1 files changed, 113 insertions, 0 deletions
diff --git a/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qlinuxmediadevice.h b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qlinuxmediadevice.h
new file mode 100644
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+++ b/src/plugins/platforms/eglfs/deviceintegration/eglfs_kms_vsp2/qlinuxmediadevice.h
@@ -0,0 +1,113 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QLINUXMEDIADEVICE_H
+#define QLINUXMEDIADEVICE_H
+
+#include <linux/v4l2-mediabus.h>
+
+#include <QtCore/qglobal.h>
+#include <QtCore/QString>
+
+QT_BEGIN_NAMESPACE
+
+class QSize;
+class QRect;
+
+class QLinuxMediaDevice
+{
+public:
+    QLinuxMediaDevice(const QString &devicePath);
+    ~QLinuxMediaDevice();
+
+    QString model();
+    QString deviceName();
+    bool resetLinks();
+    struct media_link *parseLink(const QString &link);
+    struct media_pad *parsePad(const QString &pad);
+    bool enableLink(struct media_link *link);
+    bool disableLink(struct media_link *link);
+    struct media_entity *getEntity(const QString &name);
+    int openVideoDevice(const QString &name);
+
+    class CaptureSubDevice
+    {
+    public:
+        CaptureSubDevice(QLinuxMediaDevice *mediaDevice, const QString &name);
+        bool setFormat(const QSize &size, uint32_t pixelFormat = V4L2_PIX_FMT_ABGR32); //TODO: fix to match output device
+        bool clearBuffers();
+        bool requestBuffer();
+        bool queueBuffer(int dmabufFd, const QSize &bufferSize);
+        bool dequeueBuffer();
+        bool streamOn();
+        bool streamOff();
+    private:
+        int m_subdevFd = -1;
+    };
+
+    class OutputSubDevice
+    {
+    public:
+        OutputSubDevice(QLinuxMediaDevice *mediaDevice, const QString &name);
+        bool setFormat(const QSize &size, uint32_t pixelFormat, uint32_t bytesPerLine);
+        bool clearBuffers();
+        bool requestBuffer();
+        bool queueBuffer(int dmabufFd, uint bytesUsed, uint length);
+        bool streamOn();
+        bool streamOff();
+    private:
+        int m_subdevFd = -1;
+    };
+
+    static bool setSubdevFormat(struct media_pad *pad, const QSize &size, uint32_t mbusFormat = MEDIA_BUS_FMT_ARGB8888_1X32);
+
+    static bool setSubdevSelection(struct media_pad *pad, const QRect &geometry, uint target);
+    static bool setSubdevCrop(struct media_pad *pad, const QRect &geometry);
+    static bool setSubdevCompose(struct media_pad *pad, const QRect &geometry);
+
+private:
+    static bool streamOn(int subDeviceFd, v4l2_buf_type bufferType);
+    static bool streamOff(int subDeviceFd, v4l2_buf_type bufferType);
+    struct media_device *m_mediaDevice = nullptr;
+    const struct media_device_info *m_info = nullptr;
+};
+
+QT_END_NAMESPACE
+
+#endif // QLINUXMEDIADEVICE_H