draw-pixel
wayland/vidor-graphics/draw-pixel
Draw a pixel.
draw-pixel
@/draw-pixel
Draw a pixel.
GFX@/gfx-device
A Vidor graphics device.
Xnumber
X coordinate.
Ynumber
Y coordinate.
Colorxod/color/color
Color of pixel.
Alphanumber
Alpha compositing. Takes a value from 0 to 255.
UPDpulse
Update
Donepulse
Pulse on completion.
C++ implementation
#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD
node {
void evaluate(Context ctx) {
if (!isInputDirty<input_UPD>(ctx))
return;
auto gfx = getValue<input_GFX>(ctx);
auto color = getValue<input_Color>(ctx);
uint32_t color32 = gfx->Color(color.r, color.g, color.b);
gfx->drawLine(
getValue<input_X>(ctx),
getValue<input_Y>(ctx),
color32,
getValue<input_Alpha>(ctx));
emitValue<output_Done>(ctx, 1);
}
}