qt: create opengl context on hardware renderer

Prevent OpenGLES renderer crashing on windows

src/qt/qt_hardwarerenderer.cpp

@@ -14,6 +14,7 @@ void HardwareRenderer::resizeGL(int w, int h)
 
 void HardwareRenderer::initializeGL()
 {
+    m_context->makeCurrent(this);
     initializeOpenGLFunctions();
 }
 
@@ -44,6 +45,7 @@ void HardwareRenderer::onBlit(const std::unique_ptr<uint8_t>* img, int x, int y,
 
 void HardwareRenderer::resizeEvent(QResizeEvent *event) {
     onResize(width(), height());
+    
     QOpenGLWindow::resizeEvent(event);
 }
 

src/qt/qt_hardwarerenderer.hpp

@@ -24,6 +24,7 @@ class HardwareRenderer : public QOpenGLWindow, protected QOpenGLFunctions, publi
 private:
     bool wayland = false;
     QWidget* parentWidget{nullptr};
+    QOpenGLContext* m_context;
 public:
     void resizeGL(int w, int h) override;
     void initializeGL() override;
@@ -34,6 +35,9 @@ public:
         setMinimumSize(QSize(16, 16));
         setFlags(Qt::FramelessWindowHint);
         parentWidget = parent;
+
+        m_context = new QOpenGLContext();
+        m_context->create();
     }
     ~HardwareRenderer()
     {