この前の質問のように、Direct3D11 を使用してイメージ ワーピングを非常に高速に実行しようとしていますが、すべてを連携させることができないようです。
DXGI サーフェスを Direct2D ビットマップに読み込もうとすると、うまくいきません。
var renderSurface = renderTexture.QueryInterface<SharpDX.DXGI.Surface>();
var props = new BitmapProperties
{
PixelFormat = new SharpDX.Direct2D1.PixelFormat(
Format.B8G8R8A8_UNorm,
AlphaMode.Premultiplied
)
};
// This throws "No such interface supported"
var direct2DBitmap =
new SharpDX.Direct2D1.Bitmap(_bitmapRenderTarget, renderSurface, props);
また、メソッドを使用してサーフェスを直接読み取ろうとしましたMapが、データで何かをしようとする前に失敗します。
var renderSurface = renderTexture.QueryInterface<SharpDX.DXGI.Surface>();
// This throws "The parameter is incorrect."
renderSurface.Map(MapFlags.Read);
より完全なコードを以下に示します。また、この仕事に関係のないものがここにあるとしたら... 私はすべて耳を傾けています。私は実際には 3D の人間ではなく、簡単な Direct2D ソリューションを持たない非常に具体的な問題を解決しようとしているだけです。
public void AddImage(BitmapSource bitmapSource, SharpDX.Vector2[] abcd)
{
Device device;
Texture2D renderTexture = null;
device = new Device(DriverType.Hardware, DeviceCreationFlags.BgraSupport);
renderTexture = new Texture2D(device, new Texture2DDescription
{
Width = _size.Width,
Height = _size.Height,
Format = SharpDX.DXGI.Format.B8G8R8A8_UNorm,
MipLevels = 1,
ArraySize = 1,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
BindFlags = BindFlags.RenderTarget | BindFlags.ShaderResource,
Usage = ResourceUsage.Default,
});
var renderView = new RenderTargetView(device, renderTexture);
//
// Load the input bitmap as a texture
//
var texture = CreateTexture2DFromBitmap(device, bitmapSource);
var textureView = new ShaderResourceView(device, texture);
var sampler = new SamplerState(device, new SamplerStateDescription()
{
Filter = Filter.MinMagMipLinear,
AddressU = TextureAddressMode.Wrap,
AddressV = TextureAddressMode.Wrap,
AddressW = TextureAddressMode.Wrap,
BorderColor = Color.Black,
ComparisonFunction = Comparison.Never,
MaximumAnisotropy = 16,
MipLodBias = 0,
MinimumLod = 0,
MaximumLod = 16,
});
//
// Setup the scene
// These shaders are from the MiniCubeTexture sample for SharpDX
//
var vertexShaderByteCode = ShaderBytecode.CompileFromFile("MiniCubeTexture.fx", "VS", "vs_4_0");
var vertexShader = new VertexShader(device, vertexShaderByteCode);
var pixelShaderByteCode = ShaderBytecode.CompileFromFile("MiniCubeTexture.fx", "PS", "ps_4_0");
var pixelShader = new PixelShader(device, pixelShaderByteCode);
var layout = new InputLayout(device, ShaderSignature.GetInputSignature(vertexShaderByteCode), new[] {
new InputElement("POSITION", 0, SharpDX.DXGI.Format.R32G32B32A32_Float, 0, 0),
new InputElement("TEXCOORD", 0, SharpDX.DXGI.Format.R32G32_Float, 16, 0),
});
var vertices = SharpDX.Direct3D11.Buffer.Create(device, BindFlags.VertexBuffer, new[] {
// 3D coordinates UV Texture coordinates
abcd[0].X, abcd[0].Y, 0.0f, 1.0f, 0.0f, 1.0f, // Front
abcd[1].X, abcd[1].Y, 0.0f, 1.0f, 0.0f, 0.0f,
abcd[2].X, abcd[2].Y, 0.0f, 1.0f, 1.0f, 0.0f,
abcd[3].X, abcd[3].Y, 0.0f, 1.0f, 0.0f, 1.0f,
});
var contantBuffer = new SharpDX.Direct3D11.Buffer(device, Utilities.SizeOf<Matrix>(), ResourceUsage.Default, BindFlags.ConstantBuffer, CpuAccessFlags.None, ResourceOptionFlags.None, 0);
var context = device.ImmediateContext;
context.InputAssembler.InputLayout = layout;
context.InputAssembler.PrimitiveTopology = PrimitiveTopology.TriangleStrip;
context.InputAssembler.SetVertexBuffers(0, new VertexBufferBinding(vertices, Utilities.SizeOf<Vector4>() + Utilities.SizeOf<Vector2>(), 0));
context.VertexShader.SetConstantBuffer(0, contantBuffer);
context.VertexShader.Set(vertexShader);
context.Rasterizer.SetViewports(new Viewport(0, 0, _size.Width, _size.Height, 0.0f, 1.0f));
context.PixelShader.Set(pixelShader);
context.PixelShader.SetSampler(0, sampler);
context.PixelShader.SetShaderResource(0, textureView);
context.OutputMerger.SetTargets(renderView);
//
// Render 3D
//
context.ClearRenderTargetView(renderView, Colors.Transparent);
var worldViewProj = Matrix.Identity;// Matrix.Translation (_size.Width, _size.Height / 2, 0) * Matrix.Scaling (_size.Width / 2, _size.Height / 2, 1);
context.UpdateSubresource(ref worldViewProj, contantBuffer);
context.Draw(4, 0);
//
// Composite
//
//Create a render target
var renderSurface = renderTexture.QueryInterface<SharpDX.DXGI.Surface>();
var props = new BitmapProperties
{
PixelFormat = new SharpDX.Direct2D1.PixelFormat(Format.B8G8R8A8_UNorm,AlphaMode.Premultiplied)
};
var direct2DBitmap = new SharpDX.Direct2D1.Bitmap(_bitmapRenderTarget, renderSurface, props);
_wicRenderTarget.BeginDraw();
_wicRenderTarget.DrawBitmap(direct2DBitmap, 1.0f, SharpDX.Direct2D1.BitmapInterpolationMode.Linear);
_wicRenderTarget.EndDraw();
direct2DBitmap.Dispose();
}
private static SharpDX.Direct3D11.Texture2D CreateTexture2DFromBitmap(SharpDX.Direct3D11.Device device, SharpDX.WIC.BitmapSource bitmapSource)
{
// Allocate DataStream to receive the WIC image pixels
int stride = bitmapSource.Size.Width * 4;
using (var buffer = new SharpDX.DataStream(bitmapSource.Size.Height * stride, true, true))
{
// Copy the content of the WIC to the buffer
bitmapSource.CopyPixels(stride, buffer);
return new SharpDX.Direct3D11.Texture2D(device, new SharpDX.Direct3D11.Texture2DDescription()
{
Width = bitmapSource.Size.Width,
Height = bitmapSource.Size.Height,
ArraySize = 1,
BindFlags = SharpDX.Direct3D11.BindFlags.ShaderResource,
Usage = SharpDX.Direct3D11.ResourceUsage.Immutable,
CpuAccessFlags = SharpDX.Direct3D11.CpuAccessFlags.None,
Format = SharpDX.DXGI.Format.R8G8B8A8_UNorm,
MipLevels = 1,
OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.None,
SampleDescription = new SharpDX.DXGI.SampleDescription(1, 0),
}, new SharpDX.DataRectangle(buffer.DataPointer, stride));
}
}