/// <summary>
/// Copies the content of the specified texture.
/// </summary>
/// <param name="device">The Direct3D 11 device.</param>
/// <param name="source">The source texture.</param>
/// <param name="target">The target texture.</param>
/// <exception cref="ArgumentNullException">
/// <paramref name="device"/>, <paramref name="source"/> or <paramref name="target"/> is
/// <see langword="null"/>.
/// </exception>
public static void Copy(Device device, Texture2D source, Texture2D target)
{
if (device == null)
throw new ArgumentNullException("device");
if (source == null)
throw new ArgumentNullException("source");
if (target == null)
throw new ArgumentNullException("target");
int sourceWidth = source.Description.Width;
int sourceHeight = source.Description.Height;
int targetWidth = target.Description.Width;
int targetHeight = target.Description.Height;
if (sourceWidth == targetWidth && sourceHeight == targetHeight)
{
device.ImmediateContext.CopyResource(source, target);
}
else
{
int width = Math.Min(sourceWidth, targetWidth);
int height = Math.Min(sourceHeight, targetHeight);
var region = new ResourceRegion(0, 0, 0, width, height, 1);
device.ImmediateContext.CopySubresourceRegion(source, 0, region, target, 0);
}
}
/// <summary>
/// Sets 2D texture data, specifying a mipmap level, source rectangle, start index, and number of elements.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="level"></param>
/// <param name="data"></param>
/// <param name="startIndex"></param>
/// <param name="elementCount"></param>
public void SetData <T>(int level, Rectangle?rect, T[] data, int startIndex, int elementCount) where T : struct
{
var elementSizeInByte = Marshal.SizeOf(typeof(T));
var dataHandle = GCHandle.Alloc(data, GCHandleType.Pinned);
// Use try..finally to make sure dataHandle is freed in case of an error
try {
var startBytes = startIndex * elementSizeInByte;
var dataPtr = (IntPtr)(dataHandle.AddrOfPinnedObject().ToInt64() + startBytes);
int x, y, w, h;
if (rect.HasValue)
{
x = rect.Value.X;
y = rect.Value.Y;
w = rect.Value.Width;
h = rect.Value.Height;
}
else
{
x = 0;
y = 0;
w = Math.Max(Width >> level, 1);
h = Math.Max(Height >> level, 1);
// For DXT textures the width and height of each level is a multiple of 4.
if (format == ColorFormat.Dxt1 ||
format == ColorFormat.Dxt3 ||
format == ColorFormat.Dxt5)
{
w = (w + 3) & ~3;
h = (h + 3) & ~3;
}
}
var box = new SharpDX.DataBox(dataPtr, w * Converter.SizeOf(format), 0);
var region = new SharpDX.Direct3D11.ResourceRegion();
region.Top = y;
region.Front = 0;
region.Back = 1;
region.Bottom = y + h;
region.Left = x;
region.Right = x + w;
lock (device.DeviceContext) {
device.DeviceContext.UpdateSubresource(box, tex2D, level, region);
}
} finally {
dataHandle.Free();
}
}
private void RenderFrame(BitmapFrame frame)
{
// Make sure there's a texture to render to
// TODO: Can probably afford to remove width/height from frame, and just add the buffer name. this client code can then check that the buffer name matches what it expects, and noop if it doesn't
if (texture == null)
{
BuildTexture(frame.Width, frame.Height);
}
// If the details don't match our expected sizes, noop the frame to avoid a CTD.
// This may "stick" and cause no rendering at all, but can be fixed by jiggling the size a bit, or reloading.
if (
texture.Description.Width != frame.Width ||
texture.Description.Height != frame.Height ||
bitmapBuffer.BufferSize != frame.Length
)
{
return;
}
// Calculate multipliers for the frame
var depthPitch = frame.Length;
var rowPitch = frame.Length / frame.Height;
var bytesPerPixel = rowPitch / frame.Width;
// Build the destination region for the dirty rect we're drawing
var texDesc = texture.Description;
var sourceRegionOffset = (frame.DirtyX * bytesPerPixel) + (frame.DirtyY * rowPitch);
var destinationRegion = new D3D11.ResourceRegion()
{
Top = Math.Min(frame.DirtyY, texDesc.Height),
Bottom = Math.Min(frame.DirtyY + frame.DirtyHeight, texDesc.Height),
Left = Math.Min(frame.DirtyX, texDesc.Width),
Right = Math.Min(frame.DirtyX + frame.DirtyWidth, texDesc.Width),
Front = 0,
Back = 1,
};
// Write data from the buffer
var context = DxHandler.Device.ImmediateContext;
bitmapBuffer.Read(ptr =>
{
context.UpdateSubresource(texture, 0, destinationRegion, ptr + sourceRegionOffset, rowPitch, depthPitch);
});
}
private SurfaceWithInfo WaitForNewFrame()
{
_currentFrame?.Dispose();
_frameEvent.Reset();//获取新帧
var whiteRegion = new SharpDX.Direct3D11.ResourceRegion(0, 0, 0, 1920, 1080, 1);
var signaledEvent = _events[WaitHandle.WaitAny(_events)];
if (signaledEvent == _closedEvent)
{
Cleanup();
return(null);
}
var result = new SurfaceWithInfo {
SystemRelativeTime = _currentFrame.SystemRelativeTime
};
using (var multithreadLock = new MultithreadLock(_multithread))
using (var sourceTexture = Direct3D11Helpers.CreateSharpDXTexture2D(_currentFrame.Surface))
{
_d3dDevice.ImmediateContext.ClearRenderTargetView(_composeRenderTargetView, new SharpDX.Mathematics.Interop.RawColor4(0, 0, 0, 1));
var region = new SharpDX.Direct3D11.ResourceRegion(LocationX > 0?LocationX:0, LocationY > 0?LocationY:0, 0,
(LocationX + 1920 > sourceTexture.Description.Width ? sourceTexture.Description.Width : LocationX + 1920),
(LocationY + 1080 > sourceTexture.Description.Height ? sourceTexture.Description.Height : LocationY + 1080), 1);
_d3dDevice.ImmediateContext.CopySubresourceRegion(sourceTexture, 0, whiteRegion, _blankComposeTexture, 0); //覆盖掉原本区域
_d3dDevice.ImmediateContext.CopySubresourceRegion(sourceTexture, 0, region, _tarComposeTexture, LocationX >= 0?0:(1920 + LocationX > 0? 1920 + LocationX - 1:0),
LocationY >= 0?0:(1080 + LocationY - 1 > 0? 1080 + LocationY - 1:0), 0); //_targetTexture为剪切后的区域
//https://stackoverflow.com/questions/64130136/texture2d-from-byte-array-sharpdx
//实现空白区域
var description = _tarComposeTexture.Description;
description.Usage = SharpDX.Direct3D11.ResourceUsage.Default;
description.BindFlags = SharpDX.Direct3D11.BindFlags.ShaderResource | SharpDX.Direct3D11.BindFlags.RenderTarget;
description.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None;
description.OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None;
using (var copyTexture = new SharpDX.Direct3D11.Texture2D(_d3dDevice, description))
{
_d3dDevice.ImmediateContext.CopyResource(_tarComposeTexture, copyTexture);
result.Surface = Direct3D11Helpers.CreateDirect3DSurfaceFromSharpDXTexture(copyTexture);
}
}
return(result);
}
/// <summary>
/// 原始思想：http://stackoverflow.com/questions/19364012/d3d11-creating-a-cube-map-from-6-images
/// 上面的链接页面中，OptionFlags 的参数错误，后参考 http://www.gamedev.net/topic/647237-dx11-cube-texture-creation/ 做出修正。
/// </summary>
/// <param name="device"></param>
/// <param name="texture2Ds"></param>
/// <returns></returns>
public static ShaderResourceView CreateCubeMapFrom6Textures(Device device, Texture2D[] texture2Ds) {
Debug.Assert(texture2Ds.Length == 6);
var texElemDesc = texture2Ds[0].Description;
var texArrayDesc = new Texture2DDescription() {
Width = texElemDesc.Width,
Height = texElemDesc.Height,
MipLevels = texElemDesc.MipLevels,
ArraySize = 6,
Format = texElemDesc.Format,
SampleDescription = new SampleDescription(1, 0),
Usage = ResourceUsage.Default,
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.TextureCube
};
var texArray = new Texture2D(device, texArrayDesc);
var context = device.ImmediateContext;
var sourceRegion = new ResourceRegion();
for (var i = 0; i < 6; ++i) {
for (var mipLevel = 0; mipLevel < texArrayDesc.MipLevels; ++mipLevel) {
sourceRegion.Left = 0;
sourceRegion.Right = texArrayDesc.Width >> mipLevel;
sourceRegion.Top = 0;
sourceRegion.Bottom = texArrayDesc.Height >> mipLevel;
sourceRegion.Front = 0;
sourceRegion.Back = 1;
if (sourceRegion.Bottom <= 0 || sourceRegion.Right <= 0) {
break;
}
var n = Resource.CalculateSubResourceIndex(mipLevel, i, texArrayDesc.MipLevels);
context.CopySubresourceRegion(texture2Ds[i], mipLevel, sourceRegion, texArray, n);
}
}
var viewDesc = new ShaderResourceViewDescription() {
Format = texArrayDesc.Format,
Dimension = ShaderResourceViewDimension.TextureCube,
TextureCube = new ShaderResourceViewDescription.TextureCubeResource() {
MostDetailedMip = 0,
MipLevels = texArrayDesc.MipLevels
}
};
return new ShaderResourceView(device, texArray, viewDesc);
}
// Method to marshal from native to managed struct
internal unsafe void __MarshalFrom(ref __Native @ref)
{
this.SourceRegionPointer = @ref.SourceRegionPointer;
this.DestinationRegionPointer = @ref.DestinationRegionPointer;
this.FirstSourceMip = @ref.FirstSourceMip;
this.FirstDestinationMip = @ref.FirstDestinationMip;
this.MipCount = @ref.MipCount;
this.FirstSourceElement = @ref.FirstSourceElement;
this.FirstDestinationElement = @ref.FirstDestinationElement;
this.ElementCount = @ref.ElementCount;
this.Filter = @ref.Filter;
this.MipFilter = @ref.MipFilter;
this.SourceRegion = new ResourceRegion();
if (@ref.SourceRegionPointer != IntPtr.Zero)
Utilities.Read<ResourceRegion>(@ref.SourceRegionPointer, ref this.SourceRegion);
this.DestinationRegion = new ResourceRegion();
if (@ref.DestinationRegionPointer != IntPtr.Zero)
Utilities.Read<ResourceRegion>(@ref.DestinationRegionPointer, ref this.DestinationRegion);
}
public SurfaceWithInfo WaitForNewFrame()
{
// Let's get a fresh one.
_currentFrame?.Dispose();
_frameEvent.Reset();
var signaledEvent = _events[WaitHandle.WaitAny(_events)];
if (signaledEvent == _closedEvent)
{
Cleanup();
return(null);
}
var result = new SurfaceWithInfo();
result.SystemRelativeTime = _currentFrame.SystemRelativeTime;
using (var multithreadLock = new MultithreadLock(_multithread))
using (var sourceTexture = Direct3D11Helpers.CreateSharpDXTexture2D(_currentFrame.Surface))
{
_sharpDxD3dDevice.ImmediateContext.ClearRenderTargetView(_composeRenderTargetView, new SharpDX.Mathematics.Interop.RawColor4(0, 0, 0, 1));
var width = Math.Clamp(_currentFrame.ContentSize.Width, 0, _currentFrame.Surface.Description.Width);
var height = Math.Clamp(_currentFrame.ContentSize.Height, 0, _currentFrame.Surface.Description.Height);
var region = new SharpDX.Direct3D11.ResourceRegion(0, 0, 0, width, height, 1);
_sharpDxD3dDevice.ImmediateContext.CopySubresourceRegion(sourceTexture, 0, region, _composeTexture, 0);
var description = sourceTexture.Description;
description.Usage = SharpDX.Direct3D11.ResourceUsage.Default;
description.BindFlags = SharpDX.Direct3D11.BindFlags.ShaderResource | SharpDX.Direct3D11.BindFlags.RenderTarget;
description.CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None;
description.OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None;
using (var copyTexture = new SharpDX.Direct3D11.Texture2D(_sharpDxD3dDevice, description))
{
_sharpDxD3dDevice.ImmediateContext.CopyResource(_composeTexture, copyTexture);
result.Surface = Direct3D11Helpers.CreateDirect3DSurfaceFromSharpDXTexture(copyTexture);
}
}
return(result);
}
public void CopyRegion(GraphicsResource source, int sourceSubresource, ResourceRegion?sourecRegion, GraphicsResource destination, int destinationSubResource, int dstX = 0, int dstY = 0, int dstZ = 0)
{
if (source == null)
{
throw new ArgumentNullException("source");
}
if (destination == null)
{
throw new ArgumentNullException("destination");
}
var nullableSharpDxRegion = new SharpDX.Direct3D11.ResourceRegion?();
if (sourecRegion.HasValue)
{
var value = sourecRegion.Value;
nullableSharpDxRegion = new SharpDX.Direct3D11.ResourceRegion(value.Left, value.Top, value.Front, value.Right, value.Bottom, value.Back);
}
NativeDeviceContext.CopySubresourceRegion(source.NativeResource, sourceSubresource, nullableSharpDxRegion, destination.NativeResource, destinationSubResource, dstX, dstY, dstZ);
}
internal unsafe void UpdateGeneric(List<MyInstanceData> instanceData, int capacity)
{
var instancesNum = instanceData.Count;
if (m_capacity < instancesNum && VertexBuffer != VertexBufferId.NULL)
{
MyHwBuffers.Destroy(VertexBuffer);
VertexBuffer = VertexBufferId.NULL;
}
if (m_capacity < instancesNum)
{
m_capacity = Math.Max(instancesNum, capacity);
VertexBuffer = MyHwBuffers.CreateVertexBuffer(m_capacity, sizeof(MyVertexFormatGenericInstance), null, m_debugName + " instances buffer");
}
fixed (MyInstanceData* dataPtr = instanceData.ToArray())
{
DataBox srcBox = new DataBox(new IntPtr(dataPtr));
ResourceRegion dstRegion = new ResourceRegion(0, 0, 0, sizeof(MyVertexFormatGenericInstance) * instancesNum, 1, 1);
MyRender11.ImmediateContext.UpdateSubresource(srcBox, VertexBuffer.Buffer, 0, dstRegion);
}
}
// Method to marshal from native to managed struct
internal unsafe void __MarshalFrom(ref __Native @ref)
{
this.SourceRegionPointer = @ref.SourceRegionPointer;
this.DestinationRegionPointer = @ref.DestinationRegionPointer;
this.FirstSourceMip = @ref.FirstSourceMip;
this.FirstDestinationMip = @ref.FirstDestinationMip;
this.MipCount = @ref.MipCount;
this.FirstSourceElement = @ref.FirstSourceElement;
this.FirstDestinationElement = @ref.FirstDestinationElement;
this.ElementCount = @ref.ElementCount;
this.Filter = @ref.Filter;
this.MipFilter = @ref.MipFilter;
this.SourceRegion = new ResourceRegion();
if (@ref.SourceRegionPointer != IntPtr.Zero)
{
Utilities.Read <ResourceRegion>(@ref.SourceRegionPointer, ref this.SourceRegion);
}
this.DestinationRegion = new ResourceRegion();
if (@ref.DestinationRegionPointer != IntPtr.Zero)
{
Utilities.Read <ResourceRegion>(@ref.DestinationRegionPointer, ref this.DestinationRegion);
}
}
public override void OnPaint(PaintElementType type, Rect dirtyRect, IntPtr buffer, int width, int height)
{
var targetTexture = type switch
{
PaintElementType.View => texture,
PaintElementType.Popup => popupTexture,
_ => throw new Exception($"Unknown paint type {type}"),
};
// Nasty hack; we're keeping a ref to the view buffer for pixel lookups without going through DX
if (type == PaintElementType.View)
{
bufferPtr = buffer;
bufferWidth = width;
bufferHeight = height;
}
// Calculate offset multipliers for the current buffer
var rowPitch = width * bytesPerPixel;
var depthPitch = rowPitch * height;
// Build the destination region for the dirty rect that we'll draw to
var texDesc = targetTexture.Description;
var sourceRegionPtr = buffer + (dirtyRect.X * bytesPerPixel) + (dirtyRect.Y * rowPitch);
var destinationRegion = new D3D11.ResourceRegion()
{
Top = Math.Min(dirtyRect.Y, texDesc.Height),
Bottom = Math.Min(dirtyRect.Y + dirtyRect.Height, texDesc.Height),
Left = Math.Min(dirtyRect.X, texDesc.Width),
Right = Math.Min(dirtyRect.X + dirtyRect.Width, texDesc.Width),
Front = 0,
Back = 1,
};
// Draw to the target
var context = targetTexture.Device.ImmediateContext;
context.UpdateSubresource(targetTexture, 0, destinationRegion, sourceRegionPtr, rowPitch, depthPitch);
// Only need to do composition + flush on primary texture
if (type != PaintElementType.View)
{
return;
}
// Intersect with dirty?
if (popupVisible)
{
context.CopySubresourceRegion(popupTexture, 0, null, targetTexture, 0, popupRect.X, popupRect.Y);
}
context.Flush();
// Rendering is complete, clean up any obsolete textures
var textures = obsoluteTextures;
obsoluteTextures = new ConcurrentBag <D3D11.Texture2D>();
foreach (var texture in textures)
{
texture.Dispose();
}
}
public void Test1D()
{
var textureData = new byte[256];
for(int i = 0; i < textureData.Length; i++)
textureData[i] = (byte)i;
// -------------------------------------------------------
// General test for a Texture1D
// -------------------------------------------------------
// Create Texture1D
var texture = Texture1D.New(GraphicsDevice, textureData.Length, PixelFormat.R8.UNorm);
// Check description against native description
var d3d11Texture = (Direct3D11.Texture1D)texture;
var d3d11SRV = (Direct3D11.ShaderResourceView)texture;
Assert.AreEqual(d3d11Texture.Description, new Direct3D11.Texture1DDescription() {
Width = textureData.Length,
ArraySize = 1,
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.None,
Format = DXGI.Format.R8_UNorm,
MipLevels = 1,
OptionFlags = ResourceOptionFlags.None,
Usage = ResourceUsage.Default
});
// Check shader resource view.
var srvDescription = d3d11SRV.Description;
// Clear those fields that are garbage returned from ShaderResourceView.Description.
srvDescription.Texture2DArray.ArraySize = 0;
srvDescription.Texture2DArray.FirstArraySlice = 0;
Assert.AreEqual(srvDescription, new Direct3D11.ShaderResourceViewDescription()
{
Dimension = ShaderResourceViewDimension.Texture1D,
Format = DXGI.Format.R8_UNorm,
Texture1D = { MipLevels = 1, MostDetailedMip = 0 },
});
// Check mipmap description
var mipmapDescription = texture.GetMipMapDescription(0);
var rowStride = textureData.Length * sizeof(byte);
var refMipmapDescription = new MipMapDescription(textureData.Length, 1, 1, rowStride, rowStride, textureData.Length, 1);
Assert.AreEqual(mipmapDescription, refMipmapDescription);
// Check that getting the default SRV is the same as getting the first mip/array
Assert.AreEqual(texture.ShaderResourceView[ViewType.Full, 0, 0].View, d3d11SRV);
// Check GraphicsDevice.GetData/SetData data
// Upload the textureData to the GPU
texture.SetData(GraphicsDevice, textureData);
// Read back data from the GPU
var readBackData = texture.GetData<byte>();
// Check that both content are equal
Assert.True(Utilities.Compare(textureData, readBackData));
// -------------------------------------------------------
// Check with Texture1D.Clone and GraphicsDevice.Copy
// -------------------------------------------------------
using (var texture2 = texture.Clone<Texture1D>())
{
GraphicsDevice.Copy(texture, texture2);
readBackData = texture2.GetData<byte>();
// Check that both content are equal
Assert.True(Utilities.Compare(textureData, readBackData));
}
// -------------------------------------------------------
// Test SetData using a ResourceRegion
// -------------------------------------------------------
// Set the last 4 pixels in different orders
var smallTextureDataRegion = new byte[] { 4, 3, 2, 1 };
var region = new ResourceRegion(textureData.Length - 4, 0, 0, textureData.Length, 1, 1);
texture.SetData(GraphicsDevice, smallTextureDataRegion, 0, 0, region);
readBackData = texture.GetData<byte>();
Array.Copy(smallTextureDataRegion, 0, textureData, textureData.Length - 4, 4);
// Check that both content are equal
Assert.True(Utilities.Compare(textureData, readBackData));
// -------------------------------------------------------
// Texture.Dispose()
// -------------------------------------------------------
// TODO check that Dispose is implemented correctly
texture.Dispose();
}
internal unsafe void UpdateCube(List<MyCubeInstanceData> instanceData, int capacity)
{
Debug.Assert(m_type == MyRenderInstanceBufferType.Cube);
var instancesNum = instanceData.Count;
if (m_capacity < instancesNum && VB != VertexBufferId.NULL)
{
MyHwBuffers.Destroy(VB);
VB = VertexBufferId.NULL;
}
if (m_capacity < instancesNum)
{
m_capacity = Math.Max(instancesNum, capacity);
VB = MyHwBuffers.CreateVertexBuffer(m_capacity, sizeof(MyVertexFormatCubeInstance), null, m_debugName + " instances buffer");
}
var rawBuffer = new MyVertexFormatCubeInstance[m_capacity];
for (int i = 0; i < instancesNum; i++)
{
fixed (byte* pSource = instanceData[i].RawBones(), pTarget = rawBuffer[i].bones)
{
for (int j = 0; j < MyRender11Constants.CUBE_INSTANCE_BONES_NUM * 4; j++)
pTarget[j] = pSource[j];
}
rawBuffer[i].translationRotation = new HalfVector4(instanceData[i].m_translationAndRot);
rawBuffer[i].colorMaskHSV = new HalfVector4(instanceData[i].ColorMaskHSV);
}
fixed (MyVertexFormatCubeInstance* dataPtr = rawBuffer)
{
DataBox srcBox = new DataBox(new IntPtr(dataPtr));
ResourceRegion dstRegion = new ResourceRegion(0, 0, 0, sizeof(MyVertexFormatCubeInstance) * instancesNum, 1, 1);
MyRender11.ImmediateContext.UpdateSubresource(srcBox, VB.Buffer, 0, dstRegion);
}
BumpRenderable();
}
internal unsafe static void UpdateVertexBuffer(InstancingId id)
{
var info = id.Info;
if (info.Capacity == 0)
{
return;
}
fixed (byte* ptr = info.Data)
{
if(Data[id.Index].VB == VertexBufferId.NULL)
{
Data[id.Index].VB = MyHwBuffers.CreateVertexBuffer(info.Capacity, info.Stride, new IntPtr(ptr), info.DebugName);
}
else
{
var vb = Data[id.Index].VB;
MyHwBuffers.ResizeVertexBuffer(vb, info.Capacity);
DataBox srcBox = new DataBox(new IntPtr(ptr));
ResourceRegion dstRegion = new ResourceRegion(0, 0, 0, info.Stride * info.Capacity, 1, 1);
MyRender11.ImmediateContext.UpdateSubresource(srcBox, vb.Buffer, 0, dstRegion);
}
}
}
public void UpdateMemory(int width, int height, Format format, uint[] data, int pitch)
{
using (var stream = new DataStream(data.Length * 4, true, true))
{
stream.WriteRange(data);
stream.Position = 0;
var box = new DataBox(stream.DataPointer, pitch, 0);
if (IsDirty(width, height, format, 1))
CreateNew(width, height, format, new[] { box });
else
{
var region = new ResourceRegion
{
Back = 1,
Bottom = height,
Front = 0,
Left = 0,
Right = width,
Top = 0
};
mContext.Context.UpdateSubresource(mTexture, 0, region, box.DataPointer, width * 4, 0);
}
}
}
/// <summary>
/// Gets a copy of 2D texture data, specifying a mipmap level, source rectangle, start index, and number of elements.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="level"></param>
/// <param name="rect"></param>
/// <param name="data"></param>
/// <param name="startIndex"></param>
/// <param name="elementCount"></param>
public void GetData <T>(int level, Rectangle?rect, T[] data, int startIndex, int elementCount) where T : struct
{
if (data == null || data.Length == 0)
{
throw new ArgumentException("data cannot be null");
}
if (data.Length < startIndex + elementCount)
{
throw new ArgumentException("The data passed has a length of " + data.Length + " but " + elementCount + " pixels have been requested.");
}
if (rect.HasValue)
{
throw new NotImplementedException("Set 'rect' parameter to null.");
}
var mipWidth = MathUtil.Clamp(Width >> level, 1, Width);
var mipHeight = MathUtil.Clamp(Width >> level, 1, Height);
// Create a temp staging resource for copying the data.
//
// TODO: We should probably be pooling these staging resources
// and not creating a new one each time.
//
var desc = new SharpDX.Direct3D11.Texture2DDescription();
desc.Width = mipWidth;
desc.Height = mipHeight;
desc.MipLevels = 1;
desc.ArraySize = 1;
desc.Format = Converter.Convert(Format);
desc.BindFlags = D3D.BindFlags.None;
desc.CpuAccessFlags = D3D.CpuAccessFlags.Read;
desc.SampleDescription.Count = 1;
desc.SampleDescription.Quality = 0;
desc.Usage = D3D.ResourceUsage.Staging;
desc.OptionFlags = D3D.ResourceOptionFlags.None;
var d3dContext = device.DeviceContext;
using (var stagingTex = new D3D.Texture2D(device.Device, desc)) {
lock (d3dContext) {
//
// Copy the data from the GPU to the staging texture.
//
int elementsInRow;
int rows;
if (rect.HasValue)
{
elementsInRow = rect.Value.Width;
rows = rect.Value.Height;
var region = new D3D.ResourceRegion(rect.Value.Left, rect.Value.Top, 0, rect.Value.Right, rect.Value.Bottom, 1);
d3dContext.CopySubresourceRegion(tex2D, level, region, stagingTex, 0, 0, 0, 0);
}
else
{
elementsInRow = mipWidth;
rows = mipHeight;
d3dContext.CopySubresourceRegion(tex2D, level, null, stagingTex, 0, 0, 0, 0);
}
// Copy the data to the array :
DataStream stream;
var databox = d3dContext.MapSubresource(stagingTex, 0, D3D.MapMode.Read, D3D.MapFlags.None, out stream);
// Some drivers may add pitch to rows.
// We need to copy each row separatly and skip trailing zeros.
var currentIndex = startIndex;
var elementSize = Marshal.SizeOf(typeof(T));
for (var row = 0; row < rows; row++)
{
stream.ReadRange(data, currentIndex, elementsInRow);
stream.Seek(databox.RowPitch - (elementSize * elementsInRow), SeekOrigin.Current);
currentIndex += elementsInRow;
}
stream.Dispose();
}
}
}
/// <summary>
/// Copies data from the CPU to to a non-mappable subresource region.
/// </summary>
/// <param name = "source">The source data.</param>
/// <param name = "resource">The destination resource.</param>
/// <param name="srcBytesPerElement">The size in bytes per pixel/block element.</param>
/// <param name = "subresource">The destination subresource.</param>
/// <param name = "region">The destination region within the resource.</param>
/// <param name="isCompressedResource">if set to <c>true</c> the resource is a block/compressed resource</param>
/// <remarks>
/// This method is implementing the <a href="http://blogs.msdn.com/b/chuckw/archive/2010/07/28/known-issue-direct3d-11-updatesubresource-and-deferred-contexts.aspx">workaround for deferred context</a>.
/// </remarks>
/// <unmanaged>void ID3D11DeviceContext::UpdateSubresource([In] ID3D11Resource* pDstResource,[In] unsigned int DstSubresource,[In, Optional] const D3D11_BOX* pDstBox,[In] const void* pSrcData,[In] unsigned int SrcRowPitch,[In] unsigned int SrcDepthPitch)</unmanaged>
public void UpdateSubresourceSafe(DataBox source, Resource resource, int srcBytesPerElement, int subresource, ResourceRegion region, bool isCompressedResource = false)
{
UpdateSubresourceSafe(resource, subresource, region, source.DataPointer, source.RowPitch, source.SlicePitch, srcBytesPerElement, isCompressedResource);
}
/// <summary>
/// Copies data from the CPU to to a non-mappable subresource region.
/// </summary>
/// <param name = "source">The source data.</param>
/// <param name = "resource">The destination resource.</param>
/// <param name = "subresource">The destination subresource.</param>
/// <param name = "region">The destination region within the resource.</param>
/// <remarks>
/// This method is implementing the <a href="http://blogs.msdn.com/b/chuckw/archive/2010/07/28/known-issue-direct3d-11-updatesubresource-and-deferred-contexts.aspx">workaround for deferred context</a>.
/// </remarks>
/// <unmanaged>void ID3D11DeviceContext::UpdateSubresource([In] ID3D11Resource* pDstResource,[In] unsigned int DstSubresource,[In, Optional] const D3D11_BOX* pDstBox,[In] const void* pSrcData,[In] unsigned int SrcRowPitch,[In] unsigned int SrcDepthPitch)</unmanaged>
public void UpdateSubresource(DataBox source, Resource resource, int subresource, ResourceRegion region)
{
UpdateSubresource(resource, subresource, region, source.DataPointer, source.RowPitch, source.SlicePitch);
}
public void CopyRegion(GraphicsResource source, int sourceSubresource, ResourceRegion? sourecRegion, GraphicsResource destination, int destinationSubResource, int dstX = 0, int dstY = 0, int dstZ = 0)
{
if (source == null) throw new ArgumentNullException("source");
if (destination == null) throw new ArgumentNullException("destination");
var nullableSharpDxRegion = new SharpDX.Direct3D11.ResourceRegion?();
if (sourecRegion.HasValue)
{
var value = sourecRegion.Value;
nullableSharpDxRegion = new SharpDX.Direct3D11.ResourceRegion(value.Left, value.Top, value.Front, value.Right, value.Bottom, value.Back);
}
NativeDeviceContext.CopySubresourceRegion(source.NativeResource, sourceSubresource, nullableSharpDxRegion, destination.NativeResource, destinationSubResource, dstX, dstY, dstZ);
}
public void UpdateMemory(int width, int height, Format format, byte[] data, int pitch)
{
using (var stream = new DataStream(data.Length, true, true))
{
stream.WriteRange(data);
stream.Position = 0;
var box = new DataBox(stream.DataPointer, pitch, 0);
if (width != mTexture.Description.Width || height != mTexture.Description.Height ||
format != mTexture.Description.Format || mTexture.Description.MipLevels != 1 ||
mTexture == gDefaultTexture)
{
CreateNew(width, height, format, new[] { box });
}
else
{
var region = new ResourceRegion
{
Back = 1,
Bottom = height,
Front = 0,
Left = 0,
Right = width,
Top = 0
};
mContext.Context.UpdateSubresource(mTexture, 0, region, box.DataPointer, width * 4, 0);
}
}
}
public MeshDeviceResources(Device device, SharpDX.WIC.ImagingFactory2 imagingFactory, Mesh mesh)
{
this.mesh = mesh;
// create single vertex buffer
var stream = new DataStream(mesh.vertices.Count * Mesh.VertexPositionNormalTexture.sizeInBytes, true, true);
stream.WriteRange(mesh.vertices.ToArray());
stream.Position = 0;
var vertexBufferDesc = new BufferDescription()
{
BindFlags = BindFlags.VertexBuffer,
CpuAccessFlags = CpuAccessFlags.None,
Usage = ResourceUsage.Default,
SizeInBytes = mesh.vertices.Count * Mesh.VertexPositionNormalTexture.sizeInBytes,
};
vertexBuffer = new SharpDX.Direct3D11.Buffer(device, stream, vertexBufferDesc);
stream.Dispose();
vertexBufferBinding = new VertexBufferBinding(vertexBuffer, Mesh.VertexPositionNormalTexture.sizeInBytes, 0);
foreach (var subset in mesh.subsets)
{
if (subset.material.textureFilename != null)
{
var decoder = new SharpDX.WIC.BitmapDecoder(imagingFactory, subset.material.textureFilename, SharpDX.WIC.DecodeOptions.CacheOnLoad);
var bitmapFrameDecode = decoder.GetFrame(0);
var stagingTextureDesc = new Texture2DDescription()
{
Width = bitmapFrameDecode.Size.Width,
Height = bitmapFrameDecode.Size.Height,
MipLevels = 1,
ArraySize = 1,
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
Usage = ResourceUsage.Dynamic,
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.Write
};
var stagingTexture = new Texture2D(device, stagingTextureDesc);
var textureDesc = new Texture2DDescription()
{
Width = bitmapFrameDecode.Size.Width,
Height = bitmapFrameDecode.Size.Height,
MipLevels = 0,
ArraySize = 1,
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
Usage = ResourceUsage.Default,
BindFlags = BindFlags.ShaderResource | BindFlags.RenderTarget,
CpuAccessFlags = CpuAccessFlags.None,
OptionFlags = ResourceOptionFlags.GenerateMipMaps
};
var texture = new Texture2D(device, textureDesc);
// convert to 32 bpp
var formatConverter = new FormatConverter(imagingFactory);
formatConverter.Initialize(bitmapFrameDecode, SharpDX.WIC.PixelFormat.Format32bppBGR);
var dataBox = device.ImmediateContext.MapSubresource(stagingTexture, 0, MapMode.WriteDiscard, SharpDX.Direct3D11.MapFlags.None);
formatConverter.CopyPixels(dataBox.RowPitch, dataBox.DataPointer, dataBox.RowPitch * bitmapFrameDecode.Size.Height);
device.ImmediateContext.UnmapSubresource(stagingTexture, 0);
var resourceRegion = new ResourceRegion()
{
Left = 0,
Top = 0,
Right = bitmapFrameDecode.Size.Width,
Bottom = bitmapFrameDecode.Size.Height,
Front = 0,
Back = 1,
};
device.ImmediateContext.CopySubresourceRegion(stagingTexture, 0, resourceRegion, texture, 0);
var textureRV = new ShaderResourceView(device, texture);
device.ImmediateContext.GenerateMips(textureRV);
decoder.Dispose();
formatConverter.Dispose();
bitmapFrameDecode.Dispose();
textureRVs[subset] = textureRV;
}
}
}