1 /*
2  * Copyright © 2006 - 2015 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 DEALINGS
21  * IN THE SOFTWARE.
22  */
23 
24 #ifndef BRW_VEC4_VS_VISITOR_H
25 #define BRW_VEC4_VS_VISITOR_H
26 
27 #include "brw_vec4.h"
28 
29 namespace brw {
30 
31 class vec4_vs_visitor : public vec4_visitor
32 {
33 public:
34    vec4_vs_visitor(const struct brw_compiler *compiler,
35                    void *log_data,
36                    const struct brw_vs_prog_key *key,
37                    struct brw_vs_prog_data *vs_prog_data,
38                    const nir_shader *shader,
39                    void *mem_ctx,
40                    int shader_time_index,
41                    bool debug_enabled);
42 
43 protected:
44    virtual void setup_payload();
45    virtual void emit_prolog();
46    virtual void emit_thread_end();
47    virtual void emit_urb_write_header(int mrf);
48    virtual void emit_urb_slot(dst_reg reg, int varying);
49    virtual vec4_instruction *emit_urb_write_opcode(bool complete);
50 
51 private:
52    int setup_attributes(int payload_reg);
53 
54    const struct brw_vs_prog_key *const key;
55    struct brw_vs_prog_data * const vs_prog_data;
56 };
57 
58 } /* namespace brw */
59 
60 #endif /* BRW_VEC4_VS_VISITOR_H */
61