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140 lines
3.3 KiB
140 lines
3.3 KiB
/* |
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File: CGDataConsumer.h |
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Contains: CoreGraphics data consumer |
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Version: QuickTime 7.3 |
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Copyright: (c) 2007 (c) 2000-2001 by Apple Computer, Inc., all rights reserved. |
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Bugs?: For bug reports, consult the following page on |
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the World Wide Web: |
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http://developer.apple.com/bugreporter/ |
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*/ |
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#ifndef CGDATACONSUMER_H_ |
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#define CGDATACONSUMER_H_ |
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#ifndef __CGBASE__ |
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#include <CGBase.h> |
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#endif |
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#ifndef __CFURL__ |
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#include <CFURL.h> |
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#endif |
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#if PRAGMA_ONCE |
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#pragma once |
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#endif |
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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#if PRAGMA_IMPORT |
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#pragma import on |
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#endif |
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#if PRAGMA_STRUCT_ALIGN |
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#pragma options align=mac68k |
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#elif PRAGMA_STRUCT_PACKPUSH |
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#pragma pack(push, 2) |
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#elif PRAGMA_STRUCT_PACK |
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#pragma pack(2) |
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#endif |
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typedef struct CGDataConsumer* CGDataConsumerRef; |
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typedef CALLBACK_API_C( size_t , CGPutBytesProcPtr )(void *info, const void *buffer, size_t count); |
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typedef CALLBACK_API_C( void , CGReleaseConsumerProcPtr )(void * info); |
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/* Callbacks for accessing data. |
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* `putBytes' copies `count' bytes from `buffer' to the consumer, and |
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* returns the number of bytes copied. It should return 0 if no more data |
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* can be written to the consumer. |
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* `releaseConsumer', if non-NULL, is called when the consumer is freed. */ |
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struct CGDataConsumerCallbacks { |
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CGPutBytesProcPtr putBytes; |
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CGReleaseConsumerProcPtr releaseConsumer; |
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}; |
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typedef struct CGDataConsumerCallbacks CGDataConsumerCallbacks; |
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/* Create a data consumer using `callbacks' to handle the data. `info' is |
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* passed to each of the callback functions. */ |
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/* |
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* CGDataConsumerCreate() |
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* |
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* Availability: |
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* Non-Carbon CFM: not available |
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* CarbonLib: not available |
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* Mac OS X: in version 10.0 and later |
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*/ |
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EXTERN_API_C( CGDataConsumerRef ) |
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CGDataConsumerCreate( |
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void * info, |
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const CGDataConsumerCallbacks * callbacks); |
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/* Create a data consumer which writes data to `url'. */ |
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/* |
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* CGDataConsumerCreateWithURL() |
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* |
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* Availability: |
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* Non-Carbon CFM: not available |
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* CarbonLib: not available |
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* Mac OS X: in version 10.0 and later |
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*/ |
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EXTERN_API_C( CGDataConsumerRef ) |
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CGDataConsumerCreateWithURL(CFURLRef url); |
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/* Increment the retain count of `consumer' and return it. All data |
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* consumers are created with an initial retain count of 1. */ |
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/* |
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* CGDataConsumerRetain() |
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* |
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* Availability: |
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* Non-Carbon CFM: not available |
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* CarbonLib: not available |
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* Mac OS X: in version 10.0 and later |
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*/ |
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EXTERN_API_C( CGDataConsumerRef ) |
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CGDataConsumerRetain(CGDataConsumerRef consumer); |
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/* Decrement the retain count of `consumer'. If the retain count reaches |
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* 0, then release it and any associated resources. */ |
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/* |
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* CGDataConsumerRelease() |
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* |
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* Availability: |
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* Non-Carbon CFM: not available |
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* CarbonLib: not available |
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* Mac OS X: in version 10.0 and later |
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*/ |
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EXTERN_API_C( void ) |
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CGDataConsumerRelease(CGDataConsumerRef consumer); |
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#if PRAGMA_STRUCT_ALIGN |
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#pragma options align=reset |
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#elif PRAGMA_STRUCT_PACKPUSH |
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#pragma pack(pop) |
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#elif PRAGMA_STRUCT_PACK |
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#pragma pack() |
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#endif |
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#ifdef PRAGMA_IMPORT_OFF |
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#pragma import off |
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#elif PRAGMA_IMPORT |
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#pragma import reset |
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#endif |
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#ifdef __cplusplus |
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} |
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#endif |
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#endif /* CGDATACONSUMER_H_ */ |
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