64 lines
3.2 KiB
C
64 lines
3.2 KiB
C
|
//
|
||
|
|
// FrameProcessorPlugin.h
|
||
|
|
// VisionCamera
|
||
|
|
//
|
||
|
|
// Created by Marc Rousavy on 01.05.21.
|
||
|
|
// Copyright © 2021 Facebook. All rights reserved.
|
||
|
|
//
|
||
|
|
|
||
|
|
#ifndef FrameProcessorPlugin_h
|
||
|
|
#define FrameProcessorPlugin_h
|
||
|
|
|
||
|
|
#import <Foundation/Foundation.h>
|
||
|
|
#import "FrameProcessorPluginRegistry.h"
|
||
|
|
#import <CoreMedia/CMSampleBuffer.h>
|
||
|
|
|
||
|
|
@protocol FrameProcessorPluginBase
|
||
|
|
+ (id) callback:(CMSampleBufferRef)buffer withArgs:(NSArray<id>*)args;
|
||
|
|
@end
|
||
|
|
|
||
|
|
|
||
|
|
#define VISION_CONCAT2(A, B) A##B
|
||
|
|
#define VISION_CONCAT(A, B) VISION_CONCAT2(A, B)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Use this Macro to register the given function as a Frame Processor.
|
||
|
|
* * Make sure the given function is a C-style function with the following signature: static inline id callback(CMSampleBufferRef buffer)
|
||
|
|
* * Make sure the given function's name is unique across other frame processor plugins
|
||
|
|
* * Make sure your frame processor returns a Value that can be converted to JS
|
||
|
|
* * Make sure to use this Macro in an @implementation, not @interface
|
||
|
|
*
|
||
|
|
* The JS function will have the same name as the given Objective-C function, but with a "__" prefix.
|
||
|
|
* Make sure to add that function to the babel.config.js under reanimated's "globals" option, and add TypeScript type declarations.
|
||
|
|
*/
|
||
|
|
#define VISION_EXPORT_FRAME_PROCESSOR(frame_processor) \
|
||
|
|
\
|
||
|
|
+(void)load \
|
||
|
|
{ \
|
||
|
|
[FrameProcessorPluginRegistry addFrameProcessorPlugin:@"__" @ #frame_processor callback:^id(CMSampleBufferRef buffer, NSArray<id>* args) { \
|
||
|
|
return frame_processor(buffer, args); \
|
||
|
|
}]; \
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Same as VISION_EXPORT_FRAME_PROCESSOR, but uses __attribute__((constructor)) for
|
||
|
|
* registration. Useful for registering swift classes that forbids use of +(void)load.
|
||
|
|
*/
|
||
|
|
#define VISION_EXPORT_SWIFT_FRAME_PROCESSOR(name, objc_name) \
|
||
|
|
objc_name : NSObject<FrameProcessorPluginBase> \
|
||
|
|
@end \
|
||
|
|
\
|
||
|
|
@interface objc_name (FrameProcessorPlugin) \
|
||
|
|
@end \
|
||
|
|
@implementation objc_name (FrameProcessorPlugin) \
|
||
|
|
\
|
||
|
|
__attribute__((constructor)) static void VISION_CONCAT(initialize_, objc_name)() \
|
||
|
|
{ \
|
||
|
|
[FrameProcessorPluginRegistry addFrameProcessorPlugin:@"__" @ #name callback:^id(CMSampleBufferRef buffer, NSArray<id>* args) { \
|
||
|
|
return [objc_name callback:buffer withArgs:args]; \
|
||
|
|
}]; \
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* FrameProcessorPlugin_h */
|