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// Copyright 2009-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
#pragma once
#include <cstdint>
#include <iostream>
namespace embree
{
/* The type of a node. */
enum NodeType : uint8_t
{
NODE_TYPE_MIXED = 0x0, // identifies a mixed internal node where each child can have a different type
NODE_TYPE_INTERNAL = 0x0, // internal BVH node with 6 children
NODE_TYPE_INSTANCE = 0x1, // instance leaf
NODE_TYPE_PROCEDURAL = 0x3, // procedural leaf
NODE_TYPE_QUAD = 0x4, // quad leaf
NODE_TYPE_INVALID = 0x7 // indicates invalid node
};
/* output operator for NodeType */
inline std::ostream& operator<<(std::ostream& _cout, const NodeType& _type)
{
#if !defined(__RTRT_GSIM)
switch (_type)
{
case NODE_TYPE_INTERNAL: _cout << "INTERNAL"; break;
case NODE_TYPE_INSTANCE: _cout << "INSTANCE"; break;
case NODE_TYPE_PROCEDURAL: _cout << "PROCEDURAL"; break;
case NODE_TYPE_QUAD: _cout << "QUAD"; break;
case NODE_TYPE_INVALID: _cout << "INVALID"; break;
default: _cout << "INVALID NODE TYPE"; break;
}
#endif
return _cout;
};
/*
Sub-type definition for each NodeType
*/
enum SubType : uint8_t
{
SUB_TYPE_NONE = 0,
/* sub-type for NODE_TYPE_INTERNAL */
SUB_TYPE_INTERNAL6 = 0x00, // Xe+: internal node with 6 children
/* Sub-type for NODE_TYPE_QUAD */
SUB_TYPE_QUAD = 0, // Xe+: standard quad leaf (64 bytes)
/* Sub-type for NODE_TYPE_PROCEDURAL */
SUB_TYPE_PROCEDURAL = 0, // Xe+: standard procedural leaf
};
}
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