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// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QVSP2BLENDINGDEVICE_H
#define QVSP2BLENDINGDEVICE_H
#include <QtCore/QList>
#include <QtCore/QRect>
#include <QtCore/qglobal.h>
#include "qlinuxmediadevice.h"
QT_BEGIN_NAMESPACE
class QSize;
class QVsp2BlendingDevice
{
public:
QVsp2BlendingDevice(const QSize& screenSize); //TODO: add support for output format as well?
bool enableInput(int i, const QRect &bufferGeometry, uint drmFormat, uint bytesPerLine);
int enableInput(const QRect &bufferGeometry, uint drmFormat, uint bytesPerLine);
bool disableInput(int i);
bool setInputBuffer(int index, int dmabufFd);
bool setInputPosition(int index, const QPoint &position);
bool setInputAlpha(int index, qreal alpha);
bool blend(int outputDmabufFd);
int numInputs() const;
bool isDirty() const { return m_dirty; }
bool hasContinuousLayers() const;
private:
bool streamOn();
bool streamOff();
bool setInputFormat(int i, const QRect &bufferGeometry, uint pixelFormat, uint bytesPerLine);
QLinuxMediaDevice m_mediaDevice;
QLinuxMediaDevice::CaptureSubDevice *m_wpfOutput = nullptr; // wpf output
struct Input {
bool enabled = false;
QRect geometry;
qreal alpha = 1;
struct {
int fd = -1;
uint bytesUsed = 0;
uint length = 0;
} dmabuf;
struct media_link *linkToBru = nullptr; //rpf.x:1 -> bru:x
struct media_pad *inputFormatPad = nullptr; // rpf.x:0
struct media_pad *outputFormatPad = nullptr; // rpf.x:1
int outputFormatFd = -1; // rpf.x:1 (again, because v4l2_subdev_* doesn't have a way to set alpha)
struct media_pad *bruInputFormatPad = nullptr; // bru:x
QLinuxMediaDevice::OutputSubDevice *rpfInput = nullptr; // rpf.x input
};
QList<struct Input> m_inputs;
const QSize m_screenSize;
bool m_dirty = true;
};
QT_END_NAMESPACE
#endif // QVSP2BLENDINGDEVICE
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