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CarbonSndPlayDB.h
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CarbonSndPlayDB.h
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/*
File: CarbonSndPlayDB.h
Description:Headers for routines demonstrating how to create a function that works
much like the original SndPlayDoubleBuffer but is Carbon compatible
(which SndPlayDoubleBuffer isn't).
Author: MC, ERA
Copyright: Copyright 1999-2001 Apple Computer, Inc. All rights reserved.
Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, 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 "Apple Software"), to use,
reproduce, modify and redistribute the Apple Software, with or without
modifications, in source and/or binary forms; provided that if you redistribute
the Apple Software in its entirety and without modifications, you must retain
this notice and the following text and disclaimers in all such redistributions of
the Apple Software. Neither the name, trademarks, service marks or logos of
Apple Computer, Inc. may be used to endorse or promote products derived from the
Apple Software without specific prior written permission from Apple. Except as
expressly stated in this notice, no other rights or licenses, express or 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 INTERRUPTION)
ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
OF THE APPLE SOFTWARE, HOWEVER CAUSED 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.
Change History (most recent first):
*/
struct SndDoubleBuffer {
long dbNumFrames;
long dbFlags;
long dbUserInfo[2];
SInt8 dbSoundData[1];
};
typedef struct SndDoubleBuffer SndDoubleBuffer;
typedef SndDoubleBuffer * SndDoubleBufferPtr;
typedef CALLBACK_API( void, SndDoubleBackProcPtr )(SndChannelPtr channel, SndDoubleBufferPtr doubleBufferPtr);
typedef STACK_UPP_TYPE(SndDoubleBackProcPtr) SndDoubleBackUPP;
struct SndDoubleBufferHeader {
short dbhNumChannels;
short dbhSampleSize;
short dbhCompressionID;
short dbhPacketSize;
UnsignedFixed dbhSampleRate;
SndDoubleBufferPtr dbhBufferPtr[2];
SndDoubleBackUPP dbhDoubleBack;
};
typedef struct SndDoubleBufferHeader SndDoubleBufferHeader;
typedef SndDoubleBufferHeader * SndDoubleBufferHeaderPtr;
struct SndDoubleBufferHeader2 {
short dbhNumChannels;
short dbhSampleSize;
short dbhCompressionID;
short dbhPacketSize;
UnsignedFixed dbhSampleRate;
SndDoubleBufferPtr dbhBufferPtr[2];
SndDoubleBackUPP dbhDoubleBack;
OSType dbhFormat;
};
typedef struct SndDoubleBufferHeader2 SndDoubleBufferHeader2;
typedef SndDoubleBufferHeader2 * SndDoubleBufferHeader2Ptr;
enum {
dbBufferReady = 0x00000001, /*double buffer is filled*/
dbLastBuffer = 0x00000004 /*last double buffer to play*/
};
OSErr CarbonSndPlayDoubleBuffer (SndChannelPtr chan, SndDoubleBufferHeaderPtr theParams);
OSErr MySndDoImmediate (SndChannelPtr chan, SndCommand * cmd);