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+//
+//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
+//Copyright (C) 2012-2013 LunarG, Inc.
+//
+//All rights reserved.
+//
+//Redistribution and use in source and binary forms, with or without
+//modification, are permitted provided that the following conditions
+//are met:
+//
+// Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+//
+// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+//POSSIBILITY OF SUCH DAMAGE.
+//
+#ifndef _VERSIONS_INCLUDED_
+#define _VERSIONS_INCLUDED_
+
+//
+// Help manage multiple profiles, versions, extensions etc.
+//
+
+//
+// Profiles are set up for masking operations, so queries can be done on multiple
+// profiles at the same time.
+//
+// Don't maintain an ordinal set of enums (0,1,2,3...) to avoid all possible
+// defects from mixing the two different forms.
+//
+typedef enum {
+ EBadProfile = 0,
+ ENoProfile = (1 << 0), // only for desktop, before profiles showed up
+ ECoreProfile = (1 << 1),
+ ECompatibilityProfile = (1 << 2),
+ EEsProfile = (1 << 3)
+} EProfile;
+
+namespace glslang {
+
+//
+// Map from profile enum to externally readable text name.
+//
+inline const char* ProfileName(EProfile profile)
+{
+ switch (profile) {
+ case ENoProfile: return "none";
+ case ECoreProfile: return "core";
+ case ECompatibilityProfile: return "compatibility";
+ case EEsProfile: return "es";
+ default: return "unknown profile";
+ }
+}
+
+//
+// SPIR-V has versions for multiple things; tie them together.
+// 0 means a target or rule set is not enabled.
+//
+struct SpvVersion {
+ SpvVersion() : spv(0), vulkan(0), openGl(0) {}
+ unsigned int spv; // the version of the targeted SPIR-V, as defined by SPIR-V in word 1 of the SPIR-V binary header
+ int vulkan; // the version of semantics for Vulkan; e.g., for GLSL from KHR_vulkan_glsl "#define VULKAN"
+ int openGl; // the version of semantics for OpenGL; e.g., for GLSL from KHR_vulkan_glsl "#define GL_SPIRV"
+};
+
+//
+// The behaviors from the GLSL "#extension extension_name : behavior"
+//
+typedef enum {
+ EBhMissing = 0,
+ EBhRequire,
+ EBhEnable,
+ EBhWarn,
+ EBhDisable,
+ EBhDisablePartial // use as initial state of an extension that is only partially implemented
+} TExtensionBehavior;
+
+//
+// Symbolic names for extensions. Strings may be directly used when calling the
+// functions, but better to have the compiler do spelling checks.
+//
+const char* const E_GL_OES_texture_3D = "GL_OES_texture_3D";
+const char* const E_GL_OES_standard_derivatives = "GL_OES_standard_derivatives";
+const char* const E_GL_EXT_frag_depth = "GL_EXT_frag_depth";
+const char* const E_GL_OES_EGL_image_external = "GL_OES_EGL_image_external";
+const char* const E_GL_EXT_shader_texture_lod = "GL_EXT_shader_texture_lod";
+
+const char* const E_GL_ARB_texture_rectangle = "GL_ARB_texture_rectangle";
+const char* const E_GL_3DL_array_objects = "GL_3DL_array_objects";
+const char* const E_GL_ARB_shading_language_420pack = "GL_ARB_shading_language_420pack";
+const char* const E_GL_ARB_texture_gather = "GL_ARB_texture_gather";
+const char* const E_GL_ARB_gpu_shader5 = "GL_ARB_gpu_shader5";
+const char* const E_GL_ARB_separate_shader_objects = "GL_ARB_separate_shader_objects";
+const char* const E_GL_ARB_compute_shader = "GL_ARB_compute_shader";
+const char* const E_GL_ARB_tessellation_shader = "GL_ARB_tessellation_shader";
+const char* const E_GL_ARB_enhanced_layouts = "GL_ARB_enhanced_layouts";
+const char* const E_GL_ARB_texture_cube_map_array = "GL_ARB_texture_cube_map_array";
+const char* const E_GL_ARB_shader_texture_lod = "GL_ARB_shader_texture_lod";
+const char* const E_GL_ARB_explicit_attrib_location = "GL_ARB_explicit_attrib_location";
+const char* const E_GL_ARB_shader_image_load_store = "GL_ARB_shader_image_load_store";
+const char* const E_GL_ARB_shader_atomic_counters = "GL_ARB_shader_atomic_counters";
+const char* const E_GL_ARB_shader_draw_parameters = "GL_ARB_shader_draw_parameters";
+const char* const E_GL_ARB_shader_group_vote = "GL_ARB_shader_group_vote";
+const char* const E_GL_ARB_derivative_control = "GL_ARB_derivative_control";
+const char* const E_GL_ARB_shader_texture_image_samples = "GL_ARB_shader_texture_image_samples";
+const char* const E_GL_ARB_viewport_array = "GL_ARB_viewport_array";
+const char* const E_GL_ARB_gpu_shader_int64 = "GL_ARB_gpu_shader_int64";
+const char* const E_GL_ARB_shader_ballot = "GL_ARB_shader_ballot";
+const char* const E_GL_ARB_sparse_texture2 = "GL_ARB_sparse_texture2";
+const char* const E_GL_ARB_sparse_texture_clamp = "GL_ARB_sparse_texture_clamp";
+//const char* const E_GL_ARB_cull_distance = "GL_ARB_cull_distance"; // present for 4.5, but need extension control over block members
+
+const char* const E_GL_EXT_shader_non_constant_global_initializers = "GL_EXT_shader_non_constant_global_initializers";
+
+// #line and #include
+const char* const E_GL_GOOGLE_cpp_style_line_directive = "GL_GOOGLE_cpp_style_line_directive";
+const char* const E_GL_GOOGLE_include_directive = "GL_GOOGLE_include_directive";
+
+#ifdef AMD_EXTENSIONS
+const char* const E_GL_AMD_shader_ballot = "GL_AMD_shader_ballot";
+const char* const E_GL_AMD_shader_trinary_minmax = "GL_AMD_shader_trinary_minmax";
+const char* const E_GL_AMD_shader_explicit_vertex_parameter = "GL_AMD_shader_explicit_vertex_parameter";
+const char* const E_GL_AMD_gcn_shader = "GL_AMD_gcn_shader";
+const char* const E_GL_AMD_gpu_shader_half_float = "GL_AMD_gpu_shader_half_float";
+#endif
+#ifdef NV_EXTENSIONS
+const char* const E_GL_NV_sample_mask_override_coverage = "GL_NV_sample_mask_override_coverage";
+const char* const E_SPV_NV_geometry_shader_passthrough = "GL_NV_geometry_shader_passthrough";
+#endif
+
+// AEP
+const char* const E_GL_ANDROID_extension_pack_es31a = "GL_ANDROID_extension_pack_es31a";
+const char* const E_GL_KHR_blend_equation_advanced = "GL_KHR_blend_equation_advanced";
+const char* const E_GL_OES_sample_variables = "GL_OES_sample_variables";
+const char* const E_GL_OES_shader_image_atomic = "GL_OES_shader_image_atomic";
+const char* const E_GL_OES_shader_multisample_interpolation = "GL_OES_shader_multisample_interpolation";
+const char* const E_GL_OES_texture_storage_multisample_2d_array = "GL_OES_texture_storage_multisample_2d_array";
+const char* const E_GL_EXT_geometry_shader = "GL_EXT_geometry_shader";
+const char* const E_GL_EXT_geometry_point_size = "GL_EXT_geometry_point_size";
+const char* const E_GL_EXT_gpu_shader5 = "GL_EXT_gpu_shader5";
+const char* const E_GL_EXT_primitive_bounding_box = "GL_EXT_primitive_bounding_box";
+const char* const E_GL_EXT_shader_io_blocks = "GL_EXT_shader_io_blocks";
+const char* const E_GL_EXT_tessellation_shader = "GL_EXT_tessellation_shader";
+const char* const E_GL_EXT_tessellation_point_size = "GL_EXT_tessellation_point_size";
+const char* const E_GL_EXT_texture_buffer = "GL_EXT_texture_buffer";
+const char* const E_GL_EXT_texture_cube_map_array = "GL_EXT_texture_cube_map_array";
+
+// OES matching AEP
+const char* const E_GL_OES_geometry_shader = "GL_OES_geometry_shader";
+const char* const E_GL_OES_geometry_point_size = "GL_OES_geometry_point_size";
+const char* const E_GL_OES_gpu_shader5 = "GL_OES_gpu_shader5";
+const char* const E_GL_OES_primitive_bounding_box = "GL_OES_primitive_bounding_box";
+const char* const E_GL_OES_shader_io_blocks = "GL_OES_shader_io_blocks";
+const char* const E_GL_OES_tessellation_shader = "GL_OES_tessellation_shader";
+const char* const E_GL_OES_tessellation_point_size = "GL_OES_tessellation_point_size";
+const char* const E_GL_OES_texture_buffer = "GL_OES_texture_buffer";
+const char* const E_GL_OES_texture_cube_map_array = "GL_OES_texture_cube_map_array";
+
+// Arrays of extensions for the above AEP duplications
+
+const char* const AEP_geometry_shader[] = { E_GL_EXT_geometry_shader, E_GL_OES_geometry_shader };
+const int Num_AEP_geometry_shader = sizeof(AEP_geometry_shader)/sizeof(AEP_geometry_shader[0]);
+
+const char* const AEP_geometry_point_size[] = { E_GL_EXT_geometry_point_size, E_GL_OES_geometry_point_size };
+const int Num_AEP_geometry_point_size = sizeof(AEP_geometry_point_size)/sizeof(AEP_geometry_point_size[0]);
+
+const char* const AEP_gpu_shader5[] = { E_GL_EXT_gpu_shader5, E_GL_OES_gpu_shader5 };
+const int Num_AEP_gpu_shader5 = sizeof(AEP_gpu_shader5)/sizeof(AEP_gpu_shader5[0]);
+
+const char* const AEP_primitive_bounding_box[] = { E_GL_EXT_primitive_bounding_box, E_GL_OES_primitive_bounding_box };
+const int Num_AEP_primitive_bounding_box = sizeof(AEP_primitive_bounding_box)/sizeof(AEP_primitive_bounding_box[0]);
+
+const char* const AEP_shader_io_blocks[] = { E_GL_EXT_shader_io_blocks, E_GL_OES_shader_io_blocks };
+const int Num_AEP_shader_io_blocks = sizeof(AEP_shader_io_blocks)/sizeof(AEP_shader_io_blocks[0]);
+
+const char* const AEP_tessellation_shader[] = { E_GL_EXT_tessellation_shader, E_GL_OES_tessellation_shader };
+const int Num_AEP_tessellation_shader = sizeof(AEP_tessellation_shader)/sizeof(AEP_tessellation_shader[0]);
+
+const char* const AEP_tessellation_point_size[] = { E_GL_EXT_tessellation_point_size, E_GL_OES_tessellation_point_size };
+const int Num_AEP_tessellation_point_size = sizeof(AEP_tessellation_point_size)/sizeof(AEP_tessellation_point_size[0]);
+
+const char* const AEP_texture_buffer[] = { E_GL_EXT_texture_buffer, E_GL_OES_texture_buffer };
+const int Num_AEP_texture_buffer = sizeof(AEP_texture_buffer)/sizeof(AEP_texture_buffer[0]);
+
+const char* const AEP_texture_cube_map_array[] = { E_GL_EXT_texture_cube_map_array, E_GL_OES_texture_cube_map_array };
+const int Num_AEP_texture_cube_map_array = sizeof(AEP_texture_cube_map_array)/sizeof(AEP_texture_cube_map_array[0]);
+
+} // end namespace glslang
+
+#endif // _VERSIONS_INCLUDED_