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Diffstat (limited to 'libs/appleutility/CoreAudio/AudioFile/AFPublic/DataSource.h')
-rw-r--r--libs/appleutility/CoreAudio/AudioFile/AFPublic/DataSource.h236
1 files changed, 118 insertions, 118 deletions
diff --git a/libs/appleutility/CoreAudio/AudioFile/AFPublic/DataSource.h b/libs/appleutility/CoreAudio/AudioFile/AFPublic/DataSource.h
index 6c79c94df9..916ae071ef 100644
--- a/libs/appleutility/CoreAudio/AudioFile/AFPublic/DataSource.h
+++ b/libs/appleutility/CoreAudio/AudioFile/AFPublic/DataSource.h
@@ -2,14 +2,14 @@
File: DataSource.h
Abstract: Part of CoreAudio Utility Classes
Version: 1.1
-
+
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple
Inc. ("Apple") in consideration of your agreement to the following
terms, and your use, installation, modification or redistribution of
this Apple software constitutes acceptance of these terms. If you do
not agree with these terms, please do not use, install, modify or
redistribute this Apple software.
-
+
In consideration of your agreement to abide by the following terms, and
subject to these terms, Apple grants you a personal, non-exclusive
license, under Apple's copyrights in this original Apple software (the
@@ -25,13 +25,13 @@
implied, are granted by Apple herein, including but not limited to any
patent rights that may be infringed by your derivative works or by other
works in which the Apple Software may be incorporated.
-
+
The Apple Software is provided by Apple on an "AS IS" basis. APPLE
MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION
THE IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND
OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
-
+
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
@@ -40,9 +40,9 @@
AND WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE),
STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
-
+
Copyright (C) 2014 Apple Inc. All Rights Reserved.
-
+
*/
#ifndef __DataSource_h__
#define __DataSource_h__
@@ -63,10 +63,10 @@
class DataSource
{
public:
-
+
DataSource(Boolean inCloseOnDelete);
virtual ~DataSource();
-
+
virtual OSStatus GetSize32(UInt32& outSize)
{
SInt64 size64;
@@ -76,43 +76,43 @@ public:
outSize = (UInt32)size64;
return noErr;
}
-
+
virtual OSStatus GetSize(SInt64& outSize) =0;
-
+
virtual OSStatus SetSize(SInt64 inSize)=0;
-
- virtual OSStatus GetPos(SInt64& outPos) const=0;
-
- /* non seekable data sources should use fsAtMark for the positionMode (or SEEK_CUR with offset zero,
- or SEEK_SET with offset equal to the current position in the stream, in other words no seeking from the
+
+ virtual OSStatus GetPos(SInt64& outPos) const=0;
+
+ /* non seekable data sources should use fsAtMark for the positionMode (or SEEK_CUR with offset zero,
+ or SEEK_SET with offset equal to the current position in the stream, in other words no seeking from the
current position is allowed.)
*/
-
- virtual OSStatus ReadBytes( UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- void *buffer,
+
+ virtual OSStatus ReadBytes( UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ void *buffer,
UInt32* actualCount)=0;
-
- virtual OSStatus WriteBytes(UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- const void *buffer,
+
+ virtual OSStatus WriteBytes(UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ const void *buffer,
UInt32* actualCount)=0;
-
+
virtual void SetCloseOnDelete(Boolean inFlag) { mCloseOnDelete = inFlag; }
-
+
virtual Boolean CanSeek() const=0;
virtual Boolean CanGetSize() const=0;
virtual Boolean CanSetSize() const=0;
virtual Boolean CanRead() const=0;
virtual Boolean CanWrite() const=0;
-
+
protected:
Boolean mCloseOnDelete;
-
+
/* utility method */
- SInt64 CalcOffset( UInt16 positionMode,
+ SInt64 CalcOffset( UInt16 positionMode,
SInt64 positionOffset,
SInt64 currentOffset,
SInt64 size);
@@ -131,33 +131,33 @@ class MacFile_DataSource : public DataSource
{
FSIORefNum mFileNum;
SInt8 mPermissions;
-
+
public:
MacFile_DataSource( FSIORefNum inForkRefNum, SInt8 inPermissions, Boolean inCloseOnDelete);
virtual ~MacFile_DataSource();
-
+
virtual OSStatus GetSize(SInt64& outSize);
- virtual OSStatus GetPos(SInt64& outPos) const;
-
+ virtual OSStatus GetPos(SInt64& outPos) const;
+
virtual OSStatus SetSize(SInt64 inSize);
-
- virtual OSStatus ReadBytes( UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- void *buffer,
+
+ virtual OSStatus ReadBytes( UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ void *buffer,
UInt32* actualCount);
-
- virtual OSStatus WriteBytes(UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- const void *buffer,
+
+ virtual OSStatus WriteBytes(UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ const void *buffer,
UInt32* actualCount);
-
+
virtual Boolean CanSeek() const { return true; }
virtual Boolean CanGetSize() const { return true; }
virtual Boolean CanSetSize() const { return true; }
-
+
virtual Boolean CanRead() const { return mPermissions & kAudioFileReadPermission; }
virtual Boolean CanWrite() const { return mPermissions & kAudioFileWritePermission; }
};
@@ -171,39 +171,39 @@ class UnixFile_DataSource : public DataSource
UInt32 mNoCache;
SInt64 mCachedSize;
SInt64 mFilePointer;
-
+
public:
UnixFile_DataSource( int inFD, SInt8 inPermissions, Boolean inCloseOnDelete);
virtual ~UnixFile_DataSource();
-
+
virtual OSStatus GetSize(SInt64& outSize);
- virtual OSStatus GetPos(SInt64& outPos) const;
-
+ virtual OSStatus GetPos(SInt64& outPos) const;
+
virtual OSStatus SetSize(SInt64 inSize);
-
- virtual OSStatus ReadBytes( UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- void *buffer,
+
+ virtual OSStatus ReadBytes( UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ void *buffer,
UInt32* actualCount);
-
- virtual OSStatus WriteBytes(UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- const void *buffer,
+
+ virtual OSStatus WriteBytes(UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ const void *buffer,
UInt32* actualCount);
-
+
virtual Boolean CanSeek() const { return true; }
virtual Boolean CanGetSize() const { return true; }
virtual Boolean CanSetSize() const { return true; }
-
+
virtual Boolean CanRead() const { return mPermissions & kAudioFileReadPermission; }
virtual Boolean CanWrite() const { return mPermissions & kAudioFileWritePermission; }
private:
- SInt64 UFCurrentOffset (UInt16 positionMode,
+ SInt64 UFCurrentOffset (UInt16 positionMode,
SInt64 positionOffset);
};
@@ -225,50 +225,50 @@ class Cached_DataSource : public DataSource
SInt64 mBodyCacheOffset;
SInt64 mOffset;
Boolean mOwnDataSource;
-
+
public:
Cached_DataSource(DataSource* inDataSource, UInt32 inHeaderCacheSize = 4096, UInt32 inBodyCacheSize = 32768, Boolean inOwnDataSource = true)
- : DataSource(false),
- mDataSource(inDataSource), mHeaderCacheSize(inHeaderCacheSize),
- mBodyCacheSize(inBodyCacheSize), mBodyCacheCurSize(0), mBodyCacheOffset(-1),
+ : DataSource(false),
+ mDataSource(inDataSource), mHeaderCacheSize(inHeaderCacheSize),
+ mBodyCacheSize(inBodyCacheSize), mBodyCacheCurSize(0), mBodyCacheOffset(-1),
mOffset(0),
mOwnDataSource(inOwnDataSource)
{
}
-
+
virtual ~Cached_DataSource()
{
if (mOwnDataSource) delete mDataSource;
}
-
+
virtual OSStatus GetSize(SInt64& outSize) { return mDataSource->GetSize(outSize); }
- virtual OSStatus GetPos(SInt64& outPos) const { return mDataSource->GetPos(outPos); }
-
+ virtual OSStatus GetPos(SInt64& outPos) const { return mDataSource->GetPos(outPos); }
+
virtual OSStatus SetSize(SInt64 inSize) { return mDataSource->SetSize(inSize); }
-
- virtual OSStatus ReadBytes( UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- void *buffer,
+
+ virtual OSStatus ReadBytes( UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ void *buffer,
UInt32* actualCount);
-
- virtual OSStatus WriteBytes( UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- const void *buffer,
+
+ virtual OSStatus WriteBytes( UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ const void *buffer,
UInt32* actualCount);
-
- OSStatus ReadFromHeaderCache( SInt64 offset,
+
+ OSStatus ReadFromHeaderCache( SInt64 offset,
UInt32 requestCount,
- void *buffer,
+ void *buffer,
UInt32* actualCount);
-
+
virtual Boolean CanSeek() const { return mDataSource->CanSeek(); }
virtual Boolean CanGetSize() const { return mDataSource->CanGetSize(); }
virtual Boolean CanSetSize() const { return mDataSource->CanSetSize(); }
-
+
virtual Boolean CanRead() const { return mDataSource->CanRead(); }
virtual Boolean CanWrite() const { return mDataSource->CanWrite(); }
};
@@ -286,37 +286,37 @@ class Seekable_DataSource : public DataSource
{
void * mClientData;
SInt64 mOffset;
-
+
AudioFile_ReadProc mReadFunc;
AudioFile_WriteProc mWriteFunc;
AudioFile_GetSizeProc mSizeFunc;
AudioFile_SetSizeProc mSetSizeFunc;
-
+
public:
Seekable_DataSource( void * inClientData,
- AudioFile_ReadProc inReadFunc,
- AudioFile_WriteProc inWriteFunc,
+ AudioFile_ReadProc inReadFunc,
+ AudioFile_WriteProc inWriteFunc,
AudioFile_GetSizeProc inGetSizeFunc,
AudioFile_SetSizeProc inSetSizeFunc
);
-
+
virtual ~Seekable_DataSource();
-
+
virtual OSStatus GetSize(SInt64& outSize);
- virtual OSStatus GetPos(SInt64& outPos) const { outPos = mOffset; return noErr; };
-
+ virtual OSStatus GetPos(SInt64& outPos) const { outPos = mOffset; return noErr; };
+
virtual OSStatus SetSize(SInt64 inSize);
-
- virtual OSStatus ReadBytes( UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- void *buffer,
+
+ virtual OSStatus ReadBytes( UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ void *buffer,
UInt32* actualCount);
-
- virtual OSStatus WriteBytes(UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- const void *buffer,
+
+ virtual OSStatus WriteBytes(UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ const void *buffer,
UInt32* actualCount);
virtual Boolean CanSeek() const { return true; }
@@ -340,24 +340,24 @@ public:
const void * inData,
SInt64 inStartOffset = 0
) : DataSource(false), mDataByteSize(inDataByteSize), mData((const char*)inData), mStartOffset(inStartOffset), mOffset(mStartOffset) {}
-
+
virtual ~Buffer_DataSource() {}
-
+
virtual OSStatus GetSize(SInt64& outSize) { outSize = mDataByteSize + mStartOffset; return noErr; }
- virtual OSStatus GetPos(SInt64& outPos) const { outPos = mOffset; return noErr; };
-
+ virtual OSStatus GetPos(SInt64& outPos) const { outPos = mOffset; return noErr; };
+
virtual OSStatus SetSize(SInt64 inSize) { throw std::runtime_error("not writable"); }
-
- virtual OSStatus ReadBytes( UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- void *buffer,
+
+ virtual OSStatus ReadBytes( UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ void *buffer,
UInt32* actualCount);
-
- virtual OSStatus WriteBytes(UInt16 positionMode,
- SInt64 positionOffset,
- UInt32 requestCount,
- const void *buffer,
+
+ virtual OSStatus WriteBytes(UInt16 positionMode,
+ SInt64 positionOffset,
+ UInt32 requestCount,
+ const void *buffer,
UInt32* actualCount) { throw std::runtime_error("not writable"); }
virtual Boolean CanSeek() const { return true; }
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-20 05:02:13 +0000