public static ReadTexture cretaeReadTexture(NativeStructs.D3D11_TEXTURE2D_DESC a_TextureDesc)
{
a_TextureDesc.BindFlags = 0;
a_TextureDesc.MiscFlags = 0;
a_TextureDesc.CPUAccessFlags = NativeStructs.D3D11_CPU_ACCESS_READ | NativeStructs.D3D11_CPU_ACCESS_WRITE;;
a_TextureDesc.Usage = NativeStructs.D3D11_USAGE_STAGING;
ReadTexture l_return = new ReadTexture();
l_return.m_read_texture = Direct3D11Device.Instance.Device.CreateTexture2D(a_TextureDesc);
using (var lImmediateContext = Direct3D11Device.Instance.Device.GetImmediateContext())
{
D3D11_MAPPED_SUBRESOURCE resource = new D3D11_MAPPED_SUBRESOURCE();
var subresource = D3D11DeviceContext.D3D11CalcSubresource(0, 0, 0);
var lres = lImmediateContext.Map(l_return.m_read_texture.getD3D11Resource(), subresource, D3D11DeviceContext.D3D11_MAP_READ_WRITE, 0, resource);
l_return.m_BufferLength = resource.RowPitch * a_TextureDesc.Height;
lImmediateContext.Unmap(l_return.m_read_texture.getD3D11Resource(), subresource);
}
return(l_return);
}
public NativeStructs.D3D11_TEXTURE2D_DESC GetDesc()
{
NativeStructs.D3D11_TEXTURE2D_DESC l_resturn = new NativeStructs.D3D11_TEXTURE2D_DESC();
if (m_shared_texture != null)
{
l_resturn = m_shared_texture.GetDesc();
}
return(l_resturn);
}
public void init(uint a_Width, uint a_Height)
{
NativeStructs.D3D11_TEXTURE2D_DESC lTextureDesc = new NativeStructs.D3D11_TEXTURE2D_DESC();
lTextureDesc.Width = a_Width;
lTextureDesc.Height = a_Height;
lTextureDesc.Format = NativeStructs.DXGI_FORMAT_B8G8R8X8_UNORM;
lTextureDesc.ArraySize = 1;
lTextureDesc.BindFlags = NativeStructs.D3D11_BIND_RENDER_TARGET | NativeStructs.D3D11_BIND_SHADER_RESOURCE;
lTextureDesc.MiscFlags = NativeStructs.D3D11_RESOURCE_MISC_SHARED;
lTextureDesc.SampleDesc = new NativeStructs.DXGI_SAMPLE_DESC();
lTextureDesc.SampleDesc.Count = 1;
lTextureDesc.SampleDesc.Quality = 0;
lTextureDesc.MipLevels = 1;
lTextureDesc.CPUAccessFlags = 0;
lTextureDesc.Usage = NativeStructs.D3D11_USAGE_DEFAULT;
if (m_target_texture != null)
{
m_target_texture.Dispose();
}
m_target_texture = null;
m_target_texture = Direct3D11Device.Instance.Device.CreateTexture2D(lTextureDesc);
m_resource = m_target_texture.getDXGIResource();
m_shared_handler = m_resource.GetSharedHandle();
}
