From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- dom/midi/midirMIDIPlatformService.h | 64 +++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 dom/midi/midirMIDIPlatformService.h (limited to 'dom/midi/midirMIDIPlatformService.h') diff --git a/dom/midi/midirMIDIPlatformService.h b/dom/midi/midirMIDIPlatformService.h new file mode 100644 index 0000000000..e204b5576a --- /dev/null +++ b/dom/midi/midirMIDIPlatformService.h @@ -0,0 +1,64 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef mozilla_dom_midirMIDIPlatformService_h +#define mozilla_dom_midirMIDIPlatformService_h + +#include "mozilla/StaticMutex.h" +#include "mozilla/dom/MIDIPlatformService.h" +#include "mozilla/dom/MIDITypes.h" +#include "mozilla/dom/midi/midir_impl_ffi_generated.h" + +class nsIThread; +struct MidirWrapper; + +namespace mozilla::dom { + +class MIDIPortInterface; + +/** + * Platform service implementation using the midir crate. + */ +class midirMIDIPlatformService : public MIDIPlatformService { + public: + midirMIDIPlatformService(); + virtual void Init() override; + virtual void Refresh() override; + virtual void Open(MIDIPortParent* aPort) override; + virtual void Stop() override; + virtual void ScheduleSend(const nsAString& aPort) override; + virtual void ScheduleClose(MIDIPortParent* aPort) override; + + void SendMessage(const nsAString& aPort, const MIDIMessage& aMessage); + + private: + virtual ~midirMIDIPlatformService(); + + static void AddPort(const nsString* aId, const nsString* aName, bool aInput); + static void RemovePort(const nsString* aId, const nsString* aName, + bool aInput); + static void CheckAndReceive(const nsString* aId, const uint8_t* aData, + size_t aLength, const GeckoTimeStamp* aTimeStamp, + uint64_t aMicros); + + // Wrapper around the midir Rust implementation. + MidirWrapper* mImplementation; + + // The midir backends can invoke CheckAndReceive on arbitrary background + // threads, and so we dispatch events from there to the owner task queue. + // It's a little ambiguous whether midir can ever invoke CheckAndReceive + // on one of its platform-specific background threads after we've dropped + // the main instance. Just in case, we use a static mutex to avoid a potential + // race with dropping the primary reference to the task queue via + // ClearOnShutdown. + static StaticMutex gOwnerThreadMutex; + static nsCOMPtr gOwnerThread + MOZ_GUARDED_BY(gOwnerThreadMutex); +}; + +} // namespace mozilla::dom + +#endif // mozilla_dom_midirMIDIPlatformService_h -- cgit v1.2.3