// Copyright 2023 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
//    list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
//    this list of conditions and the following disclaimer in the documentation
//    and/or other materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its
//    contributors may be used to endorse or promote products derived from
//    this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// An IDL file that adds support for Dawn extensions that are not part of the
// upstream webgpu.idl.

enum GPUFeatureName {
    "multi-draw-indirect",
    "chromium-experimental-subgroup-matrix",
};

enum GPUSubgroupMatrixComponentType {
  "f32",
  "f16",
  "u32",
  "i32",
  "u8",
  "i8",
};

interface GPUSubgroupMatrixConfig {
  readonly attribute GPUSubgroupMatrixComponentType componentType;
  readonly attribute GPUSubgroupMatrixComponentType resultComponentType;
  readonly attribute unsigned long M;
  readonly attribute unsigned long N;
  readonly attribute unsigned long K;
};

interface GPUAdapterInfo {
    [SameObject] readonly attribute FrozenArray<GPUSubgroupMatrixConfig> subgroupMatrixConfigs;
};

interface GPUCommandEncoder {
    undefined writeTimestamp(GPUQuerySet querySet, GPUSize32 queryIndex);
};

// Not in webgpu.idl yet.
interface GPURenderPassEncoder {
    undefined multiDrawIndirect(GPUBuffer indirectBuffer, GPUSize64 indirectOffset, GPUSize32 maxDrawCount,
        GPUBuffer? drawCountBuffer, optional GPUSize64 drawCountBufferOffset = 0);
    undefined multiDrawIndexedIndirect(GPUBuffer indirectBuffer, GPUSize64 indirectOffset,
                                GPUSize32 maxDrawCount, GPUBuffer? drawCountBuffer = {},
                                optional GPUSize64 drawCountBufferOffset = 0);
};

dictionary GPUTextureDescriptor {
    GPUTextureViewDimension? textureBindingViewDimension;
};

enum WGSLLanguageFeatureName {
    "readonly_and_readwrite_storage_textures",
    "packed_4x8_integer_dot_product",
    "unrestricted_pointer_parameters",
    "pointer_composite_access",
    "sized_binding_array",
    "texel_buffers",
    "texture_sample_level_1d",
};

dictionary GPUBindGroupLayoutEntry {
    GPUSize32 bindingArraySize = 1;
};

interface GPUSupportedLimits {
    readonly attribute unsigned long maxStorageBuffersInFragmentStage;
    readonly attribute unsigned long maxStorageTexturesInFragmentStage;
    readonly attribute unsigned long maxStorageBuffersInVertexStage;
    readonly attribute unsigned long maxStorageTexturesInVertexStage;
};