void GenerateIfRequired()
{
if (_buffer != null)
{
return;
}
// TODO: To use Immutable resources we would need to delay creation of
// the Buffer until SetData() and recreate them if set more than once.
var accessflags = SharpDX.Direct3D11.CpuAccessFlags.None;
var usage = SharpDX.Direct3D11.ResourceUsage.Default;
if (_isDynamic)
{
accessflags |= SharpDX.Direct3D11.CpuAccessFlags.Write;
usage = SharpDX.Direct3D11.ResourceUsage.Dynamic;
}
_buffer = new SharpDX.Direct3D11.Buffer(GraphicsDevice._d3dDevice,
VertexDeclaration.VertexStride * VertexCount,
usage,
SharpDX.Direct3D11.BindFlags.VertexBuffer,
accessflags,
SharpDX.Direct3D11.ResourceOptionFlags.None,
0 // StructureSizeInBytes
);
_binding = new SharpDX.Direct3D11.VertexBufferBinding(_buffer, VertexDeclaration.VertexStride, 0);
}
private void GenerateIfRequired()
{
if (_buffer != null)
{
return;
}
// TODO: To use true Immutable resources we would need to delay creation of
// the Buffer until SetData() and recreate them if set more than once.
var accessflags = SharpDX.Direct3D11.CpuAccessFlags.None;
var resUsage = SharpDX.Direct3D11.ResourceUsage.Default;
if (IsDynamic)
{
accessflags |= SharpDX.Direct3D11.CpuAccessFlags.Write;
resUsage = SharpDX.Direct3D11.ResourceUsage.Dynamic;
}
_buffer = new SharpDX.Direct3D11.Buffer(
GraphicsDevice._d3dDevice,
Capacity * ElementType.TypeSize(),
resUsage,
SharpDX.Direct3D11.BindFlags.IndexBuffer,
accessflags,
SharpDX.Direct3D11.ResourceOptionFlags.None,
0); // StructureSizeInBytes
}
protected override void Dispose(bool disposing)
{
if (!IsDisposed)
{
#if DIRECTX
if (disposing)
{
if (_buffer != null)
{
_buffer.Dispose();
_buffer = null;
}
}
#elif PSM
//Do nothing
_buffer = null;
#elif !PORTABLE
GraphicsDevice.AddDisposeAction(() =>
{
GL.DeleteBuffers(1, ref ibo);
GraphicsExtensions.CheckGLError();
});
#endif
}
base.Dispose(disposing);
}
protected IndexBuffer(GraphicsDevice graphicsDevice, IndexElementSize indexElementSize, int indexCount, BufferUsage usage, bool dynamic)
{
if (graphicsDevice == null)
{
throw new ArgumentNullException("GraphicsDevice is null");
}
this.GraphicsDevice = graphicsDevice;
this.IndexElementSize = indexElementSize;
this.IndexCount = indexCount;
this.BufferUsage = usage;
_isDynamic = dynamic;
#if DIRECTX
GenerateIfRequired();
#elif PSM
if (indexElementSize != IndexElementSize.SixteenBits)
{
throw new NotImplementedException("PSS Currently only supports ushort (SixteenBits) index elements");
}
_buffer = new ushort[indexCount];
#elif !PORTABLE
Threading.BlockOnUIThread(GenerateIfRequired);
#endif
}
void GenerateIfRequired()
{
if (_buffer != null)
{
return;
}
// TODO: To use true Immutable resources we would need to delay creation of
// the Buffer until SetData() and recreate them if set more than once.
var sizeInBytes = IndexCount * (this.IndexElementSize == IndexElementSize.SixteenBits ? 2 : 4);
var accessflags = SharpDX.Direct3D11.CpuAccessFlags.None;
var resUsage = SharpDX.Direct3D11.ResourceUsage.Default;
if (_isDynamic)
{
accessflags |= SharpDX.Direct3D11.CpuAccessFlags.Write;
resUsage = SharpDX.Direct3D11.ResourceUsage.Dynamic;
}
_buffer = new SharpDX.Direct3D11.Buffer(GraphicsDevice._d3dDevice,
sizeInBytes,
resUsage,
SharpDX.Direct3D11.BindFlags.IndexBuffer,
accessflags,
SharpDX.Direct3D11.ResourceOptionFlags.None,
0 // StructureSizeInBytes
);
}
/// <summary>
/// Initializes a new instance of the <see cref="MeshCache"/> class.
/// </summary>
/// <param name="vertexBuffer">The vertex buffer.</param>
/// <param name="tagGroups">The tag groups.</param>
public MeshCache(DXBuffer vertexBuffer, IEnumerable<TagGroup> tagGroups)
{
_vertexBuffer = vertexBuffer;
_tagGroups = tagGroups;
IsPrelit = false;
_localMatrix = DXMatrix.Identity;
}
/// <summary>
/// Initializes a new instance of the <see cref="MeshCache"/> class.
/// </summary>
/// <param name="vertexBuffer">The vertex buffer.</param>
/// <param name="tagGroups">The tag groups.</param>
/// <param name="localMatrix">The local matrix.</param>
public MeshCache(DXBuffer vertexBuffer, IEnumerable<TagGroup> tagGroups, DXMatrix localMatrix)
{
_vertexBuffer = vertexBuffer;
_tagGroups = tagGroups;
IsPrelit = false;
_localMatrix = localMatrix;
}
protected IndexBuffer(GraphicsDevice graphicsDevice, IndexElementSize indexElementSize, int indexCount, BufferUsage bufferUsage, bool dynamic)
{
if (graphicsDevice == null)
{
throw new ArgumentNullException("Graphics Device Cannot Be Null");
}
this.graphicsDevice = graphicsDevice;
this.IndexElementSize = indexElementSize;
this.IndexCount = indexCount;
this.BufferUsage = bufferUsage;
var sizeInBytes = indexCount * (this.IndexElementSize == IndexElementSize.SixteenBits ? 2 : 4);
_isDynamic = dynamic;
#if DIRECTX
// TODO: To use true Immutable resources we would need to delay creation of
// the Buffer until SetData() and recreate them if set more than once.
var accessflags = SharpDX.Direct3D11.CpuAccessFlags.None;
var usage = SharpDX.Direct3D11.ResourceUsage.Default;
if (dynamic)
{
accessflags |= SharpDX.Direct3D11.CpuAccessFlags.Write;
usage = SharpDX.Direct3D11.ResourceUsage.Dynamic;
}
_buffer = new SharpDX.Direct3D11.Buffer(graphicsDevice._d3dDevice,
sizeInBytes,
usage,
SharpDX.Direct3D11.BindFlags.IndexBuffer,
accessflags,
SharpDX.Direct3D11.ResourceOptionFlags.None,
0 // StructureSizeInBytes
);
#elif PSS
if (indexElementSize != IndexElementSize.SixteenBits)
{
throw new NotImplementedException("PSS Currently only supports ushort (SixteenBits) index elements");
}
_buffer = new ushort[indexCount];
#else
Threading.BlockOnUIThread(() =>
{
#if IPHONE || ANDROID
GL.GenBuffers(1, ref ibo);
#else
GL.GenBuffers(1, out ibo);
#endif
GraphicsExtensions.CheckGLError();
GL.BindBuffer(BufferTarget.ElementArrayBuffer, ibo);
GraphicsExtensions.CheckGLError();
GL.BufferData(BufferTarget.ElementArrayBuffer,
(IntPtr)sizeInBytes, IntPtr.Zero, dynamic ? BufferUsageHint.StreamDraw : BufferUsageHint.StaticDraw);
GraphicsExtensions.CheckGLError();
});
#endif
}
/// <summary>
/// Initializes a new instance of the <see cref="MeshCache"/> class.
/// </summary>
/// <param name="vertexBuffer">The vertex buffer.</param>
/// <param name="tagGroups">The tag groups.</param>
/// <param name="localMatrix">The local matrix.</param>
/// <param name="isPrelit">if set to <c>true</c> [is prelit].</param>
/// <param name="tag">The tag.</param>
public MeshCache(DXBuffer vertexBuffer, IEnumerable<TagGroup> tagGroups, DXMatrix localMatrix, bool isPrelit, int? tag)
{
_vertexBuffer = vertexBuffer;
_tagGroups = tagGroups;
_localMatrix = localMatrix;
IsPrelit = isPrelit;
Tag = tag;
}
private void InitializeTriangle()
{
triangleVertexBuffer = SharpDX.Direct3D11.Buffer.Create <SharpDX.Vector3>(d3dDevice, SharpDX.Direct3D11.BindFlags.VertexBuffer, vertices);
idexBuffer = SharpDX.Direct3D11.Buffer.Create <int>(d3dDevice, SharpDX.Direct3D11.BindFlags.IndexBuffer, indexes);
constBuffer = new SharpDX.Direct3D11.Buffer(d3dDevice, SharpDX.Utilities.SizeOf <SharpDX.Color4>(), SharpDX.Direct3D11.ResourceUsage.Default, SharpDX.Direct3D11.BindFlags.ConstantBuffer, SharpDX.Direct3D11.CpuAccessFlags.None, SharpDX.Direct3D11.ResourceOptionFlags.None, 0);
SharpDX.Color4 color = new SharpDX.Color4(1f, 0f, 1f, 1);
d3dDeviceContext.UpdateSubresource(ref color, constBuffer);
}
private void PlatformGetData <T>(int offsetInBytes, T[] data, int startIndex, int elementCount, int vertexStride) where T : struct
{
GenerateIfRequired();
if (_isDynamic)
{
throw new NotImplementedException();
}
else
{
var deviceContext = GraphicsDevice._d3dContext;
// Copy the buffer to a staging resource
var stagingDesc = _buffer.Description;
stagingDesc.BindFlags = SharpDX.Direct3D11.BindFlags.None;
stagingDesc.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.Read | SharpDX.Direct3D11.CpuAccessFlags.Write;
stagingDesc.Usage = SharpDX.Direct3D11.ResourceUsage.Staging;
stagingDesc.OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None;
using (var stagingBuffer = new SharpDX.Direct3D11.Buffer(GraphicsDevice._d3dDevice, stagingDesc))
{
lock (GraphicsDevice._d3dContext)
deviceContext.CopyResource(_buffer, stagingBuffer);
int TsizeInBytes = SharpDX.Utilities.SizeOf <T>();
var dataHandle = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
var startBytes = startIndex * TsizeInBytes;
var dataPtr = (IntPtr)(dataHandle.AddrOfPinnedObject().ToInt64() + startBytes);
lock (GraphicsDevice._d3dContext)
{
// Map the staging resource to a CPU accessible memory
var box = deviceContext.MapSubresource(stagingBuffer, 0, SharpDX.Direct3D11.MapMode.Read, SharpDX.Direct3D11.MapFlags.None);
if (vertexStride == TsizeInBytes)
{
SharpDX.Utilities.CopyMemory(dataPtr, box.DataPointer + offsetInBytes, vertexStride * elementCount);
}
else
{
for (int i = 0; i < elementCount; i++)
{
SharpDX.Utilities.CopyMemory(dataPtr + i * TsizeInBytes, box.DataPointer + i * vertexStride + offsetInBytes, TsizeInBytes);
}
}
// Make sure that we unmap the resource in case of an exception
deviceContext.UnmapSubresource(stagingBuffer, 0);
}
}
finally
{
dataHandle.Free();
}
}
}
}
private void PlatformInitialize()
{
// Allocate the hardware constant buffer.
var desc = new SharpDX.Direct3D11.BufferDescription();
desc.SizeInBytes = _buffer.Length;
desc.Usage = SharpDX.Direct3D11.ResourceUsage.Default;
desc.BindFlags = SharpDX.Direct3D11.BindFlags.ConstantBuffer;
desc.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None;
lock (GraphicsDevice._d3dContext)
_cbuffer = new SharpDX.Direct3D11.Buffer(GraphicsDevice._d3dDevice, desc);
}
void InitializeP()
{
int N = cc.c.N;
const int INIT_THREAD_GROUPS = 256;
PBuf = gpu.CreateBufferRW((2 + INIT_THREAD_GROUPS) * N, 4, 1); // for betaList[] and affinityFactor[]
cc.c.chacedP = false;
using (var sd = gpu.LoadShader("TsneDx.InitializeP.cso"))
using (var sd3 = gpu.LoadShader("TsneDx.InitializeP3.cso")) {
// Calcualtes the distanceFactor[].
gpu.SetShader(sd3);
cc.c.cmd = 1;
cc.c.groupNumber = 64;
for (int bIdx = 0; bIdx < N; bIdx += cc.c.groupNumber)
{
cc.c.blockIdx = bIdx;
cc.Upload();
gpu.Run(cc.c.groupNumber);
}
cc.c.cmd = 2;
// cc.c.groupNumber, groupMax[0..groupNumber] are the maximal values of matrix sub-section.
cc.Upload();
gpu.Run();
// Calculates the betaList[].
gpu.SetShader(sd3);
cc.c.cmd = 3;
cc.c.groupNumber = INIT_THREAD_GROUPS;
for (int bIdx = 0; bIdx < N; bIdx += cc.c.groupNumber)
{
cc.c.blockIdx = bIdx;
cc.Upload();
gpu.Run(cc.c.groupNumber);
}
// calculates the affinityFactor[]
gpu.SetShader(sd3);
cc.c.cmd = 4;
cc.c.groupNumber = 128; // groupNumber must be smaller than GroupSize as required by next command.
for (int bIdx = 0; bIdx < N; bIdx += cc.c.groupNumber)
{
cc.c.blockIdx = bIdx;
cc.Upload();
gpu.Run(cc.c.groupNumber);
}
gpu.SetShader(sd);
// cc.c.groupNumber must contains the number of partial sumes in groupMax[].
cc.Upload();
gpu.Run();
}
}
private void PlatformInitialize()
{
// Allocate the hardware constant buffer.
var desc = new SharpDX.Direct3D11.BufferDescription();
desc.SizeInBytes = _buffer.Length;
desc.Usage = SharpDX.Direct3D11.ResourceUsage.Default;
desc.BindFlags = SharpDX.Direct3D11.BindFlags.ConstantBuffer;
desc.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None;
lock (GraphicsDevice._d3dContext)
_cbuffer = new SharpDX.Direct3D11.Buffer(GraphicsDevice._d3dDevice, desc);
}
protected VertexBuffer(GraphicsDevice graphicsDevice, VertexDeclaration vertexDeclaration, int vertexCount, BufferUsage bufferUsage, bool dynamic)
{
if (graphicsDevice == null)
{
throw new ArgumentNullException("Graphics Device Cannot Be null");
}
this.GraphicsDevice = graphicsDevice;
this.VertexDeclaration = vertexDeclaration;
this.VertexCount = vertexCount;
this.BufferUsage = bufferUsage;
// Make sure the graphics device is assigned in the vertex declaration.
if (vertexDeclaration.GraphicsDevice != graphicsDevice)
{
vertexDeclaration.GraphicsDevice = graphicsDevice;
}
_isDynamic = dynamic;
#if DIRECTX
// TODO: To use Immutable resources we would need to delay creation of
// the Buffer until SetData() and recreate them if set more than once.
var accessflags = SharpDX.Direct3D11.CpuAccessFlags.None;
var usage = SharpDX.Direct3D11.ResourceUsage.Default;
if (dynamic)
{
accessflags |= SharpDX.Direct3D11.CpuAccessFlags.Write;
usage = SharpDX.Direct3D11.ResourceUsage.Dynamic;
}
_buffer = new SharpDX.Direct3D11.Buffer(graphicsDevice._d3dDevice,
vertexDeclaration.VertexStride * vertexCount,
usage,
SharpDX.Direct3D11.BindFlags.VertexBuffer,
accessflags,
SharpDX.Direct3D11.ResourceOptionFlags.None,
0 // StructureSizeInBytes
);
_binding = new SharpDX.Direct3D11.VertexBufferBinding(_buffer, VertexDeclaration.VertexStride, 0);
#elif PSM
//Do nothing, we cannot create the storage array yet
#else
Threading.BlockOnUIThread(GenerateIfRequired);
#endif
}
void CalculateP()
{
int N = cc.c.N;
distanceBuf = gpu.CreateBufferRW((N * N - N) / 2, 4, 0);
using (var shader = gpu.LoadShader("TsneDx.CreateDistanceCache.cso")) {
gpu.SetShader(shader);
int groupNr = 256;
for (int i = 0; i < N; i += groupNr)
{
cc.c.blockIdx = i;
cc.Upload();
gpu.Run(groupNr);
}
}
PBuf = gpu.CreateBufferRW(N * N, 4, 1);
cc.c.chacedP = true;
using (var sd = gpu.LoadShader("TsneDx.CalculateP.cso")) {
// Calculate the squared distance matrix in to P
using (var sd2 = gpu.LoadShader("TsneDx.CalculatePFromCache.cso")) {
gpu.SetShader(sd2);
gpu.Run(64);
}
gpu.SetShader(sd);
// Normalize and symmetrizing the distance matrix
cc.c.cmd = 4;
cc.Upload();
gpu.Run();
// Convert the matrix to affinities.
cc.c.cmd = 2;
cc.c.groupNumber = 4;
for (int bIdx = 0; bIdx < N; bIdx += cc.c.groupNumber * GpuGroupSize)
{
cc.c.blockIdx = bIdx;
cc.Upload();
gpu.Run(cc.c.groupNumber);
}
// Normalize and symmetrizing the affinity matrix
gpu.SetShader(sd);
cc.c.cmd = 3;
cc.Upload();
gpu.Run();
}
}
void CreatedCachedStagingBuffer()
{
if (_cachedStagingBuffer != null)
{
return;
}
var stagingDesc = _buffer.Description;
stagingDesc.BindFlags = SharpDX.Direct3D11.BindFlags.None;
stagingDesc.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.Read | SharpDX.Direct3D11.CpuAccessFlags.Write;
stagingDesc.Usage = SharpDX.Direct3D11.ResourceUsage.Staging;
stagingDesc.OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None;
_cachedStagingBuffer = new SharpDX.Direct3D11.Buffer(GraphicsDevice._d3dDevice, stagingDesc);
}
/// <summary>
/// Creates device-based resources to store a constant buffer, cube
/// geometry, and vertex and pixel shaders. In some cases this will also
/// store a geometry shader.
/// </summary>
public void CreateDeviceDependentResourcesAsync()
{
ReleaseDeviceDependentResources();
// Create a constant buffer to store the model matrix.
modelConstantBuffer = this.ToDispose(SharpDX.Direct3D11.Buffer.Create(
deviceResources.D3DDevice,
SharpDX.Direct3D11.BindFlags.ConstantBuffer,
ref modelConstantBufferData));
// Create the Texture, ShaderResource and Sampler state
lock (thisLock)
{
m_texture = this.ToDispose(new SharpDX.Direct3D11.Texture2D(deviceResources.D3DDevice, new SharpDX.Direct3D11.Texture2DDescription()
{
Format = SharpDX.DXGI.Format.R8G8B8A8_UNorm,
Width = (int)m_mediaPlayer.PlaybackSession.NaturalVideoWidth, //Width
Height = (int)m_mediaPlayer.PlaybackSession.NaturalVideoHeight, //Height
MipLevels = 1,
ArraySize = 1,
BindFlags = SharpDX.Direct3D11.BindFlags.ShaderResource | SharpDX.Direct3D11.BindFlags.RenderTarget,
Usage = SharpDX.Direct3D11.ResourceUsage.Default,
CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None
}));
m_textureView = this.ToDispose(new SharpDX.Direct3D11.ShaderResourceView(deviceResources.D3DDevice, m_texture));
}
m_quadTextureSamplerState = this.ToDispose(new SharpDX.Direct3D11.SamplerState(deviceResources.D3DDevice, new SharpDX.Direct3D11.SamplerStateDescription()
{
Filter = SharpDX.Direct3D11.Filter.Anisotropic,
AddressU = SharpDX.Direct3D11.TextureAddressMode.Clamp,
AddressV = SharpDX.Direct3D11.TextureAddressMode.Clamp,
AddressW = SharpDX.Direct3D11.TextureAddressMode.Clamp,
MaximumAnisotropy = 3,
MinimumLod = 0,
MaximumLod = 3,
MipLodBias = 0,
BorderColor = new SharpDX.Mathematics.Interop.RawColor4(0, 0, 0, 0),
ComparisonFunction = SharpDX.Direct3D11.Comparison.Never
}));
CreateD3D11Surface();
LoadShaders();
}
public override void Dispose()
{
#if DIRECTX
if (_buffer != null)
{
_buffer.Dispose();
_buffer = null;
}
#elif PSS
//Do nothing
_vertexArray = null;
#else
GL.DeleteBuffers(1, ref vbo);
GraphicsExtensions.CheckGLError();
#endif
base.Dispose();
}
protected IndexBuffer(GraphicsDevice graphicsDevice, IndexElementSize indexElementSize, int indexCount, BufferUsage usage, bool dynamic)
{
if (graphicsDevice == null)
{
throw new ArgumentNullException("GraphicsDevice is null");
}
this.GraphicsDevice = graphicsDevice;
this.IndexElementSize = indexElementSize;
this.IndexCount = indexCount;
this.BufferUsage = usage;
var sizeInBytes = indexCount * (this.IndexElementSize == IndexElementSize.SixteenBits ? 2 : 4);
_isDynamic = dynamic;
#if DIRECTX
// TODO: To use true Immutable resources we would need to delay creation of
// the Buffer until SetData() and recreate them if set more than once.
var accessflags = SharpDX.Direct3D11.CpuAccessFlags.None;
var resUsage = SharpDX.Direct3D11.ResourceUsage.Default;
if (dynamic)
{
accessflags |= SharpDX.Direct3D11.CpuAccessFlags.Write;
resUsage = SharpDX.Direct3D11.ResourceUsage.Dynamic;
}
_buffer = new SharpDX.Direct3D11.Buffer(graphicsDevice._d3dDevice,
sizeInBytes,
resUsage,
SharpDX.Direct3D11.BindFlags.IndexBuffer,
accessflags,
SharpDX.Direct3D11.ResourceOptionFlags.None,
0 // StructureSizeInBytes
);
#elif PSM
if (indexElementSize != IndexElementSize.SixteenBits)
{
throw new NotImplementedException("PSS Currently only supports ushort (SixteenBits) index elements");
}
_buffer = new ushort[indexCount];
#else
Threading.BlockOnUIThread(GenerateIfRequired);
#endif
}
private unsafe void PlatformGetData(int byteOffset, Span <byte> destination)
{
if (_buffer == null)
{
return;
}
if (IsDynamic)
{
throw new NotImplementedException();
}
// Copy the texture to a staging resource
var stagingDesc = _buffer.Description;
stagingDesc.BindFlags = SharpDX.Direct3D11.BindFlags.None;
stagingDesc.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.Read | SharpDX.Direct3D11.CpuAccessFlags.Write;
stagingDesc.Usage = SharpDX.Direct3D11.ResourceUsage.Staging;
stagingDesc.OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None;
using (var stagingBuffer = new SharpDX.Direct3D11.Buffer(GraphicsDevice._d3dDevice, stagingDesc))
{
var deviceContext = GraphicsDevice._d3dContext;
lock (deviceContext)
{
deviceContext.CopyResource(_buffer, stagingBuffer);
// Map the staging resource to CPU accessible memory
try
{
var box = deviceContext.MapSubresource(
stagingBuffer, 0, SharpDX.Direct3D11.MapMode.Read, SharpDX.Direct3D11.MapFlags.None);
int srcBytes = Count * ElementType.TypeSize();
var byteSrc = new ReadOnlySpan <byte>((void *)(box.DataPointer + byteOffset), srcBytes);
byteSrc.Slice(0, destination.Length).CopyTo(destination);
}
finally
{
// Make sure that we unmap the resource in case of an exception
deviceContext.UnmapSubresource(stagingBuffer, 0);
}
}
}
}
public GpuBufferArray(
int elementSize,
int elementCount,
GpuDevice device,
GpuResourceInfo resourceInfo) : base(device, elementCount * elementSize, resourceInfo)
{
ElementSize = elementSize;
ElementCount = elementCount;
mResource = new SharpDX.Direct3D11.Buffer(GpuDevice.Device,
new SharpDX.Direct3D11.BufferDescription()
{
BindFlags = GpuConvert.ToBindUsage(ResourceInfo.BindUsage),
CpuAccessFlags = GpuConvert.ToCpuAccessFlag(ResourceInfo.CpuAccessFlag),
OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.BufferStructured,
SizeInBytes = SizeInBytes,
StructureByteStride = ElementSize,
Usage = GpuConvert.ToHeapType(ResourceInfo.HeapType)
});
}
private void Initialize()
{
#if DIRECTX
// Allocate the hardware constant buffer.
var desc = new SharpDX.Direct3D11.BufferDescription();
desc.SizeInBytes = _buffer.Length;
desc.Usage = SharpDX.Direct3D11.ResourceUsage.Default;
desc.BindFlags = SharpDX.Direct3D11.BindFlags.ConstantBuffer;
desc.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None;
_cbuffer = new SharpDX.Direct3D11.Buffer(graphicsDevice._d3dDevice, desc);
#elif OPENGL
var data = new byte[_parameters.Length];
for (var i = 0; i < _parameters.Length; i++)
{
data[i] = (byte)(_parameters[i] | _offsets[i]);
}
HashKey = MonoGame.Utilities.Hash.ComputeHash(data);
#endif
}
public GpuBuffer(
int bufferSize,
int elementSize,
GpuDevice device,
GpuResourceInfo resourceInfo) : base(device, bufferSize, resourceInfo)
{
ElementSize = elementSize;
mResource = new SharpDX.Direct3D11.Buffer(GpuDevice.Device,
new SharpDX.Direct3D11.BufferDescription()
{
BindFlags = GpuConvert.ToBindUsage(ResourceInfo.BindUsage),
CpuAccessFlags = GpuConvert.ToCpuAccessFlag(ResourceInfo.CpuAccessFlag),
OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None,
SizeInBytes = SizeInBytes,
StructureByteStride = ElementSize,
Usage = GpuConvert.ToHeapType(ResourceInfo.HeapType)
});
Debug.Assert(bufferSize % elementSize == 0);
}
public static void RenderQuadTree2(SharpDevice device, SharpShader shader, SharpDX.Direct3D11.Buffer buffer, Matrix viewProjection)
{
if (secondQuadTreeMesh == null)
{
return;
}
secondQuadtreeRenderData.worldViewProjection = quadTreeTranslation * viewProjection;
device.SetFillModeSolid();
device.SetCullModeNone();
device.SetDefaultBlendState();
device.ApplyRasterState();
device.UpdateAllStates();
device.UpdateData(buffer, secondQuadtreeRenderData);
device.DeviceContext.VertexShader.SetConstantBuffer(0, buffer);
shader.Apply();
secondQuadTreeMesh.Draw();
}
public async void CreateDeviceDependentResourcesAsync()
{
ReleaseDeviceDependentResources();
var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
var vertexShaderFilename = @"Content\Shaders\Camera Testing\VprtVertexShader.cso";
var vertexShaderBytecode = await DirectXHelper.ReadDataAsync(await folder.GetFileAsync(vertexShaderFilename));
vertexShader = ToDispose(new SharpDX.Direct3D11.VertexShader(deviceResources.D3DDevice, vertexShaderBytecode));
SharpDX.Direct3D11.InputElement[] vertexDescription =
{
new SharpDX.Direct3D11.InputElement("POSITION", 0, SharpDX.DXGI.Format.R32G32B32_Float, 0, 0, SharpDX.Direct3D11.InputClassification.PerVertexData, 0),
new SharpDX.Direct3D11.InputElement("TEXCOORD", 0, SharpDX.DXGI.Format.R32G32_Float, 12, 0, SharpDX.Direct3D11.InputClassification.PerVertexData, 0)
};
inputLayout = ToDispose(new SharpDX.Direct3D11.InputLayout(deviceResources.D3DDevice, vertexShaderBytecode, vertexDescription));
var pixelShaderBytecode = await DirectXHelper.ReadDataAsync(await folder.GetFileAsync(@"Content\Shaders\Camera Testing\PixelShader.cso"));
pixelShader = ToDispose(new SharpDX.Direct3D11.PixelShader(deviceResources.D3DDevice, pixelShaderBytecode));
VertexPositionUV[] vertices =
{
new VertexPositionUV(new Vector3(-0.2f, -0.2f, 0.0f), new Vector2(0.0f, 0.0f)),
new VertexPositionUV(new Vector3(0.2f, -0.2f, 0.0f), new Vector2(1.0f, 0.0f)),
new VertexPositionUV(new Vector3(0.2f, 0.2f, 0.0f), new Vector2(1.0f, 1.0f)),
new VertexPositionUV(new Vector3(-0.2f, 0.2f, 0.0f), new Vector2(0.0f, 1.0f))
};
vertexBuffer = ToDispose(SharpDX.Direct3D11.Buffer.Create(deviceResources.D3DDevice, SharpDX.Direct3D11.BindFlags.VertexBuffer, vertices));
ushort[] indices = { 0, 1, 2, 2, 3, 0 };
indexBuffer = ToDispose(SharpDX.Direct3D11.Buffer.Create(deviceResources.D3DDevice, SharpDX.Direct3D11.BindFlags.IndexBuffer, indices));
modelConstantBuffer = ToDispose(SharpDX.Direct3D11.Buffer.Create(deviceResources.D3DDevice, SharpDX.Direct3D11.BindFlags.ConstantBuffer, ref modelConstantBufferData));
loadingFinished = true;
}
/// <summary>
/// Creates device-based resources to store a constant buffer, cube
/// geometry, and vertex and pixel shaders. In some cases this will also
/// store a geometry shader.
/// </summary>
public async void CreateDeviceDependentResourcesAsync()
{
ReleaseDeviceDependentResources();
usingVprtShaders = deviceResources.D3DDeviceSupportsVprt;
var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
// On devices that do support the D3D11_FEATURE_D3D11_OPTIONS3::
// VPAndRTArrayIndexFromAnyShaderFeedingRasterizer optional feature
// we can avoid using a pass-through geometry shader to set the render
// target array index, thus avoiding any overhead that would be
// incurred by setting the geometry shader stage.
var vertexShaderFileName = usingVprtShaders ? "Content\\Shaders\\VPRTVertexShader.cso" : "Content\\Shaders\\VertexShader.cso";
// Load the compiled vertex shader.
var vertexShaderByteCode = await DirectXHelper.ReadDataAsync(await folder.GetFileAsync(vertexShaderFileName));
// After the vertex shader file is loaded, create the shader and input layout.
vertexShader = this.ToDispose(new SharpDX.Direct3D11.VertexShader(
deviceResources.D3DDevice,
vertexShaderByteCode));
SharpDX.Direct3D11.InputElement[] vertexDesc =
{
new SharpDX.Direct3D11.InputElement("POSITION", 0, SharpDX.DXGI.Format.R32G32B32_Float, 0, 0, SharpDX.Direct3D11.InputClassification.PerVertexData, 0),
new SharpDX.Direct3D11.InputElement("COLOR", 0, SharpDX.DXGI.Format.R32G32B32_Float, 12, 0, SharpDX.Direct3D11.InputClassification.PerVertexData, 0),
};
inputLayout = this.ToDispose(new SharpDX.Direct3D11.InputLayout(
deviceResources.D3DDevice,
vertexShaderByteCode,
vertexDesc));
if (!usingVprtShaders)
{
// Load the compiled pass-through geometry shader.
var geometryShaderByteCode = await DirectXHelper.ReadDataAsync(await folder.GetFileAsync("Content\\Shaders\\GeometryShader.cso"));
// After the pass-through geometry shader file is loaded, create the shader.
geometryShader = this.ToDispose(new SharpDX.Direct3D11.GeometryShader(
deviceResources.D3DDevice,
geometryShaderByteCode));
}
// Load the compiled pixel shader.
var pixelShaderByteCode = await DirectXHelper.ReadDataAsync(await folder.GetFileAsync("Content\\Shaders\\PixelShader.cso"));
// After the pixel shader file is loaded, create the shader.
pixelShader = this.ToDispose(new SharpDX.Direct3D11.PixelShader(
deviceResources.D3DDevice,
pixelShaderByteCode));
// Load mesh vertices. Each vertex has a position and a color.
// Note that the cube size has changed from the default DirectX app
// template. Windows Holographic is scaled in meters, so to draw the
// cube at a comfortable size we made the cube width 0.2 m (20 cm).
VertexPositionColor[] cubeVertices =
{
new VertexPositionColor(new Vector3(-0.1f, -0.1f, -0.1f), new Vector3(0.0f, 0.0f, 0.0f)),
new VertexPositionColor(new Vector3(-0.1f, -0.1f, 0.1f), new Vector3(0.0f, 0.0f, 1.0f)),
new VertexPositionColor(new Vector3(-0.1f, 0.1f, -0.1f), new Vector3(0.0f, 1.0f, 0.0f)),
new VertexPositionColor(new Vector3(-0.1f, 0.1f, 0.1f), new Vector3(0.0f, 1.0f, 1.0f)),
new VertexPositionColor(new Vector3(0.1f, -0.1f, -0.1f), new Vector3(1.0f, 0.0f, 0.0f)),
new VertexPositionColor(new Vector3(0.1f, -0.1f, 0.1f), new Vector3(1.0f, 0.0f, 1.0f)),
new VertexPositionColor(new Vector3(0.1f, 0.1f, -0.1f), new Vector3(1.0f, 1.0f, 0.0f)),
new VertexPositionColor(new Vector3(0.1f, 0.1f, 0.1f), new Vector3(1.0f, 1.0f, 1.0f)),
};
vertexBuffer = this.ToDispose(SharpDX.Direct3D11.Buffer.Create(
deviceResources.D3DDevice,
SharpDX.Direct3D11.BindFlags.VertexBuffer,
cubeVertices));
// Load mesh indices. Each trio of indices represents
// a triangle to be rendered on the screen.
// For example: 0,2,1 means that the vertices with indexes
// 0, 2 and 1 from the vertex buffer compose the
// first triangle of this mesh.
ushort[] cubeIndices =
{
2, 1, 0, // -x
2, 3, 1,
6, 4, 5, // +x
6, 5, 7,
0, 1, 5, // -y
0, 5, 4,
2, 6, 7, // +y
2, 7, 3,
0, 4, 6, // -z
0, 6, 2,
1, 3, 7, // +z
1, 7, 5,
};
indexCount = cubeIndices.Length;
indexBuffer = this.ToDispose(SharpDX.Direct3D11.Buffer.Create(
deviceResources.D3DDevice,
SharpDX.Direct3D11.BindFlags.IndexBuffer,
cubeIndices));
// Create a constant buffer to store the model matrix.
modelConstantBuffer = this.ToDispose(SharpDX.Direct3D11.Buffer.Create(
deviceResources.D3DDevice,
SharpDX.Direct3D11.BindFlags.ConstantBuffer,
ref modelConstantBufferData));
// Once the cube is loaded, the object is ready to be rendered.
loadingComplete = true;
}
protected VertexBuffer(GraphicsDevice graphicsDevice, VertexDeclaration vertexDeclaration, int vertexCount, BufferUsage bufferUsage, bool dynamic)
{
if (graphicsDevice == null)
{
throw new ArgumentNullException("Graphics Device Cannot Be null");
}
this.graphicsDevice = graphicsDevice;
this.VertexDeclaration = vertexDeclaration;
this.VertexCount = vertexCount;
this.BufferUsage = bufferUsage;
// Make sure the graphics device is assigned in the vertex declaration.
if (vertexDeclaration.GraphicsDevice != graphicsDevice)
{
vertexDeclaration.GraphicsDevice = graphicsDevice;
}
_isDynamic = dynamic;
#if DIRECTX
// TODO: To use Immutable resources we would need to delay creation of
// the Buffer until SetData() and recreate them if set more than once.
var accessflags = SharpDX.Direct3D11.CpuAccessFlags.None;
var usage = SharpDX.Direct3D11.ResourceUsage.Default;
if (dynamic)
{
accessflags |= SharpDX.Direct3D11.CpuAccessFlags.Write;
usage = SharpDX.Direct3D11.ResourceUsage.Dynamic;
}
_buffer = new SharpDX.Direct3D11.Buffer(graphicsDevice._d3dDevice,
vertexDeclaration.VertexStride * vertexCount,
usage,
SharpDX.Direct3D11.BindFlags.VertexBuffer,
accessflags,
SharpDX.Direct3D11.ResourceOptionFlags.None,
0 // StructureSizeInBytes
);
_binding = new SharpDX.Direct3D11.VertexBufferBinding(_buffer, VertexDeclaration.VertexStride, 0);
#elif PSS
//Do nothing, we cannot create the storage array yet
#else
Threading.BlockOnUIThread(() =>
{
//GLExt.Oes.GenVertexArrays(1, out this.vao);
//GLExt.Oes.BindVertexArray(this.vao);
#if IPHONE || ANDROID
GL.GenBuffers(1, ref this.vbo);
#else
GL.GenBuffers(1, out this.vbo);
#endif
GraphicsExtensions.CheckGLError();
GL.BindBuffer(BufferTarget.ArrayBuffer, this.vbo);
GraphicsExtensions.CheckGLError();
GL.BufferData(BufferTarget.ArrayBuffer,
new IntPtr(vertexDeclaration.VertexStride * vertexCount), IntPtr.Zero,
dynamic ? BufferUsageHint.StreamDraw : BufferUsageHint.StaticDraw);
GraphicsExtensions.CheckGLError();
});
#endif
}
public SkyboxRenderer(Device device)
{
this.device = device;
bufferVs1 = device.CreateBuffer <VsData>();
shader = new Shader(device, "../../Skybox.hlsl", vertexEntry: "VS", pixelEntry: "PS");
}
private void Initialize()
{
#if DIRECTX
// Allocate the hardware constant buffer.
var desc = new SharpDX.Direct3D11.BufferDescription();
desc.SizeInBytes = _buffer.Length;
desc.Usage = SharpDX.Direct3D11.ResourceUsage.Default;
desc.BindFlags = SharpDX.Direct3D11.BindFlags.ConstantBuffer;
desc.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None;
lock (GraphicsDevice._d3dContext)
_cbuffer = new SharpDX.Direct3D11.Buffer(GraphicsDevice._d3dDevice, desc);
#elif OPENGL
var data = new byte[_parameters.Length];
for (var i = 0; i < _parameters.Length; i++)
{
data[i] = (byte)(_parameters[i] | _offsets[i]);
}
HashKey = MonoGame.Utilities.Hash.ComputeHash(data);
#endif
}
internal MeshDrawable(DXBuffer vertexBuffer, IEnumerable<TagGroup> tagGroups)
{
WorldMatrix = Matrix.Identity;
VertexBuffer = vertexBuffer;
TagGroups.AddRange(tagGroups.Select(tagGroup => new WeakReference<TagGroup>(tagGroup)));
}
/// <summary>
/// Creates device-based resources to store a constant buffer, cube
/// geometry, and vertex and pixel shaders. In some cases this will also
/// store a geometry shader.
/// </summary>
public async void CreateDeviceDependentResourcesAsync()
{
ReleaseDeviceDependentResources();
usingVprtShaders = deviceResources.D3DDeviceSupportsVprt;
var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
// On devices that do support the D3D11_FEATURE_D3D11_OPTIONS3::
// VPAndRTArrayIndexFromAnyShaderFeedingRasterizer optional feature
// we can avoid using a pass-through geometry shader to set the render
// target array index, thus avoiding any overhead that would be
// incurred by setting the geometry shader stage.
var vertexShaderFileName = usingVprtShaders ? "Content\\Shaders\\VPRTVertexShader.cso" : "Content\\Shaders\\VertexShader.cso";
// Load the compiled vertex shader.
var vertexShaderByteCode = await DirectXHelper.ReadDataAsync(await folder.GetFileAsync(vertexShaderFileName));
// After the vertex shader file is loaded, create the shader and input layout.
vertexShader = this.ToDispose(new SharpDX.Direct3D11.VertexShader(
deviceResources.D3DDevice,
vertexShaderByteCode));
//TODO: Change VertexDesc to use new structure: VertexPositionTextureCoordinates
SharpDX.Direct3D11.InputElement[] vertexDesc =
{
new SharpDX.Direct3D11.InputElement("POSITION", 0, SharpDX.DXGI.Format.R32G32B32_Float, 0, 0, SharpDX.Direct3D11.InputClassification.PerVertexData, 0),
new SharpDX.Direct3D11.InputElement("TEXCOORD", 0, SharpDX.DXGI.Format.R32G32B32_Float, 12, 0, SharpDX.Direct3D11.InputClassification.PerVertexData, 0),
};
inputLayout = this.ToDispose(new SharpDX.Direct3D11.InputLayout(
deviceResources.D3DDevice,
vertexShaderByteCode,
vertexDesc));
if (!usingVprtShaders)
{
// Load the compiled pass-through geometry shader.
var geometryShaderByteCode = await DirectXHelper.ReadDataAsync(await folder.GetFileAsync("Content\\Shaders\\GeometryShader.cso"));
// After the pass-through geometry shader file is loaded, create the shader.
geometryShader = this.ToDispose(new SharpDX.Direct3D11.GeometryShader(
deviceResources.D3DDevice,
geometryShaderByteCode));
}
// Load the compiled pixel shader.
var pixelShaderByteCode = await DirectXHelper.ReadDataAsync(await folder.GetFileAsync("Content\\Shaders\\PixelShader.cso"));
// After the pixel shader file is loaded, create the shader.
pixelShader = this.ToDispose(new SharpDX.Direct3D11.PixelShader(
deviceResources.D3DDevice,
pixelShaderByteCode));
//TODO: Use a photo editing app to create a texture, like GIMP2 with DDS Plugin, make sure photo width & height divisible by 4, for a cube must be an exact square
//used Gimp 2 with DDS Plugin to create a 2000x2000 image and export at .dds file.
//in the export options I used BC3_UNorm format, along with automatic MIP levels
string textureName2 = "Content\\Textures\\nuwaupian_holding_fire3.dds";
//TODO: Create the SamplerState
var samplerStateDescription = new SharpDX.Direct3D11.SamplerStateDescription();
samplerStateDescription.Filter = SharpDX.Direct3D11.Filter.MinMagMipLinear;
samplerStateDescription.AddressU = SharpDX.Direct3D11.TextureAddressMode.Wrap;
samplerStateDescription.AddressV = SharpDX.Direct3D11.TextureAddressMode.Wrap;
samplerStateDescription.AddressW = SharpDX.Direct3D11.TextureAddressMode.Wrap;
samplerStateDescription.BorderColor = new SharpDX.Mathematics.Interop.RawColor4(0f, 0f, 0f, 1f);
samplerState = new SharpDX.Direct3D11.SamplerState(deviceResources.D3DDevice, samplerStateDescription);
//TODO: Use the TextureLoader class to create a bitmap source from a .DDS texture file
//Retreived TextureLoader from DirectXTK or DirectText Tool
var bitmapSource2 = TextureLoader.LoadBitmap(new SharpDX.WIC.ImagingFactory2(), textureName2);
//TODO: Create a Texture Description to describe the texture you'll be using or converting to
var textDesc = new SharpDX.Direct3D11.Texture2DDescription()
{
Width = bitmapSource2.Size.Width,
Height = bitmapSource2.Size.Height,
ArraySize = 6,
BindFlags = SharpDX.Direct3D11.BindFlags.ShaderResource,
Usage = SharpDX.Direct3D11.ResourceUsage.Default,
CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None,
Format = SharpDX.DXGI.Format.R8G8B8A8_UNorm,
MipLevels = 1,
OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.TextureCube,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
};
//TODO: Create Shader Resource View
var shaderResourceDesc = new SharpDX.Direct3D11.ShaderResourceViewDescription()
{
Format = textDesc.Format,
Dimension = SharpDX.Direct3D.ShaderResourceViewDimension.TextureCube,
TextureCube = new SharpDX.Direct3D11.ShaderResourceViewDescription.TextureCubeResource()
{
MipLevels = textDesc.MipLevels, MostDetailedMip = 0
}
};
//TODO: Create 6 pointers for the 6 sides of the cube, each pointing to an 2000x2000 image you want to display
IntPtr[] ptrImages = new IntPtr[6];
//TODO: Get the Stride of each image - stride is the size of 1 row pixels
int stride = bitmapSource2.Size.Width * 4;
//TODO: for each of the 6 pointers, create a buffer to hold the pixels using the DataStream object,
using (var buffer = new SharpDX.DataStream(bitmapSource2.Size.Height * stride, true, true))
{
//TODO: for each of the 6 data streams, copy the pixels into a buffer
// Copy the content of the WIC to the buffer
bitmapSource2.CopyPixels(stride, buffer);
//TODO: for each of the 6 pointers get the IntPtr to the buffers, taking care not get rid of the buffers, pointers, or datastreams before we can create the texture cube
ptrImages[0] = buffer.DataPointer;
using (var buffer1 = new SharpDX.DataStream(bitmapSource2.Size.Height * stride, true, true))
{
// Copy the content of the WIC to the buffer
bitmapSource2.CopyPixels(stride, buffer1);
ptrImages[1] = buffer1.DataPointer;
using (var buffer2 = new SharpDX.DataStream(bitmapSource2.Size.Height * stride, true, true))
{
// Copy the content of the WIC to the buffer
bitmapSource2.CopyPixels(stride, buffer2);
ptrImages[2] = buffer2.DataPointer;
using (var buffer3 = new SharpDX.DataStream(bitmapSource2.Size.Height * stride, true, true))
{
// Copy the content of the WIC to the buffer
bitmapSource2.CopyPixels(stride, buffer3);
ptrImages[3] = buffer3.DataPointer;
using (var buffer4 = new SharpDX.DataStream(bitmapSource2.Size.Height * stride, true, true))
{
// Copy the content of the WIC to the buffer
bitmapSource2.CopyPixels(stride, buffer4);
ptrImages[4] = buffer4.DataPointer;
using (var buffer5 = new SharpDX.DataStream(bitmapSource2.Size.Height * stride, true, true))
{
// Copy the content of the WIC to the buffer
bitmapSource2.CopyPixels(stride, buffer5);
ptrImages[5] = buffer5.DataPointer;
//TODO: create a DataBox of the 6 pixel buffers. The DataBox is the typed array which we described in the TextureDescription and ShaderResource Description to hold the 6 sides
var dataRects = new SharpDX.DataBox[] { new SharpDX.DataBox(ptrImages[0], stride, 0),
new SharpDX.DataBox(ptrImages[1], stride, 0),
new SharpDX.DataBox(ptrImages[2], stride, 0),
new SharpDX.DataBox(ptrImages[3], stride, 0),
new SharpDX.DataBox(ptrImages[4], stride, 0),
new SharpDX.DataBox(ptrImages[5], stride, 0) };
//TODO: Now create the TextureCube
var texture2D = new SharpDX.Direct3D11.Texture2D(deviceResources.D3DDevice, textDesc, dataRects);
//TODO: Now create the TextureShaderResourceView - which will be used in the PixelShader, after this point we can release all the buffers
textureResource = new SharpDX.Direct3D11.ShaderResourceView(deviceResources.D3DDevice, texture2D, shaderResourceDesc);
}
}
}
}
}
}
//TODO: Change to VertexPositionCoordinate
// Load mesh vertices. Each vertex has a position and a color.
// Note that the cube size has changed from the default DirectX app
// template. Windows Holographic is scaled in meters, so to draw the
// cube at a comfortable size we made the cube width 0.2 m (20 cm).
VertexPositionCoordinate[] cubeVertices =
{
new VertexPositionCoordinate(new Vector3(-0.1f, -0.1f, -0.1f), new Vector3(0.0f, 0.0f, 0.0f)),
new VertexPositionCoordinate(new Vector3(-0.1f, -0.1f, 0.1f), new Vector3(0.0f, 0.0f, 1.0f)),
new VertexPositionCoordinate(new Vector3(-0.1f, 0.1f, -0.1f), new Vector3(0.0f, 1.0f, 0.0f)),
new VertexPositionCoordinate(new Vector3(-0.1f, 0.1f, 0.1f), new Vector3(0.0f, 1.0f, 1.0f)),
new VertexPositionCoordinate(new Vector3(0.1f, -0.1f, -0.1f), new Vector3(1.0f, 0.0f, 0.0f)),
new VertexPositionCoordinate(new Vector3(0.1f, -0.1f, 0.1f), new Vector3(1.0f, 0.0f, 1.0f)),
new VertexPositionCoordinate(new Vector3(0.1f, 0.1f, -0.1f), new Vector3(1.0f, 1.0f, 0.0f)),
new VertexPositionCoordinate(new Vector3(0.1f, 0.1f, 0.1f), new Vector3(1.0f, 1.0f, 1.0f)),
};
vertexBuffer = this.ToDispose(SharpDX.Direct3D11.Buffer.Create(
deviceResources.D3DDevice,
SharpDX.Direct3D11.BindFlags.VertexBuffer,
cubeVertices));
// Load mesh indices. Each trio of indices represents
// a triangle to be rendered on the screen.
// For example: 0,2,1 means that the vertices with indexes
// 0, 2 and 1 from the vertex buffer compose the
// first triangle of this mesh.
ushort[] cubeIndices =
{
2, 1, 0, // -x
2, 3, 1,
6, 4, 5, // +x
6, 5, 7,
0, 1, 5, // -y
0, 5, 4,
2, 6, 7, // +y
2, 7, 3,
0, 4, 6, // -z
0, 6, 2,
1, 3, 7, // +z
1, 7, 5,
};
indexCount = cubeIndices.Length;
indexBuffer = this.ToDispose(SharpDX.Direct3D11.Buffer.Create(
deviceResources.D3DDevice,
SharpDX.Direct3D11.BindFlags.IndexBuffer,
cubeIndices));
// Create a constant buffer to store the model matrix.
modelConstantBuffer = this.ToDispose(SharpDX.Direct3D11.Buffer.Create(
deviceResources.D3DDevice,
SharpDX.Direct3D11.BindFlags.ConstantBuffer,
ref modelConstantBufferData));
// Once the cube is loaded, the object is ready to be rendered.
loadingComplete = true;
}
private void ComputeSphere(int tessellation, bool invertn)
{
if (tessellation < 3)
{
new Exception("tesselation parameter out of range");
}
int verticalSegments = tessellation;
int horizontalSegments = tessellation * 2;
int vertCount = (verticalSegments + 1) * (horizontalSegments + 1);
int idxCount = (verticalSegments) * (horizontalSegments + 1) * 6;
float radius = 0.5f; // Diameter of the default Sphere will always be 1 to stay aligned
VertexPositionTexture[] sphereVertArray = new VertexPositionTexture[vertCount];
int[] cubeIndices = new int[idxCount];
int writePos = 0;
for (int i = 0; i <= verticalSegments; i++)
{
float v = 1 - (float)i / verticalSegments;
float latitude = (float)(i * SharpDX.MathUtil.Pi /
verticalSegments) - SharpDX.MathUtil.PiOverTwo;
var dy = (float)Math.Sin(latitude);
var dxz = (float)Math.Cos(latitude);
// Create a single ring of vertices at this latitude.
for (ushort j = 0; j <= horizontalSegments; j++)
{
float u = (float)j / horizontalSegments;
float longitude = (float)(j * SharpDX.MathUtil.TwoPi / horizontalSegments);
float dx = (float)Math.Cos(longitude);
float dz = (float)Math.Sin(longitude);
dx *= dxz;
dz *= dxz;
Vector3 vect3 = new Vector3(dx, dy, dz);
VertexPositionTexture vert;
vert.pos = vect3 * radius;
vert.texture = new Vector2(u, v);
sphereVertArray[writePos] = vert;
writePos++;
}
}
// Fill the index buffer with triangles joining each pair of latitude rings.
int stride = horizontalSegments + 1;
writePos = 0;
for (int i = 0; i < verticalSegments; i++)
{
for (int j = 0; j <= horizontalSegments; j++)
{
int nextI = i + 1;
int nextJ = (j + 1) % stride;
cubeIndices[writePos] = i * stride + j;
cubeIndices[++writePos] = nextI * stride + j;
cubeIndices[++writePos] = i * stride + nextJ;
cubeIndices[++writePos] = i * stride + nextJ;
cubeIndices[++writePos] = nextI * stride + j;
cubeIndices[++writePos] = nextI * stride + nextJ;
writePos++;
}
}
vertexBuffer = this.ToDispose(SharpDX.Direct3D11.Buffer.Create(
deviceResources.D3DDevice,
SharpDX.Direct3D11.BindFlags.VertexBuffer,
sphereVertArray));
indexCount = idxCount;
indexBuffer = this.ToDispose(SharpDX.Direct3D11.Buffer.Create(
deviceResources.D3DDevice,
SharpDX.Direct3D11.BindFlags.IndexBuffer,
cubeIndices));
}
public void MakeSphere(SharpDX.Direct3D11.Device d3dDevice)
{
// Layout from VertexShader input signature
texture = Texture11.FromFile(d3dDevice, "earthMap.jpg");
uint[] indexes = new uint[subDivisionsX * subDivisionsY * 6];
float[] verts = new float[((subDivisionsX + 1) * (subDivisionsY + 1)) * 6];
double lat, lng;
uint index = 0;
double latMin = 90;
double latMax = -90;
double lngMin = -180;
double lngMax = 180;
uint x1, y1;
double latDegrees = latMax - latMin;
double lngDegrees = lngMax - lngMin;
double textureStepX = 1.0f / subDivisionsX;
double textureStepY = 1.0f / subDivisionsY;
for (y1 = 0; y1 <= subDivisionsY; y1++)
{
if (y1 != subDivisionsY)
{
lat = latMax - (textureStepY * latDegrees * (double)y1);
}
else
{
lat = latMin;
}
for (x1 = 0; x1 <= subDivisionsX; x1++)
{
if (x1 != subDivisionsX)
{
lng = lngMin + (textureStepX * lngDegrees * (double)x1);
}
else
{
lng = lngMax;
}
index = (y1 * (subDivisionsX + 1) + x1) * 6;
GeoTo3d(verts, (int)index, lat, lng);
}
}
triangleCount = (subDivisionsX) * (subDivisionsY) * 2;
for (y1 = 0; y1 < subDivisionsY; y1++)
{
for (x1 = 0; x1 < subDivisionsX; x1++)
{
index = (y1 * subDivisionsX * 6) + 6 * x1;
// First triangle in quad
indexes[index] = (y1 * (subDivisionsX + 1) + x1);
indexes[index + 1] = ((y1 + 1) * (subDivisionsX + 1) + x1);
indexes[index + 2] = (y1 * (subDivisionsX + 1) + (x1 + 1));
// Second triangle in quad
indexes[index + 3] = (y1 * (subDivisionsX + 1) + (x1 + 1));
indexes[index + 4] = ((y1 + 1) * (subDivisionsX + 1) + x1);
indexes[index + 5] = ((y1 + 1) * (subDivisionsX + 1) + (x1 + 1));
}
}
vertices = SharpDX.Direct3D11.Buffer.Create(d3dDevice, SharpDX.Direct3D11.BindFlags.VertexBuffer, verts);
vertexBufferBinding = new SharpDX.Direct3D11.VertexBufferBinding(vertices, sizeof(float) * 6, 0);
indexBuffer = SharpDX.Direct3D11.Buffer.Create(d3dDevice, SharpDX.Direct3D11.BindFlags.IndexBuffer, indexes);
}
private void PlatformSetDataInternal <T>(int offsetInBytes, T[] data, int startIndex, int elementCount, int vertexStride, SetDataOptions options, int bufferSize, int elementSizeInBytes) where T : struct
{
GenerateIfRequired();
if (_isDynamic)
{
// We assume discard by default.
var mode = SharpDX.Direct3D11.MapMode.WriteDiscard;
if ((options & SetDataOptions.NoOverwrite) == SetDataOptions.NoOverwrite)
{
mode = SharpDX.Direct3D11.MapMode.WriteNoOverwrite;
}
var d3dContext = GraphicsDevice._d3dContext;
lock (d3dContext)
{
var dataBox = d3dContext.MapSubresource(_buffer, 0, mode, SharpDX.Direct3D11.MapFlags.None);
if (vertexStride == elementSizeInBytes)
{
SharpDX.Utilities.Write(dataBox.DataPointer + offsetInBytes, data, startIndex, elementCount);
}
else
{
for (int i = 0; i < elementCount; i++)
{
SharpDX.Utilities.Write(dataBox.DataPointer + offsetInBytes + i * vertexStride, data, startIndex + i, 1);
}
}
d3dContext.UnmapSubresource(_buffer, 0);
}
}
else
{
var dataHandle = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
var startBytes = startIndex * elementSizeInBytes;
var dataPtr = (IntPtr)(dataHandle.AddrOfPinnedObject().ToInt64() + startBytes);
var d3dContext = GraphicsDevice._d3dContext;
if (vertexStride == elementSizeInBytes)
{
var box = new SharpDX.DataBox(dataPtr, elementCount * elementSizeInBytes, 0);
var region = new SharpDX.Direct3D11.ResourceRegion();
region.Top = 0;
region.Front = 0;
region.Back = 1;
region.Bottom = 1;
region.Left = offsetInBytes;
region.Right = offsetInBytes + (elementCount * elementSizeInBytes);
lock (d3dContext)
d3dContext.UpdateSubresource(box, _buffer, 0, region);
}
else
{
// Copy the buffer to a staging resource, so that any elements we don't write to will still be correct.
var stagingDesc = _buffer.Description;
stagingDesc.BindFlags = SharpDX.Direct3D11.BindFlags.None;
stagingDesc.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.Read | SharpDX.Direct3D11.CpuAccessFlags.Write;
stagingDesc.Usage = SharpDX.Direct3D11.ResourceUsage.Staging;
stagingDesc.OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None;
using (var stagingBuffer = new SharpDX.Direct3D11.Buffer(GraphicsDevice._d3dDevice, stagingDesc))
{
lock (d3dContext)
{
d3dContext.CopyResource(_buffer, stagingBuffer);
// Map the staging resource to a CPU accessible memory
var box = d3dContext.MapSubresource(stagingBuffer, 0, SharpDX.Direct3D11.MapMode.Read,
SharpDX.Direct3D11.MapFlags.None);
for (int i = 0; i < elementCount; i++)
{
SharpDX.Utilities.CopyMemory(
box.DataPointer + i * vertexStride + offsetInBytes,
dataPtr + i * elementSizeInBytes, elementSizeInBytes);
}
// Make sure that we unmap the resource in case of an exception
d3dContext.UnmapSubresource(stagingBuffer, 0);
// Copy back from staging resource to real buffer.
d3dContext.CopyResource(stagingBuffer, _buffer);
}
}
}
}
finally
{
dataHandle.Free();
}
}
}
// Reduce give matrix to top PC components.
public float[][] DoPca(float[][] A, int eigenCount)
{
GpuDevice gpu = new GpuDevice();
var cc = gpu.CreateConstBuffer <PcaConstants>(0);
bool transposing = (A.Length > A[0].Length);
cc.c.eigenCount = eigenCount;
cc.c.rows = transposing ? A[0].Length : A.Length;
cc.c.columns = (!transposing) ? A[0].Length : A.Length;
var resultBuf = gpu.CreateBufferRW(3, 4, 1); // to receive the total changes.
var resultStaging = gpu.CreateStagingBuffer(resultBuf);
Buffer tableBuf = gpu.CreateBufferRO(cc.c.rows * cc.c.columns, 4, 0);
double[] colMean = new double[A[0].Length];
Parallel.For(0, A[0].Length, col => {
colMean[col] = 0.0;
for (int row = 0; row < A.Length; row++)
{
colMean[col] += A[row][col];
}
colMean[col] /= A.Length;
});
using (var ds = gpu.NewWriteStream(tableBuf)) {
float[] buf = new float[cc.c.rows * cc.c.columns];
if (transposing)
{
Parallel.For(0, cc.c.columns, col => {
int offset = col * cc.c.rows;
for (int row = 0; row < cc.c.rows; row++)
{
buf[offset + row] = (float)(A[col][row] - colMean[row]);
}
});
}
else
{
Parallel.For(0, cc.c.columns, col => {
int offset = col * cc.c.rows;
for (int row = 0; row < cc.c.rows; row++)
{
buf[offset + row] = (float)(A[row][col] - colMean[col]);
}
});
}
ds.WriteRange(buf);
}
cc.c.covFactor = transposing ? 1.0f / (cc.c.columns - 1) : 1.0f / (cc.c.rows - 1);
Buffer covBuf = gpu.CreateBufferRW(cc.c.rows * cc.c.rows, 4, 0);
using (var shader = gpu.LoadShader("TsneDx.PcaCreateCovMatrix.cso")) {
gpu.SetShader(shader);
cc.c.groupNumber = 256;
for (int iBlock = 0; iBlock < cc.c.rows; iBlock += cc.c.groupNumber)
{
cc.c.iBlock = iBlock;
cc.Upload();
gpu.Run(cc.c.groupNumber);
}
}
var eVectorBuf = gpu.CreateBufferRW(cc.c.rows, 4, 2);
var eVectorStaging = gpu.CreateStagingBuffer(eVectorBuf);
var eVector2Buf = gpu.CreateBufferRW(cc.c.rows, 4, 3);
var sdInit = gpu.LoadShader("TsneDx.PcaInitIteration.cso");
var sdStep = gpu.LoadShader("TsneDx.PcaIterateOneStep.cso");
var sdNorm = gpu.LoadShader("TsneDx.PcaCalculateNormal.cso");
var sdAdjCov = gpu.LoadShader("TsneDx.PcaAdjustCovMatrix.cso");
gpu.SetShader(sdInit);
cc.c.eigenIdx = 0;
cc.Upload();
gpu.Run();
float preEigen = 1e30f;
float newEigen = 0;
float[][] eVectors = new float[eigenCount][];
double[] eValues = new double[eigenCount];
for (int eigenIdx = 0; eigenIdx < eigenCount; eigenIdx++)
{
cc.c.groupNumber = 256;
cc.Upload();
for (int repeat = 0; repeat < MAX_ITERATION; repeat++)
{
gpu.SetShader(sdStep);
gpu.Run(cc.c.groupNumber);
gpu.SetShader(sdNorm);
gpu.Run(1);
newEigen = gpu.ReadFloat(resultStaging, resultBuf);
double delta = Math.Abs((newEigen - preEigen) / preEigen);
if (delta < epsilon)
{
break;
}
preEigen = newEigen;
}
eValues[eigenIdx] = (double)newEigen;
// Eigenvector with extrem small eigenvalue (i.e. 0.0) will be ignored and stop the calculation.
if (Math.Abs(eValues[eigenIdx] / eValues[0]) < stopEpsilon)
{
Array.Resize(ref eValues, eigenIdx);
Array.Resize(ref eVectors, eigenIdx);
break;
}
eVectors[eigenIdx] = new float[cc.c.rows];
Array.Copy(gpu.ReadRange <float>(eVectorStaging, eVectorBuf, cc.c.rows), eVectors[eigenIdx], cc.c.rows);
if (eigenIdx == (eigenCount - 1))
{
break;
}
// Adjust the covariance matrix.
gpu.SetShader(sdAdjCov);
cc.c.groupNumber = 128;
cc.Upload();
gpu.Run(cc.c.groupNumber);
// Initialize the iteration loop for the next eigen-vector.
gpu.SetShader(sdInit);
cc.c.eigenIdx = eigenIdx + 1;
cc.Upload();
gpu.Run();
//CmdSynchronize();
}
if (!transposing)
{
using (var shader = gpu.LoadShader("TsneDx.PcaTransposeEigenvectors.cso")) {
int eRows = eVectors.Length;
int eColumns = eVectors[0].Length;
Buffer eigenList1 = gpu.CreateBufferRO(eRows * eColumns, 4, 1);
double[] S = eValues.Select(x => 1.0 / Math.Sqrt(Math.Abs(x * (eVectors[0].Length - 1)))).ToArray();
float[] eVector1 = new float[eRows * eColumns];
for (int row = 0; row < eRows; row++)
{
for (int col = 0; col < eColumns; col++)
{
eVector1[row * eColumns + col] = (float)(S[row] * eVectors[row][col]);
}
}
using (var ds = gpu.NewWriteStream(eigenList1))
ds.WriteRange(eVector1);
Buffer eigenList2 = gpu.CreateBufferRW(eVectors.Length * cc.c.columns, 4, 4);
gpu.SetShader(shader);
cc.c.groupNumber = 128;
cc.c.eigenCount = eVectors.Length;
cc.Upload();
gpu.Run(cc.c.groupNumber);
float[] eVectors2 = gpu.ReadRange <float>(eigenList2, eVectors.Length * cc.c.columns);
eVectors = new float[eVectors.Length][];
for (int row = 0; row < eVectors.Length; row++)
{
eVectors[row] = new float[cc.c.columns];
}
Parallel.For(0, eVectors.Length, row => {
Array.Copy(eVectors2, row * cc.c.columns, eVectors[row], 0, cc.c.columns);
});
TsneDx.SafeDispose(eigenList1, eigenList2);
}
}
float[][] B = null;
cc.c.rows = A.Length;
cc.c.columns = A[0].Length;
cc.c.eigenCount = eVectors.Length;
cc.Upload();
if (transposing)
{
// The tableBuf on GPU is in wrong matrix order. We need to upload the tableBuf in needed order here.
TsneDx.SafeDispose(tableBuf);
tableBuf = gpu.CreateBufferRO(cc.c.rows * cc.c.columns, 4, 0);
Parallel.For(0, cc.c.rows, row => {
for (int col = 0; col < cc.c.columns; col++)
{
A[row][col] -= (float)colMean[col];
}
});
gpu.WriteMarix(tableBuf, A);
}
Buffer eigenTable = gpu.CreateBufferRO(cc.c.eigenCount * cc.c.columns, 4, 1);
gpu.WriteMarix(eigenTable, eVectors);
TsneDx.SafeDispose(resultBuf);
resultBuf = gpu.CreateBufferRW(cc.c.rows * cc.c.eigenCount, 4, 1);
using (var shader = gpu.LoadShader("TsneDx.PcaReduceMatrix.cso")) {
try {
gpu.SetShader(shader);
const int GROUP_NR = 256;
gpu.Run(GROUP_NR);
float[] buf = gpu.ReadRange <float>(resultBuf, cc.c.rows * cc.c.eigenCount);
B = new float[cc.c.rows][];
for (int row = 0; row < cc.c.rows; row++)
{
B[row] = new float[cc.c.eigenCount];
}
Parallel.For(0, cc.c.rows, row => {
Array.Copy(buf, row * cc.c.eigenCount, B[row], 0, cc.c.eigenCount);
});
} catch (SharpDX.SharpDXException ex) {
string msg = ex.Message;
Console.WriteLine("GPU operation timeouted: Please try to enlarge the TDR value");
}
}
TsneDx.SafeDispose(eigenTable, sdInit, sdStep, sdNorm, sdAdjCov, eVectorBuf,
eVectorStaging, eVector2Buf, resultBuf, resultStaging, covBuf, tableBuf, cc, gpu);
return(B);
}
public IndexBuffer(PPDDevice device, SharpDX.Direct3D11.Buffer buffer) : base(device)
{
_Buffer = buffer;
}
