src/3rdparty/phonon/ds9/videorenderer_evr.cpp
changeset 30 5dc02b23752f
child 33 3e2da88830cd
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/phonon/ds9/videorenderer_evr.cpp	Tue Jul 06 15:10:48 2010 +0300
@@ -0,0 +1,215 @@
+/*  This file is part of the KDE project.
+
+Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+
+This library is free software: you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 2.1 or 3 of the License.
+
+This library 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this library.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#include "videorenderer_evr.h"
+#include "qevr9.h"
+
+#ifndef QT_NO_PHONON_VIDEO
+
+#include <QtGui/QWidget>
+#include <QtGui/QPainter>
+
+QT_BEGIN_NAMESPACE
+
+namespace Phonon
+{
+    namespace DS9
+    {
+        //we have to define them here because not all compilers/sdk have them
+        static const GUID MR_VIDEO_RENDER_SERVICE =     {0x1092a86c, 0xab1a, 0x459a, {0xa3, 0x36, 0x83, 0x1f, 0xbc, 0x4d, 0x11, 0xff} };
+        static const GUID MR_VIDEO_MIXER_SERVICE =      { 0x73cd2fc, 0x6cf4, 0x40b7, {0x88, 0x59, 0xe8, 0x95, 0x52, 0xc8, 0x41, 0xf8} };
+        static const IID IID_IMFVideoDisplayControl =   {0xa490b1e4, 0xab84, 0x4d31, {0xa1, 0xb2, 0x18, 0x1e, 0x03, 0xb1, 0x07, 0x7a} };
+        static const IID IID_IMFVideoMixerControl =     {0xA5C6C53F, 0xC202, 0x4aa5, {0x96, 0x95, 0x17, 0x5B, 0xA8, 0xC5, 0x08, 0xA5} };
+        static const IID IID_IMFVideoProcessor =        {0x6AB0000C, 0xFECE, 0x4d1f, {0xA2, 0xAC, 0xA9, 0x57, 0x35, 0x30, 0x65, 0x6E} };
+        static const IID IID_IMFGetService =            {0xFA993888, 0x4383, 0x415A, {0xA9, 0x30, 0xDD, 0x47, 0x2A, 0x8C, 0xF6, 0xF7} };
+        static const GUID CLSID_EnhancedVideoRenderer = {0xfa10746c, 0x9b63, 0x4b6c, {0xbc, 0x49, 0xfc, 0x30,  0xe, 0xa5, 0xf2, 0x56} };
+
+        template <typename T> ComPointer<T> getService(const Filter &filter, REFGUID guidService, REFIID riid)
+        {
+            //normally we should use IID_IMFGetService but this introduces another dependency
+            //so here we simply define our own IId with the same value
+            ComPointer<IMFGetService> getService(filter, IID_IMFGetService);
+            Q_ASSERT(getService);
+            T *ptr = 0;
+            HRESULT hr = getService->GetService(guidService, riid, reinterpret_cast<void **>(&ptr));
+            if (!SUCCEEDED(hr) || ptr == 0)
+                Q_ASSERT(!SUCCEEDED(hr) && ptr != 0);
+            ComPointer<T> service(ptr);
+            return service;
+        }
+
+        VideoRendererEVR::~VideoRendererEVR()
+        {
+        }
+
+        bool VideoRendererEVR::isNative() const
+        {
+            return true;
+        }
+
+        VideoRendererEVR::VideoRendererEVR(QWidget *target) : m_target(target)
+        {
+            m_filter = Filter(CLSID_EnhancedVideoRenderer, IID_IBaseFilter);
+            if (!m_filter) {
+                return;
+            }
+
+            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
+
+            filterControl->SetVideoWindow(reinterpret_cast<HWND>(target->winId()));
+            filterControl->SetAspectRatioMode(MFVideoARMode_None); // We're in control of the size
+        }
+
+        QImage VideoRendererEVR::snapshot() const
+        {
+            // This will always capture black areas where no video is drawn, if any are present.
+            // Due to the hack in notifyResize()
+            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
+            if (filterControl) {
+                BITMAPINFOHEADER bmi;
+                BYTE *buffer = 0;
+                DWORD bufferSize;
+                LONGLONG timeStamp;
+
+                bmi.biSize = sizeof(BITMAPINFOHEADER);
+
+                HRESULT hr = filterControl->GetCurrentImage(&bmi, &buffer, &bufferSize, &timeStamp);
+                if (SUCCEEDED(hr)) {
+
+                    const int w = qAbs(bmi.biWidth),
+                        h = qAbs(bmi.biHeight);
+
+                    // Create image and copy data into image.
+                    QImage ret(w, h, QImage::Format_RGB32);
+
+                    if (!ret.isNull()) {
+                        uchar *data = buffer;
+                        const int bytes_per_line = w * sizeof(QRgb);
+                        for (int y = h - 1; y >= 0; --y) {
+                            qMemCopy(ret.scanLine(y), //destination
+                                data,     //source
+                                bytes_per_line);
+                            data += bytes_per_line;
+                        }
+                    }
+                    ::CoTaskMemFree(buffer);
+                    return ret;
+                }
+            }
+            return QImage();
+        }
+
+        QSize VideoRendererEVR::videoSize() const
+        {
+            SIZE nativeSize;
+            SIZE aspectRatioSize;
+
+            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
+
+            filterControl->GetNativeVideoSize(&nativeSize, &aspectRatioSize);
+
+            return QSize(nativeSize.cx, nativeSize.cy);
+        }
+       
+        void VideoRendererEVR::repaintCurrentFrame(QWidget *target, const QRect &rect)
+        {
+            // repaint the video
+            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
+            // All failed results can be safely ignored
+            filterControl->RepaintVideo();
+        }
+
+        void VideoRendererEVR::notifyResize(const QSize &size, Phonon::VideoWidget::AspectRatio aspectRatio,
+            Phonon::VideoWidget::ScaleMode scaleMode)
+        {
+            if (!isActive()) {
+                RECT dummyRect = { 0, 0, 0, 0};
+                ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
+                filterControl->SetVideoPosition(0, &dummyRect);
+                return;
+            }
+
+            const QSize vsize = videoSize();
+            internalNotifyResize(size, vsize, aspectRatio, scaleMode);
+
+            RECT dstRectWin = { 0, 0, size.width(), size.height()};
+
+            // Resize the Stream output rect instead of the destination rect.
+            // Hacky workaround for flicker in the areas outside of the destination rect
+            // This way these areas don't exist
+            MFVideoNormalizedRect streamOutputRect = { float(m_dstX) / float(size.width()), float(m_dstY) / float(size.height()),
+                                                       float(m_dstWidth + m_dstX) / float(size.width()), float(m_dstHeight + m_dstY) / float(size.height())};
+
+            ComPointer<IMFVideoMixerControl> filterMixer = getService<IMFVideoMixerControl>(m_filter, MR_VIDEO_MIXER_SERVICE, IID_IMFVideoMixerControl);
+            ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
+
+            filterMixer->SetStreamOutputRect(0, &streamOutputRect);
+            filterControl->SetVideoPosition(0, &dstRectWin);
+        }
+
+        void VideoRendererEVR::applyMixerSettings(qreal brightness, qreal contrast, qreal hue, qreal saturation)
+        {
+            InputPin sink = BackendNode::pins(m_filter, PINDIR_INPUT).first();
+            OutputPin source;
+            if (FAILED(sink->ConnectedTo(source.pparam()))) {
+                return; //it must be connected to work
+            }
+
+            // Get the "Video Processor" (used for brightness/contrast/saturation/hue)
+            ComPointer<IMFVideoProcessor> processor = getService<IMFVideoProcessor>(m_filter, MR_VIDEO_MIXER_SERVICE, IID_IMFVideoProcessor);
+            Q_ASSERT(processor);
+
+            DXVA2_ValueRange contrastRange;
+            DXVA2_ValueRange brightnessRange;
+            DXVA2_ValueRange saturationRange;
+            DXVA2_ValueRange hueRange;
+
+            if (FAILED(processor->GetProcAmpRange(DXVA2_ProcAmp_Contrast, &contrastRange)))
+                return;
+            if (FAILED(processor->GetProcAmpRange(DXVA2_ProcAmp_Brightness, &brightnessRange)))
+                return;
+            if (FAILED(processor->GetProcAmpRange(DXVA2_ProcAmp_Saturation, &saturationRange)))
+                return;
+            if (FAILED(processor->GetProcAmpRange(DXVA2_ProcAmp_Hue, &hueRange)))
+                return;
+
+            DXVA2_ProcAmpValues values;
+
+            values.Contrast = DXVA2FloatToFixed(((contrast < 0
+                                ? DXVA2FixedToFloat(contrastRange.MinValue) : DXVA2FixedToFloat(contrastRange.MaxValue))
+                               - DXVA2FixedToFloat(contrastRange.DefaultValue)) * qAbs(contrast) + DXVA2FixedToFloat(contrastRange.DefaultValue));
+            values.Brightness = DXVA2FloatToFixed(((brightness < 0
+                                ? DXVA2FixedToFloat(brightnessRange.MinValue) : DXVA2FixedToFloat(brightnessRange.MaxValue))
+                               - DXVA2FixedToFloat(brightnessRange.DefaultValue)) * qAbs(brightness) + DXVA2FixedToFloat(brightnessRange.DefaultValue));
+            values.Saturation = DXVA2FloatToFixed(((saturation < 0
+                                ? DXVA2FixedToFloat(saturationRange.MinValue) : DXVA2FixedToFloat(saturationRange.MaxValue))
+                               - DXVA2FixedToFloat(saturationRange.DefaultValue)) * qAbs(saturation) + DXVA2FixedToFloat(saturationRange.DefaultValue));
+            values.Hue = DXVA2FloatToFixed(((hue < 0
+                                ? DXVA2FixedToFloat(hueRange.MinValue) : DXVA2FixedToFloat(hueRange.MaxValue))
+                               - DXVA2FixedToFloat(hueRange.DefaultValue)) * qAbs(hue) + DXVA2FixedToFloat(hueRange.DefaultValue));
+
+            //finally set the settings
+            processor->SetProcAmpValues(DXVA2_ProcAmp_Contrast | DXVA2_ProcAmp_Brightness | DXVA2_ProcAmp_Saturation | DXVA2_ProcAmp_Hue, &values);
+
+        }
+    }
+}
+
+QT_END_NAMESPACE
+
+#endif //QT_NO_PHONON_VIDEO