public void InitBuffers(out Buffer Points, out Buffer Regions)
{
// get the number of the points
int SizeOfPoint = ComputeShader.SizeOfFloat2;
// allocate the 2 buffers
g_pBuffer1 = ComputeShader.CreateBuffer(MaxNumElements, SizeOfPoint, AccessViewType.SRV | AccessViewType.UAV);
g_pBuffer1.DebugName = "g_pBuffer1";
g_pBuffer2 = ComputeShader.CreateBuffer(MaxNumElements, SizeOfPoint, AccessViewType.UAV);
g_pBuffer2.DebugName = "g_pBuffer2";
g_pBuffer3 = ComputeShader.CreateBuffer(MaxNumElements, SizeOfPoint, AccessViewType.UAV);
g_pBuffer3.DebugName = "g_pBuffer3";
g_pBuffer_HRegions = ComputeShader.CreateBuffer(20000, RegionInfo.GetStructSize(), AccessViewType.UAV);
g_pBuffer_HRegions.DebugName = "g_pBuffer_HRegions";
g_pBuffer_VRegions = ComputeShader.CreateBuffer(20000, RegionInfo.GetStructSize(), AccessViewType.UAV);
g_pBuffer_VRegions.DebugName = "g_pBuffer_VRegions";
// create the UAVs
uavBuffer1 = FXResourceVariable.InitUAVResource(this.dev, g_pBuffer1);
uavBuffer2 = FXResourceVariable.InitUAVResource(this.dev, g_pBuffer2);
uavBuffer3 = FXResourceVariable.InitUAVResource(this.dev, g_pBuffer3);
uavHRegions = FXResourceVariable.InitUAVResource(this.dev, g_pBuffer_HRegions);
uavVRegions = FXResourceVariable.InitUAVResource(this.dev, g_pBuffer_VRegions);
rvData = new FxResourceVariableList();
rvInput = new FxResourceVariableList();
rvRegionsInput = new FxResourceVariableList();
rvRegionsOutput = new FxResourceVariableList();
// link the buffers with shaders
rvData.AddResourceFromShader(CSBitonicSort.m_effect,"Data");
rvData.AddResourceFromShader(CSMatrixTranspose.m_effect, "Data");
rvData.AddResourceFromShader(CSCopyRegion.m_effect, "Data");
rvData.AddResourceFromShader(CSCopySubBuffer.m_effect, "Data");
rvInput.AddResourceFromShader(CSMatrixTranspose.m_effect, "Input");
rvInput.AddResourceFromShader(CSFindSplitIndexH.m_effect, "Input");
rvInput.AddResourceFromShader(CSFindSplitIndexV.m_effect, "Input");
rvInput.AddResourceFromShader(CSCopyRegion.m_effect, "Input");
rvInput.AddResourceFromShader(CSCopySubBuffer.m_effect, "Input");
//rvRegionsInput.AddResourceFromShader(CSFindSplitIndexH.m_effect, "RegionInfoInput");
rvRegionsInput.AddResourceFromShader(CSFindSplitIndexV.m_effect, "RegionInfoInput");
rvRegionsInput.AddResourceFromShader(CSCopyRegion.m_effect, "RegionInfoInput");
rvRegionsInput.AddResourceFromShader(CSFillRegionInfo.m_effect, "RegionInfoInput");
rvRegionsOutput.AddResourceFromShader(CSFindSplitIndexH.m_effect, "RegionInfoOutput");
rvRegionsOutput.AddResourceFromShader(CSFindSplitIndexV.m_effect, "RegionInfoOutput");
//rvRegionsOutput.AddResourceFromShader(CSCopyRegion.m_effect, "RegionInfoOutput");
rvRegionsOutput.AddResourceFromShader(CSFillRegionInfo.m_effect, "RegionInfoOutput");
// Bind the CB
CBBitonic = CSBitonicSort.m_effect.GetConstantBufferByName<cbBitonic>("CB");
CBTranspose = CSMatrixTranspose.m_effect.GetConstantBufferByName<cbBitonic>("CB");
CBFindSplitIndexH = CSFindSplitIndexH.m_effect.GetConstantBufferByName<CB_Split>("CB_Split");
CBFindSplitIndexV = CSFindSplitIndexV.m_effect.GetConstantBufferByName<CB_Split>("CB_Split");
CBFillRegionInfo = CSFillRegionInfo.m_effect.GetConstantBufferByName<CB_Split>("CB_Split");
CBCopyRegion =CSCopyRegion.m_effect.GetConstantBufferByName<CB_Split>("CB_Split");
CBCopySubBuffer = CSCopySubBuffer.m_effect.GetConstantBufferByName<CB_Split>("CB_Split");
// create a staging buffer
stagingResult = ComputeShader.CreateStagingBuffer(g_pBuffer1);
// set the output
Points = g_pBuffer3;
Regions = g_pBuffer_HRegions; // this is complex :P
}
public void InitShaders(Device device)
{
WriteLine("MaxPointsPerRegion : " + MaxPointsPerRegion.ToString());
NumVertex = listAllVertex.Count;
// select the spliting numbers
// find the split points
PointsPerRegion = MaxPointsPerRegion;
NumRegions = (int)Math.Ceiling((float)NumVertex / (float)PointsPerRegion);
HorizontalRegions = (int)Math.Floor(Math.Sqrt(NumRegions));
VerticalRegions = (int)Math.Floor((float)NumRegions / (float)HorizontalRegions);
// recalc the region number
NumRegions = HorizontalRegions * VerticalRegions;
// inc the max vertex per region
maxVertexPerRegion = (int)((float)MaxPointsPerRegion * 1.3f);
// calc the threads
mergeVYthreadNum = HorizontalRegions;
mergeVXthreadNum = VerticalRegions - 1;
mergeVthreadNum = mergeVXthreadNum * mergeVYthreadNum;
mergeVXkernelNum = (int)Math.Ceiling(mergeVXthreadNum / MergeVXThread);
mergeVYkernelNum = (int)Math.Ceiling(mergeVYthreadNum / MergeVYThread);
mergeHthreadNum = HorizontalRegions - 1;
mergeHkernelNum = (int)Math.Ceiling(mergeHthreadNum / MergeThread);
TimeStatistics.StartClock();
// compile the shader
if (false)
{
CSSubRegions = new ComputeShader(@"Delaunay\Shaders\Triangulation.hlsl", "main", @"Delaunay\Shaders\");
CSVMerging = new ComputeShader(@"Delaunay\Shaders\MergeVertical.hlsl", "main", @"Delaunay\Shaders\");
CSHMerging = new ComputeShader(@"Delaunay\Shaders\MergeHorizontal.hlsl", "main", @"Delaunay\Shaders\");
}
else
{
CSSubRegions = new ComputeShader(@"Delaunay\Shaders_Prebuild\Triangulation.main.fxo");
CSVMerging = new ComputeShader(@"Delaunay\Shaders_Prebuild\MergeVertical.main.fxo");
CSHMerging = new ComputeShader(@"Delaunay\Shaders_Prebuild\MergeHorizontal.main.fxo");
}
bitonicSort = new BitonicSort(NumVertex, device);
float time = TimeStatistics.ClockLap("Load Shaders");
WriteLine("Load Shaders:" + time.ToString());
TimeStatistics.StartClock();
// init variables list
rvlInputPoints = new FxResourceVariableList();
rvlRegionInfo = new FxResourceVariableList();
rvlFaceListBuffer = new FxResourceVariableList();
rvlHalfEdgeListBuffer = new FxResourceVariableList();
rvlBoundaryListBuffer = new FxResourceVariableList();
rvlThreadInfoListBuffer = new FxResourceVariableList();
rvlDelaunayStackBuffer = new FxResourceVariableList();
rvlUintStackBuffer = new FxResourceVariableList();
// init the data
InitDataForCS();
// init the data
bitonicSort.InitBuffers(out InputPoints, out RegionInfo);
// set the data
bitonicSort.FillData(listAllVertex);
srvInputPoints = FXResourceVariable.InitSRVResource(device, InputPoints);
srvRegionInfo = FXResourceVariable.InitSRVResource(device, RegionInfo); // this is complex :P
stagingInputPointsBuffer = ComputeShader.CreateStagingBuffer(InputPoints);
// link the resource with buffers
rvlInputPoints.SetViewsToResources(srvInputPoints);
rvlRegionInfo.SetViewsToResources(srvRegionInfo);
rvlFaceListBuffer.SetViewsToResources(uavFaceListBuffer);
rvlHalfEdgeListBuffer.SetViewsToResources(uavHalfEdgeListBuffer);
rvlBoundaryListBuffer.SetViewsToResources(uavBoundaryListBuffer);
rvlThreadInfoListBuffer.SetViewsToResources(uavThreadInfoListBuffer);
rvlDelaunayStackBuffer.SetViewsToResources(uavDelaunayStackBuffer);
rvlUintStackBuffer.SetViewsToResources(uavUintStackBuffer);
time = TimeStatistics.ClockLap("Load Data");
WriteLine("Load Data:" + time.ToString());
WriteLine("===================================== Size in bytes:");
WriteLine("InputPoints Size = " + InputPoints.Description.SizeInBytes.ToString());
WriteLine("RegionInfo Size = " + RegionInfo.Description.SizeInBytes.ToString());
WriteLine("FaceListBuffer Size = " + FaceListBuffer.Description.SizeInBytes.ToString());
WriteLine("HalfEdgeListBuffer Size = " + HalfEdgeListBuffer.Description.SizeInBytes.ToString());
WriteLine("BoundaryListBuffer Size = " + BoundaryListBuffer.Description.SizeInBytes.ToString());
WriteLine("ThreadInfoListBuffer Size = " + ThreadInfoListBuffer.Description.SizeInBytes.ToString());
WriteLine("DelaunayStackBuffer Size = " + DelaunayStackBuffer.Description.SizeInBytes.ToString());
WriteLine("UintStackBuffer Size = " + UintStackBuffer.Description.SizeInBytes.ToString());
float sum = InputPoints.Description.SizeInBytes
+ RegionInfo.Description.SizeInBytes
+ FaceListBuffer.Description.SizeInBytes
+ HalfEdgeListBuffer.Description.SizeInBytes
+ BoundaryListBuffer.Description.SizeInBytes
+ ThreadInfoListBuffer.Description.SizeInBytes
+ DelaunayStackBuffer.Description.SizeInBytes
+ UintStackBuffer.Description.SizeInBytes;
WriteLine("===================================== Overall size in bytes:" + sum.ToString());
WriteLine("===================================== Overall size in Mbytes:" + (sum / (1024 * 1024)).ToString());
}