1 //
2 // Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
3 // Copyright (C) 2012-2013 LunarG, Inc.
4 // Copyright (C) 2017 ARM Limited.
5 // Copyright (C) 2015-2018 Google, Inc.
6 //
7 // All rights reserved.
8 //
9 // Redistribution and use in source and binary forms, with or without
10 // modification, are permitted provided that the following conditions
11 // are met:
12 //
13 // Redistributions of source code must retain the above copyright
14 // notice, this list of conditions and the following disclaimer.
15 //
16 // Redistributions in binary form must reproduce the above
17 // copyright notice, this list of conditions and the following
18 // disclaimer in the documentation and/or other materials provided
19 // with the distribution.
20 //
21 // Neither the name of 3Dlabs Inc. Ltd. nor the names of its
22 // contributors may be used to endorse or promote products derived
23 // from this software without specific prior written permission.
24 //
25 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
28 // FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
29 // COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
30 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
31 // BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
32 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
33 // CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
35 // ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 // POSSIBILITY OF SUCH DAMAGE.
37 //
38
39 //
40 // Help manage multiple profiles, versions, extensions etc.
41 //
42 // These don't return error codes, as the presumption is parsing will
43 // always continue as if the tested feature were enabled, and thus there
44 // is no error recovery needed.
45 //
46
47 //
48 // HOW TO add a feature enabled by an extension.
49 //
50 // To add a new hypothetical "Feature F" to the front end, where an extension
51 // "XXX_extension_X" can be used to enable the feature, do the following.
52 //
53 // OVERVIEW: Specific features are what are error-checked for, not
54 // extensions: A specific Feature F might be enabled by an extension, or a
55 // particular version in a particular profile, or a stage, or combinations, etc.
56 //
57 // The basic mechanism is to use the following to "declare" all the things that
58 // enable/disable Feature F, in a code path that implements Feature F:
59 //
60 // requireProfile()
61 // profileRequires()
62 // requireStage()
63 // checkDeprecated()
64 // requireNotRemoved()
65 // requireExtensions()
66 //
67 // Typically, only the first two calls are needed. They go into a code path that
68 // implements Feature F, and will log the proper error/warning messages. Parsing
69 // will then always continue as if the tested feature was enabled.
70 //
71 // There is typically no if-testing or conditional parsing, just insertion of the calls above.
72 // However, if symbols specific to the extension are added (step 5), they will
73 // only be added under tests that the minimum version and profile are present.
74 //
75 // 1) Add a symbol name for the extension string at the bottom of Versions.h:
76 //
77 // const char* const XXX_extension_X = "XXX_extension_X";
78 //
79 // 2) Add extension initialization to TParseVersions::initializeExtensionBehavior(),
80 // the first function below:
81 //
82 // extensionBehavior[XXX_extension_X] = EBhDisable;
83 //
84 // 3) Add any preprocessor directives etc. in the next function, TParseVersions::getPreamble():
85 //
86 // "#define XXX_extension_X 1\n"
87 //
88 // The new-line is important, as that ends preprocess tokens.
89 //
90 // 4) Insert a profile check in the feature's path (unless all profiles support the feature,
91 // for some version level). That is, call requireProfile() to constrain the profiles, e.g.:
92 //
93 // // ... in a path specific to Feature F...
94 // requireProfile(loc,
95 // ECoreProfile | ECompatibilityProfile,
96 // "Feature F");
97 //
98 // 5) For each profile that supports the feature, insert version/extension checks:
99 //
100 // The mostly likely scenario is that Feature F can only be used with a
101 // particular profile if XXX_extension_X is present or the version is
102 // high enough that the core specification already incorporated it.
103 //
104 // // following the requireProfile() call...
105 // profileRequires(loc,
106 // ECoreProfile | ECompatibilityProfile,
107 // 420, // 0 if no version incorporated the feature into the core spec.
108 // XXX_extension_X, // can be a list of extensions that all add the feature
109 // "Feature F Description");
110 //
111 // This allows the feature if either A) one of the extensions is enabled or
112 // B) the version is high enough. If no version yet incorporates the feature
113 // into core, pass in 0.
114 //
115 // This can be called multiple times, if different profiles support the
116 // feature starting at different version numbers or with different
117 // extensions.
118 //
119 // This must be called for each profile allowed by the initial call to requireProfile().
120 //
121 // Profiles are all masks, which can be "or"-ed together.
122 //
123 // ENoProfile
124 // ECoreProfile
125 // ECompatibilityProfile
126 // EEsProfile
127 //
128 // The ENoProfile profile is only for desktop, before profiles showed up in version 150;
129 // All other #version with no profile default to either es or core, and so have profiles.
130 //
131 // You can select all but a particular profile using ~. The following basically means "desktop":
132 //
133 // ~EEsProfile
134 //
135 // 6) If built-in symbols are added by the extension, add them in Initialize.cpp: Their use
136 // will be automatically error checked against the extensions enabled at that moment.
137 // see the comment at the top of Initialize.cpp for where to put them. Establish them at
138 // the earliest release that supports the extension. Then, tag them with the
139 // set of extensions that both enable them and are necessary, given the version of the symbol
140 // table. (There is a different symbol table for each version.)
141 //
142
143 #include "parseVersions.h"
144 #include "localintermediate.h"
145
146 namespace glslang {
147
148 //
149 // Initialize all extensions, almost always to 'disable', as once their features
150 // are incorporated into a core version, their features are supported through allowing that
151 // core version, not through a pseudo-enablement of the extension.
152 //
initializeExtensionBehavior()153 void TParseVersions::initializeExtensionBehavior()
154 {
155 extensionBehavior[E_GL_OES_texture_3D] = EBhDisable;
156 extensionBehavior[E_GL_OES_standard_derivatives] = EBhDisable;
157 extensionBehavior[E_GL_EXT_frag_depth] = EBhDisable;
158 extensionBehavior[E_GL_OES_EGL_image_external] = EBhDisable;
159 extensionBehavior[E_GL_OES_EGL_image_external_essl3] = EBhDisable;
160 extensionBehavior[E_GL_EXT_shader_texture_lod] = EBhDisable;
161 extensionBehavior[E_GL_EXT_shadow_samplers] = EBhDisable;
162 extensionBehavior[E_GL_ARB_texture_rectangle] = EBhDisable;
163 extensionBehavior[E_GL_3DL_array_objects] = EBhDisable;
164 extensionBehavior[E_GL_ARB_shading_language_420pack] = EBhDisable;
165 extensionBehavior[E_GL_ARB_texture_gather] = EBhDisable;
166 extensionBehavior[E_GL_ARB_gpu_shader5] = EBhDisablePartial;
167 extensionBehavior[E_GL_ARB_separate_shader_objects] = EBhDisable;
168 extensionBehavior[E_GL_ARB_compute_shader] = EBhDisable;
169 extensionBehavior[E_GL_ARB_tessellation_shader] = EBhDisable;
170 extensionBehavior[E_GL_ARB_enhanced_layouts] = EBhDisable;
171 extensionBehavior[E_GL_ARB_texture_cube_map_array] = EBhDisable;
172 extensionBehavior[E_GL_ARB_shader_texture_lod] = EBhDisable;
173 extensionBehavior[E_GL_ARB_explicit_attrib_location] = EBhDisable;
174 extensionBehavior[E_GL_ARB_shader_image_load_store] = EBhDisable;
175 extensionBehavior[E_GL_ARB_shader_atomic_counters] = EBhDisable;
176 extensionBehavior[E_GL_ARB_shader_draw_parameters] = EBhDisable;
177 extensionBehavior[E_GL_ARB_shader_group_vote] = EBhDisable;
178 extensionBehavior[E_GL_ARB_derivative_control] = EBhDisable;
179 extensionBehavior[E_GL_ARB_shader_texture_image_samples] = EBhDisable;
180 extensionBehavior[E_GL_ARB_viewport_array] = EBhDisable;
181 extensionBehavior[E_GL_ARB_gpu_shader_int64] = EBhDisable;
182 extensionBehavior[E_GL_ARB_shader_ballot] = EBhDisable;
183 extensionBehavior[E_GL_ARB_sparse_texture2] = EBhDisable;
184 extensionBehavior[E_GL_ARB_sparse_texture_clamp] = EBhDisable;
185 extensionBehavior[E_GL_ARB_shader_stencil_export] = EBhDisable;
186 // extensionBehavior[E_GL_ARB_cull_distance] = EBhDisable; // present for 4.5, but need extension control over block members
187 extensionBehavior[E_GL_ARB_post_depth_coverage] = EBhDisable;
188 extensionBehavior[E_GL_ARB_shader_viewport_layer_array] = EBhDisable;
189
190 extensionBehavior[E_GL_KHR_shader_subgroup_basic] = EBhDisable;
191 extensionBehavior[E_GL_KHR_shader_subgroup_vote] = EBhDisable;
192 extensionBehavior[E_GL_KHR_shader_subgroup_arithmetic] = EBhDisable;
193 extensionBehavior[E_GL_KHR_shader_subgroup_ballot] = EBhDisable;
194 extensionBehavior[E_GL_KHR_shader_subgroup_shuffle] = EBhDisable;
195 extensionBehavior[E_GL_KHR_shader_subgroup_shuffle_relative] = EBhDisable;
196 extensionBehavior[E_GL_KHR_shader_subgroup_clustered] = EBhDisable;
197 extensionBehavior[E_GL_KHR_shader_subgroup_quad] = EBhDisable;
198 extensionBehavior[E_GL_KHR_memory_scope_semantics] = EBhDisable;
199
200 extensionBehavior[E_GL_EXT_shader_atomic_int64] = EBhDisable;
201
202 extensionBehavior[E_GL_EXT_shader_non_constant_global_initializers] = EBhDisable;
203 extensionBehavior[E_GL_EXT_shader_image_load_formatted] = EBhDisable;
204 extensionBehavior[E_GL_EXT_post_depth_coverage] = EBhDisable;
205 extensionBehavior[E_GL_EXT_control_flow_attributes] = EBhDisable;
206 extensionBehavior[E_GL_EXT_nonuniform_qualifier] = EBhDisable;
207 extensionBehavior[E_GL_EXT_samplerless_texture_functions] = EBhDisable;
208 extensionBehavior[E_GL_EXT_scalar_block_layout] = EBhDisable;
209 extensionBehavior[E_GL_EXT_fragment_invocation_density] = EBhDisable;
210 extensionBehavior[E_GL_EXT_buffer_reference] = EBhDisable;
211
212 extensionBehavior[E_GL_EXT_shader_16bit_storage] = EBhDisable;
213 extensionBehavior[E_GL_EXT_shader_8bit_storage] = EBhDisable;
214
215 // #line and #include
216 extensionBehavior[E_GL_GOOGLE_cpp_style_line_directive] = EBhDisable;
217 extensionBehavior[E_GL_GOOGLE_include_directive] = EBhDisable;
218
219 #ifdef AMD_EXTENSIONS
220 extensionBehavior[E_GL_AMD_shader_ballot] = EBhDisable;
221 extensionBehavior[E_GL_AMD_shader_trinary_minmax] = EBhDisable;
222 extensionBehavior[E_GL_AMD_shader_explicit_vertex_parameter] = EBhDisable;
223 extensionBehavior[E_GL_AMD_gcn_shader] = EBhDisable;
224 extensionBehavior[E_GL_AMD_gpu_shader_half_float] = EBhDisable;
225 extensionBehavior[E_GL_AMD_texture_gather_bias_lod] = EBhDisable;
226 extensionBehavior[E_GL_AMD_gpu_shader_int16] = EBhDisable;
227 extensionBehavior[E_GL_AMD_shader_image_load_store_lod] = EBhDisable;
228 extensionBehavior[E_GL_AMD_shader_fragment_mask] = EBhDisable;
229 extensionBehavior[E_GL_AMD_gpu_shader_half_float_fetch] = EBhDisable;
230 #endif
231
232 #ifdef NV_EXTENSIONS
233 extensionBehavior[E_GL_NV_sample_mask_override_coverage] = EBhDisable;
234 extensionBehavior[E_SPV_NV_geometry_shader_passthrough] = EBhDisable;
235 extensionBehavior[E_GL_NV_viewport_array2] = EBhDisable;
236 extensionBehavior[E_GL_NV_stereo_view_rendering] = EBhDisable;
237 extensionBehavior[E_GL_NVX_multiview_per_view_attributes] = EBhDisable;
238 extensionBehavior[E_GL_NV_shader_atomic_int64] = EBhDisable;
239 extensionBehavior[E_GL_NV_conservative_raster_underestimation] = EBhDisable;
240 extensionBehavior[E_GL_NV_shader_noperspective_interpolation] = EBhDisable;
241 extensionBehavior[E_GL_NV_shader_subgroup_partitioned] = EBhDisable;
242 extensionBehavior[E_GL_NV_shading_rate_image] = EBhDisable;
243 extensionBehavior[E_GL_NV_ray_tracing] = EBhDisable;
244 extensionBehavior[E_GL_NV_fragment_shader_barycentric] = EBhDisable;
245 extensionBehavior[E_GL_NV_compute_shader_derivatives] = EBhDisable;
246 extensionBehavior[E_GL_NV_shader_texture_footprint] = EBhDisable;
247 extensionBehavior[E_GL_NV_mesh_shader] = EBhDisable;
248 #endif
249
250 // AEP
251 extensionBehavior[E_GL_ANDROID_extension_pack_es31a] = EBhDisable;
252 extensionBehavior[E_GL_KHR_blend_equation_advanced] = EBhDisable;
253 extensionBehavior[E_GL_OES_sample_variables] = EBhDisable;
254 extensionBehavior[E_GL_OES_shader_image_atomic] = EBhDisable;
255 extensionBehavior[E_GL_OES_shader_multisample_interpolation] = EBhDisable;
256 extensionBehavior[E_GL_OES_texture_storage_multisample_2d_array] = EBhDisable;
257 extensionBehavior[E_GL_EXT_geometry_shader] = EBhDisable;
258 extensionBehavior[E_GL_EXT_geometry_point_size] = EBhDisable;
259 extensionBehavior[E_GL_EXT_gpu_shader5] = EBhDisable;
260 extensionBehavior[E_GL_EXT_primitive_bounding_box] = EBhDisable;
261 extensionBehavior[E_GL_EXT_shader_io_blocks] = EBhDisable;
262 extensionBehavior[E_GL_EXT_tessellation_shader] = EBhDisable;
263 extensionBehavior[E_GL_EXT_tessellation_point_size] = EBhDisable;
264 extensionBehavior[E_GL_EXT_texture_buffer] = EBhDisable;
265 extensionBehavior[E_GL_EXT_texture_cube_map_array] = EBhDisable;
266
267 // OES matching AEP
268 extensionBehavior[E_GL_OES_geometry_shader] = EBhDisable;
269 extensionBehavior[E_GL_OES_geometry_point_size] = EBhDisable;
270 extensionBehavior[E_GL_OES_gpu_shader5] = EBhDisable;
271 extensionBehavior[E_GL_OES_primitive_bounding_box] = EBhDisable;
272 extensionBehavior[E_GL_OES_shader_io_blocks] = EBhDisable;
273 extensionBehavior[E_GL_OES_tessellation_shader] = EBhDisable;
274 extensionBehavior[E_GL_OES_tessellation_point_size] = EBhDisable;
275 extensionBehavior[E_GL_OES_texture_buffer] = EBhDisable;
276 extensionBehavior[E_GL_OES_texture_cube_map_array] = EBhDisable;
277
278 // EXT extensions
279 extensionBehavior[E_GL_EXT_device_group] = EBhDisable;
280 extensionBehavior[E_GL_EXT_multiview] = EBhDisable;
281
282 // OVR extensions
283 extensionBehavior[E_GL_OVR_multiview] = EBhDisable;
284 extensionBehavior[E_GL_OVR_multiview2] = EBhDisable;
285
286 // explicit types
287 extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types] = EBhDisable;
288 extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_int8] = EBhDisable;
289 extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_int16] = EBhDisable;
290 extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_int32] = EBhDisable;
291 extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_int64] = EBhDisable;
292 extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_float16] = EBhDisable;
293 extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_float32] = EBhDisable;
294 extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_float64] = EBhDisable;
295 }
296
297 // Get code that is not part of a shared symbol table, is specific to this shader,
298 // or needed by the preprocessor (which does not use a shared symbol table).
getPreamble(std::string & preamble)299 void TParseVersions::getPreamble(std::string& preamble)
300 {
301 if (profile == EEsProfile) {
302 preamble =
303 "#define GL_ES 1\n"
304 "#define GL_FRAGMENT_PRECISION_HIGH 1\n"
305 "#define GL_OES_texture_3D 1\n"
306 "#define GL_OES_standard_derivatives 1\n"
307 "#define GL_EXT_frag_depth 1\n"
308 "#define GL_OES_EGL_image_external 1\n"
309 "#define GL_OES_EGL_image_external_essl3 1\n"
310 "#define GL_EXT_shader_texture_lod 1\n"
311 "#define GL_EXT_shadow_samplers 1\n"
312
313 // AEP
314 "#define GL_ANDROID_extension_pack_es31a 1\n"
315 "#define GL_KHR_blend_equation_advanced 1\n"
316 "#define GL_OES_sample_variables 1\n"
317 "#define GL_OES_shader_image_atomic 1\n"
318 "#define GL_OES_shader_multisample_interpolation 1\n"
319 "#define GL_OES_texture_storage_multisample_2d_array 1\n"
320 "#define GL_EXT_geometry_shader 1\n"
321 "#define GL_EXT_geometry_point_size 1\n"
322 "#define GL_EXT_gpu_shader5 1\n"
323 "#define GL_EXT_primitive_bounding_box 1\n"
324 "#define GL_EXT_shader_io_blocks 1\n"
325 "#define GL_EXT_tessellation_shader 1\n"
326 "#define GL_EXT_tessellation_point_size 1\n"
327 "#define GL_EXT_texture_buffer 1\n"
328 "#define GL_EXT_texture_cube_map_array 1\n"
329
330 // OES matching AEP
331 "#define GL_OES_geometry_shader 1\n"
332 "#define GL_OES_geometry_point_size 1\n"
333 "#define GL_OES_gpu_shader5 1\n"
334 "#define GL_OES_primitive_bounding_box 1\n"
335 "#define GL_OES_shader_io_blocks 1\n"
336 "#define GL_OES_tessellation_shader 1\n"
337 "#define GL_OES_tessellation_point_size 1\n"
338 "#define GL_OES_texture_buffer 1\n"
339 "#define GL_OES_texture_cube_map_array 1\n"
340 "#define GL_EXT_shader_non_constant_global_initializers 1\n"
341 ;
342
343 #ifdef NV_EXTENSIONS
344 if (profile == EEsProfile && version >= 300) {
345 preamble += "#define GL_NV_shader_noperspective_interpolation 1\n";
346 }
347 #endif
348
349 } else {
350 preamble =
351 "#define GL_FRAGMENT_PRECISION_HIGH 1\n"
352 "#define GL_ARB_texture_rectangle 1\n"
353 "#define GL_ARB_shading_language_420pack 1\n"
354 "#define GL_ARB_texture_gather 1\n"
355 "#define GL_ARB_gpu_shader5 1\n"
356 "#define GL_ARB_separate_shader_objects 1\n"
357 "#define GL_ARB_compute_shader 1\n"
358 "#define GL_ARB_tessellation_shader 1\n"
359 "#define GL_ARB_enhanced_layouts 1\n"
360 "#define GL_ARB_texture_cube_map_array 1\n"
361 "#define GL_ARB_shader_texture_lod 1\n"
362 "#define GL_ARB_explicit_attrib_location 1\n"
363 "#define GL_ARB_shader_image_load_store 1\n"
364 "#define GL_ARB_shader_atomic_counters 1\n"
365 "#define GL_ARB_shader_draw_parameters 1\n"
366 "#define GL_ARB_shader_group_vote 1\n"
367 "#define GL_ARB_derivative_control 1\n"
368 "#define GL_ARB_shader_texture_image_samples 1\n"
369 "#define GL_ARB_viewport_array 1\n"
370 "#define GL_ARB_gpu_shader_int64 1\n"
371 "#define GL_ARB_shader_ballot 1\n"
372 "#define GL_ARB_sparse_texture2 1\n"
373 "#define GL_ARB_sparse_texture_clamp 1\n"
374 "#define GL_ARB_shader_stencil_export 1\n"
375 // "#define GL_ARB_cull_distance 1\n" // present for 4.5, but need extension control over block members
376 "#define GL_ARB_post_depth_coverage 1\n"
377 "#define GL_EXT_shader_non_constant_global_initializers 1\n"
378 "#define GL_EXT_shader_image_load_formatted 1\n"
379 "#define GL_EXT_post_depth_coverage 1\n"
380 "#define GL_EXT_control_flow_attributes 1\n"
381 "#define GL_EXT_nonuniform_qualifier 1\n"
382 "#define GL_EXT_shader_16bit_storage 1\n"
383 "#define GL_EXT_shader_8bit_storage 1\n"
384 "#define GL_EXT_samplerless_texture_functions 1\n"
385 "#define GL_EXT_scalar_block_layout 1\n"
386 "#define GL_EXT_fragment_invocation_density 1\n"
387 "#define GL_EXT_buffer_reference 1\n"
388
389 // GL_KHR_shader_subgroup
390 "#define GL_KHR_shader_subgroup_basic 1\n"
391 "#define GL_KHR_shader_subgroup_vote 1\n"
392 "#define GL_KHR_shader_subgroup_arithmetic 1\n"
393 "#define GL_KHR_shader_subgroup_ballot 1\n"
394 "#define GL_KHR_shader_subgroup_shuffle 1\n"
395 "#define GL_KHR_shader_subgroup_shuffle_relative 1\n"
396 "#define GL_KHR_shader_subgroup_clustered 1\n"
397 "#define GL_KHR_shader_subgroup_quad 1\n"
398
399 "#define E_GL_EXT_shader_atomic_int64 1\n"
400
401 #ifdef AMD_EXTENSIONS
402 "#define GL_AMD_shader_ballot 1\n"
403 "#define GL_AMD_shader_trinary_minmax 1\n"
404 "#define GL_AMD_shader_explicit_vertex_parameter 1\n"
405 "#define GL_AMD_gcn_shader 1\n"
406 "#define GL_AMD_gpu_shader_half_float 1\n"
407 "#define GL_AMD_texture_gather_bias_lod 1\n"
408 "#define GL_AMD_gpu_shader_int16 1\n"
409 "#define GL_AMD_shader_image_load_store_lod 1\n"
410 "#define GL_AMD_shader_fragment_mask 1\n"
411 "#define GL_AMD_gpu_shader_half_float_fetch 1\n"
412 #endif
413
414 #ifdef NV_EXTENSIONS
415 "#define GL_NV_sample_mask_override_coverage 1\n"
416 "#define GL_NV_geometry_shader_passthrough 1\n"
417 "#define GL_NV_viewport_array2 1\n"
418 "#define GL_NV_shader_atomic_int64 1\n"
419 "#define GL_NV_conservative_raster_underestimation 1\n"
420 "#define GL_NV_shader_subgroup_partitioned 1\n"
421 "#define GL_NV_shading_rate_image 1\n"
422 "#define GL_NV_ray_tracing 1\n"
423 "#define GL_NV_fragment_shader_barycentric 1\n"
424 "#define GL_NV_compute_shader_derivatives 1\n"
425 "#define GL_NV_shader_texture_footprint 1\n"
426 "#define GL_NV_mesh_shader 1\n"
427 #endif
428 "#define GL_EXT_shader_explicit_arithmetic_types 1\n"
429 "#define GL_EXT_shader_explicit_arithmetic_types_int8 1\n"
430 "#define GL_EXT_shader_explicit_arithmetic_types_int16 1\n"
431 "#define GL_EXT_shader_explicit_arithmetic_types_int32 1\n"
432 "#define GL_EXT_shader_explicit_arithmetic_types_int64 1\n"
433 "#define GL_EXT_shader_explicit_arithmetic_types_float16 1\n"
434 "#define GL_EXT_shader_explicit_arithmetic_types_float32 1\n"
435 "#define GL_EXT_shader_explicit_arithmetic_types_float64 1\n"
436 ;
437
438 if (version >= 150) {
439 // define GL_core_profile and GL_compatibility_profile
440 preamble += "#define GL_core_profile 1\n";
441
442 if (profile == ECompatibilityProfile)
443 preamble += "#define GL_compatibility_profile 1\n";
444 }
445 }
446
447 if ((profile != EEsProfile && version >= 140) ||
448 (profile == EEsProfile && version >= 310)) {
449 preamble +=
450 "#define GL_EXT_device_group 1\n"
451 "#define GL_EXT_multiview 1\n"
452 ;
453 }
454
455 if (version >= 300 /* both ES and non-ES */) {
456 preamble +=
457 "#define GL_OVR_multiview 1\n"
458 "#define GL_OVR_multiview2 1\n"
459 ;
460 }
461
462 // #line and #include
463 preamble +=
464 "#define GL_GOOGLE_cpp_style_line_directive 1\n"
465 "#define GL_GOOGLE_include_directive 1\n"
466 ;
467
468 // #define VULKAN XXXX
469 const int numberBufSize = 12;
470 char numberBuf[numberBufSize];
471 if (spvVersion.vulkanGlsl > 0) {
472 preamble += "#define VULKAN ";
473 snprintf(numberBuf, numberBufSize, "%d", spvVersion.vulkanGlsl);
474 preamble += numberBuf;
475 preamble += "\n";
476 }
477 // #define GL_SPIRV XXXX
478 if (spvVersion.openGl > 0) {
479 preamble += "#define GL_SPIRV ";
480 snprintf(numberBuf, numberBufSize, "%d", spvVersion.openGl);
481 preamble += numberBuf;
482 preamble += "\n";
483 }
484
485 }
486
487 //
488 // When to use requireProfile():
489 //
490 // Use if only some profiles support a feature. However, if within a profile the feature
491 // is version or extension specific, follow this call with calls to profileRequires().
492 //
493 // Operation: If the current profile is not one of the profileMask,
494 // give an error message.
495 //
requireProfile(const TSourceLoc & loc,int profileMask,const char * featureDesc)496 void TParseVersions::requireProfile(const TSourceLoc& loc, int profileMask, const char* featureDesc)
497 {
498 if (! (profile & profileMask))
499 error(loc, "not supported with this profile:", featureDesc, ProfileName(profile));
500 }
501
502 //
503 // Map from stage enum to externally readable text name.
504 //
StageName(EShLanguage stage)505 const char* StageName(EShLanguage stage)
506 {
507 switch(stage) {
508 case EShLangVertex: return "vertex";
509 case EShLangTessControl: return "tessellation control";
510 case EShLangTessEvaluation: return "tessellation evaluation";
511 case EShLangGeometry: return "geometry";
512 case EShLangFragment: return "fragment";
513 case EShLangCompute: return "compute";
514 #ifdef NV_EXTENSIONS
515 case EShLangRayGenNV: return "ray-generation";
516 case EShLangIntersectNV: return "intersection";
517 case EShLangAnyHitNV: return "any-hit";
518 case EShLangClosestHitNV: return "closest-hit";
519 case EShLangMissNV: return "miss";
520 case EShLangCallableNV: return "callable";
521 case EShLangMeshNV: return "mesh";
522 case EShLangTaskNV: return "task";
523 #endif
524 default: return "unknown stage";
525 }
526 }
527
528 //
529 // When to use profileRequires():
530 //
531 // If a set of profiles have the same requirements for what version or extensions
532 // are needed to support a feature.
533 //
534 // It must be called for each profile that needs protection. Use requireProfile() first
535 // to reduce that set of profiles.
536 //
537 // Operation: Will issue warnings/errors based on the current profile, version, and extension
538 // behaviors. It only checks extensions when the current profile is one of the profileMask.
539 //
540 // A minVersion of 0 means no version of the profileMask support this in core,
541 // the extension must be present.
542 //
543
544 // entry point that takes multiple extensions
profileRequires(const TSourceLoc & loc,int profileMask,int minVersion,int numExtensions,const char * const extensions[],const char * featureDesc)545 void TParseVersions::profileRequires(const TSourceLoc& loc, int profileMask, int minVersion, int numExtensions, const char* const extensions[], const char* featureDesc)
546 {
547 if (profile & profileMask) {
548 bool okay = false;
549 if (minVersion > 0 && version >= minVersion)
550 okay = true;
551 for (int i = 0; i < numExtensions; ++i) {
552 switch (getExtensionBehavior(extensions[i])) {
553 case EBhWarn:
554 infoSink.info.message(EPrefixWarning, ("extension " + TString(extensions[i]) + " is being used for " + featureDesc).c_str(), loc);
555 // fall through
556 case EBhRequire:
557 case EBhEnable:
558 okay = true;
559 break;
560 default: break; // some compilers want this
561 }
562 }
563
564 if (! okay)
565 error(loc, "not supported for this version or the enabled extensions", featureDesc, "");
566 }
567 }
568
569 // entry point for the above that takes a single extension
profileRequires(const TSourceLoc & loc,int profileMask,int minVersion,const char * extension,const char * featureDesc)570 void TParseVersions::profileRequires(const TSourceLoc& loc, int profileMask, int minVersion, const char* extension, const char* featureDesc)
571 {
572 profileRequires(loc, profileMask, minVersion, extension ? 1 : 0, &extension, featureDesc);
573 }
574
575 //
576 // When to use requireStage()
577 //
578 // If only some stages support a feature.
579 //
580 // Operation: If the current stage is not present, give an error message.
581 //
requireStage(const TSourceLoc & loc,EShLanguageMask languageMask,const char * featureDesc)582 void TParseVersions::requireStage(const TSourceLoc& loc, EShLanguageMask languageMask, const char* featureDesc)
583 {
584 if (((1 << language) & languageMask) == 0)
585 error(loc, "not supported in this stage:", featureDesc, StageName(language));
586 }
587
588 // If only one stage supports a feature, this can be called. But, all supporting stages
589 // must be specified with one call.
requireStage(const TSourceLoc & loc,EShLanguage stage,const char * featureDesc)590 void TParseVersions::requireStage(const TSourceLoc& loc, EShLanguage stage, const char* featureDesc)
591 {
592 requireStage(loc, static_cast<EShLanguageMask>(1 << stage), featureDesc);
593 }
594
595 //
596 // Within a set of profiles, see if a feature is deprecated and give an error or warning based on whether
597 // a future compatibility context is being use.
598 //
checkDeprecated(const TSourceLoc & loc,int profileMask,int depVersion,const char * featureDesc)599 void TParseVersions::checkDeprecated(const TSourceLoc& loc, int profileMask, int depVersion, const char* featureDesc)
600 {
601 if (profile & profileMask) {
602 if (version >= depVersion) {
603 if (forwardCompatible)
604 error(loc, "deprecated, may be removed in future release", featureDesc, "");
605 else if (! suppressWarnings())
606 infoSink.info.message(EPrefixWarning, (TString(featureDesc) + " deprecated in version " +
607 String(depVersion) + "; may be removed in future release").c_str(), loc);
608 }
609 }
610 }
611
612 //
613 // Within a set of profiles, see if a feature has now been removed and if so, give an error.
614 // The version argument is the first version no longer having the feature.
615 //
requireNotRemoved(const TSourceLoc & loc,int profileMask,int removedVersion,const char * featureDesc)616 void TParseVersions::requireNotRemoved(const TSourceLoc& loc, int profileMask, int removedVersion, const char* featureDesc)
617 {
618 if (profile & profileMask) {
619 if (version >= removedVersion) {
620 const int maxSize = 60;
621 char buf[maxSize];
622 snprintf(buf, maxSize, "%s profile; removed in version %d", ProfileName(profile), removedVersion);
623 error(loc, "no longer supported in", featureDesc, buf);
624 }
625 }
626 }
627
unimplemented(const TSourceLoc & loc,const char * featureDesc)628 void TParseVersions::unimplemented(const TSourceLoc& loc, const char* featureDesc)
629 {
630 error(loc, "feature not yet implemented", featureDesc, "");
631 }
632
633 // Returns true if at least one of the extensions in the extensions parameter is requested. Otherwise, returns false.
634 // Warns appropriately if the requested behavior of an extension is "warn".
checkExtensionsRequested(const TSourceLoc & loc,int numExtensions,const char * const extensions[],const char * featureDesc)635 bool TParseVersions::checkExtensionsRequested(const TSourceLoc& loc, int numExtensions, const char* const extensions[], const char* featureDesc)
636 {
637 // First, see if any of the extensions are enabled
638 for (int i = 0; i < numExtensions; ++i) {
639 TExtensionBehavior behavior = getExtensionBehavior(extensions[i]);
640 if (behavior == EBhEnable || behavior == EBhRequire)
641 return true;
642 }
643
644 // See if any extensions want to give a warning on use; give warnings for all such extensions
645 bool warned = false;
646 for (int i = 0; i < numExtensions; ++i) {
647 TExtensionBehavior behavior = getExtensionBehavior(extensions[i]);
648 if (behavior == EBhDisable && relaxedErrors()) {
649 infoSink.info.message(EPrefixWarning, "The following extension must be enabled to use this feature:", loc);
650 behavior = EBhWarn;
651 }
652 if (behavior == EBhWarn) {
653 infoSink.info.message(EPrefixWarning, ("extension " + TString(extensions[i]) + " is being used for " + featureDesc).c_str(), loc);
654 warned = true;
655 }
656 }
657 if (warned)
658 return true;
659 return false;
660 }
661
662 //
663 // Use when there are no profile/version to check, it's just an error if one of the
664 // extensions is not present.
665 //
requireExtensions(const TSourceLoc & loc,int numExtensions,const char * const extensions[],const char * featureDesc)666 void TParseVersions::requireExtensions(const TSourceLoc& loc, int numExtensions, const char* const extensions[], const char* featureDesc)
667 {
668 if (checkExtensionsRequested(loc, numExtensions, extensions, featureDesc))
669 return;
670
671 // If we get this far, give errors explaining what extensions are needed
672 if (numExtensions == 1)
673 error(loc, "required extension not requested:", featureDesc, extensions[0]);
674 else {
675 error(loc, "required extension not requested:", featureDesc, "Possible extensions include:");
676 for (int i = 0; i < numExtensions; ++i)
677 infoSink.info.message(EPrefixNone, extensions[i]);
678 }
679 }
680
681 //
682 // Use by preprocessor when there are no profile/version to check, it's just an error if one of the
683 // extensions is not present.
684 //
ppRequireExtensions(const TSourceLoc & loc,int numExtensions,const char * const extensions[],const char * featureDesc)685 void TParseVersions::ppRequireExtensions(const TSourceLoc& loc, int numExtensions, const char* const extensions[], const char* featureDesc)
686 {
687 if (checkExtensionsRequested(loc, numExtensions, extensions, featureDesc))
688 return;
689
690 // If we get this far, give errors explaining what extensions are needed
691 if (numExtensions == 1)
692 ppError(loc, "required extension not requested:", featureDesc, extensions[0]);
693 else {
694 ppError(loc, "required extension not requested:", featureDesc, "Possible extensions include:");
695 for (int i = 0; i < numExtensions; ++i)
696 infoSink.info.message(EPrefixNone, extensions[i]);
697 }
698 }
699
getExtensionBehavior(const char * extension)700 TExtensionBehavior TParseVersions::getExtensionBehavior(const char* extension)
701 {
702 auto iter = extensionBehavior.find(TString(extension));
703 if (iter == extensionBehavior.end())
704 return EBhMissing;
705 else
706 return iter->second;
707 }
708
709 // Returns true if the given extension is set to enable, require, or warn.
extensionTurnedOn(const char * const extension)710 bool TParseVersions::extensionTurnedOn(const char* const extension)
711 {
712 switch (getExtensionBehavior(extension)) {
713 case EBhEnable:
714 case EBhRequire:
715 case EBhWarn:
716 return true;
717 default:
718 break;
719 }
720 return false;
721 }
722 // See if any of the extensions are set to enable, require, or warn.
extensionsTurnedOn(int numExtensions,const char * const extensions[])723 bool TParseVersions::extensionsTurnedOn(int numExtensions, const char* const extensions[])
724 {
725 for (int i = 0; i < numExtensions; ++i) {
726 if (extensionTurnedOn(extensions[i]))
727 return true;
728 }
729 return false;
730 }
731
732 //
733 // Change the current state of an extension's behavior.
734 //
updateExtensionBehavior(int line,const char * extension,const char * behaviorString)735 void TParseVersions::updateExtensionBehavior(int line, const char* extension, const char* behaviorString)
736 {
737 // Translate from text string of extension's behavior to an enum.
738 TExtensionBehavior behavior = EBhDisable;
739 if (! strcmp("require", behaviorString))
740 behavior = EBhRequire;
741 else if (! strcmp("enable", behaviorString))
742 behavior = EBhEnable;
743 else if (! strcmp("disable", behaviorString))
744 behavior = EBhDisable;
745 else if (! strcmp("warn", behaviorString))
746 behavior = EBhWarn;
747 else {
748 error(getCurrentLoc(), "behavior not supported:", "#extension", behaviorString);
749 return;
750 }
751
752 // check if extension is used with correct shader stage
753 checkExtensionStage(getCurrentLoc(), extension);
754
755 // update the requested extension
756 updateExtensionBehavior(extension, behavior);
757
758 // see if need to propagate to implicitly modified things
759 if (strcmp(extension, "GL_ANDROID_extension_pack_es31a") == 0) {
760 // to everything in AEP
761 updateExtensionBehavior(line, "GL_KHR_blend_equation_advanced", behaviorString);
762 updateExtensionBehavior(line, "GL_OES_sample_variables", behaviorString);
763 updateExtensionBehavior(line, "GL_OES_shader_image_atomic", behaviorString);
764 updateExtensionBehavior(line, "GL_OES_shader_multisample_interpolation", behaviorString);
765 updateExtensionBehavior(line, "GL_OES_texture_storage_multisample_2d_array", behaviorString);
766 updateExtensionBehavior(line, "GL_EXT_geometry_shader", behaviorString);
767 updateExtensionBehavior(line, "GL_EXT_gpu_shader5", behaviorString);
768 updateExtensionBehavior(line, "GL_EXT_primitive_bounding_box", behaviorString);
769 updateExtensionBehavior(line, "GL_EXT_shader_io_blocks", behaviorString);
770 updateExtensionBehavior(line, "GL_EXT_tessellation_shader", behaviorString);
771 updateExtensionBehavior(line, "GL_EXT_texture_buffer", behaviorString);
772 updateExtensionBehavior(line, "GL_EXT_texture_cube_map_array", behaviorString);
773 }
774 // geometry to io_blocks
775 else if (strcmp(extension, "GL_EXT_geometry_shader") == 0)
776 updateExtensionBehavior(line, "GL_EXT_shader_io_blocks", behaviorString);
777 else if (strcmp(extension, "GL_OES_geometry_shader") == 0)
778 updateExtensionBehavior(line, "GL_OES_shader_io_blocks", behaviorString);
779 // tessellation to io_blocks
780 else if (strcmp(extension, "GL_EXT_tessellation_shader") == 0)
781 updateExtensionBehavior(line, "GL_EXT_shader_io_blocks", behaviorString);
782 else if (strcmp(extension, "GL_OES_tessellation_shader") == 0)
783 updateExtensionBehavior(line, "GL_OES_shader_io_blocks", behaviorString);
784 else if (strcmp(extension, "GL_GOOGLE_include_directive") == 0)
785 updateExtensionBehavior(line, "GL_GOOGLE_cpp_style_line_directive", behaviorString);
786 // subgroup_* to subgroup_basic
787 else if (strcmp(extension, "GL_KHR_shader_subgroup_vote") == 0)
788 updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
789 else if (strcmp(extension, "GL_KHR_shader_subgroup_arithmetic") == 0)
790 updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
791 else if (strcmp(extension, "GL_KHR_shader_subgroup_ballot") == 0)
792 updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
793 else if (strcmp(extension, "GL_KHR_shader_subgroup_shuffle") == 0)
794 updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
795 else if (strcmp(extension, "GL_KHR_shader_subgroup_shuffle_relative") == 0)
796 updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
797 else if (strcmp(extension, "GL_KHR_shader_subgroup_clustered") == 0)
798 updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
799 else if (strcmp(extension, "GL_KHR_shader_subgroup_quad") == 0)
800 updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
801 #ifdef NV_EXTENSIONS
802 else if (strcmp(extension, "GL_NV_shader_subgroup_partitioned") == 0)
803 updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
804 #endif
805 }
806
updateExtensionBehavior(const char * extension,TExtensionBehavior behavior)807 void TParseVersions::updateExtensionBehavior(const char* extension, TExtensionBehavior behavior)
808 {
809 // Update the current behavior
810 if (strcmp(extension, "all") == 0) {
811 // special case for the 'all' extension; apply it to every extension present
812 if (behavior == EBhRequire || behavior == EBhEnable) {
813 error(getCurrentLoc(), "extension 'all' cannot have 'require' or 'enable' behavior", "#extension", "");
814 return;
815 } else {
816 for (auto iter = extensionBehavior.begin(); iter != extensionBehavior.end(); ++iter)
817 iter->second = behavior;
818 }
819 } else {
820 // Do the update for this single extension
821 auto iter = extensionBehavior.find(TString(extension));
822 if (iter == extensionBehavior.end()) {
823 switch (behavior) {
824 case EBhRequire:
825 error(getCurrentLoc(), "extension not supported:", "#extension", extension);
826 break;
827 case EBhEnable:
828 case EBhWarn:
829 case EBhDisable:
830 warn(getCurrentLoc(), "extension not supported:", "#extension", extension);
831 break;
832 default:
833 assert(0 && "unexpected behavior");
834 }
835
836 return;
837 } else {
838 if (iter->second == EBhDisablePartial)
839 warn(getCurrentLoc(), "extension is only partially supported:", "#extension", extension);
840 if (behavior == EBhEnable || behavior == EBhRequire)
841 intermediate.addRequestedExtension(extension);
842 iter->second = behavior;
843 }
844 }
845 }
846
847 // Check if extension is used with correct shader stage.
checkExtensionStage(const TSourceLoc & loc,const char * const extension)848 void TParseVersions::checkExtensionStage(const TSourceLoc& loc, const char * const extension)
849 {
850 #ifdef NV_EXTENSIONS
851 // GL_NV_mesh_shader extension is only allowed in task/mesh shaders
852 if (strcmp(extension, "GL_NV_mesh_shader") == 0) {
853 requireStage(loc, (EShLanguageMask)(EShLangTaskNVMask | EShLangMeshNVMask | EShLangFragmentMask),
854 "#extension GL_NV_mesh_shader");
855 profileRequires(loc, ECoreProfile, 450, 0, "#extension GL_NV_mesh_shader");
856 profileRequires(loc, EEsProfile, 320, 0, "#extension GL_NV_mesh_shader");
857 }
858 #endif
859 }
860
861 // Call for any operation needing full GLSL integer data-type support.
fullIntegerCheck(const TSourceLoc & loc,const char * op)862 void TParseVersions::fullIntegerCheck(const TSourceLoc& loc, const char* op)
863 {
864 profileRequires(loc, ENoProfile, 130, nullptr, op);
865 profileRequires(loc, EEsProfile, 300, nullptr, op);
866 }
867
868 // Call for any operation needing GLSL double data-type support.
doubleCheck(const TSourceLoc & loc,const char * op)869 void TParseVersions::doubleCheck(const TSourceLoc& loc, const char* op)
870 {
871 requireProfile(loc, ECoreProfile | ECompatibilityProfile, op);
872 profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, nullptr, op);
873 }
874
875 // Call for any operation needing GLSL float16 data-type support.
float16Check(const TSourceLoc & loc,const char * op,bool builtIn)876 void TParseVersions::float16Check(const TSourceLoc& loc, const char* op, bool builtIn)
877 {
878 if (!builtIn) {
879 const char* const extensions[] = {
880 #if AMD_EXTENSIONS
881 E_GL_AMD_gpu_shader_half_float,
882 #endif
883 E_GL_EXT_shader_explicit_arithmetic_types,
884 E_GL_EXT_shader_explicit_arithmetic_types_float16};
885 requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
886 }
887 }
888
float16Arithmetic()889 bool TParseVersions::float16Arithmetic()
890 {
891 const char* const extensions[] = {
892 #if AMD_EXTENSIONS
893 E_GL_AMD_gpu_shader_half_float,
894 #endif
895 E_GL_EXT_shader_explicit_arithmetic_types,
896 E_GL_EXT_shader_explicit_arithmetic_types_float16};
897 return extensionsTurnedOn(sizeof(extensions)/sizeof(extensions[0]), extensions);
898 }
899
int16Arithmetic()900 bool TParseVersions::int16Arithmetic()
901 {
902 const char* const extensions[] = {
903 #if AMD_EXTENSIONS
904 E_GL_AMD_gpu_shader_int16,
905 #endif
906 E_GL_EXT_shader_explicit_arithmetic_types,
907 E_GL_EXT_shader_explicit_arithmetic_types_int16};
908 return extensionsTurnedOn(sizeof(extensions)/sizeof(extensions[0]), extensions);
909 }
910
int8Arithmetic()911 bool TParseVersions::int8Arithmetic()
912 {
913 const char* const extensions[] = {
914 E_GL_EXT_shader_explicit_arithmetic_types,
915 E_GL_EXT_shader_explicit_arithmetic_types_int8};
916 return extensionsTurnedOn(sizeof(extensions)/sizeof(extensions[0]), extensions);
917 }
918
requireFloat16Arithmetic(const TSourceLoc & loc,const char * op,const char * featureDesc)919 void TParseVersions::requireFloat16Arithmetic(const TSourceLoc& loc, const char* op, const char* featureDesc)
920 {
921 TString combined;
922 combined = op;
923 combined += ": ";
924 combined += featureDesc;
925
926 const char* const extensions[] = {
927 #if AMD_EXTENSIONS
928 E_GL_AMD_gpu_shader_half_float,
929 #endif
930 E_GL_EXT_shader_explicit_arithmetic_types,
931 E_GL_EXT_shader_explicit_arithmetic_types_float16};
932 requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, combined.c_str());
933 }
934
requireInt16Arithmetic(const TSourceLoc & loc,const char * op,const char * featureDesc)935 void TParseVersions::requireInt16Arithmetic(const TSourceLoc& loc, const char* op, const char* featureDesc)
936 {
937 TString combined;
938 combined = op;
939 combined += ": ";
940 combined += featureDesc;
941
942 const char* const extensions[] = {
943 #if AMD_EXTENSIONS
944 E_GL_AMD_gpu_shader_int16,
945 #endif
946 E_GL_EXT_shader_explicit_arithmetic_types,
947 E_GL_EXT_shader_explicit_arithmetic_types_int16};
948 requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, combined.c_str());
949 }
950
requireInt8Arithmetic(const TSourceLoc & loc,const char * op,const char * featureDesc)951 void TParseVersions::requireInt8Arithmetic(const TSourceLoc& loc, const char* op, const char* featureDesc)
952 {
953 TString combined;
954 combined = op;
955 combined += ": ";
956 combined += featureDesc;
957
958 const char* const extensions[] = {
959 E_GL_EXT_shader_explicit_arithmetic_types,
960 E_GL_EXT_shader_explicit_arithmetic_types_int8};
961 requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, combined.c_str());
962 }
963
float16ScalarVectorCheck(const TSourceLoc & loc,const char * op,bool builtIn)964 void TParseVersions::float16ScalarVectorCheck(const TSourceLoc& loc, const char* op, bool builtIn)
965 {
966 if (!builtIn) {
967 const char* const extensions[] = {
968 #if AMD_EXTENSIONS
969 E_GL_AMD_gpu_shader_half_float,
970 #endif
971 E_GL_EXT_shader_16bit_storage,
972 E_GL_EXT_shader_explicit_arithmetic_types,
973 E_GL_EXT_shader_explicit_arithmetic_types_float16};
974 requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
975 }
976 }
977
978 // Call for any operation needing GLSL float32 data-type support.
explicitFloat32Check(const TSourceLoc & loc,const char * op,bool builtIn)979 void TParseVersions::explicitFloat32Check(const TSourceLoc& loc, const char* op, bool builtIn)
980 {
981 if (!builtIn) {
982 const char* const extensions[2] = {E_GL_EXT_shader_explicit_arithmetic_types,
983 E_GL_EXT_shader_explicit_arithmetic_types_float32};
984 requireExtensions(loc, 2, extensions, op);
985 }
986 }
987
988 // Call for any operation needing GLSL float64 data-type support.
explicitFloat64Check(const TSourceLoc & loc,const char * op,bool builtIn)989 void TParseVersions::explicitFloat64Check(const TSourceLoc& loc, const char* op, bool builtIn)
990 {
991 if (!builtIn) {
992 const char* const extensions[2] = {E_GL_EXT_shader_explicit_arithmetic_types,
993 E_GL_EXT_shader_explicit_arithmetic_types_float64};
994 requireExtensions(loc, 2, extensions, op);
995 requireProfile(loc, ECoreProfile | ECompatibilityProfile, op);
996 profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, nullptr, op);
997 }
998 }
999
1000 // Call for any operation needing GLSL explicit int8 data-type support.
explicitInt8Check(const TSourceLoc & loc,const char * op,bool builtIn)1001 void TParseVersions::explicitInt8Check(const TSourceLoc& loc, const char* op, bool builtIn)
1002 {
1003 if (! builtIn) {
1004 const char* const extensions[2] = {E_GL_EXT_shader_explicit_arithmetic_types,
1005 E_GL_EXT_shader_explicit_arithmetic_types_int8};
1006 requireExtensions(loc, 2, extensions, op);
1007 }
1008 }
1009
1010 #ifdef AMD_EXTENSIONS
1011 // Call for any operation needing GLSL float16 opaque-type support
float16OpaqueCheck(const TSourceLoc & loc,const char * op,bool builtIn)1012 void TParseVersions::float16OpaqueCheck(const TSourceLoc& loc, const char* op, bool builtIn)
1013 {
1014 if (! builtIn) {
1015 requireExtensions(loc, 1, &E_GL_AMD_gpu_shader_half_float_fetch, op);
1016 requireProfile(loc, ECoreProfile | ECompatibilityProfile, op);
1017 profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, nullptr, op);
1018 }
1019 }
1020 #endif
1021
1022 // Call for any operation needing GLSL explicit int16 data-type support.
explicitInt16Check(const TSourceLoc & loc,const char * op,bool builtIn)1023 void TParseVersions::explicitInt16Check(const TSourceLoc& loc, const char* op, bool builtIn)
1024 {
1025 if (! builtIn) {
1026 const char* const extensions[] = {
1027 #if AMD_EXTENSIONS
1028 E_GL_AMD_gpu_shader_int16,
1029 #endif
1030 E_GL_EXT_shader_explicit_arithmetic_types,
1031 E_GL_EXT_shader_explicit_arithmetic_types_int16};
1032 requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
1033 }
1034 }
1035
int16ScalarVectorCheck(const TSourceLoc & loc,const char * op,bool builtIn)1036 void TParseVersions::int16ScalarVectorCheck(const TSourceLoc& loc, const char* op, bool builtIn)
1037 {
1038 if (! builtIn) {
1039 const char* const extensions[] = {
1040 #if AMD_EXTENSIONS
1041 E_GL_AMD_gpu_shader_int16,
1042 #endif
1043 E_GL_EXT_shader_16bit_storage,
1044 E_GL_EXT_shader_explicit_arithmetic_types,
1045 E_GL_EXT_shader_explicit_arithmetic_types_int16};
1046 requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
1047 }
1048 }
1049
int8ScalarVectorCheck(const TSourceLoc & loc,const char * op,bool builtIn)1050 void TParseVersions::int8ScalarVectorCheck(const TSourceLoc& loc, const char* op, bool builtIn)
1051 {
1052 if (! builtIn) {
1053 const char* const extensions[] = {
1054 E_GL_EXT_shader_8bit_storage,
1055 E_GL_EXT_shader_explicit_arithmetic_types,
1056 E_GL_EXT_shader_explicit_arithmetic_types_int8};
1057 requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
1058 }
1059 }
1060
1061 // Call for any operation needing GLSL explicit int32 data-type support.
explicitInt32Check(const TSourceLoc & loc,const char * op,bool builtIn)1062 void TParseVersions::explicitInt32Check(const TSourceLoc& loc, const char* op, bool builtIn)
1063 {
1064 if (! builtIn) {
1065 const char* const extensions[2] = {E_GL_EXT_shader_explicit_arithmetic_types,
1066 E_GL_EXT_shader_explicit_arithmetic_types_int32};
1067 requireExtensions(loc, 2, extensions, op);
1068 }
1069 }
1070
1071 // Call for any operation needing GLSL 64-bit integer data-type support.
int64Check(const TSourceLoc & loc,const char * op,bool builtIn)1072 void TParseVersions::int64Check(const TSourceLoc& loc, const char* op, bool builtIn)
1073 {
1074 if (! builtIn) {
1075 const char* const extensions[3] = {E_GL_ARB_gpu_shader_int64,
1076 E_GL_EXT_shader_explicit_arithmetic_types,
1077 E_GL_EXT_shader_explicit_arithmetic_types_int64};
1078 requireExtensions(loc, 3, extensions, op);
1079 requireProfile(loc, ECoreProfile | ECompatibilityProfile, op);
1080 profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, nullptr, op);
1081 }
1082 }
1083
1084 // Call for any operation removed because SPIR-V is in use.
spvRemoved(const TSourceLoc & loc,const char * op)1085 void TParseVersions::spvRemoved(const TSourceLoc& loc, const char* op)
1086 {
1087 if (spvVersion.spv != 0)
1088 error(loc, "not allowed when generating SPIR-V", op, "");
1089 }
1090
1091 // Call for any operation removed because Vulkan SPIR-V is being generated.
vulkanRemoved(const TSourceLoc & loc,const char * op)1092 void TParseVersions::vulkanRemoved(const TSourceLoc& loc, const char* op)
1093 {
1094 if (spvVersion.vulkan > 0)
1095 error(loc, "not allowed when using GLSL for Vulkan", op, "");
1096 }
1097
1098 // Call for any operation that requires Vulkan.
requireVulkan(const TSourceLoc & loc,const char * op)1099 void TParseVersions::requireVulkan(const TSourceLoc& loc, const char* op)
1100 {
1101 if (spvVersion.vulkan == 0)
1102 error(loc, "only allowed when using GLSL for Vulkan", op, "");
1103 }
1104
1105 // Call for any operation that requires SPIR-V.
requireSpv(const TSourceLoc & loc,const char * op)1106 void TParseVersions::requireSpv(const TSourceLoc& loc, const char* op)
1107 {
1108 if (spvVersion.spv == 0)
1109 error(loc, "only allowed when generating SPIR-V", op, "");
1110 }
1111
1112 } // end namespace glslang
1113