qemu: add a backported patch to fix egl-headless support

(From OE-Core rev: 7a2645575092684eec4bf7d96185f9e89141f4fe)

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 51 insertions, 0 deletions

diff --git a/meta/recipes-devtools/qemu/qemu/0001-egl-headless-add-egl_create_context.patch b/meta/recipes-devtools/qemu/qemu/0001-egl-headless-add-egl_create_context.patch
new file mode 100644
index 0000000000..d9326c017a
--- /dev/null
+++ b/meta/recipes-devtools/qemu/qemu/0001-egl-headless-add-egl_create_context.patch
@@ -0,0 +1,50 @@
+From 952e5d584f5aabe41298c278065fe628f3f7aa7a Mon Sep 17 00:00:00 2001
+From: Gerd Hoffmann <kraxel@redhat.com>
+Date: Thu, 29 Nov 2018 13:35:02 +0100
+Subject: [PATCH] egl-headless: add egl_create_context
+
+We must set the correct context (via eglMakeCurrent) before
+calling qemu_egl_create_context, so we need a thin wrapper and can't
+hook qemu_egl_create_context directly as ->dpy_gl_ctx_create callback.
+
+Reported-by: Frederik Carlier <frederik.carlier@quamotion.mobi>
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+Message-id: 20181129123502.30129-1-kraxel@redhat.com
+
+Upstream-Status: Backport [https://git.qemu.org/?p=qemu.git;a=commit;h=952e5d584f5aabe41298c278065fe628f3f7aa7a]
+Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
+---
+ ui/egl-headless.c | 10 +++++++++-
+ 1 file changed, 9 insertions(+), 1 deletion(-)
+
+diff --git a/ui/egl-headless.c b/ui/egl-headless.c
+index 4cf3bbc0e4..519e7bad32 100644
+--- a/ui/egl-headless.c
++++ b/ui/egl-headless.c
+@@ -38,6 +38,14 @@ static void egl_gfx_switch(DisplayChangeListener *dcl,
+     edpy->ds = new_surface;
+ }
+ 
++static QEMUGLContext egl_create_context(DisplayChangeListener *dcl,
++                                        QEMUGLParams *params)
++{
++    eglMakeCurrent(qemu_egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
++                   qemu_egl_rn_ctx);
++    return qemu_egl_create_context(dcl, params);
++}
++
+ static void egl_scanout_disable(DisplayChangeListener *dcl)
+ {
+     egl_dpy *edpy = container_of(dcl, egl_dpy, dcl);
+@@ -150,7 +158,7 @@ static const DisplayChangeListenerOps egl_ops = {
+     .dpy_gfx_update          = egl_gfx_update,
+     .dpy_gfx_switch          = egl_gfx_switch,
+ 
+-    .dpy_gl_ctx_create       = qemu_egl_create_context,
++    .dpy_gl_ctx_create       = egl_create_context,
+     .dpy_gl_ctx_destroy      = qemu_egl_destroy_context,
+     .dpy_gl_ctx_make_current = qemu_egl_make_context_current,
+     .dpy_gl_ctx_get_current  = qemu_egl_get_current_context,
+-- 
+2.17.1
+
diff --git a/meta/recipes-devtools/qemu/qemu_3.1.0.bb b/meta/recipes-devtools/qemu/qemu_3.1.0.bb
index cd7cd67a3f..ea4277edde 100644
--- a/meta/recipes-devtools/qemu/qemu_3.1.0.bb
+++ b/meta/recipes-devtools/qemu/qemu_3.1.0.bb
@@ -22,6 +22,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \
            file://0010-linux-user-Fix-webkitgtk-hangs-on-32-bit-x86-target.patch \
            file://0011-Revert-linux-user-fix-mmap-munmap-mprotect-mremap-sh.patch \
            file://0001-Add-a-missing-X11-include.patch \
+           file://0001-egl-headless-add-egl_create_context.patch \
            "
 UPSTREAM_CHECK_REGEX = "qemu-(?P<pver>\d+(\.\d+)+)\.tar"