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d3d11window: Fix for broken dirty rect drawing on Windows 7

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DXGI_SWAP_EFFECT_DISCARD cannot be used with dirty rect drawing feature
of IDXGISwapChain1::Present().
Note that IDXGISwapChain1 interface is available on Platform Update for Windows 7
and DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL is also the case.
This commit is contained in:
Seungha Yang 2020-02-12 22:29:31 +09:00
parent 4383b387b7
commit f6cdb91f55
1 changed files with 6 additions and 5 deletions
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11
sys/d3d11/gstd3d11window_win32.cpp
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@ -717,13 +717,9 @@ gst_d3d11_window_win32_create_swap_chain (GstD3D11Window * window,
{
GstD3D11WindowWin32 *self = GST_D3D11_WINDOW_WIN32 (window);
DXGI_SWAP_CHAIN_DESC desc = { 0, };
DXGI_SWAP_EFFECT swap_effect = DXGI_SWAP_EFFECT_DISCARD;
IDXGISwapChain *new_swapchain = NULL;
GstD3D11Device *device = window->device;
if (gst_d3d11_is_windows_8_or_greater ())
swap_effect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
self->have_swapchain1 = FALSE;
#if (DXGI_HEADER_VERSION >= 2)
@ -744,7 +740,7 @@ gst_d3d11_window_win32_create_swap_chain (GstD3D11Window * window,
* but Windows7 does not support this method */
if (gst_d3d11_is_windows_8_or_greater ())
desc1.Scaling = DXGI_SCALING_NONE;
desc1.SwapEffect = swap_effect;
desc1.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
desc1.AlphaMode = DXGI_ALPHA_MODE_UNSPECIFIED;
desc1.Flags = swapchain_flags;
@ -761,6 +757,11 @@ gst_d3d11_window_win32_create_swap_chain (GstD3D11Window * window,
#endif
if (!new_swapchain) {
DXGI_SWAP_EFFECT swap_effect = DXGI_SWAP_EFFECT_DISCARD;
if (gst_d3d11_is_windows_8_or_greater ())
swap_effect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
/* we will get client area at on_resize */
desc.BufferDesc.Width = 0;
desc.BufferDesc.Height = 0;