kc3-lang/angle/src/compiler/translator/ExtensionBehavior.cpp

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• Hash : 7dda50fc
  Author :
  Date : 2022-01-13T12:09:20
  

  Add frontend for ANDROID_extension_pack_es31a
  
  - Add entry to registry_xml file
  - Add handling in the DirectiveHandler
  
  Bug: angleproject:3608
  Change-Id: I1cc32a4a97fd9974f65786a9a972b4b541abf658
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3388405
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Commit-Queue: Brandon Schade <b.schade@samsung.com>
  

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• src/compiler/translator/ExtensionBehavior.cpp

• //
  // 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(ANDROID_extension_pack_es31a)                   \
      OP(ANGLE_base_vertex_base_instance_shader_builtin) \
      OP(ANGLE_multi_draw)                               \
      OP(ANGLE_texture_multisample)                      \
      OP(APPLE_clip_distance)                            \
      OP(ARB_texture_rectangle)                          \
      OP(ARM_shader_framebuffer_fetch)                   \
      OP(EXT_blend_func_extended)                        \
      OP(EXT_clip_cull_distance)                         \
      OP(EXT_draw_buffers)                               \
      OP(EXT_frag_depth)                                 \
      OP(EXT_geometry_shader)                            \
      OP(OES_geometry_shader)                            \
      OP(OES_shader_io_blocks)                           \
      OP(EXT_shader_io_blocks)                           \
      OP(EXT_gpu_shader5)                                \
      OP(EXT_primitive_bounding_box)                     \
      OP(EXT_shader_framebuffer_fetch)                   \
      OP(EXT_shader_framebuffer_fetch_non_coherent)      \
      OP(EXT_shader_non_constant_global_initializers)    \
      OP(EXT_shader_texture_lod)                         \
      OP(EXT_shadow_samplers)                            \
      OP(EXT_tessellation_shader)                        \
      OP(EXT_texture_buffer)                             \
      OP(EXT_texture_cube_map_array)                     \
      OP(EXT_YUV_target)                                 \
      OP(NV_EGL_stream_consumer_external)                \
      OP(NV_shader_framebuffer_fetch)                    \
      OP(NV_shader_noperspective_interpolation)          \
      OP(OES_EGL_image_external)                         \
      OP(OES_EGL_image_external_essl3)                   \
      OP(OES_sample_variables)                           \
      OP(OES_shader_multisample_interpolation)           \
      OP(OES_shader_image_atomic)                        \
      OP(OES_standard_derivatives)                       \
      OP(OES_texture_3D)                                 \
      OP(OES_texture_buffer)                             \
      OP(OES_texture_cube_map_array)                     \
      OP(OES_texture_storage_multisample_2d_array)       \
      OP(OVR_multiview)                                  \
      OP(OVR_multiview2)                                 \
      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
  

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