mirror of https://github.com/AxioDL/metaforce.git
479 lines
14 KiB
C++
479 lines
14 KiB
C++
#include "AROTBuilder.hpp"
|
|
#include "hecl/Blender/Connection.hpp"
|
|
#include "../DNAMP1/PATH.hpp"
|
|
|
|
namespace DataSpec
|
|
{
|
|
logvisor::Module Log("AROTBuilder");
|
|
|
|
#define AROT_MAX_LEVEL 6
|
|
#define AROT_MIN_MODELS 8
|
|
#define COLLISION_MIN_NODE_TRIANGLES 16
|
|
#define PATH_MIN_NODE_REGIONS 16
|
|
|
|
static zeus::CAABox SplitAABB(const zeus::CAABox& aabb, int i)
|
|
{
|
|
zeus::CAABox pos, neg;
|
|
aabb.splitZ(neg, pos);
|
|
if (i & 4)
|
|
{
|
|
zeus::CAABox(pos).splitY(neg, pos);
|
|
if (i & 2)
|
|
{
|
|
zeus::CAABox(pos).splitX(neg, pos);
|
|
if (i & 1)
|
|
return pos;
|
|
else
|
|
return neg;
|
|
}
|
|
else
|
|
{
|
|
zeus::CAABox(neg).splitX(neg, pos);
|
|
if (i & 1)
|
|
return pos;
|
|
else
|
|
return neg;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
zeus::CAABox(neg).splitY(neg, pos);
|
|
if (i & 2)
|
|
{
|
|
zeus::CAABox(pos).splitX(neg, pos);
|
|
if (i & 1)
|
|
return pos;
|
|
else
|
|
return neg;
|
|
}
|
|
else
|
|
{
|
|
zeus::CAABox(neg).splitX(neg, pos);
|
|
if (i & 1)
|
|
return pos;
|
|
else
|
|
return neg;
|
|
}
|
|
}
|
|
}
|
|
|
|
void AROTBuilder::Node::addChild(int level, int minChildren, const std::vector<zeus::CAABox>& triBoxes,
|
|
const zeus::CAABox& curAABB, BspNodeType& typeOut)
|
|
{
|
|
/* Gather intersecting faces */
|
|
for (int i=0 ; i<triBoxes.size() ; ++i)
|
|
if (triBoxes[i].intersects(curAABB))
|
|
childIndices.insert(i);
|
|
|
|
/* Return early if empty, triangle intersection below performance threshold, or at max level */
|
|
if (childIndices.empty())
|
|
{
|
|
typeOut = BspNodeType::Invalid;
|
|
return;
|
|
}
|
|
else if (childIndices.size() < minChildren || level == AROT_MAX_LEVEL)
|
|
{
|
|
typeOut = BspNodeType::Leaf;
|
|
return;
|
|
}
|
|
|
|
/* Subdivide */
|
|
typeOut = BspNodeType::Branch;
|
|
childNodes.resize(8);
|
|
for (int i=0 ; i<8 ; ++i)
|
|
{
|
|
BspNodeType chType;
|
|
childNodes[i].addChild(level + 1, minChildren, triBoxes, SplitAABB(curAABB, i), chType);
|
|
flags |= int(chType) << (i * 2);
|
|
}
|
|
|
|
/* Unsubdivide */
|
|
compSubdivs = 0;
|
|
if (childNodes[0].childIndices != childNodes[1].childIndices ||
|
|
childNodes[4].childIndices != childNodes[5].childIndices ||
|
|
childNodes[2].childIndices != childNodes[3].childIndices ||
|
|
childNodes[6].childIndices != childNodes[7].childIndices)
|
|
compSubdivs |= 0x4;
|
|
if (childNodes[0].childIndices != childNodes[2].childIndices ||
|
|
childNodes[1].childIndices != childNodes[3].childIndices ||
|
|
childNodes[4].childIndices != childNodes[6].childIndices ||
|
|
childNodes[5].childIndices != childNodes[7].childIndices)
|
|
compSubdivs |= 0x2;
|
|
if (childNodes[0].childIndices != childNodes[4].childIndices ||
|
|
childNodes[1].childIndices != childNodes[5].childIndices ||
|
|
childNodes[2].childIndices != childNodes[6].childIndices ||
|
|
childNodes[3].childIndices != childNodes[7].childIndices)
|
|
compSubdivs |= 0x1;
|
|
|
|
if (!compSubdivs)
|
|
{
|
|
typeOut = BspNodeType::Leaf;
|
|
childNodes = std::vector<Node>();
|
|
flags = 0;
|
|
}
|
|
}
|
|
|
|
size_t AROTBuilder::BitmapPool::addIndices(const std::set<int>& indices)
|
|
{
|
|
for (size_t i=0 ; i<m_pool.size() ; ++i)
|
|
if (m_pool[i] == indices)
|
|
return i;
|
|
m_pool.push_back(indices);
|
|
return m_pool.size() - 1;
|
|
}
|
|
|
|
static const uint32_t AROTChildCounts[] = { 0, 2, 2, 4, 2, 4, 4, 8 };
|
|
|
|
void AROTBuilder::Node::nodeCount(size_t& sz, size_t& idxRefs, BitmapPool& bmpPool, size_t& curOff)
|
|
{
|
|
sz += 1;
|
|
poolIdx = bmpPool.addIndices(childIndices);
|
|
if (poolIdx > 65535)
|
|
Log.report(logvisor::Fatal, "AROT bitmap exceeds 16-bit node addressing; area too complex");
|
|
|
|
uint32_t childCount = AROTChildCounts[compSubdivs];
|
|
nodeOff = curOff;
|
|
nodeSz = childCount * 2 + 4;
|
|
curOff += nodeSz;
|
|
if (childNodes.size())
|
|
{
|
|
for (int k=0 ; k < 1 + ((compSubdivs & 0x1) != 0) ; ++k)
|
|
{
|
|
for (int j=0 ; j < 1 + ((compSubdivs & 0x2) != 0) ; ++j)
|
|
{
|
|
for (int i=0 ; i < 1 + ((compSubdivs & 0x4) != 0) ; ++i)
|
|
{
|
|
int idx = k*4 + j*2 + i;
|
|
childNodes[idx].nodeCount(sz, idxRefs, bmpPool, curOff);
|
|
}
|
|
}
|
|
}
|
|
idxRefs += childCount;
|
|
}
|
|
}
|
|
|
|
void AROTBuilder::Node::writeIndirectionTable(athena::io::MemoryWriter& w)
|
|
{
|
|
w.writeUint32Big(nodeOff);
|
|
if (childNodes.size())
|
|
{
|
|
for (int k=0 ; k < 1 + ((compSubdivs & 0x1) != 0) ; ++k)
|
|
{
|
|
for (int j=0 ; j < 1 + ((compSubdivs & 0x2) != 0) ; ++j)
|
|
{
|
|
for (int i=0 ; i < 1 + ((compSubdivs & 0x4) != 0) ; ++i)
|
|
{
|
|
int idx = k*4 + j*2 + i;
|
|
childNodes[idx].writeIndirectionTable(w);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void AROTBuilder::Node::writeNodes(athena::io::MemoryWriter& w, int nodeIdx)
|
|
{
|
|
w.writeUint16Big(poolIdx);
|
|
w.writeUint16Big(compSubdivs);
|
|
|
|
if (childNodes.size())
|
|
{
|
|
int curIdx = nodeIdx + 1;
|
|
if (curIdx > 65535)
|
|
Log.report(logvisor::Fatal, "AROT node exceeds 16-bit node addressing; area too complex");
|
|
|
|
int childIndices[8];
|
|
|
|
for (int k=0 ; k < 1 + ((compSubdivs & 0x1) != 0) ; ++k)
|
|
{
|
|
for (int j=0 ; j < 1 + ((compSubdivs & 0x2) != 0) ; ++j)
|
|
{
|
|
for (int i=0 ; i < 1 + ((compSubdivs & 0x4) != 0) ; ++i)
|
|
{
|
|
int idx = k*4 + j*2 + i;
|
|
w.writeUint16Big(curIdx);
|
|
childIndices[idx] = curIdx;
|
|
childNodes[idx].advanceIndex(curIdx);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (int k=0 ; k < 1 + ((compSubdivs & 0x1) != 0) ; ++k)
|
|
{
|
|
for (int j=0 ; j < 1 + ((compSubdivs & 0x2) != 0) ; ++j)
|
|
{
|
|
for (int i=0 ; i < 1 + ((compSubdivs & 0x4) != 0) ; ++i)
|
|
{
|
|
int idx = k*4 + j*2 + i;
|
|
childNodes[idx].writeNodes(w, childIndices[idx]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void AROTBuilder::Node::advanceIndex(int& nodeIdx)
|
|
{
|
|
++nodeIdx;
|
|
if (childNodes.size())
|
|
{
|
|
for (int k=0 ; k < 1 + ((compSubdivs & 0x1) != 0) ; ++k)
|
|
{
|
|
for (int j=0 ; j < 1 + ((compSubdivs & 0x2) != 0) ; ++j)
|
|
{
|
|
for (int i=0 ; i < 1 + ((compSubdivs & 0x4) != 0) ; ++i)
|
|
{
|
|
int idx = k*4 + j*2 + i;
|
|
childNodes[idx].advanceIndex(nodeIdx);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void AROTBuilder::Node::colSize(size_t& totalSz)
|
|
{
|
|
if (childIndices.size())
|
|
{
|
|
nodeOff = totalSz;
|
|
if (childNodes.empty())
|
|
{
|
|
totalSz += 26 + childIndices.size() * 2;
|
|
}
|
|
else
|
|
{
|
|
totalSz += 36;
|
|
for (int i=0 ; i<8 ; ++i)
|
|
childNodes[i].colSize(totalSz);
|
|
}
|
|
}
|
|
}
|
|
|
|
void AROTBuilder::Node::writeColNodes(uint8_t*& ptr, const zeus::CAABox& curAABB)
|
|
{
|
|
if (childIndices.size())
|
|
{
|
|
if (childNodes.empty())
|
|
{
|
|
float* aabbOut = reinterpret_cast<float*>(ptr);
|
|
aabbOut[0] = hecl::SBig(curAABB.min[0]);
|
|
aabbOut[1] = hecl::SBig(curAABB.min[1]);
|
|
aabbOut[2] = hecl::SBig(curAABB.min[2]);
|
|
aabbOut[3] = hecl::SBig(curAABB.max[0]);
|
|
aabbOut[4] = hecl::SBig(curAABB.max[1]);
|
|
aabbOut[5] = hecl::SBig(curAABB.max[2]);
|
|
athena::io::MemoryWriter w(ptr + 24, INT32_MAX);
|
|
w.writeUint16Big(childIndices.size());
|
|
for (int idx : childIndices)
|
|
w.writeUint16Big(idx);
|
|
ptr += 26 + childIndices.size() * 2;
|
|
}
|
|
else
|
|
{
|
|
uint16_t* pflags = reinterpret_cast<uint16_t*>(ptr);
|
|
uint32_t* offsets = reinterpret_cast<uint32_t*>(ptr + 4);
|
|
memset(pflags, 0, sizeof(uint32_t) * 9);
|
|
for (int i=0 ; i<8 ; ++i)
|
|
{
|
|
const Node& chNode = childNodes[i];
|
|
BspNodeType type = BspNodeType((flags >> (i * 2)) & 0x3);
|
|
if (type != BspNodeType::Invalid)
|
|
offsets[i] = hecl::SBig(uint32_t(chNode.nodeOff - nodeOff - 36));
|
|
}
|
|
|
|
*pflags = hecl::SBig(flags);
|
|
ptr += 36;
|
|
|
|
for (int i=0 ; i<8 ; ++i)
|
|
childNodes[i].writeColNodes(ptr, SplitAABB(curAABB, i));
|
|
}
|
|
}
|
|
}
|
|
|
|
void AROTBuilder::Node::pathCountNodesAndLookups(size_t& nodeCount, size_t& lookupCount)
|
|
{
|
|
++nodeCount;
|
|
if (childNodes.empty())
|
|
{
|
|
lookupCount += childIndices.size();
|
|
}
|
|
else
|
|
{
|
|
for (int i=0 ; i<8 ; ++i)
|
|
childNodes[i].pathCountNodesAndLookups(nodeCount, lookupCount);
|
|
}
|
|
}
|
|
|
|
void AROTBuilder::Node::pathWrite(DNAMP1::PATH& path, const zeus::CAABox& curAABB)
|
|
{
|
|
if (childNodes.empty())
|
|
{
|
|
path.octree.emplace_back();
|
|
DNAMP1::PATH::OctreeNode& n = path.octree.back();
|
|
n.isLeaf = 1;
|
|
n.aabb[0] = curAABB.min;
|
|
n.aabb[1] = curAABB.max;
|
|
n.centroid = curAABB.center();
|
|
for (int i=0 ; i<8 ; ++i)
|
|
n.children[i] = 0xffffffff;
|
|
n.regionCount = childIndices.size();
|
|
n.regionStart = path.octreeRegionLookup.size();
|
|
for (int r : childIndices)
|
|
path.octreeRegionLookup.push_back(r);
|
|
}
|
|
else
|
|
{
|
|
atUint32 children[8];
|
|
for (int i=0 ; i<8 ; ++i)
|
|
{
|
|
/* Head recursion (first node will be a leaf) */
|
|
children[i] = path.octree.size();
|
|
childNodes[i].pathWrite(path, SplitAABB(curAABB, i));
|
|
}
|
|
|
|
path.octree.emplace_back();
|
|
DNAMP1::PATH::OctreeNode& n = path.octree.back();
|
|
n.isLeaf = 0;
|
|
n.aabb[0] = curAABB.min;
|
|
n.aabb[1] = curAABB.max;
|
|
n.centroid = curAABB.center();
|
|
for (int i=0 ; i<8 ; ++i)
|
|
n.children[i] = children[i];
|
|
n.regionCount = 0;
|
|
n.regionStart = 0;
|
|
}
|
|
}
|
|
|
|
void AROTBuilder::build(std::vector<std::vector<uint8_t>>& secs, const zeus::CAABox& fullAabb,
|
|
const std::vector<zeus::CAABox>& meshAabbs, const std::vector<DNACMDL::Mesh>& meshes)
|
|
{
|
|
/* Recursively split */
|
|
BspNodeType rootType;
|
|
rootNode.addChild(0, AROT_MIN_MODELS, meshAabbs, fullAabb, rootType);
|
|
|
|
/* Calculate indexing metrics */
|
|
size_t totalNodeCount = 0;
|
|
size_t idxRefCount = 0;
|
|
size_t curOff = 0;
|
|
rootNode.nodeCount(totalNodeCount, idxRefCount, bmpPool, curOff);
|
|
size_t bmpWordCount = ROUND_UP_32(meshes.size()) / 32;
|
|
size_t arotSz = 64 + bmpWordCount * bmpPool.m_pool.size() * 4 + totalNodeCount * 8 + idxRefCount * 2;
|
|
|
|
/* Write header */
|
|
secs.emplace_back(arotSz, 0);
|
|
athena::io::MemoryWriter w(secs.back().data(), secs.back().size());
|
|
w.writeUint32Big('AROT');
|
|
w.writeUint32Big(1);
|
|
w.writeUint32Big(bmpPool.m_pool.size());
|
|
w.writeUint32Big(meshes.size());
|
|
w.writeUint32Big(totalNodeCount);
|
|
w.writeVec3fBig(fullAabb.min);
|
|
w.writeVec3fBig(fullAabb.max);
|
|
w.seekAlign32();
|
|
|
|
/* Write bitmap */
|
|
std::vector<uint32_t> bmpWords;
|
|
bmpWords.reserve(bmpWordCount);
|
|
for (const std::set<int>& bmp : bmpPool.m_pool)
|
|
{
|
|
bmpWords.clear();
|
|
bmpWords.resize(bmpWordCount);
|
|
|
|
auto bmpIt = bmp.cbegin();
|
|
if (bmpIt != bmp.cend())
|
|
{
|
|
int curIdx = 0;
|
|
for (int w=0 ; w<bmpWordCount ; ++w)
|
|
{
|
|
for (int b=0 ; b<32 ; ++b)
|
|
{
|
|
if (*bmpIt == curIdx)
|
|
{
|
|
bmpWords[w] |= 1 << b;
|
|
++bmpIt;
|
|
if (bmpIt == bmp.cend())
|
|
break;
|
|
}
|
|
++curIdx;
|
|
}
|
|
if (bmpIt == bmp.cend())
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (uint32_t word : bmpWords)
|
|
w.writeUint32Big(word);
|
|
}
|
|
|
|
/* Write the rest */
|
|
rootNode.writeIndirectionTable(w);
|
|
rootNode.writeNodes(w, 0);
|
|
}
|
|
|
|
std::pair<std::unique_ptr<uint8_t[]>, uint32_t> AROTBuilder::buildCol(const ColMesh& mesh, BspNodeType& rootOut)
|
|
{
|
|
/* Accumulate total AABB */
|
|
zeus::CAABox fullAABB;
|
|
for (const auto& vert : mesh.verts)
|
|
fullAABB.accumulateBounds(zeus::CVector3f(vert));
|
|
|
|
/* Predetermine triangle AABBs */
|
|
std::vector<zeus::CAABox> triBoxes;
|
|
triBoxes.reserve(mesh.trianges.size());
|
|
for (const ColMesh::Triangle& tri : mesh.trianges)
|
|
{
|
|
triBoxes.emplace_back();
|
|
zeus::CAABox& aabb = triBoxes.back();
|
|
for (int e=0 ; e<3 ; ++e)
|
|
{
|
|
const ColMesh::Edge& edge = mesh.edges[tri.edges[e]];
|
|
for (int v=0 ; v<2 ; ++v)
|
|
{
|
|
const auto& vert = mesh.verts[edge.verts[v]];
|
|
aabb.accumulateBounds(zeus::CVector3f(vert));
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Recursively split */
|
|
rootNode.addChild(0, COLLISION_MIN_NODE_TRIANGLES, triBoxes, fullAABB, rootOut);
|
|
|
|
/* Calculate offsets and write out */
|
|
size_t totalSize = 0;
|
|
rootNode.colSize(totalSize);
|
|
std::unique_ptr<uint8_t[]> ret(new uint8_t[totalSize]);
|
|
uint8_t* ptr = ret.get();
|
|
rootNode.writeColNodes(ptr, fullAABB);
|
|
|
|
return {std::move(ret), totalSize};
|
|
}
|
|
|
|
void AROTBuilder::buildPath(DNAMP1::PATH& path)
|
|
{
|
|
/* Accumulate total AABB and gather region boxes */
|
|
std::vector<zeus::CAABox> regionBoxes;
|
|
regionBoxes.reserve(path.regions.size());
|
|
zeus::CAABox fullAABB;
|
|
for (const DNAMP1::PATH::Region& r : path.regions)
|
|
{
|
|
regionBoxes.emplace_back(r.aabb[0], r.aabb[1]);
|
|
fullAABB.accumulateBounds(regionBoxes.back());
|
|
}
|
|
|
|
/* Recursively split */
|
|
BspNodeType dontCare;
|
|
rootNode.addChild(0, PATH_MIN_NODE_REGIONS, regionBoxes, fullAABB, dontCare);
|
|
|
|
/* Write out */
|
|
size_t nodeCount = 0;
|
|
size_t lookupCount = 0;
|
|
rootNode.pathCountNodesAndLookups(nodeCount, lookupCount);
|
|
path.octreeNodeCount = nodeCount;
|
|
path.octree.reserve(nodeCount);
|
|
path.octreeRegionLookupCount = lookupCount;
|
|
path.octreeRegionLookup.reserve(lookupCount);
|
|
rootNode.pathWrite(path, fullAABB);
|
|
}
|
|
|
|
}
|