public int GetAppendStructureCount(DeviceContext context)
{
context.CopyStructureCount(m_UnorderedAccessView, m_StagingCountBufferObject, 0);
DataBox box = context.MapSubresource(m_StagingCountBufferObject, MapMode.Read, SlimDX.Direct3D11.MapFlags.None);
int result = box.Data.Read <int>();
context.UnmapSubresource(m_StagingCountBufferObject, 0);
return(result);
}
private void DebugCount(string src, DeviceContext context, UnorderedAccessView uav)
{
context.CopyStructureCount(particleCountStaging, 0, uav);
DataStream ds;
var db = context.MapSubresource(particleCountStaging, MapMode.Read, MapFlags.None, out ds);
int CurrentParticleCount = ds.ReadInt();
Debug.WriteLine("{0}: {1}", src, CurrentParticleCount);
context.UnmapSubresource(particleCountStaging, 0);
}
public void Update(string generatorCS, string updaterCS)
{
var append = particleUAVs[0];
var consume = particleUAVs[1];
// Assign UAV of particles
context.ComputeShader.SetUnorderedAccessView(0, append);
context.ComputeShader.SetUnorderedAccessView(1, consume);
// Update the constant buffers
// Generate the next random seed for particle generator
Frame.RandomSeed = (uint)random.Next(int.MinValue, int.MaxValue);
context.UpdateSubresource(ref Frame, perFrame);
// Copy current consume buffer count into perFrame
context.CopyStructureCount(perFrame, 4 * 3, consume);
context.ComputeShader.SetConstantBuffer(0, perComputeBuffer);
context.ComputeShader.SetConstantBuffer(1, perFrame);
// Update existing particles
UpdateCS(updaterCS, append, consume);
// Generate new particles (if reached limiter time)
genTime += Frame.FrameTime;
if (genTime > limiter)
{
genTime = 0;
GenerateCS(generatorCS, append);
}
// Retrieve the particle count for the render phase
context.CopyStructureCount(indirectArgsBuffer, 4, append);
// Clear the shader and resources from pipeline stage
context.ComputeShader.SetUnorderedAccessViews(0, null, null, null);
context.ComputeShader.SetUnorderedAccessViews(1, null, null, null);
context.ComputeShader.Set(null);
// Flip UAVs/SRVs
particleUAVs[0] = consume;
particleUAVs[1] = append;
var s = particleSRVs[0];
particleSRVs[0] = particleSRVs[1];
particleSRVs[1] = s;
}
private void DebugCount(string src, DeviceContext context, UnorderedAccessView uav)
{
if (elapsedSinceGenerator > 2)
{
elapsedSinceGenerator = 0;
context.CopyStructureCount(particleCountStaging, 0, uav);
DataStream ds;
var db = context.MapSubresource(particleCountStaging, MapMode.Read, SharpDX.Direct3D11.MapFlags.None, out ds);
CurrentParticleCount = ds.ReadInt();
System.Diagnostics.Debug.WriteLine("{0}: {1},{2},{3},{4}", src, CurrentParticleCount, (uint)ds.ReadInt(), (uint)ds.ReadInt(), (uint)ds.ReadInt());
context.UnmapSubresource(particleCountStaging, 0);
}
}
public void Update(DX11RenderContext context)
{
Device device = context.Device;
DeviceContext ctx = context.CurrentDeviceContext;
if (!this.FOutBuffer[0].Contains(context))
{
DX11RawBuffer rb = new DX11RawBuffer(device, 16);
this.FOutBuffer[0][context] = rb;
}
if (this.FInBuffer.IsConnected)
{
UnorderedAccessView uav = this.FInBuffer[0][context].UAV;
ctx.CopyStructureCount(uav, this.FOutBuffer[0][context].Buffer, 0);
}
}
public void CopyVertexCount(DeviceContext ctx, UnorderedAccessView uav)
{
ctx.CopyStructureCount(uav, this.Buffer, 0);
}
public void CopyIndicesCount(DeviceContext ctx, UnorderedAccessView uav)
{
ctx.CopyStructureCount(this.ArgumentBuffer, 0, uav);
}
public void Update(IPluginIO pin, DX11RenderContext context)
{
Device device = context.Device;
DeviceContext ctx = context.CurrentDeviceContext;
if ( !this.FOutPointcloudRingBuffer[0].Contains(context) || !this.FOutUpdatedBuffer[0].Contains(context) || !this.bCounter.Contains(context) || !this.bOffset.Contains(context) || this.FInPointcloudRingBufferSize.IsChanged || this.FInEleCount.IsChanged)
{
this.FOutPointcloudRingBuffer[0].Dispose(context);
DX11RWStructuredBuffer brPointcloud = new DX11RWStructuredBuffer(device, FInPointcloudRingBufferSize[0], FInStride[0], eDX11BufferMode.Counter);
this.FOutPointcloudRingBuffer[0][context] = brPointcloud;
this.FOutUpdatedBuffer[0].Dispose(context);
DX11RWStructuredBuffer brUpdated = new DX11RWStructuredBuffer(device, FInPointcloudRingBufferSize[0], 4, eDX11BufferMode.Counter);
this.FOutUpdatedBuffer[0][context] = brUpdated;
this.bOffset.Dispose(context);
this.bOffset[context] = new DX11RawBuffer(device, 16);
this.bCounter.Dispose(context);
this.bCounter[context] = new DX11RWStructuredBuffer(device, FInEleCount[0], 4, eDX11BufferMode.Counter);
}
// load shader
if (this.shader == null)
{
string basepath = "RingBuffer.effects.RingBuffer.fx";
DX11Effect effect = DX11Effect.FromResource(Assembly.GetExecutingAssembly(), basepath);
this.shader = new DX11ShaderInstance(context, effect);
}
if (this.FInPointcloudBuffer.PluginIO.IsConnected && FInSet[0] && currentFrame != FHDEHost.FrameTime)
{
currentFrame = FHDEHost.FrameTime; // prevents to execute this a second time
int[] mask = new int[4] { 0, 0, 0, 0 };
ctx.ClearUnorderedAccessView(FOutUpdatedBuffer[0][context].UAV, mask);
shader.SelectTechnique("AddPoints");
shader.SetBySemantic("POINTCLOUDBUFFER", FInPointcloudBuffer[0][context].SRV);
shader.SetBySemantic("POINTCLOUDCOUNTBUFFER", FInCountBuffer[0][context].SRV);
shader.SetBySemantic("POINTCLOUDRINGBUFFER", FOutPointcloudRingBuffer[0][context].UAV, FInPointcloudRingBufferSize[0]);
shader.SetBySemantic("UPDATEDRINGBUFFER", FOutUpdatedBuffer[0][context].UAV, FInPointcloudRingBufferSize[0]);
shader.SetBySemantic("POINTCLOUDRINGBUFFERSIZE", FInPointcloudRingBufferSize[0]);
shader.SetBySemantic("OFFSETBUFFER", this.bOffset[context].SRV);
shader.SetBySemantic("COUNTERBUFFER", this.bCounter[context].UAV, 0);
shader.ApplyPass(0);
ctx.Dispatch((FInEleCount[0] + 63) / 64, 1, 1);
ctx.CopyStructureCount(this.bCounter[context].UAV, this.bOffset[context].Buffer, 0);
shader.SelectTechnique("CalcOffset");
shader.ApplyPass(0);
ctx.Dispatch(1, 1, 1);
context.CleanUp();
context.CleanUpCS();
}
}
/// <summary>
/// Copies the count.
/// </summary>
/// <param name="device">The device.</param>
/// <param name="destBuffer">The dest buffer.</param>
/// <param name="offset">The offset.</param>
public void CopyCount(DeviceContext device, SDX11.Buffer destBuffer, int offset)
{
device.CopyStructureCount(destBuffer, offset, UAV);
}
public int GetAppendStructureCount(DeviceContext context)
{
context.CopyStructureCount(m_UnorderedAccessView, m_StagingCountBufferObject, 0);
DataBox box = context.MapSubresource(m_StagingCountBufferObject, MapMode.Read, SlimDX.Direct3D11.MapFlags.None);
int result = box.Data.Read<int>();
context.UnmapSubresource(m_StagingCountBufferObject, 0);
return result;
}