MFCreate2DMediaBuffer

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

HRESULT MFCreate2DMediaBuffer(
    DWORD dwWidth,
    DWORD dwHeight,
    DWORD dwFourCC,
    BOOL fBottomUp,
    IMFMediaBuffer** ppBuffer
);

<DllImport("MFPlat.dll", ExactSpelling:=True)>
Public Shared Function MFCreate2DMediaBuffer(
    dwWidth As UInteger,   ' DWORD
    dwHeight As UInteger,   ' DWORD
    dwFourCC As UInteger,   ' DWORD
    fBottomUp As Boolean,   ' BOOL
    ppBuffer As IntPtr   ' IMFMediaBuffer** out
) As Integer
End Function

' dwWidth : DWORD
' dwHeight : DWORD
' dwFourCC : DWORD
' fBottomUp : BOOL
' ppBuffer : IMFMediaBuffer** out
Declare PtrSafe Function MFCreate2DMediaBuffer Lib "mfplat" ( _
    ByVal dwWidth As Long, _
    ByVal dwHeight As Long, _
    ByVal dwFourCC As Long, _
    ByVal fBottomUp As Long, _
    ByVal ppBuffer 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

MFCreate2DMediaBuffer = ctypes.windll.mfplat.MFCreate2DMediaBuffer
MFCreate2DMediaBuffer.restype = ctypes.c_int
MFCreate2DMediaBuffer.argtypes = [
    wintypes.DWORD,  # dwWidth : DWORD
    wintypes.DWORD,  # dwHeight : DWORD
    wintypes.DWORD,  # dwFourCC : DWORD
    wintypes.BOOL,  # fBottomUp : BOOL
    ctypes.c_void_p,  # ppBuffer : IMFMediaBuffer** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('MFPlat.dll')
MFCreate2DMediaBuffer = Fiddle::Function.new(
  lib['MFCreate2DMediaBuffer'],
  [
    -Fiddle::TYPE_INT,  # dwWidth : DWORD
    -Fiddle::TYPE_INT,  # dwHeight : DWORD
    -Fiddle::TYPE_INT,  # dwFourCC : DWORD
    Fiddle::TYPE_INT,  # fBottomUp : BOOL
    Fiddle::TYPE_VOIDP,  # ppBuffer : IMFMediaBuffer** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "mfplat")]
extern "system" {
    fn MFCreate2DMediaBuffer(
        dwWidth: u32,  // DWORD
        dwHeight: u32,  // DWORD
        dwFourCC: u32,  // DWORD
        fBottomUp: i32,  // BOOL
        ppBuffer: *mut *mut core::ffi::c_void  // IMFMediaBuffer** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("MFPlat.dll")]
public static extern int MFCreate2DMediaBuffer(uint dwWidth, uint dwHeight, uint dwFourCC, bool fBottomUp, IntPtr ppBuffer);
"@
$api = Add-Type -MemberDefinition $sig -Name 'MFPlat_MFCreate2DMediaBuffer' -Namespace Win32 -PassThru
# $api::MFCreate2DMediaBuffer(dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer)

#uselib "MFPlat.dll"
#func global MFCreate2DMediaBuffer "MFCreate2DMediaBuffer" sptr, sptr, sptr, sptr, sptr
; MFCreate2DMediaBuffer dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer   ; 戻り値は stat
; dwWidth : DWORD -> "sptr"
; dwHeight : DWORD -> "sptr"
; dwFourCC : DWORD -> "sptr"
; fBottomUp : BOOL -> "sptr"
; ppBuffer : IMFMediaBuffer** 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 "MFPlat.dll"
#cfunc global MFCreate2DMediaBuffer "MFCreate2DMediaBuffer" int, int, int, int, sptr
; res = MFCreate2DMediaBuffer(dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer)
; dwWidth : DWORD -> "int"
; dwHeight : DWORD -> "int"
; dwFourCC : DWORD -> "int"
; fBottomUp : BOOL -> "int"
; ppBuffer : IMFMediaBuffer** out -> "sptr"

; HRESULT MFCreate2DMediaBuffer(DWORD dwWidth, DWORD dwHeight, DWORD dwFourCC, BOOL fBottomUp, IMFMediaBuffer** ppBuffer)
#uselib "MFPlat.dll"
#cfunc global MFCreate2DMediaBuffer "MFCreate2DMediaBuffer" int, int, int, int, intptr
; res = MFCreate2DMediaBuffer(dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer)
; dwWidth : DWORD -> "int"
; dwHeight : DWORD -> "int"
; dwFourCC : DWORD -> "int"
; fBottomUp : BOOL -> "int"
; ppBuffer : IMFMediaBuffer** out -> "intptr"

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

var (
	mfplat = windows.NewLazySystemDLL("MFPlat.dll")
	procMFCreate2DMediaBuffer = mfplat.NewProc("MFCreate2DMediaBuffer")
)

// dwWidth (DWORD), dwHeight (DWORD), dwFourCC (DWORD), fBottomUp (BOOL), ppBuffer (IMFMediaBuffer** out)
r1, _, err := procMFCreate2DMediaBuffer.Call(
	uintptr(dwWidth),
	uintptr(dwHeight),
	uintptr(dwFourCC),
	uintptr(fBottomUp),
	uintptr(ppBuffer),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function MFCreate2DMediaBuffer(
  dwWidth: DWORD;   // DWORD
  dwHeight: DWORD;   // DWORD
  dwFourCC: DWORD;   // DWORD
  fBottomUp: BOOL;   // BOOL
  ppBuffer: Pointer   // IMFMediaBuffer** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreate2DMediaBuffer';

result := DllCall("MFPlat\MFCreate2DMediaBuffer"
    , "UInt", dwWidth   ; DWORD
    , "UInt", dwHeight   ; DWORD
    , "UInt", dwFourCC   ; DWORD
    , "Int", fBottomUp   ; BOOL
    , "Ptr", ppBuffer   ; IMFMediaBuffer** out
    , "Int")   ; return: HRESULT

●MFCreate2DMediaBuffer(dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer) = DLL("MFPlat.dll", "int MFCreate2DMediaBuffer(dword, dword, dword, bool, void*)")
# 呼び出し: MFCreate2DMediaBuffer(dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer)
# dwWidth : DWORD -> "dword"
# dwHeight : DWORD -> "dword"
# dwFourCC : DWORD -> "dword"
# fBottomUp : BOOL -> "bool"
# ppBuffer : IMFMediaBuffer** 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 "mfplat" fn MFCreate2DMediaBuffer(
    dwWidth: u32, // DWORD
    dwHeight: u32, // DWORD
    dwFourCC: u32, // DWORD
    fBottomUp: i32, // BOOL
    ppBuffer: ?*anyopaque // IMFMediaBuffer** out
) callconv(std.os.windows.WINAPI) i32;

proc MFCreate2DMediaBuffer(
    dwWidth: uint32,  # DWORD
    dwHeight: uint32,  # DWORD
    dwFourCC: uint32,  # DWORD
    fBottomUp: int32,  # BOOL
    ppBuffer: pointer  # IMFMediaBuffer** out
): int32 {.importc: "MFCreate2DMediaBuffer", stdcall, dynlib: "MFPlat.dll".}

pragma(lib, "mfplat");
extern(Windows)
int MFCreate2DMediaBuffer(
    uint dwWidth,   // DWORD
    uint dwHeight,   // DWORD
    uint dwFourCC,   // DWORD
    int fBottomUp,   // BOOL
    void* ppBuffer   // IMFMediaBuffer** out
);

ccall((:MFCreate2DMediaBuffer, "MFPlat.dll"), stdcall, Int32,
      (UInt32, UInt32, UInt32, Int32, Ptr{Cvoid}),
      dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer)
# dwWidth : DWORD -> UInt32
# dwHeight : DWORD -> UInt32
# dwFourCC : DWORD -> UInt32
# fBottomUp : BOOL -> Int32
# ppBuffer : IMFMediaBuffer** 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 MFCreate2DMediaBuffer(
    uint32_t dwWidth,
    uint32_t dwHeight,
    uint32_t dwFourCC,
    int32_t fBottomUp,
    void* ppBuffer);
]]
local mfplat = ffi.load("mfplat")
-- mfplat.MFCreate2DMediaBuffer(dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer)
-- dwWidth : DWORD
-- dwHeight : DWORD
-- dwFourCC : DWORD
-- fBottomUp : BOOL
-- ppBuffer : IMFMediaBuffer** 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('MFPlat.dll');
const MFCreate2DMediaBuffer = lib.func('__stdcall', 'MFCreate2DMediaBuffer', 'int32_t', ['uint32_t', 'uint32_t', 'uint32_t', 'int32_t', 'void *']);
// MFCreate2DMediaBuffer(dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer)
// dwWidth : DWORD -> 'uint32_t'
// dwHeight : DWORD -> 'uint32_t'
// dwFourCC : DWORD -> 'uint32_t'
// fBottomUp : BOOL -> 'int32_t'
// ppBuffer : IMFMediaBuffer** 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("MFPlat.dll", {
  MFCreate2DMediaBuffer: { parameters: ["u32", "u32", "u32", "i32", "pointer"], result: "i32" },
});
// lib.symbols.MFCreate2DMediaBuffer(dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer)
// dwWidth : DWORD -> "u32"
// dwHeight : DWORD -> "u32"
// dwFourCC : DWORD -> "u32"
// fBottomUp : BOOL -> "i32"
// ppBuffer : IMFMediaBuffer** 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 MFCreate2DMediaBuffer(
    uint32_t dwWidth,
    uint32_t dwHeight,
    uint32_t dwFourCC,
    int32_t fBottomUp,
    void* ppBuffer);
C, "MFPlat.dll");
// $ffi->MFCreate2DMediaBuffer(dwWidth, dwHeight, dwFourCC, fBottomUp, ppBuffer);
// dwWidth : DWORD
// dwHeight : DWORD
// dwFourCC : DWORD
// fBottomUp : BOOL
// ppBuffer : IMFMediaBuffer** 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 Mfplat extends StdCallLibrary {
    Mfplat INSTANCE = Native.load("mfplat", Mfplat.class);
    int MFCreate2DMediaBuffer(
        int dwWidth,   // DWORD
        int dwHeight,   // DWORD
        int dwFourCC,   // DWORD
        boolean fBottomUp,   // BOOL
        Pointer ppBuffer   // IMFMediaBuffer** out
    );
}

@[Link("mfplat")]
lib LibMFPlat
  fun MFCreate2DMediaBuffer = MFCreate2DMediaBuffer(
    dwWidth : UInt32,   # DWORD
    dwHeight : UInt32,   # DWORD
    dwFourCC : UInt32,   # DWORD
    fBottomUp : Int32,   # BOOL
    ppBuffer : Void*   # IMFMediaBuffer** 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 MFCreate2DMediaBufferNative = Int32 Function(Uint32, Uint32, Uint32, Int32, Pointer<Void>);
typedef MFCreate2DMediaBufferDart = int Function(int, int, int, int, Pointer<Void>);
final MFCreate2DMediaBuffer = DynamicLibrary.open('MFPlat.dll')
    .lookupFunction<MFCreate2DMediaBufferNative, MFCreate2DMediaBufferDart>('MFCreate2DMediaBuffer');
// dwWidth : DWORD -> Uint32
// dwHeight : DWORD -> Uint32
// dwFourCC : DWORD -> Uint32
// fBottomUp : BOOL -> Int32
// ppBuffer : IMFMediaBuffer** out -> Pointer<Void>
// 文字列は package:ffi の "...".toNativeUtf16()/toNativeUtf8() で変換。

{$mode objfpc}{$H+}
function MFCreate2DMediaBuffer(
  dwWidth: DWORD;   // DWORD
  dwHeight: DWORD;   // DWORD
  dwFourCC: DWORD;   // DWORD
  fBottomUp: BOOL;   // BOOL
  ppBuffer: Pointer   // IMFMediaBuffer** out
): Integer; stdcall;
  external 'MFPlat.dll' name 'MFCreate2DMediaBuffer';

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

foreign import stdcall safe "MFCreate2DMediaBuffer"
  c_MFCreate2DMediaBuffer :: Word32 -> Word32 -> Word32 -> CInt -> Ptr () -> IO Int32
-- dwWidth : DWORD -> Word32
-- dwHeight : DWORD -> Word32
-- dwFourCC : DWORD -> Word32
-- fBottomUp : BOOL -> CInt
-- ppBuffer : IMFMediaBuffer** 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 mfcreate2dmediabuffer =
  foreign "MFCreate2DMediaBuffer"
    (uint32_t @-> uint32_t @-> uint32_t @-> int32_t @-> (ptr void) @-> returning int32_t)
(* dwWidth : DWORD -> uint32_t *)
(* dwHeight : DWORD -> uint32_t *)
(* dwFourCC : DWORD -> uint32_t *)
(* fBottomUp : BOOL -> int32_t *)
(* ppBuffer : IMFMediaBuffer** 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 mfplat (t "MFPlat.dll"))
(cffi:use-foreign-library mfplat)

(cffi:defcfun ("MFCreate2DMediaBuffer" mfcreate2-dmedia-buffer :convention :stdcall) :int32
  (dw-width :uint32)   ; DWORD
  (dw-height :uint32)   ; DWORD
  (dw-four-cc :uint32)   ; DWORD
  (f-bottom-up :int32)   ; BOOL
  (pp-buffer :pointer))   ; IMFMediaBuffer** out
; isize/usize(INT_PTR/SIZE_T)は x64 前提で :int64/:uint64。x86 では :int32/:uint32。

use Win32::API;
my $MFCreate2DMediaBuffer = Win32::API::More->new('MFPlat',
    'int MFCreate2DMediaBuffer(DWORD dwWidth, DWORD dwHeight, DWORD dwFourCC, BOOL fBottomUp, LPVOID ppBuffer)');
# my $ret = $MFCreate2DMediaBuffer->Call($dwWidth, $dwHeight, $dwFourCC, $fBottomUp, $ppBuffer);
# dwWidth : DWORD -> DWORD
# dwHeight : DWORD -> DWORD
# dwFourCC : DWORD -> DWORD
# fBottomUp : BOOL -> BOOL
# ppBuffer : IMFMediaBuffer** out -> LPVOID
# 値渡し構造体は pack() した文字列、または Win32::API::Struct を使用。