tests/SkVxTest.cpp

/*
 * Copyright 2019 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#include "SkVx.h"
#include "Test.h"

using float2 = skvx::Vec<2,float>;
using float4 = skvx::Vec<4,float>;
using float8 = skvx::Vec<8,float>;

using double2 = skvx::Vec<2,double>;
using double4 = skvx::Vec<4,double>;
using double8 = skvx::Vec<8,double>;

using byte2 = skvx::Vec<2,uint8_t>;
using byte4 = skvx::Vec<4,uint8_t>;
using byte8 = skvx::Vec<8,uint8_t>;

using int2 = skvx::Vec<2,int32_t>;
using int4 = skvx::Vec<4,int32_t>;
using int8 = skvx::Vec<8,int32_t>;

using long2 = skvx::Vec<2,int64_t>;
using long4 = skvx::Vec<4,int64_t>;
using long8 = skvx::Vec<8,int64_t>;

DEF_TEST(SkVx, r) {
    static_assert(sizeof(float2) ==  8, "");
    static_assert(sizeof(float4) == 16, "");
    static_assert(sizeof(float8) == 32, "");

    static_assert(sizeof(byte2) == 2, "");
    static_assert(sizeof(byte4) == 4, "");
    static_assert(sizeof(byte8) == 8, "");

    {
        int4 mask = float4{1,2,3,4} < float4{1,2,4,8};
        REPORTER_ASSERT(r, mask[0] == int32_t( 0));
        REPORTER_ASSERT(r, mask[1] == int32_t( 0));
        REPORTER_ASSERT(r, mask[2] == int32_t(-1));
        REPORTER_ASSERT(r, mask[3] == int32_t(-1));

        REPORTER_ASSERT(r,  any(mask));
        REPORTER_ASSERT(r, !all(mask));
    }

    {
        long4 mask = double4{1,2,3,4} < double4{1,2,4,8};
        REPORTER_ASSERT(r, mask[0] == int64_t( 0));
        REPORTER_ASSERT(r, mask[1] == int64_t( 0));
        REPORTER_ASSERT(r, mask[2] == int64_t(-1));
        REPORTER_ASSERT(r, mask[3] == int64_t(-1));

        REPORTER_ASSERT(r,  any(mask));
        REPORTER_ASSERT(r, !all(mask));
    }

    REPORTER_ASSERT(r, min(float4{1,2,3,4}) == 1);
    REPORTER_ASSERT(r, max(float4{1,2,3,4}) == 4);

    REPORTER_ASSERT(r, all(int4{1,2,3,4,5} == int4{1,2,3,4}));
    REPORTER_ASSERT(r, all(int4{1,2,3,4}   == int4{1,2,3,4}));
    REPORTER_ASSERT(r, all(int4{1,2,3}     == int4{1,2,3,0}));
    REPORTER_ASSERT(r, all(int4{1,2}       == int4{1,2,0,0}));
    REPORTER_ASSERT(r, all(int4{1}         == int4{1,0,0,0}));
    REPORTER_ASSERT(r, all(int4(1)         == int4{1,1,1,1}));
    REPORTER_ASSERT(r, all(int4{}          == int4{0,0,0,0}));
    REPORTER_ASSERT(r, all(int4()          == int4{0,0,0,0}));

    REPORTER_ASSERT(r, all(int4{1,2,2,1} == min(int4{1,2,3,4}, int4{4,3,2,1})));
    REPORTER_ASSERT(r, all(int4{4,3,3,4} == max(int4{1,2,3,4}, int4{4,3,2,1})));

    REPORTER_ASSERT(r, all(if_then_else(float4{1,2,3,2} <= float4{2,2,2,2}, float4(42), float4(47))
                           == float4{42,42,47,42}));
}