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authorKenneth Graunke <[email protected]>2015-06-26 15:05:13 -0700
committerKenneth Graunke <[email protected]>2015-06-28 19:44:34 -0700
commit19a0ba130fd0d0f3b86181a8d05cf5391420360d (patch)
tree79c8500386cfb47307342cd4251492890e640b7a /src/gallium
parent17e8fca626c908dcbedabf57ce175113840e65c2 (diff)
i965/vs: Move compute_clip_distance() out of emit_urb_writes().
Legacy user clipping (using gl_Position or gl_ClipVertex) is handled by turning those into the modern gl_ClipDistance equivalents. This is unnecessary in Core Profile: if user clipping is enabled, but the shader doesn't write the corresponding gl_ClipDistance entry, results are undefined. Hence, it is also unnecessary for geometry shaders. This patch moves the call up to run_vs(). This is equivalent for VS, but removes the need to pass clip distances into emit_urb_writes(). Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Jason Ekstrand <[email protected]> Reviewed-by: Chris Forbes <[email protected]>
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