itdominator/SWBF2-Classic-Msh-Viewer
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now all MODL chunks from MSH2 are saved,

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searching only subchunks and not all behind,
finding corrupted size information and trying to continue
This commit is contained in:
Anakin 2016-10-10 12:34:01 +02:00
parent 4f1ff65f71
commit 59446f088f
2 changed files with 27 additions and 10 deletions
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7
MshViewer/Header/Object.h
View File

@ -2,10 +2,11 @@
#include <vector>
#include <list>
#include <fstream>
//#include <windows.h>
struct chunkHeader {
char name[5];
int size;
std::uint32_t size;
std::streampos position;
};
@ -18,12 +19,12 @@ public:
private:
std::list<chunkHeader*> lChunkMsh2;
std::list<chunkHeader*> lChunkModl;
std::list<std::list<chunkHeader*>*> lChunkModls;
std::fstream fsMesh;
private:
void loadChunks(std::list<chunkHeader*> &destination, std::streampos start, const char end[5]);
void loadChunks(std::list<chunkHeader*> &destination, std::streampos start, const std::uint32_t end);
public:

30
MshViewer/Source/Object.cpp
View File

@ -14,6 +14,7 @@ Object::Object(const char* path)
if (!fsMesh.is_open())
throw std::invalid_argument(std::string("file not found: ") += path);
// jump into msh2 todo: search for MSH2 if there is a shadowvolume
fsMesh.seekg(8);
char tempChunkName[5] = { 0 };
fsMesh.read(reinterpret_cast<char*>(&tempChunkName[0]), sizeof(tempChunkName) - 1);
@ -21,15 +22,20 @@ Object::Object(const char* path)
if (strcmp(tempChunkName, "MSH2"))
throw std::invalid_argument(std::string("corrupted file MSH2 expected instead of ") += tempChunkName);
fsMesh.seekg(4, std::ios_base::cur);
std::uint32_t tempSize;
fsMesh.read(reinterpret_cast<char*>(&tempSize), sizeof(tempSize));
loadChunks(lChunkMsh2, fsMesh.tellg(), "CL1L");
// get all sub chunks from MSH2
loadChunks(lChunkMsh2, fsMesh.tellg(), tempSize);
// search for all MODL Chunks
for (std::list<chunkHeader*>::iterator it = lChunkMsh2.begin(); it != lChunkMsh2.end(); it++)
{
if (!strcmp("MODL", (*it)->name))
{
loadChunks(lChunkModl, (*it)->position, "CL1L");
std::list<chunkHeader*>* tempModlList = new std::list<chunkHeader*>;
loadChunks(*tempModlList, (*it)->position, (*it)->size);
lChunkModls.push_back(tempModlList);
}
}
@ -47,9 +53,9 @@ Object::~Object()
/////////////////////////////////////////////////////////////////////////
// private functions
void Object::loadChunks(std::list<chunkHeader*>& destination, std::streampos start, const char end[5])
void Object::loadChunks(std::list<chunkHeader*>& destination, std::streampos start, const std::uint32_t end)
{
// Jump into Mesh2
// jump to first chunk
fsMesh.seekg(start);
do
@ -64,9 +70,19 @@ void Object::loadChunks(std::list<chunkHeader*>& destination, std::streampos sta
fsMesh.seekg(tempHeader->size, std::ios_base::cur);
if (!std::strcmp(tempHeader->name, end))
// reached end
if (fsMesh.tellg() - start == end)
break;
} while (fsMesh.good());
// error. Maybe the size information is corrupted
if (!fsMesh.good())
{
std::cout << "WARNING: corrupted file. Trying to continue" << std::endl;
fsMesh.clear();
break;
}
} while (true);
std::cout << "got all chunks, totaly found: " << destination.size() << std::endl;