Refactored Project Structure for use with emulator

emulator/qt/mainwindow.cpp

@@ -0,0 +1,50 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include <QDebug>
+#include <QPainter>
+#include <math.h>
+
+QColor colorFromRGB565(uint16_t color) {
+    int R8 = (int) floor( (color>>(5+6)) * 255.0 / 31.0 + 0.5);
+    int G8 = (int) floor( ((color>>5)&0x2F) * 255.0 / 63.0 + 0.5);
+    int B8 = (int) floor( (color&0x1F) * 255.0 / 31.0 + 0.5);
+    return QColor::fromRgb(R8,G8,B8);
+
+}
+
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    pixmap(320,240),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+}
+
+void MainWindow::draw_line(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, uint16_t color)
+{
+
+    render_mutex.lock();
+    QPainter painter(&(pixmap));
+    painter.setPen(colorFromRGB565(color));
+    painter.drawLine(x1,y1,x2,y2);
+    render_mutex.unlock();
+}
+
+void MainWindow::paintEvent(QPaintEvent *)
+{
+  render_mutex.lock();
+  QPainter painter(this);
+
+  painter.drawPixmap(100,100,pixmap);
+  painter.setPen(Qt::green);
+  painter.drawRect(100-1,100-1,320+2,240+2);
+  render_mutex.unlock();
+}
+
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}