Neil Roberts 6ddf81c8dc Pass the sampler object to snippet hooks on the texture_hookup
The snippet hook COGL_SNIPPET_HOOK_TEXTURE_LOOKUP now gets passed an
extra variable called cogl_sampler which is the sampler attached to
this layer. For example this will be useful when implementing the blur
effect in Clutter so that it can make the texture hook for that layer
sample the texture multiple times.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2012-02-13 17:29:28 +00:00
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