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47 lines
1.7 KiB
C++
47 lines
1.7 KiB
C++
/* 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 file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MIDILog.h"
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#include "mozilla/dom/MIDITypes.h"
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#include "mozilla/dom/MIDIPortBinding.h"
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mozilla::LazyLogModule gWebMIDILog("WebMIDI");
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void LogMIDIMessage(const mozilla::dom::MIDIMessage& aMessage,
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const nsAString& aPortId,
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mozilla::dom::MIDIPortType aDirection) {
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if (MOZ_LOG_TEST(gWebMIDILog, mozilla::LogLevel::Debug)) {
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if (MOZ_LOG_TEST(gWebMIDILog, mozilla::LogLevel::Verbose)) {
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uint32_t byteCount = aMessage.data().Length();
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nsAutoCString logMessage;
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// Log long messages inline with the timestamp and the length, log
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// longer messages a bit like xxd
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logMessage.AppendPrintf(
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"%s %s length=%u", NS_ConvertUTF16toUTF8(aPortId).get(),
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aDirection == mozilla::dom::MIDIPortType::Input ? "->" : "<-",
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byteCount);
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if (byteCount <= 3) {
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logMessage.AppendPrintf(" [");
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// Regular messages
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for (uint32_t i = 0; i < byteCount - 1; i++) {
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logMessage.AppendPrintf("%x ", aMessage.data()[i]);
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}
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logMessage.AppendPrintf("%x]", aMessage.data()[byteCount - 1]);
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} else {
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// Longer messages
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for (uint32_t i = 0; i < byteCount; i++) {
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if (!(i % 8)) {
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logMessage.AppendPrintf("\n%08u:\t", i);
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}
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logMessage.AppendPrintf("%x ", aMessage.data()[i]);
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}
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}
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MOZ_LOG(gWebMIDILog, mozilla::LogLevel::Verbose,
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("%s", logMessage.get()));
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}
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}
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}
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