writeLPD8806Wide()

template<typename OutputIterator>

void fl::PixelIterator::writeLPD8806Wide ( OutputIterator back_ins )

inline

LPD8806 over a colour-managed channel's 16-bit drives, quantized once to the chip's 7 bits (B3: one final quantization).

The 8-bit path rounds to 8 bits and then shifts, which is two, and its encoder also forces the low bit on every lit value below 254. Same framing as encodeLPD8806: three 0x80 | code bytes per LED in wire order, then (n * 3 + 63) / 64 zero latch bytes.

Definition at line 581 of file pixel_iterator.h.

                                                                {
        fl::size num_leds = 0;
        while (has(1)) {
            u16 w[3];
            loadAndScaleRGB16(&w[0], &w[1], &w[2]);  // wire order
            for (int c = 0; c < 3; ++c) {
                const u32 code = (static_cast<u32>(w[c]) * 127u + 32767u) / 65535u;
                *back_ins++ = static_cast<u8>(0x80 | code);
            }
            stepDithering();
            advanceData();
            ++num_leds;
        }
        const fl::size latch = (num_leds * 3 + 63) / 64;
        for (fl::size i = 0; i < latch; ++i) {
            *back_ins++ = 0x00;
        }
    }

References advanceData(), fl::FL_NO_EXCEPT, has(), loadAndScaleRGB16(), and stepDithering().

Here is the call graph for this function: