| /**************************************************************************** |
| ** |
| ** Copyright (C) 2017 The Qt Company Ltd. |
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| ** |
| ** This file is part of the plugins of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
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| ****************************************************************************/ |
| |
| #include "qintegrityfbscreen.h" |
| #include <QtFbSupport/private/qfbcursor_p.h> |
| #include <QtFbSupport/private/qfbwindow_p.h> |
| #include <QtCore/QRegularExpression> |
| #include <QtGui/QPainter> |
| |
| #include <qimage.h> |
| #include <qdebug.h> |
| |
| #include <INTEGRITY.h> |
| #include <memory_region.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| static QImage::Format determineFormat(const FBInfo *fbinfo) |
| { |
| QImage::Format format = QImage::Format_Invalid; |
| |
| switch (fbinfo->BitsPerPixel) { |
| case 32: |
| if (fbinfo->Alpha.Bits) |
| format = QImage::Format_ARGB32; |
| else |
| format = QImage::Format_RGB32; |
| break; |
| case 24: |
| format = QImage::Format_RGB888; |
| break; |
| case 18: |
| format = QImage::Format_RGB666; |
| break; |
| case 16: |
| format = QImage::Format_RGB16; |
| break; |
| case 15: |
| format = QImage::Format_RGB555; |
| break; |
| case 12: |
| format = QImage::Format_RGB444; |
| break; |
| case 8: |
| break; |
| case 1: |
| format = QImage::Format_Mono; //###: LSB??? |
| break; |
| default: |
| break; |
| } |
| |
| return format; |
| } |
| |
| QIntegrityFbScreen::QIntegrityFbScreen(const QStringList &args) |
| : mArgs(args), mBlitter(0) |
| { |
| } |
| |
| QIntegrityFbScreen::~QIntegrityFbScreen() |
| { |
| if (mFbh) { |
| MemoryRegion vmr; |
| CheckSuccess(gh_FB_close_munmap(mFbh, &vmr)); |
| CheckSuccess(DeallocateMemoryRegionWithCookie(__ghs_VirtualMemoryRegionPool, |
| vmr, mVMRCookie)); |
| } |
| |
| delete mBlitter; |
| } |
| |
| bool QIntegrityFbScreen::initialize() |
| { |
| Error err; |
| QRegularExpression fbRx(QLatin1String("fb=(.*)")); |
| QRegularExpression sizeRx(QLatin1String("size=(\\d+)x(\\d+)")); |
| QRegularExpression offsetRx(QLatin1String("offset=(\\d+)x(\\d+)")); |
| |
| QString fbDevice; |
| QRect userGeometry; |
| |
| // Parse arguments |
| foreach (const QString &arg, mArgs) { |
| QRegularExpressionMatch match; |
| if (arg.contains(sizeRx, &match)) |
| userGeometry.setSize(QSize(match.captured(1).toInt(), match.captured(2).toInt())); |
| else if (arg.contains(offsetRx, &match)) |
| userGeometry.setTopLeft(QPoint(match.captured(1).toInt(), match.captured(2).toInt())); |
| else if (arg.contains(fbRx, &match)) |
| fbDevice = match.captured(1); |
| } |
| |
| if (fbDevice.isEmpty()) { |
| /* no driver specified, try to get default one */ |
| err = gh_FB_get_driver_by_name(NULL, &mFbd); |
| if (err != Success) { |
| uintptr_t context = 0; |
| /* no default driver, take the first available one */ |
| err = gh_FB_get_next_driver(&context, &mFbd); |
| } |
| } else { |
| err = gh_FB_get_driver_by_name(qPrintable(fbDevice), &mFbd); |
| } |
| if (err != Success) { |
| qErrnoWarning("Failed to open framebuffer %s: %d", qPrintable(fbDevice), err); |
| return false; |
| } |
| |
| memset(&mFbinfo, 0, sizeof(FBInfo)); |
| CheckSuccess(gh_FB_check_info(mFbd, &mFbinfo)); |
| if (userGeometry.width() && userGeometry.height()) { |
| mFbinfo.Width = userGeometry.width(); |
| mFbinfo.Height = userGeometry.height(); |
| err = gh_FB_check_info(mFbd, &mFbinfo); |
| if (err != Success) { |
| qErrnoWarning("Unsupported resolution %dx%d for %s: %d", |
| userGeometry.width(), userGeometry.height(), |
| qPrintable(fbDevice), err); |
| return false; |
| } |
| } |
| |
| if (mFbinfo.MMapSize) { |
| err = AllocateAnyMemoryRegionWithCookie(__ghs_VirtualMemoryRegionPool, |
| mFbinfo.MMapSize, &mVMR, &mVMRCookie); |
| if (err != Success) { |
| qErrnoWarning("Could not mmap: %d", err); |
| return false; |
| } |
| |
| err = gh_FB_open_mmap(mFbd, &mFbinfo, mVMR, &mFbh); |
| } else { |
| err = gh_FB_open(mFbd, &mFbinfo, &mFbh); |
| } |
| if (err != Success) { |
| qErrnoWarning("Could not open framebuffer: %d", err); |
| return false; |
| } |
| |
| CheckSuccess(gh_FB_get_info(mFbh, &mFbinfo)); |
| |
| mDepth = mFbinfo.BitsPerPixel; |
| mGeometry = QRect(0, 0, mFbinfo.Width, mFbinfo.Height); |
| mFormat = determineFormat(&mFbinfo); |
| |
| const int dpi = 100; |
| int mmWidth = qRound((mFbinfo.Width * 25.4) / dpi); |
| int mmHeight = qRound((mFbinfo.Height * 25.4) / dpi); |
| mPhysicalSize = QSizeF(mmWidth, mmHeight); |
| |
| QFbScreen::initializeCompositor(); |
| mFbScreenImage = QImage((uchar *)mFbinfo.Start, mFbinfo.Width, mFbinfo.Height, |
| mFbinfo.BytesPerLine, mFormat); |
| |
| mCursor = new QFbCursor(this); |
| |
| return true; |
| } |
| |
| QRegion QIntegrityFbScreen::doRedraw() |
| { |
| QRegion touched = QFbScreen::doRedraw(); |
| |
| if (touched.isEmpty()) |
| return touched; |
| |
| if (!mBlitter) |
| mBlitter = new QPainter(&mFbScreenImage); |
| |
| for (QRect rect : touched) { |
| FBRect fbrect = { |
| (uint32_t)rect.left(), |
| (uint32_t)rect.top(), |
| (uint32_t)rect.width(), |
| (uint32_t)rect.height() |
| }; |
| mBlitter->drawImage(rect, mScreenImage, rect); |
| gh_FB_expose(mFbh, &fbrect, NULL); |
| } |
| return touched; |
| } |
| |
| // grabWindow() grabs "from the screen" not from the backingstores. |
| // In integrityfb's case it will also include the mouse cursor. |
| QPixmap QIntegrityFbScreen::grabWindow(WId wid, int x, int y, int width, int height) const |
| { |
| if (!wid) { |
| if (width < 0) |
| width = mFbScreenImage.width() - x; |
| if (height < 0) |
| height = mFbScreenImage.height() - y; |
| return QPixmap::fromImage(mFbScreenImage).copy(x, y, width, height); |
| } |
| |
| QFbWindow *window = windowForId(wid); |
| if (window) { |
| const QRect geom = window->geometry(); |
| if (width < 0) |
| width = geom.width() - x; |
| if (height < 0) |
| height = geom.height() - y; |
| QRect rect(geom.topLeft() + QPoint(x, y), QSize(width, height)); |
| rect &= window->geometry(); |
| return QPixmap::fromImage(mFbScreenImage).copy(rect); |
| } |
| |
| return QPixmap(); |
| } |
| |
| QT_END_NAMESPACE |
| |