7f8ff686b7
The 'varying fetch' pp instruction deals only with coordinates, and 'texture fetch' deals only with the sampler index. Previously it was not possible to clearly map ppir_op_load_coords and ppir_op_load_texture to pp instructions as the source coordinates were kept in the ppir_op_load_texture node, making this harder to maintain. The refactor is made with the attempt to clearly map ppir_op_load_coords to the 'varying fetch' and ppir_op_load_texture to the 'texture fetch'. The coordinates are still temporarily kept in the ppir_op_load_texture node as nir has both sampler and coordinates in a single instruction and it is only possible to output one ppir node during emit. But now after lowering, the sources are transferred to the (always) created ppir_op_load_coords node, and it should be possible to directly map them to their pp instructions from there onwards. Signed-off-by: Erico Nunes <nunes.erico@gmail.com> Reviewed-by: Qiang Yu <yuq825@gmail.com>
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