FFmpeg
vulkan_glslang.c
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1 /*
2  * This file is part of FFmpeg.
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8  *
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17  */
18 
19 #include <pthread.h>
20 
21 #include <glslang/build_info.h>
22 #include <glslang/Include/glslang_c_interface.h>
23 
24 #include "vulkan_spirv.h"
25 #include "libavutil/mem.h"
26 #include "libavutil/avassert.h"
27 
28 static pthread_mutex_t glslc_mutex = PTHREAD_MUTEX_INITIALIZER;
29 static int glslc_refcount = 0;
30 
31 static const glslang_resource_t glslc_resource_limits = {
32  .max_lights = 32,
33  .max_clip_planes = 6,
34  .max_texture_units = 32,
35  .max_texture_coords = 32,
36  .max_vertex_attribs = 64,
37  .max_vertex_uniform_components = 4096,
38  .max_varying_floats = 64,
39  .max_vertex_texture_image_units = 32,
40  .max_combined_texture_image_units = 80,
41  .max_texture_image_units = 32,
42  .max_fragment_uniform_components = 4096,
43  .max_draw_buffers = 32,
44  .max_vertex_uniform_vectors = 128,
45  .max_varying_vectors = 8,
46  .max_fragment_uniform_vectors = 16,
47  .max_vertex_output_vectors = 16,
48  .max_fragment_input_vectors = 15,
49  .min_program_texel_offset = -8,
50  .max_program_texel_offset = 7,
51  .max_clip_distances = 8,
52  .max_compute_work_group_count_x = 65535,
53  .max_compute_work_group_count_y = 65535,
54  .max_compute_work_group_count_z = 65535,
55  .max_compute_work_group_size_x = 1024,
56  .max_compute_work_group_size_y = 1024,
57  .max_compute_work_group_size_z = 64,
58  .max_compute_uniform_components = 1024,
59  .max_compute_texture_image_units = 16,
60  .max_compute_image_uniforms = 8,
61  .max_compute_atomic_counters = 8,
62  .max_compute_atomic_counter_buffers = 1,
63  .max_varying_components = 60,
64  .max_vertex_output_components = 64,
65  .max_geometry_input_components = 64,
66  .max_geometry_output_components = 128,
67  .max_fragment_input_components = 128,
68  .max_image_units = 8,
69  .max_combined_image_units_and_fragment_outputs = 8,
70  .max_combined_shader_output_resources = 8,
71  .max_image_samples = 0,
72  .max_vertex_image_uniforms = 0,
73  .max_tess_control_image_uniforms = 0,
74  .max_tess_evaluation_image_uniforms = 0,
75  .max_geometry_image_uniforms = 0,
76  .max_fragment_image_uniforms = 8,
77  .max_combined_image_uniforms = 8,
78  .max_geometry_texture_image_units = 16,
79  .max_geometry_output_vertices = 256,
80  .max_geometry_total_output_components = 1024,
81  .max_geometry_uniform_components = 1024,
82  .max_geometry_varying_components = 64,
83  .max_tess_control_input_components = 128,
84  .max_tess_control_output_components = 128,
85  .max_tess_control_texture_image_units = 16,
86  .max_tess_control_uniform_components = 1024,
87  .max_tess_control_total_output_components = 4096,
88  .max_tess_evaluation_input_components = 128,
89  .max_tess_evaluation_output_components = 128,
90  .max_tess_evaluation_texture_image_units = 16,
91  .max_tess_evaluation_uniform_components = 1024,
92  .max_tess_patch_components = 120,
93  .max_patch_vertices = 32,
94  .max_tess_gen_level = 64,
95  .max_viewports = 16,
96  .max_vertex_atomic_counters = 0,
97  .max_tess_control_atomic_counters = 0,
98  .max_tess_evaluation_atomic_counters = 0,
99  .max_geometry_atomic_counters = 0,
100  .max_fragment_atomic_counters = 8,
101  .max_combined_atomic_counters = 8,
102  .max_atomic_counter_bindings = 1,
103  .max_vertex_atomic_counter_buffers = 0,
104  .max_tess_control_atomic_counter_buffers = 0,
105  .max_tess_evaluation_atomic_counter_buffers = 0,
106  .max_geometry_atomic_counter_buffers = 0,
107  .max_fragment_atomic_counter_buffers = 1,
108  .max_combined_atomic_counter_buffers = 1,
109  .max_atomic_counter_buffer_size = 16384,
110  .max_transform_feedback_buffers = 4,
111  .max_transform_feedback_interleaved_components = 64,
112  .max_cull_distances = 8,
113  .max_combined_clip_and_cull_distances = 8,
114  .max_samples = 4,
115  .max_mesh_output_vertices_nv = 256,
116  .max_mesh_output_primitives_nv = 512,
117  .max_mesh_work_group_size_x_nv = 32,
118  .max_mesh_work_group_size_y_nv = 1,
119  .max_mesh_work_group_size_z_nv = 1,
120  .max_task_work_group_size_x_nv = 32,
121  .max_task_work_group_size_y_nv = 1,
122  .max_task_work_group_size_z_nv = 1,
123  .max_mesh_view_count_nv = 4,
124  .maxDualSourceDrawBuffersEXT = 1,
125 
126  .limits = {
127  .non_inductive_for_loops = 1,
128  .while_loops = 1,
129  .do_while_loops = 1,
130  .general_uniform_indexing = 1,
131  .general_attribute_matrix_vector_indexing = 1,
132  .general_varying_indexing = 1,
133  .general_sampler_indexing = 1,
134  .general_variable_indexing = 1,
135  .general_constant_matrix_vector_indexing = 1,
136  }
137 };
138 
139 static int glslc_shader_compile(FFVulkanContext *s, FFVkSPIRVCompiler *ctx,
140  FFVulkanShader *shd, uint8_t **data,
141  size_t *size, const char *entrypoint,
142  void **opaque)
143 {
144  const char *messages;
145  glslang_shader_t *glslc_shader;
146  glslang_program_t *glslc_program;
147 
148  static const glslang_stage_t glslc_stage[] = {
149  [VK_SHADER_STAGE_VERTEX_BIT] = GLSLANG_STAGE_VERTEX,
150  [VK_SHADER_STAGE_FRAGMENT_BIT] = GLSLANG_STAGE_FRAGMENT,
151  [VK_SHADER_STAGE_COMPUTE_BIT] = GLSLANG_STAGE_COMPUTE,
152 #if ((GLSLANG_VERSION_MAJOR) > 12)
153  [VK_SHADER_STAGE_TASK_BIT_EXT] = GLSLANG_STAGE_TASK,
154  [VK_SHADER_STAGE_MESH_BIT_EXT] = GLSLANG_STAGE_MESH,
155  [VK_SHADER_STAGE_RAYGEN_BIT_KHR] = GLSLANG_STAGE_RAYGEN,
156  [VK_SHADER_STAGE_INTERSECTION_BIT_KHR] = GLSLANG_STAGE_INTERSECT,
157  [VK_SHADER_STAGE_ANY_HIT_BIT_KHR] = GLSLANG_STAGE_ANYHIT,
158  [VK_SHADER_STAGE_CLOSEST_HIT_BIT_KHR] = GLSLANG_STAGE_CLOSESTHIT,
159  [VK_SHADER_STAGE_MISS_BIT_KHR] = GLSLANG_STAGE_MISS,
160  [VK_SHADER_STAGE_CALLABLE_BIT_KHR] = GLSLANG_STAGE_CALLABLE,
161 #endif
162  };
163 
164  const glslang_input_t glslc_input = {
165  .language = GLSLANG_SOURCE_GLSL,
166  .stage = glslc_stage[shd->stage],
167  .client = GLSLANG_CLIENT_VULKAN,
168 #if ((GLSLANG_VERSION_MAJOR) >= 12)
169  .client_version = GLSLANG_TARGET_VULKAN_1_3,
170  .target_language_version = GLSLANG_TARGET_SPV_1_6,
171 #else
172  .client_version = GLSLANG_TARGET_VULKAN_1_2,
173  .target_language_version = GLSLANG_TARGET_SPV_1_5,
174 #endif
175  .target_language = GLSLANG_TARGET_SPV,
176  .code = shd->src.str,
177  .default_version = 460,
178  .default_profile = GLSLANG_NO_PROFILE,
179  .force_default_version_and_profile = false,
180  .forward_compatible = false,
181  .messages = GLSLANG_MSG_DEFAULT_BIT,
182  .resource = &glslc_resource_limits,
183  };
184 
185 #if ((GLSLANG_VERSION_MAJOR) >= 12)
186  glslang_spv_options_t glslc_opts = {
187  .generate_debug_info = !!(s->extensions & (FF_VK_EXT_DEBUG_UTILS | FF_VK_EXT_RELAXED_EXTENDED_INSTR)),
188  .emit_nonsemantic_shader_debug_info = !!(s->extensions & FF_VK_EXT_RELAXED_EXTENDED_INSTR),
189  .emit_nonsemantic_shader_debug_source = !!(s->extensions & FF_VK_EXT_RELAXED_EXTENDED_INSTR),
190  .disable_optimizer = !!(s->extensions & FF_VK_EXT_DEBUG_UTILS),
191  .strip_debug_info = !(s->extensions & (FF_VK_EXT_DEBUG_UTILS | FF_VK_EXT_RELAXED_EXTENDED_INSTR)),
192  .optimize_size = 0,
193  .disassemble = 0,
194  .validate = 1,
195  .compile_only = 0,
196  };
197 #endif
198 
199  av_assert0(glslc_refcount);
200 
201  *opaque = NULL;
202 
203  if (!(glslc_shader = glslang_shader_create(&glslc_input)))
204  return AVERROR(ENOMEM);
205 
206  if (!glslang_shader_preprocess(glslc_shader, &glslc_input)) {
207  ff_vk_shader_print(s, shd, AV_LOG_WARNING);
208  av_log(s, AV_LOG_ERROR, "Unable to preprocess shader: %s (%s)!\n",
209  glslang_shader_get_info_log(glslc_shader),
210  glslang_shader_get_info_debug_log(glslc_shader));
211  glslang_shader_delete(glslc_shader);
212  return AVERROR(EINVAL);
213  }
214 
215  if (!glslang_shader_parse(glslc_shader, &glslc_input)) {
216  ff_vk_shader_print(s, shd, AV_LOG_WARNING);
217  av_log(s, AV_LOG_ERROR, "Unable to parse shader: %s (%s)!\n",
218  glslang_shader_get_info_log(glslc_shader),
219  glslang_shader_get_info_debug_log(glslc_shader));
220  glslang_shader_delete(glslc_shader);
221  return AVERROR(EINVAL);
222  }
223 
224  if (!(glslc_program = glslang_program_create())) {
225  glslang_shader_delete(glslc_shader);
226  return AVERROR(EINVAL);
227  }
228 
229  glslang_program_add_shader(glslc_program, glslc_shader);
230 
231  if (!glslang_program_link(glslc_program, GLSLANG_MSG_SPV_RULES_BIT |
232  GLSLANG_MSG_VULKAN_RULES_BIT)) {
233  ff_vk_shader_print(s, shd, AV_LOG_WARNING);
234  av_log(s, AV_LOG_ERROR, "Unable to link shader: %s (%s)!\n",
235  glslang_program_get_info_log(glslc_program),
236  glslang_program_get_info_debug_log(glslc_program));
237  glslang_program_delete(glslc_program);
238  glslang_shader_delete(glslc_shader);
239  return AVERROR(EINVAL);
240  }
241 
242 #if ((GLSLANG_VERSION_MAJOR) >= 12)
243  glslang_program_SPIRV_generate_with_options(glslc_program, glslc_input.stage, &glslc_opts);
244 #else
245  glslang_program_SPIRV_generate(glslc_program, glslc_input.stage);
246 #endif
247 
248  messages = glslang_program_SPIRV_get_messages(glslc_program);
249  if (messages) {
250  ff_vk_shader_print(s, shd, AV_LOG_WARNING);
251  av_log(s, AV_LOG_WARNING, "%s\n", messages);
252  } else {
253  ff_vk_shader_print(s, shd, AV_LOG_VERBOSE);
254  }
255 
256  glslang_shader_delete(glslc_shader);
257 
258  *size = glslang_program_SPIRV_get_size(glslc_program) * sizeof(unsigned int);
259  *data = (void *)glslang_program_SPIRV_get_ptr(glslc_program);
260  *opaque = glslc_program;
261 
262  return 0;
263 }
264 
265 static void glslc_shader_free(FFVkSPIRVCompiler *ctx, void **opaque)
266 {
267  if (!opaque || !*opaque)
268  return;
269 
270  av_assert0(glslc_refcount);
271  glslang_program_delete(*opaque);
272  *opaque = NULL;
273 }
274 
275 static void glslc_uninit(FFVkSPIRVCompiler **ctx)
276 {
277  if (!ctx || !*ctx)
278  return;
279 
280  pthread_mutex_lock(&glslc_mutex);
281  if (glslc_refcount && (--glslc_refcount == 0))
282  glslang_finalize_process();
283  pthread_mutex_unlock(&glslc_mutex);
284 
285  av_freep(ctx);
286 }
287 
288 FFVkSPIRVCompiler *ff_vk_glslang_init(void)
289 {
290  FFVkSPIRVCompiler *ret = av_mallocz(sizeof(*ret));
291  if (!ret)
292  return NULL;
293 
294  ret->compile_shader = glslc_shader_compile;
295  ret->free_shader = glslc_shader_free;
296  ret->uninit = glslc_uninit;
297 
298  pthread_mutex_lock(&glslc_mutex);
299  if (!glslc_refcount++) {
300  if (!glslang_initialize_process()) {
301  av_freep(&ret);
302  glslc_refcount--;
303  }
304  }
305  pthread_mutex_unlock(&glslc_mutex);
306 
307  return ret;
308 }
pthread_mutex_t
_fmutex pthread_mutex_t
Definition: os2threads.h:53
AV_LOG_WARNING
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:215
AVERROR
Filter the word “frame” indicates either a video frame or a group of audio as stored in an AVFrame structure Format for each input and each output the list of supported formats For video that means pixel format For audio that means channel sample they are references to shared objects When the negotiation mechanism computes the intersection of the formats supported at each end of a all references to both lists are replaced with a reference to the intersection And when a single format is eventually chosen for a link amongst the remaining all references to the list are updated That means that if a filter requires that its input and output have the same format amongst a supported all it has to do is use a reference to the same list of formats query_formats can leave some formats unset and return AVERROR(EAGAIN) to cause the negotiation mechanism toagain later. That can be used by filters with complex requirements to use the format negotiated on one link to set the formats supported on another. Frame references ownership and permissions
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data
const char data[16]
Definition: mxf.c:149
AV_LOG_VERBOSE
#define AV_LOG_VERBOSE
Detailed information.
Definition: log.h:225
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static int glslc_shader_compile(FFVulkanContext *s, FFVkSPIRVCompiler *ctx, FFVulkanShader *shd, uint8_t **data, size_t *size, const char *entrypoint, void **opaque)
Definition: vulkan_glslang.c:139
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#define AV_LOG_ERROR
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Definition: log.h:209
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Definition: vulkan_glslang.c:275
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Definition: vulkan_glslang.c:29
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Definition: vulkan_glslang.c:31
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Definition: filter_design.txt:187
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