C++ (Cpp) gs_end_primitive Examples

Example #1

File: brw_vec4_gs_nir.cpp Project: dumbbell/mesa

void
vec4_gs_visitor::nir_emit_intrinsic(nir_intrinsic_instr *instr)
{
   dst_reg dest;
   src_reg src;

   switch (instr->intrinsic) {
   case nir_intrinsic_emit_vertex: {
      int stream_id = instr->const_index[0];
      gs_emit_vertex(stream_id);
      break;
   }

   case nir_intrinsic_end_primitive:
      gs_end_primitive();
      break;

   case nir_intrinsic_load_invocation_id: {
      src_reg invocation_id =
         src_reg(nir_system_values[SYSTEM_VALUE_INVOCATION_ID]);
      assert(invocation_id.file != BAD_FILE);
      dest = get_nir_dest(instr->dest, invocation_id.type);
      emit(MOV(dest, invocation_id));
      break;
   }

   default:
      vec4_visitor::nir_emit_intrinsic(instr);
   }
}

Example #2

File: brw_vec4_gs_nir.cpp Project: BNieuwenhuizen/mesa

void
vec4_gs_visitor::nir_emit_intrinsic(nir_intrinsic_instr *instr)
{
   dst_reg dest;
   src_reg src;

   switch (instr->intrinsic) {
   case nir_intrinsic_load_per_vertex_input: {
      /* The EmitNoIndirectInput flag guarantees our vertex index will
       * be constant.  We should handle indirects someday.
       */
      nir_const_value *vertex = nir_src_as_const_value(instr->src[0]);
      nir_const_value *offset = nir_src_as_const_value(instr->src[1]);

      /* Make up a type...we have no way of knowing... */
      const glsl_type *const type = glsl_type::ivec(instr->num_components);

      src = src_reg(ATTR, BRW_VARYING_SLOT_COUNT * vertex->u32[0] +
                          instr->const_index[0] + offset->u32[0],
                    type);
      /* gl_PointSize is passed in the .w component of the VUE header */
      if (instr->const_index[0] == VARYING_SLOT_PSIZ)
         src.swizzle = BRW_SWIZZLE_WWWW;

      dest = get_nir_dest(instr->dest, src.type);
      dest.writemask = brw_writemask_for_size(instr->num_components);
      emit(MOV(dest, src));
      break;
   }

   case nir_intrinsic_load_input:
      unreachable("nir_lower_io should have produced per_vertex intrinsics");

   case nir_intrinsic_emit_vertex_with_counter: {
      this->vertex_count =
         retype(get_nir_src(instr->src[0], 1), BRW_REGISTER_TYPE_UD);
      int stream_id = instr->const_index[0];
      gs_emit_vertex(stream_id);
      break;
   }

   case nir_intrinsic_end_primitive_with_counter:
      this->vertex_count =
         retype(get_nir_src(instr->src[0], 1), BRW_REGISTER_TYPE_UD);
      gs_end_primitive();
      break;

   case nir_intrinsic_set_vertex_count:
      this->vertex_count =
         retype(get_nir_src(instr->src[0], 1), BRW_REGISTER_TYPE_UD);
      break;

   case nir_intrinsic_load_primitive_id:
      assert(gs_prog_data->include_primitive_id);
      dest = get_nir_dest(instr->dest, BRW_REGISTER_TYPE_D);
      emit(MOV(dest, retype(brw_vec4_grf(1, 0), BRW_REGISTER_TYPE_D)));
      break;

   case nir_intrinsic_load_invocation_id: {
      src_reg invocation_id =
         src_reg(nir_system_values[SYSTEM_VALUE_INVOCATION_ID]);
      assert(invocation_id.file != BAD_FILE);
      dest = get_nir_dest(instr->dest, invocation_id.type);
      emit(MOV(dest, invocation_id));
      break;
   }

   default:
      vec4_visitor::nir_emit_intrinsic(instr);
   }
}