/// <summary>
/// Adds the provided texture to the current manager
/// </summary>
/// <param name="texture">The tiled texture that needs to be managed</param>
/// <param name="filePath">The filepath from where to load the texture data</param>
/// <returns>The shader resource view for the created residency texture</returns>
public SharpDX.Toolkit.Graphics.Texture2DBase ManageTexture(SharpDX.Toolkit.Graphics.TextureCube texture, string filePath)
{
// assume the diffuse texture has the BC1_Unorm format - store a path to it
if (texture.Description.Format == Format.BC1_UNorm)
{
_diffuseFilepath = filePath;
}
var resource = new ManagedTiledResource {
Texture = texture
};
var subresourceTilings = texture.Description.MipLevels * texture.Description.ArraySize;
resource.SubresourceTilings = new SharpDX.Direct3D11.SubResourceTiling[subresourceTilings];
var device2 = _graphicsDeviceManager.GetDevice2();
device2.GetResourceTiling(texture,
out resource.TotalTiles,
out resource.PackedMipDescription,
out resource.TileShape,
ref subresourceTilings,
0,
resource.SubresourceTilings);
if (subresourceTilings != texture.Description.MipLevels * texture.Description.ArraySize)
{
throw new ApplicationException("Unexpected value - subresourceTilings has changed");
}
resource.Loader = new TileLoader(filePath, resource.SubresourceTilings, false);
var device = _graphicsDeviceManager.GraphicsDevice;
var tiling = resource.SubresourceTilings[0];
var size = Math.Max(tiling.WidthInTiles, tiling.HeightInTiles);
var description = new SharpDX.Direct3D11.Texture2DDescription
{
Width = size,
Height = size,
MipLevels = 1,
ArraySize = 6,
BindFlags = SharpDX.Direct3D11.BindFlags.ShaderResource,
Format = Format.R8_UNorm,
SampleDescription = new SampleDescription(1, 0),
Usage = SharpDX.Direct3D11.ResourceUsage.Default,
OptionFlags = SharpDX.Direct3D11.ResourceOptionFlags.TextureCube
};
resource.ResidencyTexture = ToDispose(SharpDX.Toolkit.Graphics.Texture2D.New(device, description));
for (var face = 0; face < 6; face++)
{
resource.Residency[face] = new byte[tiling.WidthInTiles * tiling.HeightInTiles];
Set(resource.Residency[face], (byte)0xff);
}
_managedTiledResources.Add(resource);
return(resource.ResidencyTexture);
}
/// <summary>
/// Gets an instance of the DirectX 11.2 device context
/// </summary>
/// <param name="manager">The current GraphicsDeviceManager</param>
/// <returns>DirectX 11.2 DeviceContext instance</returns>
public static DeviceContext2 GetContext2(this GraphicsDeviceManager manager)
{
return(manager.GetDevice2().ImmediateContext2);
}
