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
29#ifdef __cplusplus
30extern "C" {
31#endif
32
33struct gl_shader_program;
34struct gl_context;
35struct gl_shader;
36
37/**
38 * A SPIR-V module contains the raw SPIR-V binary as set by ShaderBinary.
39 *
40 * It is reference-counted, because the same module can be attached to multiple
41 * shader objects simultaneously.
42 */
43struct gl_spirv_module {
44   unsigned RefCount;
45   GLint Length;
46   char Binary[0];
47};
48
49/**
50 * SPIR-V data needed to compile and link a SPIR-V shader.
51 *
52 * It includes a SPIR-V binary that is potentially shared among different
53 * shaders; and shader-specific specialization constants and entry point.
54 *
55 * It is reference-counted because it is shared between gl_shader and its
56 * corresponding gl_linked_shader.
57 */
58struct gl_shader_spirv_data {
59   GLint RefCount;
60
61   struct gl_spirv_module *SpirVModule;
62
63   GLchar *SpirVEntryPoint;
64
65   GLuint NumSpecializationConstants;
66   GLuint *SpecializationConstantsIndex;
67   GLuint *SpecializationConstantsValue;
68};
69
70void
71_mesa_spirv_module_reference(struct gl_spirv_module **dest,
72                             struct gl_spirv_module *src);
73
74void
75_mesa_shader_spirv_data_reference(struct gl_shader_spirv_data **dest,
76                                  struct gl_shader_spirv_data *src);
77
78void
79_mesa_spirv_shader_binary(struct gl_context *ctx,
80                          unsigned n, struct gl_shader **shaders,
81                          const void* binary, size_t length);
82
83void
84_mesa_spirv_link_shaders(struct gl_context *ctx,
85                         struct gl_shader_program *prog);
86
87nir_shader *
88_mesa_spirv_to_nir(struct gl_context *ctx,
89                   const struct gl_shader_program *prog,
90                   gl_shader_stage stage,
91                   const nir_shader_compiler_options *options);
92
93/**
94 * \name API functions
95 */
96/*@{*/
97
98void GLAPIENTRY
99_mesa_SpecializeShaderARB(GLuint shader,
100                          const GLchar *pEntryPoint,
101                          GLuint numSpecializationConstants,
102                          const GLuint *pConstantIndex,
103                          const GLuint *pConstantValue);
104
105/*@}*/
106
107#ifdef __cplusplus
108}
109#endif
110
111#endif /* GLSPIRV_H */
112