// Copyright 2021 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

////////////////////////////////////////////////////////////////////////////////
// WGSL builtin definition file                                               //
//                                                                            //
// This file is used to generate parts of the Tint BuiltinTable, various      //
// enum definition files, as well as test .wgsl files.                        //
//                                                                            //
// After modifying this file, run:                                            //
//    tools/run gen                                                           //
// from the Dawn source directory.                                            //
////////////////////////////////////////////////////////////////////////////////

////////////////////////////////////////////////////////////////////////////////
// Enumerators                                                                //
////////////////////////////////////////////////////////////////////////////////

// https://gpuweb.github.io/gpuweb/wgsl/#filterable-triggering-rules
enum core_diagnostic_rule {
  // Rules defined in the spec.
  derivative_uniformity
}

// chromium-specific diagnostics
enum chromium_diagnostic_rule {
  // Chromium specific rules not defined in the spec.
  unreachable_code
}

// https://gpuweb.github.io/gpuweb/wgsl/#syntax-severity_control_name
enum diagnostic_severity {
  error
  warning
  info
  off
}

// https://gpuweb.github.io/gpuweb/wgsl/#extension
enum extension {
  // WGSL Extension "f16"
  f16
  // An extension for the experimental feature "chromium_experimental_dp4a".
  // See crbug.com/tint/1497 for more details
  chromium_experimental_dp4a
  // A Chromium-specific extension for disabling uniformity analysis.
  chromium_disable_uniformity_analysis
  // A Chromium-specific extension for push constants
  chromium_experimental_push_constant
  // A Chromium-specific extension that enables passing of uniform, storage and workgroup
  // address-spaced pointers as parameters, as well as pointers into sub-objects.
  chromium_experimental_full_ptr_parameters
  // A Chromium-specific extension that adds support for read-write storage textures.
  chromium_experimental_read_write_storage_texture
  // A Chromium-specific extension that adds basic subgroup functionality.
  chromium_experimental_subgroups
  // A Chromium-specific extension that relaxes memory layout requirements for uniform storage.
  chromium_internal_relaxed_uniform_layout
  // A Chromium-specific extension that enables dual source blending.
  chromium_internal_dual_source_blending
  // A Chromium-specific extension that enables pixel local storage.
  chromium_experimental_pixel_local
}