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iris: Set 3DSTATE_WM::ForceThreadDispatchEnable

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The Vulkan driver only sets this if color writes are disabled, which
is more conservative - but would require us to inspect blend state.

(If color writes are enabled, we don't need to force anything, because
the internal signal is already correct.  But it shouldn't hurt to do so.)
This commit is contained in:
Kenneth Graunke 2019-02-11 14:22:50 -08:00
parent 27d751cdd8
commit d612cd1bf8
1 changed files with 4 additions and 0 deletions
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4
src/gallium/drivers/iris/iris_state.c
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@ -4407,6 +4407,10 @@ iris_upload_dirty_render_state(struct iris_context *ice,
wm.EarlyDepthStencilControl = EDSC_PREPS;
else if (wm_prog_data->has_side_effects)
wm.EarlyDepthStencilControl = EDSC_PSEXEC;
/* We could skip this bit if color writes are enabled. */
if (wm_prog_data->has_side_effects || wm_prog_data->uses_kill)
wm.ForceThreadDispatchEnable = ForceON;
}
iris_emit_merge(batch, cso->wm, dynamic_wm, ARRAY_SIZE(cso->wm));
}