hwc: rgz: Workaround, do not blit if there is a video layer

This is a workaround for a performance degradation found while
a video is playing and the GC320 is used at the same time.
Avoid blitting if there is a NV12 layer in the hwc layer list.

Change-Id: I12e789b9dd95e8b0d435aac1ae67ff65d4511396
Signed-off-by: Gustavo Diaz Prado <a0273371@ti.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/hwc/rgz_2d.c b/hwc/rgz_2d.c
index 5a74377..9da80e5 100644
--- a/hwc/rgz_2d.c
+++ b/hwc/rgz_2d.c
@@ -656,6 +656,15 @@ static int rgz_in_hwccheck(rgz_in_params_t *p, rgz_t *rgz)
      */
     int l, memidx = 0;
     for (l = 0; l < layerno; l++) {
+        /*
+         * Workaround: If a NV12 layer is present in the list, don't even try
+         * to blit. There is a performance degradation while playing video and
+         * using GC at the same time.
+         */
+        IMG_native_handle_t *handle = (IMG_native_handle_t *)layers[l].handle;
+        if (!(layers[l].flags & HWC_SKIP_LAYER) && handle && is_NV12(handle->iFormat))
+            return -1;
+
         if (layers[l].compositionType == HWC_OVERLAY)
             memidx++;
     }