X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fintel%2Fcompiler%2Fbrw_vec4_vs_visitor.cpp;h=ab351dbd39be215332766a0dca1418c4c833b0ef;hb=HEAD;hp=5aa1b9ac0b20f4c47fc7253353b49339bab87bb4;hpb=14781e21227d036b8875bbdde9f343a8e73ceeb6;p=mesa.git

diff --git a/src/intel/compiler/brw_vec4_vs_visitor.cpp b/src/intel/compiler/brw_vec4_vs_visitor.cpp
index 5aa1b9ac0b2..ab351dbd39b 100644
--- a/src/intel/compiler/brw_vec4_vs_visitor.cpp
+++ b/src/intel/compiler/brw_vec4_vs_visitor.cpp
@@ -86,78 +86,9 @@ vec4_vs_visitor::emit_urb_slot(dst_reg reg, int varying)
 }
 
 
-void
-vec4_vs_visitor::emit_clip_distances(dst_reg reg, int offset)
-{
-   /* From the GLSL 1.30 spec, section 7.1 (Vertex Shader Special Variables):
-    *
-    *     "If a linked set of shaders forming the vertex stage contains no
-    *     static write to gl_ClipVertex or gl_ClipDistance, but the
-    *     application has requested clipping against user clip planes through
-    *     the API, then the coordinate written to gl_Position is used for
-    *     comparison against the user clip planes."
-    *
-    * This function is only called if the shader didn't write to
-    * gl_ClipDistance.  Accordingly, we use gl_ClipVertex to perform clipping
-    * if the user wrote to it; otherwise we use gl_Position.
-    */
-   gl_varying_slot clip_vertex = VARYING_SLOT_CLIP_VERTEX;
-   if (!(prog_data->vue_map.slots_valid & VARYING_BIT_CLIP_VERTEX)) {
-      clip_vertex = VARYING_SLOT_POS;
-   }
-
-   for (int i = 0; i + offset < key->nr_userclip_plane_consts && i < 4;
-        ++i) {
-      reg.writemask = 1 << i;
-      emit(DP4(reg,
-               src_reg(output_reg[clip_vertex][0]),
-               src_reg(this->userplane[i + offset])));
-   }
-}
-
-
-void
-vec4_vs_visitor::setup_uniform_clipplane_values()
-{
-   if (key->nr_userclip_plane_consts == 0)
-      return;
-
-   assert(stage_prog_data->nr_params == (unsigned)this->uniforms * 4);
-   brw_stage_prog_data_add_params(stage_prog_data,
-                                  key->nr_userclip_plane_consts * 4);
-
-   for (int i = 0; i < key->nr_userclip_plane_consts; ++i) {
-      this->userplane[i] = dst_reg(UNIFORM, this->uniforms);
-      this->userplane[i].type = BRW_REGISTER_TYPE_F;
-      for (int j = 0; j < 4; ++j) {
-         stage_prog_data->param[this->uniforms * 4 + j] =
-            BRW_PARAM_BUILTIN_CLIP_PLANE(i, j);
-      }
-      ++this->uniforms;
-   }
-}
-
-
 void
 vec4_vs_visitor::emit_thread_end()
 {
-   setup_uniform_clipplane_values();
-
-   /* Lower legacy ff and ClipVertex clipping to clip distances */
-   if (key->nr_userclip_plane_consts > 0) {
-      current_annotation = "user clip distances";
-
-      output_reg[VARYING_SLOT_CLIP_DIST0][0] =
-         dst_reg(this, glsl_type::vec4_type);
-      output_reg[VARYING_SLOT_CLIP_DIST1][0] =
-         dst_reg(this, glsl_type::vec4_type);
-      output_num_components[VARYING_SLOT_CLIP_DIST0][0] = 4;
-      output_num_components[VARYING_SLOT_CLIP_DIST1][0] = 4;
-
-      emit_clip_distances(output_reg[VARYING_SLOT_CLIP_DIST0][0], 0);
-      emit_clip_distances(output_reg[VARYING_SLOT_CLIP_DIST1][0], 4);
-   }
-
    /* For VS, we always end the thread by emitting a single vertex.
     * emit_urb_write_opcode() will take care of setting the eot flag on the
     * SEND instruction.