mirror of
https://github.com/hajimehoshi/ebiten.git
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48 lines
1.5 KiB
C++
Vendored
48 lines
1.5 KiB
C++
Vendored
/*
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* Copyright 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <algorithm>
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#include <unistd.h>
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#include "oboe_flowgraph_FlowGraphNode_android.h"
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#include "oboe_common_SourceI16Caller_android.h"
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#if FLOWGRAPH_ANDROID_INTERNAL
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#include <audio_utils/primitives.h>
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#endif
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using namespace oboe;
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using namespace flowgraph;
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int32_t SourceI16Caller::onProcess(int32_t numFrames) {
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int32_t numBytes = mStream->getBytesPerFrame() * numFrames;
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int32_t bytesRead = mBlockReader.read((uint8_t *) mConversionBuffer.get(), numBytes);
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int32_t framesRead = bytesRead / mStream->getBytesPerFrame();
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float *floatData = output.getBuffer();
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const int16_t *shortData = mConversionBuffer.get();
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int32_t numSamples = framesRead * output.getSamplesPerFrame();
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#if FLOWGRAPH_ANDROID_INTERNAL
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memcpy_to_float_from_i16(floatData, shortData, numSamples);
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#else
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for (int i = 0; i < numSamples; i++) {
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*floatData++ = *shortData++ * (1.0f / 32768);
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}
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#endif
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return framesRead;
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}
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