[oe] [meta-browser][PATCH 3/4] Add use-egl PACKAGECONFIG to let chromium use EGL automatically

[Carlos Rafael Giani]

By default, Chromium will try to use GLX and regular OpenGL. On embedded
platforms, these are often not present, or unaccelerated, and using EGL
and OpenGL ES instead makes more sense. To produce builds that use EGL and
OpenGL ES by default instead, this PACKAGECONFIG option can be used.

An EGL/OpenGLES-enabled build produces a chromium version that renders
2D and WebGL with GPU acceleration (if present).

Signed-off-by: Carlos Rafael Giani <dv at pseudoterminal.org>
---
 recipes-browser/chromium/chromium_35.0.1883.0.bb | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/recipes-browser/chromium/chromium_35.0.1883.0.bb b/recipes-browser/chromium/chromium_35.0.1883.0.bb
index 080282b..d0495d8 100644
--- a/recipes-browser/chromium/chromium_35.0.1883.0.bb
+++ b/recipes-browser/chromium/chromium_35.0.1883.0.bb
@@ -34,8 +34,15 @@ EXTRA_OEGYP =	" \
 ARMFPABI_armv7a = "${@bb.utils.contains('TUNE_FEATURES', 'callconvention-hard', 'arm_float_abi=hard', 'arm_float_abi=softfp', d)}"
 
 CHROMIUM_EXTRA_ARGS = " \
+	${@bb.utils.contains('PACKAGECONFIG', 'use-egl', '--use-gl=egl', '', d)} \
 "
 
+python __anonymous() {
+    pkgconfig = d.getVar('PACKAGECONFIG', True)
+    if 'use-egl' in pkgconfig.split():
+        d.appendVar("DEPENDS", " virtual/egl virtual/libgles2")
+}
+
 export GYP_DEFINES="${ARMFPABI} release_extra_cflags='-Wno-error=unused-local-typedefs' sysroot=''"
 do_configure() {
 	cd ${S}
-- 
1.8.3.2