D2D1SinCos

関数

指定角度の正弦と余弦を同時に算出する。

DLLd2d1.dll呼出規約winapi

シグネチャ

// d2d1.dll
#include <windows.h>

void D2D1SinCos(
    FLOAT angle,
    FLOAT* s,
    FLOAT* c
);

パラメーター

名前	型	方向
angle	FLOAT	in
s	FLOAT*	out
c	FLOAT*	out

戻り値の型: void

各言語での呼び出し定義

// d2d1.dll
#include <windows.h>

void D2D1SinCos(
    FLOAT angle,
    FLOAT* s,
    FLOAT* c
);

[DllImport("d2d1.dll", ExactSpelling = true)]
static extern void D2D1SinCos(
    float angle,   // FLOAT
    out float s,   // FLOAT* out
    out float c   // FLOAT* out
);

<DllImport("d2d1.dll", ExactSpelling:=True)>
Public Shared Sub D2D1SinCos(
    angle As Single,   ' FLOAT
    <Out> ByRef s As Single,   ' FLOAT* out
    <Out> ByRef c As Single   ' FLOAT* out
)
End Sub

' angle : FLOAT
' s : FLOAT* out
' c : FLOAT* out
Declare PtrSafe Sub D2D1SinCos Lib "d2d1" ( _
    ByVal angle As Single, _
    ByRef s As Single, _
    ByRef c As Single)
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

D2D1SinCos = ctypes.windll.d2d1.D2D1SinCos
D2D1SinCos.restype = None
D2D1SinCos.argtypes = [
    ctypes.c_float,  # angle : FLOAT
    ctypes.POINTER(ctypes.c_float),  # s : FLOAT* out
    ctypes.POINTER(ctypes.c_float),  # c : FLOAT* out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('d2d1.dll')
D2D1SinCos = Fiddle::Function.new(
  lib['D2D1SinCos'],
  [
    Fiddle::TYPE_FLOAT,  # angle : FLOAT
    Fiddle::TYPE_VOIDP,  # s : FLOAT* out
    Fiddle::TYPE_VOIDP,  # c : FLOAT* out
  ],
  Fiddle::TYPE_VOID)

#[link(name = "d2d1")]
extern "system" {
    fn D2D1SinCos(
        angle: f32,  // FLOAT
        s: *mut f32,  // FLOAT* out
        c: *mut f32  // FLOAT* out
    );
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("d2d1.dll")]
public static extern void D2D1SinCos(float angle, out float s, out float c);
"@
$api = Add-Type -MemberDefinition $sig -Name 'd2d1_D2D1SinCos' -Namespace Win32 -PassThru
# $api::D2D1SinCos(angle, s, c)

#uselib "d2d1.dll"
#func global D2D1SinCos "D2D1SinCos" float, sptr, sptr
; D2D1SinCos angle, varptr(s), varptr(c)
; angle : FLOAT -> "float"
; s : FLOAT* out -> "sptr"
; c : FLOAT* out -> "sptr"

出力引数:

#uselib "d2d1.dll"
#func global D2D1SinCos "D2D1SinCos" float, var, var
; D2D1SinCos angle, s, c
; angle : FLOAT -> "float"
; s : FLOAT* out -> "var"
; c : FLOAT* 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 "d2d1.dll"
#func global D2D1SinCos "D2D1SinCos" float, sptr, sptr
; D2D1SinCos angle, varptr(s), varptr(c)
; angle : FLOAT -> "float"
; s : FLOAT* out -> "sptr"
; c : FLOAT* 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:

; void D2D1SinCos(FLOAT angle, FLOAT* s, FLOAT* c)
#uselib "d2d1.dll"
#func global D2D1SinCos "D2D1SinCos" float, var, var
; D2D1SinCos angle, s, c
; angle : FLOAT -> "float"
; s : FLOAT* out -> "var"
; c : FLOAT* 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。; void D2D1SinCos(FLOAT angle, FLOAT* s, FLOAT* c)
#uselib "d2d1.dll"
#func global D2D1SinCos "D2D1SinCos" float, intptr, intptr
; D2D1SinCos angle, varptr(s), varptr(c)
; angle : FLOAT -> "float"
; s : FLOAT* out -> "intptr"
; c : FLOAT* 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 (
	d2d1 = windows.NewLazySystemDLL("d2d1.dll")
	procD2D1SinCos = d2d1.NewProc("D2D1SinCos")
)

// angle (FLOAT), s (FLOAT* out), c (FLOAT* out)
r1, _, err := procD2D1SinCos.Call(
	uintptr(math.Float32bits(angle)),
	uintptr(s),
	uintptr(c),
)
_ = 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 D2D1SinCos(
  angle: Single;   // FLOAT
  s: Pointer;   // FLOAT* out
  c: Pointer   // FLOAT* out
); stdcall;
  external 'd2d1.dll' name 'D2D1SinCos';

result := DllCall("d2d1\D2D1SinCos"
    , "Float", angle   ; FLOAT
    , "Ptr", s   ; FLOAT* out
    , "Ptr", c   ; FLOAT* out
    , "Int")   ; return: void

●D2D1SinCos(angle, s, c) = DLL("d2d1.dll", "int D2D1SinCos(float, void*, void*)")
# 呼び出し: D2D1SinCos(angle, s, c)
# angle : FLOAT -> "float"
# s : FLOAT* out -> "void*"
# c : FLOAT* 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)。