src/3rdparty/phonon/ds9/videorenderer_evr.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Wed, 18 Aug 2010 10:37:55 +0300
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/*  This file is part of the KDE project.
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Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
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This library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2.1 or 3 of the License.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this library.  If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "videorenderer_evr.h"
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#include "qevr9.h"
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#ifndef QT_NO_PHONON_VIDEO
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#include <QtGui/QWidget>
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#include <QtGui/QPainter>
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QT_BEGIN_NAMESPACE
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namespace Phonon
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{
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    namespace DS9
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    {
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        //we have to define them here because not all compilers/sdk have them
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        static const GUID MR_VIDEO_RENDER_SERVICE =     {0x1092a86c, 0xab1a, 0x459a, {0xa3, 0x36, 0x83, 0x1f, 0xbc, 0x4d, 0x11, 0xff} };
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        static const GUID MR_VIDEO_MIXER_SERVICE =      { 0x73cd2fc, 0x6cf4, 0x40b7, {0x88, 0x59, 0xe8, 0x95, 0x52, 0xc8, 0x41, 0xf8} };
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        static const IID IID_IMFVideoDisplayControl =   {0xa490b1e4, 0xab84, 0x4d31, {0xa1, 0xb2, 0x18, 0x1e, 0x03, 0xb1, 0x07, 0x7a} };
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        static const IID IID_IMFVideoMixerControl =     {0xA5C6C53F, 0xC202, 0x4aa5, {0x96, 0x95, 0x17, 0x5B, 0xA8, 0xC5, 0x08, 0xA5} };
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        static const IID IID_IMFVideoProcessor =        {0x6AB0000C, 0xFECE, 0x4d1f, {0xA2, 0xAC, 0xA9, 0x57, 0x35, 0x30, 0x65, 0x6E} };
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        static const IID IID_IMFGetService =            {0xFA993888, 0x4383, 0x415A, {0xA9, 0x30, 0xDD, 0x47, 0x2A, 0x8C, 0xF6, 0xF7} };
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        static const GUID CLSID_EnhancedVideoRenderer = {0xfa10746c, 0x9b63, 0x4b6c, {0xbc, 0x49, 0xfc, 0x30,  0xe, 0xa5, 0xf2, 0x56} };
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        template <typename T> ComPointer<T> getService(const Filter &filter, REFGUID guidService, REFIID riid)
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        {
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            //normally we should use IID_IMFGetService but this introduces another dependency
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            //so here we simply define our own IId with the same value
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            ComPointer<T> ret;
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            ComPointer<IMFGetService> getService(filter, IID_IMFGetService);
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            if (getService) {
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                getService->GetService(guidService, riid, reinterpret_cast<void**>(ret.pparam()));
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            }
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            return ret;
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        }
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        VideoRendererEVR::~VideoRendererEVR()
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        {
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        }
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        bool VideoRendererEVR::isNative() const
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        {
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            return true;
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        }
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        VideoRendererEVR::VideoRendererEVR(QWidget *target) : m_target(target)
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        {
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            m_filter = Filter(CLSID_EnhancedVideoRenderer, IID_IBaseFilter);
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            if (!m_filter) {
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                return;
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            }
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            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
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            if (!filterControl) {
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                m_filter = Filter(); //will release the interface
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                return;
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            }
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            filterControl->SetVideoWindow(reinterpret_cast<HWND>(target->winId()));
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            filterControl->SetAspectRatioMode(MFVideoARMode_None); // We're in control of the size
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        }
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        QImage VideoRendererEVR::snapshot() const
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        {
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            // This will always capture black areas where no video is drawn, if any are present.
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            // Due to the hack in notifyResize()
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            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
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            if (filterControl) {
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                BITMAPINFOHEADER bmi;
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                BYTE *buffer = 0;
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                DWORD bufferSize;
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                LONGLONG timeStamp;
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                bmi.biSize = sizeof(BITMAPINFOHEADER);
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                HRESULT hr = filterControl->GetCurrentImage(&bmi, &buffer, &bufferSize, &timeStamp);
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                if (SUCCEEDED(hr)) {
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                    const int w = qAbs(bmi.biWidth),
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                        h = qAbs(bmi.biHeight);
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                    // Create image and copy data into image.
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                    QImage ret(w, h, QImage::Format_RGB32);
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                    if (!ret.isNull()) {
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                        uchar *data = buffer;
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                        const int bytes_per_line = w * sizeof(QRgb);
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                        for (int y = h - 1; y >= 0; --y) {
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                            qMemCopy(ret.scanLine(y), //destination
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                                data,     //source
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                                bytes_per_line);
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                            data += bytes_per_line;
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                        }
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                    }
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                    ::CoTaskMemFree(buffer);
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                    return ret;
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                }
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            }
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            return QImage();
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        }
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   118
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        QSize VideoRendererEVR::videoSize() const
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        {
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            SIZE nativeSize;
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            SIZE aspectRatioSize;
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            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
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            filterControl->GetNativeVideoSize(&nativeSize, &aspectRatioSize);
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            return QSize(nativeSize.cx, nativeSize.cy);
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        }
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   130
       
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   131
        void VideoRendererEVR::repaintCurrentFrame(QWidget *target, const QRect &rect)
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        {
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            // repaint the video
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            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
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            // All failed results can be safely ignored
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            filterControl->RepaintVideo();
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   137
        }
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   138
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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   139
        void VideoRendererEVR::notifyResize(const QSize &size, Phonon::VideoWidget::AspectRatio aspectRatio,
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   140
            Phonon::VideoWidget::ScaleMode scaleMode)
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parents:
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   141
        {
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   142
            if (!isActive()) {
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   143
                RECT dummyRect = { 0, 0, 0, 0};
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   144
                ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
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                filterControl->SetVideoPosition(0, &dummyRect);
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   146
                return;
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   147
            }
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   148
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   149
            const QSize vsize = videoSize();
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            internalNotifyResize(size, vsize, aspectRatio, scaleMode);
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   151
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   152
            RECT dstRectWin = { 0, 0, size.width(), size.height()};
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   153
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parents:
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            // Resize the Stream output rect instead of the destination rect.
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parents:
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            // Hacky workaround for flicker in the areas outside of the destination rect
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parents:
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   156
            // This way these areas don't exist
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   157
            MFVideoNormalizedRect streamOutputRect = { float(m_dstX) / float(size.width()), float(m_dstY) / float(size.height()),
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   158
                                                       float(m_dstWidth + m_dstX) / float(size.width()), float(m_dstHeight + m_dstY) / float(size.height())};
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   159
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   160
            ComPointer<IMFVideoMixerControl> filterMixer = getService<IMFVideoMixerControl>(m_filter, MR_VIDEO_MIXER_SERVICE, IID_IMFVideoMixerControl);
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parents:
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   161
            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
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parents:
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   162
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   163
            filterMixer->SetStreamOutputRect(0, &streamOutputRect);
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   164
            filterControl->SetVideoPosition(0, &dstRectWin);
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   165
        }
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parents:
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   166
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   167
        void VideoRendererEVR::applyMixerSettings(qreal brightness, qreal contrast, qreal hue, qreal saturation)
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parents:
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   168
        {
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   169
            InputPin sink = BackendNode::pins(m_filter, PINDIR_INPUT).first();
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            OutputPin source;
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   171
            if (FAILED(sink->ConnectedTo(source.pparam()))) {
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   172
                return; //it must be connected to work
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   173
            }
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parents:
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   174
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   175
            // Get the "Video Processor" (used for brightness/contrast/saturation/hue)
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   176
            ComPointer<IMFVideoProcessor> processor = getService<IMFVideoProcessor>(m_filter, MR_VIDEO_MIXER_SERVICE, IID_IMFVideoProcessor);
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            Q_ASSERT(processor);
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   178
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   179
            DXVA2_ValueRange contrastRange;
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            DXVA2_ValueRange brightnessRange;
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   181
            DXVA2_ValueRange saturationRange;
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   182
            DXVA2_ValueRange hueRange;
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   183
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   184
            if (FAILED(processor->GetProcAmpRange(DXVA2_ProcAmp_Contrast, &contrastRange)))
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   185
                return;
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   186
            if (FAILED(processor->GetProcAmpRange(DXVA2_ProcAmp_Brightness, &brightnessRange)))
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   187
                return;
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   188
            if (FAILED(processor->GetProcAmpRange(DXVA2_ProcAmp_Saturation, &saturationRange)))
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   189
                return;
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   190
            if (FAILED(processor->GetProcAmpRange(DXVA2_ProcAmp_Hue, &hueRange)))
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   191
                return;
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parents:
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   192
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   193
            DXVA2_ProcAmpValues values;
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   194
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   195
            values.Contrast = DXVA2FloatToFixed(((contrast < 0
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                                ? DXVA2FixedToFloat(contrastRange.MinValue) : DXVA2FixedToFloat(contrastRange.MaxValue))
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   197
                               - DXVA2FixedToFloat(contrastRange.DefaultValue)) * qAbs(contrast) + DXVA2FixedToFloat(contrastRange.DefaultValue));
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   198
            values.Brightness = DXVA2FloatToFixed(((brightness < 0
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   199
                                ? DXVA2FixedToFloat(brightnessRange.MinValue) : DXVA2FixedToFloat(brightnessRange.MaxValue))
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parents:
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   200
                               - DXVA2FixedToFloat(brightnessRange.DefaultValue)) * qAbs(brightness) + DXVA2FixedToFloat(brightnessRange.DefaultValue));
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parents:
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   201
            values.Saturation = DXVA2FloatToFixed(((saturation < 0
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parents:
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   202
                                ? DXVA2FixedToFloat(saturationRange.MinValue) : DXVA2FixedToFloat(saturationRange.MaxValue))
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Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff changeset
   203
                               - DXVA2FixedToFloat(saturationRange.DefaultValue)) * qAbs(saturation) + DXVA2FixedToFloat(saturationRange.DefaultValue));
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parents:
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   204
            values.Hue = DXVA2FloatToFixed(((hue < 0
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parents:
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   205
                                ? DXVA2FixedToFloat(hueRange.MinValue) : DXVA2FixedToFloat(hueRange.MaxValue))
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parents:
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   206
                               - DXVA2FixedToFloat(hueRange.DefaultValue)) * qAbs(hue) + DXVA2FixedToFloat(hueRange.DefaultValue));
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parents:
diff changeset
   207
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parents:
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   208
            //finally set the settings
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parents:
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   209
            processor->SetProcAmpValues(DXVA2_ProcAmp_Contrast | DXVA2_ProcAmp_Brightness | DXVA2_ProcAmp_Saturation | DXVA2_ProcAmp_Hue, &values);
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parents:
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   210
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   211
        }
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   212
    }
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parents:
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   213
}
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QT_END_NAMESPACE
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#endif //QT_NO_PHONON_VIDEO