[Mesa-dev] [PATCH 3/3] i965/fs: Implement texelFetch() on Gen4.

[Eric Anholt]

On Thu,  8 Sep 2011 15:49:23 -0700, Kenneth Graunke <kenneth at whitecape.org> wrote:
> +      /* Initialize the rest of u/v/r with 0.0, for safety */
> +      for (int i = ir->coordinate->type->vector_elements; i < 3; i++) {
> +	 emit(BRW_OPCODE_MOV, fs_reg(MRF, base_mrf + mlen + i * 2), fs_reg(0.0f));
> +      }
> +

Didn't we decide that it was not just "for safety", but that that text
about out of bounds returning 0 was what made that code required?

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