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                 public SharpDX.Direct3D11.ShaderResourceView ShaderResourceView => this.bs_ShaderResourceView;
  48                 public SharpDX.Direct3D11.SamplerState SamplerState => this.bs_SamplerState;
  49                 protected SharpDX.Size2F ShaderResourceViewSize;
  50
  51                 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 )
  52                 {
  53                         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 );
  54                         this.ウィンドウハンドル = ウィンドウハンドル;
  55
  56                         this.すべてのリソースを作成する();
  57                 }
  58                 protected void すべてのリソースを作成する()
  59                 {
  60                         // これらが呼び出し前に設定されていること。
  61                         Debug.Assert( ( 0f < this.物理画面サイズpx.Width ) && ( 0f < this.物理画面サイズpx.Height ) );
  62                         Debug.Assert( IntPtr.Zero != this.ウィンドウハンドル );
  63
  64                         #region " デバイス、スワップチェーンを作成する。"
  65                         //----------------
  66                         // スワップチェーン desc
  67                         var swapChainDesc = new SharpDX.DXGI.SwapChainDescription() {
  68                                 BufferCount = 3,
  69                                 ModeDescription = new SharpDX.DXGI.ModeDescription(
  70                                         (int) this.物理画面サイズpx.Width,
  71                                         (int) this.物理画面サイズpx.Height,
  72                                         new SharpDX.DXGI.Rational( 60, 1 ),
  73                                         SharpDX.DXGI.Format.B8G8R8A8_UNorm
  74                                 ),
  75                                 IsWindowed = true,
  76                                 OutputHandle = ウィンドウハンドル,
  77                                 SampleDescription = new SharpDX.DXGI.SampleDescription( 1, 0 ),
  78                                 SwapEffect = SharpDX.DXGI.SwapEffect.Discard,
  79                                 Usage = SharpDX.DXGI.Usage.RenderTargetOutput,
  80                         };
  81                         // 機能レベル
  82                         var featureLevels = new SharpDX.Direct3D.FeatureLevel[] {
  83                                 SharpDX.Direct3D.FeatureLevel.Level_11_0,
  84                                 SharpDX.Direct3D.FeatureLevel.Level_10_1,
  85                                 SharpDX.Direct3D.FeatureLevel.Level_10_0,
  86                         };
  87                         // デバイスとスワップチェーンを作成する。
  88                         SharpDX.Direct3D11.Device.CreateWithSwapChain(
  89                                 SharpDX.Direct3D.DriverType.Hardware,
  90                                 SharpDX.Direct3D11.DeviceCreationFlags.None,
  91                                 featureLevels,
  92                                 swapChainDesc,
  93                                 out this.bs_D3DDevice,
  94                                 out this.bs_SwapChain );
  95
  96                         Trace.WriteLine( "D3Dデバイスとスワップチェーンを生成しました。" );
  97                         Trace.WriteLine( $"機能レベル: {this.bs_D3DDevice.FeatureLevel.ToString()}" );
  98                         //----------------
  99                         #endregion
 100                         #region " すべての Windows イベントを無視する。具体的には PrintScreen と Alt+Enter 。"
 101                         //----------------
 102                         using( var factory = this.bs_SwapChain.GetParent<SharpDX.DXGI.Factory>() )
 103                         {
 104                                 factory.MakeWindowAssociation( ウィンドウハンドル, SharpDX.DXGI.WindowAssociationFlags.IgnoreAll );
 105                         }
 106                         //----------------
 107                         #endregion
 108                         #region " 深度ステンシルステート "
 109                         //----------------
 110                         var DepthSencil = new SharpDX.Direct3D11.DepthStencilStateDescription() {
 111                                 IsDepthEnabled = true,  // 深度テストあり
 112                                 DepthWriteMask = SharpDX.Direct3D11.DepthWriteMask.All,     // 書き込む
 113                                 DepthComparison = SharpDX.Direct3D11.Comparison.Less,   // 手前の物体を描画
 114                                 IsStencilEnabled = false,   // ステンシルテストなし。
 115                                 StencilReadMask = 0,    // ステンシル読み込みマスク。
 116                                 StencilWriteMask = 0,   // ステンシル書き込みマスク。
 117
 118                                 // 面が表を向いている場合のステンシル・テストの設定
 119                                 FrontFace = new SharpDX.Direct3D11.DepthStencilOperationDescription() {
 120                                         FailOperation = SharpDX.Direct3D11.StencilOperation.Keep,   // 維持
 121                                         DepthFailOperation = SharpDX.Direct3D11.StencilOperation.Keep,  // 維持
 122                                         PassOperation = SharpDX.Direct3D11.StencilOperation.Keep,   // 維持
 123                                         Comparison = SharpDX.Direct3D11.Comparison.Never,   // 常に失敗
 124                                 },
 125
 126                                 // 面が裏を向いている場合のステンシル・テストの設定
 127                                 BackFace = new SharpDX.Direct3D11.DepthStencilOperationDescription() {
 128                                         FailOperation = SharpDX.Direct3D11.StencilOperation.Keep,   // 維持
 129                                         DepthFailOperation = SharpDX.Direct3D11.StencilOperation.Keep,  // 維持
 130                                         PassOperation = SharpDX.Direct3D11.StencilOperation.Keep,   // 維持
 131                                         Comparison = SharpDX.Direct3D11.Comparison.Always,  // 常に成功
 132                                 },
 133                         };
 134                         this.bs_DepthStencilState = new SharpDX.Direct3D11.DepthStencilState( this.bs_D3DDevice, DepthSencil );
 135                         //----------------
 136                         #endregion
 137                         #region " シェーダーリソースビュー "
 138                         //----------------
 139                         this.bs_ShaderResourceView = FDK.Utilities.CreateShaderResourceViewFromFile(
 140                                 this.D3DDevice, "テスト用テクスチャ画像.jpg", out this.ShaderResourceViewSize );
 141                         //D3DX11CreateShaderResourceViewFromFile( g_pD3DDevice, L"texture.png", NULL, NULL, &g_pTextureSRV, &hr );
 142                         //----------------
 143                         #endregion
 144                         #region " サンプラー "
 145                         //----------------
 146                         var descSampler = new SharpDX.Direct3D11.SamplerStateDescription() {
 147                                 Filter = SharpDX.Direct3D11.Filter.Anisotropic,
 148                                 AddressU = SharpDX.Direct3D11.TextureAddressMode.Wrap,
 149                                 AddressV = SharpDX.Direct3D11.TextureAddressMode.Wrap,
 150                                 AddressW = SharpDX.Direct3D11.TextureAddressMode.Wrap,
 151                                 MipLodBias = 0.0f,
 152                                 MaximumAnisotropy = 2,
 153                                 ComparisonFunction = SharpDX.Direct3D11.Comparison.Never,
 154                                 BorderColor = new SharpDX.Mathematics.Interop.RawColor4( 0f, 0f, 0f, 0f ),
 155                                 MinimumLod = float.MinValue,
 156                                 MaximumLod = float.MaxValue,
 157                         };
 158                         this.bs_SamplerState = new SharpDX.Direct3D11.SamplerState( this.bs_D3DDevice, descSampler );
 159                         //----------------
 160                         #endregion
 161
 162                         this.サイズに依存するリソースを作成する();
 163                 }
 164                 public void すべてのリソースを解放する()
 165                 {
 166                         // デバイスステートをクリアする。
 167                         this.bs_D3DDevice?.ImmediateContext?.ClearState();
 168
 169                         // スワップチェインをウインドウモードにする。
 170                         this.bs_SwapChain?.SetFullscreenState( fullscreen: false, targetRef: null );
 171
 172                         this.サイズに依存するリソースを解放する();
 173
 174                         // 取得したインターフェイスの開放
 175                         this.bs_DepthStencilState?.Dispose();
 176                         this.bs_SamplerState?.Dispose();
 177                         this.bs_ShaderResourceView?.Dispose();
 178                         this.bs_SwapChain?.Dispose();
 179                         this.bs_D3DDevice?.Dispose();
 180                 }
 181                 public void サイズに依存するリソースを作成する()
 182                 {
 183                         #region " スワップチェーンのサイズを変更する。"
 184                         //----------------
 185                         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。
 186                         this.SwapChain.ResizeBuffers(
 187                                 bufferCount: 2,
 188                                 width: (int) this.物理画面サイズpx.Width,
 189                                 height: (int) this.物理画面サイズpx.Height,
 190                                 newFormat: SharpDX.DXGI.Format.R8G8B8A8_UNorm,
 191                                 swapChainFlags: SharpDX.DXGI.SwapChainFlags.AllowModeSwitch );
 192                         //----------------
 193                         #endregion
 194
 195                         // 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。
 196                         using( var backBuffer = SharpDX.Direct3D11.Texture2D.FromSwapChain<SharpDX.Direct3D11.Texture2D>( this.bs_SwapChain, 0 ) )
 197                         {
 198                                 #region " RenderTargetView の作成 "
 199                                 //----------------
 200                                 this.bs_RenderTargetView = new SharpDX.Direct3D11.RenderTargetView( this.bs_D3DDevice, backBuffer );
 201                                 //----------------
 202                                 #endregion
 203                                 #region " 深度ステンシルテクスチャの作成 "
 204                                 //----------------
 205                                 var descDepth = backBuffer.Description;
 206                                 //descDepth.Width = backBuffer.Description.Width;       → backBuffer に同じ
 207                                 //descDepth.Height = backBuffer.Description.Height;     → 同上
 208                                 descDepth.MipLevels = 1;    // ミップマップレベル数
 209                                 descDepth.ArraySize = 1;    // 配列サイズ
 210                                 descDepth.Format = SharpDX.DXGI.Format.D32_Float;   // フォーマット（深度のみ）
 211                                 descDepth.Usage = SharpDX.Direct3D11.ResourceUsage.Default; // デフォルト使用法
 212                                 descDepth.BindFlags = SharpDX.Direct3D11.BindFlags.DepthStencil;    // 深度ステンシル
 213                                 descDepth.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None;  // CPUからはアクセスしない
 214                                 descDepth.OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None;    // その他の設定なし
 215
 216                                 this.bs_DepthStencil = new SharpDX.Direct3D11.Texture2D( this.bs_D3DDevice, descDepth );
 217                                 //----------------
 218                                 #endregion
 219                                 #region " 深度ステンシルビューの作成 "
 220                                 //----------------
 221                                 var descDSV = new SharpDX.Direct3D11.DepthStencilViewDescription() {
 222                                         Format = descDepth.Format,
 223                                         Dimension = SharpDX.Direct3D11.DepthStencilViewDimension.Texture2D,
 224                                         Flags = SharpDX.Direct3D11.DepthStencilViewFlags.None,
 225                                 };
 226                                 descDSV.Texture2D.MipSlice = 0;
 227                                 this.bs_DepthStencilView = new SharpDX.Direct3D11.DepthStencilView(
 228                                         this.bs_D3DDevice,
 229                                         this.bs_DepthStencil,
 230                                         descDSV );
 231                                 //----------------
 232                                 #endregion
 233                                 #region " ビューポートの設定 "
 234                                 //----------------
 235                                 this.bs_ViewPort[ 0 ] = new SharpDX.Mathematics.Interop.RawViewportF() {
 236                                         X = 0.0f,
 237                                         Y = 0.0f,
 238                                         Width = (float) backBuffer.Description.Width,
 239                                         Height = (float) backBuffer.Description.Height,
 240                                         MinDepth = 0.0f,
 241                                         MaxDepth = 1.0f,
 242                                 };
 243                                 //----------------
 244                                 #endregion
 245                                 #region " テクスチャの共有リソースの作成 "
 246                                 //----------------
 247                                 FDK.メディア.テクスチャ.共有リソースを作成する( this );
 248                                 //----------------
 249                                 #endregion
 250                         }
 251                 }
 252                 public void サイズに依存するリソースを解放する()
 253                 {
 254                         // 描画ターゲットを解除する。
 255                         this.D3DDevice.ImmediateContext.OutputMerger.ResetTargets();
 256
 257                         FDK.メディア.テクスチャ.共有リソースを解放する();
 258                         this.bs_DepthStencilView?.Dispose();
 259                         this.bs_DepthStencil?.Dispose();
 260                         this.bs_RenderTargetView?.Dispose();
 261                         //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）。
 262
 263                         // (0,0)は、サイズ依存リソース無効の印。
 264                         this.物理画面サイズpx = new SharpDX.Size2F( 0, 0 );
 265                 }
 266                 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 )
 267                 {
 268                         異常状態なのでアプリを終了せよ = false;
 269
 270                         var 削除理由 = this.bs_D3DDevice.DeviceRemovedReason;
 271                         if( 削除理由.Success )
 272                                 return;
 273
 274                         var エラー詳細 = new[] {
 275                                         new { Code = SharpDX.DXGI.ResultCode.DeviceHung.Code, Info = SharpDX.DXGI.ResultCode.DeviceHung.ApiCode, Rebuild = true },
 276                                         new { Code = SharpDX.DXGI.ResultCode.DeviceReset.Code, Info = SharpDX.DXGI.ResultCode.DeviceReset.ApiCode, Rebuild = true },
 277                                         new { Code = SharpDX.DXGI.ResultCode.DeviceRemoved.Code, Info = SharpDX.DXGI.ResultCode.DeviceRemoved.ApiCode, Rebuild = false },
 278                                         new { Code = SharpDX.DXGI.ResultCode.DriverInternalError.Code, Info = SharpDX.DXGI.ResultCode.DriverInternalError.ApiCode, Rebuild = false },
 279                                         new { Code = SharpDX.DXGI.ResultCode.InvalidCall.Code, Info = SharpDX.DXGI.ResultCode.InvalidCall.ApiCode, Rebuild = false },
 280                                 }.First( ( エラー ) => エラー.Code == 削除理由.Code );  // 見つからないなら System.InvalidOperationException 。
 281
 282                         Trace.WriteLine( $"D3Dデバイスが消失しました: {エラー詳細.Info}" );
 283
 284                         if( エラー詳細.Rebuild )
 285                         {
 286                                 this.すべてのリソースを解放する();
 287                                 this.すべてのリソースを作成する();
 288                         }
 289                         else
 290                         {
 291                                 異常状態なのでアプリを終了せよ = true;
 292                         }
 293                 }
 294
 295                 private float dz( float 高さdpx, float 視野角deg )
 296                 {
 297                         return (float) ( 高さdpx / ( 4.0 * Math.Tan( SharpDX.MathUtil.DegreesToRadians( 視野角deg / 2.0f ) ) ) );
 298                 }
 299
 300                 #region " バックストア。"
 301                 //----------------
 302                 private SharpDX.Direct3D11.Device bs_D3DDevice = null;
 303                 private SharpDX.DXGI.SwapChain bs_SwapChain = null;
 304                 private SharpDX.Mathematics.Interop.RawViewportF[] bs_ViewPort = new SharpDX.Mathematics.Interop.RawViewportF[ 1 ];
 305                 private SharpDX.Direct3D11.DepthStencilState bs_DepthStencilState = null;
 306                 private SharpDX.Direct3D11.ShaderResourceView bs_ShaderResourceView = null;
 307                 private SharpDX.Direct3D11.SamplerState bs_SamplerState = null;
 308                 private SharpDX.Direct3D11.RenderTargetView bs_RenderTargetView = null;
 309                 private SharpDX.Direct3D11.Texture2D bs_DepthStencil = null;
 310                 private SharpDX.Direct3D11.DepthStencilView bs_DepthStencilView = null;
 311                 //----------------
 312                 #endregion
 313         }
 314 }