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https://github.com/hajimehoshi/ebiten.git
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88 lines
2.6 KiB
C
88 lines
2.6 KiB
C
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/*
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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_UTILITIES_H
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#define OBOE_UTILITIES_H
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#include <unistd.h>
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#include <sys/types.h>
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#include <string>
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#include "oboe_oboe_Definitions_android.h"
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namespace oboe {
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/**
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* Convert an array of floats to an array of 16-bit integers.
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*
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* @param source the input array.
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* @param destination the output array.
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* @param numSamples the number of values to convert.
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*/
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void convertFloatToPcm16(const float *source, int16_t *destination, int32_t numSamples);
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/**
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* Convert an array of 16-bit integers to an array of floats.
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*
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* @param source the input array.
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* @param destination the output array.
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* @param numSamples the number of values to convert.
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*/
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void convertPcm16ToFloat(const int16_t *source, float *destination, int32_t numSamples);
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/**
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* @return the size of a sample of the given format in bytes or 0 if format is invalid
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*/
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int32_t convertFormatToSizeInBytes(AudioFormat format);
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/**
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* The text is the ASCII symbol corresponding to the supplied Oboe enum value,
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* or an English message saying the value is unrecognized.
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* This is intended for developers to use when debugging.
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* It is not for displaying to users.
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*
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* @param input object to convert from. @see common/Utilities.cpp for concrete implementations
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* @return text representation of an Oboe enum value. There is no need to call free on this.
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*/
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template <typename FromType>
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const char * convertToText(FromType input);
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/**
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* @param name
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* @return the value of a named system property in a string or empty string
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*/
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std::string getPropertyString(const char * name);
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/**
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* @param name
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* @param defaultValue
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* @return integer value associated with a property or the default value
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*/
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int getPropertyInteger(const char * name, int defaultValue);
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/**
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* Return the version of the SDK that is currently running.
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*
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* For example, on Android, this would return 27 for Oreo 8.1.
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* If the version number cannot be determined then this will return -1.
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*
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* @return version number or -1
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*/
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int getSdkVersion();
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} // namespace oboe
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#endif //OBOE_UTILITIES_H
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