Added Texture.GetPixels<T>(srcRect, slice, mip, dstData, dstFormat, dstStride) Fix reading non-zero slice from 3D texture (#1118) CopyToStagingResource: only use 1 mip level / array slice in staging texture CopyToStagingResource: fix copy destination offset GetPixels: add dstSize parameter instead of dstStride Add Texture.GetPixels3D<T>() Texture.GetPixels( int mip ) now gets everything for array / volume textures Added Texture.GetPixel3D() to complement Texture.GetPixel() GetPixels: fix nativeDstRect size GetPixels: stride fixes