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

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• Hash : 15cc0013
  Author :
  Date : 2022-07-14T23:32:05
  

  Add a GL_ANGLE_shader_pixel_local_storage extension
  
  Plumbs through "GL_ANGLE_shader_pixel_local_storage" and
  "GL_ANGLE_shader_pixel_local_storage_coherent" extension strings
  advertised by ANGLE and stubs out an initial spec document. This change
  doesn't add any new procedures or shader constructs, but it does allow
  the PLS tests to start checking for the real extension strings and
  requiring the GL_ANGLE_shader_pixel_local_storage extension.
  
  Bug: angleproject:7279
  Change-Id: I36877fe4117185a2121f803288123cd69a447cf3
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3739590
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Kenneth Russell <kbr@chromium.org>
  Commit-Queue: Chris Dalton <chris@rive.app>
  

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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_shader_pixel_local_storage)               \
      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(OES_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(KHR_blend_equation_advanced)                    \
      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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