Render emulator output on main window

Introduce hardware renderer

src/qt/CMakeLists.txt

@@ -6,6 +6,11 @@ set(CMAKE_AUTORCC ON)
 
 find_package(Threads REQUIRED)
 
+set(UI_EXTRA_FILES)
+if (APPLE)
+    set(UI_EXTRA_FILES "macos_event_filter.mm")
+endif()
+
 add_library(plat STATIC qt.c qt_main.cpp qt_platform.cpp qt_midi.cpp cpp11_thread.cpp)
 add_library(ui STATIC
     qt_ui.cpp
@@ -18,6 +23,10 @@ add_library(ui STATIC
     qt_machinestatus.cpp
     qt_machinestatus.hpp
     qt_machinestatus.ui
+    qt_gleswidget.cpp
+    qt_gleswidget.hpp
+
+    ${UI_EXTRA_FILES}
 
     qt_settings.cpp
     qt_settings.hpp
@@ -89,3 +98,8 @@ target_link_libraries(
     Qt5::Widgets
     Threads::Threads
 )
+
+if (NOT APPLE)
+    find_package(X11 REQUIRED)
+    target_link_libraries(ui PRIVATE X11::X11)
+endif()