f60d94e923
* Use clearer pref names. * Default (and only support) IPDL dispatching. * Make DispatchCommands async-only. * Sync ipdl command per sync webgl entrypoint. * Eat the boilerplate cost, since there's not too many. * Run SerializedSize off same path as Serialize. * All shmem uploads go through normal DispatchCommands. * Defer pruning of dead code for now so we can iterate quickly. * Use Read/Write(begin,end) instead of (begin,size). * This would have prevented a bug where we read/wrote N*sizeof(T)*sizeof(T). Differential Revision: https://phabricator.services.mozilla.com/D81495
79 lines
2.1 KiB
C++
79 lines
2.1 KiB
C++
/* -*- Mode: C++; tab-width: 20; 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 "WebGLChild.h"
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#include "ClientWebGLContext.h"
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#include "WebGLMethodDispatcher.h"
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namespace mozilla {
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namespace dom {
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WebGLChild::WebGLChild(ClientWebGLContext& context)
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: PcqActor(this), mContext(context) {}
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WebGLChild::~WebGLChild() { (void)Send__delete__(this); }
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// -
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Maybe<Range<uint8_t>> WebGLChild::AllocPendingCmdBytes(const size_t size) {
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if (!mPendingCmds) {
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mPendingCmds.reset(new webgl::ShmemCmdBuffer);
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size_t capacity = 1000 * 1000;
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if (capacity < size) {
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capacity = size;
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}
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if (!PWebGLChild::AllocShmem(
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capacity, mozilla::ipc::SharedMemory::SharedMemoryType::TYPE_BASIC,
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&(mPendingCmds->mShmem))) {
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return {};
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}
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}
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auto remaining = mPendingCmds->Remaining();
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if (size > remaining.length()) {
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FlushPendingCmds();
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return AllocPendingCmdBytes(size);
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}
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mPendingCmds->mPos += size;
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return Some(Range<uint8_t>{remaining.begin(), remaining.begin() + size});
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}
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void WebGLChild::FlushPendingCmds() {
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if (!mPendingCmds) return;
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const auto cmdBytes = mPendingCmds->mPos;
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SendDispatchCommands(std::move(mPendingCmds->mShmem), cmdBytes);
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mPendingCmds = nullptr;
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mFlushedCmdInfo.flushes += 1;
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mFlushedCmdInfo.flushedCmdBytes += cmdBytes;
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}
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// -
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mozilla::ipc::IPCResult WebGLChild::RecvJsWarning(
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const std::string& text) const {
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mContext.JsWarning(text);
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return IPC_OK();
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}
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mozilla::ipc::IPCResult WebGLChild::RecvOnContextLoss(
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const webgl::ContextLossReason reason) const {
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mContext.OnContextLoss(reason);
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return IPC_OK();
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}
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/* static */
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IpdlQueueProtocol WebGLChild::GetIpdlQueueProtocol(size_t aCmd, ...) {
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bool isSync =
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WebGLMethodDispatcher<>::SyncType(aCmd) == CommandSyncType::SYNC;
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return isSync ? IpdlQueueProtocol::kSync : IpdlQueueProtocol::kBufferedAsync;
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}
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} // namespace dom
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} // namespace mozilla
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