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#ifndef __FN_GENERIC_ARRAY_REF_H__
#define __FN_GENERIC_ARRAY_REF_H__
#include "FN_cpp_type.h"
#include "BLI_array_ref.h"
namespace FN {
using BLI::ArrayRef;
using BLI::MutableArrayRef;
class GenericArrayRef {
private:
const CPPType *m_type;
const void *m_buffer;
uint m_size;
public:
GenericArrayRef(const CPPType &type) : GenericArrayRef(type, nullptr, 0)
{
}
GenericArrayRef(const CPPType &type, const void *buffer, uint size)
: m_type(&type), m_buffer(buffer), m_size(size)
{
BLI_assert(buffer != nullptr || size == 0);
BLI_assert(type.pointer_has_valid_alignment(buffer));
}
template<typename T>
GenericArrayRef(ArrayRef<T> array)
: GenericArrayRef(CPP_TYPE<T>(), (const void *)array.begin(), array.size())
{
}
const CPPType &type() const
{
return *m_type;
}
uint size() const
{
return m_size;
}
const void *buffer() const
{
return m_buffer;
}
const void *operator[](uint index) const
{
BLI_assert(index < m_size);
return POINTER_OFFSET(m_buffer, m_type->size() * index);
}
template<typename T> ArrayRef<T> as_typed_ref() const
{
BLI_assert(CPP_TYPE<T>() == *m_type);
return ArrayRef<T>((const T *)m_buffer, m_size);
}
};
class GenericMutableArrayRef {
private:
const CPPType *m_type;
void *m_buffer;
uint m_size;
public:
GenericMutableArrayRef(const CPPType &type) : GenericMutableArrayRef(type, nullptr, 0)
{
}
GenericMutableArrayRef(const CPPType &type, void *buffer, uint size)
: m_type(&type), m_buffer(buffer), m_size(size)
{
BLI_assert(buffer != nullptr || size == 0);
BLI_assert(type.pointer_has_valid_alignment(buffer));
}
template<typename T>
GenericMutableArrayRef(MutableArrayRef<T> array)
: GenericMutableArrayRef(CPP_TYPE<T>(), (void *)array.begin(), array.size())
{
}
operator GenericArrayRef() const
{
return GenericArrayRef(*m_type, m_buffer, m_size);
}
void destruct_all()
{
m_type->destruct_n(m_buffer, m_size);
}
void destruct_indices(IndexMask indices)
{
m_type->destruct_indices(m_buffer, indices);
}
GenericMutableArrayRef slice(uint start, uint size)
{
BLI_assert(start + size <= m_size);
return GenericMutableArrayRef(*m_type, POINTER_OFFSET(m_buffer, start * m_type->size()), size);
}
const CPPType &type() const
{
return *m_type;
}
void *buffer()
{
return m_buffer;
}
uint size() const
{
return m_size;
}
void default_initialize(IndexMask indices)
{
m_type->construct_default_indices(m_buffer, indices);
}
void fill__uninitialized(const void *value)
{
m_type->fill_uninitialized(value, m_buffer, m_size);
}
void fill__initialized(const void *value)
{
m_type->fill_initialized(value, m_buffer, m_size);
}
void copy_in__uninitialized(uint index, const void *src)
{
BLI_assert(index < m_size);
void *dst = POINTER_OFFSET(m_buffer, m_type->size() * index);
m_type->copy_to_uninitialized(src, dst);
}
void copy_in__initialized(uint index, const void *src)
{
BLI_assert(index < m_size);
void *dst = POINTER_OFFSET(m_buffer, m_type->size() * index);
m_type->copy_to_initialized(src, dst);
}
static void RelocateUninitialized(GenericMutableArrayRef from, GenericMutableArrayRef to);
void *operator[](uint index)
{
BLI_assert(index < m_size);
return POINTER_OFFSET(m_buffer, m_type->size() * index);
}
template<typename T> MutableArrayRef<T> as_typed_ref()
{
BLI_assert(CPP_TYPE<T>() == *m_type);
return MutableArrayRef<T>((T *)m_buffer, m_size);
}
};
} // namespace FN
#endif /* __FN_GENERIC_ARRAY_REF_H__ */
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