1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 #include <shaderc/shaderc.h>
20
23
26 size_t *
size,
const char *entrypoint,
27 void **opaque)
28 {
29 int loglevel, err, warn,
ret;
31 shaderc_compilation_result_t res;
32 static const char *shdc_result[] = {
33 [shaderc_compilation_status_success] = "success",
34 [shaderc_compilation_status_invalid_stage] = "invalid stage",
35 [shaderc_compilation_status_compilation_error] = "error",
36 [shaderc_compilation_status_internal_error] = "internal error",
37 [shaderc_compilation_status_null_result_object] = "no result",
38 [shaderc_compilation_status_invalid_assembly] = "invalid assembly",
39 };
40 static const shaderc_shader_kind shdc_kind[] = {
41 [VK_SHADER_STAGE_VERTEX_BIT] = shaderc_glsl_vertex_shader,
42 [VK_SHADER_STAGE_FRAGMENT_BIT] = shaderc_glsl_fragment_shader,
43 [VK_SHADER_STAGE_COMPUTE_BIT] = shaderc_glsl_compute_shader,
44 [VK_SHADER_STAGE_MESH_BIT_EXT] = shaderc_mesh_shader,
45 [VK_SHADER_STAGE_TASK_BIT_EXT] = shaderc_task_shader,
46 [VK_SHADER_STAGE_RAYGEN_BIT_KHR] = shaderc_raygen_shader,
47 [VK_SHADER_STAGE_ANY_HIT_BIT_KHR] = shaderc_anyhit_shader,
48 [VK_SHADER_STAGE_CLOSEST_HIT_BIT_KHR] = shaderc_closesthit_shader,
49 [VK_SHADER_STAGE_MISS_BIT_KHR] = shaderc_miss_shader,
50 [VK_SHADER_STAGE_INTERSECTION_BIT_KHR] = shaderc_intersection_shader,
51 [VK_SHADER_STAGE_CALLABLE_BIT_KHR] = shaderc_callable_shader,
52 };
53
54 shaderc_compile_options_t
opts = shaderc_compile_options_initialize();
58
59 shaderc_compile_options_set_target_env(
opts, shaderc_target_env_vulkan,
60 shaderc_env_version_vulkan_1_3);
61 shaderc_compile_options_set_target_spirv(
opts, shaderc_spirv_version_1_6);
62
63 /* If either extension is set, turn on debug info */
65 shaderc_compile_options_set_generate_debug_info(
opts);
66
68 shaderc_compile_options_set_optimization_level(
opts,
69 shaderc_optimization_level_zero);
70 else
71 shaderc_compile_options_set_optimization_level(
opts,
72 shaderc_optimization_level_performance);
73
74 res = shaderc_compile_into_spv((shaderc_compiler_t)
ctx->priv,
75 shd->
src.str, strlen(shd->
src.str),
76 shdc_kind[shd->
stage],
78 shaderc_compile_options_release(
opts);
79
80 ret = shaderc_result_get_compilation_status(res);
81 err = shaderc_result_get_num_errors(res);
82 warn = shaderc_result_get_num_warnings(res);
83 message = shaderc_result_get_error_message(res);
84
85 if (
ret != shaderc_compilation_status_success && !err)
86 err = 1;
87
89
94 av_log(
s, loglevel,
"shaderc compile status '%s' (%d errors, %d warnings)\n",
96
97 if (err > 0)
99
100 *
data = (uint8_t *)shaderc_result_get_bytes(res);
101 *
size = shaderc_result_get_length(res);
102 *opaque = res;
103
104 return 0;
105 }
106
108 {
109 if (!opaque || !*opaque)
110 return;
111
112 shaderc_result_release((shaderc_compilation_result_t)*opaque);
114 }
115
117 {
119
121 return;
122
124
125 shaderc_compiler_release((shaderc_compiler_t)
s->priv);
127 }
128
130 {
134
138
139 ret->priv = (
void *)shaderc_compiler_initialize();
142
144 }