Move dead submodules in-tree

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

1 files changed, 140 insertions, 0 deletions

diff --git a/externals/oboe/apps/OboeTester/app/src/main/cpp/util/WaveFileWriter.cpp b/externals/oboe/apps/OboeTester/app/src/main/cpp/util/WaveFileWriter.cpp
new file mode 100644
index 0000000000..9e8d37d352
--- /dev/null
+++ b/externals/oboe/apps/OboeTester/app/src/main/cpp/util/WaveFileWriter.cpp
@@ -0,0 +1,140 @@
+/*
+ * Copyright 2019 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 "WaveFileWriter.h"
+
+void WaveFileWriter::WaveFileWriter::write(float value) {
+    if (!mHeaderWritten) {
+        writeHeader();
+    }
+    if (mBitsPerSample == 24) {
+        writePCM24(value);
+    } else {
+        writePCM16(value);
+    }
+}
+
+void WaveFileWriter::write(float *buffer, int32_t startSample, int32_t numSamples) {
+    for (int32_t i = 0; i < numSamples; i++) {
+        write(buffer[startSample + i]);
+    }
+}
+
+void WaveFileWriter::writeIntLittle(int32_t n) {
+    writeByte(n);
+    writeByte(n >> 8);
+    writeByte(n >> 16);
+    writeByte(n >> 24);
+}
+
+void WaveFileWriter::writeShortLittle(int16_t n) {
+    writeByte(n);
+    writeByte(n >> 8);
+}
+
+void WaveFileWriter::writeFormatChunk() {
+    int32_t bytesPerSample = (mBitsPerSample + 7) / 8;
+
+    writeByte('f');
+    writeByte('m');
+    writeByte('t');
+    writeByte(' ');
+    writeIntLittle(16); // chunk size
+    writeShortLittle(WAVE_FORMAT_PCM);
+    writeShortLittle((int16_t) mSamplesPerFrame);
+    writeIntLittle(mFrameRate);
+    // bytes/second
+    writeIntLittle(mFrameRate * mSamplesPerFrame * bytesPerSample);
+    // block align
+    writeShortLittle((int16_t) (mSamplesPerFrame * bytesPerSample));
+    writeShortLittle((int16_t) mBitsPerSample);
+}
+
+int32_t WaveFileWriter::getDataSizeInBytes() {
+    if (mFrameCount <= 0) return INT32_MAX;
+    int64_t dataSize = ((int64_t)mFrameCount) * mSamplesPerFrame * mBitsPerSample / 8;
+    return (int32_t)std::min(dataSize, (int64_t)INT32_MAX);
+}
+
+void WaveFileWriter::writeDataChunkHeader() {
+    writeByte('d');
+    writeByte('a');
+    writeByte('t');
+    writeByte('a');
+    writeIntLittle(getDataSizeInBytes());
+}
+
+void WaveFileWriter::writeHeader() {
+    writeRiffHeader();
+    writeFormatChunk();
+    writeDataChunkHeader();
+    mHeaderWritten = true;
+}
+
+// Write lower 8 bits. Upper bits ignored.
+void WaveFileWriter::writeByte(uint8_t b) {
+    mOutputStream->write(b);
+    mBytesWritten += 1;
+}
+
+void WaveFileWriter::writePCM24(float value) {
+    // Offset before casting so that we can avoid using floor().
+    // Also round by adding 0.5 so that very small signals go to zero.
+    float temp = (PCM24_MAX * value) + 0.5 - PCM24_MIN;
+    int32_t sample = ((int) temp) + PCM24_MIN;
+    // clip to 24-bit range
+    if (sample > PCM24_MAX) {
+        sample = PCM24_MAX;
+    } else if (sample < PCM24_MIN) {
+        sample = PCM24_MIN;
+    }
+    // encode as little-endian
+    writeByte(sample); // little end
+    writeByte(sample >> 8); // middle
+    writeByte(sample >> 16); // big end
+}
+
+void WaveFileWriter::writePCM16(float value) {
+    // Offset before casting so that we can avoid using floor().
+    // Also round by adding 0.5 so that very small signals go to zero.
+    float temp = (INT16_MAX * value) + 0.5 - INT16_MIN;
+    int32_t sample = ((int) temp) + INT16_MIN;
+    if (sample > INT16_MAX) {
+        sample = INT16_MAX;
+    } else if (sample < INT16_MIN) {
+        sample = INT16_MIN;
+    }
+    writeByte(sample); // little end
+    writeByte(sample >> 8); // big end
+}
+
+void WaveFileWriter::writeRiffHeader() {
+    writeByte('R');
+    writeByte('I');
+    writeByte('F');
+    writeByte('F');
+    // Maximum size is not strictly correct but is commonly used
+    // when we do not know the final size.
+    const int kExtraHeaderBytes = 36;
+    int32_t dataSize = getDataSizeInBytes();
+    writeIntLittle((dataSize > (INT32_MAX - kExtraHeaderBytes))
+            ? INT32_MAX
+            : dataSize + kExtraHeaderBytes);
+    writeByte('W');
+    writeByte('A');
+    writeByte('V');
+    writeByte('E');
+}