Backlog/lib/zphysics/libs/Jolt/Core/StreamOut.h

74 lines
1.8 KiB
C++

// Jolt Physics Library (https://github.com/jrouwe/JoltPhysics)
// SPDX-FileCopyrightText: 2021 Jorrit Rouwe
// SPDX-License-Identifier: MIT
#pragma once
JPH_NAMESPACE_BEGIN
/// Simple binary output stream
class StreamOut
{
public:
/// Virtual destructor
virtual ~StreamOut() = default;
/// Write a string of bytes to the binary stream
virtual void WriteBytes(const void *inData, size_t inNumBytes) = 0;
/// Returns true if there was an IO failure
virtual bool IsFailed() const = 0;
/// Write a primitive (e.g. float, int, etc.) to the binary stream
template <class T>
void Write(const T &inT)
{
WriteBytes(&inT, sizeof(inT));
}
/// Write a vector of primitives from the binary stream
template <class T, class A>
void Write(const std::vector<T, A> &inT)
{
typename Array<T>::size_type len = inT.size();
Write(len);
if (!IsFailed())
for (typename Array<T>::size_type i = 0; i < len; ++i)
Write(inT[i]);
}
/// Write a string to the binary stream (writes the number of characters and then the characters)
template <class Type, class Traits, class Allocator>
void Write(const std::basic_string<Type, Traits, Allocator> &inString)
{
typename std::basic_string<Type, Traits, Allocator>::size_type len = inString.size();
Write(len);
if (!IsFailed())
WriteBytes(inString.data(), len * sizeof(Type));
}
/// Write a Vec3 (don't write W)
void Write(const Vec3 &inVec)
{
WriteBytes(&inVec, 3 * sizeof(float));
}
/// Write a DVec3 (don't write W)
void Write(const DVec3 &inVec)
{
WriteBytes(&inVec, 3 * sizeof(double));
}
/// Write a DMat44 (don't write W component of translation)
void Write(const DMat44 &inVec)
{
Write(inVec.GetColumn4(0));
Write(inVec.GetColumn4(1));
Write(inVec.GetColumn4(2));
Write(inVec.GetTranslation());
}
};
JPH_NAMESPACE_END