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https://gitlab.linphone.org/BC/public/linphone-iphone.git
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128 lines
4.9 KiB
Objective-C
128 lines
4.9 KiB
Objective-C
/* UILinphone.m
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*
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* Copyright (C) 2012 Belledonne Comunications, Grenoble, France
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Library General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#import "UILinphone.h"
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#import "ColorSpaceUtilities.h"
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#import "Utils.h"
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#import <UIKit/UIView.h>
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@implementation UIColor (LightAndDark)
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- (UIColor *)lumColor:(float)mult {
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float hsbH, hsbS, hsbB;
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float rgbaR, rgbaG, rgbaB, rgbaA;
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// Get RGB
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CGColorRef cgColor = [self CGColor];
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CGColorSpaceRef cgColorSpace = CGColorGetColorSpace(cgColor);
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if(CGColorSpaceGetModel(cgColorSpace) != kCGColorSpaceModelRGB) {
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[LinphoneLogger log:LinphoneLoggerWarning format:@"Can't convert not RGB color"];
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return self;
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} else {
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const CGFloat *colors = CGColorGetComponents(cgColor);
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rgbaR = colors[0];
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rgbaG = colors[1];
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rgbaB = colors[2];
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rgbaA = CGColorGetAlpha(cgColor);
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}
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RGB2HSL(rgbaR, rgbaG, rgbaB, &hsbH, &hsbS, &hsbB);
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hsbB = MIN(MAX(hsbB * mult, 0.0), 1.0);
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HSL2RGB(hsbH, hsbS, hsbB, &rgbaR, &rgbaG, &rgbaB);
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return [UIColor colorWithRed:rgbaR green:rgbaG blue:rgbaB alpha:rgbaA];
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}
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- (UIColor *)adjustHue:(float)hm saturation:(float)sm brightness:(float)bm alpha:(float)am {
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float hsbH, hsbS, hsbB;
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float rgbaR, rgbaG, rgbaB, rgbaA;
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// Get RGB
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CGColorRef cgColor = [self CGColor];
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CGColorSpaceRef cgColorSpace = CGColorGetColorSpace(cgColor);
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if(CGColorSpaceGetModel(cgColorSpace) != kCGColorSpaceModelRGB) {
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[LinphoneLogger log:LinphoneLoggerWarning format:@"Can't convert not RGB color"];
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return self;
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} else {
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const CGFloat *colors = CGColorGetComponents(cgColor);
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rgbaR = colors[0];
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rgbaG = colors[1];
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rgbaB = colors[2];
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rgbaA = CGColorGetAlpha(cgColor);
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}
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RGB2HSL(rgbaR, rgbaG, rgbaB, &hsbH, &hsbS, &hsbB);
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hsbH = MIN(MAX(hsbH + hm, 0.0), 1.0);
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hsbS = MIN(MAX(hsbS + sm, 0.0), 1.0);
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hsbB = MIN(MAX(hsbB + bm, 0.0), 1.0);
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rgbaA = MIN(MAX(rgbaA + am, 0.0), 1.0);
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HSL2RGB(hsbH, hsbS, hsbB, &rgbaR, &rgbaG, &rgbaB);
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return [UIColor colorWithRed:rgbaR green:rgbaG blue:rgbaB alpha:rgbaA];
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}
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- (UIColor *)lighterColor {
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return [self lumColor:1.3];
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}
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- (UIColor *)darkerColor {
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return [self lumColor:0.75];
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}
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@end
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@implementation UIImage (ForceDecode)
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+ (UIImage *)decodedImageWithImage:(UIImage *)image
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{
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CGImageRef imageRef = image.CGImage;
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CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
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CGContextRef context = CGBitmapContextCreate(NULL,
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CGImageGetWidth(imageRef),
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CGImageGetHeight(imageRef),
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8,
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// Just always return width * 4 will be enough
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CGImageGetWidth(imageRef) * 4,
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// System only supports RGB, set explicitly
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colorSpace,
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// Makes system don't need to do extra conversion when displayed.
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// NOTE: here we remove the alpha channel for performance. Most of the time, images loaded
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// from the network are jpeg with no alpha channel. As a TODO, finding a way to detect
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// if alpha channel is necessary would be nice.
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kCGImageAlphaNoneSkipLast | kCGBitmapByteOrder32Little);
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CGColorSpaceRelease(colorSpace);
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if (!context) return nil;
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CGRect rect = (CGRect){CGPointZero,{CGImageGetWidth(imageRef), CGImageGetHeight(imageRef)}};
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CGContextDrawImage(context, rect, imageRef);
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CGImageRef decompressedImageRef = CGBitmapContextCreateImage(context);
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CGContextRelease(context);
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UIImage *decompressedImage = [[UIImage alloc] initWithCGImage:decompressedImageRef scale:image.scale orientation:image.imageOrientation];
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CGImageRelease(decompressedImageRef);
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return [decompressedImage autorelease];
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}
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@end
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