105 lines
3.8 KiB
C#
105 lines
3.8 KiB
C#
#region Using Statements
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using System;
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using ANX.Framework.Graphics;
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using ANX.Framework.NonXNA.RenderSystem;
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using SharpDX;
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#endregion
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// This file is part of the ANX.Framework created by the
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// "ANX.Framework developer group" and released under the Ms-PL license.
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// For details see: http://anxframework.codeplex.com/license
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using Dx11 = SharpDX.Direct3D11;
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namespace ANX.RenderSystem.Windows.DX11
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{
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public partial class DxIndexBuffer : INativeIndexBuffer, IDisposable
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{
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public Dx11.Buffer NativeBuffer { get; protected set; }
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#region Constructor
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public DxIndexBuffer(GraphicsDevice graphics, IndexElementSize size, int indexCount, BufferUsage usage)
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{
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elementSize = size;
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GraphicsDeviceDX gd11 = graphics.NativeDevice as GraphicsDeviceDX;
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Dx11.DeviceContext context = gd11 != null ? gd11.NativeDevice as Dx11.DeviceContext : null;
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InitializeBuffer(context.Device, size, indexCount, usage);
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}
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internal DxIndexBuffer(SharpDX.Direct3D11.Device device, IndexElementSize size, int indexCount, BufferUsage usage)
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{
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elementSize = size;
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InitializeBuffer(device, size, indexCount, usage);
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}
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#endregion
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#region InitializeBuffer
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private void InitializeBuffer(Dx11.Device device, IndexElementSize size, int indexCount, BufferUsage usage)
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{
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//TODO: translate and use usage
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var description = new Dx11.BufferDescription()
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{
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// TODO: translate usage
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Usage = Dx11.ResourceUsage.Dynamic,
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SizeInBytes = GetSizeInBytes(indexCount),
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BindFlags = Dx11.BindFlags.IndexBuffer,
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CpuAccessFlags = Dx11.CpuAccessFlags.Write,
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OptionFlags = Dx11.ResourceOptionFlags.None
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};
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NativeBuffer = new SharpDX.Direct3D11.Buffer(device, description);
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}
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#endregion
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protected DataStream MapBufferWrite()
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{
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Dx11.DeviceContext context = NativeBuffer.Device.ImmediateContext;
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DataStream stream;
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context.MapSubresource(NativeBuffer, Dx11.MapMode.WriteDiscard, Dx11.MapFlags.None, out stream);
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return stream;
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}
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protected void UnmapBuffer()
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{
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Dx11.DeviceContext context = NativeBuffer.Device.ImmediateContext;
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context.UnmapSubresource(NativeBuffer, 0);
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}
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private SharpDX.DataStream MapBufferRead(Dx11.Buffer buffer)
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{
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Dx11.DeviceContext context = buffer.Device.ImmediateContext;
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DataStream stream;
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context.MapSubresource(buffer, Dx11.MapMode.Read, Dx11.MapFlags.None, out stream);
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return stream;
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}
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private void UnmapBuffer(Dx11.Buffer buffer)
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{
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Dx11.DeviceContext context = buffer.Device.ImmediateContext;
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context.UnmapSubresource(buffer, 0);
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}
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private void CopySubresource(Dx11.Buffer source, Dx11.Buffer destination)
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{
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BufferHelper.ValidateCopyResource(source, destination);
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this.NativeBuffer.Device.ImmediateContext.CopyResource(source, destination);
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}
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private Dx11.Buffer CreateStagingBuffer()
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{
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var description = new Dx11.BufferDescription()
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{
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Usage = Dx11.ResourceUsage.Staging,
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SizeInBytes = NativeBuffer.Description.SizeInBytes,
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CpuAccessFlags = Dx11.CpuAccessFlags.Read,
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OptionFlags = Dx11.ResourceOptionFlags.None,
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};
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return new Dx11.Buffer(NativeBuffer.Device, description);
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}
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}
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}
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