private void CreateStaging()
{
if (_staging == null)
{
D3D.Texture3DDescription oDesc = _texture3D.Description;
D3D.Texture3DDescription desc = new D3D.Texture3DDescription();
desc.BindFlags = D3D.BindFlags.None;
desc.CpuAccessFlags = D3D.CpuAccessFlags.Write | D3D.CpuAccessFlags.Read;
desc.Format = D3D10Helper.ToD3DSurfaceFormat(base.Format);
desc.Height = base.Height;
desc.Width = base.Width;
desc.Depth = base.Depth;
desc.MipLevels = _mipCount;
desc.Usage = D3D.ResourceUsage.Staging;
_staging = new D3D.Texture3D(_graphicsDevice, desc);
//Add to tracker
_renderer.Resources.AddTrackedObject(_staging.ComPointer, this);
}
}
/// <summary>
/// Creates a new instance of <see cref="D3D10Texture3DImplementation"/>.
/// </summary>
/// <param name="renderer">The D3D0 renderer.</param>
/// <param name="width">The width of the texture.</param>
/// <param name="height">The height of the texture.</param>
/// <param name="depth">The depth of the texture.</param>
/// <param name="genMipMaps">True if mip map subresources should be generated or not.</param>
/// <param name="format">The surface format.</param>
/// <param name="data">The initial data for the first mip map.</param>
internal D3D10Texture3DImplementation(D3D10Renderer renderer, int width, int height, int depth, bool genMipMaps, SurfaceFormat format, DataBuffer data)
: base(width, height, depth, format)
{
//Set common properties
_renderer = renderer;
_graphicsDevice = _renderer.GraphicsDevice;
//Do we want to generate mip maps, and do we have the data to do so? (if not, cancel mip map generation)
bool canGenMipmaps = (genMipMaps && (data != null));
D3D.Texture3DDescription descTex = new D3D.Texture3DDescription();
descTex.Width = width;
descTex.Height = height;
descTex.Depth = depth;
descTex.Usage = _usage = D3D.ResourceUsage.Default;
descTex.CpuAccessFlags = D3D.CpuAccessFlags.None;
descTex.Format = D3D10Helper.ToD3DSurfaceFormat(format);
descTex.MipLevels = (genMipMaps) ? 0 : 1;
//Set mip map generation params
if (canGenMipmaps)
{
descTex.BindFlags = D3D.BindFlags.ShaderResource | D3D.BindFlags.RenderTarget;
descTex.OptionFlags = D3D.ResourceOptionFlags.GenerateMipMaps;
}
else
{
descTex.BindFlags = D3D.BindFlags.ShaderResource;
descTex.OptionFlags = D3D.ResourceOptionFlags.None;
}
//Create the texture and shader view
_texture3D = new D3D.Texture3D(_graphicsDevice, descTex);
_shaderResourceView = new D3D.ShaderResourceView(_graphicsDevice, _texture3D);
//Add to tracker
_renderer.Resources.AddTrackedObject(_texture3D.ComPointer, this);
_renderer.Resources.AddTrackedObject(_shaderResourceView.ComPointer, this);
//Set the final mip count
_mipCount = _texture3D.Description.MipLevels;
//Now set the initial data if its present
if (data != null)
{
try {
this.SetData <byte>(data.ByteDataCopy, 0, 0, width, 0, height, 0, depth, 0, data.ElementSizeInBytes * data.Length);
if (genMipMaps)
{
_graphicsDevice.GenerateMips(_shaderResourceView);
}
//Dispose of the staging texture
if (_staging != null)
{
_staging.Dispose();
_staging = null;
}
} catch (Exception e) {
Dispose();
throw new TeslaException("Error setting Texture data.", e);
}
}
}