示例#1
0
    /// <summary>
    /// Converts the specified texture to another format.
    /// </summary>
    /// <param name="format">The desired texture format.</param>
    /// <returns>
    /// The texture using <paramref name="format" />. Does nothing (returns <c>this</c>) if texture
    /// already has the desired format.
    /// </returns>
    /// <exception cref="NotSupportedException">
    /// Texture conversion to the specified format is not supported.
    /// </exception>
    public Texture ConvertTo(DataFormat format)
    {
      var srcFormat = Description.Format;
      var dstFormat = format;

      if (srcFormat == dstFormat)
        return this;

      // ----- Direct conversion:
      // srcFormat -> dstFormat
      if (TextureHelper.CanConvert(srcFormat, dstFormat))
      {
        var description = Description;
        description.Format = dstFormat;

        var texture = new Texture(description);

#if SINGLE_THREADED
        for (int i = 0; i < Images.Count; i++)
#else
        Parallel.For(0, Images.Count, i =>
#endif
        {
          TextureHelper.Convert(Images[i], texture.Images[i]);
        }
#if !SINGLE_THREADED
        );
#endif

        return texture;
      }

      // ----- Conversion using intermediate formats:
      // srcFormat -> R32G32B32A32_FLOAT -> dstFormat
      if (TextureHelper.CanConvert(srcFormat, DataFormat.R32G32B32A32_FLOAT)
          && TextureHelper.CanConvert(DataFormat.R32G32B32A32_FLOAT, dstFormat))
      {
        var texture = ConvertTo(DataFormat.R32G32B32A32_FLOAT);
        return texture.ConvertTo(dstFormat);
      }

      // srcFormat -> R8G8B8A8_UNORM -> dstFormat
      if (TextureHelper.CanConvert(srcFormat, DataFormat.R8G8B8A8_UNORM)
          && TextureHelper.CanConvert(DataFormat.R8G8B8A8_UNORM, dstFormat))
      {
        var texture = ConvertTo(DataFormat.R8G8B8A8_UNORM);
        return texture.ConvertTo(dstFormat);
      }

      throw new NotSupportedException(string.Format("Texture format conversion from {0} to {1} is not supported.", srcFormat, dstFormat));
    }
示例#2
0
    /// <summary>
    /// Determines whether conversion to the specified texture format is supported.
    /// </summary>
    /// <param name="format">The desired texture format.</param>
    /// <returns>
    /// <see langword="true"/> if the conversion from the current format to <paramref name="format"/>
    /// is supported; otherwise, <see langword="false"/>.
    /// </returns>
    public bool CanConvertTo(DataFormat format)
    {
      var srcFormat = Description.Format;
      var dstFormat = format;

      // srcFormat -> dstFormat
      if (TextureHelper.CanConvert(srcFormat, dstFormat))
        return true;

      // srcFormat -> R32G32B32A32_FLOAT -> dstFormat
      if (TextureHelper.CanConvert(srcFormat, DataFormat.R32G32B32A32_FLOAT)
          && TextureHelper.CanConvert(DataFormat.R32G32B32A32_FLOAT, dstFormat))
        return true;

      // srcFormat -> R8G8B8A8_UNORM -> dstFormat
      if (TextureHelper.CanConvert(srcFormat, DataFormat.R8G8B8A8_UNORM)
          && TextureHelper.CanConvert(DataFormat.R8G8B8A8_UNORM, dstFormat))
        return true;

      return false;
    }