CARingBuffer::Error CARingBuffer::store(const AudioBufferList* list, size_t framesToWrite, uint64_t startFrame)
{
if (!framesToWrite)
return Ok;
if (framesToWrite > m_frameCount)
return TooMuch;
uint64_t endFrame = startFrame + framesToWrite;
if (startFrame < currentEndFrame()) {
// Throw everything out when going backwards.
setCurrentFrameBounds(startFrame, startFrame);
} else if (endFrame - currentStartFrame() <= m_frameCount) {
// The buffer has not yet wrapped and will not need to.
// No-op.
} else {
// Advance the start time past the region we are about to overwrite
// starting one buffer of time behind where we're writing.
uint64_t newStartFrame = endFrame - m_frameCount;
uint64_t newEndFrame = std::max(newStartFrame, currentEndFrame());
setCurrentFrameBounds(newStartFrame, newEndFrame);
}
// Write the new frames.
Byte** buffers = static_cast<Byte**>(m_buffers->data());
size_t offset0;
size_t offset1;
uint64_t curEnd = currentEndFrame();
if (startFrame > curEnd) {
// We are skipping some samples, so zero the range we are skipping.
offset0 = frameOffset(curEnd);
offset1 = frameOffset(startFrame);
if (offset0 < offset1)
ZeroRange(buffers, m_channelCount, offset0, offset1 - offset0);
else {
ZeroRange(buffers, m_channelCount, offset0, m_capacityBytes - offset0);
ZeroRange(buffers, m_channelCount, 0, offset1);
}
offset0 = offset1;
} else
offset0 = frameOffset(startFrame);
offset1 = frameOffset(endFrame);
if (offset0 < offset1)
StoreABL(buffers, offset0, list, 0, offset1 - offset0);
else {
size_t nbytes = m_capacityBytes - offset0;
StoreABL(buffers, offset0, list, 0, nbytes);
StoreABL(buffers, 0, list, nbytes, offset1);
}
// Now update the end time.
setCurrentFrameBounds(currentStartFrame(), endFrame);
return Ok;
}
CARingBuffer::Error CARingBuffer::fetch(AudioBufferList* list, size_t nFrames, uint64_t startRead)
{
if (!nFrames)
return Ok;
startRead = std::max<uint64_t>(0, startRead);
uint64_t endRead = startRead + nFrames;
uint64_t startRead0 = startRead;
uint64_t endRead0 = endRead;
clipTimeBounds(startRead, endRead);
if (startRead == endRead) {
ZeroABL(list, 0, nFrames * m_bytesPerFrame);
return Ok;
}
size_t byteSize = static_cast<size_t>((endRead - startRead) * m_bytesPerFrame);
size_t destStartByteOffset = static_cast<size_t>(std::max<uint64_t>(0, (startRead - startRead0) * m_bytesPerFrame));
if (destStartByteOffset > 0)
ZeroABL(list, 0, std::min<size_t>(nFrames * m_bytesPerFrame, destStartByteOffset));
size_t destEndSize = static_cast<size_t>(std::max<uint64_t>(0, endRead0 - endRead));
if (destEndSize > 0)
ZeroABL(list, destStartByteOffset + byteSize, destEndSize * m_bytesPerFrame);
Byte **buffers = static_cast<Byte**>(m_buffers->data());
size_t offset0 = frameOffset(startRead);
size_t offset1 = frameOffset(endRead);
size_t nbytes;
if (offset0 < offset1) {
nbytes = offset1 - offset0;
FetchABL(list, destStartByteOffset, buffers, offset0, nbytes);
} else {
nbytes = m_capacityBytes - offset0;
FetchABL(list, destStartByteOffset, buffers, offset0, nbytes);
FetchABL(list, destStartByteOffset + nbytes, buffers, 0, offset1);
nbytes += offset1;
}
int channelCount = list->mNumberBuffers;
AudioBuffer* dest = list->mBuffers;
while (--channelCount >= 0) {
dest->mDataByteSize = nbytes;
dest++;
}
return Ok;
}
Vector<IntRect> FindController::rectsForTextMatches()
{
Vector<IntRect> rects;
for (Frame* frame = &m_webPage->corePage()->mainFrame(); frame; frame = frame->tree().traverseNext()) {
Document* document = frame->document();
if (!document)
continue;
IntRect visibleRect = frame->view()->visibleContentRect();
Vector<IntRect> frameRects = document->markers().renderedRectsForMarkers(DocumentMarker::TextMatch);
IntPoint frameOffset(-frame->view()->documentScrollOffsetRelativeToViewOrigin().width(), -frame->view()->documentScrollOffsetRelativeToViewOrigin().height());
frameOffset = frame->view()->convertToContainingWindow(frameOffset);
for (Vector<IntRect>::iterator it = frameRects.begin(), end = frameRects.end(); it != end; ++it) {
it->intersect(visibleRect);
if (it->isEmpty())
continue;
it->moveBy(frameOffset);
rects.append(*it);
}
}
return rects;
}
void QWindowsBackingStore::flush(QWindow *window, const QRegion ®ion,
const QPoint &offset)
{
Q_ASSERT(window);
const QRect br = region.boundingRect();
if (QWindowsContext::verbose > 1)
qCDebug(lcQpaBackingStore) << __FUNCTION__ << this << window << offset << br;
QWindowsWindow *rw = QWindowsWindow::baseWindowOf(window);
#ifndef Q_OS_WINCE
const bool hasAlpha = rw->format().hasAlpha();
const Qt::WindowFlags flags = window->flags();
if ((flags & Qt::FramelessWindowHint) && QWindowsWindow::setWindowLayered(rw->handle(), flags, hasAlpha, rw->opacity()) && hasAlpha) {
// Windows with alpha: Use blend function to update.
QRect r = window->frameGeometry();
QPoint frameOffset(window->frameMargins().left(), window->frameMargins().top());
QRect dirtyRect = br.translated(offset + frameOffset);
SIZE size = {r.width(), r.height()};
POINT ptDst = {r.x(), r.y()};
POINT ptSrc = {0, 0};
BLENDFUNCTION blend = {AC_SRC_OVER, 0, (BYTE)(255.0 * rw->opacity()), AC_SRC_ALPHA};
if (QWindowsContext::user32dll.updateLayeredWindowIndirect) {
RECT dirty = {dirtyRect.x(), dirtyRect.y(),
dirtyRect.x() + dirtyRect.width(), dirtyRect.y() + dirtyRect.height()};
UPDATELAYEREDWINDOWINFO info = {sizeof(info), NULL, &ptDst, &size, m_image->hdc(), &ptSrc, 0, &blend, ULW_ALPHA, &dirty};
QWindowsContext::user32dll.updateLayeredWindowIndirect(rw->handle(), &info);
} else {
QWindowsContext::user32dll.updateLayeredWindow(rw->handle(), NULL, &ptDst, &size, m_image->hdc(), &ptSrc, 0, &blend, ULW_ALPHA);
}
} else {
#endif
const HDC dc = rw->getDC();
if (!dc) {
qErrnoWarning("%s: GetDC failed", __FUNCTION__);
return;
}
if (!BitBlt(dc, br.x(), br.y(), br.width(), br.height(),
m_image->hdc(), br.x() + offset.x(), br.y() + offset.y(), SRCCOPY)) {
const DWORD lastError = GetLastError(); // QTBUG-35926, QTBUG-29716: may fail after lock screen.
if (lastError != ERROR_SUCCESS && lastError != ERROR_INVALID_HANDLE)
qErrnoWarning(lastError, "%s: BitBlt failed", __FUNCTION__);
}
rw->releaseDC();
#ifndef Q_OS_WINCE
}
#endif
// Write image for debug purposes.
if (QWindowsContext::verbose > 2 && lcQpaBackingStore().isDebugEnabled()) {
static int n = 0;
const QString fileName = QString::fromLatin1("win%1_%2.png").
arg(rw->winId()).arg(n++);
m_image->image().save(fileName);
qCDebug(lcQpaBackingStore) << "Wrote " << m_image->image().size() << fileName;
}
}
void QWindowsBackingStore::flush(QWindow *window, const QRegion ®ion,
const QPoint &offset)
{
Q_ASSERT(window);
const QRect br = region.boundingRect();
if (QWindowsContext::verboseBackingStore > 1)
qDebug() << __FUNCTION__ << window << offset << br;
QWindowsWindow *rw = QWindowsWindow::baseWindowOf(window);
#ifndef Q_OS_WINCE
if (rw->format().hasAlpha() && (window->flags() & Qt::FramelessWindowHint)) {
const long wl = GetWindowLong(rw->handle(), GWL_EXSTYLE);
if ((wl & WS_EX_LAYERED) == 0)
SetWindowLong(rw->handle(), GWL_EXSTYLE, wl | WS_EX_LAYERED);
QRect r = window->frameGeometry();
QPoint frameOffset(window->frameMargins().left(), window->frameMargins().top());
QRect dirtyRect = br.translated(offset + frameOffset);
SIZE size = {r.width(), r.height()};
POINT ptDst = {r.x(), r.y()};
POINT ptSrc = {0, 0};
BLENDFUNCTION blend = {AC_SRC_OVER, 0, (BYTE)(255.0 * rw->opacity()), AC_SRC_ALPHA};
RECT dirty = {dirtyRect.x(), dirtyRect.y(),
dirtyRect.x() + dirtyRect.width(), dirtyRect.y() + dirtyRect.height()};
UPDATELAYEREDWINDOWINFO info = {sizeof(info), NULL, &ptDst, &size, m_image->hdc(), &ptSrc, 0, &blend, ULW_ALPHA, &dirty};
QWindowsContext::user32dll.updateLayeredWindowIndirect(rw->handle(), &info);
} else {
#endif
const HDC dc = rw->getDC();
if (!dc) {
qErrnoWarning("%s: GetDC failed", __FUNCTION__);
return;
}
if (!BitBlt(dc, br.x(), br.y(), br.width(), br.height(),
m_image->hdc(), br.x() + offset.x(), br.y() + offset.y(), SRCCOPY))
qErrnoWarning("%s: BitBlt failed", __FUNCTION__);
rw->releaseDC();
#ifndef Q_OS_WINCE
}
#endif
// Write image for debug purposes.
if (QWindowsContext::verboseBackingStore > 2) {
static int n = 0;
const QString fileName = QString::fromLatin1("win%1_%2.png").
arg(rw->winId()).arg(n++);
m_image->image().save(fileName);
qDebug() << "Wrote " << m_image->image().size() << fileName;
}
}
setupDataSize(0), // Size of xml setup block
versionNum(0), // Version number
cropRowLow(0), // The crop row value on the bottom
cropRowHigh(0), // The crop row value in the top
cropColHigh(0), // The crop value on the far right
cropColLow(0), // The crop value on the far left
metaData(0), // Offset of meta data block
setupData(0), // Offset of xml setup block
imageInfo(0), // Offset of image info structure
imageSeq(0), // Offset for image sequence
width(0), // The width of the frame in pixels
height(0), // The height of the frame in pixels
frameNum(0), // The Number of frames.
frameSize(0), // Size of an image in...
frameSizeArray(), // Size of all 180 frames
frameOffset() // Offset of all 180 frames
{
FILE* fp;
size_t fb;
fileName = fileNameParam;
/*
* Opening the file
*/
fp = fopen(fileName.c_str(), "r");
/*
* Going to begining of the file
*/
