1 /* -*- mesa-c++  -*-
2  *
3  * Copyright (c) 2019 Collabora LTD
4  *
5  * Author: Gert Wollny <gert.wollny@collabora.com>
6  *
7  * Permission is hereby granted, free of charge, to any person obtaining a
8  * copy of this software and associated documentation files (the "Software"),
9  * to deal in the Software without restriction, including without limitation
10  * on the rights to use, copy, modify, merge, publish, distribute, sub
11  * license, and/or sell copies of the Software, and to permit persons to whom
12  * the Software is furnished to do so, subject to the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the next
15  * paragraph) shall be included in all copies or substantial portions of the
16  * Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
25  */
26 
27 
28 #ifndef SFN_GEOMETRYSHADERFROMNIR_H
29 #define SFN_GEOMETRYSHADERFROMNIR_H
30 
31 #include "sfn_vertexstageexport.h"
32 
33 namespace r600 {
34 
35 class GeometryShaderFromNir : public VertexStage
36 {
37 public:
38    GeometryShaderFromNir(r600_pipe_shader *sh, r600_pipe_shader_selector& sel, const r600_shader_key& key, enum chip_class chip_class);
39 
40    bool scan_sysvalue_access(nir_instr *instr) override;
primitive_id()41    PValue primitive_id() override {return m_primitive_id;}
42 
43 private:
44 
45    bool do_allocate_reserved_registers() override;
46    bool emit_intrinsic_instruction_override(nir_intrinsic_instr* instr) override;
47 
48    bool emit_vertex(nir_intrinsic_instr* instr, bool cut);
49    void emit_adj_fix();
50 
51    bool process_store_output(nir_intrinsic_instr* instr);
52    bool process_load_input(nir_intrinsic_instr* instr);
53 
54    bool emit_store(nir_intrinsic_instr* instr);
55    bool emit_load_per_vertex_input(nir_intrinsic_instr* instr);
56 
57    void do_finalize() override;
58 
59    r600_pipe_shader *m_pipe_shader;
60    const pipe_stream_output_info *m_so_info;
61 
62    std::array<PValue, 6> m_per_vertex_offsets;
63    PValue m_primitive_id;
64    PValue m_invocation_id;
65    PValue m_export_base[4];
66    bool m_first_vertex_emitted;
67 
68    int  m_offset;
69    int  m_next_input_ring_offset;
70    r600_shader_key m_key;
71    int m_clip_dist_mask;
72    unsigned m_cur_ring_output;
73    bool m_gs_tri_strip_adj_fix;
74    uint64_t m_input_mask;
75 
76    std::map<int, MemRingOutIntruction *> streamout_data;
77 };
78 
79 }
80 
81 #endif // SFN_GEOMETRYSHADERFROMNIR_H
82