C# BufferDescription类代码示例

        public Sky(Device device, string filename, float skySphereRadius) {
            CubeMapSRV = ShaderResourceView.FromFile(device, filename);
            using (var r = CubeMapSRV.Resource) {
                r.DebugName = "sky cubemap";
            }
            
            var sphere = GeometryGenerator.CreateSphere(skySphereRadius, 30, 30);
            var vertices = sphere.Vertices.Select(v => v.Position).ToArray();
            var vbd = new BufferDescription(
                Marshal.SizeOf(typeof(Vector3)) * vertices.Length, 
                ResourceUsage.Immutable, 
                BindFlags.VertexBuffer, 
                CpuAccessFlags.None, 
                ResourceOptionFlags.None, 
                0
            );
            _vb = new Buffer(device, new DataStream(vertices, false, false), vbd);

            _indexCount = sphere.Indices.Count;
            var ibd = new BufferDescription(
                _indexCount * sizeof(int), 
                ResourceUsage.Immutable, 
                BindFlags.IndexBuffer, 
                CpuAccessFlags.None, 
                ResourceOptionFlags.None, 
                0
            );
            _ib = new Buffer(device, new DataStream(sphere.Indices.ToArray(), false, false), ibd);

        }

        /** 指定の音声データを読み込む*/
        public bool loadWave(int idx, string fname)
        {
            try
            {
                BufferDescription desc = null;
                desc = new BufferDescription();
                desc.ControlPan = true;
                desc.GlobalFocus = true;

                //現在実行中のアセンブリを取得
                Assembly thisExe = Assembly.GetExecutingAssembly();
                string assemblyName = thisExe.GetName().Name;

            //				string FileName = assemblyName + "." + fname;
                string FileName = "DoujinGameProject.Resources." + fname;

                //埋め込みファイルのストリームを取得
                Stream stream = thisExe.GetManifestResourceStream(FileName);
                //ストリームからバッファ作成
                bufSec[idx] = new SecondaryBuffer(stream, desc, devSound);
                //ストリームを閉じる！
                stream.Close();

            //				bufSec[idx] = new SecondaryBuffer(fname, devSound);
            }
            catch (Exception e)
            {
                sErr = "[loadWaveエラー]" + e.ToString();
                return false;
            }
            return true;
        }

 /// <summary>
 /// Initializes a new instance of the <see cref="WVPTransformShader" /> class.
 /// </summary>
 /// <param name="device">The device.</param>
 /// <param name="vertexShaderPath">The vertex shader path.</param>
 /// <param name="pixelShaderPath">The pixel shader path.</param>
 public WVPTransformShader(Device device, string vertexShaderPath, string pixelShaderPath, IInputLayoutProvider inputLayoutMaker)
     : base(device, vertexShaderPath, pixelShaderPath, inputLayoutMaker)
 {
     Contract.Ensures(matrixConstantBuffer != null, "matrixConstantBuffer must not be null after this method executes.");
     BufferDescription matrixBufferDesc = new BufferDescription(System.Runtime.InteropServices.Marshal.SizeOf(typeof(MatrixCBuffer)), ResourceUsage.Default, BindFlags.ConstantBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
     matrixConstantBuffer = new SlimDX.Direct3D11.Buffer(device, matrixBufferDesc);
 }

        public Minimap(Device device, DeviceContext dc, int minimapWidth, int minimapHeight, Terrain terrain, CameraBase viewCam)
        {
            _dc = dc;

            _minimapViewport = new Viewport(0, 0, minimapWidth, minimapHeight);

            CreateMinimapTextureViews(device, minimapWidth, minimapHeight);

            _terrain = terrain;

            SetupOrthoCamera();
            _viewCam = viewCam;

            // frustum vb will contain four corners of view frustum, with first vertex repeated as the last
            var vbd = new BufferDescription(
                VertexPC.Stride * 5,
                ResourceUsage.Dynamic,
                BindFlags.VertexBuffer,
                CpuAccessFlags.Write,
                ResourceOptionFlags.None,
                0
            );
            _frustumVB = new Buffer(device, vbd);

            _edgePlanes = new[] {
            new Plane(1, 0, 0, -_terrain.Width / 2),
            new Plane(-1, 0, 0, _terrain.Width / 2),
            new Plane(0, 1, 0, -_terrain.Depth / 2),
            new Plane(0, -1, 0, _terrain.Depth / 2)
            };

            ScreenPosition = new Vector2(0.25f, 0.75f);
            Size = new Vector2(0.25f, 0.25f);
        }

        /// <summary>
        /// Carga un archivo WAV de audio, indicando el volumen del mismo
        /// Solo se pueden cargar sonidos WAV que sean MONO (1 channel).
        /// Sonidos stereos (2 channels) no pueden ser utilizados.
        /// </summary>
        /// <param name="soundPath">Path del archivo WAV</param>
        /// <param name="volume">Volumen del mismo</param>
        public void loadSound(string soundPath, int volume)
        {
            try
            {
                dispose();

                BufferDescription bufferDescription = new BufferDescription();
                bufferDescription.Control3D = true;
                if (volume != -1)
                {
                    bufferDescription.ControlVolume = true;
                }

                soundBuffer = new SecondaryBuffer(soundPath, bufferDescription, GuiController.Instance.DirectSound.DsDevice);
                buffer3d = new Buffer3D(soundBuffer);
                buffer3d.MinDistance = 50;

                if (volume != -1)
                {
                    soundBuffer.Volume = volume;
                }
            }
            catch (Exception ex)
            {
                throw new Exception("Error al cargar sonido estático WAV: " + soundPath, ex);
            }
        }

        public ObjRenderer(Form1 F)
            : base(F.Device)
        {
            P = F;
            PortalRoomManager.Equals(null, null);
            S = new Sorter();
            string s0 = Environment.CurrentDirectory + "/resources/shaders/ambient_fast.fx";
            SB_V = ShaderBytecode.CompileFromFile(s0, "VS_STATIC", "vs_4_0", ManagedSettings.ShaderCompileFlags, EffectFlags.None);
            SB_P = ShaderBytecode.CompileFromFile(s0, "PS", "ps_4_0", ManagedSettings.ShaderCompileFlags, EffectFlags.None);
            VS = new VertexShader(F.Device.HadrwareDevice(), SB_V);
            PS = new PixelShader(F.Device.HadrwareDevice(), SB_P);
            IL = new InputLayout(Device.HadrwareDevice(), SB_V, StaticVertex.ies);
            BufferDescription desc = new BufferDescription
            {
                Usage = ResourceUsage.Default,
                SizeInBytes = 2 * 64,
                BindFlags = BindFlags.ConstantBuffer
            };
            cBuf = new SlimDX.Direct3D11.Buffer(Device.HadrwareDevice(), desc);
            dS = new DataStream(2 * 64, true, true);

            BufferDescription desc2 = new BufferDescription
            {
                Usage = ResourceUsage.Default,
                SizeInBytes = 64,
                BindFlags = BindFlags.ConstantBuffer
            };
            cBuf2 = new SlimDX.Direct3D11.Buffer(Device.HadrwareDevice(), desc2);
            dS2 = new DataStream(64, true, true);
        }

        public static void Initialize(System.Windows.Forms.Control Parent)
        {
            // Initialize sound
            sounddevice = new DS.Device();
            sounddevice.SetCooperativeLevel(Parent, CooperativeLevel.Normal);

            //BufferDescription description = new BufferDescription();
            description = new BufferDescription();
            description.ControlEffects = false;

            shotsound = new SecondaryBuffer[10];
            //shotsound[0]
            //    = new SecondaryBuffer("turn-left.wav", description, sounddevice);
            //shotsound[1]
            //    = new SecondaryBuffer("turn-left.wav", description, sounddevice);
            shotsound[2]
                = new SecondaryBuffer("turn-left.wav", description, sounddevice);
            shotsound[3]
                = new SecondaryBuffer("turn-right.wav", description, sounddevice);
            shotsound[4]
                = new SecondaryBuffer("horn.wav", description, sounddevice);
            shotsound[5]
                = new SecondaryBuffer("ignition.wav", description, sounddevice);
            shotsound[6]
                = new SecondaryBuffer("police_siren.wav", description, sounddevice);
            shotsound[7]
                = new SecondaryBuffer("ambulance_siren.wav", description, sounddevice);
            //shotsound[8]
            //    = new SecondaryBuffer("ignition.wav", description, sounddevice);
            //shotsound[9]
            //    = new SecondaryBuffer("ignition.wav", description, sounddevice);

            //shotsound = new SecondaryBuffer("horn.wav", description, sounddevice);
            //shotsound.Play(0, BufferPlayFlags.Default);
        }

        public DX11RawBuffer(Device dev, int size, DX11RawBufferFlags flags= new DX11RawBufferFlags())
        {
            this.Size = size;

            BufferDescription bd = new BufferDescription()
            {
                BindFlags = BindFlags.ShaderResource | BindFlags.UnorderedAccess,
                CpuAccessFlags = CpuAccessFlags.None,
                OptionFlags = ResourceOptionFlags.RawBuffer,
                SizeInBytes = this.Size,
                Usage = ResourceUsage.Default,
            };
            this.Buffer = new Buffer(dev, bd);

            ShaderResourceViewDescription srvd = new ShaderResourceViewDescription()
            {
                Format = SlimDX.DXGI.Format.R32_Typeless,
                Dimension = ShaderResourceViewDimension.ExtendedBuffer,
                Flags = ShaderResourceViewExtendedBufferFlags.RawData,
                ElementCount = size / 4
            };
            this.SRV = new ShaderResourceView(dev, this.Buffer, srvd);

            UnorderedAccessViewDescription uavd = new UnorderedAccessViewDescription()
            {
                Format = SlimDX.DXGI.Format.R32_Typeless,
                Dimension = UnorderedAccessViewDimension.Buffer,
                Flags = UnorderedAccessViewBufferFlags.RawData,
                ElementCount = size / 4
            };

            this.UAV = new UnorderedAccessView(dev, this.Buffer, uavd);
        }

        public DX11VertexBuffer(DX11RenderContext context, int verticescount, int vertexsize, bool allowstreamout)
        {
            this.context = context;
            this.TotalSize = verticescount * vertexsize;
            this.AllowStreamOutput = allowstreamout;

            BindFlags flags = BindFlags.VertexBuffer;

            if (allowstreamout)
            {
                flags |= BindFlags.StreamOutput;
            }

            BufferDescription bd = new BufferDescription()
            {
                BindFlags = flags,
                CpuAccessFlags = CpuAccessFlags.None,
                OptionFlags = ResourceOptionFlags.None,
                SizeInBytes = this.TotalSize,
                Usage = ResourceUsage.Default
            };

            this.Buffer = new SlimDX.Direct3D11.Buffer(context.Device, bd);
            this.VertexSize = vertexsize;
            this.VerticesCount = verticescount;
        }

        public Sound(string filename, int ID, short type)
            : base(filename, ID)
        {
            // get the file data
            WaveFile wf = FileManager.Instance.Load(filename);

            if(wf.WavFile != null) // we have a wave file with headers
            {
                // set up the buffer properties
                soundDesc = new BufferDescription();
                soundDesc.GlobalFocus = false;
                soundDesc.ControlVolume = true;

                // enable 3D features for 3D sounds
                if(type == Sound.THREED_SOUND)
                {
                    soundDesc.Control3D = true;
                    soundDesc.Mute3DAtMaximumDistance = true;
                }

                // load the wave file from the stream into the buffer
                sound = new SecondaryBuffer(wf.WavFile, soundDesc, ((DirectSoundManager)SoundManager.Instance).Device);

            } else { // we have only raw PCM encoded sound data (usually from a decoder)

                // convert the format settings
                WaveFormat wfo = new WaveFormat();
                wfo.BitsPerSample = wf.Bits;
                wfo.Channels = wf.Channels;
                wfo.SamplesPerSecond = wf.Frequency;
                wfo.BlockAlign = (short)(wf.Bits*wf.Channels / 8);
                wfo.FormatTag = WaveFormatTag.Pcm;
                wfo.AverageBytesPerSecond = wf.Frequency * wfo.BlockAlign;

                // set up buffer properties
                soundDesc = new BufferDescription(wfo);
                soundDesc.GlobalFocus = false;
                soundDesc.ControlVolume = true;
                soundDesc.BufferBytes = (int)wf.Data.Length;

                // enable 3D features for 3D sounds
                if(type == Sound.THREED_SOUND)
                {
                    soundDesc.Control3D = true;
                    soundDesc.Mute3DAtMaximumDistance = true;
                }

                // initialise the buffer and copy the (raw data) stream into it
                sound = new SecondaryBuffer(soundDesc, ((DirectSoundManager)SoundManager.Instance).Device);
                sound.Write(0, wf.Data, (int)wf.Data.Length, LockFlag.EntireBuffer);
            }

            // create a 3D buffer for 3D sounds
            if(type == Sound.THREED_SOUND)
            {
                threeDsound = new Buffer3D(sound);
                threeDsound.Mode = Mode3D.Normal;
                threeDsound.Deferred = true;
            }
        }

 protected TransparencyShader(Device device, string vertexShaderPath, string pixelShaderPath, IInputLayoutProvider inputLayoutMaker)
     : base(device, vertexShaderPath, pixelShaderPath, inputLayoutMaker)
 {
     Contract.Ensures(transparencyConstantBuffer != null, "lightConstantBuffer must be instantiated by this function.");
     BufferDescription transparencyBufferDesc = new BufferDescription(System.Runtime.InteropServices.Marshal.SizeOf(typeof(TransparencyCBuffer)), ResourceUsage.Default, BindFlags.ConstantBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
     transparencyConstantBuffer = new SlimDX.Direct3D11.Buffer(device, transparencyBufferDesc);
 }

        public DX11IndexBuffer(DX11RenderContext context, DataStream initial,bool dynamic, bool dispose)
        {
            this.context = context;
            format = SlimDX.DXGI.Format.R32_UInt;

            BindFlags flags = BindFlags.IndexBuffer;

            if (context.IsFeatureLevel11) { flags |= BindFlags.ShaderResource; }

            BufferDescription bd = new BufferDescription()
            {
                BindFlags = flags,
                CpuAccessFlags = dynamic ? CpuAccessFlags.Write : CpuAccessFlags.None,
                OptionFlags = context.IsFeatureLevel11 ? ResourceOptionFlags.RawBuffer : ResourceOptionFlags.None,
                SizeInBytes = (int)initial.Length,
                Usage = dynamic ? ResourceUsage.Dynamic : ResourceUsage.Default,
            };

            initial.Position = 0;
            this.IndicesCount = (int)initial.Length / 4;
            this.Buffer = new SlimDX.Direct3D11.Buffer(context.Device, initial, bd);

            this.CreateSRV();

            if (dispose) { initial.Dispose(); }
        }

        public SoundPlayer(Control owner, PullAudio pullAudio, string sample, short channels)
        {
            if (sample == null || File.Exists(sample) == false)
                return;
            this.channels = channels;
            this.pullAudio = pullAudio;
            this.samplefile = sample;
            this._owner = owner;

            this.soundDevice = new Device();
            this.soundDevice.SetCooperativeLevel(_owner, CooperativeLevel.Priority);

            // Set up our wave format to 44,100Hz, with 16 bit resolution
            WaveFormat wf = new WaveFormat();
            wf.FormatTag = WaveFormatTag.Pcm;
            wf.SamplesPerSecond = 44100;
            wf.BitsPerSample = 16;
            wf.Channels = channels;
            wf.BlockAlign = (short)(wf.Channels * wf.BitsPerSample / 8);
            wf.AverageBytesPerSecond = wf.SamplesPerSecond * wf.BlockAlign;

            this.samplesPerUpdate = 512;

            // Create a buffer with 2 seconds of sample data
            BufferDescription bufferDesc = new BufferDescription();
            bufferDesc.BufferBytes = this.samplesPerUpdate * wf.BlockAlign * 2;
            bufferDesc.ControlPositionNotify = true;
            bufferDesc.GlobalFocus = true;
            bufferDesc.ControlFrequency = true;
            bufferDesc.ControlEffects = true;
            bufferDesc.ControlVolume = true;

            this.soundBuffer = new SecondaryBuffer(samplefile, bufferDesc, this.soundDevice);
            this.soundBuffer.Volume = 0;

            Notify notify = new Notify(this.soundBuffer);
            fillEvent[0] = new AutoResetEvent(false);
            fillEvent[1] = new AutoResetEvent(false);

            // Set up two notification events, one at halfway, and one at the end of the buffer
            BufferPositionNotify[] posNotify = new BufferPositionNotify[2];
            posNotify[0] = new BufferPositionNotify();
            posNotify[0].Offset = bufferDesc.BufferBytes / 2 - 1;
            posNotify[0].EventNotifyHandle = fillEvent[0].Handle;
            posNotify[1] = new BufferPositionNotify();
            posNotify[1].Offset = bufferDesc.BufferBytes - 1;
            posNotify[1].EventNotifyHandle = fillEvent[1].Handle;

            notify.SetNotificationPositions(posNotify);

            this.thread = new Thread(new ThreadStart(SoundPlayback));
            this.thread.Priority = ThreadPriority.Lowest;
            this.thread.IsBackground = true;

            this.Pause();
            this.running = true;

            this.thread.Start();
        }

 public GameSound(System.Windows.Forms.Control Owner)
 {
     _bufferDesc = new BufferDescription();
     _bufferDesc.GlobalFocus = true;
     _bufferDesc.Control3D = true;
     _soundDevice = new Device();
     _soundDevice.SetCooperativeLevel(Owner, CooperativeLevel.Normal);
 }

 public SecondaryBuffer GetBuffer(Microsoft.DirectX.DirectSound.Device device, string fileName)
 {
     BufferDescription bd = new BufferDescription();
     bd.ControlEffects = false;
     bd.ControlPan = true;
     bd.ControlVolume = true;
     return new SecondaryBuffer(GetFileStream(fileName), bd, device);
 }