Re: [PATCH v2 3/4] mesa: make gallium swrast target optional

["Ulrich Ölmann" <u.oelmann@pengutronix.de>]

Hi there,

On Thu, May 02 2019 at 20:09 +0200, Marco Felsch <m.felsch@pengutronix.de> wrote:
> Most the time we are compiling for embedded targets which have dedicated
> hardware combinations. Setting swrast default on isn't a good solution
> for such devices because if the hardware render node have an issue or
> don't support a special format/request mesa will fallback to the
> software renderer. This will make it harder to debug performace issues.
>
> A better way is to let the user deciced if a software renderer is
> needed e.g. if the system has no hardware renderer or to have such a
> fallback device. This way the user knows that the software renderer is
> enabled.
>
> Upstream-Status: Submitted [openembedded-core@lists.openembedded.org]
>
> Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
> ---
> Changelog:
>
> v2:
> - added Upstream-Status line
> - fix leading comma
>
>  meta/recipes-graphics/mesa/mesa.inc | 21 ++++++++++++---------
>  1 file changed, 12 insertions(+), 9 deletions(-)
>
> diff --git a/meta/recipes-graphics/mesa/mesa.inc b/meta/recipes-graphics/mesa/mesa.inc
> index 7516a06639..b41d3054c3 100644
> --- a/meta/recipes-graphics/mesa/mesa.inc
> +++ b/meta/recipes-graphics/mesa/mesa.inc
> @@ -86,24 +86,27 @@ PACKAGECONFIG[egl] = "-Degl=true, -Degl=false"
>
>  PACKAGECONFIG[etnaviv] = ""
>  PACKAGECONFIG[kmsro] = ""
> +PACKAGECONFIG[swrast] = ""
>
> -GALLIUMDRIVERS = "swrast"
> -GALLIUMDRIVERS_append ="${@bb.utils.contains('PACKAGECONFIG', 'etnaviv', ',etnaviv', '', d)}"
> -GALLIUMDRIVERS_append ="${@bb.utils.contains('PACKAGECONFIG', 'kmsro', ',kmsro', '', d)}"
> +GALLIUMDRIVERS = ""
> +GALLIUMDRIVERS +="${@bb.utils.contains('PACKAGECONFIG', 'swrast', 'swrast', '', d)}"
> +GALLIUMDRIVERS +="${@bb.utils.contains('PACKAGECONFIG', 'etnaviv', 'etnaviv', '', d)}"
> +GALLIUMDRIVERS +="${@bb.utils.contains('PACKAGECONFIG', 'kmsro', 'kmsro', '', d)}"
>
>  # radeonsi requires LLVM
> -GALLIUMDRIVERS_LLVM33 = "${@bb.utils.contains('PACKAGECONFIG', 'r600', ',radeonsi', '', d)}"
> +GALLIUMDRIVERS_LLVM33 = "${@bb.utils.contains('PACKAGECONFIG', 'r600', 'radeonsi', '', d)}"
>  GALLIUMDRIVERS_LLVM33_ENABLED = "${@oe.utils.version_less_or_equal('MESA_LLVM_RELEASE', '3.2', False, len('${GALLIUMDRIVERS_LLVM33}') > 0, d)}"
> -GALLIUMDRIVERS_LLVM = "r300,svga,nouveau${@',${GALLIUMDRIVERS_LLVM33}' if ${GALLIUMDRIVERS_LLVM33_ENABLED} else ''}"
> +GALLIUMDRIVERS_LLVM = "r300 svga nouveau ${@'${GALLIUMDRIVERS_LLVM33}' if ${GALLIUMDRIVERS_LLVM33_ENABLED} else ''}"
>
>  PACKAGECONFIG[r600] = ""
>
> -GALLIUMDRIVERS_append = "${@bb.utils.contains('PACKAGECONFIG', 'gallium-llvm', ',${GALLIUMDRIVERS_LLVM}', '', d)}"
> -GALLIUMDRIVERS_append = "${@bb.utils.contains('PACKAGECONFIG', 'r600', ',r600', '', d)}"
> -GALLIUMDRIVERS_append = ",virgl"
> +GALLIUMDRIVERS += "${@bb.utils.contains('PACKAGECONFIG', 'gallium-llvm', '${GALLIUMDRIVERS_LLVM}', '', d)}"
> +GALLIUMDRIVERS += "${@bb.utils.contains('PACKAGECONFIG', 'r600', 'r600', '', d)}"
> +GALLIUMDRIVERS += "virgl"
> +GALLIUMDRIVERS_MESON = "${@",".join("${GALLIUMDRIVERS}".split())}"

how does it have to look like if I want to go without this auxiliary
variable GALLIUMDRIVERS_MESON and instead insert the Python expression
that generates its content directly into ...

>  # keep --with-gallium-drivers separate, because when only one of gallium versions is enabled, other 2 were adding --without-gallium-drivers
> -PACKAGECONFIG[gallium] = "-Dgallium-drivers=${GALLIUMDRIVERS}, -Dgallium-drivers=''"
> +PACKAGECONFIG[gallium] = "-Dgallium-drivers=${GALLIUMDRIVERS_MESON}, -Dgallium-drivers=''"

... the above assignment of PACKAGECONFIG[gallium]?
I can't get it to work - perhaps it is a problem with escaping things?

Best regards
Ulrich


>  MESA_LLVM_RELEASE ?= "8.0.0"
>  PACKAGECONFIG[gallium-llvm] = "-Dllvm=true -Dshared-llvm=true, -Dllvm=false, llvm${MESA_LLVM_RELEASE} llvm-native \
>                                 ${@'elfutils' if ${GALLIUMDRIVERS_LLVM33_ENABLED} else ''}"
-- 
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