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144 lines
2.9 KiB
C++
144 lines
2.9 KiB
C++
#include "nifstream.hpp"
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//For error reporting
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#include "niffile.hpp"
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namespace Nif
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{
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//Private functions
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uint8_t NIFStream::read_byte()
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{
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uint8_t byte;
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inp->read((char*)&byte, 1);
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return byte;
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}
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uint16_t NIFStream::read_le16()
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{
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uint8_t buffer[2];
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inp->read((char*)buffer, 2);
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return buffer[0] | (buffer[1]<<8);
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}
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uint32_t NIFStream::read_le32()
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{
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uint8_t buffer[4];
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inp->read((char*)buffer, 4);
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return buffer[0] | (buffer[1]<<8) | (buffer[2]<<16) | (buffer[3]<<24);
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}
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float NIFStream::read_le32f()
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{
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union {
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uint32_t i;
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float f;
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} u = { read_le32() };
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return u.f;
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}
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//Public functions
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osg::Vec2f NIFStream::getVector2()
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{
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osg::Vec2f vec;
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for(size_t i = 0;i < 2;i++)
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vec._v[i] = getFloat();
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return vec;
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}
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osg::Vec3f NIFStream::getVector3()
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{
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osg::Vec3f vec;
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for(size_t i = 0;i < 3;i++)
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vec._v[i] = getFloat();
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return vec;
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}
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osg::Vec4f NIFStream::getVector4()
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{
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osg::Vec4f vec;
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for(size_t i = 0;i < 4;i++)
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vec._v[i] = getFloat();
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return vec;
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}
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Matrix3 NIFStream::getMatrix3()
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{
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Matrix3 mat;
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for(size_t i = 0;i < 3;i++)
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{
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for(size_t j = 0;j < 3;j++)
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mat.mValues[i][j] = getFloat();
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}
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return mat;
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}
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osg::Quat NIFStream::getQuaternion()
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{
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osg::Quat quat;
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quat.w() = getFloat();
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quat.x() = getFloat();
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quat.y() = getFloat();
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quat.z() = getFloat();
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return quat;
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}
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Transformation NIFStream::getTrafo()
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{
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Transformation t;
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t.pos = getVector3();
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t.rotation = getMatrix3();
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t.scale = getFloat();
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return t;
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}
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std::string NIFStream::getString(size_t length)
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{
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std::vector<char> str (length+1, 0);
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inp->read(&str[0], length);
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return &str[0];
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}
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std::string NIFStream::getString()
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{
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size_t size = read_le32();
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return getString(size);
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}
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std::string NIFStream::getVersionString()
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{
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std::string result;
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std::getline(*inp, result);
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return result;
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}
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void NIFStream::getUShorts(osg::VectorGLushort* vec, size_t size)
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{
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vec->reserve(size);
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for(size_t i = 0;i < size;i++)
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vec->push_back(getUShort());
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}
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void NIFStream::getFloats(std::vector<float> &vec, size_t size)
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{
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vec.resize(size);
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for(size_t i = 0;i < vec.size();i++)
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vec[i] = getFloat();
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}
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void NIFStream::getVector2s(osg::Vec2Array* vec, size_t size)
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{
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vec->reserve(size);
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for(size_t i = 0;i < size;i++)
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vec->push_back(getVector2());
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}
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void NIFStream::getVector3s(osg::Vec3Array* vec, size_t size)
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{
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vec->reserve(size);
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for(size_t i = 0;i < size;i++)
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vec->push_back(getVector3());
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}
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void NIFStream::getVector4s(osg::Vec4Array* vec, size_t size)
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{
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vec->reserve(size);
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for(size_t i = 0;i < size;i++)
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vec->push_back(getVector4());
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}
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void NIFStream::getQuaternions(std::vector<osg::Quat> &quat, size_t size)
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{
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quat.resize(size);
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for(size_t i = 0;i < quat.size();i++)
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quat[i] = getQuaternion();
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}
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}
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