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1 /*
2  * Copyright © 2017 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 GL_NIR_LINKER_H
25 #define GL_NIR_LINKER_H
26 
27 #include <stdbool.h>
28 
29 #include "nir.h"
30 #include "main/glheader.h"
31 #include "main/menums.h"
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 struct gl_constants;
38 struct gl_extensions;
39 struct gl_linked_shader;
40 struct gl_shader_program;
41 struct gl_transform_feedback_info;
42 struct xfb_decl;
43 struct nir_xfb_info;
44 
45 struct gl_nir_linker_options {
46    bool fill_parameters;
47 };
48 
49 #define nir_foreach_gl_uniform_variable(var, shader) \
50    nir_foreach_variable_with_modes(var, shader, nir_var_uniform | \
51                                                 nir_var_mem_ubo | \
52                                                 nir_var_mem_ssbo | \
53                                                 nir_var_image)
54 
55 void gl_nir_opts(nir_shader *nir);
56 
57 bool gl_nir_link_spirv(const struct gl_constants *consts,
58                        struct gl_shader_program *prog,
59                        const struct gl_nir_linker_options *options);
60 
61 bool gl_nir_link_glsl(const struct gl_constants *consts,
62                       const struct gl_extensions *exts,
63                       gl_api api,
64                       struct gl_shader_program *prog);
65 
66 bool gl_nir_link_uniforms(const struct gl_constants *consts,
67                           struct gl_shader_program *prog,
68                           bool fill_parameters);
69 
70 bool gl_nir_link_varyings(const struct gl_constants *consts,
71                           const struct gl_extensions *exts,
72                           gl_api api, struct gl_shader_program *prog);
73 
74 struct nir_xfb_info *
75 gl_to_nir_xfb_info(struct gl_transform_feedback_info *info, void *mem_ctx);
76 
77 nir_variable * gl_nir_lower_xfb_varying(nir_shader *shader,
78                                         const char *old_var_name,
79                                         nir_variable *toplevel_var);
80 
81 void gl_nir_opt_dead_builtin_varyings(const struct gl_constants *consts,
82                                       gl_api api,
83                                       struct gl_shader_program *prog,
84                                       struct gl_linked_shader *producer,
85                                       struct gl_linked_shader *consumer,
86                                       unsigned num_tfeedback_decls,
87                                       struct xfb_decl *tfeedback_decls);
88 
89 void gl_nir_set_uniform_initializers(const struct gl_constants *consts,
90                                      struct gl_shader_program *prog);
91 
92 bool nir_add_packed_var_to_resource_list(const struct gl_constants *consts,
93                                          struct gl_shader_program *shProg,
94                                          struct set *resource_set,
95                                          nir_variable *var,
96                                          unsigned stage, GLenum type);
97 
98 void
99 init_program_resource_list(struct gl_shader_program *prog);
100 
101 void nir_build_program_resource_list(const struct gl_constants *consts,
102                                      struct gl_shader_program *prog,
103                                      bool rebuild_resourse_list);
104 
105 void gl_nir_link_assign_atomic_counter_resources(const struct gl_constants *consts,
106                                                  struct gl_shader_program *prog);
107 
108 void gl_nir_link_check_atomic_counter_resources(const struct gl_constants *consts,
109                                                 struct gl_shader_program *prog);
110 
111 void gl_nir_link_assign_xfb_resources(const struct gl_constants *consts,
112                                       struct gl_shader_program *prog);
113 
114 bool gl_nir_link_uniform_blocks(struct gl_shader_program *prog);
115 
116 #ifdef __cplusplus
117 } /* extern "C" */
118 #endif
119 
120 #endif /* GL_NIR_LINKER_H */
121