gstreamer/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11screencapture.h
Seungha Yang 426535f3a6 d3d11screencapture: Add WinRT API based capture mode
Add Windows Graphics Capture (WGC) API based screen capture mode.
The conditions where this mode is used:
* Explicitly requested by user (capture-api property)
* To capture specific window
* When DXGI desktop duplication API does not work on hybrid graphics systems
  (e.g., multi-gpu laptop)

Full features of this implementation require Windows 11. And Windows 11
SDK is required to build this feature.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3144>
2022-10-21 14:21:28 +00:00

128 lines
6.1 KiB
C

/*
* GStreamer
* Copyright (C) 2022 Seungha Yang <seungha@centricular.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.
*/
#pragma once
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/d3d11/gstd3d11.h>
G_BEGIN_DECLS
#define GST_TYPE_D3D11_SCREEN_CAPTURE (gst_d3d11_screen_capture_get_type())
#define GST_D3D11_SCREEN_CAPTURE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_D3D11_SCREEN_CAPTURE,GstD3D11ScreenCapture))
#define GST_D3D11_SCREEN_CAPTURE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_D3D11_SCREEN_CAPTURE,GstD3D11ScreenCaptureClass))
#define GST_D3D11_SCREEN_CAPTURE_GET_CLASS(obj) (GST_D3D11_SCREEN_CAPTURE_CLASS(G_OBJECT_GET_CLASS(obj)))
#define GST_IS_D3D11_SCREEN_CAPTURE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_D3D11_SCREEN_CAPTURE))
#define GST_IS_D3D11_SCREEN_CAPTURE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_D3D11_SCREEN_CAPTURE))
#define GST_D3D11_SCREEN_CAPTURE_CAST(obj) ((GstD3D11ScreenCapture*)(obj))
typedef struct _GstD3D11ScreenCapture GstD3D11ScreenCapture;
typedef struct _GstD3D11ScreenCaptureClass GstD3D11ScreenCaptureClass;
#define GST_D3D11_SCREEN_CAPTURE_FLOW_EXPECTED_ERROR GST_FLOW_CUSTOM_SUCCESS
#define GST_D3D11_SCREEN_CAPTURE_FLOW_SIZE_CHANGED GST_FLOW_CUSTOM_SUCCESS_1
#define GST_D3D11_SCREEN_CAPTURE_FLOW_UNSUPPORTED GST_FLOW_CUSTOM_ERROR
struct _GstD3D11ScreenCapture
{
GstObject parent;
};
struct _GstD3D11ScreenCaptureClass
{
GstObjectClass parent_class;
GstFlowReturn (*prepare) (GstD3D11ScreenCapture * capture);
gboolean (*get_size) (GstD3D11ScreenCapture * capture,
guint * width,
guint * height);
gboolean (*get_colorimetry) (GstD3D11ScreenCapture * capture,
GstVideoColorimetry * colorimetry);
gboolean (*unlock) (GstD3D11ScreenCapture * capture);
gboolean (*unlock_stop) (GstD3D11ScreenCapture * capture);
void (*show_border) (GstD3D11ScreenCapture * capture,
gboolean show);
GstFlowReturn (*do_capture) (GstD3D11ScreenCapture * capture,
GstD3D11Device * device,
ID3D11Texture2D * texture,
ID3D11RenderTargetView * rtv,
ID3D11VertexShader * vs,
ID3D11PixelShader * ps,
ID3D11InputLayout * layout,
ID3D11SamplerState * sampler,
ID3D11BlendState * blend,
D3D11_BOX * crop_box,
gboolean draw_mouse);
};
GType gst_d3d11_screen_capture_get_type (void);
GstFlowReturn gst_d3d11_screen_capture_prepare (GstD3D11ScreenCapture * capture);
gboolean gst_d3d11_screen_capture_get_size (GstD3D11ScreenCapture * capture,
guint * width,
guint * height);
gboolean gst_d3d11_screen_capture_get_colorimetry (GstD3D11ScreenCapture * capture,
GstVideoColorimetry * colorimetry);
gboolean gst_d3d11_screen_capture_unlock (GstD3D11ScreenCapture * capture);
gboolean gst_d3d11_screen_capture_unlock_stop (GstD3D11ScreenCapture * capture);
void gst_d3d11_screen_capture_show_border (GstD3D11ScreenCapture * capture,
gboolean show);
GstFlowReturn gst_d3d11_screen_capture_do_capture (GstD3D11ScreenCapture * capture,
GstD3D11Device * device,
ID3D11Texture2D * texture,
ID3D11RenderTargetView * rtv,
ID3D11VertexShader * vs,
ID3D11PixelShader * ps,
ID3D11InputLayout * layout,
ID3D11SamplerState * sampler,
ID3D11BlendState * blend,
D3D11_BOX * crop_box,
gboolean draw_mouse);
HRESULT gst_d3d11_screen_capture_find_output_for_monitor (HMONITOR monitor,
IDXGIAdapter1 ** adapter,
IDXGIOutput ** output);
HRESULT gst_d3d11_screen_capture_find_primary_monitor (HMONITOR * monitor,
IDXGIAdapter1 ** adapter,
IDXGIOutput ** output);
HRESULT gst_d3d11_screen_capture_find_nth_monitor (guint index,
HMONITOR * monitor,
IDXGIAdapter1 ** adapter,
IDXGIOutput ** output);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstD3D11ScreenCapture, gst_object_unref)
G_END_DECLS