src/intel/compiler/brw_vec4_tes.h

   1 /*
   2  * Copyright © 2013 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  21  * DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 /**
  25  * \file brw_vec4_tes.h
  26  *
  27  * The vec4 mode tessellation evaluation shader compiler backend.
  28  */
  29
  30 #ifndef BRW_VEC4_TES_H
  31 #define BRW_VEC4_TES_H
  32
  33 #include "brw_vec4.h"
  34
  35 #ifdef __cplusplus
  36 namespace brw {
  37
  38 class vec4_tes_visitor : public vec4_visitor
  39 {
  40 public:
  41    vec4_tes_visitor(const struct brw_compiler *compiler,
  42                    void *log_data,
  43                    const struct brw_tes_prog_key *key,
  44                    struct brw_tes_prog_data *prog_data,
  45                    const nir_shader *nir,
  46                    void *mem_ctx,
  47                    int shader_time_index);
  48
  49 protected:
  50    virtual void nir_emit_intrinsic(nir_intrinsic_instr *instr);
  51
  52    virtual void setup_payload();
  53    virtual void emit_prolog();
  54    virtual void emit_thread_end();
  55
  56    virtual void emit_urb_write_header(int mrf);
  57    virtual vec4_instruction *emit_urb_write_opcode(bool complete);
  58
  59 private:
  60    src_reg input_read_header;
  61 };
  62
  63 } /* namespace brw */
  64 #endif /* __cplusplus */
  65
  66 #endif /* BRW_VEC4_TES_H */