[Mesa-dev] [PATCH] st/vdpau: use bicubic filter for scaling

Nayan Deshmukh nayan26deshmukh at gmail.com
Tue Jun 21 17:26:14 UTC 2016


use bicubic filtering as high quality scaling L1.

v2: fix a typo and add a newline to code

v3: -render the unscaled image on a temporary surface
    -apply noise reduction and sharpness filter on
     unscaled surface
    -render the final scaled surface using bicubic
     interpolation

Signed-off-by: Nayan Deshmukh <nayan26deshmukh at gmail.com>
---
 src/gallium/state_trackers/vdpau/mixer.c         | 109 ++++++++++++++++++++---
 src/gallium/state_trackers/vdpau/vdpau_private.h |   6 ++
 2 files changed, 101 insertions(+), 14 deletions(-)

diff --git a/src/gallium/state_trackers/vdpau/mixer.c b/src/gallium/state_trackers/vdpau/mixer.c
index 65c3ce2..2a67ac2 100644
--- a/src/gallium/state_trackers/vdpau/mixer.c
+++ b/src/gallium/state_trackers/vdpau/mixer.c
@@ -82,7 +82,6 @@ vlVdpVideoMixerCreate(VdpDevice device,
       switch (features[i]) {
       /* they are valid, but we doesn't support them */
       case VDP_VIDEO_MIXER_FEATURE_DEINTERLACE_TEMPORAL_SPATIAL:
-      case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L1:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L2:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L3:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L4:
@@ -110,6 +109,9 @@ vlVdpVideoMixerCreate(VdpDevice device,
          vmixer->luma_key.supported = true;
          break;
 
+      case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L1:
+         vmixer->bicubic.supported = true;
+         break;
       default: goto no_params;
       }
    }
@@ -202,6 +204,11 @@ vlVdpVideoMixerDestroy(VdpVideoMixer mixer)
       vl_matrix_filter_cleanup(vmixer->sharpness.filter);
       FREE(vmixer->sharpness.filter);
    }
+
+   if (vmixer->bicubic.filter) {
+      vl_bicubic_filter_cleanup(vmixer->bicubic.filter);
+      FREE(vmixer->bicubic.filter);
+   }
    pipe_mutex_unlock(vmixer->device->mutex);
    DeviceReference(&vmixer->device, NULL);
 
@@ -230,9 +237,11 @@ VdpStatus vlVdpVideoMixerRender(VdpVideoMixer mixer,
                                 VdpLayer const *layers)
 {
    enum vl_compositor_deinterlace deinterlace;
-   struct u_rect rect, clip, *prect;
+   struct u_rect rect, clip, *prect, *rect_temp, dirty_area, temp;
    unsigned i, layer = 0;
    struct pipe_video_buffer *video_buffer;
+   struct pipe_sampler_view *sampler_view;
+   struct pipe_surface *surface;
 
    vlVdpVideoMixer *vmixer;
    vlVdpSurface *surf;
@@ -324,8 +333,48 @@ VdpStatus vlVdpVideoMixerRender(VdpVideoMixer mixer,
       rect.y1 = surf->templat.height;
       prect = ▭
    }
+
+   if(vmixer->bicubic.filter){
+      struct pipe_context *pipe;
+      struct pipe_resource res_tmpl, *res;
+      struct pipe_sampler_view sv_templ;
+      struct pipe_surface surf_templ;
+
+      pipe = vmixer->device->context;
+      memset(&res_tmpl, 0, sizeof(res_tmpl));
+
+      res_tmpl.target = PIPE_TEXTURE_2D;
+      res_tmpl.format = surf->templat.chroma_format;
+      res_tmpl.width0 = surf->templat.width;
+      res_tmpl.height0 = surf->templat.height;
+      res_tmpl.depth0 = 1;
+      res_tmpl.array_size = 1;
+      res_tmpl.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET |
+                     PIPE_BIND_LINEAR | PIPE_BIND_SHARED;
+      res_tmpl.usage = PIPE_USAGE_DEFAULT;
+
+      res = pipe->screen->resource_create(pipe->screen, &res_tmpl);
+
+      vlVdpDefaultSamplerViewTemplate(&sv_templ, res);
+      sampler_view = pipe->create_sampler_view(pipe, res, &sv_templ);
+
+      memset(&surf_templ, 0, sizeof(surf_templ));
+      surf_templ.format = res->format;
+      surface = pipe->create_surface(pipe, res, &surf_templ);
+
+      vl_compositor_reset_dirty_area(&dirty_area);
+      rect_temp = prect;
+   }
+
+   else{
+       surface = dst->surface;
+       sampler_view = dst->sampler_view;
+       rect_temp = RectToPipe(destination_video_rect, &temp);
+       dirty_area = dst->dirty_area;
+   }
+
    vl_compositor_set_buffer_layer(&vmixer->cstate, compositor, layer, video_buffer, prect, NULL, deinterlace);
-   vl_compositor_set_layer_dst_area(&vmixer->cstate, layer++, RectToPipe(destination_video_rect, &rect));
+   vl_compositor_set_layer_dst_area(&vmixer->cstate, layer++, rect_temp);
 
    for (i = 0; i < layer_count; ++i) {
       vlVdpOutputSurface *src = vlGetDataHTAB(layers->source_surface);
@@ -343,22 +392,22 @@ VdpStatus vlVdpVideoMixerRender(VdpVideoMixer mixer,
       ++layers;
    }
 
-   vl_compositor_set_dst_clip(&vmixer->cstate, RectToPipe(destination_rect, &clip));
-   if (!vmixer->noise_reduction.filter && !vmixer->sharpness.filter)
+   if (!vmixer->noise_reduction.filter && !vmixer->sharpness.filter && !vmixer->bicubic.filter)
       vlVdpSave4DelayedRendering(vmixer->device, destination_surface, &vmixer->cstate);
    else {
-      vl_compositor_render(&vmixer->cstate, compositor, dst->surface, &dst->dirty_area, true);
+      vl_compositor_render(&vmixer->cstate, compositor, surface, &dirty_area, true);
 
-      /* applying the noise reduction after scaling is actually not very
-         clever, but currently we should avoid to copy around the image
-         data once more. */
       if (vmixer->noise_reduction.filter)
          vl_median_filter_render(vmixer->noise_reduction.filter,
-                                 dst->sampler_view, dst->surface);
+                                 sampler_view, surface);
 
       if (vmixer->sharpness.filter)
          vl_matrix_filter_render(vmixer->sharpness.filter,
-                                 dst->sampler_view, dst->surface);
+                                 sampler_view, surface);
+
+      if (vmixer->bicubic.filter)
+         vl_bicubic_filter_render(vmixer->bicubic.filter,
+                                 sampler_view, dst->surface);
    }
    pipe_mutex_unlock(vmixer->device->mutex);
 
@@ -461,6 +510,28 @@ vlVdpVideoMixerUpdateSharpnessFilter(vlVdpVideoMixer *vmixer)
 }
 
 /**
+ * Update the bicubic filter
+ */
+static void
+vlVdpVideoMixerUpdateBicubicFilter(vlVdpVideoMixer *vmixer)
+{
+   assert(vmixer);
+
+   /* if present remove the old filter first */
+   if (vmixer->bicubic.filter) {
+      vl_bicubic_filter_cleanup(vmixer->bicubic.filter);
+      FREE(vmixer->bicubic.filter);
+      vmixer->bicubic.filter = NULL;
+   }
+   /* and create a new filter as needed */
+   if (vmixer->bicubic.enabled) {
+      vmixer->bicubic.filter = MALLOC(sizeof(struct vl_bicubic_filter));
+      vl_bicubic_filter_init(vmixer->bicubic.filter, vmixer->device->context,
+                            vmixer->video_width, vmixer->video_height);
+   }
+}
+
+/**
  * Retrieve whether features were requested at creation time.
  */
 VdpStatus
@@ -483,7 +554,6 @@ vlVdpVideoMixerGetFeatureSupport(VdpVideoMixer mixer,
       switch (features[i]) {
       /* they are valid, but we doesn't support them */
       case VDP_VIDEO_MIXER_FEATURE_DEINTERLACE_TEMPORAL_SPATIAL:
-      case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L1:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L2:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L3:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L4:
@@ -512,6 +582,10 @@ vlVdpVideoMixerGetFeatureSupport(VdpVideoMixer mixer,
          feature_supports[i] = vmixer->luma_key.supported;
          break;
 
+      case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L1:
+         feature_supports[i] = vmixer->bicubic.supported;
+         break;
+
       default:
          return VDP_STATUS_INVALID_VIDEO_MIXER_FEATURE;
       }
@@ -544,7 +618,6 @@ vlVdpVideoMixerSetFeatureEnables(VdpVideoMixer mixer,
       switch (features[i]) {
       /* they are valid, but we doesn't support them */
       case VDP_VIDEO_MIXER_FEATURE_DEINTERLACE_TEMPORAL_SPATIAL:
-      case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L1:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L2:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L3:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L4:
@@ -578,6 +651,11 @@ vlVdpVideoMixerSetFeatureEnables(VdpVideoMixer mixer,
                                          vmixer->luma_key.luma_min, vmixer->luma_key.luma_max);
          break;
 
+      case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L1:
+         vmixer->bicubic.enabled = feature_enables[i];
+         vlVdpVideoMixerUpdateBicubicFilter(vmixer);
+         break;
+
       default:
          pipe_mutex_unlock(vmixer->device->mutex);
          return VDP_STATUS_INVALID_VIDEO_MIXER_FEATURE;
@@ -612,7 +690,6 @@ vlVdpVideoMixerGetFeatureEnables(VdpVideoMixer mixer,
       /* they are valid, but we doesn't support them */
       case VDP_VIDEO_MIXER_FEATURE_DEINTERLACE_TEMPORAL:
       case VDP_VIDEO_MIXER_FEATURE_DEINTERLACE_TEMPORAL_SPATIAL:
-      case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L1:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L2:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L3:
       case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L4:
@@ -636,6 +713,10 @@ vlVdpVideoMixerGetFeatureEnables(VdpVideoMixer mixer,
          feature_enables[i] = vmixer->luma_key.enabled;
          break;
 
+      case VDP_VIDEO_MIXER_FEATURE_HIGH_QUALITY_SCALING_L1:
+         feature_enables[i] = vmixer->bicubic.enabled;
+         break;
+
       default:
          return VDP_STATUS_INVALID_VIDEO_MIXER_FEATURE;
       }
diff --git a/src/gallium/state_trackers/vdpau/vdpau_private.h b/src/gallium/state_trackers/vdpau/vdpau_private.h
index 8673c6a..bcd4bb1 100644
--- a/src/gallium/state_trackers/vdpau/vdpau_private.h
+++ b/src/gallium/state_trackers/vdpau/vdpau_private.h
@@ -45,6 +45,7 @@
 #include "os/os_thread.h"
 
 #include "vl/vl_video_buffer.h"
+#include "vl/vl_bicubic_filter.h"
 #include "vl/vl_compositor.h"
 #include "vl/vl_csc.h"
 #include "vl/vl_deint_filter.h"
@@ -373,6 +374,11 @@ typedef struct
    } deint;
 
    struct {
+	  bool supported, enabled;
+	  struct vl_bicubic_filter *filter;
+   } bicubic;
+
+   struct {
       bool supported, enabled;
       unsigned level;
       struct vl_median_filter *filter;
-- 
2.5.5



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