dom/webgpu/ComputePipeline.cpp

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #include "ComputePipeline.h"
   7
   8 #include "Device.h"
   9 #include "ipc/WebGPUChild.h"
  10 #include "mozilla/dom/WebGPUBinding.h"
  11
  12 namespace mozilla::webgpu {
  13
  14 GPU_IMPL_CYCLE_COLLECTION(ComputePipeline, mParent)
  15 GPU_IMPL_JS_WRAP(ComputePipeline)
  16
  17 ComputePipeline::ComputePipeline(Device* const aParent, RawId aId,
  18                                  RawId aImplicitPipelineLayoutId,
  19                                  nsTArray<RawId>&& aImplicitBindGroupLayoutIds)
  20     : ChildOf(aParent),
  21       mImplicitPipelineLayoutId(aImplicitPipelineLayoutId),
  22       mImplicitBindGroupLayoutIds(std::move(aImplicitBindGroupLayoutIds)),
  23       mId(aId) {
  24   MOZ_RELEASE_ASSERT(aId);
  25 }
  26
  27 ComputePipeline::~ComputePipeline() { Cleanup(); }
  28
  29 void ComputePipeline::Cleanup() {
  30   if (mValid) {
  31     return;
  32   }
  33   mValid = false;
  34
  35   auto bridge = mParent->GetBridge();
  36   if (bridge->CanSend()) {
  37     bridge->SendComputePipelineDrop(mId);
  38     if (mImplicitPipelineLayoutId) {
  39       bridge->SendImplicitLayoutDrop(mImplicitPipelineLayoutId,
  40                                      mImplicitBindGroupLayoutIds);
  41     }
  42   }
  43
  44   if (mImplicitPipelineLayoutId) {
  45     wgpu_client_free_pipeline_layout_id(bridge->GetClient(),
  46                                         mImplicitPipelineLayoutId);
  47   }
  48
  49   for (const auto& id : mImplicitBindGroupLayoutIds) {
  50     wgpu_client_free_bind_group_layout_id(bridge->GetClient(), id);
  51   }
  52 }
  53
  54 already_AddRefed<BindGroupLayout> ComputePipeline::GetBindGroupLayout(
  55     uint32_t aIndex) const {
  56   auto bridge = mParent->GetBridge();
  57   auto* client = bridge->GetClient();
  58
  59   ipc::ByteBuf bb;
  60   const RawId bglId = ffi::wgpu_client_compute_pipeline_get_bind_group_layout(
  61       client, mId, aIndex, ToFFI(&bb));
  62
  63   bridge->SendDeviceAction(mParent->GetId(), std::move(bb));
  64
  65   RefPtr<BindGroupLayout> object = new BindGroupLayout(mParent, bglId, false);
  66   return object.forget();
  67 }
  68
  69 }  // namespace mozilla::webgpu