ChipmunkImageSampler.h

// Copyright 2013 Howling Moon Software. All rights reserved.
// See http://chipmunk2d.net/legal.php for more information.

#import "ObjectiveChipmunk/ObjectiveChipmunk.h"
#import "ChipmunkAutoGeometry.h"

#import <TargetConditionals.h>

#if TARGET_OS_IPHONE == 1
  #import <CoreGraphics/CoreGraphics.h>
#endif


@interface ChipmunkBitmapSampler : ChipmunkAbstractSampler {
@private
  NSUInteger _width, _height, _stride;
  NSUInteger _bytesPerPixel, _component;
  
  bool _flip;
  const uint8_t *_pixels;
  NSData *_pixelData;
  
  cpFloat _borderValue;
  
  cpBB _outputRect;
}

@property(nonatomic, readonly) NSUInteger width;

@property(nonatomic, readonly) NSUInteger height;

@property(nonatomic, readonly) NSUInteger bytesPerPixel;

@property(nonatomic, assign) NSUInteger component;

@property(nonatomic, readonly) NSData *pixelData;

@property(nonatomic, assign) cpBB outputRect;

-(id)initWithWidth:(NSUInteger)width height:(NSUInteger)height stride:(NSUInteger)stride bytesPerPixel:(NSUInteger)bytesPerPixel component:(NSUInteger)component flip:(bool)flip pixelData:(NSData *)pixelData;

-(void)setBorderRepeat;

-(void)setBorderValue:(cpFloat)borderValue;

-(ChipmunkPolylineSet *)marchAllWithBorder:(bool)bordered hard:(bool)hard;

@end



@interface ChipmunkCGContextSampler : ChipmunkBitmapSampler {
@private
  CGContextRef _context;
}

@property(nonatomic, readonly) CGContextRef context;

@property(nonatomic, readonly) NSMutableData *pixelData;

-(id)initWithWidth:(unsigned long)width height:(unsigned long)height colorSpace:(CGColorSpaceRef)colorSpace bitmapInfo:(CGBitmapInfo)bitmapInfo component:(NSUInteger)component;

@end



@interface ChipmunkImageSampler : ChipmunkCGContextSampler

+(CGImageRef)loadImage:(NSURL *)url;

-(id)initWithImage:(CGImageRef)image isMask:(bool)isMask contextWidth:(NSUInteger)width contextHeight:(NSUInteger)height;

-(id)initWithImageFile:(NSURL *)url isMask:(bool)isMask;

+(ChipmunkImageSampler *)samplerWithImageFile:(NSURL *)url isMask:(bool)isMask;

@end