Method fillArea

modules/drivers/it8951/it8951.js:180–201

(x, y, w, h, color)

		} while (true);
	}
	fillArea(x, y, w, h, color) {
		if (w & 3)
			throw new Error;

		if ((color < 0) || (color > 15))
			throw new Error;
	
		this.setTargetMemoryAddress(this._tar_memaddr);
        this.setArea(x, y, w, h);

		const pixels = new Uint16Array(w >> 2);
		pixels.fill(color | (color << 4) | (color << 8) | (color << 12));
		const buffer = pixels.buffer, spi = this.spi;

		this.select.write(0);
		spi.write(Uint16Array.of(0))
		while (h--)
			spi.write(buffer);
		this.select.write(1);

		this.writeCommand(IT8951_TCON_LD_IMG_END);
	}
	updateArea(x, y, w, h, mode) {
		if (UpdateMode.NONE === mode)
			return;