| // |
| // 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> |
| |
| #define LIST_EXTENSIONS(OP) \ |
| OP(ARB_texture_rectangle) \ |
| OP(ANGLE_texture_multisample) \ |
| OP(ARM_shader_framebuffer_fetch) \ |
| OP(EXT_blend_func_extended) \ |
| OP(EXT_draw_buffers) \ |
| OP(EXT_frag_depth) \ |
| OP(EXT_geometry_shader) \ |
| OP(EXT_gpu_shader5) \ |
| OP(EXT_shader_framebuffer_fetch) \ |
| OP(EXT_shader_texture_lod) \ |
| OP(EXT_YUV_target) \ |
| OP(NV_EGL_stream_consumer_external) \ |
| OP(NV_shader_framebuffer_fetch) \ |
| OP(OES_EGL_image_external) \ |
| OP(OES_EGL_image_external_essl3) \ |
| OP(OES_standard_derivatives) \ |
| OP(OES_texture_storage_multisample_2d_array) \ |
| OP(OES_texture_3D) \ |
| OP(OVR_multiview) \ |
| OP(OVR_multiview2) \ |
| OP(ANGLE_multi_draw) \ |
| OP(ANGLE_base_vertex_base_instance) \ |
| OP(WEBGL_video_texture) |
| |
| namespace sh |
| { |
| |
| #define RETURN_EXTENSION_NAME_CASE(ext) \ |
| 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) \ |
| 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; |
| } |
| |
| 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 |