CFNumber.h
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/* akvirtualcamera, virtual camera for Mac and Windows.
* Copyright (C) 2024 Gonzalo Exequiel Pedone
*
* akvirtualcamera is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* akvirtualcamera is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with akvirtualcamera. If not, see <http://www.gnu.org/licenses/>.
*
* Web-Site: http://webcamoid.github.io/
*/
#ifndef CFNUMBER_H
#define CFNUMBER_H
#include "Allocators.h"
#include "CFType.h"
using CFNumber = CFType;
using CFNumberRef = CFTypeRef;
enum CFNumberType
{
kCFNumberIntType = 9,
kCFNumberDoubleType = 13
};
struct _CFNumberData
{
CFNumberType type;
union
{
int i;
double d;
} data;
_CFNumberData(CFNumberType type, const void *valuePtr):
type(type)
{
switch (type) {
case kCFNumberIntType:
this->data.i = *reinterpret_cast<const int *>(valuePtr);
break;
case kCFNumberDoubleType:
this->data.d = *reinterpret_cast<const double *>(valuePtr);
break;
}
}
};
using _CFNumberDataRef = _CFNumberData *;
inline CFTypeID CFNumberGetTypeID()
{
return 0x2;
}
inline CFNumberRef CFNumberCreate(CFAllocatorRef allocator,
CFNumberType type,
const void *valuePtr)
{
auto numberType = new CFNumber;
numberType->type = CFNumberGetTypeID();
numberType->data = new _CFNumberData(type, valuePtr);
numberType->size = sizeof(_CFNumberData);
numberType->deleter = [] (void *data) {
delete reinterpret_cast<_CFNumberDataRef>(data);
};
numberType->ref = 1;
return numberType;
}
inline bool CFNumberGetValue(CFNumberRef number,
CFNumberType type,
void *valuePtr)
{
auto self = reinterpret_cast<_CFNumberDataRef>(number->data);
bool ok = false;
switch (type) {
case kCFNumberIntType:
switch (self->type) {
case kCFNumberIntType:
*reinterpret_cast<int *>(valuePtr) = self->data.i;
ok = true;
break;
case kCFNumberDoubleType:
*reinterpret_cast<int *>(valuePtr) = int(self->data.d);
ok = true;
break;
default:
break;
}
break;
case kCFNumberDoubleType:
switch (self->type) {
case kCFNumberIntType:
*reinterpret_cast<double *>(valuePtr) = double(self->data.i);
ok = true;
break;
case kCFNumberDoubleType:
*reinterpret_cast<double *>(valuePtr) = self->data.d;
ok = true;
break;
default:
break;
}
break;
}
return ok;
}
#endif // CFNUMBER_H