mirror of
https://github.com/hajimehoshi/ebiten.git
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230 lines
8.1 KiB
C++
Vendored
230 lines
8.1 KiB
C++
Vendored
/*
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* Copyright 2016 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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#ifndef OBOE_AAUDIO_LOADER_H_
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#define OBOE_AAUDIO_LOADER_H_
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#include <unistd.h>
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#include "oboe_oboe_Definitions_android.h"
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// If the NDK is before O then define this in your build
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// so that AAudio.h will not be included.
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#ifdef OBOE_NO_INCLUDE_AAUDIO
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// Define missing types from AAudio.h
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typedef int32_t aaudio_stream_state_t;
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typedef int32_t aaudio_direction_t;
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typedef int32_t aaudio_format_t;
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typedef int32_t aaudio_data_callback_result_t;
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typedef int32_t aaudio_result_t;
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typedef int32_t aaudio_sharing_mode_t;
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typedef int32_t aaudio_performance_mode_t;
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typedef struct AAudioStreamStruct AAudioStream;
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typedef struct AAudioStreamBuilderStruct AAudioStreamBuilder;
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typedef aaudio_data_callback_result_t (*AAudioStream_dataCallback)(
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AAudioStream *stream,
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void *userData,
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void *audioData,
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int32_t numFrames);
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typedef void (*AAudioStream_errorCallback)(
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AAudioStream *stream,
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void *userData,
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aaudio_result_t error);
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// These were defined in P
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typedef int32_t aaudio_usage_t;
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typedef int32_t aaudio_content_type_t;
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typedef int32_t aaudio_input_preset_t;
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typedef int32_t aaudio_session_id_t;
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#else
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#include <aaudio/AAudio.h>
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#include <android/ndk-version.h>
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#endif
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#ifndef __NDK_MAJOR__
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#define __NDK_MAJOR__ 0
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#endif
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namespace oboe {
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/**
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* The AAudio API was not available in early versions of Android.
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* To avoid linker errors, we dynamically link with the functions by name using dlsym().
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* On older versions this linkage will safely fail.
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*/
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class AAudioLoader {
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public:
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// Use signatures for common functions.
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// Key to letter abbreviations.
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// S = Stream
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// B = Builder
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// I = int32_t
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// L = int64_t
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// T = sTate
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// K = clocKid_t
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// P = Pointer to following data type
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// C = Const prefix
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// H = cHar
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typedef int32_t (*signature_I_PPB)(AAudioStreamBuilder **builder);
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typedef const char * (*signature_CPH_I)(int32_t);
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typedef int32_t (*signature_I_PBPPS)(AAudioStreamBuilder *,
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AAudioStream **stream); // AAudioStreamBuilder_open()
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typedef int32_t (*signature_I_PB)(AAudioStreamBuilder *); // AAudioStreamBuilder_delete()
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// AAudioStreamBuilder_setSampleRate()
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typedef void (*signature_V_PBI)(AAudioStreamBuilder *, int32_t);
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typedef int32_t (*signature_I_PS)(AAudioStream *); // AAudioStream_getSampleRate()
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typedef int64_t (*signature_L_PS)(AAudioStream *); // AAudioStream_getFramesRead()
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// AAudioStream_setBufferSizeInFrames()
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typedef int32_t (*signature_I_PSI)(AAudioStream *, int32_t);
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typedef void (*signature_V_PBPDPV)(AAudioStreamBuilder *,
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AAudioStream_dataCallback,
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void *);
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typedef void (*signature_V_PBPEPV)(AAudioStreamBuilder *,
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AAudioStream_errorCallback,
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void *);
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typedef aaudio_format_t (*signature_F_PS)(AAudioStream *stream);
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typedef int32_t (*signature_I_PSPVIL)(AAudioStream *, void *, int32_t, int64_t);
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typedef int32_t (*signature_I_PSCPVIL)(AAudioStream *, const void *, int32_t, int64_t);
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typedef int32_t (*signature_I_PSTPTL)(AAudioStream *,
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aaudio_stream_state_t,
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aaudio_stream_state_t *,
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int64_t);
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typedef int32_t (*signature_I_PSKPLPL)(AAudioStream *, clockid_t, int64_t *, int64_t *);
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typedef bool (*signature_B_PS)(AAudioStream *);
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static AAudioLoader* getInstance(); // singleton
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/**
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* Open the AAudio shared library and load the function pointers.
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* This can be called multiple times.
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* It should only be called from one thread.
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*
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* The destructor will clean up after the open.
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*
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* @return 0 if successful or negative error.
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*/
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int open();
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// Function pointers into the AAudio shared library.
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signature_I_PPB createStreamBuilder = nullptr;
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signature_I_PBPPS builder_openStream = nullptr;
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signature_V_PBI builder_setBufferCapacityInFrames = nullptr;
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signature_V_PBI builder_setChannelCount = nullptr;
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signature_V_PBI builder_setDeviceId = nullptr;
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signature_V_PBI builder_setDirection = nullptr;
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signature_V_PBI builder_setFormat = nullptr;
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signature_V_PBI builder_setFramesPerDataCallback = nullptr;
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signature_V_PBI builder_setPerformanceMode = nullptr;
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signature_V_PBI builder_setSampleRate = nullptr;
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signature_V_PBI builder_setSharingMode = nullptr;
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signature_V_PBI builder_setUsage = nullptr;
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signature_V_PBI builder_setContentType = nullptr;
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signature_V_PBI builder_setInputPreset = nullptr;
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signature_V_PBI builder_setSessionId = nullptr;
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signature_V_PBPDPV builder_setDataCallback = nullptr;
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signature_V_PBPEPV builder_setErrorCallback = nullptr;
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signature_I_PB builder_delete = nullptr;
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signature_F_PS stream_getFormat = nullptr;
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signature_I_PSPVIL stream_read = nullptr;
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signature_I_PSCPVIL stream_write = nullptr;
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signature_I_PSTPTL stream_waitForStateChange = nullptr;
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signature_I_PSKPLPL stream_getTimestamp = nullptr;
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signature_B_PS stream_isMMapUsed = nullptr;
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signature_I_PS stream_close = nullptr;
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signature_I_PS stream_getChannelCount = nullptr;
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signature_I_PS stream_getDeviceId = nullptr;
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signature_I_PS stream_getBufferSize = nullptr;
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signature_I_PS stream_getBufferCapacity = nullptr;
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signature_I_PS stream_getFramesPerBurst = nullptr;
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signature_I_PS stream_getState = nullptr;
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signature_I_PS stream_getPerformanceMode = nullptr;
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signature_I_PS stream_getSampleRate = nullptr;
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signature_I_PS stream_getSharingMode = nullptr;
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signature_I_PS stream_getXRunCount = nullptr;
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signature_I_PSI stream_setBufferSize = nullptr;
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signature_I_PS stream_requestStart = nullptr;
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signature_I_PS stream_requestPause = nullptr;
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signature_I_PS stream_requestFlush = nullptr;
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signature_I_PS stream_requestStop = nullptr;
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signature_L_PS stream_getFramesRead = nullptr;
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signature_L_PS stream_getFramesWritten = nullptr;
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signature_CPH_I convertResultToText = nullptr;
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signature_I_PS stream_getUsage = nullptr;
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signature_I_PS stream_getContentType = nullptr;
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signature_I_PS stream_getInputPreset = nullptr;
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signature_I_PS stream_getSessionId = nullptr;
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private:
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AAudioLoader() {}
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~AAudioLoader();
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// Load function pointers for specific signatures.
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signature_I_PPB load_I_PPB(const char *name);
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signature_CPH_I load_CPH_I(const char *name);
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signature_V_PBI load_V_PBI(const char *name);
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signature_V_PBPDPV load_V_PBPDPV(const char *name);
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signature_V_PBPEPV load_V_PBPEPV(const char *name);
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signature_I_PB load_I_PB(const char *name);
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signature_I_PBPPS load_I_PBPPS(const char *name);
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signature_I_PS load_I_PS(const char *name);
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signature_L_PS load_L_PS(const char *name);
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signature_F_PS load_F_PS(const char *name);
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signature_B_PS load_B_PS(const char *name);
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signature_I_PSI load_I_PSI(const char *name);
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signature_I_PSPVIL load_I_PSPVIL(const char *name);
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signature_I_PSCPVIL load_I_PSCPVIL(const char *name);
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signature_I_PSTPTL load_I_PSTPTL(const char *name);
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signature_I_PSKPLPL load_I_PSKPLPL(const char *name);
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void *mLibHandle = nullptr;
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};
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} // namespace oboe
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#endif //OBOE_AAUDIO_LOADER_H_
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