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d3d11videosink: Always clear back buffer on resize

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Swapchain may not need to be resized if the size of backbuffer
is equal to the previous size. Then previously rendered frame will be stay
on the screen. Do clear back buffer whenever resize() is called

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3342>
This commit is contained in:
Seungha Yang 2022-11-06 03:26:31 +09:00
parent c2f58cf2e3
commit b6309a569a
1 changed files with 5 additions and 0 deletions
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5
subprojects/gst-plugins-bad/sys/d3d11/gstd3d11window.cpp
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@ -290,6 +290,8 @@ gst_d3d11_window_on_resize_default (GstD3D11Window * window, guint width,
ID3D11Texture2D *backbuffer = NULL;
GstVideoRectangle src_rect, dst_rect, rst_rect;
IDXGISwapChain *swap_chain;
ID3D11DeviceContext *context;
const FLOAT clear_color[] = { 0.0, 0.0, 0.0, 1.0 };
gst_d3d11_device_lock (window->device);
if (!window->swap_chain)
@ -355,6 +357,9 @@ gst_d3d11_window_on_resize_default (GstD3D11Window * window, guint width,
goto done;
}
context = gst_d3d11_device_get_device_context_handle (window->device);
context->ClearRenderTargetView (window->rtv, clear_color);
if (window->processor) {
D3D11_VIDEO_PROCESSOR_OUTPUT_VIEW_DESC pov_desc;