/// <summary>
/// Creates a texture array.
/// </summary>
/// <param name="array">The array.</param>
/// <param name="request">The request.</param>
private void Create(TexImage array, ArrayCreationRequest request)
{
array.Width = request.TextureList[0].Width;
array.Height = request.TextureList[0].Height;
array.Depth = request.TextureList[0].Depth;
array.RowPitch = request.TextureList[0].RowPitch;
array.SlicePitch = request.TextureList[0].SlicePitch;
array.Format = request.TextureList[0].Format;
array.FaceCount = request.TextureList[0].FaceCount;
array.MipmapCount = request.TextureList[0].MipmapCount;
array.DisposingLibrary = this;
array.Name = request.TextureList[0].Name + "_array";
array.ArraySize = request.TextureList.Count;
array.SubImageArray = new TexImage.SubImage[request.TextureList.Count * request.TextureList[0].SubImageArray.Length];
array.DataSize = 0;
array.DataSize = request.TextureList[0].DataSize * array.ArraySize;
array.Data = Marshal.AllocHGlobal(array.DataSize);
int offset1, offset2;
long arrayData = array.Data.ToInt64();
long currentData;
IntPtr buffer;
TexImage current;
offset1 = 0;
for (int i = 0; i < request.TextureList.Count; ++i)
{
current = request.TextureList[i];
buffer = new IntPtr(arrayData + offset1);
offset1 += current.DataSize;
Utilities.CopyMemory(buffer, current.Data, current.DataSize);
offset2 = 0;
currentData = buffer.ToInt64();
for (int j = 0; j < current.SubImageArray.Length; ++j)
{
array.SubImageArray[i * current.SubImageArray.Length + j] = current.SubImageArray[j];
array.SubImageArray[i * current.SubImageArray.Length + j].Data = new IntPtr(currentData + offset2);
offset2 += current.SubImageArray[j].DataSize;
}
}
}
/// <summary>
/// Creates a texture array with the given TexImage.
/// </summary>
/// <param name="textureList">The texture list.</param>
/// <returns>An instance of <see cref="TexImage"/> corresponding containing the texture array.</returns>
/// <exception cref="TextureToolsException">
/// No available library could create the array.
/// or
/// The textures must all have the same size and format to be in a texture array.
/// </exception>
public TexImage CreateTextureArray(List<TexImage> textureList)
{
var array = new TexImage();
var request = new ArrayCreationRequest(textureList);
ITexLibrary library = FindLibrary(array, request);
if (library == null)
{
Log.Error("No available library could create the array.");
throw new TextureToolsException("No available library could create the array.");
}
int width = textureList[0].Width;
int height = textureList[0].Height;
int depth = textureList[0].Depth;
array.Format = textureList[0].Format;
foreach (var texture in textureList)
{
texture.Update();
if (texture.Width != width || texture.Height != height || texture.Depth != depth || texture.Format != array.Format)
{
Log.Error("The textures must all have the same size and format to be in a texture array.");
throw new TextureToolsException("The textures must all have the same size and format to be in a texture array.");
}
}
ExecuteRequest(array, request);
return array;
}
/// <summary>
/// Creates a texture array.
/// </summary>
/// <param name="array">The array.</param>
/// <param name="request">The request.</param>
private void CreateArray(TexImage array, ArrayCreationRequest request)
{
Log.Info("Creating texture array ...");
Create(array, request);
}
