1 /*
2  * Copyright © 2016 Red Hat
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 FROM,
20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21  * SOFTWARE.
22  */
23 
24 #ifndef ST_NIR_H
25 #define ST_NIR_H
26 
27 #include "st_context.h"
28 #include "compiler/shader_enums.h"
29 
30 #ifdef __cplusplus
31 extern "C" {
32 #endif
33 
34 struct nir_shader;
35 
36 void st_nir_lower_builtin(struct nir_shader *shader);
37 void st_nir_lower_tex_src_plane(struct nir_shader *shader, unsigned free_slots,
38                                 unsigned lower_2plane, unsigned lower_3plane);
39 
40 void st_nir_lower_wpos_ytransform(struct nir_shader *nir,
41                                   struct gl_program *prog,
42                                   struct pipe_screen *pscreen);
43 
44 char *st_finalize_nir(struct st_context *st, struct gl_program *prog,
45                       struct gl_shader_program *shader_program,
46                       struct nir_shader *nir, bool finalize_by_driver,
47                       bool is_before_variants);
48 
49 void st_nir_opts(struct nir_shader *nir);
50 
51 bool
52 st_link_nir(struct gl_context *ctx,
53             struct gl_shader_program *shader_program);
54 
55 void st_nir_assign_vs_in_locations(struct nir_shader *nir);
56 void st_nir_assign_varying_locations(struct st_context *st,
57                                      struct nir_shader *nir);
58 
59 void st_nir_lower_samplers(struct pipe_screen *screen, struct nir_shader *nir,
60                            struct gl_shader_program *shader_program,
61                            struct gl_program *prog);
62 void st_nir_lower_uniforms(struct st_context *st, struct nir_shader *nir);
63 
64 struct pipe_shader_state *
65 st_nir_finish_builtin_shader(struct st_context *st,
66                              struct nir_shader *nir);
67 
68 struct pipe_shader_state *
69 st_nir_make_passthrough_shader(struct st_context *st,
70                                const char *shader_name,
71                                gl_shader_stage stage,
72                                unsigned num_vars,
73                                unsigned *input_locations,
74                                unsigned *output_locations,
75                                unsigned *interpolation_modes,
76                                unsigned sysval_mask);
77 
78 #ifdef __cplusplus
79 }
80 #endif
81 
82 #endif /* ST_NIR_H */
83