#import <UIKit/UIKit.h>
#import "GPUImageOutput.h"
@interface GPUImagePicture : GPUImageOutput
{
CGSize pixelSizeOfImage;
BOOL hasProcessedImage;
dispatch_semaphore_t imageUpdateSemaphore;
}
// Initialization and teardown
- (id)initWithURL:(NSURL *)url;
- (id)initWithImage:(UIImage *)newImageSource;
- (id)initWithCGImage:(CGImageRef)newImageSource;
- (id)initWithImage:(UIImage *)newImageSource smoothlyScaleOutput:(BOOL)smoothlyScaleOutput;
- (id)initWithCGImage:(CGImageRef)newImageSource smoothlyScaleOutput:(BOOL)smoothlyScaleOutput;
// Image rendering
- (void)processImage;
- (CGSize)outputImageSize;
/**
* Process image with all targets and filters asynchronously
* The completion handler is called after processing finished in the
* GPU's dispatch queue - and only if this method did not return NO.
*
* @returns NO if resource is blocked and processing is discarded, YES otherwise
*/
- (BOOL)processImageWithCompletionHandler:(void (^)(void))completion;
- (void)processImageUpToFilter:(GPUImageOutput<GPUImageInput> *)finalFilterInChain withCompletionHandler:(void (^)(UIImage *processedImage))block;
@end
-
曹云霄 authoredf9bcd7d0