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tyrav2 init

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h4570
2022-07-17 10:21:35 +02:00
parent 44c1ee4fe8
commit c8b22ff331
249 changed files with 18187 additions and 0 deletions
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engine/src/math/vec4.cpp
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/*
# ______ ____ ___
# | \/ ____| |___|
# | | | \ | |
#-----------------------------------------------------------------------
# Copyright 2022, tyra - https://github.com/h4570/tyra
# Licenced under Apache License 2.0
# Sandro Sobczyński <sandro.sobczynski@gmail.com>
*/
#include "math/vec4.hpp"
namespace Tyra {
void Vec4::set(const float& t_x, const float& t_y, const float& t_z,
const float& t_w) {
x = t_x;
y = t_y;
z = t_z;
w = t_w;
}
Vec4 Vec4::operator+(const Vec4& v) const {
Vec4 res;
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t"
"lqc2 $vf5, 0x0(%2) \n\t"
"vadd.xyz $vf6, $vf4, $vf5 \n\t"
"sqc2 $vf6, 0x0(%0) \n\t"
:
: "r"(res.xyzw), "r"(this->xyzw), "r"(v.xyzw));
return res;
}
Vec4 Vec4::operator-(const Vec4& v) const {
Vec4 res;
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t"
"lqc2 $vf5, 0x0(%2) \n\t"
"vsub.xyz $vf6, $vf4, $vf5 \n\t"
"sqc2 $vf6, 0x0(%0) \n\t"
:
: "r"(res.xyzw), "r"(this->xyzw), "r"(v.xyzw));
return res;
}
Vec4 Vec4::operator*(const Vec4& v) const {
Vec4 res;
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t"
"lqc2 $vf5, 0x0(%2) \n\t"
"vmul.xyzw $vf6, $vf4, $vf5 \n\t"
"sqc2 $vf6, 0x0(%0) \n\t"
:
: "r"(res.xyzw), "r"(this->xyzw), "r"(v.xyzw));
return res;
}
Vec4 Vec4::operator*(const float& v) const {
Vec4 res;
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t"
"mfc1 $8, %2 \n\t"
"qmtc2 $8, $vf5 \n\t"
"vmulx.xyz $vf6, $vf4, $vf5 \n\t"
"sqc2 $vf6, 0x0(%0) \n\t"
:
: "r"(res.xyzw), "r"(this->xyzw), "f"(v));
res.w = w; // Comment below. TODO: fix it in asm
return res;
}
Vec4 Vec4::operator/(const float& v) const {
return Vec4(x / v, y / v, z / v, w);
}
void Vec4::operator+=(const Vec4& v) {
asm volatile(
"lqc2 $vf4, 0x0(%0) \n\t"
"lqc2 $vf5, 0x0(%1) \n\t"
"vadd.xyz $vf4, $vf4, $vf5 \n\t"
"sqc2 $vf4, 0x0(%0) \n\t"
:
: "r"(this->xyzw), "r"(v.xyzw));
}
void Vec4::operator*=(const Vec4& v) {
asm volatile(
"lqc2 $vf4, 0x0(%0) \n\t"
"lqc2 $vf5, 0x0(%1) \n\t"
"vmul.xyzw $vf6, $vf4, $vf5 \n\t"
"sqc2 $vf6, 0x0(%0) \n\t"
:
: "r"(this->xyzw), "r"(v.xyzw));
}
void Vec4::operator*=(const float& v) {
// Hmm... we don't want to modify W in most of the cases
// It should be touched only during rendering process
auto tempW = w;
asm volatile(
"lqc2 $vf4, 0x0(%0) \n\t"
"mfc1 $8, %1 \n\t"
"qmtc2 $8, $vf5 \n\t"
"vmulx.xyz $vf4, $vf4, $vf5 \n\t"
"sqc2 $vf4, 0x0(%0) \n\t"
:
: "r"(this->xyzw), "f"(v));
w = tempW;
}
void Vec4::operator/=(const float& v) {
x /= v;
y /= v;
z /= v;
}
void Vec4::operator=(const Vec4& v) { copy(this, v); }
Vec4 Vec4::operator-(void) const { return Vec4(-x, -y, -z); }
void Vec4::copy(Vec4* out, const float* in) {
asm volatile(
"lqc2 $vf1, 0x00(%1) \n"
"sqc2 $vf1, 0x00(%0) \n"
:
: "r"(out->xyzw), "r"(in));
}
Vec4 Vec4::cross(const Vec4& v) const {
Vec4 res;
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t"
"lqc2 $vf5, 0x0(%2) \n\t"
"vopmula.xyz $ACC, $vf4, $vf5 \n\t"
"vopmsub.xyz $vf8, $vf5, $vf4 \n\t"
"vsub.w $vf8, $vf0, $vf0 \n\t"
"sqc2 $vf8, 0x0(%0) \n\t"
:
: "r"(res.xyzw), "r"(this->xyzw), "r"(v.xyzw));
return res;
}
void Vec4::rotateZ(const int& angle) {
auto s = Math::sin(angle);
auto c = Math::cos(angle);
x = x * c - y * s;
y = x * s + y * c;
}
int Vec4::getRelativeCosBetween(const Vec4& v) const {
return dot3(v) / (length() * v.length());
}
int Vec4::getRelativeAngleBetween(const Vec4& v) const {
return acos(getRelativeCosBetween(v));
}
float Vec4::innerProduct(const Vec4& v) const {
float result;
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t"
"lqc2 $vf5, 0x0(%2) \n\t"
"vmul.xyz $vf6, $vf4, $vf5 \n\t"
"vaddy.x $vf6, $vf6, $vf6 \n\t"
"vaddz.x $vf6, $vf6, $vf6 \n\t"
"qmfc2 $2, $vf6 \n\t"
"mtc1 $2, %0 \n\t"
: "=f"(result)
: "r"(this->xyzw), "r"(v.xyzw));
return result;
}
float Vec4::length() const {
float result;
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t"
"vmul.xyz $vf5, $vf4, $vf4 \n\t"
"vaddy.x $vf5, $vf5, $vf5 \n\t"
"vaddz.x $vf5, $vf5, $vf5 \n\t"
"vsqrt $Q , $vf5x \n\t"
"vwaitq \n\t"
"vaddq.x $vf8, $vf0, $Q \n\t"
"qmfc2 $2, $vf8 \n\t"
"mtc1 $2, %0 \n\t"
: "=f"(result)
: "r"(this->xyzw));
return result;
}
void Vec4::normalize() {
asm volatile(
"lqc2 $vf4, 0x0(%0) \n\t"
"vmul.xyz $vf5, $vf4, $vf4 \n\t"
"vaddy.x $vf5, $vf5, $vf5 \n\t"
"vaddz.x $vf5, $vf5, $vf5 \n\t"
"vrsqrt $Q, $vf0w, $vf5x \n\t"
"vwaitq \n\t"
"vsub.xyz $vf6, $vf0, $vf0 \n\t"
"vaddw.xyz $vf6, $vf6, $vf4 \n\t"
"vwaitq \n\t"
"vmulq.xyz $vf6, $vf4, $Q \n\t"
"sqc2 $vf6, 0x0(%0) \n\t"
:
: "r"(this->xyzw));
}
float Vec4::distanceTo(const Vec4& v) const {
float result;
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t"
"lqc2 $vf5, 0x0(%2) \n\t"
"vsub.xyz $vf6, $vf4, $vf5 \n\t"
"vmul.xyz $vf7, $vf6, $vf6 \n\t"
"vaddy.x $vf7, $vf7, $vf7 \n\t"
"vaddz.x $vf7, $vf7, $vf7 \n\t"
"vsqrt $Q , $vf7x \n\t"
"vwaitq \n\t"
"vaddq.x $vf8, $vf0, $Q \n\t"
"qmfc2 $2, $vf8 \n\t"
"mtc1 $2, %0 \n\t"
: "=f"(result)
: "r"(this->xyzw), "r"(v.xyzw));
return result;
}
u8 Vec4::shouldBeBackfaceCulled(const Vec4* cameraPos, const Vec4* v0,
const Vec4* v1, const Vec4* v2) {
float dot;
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t" // $vf4 = cameraPos
"lqc2 $vf5, 0x0(%2) \n\t" // $vf5 = v0
"lqc2 $vf6, 0x0(%3) \n\t" // $vf6 = v1
"lqc2 $vf7, 0x0(%4) \n\t" // $vf7 = v2
"vsub.xyz $vf8, $vf7, $vf5 \n\t" // $vf8 = $vf7(v2) - $vf5(v0)
"vsub.xyz $vf9, $vf6, $vf5 \n\t" // $vf9 = $vf6(v1) - $vf5(v0)
"vopmula.xyz $ACC, $vf8, $vf9 \n\t" // $vf6 = cross($vf8, $vf9)
"vopmsub.xyz $vf6, $vf9, $vf8 \n\t"
"vsub.w $vf6, $vf6, $vf6 \n\t"
"vsub.xyz $vf7, $vf5, $vf4 \n\t" // $vf7 = $vf5(v0) - $vf4(cameraPos)
"vmul.xyz $vf5, $vf7, $vf6 \n\t" // $vf5 = dot($vf7, $vf6)
"vaddy.x $vf5, $vf5, $vf5 \n\t"
"vaddz.x $vf5, $vf5, $vf5 \n\t"
"qmfc2 $2, $vf5 \n\t" // store result on `dot` variable
"mtc1 $2, %0 \n\t"
: "=f"(dot)
: "r"(cameraPos->xyzw), "r"(v0->xyzw), "r"(v1->xyzw), "r"(v2->xyzw));
return dot <= 0.0F;
}
void Vec4::lerp(const Vec4& v1, const Vec4& v2, const float& interp) {
setLerp(this, v1, v2, interp);
}
Vec4 Vec4::getByLerp(const Vec4& v1, const Vec4& v2, const float& interp) {
Vec4 result;
setLerp(&result, v1, v2, interp);
return result;
}
void Vec4::setLerp(Vec4* output, const Vec4& v1, const Vec4& v2,
const float& interp) {
asm volatile(
"lqc2 $vf4, 0x0(%1) \n\t" // $vf4 = v1
"lqc2 $vf5, 0x0(%2) \n\t" // $vf5 = v2
"mfc1 $8, %3 \n\t" // $vf6 = t
"qmtc2 $8, $vf6 \n\t" // lerp:
"vsub.xyzw $vf7, $vf5, $vf4 \n\t" // $vf7 = v2 - v1
"vmulx.xyzw $vf8, $vf7, $vf6 \n\t" // $vf8 = $vf7 * t
"vadd.xyzw $vf9, $vf8, $vf4 \n\t" // $vf9 = $vf8 + $vf4
"sqc2 $vf9, 0x0(%0) \n\t" // v0 = $vf9
:
: "r"(&output->xyzw), "r"(&v1.xyzw), "r"(&v2.xyzw), "f"(interp));
}
void Vec4::print() const {
auto text = getPrint(nullptr);
printf("%s\n", text.c_str());
}
void Vec4::print(const char* name) const {
auto text = getPrint(name);
printf("%s\n", text.c_str());
}
std::string Vec4::getPrint(const char* name) const {
std::stringstream res;
if (name) {
res << name << "(";
} else {
res << "Vec4(";
}
res << std::fixed << std::setprecision(4);
res << x << ", " << y << ", " << z << ", " << w << ")";
return res.str();
}
} // namespace Tyra