// 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.
//
// 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"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// An IDL file that adds support for Dawn extensions that are not part of the
// upstream webgpu.idl.

// ============================================================================
// Language features, they are not defined in WebGPU's IDL.
// ============================================================================
enum WGSLLanguageFeatureName {
    "readonly_and_readwrite_storage_textures",
    "packed_4x8_integer_dot_product",
    "unrestricted_pointer_parameters",
    "pointer_composite_access",
    "sized_binding_array",
    "texel_buffers",
    "fragment_depth",
    "immediate_address_space",
    "chromium_print",
    "uniform_buffer_standard_layout",
    "subgroup_id",
    "subgroup_uniformity",
    "texture_and_sampler_let",
    "buffer_view",
    "swizzle_assignment",
    "linear_indexing",
    "texture_formats_tier1",
};

// ============================================================================
// Subgroup matrices
// ============================================================================
enum GPUFeatureName {
    "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;
};

// ============================================================================
// MultiDrawIndirect
// ============================================================================
enum GPUFeatureName {
    "multi-draw-indirect",
};

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);
};

// ============================================================================
// Write timestamp
// ============================================================================
interface GPUCommandEncoder {
    undefined writeTimestamp(GPUQuerySet querySet, GPUSize32 queryIndex);
};

// ============================================================================
// Fixed-size binding arrays
// ============================================================================
dictionary GPUBindGroupLayoutEntry {
    GPUSize32 bindingArraySize = 1;
};

// ============================================================================
// Resource table
// ============================================================================
enum GPUFeatureName {
    "chromium-experimental-sampling-resource-table",
};

dictionary GPUResourceTableDescriptor : GPUObjectDescriptorBase {
    required GPUSize32 size;
};
interface GPUDevice {
    GPUResourceTable createResourceTable(GPUResourceTableDescriptor descriptor);
};

interface GPUResourceTable {
    undefined destroy();

    undefined update(GPUIndex32 slot, GPUBindingResource resource);
    GPUIndex32 insertBinding(GPUBindingResource resource);
    undefined removeBinding(GPUIndex32 slot);

    readonly attribute GPUSize32Out size;
};
GPUResourceTable includes GPUObjectBase;

dictionary GPUPipelineLayoutDescriptor {
    bool usesResourceTable = false;
};

interface GPUComputePassEncoder {
    undefined setResourceTable(GPUResourceTable? table);
};
interface GPURenderBundleEncoder {
    undefined setResourceTable(GPUResourceTable? table);
};
interface GPURenderPassEncoder {
    undefined setResourceTable(GPUResourceTable? table);
};
