i965: Move SOL PSIZ hacks from draw time to link time.

We can just update the gl_transform_feedback_info fields at link time
to make the VUE header fields have the right location and component.
Then we don't need to handle them specially at draw time, which is
expensive.

Reviewed-by: Rafael Antognolli <[email protected]>

1 files changed, 1 insertions, 12 deletions

diff --git a/src/intel/compiler/gen6_gs_visitor.cpp b/src/intel/compiler/gen6_gs_visitor.cpp
index fe9f834f0ce..66c69fb058f 100644
--- a/src/intel/compiler/gen6_gs_visitor.cpp
+++ b/src/intel/compiler/gen6_gs_visitor.cpp
@@ -687,18 +687,7 @@ gen6_gs_visitor::xfb_program(unsigned vertex, unsigned num_verts)
          emit(MOV(dst_reg(this->vertex_output_offset), brw_imm_d(offset)));
          memcpy(data.reladdr, &this->vertex_output_offset, sizeof(src_reg));
          data.type = output_reg[varying][0].type;
-
-         /* PSIZ, LAYER and VIEWPORT are packed in different channels of the
-          * same slot, so make sure we write the appropriate channel
-          */
-         if (varying == VARYING_SLOT_PSIZ)
-            data.swizzle = BRW_SWIZZLE_WWWW;
-         else if (varying == VARYING_SLOT_LAYER)
-            data.swizzle = BRW_SWIZZLE_YYYY;
-         else if (varying == VARYING_SLOT_VIEWPORT)
-            data.swizzle = BRW_SWIZZLE_ZZZZ;
-         else
-            data.swizzle = gs_prog_data->transform_feedback_swizzles[binding];
+         data.swizzle = gs_prog_data->transform_feedback_swizzles[binding];
 
          /* Write data */
          inst = emit(GS_OPCODE_SVB_WRITE, mrf_reg, data, sol_temp);