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
36namespace brw {
37
38class vec4_tes_visitor : public vec4_visitor
39{
40public:
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                   bool debug_enabled);
48
49protected:
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
59private:
60   src_reg input_read_header;
61};
62
63} /* namespace brw */
64#endif /* __cplusplus */
65
66#endif /* BRW_VEC4_TES_H */
67