x11-toolkits/wlroots: Add mesa-dri to RUN_DEPEND

[manu]

Summary

wlroots will try to create a GBM device and this need the gbm libs from mesa.

Test Plan

On a fresh install ' pkg install sway alacritty' and start sway.

[jbeich]

wlroots is not a direct consumer of mesa-dri. OpenGL/EGL/Vulkan/etc simply don't work without drivers as even software renderer is part of mesa-dri. This affects all mesa-libs consumers that don't have a fallback. No other port adds mesa-dri to RUN_DEPENDS.

Apply to Mk/Uses/gl.mk instead.

[jbeich]

Example consumer without fallback:

$ alacritty
libEGL warning: DRI2: failed to authenticate
libEGL warning: MESA-LOADER: failed to open swrast (search paths /usr/local/lib/dri)

libEGL warning: MESA-LOADER: failed to open swrast (search paths /usr/local/lib/dri)

libEGL warning: DRI2: failed to authenticate
libEGL warning: MESA-LOADER: failed to open swrast (search paths /usr/local/lib/dri)

libEGL warning: MESA-LOADER: failed to open swrast (search paths /usr/local/lib/dri)

Alacritty encountered an unrecoverable error:

        Error creating GL context; Received multiple errors. Errors: `[OsError("eglInitialize failed"), OsError("`glXQueryExtensionsString` found no glX extensions")]`

[val_packett.cool]

Do people get mesa-dri just by installing xorg, or xorg-server, or a desktop environment? (If so, how?)

[jbeich]

In D23853#524704, @greg_unrelenting.technology wrote:

Do people get mesa-dri just by installing xorg, or xorg-server, or a desktop environment? (If so, how?)

USES=xorg-cat:xserver adds RUN_DEPENDS on mesa-dri. x11/xorg also adds RUN_DEPENDS on mesa-dri (duplicate?).

[manu]

In D23853#524569, @jbeich wrote:

wlroots is not a direct consumer of mesa-dri. OpenGL/EGL/Vulkan/etc simply don't work without drivers as even software renderer is part of mesa-dri. This affects all mesa-libs consumers that don't have a fallback. No other port adds mesa-dri to RUN_DEPENDS.

Apply to Mk/Uses/gl.mk instead.

What do you mean by fallback ?

[jbeich]

Given X11 server depends on mesa-dri it makes sense to make Wayland compositor(s) depend on mesa-dri as well. For running regular GUI applications in a jail gfx drivers are required less often.

Sorry for the initial confusion.

In D23853#524811, @manu wrote:

What do you mean by fallback ?

Non-accelerated wl_shm on Wayland, MIT-SHM on X11. wlroots only supports EGL (Vulkan is slated until renderer is refactored) and requires GBM (not supported by proprietary NVIDIA driver) to run from console.

[jbeich]

wlroots will try to create a GBM device and this need the gbm libs from mesa.

"gbm libs" are part of mesa-libs package. In commit message better include error excerpt to avoid ambiguity.