[Mesa-dev] [PATCH 06/11] st/va: add copy function for yv12 image to nv12 surface

[Boyuan Zhang]

Add function to copy from yv12 image to nv12 surface for VAAPI putimage call. Existing function only work for copying from yv12 surface to nv12 image.

Signed-off-by: Boyuan Zhang <boyuan.zhang at amd.com>
---
 src/gallium/auxiliary/util/u_video.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/src/gallium/auxiliary/util/u_video.h b/src/gallium/auxiliary/util/u_video.h
index 9196afc..6e835d8 100644
--- a/src/gallium/auxiliary/util/u_video.h
+++ b/src/gallium/auxiliary/util/u_video.h
@@ -130,6 +130,28 @@ 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 k = 0; k < (offset[1]/2) ; k++){
+		   if (odd == false) {
+               dest[k] = src[field][k/2];
+               odd = true;
+		   }
+		   else {
+               dest[k] = src[field+1][k/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