time_alpha8()

uint8_t fl::time_alpha8	(	uint32_t	now,
		uint32_t	start,
		uint32_t	end )

Definition at line 8 of file time_alpha.cpp.

                                                                {
    if (now < start) {
        return 0;
    }
    if (now > end) {
        return 255;
    }
    uint32_t elapsed = now - start;
    uint32_t total = end - start;
    uint32_t out = (elapsed * 255) / total;
    if (out > 255) {
        out = 255;
    }
    return static_cast<uint8_t>(out);
}

Referenced by fl::TimeLinear::update(), and fl::TimeRamp::update().

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