third_party/blink/renderer/modules/webgpu/gpu_pipeline_layout.cc

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/modules/webgpu/gpu_pipeline_layout.h"

#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_pipeline_layout_descriptor.h"
#include "third_party/blink/renderer/modules/webgpu/dawn_conversions.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_bind_group_layout.h"
#include "third_party/blink/renderer/modules/webgpu/gpu_device.h"

namespace blink {

// static
GPUPipelineLayout* GPUPipelineLayout::Create(
    GPUDevice* device,
    const GPUPipelineLayoutDescriptor* webgpu_desc) {
  DCHECK(device);
  DCHECK(webgpu_desc);

  size_t bind_group_layout_count = webgpu_desc->bindGroupLayouts().size();

  std::unique_ptr<wgpu::BindGroupLayout[]> bind_group_layouts =
      bind_group_layout_count != 0 ? AsDawnType(webgpu_desc->bindGroupLayouts())
                                   : nullptr;

  wgpu::PipelineLayoutDescriptor dawn_desc = {
      .bindGroupLayoutCount = bind_group_layout_count,
      .bindGroupLayouts = bind_group_layouts.get(),
  };
  std::string label = webgpu_desc->label().Utf8();
  if (!label.empty()) {
    dawn_desc.label = label.c_str();
  }

  GPUPipelineLayout* layout = MakeGarbageCollected<GPUPipelineLayout>(
      device, device->GetHandle().CreatePipelineLayout(&dawn_desc),
      webgpu_desc->label());
  return layout;
}

GPUPipelineLayout::GPUPipelineLayout(GPUDevice* device,
                                     wgpu::PipelineLayout pipeline_layout,
                                     const String& label)
    : DawnObject<wgpu::PipelineLayout>(device,
                                       std::move(pipeline_layout),
                                       label) {}

}  // namespace blink