public override ImageCapture CaptureRenderTarget(RenderTarget surface)
{
IntPtr texNativePtr = RenderDeviceD3D11.GetTextureNativePointer(surface.Texture);
ShaderResourceView view = new ShaderResourceView(texNativePtr);
using (Texture2D source = view.Resource.QueryInterface <Texture2D>())
{
Texture2DDescription desc = source.Description;
desc.CpuAccessFlags = CpuAccessFlags.Read;
desc.Usage = ResourceUsage.Staging;
desc.BindFlags = BindFlags.None;
using (Texture2D dest = new Texture2D(_dev, desc))
{
_dev.ImmediateContext.CopyResource(source, dest);
SharpDX.DataBox data = _dev.ImmediateContext.MapSubresource(dest, 0,
MapMode.Read, SharpDX.Direct3D11.MapFlags.None);
if (_imageCapture == null || _imageCapture.Width != desc.Width || _imageCapture.Height != desc.Height)
{
_imageCapture = new ImageCapture((uint)desc.Width, (uint)desc.Height);
}
byte[] dst = _imageCapture.Pixels;
IntPtr src = data.DataPointer;
for (int i = 0; i < desc.Height; ++i)
{
int dstRow = i * (int)_imageCapture.Stride;
int srcRow = i * data.RowPitch;
for (int j = 0; j < desc.Width; j++)
{
// RGBA -> BGRA
dst[dstRow + 4 * j + 2] = Noesis.Marshal.ReadByte(src, srcRow + 4 * j + 0);
dst[dstRow + 4 * j + 1] = Noesis.Marshal.ReadByte(src, srcRow + 4 * j + 1);
dst[dstRow + 4 * j + 0] = Noesis.Marshal.ReadByte(src, srcRow + 4 * j + 2);
dst[dstRow + 4 * j + 3] = Noesis.Marshal.ReadByte(src, srcRow + 4 * j + 3);
}
}
_dev.ImmediateContext.UnmapSubresource(dest, 0);
}
}
return(_imageCapture);
}
public override ImageCapture CaptureRenderTarget(RenderTarget surface)
{
IntPtr texNativePtr = RenderDeviceD3D11.GetTextureNativePointer(surface.Texture);
SharpDX.Direct3D12.Resource texture = new SharpDX.Direct3D12.Resource(texNativePtr);
SharpDX.Direct3D12.ResourceDescription texDesc = texture.Description;
// Transition PIXEL_SHADER_RESOURCE -> COPY_SOURCE
SharpDX.Direct3D12.ResourceBarrier barrier = new SharpDX.Direct3D12.ResourceBarrier();
barrier.Type = SharpDX.Direct3D12.ResourceBarrierType.Transition;
barrier.Flags = SharpDX.Direct3D12.ResourceBarrierFlags.None;
barrier.Transition = new SharpDX.Direct3D12.ResourceTransitionBarrier(texture,
SharpDX.Direct3D12.ResourceStates.PixelShaderResource,
SharpDX.Direct3D12.ResourceStates.CopySource)
{
Subresource = 0
};
_commands.ResourceBarrier(barrier);
long totalBytes;
long[] rowSize = { 0 };
_dev.GetCopyableFootprints(ref texDesc, 0, 1, 0, null, null, rowSize, out totalBytes);
long pitch = (rowSize[0] + 255) & ~255;
// Create staging texture
SharpDX.Direct3D12.HeapProperties heap;
heap.Type = SharpDX.Direct3D12.HeapType.Readback;
heap.CPUPageProperty = SharpDX.Direct3D12.CpuPageProperty.Unknown;
heap.MemoryPoolPreference = SharpDX.Direct3D12.MemoryPool.Unknown;
heap.CreationNodeMask = 0;
heap.VisibleNodeMask = 0;
SharpDX.Direct3D12.ResourceDescription desc;
desc.Dimension = SharpDX.Direct3D12.ResourceDimension.Buffer;
desc.Alignment = 0;
desc.Width = pitch * texDesc.Height * 4;
desc.Height = 1;
desc.DepthOrArraySize = 1;
desc.MipLevels = 1;
desc.Format = SharpDX.DXGI.Format.Unknown;
desc.SampleDescription = new SampleDescription {
Count = 1, Quality = 0
};
desc.Layout = SharpDX.Direct3D12.TextureLayout.RowMajor;
desc.Flags = SharpDX.Direct3D12.ResourceFlags.None;
SharpDX.Direct3D12.Resource stagingTex = _dev.CreateCommittedResource(heap, SharpDX.Direct3D12.HeapFlags.None,
desc, SharpDX.Direct3D12.ResourceStates.CopyDestination, null);
SharpDX.Direct3D12.TextureCopyLocation copySrc = new SharpDX.Direct3D12.TextureCopyLocation(texture, 0);
SharpDX.Direct3D12.TextureCopyLocation copyDst = new SharpDX.Direct3D12.TextureCopyLocation(texture,
new SharpDX.Direct3D12.PlacedSubResourceFootprint
{
Offset = 0,
Footprint = new SharpDX.Direct3D12.SubResourceFootprint
{
Width = (int)texDesc.Width,
Height = (int)texDesc.Height,
Depth = 1,
RowPitch = (int)pitch,
Format = texDesc.Format
}
});
// Wait GPU completion
_commands.CopyTextureRegion(copyDst, 0, 0, 0, copySrc, null);
_commands.Close();
_queue.ExecuteCommandList(_commands);
WaitForGpu();
// Ensure image capture object is created with the appropriate size
if (_imageCapture == null || _imageCapture.Width != desc.Width || _imageCapture.Height != desc.Height)
{
_imageCapture = new ImageCapture((uint)desc.Width, (uint)desc.Height);
}
// Map and copy to image
byte[] dst = _imageCapture.Pixels;
IntPtr src = stagingTex.Map(0);
for (int i = 0; i < desc.Height; ++i)
{
int dstRow = i * (int)_imageCapture.Stride;
int srcRow = i * (int)pitch;
for (int j = 0; j < desc.Width; j++)
{
// RGBA -> BGRA
dst[dstRow + 4 * j + 2] = Noesis.Marshal.ReadByte(src, srcRow + 4 * j + 0);
dst[dstRow + 4 * j + 1] = Noesis.Marshal.ReadByte(src, srcRow + 4 * j + 1);
dst[dstRow + 4 * j + 0] = Noesis.Marshal.ReadByte(src, srcRow + 4 * j + 2);
dst[dstRow + 4 * j + 3] = Noesis.Marshal.ReadByte(src, srcRow + 4 * j + 3);
}
}
stagingTex.Unmap(0);
return(_imageCapture);
}