gstreamer/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12screencapture.h
Seungha Yang ae3ed20f41 d3d12: Add screen capture element
Since DXGI desktop duplication API does not work with Direct3D12 device,
this element will use Direct3D11 device to acquire frame.
Then other rendering operations (e.g., texture copy, render pipeline) will
happen using Direct3D12 API

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5883>
2024-01-05 21:27:35 +09:00

107 lines
4.8 KiB
C

/* GStreamer
* Copyright (C) 2024 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 "gstd3d12.h"
G_BEGIN_DECLS
#define GST_TYPE_D3D12_SCREEN_CAPTURE (gst_d3d12_screen_capture_get_type())
#define GST_D3D12_SCREEN_CAPTURE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_D3D12_SCREEN_CAPTURE,GstD3D12ScreenCapture))
#define GST_D3D12_SCREEN_CAPTURE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_D3D12_SCREEN_CAPTURE,GstD3D12ScreenCaptureClass))
#define GST_D3D12_SCREEN_CAPTURE_GET_CLASS(obj) (GST_D3D12_SCREEN_CAPTURE_CLASS(G_OBJECT_GET_CLASS(obj)))
#define GST_IS_D3D12_SCREEN_CAPTURE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_D3D12_SCREEN_CAPTURE))
#define GST_IS_D3D12_SCREEN_CAPTURE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_D3D12_SCREEN_CAPTURE))
#define GST_D3D12_SCREEN_CAPTURE_CAST(obj) ((GstD3D12ScreenCapture*)(obj))
typedef struct _GstD3D12ScreenCapture GstD3D12ScreenCapture;
typedef struct _GstD3D12ScreenCaptureClass GstD3D12ScreenCaptureClass;
#define GST_D3D12_SCREEN_CAPTURE_FLOW_EXPECTED_ERROR GST_FLOW_CUSTOM_SUCCESS
#define GST_D3D12_SCREEN_CAPTURE_FLOW_SIZE_CHANGED GST_FLOW_CUSTOM_SUCCESS_1
#define GST_D3D12_SCREEN_CAPTURE_FLOW_UNSUPPORTED GST_FLOW_CUSTOM_ERROR
struct _GstD3D12ScreenCapture
{
GstObject parent;
};
struct _GstD3D12ScreenCaptureClass
{
GstObjectClass parent_class;
GstFlowReturn (*prepare) (GstD3D12ScreenCapture * capture);
gboolean (*get_size) (GstD3D12ScreenCapture * capture,
guint * width,
guint * height);
gboolean (*unlock) (GstD3D12ScreenCapture * capture);
gboolean (*unlock_stop) (GstD3D12ScreenCapture * capture);
void (*show_border) (GstD3D12ScreenCapture * capture,
gboolean show);
GstFlowReturn (*do_capture) (GstD3D12ScreenCapture * capture,
GstBuffer * buffer,
const D3D12_BOX * crop_box,
gboolean draw_mouse);
};
GType gst_d3d12_screen_capture_get_type (void);
GstFlowReturn gst_d3d12_screen_capture_prepare (GstD3D12ScreenCapture * capture);
gboolean gst_d3d12_screen_capture_get_size (GstD3D12ScreenCapture * capture,
guint * width,
guint * height);
gboolean gst_d3d12_screen_capture_unlock (GstD3D12ScreenCapture * capture);
gboolean gst_d3d12_screen_capture_unlock_stop (GstD3D12ScreenCapture * capture);
void gst_d3d12_screen_capture_show_border (GstD3D12ScreenCapture * capture,
gboolean show);
GstFlowReturn gst_d3d12_screen_capture_do_capture (GstD3D12ScreenCapture * capture,
GstBuffer * buffer,
const D3D12_BOX * crop_box,
gboolean draw_mouse);
HRESULT gst_d3d12_screen_capture_find_output_for_monitor (HMONITOR monitor,
IDXGIAdapter1 ** adapter,
IDXGIOutput ** output);
HRESULT gst_d3d12_screen_capture_find_primary_monitor (HMONITOR * monitor,
IDXGIAdapter1 ** adapter,
IDXGIOutput ** output);
HRESULT gst_d3d12_screen_capture_find_nth_monitor (guint index,
HMONITOR * monitor,
IDXGIAdapter1 ** adapter,
IDXGIOutput ** output);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstD3D12ScreenCapture, gst_object_unref)
G_END_DECLS