[Mesa-dev] [PATCH 06/12] vl/util: add copy func for yv12image to nv12surface

[Boyuan Zhang]

Add function to copy from yv12 image to nv12 surface for VAAPI putimage call. We need this function in VaPutImage call where copying from yv12 image to nv12 surface for encoding. Existing function can't be used because it only work for copying from yv12 surface to nv12 image in Vaapi.

Signed-off-by: Boyuan Zhang <boyuan.zhang at amd.com>
---
 src/gallium/auxiliary/util/u_video.h | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/src/gallium/auxiliary/util/u_video.h b/src/gallium/auxiliary/util/u_video.h
index 9196afc..d147295 100644
--- a/src/gallium/auxiliary/util/u_video.h
+++ b/src/gallium/auxiliary/util/u_video.h
@@ -130,6 +130,29 @@ u_copy_yv12_to_nv12(void *const *destination_data,
 }
 
 static inline void
+u_copy_yv12_img_to_nv12_surf(uint8_t *const *src,
+                             uint8_t *dest,
+                             int *offset,
+                             int field)
+{
+   if (field == 0) {
+      for (int i = 0; i < offset[1] ; i++)
+         dest[i] = src[field][i];
+   } else if (field == 1) {
+      bool odd = false;
+      for (int i = 0; i < (offset[1]/2) ; i++){
+         if (odd == false) {
+            dest[i] = src[field][i/2];
+            odd = true;
+         } else {
+            dest[i] = src[field+1][i/2];
+            odd = false;
+         }
+      }
+   }
+}
+
+static inline void
 u_copy_swap422_packed(void *const *destination_data,
                        uint32_t const *destination_pitches,
                        int src_plane, int src_field,
-- 
2.7.4