[oe] [OE-Core][PATCH 2/2] mesa: enable glvnd support

[Rob Woolley <rob.woolley@windriver.com>]

This is a backport of 1c0577d66b5c26b9b248797f17d652daf6d9dfd1 from
openembedded-core. It is needed to properly find OpenGL using
FindOpenGL.cmake.

Allows mesa to be built with glvnd support.
Thus, creates libEGL_mesa.so* and libGLX_mesa.so*
mesa(vendor) libraries meant to coexist with vendor
neutral dispatch libraries from libglvnd.

Signed-off-by: Vincent Davis Jr <vince@underview.tech>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Rob Woolley <rob.woolley@windriver.com>
---
 .../conf/distro/include/default-providers.inc |  1 +
 meta/recipes-graphics/mesa/mesa.inc           | 20 +++++++++++++------
 2 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/meta/conf/distro/include/default-providers.inc b/meta/conf/distro/include/default-providers.inc
index 6defdca12d..3a4e989c1f 100644
--- a/meta/conf/distro/include/default-providers.inc
+++ b/meta/conf/distro/include/default-providers.inc
@@ -5,6 +5,7 @@ PREFERRED_PROVIDER_virtual/xserver ?= "xserver-xorg"
 PREFERRED_PROVIDER_virtual/xserver-xf86 ?= "xserver-xorg"
 PREFERRED_PROVIDER_virtual/egl ?= "mesa"
 PREFERRED_PROVIDER_virtual/libgl ?= "mesa"
+PREFERRED_PROVIDER_virtual/libglx ?= "mesa"
 PREFERRED_PROVIDER_virtual/libgl-native ?= "mesa-native"
 PREFERRED_PROVIDER_virtual/nativesdk-libgl ?= "nativesdk-mesa"
 PREFERRED_PROVIDER_virtual/libgles1 ?= "mesa"
diff --git a/meta/recipes-graphics/mesa/mesa.inc b/meta/recipes-graphics/mesa/mesa.inc
index afac8014fe..27c3322b8b 100644
--- a/meta/recipes-graphics/mesa/mesa.inc
+++ b/meta/recipes-graphics/mesa/mesa.inc
@@ -30,15 +30,18 @@ UPSTREAM_CHECK_GITTAGREGEX = "mesa-(?P<pver>\d+(\.\d+)+)"
 #because we cannot rely on the fact that all apps will use pkgconfig,
 #make eglplatform.h independent of MESA_EGL_NO_X11_HEADER
 do_install:append() {
-    if ${@bb.utils.contains('PACKAGECONFIG', 'egl', 'true', 'false', d)}; then
-        sed -i -e 's/^#elif defined(__unix__) && defined(EGL_NO_X11)$/#elif defined(__unix__) \&\& defined(EGL_NO_X11) || ${@bb.utils.contains('PACKAGECONFIG', 'x11', '0', '1', d)}/' ${D}${includedir}/EGL/eglplatform.h
-    fi
+  # sed can't find EGL/eglplatform.h as it doesn't get installed when glvnd enabled.
+  # So, check if EGL/eglplatform.h exists before running sed.
+  if ${@bb.utils.contains('PACKAGECONFIG', 'egl', 'true', 'false', d)} && [ -f ${D}${includedir}/EGL/eglplatform.h ]; then
+      sed -i -e 's/^#elif defined(__unix__) && defined(EGL_NO_X11)$/#elif defined(__unix__) \&\& defined(EGL_NO_X11) || ${@bb.utils.contains('PACKAGECONFIG', 'x11', '0', '1', d)}/' ${D}${includedir}/EGL/eglplatform.h
+  fi
 }
 
 DEPENDS = "expat makedepend-native flex-native bison-native libxml2-native zlib chrpath-replacement-native python3-mako-native gettext-native"
 EXTRANATIVEPATH += "chrpath-native"
 PROVIDES = " \
     ${@bb.utils.contains('PACKAGECONFIG', 'opengl', 'virtual/libgl', '', d)} \
+    ${@bb.utils.contains('PACKAGECONFIG', 'glvnd', 'virtual/libglx', '', d)} \
     ${@bb.utils.contains('PACKAGECONFIG', 'gles', 'virtual/libgles1 virtual/libgles2 virtual/libgles3', '', d)} \
     ${@bb.utils.contains('PACKAGECONFIG', 'egl', 'virtual/egl', '', d)} \
     ${@bb.utils.contains('PACKAGECONFIG', 'gbm', 'virtual/libgbm', '', d)} \
@@ -113,6 +116,7 @@ VULKAN_DRIVERS:append ="${@bb.utils.contains('PACKAGECONFIG', 'broadcom', ',broa
 PACKAGECONFIG[vulkan] = "-Dvulkan-drivers=${@strip_comma('${VULKAN_DRIVERS}')}, -Dvulkan-drivers='',"
 
 PACKAGECONFIG[opengl] = "-Dopengl=true, -Dopengl=false"
+PACKAGECONFIG[glvnd] = "-Dglvnd=true, -Dglvnd=false, libglvnd"
 
 # "gles" requires "opengl"
 PACKAGECONFIG[gles] = "-Dgles1=enabled -Dgles2=enabled, -Dgles1=disabled -Dgles2=disabled"
@@ -196,6 +200,7 @@ RDEPENDS:libopencl-mesa += "${@bb.utils.contains('PACKAGECONFIG', 'opencl', 'lib
 PACKAGES =+ "libegl-mesa libegl-mesa-dev \
              libosmesa libosmesa-dev \
              libgl-mesa libgl-mesa-dev \
+             libglx-mesa libglx-mesa-dev \
              libglapi libglapi-dev \
              libgbm libgbm-dev \
              libgles1-mesa libgles1-mesa-dev \
@@ -214,7 +219,7 @@ do_install:append () {
     rm -f ${D}${libdir}/gallium-pipe/*.la
     rm -f ${D}${libdir}/gbm/*.la
 
-    # it was packaged in libdricore9.1.3-1 and preventing upgrades when debian.bbclass was used 
+    # it was packaged in libdricore9.1.3-1 and preventing upgrades when debian.bbclass was used
     chrpath --delete ${D}${libdir}/dri/*_dri.so || true
 
     # libwayland-egl has been moved to wayland 1.15+
@@ -232,6 +237,7 @@ python __anonymous() {
         suffix = "-native"
     for p in (("egl", "libegl", "libegl1"),
               ("opengl", "libgl", "libgl1"),
+              ("glvnd", "libglx",),
               ("gles", "libgles1", "libglesv1-cm1"),
               ("gles", "libgles2", "libglesv2-2"),
               ("gles", "libgles3",),
@@ -290,20 +296,22 @@ PACKAGES_DYNAMIC:class-native = "^mesa-driver-.*-native"
 FILES:mesa-megadriver = "${libdir}/dri/* ${datadir}/drirc.d"
 FILES:mesa-vulkan-drivers = "${libdir}/libvulkan_*.so ${datadir}/vulkan"
 FILES:${PN}-vdpau-drivers = "${libdir}/vdpau/*.so.*"
-FILES:libegl-mesa = "${libdir}/libEGL.so.*"
+FILES:libegl-mesa = "${libdir}/libEGL*.so.* ${datadir}/glvnd/egl_vendor.d"
 FILES:libgbm = "${libdir}/libgbm.so.*"
 FILES:libgles1-mesa = "${libdir}/libGLESv1*.so.*"
 FILES:libgles2-mesa = "${libdir}/libGLESv2.so.*"
 FILES:libgl-mesa = "${libdir}/libGL.so.*"
+FILES:libglx-mesa = "${libdir}/libGLX*.so.*"
 FILES:libopencl-mesa = "${libdir}/libMesaOpenCL.so.* ${sysconfdir}/OpenCL/vendors/mesa.icd"
 FILES:libglapi = "${libdir}/libglapi.so.*"
 FILES:libosmesa = "${libdir}/libOSMesa.so.*"
 FILES:libxatracker = "${libdir}/libxatracker.so.*"
 
 FILES:${PN}-dev = "${libdir}/pkgconfig/dri.pc ${includedir}/vulkan ${libdir}/vdpau/*.so"
-FILES:libegl-mesa-dev = "${libdir}/libEGL.* ${includedir}/EGL ${includedir}/KHR ${libdir}/pkgconfig/egl.pc"
+FILES:libegl-mesa-dev = "${libdir}/libEGL*.* ${includedir}/EGL ${includedir}/KHR ${libdir}/pkgconfig/egl.pc"
 FILES:libgbm-dev = "${libdir}/libgbm.* ${libdir}/pkgconfig/gbm.pc ${includedir}/gbm.h"
 FILES:libgl-mesa-dev = "${libdir}/libGL.* ${includedir}/GL ${libdir}/pkgconfig/gl.pc"
+FILES:libglx-mesa-dev = "${libdir}/libGLX*.*"
 FILES:libglapi-dev = "${libdir}/libglapi.*"
 FILES:libgles1-mesa-dev = "${libdir}/libGLESv1*.* ${includedir}/GLES ${libdir}/pkgconfig/glesv1*.pc"
 FILES:libgles2-mesa-dev = "${libdir}/libGLESv2.* ${includedir}/GLES2 ${libdir}/pkgconfig/glesv2.pc"
-- 
2.43.0