TEST(overlay): adds build files for OverlayTest

adds a test application that connects to MumbleOverlayPipe and displays the overlay as configured

src/tests/CMakeLists.txt

@@ -20,6 +20,7 @@ if(client)
  # For some reason Qt segfaults when executing this test on FreeBSD without a display (even when using the offscreen plugin)
  use_test("TestSettingsJSONSerialization")
  endif()
+ use_test("OverlayTest")
 endif()
 
 if(server)

src/tests/OverlayTest/CMakeLists.txt

@@ -0,0 +1,15 @@
+# Copyright 2020-2022 The Mumble Developers. All rights reserved.
+# Use of this source code is governed by a BSD-style license
+# that can be found in the LICENSE file at the root of the
+# Mumble source tree or at <https://www.mumble.info/LICENSE>.
+
+add_executable(OverlayTest OverlayTest.cpp)
+
+set_target_properties(OverlayTest PROPERTIES AUTOMOC ON)
+
+find_pkg(Qt5 COMPONENTS Gui Widgets REQUIRED)
+
+target_link_libraries(OverlayTest PRIVATE mumble_client_object_lib)
+target_link_libraries(OverlayTest PRIVATE shared Qt5::Test Qt5::Widgets)
+
+add_test(NAME OverlayTest COMMAND $<TARGET_FILE:OverlayTest>)

src/tests/OverlayTest/OverlayTest.cpp

@@ -21,7 +21,10 @@
 #include <QtGui>
 #include <QtNetwork>
 
-#include <ctime>
+#include <QWidget>
+#include <QMainWindow>
+#include <QApplication>
+
 
 class OverlayWidget : public QWidget {
  Q_OBJECT
@@ -33,7 +36,7 @@ class OverlayWidget : public QWidget {
  SharedMemory2 *smMem;
  QTimer *qtTimer;
  QRect qrActive;
- QTime qtWall;
+ QElapsedTimer qtWall;
 
  unsigned int iFrameCount;
  int iLastFpsUpdate;
@@ -185,7 +188,6 @@ void OverlayWidget::error(QLocalSocket::LocalSocketError) {
 void OverlayWidget::update() {
  ++iFrameCount;
 
- clock_t t = clock();
  float elapsed = static_cast< float >(qtWall.elapsed() - iLastFpsUpdate) / 1000.0f;
 
  if (elapsed > OVERLAY_FPS_INTERVAL) {
@@ -216,12 +218,12 @@ void OverlayWidget::readyRead() {
  int ready = qlsSocket->bytesAvailable();
 
  if (om.omh.iLength == -1) {
- if (ready < sizeof(OverlayMsgHeader))
+ if ((size_t)ready < sizeof(OverlayMsgHeader))
  break;
  else {
  qlsSocket->read(reinterpret_cast< char * >(om.headerbuffer), sizeof(OverlayMsgHeader));
  if ((om.omh.uiMagic != OVERLAY_MAGIC_NUMBER) || (om.omh.iLength < 0)
- || (om.omh.iLength > sizeof(OverlayMsgShmem))) {
+ || ((size_t)om.omh.iLength > sizeof(OverlayMsgShmem))) {
  detach();
  return;
  }
@@ -264,11 +266,12 @@ void OverlayWidget::readyRead() {
  if (!smMem)
  break;
 
- if (((omb->x + omb->w) > img.width()) || ((omb->y + omb->h) > img.height()))
+ if (((omb->x + omb->w) > (unsigned int)img.width())
+ || ((omb->y + omb->h) > (unsigned int)img.height()))
  break;
 
 
- for (int y = 0; y < omb->h; ++y) {
+ for (unsigned int y = 0; y < omb->h; ++y) {
  unsigned char *src =
  reinterpret_cast< unsigned char * >(smMem->data()) + 4 * (width() * (y + omb->y) + omb->x);
  unsigned char *dst = img.scanLine(y + omb->y) + omb->x * 4;