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Match CAABox::GetTransformedAABox, minor fixes start CMetroidModelInstance

This commit is contained in:
Phillip Stephens 2022-10-09 13:54:18 -07:00
parent 76c4802efb
commit a31407c69c
6 changed files with 63 additions and 14 deletions
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12
asm/WorldFormat/CMetroidModelInstance.s
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@ -20,13 +20,13 @@
/* 802A27AC 0029F70C 80 04 00 00 */ lwz r0, 0(r4)
/* 802A27B0 0029F710 90 03 00 00 */ stw r0, 0(r3)
/* 802A27B4 0029F714 38 77 00 04 */ addi r3, r23, 4
/* 802A27B8 0029F718 48 00 01 65 */ bl nullsub_30
/* 802A27B8 0029F718 48 00 01 65 */ bl TransformFromData__FPCv
/* 802A27BC 0029F71C 7C 64 1B 78 */ mr r4, r3
/* 802A27C0 0029F720 38 79 00 04 */ addi r3, r25, 4
/* 802A27C4 0029F724 48 07 03 B1 */ bl __ct__12CTransform4fFRC12CTransform4f
/* 802A27C8 0029F728 38 61 00 08 */ addi r3, r1, 8
/* 802A27CC 0029F72C 38 97 00 34 */ addi r4, r23, 0x34
/* 802A27D0 0029F730 48 00 00 F9 */ bl sub_802a28c8
/* 802A27D0 0029F730 48 00 00 F9 */ bl BoundingBoxFromData__FPCv
/* 802A27D4 0029F734 C0 01 00 08 */ lfs f0, 8(r1)
/* 802A27D8 0029F738 D0 19 00 34 */ stfs f0, 0x34(r25)
/* 802A27DC 0029F73C C0 01 00 0C */ lfs f0, 0xc(r1)
@ -95,8 +95,8 @@ lbl_802A289C:
/* 802A28C0 0029F820 38 21 00 50 */ addi r1, r1, 0x50
/* 802A28C4 0029F824 4E 80 00 20 */ blr
.global sub_802a28c8
sub_802a28c8:
.global BoundingBoxFromData__FPCv
BoundingBoxFromData__FPCv:
/* 802A28C8 0029F828 94 21 FF E0 */ stwu r1, -0x20(r1)
/* 802A28CC 0029F82C C0 24 00 00 */ lfs f1, 0(r4)
/* 802A28D0 0029F830 C0 A4 00 04 */ lfs f5, 4(r4)
@ -119,7 +119,8 @@ sub_802a28c8:
/* 802A2914 0029F874 38 21 00 20 */ addi r1, r1, 0x20
/* 802A2918 0029F878 4E 80 00 20 */ blr
nullsub_30:
.global TransformFromData__FPCv
TransformFromData__FPCv:
/* 802A291C 0029F87C 4E 80 00 20 */ blr
.section .rodata
@ -129,4 +130,3 @@ lbl_803D6018:
# ROM: 0x3D3018
.asciz "??(??)"
.balign 4

6
include/Kyoto/Basics/CBasics.hpp
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@ -6,6 +6,12 @@
namespace CBasics {
void Init();
char* Stringize(const char* fmt, ...);
inline void SwapBytes(uchar* v) {}
inline float SwapBytes(float f) {
u8* tmp = reinterpret_cast<u8*>(&f);
SwapBytes(tmp);
return *reinterpret_cast<float*>(tmp);
}
}; // namespace CBasics
#endif // _CBASICS

4
include/Kyoto/Math/CTransform4f.hpp
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@ -54,7 +54,9 @@ public:
inline const CVector3f& GetRow(EDimX dim) const { return m0; }
inline const CVector3f& GetRow(EDimY dim) const { return m1; }
inline const CVector3f& GetRow(EDimZ dim) const { return m2; }
inline const CVector3f& GetRow(int i) const { return *(&m0 + i); }
inline const CVector3f& GetRow(int i) const {
return *(reinterpret_cast< const CVector3f* >(reinterpret_cast< const float* >(&m0) + i * 4));
}
// GetUp__12CTransform4fCFv
static CTransform4f LookAt(const CVector3f& pos, const CVector3f& lookPos,
const CVector3f& up = CVector3f::Up());

18
include/WorldFormat/CMetroidModelInstance.hpp Normal file
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@ -0,0 +1,18 @@
#ifndef _CMETROIDMODELINSTANCE
#define _CMETROIDMODELINSTANCE
#include "Kyoto/Math/CTransform4f.hpp"
#include "Kyoto/Math/CAABox.hpp"
#include "rstl/vector.hpp"
class CMetroidModelInstance {
public:
CMetroidModelInstance(const void* header, const void* firstGeom,
const void* positions, const void* normals,
const void* colors, const void* uvs,
const void* packedUvs,
const rstl::vector< void* >& surfaces);
};
#endif // _CMETROIDMODELINSTANCE

15
src/Kyoto/Math/CAABox.cpp
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@ -154,7 +154,6 @@ bool CAABox::InsidePlane(const CPlane& plane) const {
return !(CVector3f::Dot(plane.GetNormal(), vec) >= plane.GetConstant());
}
// TODO non-matching
CAABox CAABox::GetTransformedAABox(const CTransform4f& xf) const {
if (&xf == &CTransform4f::Identity()) {
return *this;
@ -163,16 +162,18 @@ CAABox CAABox::GetTransformedAABox(const CTransform4f& xf) const {
CVector3f newMin = xf.GetTranslation();
CVector3f newMax = xf.GetTranslation();
for (int x = 0; x < 3; ++x) {
const CVector3f& row = xf.GetRow(x);
const CVector3f& minPoint = GetMinPoint();
const CVector3f& maxPoint = GetMaxPoint();
for (int y = 0; y < 3; ++y) {
float mul = xf.GetRow(x)[y];
float minMul = mul * GetMinPoint()[y];
float maxMul = mul * GetMaxPoint()[y];
float minMul = row[y] * minPoint[y];
float maxMul = row[y] * maxPoint[y];
if (minMul < maxMul) {
newMin[x] += maxMul;
newMax[x] += minMul;
} else {
newMin[x] += minMul;
newMax[x] += maxMul;
} else {
newMin[x] += maxMul;
newMax[x] += minMul;
}
}
}

22
src/WorldFormat/CMetroidModelInstance.cpp Normal file
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@ -0,0 +1,22 @@
#include "WorldFormat/CMetroidModelInstance.hpp"
#include "Kyoto/Basics/CBasics.hpp"
const CTransform4f& TransformFromData(const void* ptr) {
return *static_cast< const CTransform4f* >(ptr);
}
CAABox BoundingBoxFromData(const void* ptr) {
const CAABox* tmp = static_cast< const CAABox* >(ptr);
float minX = CBasics::SwapBytes(tmp->GetMinPoint().GetX());
float minY = CBasics::SwapBytes(tmp->GetMinPoint().GetY());
float minZ = CBasics::SwapBytes(tmp->GetMinPoint().GetZ());
float maxX = CBasics::SwapBytes(tmp->GetMaxPoint().GetX());
float maxY = CBasics::SwapBytes(tmp->GetMaxPoint().GetY());
float maxZ = CBasics::SwapBytes(tmp->GetMaxPoint().GetZ());
return CAABox(minX, minY, minZ, maxX, maxY, maxZ);
}
CMetroidModelInstance::CMetroidModelInstance(const void*, const void*, const void*, const void*,
const void*, const void*, const void*,
const rstl::vector< void* >&) {}