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9835289239
If d3d11window does not convert format internally, shader resource view is not required. Note that shader resource view is used for color conversion using shader but when conversion is not required, we just copy input input texture to backbuffer.
144 lines
4.5 KiB
C
144 lines
4.5 KiB
C
/*
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* GStreamer
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* Copyright (C) 2012 Matthew Waters <ystreet00@gmail.com>
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* Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_D3D11_WINDOW_H__
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#define __GST_D3D11_WINDOW_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "gstd3d11_fwd.h"
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#include "gstd3d11colorconverter.h"
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G_BEGIN_DECLS
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#define GST_TYPE_D3D11_WINDOW (gst_d3d11_window_get_type())
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#define GST_D3D11_WINDOW(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_D3D11_WINDOW, GstD3D11Window))
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#define GST_D3D11_WINDOW_CLASS(klass) (G_TYPE_CHECK_CLASS((klass), GST_TYPE_D3D11_WINDOW, GstD3D11WindowClass))
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#define GST_IS_D3D11_WINDOW(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_D3D11_WINDOW))
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#define GST_IS_D3D11_WINDOW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_D3D11_WINDOW))
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#define GST_D3D11_WINDOW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_D3D11_WINDOW, GstD3D11WindowClass))
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typedef struct _GstD3D11Window GstD3D11Window;
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typedef struct _GstD3D11WindowClass GstD3D11WindowClass;
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#define GST_D3D11_WINDOW_FLOW_CLOSED GST_FLOW_CUSTOM_ERROR
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struct _GstD3D11Window
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{
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GstObject parent;
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GstVideoInfo info;
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GstVideoInfo render_info;
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const GstD3D11Format *render_format;
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GstD3D11ColorConverter *converter;
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GstVideoMasteringDisplayInfo mastering_display_info;
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GstVideoContentLightLevel content_light_level;
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/* calculated rect with aspect ratio and window area */
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GstVideoRectangle render_rect;
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/* requested rect via gst_d3d11_window_render */
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GstVideoRectangle rect;
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GMutex lock;
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GCond cond;
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GMainContext *main_context;
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GMainLoop *loop;
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guint width;
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guint height;
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guint surface_width;
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guint surface_height;
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guint aspect_ratio_n;
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guint aspect_ratio_d;
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gboolean visible;
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GSource *msg_source;
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GIOChannel *msg_io_channel;
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GThread *thread;
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gboolean created;
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HWND internal_win_id;
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HWND external_win_id;
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HDC device_handle;
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IDXGISwapChain *swap_chain;
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ID3D11Texture2D *backbuffer;
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ID3D11RenderTargetView *rtv;
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DXGI_FORMAT format;
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GstD3D11Device *device;
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gboolean pending_resize;
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gboolean force_aspect_ratio;
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gboolean enable_navigation_events;
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GstBuffer *cached_buffer;
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};
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struct _GstD3D11WindowClass
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{
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GstObjectClass object_class;
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};
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GType gst_d3d11_window_get_type (void);
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GstD3D11Window * gst_d3d11_window_new (GstD3D11Device * device);
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void gst_d3d11_window_show (GstD3D11Window * window);
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void gst_d3d11_window_set_window_handle (GstD3D11Window * window,
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guintptr id);
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void gst_d3d11_window_set_render_rectangle (GstD3D11Window * window,
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gint x, gint y,
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gint width, gint height);
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void gst_d3d11_window_get_surface_dimensions (GstD3D11Window * window,
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guint * width,
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guint * height);
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gboolean gst_d3d11_window_prepare (GstD3D11Window * window,
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guint width,
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guint height,
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guint aspect_ratio_n,
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guint aspect_ratio_d,
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GstCaps * caps,
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gboolean * do_convert,
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GError ** error);
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GstFlowReturn gst_d3d11_window_render (GstD3D11Window * window,
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GstBuffer * buffer,
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GstVideoRectangle * src_rect);
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gboolean gst_d3d11_window_flush (GstD3D11Window * window);
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G_END_DECLS
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#endif /* __GST_D3D11_WINDOW_H__ */
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