| // |
| // 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 <string.h> |
| |
| // 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(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(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(EXT_texture_buffer, 310, 320) \ |
| OP(EXT_texture_cube_map_array, 310, 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 |