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Introduce gte float

This commit is contained in:
Jaby 2024-04-06 21:07:32 -05:00
parent df0a764fd2
commit f2ea2f04f0
3 changed files with 32 additions and 4 deletions
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10
include/PSX/GTE/gte_types.hpp
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@ -20,6 +20,10 @@ namespace JabyEngine {
return VECTOR{.x = x, .y = y, .z = z, .pad = 0};
}
static constexpr VECTOR create(gte_float x, gte_float y, gte_float z) {
return VECTOR{.x = static_cast<T>(x), .y = static_cast<T>(y), .z = static_cast<T>(z)};
}
template<typename S>
static constexpr VECTOR from(const GPU::Position<S>& pos) {
return VECTOR::create(static_cast<T>(pos.x), static_cast<T>(pos.y), 0);
@ -39,9 +43,9 @@ namespace JabyEngine {
static constexpr ROTMATRIX identity() {
return ROTMATRIX{.matrix = {
{4096, 0, 0},
{0, 4096, 0},
{0, 0, 4096}
{static_cast<int16_t>(gte_float::one()), 0, 0},
{0, static_cast<int16_t>(gte_float::one()), 0},
{0, 0, static_cast<int16_t>(gte_float::one())}
}
};
}

24
include/math.hpp
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@ -50,6 +50,30 @@ static constexpr deg_t operator""_deg(long double degree) {
return deg_t::from_tenth_degree((degree*10.0));
}
struct gte_float : public math::raw_math<gte_float> {
int32_t raw;
static constexpr gte_float from_double(double value) {
return gte_float{.raw = static_cast<int32_t>(4096.0*value)};
}
static constexpr gte_float one() {
return gte_float::from_double(1.0);
}
constexpr explicit operator int32_t() const {
return this->raw;
}
constexpr explicit operator int16_t() const {
return static_cast<int16_t>(this->raw);
}
};
static constexpr gte_float operator""_gf(long double value) {
return gte_float::from_double(value);
}
using sin_t = int32_t;
using cos_t = int32_t;

2
src/Library/src/BootLoader/start_boot.cpp
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@ -16,7 +16,7 @@ namespace JabyEngine {
static void test_gte_scale() {
auto matrix = GTE::ROTMATRIX::identity();
GTE::scale_matrix(matrix, GTE::VECTOR::create(4096*2, 4096*2, 4096*2));
GTE::scale_matrix(matrix, GTE::VECTOR::create(1.5_gf, 2.0_gf, 1.0_gf));
printf("|%i|%i|%i|\n", matrix.matrix[0][0], matrix.matrix[0][1], matrix.matrix[0][2]);
printf("|%i|%i|%i|\n", matrix.matrix[1][0], matrix.matrix[1][1], matrix.matrix[1][2]);
printf("|%i|%i|%i|\n", matrix.matrix[2][0], matrix.matrix[2][1], matrix.matrix[2][2]);