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Chromium-OzoneGBM

My Personnel repo to maintain all needed dependencies to run Chromium Browser with Ozone-GBM backend on Linux Desktop.

#Clone, Configure & build Mesa

You might need to install any dependencies for Mesa specific to your distribution. These instructions assume you have done this already.

Setup environment for local install:

 $export WLD=$HOME/install 
 $export LD_LIBRARY_PATH=$WLD/lib
 $export PKG_CONFIG_PATH=$WLD/lib/pkgconfig/:$WLD/share/pkgconfig/
 $export ACLOCAL_PATH=$WLD/share/aclocal
 $export ACLOCAL="aclocal -I $ACLOCAL_PATH"

Clone & Build DRM

 $ git clone git://anongit.freedesktop.org/git/mesa/drm  
 $ cd drm
 $ ./autogen.sh --prefix=$WLD
 $ make -j4 && make install

Clone &Build Mesa

 $ git clone git://anongit.freedesktop.org/mesa/mesa
 $ cd mesa
 Apply Mesa patches 0001 -003* found in the repo.
 $ ./autogen.sh --prefix=$WLD --enable-gles2 --disable-gallium-egl \
 --with-egl-platforms=drm --enable-gbm --disable-dri3 --enable-shared-glapi \
 --with-gallium-drivers= --enable-texture-float --with-dri-drivers=i965 \
 --disable-llvm-shared-libs --disable-glu --disable-glut --without-demos \
 --disable-option-checking --disable-glx
 $ make -j4 && make install

TODO: Add steps to build libva and vaapi.

Clone, Configure & build Chromium

HW: At Least 20GB of hard disk space is recommended. I have a dual channel 8GB Ram (16GB in Total). If you have like 8GB ram in total, I recommend updating it to 16GB, unless you want to spend lot of time linking things (if you go for static_library builds mentioned below).

We need Depot tools before doing anything.

Depot Tools

Chromium uses a package of scripts called depot_tools to manage checkouts and code reviews.

Cloning Depot Tools:

$ git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git

Add Depot Tools to your path:

$ export PATH=`pwd`/depot_tools:"$PATH"

If you don't want to set this manually every time you open a new shell, add this to .bashrc or whatever is your shell equivalent.

First time Chromium Checkout

$ fetch --nohooks chromium
or
$ fetch --nohooks --no-history chromium # get a shallow checkout (saves disk space and fetch time at the cost of no git history)
Now, we should have a new directory src.
$ cd src
$ git checkout master

Dependencies:

$ build/install-build-deps.sh

I am not sure if it works for all Linux distributions. If it fails, You can look at the dependencies list here https://src.chromium.org/svn/trunk/src/build/install-build-deps.sh and install your distribution equivalent.

Update Chromium code to latest master TOT:

$ gclient sync

Configure Chromium

Gyp: The cross-platform build configuration system is called gyp, and on Linux it generates ninja build files. Running gyp is analogous to the ./configure step seen in most other software.

Ninja: The actual build itself uses ninja. A prebuilt binary is in depot_tools and should already be in your path if you followed the steps above.

Firstly you need to export the GYP_DEFINES(which will be later used by Ninja while compiling):

$ export GYP_DEFINES="component=static_library use_ash=1 use_aura=1 chromeos=1 use_ozone=1 ozone_platform=gbm remove_webcore_debug_symbols=1"

Update Project files

$ build/gyp_chromium

You need to re-run this every time GYP_DEFINES are changed or any gyp files have changed..

Build Chromium

$ ninja -C out/Debug chrome -> Debug build.
$ ninja -C out/Release chrome -> Release build.

Launch Chromium

You might need to export EGL_PLATFORM=drm. I needed this as Mesa used to default to X11 otherwise, causing crashes during initialization.

Export LD_LIBRARY_PATH to point to your local install. i.e. LD_LIRARY_PATH=$WLD/lib.

Open any VT(i.e. Ctrl + Alt + F1)

$ out/Debug chrome --disable-sandbox --ozone-platform=gbm --ozone-use-surfaceless --ash-host-window-bounds=w*h
 w = Width of your display.
 h = Height of your display.