[OE-core] [PATCH 00/23] Enable accelerated OpenGL in qemu

Mon Jan 14 15:11:33 UTC 2019

Oh, I forgot the rationale:

1. I think we are heading towards a reality where some kind of working
GL is a 'must' for any kind of UI work.
2. Typically people build images and then transfer them to the NUC or
even target boards for testing - using qemu would be less awkward.
3. Current qemu configuration is basically useless here.

Alex

On Mon, 14 Jan 2019 at 16:03, Alexander Kanavin <alex.kanavin at gmail.com> wrote:
>
> 0. TLDR:
>
> $ . oe-init-build-env build-virgl
> $ bitbake core-image-sato-sdk
> $ runqemu kvm gl
> $$ run glxgears or any other GL-capable binary inside qemu
>
> 1. qemu is switched over to use gtk frontend. I simply couldn't get SDL
> frontend to work properly, it only displays a blank black window or doesn't
> start at all. Same thing happens with qemu binaries provided by Fedora and
> opensuse (Ubuntu's qemu lacks virgl support). Seems like SDL support has
> regressed.
>
> 2. While the components are built against the most minimum necessary
> mesa-native set (gbm, egl, dri with no drivers), libepoxy loads and uses the
> host GL implementation (through a chrpath hack). This is both to save build
> times, and because the host is likely to have a set of drivers more
> appropriate for the physical machine (e.g. proprietary nvidia stack,
> although I didn't test that).
>
> 3. I tested this with
> - glamor X server
> - weston compositor with drm backend (build core-image-weston, then edit
>   weston.ini in the image to use drm backed instead of fbdev).
> - kmscube
> - glxgears
> - https://www.geeks3d.com/gputest/
>
> The latter two show FPS that is similar to running them directly on the host.
>
> 4. Some things I am not sure about:
>
>  - how much of a 'default' should this be for running qemu. It works for me,
> but other people might find it less stable compared to the existing
> sdl-vmware-swrast setup.
>
> - what other tests and demos could be run
>
> - how could this be tested on the autobuilder. I wrote an oe-selftest for
> this, but it does require an X session, and ability to create opengl
> contexts on the host.
>
> The following changes since commit 0c9f6e9bb18b2a52b5a5e828772a9619ee4d8515:
>
>   strace: add lost Upstream-Status (2019-01-14 11:49:07 +0000)
>
> are available in the Git repository at:
>
>   git://git.yoctoproject.org/poky-contrib akanavin/virgl-gtk
>   http://git.yoctoproject.org/cgit.cgi/poky-contrib/log/?h=akanavin/virgl-gtk
>
> Alexander Kanavin (23):
>   gtk+3: enable native/nativesdk variant
>   gtk+3: remove the gtk-icon-utils-native recipe
>   shared-mime-info: update the database also in native builds
>   gtk+: drop support for choosing between 2.x and 3.x implementations of
>     gtk-update-icon-cache
>   pixbufcache.bbclass: remove a dependency loop introduced by enabling
>     gtk+3-native
>   meta: add native and nativesdk variants to various recipes to enable
>     gtk+3-native/nativesdk
>   libepoxy: enable native/nativesdk variants
>   mesa: enable native and nativesdk variants
>   virglrenderer: add a recipe
>   qemu: enable virglrenderer and glx options for native/nativesdk builds
>   qemu: drop --with-gtkabi option, as it is no longer supported
>   mesa-gl: do not enable nativesdk variant to avoid clashes with main
>     mesa recipe
>   local.conf.sample: adjust the qemu config to enable gtk+ instead of
>     sdl
>   qemu: build target variant with gtk+, and nativesdk variant without
>     sdl
>   qemu: remove support for building against host sdl
>   atk: disable gobject-introspection for nativesdk
>   qemu: add a gettext-native dependency
>   libjpeg-turbo: fix nativesdk build in same way as native builds are
>   qemu: add a patch to avoid a missing include error
>   runqemu: add support for virgl GL acceleration
>   runqemu: do not check for GL libraries
>   qemu: add environment variable wrappers to make qemu look good with
>     gtk frontend
>   selftest: add a test for virgl GL acceleration
>
>  meta-poky/conf/local.conf.sample              |  10 +-
>  meta-selftest/lib/oeqa/runtime/cases/virgl.py |  17 +++
>  meta/classes/pixbufcache.bbclass              |   2 +-
>  meta/conf/machine/include/qemuboot-x86.inc    |   2 +-
>  meta/lib/oeqa/selftest/cases/runtime_test.py  |  19 ++++
>  meta/recipes-devtools/qemu/qemu.inc           |  40 ++++---
>  .../qemu/0001-Add-a-missing-X11-include.patch |  23 ++++
>  meta/recipes-devtools/qemu/qemu_3.1.0.bb      |   1 +
>  .../gdk-pixbuf/gdk-pixbuf_2.36.11.bb          |   2 +-
>  .../gnome/adwaita-icon-theme_3.28.0.bb        |   2 +
>  meta/recipes-gnome/gtk+/gtk+.inc              |   5 +-
>  meta/recipes-gnome/gtk+/gtk+3.inc             |  29 +++--
>  .../gtk+/gtk-icon-utils-native_3.22.30.bb     |  63 -----------
>  ...endency-from-gtk-encode-symbolic-svg.patch | 102 ------------------
>  .../hicolor-icon-theme_0.17.bb                |   2 +
>  meta/recipes-graphics/cairo/cairo_1.14.12.bb  |   2 +-
>  .../harfbuzz/harfbuzz_2.2.0.bb                |   2 +-
>  .../jpeg/libjpeg-turbo_2.0.1.bb               |   3 +-
>  .../libepoxy/libepoxy_1.5.3.bb                |  12 +++
>  meta/recipes-graphics/mesa/mesa-gl_18.1.9.bb  |   2 +
>  meta/recipes-graphics/mesa/mesa.inc           |  12 ++-
>  meta/recipes-graphics/pango/pango_1.42.4.bb   |   2 +-
>  .../ttf-fonts/liberation-fonts_2.00.1.bb      |   2 +
>  .../virglrenderer/virglrenderer_git.bb        |  17 +++
>  .../xorg-lib/libxcomposite_0.4.4.bb           |   2 +-
>  .../xorg-lib/libxdamage_1.1.4.bb              |   2 +-
>  meta/recipes-graphics/xorg-lib/libxi_1.7.9.bb |   2 +
>  .../xorg-lib/libxtst_1.2.3.bb                 |   1 +
>  .../recipes-support/atk/at-spi2-atk_2.30.0.bb |   2 +
>  .../atk/at-spi2-core_2.30.0.bb                |   1 +
>  meta/recipes-support/atk/atk_2.30.0.bb        |   4 +-
>  .../shared-mime-info/shared-mime-info.inc     |   2 +
>  meta/recipes-support/vte/vte_0.52.2.bb        |   2 +
>  scripts/runqemu                               |  46 ++------
>  34 files changed, 193 insertions(+), 244 deletions(-)
>  create mode 100644 meta-selftest/lib/oeqa/runtime/cases/virgl.py
>  create mode 100644 meta/recipes-devtools/qemu/qemu/0001-Add-a-missing-X11-include.patch
>  delete mode 100644 meta/recipes-gnome/gtk+/gtk-icon-utils-native_3.22.30.bb
>  delete mode 100644 meta/recipes-gnome/gtk+/gtk-icon-utils/Remove-Gdk-dependency-from-gtk-encode-symbolic-svg.patch
>  create mode 100644 meta/recipes-graphics/virglrenderer/virglrenderer_git.bb
>
> --
> 2.17.1
>