gluScaleImage

関数

画像データを指定サイズへ拡大縮小して変換する。

DLLGLU32.dll呼出規約winapi

シグネチャ

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

INT gluScaleImage(
    DWORD format,
    INT widthin,
    INT heightin,
    DWORD typein,
    const void* datain,
    INT widthout,
    INT heightout,
    DWORD typeout,
    void* dataout
);

パラメーター

名前	型	方向	説明
format	DWORD	in	入出力ピクセルの色形式。GL_RGBAなど。
widthin	INT	in	入力画像の幅(ピクセル)。
heightin	INT	in	入力画像の高さ(ピクセル)。
typein	DWORD	in	入力ピクセルデータの型。GL_UNSIGNED_BYTEなど。
datain	void*	in	入力画像データへのポインタ。
widthout	INT	in	出力画像の幅(ピクセル)。
heightout	INT	in	出力画像の高さ(ピクセル)。
typeout	DWORD	in	出力ピクセルデータの型。
dataout	void*	inout	拡大縮小結果を書き込む出力バッファへのポインタ。

戻り値の型: INT

各言語での呼び出し定義

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

INT gluScaleImage(
    DWORD format,
    INT widthin,
    INT heightin,
    DWORD typein,
    const void* datain,
    INT widthout,
    INT heightout,
    DWORD typeout,
    void* dataout
);

[DllImport("GLU32.dll", ExactSpelling = true)]
static extern int gluScaleImage(
    uint format,   // DWORD
    int widthin,   // INT
    int heightin,   // INT
    uint typein,   // DWORD
    IntPtr datain,   // void*
    int widthout,   // INT
    int heightout,   // INT
    uint typeout,   // DWORD
    IntPtr dataout   // void* in/out
);

<DllImport("GLU32.dll", ExactSpelling:=True)>
Public Shared Function gluScaleImage(
    format As UInteger,   ' DWORD
    widthin As Integer,   ' INT
    heightin As Integer,   ' INT
    typein As UInteger,   ' DWORD
    datain As IntPtr,   ' void*
    widthout As Integer,   ' INT
    heightout As Integer,   ' INT
    typeout As UInteger,   ' DWORD
    dataout As IntPtr   ' void* in/out
) As Integer
End Function

' format : DWORD
' widthin : INT
' heightin : INT
' typein : DWORD
' datain : void*
' widthout : INT
' heightout : INT
' typeout : DWORD
' dataout : void* in/out
Declare PtrSafe Function gluScaleImage Lib "glu32" ( _
    ByVal format As Long, _
    ByVal widthin As Long, _
    ByVal heightin As Long, _
    ByVal typein As Long, _
    ByVal datain As LongPtr, _
    ByVal widthout As Long, _
    ByVal heightout As Long, _
    ByVal typeout As Long, _
    ByVal dataout As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

gluScaleImage = ctypes.windll.glu32.gluScaleImage
gluScaleImage.restype = ctypes.c_int
gluScaleImage.argtypes = [
    wintypes.DWORD,  # format : DWORD
    ctypes.c_int,  # widthin : INT
    ctypes.c_int,  # heightin : INT
    wintypes.DWORD,  # typein : DWORD
    ctypes.POINTER(None),  # datain : void*
    ctypes.c_int,  # widthout : INT
    ctypes.c_int,  # heightout : INT
    wintypes.DWORD,  # typeout : DWORD
    ctypes.POINTER(None),  # dataout : void* in/out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('GLU32.dll')
gluScaleImage = Fiddle::Function.new(
  lib['gluScaleImage'],
  [
    -Fiddle::TYPE_INT,  # format : DWORD
    Fiddle::TYPE_INT,  # widthin : INT
    Fiddle::TYPE_INT,  # heightin : INT
    -Fiddle::TYPE_INT,  # typein : DWORD
    Fiddle::TYPE_VOIDP,  # datain : void*
    Fiddle::TYPE_INT,  # widthout : INT
    Fiddle::TYPE_INT,  # heightout : INT
    -Fiddle::TYPE_INT,  # typeout : DWORD
    Fiddle::TYPE_VOIDP,  # dataout : void* in/out
  ],
  Fiddle::TYPE_INT)

#[link(name = "glu32")]
extern "system" {
    fn gluScaleImage(
        format: u32,  // DWORD
        widthin: i32,  // INT
        heightin: i32,  // INT
        typein: u32,  // DWORD
        datain: *const (),  // void*
        widthout: i32,  // INT
        heightout: i32,  // INT
        typeout: u32,  // DWORD
        dataout: *mut ()  // void* in/out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("GLU32.dll")]
public static extern int gluScaleImage(uint format, int widthin, int heightin, uint typein, IntPtr datain, int widthout, int heightout, uint typeout, IntPtr dataout);
"@
$api = Add-Type -MemberDefinition $sig -Name 'GLU32_gluScaleImage' -Namespace Win32 -PassThru
# $api::gluScaleImage(format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout)

#uselib "GLU32.dll"
#func global gluScaleImage "gluScaleImage" sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr, sptr
; gluScaleImage format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout   ; 戻り値は stat
; format : DWORD -> "sptr"
; widthin : INT -> "sptr"
; heightin : INT -> "sptr"
; typein : DWORD -> "sptr"
; datain : void* -> "sptr"
; widthout : INT -> "sptr"
; heightout : INT -> "sptr"
; typeout : DWORD -> "sptr"
; dataout : void* 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。

#uselib "GLU32.dll"
#cfunc global gluScaleImage "gluScaleImage" int, int, int, int, sptr, int, int, int, sptr
; res = gluScaleImage(format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout)
; format : DWORD -> "int"
; widthin : INT -> "int"
; heightin : INT -> "int"
; typein : DWORD -> "int"
; datain : void* -> "sptr"
; widthout : INT -> "int"
; heightout : INT -> "int"
; typeout : DWORD -> "int"
; dataout : void* in/out -> "sptr"

; INT gluScaleImage(DWORD format, INT widthin, INT heightin, DWORD typein, void* datain, INT widthout, INT heightout, DWORD typeout, void* dataout)
#uselib "GLU32.dll"
#cfunc global gluScaleImage "gluScaleImage" int, int, int, int, intptr, int, int, int, intptr
; res = gluScaleImage(format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout)
; format : DWORD -> "int"
; widthin : INT -> "int"
; heightin : INT -> "int"
; typein : DWORD -> "int"
; datain : void* -> "intptr"
; widthout : INT -> "int"
; heightout : INT -> "int"
; typeout : DWORD -> "int"
; dataout : void* in/out -> "intptr"

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

var (
	glu32 = windows.NewLazySystemDLL("GLU32.dll")
	procgluScaleImage = glu32.NewProc("gluScaleImage")
)

// format (DWORD), widthin (INT), heightin (INT), typein (DWORD), datain (void*), widthout (INT), heightout (INT), typeout (DWORD), dataout (void* in/out)
r1, _, err := procgluScaleImage.Call(
	uintptr(format),
	uintptr(widthin),
	uintptr(heightin),
	uintptr(typein),
	uintptr(datain),
	uintptr(widthout),
	uintptr(heightout),
	uintptr(typeout),
	uintptr(dataout),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // INT

function gluScaleImage(
  format: DWORD;   // DWORD
  widthin: Integer;   // INT
  heightin: Integer;   // INT
  typein: DWORD;   // DWORD
  datain: Pointer;   // void*
  widthout: Integer;   // INT
  heightout: Integer;   // INT
  typeout: DWORD;   // DWORD
  dataout: Pointer   // void* in/out
): Integer; stdcall;
  external 'GLU32.dll' name 'gluScaleImage';

result := DllCall("GLU32\gluScaleImage"
    , "UInt", format   ; DWORD
    , "Int", widthin   ; INT
    , "Int", heightin   ; INT
    , "UInt", typein   ; DWORD
    , "Ptr", datain   ; void*
    , "Int", widthout   ; INT
    , "Int", heightout   ; INT
    , "UInt", typeout   ; DWORD
    , "Ptr", dataout   ; void* in/out
    , "Int")   ; return: INT

●gluScaleImage(format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout) = DLL("GLU32.dll", "int gluScaleImage(dword, int, int, dword, void*, int, int, dword, void*)")
# 呼び出し: gluScaleImage(format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout)
# format : DWORD -> "dword"
# widthin : INT -> "int"
# heightin : INT -> "int"
# typein : DWORD -> "dword"
# datain : void* -> "void*"
# widthout : INT -> "int"
# heightout : INT -> "int"
# typeout : DWORD -> "dword"
# dataout : void* 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)。

const std = @import("std");

extern "glu32" fn gluScaleImage(
    format: u32, // DWORD
    widthin: i32, // INT
    heightin: i32, // INT
    typein: u32, // DWORD
    datain: ?*anyopaque, // void*
    widthout: i32, // INT
    heightout: i32, // INT
    typeout: u32, // DWORD
    dataout: ?*anyopaque // void* in/out
) callconv(std.os.windows.WINAPI) i32;

proc gluScaleImage(
    format: uint32,  # DWORD
    widthin: int32,  # INT
    heightin: int32,  # INT
    typein: uint32,  # DWORD
    datain: pointer,  # void*
    widthout: int32,  # INT
    heightout: int32,  # INT
    typeout: uint32,  # DWORD
    dataout: pointer  # void* in/out
): int32 {.importc: "gluScaleImage", stdcall, dynlib: "GLU32.dll".}

pragma(lib, "glu32");
extern(Windows)
int gluScaleImage(
    uint format,   // DWORD
    int widthin,   // INT
    int heightin,   // INT
    uint typein,   // DWORD
    void* datain,   // void*
    int widthout,   // INT
    int heightout,   // INT
    uint typeout,   // DWORD
    void* dataout   // void* in/out
);

ccall((:gluScaleImage, "GLU32.dll"), stdcall, Int32,
      (UInt32, Int32, Int32, UInt32, Ptr{Cvoid}, Int32, Int32, UInt32, Ptr{Cvoid}),
      format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout)
# format : DWORD -> UInt32
# widthin : INT -> Int32
# heightin : INT -> Int32
# typein : DWORD -> UInt32
# datain : void* -> Ptr{Cvoid}
# widthout : INT -> Int32
# heightout : INT -> Int32
# typeout : DWORD -> UInt32
# dataout : void* in/out -> Ptr{Cvoid}
# stdcall は 32bit のみ意味を持つ(x64 では無視)。

local ffi = require("ffi")
ffi.cdef[[
int32_t gluScaleImage(
    uint32_t format,
    int32_t widthin,
    int32_t heightin,
    uint32_t typein,
    void* datain,
    int32_t widthout,
    int32_t heightout,
    uint32_t typeout,
    void* dataout);
]]
local glu32 = ffi.load("glu32")
-- glu32.gluScaleImage(format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout)
-- format : DWORD
-- widthin : INT
-- heightin : INT
-- typein : DWORD
-- datain : void*
-- widthout : INT
-- heightout : INT
-- typeout : DWORD
-- dataout : void* in/out
-- 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 gluScaleImage = lib.func('__stdcall', 'gluScaleImage', 'int32_t', ['uint32_t', 'int32_t', 'int32_t', 'uint32_t', 'void *', 'int32_t', 'int32_t', 'uint32_t', 'void *']);
// gluScaleImage(format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout)
// format : DWORD -> 'uint32_t'
// widthin : INT -> 'int32_t'
// heightin : INT -> 'int32_t'
// typein : DWORD -> 'uint32_t'
// datain : void* -> 'void *'
// widthout : INT -> 'int32_t'
// heightout : INT -> 'int32_t'
// typeout : DWORD -> 'uint32_t'
// dataout : void* in/out -> 'void *'
// 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", {
  gluScaleImage: { parameters: ["u32", "i32", "i32", "u32", "pointer", "i32", "i32", "u32", "pointer"], result: "i32" },
});
// lib.symbols.gluScaleImage(format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout)
// format : DWORD -> "u32"
// widthin : INT -> "i32"
// heightin : INT -> "i32"
// typein : DWORD -> "u32"
// datain : void* -> "pointer"
// widthout : INT -> "i32"
// heightout : INT -> "i32"
// typeout : DWORD -> "u32"
// dataout : void* in/out -> "pointer"
// 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
int32_t gluScaleImage(
    uint32_t format,
    int32_t widthin,
    int32_t heightin,
    uint32_t typein,
    void* datain,
    int32_t widthout,
    int32_t heightout,
    uint32_t typeout,
    void* dataout);
C, "GLU32.dll");
// $ffi->gluScaleImage(format, widthin, heightin, typein, datain, widthout, heightout, typeout, dataout);
// format : DWORD
// widthin : INT
// heightin : INT
// typein : DWORD
// datain : void*
// widthout : INT
// heightout : INT
// typeout : DWORD
// dataout : void* in/out
// 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);
    int gluScaleImage(
        int format,   // DWORD
        int widthin,   // INT
        int heightin,   // INT
        int typein,   // DWORD
        Pointer datain,   // void*
        int widthout,   // INT
        int heightout,   // INT
        int typeout,   // DWORD
        Pointer dataout   // void* in/out
    );
}

@[Link("glu32")]
lib LibGLU32
  fun gluScaleImage = gluScaleImage(
    format : UInt32,   # DWORD
    widthin : Int32,   # INT
    heightin : Int32,   # INT
    typein : UInt32,   # DWORD
    datain : Void*,   # void*
    widthout : Int32,   # INT
    heightout : Int32,   # INT
    typeout : UInt32,   # DWORD
    dataout : Void*   # void* in/out
  ) : Int32
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 gluScaleImageNative = Int32 Function(Uint32, Int32, Int32, Uint32, Pointer<Void>, Int32, Int32, Uint32, Pointer<Void>);
typedef gluScaleImageDart = int Function(int, int, int, int, Pointer<Void>, int, int, int, Pointer<Void>);
final gluScaleImage = DynamicLibrary.open('GLU32.dll')
    .lookupFunction<gluScaleImageNative, gluScaleImageDart>('gluScaleImage');
// format : DWORD -> Uint32
// widthin : INT -> Int32
// heightin : INT -> Int32
// typein : DWORD -> Uint32
// datain : void* -> Pointer<Void>
// widthout : INT -> Int32
// heightout : INT -> Int32
// typeout : DWORD -> Uint32
// dataout : void* in/out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function gluScaleImage(
  format: DWORD;   // DWORD
  widthin: Integer;   // INT
  heightin: Integer;   // INT
  typein: DWORD;   // DWORD
  datain: Pointer;   // void*
  widthout: Integer;   // INT
  heightout: Integer;   // INT
  typeout: DWORD;   // DWORD
  dataout: Pointer   // void* in/out
): Integer; stdcall;
  external 'GLU32.dll' name 'gluScaleImage';

import Foreign
import Foreign.C.Types
import Foreign.C.String

foreign import stdcall safe "gluScaleImage"
  c_gluScaleImage :: Word32 -> Int32 -> Int32 -> Word32 -> Ptr () -> Int32 -> Int32 -> Word32 -> Ptr () -> IO Int32
-- format : DWORD -> Word32
-- widthin : INT -> Int32
-- heightin : INT -> Int32
-- typein : DWORD -> Word32
-- datain : void* -> Ptr ()
-- widthout : INT -> Int32
-- heightout : INT -> Int32
-- typeout : DWORD -> Word32
-- dataout : void* in/out -> Ptr ()
-- 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 gluscaleimage =
  foreign "gluScaleImage"
    (uint32_t @-> int32_t @-> int32_t @-> uint32_t @-> (ptr void) @-> int32_t @-> int32_t @-> uint32_t @-> (ptr void) @-> returning int32_t)
(* format : DWORD -> uint32_t *)
(* widthin : INT -> int32_t *)
(* heightin : INT -> int32_t *)
(* typein : DWORD -> uint32_t *)
(* datain : void* -> (ptr void) *)
(* widthout : INT -> int32_t *)
(* heightout : INT -> int32_t *)
(* typeout : DWORD -> uint32_t *)
(* dataout : void* in/out -> (ptr void) *)
(* 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 ("gluScaleImage" glu-scale-image :convention :stdcall) :int32
  (format :uint32)   ; DWORD
  (widthin :int32)   ; INT
  (heightin :int32)   ; INT
  (typein :uint32)   ; DWORD
  (datain :pointer)   ; void*
  (widthout :int32)   ; INT
  (heightout :int32)   ; INT
  (typeout :uint32)   ; DWORD
  (dataout :pointer))   ; void* in/out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $gluScaleImage = Win32::API::More->new('GLU32',
    'int gluScaleImage(DWORD format, int widthin, int heightin, DWORD typein, LPVOID datain, int widthout, int heightout, DWORD typeout, LPVOID dataout)');
# my $ret = $gluScaleImage->Call($format, $widthin, $heightin, $typein, $datain, $widthout, $heightout, $typeout, $dataout);
# format : DWORD -> DWORD
# widthin : INT -> int
# heightin : INT -> int
# typein : DWORD -> DWORD
# datain : void* -> LPVOID
# widthout : INT -> int
# heightout : INT -> int
# typeout : DWORD -> DWORD
# dataout : void* in/out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。