Fix data transmission to FPGA when file size is not exactly 16384 bytes

Fix input image display

clients/tde/src/part/fpgaview/part.cpp

@@ -1440,20 +1440,27 @@ void FPGAViewPart::updateDisplay() {
 								m_dataByteArray = file.readAll();
 							}
 							else {
-								// Show image in GUI
-								TQPixmap inputImagePixmap(m_dataInputImage);
-								m_base->ImageInputLabel->setPixmap(inputImagePixmap);
-								m_inputImageViewer->setPixmap(inputImagePixmap);
-								// Populate m_dataByteArray with image data
+								// Create grayscale input image buffer
+								TQImage displayImage = m_dataInputImage;
+
+								// Populate m_dataByteArray and displayImage with image data
 								int x;
 								int y;
+								unsigned char pixel_value;
 								int imageWidth = m_dataInputImage.width();
 								m_dataByteArray.resize(m_dataInputImage.height()*imageWidth);
 								for (y=0; y<m_dataInputImage.height(); y++) {
 									for (x=0; x<m_dataInputImage.width(); x++) {
-										m_dataByteArray[(y*imageWidth)+x] = tqGray(m_dataInputImage.pixel(x,y));
+										pixel_value = tqGray(m_dataInputImage.pixel(x,y));
+										m_dataByteArray[(y*imageWidth)+x] = pixel_value;
+										displayImage.setPixel(x, y, tqRgb(pixel_value, pixel_value, pixel_value));
 									}
 								}
+
+								// Show image in GUI
+								TQPixmap inputImagePixmap(displayImage);
+								m_base->ImageInputLabel->setPixmap(inputImagePixmap);
+								m_inputImageViewer->setPixmap(inputImagePixmap);
 							}
 
 							m_base->dataProcessingStatusLabel->setText(i18n("Transmitting data to FPGA") + "...");
@@ -1462,18 +1469,23 @@ void FPGAViewPart::updateDisplay() {
 							m_socket->writeBlock("M\r", 2);
 							m_socket->writeBufferedData();
 							int len = m_dataByteArray.size();
-							if (len >= 16384) {
-								len = 16384;
+							int txlen = 16384;
+							if (len >= txlen) {
+								len = txlen;
 							}
 							TQByteArray dataToSend(16384*2);
 							for (i=0; i<len; i++) {
 								dataToSend[(i*2)+0] = m_dataByteArray[i];
 								dataToSend[(i*2)+1] = '\r';
 							}
-							m_base->dataProcessingProgressBar->setTotalSteps(len*4);
+							for (; i<txlen; i++) {
+								dataToSend[(i*2)+0] = 0;
+								dataToSend[(i*2)+1] = '\r';
+							}
+							m_base->dataProcessingProgressBar->setTotalSteps(txlen*4);
 							m_base->dataProcessingProgressBar->setProgress(0);
 							int offset = 0;
-							while (offset < (len*2)) {
+							while (offset < (txlen*2)) {
 								m_socket->writeBlock(dataToSend.data()+offset, 1024);
 								m_socket->writeBufferedData();
 								offset = offset + 1024;