mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-07-02 04:35:55 +00:00
Code Issues 1 Projects Releases Wiki Activity

d3d11videosink: Use GPU memory copy if possible

Browse source 
Even if fallback buffer is required (e.g., shader resource view is unavailable),
use direct GPU memory copy if possible. It must be much faster than
system memory copy approach.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1339>
This commit is contained in:
Seungha Yang 2020-06-12 20:11:29 +09:00 committed by GStreamer Merge Bot
parent 73b39407a6
commit b5c8889d4f
1 changed files with 51 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

53
sys/d3d11/gstd3d11videosink.c
View file

@ -784,6 +784,45 @@ invalid_buffer:
}
}
static gboolean
gst_d3d11_video_sink_copy_d3d11_to_d3d11 (GstD3D11VideoSink * self,
GstBuffer * inbuf, GstBuffer * outbuf)
{
gint i;
ID3D11DeviceContext *context_handle =
gst_d3d11_device_get_device_context_handle (self->device);
g_return_val_if_fail (gst_buffer_n_memory (inbuf) ==
gst_buffer_n_memory (outbuf), FALSE);
GST_LOG_OBJECT (self, "Copy to fallback buffer using device memory copy");
gst_d3d11_device_lock (self->device);
for (i = 0; i < gst_buffer_n_memory (inbuf); i++) {
GstD3D11Memory *in_mem =
(GstD3D11Memory *) gst_buffer_peek_memory (inbuf, i);
GstD3D11Memory *out_mem =
(GstD3D11Memory *) gst_buffer_peek_memory (outbuf, i);
D3D11_BOX src_box;
/* input buffer might be larger than render size */
src_box.left = 0;
src_box.top = 0;
src_box.front = 0;
src_box.back = 1;
src_box.right = out_mem->desc.Width;
src_box.bottom = out_mem->desc.Height;
ID3D11DeviceContext_CopySubresourceRegion (context_handle,
(ID3D11Resource *) out_mem->texture, 0, 0, 0, 0,
(ID3D11Resource *) in_mem->texture, in_mem->subresource_index,
&src_box);
}
gst_d3d11_device_unlock (self->device);
return TRUE;
}
static GstFlowReturn
gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf)
{
@ -793,6 +832,7 @@ gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf)
GstVideoRectangle rect = { 0, };
GstBuffer *render_buf;
gboolean need_unref = FALSE;
gboolean do_device_copy = TRUE;
gint i;
render_buf = buf;
@ -805,6 +845,7 @@ gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf)
if (!gst_is_d3d11_memory (mem)) {
GST_LOG_OBJECT (sink, "not a d3d11 memory, need fallback");
render_buf = NULL;
do_device_copy = FALSE;
break;
}
@ -812,6 +853,7 @@ gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf)
if (dmem->device != self->device) {
GST_LOG_OBJECT (sink, "different d3d11 device, need fallback");
render_buf = NULL;
do_device_copy = FALSE;
break;
}
@ -834,7 +876,7 @@ gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf)
GST_LOG_OBJECT (sink,
"shader resource view is unavailable, need fallback");
render_buf = NULL;
break;
/* keep run loop in order to upload staging memory to device memory */
}
}
@ -860,7 +902,14 @@ gst_d3d11_video_sink_show_frame (GstVideoSink * sink, GstBuffer * buf)
}
}
if (!gst_d3d11_video_sink_upload_frame (self, buf, render_buf)) {
if (do_device_copy) {
if (!gst_d3d11_video_sink_copy_d3d11_to_d3d11 (self, buf, render_buf)) {
GST_ERROR_OBJECT (self, "cannot copy frame");
gst_buffer_unref (render_buf);
return GST_FLOW_ERROR;
}
} else if (!gst_d3d11_video_sink_upload_frame (self, buf, render_buf)) {
GST_ERROR_OBJECT (self, "cannot upload frame");
gst_buffer_unref (render_buf);