draw-row
wayland/arduino-tvout/draw-row
Fill a row between two columns.
draw-row
@/draw-row
Fill a row between two columns.
DEV@/tvout-device
A tvout device.
ROWnumber
The row that fill will be performed on.
X0number
Edge 0 of the fill. Start fill from this column.
X1number
Edge 1 of fill. End fill at this column.
COLORnumber
The color of the fill. Options:
0 = black;
1 = white;
2 = invert.
UPDpulse
Update. Triggers draw row.
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_X0>(ctx);
uint16_t x1 = getValue<input_X1>(ctx);
uint8_t row = getValue<input_ROW>(ctx);
char color = getValue<input_COLOR>(ctx);
tv->draw_row(row, x0, x1, color);
emitValue<output_DONE>(ctx, 1);
}