737 lines
19 KiB
C++
737 lines
19 KiB
C++
#include "..\Header\MshFile.h"
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#include "..\Header\tga.h"
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#include <QColor>
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// helper function to save data from file to any variable type
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#define F2V(variableName) reinterpret_cast<char*>(&variableName)
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/////////////////////////////////////////////////////////////////////////
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// public constructor/destructor
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MshFile::MshFile(QString path, QObject * parent)
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: FileInterface(path, parent)
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{
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import();
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}
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MshFile::~MshFile()
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{
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}
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/////////////////////////////////////////////////////////////////////////
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// private functions
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void MshFile::import()
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{
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// go to file size information
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m_file.seekg(4);
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std::uint32_t tmp_fileSize;
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std::list<ChunkHeader*> tmp_mainChunks;
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// get all chunks under HEDR
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m_file.read(F2V(tmp_fileSize), sizeof(tmp_fileSize));
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loadChunks(tmp_mainChunks, m_file.tellg(), tmp_fileSize);
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// evaulate HEDR subchunks (= find MSH2)
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for (ChunkHeader* it : tmp_mainChunks)
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{
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if (!strcmp("MSH2", it->name))
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{
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// get all subchunks
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std::list<ChunkHeader*> tmp_msh2Chunks;
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loadChunks(tmp_msh2Chunks, it->position, it->size);
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// evaluate MSH2 subchunks
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analyseMsh2Chunks(tmp_msh2Chunks);
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// clean up
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while (!tmp_msh2Chunks.empty())
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{
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ChunkHeader* curs = tmp_msh2Chunks.front();
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tmp_msh2Chunks.pop_front();
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delete curs;
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}
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}
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}
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// clean up
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while (!tmp_mainChunks.empty())
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{
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ChunkHeader* cur = tmp_mainChunks.front();
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tmp_mainChunks.pop_front();
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delete cur;
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}
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}
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void MshFile::loadChunks(std::list<ChunkHeader*>& destination, std::streampos start, const std::uint32_t length)
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{
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// jump to first chunk
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m_file.seekg(start);
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do
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{
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ChunkHeader* tmp_header = new ChunkHeader();
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// get information
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m_file.read(F2V(tmp_header->name[0]), sizeof(tmp_header->name) - 1);
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m_file.read(F2V(tmp_header->size), sizeof(tmp_header->size));
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tmp_header->position = m_file.tellg();
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// store information
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destination.push_back(tmp_header);
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// jump to next header
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m_file.seekg(tmp_header->size, std::ios_base::cur);
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// out of file. Maybe a size information is corrupted
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if (!m_file.good())
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{
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emit sendMessage("WARNING: corrupted file. Trying to continue..", 1);
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m_file.clear();
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break;
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}
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} while (m_file.tellg() - start != length);
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}
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void MshFile::analyseMsh2Chunks(std::list<ChunkHeader*>& chunkList)
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{
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for (auto& it : chunkList)
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{
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// scene information
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if (!strcmp("SINF", it->name))
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{
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// get SINF subchunks
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std::list<ChunkHeader*> tmp_sinfChunks;
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loadChunks(tmp_sinfChunks, it->position, it->size);
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// evaluate SINF subchunks
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for (auto& it : tmp_sinfChunks)
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{
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if (!strcmp("BBOX", it->name))
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{
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m_file.seekg(it->position);
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// read in the quaternion
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float tmp_quat[4];
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for (int i = 0; i < 4; i++)
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m_file.read(F2V(tmp_quat[i]), sizeof(float));
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m_sceneBbox.rotation.setX(tmp_quat[0]);
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m_sceneBbox.rotation.setY(tmp_quat[1]);
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m_sceneBbox.rotation.setZ(tmp_quat[2]);
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m_sceneBbox.rotation.setScalar(tmp_quat[3]);
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//read in the center
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for (int i = 0; i < 3; i++)
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m_file.read(F2V(m_sceneBbox.center[i]), sizeof(float));
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//read in the extents
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for (int i = 0; i < 3; i++)
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m_file.read(F2V(m_sceneBbox.extents[i]), sizeof(float));
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}
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}
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// clean up SINF subchunks
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for (ChunkHeader* it : tmp_sinfChunks)
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delete it;
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}
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// material list
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else if (!strcmp("MATL", it->name))
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{
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// "useless" information how many MATD follow, jump over it
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m_file.seekg(it->position);
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m_file.seekg(sizeof(std::uint32_t), std::ios_base::cur);
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// get all MATL subchunk
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std::list<ChunkHeader*> tmp_matlChunks;
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loadChunks(tmp_matlChunks, m_file.tellg(), it->size - 4);
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// evaluate MATL subchunks
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for (auto& it : tmp_matlChunks)
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{
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// This shouldn't be anything else than MATD
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if (!strcmp("MATD", it->name))
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{
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// get all subchunks from MATD
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std::list<ChunkHeader*> tmp_matdChunks;
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loadChunks(tmp_matdChunks, it->position, it->size);
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m_materials->push_back(Material());
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// analyse MATD subchunks
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analyseMatdChunks(tmp_matdChunks);
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// clean up MATD subchunks
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while (!tmp_matdChunks.empty())
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{
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ChunkHeader* cur = tmp_matdChunks.front();
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tmp_matdChunks.pop_front();
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delete cur;
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}
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}
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}
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// clean up MATL subchunks
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while (!tmp_matlChunks.empty())
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{
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ChunkHeader* cur = tmp_matlChunks.front();
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tmp_matlChunks.pop_front();
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delete cur;
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}
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}
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// model
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else if (!strcmp("MODL", it->name))
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{
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Model* new_model = new Model;
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m_currentType = ModelTyp::null;
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m_currentRenderFlag = -1;
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// get all MODL subchunks
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std::list<ChunkHeader*> tmp_chunks;
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loadChunks(tmp_chunks, it->position, it->size);
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// evaluate MODL subchunks
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analyseModlChunks(new_model, tmp_chunks);
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//clean up MODL subchunks
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while (!tmp_chunks.empty())
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{
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ChunkHeader* cur = tmp_chunks.front();
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tmp_chunks.pop_front();
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delete cur;
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}
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// save Model data
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m_models->push_back(new_model);
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}
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}
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}
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void MshFile::analyseMatdChunks(std::list<ChunkHeader*>& chunkList)
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{
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for (auto& it : chunkList)
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{
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// name
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if (!strcmp("NAME", it->name))
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{
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m_file.seekg(it->position);
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char* buffer = new char[it->size + 1];
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*buffer = { 0 };
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m_file.read(buffer, it->size);
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m_materials->back().name = buffer;
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delete[] buffer;
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}
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// data
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else if(!strcmp("DATA", it->name))
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{
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m_file.seekg(it->position);
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// diffuse
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for (unsigned int i = 0; i < 4; i++)
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m_file.read(F2V(m_materials->back().diffuseColor[i]), sizeof(float));
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// specular
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for (unsigned int i = 0; i < 4; i++)
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m_file.read(F2V(m_materials->back().specularColor[i]), sizeof(float));
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// ambient
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for (unsigned int i = 0; i < 4; i++)
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m_file.read(F2V(m_materials->back().ambientColor[i]), sizeof(float));
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// shininess
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m_file.read(F2V(m_materials->back().shininess), sizeof(float));
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}
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// TODO: evaluate specular, gloss,.. and save values
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// attributes
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else if (!strcmp("ATRB", it->name))
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{
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// read the attributes
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m_file.seekg(it->position);
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std::uint8_t flag, render, data[2];
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m_file.read(F2V(flag), sizeof(flag));
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m_file.read(F2V(render), sizeof(render));
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m_file.read(F2V(data[0]), sizeof(data[0]));
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m_file.read(F2V(data[1]), sizeof(data[1]));
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// flags
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// 0: emissive
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// 1: glow
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// 2: single-sided transparency
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// 3: double-sided transparency
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// 4: hard-edged transparency
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// 5: per-pixel lighting
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// 6: additive transparency
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// 7: specular
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for (unsigned int i = 0; i < 8; i++)
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m_materials->back().flags[i] = (std::uint8_t)(flag << (7 - i)) >> 7;
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m_materials->back().transparent = m_materials->back().flags[2] || m_materials->back().flags[3] || m_materials->back().flags[4] || m_materials->back().flags[6];
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}
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// texture zero
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else if (!strcmp("TX0D", it->name))
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{
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// get the texture name
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m_file.seekg(it->position);
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char* buffer = new char[it->size + 1];
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*buffer = { 0 };
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m_file.read(buffer, it->size);
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m_materials->back().textureName = buffer;
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delete[] buffer;
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// load the texture if the name is not empty
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if (!m_materials->back().textureName.isEmpty())
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loadTexture(m_materials->back().texture, m_filepath + "/" + m_materials->back().textureName);
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}
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}
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}
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void MshFile::analyseModlChunks(Model * dataDestination, std::list<ChunkHeader*>& chunkList)
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{
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for (auto& it : chunkList)
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{
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// model type
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if (!strcmp("MTYP", it->name))
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{
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m_file.seekg(it->position);
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std::uint32_t tmp_type;
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m_file.read(F2V(tmp_type), sizeof(tmp_type));
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m_currentType = (ModelTyp)tmp_type;
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}
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// parent name
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else if (!strcmp("PRNT", it->name))
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{
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m_file.seekg(it->position);
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char* buffer = new char[it->size + 1];
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*buffer = { 0 };
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m_file.read(buffer, it->size);
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dataDestination->parent = buffer;
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delete[] buffer;
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}
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// model name
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else if (!strcmp("NAME", it->name))
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{
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m_file.seekg(it->position);
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char* buffer = new char[it->size + 1];
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*buffer = { 0 };
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m_file.read(buffer, it->size);
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dataDestination->name = buffer;
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delete[] buffer;
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}
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// render flags
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else if (!strcmp("FLGS", it->name))
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{
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m_file.seekg(it->position);
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m_file.read(F2V(m_currentRenderFlag), sizeof(m_currentRenderFlag));
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}
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// translation
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else if (!strcmp("TRAN", it->name))
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{
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float tmp_scale[3];
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float tmp_rotation[4];
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float tmp_trans[3];
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m_file.seekg(it->position);
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// read in the data
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for (int i = 0; i < 3; i++)
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m_file.read(F2V(tmp_scale[i]), sizeof(float));
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for (int i = 0; i < 4; i++)
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m_file.read(F2V(tmp_rotation[i]), sizeof(float));
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for (int i = 0; i < 3; i++)
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m_file.read(F2V(tmp_trans[i]), sizeof(float));
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// modify the matrix and quaternion
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dataDestination->m4x4Translation.scale(tmp_scale[0], tmp_scale[1], tmp_scale[2]);
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dataDestination->m4x4Translation.translate(tmp_trans[0], tmp_trans[1], tmp_trans[2]);
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dataDestination->quadRotation.setVector(QVector3D(tmp_rotation[0], tmp_rotation[1], tmp_rotation[2]));
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dataDestination->quadRotation.setScalar(tmp_rotation[3]);
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dataDestination->m4x4Translation = getParentMatrix(dataDestination->parent) * dataDestination->m4x4Translation;
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dataDestination->quadRotation = getParentRotation(dataDestination->parent) * dataDestination->quadRotation;
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}
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// geometry data
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else if (!strcmp("GEOM", it->name))
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{
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// don't get null, bone, shadowMesh and hidden mesh indices
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if (m_currentType == null || m_currentType == bone || m_currentType == shadowMesh || m_currentRenderFlag == 1)
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continue;
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// get all GEOM subchunks
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std::list<ChunkHeader*> tmp_geomChunks;
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loadChunks(tmp_geomChunks, it->position, it->size);
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// evaluate GEOM subchunks
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analyseGeomChunks(dataDestination, tmp_geomChunks);
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// clean up GEOM subchunks
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while (!tmp_geomChunks.empty())
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{
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ChunkHeader* cur = tmp_geomChunks.front();
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tmp_geomChunks.pop_front();
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delete cur;
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}
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}
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}
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}
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void MshFile::analyseGeomChunks(Model * dataDestination, std::list<ChunkHeader*>& chunkList)
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{
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for (auto& it : chunkList)
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{
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// segment
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if (!strcmp("SEGM", it->name))
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{
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// get all SEGM subchunks
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std::list<ChunkHeader*> tmp_segmChunks;
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loadChunks(tmp_segmChunks, it->position, it->size);
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// evaluate SEGM subchunks
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analyseSegmChunks(dataDestination, tmp_segmChunks);
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// clean up SEGM subchunk
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while (!tmp_segmChunks.empty())
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{
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ChunkHeader* cur = tmp_segmChunks.front();
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tmp_segmChunks.pop_front();
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delete cur;
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}
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}
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// cloth
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else if (!strcmp("CLTH", it->name))
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{
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// get all CLTH subchunks
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std::list<ChunkHeader*> tmp_clthChunks;
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loadChunks(tmp_clthChunks, it->position, it->size);
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// evaluate CLTH subchunks
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analyseClthChunks(dataDestination, tmp_clthChunks);
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// clean up CLTH subchunks
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while (!tmp_clthChunks.empty())
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{
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ChunkHeader* cur = tmp_clthChunks.front();
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tmp_clthChunks.pop_front();
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delete cur;
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}
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}
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}
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}
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void MshFile::analyseSegmChunks(Model * dataDestination, std::list<ChunkHeader*>& chunkList)
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{
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Segment* new_segment = new Segment;
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for (auto& it : chunkList)
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{
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// material index
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if (!strcmp("MATI", it->name))
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{
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m_file.seekg(it->position);
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m_file.read(F2V(new_segment->textureIndex), sizeof(new_segment->textureIndex));
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}
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// position list (vertex)
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else if (!strcmp("POSL", it->name))
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{
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readVertex(new_segment, it->position);
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}
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// normals
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else if (!strcmp("NRML", it->name))
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{
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std::uint32_t tmp_size;
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m_file.seekg(it->position);
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m_file.read(F2V(tmp_size), sizeof(tmp_size));
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if (tmp_size < new_segment->vertices.size())
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{
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emit sendMessage("WARNING: too less normals " + QString::number(tmp_size) + " < " + QString::number(new_segment->vertices.size()), 1);
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for (unsigned int i = new_segment->vertices.size(); i != tmp_size; i--)
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for (unsigned int j = 0; j < 3; j++)
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new_segment->vertices[i - 1].normal[j] = 0;
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}
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else if (tmp_size > new_segment->vertices.size())
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{
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emit sendMessage("WARNING: too many normals " + QString::number(tmp_size) + " > " + QString::number(new_segment->vertices.size()), 1);
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tmp_size = new_segment->vertices.size();
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}
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for (unsigned int i = 0; i < tmp_size; i++)
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for (unsigned int j = 0; j < 3; j++)
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m_file.read(F2V(new_segment->vertices[i].normal[j]), sizeof(float));
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}
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// uv
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else if (!strcmp("UV0L", it->name))
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{
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readUV(new_segment, it->position);
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}
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// polygons (indices into vertex/uv list)
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else if (!strcmp("STRP", it->name))
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{
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// jump to the data section and read the size;
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std::uint32_t tmp_size;
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m_file.seekg(it->position);
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m_file.read(F2V(tmp_size), sizeof(tmp_size));
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int highBitCount(0);
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QVector<GLuint> tmp_buffer;
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for (unsigned int i = 0; i < tmp_size; i++)
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{
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// ReadData
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std::uint16_t tmp_value;
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m_file.read(F2V(tmp_value), sizeof(tmp_value));
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// Check if highbit is set
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if (tmp_value >> 15)
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{
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highBitCount++;
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// remove the high bit, to get the actually value
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tmp_value = (std::uint16_t(tmp_value << 1) >> 1);
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}
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// save data
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tmp_buffer.push_back((GLuint)tmp_value);
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// if the last 2 highBits are set, it was a new poly
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if (highBitCount == 2)
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{
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// reset highBitCount
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highBitCount = 0;
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if (tmp_buffer.size() == 5)
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{
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for (size_t i = 0; i < 3; i++)
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new_segment->indices.push_back(tmp_buffer.takeFirst());
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}
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else if (tmp_buffer.size() > 5)
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|
{
|
|
unsigned int tmp_multiPolySize = tmp_buffer.size() - 2;
|
|
// for every triangle of the multi polygon..
|
|
for (unsigned int tri = 0; tri < tmp_multiPolySize - 2; tri++)
|
|
// ..calculate the edge indices
|
|
for (int triEdge = 0; triEdge < 3; triEdge++)
|
|
new_segment->indices.push_back(tmp_buffer[(tri + triEdge - ((tri % 2) * (triEdge - 1) * 2))]);
|
|
|
|
tmp_buffer.remove(0, tmp_multiPolySize);
|
|
}
|
|
|
|
} // if 2 high bits are set
|
|
|
|
} // for all values
|
|
|
|
// save the last polygon (no 2 high bit followed)
|
|
if (tmp_buffer.size() == 3)
|
|
{
|
|
for (size_t i = 0; i < 3; i++)
|
|
new_segment->indices.push_back(tmp_buffer.takeFirst());
|
|
}
|
|
else if (tmp_buffer.size() > 3)
|
|
{
|
|
unsigned int tmp_multiPolySize = tmp_buffer.size();
|
|
// for every triangle of the multi polygon..
|
|
for (unsigned int tri = 0; tri < tmp_multiPolySize - 2; tri++)
|
|
// ..calculate the edge indices
|
|
for (int triEdge = 0; triEdge < 3; triEdge++)
|
|
new_segment->indices.push_back(tmp_buffer[(tri + triEdge - ((tri % 2) * (triEdge - 1) * 2))]);
|
|
}
|
|
}
|
|
}
|
|
|
|
dataDestination->segmList.push_back(new_segment);
|
|
}
|
|
|
|
void MshFile::analyseClthChunks(Model * dataDestination, std::list<ChunkHeader*>& chunkList)
|
|
{
|
|
Segment* new_segment = new Segment;
|
|
|
|
for (auto& it : chunkList)
|
|
{
|
|
// texture name
|
|
if (!strcmp("CTEX", it->name))
|
|
{
|
|
// read the texture name
|
|
m_file.seekg(it->position);
|
|
char* buffer = new char[it->size + 1];
|
|
*buffer = { 0 };
|
|
m_file.read(buffer, it->size);
|
|
|
|
|
|
m_materials->push_back(Material());
|
|
m_materials->back().name = "Cloth Material";
|
|
m_materials->back().textureName = QString(buffer);
|
|
|
|
m_materials->back().shininess = 10;
|
|
|
|
if (!m_materials->back().textureName.isEmpty())
|
|
loadTexture(m_materials->back().texture, m_filepath + "/" + m_materials->back().textureName);
|
|
|
|
new_segment->textureIndex = m_materials->size() - 1;
|
|
|
|
delete[] buffer;
|
|
}
|
|
|
|
// position list (vertex)
|
|
else if (!strcmp("CPOS", it->name))
|
|
{
|
|
readVertex(new_segment, it->position);
|
|
}
|
|
|
|
// uv
|
|
else if (!strcmp("CUV0", it->name))
|
|
{
|
|
readUV(new_segment, it->position);
|
|
}
|
|
|
|
// triangles (indices into vertex/uv list)
|
|
else if (!strcmp("CMSH", it->name))
|
|
{
|
|
// jump to the data section and read the size;
|
|
std::uint32_t tmp_size;
|
|
m_file.seekg(it->position);
|
|
m_file.read(F2V(tmp_size), sizeof(tmp_size));
|
|
|
|
// for every triangle..
|
|
for (unsigned int i = 0; i < tmp_size * 3; i++)
|
|
{
|
|
std::uint32_t tmp_value;
|
|
m_file.read(F2V(tmp_value), sizeof(std::uint32_t));
|
|
|
|
new_segment->indices.push_back((GLuint)tmp_value);
|
|
}
|
|
}
|
|
}
|
|
|
|
dataDestination->segmList.push_back(new_segment);
|
|
}
|
|
|
|
void MshFile::readVertex(Segment * dataDestination, std::streampos position)
|
|
{
|
|
std::uint32_t tmp_size;
|
|
m_file.seekg(position);
|
|
m_file.read(F2V(tmp_size), sizeof(tmp_size));
|
|
|
|
for (unsigned int i = 0; i < tmp_size; i++)
|
|
{
|
|
float tmp[3];
|
|
for (unsigned int j = 0; j < 3; j++)
|
|
m_file.read(F2V(tmp[j]), sizeof(float));
|
|
|
|
VertexData new_data;
|
|
new_data.position = QVector3D(tmp[0], tmp[1], tmp[2]);
|
|
|
|
dataDestination->vertices.push_back(new_data);
|
|
}
|
|
}
|
|
|
|
void MshFile::readUV(Segment * dataDestination, std::streampos position)
|
|
{
|
|
std::uint32_t tmp_size;
|
|
m_file.seekg(position);
|
|
m_file.read(F2V(tmp_size), sizeof(tmp_size));
|
|
|
|
if (tmp_size < dataDestination->vertices.size())
|
|
{
|
|
emit sendMessage("WARNING: too less UVs " + QString::number(tmp_size) + " < " + QString::number(dataDestination->vertices.size()),1);
|
|
|
|
for (unsigned int i = dataDestination->vertices.size(); i != tmp_size; i--)
|
|
for (unsigned int j = 0; j < 2; j++)
|
|
dataDestination->vertices[i - 1].texCoord[j] = 0;
|
|
}
|
|
else if (tmp_size > dataDestination->vertices.size())
|
|
{
|
|
emit sendMessage("WARNING: too many UVs " + QString::number(tmp_size) + " > " + QString::number(dataDestination->vertices.size()), 1);
|
|
tmp_size = dataDestination->vertices.size();
|
|
}
|
|
|
|
for (unsigned int i = 0; i < tmp_size; i++)
|
|
for (unsigned int j = 0; j < 2; j++)
|
|
m_file.read(F2V(dataDestination->vertices[i].texCoord[j]), sizeof(float));
|
|
}
|
|
|
|
void MshFile::loadTexture(QOpenGLTexture *& destination, QString filepath)
|
|
{
|
|
bool loadSuccess(false);
|
|
QImage img = loadTga(filepath, loadSuccess);
|
|
|
|
if (!loadSuccess)
|
|
{
|
|
emit sendMessage("WARNING: texture not found or corrupted: " + m_materials->back().name, 1);
|
|
|
|
img = QImage(1, 1, QImage::Format_RGB32);
|
|
img.fill(QColor(m_materials->back().diffuseColor[0] * 255, m_materials->back().diffuseColor[1] * 255, m_materials->back().diffuseColor[2] * 255));
|
|
m_materials->back().textureName += " *";
|
|
}
|
|
|
|
// Load image to OglTexture
|
|
QOpenGLTexture* new_texture = new QOpenGLTexture(img.mirrored());
|
|
|
|
// Set nearest filtering mode for texture minification
|
|
new_texture->setMinificationFilter(QOpenGLTexture::Nearest);
|
|
|
|
// Set bilinear filtering mode for texture magnification
|
|
new_texture->setMagnificationFilter(QOpenGLTexture::Linear);
|
|
|
|
// Wrap texture coordinates by repeating
|
|
// f.ex. texture coordinate (1.1, 1.2) is same as (0.1, 0.2)
|
|
new_texture->setWrapMode(QOpenGLTexture::Repeat);
|
|
|
|
destination = new_texture;
|
|
}
|
|
|
|
QMatrix4x4 MshFile::getParentMatrix(std::string parent) const
|
|
{
|
|
QMatrix4x4 matrix;
|
|
|
|
for (auto& it : *m_models)
|
|
{
|
|
if (!strcmp(parent.c_str(), it->name.c_str()))
|
|
{
|
|
matrix = getParentMatrix(it->parent) * it->m4x4Translation;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return matrix;
|
|
}
|
|
|
|
QQuaternion MshFile::getParentRotation(std::string parent) const
|
|
{
|
|
QQuaternion rotation;
|
|
|
|
for (auto& it : *m_models)
|
|
{
|
|
if (!strcmp(parent.c_str(), it->name.c_str()))
|
|
{
|
|
rotation = getParentRotation(it->parent) * it->quadRotation;
|
|
break;
|
|
}
|
|
}
|
|
|
|
return rotation;
|
|
}
|