Move dead submodules in-tree

Signed-off-by: swurl <swurl@swurl.xyz>

1 files changed, 92 insertions, 0 deletions

diff --git a/externals/oboe/samples/minimaloboe/src/main/cpp/SimpleNoiseMaker.cpp b/externals/oboe/samples/minimaloboe/src/main/cpp/SimpleNoiseMaker.cpp
new file mode 100644
index 0000000000..40583917b1
--- /dev/null
+++ b/externals/oboe/samples/minimaloboe/src/main/cpp/SimpleNoiseMaker.cpp
@@ -0,0 +1,92 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdlib.h>
+
+static const char *TAG = "SimpleNoiseMaker";
+
+#include <android/log.h>
+
+#include <SimpleNoiseMaker.h>
+
+using namespace oboe;
+
+oboe::Result SimpleNoiseMaker::open() {
+    // Use shared_ptr to prevent use of a deleted callback.
+    mDataCallback = std::make_shared<MyDataCallback>();
+    mErrorCallback = std::make_shared<MyErrorCallback>(this);
+
+    AudioStreamBuilder builder;
+    oboe::Result result = builder.setSharingMode(oboe::SharingMode::Exclusive)
+            ->setPerformanceMode(oboe::PerformanceMode::LowLatency)
+            ->setFormat(oboe::AudioFormat::Float)
+            ->setChannelCount(kChannelCount)
+            ->setDataCallback(mDataCallback)
+            ->setErrorCallback(mErrorCallback)
+                    // Open using a shared_ptr.
+            ->openStream(mStream);
+    return result;
+}
+
+oboe::Result SimpleNoiseMaker::start() {
+    return mStream->requestStart();
+}
+
+oboe::Result SimpleNoiseMaker::stop() {
+    return mStream->requestStop();
+}
+
+oboe::Result SimpleNoiseMaker::close() {
+    return mStream->close();
+}
+
+/**
+ * This callback method will be called from a high priority audio thread.
+ * It should only do math and not do any blocking operations like
+ * reading or writing files, memory allocation, or networking.
+ * @param audioStream
+ * @param audioData pointer to an array of samples to be filled
+ * @param numFrames number of frames needed
+ * @return
+ */
+DataCallbackResult SimpleNoiseMaker::MyDataCallback::onAudioReady(
+        AudioStream *audioStream,
+        void *audioData,
+        int32_t numFrames) {
+    // We requested float when we built the stream.
+    float *output = (float *) audioData;
+    // Fill buffer with random numbers to create "white noise".
+    int numSamples = numFrames * kChannelCount;
+    for (int i = 0; i < numSamples; i++) {
+        // drand48() returns a random number between 0.0 and 1.0.
+        // Center and scale it to a reasonable value.
+        *output++ = (float) ((drand48() - 0.5) * 0.6);
+    }
+    return oboe::DataCallbackResult::Continue;
+}
+
+void SimpleNoiseMaker::MyErrorCallback::onErrorAfterClose(oboe::AudioStream *oboeStream,
+                                                          oboe::Result error) {
+    __android_log_print(ANDROID_LOG_INFO, TAG,
+                        "%s() - error = %s",
+                        __func__,
+                        oboe::convertToText(error)
+    );
+    // Try to open and start a new stream after a disconnect.
+    if (mParent->open() == Result::OK) {
+        mParent->start();
+    }
+}