1 files changed, 50 insertions, 0 deletions
diff --git a/externals/oboe/apps/OboeTester/app/src/main/cpp/SinkMemoryDirect.cpp b/externals/oboe/apps/OboeTester/app/src/main/cpp/SinkMemoryDirect.cpp
new file mode 100644
index 0000000000..e01583621e
--- /dev/null
+++ b/externals/oboe/apps/OboeTester/app/src/main/cpp/SinkMemoryDirect.cpp
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2025 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 "SinkMemoryDirect.h"
+#include "common/OboeDebug.h"
+
+SinkMemoryDirect::SinkMemoryDirect(int channelCount, int bytesPerFrame) :
+        oboe::flowgraph::FlowGraphSink(channelCount), mBytesPerFrame(bytesPerFrame) {
+}
+
+void SinkMemoryDirect::setupMemoryBuffer(std::unique_ptr<uint8_t[]>& buffer, int length) {
+    mBuffer = std::make_unique<uint8_t[]>(length);
+    memcpy(mBuffer.get(), buffer.get(), length);
+    mBufferLength = length;
+    mCurPosition = 0;
+}
+
+void SinkMemoryDirect::reset() {
+    oboe::flowgraph::FlowGraphNode::reset();
+    mCurPosition = 0;
+}
+
+int32_t SinkMemoryDirect::read(void *data, int32_t numFrames) {
+    auto uint8Data = static_cast<uint8_t*>(data);
+    int bytesLeft = numFrames * mBytesPerFrame;
+    while (bytesLeft > 0) {
+        int bytesToCopy = std::min(bytesLeft, mBufferLength - mCurPosition);
+        memcpy(uint8Data, mBuffer.get() + mCurPosition, bytesToCopy);
+        mCurPosition += bytesToCopy;
+        if (mCurPosition >= mBufferLength) {
+            mCurPosition = 0;
+        }
+        bytesLeft -= bytesToCopy;
+        uint8Data += bytesToCopy;
+    }
+    return numFrames;
+}