// // Copyright 2017 The ANGLE Project Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // // ExtensionBehavior.cpp: Extension name enumeration and data structures for storing extension // behavior. #include "compiler/translator/ExtensionBehavior.h" #include "common/debug.h" #include // clang-format off // Extension Name, Min ESSL Version, Max ESSL Version // // Note that OES_EGL_image_external and OES_texture_3D are ESSL 100 only extensions, but one app has // been found that uses them on GLSL 310. http://issuetracker.google.com/285871779 #define LIST_EXTENSIONS(OP) \ OP(ANDROID_extension_pack_es31a, 310, 320) \ OP(ANGLE_base_vertex_base_instance_shader_builtin, 300, 320) \ OP(ANGLE_clip_cull_distance, 300, 320) \ OP(ANGLE_multi_draw, 100, 320) \ OP(ANGLE_shader_pixel_local_storage, 300, 320) \ OP(ANGLE_texture_multisample, 300, 320) \ OP(APPLE_clip_distance, 100, 320) \ OP(ARB_texture_rectangle, 100, 320) \ OP(ARM_shader_framebuffer_fetch, 100, 320) \ OP(ARM_shader_framebuffer_fetch_depth_stencil, 100, 320) \ OP(EXT_blend_func_extended, 100, 320) \ OP(EXT_clip_cull_distance, 300, 320) \ OP(EXT_conservative_depth, 300, 320) \ OP(EXT_draw_buffers, 100, 100) \ OP(EXT_frag_depth, 100, 100) \ OP(EXT_geometry_shader, 310, 320) \ OP(OES_geometry_shader, 310, 320) \ OP(OES_shader_io_blocks, 310, 320) \ OP(EXT_shader_io_blocks, 310, 320) \ OP(EXT_gpu_shader5, 310, 320) \ OP(OES_gpu_shader5, 310, 320) \ OP(EXT_primitive_bounding_box, 310, 320) \ OP(OES_primitive_bounding_box, 310, 320) \ OP(EXT_separate_shader_objects, 100, 320) \ OP(EXT_shader_framebuffer_fetch, 100, 320) \ OP(EXT_shader_framebuffer_fetch_non_coherent, 100, 320) \ OP(EXT_shader_non_constant_global_initializers, 100, 320) \ OP(EXT_shader_texture_lod, 100, 100) \ OP(EXT_shadow_samplers, 100, 100) \ OP(EXT_tessellation_shader, 310, 320) \ OP(OES_tessellation_shader, 310, 320) \ OP(EXT_texture_buffer, 310, 320) \ OP(EXT_texture_cube_map_array, 310, 320) \ OP(EXT_texture_query_lod, 300, 320) \ OP(EXT_texture_shadow_lod, 300, 320) \ OP(EXT_YUV_target, 300, 320) \ OP(KHR_blend_equation_advanced, 100, 320) \ OP(NV_EGL_stream_consumer_external, 100, 320) \ OP(NV_shader_framebuffer_fetch, 100, 100) \ OP(NV_shader_noperspective_interpolation, 300, 320) \ OP(OES_EGL_image_external, 100, 310) \ OP(OES_EGL_image_external_essl3, 300, 320) \ OP(OES_sample_variables, 300, 320) \ OP(OES_shader_multisample_interpolation, 300, 320) \ OP(OES_shader_image_atomic, 310, 320) \ OP(OES_standard_derivatives, 100, 100) \ OP(OES_texture_3D, 100, 310) \ OP(OES_texture_buffer, 310, 320) \ OP(OES_texture_cube_map_array, 310, 320) \ OP(OES_texture_storage_multisample_2d_array, 310, 320) \ OP(OVR_multiview, 300, 320) \ OP(OVR_multiview2, 300, 320) \ OP(WEBGL_video_texture, 100, 320) // clang-format on namespace sh { #define RETURN_EXTENSION_NAME_CASE(ext, min_version, max_version) \ case TExtension::ext: \ return "GL_" #ext; const char *GetExtensionNameString(TExtension extension) { switch (extension) { LIST_EXTENSIONS(RETURN_EXTENSION_NAME_CASE) default: UNREACHABLE(); return ""; } } #define RETURN_EXTENSION_IF_NAME_MATCHES(ext, min_version, max_version) \ if (strcmp(extWithoutGLPrefix, #ext) == 0) \ { \ return TExtension::ext; \ } TExtension GetExtensionByName(const char *extension) { // If first characters of the extension don't equal "GL_", early out. if (strncmp(extension, "GL_", 3) != 0) { return TExtension::UNDEFINED; } const char *extWithoutGLPrefix = extension + 3; LIST_EXTENSIONS(RETURN_EXTENSION_IF_NAME_MATCHES) return TExtension::UNDEFINED; } #define RETURN_VERSION_CHECK(ext, min_version, max_version) \ case TExtension::ext: \ return (version >= min_version) && (version <= max_version); bool CheckExtensionVersion(TExtension extension, int version) { switch (extension) { LIST_EXTENSIONS(RETURN_VERSION_CHECK) default: UNREACHABLE(); return false; } } const char *GetBehaviorString(TBehavior b) { switch (b) { case EBhRequire: return "require"; case EBhEnable: return "enable"; case EBhWarn: return "warn"; case EBhDisable: return "disable"; default: return nullptr; } } bool IsExtensionEnabled(const TExtensionBehavior &extBehavior, TExtension extension) { ASSERT(extension != TExtension::UNDEFINED); auto iter = extBehavior.find(extension); return iter != extBehavior.end() && (iter->second == EBhEnable || iter->second == EBhRequire || iter->second == EBhWarn); } } // namespace sh