618 lines
19 KiB
C#
618 lines
19 KiB
C#
using System;
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using System.Globalization;
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using System.IO;
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using UnityEngine;
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#if UNITY_2018_4_OR_NEWER && !NATIVE_CAMERA_DISABLE_ASYNC_FUNCTIONS
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using System.Threading.Tasks;
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using Unity.Collections;
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using UnityEngine.Networking;
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#endif
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#if UNITY_ANDROID || UNITY_IOS
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using NativeCameraNamespace;
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#endif
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using Object = UnityEngine.Object;
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public static class NativeCamera
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{
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public struct ImageProperties
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{
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public readonly int width;
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public readonly int height;
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public readonly string mimeType;
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public readonly ImageOrientation orientation;
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public ImageProperties( int width, int height, string mimeType, ImageOrientation orientation )
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{
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this.width = width;
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this.height = height;
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this.mimeType = mimeType;
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this.orientation = orientation;
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}
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}
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public struct VideoProperties
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{
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public readonly int width;
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public readonly int height;
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public readonly long duration;
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public readonly float rotation;
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public VideoProperties( int width, int height, long duration, float rotation )
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{
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this.width = width;
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this.height = height;
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this.duration = duration;
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this.rotation = rotation;
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}
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}
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public enum Permission { Denied = 0, Granted = 1, ShouldAsk = 2 };
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public enum Quality { Default = -1, Low = 0, Medium = 1, High = 2 };
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public enum PreferredCamera { Default = -1, Rear = 0, Front = 1 }
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// EXIF orientation: http://sylvana.net/jpegcrop/exif_orientation.html (indices are reordered)
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public enum ImageOrientation { Unknown = -1, Normal = 0, Rotate90 = 1, Rotate180 = 2, Rotate270 = 3, FlipHorizontal = 4, Transpose = 5, FlipVertical = 6, Transverse = 7 };
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public delegate void PermissionCallback( Permission permission );
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public delegate void CameraCallback( string path );
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#region Platform Specific Elements
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#if !UNITY_EDITOR && UNITY_ANDROID
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private static AndroidJavaClass m_ajc = null;
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private static AndroidJavaClass AJC
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{
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get
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{
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if( m_ajc == null )
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m_ajc = new AndroidJavaClass( "com.yasirkula.unity.NativeCamera" );
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return m_ajc;
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}
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}
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private static AndroidJavaObject m_context = null;
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private static AndroidJavaObject Context
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{
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get
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{
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if( m_context == null )
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{
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using( AndroidJavaObject unityClass = new AndroidJavaClass( "com.unity3d.player.UnityPlayer" ) )
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{
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m_context = unityClass.GetStatic<AndroidJavaObject>( "currentActivity" );
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}
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}
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return m_context;
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}
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}
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#elif !UNITY_EDITOR && UNITY_IOS
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern int _NativeCamera_CheckPermission();
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern int _NativeCamera_RequestPermission( int asyncMode );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern int _NativeCamera_CanOpenSettings();
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern void _NativeCamera_OpenSettings();
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern int _NativeCamera_HasCamera();
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern void _NativeCamera_TakePicture( string imageSavePath, int maxSize, int preferredCamera );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern void _NativeCamera_RecordVideo( int quality, int maxDuration, int preferredCamera );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern string _NativeCamera_GetImageProperties( string path );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern string _NativeCamera_GetVideoProperties( string path );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern string _NativeCamera_GetVideoThumbnail( string path, string thumbnailSavePath, int maxSize, double captureTimeInSeconds );
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[System.Runtime.InteropServices.DllImport( "__Internal" )]
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private static extern string _NativeCamera_LoadImageAtPath( string path, string temporaryFilePath, int maxSize );
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#endif
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#if !UNITY_EDITOR && ( UNITY_ANDROID || UNITY_IOS )
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private static string m_temporaryImagePath = null;
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private static string TemporaryImagePath
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{
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get
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{
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if( m_temporaryImagePath == null )
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{
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m_temporaryImagePath = Path.Combine( Application.temporaryCachePath, "tmpImg" );
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Directory.CreateDirectory( Application.temporaryCachePath );
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}
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return m_temporaryImagePath;
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}
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}
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#endif
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#if !UNITY_EDITOR && UNITY_IOS
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private static string m_iOSSelectedImagePath = null;
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private static string IOSSelectedImagePath
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{
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get
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{
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if( m_iOSSelectedImagePath == null )
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{
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m_iOSSelectedImagePath = Path.Combine( Application.temporaryCachePath, "CameraImg" );
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Directory.CreateDirectory( Application.temporaryCachePath );
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}
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return m_iOSSelectedImagePath;
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}
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}
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#endif
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#endregion
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#region Runtime Permissions
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public static Permission CheckPermission( bool isPicturePermission )
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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Permission result = (Permission) AJC.CallStatic<int>( "CheckPermission", Context, isPicturePermission );
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if( result == Permission.Denied && (Permission) PlayerPrefs.GetInt( "NativeCameraPermission", (int) Permission.ShouldAsk ) == Permission.ShouldAsk )
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result = Permission.ShouldAsk;
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return result;
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#elif !UNITY_EDITOR && UNITY_IOS
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return (Permission) _NativeCamera_CheckPermission();
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#else
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return Permission.Granted;
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#endif
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}
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public static Permission RequestPermission( bool isPicturePermission )
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{
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// Don't block the main thread if the permission is already granted
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if( CheckPermission( isPicturePermission ) == Permission.Granted )
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return Permission.Granted;
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#if !UNITY_EDITOR && UNITY_ANDROID
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object threadLock = new object();
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lock( threadLock )
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{
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NCPermissionCallbackAndroid nativeCallback = new NCPermissionCallbackAndroid( threadLock );
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AJC.CallStatic( "RequestPermission", Context, nativeCallback, isPicturePermission, (int) Permission.ShouldAsk );
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if( nativeCallback.Result == -1 )
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System.Threading.Monitor.Wait( threadLock );
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if( (Permission) nativeCallback.Result != Permission.ShouldAsk && PlayerPrefs.GetInt( "NativeCameraPermission", -1 ) != nativeCallback.Result )
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{
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PlayerPrefs.SetInt( "NativeCameraPermission", nativeCallback.Result );
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PlayerPrefs.Save();
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}
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return (Permission) nativeCallback.Result;
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}
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#elif !UNITY_EDITOR && UNITY_IOS
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return (Permission) _NativeCamera_RequestPermission( 0 );
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#else
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return Permission.Granted;
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#endif
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}
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public static void RequestPermissionAsync( PermissionCallback callback, bool isPicturePermission )
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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NCPermissionCallbackAsyncAndroid nativeCallback = new NCPermissionCallbackAsyncAndroid( callback );
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AJC.CallStatic( "RequestPermission", Context, nativeCallback, isPicturePermission, (int) Permission.ShouldAsk );
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#elif !UNITY_EDITOR && UNITY_IOS
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NCPermissionCallbackiOS.Initialize( callback );
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_NativeCamera_RequestPermission( 1 );
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#else
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callback( Permission.Granted );
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#endif
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}
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#if UNITY_2018_4_OR_NEWER && !NATIVE_CAMERA_DISABLE_ASYNC_FUNCTIONS
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public static Task<Permission> RequestPermissionAsync( bool isPicturePermission )
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{
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TaskCompletionSource<Permission> tcs = new TaskCompletionSource<Permission>();
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RequestPermissionAsync( ( permission ) => tcs.SetResult( permission ), isPicturePermission );
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return tcs.Task;
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}
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#endif
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public static bool CanOpenSettings()
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{
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#if !UNITY_EDITOR && UNITY_IOS
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return _NativeCamera_CanOpenSettings() == 1;
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#else
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return true;
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#endif
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}
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public static void OpenSettings()
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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AJC.CallStatic( "OpenSettings", Context );
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#elif !UNITY_EDITOR && UNITY_IOS
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_NativeCamera_OpenSettings();
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#endif
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}
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#endregion
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#region Camera Functions
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public static Permission TakePicture( CameraCallback callback, int maxSize = -1, bool saveAsJPEG = true, PreferredCamera preferredCamera = PreferredCamera.Default )
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{
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Permission result = RequestPermission( true );
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if( result == Permission.Granted && !IsCameraBusy() )
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{
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#if UNITY_EDITOR
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string pickedFile = UnityEditor.EditorUtility.OpenFilePanelWithFilters( "Select image", "", new string[] { "Image files", "png,jpg,jpeg", "All files", "*" } );
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if( callback != null )
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callback( pickedFile != "" ? pickedFile : null );
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#elif UNITY_ANDROID
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AJC.CallStatic( "TakePicture", Context, new NCCameraCallbackAndroid( callback ), (int) preferredCamera );
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#elif UNITY_IOS
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if( maxSize <= 0 )
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maxSize = SystemInfo.maxTextureSize;
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NCCameraCallbackiOS.Initialize( callback );
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_NativeCamera_TakePicture( IOSSelectedImagePath + ( saveAsJPEG ? ".jpeg" : ".png" ), maxSize, (int) preferredCamera );
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#else
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if( callback != null )
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callback( null );
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#endif
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}
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return result;
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}
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public static Permission RecordVideo( CameraCallback callback, Quality quality = Quality.Default, int maxDuration = 0, long maxSizeBytes = 0L, PreferredCamera preferredCamera = PreferredCamera.Default )
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{
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Permission result = RequestPermission( false );
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if( result == Permission.Granted && !IsCameraBusy() )
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{
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#if UNITY_EDITOR
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string pickedFile = UnityEditor.EditorUtility.OpenFilePanelWithFilters( "Select video", "", new string[] { "Video files", "mp4,mov,webm,avi", "All files", "*" } );
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if( callback != null )
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callback( pickedFile != "" ? pickedFile : null );
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#elif UNITY_ANDROID
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AJC.CallStatic( "RecordVideo", Context, new NCCameraCallbackAndroid( callback ), (int) preferredCamera, (int) quality, maxDuration, maxSizeBytes );
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#elif UNITY_IOS
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NCCameraCallbackiOS.Initialize( callback );
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_NativeCamera_RecordVideo( (int) quality, maxDuration, (int) preferredCamera );
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#else
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if( callback != null )
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callback( null );
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#endif
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}
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return result;
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}
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public static bool DeviceHasCamera()
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{
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#if !UNITY_EDITOR && UNITY_ANDROID
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return AJC.CallStatic<bool>( "HasCamera", Context );
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#elif !UNITY_EDITOR && UNITY_IOS
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return _NativeCamera_HasCamera() == 1;
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#else
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return true;
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#endif
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}
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public static bool IsCameraBusy()
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{
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#if !UNITY_EDITOR && UNITY_IOS
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return NCCameraCallbackiOS.IsBusy;
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#else
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return false;
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#endif
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}
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#endregion
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#region Utility Functions
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public static Texture2D LoadImageAtPath( string imagePath, int maxSize = -1, bool markTextureNonReadable = true, bool generateMipmaps = true, bool linearColorSpace = false )
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{
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if( string.IsNullOrEmpty( imagePath ) )
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throw new ArgumentException( "Parameter 'imagePath' is null or empty!" );
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if( !File.Exists( imagePath ) )
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throw new FileNotFoundException( "File not found at " + imagePath );
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if( maxSize <= 0 )
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maxSize = SystemInfo.maxTextureSize;
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#if !UNITY_EDITOR && UNITY_ANDROID
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string loadPath = AJC.CallStatic<string>( "LoadImageAtPath", Context, imagePath, TemporaryImagePath, maxSize );
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#elif !UNITY_EDITOR && UNITY_IOS
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string loadPath = _NativeCamera_LoadImageAtPath( imagePath, TemporaryImagePath, maxSize );
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#else
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string loadPath = imagePath;
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#endif
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string extension = Path.GetExtension( imagePath ).ToLowerInvariant();
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TextureFormat format = ( extension == ".jpg" || extension == ".jpeg" ) ? TextureFormat.RGB24 : TextureFormat.RGBA32;
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Texture2D result = new Texture2D( 2, 2, format, generateMipmaps, linearColorSpace );
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try
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{
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if( !result.LoadImage( File.ReadAllBytes( loadPath ), markTextureNonReadable ) )
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{
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Debug.LogWarning( "Couldn't load image at path: " + loadPath );
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Object.DestroyImmediate( result );
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return null;
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}
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}
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catch( Exception e )
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{
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Debug.LogException( e );
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Object.DestroyImmediate( result );
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return null;
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}
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finally
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{
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if( loadPath != imagePath )
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{
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try
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{
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File.Delete( loadPath );
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}
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catch { }
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}
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}
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return result;
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}
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#if UNITY_2018_4_OR_NEWER && !NATIVE_CAMERA_DISABLE_ASYNC_FUNCTIONS
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public static async Task<Texture2D> LoadImageAtPathAsync( string imagePath, int maxSize = -1, bool markTextureNonReadable = true )
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{
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if( string.IsNullOrEmpty( imagePath ) )
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throw new ArgumentException( "Parameter 'imagePath' is null or empty!" );
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if( !File.Exists( imagePath ) )
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throw new FileNotFoundException( "File not found at " + imagePath );
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if( maxSize <= 0 )
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maxSize = SystemInfo.maxTextureSize;
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#if !UNITY_EDITOR && UNITY_ANDROID
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string temporaryImagePath = TemporaryImagePath; // Must be accessed from main thread
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string loadPath = await TryCallNativeAndroidFunctionOnSeparateThread( () => AJC.CallStatic<string>( "LoadImageAtPath", Context, imagePath, temporaryImagePath, maxSize ) );
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#elif !UNITY_EDITOR && UNITY_IOS
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string temporaryImagePath = TemporaryImagePath; // Must be accessed from main thread
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string loadPath = await Task.Run( () => _NativeCamera_LoadImageAtPath( imagePath, temporaryImagePath, maxSize ) );
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#else
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string loadPath = imagePath;
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#endif
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Texture2D result = null;
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using( UnityWebRequest www = UnityWebRequestTexture.GetTexture( "file://" + loadPath, markTextureNonReadable ) )
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{
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UnityWebRequestAsyncOperation asyncOperation = www.SendWebRequest();
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while( !asyncOperation.isDone )
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await Task.Yield();
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#if UNITY_2020_1_OR_NEWER
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if( www.result != UnityWebRequest.Result.Success )
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#else
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if( www.isNetworkError || www.isHttpError )
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#endif
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{
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Debug.LogWarning( "Couldn't use UnityWebRequest to load image, falling back to LoadImage: " + www.error );
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}
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else
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result = DownloadHandlerTexture.GetContent( www );
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}
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if( !result ) // Fallback to Texture2D.LoadImage if something goes wrong
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{
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string extension = Path.GetExtension( imagePath ).ToLowerInvariant();
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TextureFormat format = ( extension == ".jpg" || extension == ".jpeg" ) ? TextureFormat.RGB24 : TextureFormat.RGBA32;
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result = new Texture2D( 2, 2, format, true, false );
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try
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{
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if( !result.LoadImage( File.ReadAllBytes( loadPath ), markTextureNonReadable ) )
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{
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Debug.LogWarning( "Couldn't load image at path: " + loadPath );
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Object.DestroyImmediate( result );
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return null;
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}
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}
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catch( Exception e )
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{
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Debug.LogException( e );
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Object.DestroyImmediate( result );
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return null;
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}
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finally
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{
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if( loadPath != imagePath )
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{
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try
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{
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File.Delete( loadPath );
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}
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catch { }
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}
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}
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}
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return result;
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}
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#endif
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public static Texture2D GetVideoThumbnail( string videoPath, int maxSize = -1, double captureTimeInSeconds = -1.0, bool markTextureNonReadable = true, bool generateMipmaps = true, bool linearColorSpace = false )
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{
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if( maxSize <= 0 )
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maxSize = SystemInfo.maxTextureSize;
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#if !UNITY_EDITOR && UNITY_ANDROID
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string thumbnailPath = AJC.CallStatic<string>( "GetVideoThumbnail", Context, videoPath, TemporaryImagePath + ".png", false, maxSize, captureTimeInSeconds );
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#elif !UNITY_EDITOR && UNITY_IOS
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string thumbnailPath = _NativeCamera_GetVideoThumbnail( videoPath, TemporaryImagePath + ".png", maxSize, captureTimeInSeconds );
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#else
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string thumbnailPath = null;
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#endif
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if( !string.IsNullOrEmpty( thumbnailPath ) )
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return LoadImageAtPath( thumbnailPath, maxSize, markTextureNonReadable, generateMipmaps, linearColorSpace );
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else
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return null;
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}
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#if UNITY_2018_4_OR_NEWER && !NATIVE_CAMERA_DISABLE_ASYNC_FUNCTIONS
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public static async Task<Texture2D> GetVideoThumbnailAsync( string videoPath, int maxSize = -1, double captureTimeInSeconds = -1.0, bool markTextureNonReadable = true )
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{
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if( maxSize <= 0 )
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maxSize = SystemInfo.maxTextureSize;
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#if !UNITY_EDITOR && UNITY_ANDROID
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string temporaryImagePath = TemporaryImagePath; // Must be accessed from main thread
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string thumbnailPath = await TryCallNativeAndroidFunctionOnSeparateThread( () => AJC.CallStatic<string>( "GetVideoThumbnail", Context, videoPath, temporaryImagePath + ".png", false, maxSize, captureTimeInSeconds ) );
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#elif !UNITY_EDITOR && UNITY_IOS
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string temporaryImagePath = TemporaryImagePath; // Must be accessed from main thread
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string thumbnailPath = await Task.Run( () => _NativeCamera_GetVideoThumbnail( videoPath, temporaryImagePath + ".png", maxSize, captureTimeInSeconds ) );
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#else
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string thumbnailPath = null;
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#endif
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if( !string.IsNullOrEmpty( thumbnailPath ) )
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return await LoadImageAtPathAsync( thumbnailPath, maxSize, markTextureNonReadable );
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else
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return null;
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}
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private static async Task<T> TryCallNativeAndroidFunctionOnSeparateThread<T>( Func<T> function )
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{
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T result = default( T );
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bool hasResult = false;
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await Task.Run( () =>
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{
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if( AndroidJNI.AttachCurrentThread() != 0 )
|
|
Debug.LogWarning( "Couldn't attach JNI thread, calling native function on the main thread" );
|
|
else
|
|
{
|
|
try
|
|
{
|
|
result = function();
|
|
hasResult = true;
|
|
}
|
|
finally
|
|
{
|
|
AndroidJNI.DetachCurrentThread();
|
|
}
|
|
}
|
|
} );
|
|
|
|
return hasResult ? result : function();
|
|
}
|
|
#endif
|
|
|
|
public static ImageProperties GetImageProperties( string imagePath )
|
|
{
|
|
if( !File.Exists( imagePath ) )
|
|
throw new FileNotFoundException( "File not found at " + imagePath );
|
|
|
|
#if !UNITY_EDITOR && UNITY_ANDROID
|
|
string value = AJC.CallStatic<string>( "GetImageProperties", Context, imagePath );
|
|
#elif !UNITY_EDITOR && UNITY_IOS
|
|
string value = _NativeCamera_GetImageProperties( imagePath );
|
|
#else
|
|
string value = null;
|
|
#endif
|
|
|
|
int width = 0, height = 0;
|
|
string mimeType = null;
|
|
ImageOrientation orientation = ImageOrientation.Unknown;
|
|
if( !string.IsNullOrEmpty( value ) )
|
|
{
|
|
string[] properties = value.Split( '>' );
|
|
if( properties != null && properties.Length >= 4 )
|
|
{
|
|
if( !int.TryParse( properties[0].Trim(), out width ) )
|
|
width = 0;
|
|
if( !int.TryParse( properties[1].Trim(), out height ) )
|
|
height = 0;
|
|
|
|
mimeType = properties[2].Trim();
|
|
if( mimeType.Length == 0 )
|
|
{
|
|
string extension = Path.GetExtension( imagePath ).ToLowerInvariant();
|
|
if( extension == ".png" )
|
|
mimeType = "image/png";
|
|
else if( extension == ".jpg" || extension == ".jpeg" )
|
|
mimeType = "image/jpeg";
|
|
else if( extension == ".gif" )
|
|
mimeType = "image/gif";
|
|
else if( extension == ".bmp" )
|
|
mimeType = "image/bmp";
|
|
else
|
|
mimeType = null;
|
|
}
|
|
|
|
int orientationInt;
|
|
if( int.TryParse( properties[3].Trim(), out orientationInt ) )
|
|
orientation = (ImageOrientation) orientationInt;
|
|
}
|
|
}
|
|
|
|
return new ImageProperties( width, height, mimeType, orientation );
|
|
}
|
|
|
|
public static VideoProperties GetVideoProperties( string videoPath )
|
|
{
|
|
if( !File.Exists( videoPath ) )
|
|
throw new FileNotFoundException( "File not found at " + videoPath );
|
|
|
|
#if !UNITY_EDITOR && UNITY_ANDROID
|
|
string value = AJC.CallStatic<string>( "GetVideoProperties", Context, videoPath );
|
|
#elif !UNITY_EDITOR && UNITY_IOS
|
|
string value = _NativeCamera_GetVideoProperties( videoPath );
|
|
#else
|
|
string value = null;
|
|
#endif
|
|
|
|
int width = 0, height = 0;
|
|
long duration = 0L;
|
|
float rotation = 0f;
|
|
if( !string.IsNullOrEmpty( value ) )
|
|
{
|
|
string[] properties = value.Split( '>' );
|
|
if( properties != null && properties.Length >= 4 )
|
|
{
|
|
if( !int.TryParse( properties[0].Trim(), out width ) )
|
|
width = 0;
|
|
if( !int.TryParse( properties[1].Trim(), out height ) )
|
|
height = 0;
|
|
if( !long.TryParse( properties[2].Trim(), out duration ) )
|
|
duration = 0L;
|
|
if( !float.TryParse( properties[3].Trim().Replace( ',', '.' ), NumberStyles.Float, CultureInfo.InvariantCulture, out rotation ) )
|
|
rotation = 0f;
|
|
}
|
|
}
|
|
|
|
if( rotation == -90f )
|
|
rotation = 270f;
|
|
|
|
return new VideoProperties( width, height, duration, rotation );
|
|
}
|
|
#endregion
|
|
} |