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* Alternatively, it may be distributed under the terms of the GNU General
* Public License, either version 2 or 3, which can be found in the file
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#include <math.h>
#import "OFColor.h"
#import "OFOnce.h"
#import "OFString.h"
#import "OFInvalidArgumentException.h"
@interface OFColor ()
+ (instancetype)of_alloc;
@end
@interface OFColorSingleton: OFColor
@end
@interface OFColorPlaceholder: OFColorSingleton
@end
#ifdef OF_OBJFW_RUNTIME
@interface OFTaggedPointerColor: OFColorSingleton
@end
static const float allowedImprecision = 0.0000001;
#endif
static struct {
Class isa;
} placeholder;
#ifdef OF_OBJFW_RUNTIME
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@implementation OFColorPlaceholder
- (instancetype)initWithRed: (float)red
green: (float)green
blue: (float)blue
alpha: (float)alpha
{
#ifdef OF_OBJFW_RUNTIME
uint8_t redInt = red * 255;
uint8_t greenInt = green * 255;
uint8_t blueInt = blue * 255;
uint8_t redInt = nearbyintf(red * 255);
uint8_t greenInt = nearbyintf(green * 255);
uint8_t blueInt = nearbyintf(blue * 255);
if (fabsf(red * 255 - redInt) < allowedImprecision &&
if (red * 255 == redInt && green * 255 == greenInt &&
blue * 255 == blueInt && alpha == 1) {
fabsf(green * 255 - greenInt) < allowedImprecision &&
fabsf(blue * 255 - blueInt) < allowedImprecision && alpha == 1) {
id ret = objc_createTaggedPointer(colorTag,
(uintptr_t)redInt << 16 | (uintptr_t)greenInt << 8 |
(uintptr_t)blueInt);
if (ret != nil)
return ret;
}
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- (OFString *)description
{
float red, green, blue, alpha;
[self getRed: &red green: &green blue: &blue alpha: &alpha];
return [OFString stringWithFormat:
@"<OFColor red=%f green=%f blue=%f alpha=%f>",
red, green, blue, alpha];
@"<%@ red=%f green=%f blue=%f alpha=%f>",
self.class, red, green, blue, alpha];
}
@end
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