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D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER

構造体
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サイズx64: 56 バイト / x86: 56 バイト

サイズ=各フィールドのバイト数(x64/x86 で異なる場合は x64/x86 と併記)。x64/x86 列=フィールドのバイトオフセット(HSPで dupptr / lpoke / wpoke 等に使用)。

フィールド

フィールド型サイズx64x86説明
DriverMatchingIdentifierD3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER32+0+0デシリアライズ可否判定に用いるドライバー照合識別子。
SerializedSizeInBytesIncludingHeaderULONGLONG8+32+32ヘッダーを含むシリアライズデータの総サイズ(バイト単位)。
DeserializedSizeInBytesULONGLONG8+40+40デシリアライズ後の加速構造サイズ(バイト単位)。
NumBottomLevelAccelerationStructurePointersAfterHeaderULONGLONG8+48+48ヘッダー直後に続くBLASポインターの数。

各言語での定義

#include <windows.h>

// D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER  (x64 32 / x86 32 バイト)
typedef struct D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER {
    GUID DriverOpaqueGUID;
    BYTE DriverOpaqueVersioningData[16];
} D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER;

// D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER  (x64 56 / x86 56 バイト)
typedef struct D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER {
    D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER DriverMatchingIdentifier;
    ULONGLONG SerializedSizeInBytesIncludingHeader;
    ULONGLONG DeserializedSizeInBytes;
    ULONGLONG NumBottomLevelAccelerationStructurePointersAfterHeader;
} D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER
{
    public Guid DriverOpaqueGUID;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 16)] public byte[] DriverOpaqueVersioningData;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER
{
    public D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER DriverMatchingIdentifier;
    public ulong SerializedSizeInBytesIncludingHeader;
    public ulong DeserializedSizeInBytes;
    public ulong NumBottomLevelAccelerationStructurePointersAfterHeader;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER
    Public DriverOpaqueGUID As Guid
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=16)> Public DriverOpaqueVersioningData() As Byte
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER
    Public DriverMatchingIdentifier As D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER
    Public SerializedSizeInBytesIncludingHeader As ULong
    Public DeserializedSizeInBytes As ULong
    Public NumBottomLevelAccelerationStructurePointersAfterHeader As ULong
End Structure
import ctypes
from ctypes import wintypes

class D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER(ctypes.Structure):
    _fields_ = [
        ("DriverOpaqueGUID", GUID),
        ("DriverOpaqueVersioningData", ctypes.c_ubyte * 16),
    ]

class D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER(ctypes.Structure):
    _fields_ = [
        ("DriverMatchingIdentifier", D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER),
        ("SerializedSizeInBytesIncludingHeader", ctypes.c_ulonglong),
        ("DeserializedSizeInBytes", ctypes.c_ulonglong),
        ("NumBottomLevelAccelerationStructurePointersAfterHeader", ctypes.c_ulonglong),
    ]
#[repr(C)]
pub struct D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER {
    pub DriverOpaqueGUID: GUID,
    pub DriverOpaqueVersioningData: [u8; 16],
}

#[repr(C)]
pub struct D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER {
    pub DriverMatchingIdentifier: D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER,
    pub SerializedSizeInBytesIncludingHeader: u64,
    pub DeserializedSizeInBytes: u64,
    pub NumBottomLevelAccelerationStructurePointersAfterHeader: u64,
}
import "golang.org/x/sys/windows"

type D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER struct {
	DriverOpaqueGUID windows.GUID
	DriverOpaqueVersioningData [16]byte
}

type D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER struct {
	DriverMatchingIdentifier D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER
	SerializedSizeInBytesIncludingHeader uint64
	DeserializedSizeInBytes uint64
	NumBottomLevelAccelerationStructurePointersAfterHeader uint64
}
type
  D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER = record
    DriverOpaqueGUID: TGUID;
    DriverOpaqueVersioningData: array[0..15] of Byte;
  end;

  D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER = record
    DriverMatchingIdentifier: D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER;
    SerializedSizeInBytesIncludingHeader: UInt64;
    DeserializedSizeInBytes: UInt64;
    NumBottomLevelAccelerationStructurePointersAfterHeader: UInt64;
  end;
const D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER = extern struct {
    DriverOpaqueGUID: GUID,
    DriverOpaqueVersioningData: [16]u8,
};

const D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER = extern struct {
    DriverMatchingIdentifier: D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER,
    SerializedSizeInBytesIncludingHeader: u64,
    DeserializedSizeInBytes: u64,
    NumBottomLevelAccelerationStructurePointersAfterHeader: u64,
};
type
  D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER {.bycopy.} = object
    DriverOpaqueGUID: GUID
    DriverOpaqueVersioningData: array[16, uint8]

  D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER {.bycopy.} = object
    DriverMatchingIdentifier: D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER
    SerializedSizeInBytesIncludingHeader: uint64
    DeserializedSizeInBytes: uint64
    NumBottomLevelAccelerationStructurePointersAfterHeader: uint64
struct D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER
{
    GUID DriverOpaqueGUID;
    ubyte[16] DriverOpaqueVersioningData;
}

struct D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER
{
    D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER DriverMatchingIdentifier;
    ulong SerializedSizeInBytesIncludingHeader;
    ulong DeserializedSizeInBytes;
    ulong NumBottomLevelAccelerationStructurePointersAfterHeader;
}

HSP用 定義

HSP3.7/3.8 は構造体機能が無いため4byte整数配列(dim)+peek/poke で操作(32/64bitでサイズ・位置が異なる場合はタブで分割)。IronHSP は NSTRUCT(#defstruct/stdim/->)で32/64bit共通。

; HSP3.7/3.8 は構造体機能が無いため、4byte整数の配列変数で操作します。(x64 レイアウト)
; D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER サイズ: 56 バイト(x64)
dim st, 14    ; 4byte整数×14(構造体サイズ 56 / 4 切り上げ)
; DriverMatchingIdentifier : D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER (+0, 32byte)  varptr(st)+0 を基点に操作(32byte:入れ子/配列)
; SerializedSizeInBytesIncludingHeader : ULONGLONG (+32, 8byte)  qpoke st,32,値 / qpeek(st,32)  ※IronHSPのみ。3.7/3.8は lpoke st,32,下位 : lpoke st,36,上位
; DeserializedSizeInBytes : ULONGLONG (+40, 8byte)  qpoke st,40,値 / qpeek(st,40)  ※IronHSPのみ。3.7/3.8は lpoke st,40,下位 : lpoke st,44,上位
; NumBottomLevelAccelerationStructurePointersAfterHeader : ULONGLONG (+48, 8byte)  qpoke st,48,値 / qpeek(st,48)  ※IronHSPのみ。3.7/3.8は lpoke st,48,下位 : lpoke st,52,上位
; ※4byte境界の整数は添字 st.N(N=オフセット/4)で読み書き可。それ以外は peek/poke 系を使用。
; IronHSP は NSTRUCT(構造体)をサポート。32bit/64bit どちらでも同じコードで動作します。
; ※GUID・入れ子構造体はデフォルト型でないため、依存する #defstruct を先に定義(下記に同梱)。
#defstruct global GUID, pack=1
    #field int Data1
    #field short Data2
    #field short Data3
    #field byte Data4 8
#endstruct

#defstruct global D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER
    #field GUID DriverOpaqueGUID
    #field byte DriverOpaqueVersioningData 16
#endstruct

#defstruct global D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER
    #field D3D12_SERIALIZED_DATA_DRIVER_MATCHING_IDENTIFIER DriverMatchingIdentifier
    #field int64 SerializedSizeInBytesIncludingHeader
    #field int64 DeserializedSizeInBytes
    #field int64 NumBottomLevelAccelerationStructurePointersAfterHeader
#endstruct

stdim st, D3D12_SERIALIZED_RAYTRACING_ACCELERATION_STRUCTURE_HEADER        ; NSTRUCT 変数を確保
st->SerializedSizeInBytesIncludingHeader = 100
mes "SerializedSizeInBytesIncludingHeader=" + st->SerializedSizeInBytesIncludingHeader