egl/dri2: implement platform_surfaceless
The surfaceless platform is for off-screen rendering only. Render node support
is required.
Only consider the render nodes. Do not use normal nodes as they require
auth hooks.
v3: change platform_null to platform_surfaceless
v4: make libdrm required for surfaceless
v5: remove modified include guards with defined(HAVE_SURFACELESS_PLATFORM)
v6: use O_CLOEXEC for drm fd
Signed-off-by: Haixia Shi <hshi@chromium.org>
Signed-off-by: Zach Reizner <zachr@google.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Chad Versace <chad.versace@intel.com>
diff --git a/configure.ac b/configure.ac
index e6d947e..3c763c2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1777,6 +1777,11 @@
AC_MSG_ERROR([EGL platform drm requires libdrm >= $LIBDRM_REQUIRED])
;;
+ surfaceless)
+ test "x$have_libdrm" != xyes &&
+ AC_MSG_ERROR([EGL platform surfaceless requires libdrm >= $LIBDRM_REQUIRED])
+ ;;
+
android|gdi|null)
;;
@@ -1806,6 +1811,7 @@
AM_CONDITIONAL(HAVE_EGL_PLATFORM_X11, echo "$egl_platforms" | grep -q 'x11')
AM_CONDITIONAL(HAVE_EGL_PLATFORM_WAYLAND, echo "$egl_platforms" | grep -q 'wayland')
AM_CONDITIONAL(HAVE_EGL_PLATFORM_DRM, echo "$egl_platforms" | grep -q 'drm')
+AM_CONDITIONAL(HAVE_EGL_PLATFORM_SURFACELESS, echo "$egl_platforms" | grep -q 'surfaceless')
AM_CONDITIONAL(HAVE_EGL_PLATFORM_NULL, echo "$egl_platforms" | grep -q 'null')
AM_CONDITIONAL(HAVE_EGL_DRIVER_DRI2, test "x$HAVE_EGL_DRIVER_DRI2" != "x")