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gluPerspective
関数視野角とアスペクト比から透視投影行列を設定する。
シグネチャ
// GLU32.dll
#include <windows.h>
void gluPerspective(
DOUBLE fovy,
DOUBLE aspect,
DOUBLE zNear,
DOUBLE zFar
);パラメーター
| 名前 | 型 | 方向 | 説明 |
|---|---|---|---|
| fovy | DOUBLE | in | y方向の視野角を度単位で指定する。 |
| aspect | DOUBLE | in | 視野のアスペクト比(幅÷高さ)。 |
| zNear | DOUBLE | in | 視点から近クリップ面までの距離。正値。 |
| zFar | DOUBLE | in | 視点から遠クリップ面までの距離。正値。 |
戻り値の型: void
各言語での呼び出し定義
// GLU32.dll
#include <windows.h>
void gluPerspective(
DOUBLE fovy,
DOUBLE aspect,
DOUBLE zNear,
DOUBLE zFar
);[DllImport("GLU32.dll", ExactSpelling = true)]
static extern void gluPerspective(
double fovy, // DOUBLE
double aspect, // DOUBLE
double zNear, // DOUBLE
double zFar // DOUBLE
);<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Sub gluPerspective(
fovy As Double, ' DOUBLE
aspect As Double, ' DOUBLE
zNear As Double, ' DOUBLE
zFar As Double ' DOUBLE
)
End Sub' fovy : DOUBLE
' aspect : DOUBLE
' zNear : DOUBLE
' zFar : DOUBLE
Declare PtrSafe Sub gluPerspective Lib "glu32" ( _
ByVal fovy As Double, _
ByVal aspect As Double, _
ByVal zNear As Double, _
ByVal zFar As Double)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。import ctypes
from ctypes import wintypes
gluPerspective = ctypes.windll.glu32.gluPerspective
gluPerspective.restype = None
gluPerspective.argtypes = [
ctypes.c_double, # fovy : DOUBLE
ctypes.c_double, # aspect : DOUBLE
ctypes.c_double, # zNear : DOUBLE
ctypes.c_double, # zFar : DOUBLE
]require 'fiddle'
require 'fiddle/import'
lib = Fiddle.dlopen('GLU32.dll')
gluPerspective = Fiddle::Function.new(
lib['gluPerspective'],
[
Fiddle::TYPE_DOUBLE, # fovy : DOUBLE
Fiddle::TYPE_DOUBLE, # aspect : DOUBLE
Fiddle::TYPE_DOUBLE, # zNear : DOUBLE
Fiddle::TYPE_DOUBLE, # zFar : DOUBLE
],
Fiddle::TYPE_VOID)#[link(name = "glu32")]
extern "system" {
fn gluPerspective(
fovy: f64, // DOUBLE
aspect: f64, // DOUBLE
zNear: f64, // DOUBLE
zFar: f64 // DOUBLE
);
}
// crates: windows-sys provides ready-made bindings for this API.$sig = @"
[DllImport("GLU32.dll")]
public static extern void gluPerspective(double fovy, double aspect, double zNear, double zFar);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluPerspective' -Namespace Win32 -PassThru
# $api::gluPerspective(fovy, aspect, zNear, zFar)#uselib "GLU32.dll"
#func global gluPerspective "gluPerspective" double, double, double, double
; gluPerspective fovy, aspect, zNear, zFar
; fovy : DOUBLE -> "double"
; aspect : DOUBLE -> "double"
; zNear : DOUBLE -> "double"
; zFar : DOUBLE -> "double"#uselib "GLU32.dll"
#func global gluPerspective "gluPerspective" double, double, double, double
; gluPerspective fovy, aspect, zNear, zFar
; fovy : DOUBLE -> "double"
; aspect : DOUBLE -> "double"
; zNear : DOUBLE -> "double"
; zFar : DOUBLE -> "double"; void gluPerspective(DOUBLE fovy, DOUBLE aspect, DOUBLE zNear, DOUBLE zFar)
#uselib "GLU32.dll"
#func global gluPerspective "gluPerspective" double, double, double, double
; gluPerspective fovy, aspect, zNear, zFar
; fovy : DOUBLE -> "double"
; aspect : DOUBLE -> "double"
; zNear : DOUBLE -> "double"
; zFar : DOUBLE -> "double"import (
"math"
"golang.org/x/sys/windows"
"unsafe"
)
var (
glu32 = windows.NewLazySystemDLL("GLU32.dll")
procgluPerspective = glu32.NewProc("gluPerspective")
)
// fovy (DOUBLE), aspect (DOUBLE), zNear (DOUBLE), zFar (DOUBLE)
r1, _, err := procgluPerspective.Call(
uintptr(math.Float64bits(fovy)),
uintptr(math.Float64bits(aspect)),
uintptr(math.Float64bits(zNear)),
uintptr(math.Float64bits(zFar)),
)
_ = err // syscall.Errno (valid when the call sets last-error)
_ = r1 // void
// 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。procedure gluPerspective(
fovy: Double; // DOUBLE
aspect: Double; // DOUBLE
zNear: Double; // DOUBLE
zFar: Double // DOUBLE
); stdcall;
external 'GLU32.dll' name 'gluPerspective';result := DllCall("GLU32\gluPerspective"
, "Double", fovy ; DOUBLE
, "Double", aspect ; DOUBLE
, "Double", zNear ; DOUBLE
, "Double", zFar ; DOUBLE
, "Int") ; return: void●gluPerspective(fovy, aspect, zNear, zFar) = DLL("GLU32.dll", "int gluPerspective(double, double, double, double)")
# 呼び出し: gluPerspective(fovy, aspect, zNear, zFar)
# fovy : DOUBLE -> "double"
# aspect : DOUBLE -> "double"
# zNear : DOUBLE -> "double"
# zFar : DOUBLE -> "double"
# 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)。const std = @import("std");
extern "glu32" fn gluPerspective(
fovy: f64, // DOUBLE
aspect: f64, // DOUBLE
zNear: f64, // DOUBLE
zFar: f64 // DOUBLE
) callconv(std.os.windows.WINAPI) void;proc gluPerspective(
fovy: float64, # DOUBLE
aspect: float64, # DOUBLE
zNear: float64, # DOUBLE
zFar: float64 # DOUBLE
) {.importc: "gluPerspective", stdcall, dynlib: "GLU32.dll".}pragma(lib, "glu32");
extern(Windows)
void gluPerspective(
double fovy, // DOUBLE
double aspect, // DOUBLE
double zNear, // DOUBLE
double zFar // DOUBLE
);ccall((:gluPerspective, "GLU32.dll"), stdcall, Cvoid,
(Float64, Float64, Float64, Float64),
fovy, aspect, zNear, zFar)
# fovy : DOUBLE -> Float64
# aspect : DOUBLE -> Float64
# zNear : DOUBLE -> Float64
# zFar : DOUBLE -> Float64
# stdcall は 32bit のみ意味を持つ(x64 では無視)。local ffi = require("ffi")
ffi.cdef[[
void gluPerspective(
double fovy,
double aspect,
double zNear,
double zFar);
]]
local glu32 = ffi.load("glu32")
-- glu32.gluPerspective(fovy, aspect, zNear, zFar)
-- fovy : DOUBLE
-- aspect : DOUBLE
-- zNear : DOUBLE
-- zFar : DOUBLE
-- 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。const koffi = require('koffi');
const lib = koffi.load('GLU32.dll');
const gluPerspective = lib.func('__stdcall', 'gluPerspective', 'void', ['double', 'double', 'double', 'double']);
// gluPerspective(fovy, aspect, zNear, zFar)
// fovy : DOUBLE -> 'double'
// aspect : DOUBLE -> 'double'
// zNear : DOUBLE -> 'double'
// zFar : DOUBLE -> 'double'
// 出力ポインタは koffi.out(...) で包む。構造体は koffi.struct で定義。const lib = Deno.dlopen("GLU32.dll", {
gluPerspective: { parameters: ["f64", "f64", "f64", "f64"], result: "void" },
});
// lib.symbols.gluPerspective(fovy, aspect, zNear, zFar)
// fovy : DOUBLE -> "f64"
// aspect : DOUBLE -> "f64"
// zNear : DOUBLE -> "f64"
// zFar : DOUBLE -> "f64"
// 文字列引数は "buffer"(NUL 終端のバイト列を Uint8Array で渡す)。
// 値渡し構造体は { struct: [ ...field types... ] } を使用。<?php
$ffi = FFI::cdef(<<<C
void gluPerspective(
double fovy,
double aspect,
double zNear,
double zFar);
C, "GLU32.dll");
// $ffi->gluPerspective(fovy, aspect, zNear, zFar);
// fovy : DOUBLE
// aspect : DOUBLE
// zNear : DOUBLE
// zFar : DOUBLE
// 構造体/GUIDへのポインタは cdef が通るよう void* で表記(実型は各引数コメント参照)。値渡し構造体・enum は対応する typedef を cdef に追加すること。
// WINAPI(stdcall): x64 では呼出規約が統一されるため問題なし。x86 では __stdcall 対応のラッパが必要な場合あり。import com.sun.jna.*;
import com.sun.jna.ptr.*;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;
public interface Glu32 extends StdCallLibrary {
Glu32 INSTANCE = Native.load("glu32", Glu32.class);
void gluPerspective(
double fovy, // DOUBLE
double aspect, // DOUBLE
double zNear, // DOUBLE
double zFar // DOUBLE
);
}@[Link("glu32")]
lib LibGLU32
fun gluPerspective = gluPerspective(
fovy : Float64, # DOUBLE
aspect : Float64, # DOUBLE
zNear : Float64, # DOUBLE
zFar : Float64 # DOUBLE
) : Void
end
# 構造体/GUID/enum は lib 内に対応する型定義が必要。
# 呼出規約: x64 は規約統一のため OK。x86(32bit)は WINAPI=stdcall だが Crystal の fun に stdcall 付与構文がなく非対応。import 'dart:ffi';
import 'package:ffi/ffi.dart';
typedef gluPerspectiveNative = Void Function(Double, Double, Double, Double);
typedef gluPerspectiveDart = void Function(double, double, double, double);
final gluPerspective = DynamicLibrary.open('GLU32.dll')
.lookupFunction<gluPerspectiveNative, gluPerspectiveDart>('gluPerspective');
// fovy : DOUBLE -> Double
// aspect : DOUBLE -> Double
// zNear : DOUBLE -> Double
// zFar : DOUBLE -> Double
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。{$mode objfpc}{$H+}
procedure gluPerspective(
fovy: Double; // DOUBLE
aspect: Double; // DOUBLE
zNear: Double; // DOUBLE
zFar: Double // DOUBLE
); stdcall;
external 'GLU32.dll' name 'gluPerspective';import Foreign
import Foreign.C.Types
import Foreign.C.String
foreign import stdcall safe "gluPerspective"
c_gluPerspective :: CDouble -> CDouble -> CDouble -> CDouble -> IO ()
-- fovy : DOUBLE -> CDouble
-- aspect : DOUBLE -> CDouble
-- zNear : DOUBLE -> CDouble
-- zFar : DOUBLE -> CDouble
-- 要 GHC(Windows)。stdcall は x64 では ccall として扱われる。ブロックする API は safe 呼び出し推奨。open Ctypes
open Foreign
let gluperspective =
foreign "gluPerspective"
(double @-> double @-> double @-> double @-> returning void)
(* fovy : DOUBLE -> double *)
(* aspect : DOUBLE -> double *)
(* zNear : DOUBLE -> double *)
(* zFar : DOUBLE -> double *)
(* foreign は cdecl 前提。x64 Windows では WINAPI と一致。構造体は ctypes structure を定義のこと。 *)(cffi:define-foreign-library glu32 (t "GLU32.dll"))
(cffi:use-foreign-library glu32)
(cffi:defcfun ("gluPerspective" glu-perspective :convention :stdcall) :void
(fovy :double) ; DOUBLE
(aspect :double) ; DOUBLE
(z-near :double) ; DOUBLE
(z-far :double)) ; DOUBLE
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。use Win32::API;
my $gluPerspective = Win32::API::More->new('GLU32',
'void gluPerspective(double fovy, double aspect, double zNear, double zFar)');
# my $ret = $gluPerspective->Call($fovy, $aspect, $zNear, $zFar);
# fovy : DOUBLE -> double
# aspect : DOUBLE -> double
# zNear : DOUBLE -> double
# zFar : DOUBLE -> double
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。