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common/quicktime_win32/CGDataConsumer.h

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