FDK24/メディア/デバイスリソース.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Diagnostics;
   4 using System.Linq;
   5
   6 namespace FDK.メディア
   7 {
   8         public class デバイスリソース
   9         {
  10                 public SharpDX.Size2F 設計画面サイズdpx = new SharpDX.Size2F( 640f, 480f );
  11                 public SharpDX.Size2F 物理画面サイズpx = new SharpDX.Size2F( 0, 0 );     // (0, 0) は、サイズ依存リソース無効の印。
  12                 public IntPtr ウィンドウハンドル = IntPtr.Zero;
  13                 public float 視野角deg { get; set; } = 45f;
  14                 public SharpDX.Matrix ビュー変換行列
  15                 {
  16                         get
  17                         {
  18                                 var カメラの位置 = new SharpDX.Vector3( 0f, 0f, ( -2f * this.dz( this.設計画面サイズdpx.Height, this.視野角deg ) ) );
  19                                 var カメラの注視点 = new SharpDX.Vector3( 0f, 0f, 0f );
  20                                 var カメラの上方向 = new SharpDX.Vector3( 0f, 1f, 0f );
  21                                 var mat = SharpDX.Matrix.LookAtLH( カメラの位置, カメラの注視点, カメラの上方向 );
  22                                 mat.Transpose();  // 転置
  23                                 return mat;
  24                         }
  25                 }
  26                 public SharpDX.Matrix 射影変換行列
  27                 {
  28                         get
  29                         {
  30                                 float dz = this.dz( this.設計画面サイズdpx.Height, this.視野角deg );
  31                                 var mat = SharpDX.Matrix.PerspectiveFovLH(
  32                                         SharpDX.MathUtil.DegreesToRadians( 視野角deg ),
  33                                         設計画面サイズdpx.Width / 設計画面サイズdpx.Height,  // アスペクト比
  34                                         -dz,  // 前方投影面までの距離
  35                                         dz ); // 後方投影面までの距離
  36                                 mat.Transpose();  // 転置
  37                                 return mat;
  38                         }
  39                 }
  40                 public SharpDX.Direct3D11.Device D3DDevice => this.bs_D3DDevice;
  41                 public SharpDX.DXGI.SwapChain SwapChain => this.bs_SwapChain;
  42                 public SharpDX.Direct3D11.RenderTargetView RenderTargetView => this.bs_RenderTargetView;
  43                 public SharpDX.Mathematics.Interop.RawViewportF[] ViewPort => this.bs_ViewPort;
  44                 public SharpDX.Direct3D11.Texture2D DepthStencil => this.bs_DepthStencil;
  45                 public SharpDX.Direct3D11.DepthStencilView DepthStencilView => this.bs_DepthStencilView;
  46                 public SharpDX.Direct3D11.DepthStencilState DepthStencilState => this.bs_DepthStencilState;
  47
  48                 public void すべてのリソースを作成する( System.Drawing.Size バックバッファサイズ, IntPtr ウィンドウハンドル )
  49                 {
  50                         this.物理画面サイズpx = new SharpDX.Size2F( バックバッファサイズ.Width, バックバッファサイズ.Height );
  51                         this.ウィンドウハンドル = ウィンドウハンドル;
  52
  53                         this.すべてのリソースを作成する();
  54                 }
  55                 protected void すべてのリソースを作成する()
  56                 {
  57                         // これらが呼び出し前に設定されていること。
  58                         Debug.Assert( ( 0f < this.物理画面サイズpx.Width ) && ( 0f < this.物理画面サイズpx.Height ) );
  59                         Debug.Assert( IntPtr.Zero != this.ウィンドウハンドル );
  60
  61                         #region " デバイス、スワップチェーンを作成する。"
  62                         //----------------
  63                         // スワップチェーン desc
  64                         var swapChainDesc = new SharpDX.DXGI.SwapChainDescription() {
  65                                 BufferCount = 3,
  66                                 ModeDescription = new SharpDX.DXGI.ModeDescription(
  67                                         (int) this.物理画面サイズpx.Width,
  68                                         (int) this.物理画面サイズpx.Height,
  69                                         new SharpDX.DXGI.Rational( 60, 1 ),
  70                                         SharpDX.DXGI.Format.B8G8R8A8_UNorm
  71                                 ),
  72                                 IsWindowed = true,
  73                                 OutputHandle = ウィンドウハンドル,
  74                                 SampleDescription = new SharpDX.DXGI.SampleDescription( 1, 0 ),
  75                                 SwapEffect = SharpDX.DXGI.SwapEffect.Discard,
  76                                 Usage = SharpDX.DXGI.Usage.RenderTargetOutput,
  77                         };
  78                         // 機能レベル
  79                         var featureLevels = new SharpDX.Direct3D.FeatureLevel[] {
  80                                 SharpDX.Direct3D.FeatureLevel.Level_11_0,
  81                                 SharpDX.Direct3D.FeatureLevel.Level_10_1,
  82                                 SharpDX.Direct3D.FeatureLevel.Level_10_0,
  83                         };
  84                         // デバイスとスワップチェーンを作成する。
  85                         SharpDX.Direct3D11.Device.CreateWithSwapChain(
  86                                 SharpDX.Direct3D.DriverType.Hardware,
  87                                 SharpDX.Direct3D11.DeviceCreationFlags.None,
  88                                 featureLevels,
  89                                 swapChainDesc,
  90                                 out this.bs_D3DDevice,
  91                                 out this.bs_SwapChain );
  92
  93                         Trace.WriteLine( "D3Dデバイスとスワップチェーンを生成しました。" );
  94                         Trace.WriteLine( $"機能レベル: {this.bs_D3DDevice.FeatureLevel.ToString()}" );
  95                         //----------------
  96                         #endregion
  97                         #region " すべての Windows イベントを無視する。具体的には PrintScreen と Alt+Enter 。"
  98                         //----------------
  99                         using( var factory = this.bs_SwapChain.GetParent<SharpDX.DXGI.Factory>() )
 100                         {
 101                                 factory.MakeWindowAssociation( ウィンドウハンドル, SharpDX.DXGI.WindowAssociationFlags.IgnoreAll );
 102                         }
 103                         //----------------
 104                         #endregion
 105                         #region " 深度ステンシルステート "
 106                         //----------------
 107                         var DepthSencil = new SharpDX.Direct3D11.DepthStencilStateDescription() {
 108                                 IsDepthEnabled = true,  // 深度テストあり
 109                                 DepthWriteMask = SharpDX.Direct3D11.DepthWriteMask.All,     // 書き込む
 110                                 DepthComparison = SharpDX.Direct3D11.Comparison.Less,   // 手前の物体を描画
 111                                 IsStencilEnabled = false,   // ステンシルテストなし。
 112                                 StencilReadMask = 0,    // ステンシル読み込みマスク。
 113                                 StencilWriteMask = 0,   // ステンシル書き込みマスク。
 114
 115                                 // 面が表を向いている場合のステンシル・テストの設定
 116                                 FrontFace = new SharpDX.Direct3D11.DepthStencilOperationDescription() {
 117                                         FailOperation = SharpDX.Direct3D11.StencilOperation.Keep,   // 維持
 118                                         DepthFailOperation = SharpDX.Direct3D11.StencilOperation.Keep,  // 維持
 119                                         PassOperation = SharpDX.Direct3D11.StencilOperation.Keep,   // 維持
 120                                         Comparison = SharpDX.Direct3D11.Comparison.Never,   // 常に失敗
 121                                 },
 122
 123                                 // 面が裏を向いている場合のステンシル・テストの設定
 124                                 BackFace = new SharpDX.Direct3D11.DepthStencilOperationDescription() {
 125                                         FailOperation = SharpDX.Direct3D11.StencilOperation.Keep,   // 維持
 126                                         DepthFailOperation = SharpDX.Direct3D11.StencilOperation.Keep,  // 維持
 127                                         PassOperation = SharpDX.Direct3D11.StencilOperation.Keep,   // 維持
 128                                         Comparison = SharpDX.Direct3D11.Comparison.Always,  // 常に成功
 129                                 },
 130                         };
 131                         this.bs_DepthStencilState = new SharpDX.Direct3D11.DepthStencilState( this.bs_D3DDevice, DepthSencil );
 132                         //----------------
 133                         #endregion
 134
 135                         this.サイズに依存するリソースを作成する();
 136                 }
 137                 public void すべてのリソースを解放する()
 138                 {
 139                         // デバイスステートをクリアする。
 140                         this.bs_D3DDevice?.ImmediateContext?.ClearState();
 141
 142                         // スワップチェインをウインドウモードにする。
 143                         this.bs_SwapChain?.SetFullscreenState( fullscreen: false, targetRef: null );
 144
 145                         this.サイズに依存するリソースを解放する();
 146
 147                         // 取得したインターフェイスの開放
 148                         this.bs_DepthStencilState?.Dispose();
 149                         this.bs_SwapChain?.Dispose();
 150                         this.bs_D3DDevice?.Dispose();
 151                 }
 152                 public void サイズに依存するリソースを作成する()
 153                 {
 154                         #region " スワップチェーンのサイズを変更する。"
 155                         //----------------
 156                         Debug.Assert( null != this.SwapChain ); // スワップチェーンは、デバイスとともに、すでに生成される。
 157                         this.SwapChain.ResizeBuffers(
 158                                 bufferCount: 2,
 159                                 width: (int) this.物理画面サイズpx.Width,
 160                                 height: (int) this.物理画面サイズpx.Height,
 161                                 newFormat: SharpDX.DXGI.Format.R8G8B8A8_UNorm,
 162                                 swapChainFlags: SharpDX.DXGI.SwapChainFlags.AllowModeSwitch );
 163                         //----------------
 164                         #endregion
 165
 166                         // 新しいサイズになったバックバッファを取得して、リソースを作成する。
 167                         using( var backBuffer = SharpDX.Direct3D11.Texture2D.FromSwapChain<SharpDX.Direct3D11.Texture2D>( this.bs_SwapChain, 0 ) )
 168                         {
 169                                 #region " RenderTargetView の作成 "
 170                                 //----------------
 171                                 this.bs_RenderTargetView = new SharpDX.Direct3D11.RenderTargetView( this.bs_D3DDevice, backBuffer );
 172                                 //----------------
 173                                 #endregion
 174                                 #region " 深度ステンシルテクスチャの作成 "
 175                                 //----------------
 176                                 var descDepth = backBuffer.Description;
 177                                 //descDepth.Width = backBuffer.Description.Width;       → backBuffer に同じ
 178                                 //descDepth.Height = backBuffer.Description.Height;     → 同上
 179                                 descDepth.MipLevels = 1;    // ミップマップレベル数
 180                                 descDepth.ArraySize = 1;    // 配列サイズ
 181                                 descDepth.Format = SharpDX.DXGI.Format.D32_Float;   // フォーマット（深度のみ）
 182                                 descDepth.Usage = SharpDX.Direct3D11.ResourceUsage.Default; // デフォルト使用法
 183                                 descDepth.BindFlags = SharpDX.Direct3D11.BindFlags.DepthStencil;    // 深度ステンシル
 184                                 descDepth.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None;  // CPUからはアクセスしない
 185                                 descDepth.OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None;    // その他の設定なし
 186
 187                                 this.bs_DepthStencil = new SharpDX.Direct3D11.Texture2D( this.bs_D3DDevice, descDepth );
 188                                 //----------------
 189                                 #endregion
 190                                 #region " 深度ステンシルビューの作成 "
 191                                 //----------------
 192                                 var descDSV = new SharpDX.Direct3D11.DepthStencilViewDescription() {
 193                                         Format = descDepth.Format,
 194                                         Dimension = SharpDX.Direct3D11.DepthStencilViewDimension.Texture2D,
 195                                         Flags = SharpDX.Direct3D11.DepthStencilViewFlags.None,
 196                                 };
 197                                 descDSV.Texture2D.MipSlice = 0;
 198                                 this.bs_DepthStencilView = new SharpDX.Direct3D11.DepthStencilView(
 199                                         this.bs_D3DDevice,
 200                                         this.bs_DepthStencil,
 201                                         descDSV );
 202                                 //----------------
 203                                 #endregion
 204                                 #region " ビューポートの設定 "
 205                                 //----------------
 206                                 this.bs_ViewPort[ 0 ] = new SharpDX.Mathematics.Interop.RawViewportF() {
 207                                         X = 0.0f,
 208                                         Y = 0.0f,
 209                                         Width = (float) backBuffer.Description.Width,
 210                                         Height = (float) backBuffer.Description.Height,
 211                                         MinDepth = 0.0f,
 212                                         MaxDepth = 1.0f,
 213                                 };
 214                                 //----------------
 215                                 #endregion
 216                                 #region " テクスチャの共有リソースの作成 "
 217                                 //----------------
 218                                 FDK.メディア.テクスチャ.共有リソースを作成する( this );
 219                                 //----------------
 220                                 #endregion
 221                         }
 222                 }
 223                 public void サイズに依存するリソースを解放する()
 224                 {
 225                         // 描画ターゲットを解除する。
 226                         this.D3DDevice.ImmediateContext.OutputMerger.ResetTargets();
 227
 228                         FDK.メディア.テクスチャ.共有リソースを解放する();
 229                         this.bs_DepthStencilView?.Dispose();
 230                         this.bs_DepthStencil?.Dispose();
 231                         this.bs_RenderTargetView?.Dispose();
 232                         //this.bs_SwapChain?.Dispose(); → スワップチェーンは解放しない（生成・解放はデバイスとセット）。
 233
 234                         // (0,0)は、サイズ依存リソース無効の印。
 235                         this.物理画面サイズpx = new SharpDX.Size2F( 0, 0 );
 236                 }
 237                 public void D3Dデバイスが消失していれば再構築する( out bool 異常状態なのでアプリを終了せよ )
 238                 {
 239                         異常状態なのでアプリを終了せよ = false;
 240
 241                         var 削除理由 = this.bs_D3DDevice.DeviceRemovedReason;
 242                         if( 削除理由.Success )
 243                                 return;
 244
 245                         var エラー詳細 = new[] {
 246                                         new { Code = SharpDX.DXGI.ResultCode.DeviceHung.Code, Info = SharpDX.DXGI.ResultCode.DeviceHung.ApiCode, Rebuild = true },
 247                                         new { Code = SharpDX.DXGI.ResultCode.DeviceReset.Code, Info = SharpDX.DXGI.ResultCode.DeviceReset.ApiCode, Rebuild = true },
 248                                         new { Code = SharpDX.DXGI.ResultCode.DeviceRemoved.Code, Info = SharpDX.DXGI.ResultCode.DeviceRemoved.ApiCode, Rebuild = false },
 249                                         new { Code = SharpDX.DXGI.ResultCode.DriverInternalError.Code, Info = SharpDX.DXGI.ResultCode.DriverInternalError.ApiCode, Rebuild = false },
 250                                         new { Code = SharpDX.DXGI.ResultCode.InvalidCall.Code, Info = SharpDX.DXGI.ResultCode.InvalidCall.ApiCode, Rebuild = false },
 251                                 }.First( ( エラー ) => エラー.Code == 削除理由.Code );  // 見つからないなら System.InvalidOperationException 。
 252
 253                         Trace.WriteLine( $"D3Dデバイスが消失しました: {エラー詳細.Info}" );
 254
 255                         if( エラー詳細.Rebuild )
 256                         {
 257                                 this.すべてのリソースを解放する();
 258                                 this.すべてのリソースを作成する();
 259                         }
 260                         else
 261                         {
 262                                 異常状態なのでアプリを終了せよ = true;
 263                         }
 264                 }
 265
 266                 private float dz( float 高さdpx, float 視野角deg )
 267                 {
 268                         return (float) ( 高さdpx / ( 4.0 * Math.Tan( SharpDX.MathUtil.DegreesToRadians( 視野角deg / 2.0f ) ) ) );
 269                 }
 270
 271                 #region " バックストア。"
 272                 //----------------
 273                 private SharpDX.Direct3D11.Device bs_D3DDevice = null;
 274                 private SharpDX.DXGI.SwapChain bs_SwapChain = null;
 275                 private SharpDX.Mathematics.Interop.RawViewportF[] bs_ViewPort = new SharpDX.Mathematics.Interop.RawViewportF[ 1 ];
 276                 private SharpDX.Direct3D11.DepthStencilState bs_DepthStencilState = null;
 277                 private SharpDX.Direct3D11.RenderTargetView bs_RenderTargetView = null;
 278                 private SharpDX.Direct3D11.Texture2D bs_DepthStencil = null;
 279                 private SharpDX.Direct3D11.DepthStencilView bs_DepthStencilView = null;
 280                 //----------------
 281                 #endregion
 282         }
 283 }