videoprocamp.cpp
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/* akvirtualcamera, virtual camera for Mac and Windows.
* Copyright (C) 2020 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/
*/
#include <map>
#include <vector>
#include <dshow.h>
#include "videoprocamp.h"
#include "PlatformUtils/src/utils.h"
#include "VCamUtils/src/utils.h"
namespace AkVCam
{
class VideoProcAmpPrivate
{
public:
std::map<LONG, LONG> m_control;
};
class ProcAmpPrivate
{
public:
LONG property;
LONG min;
LONG max;
LONG step;
LONG defaultValue;
LONG flags;
inline static const std::vector<ProcAmpPrivate> &controls()
{
static const std::vector<ProcAmpPrivate> controls {
{VideoProcAmp_Brightness , -255, 255, 1, 0, VideoProcAmp_Flags_Manual},
{VideoProcAmp_Contrast , -255, 255, 1, 0, VideoProcAmp_Flags_Manual},
{VideoProcAmp_Saturation , -255, 255, 1, 0, VideoProcAmp_Flags_Manual},
{VideoProcAmp_Gamma , -255, 255, 1, 0, VideoProcAmp_Flags_Manual},
{VideoProcAmp_Hue , -359, 359, 1, 0, VideoProcAmp_Flags_Manual},
{VideoProcAmp_ColorEnable, 0, 1, 1, 1, VideoProcAmp_Flags_Manual}
};
return controls;
}
static inline const ProcAmpPrivate *byProperty(LONG property)
{
for (auto &control: controls())
if (control.property == property)
return &control;
return nullptr;
}
};
}
AkVCam::VideoProcAmp::VideoProcAmp():
CUnknown(this, IID_IAMVideoProcAmp)
{
this->d = new VideoProcAmpPrivate;
}
AkVCam::VideoProcAmp::~VideoProcAmp()
{
delete this->d;
}
HRESULT AkVCam::VideoProcAmp::GetRange(LONG Property,
LONG *pMin,
LONG *pMax,
LONG *pSteppingDelta,
LONG *pDefault,
LONG *pCapsFlags)
{
AkLogFunction();
if (!pMin || !pMax || !pSteppingDelta || !pDefault || !pCapsFlags)
return E_POINTER;
*pMin = 0;
*pMax = 0;
*pSteppingDelta = 0;
*pDefault = 0;
*pCapsFlags = 0;
for (auto &control: ProcAmpPrivate::controls())
if (control.property == Property) {
*pMin = control.min;
*pMax = control.max;
*pSteppingDelta = control.step;
*pDefault = control.defaultValue;
*pCapsFlags = control.flags;
return S_OK;
}
return E_PROP_ID_UNSUPPORTED;
}
HRESULT AkVCam::VideoProcAmp::Set(LONG Property, LONG lValue, LONG Flags)
{
AkLogFunction();
for (auto &control: ProcAmpPrivate::controls())
if (control.property == Property) {
if (lValue < control.min
|| lValue > control.max
|| Flags != control.flags)
return E_INVALIDARG;
this->d->m_control[Property] = lValue;
AKVCAM_EMIT(this, PropertyChanged, Property, lValue, Flags)
return S_OK;
}
return E_PROP_ID_UNSUPPORTED;
}
HRESULT AkVCam::VideoProcAmp::Get(LONG Property, LONG *lValue, LONG *Flags)
{
AkLogFunction();
if (!lValue || !Flags)
return E_POINTER;
*lValue = 0;
*Flags = 0;
for (auto &control: ProcAmpPrivate::controls())
if (control.property == Property) {
if (this->d->m_control.count(Property))
*lValue = this->d->m_control[Property];
else
*lValue = control.defaultValue;
*Flags = control.flags;
return S_OK;
}
return E_PROP_ID_UNSUPPORTED;
}