xref: /third_party/mesa3d/src/mesa/main/glspirv.h (revision bf215546) 
1/*
2 * Copyright 2017 Advanced Micro Devices, Inc.
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23
24#ifndef GLSPIRV_H
25#define GLSPIRV_H
26
27#include "compiler/nir/nir.h"
28#include "main/glheader.h"
29
30#ifdef __cplusplus
31extern "C" {
32#endif
33
34struct gl_shader_program;
35struct gl_context;
36struct gl_shader;
37
38/**
39 * A SPIR-V module contains the raw SPIR-V binary as set by ShaderBinary.
40 *
41 * It is reference-counted, because the same module can be attached to multiple
42 * shader objects simultaneously.
43 */
44struct gl_spirv_module {
45   unsigned RefCount;
46   GLint Length;
47   char Binary[0];
48};
49
50/**
51 * SPIR-V data needed to compile and link a SPIR-V shader.
52 *
53 * It includes a SPIR-V binary that is potentially shared among different
54 * shaders; and shader-specific specialization constants and entry point.
55 *
56 * It is reference-counted because it is shared between gl_shader and its
57 * corresponding gl_linked_shader.
58 */
59struct gl_shader_spirv_data {
60   GLint RefCount;
61
62   struct gl_spirv_module *SpirVModule;
63
64   GLchar *SpirVEntryPoint;
65
66   GLuint NumSpecializationConstants;
67   GLuint *SpecializationConstantsIndex;
68   GLuint *SpecializationConstantsValue;
69};
70
71void
72_mesa_spirv_module_reference(struct gl_spirv_module **dest,
73                             struct gl_spirv_module *src);
74
75void
76_mesa_shader_spirv_data_reference(struct gl_shader_spirv_data **dest,
77                                  struct gl_shader_spirv_data *src);
78
79void
80_mesa_spirv_shader_binary(struct gl_context *ctx,
81                          unsigned n, struct gl_shader **shaders,
82                          const void* binary, size_t length);
83
84void
85_mesa_spirv_link_shaders(struct gl_context *ctx,
86                         struct gl_shader_program *prog);
87
88nir_shader *
89_mesa_spirv_to_nir(struct gl_context *ctx,
90                   const struct gl_shader_program *prog,
91                   gl_shader_stage stage,
92                   const nir_shader_compiler_options *options);
93
94#ifdef __cplusplus
95}
96#endif
97
98#endif /* GLSPIRV_H */
99