148 lines
7.4 KiB
C#
148 lines
7.4 KiB
C#
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// Copyright (c) 2010-2014 SharpDX - Alexandre Mutel
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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using System;
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using System.Runtime.InteropServices;
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using SharpDX.Multimedia;
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namespace SharpDX.DirectSound
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{
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public partial class SoundBuffer
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{
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/// <unmanaged>HRESULT IDirectSoundBuffer::Play([None] int dwReserved1,[None] int dwPriority,[None] int dwFlags)</unmanaged>
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public void Play(int priority, SharpDX.DirectSound.PlayFlags flags)
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{
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Play(0, priority, flags);
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}
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/// <summary>
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/// The Lock method readies all or part of the buffer for a data write and returns pointers to which data can be written.
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/// </summary>
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/// <param name="offset"> Offset, in bytes, from the start of the buffer to the point where the lock begins. This parameter is ignored if DSBLOCK_FROMWRITECURSOR is specified in the dwFlags parameter. </param>
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/// <param name="sizeBytes"> Size, in bytes, of the portion of the buffer to lock. The buffer is conceptually circular, so this number can exceed the number of bytes between dwOffset and the end of the buffer. </param>
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/// <param name="flags"> Flags modifying the lock event. The following flags are defined: ValueDescription DSBLOCK_FROMWRITECURSORStart the lock at the write cursor. The dwOffset parameter is ignored. DSBLOCK_ENTIREBUFFERLock the entire buffer. The dwBytes parameter is ignored. </param>
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/// <param name="secondPart"> Address of a variable that receives a pointer to the second locked part of the capture buffer. If NULL is returned, the ppvAudioPtr1 parameter points to the entire locked portion of the capture buffer. </param>
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/// <returns>Address of a variable that receives a pointer to the first locked part of the buffer.</returns>
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/// <unmanaged>HRESULT IDirectSoundBuffer::Lock([None] int dwOffset,[None] int dwBytes,[Out] void** ppvAudioPtr1,[Out] int* pdwAudioBytes1,[Out] void** ppvAudioPtr2,[Out, Optional] int* pdwAudioBytes2,[None] int dwFlags)</unmanaged>
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public DataStream Lock(int offset, int sizeBytes, LockFlags flags, out DataStream secondPart)
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{
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IntPtr dataPart1;
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int sizePart1;
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IntPtr dataPart2;
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int sizePart2;
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Lock(offset, sizeBytes, out dataPart1, out sizePart1, out dataPart2, out sizePart2, flags);
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secondPart = null;
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if (dataPart2 != IntPtr.Zero)
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secondPart = new DataStream(dataPart2, sizePart2, true, true);
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return new DataStream(dataPart1, sizePart1, true, true);
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}
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/// <summary>
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/// The Unlock method releases a locked sound buffer.
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/// </summary>
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/// <param name="dataPart1"> Address of the value retrieved in the ppvAudioPtr1 parameter of the {{Lock}} method. </param>
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/// <param name="dataPart2"> Address of the value retrieved in the ppvAudioPtr2 parameter of the IDirectSoundBuffer8::Lock method. </param>
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/// <returns>No documentation.</returns>
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/// <unmanaged>HRESULT IDirectSoundBuffer::Unlock([In, Buffer] void* pvAudioPtr1,[None] int dwAudioBytes1,[In, Buffer, Optional] void* pvAudioPtr2,[None] int dwAudioBytes2)</unmanaged>
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public void Unlock(DataStream dataPart1, DataStream dataPart2)
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{
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if (dataPart2 != null)
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Unlock(dataPart1.DataPointer, (int)dataPart1.Length, dataPart2.DataPointer, (int)dataPart2.Length);
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else
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Unlock(dataPart1.DataPointer, (int)dataPart1.Length, IntPtr.Zero, 0);
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}
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/// <summary>
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/// Writes data to the buffer.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="data">The data.</param>
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/// <param name="bufferOffset">The buffer offset.</param>
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/// <param name="flags">The flags.</param>
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public void Write<T>(T[] data, int bufferOffset, LockFlags flags) where T : struct
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{
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this.Write<T>(data, 0, data.Length, bufferOffset, flags);
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}
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/// <summary>
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/// Writes data to the buffer.
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/// </summary>
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/// <typeparam name="T"></typeparam>
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/// <param name="data">The data.</param>
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/// <param name="startIndex">The start index.</param>
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/// <param name="count">The count.</param>
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/// <param name="bufferOffset">The buffer offset.</param>
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/// <param name="flags">The flags.</param>
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public void Write<T>(T[] data, int startIndex, int count, int bufferOffset, LockFlags flags) where T : struct
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{
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DataStream stream2 = null;
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//Utilities.CheckArrayBounds(data, startIndex, ref count);
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int bytes = Utilities.SizeOf<T>() * count;
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DataStream stream1 = this.Lock(bufferOffset, bytes, flags, out stream2);
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int count1 = (int)(((long)((int)stream1.Length)) / (Utilities.SizeOf<T>()));
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stream1.WriteRange<T>(data, startIndex, count1);
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if ((stream2 != null) && (count > count1))
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{
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stream2.WriteRange<T>(data, count1 + startIndex, (int)(((long)((int)stream2.Length)) / (Utilities.SizeOf<T>())));
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}
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Unlock(stream1, stream2);
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}
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/// <summary>
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/// Sets the notification positions.
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/// </summary>
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/// <param name="positions">The positions.</param>
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/// <returns></returns>
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public void SetNotificationPositions(NotificationPosition[] positions)
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{
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using (var notifier = QueryInterface<SoundBufferNotifier>())
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{
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notifier.SetNotificationPositions(positions.Length, positions);
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}
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}
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/// <summary>
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/// Sets the new format for the primary sound buffer.
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/// </summary>
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/// <value>
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/// The wave format.
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/// </value>
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/// <include file="Documentation\CodeComments.xml" path="/comments/comment[@id='IDirectSoundBuffer::SetFormat']/*"/>
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/// <unmanaged>HRESULT IDirectSoundBuffer::SetFormat([In] const WAVEFORMATEX* pcfxFormat)</unmanaged>
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public SharpDX.Multimedia.WaveFormat Format
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{
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set
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{
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var ptr = WaveFormat.MarshalToPtr(value);
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try
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{
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SetFormat(ptr);
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} finally
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{
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Marshal.FreeHGlobal(ptr);
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}
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}
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}
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}
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}
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