/// <summary>
/// Копирует данные из неуправляемого ресурса ( Используемого в Компюте шейдере) в управляемый ресурс обычного шейдера.
/// </summary>
/// <param name="device">Устройстов используемое для отрисовки 3д</param>
/// <param name="srv">ShaderResourceView с данными тестуры в который будем копировать данные UnorderedAccessView.</param>
/// <param name="uav">UnorderedAccessView из которого будем брать данные</param>
public static void CopyUAVToSRV(SharpDX.Direct3D11.Device device, ref SharpDX.Direct3D11.ShaderResourceView srv, SharpDX.Direct3D11.UnorderedAccessView uav)
{
using (var t = srv.ResourceAs <Texture2D>())
{
using (var t2 = uav.ResourceAs <SharpDX.Direct3D11.Texture2D>())
{
// Copy the texture for the resource to the typeless texture
device.ImmediateContext.CopyResource(t2, t);
}
}
}
/// <summary>
/// Получает Bimap из ShaderResourceView (Ресурса с текстурой для шейдера).
/// </summary>
/// <param name="srv">Ресурс текстуры шейдера</param>
/// <param name="renderTarger"> 2d рендертаргет который будет рисовать этот битмап</param>
/// <returns>Битмапу с данными</returns>
public static SharpDX.Direct2D1.Bitmap GetBitmapFromSRV(SharpDX.Direct3D11.ShaderResourceView srv, RenderTarget renderTarger)
{
using (var texture = srv.ResourceAs <Texture2D>())
using (var surface = texture.QueryInterface <Surface>())
{
var bitmap = new SharpDX.Direct2D1.Bitmap(renderTarger, surface, new SharpDX.Direct2D1.BitmapProperties(new SharpDX.Direct2D1.PixelFormat(
Format.R8G8B8A8_UNorm,
SharpDX.Direct2D1.AlphaMode.Premultiplied)));
return(bitmap);
}
}
public void BeginBatch(ShaderResourceView texSRV)
{
Debug.Assert(_initialized);
_batchTexSRV = texSRV;
var tex = _batchTexSRV.ResourceAs<Texture2D>();
{
var texDesc = tex.Description;
_texWidth = texDesc.Width;
_texHeight = texDesc.Height;
}
_spriteList.Clear();
}
private void CopyUAVToSRV(ShaderResourceView srv, UnorderedAccessView uav)
{
var device = this.DeviceManager.Direct3DDevice;
using (var t = srv.ResourceAs<Texture2D>())
{
using (var t2 = uav.ResourceAs<Texture2D>())
{
// Copy the texture for the resource to the typeless texture
device.ImmediateContext.CopyResource(t, t2);
}
}
}
private UnorderedAccessView CopySRVToNewR32_UInt_UAV(ShaderResourceView srv)
{
UnorderedAccessView uav;
var device = this.DeviceManager.Direct3DDevice;
using (var t = srv.ResourceAs<Texture2D>())
{
// Resize the sourceTexture resource so that it is the correct size
var desc = t.Description;
desc.BindFlags = BindFlags.ShaderResource | BindFlags.UnorderedAccess;
desc.Format = Format.R8G8B8A8_Typeless;
using (var t2 = ToDispose(new Texture2D(device, desc)))
{
uav = ToDispose(new UnorderedAccessView(device, t2, new UnorderedAccessViewDescription
{
Format = Format.R32_UInt,
Dimension = UnorderedAccessViewDimension.Texture2D
}));
// Copy the texture for the resource to the typeless texture
device.ImmediateContext.CopyResource(t, t2);
}
}
return uav;
}
private void CopyR32_UInt_UAVToExistingSRV(UnorderedAccessView uav, ShaderResourceView srv)
{
var device = this.DeviceManager.Direct3DDevice;
int width, height;
using (var t = uav.ResourceAs<Texture2D>())
{
width = t.Description.Width;
height = t.Description.Height;
if (t.Description.Format != Format.R32_UInt)
throw new ArgumentException("The provided UAV does not use the format R32_Uint", "uav");
using (var t2 = srv.ResourceAs<Texture2D>())
{
if (t2.Description.Format != Format.R8G8B8A8_Typeless)
throw new ArgumentException("Currently only supporting R8G8B8A8_Typeless SRVs", "srv");
this.DeviceManager.Direct3DDevice.ImmediateContext.CopyResource(t, t2);
}
}
}
private void CheckSRVWidthHeight(ShaderResourceView srv, out int width, out int height)
{
using (var t = srv.ResourceAs<Texture2D>())
{
width = t.Description.Width;
height = t.Description.Height;
}
}