1 files changed, 165 insertions, 0 deletions
diff --git a/src/plugins/platforms/blackberry/qbbbuffer.cpp b/src/plugins/platforms/blackberry/qbbbuffer.cpp
new file mode 100644
index 0000000000..c4ac04898d
--- /dev/null
+++ b/src/plugins/platforms/blackberry/qbbbuffer.cpp
@@ -0,0 +1,165 @@
+/***************************************************************************
+**
+** Copyright (C) 2011 - 2012 Research In Motion
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the plugins of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qbbbuffer.h"
+
+#include <QtCore/QDebug>
+
+#include <errno.h>
+#include <sys/mman.h>
+
+QT_BEGIN_NAMESPACE
+
+QBBBuffer::QBBBuffer()
+    : m_buffer(0)
+{
+#if defined(QBBBUFFER_DEBUG)
+    qDebug() << "QBBBuffer::QBBBuffer - empty";
+#endif
+}
+
+QBBBuffer::QBBBuffer(screen_buffer_t buffer)
+    : m_buffer(buffer)
+{
+#if defined(QBBBUFFER_DEBUG)
+    qDebug() << "QBBBuffer::QBBBuffer - normal";
+#endif
+
+    // Get size of buffer
+    errno = 0;
+    int size[2];
+    int result = screen_get_buffer_property_iv(buffer, SCREEN_PROPERTY_BUFFER_SIZE, size);
+    if (result != 0) {
+        qFatal("QBB: failed to query buffer size, errno=%d", errno);
+    }
+
+    // Get stride of buffer
+    errno = 0;
+    int stride;
+    result = screen_get_buffer_property_iv(buffer, SCREEN_PROPERTY_STRIDE, &stride);
+    if (result != 0) {
+        qFatal("QBB: failed to query buffer stride, errno=%d", errno);
+    }
+
+    // Get access to buffer's data
+    errno = 0;
+    uchar *dataPtr = 0;
+    result = screen_get_buffer_property_pv(buffer, SCREEN_PROPERTY_POINTER, (void **)&dataPtr);
+    if (result != 0) {
+        qFatal("QBB: failed to query buffer pointer, errno=%d", errno);
+    }
+    if (dataPtr == NULL) {
+        qFatal("QBB: buffer pointer is NULL, errno=%d", errno);
+    }
+
+    // Get format of buffer
+    errno = 0;
+    int screenFormat;
+    result = screen_get_buffer_property_iv(buffer, SCREEN_PROPERTY_FORMAT, &screenFormat);
+    if (result != 0) {
+        qFatal("QBB: failed to query buffer format, errno=%d", errno);
+    }
+
+    // Convert screen format to QImage format
+    QImage::Format imageFormat = QImage::Format_Invalid;
+    switch (screenFormat) {
+    case SCREEN_FORMAT_RGBX4444:
+        imageFormat = QImage::Format_RGB444;
+        break;
+    case SCREEN_FORMAT_RGBA4444:
+        imageFormat = QImage::Format_ARGB4444_Premultiplied;
+        break;
+    case SCREEN_FORMAT_RGBX5551:
+        imageFormat = QImage::Format_RGB555;
+        break;
+    case SCREEN_FORMAT_RGB565:
+        imageFormat = QImage::Format_RGB16;
+        break;
+    case SCREEN_FORMAT_RGBX8888:
+        imageFormat = QImage::Format_RGB32;
+        break;
+    case SCREEN_FORMAT_RGBA8888:
+        imageFormat = QImage::Format_ARGB32_Premultiplied;
+        break;
+    default:
+        qFatal("QBB: unsupported buffer format, format=%d", screenFormat);
+    }
+
+    // wrap buffer in an image
+    m_image = QImage(dataPtr, size[0], size[1], stride, imageFormat);
+}
+
+QBBBuffer::QBBBuffer(const QBBBuffer &other)
+    : m_buffer(other.m_buffer),
+      m_image(other.m_image)
+{
+#if defined(QBBBUFFER_DEBUG)
+    qDebug() << "QBBBuffer::QBBBuffer - copy";
+#endif
+}
+
+QBBBuffer::~QBBBuffer()
+{
+#if defined(QBBBUFFER_DEBUG)
+    qDebug() << "QBBBuffer::~QBBBuffer";
+#endif
+}
+
+void QBBBuffer::invalidateInCache()
+{
+#if defined(QBBBUFFER_DEBUG)
+    qDebug() << "QBBBuffer::invalidateInCache";
+#endif
+
+    // Verify native buffer exists
+    if (m_buffer == 0) {
+        qFatal("QBB: can't invalidate cache for null buffer");
+    }
+
+    // Evict buffer's data from cache
+    errno = 0;
+    int result = msync(m_image.bits(), m_image.height() * m_image.bytesPerLine(), MS_INVALIDATE | MS_CACHE_ONLY);
+    if (result != 0) {
+        qFatal("QBB: failed to invalidate cache, errno=%d", errno);
+    }
+}
+
+QT_END_NAMESPACE