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#include "Test.h"
#include "Sk4x.h"
#define ASSERT_EQ(a, b) REPORTER_ASSERT(r, a.equal(b).allTrue())
#define ASSERT_NE(a, b) REPORTER_ASSERT(r, a.notEqual(b).allTrue())
DEF_TEST(Sk4x_Construction, r) {
Sk4f uninitialized;
Sk4f zero(0,0,0,0);
Sk4f foo(1,2,3,4),
bar(foo),
baz = bar;
ASSERT_EQ(foo, bar);
ASSERT_EQ(bar, baz);
ASSERT_EQ(baz, foo);
}
struct AlignedFloats {
Sk4f forces16ByteAlignment; // On 64-bit machines, the stack starts 128-bit aligned,
float fs[5]; // but not necessarily so on 32-bit. Adding an Sk4f forces it.
};
DEF_TEST(Sk4x_LoadStore, r) {
AlignedFloats aligned;
// fs will be 16-byte aligned, fs+1 not.
float* fs = aligned.fs;
for (int i = 0; i < 5; i++) { // set to 5,6,7,8,9
fs[i] = float(i+5);
}
Sk4f foo = Sk4f::Load(fs);
Sk4f bar = Sk4f::LoadAligned(fs);
ASSERT_EQ(foo, bar);
foo = Sk4f::Load(fs+1);
ASSERT_NE(foo, bar);
foo.storeAligned(fs);
bar.store(fs+1);
REPORTER_ASSERT(r, fs[0] == 6 &&
fs[1] == 5 &&
fs[2] == 6 &&
fs[3] == 7 &&
fs[4] == 8);
}
DEF_TEST(Sk4x_Conversions, r) {
// Assuming IEEE floats.
Sk4f zerof(0,0,0,0);
Sk4i zeroi(0,0,0,0);
ASSERT_EQ(zeroi, zerof.cast<Sk4i>());
ASSERT_EQ(zeroi, zerof.reinterpret<Sk4i>());
ASSERT_EQ(zerof, zeroi.cast<Sk4f>());
ASSERT_EQ(zerof, zeroi.reinterpret<Sk4f>());
Sk4f twof(2,2,2,2);
Sk4i twoi(2,2,2,2);
ASSERT_EQ(twoi, twof.cast<Sk4i>());
ASSERT_NE(twoi, twof.reinterpret<Sk4i>());
ASSERT_EQ(twof, twoi.cast<Sk4f>());
ASSERT_NE(twof, twoi.reinterpret<Sk4f>());
ASSERT_EQ(Sk4i(0,0,0,0), Sk4f(0.5f, 0.49f, 0.51f, 0.99f).cast<Sk4i>());
ASSERT_EQ(Sk4i(1,1,1,1), Sk4f(1.5f, 1.49f, 1.51f, 1.99f).cast<Sk4i>());
}
DEF_TEST(Sk4x_Bits, r) {
ASSERT_EQ(Sk4i(0,0,0,0).bitNot(), Sk4i(-1,-1,-1,-1));
Sk4i a(2,3,4,5),
b(1,3,5,7);
ASSERT_EQ(Sk4i(0,3,4,5), a & b);
ASSERT_EQ(Sk4i(3,3,5,7), a | b);
}
DEF_TEST(Sk4x_Arith, r) {
ASSERT_EQ(Sk4f(4,6,8,10), Sk4f(1,2,3,4) + Sk4f(3,4,5,6));
ASSERT_EQ(Sk4f(-2,-2,-2,-2), Sk4f(1,2,3,4) - Sk4f(3,4,5,6));
ASSERT_EQ(Sk4f(3,8,15,24), Sk4f(1,2,3,4) * Sk4f(3,4,5,6));
ASSERT_EQ(Sk4f(-1,-2,-3,-4), -Sk4f(1,2,3,4));
float third = 1.0f/3.0f;
ASSERT_EQ(Sk4f(1*third, 0.5f, 0.6f, 2*third), Sk4f(1,2,3,4) / Sk4f(3,4,5,6));
ASSERT_EQ(Sk4i(4,6,8,10), Sk4i(1,2,3,4) + Sk4i(3,4,5,6));
ASSERT_EQ(Sk4i(-2,-2,-2,-2), Sk4i(1,2,3,4) - Sk4i(3,4,5,6));
ASSERT_EQ(Sk4i(3,8,15,24), Sk4i(1,2,3,4) * Sk4i(3,4,5,6));
}
DEF_TEST(Sk4x_ExplicitPromotion, r) {
ASSERT_EQ(Sk4f(2,4,6,8), Sk4f(1,2,3,4) * Sk4f(2.0f));
}
DEF_TEST(Sk4x_Sqrt, r) {
Sk4f squares(4, 16, 25, 121),
roots(2, 4, 5, 11);
// .sqrt() should be pretty precise.
Sk4f error = roots.subtract(squares.sqrt());
REPORTER_ASSERT(r, (error > Sk4f(-0.000001f)).allTrue());
REPORTER_ASSERT(r, (error < Sk4f(+0.000001f)).allTrue());
// .rsqrt() isn't so precise (for SSE), but should be pretty close.
error = roots.subtract(squares.multiply(squares.rsqrt()));
REPORTER_ASSERT(r, (error > Sk4f(-0.01f)).allTrue());
REPORTER_ASSERT(r, (error < Sk4f(+0.01f)).allTrue());
}
DEF_TEST(Sk4x_Comparison, r) {
ASSERT_EQ(Sk4f(1,2,3,4), Sk4f(1,2,3,4));
ASSERT_NE(Sk4f(4,3,2,1), Sk4f(1,2,3,4));
ASSERT_EQ(Sk4i(-1,-1,0,-1), Sk4f(1,2,5,4) == Sk4f(1,2,3,4));
ASSERT_EQ(Sk4i(-1,-1,-1,-1), Sk4f(1,2,3,4) < Sk4f(2,3,4,5));
ASSERT_EQ(Sk4i(-1,-1,-1,-1), Sk4f(1,2,3,4) <= Sk4f(2,3,4,5));
ASSERT_EQ(Sk4i(0,0,0,0), Sk4f(1,2,3,4) > Sk4f(2,3,4,5));
ASSERT_EQ(Sk4i(0,0,0,0), Sk4f(1,2,3,4) >= Sk4f(2,3,4,5));
ASSERT_EQ(Sk4i(1,2,3,4), Sk4i(1,2,3,4));
ASSERT_NE(Sk4i(4,3,2,1), Sk4i(1,2,3,4));
ASSERT_EQ(Sk4i(-1,-1,0,-1), Sk4i(1,2,5,4) == Sk4i(1,2,3,4));
ASSERT_EQ(Sk4i(-1,-1,-1,-1), Sk4i(1,2,3,4) < Sk4i(2,3,4,5));
ASSERT_EQ(Sk4i(-1,-1,-1,-1), Sk4i(1,2,3,4) <= Sk4i(2,3,4,5));
ASSERT_EQ(Sk4i(0,0,0,0), Sk4i(1,2,3,4) > Sk4i(2,3,4,5));
ASSERT_EQ(Sk4i(0,0,0,0), Sk4i(1,2,3,4) >= Sk4i(2,3,4,5));
}
DEF_TEST(Sk4x_MinMax, r) {
ASSERT_EQ(Sk4f(1,2,2,1), Sk4f::Min(Sk4f(1,2,3,4), Sk4f(4,3,2,1)));
ASSERT_EQ(Sk4f(4,3,3,4), Sk4f::Max(Sk4f(1,2,3,4), Sk4f(4,3,2,1)));
ASSERT_EQ(Sk4i(1,2,2,1), Sk4i::Min(Sk4i(1,2,3,4), Sk4i(4,3,2,1)));
ASSERT_EQ(Sk4i(4,3,3,4), Sk4i::Max(Sk4i(1,2,3,4), Sk4i(4,3,2,1)));
}
DEF_TEST(Sk4x_Swizzle, r) {
ASSERT_EQ(Sk4f(3,4,1,2), Sk4f(1,2,3,4).zwxy());
ASSERT_EQ(Sk4f(1,2,5,6), Sk4f::XYAB(Sk4f(1,2,3,4), Sk4f(5,6,7,8)));
ASSERT_EQ(Sk4f(3,4,7,8), Sk4f::ZWCD(Sk4f(1,2,3,4), Sk4f(5,6,7,8)));
ASSERT_EQ(Sk4i(3,4,1,2), Sk4i(1,2,3,4).zwxy());
ASSERT_EQ(Sk4i(1,2,5,6), Sk4i::XYAB(Sk4i(1,2,3,4), Sk4i(5,6,7,8)));
ASSERT_EQ(Sk4i(3,4,7,8), Sk4i::ZWCD(Sk4i(1,2,3,4), Sk4i(5,6,7,8)));
}
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