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authorswurl <swurl@swurl.xyz>2025-05-31 02:33:02 -0400
committerswurl <swurl@swurl.xyz>2025-05-31 02:33:02 -0400
commit6c655321e6b04b8648802e296bb5ca11d290ae68 (patch)
tree5c906511e4a2910ce8b806bb9d763b524c28619e /externals/oboe/apps/OboeTester/app/src/main/cpp/OboeStreamCallbackProxy.cpp
parentc0cceff365f754f8859f4c9a0362ebdba7ea388b (diff)
Move dead submodules in-tree
Signed-off-by: swurl <swurl@swurl.xyz>
Diffstat (limited to 'externals/oboe/apps/OboeTester/app/src/main/cpp/OboeStreamCallbackProxy.cpp')
-rw-r--r--externals/oboe/apps/OboeTester/app/src/main/cpp/OboeStreamCallbackProxy.cpp117
1 files changed, 117 insertions, 0 deletions
diff --git a/externals/oboe/apps/OboeTester/app/src/main/cpp/OboeStreamCallbackProxy.cpp b/externals/oboe/apps/OboeTester/app/src/main/cpp/OboeStreamCallbackProxy.cpp
new file mode 100644
index 0000000000..4f95e9da0d
--- /dev/null
+++ b/externals/oboe/apps/OboeTester/app/src/main/cpp/OboeStreamCallbackProxy.cpp
@@ -0,0 +1,117 @@
+/*
+ * Copyright 2017 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 "common/OboeDebug.h"
+#include "OboeStreamCallbackProxy.h"
+
+bool OboeStreamCallbackProxy::mCallbackReturnStop = false;
+
+oboe::DataCallbackResult OboeStreamCallbackProxy::onAudioReady(
+ oboe::AudioStream *audioStream,
+ void *audioData,
+ int numFrames) {
+ oboe::DataCallbackResult callbackResult = oboe::DataCallbackResult::Stop;
+ int64_t startTimeNanos = getNanoseconds();
+ int32_t numWorkloadVoices = mNumWorkloadVoices;
+
+ // Record which CPU this is running on.
+ orCurrentCpuMask(sched_getcpu());
+
+ // Tell ADPF in advance what our workload will be.
+ if (mWorkloadReportingEnabled) {
+ audioStream->reportWorkload(numWorkloadVoices);
+ }
+
+ // Change affinity if app requested a change.
+ uint32_t mask = mCpuAffinityMask;
+ if (mask != mPreviousMask) {
+ int err = applyCpuAffinityMask(mask);
+ if (err != 0) {
+ }
+ mPreviousMask = mask;
+ }
+
+ mCallbackCount++;
+ mFramesPerCallback = numFrames;
+
+ if (mCallbackReturnStop) {
+ return oboe::DataCallbackResult::Stop;
+ }
+
+ if (mCallback != nullptr) {
+ callbackResult = mCallback->onAudioReady(audioStream, audioData, numFrames);
+ }
+
+ mSynthWorkload.onCallback(numWorkloadVoices);
+ if (numWorkloadVoices > 0) {
+ // Render into the buffer or discard the synth voices.
+ float *buffer = (audioStream->getChannelCount() == 2 && mHearWorkload)
+ ? static_cast<float *>(audioData) : nullptr;
+ mSynthWorkload.renderStereo(buffer, numFrames);
+ }
+
+ // Measure CPU load.
+ int64_t currentTimeNanos = getNanoseconds();
+ // Sometimes we get a short callback when doing sample rate conversion.
+ // Just ignore those to avoid noise.
+ if (numFrames > (getFramesPerCallback() / 2)) {
+ int64_t calculationTime = currentTimeNanos - startTimeNanos;
+ float currentCpuLoad = calculationTime * 0.000000001f * audioStream->getSampleRate() / numFrames;
+ mCpuLoad = (mCpuLoad * 0.95f) + (currentCpuLoad * 0.05f); // simple low pass filter
+ mMaxCpuLoad = std::max(currentCpuLoad, mMaxCpuLoad.load());
+ }
+
+ if (mPreviousCallbackTimeNs != 0) {
+ mStatistics.add((currentTimeNanos - mPreviousCallbackTimeNs) * kNsToMsScaler);
+ }
+ mPreviousCallbackTimeNs = currentTimeNanos;
+
+ return callbackResult;
+}
+
+int OboeStreamCallbackProxy::applyCpuAffinityMask(uint32_t mask) {
+ int err = 0;
+ // Capture original CPU set so we can restore it.
+ if (!mIsOriginalCpuSetValid) {
+ err = sched_getaffinity((pid_t) 0,
+ sizeof(mOriginalCpuSet),
+ &mOriginalCpuSet);
+ if (err) {
+ LOGE("%s(0x%02X) - sched_getaffinity(), errno = %d\n", __func__, mask, errno);
+ return -errno;
+ }
+ mIsOriginalCpuSetValid = true;
+ }
+ if (mask) {
+ cpu_set_t cpu_set;
+ CPU_ZERO(&cpu_set);
+ int cpuCount = sysconf(_SC_NPROCESSORS_CONF);
+ for (int cpuIndex = 0; cpuIndex < cpuCount; cpuIndex++) {
+ if (mask & (1 << cpuIndex)) {
+ CPU_SET(cpuIndex, &cpu_set);
+ }
+ }
+ err = sched_setaffinity((pid_t) 0, sizeof(cpu_set_t), &cpu_set);
+ } else {
+ // Restore original mask.
+ err = sched_setaffinity((pid_t) 0, sizeof(mOriginalCpuSet), &mOriginalCpuSet);
+ }
+ if (err) {
+ LOGE("%s(0x%02X) - sched_setaffinity(), errno = %d\n", __func__, mask, errno);
+ return -errno;
+ }
+ return 0;
+}