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COLORSPACE_TRANSFORM_3x4

構造体
サイズx64: 49204 バイト / x86: 49204 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
ColorMatrix3x4FLOAT48+0+03行4列の色変換行列を表す浮動小数点配列。線形変換と平行移動を含む。
ScalarMultiplierFLOAT4+48+48色値全体に乗じるスカラ係数を表す浮動小数点値。
LookupTable1DGAMMA_RAMP_RGB49152+52+52適用する1次元ルックアップテーブルをGAMMA_RAMP_RGBで保持する。

各言語での定義

#include <windows.h>

// GAMMA_RAMP_RGB  (x64 12 / x86 12 バイト)
typedef struct GAMMA_RAMP_RGB {
    FLOAT Red;
    FLOAT Green;
    FLOAT Blue;
} GAMMA_RAMP_RGB;

// COLORSPACE_TRANSFORM_3x4  (x64 49204 / x86 49204 バイト)
typedef struct COLORSPACE_TRANSFORM_3x4 {
    FLOAT ColorMatrix3x4[12];
    FLOAT ScalarMultiplier;
    GAMMA_RAMP_RGB LookupTable1D[4096];
} COLORSPACE_TRANSFORM_3x4;
using System;
using System.Runtime.InteropServices;

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct GAMMA_RAMP_RGB
{
    public float Red;
    public float Green;
    public float Blue;
}

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct COLORSPACE_TRANSFORM_3x4
{
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 12)] public float[] ColorMatrix3x4;
    public float ScalarMultiplier;
    [MarshalAs(UnmanagedType.ByValArray, SizeConst = 4096)] public GAMMA_RAMP_RGB[] LookupTable1D;
}
Imports System.Runtime.InteropServices

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure GAMMA_RAMP_RGB
    Public Red As Single
    Public Green As Single
    Public Blue As Single
End Structure

<StructLayout(LayoutKind.Sequential, CharSet:=CharSet.Unicode)>
Public Structure COLORSPACE_TRANSFORM_3x4
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=12)> Public ColorMatrix3x4() As Single
    Public ScalarMultiplier As Single
    <MarshalAs(UnmanagedType.ByValArray, SizeConst:=4096)> Public LookupTable1D() As GAMMA_RAMP_RGB
End Structure
import ctypes
from ctypes import wintypes

class GAMMA_RAMP_RGB(ctypes.Structure):
    _fields_ = [
        ("Red", ctypes.c_float),
        ("Green", ctypes.c_float),
        ("Blue", ctypes.c_float),
    ]

class COLORSPACE_TRANSFORM_3x4(ctypes.Structure):
    _fields_ = [
        ("ColorMatrix3x4", ctypes.c_float * 12),
        ("ScalarMultiplier", ctypes.c_float),
        ("LookupTable1D", GAMMA_RAMP_RGB * 4096),
    ]
#[repr(C)]
pub struct GAMMA_RAMP_RGB {
    pub Red: f32,
    pub Green: f32,
    pub Blue: f32,
}

#[repr(C)]
pub struct COLORSPACE_TRANSFORM_3x4 {
    pub ColorMatrix3x4: [f32; 12],
    pub ScalarMultiplier: f32,
    pub LookupTable1D: [GAMMA_RAMP_RGB; 4096],
}
import "golang.org/x/sys/windows"

type GAMMA_RAMP_RGB struct {
	Red float32
	Green float32
	Blue float32
}

type COLORSPACE_TRANSFORM_3x4 struct {
	ColorMatrix3x4 [12]float32
	ScalarMultiplier float32
	LookupTable1D [4096]GAMMA_RAMP_RGB
}
type
  GAMMA_RAMP_RGB = record
    Red: Single;
    Green: Single;
    Blue: Single;
  end;

  COLORSPACE_TRANSFORM_3x4 = record
    ColorMatrix3x4: array[0..11] of Single;
    ScalarMultiplier: Single;
    LookupTable1D: array[0..4095] of GAMMA_RAMP_RGB;
  end;
const GAMMA_RAMP_RGB = extern struct {
    Red: f32,
    Green: f32,
    Blue: f32,
};

const COLORSPACE_TRANSFORM_3x4 = extern struct {
    ColorMatrix3x4: [12]f32,
    ScalarMultiplier: f32,
    LookupTable1D: [4096]GAMMA_RAMP_RGB,
};
type
  GAMMA_RAMP_RGB {.bycopy.} = object
    Red: float32
    Green: float32
    Blue: float32

  COLORSPACE_TRANSFORM_3x4 {.bycopy.} = object
    ColorMatrix3x4: array[12, float32]
    ScalarMultiplier: float32
    LookupTable1D: array[4096, GAMMA_RAMP_RGB]
struct GAMMA_RAMP_RGB
{
    float Red;
    float Green;
    float Blue;
}

struct COLORSPACE_TRANSFORM_3x4
{
    float[12] ColorMatrix3x4;
    float ScalarMultiplier;
    GAMMA_RAMP_RGB[4096] LookupTable1D;
}

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)
; COLORSPACE_TRANSFORM_3x4 サイズ: 49204 バイト(x64)
dim st, 12301    ; 4byte整数×12301(構造体サイズ 49204 / 4 切り上げ)
; ColorMatrix3x4 : FLOAT (+0, 48byte)  varptr(st)+0 を基点に操作(48byte:入れ子/配列)
; ScalarMultiplier : FLOAT (+48, 4byte)  st.12 = 値  /  値 = st.12   (lpoke/lpeek も可)
; LookupTable1D : GAMMA_RAMP_RGB (+52, 49152byte)  varptr(st)+52 を基点に操作(49152byte:入れ子/配列)
; ※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 GAMMA_RAMP_RGB
    #field float Red
    #field float Green
    #field float Blue
#endstruct

#defstruct global COLORSPACE_TRANSFORM_3x4
    #field float ColorMatrix3x4 12
    #field float ScalarMultiplier
    #field GAMMA_RAMP_RGB LookupTable1D 4096
#endstruct

stdim st, COLORSPACE_TRANSFORM_3x4        ; NSTRUCT 変数を確保
st->ScalarMultiplier = 100
mes "ScalarMultiplier=" + st->ScalarMultiplier