import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/media/webaudio/WebAudioUtils.cpp

@@ -0,0 +1,151 @@
+/* -*- 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/. */
+
+#include "WebAudioUtils.h"
+#include "AudioNodeStream.h"
+#include "blink/HRTFDatabaseLoader.h"
+
+#include "nsContentUtils.h"
+#include "nsIConsoleService.h"
+#include "nsIScriptError.h"
+
+namespace mozilla {
+
+LazyLogModule gWebAudioAPILog("WebAudioAPI");
+
+namespace dom {
+
+void WebAudioUtils::ConvertAudioTimelineEventToTicks(AudioTimelineEvent& aEvent,
+                                                     AudioNodeStream* aDest)
+{
+  aEvent.SetTimeInTicks(
+      aDest->SecondsToNearestStreamTime(aEvent.Time<double>()));
+  aEvent.mTimeConstant *= aDest->SampleRate();
+  aEvent.mDuration *= aDest->SampleRate();
+}
+
+void
+WebAudioUtils::Shutdown()
+{
+  WebCore::HRTFDatabaseLoader::shutdown();
+}
+
+int
+WebAudioUtils::SpeexResamplerProcess(SpeexResamplerState* aResampler,
+                                     uint32_t aChannel,
+                                     const float* aIn, uint32_t* aInLen,
+                                     float* aOut, uint32_t* aOutLen)
+{
+#ifdef MOZ_SAMPLE_TYPE_S16
+  AutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp1;
+  AutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp2;
+  tmp1.SetLength(*aInLen);
+  tmp2.SetLength(*aOutLen);
+  ConvertAudioSamples(aIn, tmp1.Elements(), *aInLen);
+  int result = speex_resampler_process_int(aResampler, aChannel, tmp1.Elements(), aInLen, tmp2.Elements(), aOutLen);
+  ConvertAudioSamples(tmp2.Elements(), aOut, *aOutLen);
+  return result;
+#else
+  return speex_resampler_process_float(aResampler, aChannel, aIn, aInLen, aOut, aOutLen);
+#endif
+}
+
+int
+WebAudioUtils::SpeexResamplerProcess(SpeexResamplerState* aResampler,
+                                     uint32_t aChannel,
+                                     const int16_t* aIn, uint32_t* aInLen,
+                                     float* aOut, uint32_t* aOutLen)
+{
+  AutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp;
+#ifdef MOZ_SAMPLE_TYPE_S16
+  tmp.SetLength(*aOutLen);
+  int result = speex_resampler_process_int(aResampler, aChannel, aIn, aInLen, tmp.Elements(), aOutLen);
+  ConvertAudioSamples(tmp.Elements(), aOut, *aOutLen);
+  return result;
+#else
+  tmp.SetLength(*aInLen);
+  ConvertAudioSamples(aIn, tmp.Elements(), *aInLen);
+  int result = speex_resampler_process_float(aResampler, aChannel, tmp.Elements(), aInLen, aOut, aOutLen);
+  return result;
+#endif
+}
+
+int
+WebAudioUtils::SpeexResamplerProcess(SpeexResamplerState* aResampler,
+                                     uint32_t aChannel,
+                                     const int16_t* aIn, uint32_t* aInLen,
+                                     int16_t* aOut, uint32_t* aOutLen)
+{
+#ifdef MOZ_SAMPLE_TYPE_S16
+  return speex_resampler_process_int(aResampler, aChannel, aIn, aInLen, aOut, aOutLen);
+#else
+  AutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp1;
+  AutoTArray<AudioDataValue, WEBAUDIO_BLOCK_SIZE*4> tmp2;
+  tmp1.SetLength(*aInLen);
+  tmp2.SetLength(*aOutLen);
+  ConvertAudioSamples(aIn, tmp1.Elements(), *aInLen);
+  int result = speex_resampler_process_float(aResampler, aChannel, tmp1.Elements(), aInLen, tmp2.Elements(), aOutLen);
+  ConvertAudioSamples(tmp2.Elements(), aOut, *aOutLen);
+  return result;
+#endif
+}
+
+void
+WebAudioUtils::LogToDeveloperConsole(uint64_t aWindowID, const char* aKey)
+{
+  // This implementation is derived from dom/media/VideoUtils.cpp, but we
+  // use a windowID so that the message is delivered to the developer console.
+  // It is similar to ContentUtils::ReportToConsole, but also works off main
+  // thread.
+  if (!NS_IsMainThread()) {
+    nsCOMPtr<nsIRunnable> task =
+      NS_NewRunnableFunction([aWindowID, aKey]() { LogToDeveloperConsole(aWindowID, aKey); });
+    NS_DispatchToMainThread(task.forget(), NS_DISPATCH_NORMAL);
+    return;
+  }
+
+  nsCOMPtr<nsIConsoleService> console(
+    do_GetService("@mozilla.org/consoleservice;1"));
+  if (!console) {
+    NS_WARNING("Failed to log message to console.");
+    return;
+  }
+
+  nsAutoCString spec;
+  uint32_t aLineNumber, aColumnNumber;
+  JSContext *cx = nsContentUtils::GetCurrentJSContext();
+  if (cx) {
+    nsJSUtils::GetCallingLocation(cx, spec, &aLineNumber, &aColumnNumber);
+  }
+
+  nsresult rv;
+  nsCOMPtr<nsIScriptError> errorObject =
+      do_CreateInstance(NS_SCRIPTERROR_CONTRACTID, &rv);
+  if (!errorObject) {
+    NS_WARNING("Failed to log message to console.");
+    return;
+  }
+
+  nsXPIDLString result;
+  rv = nsContentUtils::GetLocalizedString(nsContentUtils::eDOM_PROPERTIES,
+                                          aKey, result);
+
+  if (NS_FAILED(rv)) {
+    NS_WARNING("Failed to log message to console.");
+    return;
+  }
+
+  errorObject->InitWithWindowID(result,
+                                NS_ConvertUTF8toUTF16(spec),
+                                EmptyString(),
+                                aLineNumber, aColumnNumber,
+                                nsIScriptError::warningFlag, "Web Audio",
+                                aWindowID);
+  console->LogMessage(errorObject);
+}
+
+} // namespace dom
+} // namespace mozilla