clean up code:
removed useless variables, moved code into new functions
This commit is contained in:
Anakin
parent
548150f33e
commit
b2f174d15f
@ -4,7 +4,7 @@
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#include <fstream>
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#include <string>
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enum mtyp {
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enum Mtyp {
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null,
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dynamicMesh,
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cloth,
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@ -13,18 +13,16 @@ enum mtyp {
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shadowMesh = 6
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};
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struct chunkHeader {
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struct ChunkHeader {
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char name[5];
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std::uint32_t size;
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std::streampos position;
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};
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struct modl {
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struct Modl {
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std::string name;
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std::uint32_t size;
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std::streampos position;
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std::string parent;
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mtyp type;
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Mtyp type;
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std::uint32_t zeroBaseIndex;
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std::uint32_t renderFlags;
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struct {
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@ -49,13 +47,17 @@ public:
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private:
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std::list<chunkHeader*> lChunkMsh2;
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std::list<modl*> lModls;
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std::list<ChunkHeader*> lChunkMsh2;
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std::list<Modl*> lModls;
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std::fstream fsMesh;
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private:
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void loadChunks(std::list<chunkHeader*> &destination, std::streampos start, const std::uint32_t end);
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void loadChunks(std::list<ChunkHeader*> &destination, std::streampos start, const std::uint32_t end);
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void analyseModlChunks(Modl* dataDestination, std::list<ChunkHeader*> &chunkList);
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void analyseGeomChunks(Modl* dataDestination, std::list<ChunkHeader*> &chunkList);
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void analyseSegmChunks(Modl* dataDestination, std::list<ChunkHeader*> &chunkList);
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void analyseClthChunks(Modl* dataDestination, std::list<ChunkHeader*> &chunkList);
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public:
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@ -29,96 +29,29 @@ Object::Object(const char* path)
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loadChunks(lChunkMsh2, fsMesh.tellg(), tempSize);
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// search for all MODL Chunks
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for (std::list<chunkHeader*>::iterator it = lChunkMsh2.begin(); it != lChunkMsh2.end(); it++)
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for (std::list<ChunkHeader*>::iterator it = lChunkMsh2.begin(); it != lChunkMsh2.end(); it++)
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{
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if (!strcmp("MODL", (*it)->name))
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{
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modl* tempModl = new modl;
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tempModl->size = (*it)->size;
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tempModl->position = (*it)->position;
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std::list<chunkHeader*> tempChunks;
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Modl* tempModl = new Modl;
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// get all subchunks
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std::list<ChunkHeader*> tempChunks;
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loadChunks(tempChunks, (*it)->position, (*it)->size);
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// evaluate MODL subchunks
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for (std::list<chunkHeader*>::iterator it = tempChunks.begin(); it != tempChunks.end(); it++)
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{
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if (!strcmp("MTYP", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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std::uint32_t tempType;
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fsMesh.read(reinterpret_cast<char*>(&tempType), sizeof(tempType));
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tempModl->type = (mtyp)tempType;
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}
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if (!strcmp("MNDX", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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fsMesh.read(reinterpret_cast<char*>(&tempModl->zeroBaseIndex), sizeof(tempModl->zeroBaseIndex));
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}
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if (!strcmp("PRNT", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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char tempName[33] = { 0 };
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fsMesh.read(reinterpret_cast<char*>(&tempName[0]), (*it)->size > 32 ? 32 : (*it)->size);
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tempModl->parent = tempName;
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}
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if (!strcmp("NAME", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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char tempName[33] = { 0 };
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fsMesh.read(reinterpret_cast<char*>(&tempName[0]), (*it)->size > 32 ? 32 : (*it)->size);
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tempModl->name = tempName;
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}
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if (!strcmp("FLGS", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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fsMesh.read(reinterpret_cast<char*>(&tempModl->renderFlags), sizeof(tempModl->renderFlags));
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}
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if (!strcmp("TRAN", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.scale[0]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.scale[1]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.scale[2]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.rotation[0]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.rotation[1]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.rotation[2]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.rotation[3]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.translation[0]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.translation[1]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->tran.translation[2]), sizeof(float));
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}
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if (!strcmp("GEOM", (*it)->name))
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{
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}
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if (!strcmp("SWCI", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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fsMesh.read(reinterpret_cast<char*>(&tempModl->swci.type), sizeof(tempModl->swci.type));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->swci.data1), sizeof(tempModl->swci.data1));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->swci.data2), sizeof(tempModl->swci.data2));
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fsMesh.read(reinterpret_cast<char*>(&tempModl->swci.data3), sizeof(tempModl->swci.data3));
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}
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}
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lModls.push_back(tempModl);
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analyseModlChunks(tempModl, tempChunks);
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//clean up
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while (!tempChunks.empty())
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{
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chunkHeader* tempCursor = tempChunks.front();
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ChunkHeader* tempCursor = tempChunks.front();
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tempChunks.pop_front();
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delete tempCursor;
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}
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// save Model data
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lModls.push_back(tempModl);
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}
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}
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@ -136,14 +69,14 @@ Object::~Object()
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/////////////////////////////////////////////////////////////////////////
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// private functions
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void Object::loadChunks(std::list<chunkHeader*>& destination, std::streampos start, const std::uint32_t end)
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void Object::loadChunks(std::list<ChunkHeader*>& destination, std::streampos start, const std::uint32_t end)
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{
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// jump to first chunk
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fsMesh.seekg(start);
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do
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{
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chunkHeader* tempHeader = new chunkHeader();
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ChunkHeader* tempHeader = new ChunkHeader();
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fsMesh.read(reinterpret_cast<char*>(&tempHeader->name[0]), sizeof(tempHeader->name) - 1);
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fsMesh.read(reinterpret_cast<char*>(&tempHeader->size), sizeof(tempHeader->size));
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@ -171,6 +104,243 @@ void Object::loadChunks(std::list<chunkHeader*>& destination, std::streampos sta
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}
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void Object::analyseModlChunks(Modl* dataDestination, std::list<ChunkHeader*>& chunkList)
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{
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for (std::list<ChunkHeader*>::iterator it = chunkList.begin(); it != chunkList.end(); it++)
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{
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if (!strcmp("MTYP", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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std::uint32_t tempType;
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fsMesh.read(reinterpret_cast<char*>(&tempType), sizeof(tempType));
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dataDestination->type = (Mtyp)tempType;
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}
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if (!strcmp("MNDX", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->zeroBaseIndex), sizeof(dataDestination->zeroBaseIndex));
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}
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if (!strcmp("PRNT", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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char tempName[33] = { 0 };
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fsMesh.read(reinterpret_cast<char*>(&tempName[0]), (*it)->size > 32 ? 32 : (*it)->size);
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dataDestination->parent = tempName;
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}
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if (!strcmp("NAME", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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char tempName[33] = { 0 };
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fsMesh.read(reinterpret_cast<char*>(&tempName[0]), (*it)->size > 32 ? 32 : (*it)->size);
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dataDestination->name = tempName;
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}
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if (!strcmp("FLGS", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->renderFlags), sizeof(dataDestination->renderFlags));
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}
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if (!strcmp("TRAN", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.scale[0]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.scale[1]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.scale[2]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.rotation[0]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.rotation[1]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.rotation[2]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.rotation[3]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.translation[0]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.translation[1]), sizeof(float));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->tran.translation[2]), sizeof(float));
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}
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if (!strcmp("GEOM", (*it)->name))
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{
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// get all subchunks
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std::list<ChunkHeader*> tempGeomChunks;
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loadChunks(tempGeomChunks, (*it)->position, (*it)->size);
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// evaluate GEOM subchunks
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analyseGeomChunks(dataDestination, tempGeomChunks);
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// clean up
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while (!tempGeomChunks.empty())
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{
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ChunkHeader* tempCursor = tempGeomChunks.front();
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tempGeomChunks.pop_front();
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delete tempCursor;
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}
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}
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if (!strcmp("SWCI", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->swci.type), sizeof(dataDestination->swci.type));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->swci.data1), sizeof(dataDestination->swci.data1));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->swci.data2), sizeof(dataDestination->swci.data2));
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fsMesh.read(reinterpret_cast<char*>(&dataDestination->swci.data3), sizeof(dataDestination->swci.data3));
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}
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}
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}
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void Object::analyseGeomChunks(Modl * dataDestination, std::list<ChunkHeader*>& chunkList)
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{
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for (std::list<ChunkHeader*>::iterator it = chunkList.begin(); it != chunkList.end(); it++)
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{
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if (!strcmp("SEGM", (*it)->name))
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{
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// get all subchunks
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std::list<ChunkHeader*> tempSegmChunks;
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loadChunks(tempSegmChunks, (*it)->position, (*it)->size);
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// evaluate SEGM subchunks
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analyseSegmChunks(dataDestination, tempSegmChunks);
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// clean up
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while (!tempSegmChunks.empty())
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{
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ChunkHeader* tempCursor = tempSegmChunks.front();
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tempSegmChunks.pop_front();
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delete tempCursor;
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}
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}
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if (!strcmp("CLTH", (*it)->name))
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{
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// get all subchunks
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std::list<ChunkHeader*> tempClthChunks;
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loadChunks(tempClthChunks, (*it)->position, (*it)->size);
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// evaluate CLTH subchunks
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analyseClthChunks(dataDestination, tempClthChunks);
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// clean up
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while (!tempClthChunks.empty())
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{
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ChunkHeader* tempCursor = tempClthChunks.front();
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tempClthChunks.pop_front();
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delete tempCursor;
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}
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}
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}
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}
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void Object::analyseSegmChunks(Modl * dataDestination, std::list<ChunkHeader*>& chunkList)
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{
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for (std::list<ChunkHeader*>::iterator it = chunkList.begin(); it != chunkList.end(); it++)
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{
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if (!strcmp("SHDW", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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/* shadow mesh geometry
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long int - 4 - number of vertex positions
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float[3][] - 12 each - vertex positions (XYZ)
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long int - 4 - number of edges
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short int[4][] - 8 each - edge the following 4 entries from one edge
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> short int - 2 - vertex index of this edge, referes to the vertex list
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> short int - 2 - Reference into an edge. Defines the target vertex (the local edge vertex of the referenced edge) to which the edge should be dran from the local vertex
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> short int - 2 - Second reference into an edge. In all example .msh files I've seen this always refers to the same vertex as the first edge reference
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> short int - 2 - MAX_VALUE of short integers (65535). Indicates the end of this edge
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*/
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}
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if (!strcmp("MATI", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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// material index index into MATL
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// long int - 4 - material index
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}
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if (!strcmp("POSL", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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// list of vertex coordinates
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// long int - 4 - number of coordinates stored in this list
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// float[3][] - 12 each - XYZ coordinates
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}
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if (!strcmp("NRML", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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// List of normals
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// long int - 4 - number of normal vectores stored in this list
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// float[3][] - 12 each - UVW vector for each vertex
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}
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if (!strcmp("UV0L", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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// List of UV
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// long int - 4 - number of UV
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// float[2][] - 8 each - UV coordinate
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}
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if (!strcmp("STRP", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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/*
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List of triangles strips. The start of a strip is indicated by 2 entries
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with a high bit set (0x8000 or 32768 added). Triangles are listed CW, CCW,
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CW, CCW... NOTE: In some meshes this chunk has a trailing short which is not
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calculated into the length/size of this chunk or the # of indices. This
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short can be ignored. If added to the last polygon it will break it as it
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always seems to be 0.
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long int - 4 - number of indicies into POSL
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short int[] - 2 each - index into POSL the indices will form polygons
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*/
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}
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}
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}
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void Object::analyseClthChunks(Modl * dataDestination, std::list<ChunkHeader*>& chunkList)
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{
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for (std::list<ChunkHeader*>::iterator it = chunkList.begin(); it != chunkList.end(); it++)
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{
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if (!strcmp("CTEX", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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// texture name with extension (how long could it be??)
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// ascii
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}
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if (!strcmp("CPOS", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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// list of Vertex coordinates
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// long int (4) number of vertex
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// float[3][] (12 each) XYZ coordinates
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}
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if (!strcmp("CUV0", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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// list of UV coordinates
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// long int (4) number of UV Coordinates
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// float[2][] (8 each) UV coordinate
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}
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if (!strcmp("CMSH", (*it)->name))
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{
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fsMesh.seekg((*it)->position);
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// cloth tirangles
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// long int (4) number of points
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// long int[3][] (16 each) triangle points defined CCW
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}
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}
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}
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/////////////////////////////////////////////////////////////////////////
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// public getter
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