test_blend_u8_16_endpoints()

bool autoresearch::simd_check::test_blend_u8_16_endpoints ( )

inline

Definition at line 220 of file AutoResearchSimd.h.

                                         {
    // amount=0 -> all a, amount=255 -> ~all b
    uint8_t a[16] = {100,100,100,100, 100,100,100,100, 100,100,100,100, 100,100,100,100};
    uint8_t b[16] = {200,200,200,200, 200,200,200,200, 200,200,200,200, 200,200,200,200};
    uint8_t output0[16] = {0};
    uint8_t output255[16] = {0};
    store_u8_16(output0, blend_u8_16(load_u8_16(a), load_u8_16(b), 0));
    store_u8_16(output255, blend_u8_16(load_u8_16(a), load_u8_16(b), 255));
    for (int i = 0; i < 16; i++) {
        if (output0[i] != 100) return false;  // amount=0 -> a
        int diff = (int)output255[i] - 200;
        if (diff < -2 || diff > 2) return false;  // amount=255 -> ~b
    }
    return true;
}

Referenced by getTests().

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