i965/vs: Do VUE writes using the MRF file instead of hardware register.
We'll only do compute-to-MRF on accesses to this file.
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0502db1eab
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@ -1831,13 +1831,15 @@ vec4_visitor::emit_clip_distances(struct brw_reg reg, int offset)
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void
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void
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vec4_visitor::emit_urb_slot(int mrf, int vert_result)
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vec4_visitor::emit_urb_slot(int mrf, int vert_result)
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{
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{
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struct brw_reg reg = brw_message_reg(mrf);
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struct brw_reg hw_reg = brw_message_reg(mrf);
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dst_reg reg = dst_reg(MRF, mrf);
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reg.type = BRW_REGISTER_TYPE_F;
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switch (vert_result) {
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switch (vert_result) {
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case VERT_RESULT_PSIZ:
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case VERT_RESULT_PSIZ:
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/* PSIZ is always in slot 0, and is coupled with other flags. */
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/* PSIZ is always in slot 0, and is coupled with other flags. */
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current_annotation = "indices, point width, clip flags";
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current_annotation = "indices, point width, clip flags";
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emit_psiz_and_flags(reg);
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emit_psiz_and_flags(hw_reg);
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break;
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break;
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case BRW_VERT_RESULT_NDC:
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case BRW_VERT_RESULT_NDC:
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current_annotation = "NDC";
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current_annotation = "NDC";
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@ -1850,11 +1852,11 @@ vec4_visitor::emit_urb_slot(int mrf, int vert_result)
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break;
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break;
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case BRW_VERT_RESULT_CLIP0:
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case BRW_VERT_RESULT_CLIP0:
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current_annotation = "user clip distances";
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current_annotation = "user clip distances";
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emit_clip_distances(reg, 0);
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emit_clip_distances(hw_reg, 0);
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break;
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break;
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case BRW_VERT_RESULT_CLIP1:
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case BRW_VERT_RESULT_CLIP1:
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current_annotation = "user clip distances";
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current_annotation = "user clip distances";
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emit_clip_distances(reg, 4);
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emit_clip_distances(hw_reg, 4);
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break;
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break;
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case BRW_VERT_RESULT_PAD:
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case BRW_VERT_RESULT_PAD:
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/* No need to write to this slot */
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/* No need to write to this slot */
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