mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-15 04:46:32 +00:00
15f0bd2461
... and simplify background rendering Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5121>
109 lines
4.2 KiB
C
109 lines
4.2 KiB
C
/* GStreamer
|
|
* Copyright (C) 2023 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/d3d11/gstd3d11.h>
|
|
#include <gst/video/video.h>
|
|
#include <gst/base/base.h>
|
|
#include "gstdwrite-utils.h"
|
|
#include "gstdwrite-enums.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
enum class GstDWriteBlendMode
|
|
{
|
|
NOT_SUPPORTED,
|
|
|
|
/* attach meta with d3d11 texture buffer. */
|
|
ATTACH_TEXTURE,
|
|
|
|
/* attach meta with bitmap buffer */
|
|
ATTACH_BITMAP,
|
|
|
|
/* software blending */
|
|
SW_BLEND,
|
|
|
|
/* 1) renders text on BGRA
|
|
* 2) blends */
|
|
BLEND,
|
|
|
|
/* 1) convert texture to BGRA
|
|
* 2) render text on another BGRA texture
|
|
* 3) blends two textures
|
|
* 3) converts back to original format */
|
|
CONVERT,
|
|
|
|
/* 1) converts texture to RGBA64_LE
|
|
* 2) renders text on BGRA texture
|
|
* 3) blends two textures
|
|
* 3) converts back original format */
|
|
CONVERT_64,
|
|
};
|
|
|
|
#define GST_TYPE_DWRITE_OVERLAY_OBJECT (gst_dwrite_overlay_object_get_type())
|
|
G_DECLARE_FINAL_TYPE (GstDWriteOverlayObject,
|
|
gst_dwrite_overlay_object, GST, DWRITE_OVERLAY_OBJECT, GstObject);
|
|
|
|
GstDWriteOverlayObject * gst_dwrite_overlay_object_new (void);
|
|
|
|
gboolean gst_dwrite_overlay_object_start (GstDWriteOverlayObject * object,
|
|
IDWriteFactory * dwrite_factory);
|
|
|
|
gboolean gst_dwrite_overlay_object_stop (GstDWriteOverlayObject * object);
|
|
|
|
void gst_dwrite_overlay_object_set_context (GstDWriteOverlayObject * object,
|
|
GstElement * elem,
|
|
GstContext * context);
|
|
|
|
gboolean gst_dwrite_overlay_object_handle_query (GstDWriteOverlayObject * object,
|
|
GstElement * elem,
|
|
GstQuery * query);
|
|
|
|
gboolean gst_dwrite_overlay_object_decide_allocation (GstDWriteOverlayObject * object,
|
|
GstElement * elem,
|
|
GstQuery * query);
|
|
|
|
gboolean gst_dwrite_overlay_object_propose_allocation (GstDWriteOverlayObject * object,
|
|
GstElement * elem,
|
|
GstQuery * query);
|
|
|
|
gboolean gst_dwrite_overlay_object_set_caps (GstDWriteOverlayObject * object,
|
|
GstElement * elem,
|
|
GstCaps * in_caps,
|
|
GstCaps * out_caps,
|
|
GstVideoInfo * info,
|
|
GstDWriteBlendMode * selected_mode);
|
|
|
|
gboolean gst_dwrite_overlay_object_update_device (GstDWriteOverlayObject * object,
|
|
GstBuffer * buffer);
|
|
|
|
GstFlowReturn gst_dwrite_overlay_object_prepare_output (GstDWriteOverlayObject * object,
|
|
GstBaseTransform * trans,
|
|
gpointer trans_class,
|
|
GstBuffer * inbuf,
|
|
GstBuffer ** outbuf);
|
|
|
|
gboolean gst_dwrite_overlay_object_draw (GstDWriteOverlayObject * object,
|
|
GstBuffer * buffer,
|
|
IDWriteTextLayout * layout,
|
|
gint x,
|
|
gint y);
|
|
|
|
G_END_DECLS
|