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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit356978ecce23e076e1b622d5d41dd8c04bf7bcf8 (patch)
tree8e1874cc32750e30b84b2561387d48424e076ae3 /src/3rdparty/phonon/ds9/videorenderer_evr.cpp
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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diff --git a/src/3rdparty/phonon/ds9/videorenderer_evr.cpp b/src/3rdparty/phonon/ds9/videorenderer_evr.cpp
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+/* 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<T> ret;
+ ComPointer<IMFGetService> getService(filter, IID_IMFGetService);
+ if (getService) {
+ getService->GetService(guidService, riid, reinterpret_cast<void**>(ret.pparam()));
+ }
+ return ret;
+ }
+
+ VideoRendererEVR::~VideoRendererEVR()
+ {
+ }
+
+ bool VideoRendererEVR::isNative() const
+ {
+ return true;
+ }
+
+ VideoRendererEVR::VideoRendererEVR(QWidget *target) : m_target(target)
+ {
+ if (QSysInfo::WindowsVersion < QSysInfo::WV_VISTA)
+ return;
+ m_filter = Filter(CLSID_EnhancedVideoRenderer, IID_IBaseFilter);
+ if (!m_filter) {
+ return;
+ }
+
+ ComPointer<IMFVideoDisplayControl> filterControl = getService<IMFVideoDisplayControl>(m_filter, MR_VIDEO_RENDER_SERVICE, IID_IMFVideoDisplayControl);
+ if (!filterControl ||
+ FAILED(filterControl->SetVideoWindow(reinterpret_cast<HWND>(target->winId()))) ||
+ FAILED(filterControl->SetAspectRatioMode(MFVideoARMode_None)) || // We're in control of the size
+ !getService<IMFVideoMixerControl>(m_filter, MR_VIDEO_MIXER_SERVICE, IID_IMFVideoMixerControl) ||
+ !getService<IMFVideoProcessor>(m_filter, MR_VIDEO_MIXER_SERVICE, IID_IMFVideoProcessor)) {
+ m_filter = Filter(); //will release the interface
+ }
+ }
+
+ 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