d3d12: implementation for get_resources()

Reviewed-by: Jesse Natalie <jenatali@microsoft.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23159>

diff --git a/src/gallium/drivers/d3d12/d3d12_video_buffer.cpp b/src/gallium/drivers/d3d12/d3d12_video_buffer.cpp
index 24872be..62a1d27 100644 (file)
--- a/src/gallium/drivers/d3d12/d3d12_video_buffer.cpp
+++ b/src/gallium/drivers/d3d12/d3d12_video_buffer.cpp
@@ -62,6 +62,7 @@ d3d12_video_buffer_create_impl(struct pipe_context *pipe,
 
    // Fill vtable
    pD3D12VideoBuffer->base.destroy                     = d3d12_video_buffer_destroy;
+   pD3D12VideoBuffer->base.get_resources               = d3d12_video_buffer_resources;
    pD3D12VideoBuffer->base.get_sampler_view_planes     = d3d12_video_buffer_get_sampler_view_planes;
    pD3D12VideoBuffer->base.get_sampler_view_components = d3d12_video_buffer_get_sampler_view_components;
    pD3D12VideoBuffer->base.get_surfaces                = d3d12_video_buffer_get_surfaces;
@@ -234,6 +235,32 @@ error:
 }
 
 /**
+ * get an individual resource for each plane,
+ * only returns existing resources by reference
+ */
+void
+d3d12_video_buffer_resources(struct pipe_video_buffer *buffer,
+                             struct pipe_resource **resources)
+{
+   struct d3d12_video_buffer *pD3D12VideoBuffer = (struct d3d12_video_buffer *) buffer;
+   assert(pD3D12VideoBuffer);
+
+   // pCurPlaneResource refers to the planar resource, not the overall resource.
+   // in d3d12_resource this is handled by having a linked list of planes with
+   // d3dRes->base.next ptr to next plane resource
+   // starting with the plane 0 being the overall resource
+   struct pipe_resource *pCurPlaneResource = &pD3D12VideoBuffer->texture->base.b;
+
+   for (uint i = 0; i < pD3D12VideoBuffer->num_planes; ++i) {
+      assert(pCurPlaneResource); // the d3d12_resource has a linked list with the exact name of number of elements
+                                 // as planes
+
+      resources[i] = pCurPlaneResource;
+      pCurPlaneResource = pCurPlaneResource->next;
+   }
+}
+
+/**
  * get an individual sampler view for each plane
  */
 struct pipe_sampler_view **

diff --git a/src/gallium/drivers/d3d12/d3d12_video_buffer.h b/src/gallium/drivers/d3d12/d3d12_video_buffer.h
index 292ac12..c608b99 100644 (file)
--- a/src/gallium/drivers/d3d12/d3d12_video_buffer.h
+++ b/src/gallium/drivers/d3d12/d3d12_video_buffer.h
@@ -54,6 +54,14 @@ void
 d3d12_video_buffer_destroy(struct pipe_video_buffer *buffer);
 
 /**
+ * get an individual resource for each plane,
+ * only returns existing resources by reference
+ */
+void
+d3d12_video_buffer_resources(struct pipe_video_buffer *buffer,
+                             struct pipe_resource **resources);
+
+/**
  * get an individual sampler view for each plane
  */
 struct pipe_sampler_view **