test_scale_u8_16_full()

bool autoresearch::simd_check::test_scale_u8_16_full ( )

inline

Definition at line 196 of file AutoResearchSimd.h.

                                    {
    // scale by 255 should give approximately the original value
    uint8_t a[16] = {255,128,64,32, 10,200,100,50, 255,128,64,32, 10,200,100,50};
    uint8_t output[16] = {0};
    store_u8_16(output, scale_u8_16(load_u8_16(a), 255));
    for (int i = 0; i < 16; i++) {
        int expected = (a[i] * 255) / 256;
        int diff = (int)output[i] - expected;
        if (diff < -1 || diff > 1) return false;
    }
    return true;
}

Referenced by getTests().

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