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Add CIImage support on transform methods

This commit is contained in:
DreamPiggy 2019-12-29 14:55:45 +08:00
parent cb7c4d5990
commit 4425c823ad
1 changed files with 51 additions and 5 deletions
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56
SDWebImage/Core/UIImage+Transform.m
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@ -194,13 +194,30 @@ static inline UIColor * SDGetColorFromPixel(Pixel_8888 pixel, CGBitmapInfo bitma
}
- (nullable UIImage *)sd_croppedImageWithRect:(CGRect)rect {
if (!self.CGImage) return nil;
rect.origin.x *= self.scale;
rect.origin.y *= self.scale;
rect.size.width *= self.scale;
rect.size.height *= self.scale;
if (rect.size.width <= 0 || rect.size.height <= 0) return nil;
CGImageRef imageRef = CGImageCreateWithImageInRect(self.CGImage, rect);
# SD_UIKIT || SD_MAC
if (self.CIImage) {
CIImage *ciImage = [self.CIImage imageByCroppingToRect:rect];
#if SD_UIKIT
UIImage *image = [UIImage imageWithCIImage:ciImage scale:self.scale orientation:self.imageOrientation];
#else
UIImage *image = [[UIImage alloc] initWithCIImage:ciImage scale:self.scale orientation:kCGImagePropertyOrientationUp];
#endif
return image;
}
#endif
CGImageRef cgImage = self.CGImage;
if (!cgImage) {
return nil;
}
CGImageRef imageRef = CGImageCreateWithImageInRect(cgImage, rect);
if (!imageRef) {
return nil;
}
@ -214,7 +231,6 @@ static inline UIColor * SDGetColorFromPixel(Pixel_8888 pixel, CGBitmapInfo bitma
}
- (nullable UIImage *)sd_roundedCornerImageWithRadius:(CGFloat)cornerRadius corners:(SDRectCorner)corners borderWidth:(CGFloat)borderWidth borderColor:(nullable UIColor *)borderColor {
if (!self.CGImage) return nil;
SDGraphicsImageRendererFormat *format = [[SDGraphicsImageRendererFormat alloc] init];
format.scale = self.scale;
SDGraphicsImageRenderer *renderer = [[SDGraphicsImageRenderer alloc] initWithSize:self.size format:format];
@ -256,12 +272,23 @@ static inline UIColor * SDGetColorFromPixel(Pixel_8888 pixel, CGBitmapInfo bitma
}
- (nullable UIImage *)sd_rotatedImageWithAngle:(CGFloat)angle fitSize:(BOOL)fitSize {
if (!self.CGImage) return nil;
size_t width = self.size.width;
size_t height = self.size.height;
CGRect newRect = CGRectApplyAffineTransform(CGRectMake(0, 0, width, height),
fitSize ? CGAffineTransformMakeRotation(angle) : CGAffineTransformIdentity);
if (self.CIImage) {
CGAffineTransform transform = CGAffineTransformMakeRotation(angle);
transform = CGAffineTransformTranslate(transform, +(newRect.size.width * 0.5), +(newRect.size.height * 0.5));
CIImage *ciImage = [self.CIImage imageByApplyingTransform:transform];
#if SD_UIKIT || SD_WATCH
UIImage *image = [UIImage imageWithCIImage:ciImage scale:self.scale orientation:self.imageOrientation];
#else
UIImage *image = [[UIImage alloc] initWithCIImage:ciImage scale:self.scale orientation:kCGImagePropertyOrientationUp];
#endif
return image;
}
SDGraphicsImageRendererFormat *format = [[SDGraphicsImageRendererFormat alloc] init];
format.scale = self.scale;
SDGraphicsImageRenderer *renderer = [[SDGraphicsImageRenderer alloc] initWithSize:newRect.size format:format];
@ -283,10 +310,29 @@ static inline UIColor * SDGetColorFromPixel(Pixel_8888 pixel, CGBitmapInfo bitma
}
- (nullable UIImage *)sd_flippedImageWithHorizontal:(BOOL)horizontal vertical:(BOOL)vertical {
if (!self.CGImage) return nil;
size_t width = self.size.width;
size_t height = self.size.height;
if (self.CIImage) {
CGAffineTransform transform = CGAffineTransformIdentity;
// Use UIKit coordinate system
if (horizontal) {
CGAffineTransform flipHorizontal = CGAffineTransformMake(-1, 0, 0, 1, width, 0);
transform = CGAffineTransformConcat(transform, flipHorizontal);
}
if (vertical) {
CGAffineTransform flipVertical = CGAffineTransformMake(1, 0, 0, -1, 0, height);
transform = CGAffineTransformConcat(transform, flipVertical);
}
CIImage *ciImage = [self.CIImage imageByApplyingTransform:transform];
#if SD_UIKIT || SD_WATCH
UIImage *image = [UIImage imageWithCIImage:ciImage scale:self.scale orientation:self.imageOrientation];
#else
UIImage *image = [[UIImage alloc] initWithCIImage:ciImage scale:self.scale orientation:kCGImagePropertyOrientationUp];
#endif
return image;
}
SDGraphicsImageRendererFormat *format = [[SDGraphicsImageRendererFormat alloc] init];
format.scale = self.scale;
SDGraphicsImageRenderer *renderer = [[SDGraphicsImageRenderer alloc] initWithSize:self.size format:format];