41cd2ae2c8
The 'format' member of CoglTexture2DSliced is returned by cogl_texture_get_format. All of the other backends return the internal format of the GL texture in this case. However the sliced backend was returning the format of the image data used to create the texture. It doesn't make any sense to retain this information because it doesn't necessarily indicate the format of the actual texture. This patch changes it to store the internal format instead.