gluProject

関数

オブジェクト座標をウィンドウ座標へ投影変換する。

DLLGLU32.dll呼出規約winapi

シグネチャ

// GLU32.dll
#include <windows.h>

INT gluProject(
    DOUBLE objx,
    DOUBLE objy,
    DOUBLE objz,
    const DOUBLE* modelMatrix,
    const DOUBLE* projMatrix,
    const INT* viewport,
    DOUBLE* winx,
    DOUBLE* winy,
    DOUBLE* winz
);

パラメーター

名前	型	方向
objx	DOUBLE	in
objy	DOUBLE	in
objz	DOUBLE	in
modelMatrix	DOUBLE*	in
projMatrix	DOUBLE*	in
viewport	INT*	in
winx	DOUBLE*	inout
winy	DOUBLE*	inout
winz	DOUBLE*	inout

戻り値の型: INT

各言語での呼び出し定義

// GLU32.dll
#include <windows.h>

INT gluProject(
    DOUBLE objx,
    DOUBLE objy,
    DOUBLE objz,
    const DOUBLE* modelMatrix,
    const DOUBLE* projMatrix,
    const INT* viewport,
    DOUBLE* winx,
    DOUBLE* winy,
    DOUBLE* winz
);

[DllImport("GLU32.dll", ExactSpelling = true)]
static extern int gluProject(
    double objx,   // DOUBLE
    double objy,   // DOUBLE
    double objz,   // DOUBLE
    ref double modelMatrix,   // DOUBLE*
    ref double projMatrix,   // DOUBLE*
    ref int viewport,   // INT*
    ref double winx,   // DOUBLE* in/out
    ref double winy,   // DOUBLE* in/out
    ref double winz   // DOUBLE* in/out
);

<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Function gluProject(
    objx As Double,   ' DOUBLE
    objy As Double,   ' DOUBLE
    objz As Double,   ' DOUBLE
    ByRef modelMatrix As Double,   ' DOUBLE*
    ByRef projMatrix As Double,   ' DOUBLE*
    ByRef viewport As Integer,   ' INT*
    ByRef winx As Double,   ' DOUBLE* in/out
    ByRef winy As Double,   ' DOUBLE* in/out
    ByRef winz As Double   ' DOUBLE* in/out
) As Integer
End Function

' objx : DOUBLE
' objy : DOUBLE
' objz : DOUBLE
' modelMatrix : DOUBLE*
' projMatrix : DOUBLE*
' viewport : INT*
' winx : DOUBLE* in/out
' winy : DOUBLE* in/out
' winz : DOUBLE* in/out
Declare PtrSafe Function gluProject Lib "glu32" ( _
    ByVal objx As Double, _
    ByVal objy As Double, _
    ByVal objz As Double, _
    ByRef modelMatrix As Double, _
    ByRef projMatrix As Double, _
    ByRef viewport As Long, _
    ByRef winx As Double, _
    ByRef winy As Double, _
    ByRef winz As Double) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

gluProject = ctypes.windll.glu32.gluProject
gluProject.restype = ctypes.c_int
gluProject.argtypes = [
    ctypes.c_double,  # objx : DOUBLE
    ctypes.c_double,  # objy : DOUBLE
    ctypes.c_double,  # objz : DOUBLE
    ctypes.POINTER(ctypes.c_double),  # modelMatrix : DOUBLE*
    ctypes.POINTER(ctypes.c_double),  # projMatrix : DOUBLE*
    ctypes.POINTER(ctypes.c_int),  # viewport : INT*
    ctypes.POINTER(ctypes.c_double),  # winx : DOUBLE* in/out
    ctypes.POINTER(ctypes.c_double),  # winy : DOUBLE* in/out
    ctypes.POINTER(ctypes.c_double),  # winz : DOUBLE* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GLU32.dll')
gluProject = Fiddle::Function.new(
  lib['gluProject'],
  [
    Fiddle::TYPE_DOUBLE,  # objx : DOUBLE
    Fiddle::TYPE_DOUBLE,  # objy : DOUBLE
    Fiddle::TYPE_DOUBLE,  # objz : DOUBLE
    Fiddle::TYPE_VOIDP,  # modelMatrix : DOUBLE*
    Fiddle::TYPE_VOIDP,  # projMatrix : DOUBLE*
    Fiddle::TYPE_VOIDP,  # viewport : INT*
    Fiddle::TYPE_VOIDP,  # winx : DOUBLE* in/out
    Fiddle::TYPE_VOIDP,  # winy : DOUBLE* in/out
    Fiddle::TYPE_VOIDP,  # winz : DOUBLE* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "glu32")]
extern "system" {
    fn gluProject(
        objx: f64,  // DOUBLE
        objy: f64,  // DOUBLE
        objz: f64,  // DOUBLE
        modelMatrix: *const f64,  // DOUBLE*
        projMatrix: *const f64,  // DOUBLE*
        viewport: *const i32,  // INT*
        winx: *mut f64,  // DOUBLE* in/out
        winy: *mut f64,  // DOUBLE* in/out
        winz: *mut f64  // DOUBLE* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GLU32.dll")]
public static extern int gluProject(double objx, double objy, double objz, ref double modelMatrix, ref double projMatrix, ref int viewport, ref double winx, ref double winy, ref double winz);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluProject' -Namespace Win32 -PassThru
# $api::gluProject(objx, objy, objz, modelMatrix, projMatrix, viewport, winx, winy, winz)

#uselib "GLU32.dll"
#func global gluProject "gluProject" double, double, double, sptr, sptr, sptr, sptr, sptr, sptr
; gluProject objx, objy, objz, varptr(modelMatrix), varptr(projMatrix), varptr(viewport), varptr(winx), varptr(winy), varptr(winz)   ; 戻り値は stat
; objx : DOUBLE -> "double"
; objy : DOUBLE -> "double"
; objz : DOUBLE -> "double"
; modelMatrix : DOUBLE* -> "sptr"
; projMatrix : DOUBLE* -> "sptr"
; viewport : INT* -> "sptr"
; winx : DOUBLE* in/out -> "sptr"
; winy : DOUBLE* in/out -> "sptr"
; winz : DOUBLE* in/out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

出力引数:

#uselib "GLU32.dll"
#cfunc global gluProject "gluProject" double, double, double, var, var, var, var, var, var
; res = gluProject(objx, objy, objz, modelMatrix, projMatrix, viewport, winx, winy, winz)
; objx : DOUBLE -> "double"
; objy : DOUBLE -> "double"
; objz : DOUBLE -> "double"
; modelMatrix : DOUBLE* -> "var"
; projMatrix : DOUBLE* -> "var"
; viewport : INT* -> "var"
; winx : DOUBLE* in/out -> "var"
; winy : DOUBLE* in/out -> "var"
; winz : DOUBLE* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。#uselib "GLU32.dll"
#cfunc global gluProject "gluProject" double, double, double, sptr, sptr, sptr, sptr, sptr, sptr
; res = gluProject(objx, objy, objz, varptr(modelMatrix), varptr(projMatrix), varptr(viewport), varptr(winx), varptr(winy), varptr(winz))
; objx : DOUBLE -> "double"
; objy : DOUBLE -> "double"
; objz : DOUBLE -> "double"
; modelMatrix : DOUBLE* -> "sptr"
; projMatrix : DOUBLE* -> "sptr"
; viewport : INT* -> "sptr"
; winx : DOUBLE* in/out -> "sptr"
; winy : DOUBLE* in/out -> "sptr"
; winz : DOUBLE* in/out -> "sptr"
; ※出力/バッファ引数はポインタ方式(token=sptr / 呼び出しは varptr(変数))。

出力引数:

; INT gluProject(DOUBLE objx, DOUBLE objy, DOUBLE objz, DOUBLE* modelMatrix, DOUBLE* projMatrix, INT* viewport, DOUBLE* winx, DOUBLE* winy, DOUBLE* winz)
#uselib "GLU32.dll"
#cfunc global gluProject "gluProject" double, double, double, var, var, var, var, var, var
; res = gluProject(objx, objy, objz, modelMatrix, projMatrix, viewport, winx, winy, winz)
; objx : DOUBLE -> "double"
; objy : DOUBLE -> "double"
; objz : DOUBLE -> "double"
; modelMatrix : DOUBLE* -> "var"
; projMatrix : DOUBLE* -> "var"
; viewport : INT* -> "var"
; winx : DOUBLE* in/out -> "var"
; winy : DOUBLE* in/out -> "var"
; winz : DOUBLE* in/out -> "var"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。; INT gluProject(DOUBLE objx, DOUBLE objy, DOUBLE objz, DOUBLE* modelMatrix, DOUBLE* projMatrix, INT* viewport, DOUBLE* winx, DOUBLE* winy, DOUBLE* winz)
#uselib "GLU32.dll"
#cfunc global gluProject "gluProject" double, double, double, intptr, intptr, intptr, intptr, intptr, intptr
; res = gluProject(objx, objy, objz, varptr(modelMatrix), varptr(projMatrix), varptr(viewport), varptr(winx), varptr(winy), varptr(winz))
; objx : DOUBLE -> "double"
; objy : DOUBLE -> "double"
; objz : DOUBLE -> "double"
; modelMatrix : DOUBLE* -> "intptr"
; projMatrix : DOUBLE* -> "intptr"
; viewport : INT* -> "intptr"
; winx : DOUBLE* in/out -> "intptr"
; winy : DOUBLE* in/out -> "intptr"
; winz : DOUBLE* in/out -> "intptr"
; ※出力/バッファ引数はポインタ方式(token=intptr / 呼び出しは varptr(変数))。

import (
	"math"
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluProject = glu32.NewProc("gluProject")
)

// objx (DOUBLE), objy (DOUBLE), objz (DOUBLE), modelMatrix (DOUBLE*), projMatrix (DOUBLE*), viewport (INT*), winx (DOUBLE* in/out), winy (DOUBLE* in/out), winz (DOUBLE* in/out)
r1, _, err := procgluProject.Call(
	uintptr(math.Float64bits(objx)),
	uintptr(math.Float64bits(objy)),
	uintptr(math.Float64bits(objz)),
	uintptr(modelMatrix),
	uintptr(projMatrix),
	uintptr(viewport),
	uintptr(winx),
	uintptr(winy),
	uintptr(winz),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT
// 注意: float/double 引数は proc.Call では XMM レジスタに渡せません。
// windows.SyscallN(proc.Addr(), math.Float64bits(x), ...) もしくは cgo を使用してください。

function gluProject(
  objx: Double;   // DOUBLE
  objy: Double;   // DOUBLE
  objz: Double;   // DOUBLE
  modelMatrix: Pointer;   // DOUBLE*
  projMatrix: Pointer;   // DOUBLE*
  viewport: Pointer;   // INT*
  winx: Pointer;   // DOUBLE* in/out
  winy: Pointer;   // DOUBLE* in/out
  winz: Pointer   // DOUBLE* in/out
): Integer; stdcall;
  external 'GLU32.dll' name 'gluProject';

result := DllCall("GLU32\gluProject"
    , "Double", objx   ; DOUBLE
    , "Double", objy   ; DOUBLE
    , "Double", objz   ; DOUBLE
    , "Ptr", modelMatrix   ; DOUBLE*
    , "Ptr", projMatrix   ; DOUBLE*
    , "Ptr", viewport   ; INT*
    , "Ptr", winx   ; DOUBLE* in/out
    , "Ptr", winy   ; DOUBLE* in/out
    , "Ptr", winz   ; DOUBLE* in/out
    , "Int")   ; return: INT

●gluProject(objx, objy, objz, modelMatrix, projMatrix, viewport, winx, winy, winz) = DLL("GLU32.dll", "int gluProject(double, double, double, void*, void*, void*, void*, void*, void*)")
# 呼び出し: gluProject(objx, objy, objz, modelMatrix, projMatrix, viewport, winx, winy, winz)
# objx : DOUBLE -> "double"
# objy : DOUBLE -> "double"
# objz : DOUBLE -> "double"
# modelMatrix : DOUBLE* -> "void*"
# projMatrix : DOUBLE* -> "void*"
# viewport : INT* -> "void*"
# winx : DOUBLE* in/out -> "void*"
# winy : DOUBLE* in/out -> "void*"
# winz : DOUBLE* in/out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。