Revert "mapsd: release MapRenderer on exit (#28988)"

This reverts commit 97db3f84daffd9e2c6fdf6e65325f42c118aacb8.

old-commit-hash: 9cec7fa1a8

selfdrive/navd/main.cc

@@ -14,6 +14,8 @@ int main(int argc, char *argv[]) {
   std::signal(SIGINT, sigTermHandler);
   std::signal(SIGTERM, sigTermHandler);
 
-  MapRenderer m(get_mapbox_settings());
+  MapRenderer * m = new MapRenderer(get_mapbox_settings());
+  assert(m);
+
   return app.exec();
 }

selfdrive/navd/map_renderer.cc

@@ -53,7 +53,8 @@ MapRenderer::MapRenderer(const QMapboxGLSettings &settings, bool online) : m_set
   ctx->makeCurrent(surface.get());
   assert(QOpenGLContext::currentContext() == ctx.get());
 
-  ctx->functions()->initializeOpenGLFunctions();
+  gl_functions.reset(ctx->functions());
+  gl_functions->initializeOpenGLFunctions();
 
   QOpenGLFramebufferObjectFormat fbo_format;
   fbo.reset(new QOpenGLFramebufferObject(WIDTH, HEIGHT, fbo_format));
@@ -66,7 +67,7 @@ MapRenderer::MapRenderer(const QMapboxGLSettings &settings, bool online) : m_set
 
   m_map->resize(fbo->size());
   m_map->setFramebufferObject(fbo->handle(), fbo->size());
-  ctx->functions()->glViewport(0, 0, WIDTH, HEIGHT);
+  gl_functions->glViewport(0, 0, WIDTH, HEIGHT);
 
   QObject::connect(m_map.data(), &QMapboxGL::mapChanged, [=](QMapboxGL::MapChange change) {
     // https://github.com/mapbox/mapbox-gl-native/blob/cf734a2fec960025350d8de0d01ad38aeae155a0/platform/qt/include/qmapboxgl.hpp#L116
@@ -156,9 +157,9 @@ bool MapRenderer::loaded() {
 
 void MapRenderer::update() {
   double start_t = millis_since_boot();
-  ctx->functions()->glClear(GL_COLOR_BUFFER_BIT);
+  gl_functions->glClear(GL_COLOR_BUFFER_BIT);
   m_map->render();
-  ctx->functions()->glFlush();
+  gl_functions->glFlush();
   double end_t = millis_since_boot();
 
   if ((vipc_server != nullptr) && loaded()) {

selfdrive/navd/map_renderer.h

@@ -28,6 +28,7 @@ public:
 private:
   std::unique_ptr<QOpenGLContext> ctx;
   std::unique_ptr<QOffscreenSurface> surface;
+  std::unique_ptr<QOpenGLFunctions> gl_functions;
   std::unique_ptr<QOpenGLFramebufferObject> fbo;
 
   std::unique_ptr<VisionIpcServer> vipc_server;