Commit graph

8 commits

Author SHA1 Message Date
Seungha Yang
90181642a3 d3d11decoder: Resurrect zero-copy for fixed-size DPB pool
Enable zero-copy if downstream proposed pool and therefore decoder
can know the amount of buffer required by downstream.
Otherwise decoder will copy when our DPB pool has no sufficient
buffers for later decoding operation.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2097>
2021-03-24 15:44:42 +00:00
Seungha Yang
39b9f79e11 d3d11: Implement memory pool
Major changes:
* GstD3D11Allocator: This allocator is now device-independent object
  which can allocate GstD3D11Memory object for any GstD3D11Device.
  User can get this object via gst_allocator_find(GST_D3D11_MEMORY_NAME)
* GstD3D11PoolAllocator: A new allocator implementation for texture pool.
  From now on GstD3D11BufferPool will make use of this memory pool allocator
  to avoid frequent texture reallocation. That usually happens because
  of buffer copy (gst_buffer_make_writable for example)

In addition to that, GstD3D11BufferPool will provide GstBuffer with
GstVideoMeta, because CPU access to a GstD3D11Memory without GstVideoMeta
is almost impossible since GPU drivers needs padding for stride alignment.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2097>
2021-03-24 15:44:42 +00:00
Seungha Yang
4e7e390cab d3d11decoder: Temporarily remove zero-copy related code
We will re-implement it based on memory pool

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2097>
2021-03-24 15:44:42 +00:00
Seungha Yang
824b0ce0f4 Revert "d3d11: Enable native multi-thread protection layer and make use of it"
This reverts commit 872b7f503c.

Native multi-thread protection layer seems to be consuming more CPU
resource than application side protection approach in some cases

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2095>
2021-03-20 17:53:58 +09:00
Seungha Yang
872b7f503c d3d11: Enable native multi-thread protection layer and make use of it
... instead of our own GRecMutex locking. In this way, any other
Direct3D11 client (MediaFoundation for example) can safely call
any Direct3D11 API even when we are sharing our Direct3D11 device
with others.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2092>
2021-03-18 16:37:37 +00:00
Seungha Yang
646c34794f d3d11memory: Fix for wrong texture_array_size returns
Fix mismatched return values

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2051>
2021-03-02 23:10:46 +09:00
Seungha Yang
12baab442c d3d11memory: Add a method for querying texture array size
... and the number of textures in use.

Direct3D11 texture array is usually used for decoder DPB pool,
and d3d11 decoder elements might want to know
whether there's available texture resource or not.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2003>
2021-02-03 20:46:22 +00:00
Seungha Yang
0f7af4b143 d3d11: Move core methods to gst-libs
Move d3d11 device, memory, buffer pool and minimal method
to gst-libs so that other plugins can access d3d11 resource.
Since Direct3D is primary graphics API on Windows, we need
this infrastructure for various plugins can share GPU resource
without downloading GPU memory.
Note that this implementation is public only for -bad scope
for now.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/464>
2021-01-13 15:01:20 +00:00
Renamed from sys/d3d11/gstd3d11memory.c (Browse further)