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*/
#include "config.h"
#include <math.h>
#import "OFColor.h"
#import "OFOnce.h"
#import "OFString.h"
InvalidArgumentException.h"
@interface OFConcreteColor: OFColor
{
float _red, _green, _blue, _alpha;
OF_RESERVE_IVARS(OFColor, 4)
}
@end
@interface OFColorSingleton: OFConcreteColor
@end
@interface OFColorPlaceholder: OFColorSingleton
@end
#ifdef OF_OBJFW_RUNTIME
@interface OFTaggedPointerColor: OFColorSingleton
@end
static const float allowedImprecision = 0.0000001;
#endif
static int colorTag;
#endif
@implementation OFColorPlaceholder
- (instancetype)initWithRed: (float)red
green: (float)green
blue: (float)blue
alpha: (float)alpha
{
#ifdef OF_OBJFW_RUNTIME
uint8_t redInt = nearbyintf(red * 255);
uint8_t greenInt = nearbyintf(green * 255);
uint8_t blueInt = nearbyintf(blue * 255);
if (fabsf(red * 255 - redInt) < allowedImprecision &&
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;
}
#endif
return (id)[[OFConcreteColor alloc] initWithRed: red
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*/
#include "config.h"
#include <math.h>
#import "OFColor.h"
#import "OFConcreteColor.h"
#import "OFOnce.h"
#import "OFString.h"
#import "OFTaggedPointerColor.h"
@interface OFColorSingleton: OFConcreteColor
@end
@interface OFColorPlaceholder: OFColorSingleton
@end
static struct {
Class isa;
} placeholder;
#ifdef OF_OBJFW_RUNTIME
static const float allowedImprecision = 0.0000001;
#endif
@implementation OFColorPlaceholder
- (instancetype)initWithRed: (float)red
green: (float)green
blue: (float)blue
alpha: (float)alpha
{
#ifdef OF_OBJFW_RUNTIME
uint8_t redInt = nearbyintf(red * 255);
uint8_t greenInt = nearbyintf(green * 255);
uint8_t blueInt = nearbyintf(blue * 255);
if (fabsf(red * 255 - redInt) < allowedImprecision &&
fabsf(green * 255 - greenInt) < allowedImprecision &&
fabsf(blue * 255 - blueInt) < allowedImprecision && alpha == 1) {
id ret = [OFTaggedPointerColor colorWithRed: redInt
green: greenInt
blue: blueInt];
if (ret != nil)
return ret;
}
#endif
return (id)[[OFConcreteColor alloc] initWithRed: red
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- (unsigned int)retainCount
{
return OFMaxRetainCount;
}
@end
@implementation OFConcreteColor
- (instancetype)initWithRed: (float)red
green: (float)green
blue: (float)blue
alpha: (float)alpha
{
self = [super init];
@try {
if (red < 0.0 || red > 1.0 ||
green < 0.0 || green > 1.0 ||
blue < 0.0 || blue > 1.0 ||
alpha < 0.0 || alpha > 1.0)
@throw [OFInvalidArgumentException exception];
_red = red;
_green = green;
_blue = blue;
_alpha = alpha;
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)getRed: (float *)red
green: (float *)green
blue: (float *)blue
alpha: (float *)alpha
{
*red = _red;
*green = _green;
*blue = _blue;
if (alpha != NULL)
*alpha = _alpha;
}
@end
#ifdef OF_OBJFW_RUNTIME
@implementation OFTaggedPointerColor
- (void)getRed: (float *)red
green: (float *)green
blue: (float *)blue
alpha: (float *)alpha
{
uintptr_t value = object_getTaggedPointerValue(self);
*red = (float)(value >> 16) / 255;
*green = (float)((value >> 8) & 0xFF) / 255;
*blue = (float)(value & 0xFF) / 255;
if (alpha != NULL)
*alpha = 1;
}
@end
#endif
if (self != [OFColor class])
return;
#ifdef OF_OBJFW_RUNTIME
colorTag =
objc_registerTaggedPointerClass([OFTaggedPointerColor class]);
#endif
}
+ (instancetype)alloc
{
if (self == [OFColor class])
return (id)&placeholder;
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- (unsigned int)retainCount
{
return OFMaxRetainCount;
}
@end
@implementation OFColor
+ (void)initialize
{
if (self == [OFColor class])
object_setClass((id)&placeholder, [OFColorPlaceholder class]);
}
+ (instancetype)alloc
{
if (self == [OFColor class])
return (id)&placeholder;
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