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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<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
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