1 // 2 // Copyright 2017 The ANGLE Project Authors. All rights reserved. 3 // Use of this source code is governed by a BSD-style license that can be 4 // found in the LICENSE file. 5 // 6 // ExtensionBehavior.cpp: Extension name enumeration and data structures for storing extension 7 // behavior. 8 9 #include "compiler/translator/ExtensionBehavior.h" 10 11 #include "common/debug.h" 12 13 #include <string.h> 14 15 #define LIST_EXTENSIONS(OP) \ 16 OP(ARB_texture_rectangle) \ 17 OP(ANGLE_texture_multisample) \ 18 OP(ARM_shader_framebuffer_fetch) \ 19 OP(EXT_blend_func_extended) \ 20 OP(EXT_draw_buffers) \ 21 OP(EXT_frag_depth) \ 22 OP(EXT_geometry_shader) \ 23 OP(EXT_gpu_shader5) \ 24 OP(EXT_shader_framebuffer_fetch) \ 25 OP(EXT_shader_texture_lod) \ 26 OP(EXT_YUV_target) \ 27 OP(EXT_shader_non_constant_global_initializers) \ 28 OP(NV_shader_noperspective_interpolation) \ 29 OP(NV_EGL_stream_consumer_external) \ 30 OP(NV_shader_framebuffer_fetch) \ 31 OP(OES_EGL_image_external) \ 32 OP(OES_EGL_image_external_essl3) \ 33 OP(OES_standard_derivatives) \ 34 OP(OES_texture_storage_multisample_2d_array) \ 35 OP(OES_texture_3D) \ 36 OP(OVR_multiview) \ 37 OP(OVR_multiview2) \ 38 OP(ANGLE_multi_draw) \ 39 OP(ANGLE_base_vertex_base_instance) \ 40 OP(WEBGL_video_texture) \ 41 OP(APPLE_clip_distance) \ 42 OP(OES_texture_cube_map_array) \ 43 OP(EXT_texture_cube_map_array) 44 45 namespace sh 46 { 47 48 #define RETURN_EXTENSION_NAME_CASE(ext) \ 49 case TExtension::ext: \ 50 return "GL_" #ext; 51 GetExtensionNameString(TExtension extension)52const char *GetExtensionNameString(TExtension extension) 53 { 54 switch (extension) 55 { 56 LIST_EXTENSIONS(RETURN_EXTENSION_NAME_CASE) 57 default: 58 UNREACHABLE(); 59 return ""; 60 } 61 } 62 63 #define RETURN_EXTENSION_IF_NAME_MATCHES(ext) \ 64 if (strcmp(extWithoutGLPrefix, #ext) == 0) \ 65 { \ 66 return TExtension::ext; \ 67 } 68 GetExtensionByName(const char * extension)69TExtension GetExtensionByName(const char *extension) 70 { 71 // If first characters of the extension don't equal "GL_", early out. 72 if (strncmp(extension, "GL_", 3) != 0) 73 { 74 return TExtension::UNDEFINED; 75 } 76 const char *extWithoutGLPrefix = extension + 3; 77 78 LIST_EXTENSIONS(RETURN_EXTENSION_IF_NAME_MATCHES) 79 80 return TExtension::UNDEFINED; 81 } 82 GetBehaviorString(TBehavior b)83const char *GetBehaviorString(TBehavior b) 84 { 85 switch (b) 86 { 87 case EBhRequire: 88 return "require"; 89 case EBhEnable: 90 return "enable"; 91 case EBhWarn: 92 return "warn"; 93 case EBhDisable: 94 return "disable"; 95 default: 96 return nullptr; 97 } 98 } 99 IsExtensionEnabled(const TExtensionBehavior & extBehavior,TExtension extension)100bool IsExtensionEnabled(const TExtensionBehavior &extBehavior, TExtension extension) 101 { 102 ASSERT(extension != TExtension::UNDEFINED); 103 auto iter = extBehavior.find(extension); 104 return iter != extBehavior.end() && 105 (iter->second == EBhEnable || iter->second == EBhRequire || iter->second == EBhWarn); 106 } 107 108 } // namespace sh 109