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/* 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
#if 0
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,
};
#endif
#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);
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
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