encodeUCS7604_16bit_RGB()

template<typename InputIterator, typename OutputIterator>

void fl::encodeUCS7604_16bit_RGB	(	InputIterator	first,
		InputIterator	last,
		OutputIterator	out,
		const Gamma8 &	gamma )

Encode RGB pixels in UCS7604 16-bit format with gamma correction.

Template Parameters

InputIterator	Iterator yielding fl::array<uint8_t, 3> (RGB bytes)
OutputIterator	Output iterator accepting uint8_t

Parameters

first	Beginning of pixel range
last	End of pixel range
out	Output iterator for encoded bytes
gamma	Gamma8 LUT for 8-to-16 bit expansion

Note

Writes 6 bytes per pixel (R16_hi, R16_lo, G16_hi, G16_lo, B16_hi, B16_lo)

Definition at line 144 of file ucs7604.h.

                                                   {
    while (first != last) {
        const auto& pixel = *first;
 
        // Apply gamma correction for 16-bit output
        u8 rgb_in[3] = { pixel[0], pixel[1], pixel[2] };
        u16 rgb_out[3];
        gamma.convert(fl::span<const u8>(rgb_in, 3), fl::span<u16>(rgb_out, 3));
 
        // Write big-endian 16-bit values
        *out++ = rgb_out[0] >> 8;
        *out++ = rgb_out[0] & 0xFF;
        *out++ = rgb_out[1] >> 8;
        *out++ = rgb_out[1] & 0xFF;
        *out++ = rgb_out[2] >> 8;
        *out++ = rgb_out[2] & 0xFF;
        ++first;
    }
}

References gamma().

Referenced by encodeUCS7604().

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