encodeP9813()

template<typename InputIterator, typename OutputIterator>

void fl::encodeP9813	(	InputIterator	first,
		InputIterator	last,
		OutputIterator	out )

Encode pixel data in P9813 format.

Template Parameters

InputIterator	Iterator yielding fl::array<u8, 3> (3 bytes in wire order)
OutputIterator	Output iterator accepting uint8_t

Parameters

first	Iterator to first pixel
last	Iterator past last pixel
out	Output iterator for encoded bytes

Note

P9813 uses BGR wire order: pixel[0]=Blue, pixel[1]=Green, pixel[2]=Red

Definition at line 33 of file p9813.h.

                                                                                          {
    // Start boundary: 4 bytes of 0x00
    *out++ = 0x00;
    *out++ = 0x00;
    *out++ = 0x00;
    *out++ = 0x00;
 
    // LED data: flag + BGR
    while (first != last) {
        const fl::array<u8, BYTES_PER_PIXEL_RGB>& pixel = *first;
 
        // P9813 flag byte: 0xC0 | checksum (BGR order: 0=B, 1=G, 2=R)
        u8 flag = p9813FlagByte(pixel[2], pixel[1], pixel[0]);  // r, g, b
 
        *out++ = flag;
        *out++ = pixel[0];  // Index 0 (BGR order: Blue)
        *out++ = pixel[1];  // Index 1 (BGR order: Green)
        *out++ = pixel[2];  // Index 2 (BGR order: Red)
 
        ++first;
    }
 
    // End boundary: 4 bytes of 0x00
    *out++ = 0x00;
    *out++ = 0x00;
    *out++ = 0x00;
    *out++ = 0x00;
}

References FL_NOEXCEPT, and p9813FlagByte().

Referenced by fl::PixelIterator::writeP9813().

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