gstreamer/sys/d3d11/gstd3d11window_corewindow.cpp

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/*
* GStreamer
* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstd3d11window.h"
#include "gstd3d11device.h"
#include "gstd3d11memory.h"
#include "gstd3d11utils.h"
#include "gstd3d11window_corewindow.h"
/* workaround for GetCurrentTime collision */
#ifdef GetCurrentTime
#undef GetCurrentTime
#endif
#include <windows.ui.xaml.h>
#include <windows.ui.xaml.media.dxinterop.h>
#include <windows.applicationmodel.core.h>
#include <wrl.h>
#include <wrl/wrappers/corewrappers.h>
#include <windows.graphics.display.h>
using namespace Microsoft::WRL;
using namespace Microsoft::WRL::Wrappers;
using namespace ABI::Windows::UI;
using namespace ABI::Windows::Foundation;
using namespace ABI::Windows::Foundation::Collections;
using namespace ABI::Windows::Graphics;
typedef ABI::Windows::Foundation::
__FITypedEventHandler_2_Windows__CUI__CCore__CCoreWindow_Windows__CUI__CCore__CWindowSizeChangedEventArgs_t
IWindowSizeChangedEventHandler;
extern "C" {
GST_DEBUG_CATEGORY_EXTERN (gst_d3d11_window_debug);
#define GST_CAT_DEFAULT gst_d3d11_window_debug
}
/* timeout to wait busy UI thread */
#define DEFAULT_ASYNC_TIMEOUT (5 * 1000)
typedef struct _CoreWindowWinRTStorage
{
ComPtr<Core::ICoreWindow> core_window;
ComPtr<Core::ICoreDispatcher> dispatcher;
HANDLE cancellable;
EventRegistrationToken event_token;
} CoreWindowWinRTStorage;
struct _GstD3D11WindowCoreWindow
{
GstD3D11Window parent;
CoreWindowWinRTStorage *storage;
};
#define gst_d3d11_window_core_window_parent_class parent_class
G_DEFINE_TYPE (GstD3D11WindowCoreWindow, gst_d3d11_window_core_window,
GST_TYPE_D3D11_WINDOW);
static void gst_d3d11_window_core_window_constructed (GObject * object);
static void gst_d3d11_window_core_window_dispose (GObject * object);
static void gst_d3d11_window_core_window_update_swap_chain (GstD3D11Window * window);
static void
gst_d3d11_window_core_window_change_fullscreen_mode (GstD3D11Window * window);
static gboolean
gst_d3d11_window_core_window_create_swap_chain (GstD3D11Window * window,
DXGI_FORMAT format, guint width, guint height, guint swapchain_flags,
IDXGISwapChain ** swap_chain);
static GstFlowReturn
gst_d3d11_window_core_window_present (GstD3D11Window * window,
guint present_flags);
static gboolean
gst_d3d11_window_core_window_unlock (GstD3D11Window * window);
static gboolean
gst_d3d11_window_core_window_unlock_stop (GstD3D11Window * window);
static void
gst_d3d11_window_core_window_on_resize (GstD3D11Window * window,
guint width, guint height);
static void
gst_d3d11_window_core_window_on_resize_sync (GstD3D11Window * window);
static void
gst_d3d11_window_core_window_unprepare (GstD3D11Window * window);
static float
get_logical_dpi (void)
{
ComPtr<Display::IDisplayPropertiesStatics> properties;
HRESULT hr;
HStringReference str_ref =
HStringReference (RuntimeClass_Windows_Graphics_Display_DisplayProperties);
hr = GetActivationFactory (str_ref.Get(), properties.GetAddressOf());
if (gst_d3d11_result (hr, NULL)) {
float dpi = 96.0f;
hr = properties->get_LogicalDpi (&dpi);
if (gst_d3d11_result (hr, NULL))
return dpi;
}
return 96.0f;
}
static inline float dip_to_pixel (float dip)
{
/* https://docs.microsoft.com/en-us/windows/win32/learnwin32/dpi-and-device-independent-pixels */
return dip * get_logical_dpi() / 96.0f;
}
class CoreResizeHandler
: public RuntimeClass<RuntimeClassFlags<ClassicCom>,
IWindowSizeChangedEventHandler>
{
public:
CoreResizeHandler () {}
HRESULT RuntimeClassInitialize (GstD3D11Window * listener)
{
if (!listener)
return E_INVALIDARG;
window = listener;
return S_OK;
}
IFACEMETHOD(Invoke)
(Core::ICoreWindow * sender, Core::IWindowSizeChangedEventArgs * args)
{
if (window) {
Size new_size;
HRESULT hr = args->get_Size(&new_size);
if (gst_d3d11_result (hr, NULL)) {
guint width, height;
width = (guint) dip_to_pixel (new_size.Width);
height = (guint) dip_to_pixel (new_size.Height);
window->surface_width = width;
window->surface_height = height;
gst_d3d11_window_core_window_on_resize_sync (window);
}
}
return S_OK;
}
private:
GstD3D11Window * window;
};
template <typename CB>
static HRESULT
run_async (const ComPtr<Core::ICoreDispatcher> &dispatcher, HANDLE cancellable,
DWORD timeout, CB &&cb)
{
ComPtr<IAsyncAction> async_action;
HRESULT hr;
HRESULT async_hr;
boolean can_now;
DWORD wait_ret;
HANDLE event_handle[2];
hr = dispatcher->get_HasThreadAccess (&can_now);
if (!gst_d3d11_result (hr, NULL))
return hr;
if (can_now)
return cb ();
Event event (CreateEventEx (NULL, NULL, CREATE_EVENT_MANUAL_RESET,
EVENT_ALL_ACCESS));
if (!event.IsValid())
return E_FAIL;
auto handler =
Callback<Implements<RuntimeClassFlags<ClassicCom>,
Core::IDispatchedHandler, FtmBase>>([&async_hr, &cb, &event] {
async_hr = cb ();
SetEvent (event.Get());
return S_OK;
});
hr = dispatcher->RunAsync (Core::CoreDispatcherPriority_Normal, handler.Get(),
async_action.GetAddressOf());
if (!gst_d3d11_result (hr, NULL))
return hr;
event_handle[0] = event.Get();
event_handle[1] = cancellable;
wait_ret = WaitForMultipleObjects (2, event_handle, FALSE, timeout);
if (wait_ret != WAIT_OBJECT_0)
return E_FAIL;
return async_hr;
}
static HRESULT
get_window_size (const ComPtr<Core::ICoreDispatcher> &dispatcher,
HANDLE cancellable,
const ComPtr<Core::ICoreWindow> &window, Size *size)
{
return run_async (dispatcher, cancellable, DEFAULT_ASYNC_TIMEOUT,
[window, size] {
HRESULT hr;
Rect bounds;
hr = window->get_Bounds (&bounds);
if (gst_d3d11_result (hr, NULL)) {
size->Width = dip_to_pixel (bounds.Width);
size->Height = dip_to_pixel (bounds.Height);
}
return hr;
});
}
static void
gst_d3d11_window_core_window_class_init (GstD3D11WindowCoreWindowClass * klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
GstD3D11WindowClass *window_class = GST_D3D11_WINDOW_CLASS (klass);
gobject_class->constructed = gst_d3d11_window_core_window_constructed;
gobject_class->dispose = gst_d3d11_window_core_window_dispose;
window_class->update_swap_chain =
GST_DEBUG_FUNCPTR (gst_d3d11_window_core_window_update_swap_chain);
window_class->change_fullscreen_mode =
GST_DEBUG_FUNCPTR (gst_d3d11_window_core_window_change_fullscreen_mode);
window_class->create_swap_chain =
GST_DEBUG_FUNCPTR (gst_d3d11_window_core_window_create_swap_chain);
window_class->present =
GST_DEBUG_FUNCPTR (gst_d3d11_window_core_window_present);
window_class->unlock =
GST_DEBUG_FUNCPTR (gst_d3d11_window_core_window_unlock);
window_class->unlock_stop =
GST_DEBUG_FUNCPTR (gst_d3d11_window_core_window_unlock_stop);
window_class->on_resize =
GST_DEBUG_FUNCPTR (gst_d3d11_window_core_window_on_resize);
window_class->unprepare =
GST_DEBUG_FUNCPTR (gst_d3d11_window_core_window_unprepare);
}
static void
gst_d3d11_window_core_window_init (GstD3D11WindowCoreWindow * self)
{
self->storage = new CoreWindowWinRTStorage;
self->storage->cancellable = CreateEvent (NULL, TRUE, FALSE, NULL);
}
static void
gst_d3d11_window_core_window_constructed (GObject * object)
{
GstD3D11Window *window = GST_D3D11_WINDOW (object);
GstD3D11WindowCoreWindow *self = GST_D3D11_WINDOW_CORE_WINDOW (object);
CoreWindowWinRTStorage *storage = self->storage;
HRESULT hr;
ComPtr<IInspectable> inspectable;
ComPtr<IWindowSizeChangedEventHandler> resize_handler;
Size size;
ComPtr<Core::ICoreWindow> core_window;
if (!window->external_handle) {
GST_ERROR_OBJECT (self, "No external window handle");
return;
}
inspectable = reinterpret_cast<IInspectable*> (window->external_handle);
hr = inspectable.As (&storage->core_window);
if (!gst_d3d11_result (hr, NULL))
goto error;
hr = storage->core_window->get_Dispatcher (&storage->dispatcher);
if (!gst_d3d11_result (hr, NULL))
goto error;
hr = get_window_size (storage->dispatcher, storage->cancellable,
storage->core_window, &size);
if (!gst_d3d11_result (hr, NULL))
goto error;
GST_DEBUG_OBJECT (self,
"client size %dx%d", window->surface_width, window->surface_height);
window->surface_width = size.Width;
window->surface_height = size.Height;
hr = MakeAndInitialize<CoreResizeHandler>(&resize_handler, window);
if (!gst_d3d11_result (hr, NULL))
goto error;
hr = storage->core_window.As (&core_window);
if (!gst_d3d11_result (hr, NULL))
goto error;
hr = run_async (storage->dispatcher,
storage->cancellable, DEFAULT_ASYNC_TIMEOUT,
[self, core_window, resize_handler] {
return core_window->add_SizeChanged (resize_handler.Get(),
&self->storage->event_token);
});
if (!gst_d3d11_result (hr, NULL))
goto error;
window->initialized = TRUE;
return;
error:
GST_ERROR_OBJECT (self, "Invalid window handle");
return;
}
static void
gst_d3d11_window_core_window_dispose (GObject * object)
{
gst_d3d11_window_core_window_unprepare (GST_D3D11_WINDOW (object));
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gst_d3d11_window_core_window_unprepare (GstD3D11Window * window)
{
GstD3D11WindowCoreWindow *self = GST_D3D11_WINDOW_CORE_WINDOW (window);
CoreWindowWinRTStorage *storage = self->storage;
if (storage) {
if (storage->core_window && storage->dispatcher) {
ComPtr<Core::ICoreWindow> window;
HRESULT hr;
hr = storage->core_window.As (&window);
if (SUCCEEDED (hr)) {
run_async (storage->dispatcher,
storage->cancellable, DEFAULT_ASYNC_TIMEOUT,
[self, window] {
return window->remove_SizeChanged (self->storage->event_token);
});
}
}
CloseHandle (storage->cancellable);
delete storage;
}
self->storage = NULL;
}
static gboolean
gst_d3d11_window_core_window_create_swap_chain (GstD3D11Window * window,
DXGI_FORMAT format, guint width, guint height, guint swapchain_flags,
IDXGISwapChain ** swap_chain)
{
GstD3D11WindowCoreWindow *self = GST_D3D11_WINDOW_CORE_WINDOW (window);
CoreWindowWinRTStorage *storage = self->storage;
ComPtr<IDXGISwapChain1> new_swapchain;
GstD3D11Device *device = window->device;
DXGI_SWAP_CHAIN_DESC1 desc1 = { 0, };
desc1.Width = width;
desc1.Height = height;
desc1.Format = format;
desc1.Stereo = FALSE;
desc1.SampleDesc.Count = 1;
desc1.SampleDesc.Quality = 0;
desc1.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
desc1.BufferCount = 2;
desc1.Scaling = DXGI_SCALING_NONE;
desc1.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
desc1.AlphaMode = DXGI_ALPHA_MODE_UNSPECIFIED;
desc1.Flags = swapchain_flags;
new_swapchain =
gst_d3d11_device_create_swap_chain_for_core_window (device,
window->external_handle, &desc1, NULL);
if (!new_swapchain) {
GST_ERROR_OBJECT (self, "Cannot create swapchain");
return FALSE;
}
new_swapchain.CopyTo (swap_chain);
return TRUE;
}
static GstFlowReturn
gst_d3d11_window_core_window_present (GstD3D11Window * window,
guint present_flags)
{
GstD3D11WindowCoreWindow *self = GST_D3D11_WINDOW_CORE_WINDOW (window);
HRESULT hr;
DXGI_PRESENT_PARAMETERS present_params = { 0, };
IDXGISwapChain1 *swap_chain = (IDXGISwapChain1 *) window->swap_chain;
/* the first present should not specify dirty-rect */
if (!window->first_present) {
present_params.DirtyRectsCount = 1;
present_params.pDirtyRects = &window->render_rect;
}
hr = swap_chain->Present1 (0, present_flags, &present_params);
if (!gst_d3d11_result (hr, window->device)) {
GST_WARNING_OBJECT (self, "Direct3D cannot present texture, hr: 0x%x",
(guint) hr);
}
return GST_FLOW_OK;
}
static gboolean
gst_d3d11_window_core_window_unlock (GstD3D11Window * window)
{
GstD3D11WindowCoreWindow *self = GST_D3D11_WINDOW_CORE_WINDOW (window);
CoreWindowWinRTStorage *storage = self->storage;
SetEvent (storage->cancellable);
return TRUE;
}
static gboolean
gst_d3d11_window_core_window_unlock_stop (GstD3D11Window * window)
{
GstD3D11WindowCoreWindow *self = GST_D3D11_WINDOW_CORE_WINDOW (window);
CoreWindowWinRTStorage *storage = self->storage;
ResetEvent (storage->cancellable);
return TRUE;
}
static void
gst_d3d11_window_core_window_update_swap_chain (GstD3D11Window * window)
{
GstD3D11WindowCoreWindow *self = GST_D3D11_WINDOW_CORE_WINDOW (window);
gst_d3d11_window_core_window_on_resize (window,
window->surface_width, window->surface_height);
return;
}
static void
gst_d3d11_window_core_window_change_fullscreen_mode (GstD3D11Window * window)
{
GST_FIXME_OBJECT (window, "Implement fullscreen mode change");
return;
}
static void
gst_d3d11_window_core_window_on_resize (GstD3D11Window * window,
guint width, guint height)
{
GstD3D11WindowCoreWindow *self = GST_D3D11_WINDOW_CORE_WINDOW (window);
CoreWindowWinRTStorage *storage = self->storage;
run_async (storage->dispatcher, storage->cancellable, DEFAULT_ASYNC_TIMEOUT,
[window] {
gst_d3d11_window_core_window_on_resize_sync (window);
return S_OK;
});
}
static void
gst_d3d11_window_core_window_on_resize_sync (GstD3D11Window * window)
{
GST_LOG_OBJECT (window,
"New size %dx%d", window->surface_width, window->surface_height);
GST_D3D11_WINDOW_CLASS (parent_class)->on_resize (window,
window->surface_width, window->surface_height);
}
GstD3D11Window *
gst_d3d11_window_core_window_new (GstD3D11Device * device, guintptr handle)
{
GstD3D11Window *window;
g_return_val_if_fail (GST_IS_D3D11_DEVICE (device), NULL);
g_return_val_if_fail (handle, NULL);
window = (GstD3D11Window *)
g_object_new (GST_TYPE_D3D11_WINDOW_CORE_WINDOW,
"d3d11device", device, "window-handle", handle, NULL);
if (!window->initialized) {
gst_object_unref (window);
return NULL;
}
g_object_ref_sink (window);
return window;
}