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A quick fix to make frames with less than 8 data bytes not show

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garbage after their valid bytes
This commit is contained in:
Collin Kidder
2021-12-29 21:08:25 -05:00
parent ac206dbc61
commit a8f4a51131
1 changed files with 17 additions and 10 deletions
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re/flowviewwindow.cpp
+15 -8
View File
@@ -336,7 +336,9 @@ void FlowViewWindow::gotCenterTimeID(int32_t ID, double timestamp)
memcpy(refBytes, currBytes, 8); memcpy(refBytes, currBytes, 8);
} }
memcpy(currBytes, frameCache.at(currentPosition).payload().data(), 8); memset(currBytes, 0, 8); //first zero out all 8 bytes
memcpy(currBytes, frameCache.at(currentPosition).payload().data(), frameCache.at(currentPosition).payload().length());
updateDataView(); updateDataView();
} }
@@ -516,7 +518,8 @@ void FlowViewWindow::updatedFrames(int numFrames)
if (ui->cbLiveMode->checkState() == Qt::Checked) if (ui->cbLiveMode->checkState() == Qt::Checked)
{ {
currentPosition = frameCache.count() - 1; currentPosition = frameCache.count() - 1;
memcpy(currBytes, frameCache.at(currentPosition).payload(), 8); memset(currBytes, 0, 8);
memcpy(currBytes, frameCache.at(currentPosition).payload().data(), frameCache.at(currentPosition).payload().length());
memcpy(refBytes, currBytes, 8); memcpy(refBytes, currBytes, 8);
} }
@@ -563,8 +566,10 @@ void FlowViewWindow::createGraph(int byteNum)
{ {
frame = &frameCache[j]; frame = &frameCache[j];
data = reinterpret_cast<const unsigned char *>(frame->payload().constData()); data = reinterpret_cast<const unsigned char *>(frame->payload().constData());
if (byteNum < frameCache[j].payload().length())
tempVal = data[byteNum]; tempVal = data[byteNum];
else
tempVal = 0;
if (graphByTime) if (graphByTime)
{ {
@@ -652,7 +657,8 @@ void FlowViewWindow::changeID(QString newID)
updateGraphLocation(); updateGraphLocation();
memcpy(currBytes, frameCache.at(currentPosition).payload().constData(), 8); memset(currBytes, 0, 8);
memcpy(currBytes, frameCache.at(currentPosition).payload().constData(), frameCache.at(currentPosition).payload().length());
memcpy(refBytes, currBytes, 8); memcpy(refBytes, currBytes, 8);
updateDataView(); updateDataView();
@@ -699,8 +705,8 @@ void FlowViewWindow::btnStopClick()
playbackActive = false; playbackActive = false;
currentPosition = 0; currentPosition = 0;
memset(currBytes, 0, 8);
memcpy(currBytes, frameCache.at(currentPosition).payload().constData(), 8); memcpy(currBytes, frameCache.at(currentPosition).payload().constData(), frameCache.at(currentPosition).payload().length());
memcpy(refBytes, currBytes, 8); memcpy(refBytes, currBytes, 8);
updateFrameLabel(); updateFrameLabel();
@@ -832,7 +838,7 @@ void FlowViewWindow::updatePosition(bool forward)
//get through that then they're changed and a trigger so we stop playback at this frame. //get through that then they're changed and a trigger so we stop playback at this frame.
uint64_t changedBits = 0; uint64_t changedBits = 0;
uint8_t cngByte; uint8_t cngByte;
for (int i = 0; i < 8; i++) for (int i = 0; i < frameCache.at(currentPosition).payload().length(); i++)
{ {
unsigned char thisByte = static_cast<unsigned char>(frameCache.at(currentPosition).payload().data()[i]); unsigned char thisByte = static_cast<unsigned char>(frameCache.at(currentPosition).payload().data()[i]);
cngByte = currBytes[i] ^ thisByte; cngByte = currBytes[i] ^ thisByte;
@@ -849,7 +855,8 @@ void FlowViewWindow::updatePosition(bool forward)
playbackTimer->stop(); playbackTimer->stop();
} }
memcpy(currBytes, frameCache.at(currentPosition).payload().constData(), 8); memset(currBytes, 0, 8);
memcpy(currBytes, frameCache.at(currentPosition).payload().constData(), frameCache.at(currentPosition).payload().length());
if (ui->cbSync->checkState() == Qt::Checked) emit sendCenterTimeID(frameCache[currentPosition].frameId(), frameCache[currentPosition].timeStamp().microSeconds() / 1000000.0); if (ui->cbSync->checkState() == Qt::Checked) emit sendCenterTimeID(frameCache[currentPosition].frameId(), frameCache[currentPosition].timeStamp().microSeconds() / 1000000.0);
ui->timelineSlider->setValue(currentPosition); ui->timelineSlider->setValue(currentPosition);