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Add naive implementation and tests

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This commit is contained in:
Artem Zyktin 2026-06-04 02:31:56 +08:00
parent 7f0d686a64
commit 0047c7b6c6
3 changed files with 41 additions and 0 deletions
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5
src/naive/naive_vec4.h
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@ -74,6 +74,11 @@ private:
return std::sqrt(dot3(v, v));
}
[[nodiscard]] inline float magnitude3_sq(vec4 v) noexcept
{
return dot3(v, v);
}
[[nodiscard]] inline vec4 norm3(vec4 v) noexcept
{
const float inv = 1.0f / magnitude3(v); // normalize xyz, keep w

18
src/tests/naive_tests.cpp
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@ -123,6 +123,24 @@ TEST(naive_vec4, magnitude_b)
EXPECT_FLOAT_EQ(check, result);
}
TEST(naive_vec4, magnitude3_sq_a)
{
vec4 a = { 1.0f, 0.0f, 0.0f, 0.0f };
float check = 1.0f;
float result = magnitude3_sq(a);
EXPECT_FLOAT_EQ(check, result);
}
TEST(naive_vec4, magnitude3_sq_b)
{
vec4 a = { 1.0f, 0.0f, 1.0f, 1.0f };
float check = 2.0f;
float result = magnitude3_sq(a);
EXPECT_FLOAT_EQ(check, result);
}
TEST(naive_vec4, expression_a)
{
vec4 a = { 1.0f, 1.0f, 1.0f, 1.0f };

18
src/tests/vec4_tests.cpp
View File

@ -121,6 +121,24 @@ TEST(vec4, magnitude_b)
EXPECT_FLOAT_EQ(check, result);
}
TEST(vec4, magnitude3_sq_a)
{
vec4 a = { 1.0f, 0.0f, 0.0f, 0.0f };
float check = 1.0f;
float result = magnitude3_sq(a);
EXPECT_FLOAT_EQ(check, result);
}
TEST(vec4, magnitude3_sq_b)
{
vec4 a = { 1.0f, 0.0f, 1.0f, 1.0f };
float check = 2.0f;
float result = magnitude3_sq(a);
EXPECT_FLOAT_EQ(check, result);
}
TEST(vec4, expression_a)
{
vec4 a = { 1.0f, 1.0f, 1.0f, 1.0f };