Function compareUnorm8

tests/ktxdiff/ktxdiff_main.cpp:244–257

};

CompareResult compareUnorm8(const char* rawLhs, const char* rawRhs, std::size_t rawSize, float tolerance) {
    const auto* lhs = reinterpret_cast<const uint8_t*>(rawLhs);
    const auto* rhs = reinterpret_cast<const uint8_t*>(rawRhs);
    const auto element_size = sizeof(uint8_t);
    const auto count = rawSize / element_size;

    for (std::size_t i = 0; i < count; ++i) {
        const auto diff = std::abs(static_cast<float>(lhs[i]) / 255.f - static_cast<float>(rhs[i]) / 255.f);
        if (diff > tolerance)
            return CompareResult{false, diff, i, i * element_size};
    }

    return CompareResult{};
}

CompareResult compareSFloat32(const char* rawLhs, const char* rawRhs, std::size_t rawSize, float tolerance) {
    const auto* lhs = reinterpret_cast<const float*>(rawLhs);