[Buildroot] [PATCH v2] package/wlroots, package/cage: change mesa3d dependency to virtual libegl/libgles

[Buildroot] [PATCH v2] package/wlroots, package/cage: change mesa3d dependency to virtual libegl/libgles

[Gilles Talis]

Since commits:
https://github.com/swaywm/wlroots/commit/c2288a7b88240e4377bfc1c67b44efb58f704a42
https://github.com/swaywm/wlroots/commit/e18599b05e0f0cbeba11adbd489e801285470eab

Mesa dependency is no longer required. Wlroots is able to run on drivers
that provide EGL and GLES2.0 support, and with specific EGL wayland extensions.
(thus the BR2_PACKAGE_HAS_LIBEGL_WAYLAND dependency)

This was verified on NXP's i.MX8MMini using imx-gpu-viv driver.

Signed-off-by: Julien Olivain <ju.o@free.fr>
Signed-off-by: Gilles Talis <gilles.talis@gmail.com>
---
Changes v1 -> v2:
 - Added BR2_PACKAGE_HAS_LIBEGL_WAYLAND dependency
 - Squashed wlroots and cage patches in one single patch

 package/cage/Config.in     | 12 +++++++-----
 package/wlroots/Config.in  | 15 +++++++--------
 package/wlroots/wlroots.mk |  3 ++-
 3 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/package/cage/Config.in b/package/cage/Config.in
index 3bef08f037..0844d6ff62 100644
--- a/package/cage/Config.in
+++ b/package/cage/Config.in
@@ -1,6 +1,7 @@
-comment "cage needs udev, mesa3d w/ EGL and GLES support"
-	depends on !BR2_PACKAGE_MESA3D_OPENGL_EGL || \
-		!BR2_PACKAGE_MESA3D_OPENGL_ES || \
+comment "cage needs udev, EGL w/ Wayland backend and OpenGL ES support"
+	depends on !BR2_PACKAGE_HAS_LIBEGL || \
+		!BR2_PACKAGE_HAS_LIBEGL_WAYLAND || \
+		!BR2_PACKAGE_HAS_LIBGLES || \
 		!BR2_PACKAGE_HAS_UDEV
 
 comment "cage needs a toolchain w/ threads, dynamic library"
@@ -11,9 +12,10 @@ config BR2_PACKAGE_CAGE
 	bool "cage"
 	depends on !BR2_STATIC_LIBS # wlroots
 	depends on BR2_TOOLCHAIN_HAS_THREADS # wlroots
+	depends on BR2_PACKAGE_HAS_LIBEGL # wlroots
+	depends on BR2_PACKAGE_HAS_LIBEGL_WAYLAND # wlroots
+	depends on BR2_PACKAGE_HAS_LIBGLES # wlroots
 	depends on BR2_PACKAGE_HAS_UDEV # wlroots
-	depends on BR2_PACKAGE_MESA3D_OPENGL_EGL # wlroots
-	depends on BR2_PACKAGE_MESA3D_OPENGL_ES # wlroots
 	select BR2_PACKAGE_WLROOTS
 	help
 	  Kiosk compositor for Wayland, which displays a single
diff --git a/package/wlroots/Config.in b/package/wlroots/Config.in
index 2f72fd4945..694aa79de4 100644
--- a/package/wlroots/Config.in
+++ b/package/wlroots/Config.in
@@ -1,6 +1,7 @@
-comment "wlroots needs udev, mesa3d w/ EGL and GLES support"
-	depends on !BR2_PACKAGE_MESA3D_OPENGL_EGL || \
-		!BR2_PACKAGE_MESA3D_OPENGL_ES || \
+comment "wlroots needs udev, EGL w/ Wayland backend and OpenGL ES support"
+	depends on !BR2_PACKAGE_HAS_LIBEGL || \
+		!BR2_PACKAGE_HAS_LIBEGL_WAYLAND || \
+		!BR2_PACKAGE_HAS_LIBGLES || \
 		!BR2_PACKAGE_HAS_UDEV
 
 comment "wlroots needs a toolchain w/ threads, dynamic library"
@@ -12,11 +13,9 @@ config BR2_PACKAGE_WLROOTS
 	depends on !BR2_STATIC_LIBS # wayland
 	depends on BR2_TOOLCHAIN_HAS_THREADS # libdrm, wayland
 	depends on BR2_PACKAGE_HAS_UDEV # libinput
-	# Technically wlroots should work with any OpenGL implementation
-	# which provides EGL, GLES2, and libgbm; but in practice only
-	# Mesa ships an usable libgbm.
-	depends on BR2_PACKAGE_MESA3D_OPENGL_EGL
-	depends on BR2_PACKAGE_MESA3D_OPENGL_ES
+	depends on BR2_PACKAGE_HAS_LIBEGL
+	depends on BR2_PACKAGE_HAS_LIBEGL_WAYLAND
+	depends on BR2_PACKAGE_HAS_LIBGLES
 	select BR2_PACKAGE_LIBDRM
 	select BR2_PACKAGE_LIBINPUT
 	select BR2_PACKAGE_LIBXKBCOMMON
diff --git a/package/wlroots/wlroots.mk b/package/wlroots/wlroots.mk
index 5665d5a956..0160b1aedb 100644
--- a/package/wlroots/wlroots.mk
+++ b/package/wlroots/wlroots.mk
@@ -15,7 +15,8 @@ WLROOTS_DEPENDENCIES = \
 	host-wayland \
 	libinput \
 	libxkbcommon \
-	mesa3d \
+	libegl \
+	libgles \
 	pixman \
 	udev \
 	wayland \
-- 
2.27.0

[Buildroot] [PATCH v2] package/wlroots, package/cage: change mesa3d dependency to virtual libegl/libgles

[Thomas Petazzoni]

On Sat, 13 Feb 2021 13:33:53 +0100
Gilles Talis <gilles.talis@gmail.com> wrote:

> Since commits:
> https://github.com/swaywm/wlroots/commit/c2288a7b88240e4377bfc1c67b44efb58f704a42
> https://github.com/swaywm/wlroots/commit/e18599b05e0f0cbeba11adbd489e801285470eab
> 
> Mesa dependency is no longer required. Wlroots is able to run on drivers
> that provide EGL and GLES2.0 support, and with specific EGL wayland extensions.
> (thus the BR2_PACKAGE_HAS_LIBEGL_WAYLAND dependency)
> 
> This was verified on NXP's i.MX8MMini using imx-gpu-viv driver.
> 
> Signed-off-by: Julien Olivain <ju.o@free.fr>
> Signed-off-by: Gilles Talis <gilles.talis@gmail.com>
> ---
> Changes v1 -> v2:
>  - Added BR2_PACKAGE_HAS_LIBEGL_WAYLAND dependency
>  - Squashed wlroots and cage patches in one single patch

Applied to next, thanks.

Thomas
-- 
Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com