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QmlDesigner.NodeInstances: Improve shared memory for pixmap container

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Change-Id: I69e815d9f08404931823d9ae5abd0919bd4206b3
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@nokia.com>
This commit is contained in:
Marco Bubke
2012-09-05 19:55:06 +02:00
parent af0fbc2215
commit 505c90dbf7
1 changed files with 6 additions and 2 deletions
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share/qtcreator/qml/qmlpuppet/container/imagecontainer.cpp
+6 -2
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@@ -62,7 +62,7 @@ static QSharedMemory *createSharedMemory(qint32 key, int byteCount)
{
QSharedMemory *sharedMemory = globalSharedMemoryCache.take(key);
if (sharedMemory == 0)
sharedMemory = new QSharedMemory(QString::number(key));
sharedMemory = new QSharedMemory(QString("Image-%1").arg(key));
if (sharedMemory->isAttached())
sharedMemory->detach();
@@ -94,7 +94,9 @@ QDataStream &operator<<(QDataStream &out, const ImageContainer &container)
out << qint32(sharedMemory != 0); // send if shared memory is used
if (sharedMemory) {
sharedMemory->lock();
qMemCopy(sharedMemory->data(), image.constBits(), image.byteCount());
sharedMemory->unlock();
} else {
out.writeRawData(reinterpret_cast<const char*>(image.constBits()), image.byteCount());
}
@@ -105,11 +107,13 @@ QDataStream &operator<<(QDataStream &out, const ImageContainer &container)
void readSharedMemory(qint32 key, QImage *image, qint32 byteSize)
{
QSharedMemory sharedMemory(QString::number(key));
QSharedMemory sharedMemory(QString("Image-%1").arg(key));
bool canAttach = sharedMemory.attach(QSharedMemory::ReadOnly);
if (canAttach)
{
sharedMemory.lock();
qMemCopy(image->bits(), sharedMemory.constData(), byteSize);
sharedMemory.unlock();
}
}