1 files changed, 243 insertions, 0 deletions
diff --git a/src/plugins/platforms/integrity/qintegrityfbscreen.cpp b/src/plugins/platforms/integrity/qintegrityfbscreen.cpp
new file mode 100644
index 0000000000..e043da7786
--- /dev/null
+++ b/src/plugins/platforms/integrity/qintegrityfbscreen.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qintegrityfbscreen.h"
+#include <QtPlatformSupport/private/qfbcursor_p.h>
+#include <QtPlatformSupport/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);
+
+    QVector<QRect> rects = touched.rects();
+    for (int i = 0; i < rects.size(); i++) {
+        FBRect fbrect = {
+            (uint32_t)rects[i].left(),
+            (uint32_t)rects[i].top(),
+            (uint32_t)rects[i].width(),
+            (uint32_t)rects[i].height()
+        };
+        mBlitter->drawImage(rects[i], *mScreenImage, rects[i]);
+        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
+