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authorcrueter <crueter@eden-emu.dev>2025-08-04 04:50:14 +0200
committercrueter <crueter@eden-emu.dev>2025-08-04 04:50:14 +0200
commit51b170b470ed587f99a7c2a773e4464687f0d07a (patch)
tree4c03c510cfb17a5f5d6233df490d78f06dcfa7f7 /externals/oboe/samples/MegaDrone/src/main/cpp/MegaDroneEngine.cpp
parent04e5e6453875ffa5c79cdb421a29bc19985b1049 (diff)
[cmake] refactor: Use CPM over submodules (#143)
Transfers the majority of submodules and large externals to CPM, using source archives rather than full Git clones. Not only does this save massive amounts of clone and configure time, but dependencies are grabbed on-demand rather than being required by default. Additionally, CPM will (generally) automatically search for system dependencies, though certain dependencies have options to control this. Testing shows gains ranging from 5x to 10x in terms of overall clone/configure time. Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/143 Reviewed-by: CamilleLaVey <camillelavey99@gmail.com>
Diffstat (limited to 'externals/oboe/samples/MegaDrone/src/main/cpp/MegaDroneEngine.cpp')
-rw-r--r--externals/oboe/samples/MegaDrone/src/main/cpp/MegaDroneEngine.cpp126
1 files changed, 0 insertions, 126 deletions
diff --git a/externals/oboe/samples/MegaDrone/src/main/cpp/MegaDroneEngine.cpp b/externals/oboe/samples/MegaDrone/src/main/cpp/MegaDroneEngine.cpp
deleted file mode 100644
index df3309ef12..0000000000
--- a/externals/oboe/samples/MegaDrone/src/main/cpp/MegaDroneEngine.cpp
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * Copyright 2018 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 <memory>
-#include "MegaDroneEngine.h"
-
-/**
- * Main audio engine for the MegaDrone sample. It is responsible for:
- *
- * - Creating the callback object which will be supplied when constructing the audio stream
- * - Setting the CPU core IDs to which the callback thread should bind to
- * - Creating the playback stream, including setting the callback object
- * - Creating `Synth` which will render the audio inside the callback
- * - Starting the playback stream
- * - Restarting the playback stream when `restart()` is called by the callback object
- *
- * @param cpuIds
- */
-MegaDroneEngine::MegaDroneEngine(std::vector<int> cpuIds) {
- createCallback(cpuIds);
-}
-
-MegaDroneEngine::~MegaDroneEngine() {
- if (mStream) {
- LOGE("MegaDroneEngine destructor was called without calling stop()."
- "Please call stop() to ensure stream resources are not leaked.");
- stop();
- }
-}
-
-void MegaDroneEngine::tap(bool isDown) {
- mAudioSource->tap(isDown);
-}
-
-void MegaDroneEngine::restart() {
- stop();
- start();
-}
-// Create the playback stream
-oboe::Result MegaDroneEngine::createPlaybackStream() {
- oboe::AudioStreamBuilder builder;
- return builder.setSharingMode(oboe::SharingMode::Exclusive)
- ->setPerformanceMode(oboe::PerformanceMode::LowLatency)
- ->setFormat(oboe::AudioFormat::Float)
- ->setDataCallback(mDataCallback)
- ->setErrorCallback(mErrorCallback)
- ->openStream(mStream);
-}
-
-// Create the callback and set its thread affinity to the supplied CPU core IDs
-void MegaDroneEngine::createCallback(std::vector<int> cpuIds){
-
- mDataCallback = std::make_shared<DefaultDataCallback>();
-
- // Create the error callback, we supply ourselves as the parent so that we can restart the stream
- // when it's disconnected
- mErrorCallback = std::make_shared<DefaultErrorCallback>(*this);
-
- // Bind the audio callback to specific CPU cores as this can help avoid underruns caused by
- // core migrations
- mDataCallback->setCpuIds(cpuIds);
- mDataCallback->setThreadAffinityEnabled(true);
-}
-
-bool MegaDroneEngine::start() {
- // It is possible for a stream's device to become disconnected during stream open or between
- // stream open and stream start.
- // If the stream fails to start, close the old stream and try again.
- bool didStart = false;
- int tryCount = 0;
- do {
- if (tryCount > 0) {
- usleep(20 * 1000); // Sleep between tries to give the system time to settle.
- }
- didStart = attemptStart();
- } while (!didStart && tryCount++ < 3);
- if (!didStart) {
- LOGE("Failed at starting the stream");
- }
- return didStart;
-}
-
-bool MegaDroneEngine::attemptStart() {
- auto result = createPlaybackStream();
-
- if (result == Result::OK) {
- // Create our synthesizer audio source using the properties of the stream
- mAudioSource = std::make_shared<Synth>(mStream->getSampleRate(), mStream->getChannelCount());
- mDataCallback->reset();
- mDataCallback->setSource(std::dynamic_pointer_cast<IRenderableAudio>(mAudioSource));
- result = mStream->start();
- if (result == Result::OK) {
- return true;
- } else {
- LOGW("Failed attempt at starting the playback stream. Error: %s", convertToText(result));
- return false;
- }
- } else {
- LOGW("Failed attempt at creating the playback stream. Error: %s", convertToText(result));
- return false;
- }
-}
-
-bool MegaDroneEngine::stop() {
- if(mStream && mStream->getState() != oboe::StreamState::Closed) {
- mStream->stop();
- mStream->close();
- }
- mStream.reset();
- return true;
-}
-