void CreateFontsTexture()
{
var io = ImGui.GetIO();
byte *pixels;
int width, height;
io.Fonts.GetTexDataAsRGBA32(out pixels, out width, out height);
var texDesc = new Texture2DDescription
{
Width = width,
Height = height,
MipLevels = 1,
ArraySize = 1,
Format = Format.R8G8B8A8_UNorm,
SampleDescription = new SampleDescription {
Count = 1
},
Usage = Vortice.Direct3D11.Usage.Default,
BindFlags = BindFlags.ShaderResource,
CpuAccessFlags = CpuAccessFlags.None
};
var subResource = new SubresourceData
{
DataPointer = (IntPtr)pixels,
Pitch = texDesc.Width * 4,
SlicePitch = 0
};
var texture = device.CreateTexture2D(texDesc, new[] { subResource });
var resViewDesc = new ShaderResourceViewDescription
{
Format = Format.R8G8B8A8_UNorm,
ViewDimension = ShaderResourceViewDimension.Texture2D,
Texture2D = new Texture2DShaderResourceView {
MipLevels = texDesc.MipLevels, MostDetailedMip = 0
}
};
fontTextureView = device.CreateShaderResourceView(texture, resViewDesc);
texture.Release();
io.Fonts.TexID = RegisterTexture(fontTextureView);
var samplerDesc = new SamplerDescription
{
Filter = Filter.MinMagMipLinear,
AddressU = TextureAddressMode.Wrap,
AddressV = TextureAddressMode.Wrap,
AddressW = TextureAddressMode.Wrap,
MipLODBias = 0f,
ComparisonFunction = ComparisonFunction.Always,
MinLOD = 0f,
MaxLOD = 0f
};
fontSampler = device.CreateSamplerState(samplerDesc);
}
private void StartDesktopDuplicator(int adapterId, int outputId)
{
var adapter = factory.GetAdapter1(adapterId);
D3D11.D3D11CreateDevice(adapter, DriverType.Unknown, DeviceCreationFlags.None, s_featureLevels, out device);
var output = adapter.GetOutput(outputId);
var output1 = output.QueryInterface <IDXGIOutput1>();
var bounds = output1.Description.DesktopCoordinates;
var width = bounds.Right - bounds.Left;
var height = bounds.Bottom - bounds.Top;
var textureDesc = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.Read,
BindFlags = BindFlags.None,
Format = Format.B8G8R8A8_UNorm,
Width = width / 2,
Height = height / 2,
OptionFlags = ResourceOptionFlags.None,
MipLevels = 1,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = Usage.Staging
};
stagingTexture = device.CreateTexture2D(textureDesc);
var smallerTextureDesc = new Texture2DDescription
{
CpuAccessFlags = CpuAccessFlags.None,
BindFlags = BindFlags.RenderTarget | BindFlags.ShaderResource,
Format = Format.B8G8R8A8_UNorm,
Width = width,
Height = height,
OptionFlags = ResourceOptionFlags.GenerateMips,
MipLevels = 4,
ArraySize = 1,
SampleDescription = { Count = 1, Quality = 0 },
Usage = Usage.Default
};
smallerTexture = device.CreateTexture2D(smallerTextureDesc);
smallerTextureView = device.CreateShaderResourceView(smallerTexture);
duplication = output1.DuplicateOutput(device);
}
public static IComObject <ID3D11ShaderResourceView> CreateShaderResourceView(this ID3D11Device device, ID3D11Resource resource, D3D11_SHADER_RESOURCE_VIEW_DESC?desc = null)
{
if (device == null)
{
throw new ArgumentNullException(nameof(device));
}
if (resource == null)
{
throw new ArgumentNullException(nameof(resource));
}
using (var mem = new ComMemory(desc))
{
device.CreateShaderResourceView(resource, mem.Pointer, out var view).ThrowOnError();
return(new ComObject <ID3D11ShaderResourceView>(view));
}
}
public D3D11TextureView(D3D11GraphicsDevice gd, ref TextureViewDescription description)
: base(ref description)
{
ID3D11Device device = gd.Device;
D3D11Texture d3dTex = Util.AssertSubtype <Texture, D3D11Texture>(description.Target);
ShaderResourceViewDescription srvDesc = D3D11Util.GetSrvDesc(
d3dTex,
description.BaseMipLevel,
description.MipLevels,
description.BaseArrayLayer,
description.ArrayLayers,
Format);
ShaderResourceView = device.CreateShaderResourceView(d3dTex.DeviceTexture, srvDesc);
if ((d3dTex.Usage & TextureUsage.Storage) == TextureUsage.Storage)
{
UnorderedAccessViewDescription uavDesc = new UnorderedAccessViewDescription();
uavDesc.Format = D3D11Formats.GetViewFormat(d3dTex.DxgiFormat);
if ((d3dTex.Usage & TextureUsage.Cubemap) == TextureUsage.Cubemap)
{
throw new NotSupportedException();
}
else if (d3dTex.Depth == 1)
{
if (d3dTex.ArrayLayers == 1)
{
if (d3dTex.Type == TextureType.Texture1D)
{
uavDesc.ViewDimension = UnorderedAccessViewDimension.Texture1D;
uavDesc.Texture1D.MipSlice = (int)description.BaseMipLevel;
}
else
{
uavDesc.ViewDimension = UnorderedAccessViewDimension.Texture2D;
uavDesc.Texture2D.MipSlice = (int)description.BaseMipLevel;
}
}
else
{
if (d3dTex.Type == TextureType.Texture1D)
{
uavDesc.ViewDimension = UnorderedAccessViewDimension.Texture1DArray;
uavDesc.Texture1DArray.MipSlice = (int)description.BaseMipLevel;
uavDesc.Texture1DArray.FirstArraySlice = (int)description.BaseArrayLayer;
uavDesc.Texture1DArray.ArraySize = (int)description.ArrayLayers;
}
else
{
uavDesc.ViewDimension = UnorderedAccessViewDimension.Texture2DArray;
uavDesc.Texture2DArray.MipSlice = (int)description.BaseMipLevel;
uavDesc.Texture2DArray.FirstArraySlice = (int)description.BaseArrayLayer;
uavDesc.Texture2DArray.ArraySize = (int)description.ArrayLayers;
}
}
}
else
{
uavDesc.ViewDimension = UnorderedAccessViewDimension.Texture3D;
uavDesc.Texture3D.MipSlice = (int)description.BaseMipLevel;
// Map the entire range of the 3D texture.
uavDesc.Texture3D.FirstWSlice = 0;
uavDesc.Texture3D.WSize = (int)d3dTex.Depth;
}
UnorderedAccessView = device.CreateUnorderedAccessView(d3dTex.DeviceTexture, uavDesc);
}
}