Module: Mesa
Branch: master
Commit: 169c077d1d10db9e4938bae193fbd14b25cc5795
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=169c077d1d10db9e4938bae193fbd14b25cc5795

Author: Leo Liu <[email protected]>
Date:   Tue Sep 19 13:00:15 2017 -0400

st/va/postproc: use progressive target buffer for scaling

Scaling between interlaced buffers, esp. for scale-up, because
blit will scale up top filed and bottom field separately. it'll
result in the weaving for these buffer with lack of accuracy.
So use shader deint for the case.

Acked-by: Christian König <[email protected]>

---

 src/gallium/state_trackers/va/postproc.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/gallium/state_trackers/va/postproc.c 
b/src/gallium/state_trackers/va/postproc.c
index 4449126316..d3eafe9b53 100644
--- a/src/gallium/state_trackers/va/postproc.c
+++ b/src/gallium/state_trackers/va/postproc.c
@@ -118,15 +118,33 @@ static VAStatus vlVaPostProcBlit(vlVaDriver *drv, 
vlVaContext *context,
    struct pipe_surface **dst_surfaces;
    struct u_rect src_rect;
    struct u_rect dst_rect;
+   bool scale = false;
    unsigned i;
 
    if (src->interlaced != dst->interlaced && dst->interlaced)
       return VA_STATUS_ERROR_INVALID_SURFACE;
 
+   if ((src->width != dst->width || src->height != dst->height) &&
+       (src->interlaced && dst->interlaced))
+      scale = true;
+
    src_surfaces = src->get_surfaces(src);
    if (!src_surfaces || !src_surfaces[0])
       return VA_STATUS_ERROR_INVALID_SURFACE;
 
+   if (scale) {
+      vlVaSurface *surf;
+
+      surf = handle_table_get(drv->htab, context->target_id);
+      surf->templat.interlaced = false;
+      dst->destroy(dst);
+
+      if (vlVaHandleSurfaceAllocate(drv, surf, &surf->templat) != 
VA_STATUS_SUCCESS)
+         return VA_STATUS_ERROR_ALLOCATION_FAILED;
+
+      dst = context->target = surf->buffer;
+   }
+
    dst_surfaces = dst->get_surfaces(dst);
    if (!dst_surfaces || !dst_surfaces[0])
       return VA_STATUS_ERROR_INVALID_SURFACE;

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