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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 "utils.h"
#include <e32std.h>
QT_BEGIN_NAMESPACE
using namespace Phonon;
using namespace Phonon::MMF;
/*! \namespace MMF::Utils
\internal
*/
/*! \class MMF::TTraceContext
\internal
*/
/*! \class MMF::Utils
\internal
*/
_LIT(PanicCategory, "Phonon::MMF");
void MMF::Utils::panic(PanicCode code)
{
User::Panic(PanicCategory, code);
}
static const TInt KMimePrefixLength = 6; // either "audio/" or "video/"
_LIT(KMimePrefixAudio, "audio/");
_LIT(KMimePrefixVideo, "video/");
MMF::MediaType MMF::Utils::mimeTypeToMediaType(const TDesC& mimeType)
{
MediaType result = MediaTypeUnknown;
if (mimeType.Left(KMimePrefixLength).Compare(KMimePrefixAudio) == 0) {
result = MediaTypeAudio;
} else if (mimeType.Left(KMimePrefixLength).Compare(KMimePrefixVideo) == 0) {
result = MediaTypeVideo;
}
return result;
}
#ifdef _DEBUG
#include <hal.h>
#include <hal_data.h>
#include <gdi.h>
#include <eikenv.h>
struct TScreenInfo
{
int width;
int height;
int bpp;
const char* address;
int initialOffset;
int lineOffset;
TDisplayMode displayMode;
};
static void getScreenInfoL(TScreenInfo& info)
{
info.displayMode = CEikonEnv::Static()->ScreenDevice()->DisplayMode();
// Then we must set these as the input parameter
info.width = info.displayMode;
info.height = info.displayMode;
info.initialOffset = info.displayMode;
info.lineOffset = info.displayMode;
info.bpp = info.displayMode;
User::LeaveIfError( HAL::Get(HALData::EDisplayXPixels, info.width) );
User::LeaveIfError( HAL::Get(HALData::EDisplayYPixels, info.width) );
int address;
User::LeaveIfError( HAL::Get(HALData::EDisplayMemoryAddress, address) );
info.address = reinterpret_cast<const char*>(address);
User::LeaveIfError( HAL::Get(HALData::EDisplayOffsetToFirstPixel, info.initialOffset) );
User::LeaveIfError( HAL::Get(HALData::EDisplayOffsetBetweenLines, info.lineOffset) );
User::LeaveIfError( HAL::Get(HALData::EDisplayBitsPerPixel, info.bpp) );
}
QColor MMF::Utils::getScreenPixel(const QPoint& pos)
{
TScreenInfo info;
TRAPD(err, getScreenInfoL(info));
QColor pixel;
if(err == KErrNone and pos.x() < info.width and pos.y() < info.height)
{
const int bytesPerPixel = info.bpp / 8;
Q_ASSERT(bytesPerPixel >= 3);
const int stride = (info.width * bytesPerPixel) + info.lineOffset;
const char* ptr =
info.address
+ info.initialOffset
+ pos.y() * stride
+ pos.x() * bytesPerPixel;
// BGRA
pixel.setBlue(*ptr++);
pixel.setGreen(*ptr++);
pixel.setRed(*ptr++);
if(bytesPerPixel == 4)
pixel.setAlpha(*ptr++);
}
return pixel;
}
// Debugging: for debugging video visibility
void MMF::Utils::dumpScreenPixelSample()
{
for(int i=0; i<20; ++i) {
const QPoint pos(i*10, i*10);
const QColor pixel = Utils::getScreenPixel(pos);
RDebug::Printf(
"Phonon::MMF::Utils::dumpScreenPixelSample %d %d = %d %d %d %d",
pos.x(), pos.y(), pixel.red(), pixel.green(), pixel.blue(), pixel.alpha()
);
}
}
#endif // _DEBUG
QT_END_NAMESPACE
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