = getValue<input_Y1>(ctx);
uint8_t column = getValue<input_COLUMN>(ctx);
char color = getValue<input_COLOR>(ctx);
tv->draw_column(column, x0, x1, color);
emitValue<output_DONE>(ctx, 1);
}