mesa: add libva support and add upstream patch

packages/graphics/mesa/package.mk

@@ -68,6 +68,13 @@ else
   MESA_VDPAU="--disable-vdpau"
 fi
 
+if [ "$VAAPI_SUPPORT" = "yes" ]; then
+  PKG_DEPENDS_TARGET="$PKG_DEPENDS_TARGET libva"
+  MESA_VAAPI="--enable-va"
+else
+  MESA_VAAPI="--disable-va"
+fi
+
 XA_CONFIG="--disable-xa"
 for drv in $GRAPHIC_DRIVERS; do
   [ "$drv" = "vmware" ] && XA_CONFIG="--enable-xa"
@@ -103,7 +110,7 @@ PKG_CONFIGURE_OPTS_TARGET="CC_FOR_BUILD=$HOST_CC \
                            --disable-xvmc \
                            $MESA_VDPAU \
                            --disable-omx-bellagio \
-                           --disable-va \
+                           $MESA_VAAPI \
                            --disable-opencl \
                            --enable-opencl-icd \
                            --disable-gallium-tests \

packages/graphics/mesa/patches/mesa-0001-add-vlVaExportSurfaceHandle.patch

@@ -0,0 +1,39 @@
+
+ src/gallium/state_trackers/va/context.c | 8 +++++++-
+ src/gallium/state_trackers/va/surface.c | 2 +-
+ 2 files changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/src/gallium/state_trackers/va/context.c b/src/gallium/state_trackers/va/context.c
+index 78e1f19ab7..c4abe77cf7 100644
+--- a/src/gallium/state_trackers/va/context.c
++++ b/src/gallium/state_trackers/va/context.c
+@@ -89,7 +89,13 @@ static struct VADriverVTable vtable =
+    &vlVaQuerySurfaceAttributes,
+    &vlVaAcquireBufferHandle,
+    &vlVaReleaseBufferHandle,
+-#if 0
++#if VA_CHECK_VERSION(1, 1, 0)
++   NULL, /* vaCreateMFContext */
++   NULL, /* vaMFAddContext */
++   NULL, /* vaMFReleaseContext */
++   NULL, /* vaMFSubmit */
++   NULL, /* vaCreateBuffer2 */
++   NULL, /* vaQueryProcessingRate */
+    &vlVaExportSurfaceHandle,
+ #endif
+ };
+diff --git a/src/gallium/state_trackers/va/surface.c b/src/gallium/state_trackers/va/surface.c
+index 636505b720..f9412ce52e 100644
+--- a/src/gallium/state_trackers/va/surface.c
++++ b/src/gallium/state_trackers/va/surface.c
+@@ -923,7 +923,7 @@ vlVaQueryVideoProcPipelineCaps(VADriverContextP ctx, VAContextID context,
+    return VA_STATUS_SUCCESS;
+ }
+ 
+-#if 0
++#if VA_CHECK_VERSION(1, 1, 0)
+ VAStatus
+ vlVaExportSurfaceHandle(VADriverContextP ctx,
+                         VASurfaceID surface_id,
+-- 
+2.11.0