DataContainer PackageHandle::ReadAsset(const std::string& _assetName)
{
std::ifstream fs;
std::vector<std::string> path = SplitPathName(_assetName);
Asset* a = root->ReadAsset(path, 0);
if (a == nullptr)
return DataContainer(PackageResult::FILE_NOT_FOUND);
fs.open(packageName.c_str(), std::ifstream::binary);
char* result = (char*)allocator->FlatAllocate(a->GetSize());
if (result == nullptr)
return DataContainer(PackageResult::OUT_OF_MEMORY);
fs.seekg(a->GetStart());
fs.read(result, a->GetSize());
fs.close();
return DataContainer(result, a->GetSize());
}
ImageFormat_TGA::ImageFormat_TGA(const Asset& asset):
image_(0)
{
int size=asset.GetSize();
char* buffer=new char[size];
asset.Open();
asset.Read(buffer,size);
asset.Close();
image_=new tga_image;
tga_read_from_Buffer(static_cast<tga_image*>(image_),buffer);
delete[] buffer;
}
bool ImageFormat_TGA::TestAsset(const Asset& asset)
{
// Check if the footer says that this is a TGA file
if (asset.Open())
{
asset.Seek(-18,Asset::SEEK_FROM_END);
char buffer[16];
asset.Read(buffer,16);
asset.Close();
if (StrNCmp(buffer,"TRUEVISION-XFILE",16)==0)
{
return true;
}
}
// If the footer doesn't match, this might still be a tga file (version < 2)
// so try and load it as a tga and see if it works...
int size=asset.GetSize();
char* buffer=new char[size];
asset.Open();
asset.Read(buffer,size);
asset.Close();
tga_image image;
tga_read_from_Buffer(&image,buffer);
delete[] buffer;
// Check to see if the header data makes sense...
if (image.width<32767 && image.height<32767 && image.image_data && (image.pixel_depth==8 || image.pixel_depth==24 || image.pixel_depth==16 || image.pixel_depth==32))
{
// Yeah, sure, this looks like proper data, so give thumbs up and hope for the best
return true;
}
tga_free_buffers(&image);
// Nope, not likely to be a TGA
return false;
}
AudioFormat_YM::AudioFormat_YM(const Asset& asset):
ymFile_(0),
chunkStart_(0),
chunkEnd_(0)
{
if (asset.Open())
{
int size=asset.GetSize();
unsigned char* buffer=static_cast<unsigned char*>(Malloc(size));
asset.Read(buffer,size);
asset.Close();
ymFile_=new CYmMusic();
ymFile_->loadMemory(buffer,size);
ymFile_->setLoopMode(true);
ymFile_->play();
Free(buffer);
}
// Report missing file
#ifdef _DEBUG
else
{
const char* filename=asset.GetFilename().GetString();
if (filename)
{
char errorMessage[1024];
SNPrintF(errorMessage,1024,"File not found: %s",filename);
Assert(false,errorMessage);
}
else
{
Assert(false,"An asset could not be accessed.");
}
}
#endif
}
