Test Mate Desktop

Dockerfile

@@ -49,6 +49,9 @@ RUN dnf install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docke
 
 RUN dnf install xorg-x11-xinit xkbcomp xinput xlibre-xserver-Xorg xlibre-xf86-input-libinput -y
 
+# Delete default Chromium config so it can be replaced by my own
+RUN rm -f /etc/chromium/chromium.conf
+
 # Add rule to SELinux allowing modules to be loaded into custom kernel
 RUN setsebool -P domain_kernel_load_modules on
 

etc/X11/xorg.conf.d/20-modesetting.conf

@@ -3,5 +3,5 @@ Section "Device"
     Driver        "modesetting"
     Option        "ShadowFB" "false" # you don't need on recent hardware
     Option        "Atomic" "true" #only effective on Xlibre, or Xorg-git with a special patch
-    Option        "TearFree" "true"
+    Option        "TearFree" "false" # We will be using compositor, so TearFree (extra buffer) in the driver is not necessary
 EndSection

etc/chromium/chromium.conf

@@ -0,0 +1,76 @@
+# system wide chromium flags
+
+ARCH="$(arch)"
+MODE="$(systemd-detect-virt)"
+
+# GRAPHIC_DRIVER=[amd|intel|nvidia|default]
+GRAPHIC_DRIVER=intel
+
+# WEB_DARKMODE=[on|off]
+WEB_DARKMODE=off
+
+# NATIVE_WAYLAND=[on|off]
+# chromium >=141 switched to --ozone-platform-hint=auto
+if [ ! -z "$WAYLAND_DISPLAY" ]; then
+   NATIVE_WAYLAND=on
+else
+   NATIVE_WAYLAND=off
+fi
+
+DISABLE_FEATURES="LensOverlay,ExtensionManifestV2Unsupported,ExtensionManifestV2Disabled"
+ENABLE_FEATURES="AllowQt"
+CHROMIUM_FLAGS=" --enable-chrome-browser-cloud-management"
+if [ "$NATIVE_WAYLAND" == "on" ] ; then
+   ENABLE_FEATURES+=",WaylandLinuxDrmSyncobj,WaylandPerSurfaceScale,WaylandUiScale"
+   CHROMIUM_FLAGS+=" --ozone-platform=wayland"
+else
+   CHROMIUM_FLAGS+=" --enable-gpu-memory-buffer-video-frames"
+   CHROMIUM_FLAGS+=" --enable-zero-copy"
+   CHROMIUM_FLAGS+=" --ignore-gpu-blocklist --disable-gpu-driver-bug-workaround"
+   CHROMIUM_FLAGS+=" --enable-gpu-rasterization"
+fi
+
+ENABLE_FEATURES+=",AcceleratedVideoDecodeLinuxGL,AcceleratedVideoDecodeLinuxZeroCopyGL"
+
+case "$GRAPHIC_DRIVER" in
+   amd|intel)
+      # Need new mesa with AMD multi planes support, is supported in fedora >= 40 (mesa-24.1.1 or newer)
+      # see https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26165
+      CHROMIUM_FLAGS+=" --enable-accelerated-video-decode"
+      ENABLE_FEATURES+=",VaapiIgnoreDriverChecks,UseMultiPlaneFormatForHardwareVideo"
+      ;;
+   nvidia)
+      # The NVIDIA VaAPI drivers are known to not support Chromium
+      # see https://crbug.com/1492880. This feature switch is
+      # provided for developers to test VaAPI drivers on NVIDIA GPUs
+      ENABLE_FEATURES+=",VaapiOnNvidiaGPUs"
+      export CUDA_DISABLE_PERF_BOOST=1
+      ;;
+   *)
+      ENABLE_FEATURES+=",AcceleratedVideoEncoder"
+      ;;
+esac
+
+if [ "$MODE" != "none" ] ; then
+   # chromium in VM, running with standard setting
+   CHROMIUM_FLAGS=""
+   DISABLE_FEATURES=""
+   ENABLE_FEATURES=""
+fi
+
+# Set gtk version to 3 by default
+# todo: switch to gtk4 in the future
+CHROMIUM_FLAGS+=" --gtk-version=3"
+
+# Web Dark mode
+if [ "$WEB_DARKMODE" == "on" ] ; then
+   darktype="WebContentsForceDark:inversion_method/cielab_based/image_behavior/none/foreground_lightness_threshold/150/background_lightness_threshold/205"
+   if [ -z "$ENABLE_FEATURES" ] ; then
+       ENABLE_FEATURES+="$darktype"
+   else
+       ENABLE_FEATURES+=",$darktype"
+   fi
+fi
+
+[ -z "$DISABLE_FEATURES" ] || CHROMIUM_FLAGS+=" --disable-features=$DISABLE_FEATURES"
+[ -z "$ENABLE_FEATURES" ] || CHROMIUM_FLAGS+=" --enable-features=$ENABLE_FEATURES"