Hello, DirectX(MSIL) World!
Posted on 7月 31st, 2012 by cx20
Win32 DirectX(MSIL)
DirectX はマイクロソフトが Wnidows 用に開発したマルチメディア処理用 API である。
.NET Framework 用の DirectX ライブラリとしては、DirectX SDK より入手可能な Managed DirectX がある。
以下は MSIL における Managed DirectX アプリケーション の例となっている。
ソースコード
// Microsoft (R) .NET Framework IL Disassembler. Version 2.0.50727.42 // Copyright (c) Microsoft Corporation. All rights reserved. // Metadata version: v2.0.50727 .assembly extern System.Windows.Forms { .publickeytoken = (B7 7A 5C 56 19 34 E0 89 ) // .zV.4.. .ver 2:0:0:0 } .assembly extern Microsoft.DirectX.Direct3D { .publickeytoken = (31 BF 38 56 AD 36 4E 35 ) // 1.8V.6N5 .ver 1:0:2902:0 } .assembly extern Microsoft.DirectX.Direct3DX { .publickeytoken = (31 BF 38 56 AD 36 4E 35 ) // 1.8V.6N5 .ver 1:0:2911:0 } .assembly extern mscorlib { .publickeytoken = (B7 7A 5C 56 19 34 E0 89 ) // .zV.4.. .ver 2:0:0:0 } .assembly extern System.Drawing { .publickeytoken = (B0 3F 5F 7F 11 D5 0A 3A ) // .?_....: .ver 2:0:0:0 } .assembly extern System.Windows.Forms as System.Windows.Forms_5 { .publickeytoken = (B7 7A 5C 56 19 34 E0 89 ) // .zV.4.. .hash = (46 CF F1 2A B1 D2 B5 94 71 B8 95 F2 3D 65 06 C2 // F..*....q...=e.. 33 D3 CF 05 ) // 3... .ver 1:0:5000:0 } .assembly extern System.Drawing as System.Drawing_6 { .publickeytoken = (B0 3F 5F 7F 11 D5 0A 3A ) // .?_....: .hash = (01 F2 8E 4D 2E 2C 74 F0 83 0A 38 19 0C D6 04 59 // ...M.,t...8....Y 7A 24 81 23 ) // z$.# .ver 1:0:5000:0 } .assembly Hello { .custom instance void [mscorlib]System.Runtime.CompilerServices.CompilationRelaxationsAttribute::.ctor(int32) = ( 01 00 08 00 00 00 00 00 ) .custom instance void [mscorlib]System.Runtime.CompilerServices.RuntimeCompatibilityAttribute::.ctor() = ( 01 00 01 00 54 02 16 57 72 61 70 4E 6F 6E 45 78 // ....T..WrapNonEx 63 65 70 74 69 6F 6E 54 68 72 6F 77 73 01 ) // ceptionThrows. .hash algorithm 0x00008004 .ver 0:0:0:0 } .module Hello.exe // MVID: {5CADCB46-A918-449C-8A1F-169311ED3D80} .imagebase 0x00400000 .file alignment 0x00000200 .stackreserve 0x00100000 .subsystem 0x0002 // WINDOWS_GUI .corflags 0x00000003 // ILONLY 32BITREQUIRED // Image base: 0x02FA0000 // =============== CLASS MEMBERS DECLARATION =================== .class public auto ansi beforefieldinit HelloForm extends [System.Windows.Forms]System.Windows.Forms.Form { .field private class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device device_ .field private class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters presentParam_ .field private class [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.Font font_ .method public hidebysig specialname rtspecialname instance void .ctor() cil managed { // コード サイズ 44 (0x2c) .maxstack 8 IL_0000: ldarg.0 IL_0001: call instance void [System.Windows.Forms]System.Windows.Forms.Form::.ctor() IL_0006: nop IL_0007: nop IL_0008: ldarg.0 IL_0009: ldc.i4 0x280 IL_000e: ldc.i4 0x1e0 IL_0013: newobj instance void [System.Drawing]System.Drawing.Size::.ctor(int32, int32) IL_0018: call instance void [System.Windows.Forms]System.Windows.Forms.Form::set_Size(valuetype [System.Drawing]System.Drawing.Size) IL_001d: nop IL_001e: ldarg.0 IL_001f: ldstr "Hello, World!" IL_0024: callvirt instance void [System.Windows.Forms]System.Windows.Forms.Control::set_Text(string) IL_0029: nop IL_002a: nop IL_002b: ret } // end of method HelloForm::.ctor .method public hidebysig instance bool InitD3D() cil managed { // コード サイズ 84 (0x54) .maxstack 8 .locals init (bool V_0, class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters[] V_1) IL_0000: nop IL_0001: ldarg.0 IL_0002: newobj instance void [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters::.ctor() IL_0007: stfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters HelloForm::presentParam_ IL_000c: ldarg.0 IL_000d: ldfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters HelloForm::presentParam_ IL_0012: ldc.i4.1 IL_0013: callvirt instance void [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters::set_Windowed(bool) IL_0018: nop IL_0019: ldarg.0 IL_001a: ldfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters HelloForm::presentParam_ IL_001f: ldc.i4.1 IL_0020: callvirt instance void [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters::set_SwapEffect(valuetype [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.SwapEffect) IL_0025: nop IL_0026: ldarg.0 IL_0027: ldc.i4.0 IL_0028: ldc.i4.1 IL_0029: ldarg.0 IL_002a: ldc.i4.s 64 IL_002c: ldc.i4.1 IL_002d: newarr [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters IL_0032: stloc.1 IL_0033: ldloc.1 IL_0034: ldc.i4.0 IL_0035: ldarg.0 IL_0036: ldfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters HelloForm::presentParam_ IL_003b: stelem.ref IL_003c: ldloc.1 IL_003d: newobj instance void [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device::.ctor(int32, valuetype [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.DeviceType, class [System.Windows.Forms_5]System.Windows.Forms.Control, valuetype [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.CreateFlags, class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.PresentParameters[]) IL_0042: stfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device HelloForm::device_ IL_0047: ldarg.0 IL_0048: call instance void HelloForm::InitFont() IL_004d: nop IL_004e: ldc.i4.1 IL_004f: stloc.0 IL_0050: br.s IL_0052 IL_0052: ldloc.0 IL_0053: ret } // end of method HelloForm::InitD3D .method private hidebysig instance void InitFont() cil managed { // コード サイズ 51 (0x33) .maxstack 4 .locals init (valuetype [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.FontDescription V_0) IL_0000: nop IL_0001: ldloca.s V_0 IL_0003: call instance void [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.FontDescription::.ctor() IL_0008: nop IL_0009: ldloca.s V_0 IL_000b: ldc.i4.s 16 IL_000d: call instance void [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.FontDescription::set_Height(int32) IL_0012: nop IL_0013: ldloca.s V_0 IL_0015: ldstr bytearray (2D FF 33 FF 20 00 B4 30 B7 30 C3 30 AF 30 ) // -.3. ..0.0.0.0 IL_001a: call instance void [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.FontDescription::set_FaceName(string) IL_001f: nop IL_0020: ldarg.0 IL_0021: ldarg.0 IL_0022: ldfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device HelloForm::device_ IL_0027: ldloc.0 IL_0028: newobj instance void [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.Font::.ctor(class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device, valuetype [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.FontDescription) IL_002d: stfld class [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.Font HelloForm::font_ IL_0032: ret } // end of method HelloForm::InitFont .method public hidebysig instance void Render() cil managed { // コード サイズ 111 (0x6f) .maxstack 6 .locals init (bool V_0) IL_0000: nop IL_0001: ldarg.0 IL_0002: ldfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device HelloForm::device_ IL_0007: ldnull IL_0008: call bool [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device::op_Equality(class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device, class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device) IL_000d: ldc.i4.0 IL_000e: ceq IL_0010: stloc.0 IL_0011: ldloc.0 IL_0012: brtrue.s IL_0017 IL_0014: nop IL_0015: br.s IL_006e IL_0017: ldarg.0 IL_0018: ldfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device HelloForm::device_ IL_001d: ldc.i4.1 IL_001e: call valuetype [System.Drawing]System.Drawing.Color [System.Drawing]System.Drawing.Color::get_Blue() IL_0023: ldc.r4 1. IL_0028: ldc.i4.0 IL_0029: callvirt instance void [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device::Clear(valuetype [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.ClearFlags, valuetype [System.Drawing_6]System.Drawing.Color, float32, int32) IL_002e: nop IL_002f: ldarg.0 IL_0030: ldfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device HelloForm::device_ IL_0035: callvirt instance void [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device::BeginScene() IL_003a: nop IL_003b: ldarg.0 IL_003c: ldfld class [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.Font HelloForm::font_ IL_0041: ldnull IL_0042: ldstr "Hello, DirectX(MSIL) World!" IL_0047: ldc.i4.s 10 IL_0049: ldc.i4.s 10 IL_004b: call valuetype [System.Drawing]System.Drawing.Color [System.Drawing]System.Drawing.Color::get_White() IL_0050: callvirt instance int32 [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.Font::DrawText(class [Microsoft.DirectX.Direct3DX]Microsoft.DirectX.Direct3D.Sprite, string, int32, int32, valuetype [System.Drawing_6]System.Drawing.Color) IL_0055: pop IL_0056: ldarg.0 IL_0057: ldfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device HelloForm::device_ IL_005c: callvirt instance void [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device::EndScene() IL_0061: nop IL_0062: ldarg.0 IL_0063: ldfld class [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device HelloForm::device_ IL_0068: callvirt instance void [Microsoft.DirectX.Direct3D]Microsoft.DirectX.Direct3D.Device::Present() IL_006d: nop IL_006e: ret } // end of method HelloForm::Render .method public hidebysig static void Main() cil managed { .entrypoint .custom instance void [mscorlib]System.STAThreadAttribute::.ctor() = ( 01 00 00 00 ) // コード サイズ 70 (0x46) .maxstack 2 .locals init (class HelloForm V_0, bool V_1) IL_0000: nop IL_0001: newobj instance void HelloForm::.ctor() IL_0006: stloc.0 .try { IL_0007: nop IL_0008: ldloc.0 IL_0009: callvirt instance bool HelloForm::InitD3D() IL_000e: pop IL_000f: ldloc.0 IL_0010: callvirt instance void [System.Windows.Forms]System.Windows.Forms.Control::Show() IL_0015: nop IL_0016: br.s IL_0027 IL_0018: nop IL_0019: ldloc.0 IL_001a: callvirt instance void HelloForm::Render() IL_001f: nop IL_0020: call void [System.Windows.Forms]System.Windows.Forms.Application::DoEvents() IL_0025: nop IL_0026: nop IL_0027: ldloc.0 IL_0028: callvirt instance bool [System.Windows.Forms]System.Windows.Forms.Control::get_Created() IL_002d: stloc.1 IL_002e: ldloc.1 IL_002f: brtrue.s IL_0018 IL_0031: nop IL_0032: leave.s IL_0044 } // end .try finally { IL_0034: ldloc.0 IL_0035: ldnull IL_0036: ceq IL_0038: stloc.1 IL_0039: ldloc.1 IL_003a: brtrue.s IL_0043 IL_003c: ldloc.0 IL_003d: callvirt instance void [mscorlib]System.IDisposable::Dispose() IL_0042: nop IL_0043: endfinally } // end handler IL_0044: nop IL_0045: ret } // end of method HelloForm::Main } // end of class HelloForm // ============================================================= // *********** 逆アセンブルが完了しました *********************** // 警告: Win32 リソース ファイル Hello.res を作成しました。 |
上記コードは、以下の C# の実行ファイルを ildasm.exe で逆アセンブルしたものである。
ソースコード
using System; using System.Drawing; using System.Windows.Forms; using Microsoft.DirectX; using Microsoft.DirectX.Direct3D; public class HelloForm : Form { private Device device_; private PresentParameters presentParam_; private Microsoft.DirectX.Direct3D.Font font_; public HelloForm() { this.Size = new Size(640, 480); this.Text = "Hello, World!"; } public bool InitD3D() { presentParam_ = new PresentParameters(); presentParam_.Windowed = true; presentParam_.SwapEffect = SwapEffect.Discard; device_ = new Device(0, DeviceType.Hardware, this, CreateFlags.HardwareVertexProcessing, presentParam_); InitFont(); return true; } private void InitFont() { FontDescription fd = new FontDescription(); fd.Height = 16; fd.FaceName = "MS ゴシック"; font_ = new Microsoft.DirectX.Direct3D.Font(device_, fd); } public void Render() { if (device_ == null) { return; } device_.Clear(ClearFlags.Target, Color.Blue, 1.0f, 0); device_.BeginScene(); font_.DrawText(null, "Hello, DirectX(MSIL) World!", 10, 10, Color.White); device_.EndScene(); device_.Present(); } [STAThread] public static void Main() { using (HelloForm form = new HelloForm()) { form.InitD3D(); form.Show(); while (form.Created) { form.Render(); Application.DoEvents(); } } } } |
コンパイル方法
C:¥> ilasm Hello.il |
実行結果
+------------------------------------------+ |Hello, World! [_][~][X]| +------------------------------------------+ |Hello, DirectX(MSIL) World! | | | | | | | | | | | | | | | | | | | +------------------------------------------+ |
Tags: DirectX