forked from mirrors/gecko-dev
3021defc28
This change adds support for CanvasContext presenting WebGPU via CPU readback. The presentation is handled mostly on GPU process side by managing a list of staging buffers and copying the contents into a WR external image (backed by an external buffer). Differential Revision: https://phabricator.services.mozilla.com/D68032 --HG-- extra : moz-landing-system : lando
45 lines
1 KiB
C++
45 lines
1 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/WebGPUBinding.h"
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#include "CommandBuffer.h"
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#include "Device.h"
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namespace mozilla {
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namespace webgpu {
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GPU_IMPL_CYCLE_COLLECTION(CommandBuffer, mParent)
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GPU_IMPL_JS_WRAP(CommandBuffer)
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CommandBuffer::CommandBuffer(Device* const aParent, RawId aId)
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: ChildOf(aParent), mId(aId) {
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if (!aId) {
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mValid = false;
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}
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}
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CommandBuffer::~CommandBuffer() { Cleanup(); }
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void CommandBuffer::Cleanup() {
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if (mValid && mParent) {
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mValid = false;
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auto bridge = mParent->GetBridge();
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if (bridge && bridge->IsOpen()) {
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bridge->SendCommandBufferDestroy(mId);
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}
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}
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}
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Maybe<RawId> CommandBuffer::Commit() {
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if (!mValid) {
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return Nothing();
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}
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mValid = false;
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return Some(mId);
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}
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} // namespace webgpu
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} // namespace mozilla
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