mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-05-19 00:38:28 +00:00
15434ce51d
Adding d3d12 backend text renderer/blender by using d3d11on12 interop. And subclassing renderer object per backend (i.e., d3d11, d3d12, and bitmap) Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6620>
125 lines
3.5 KiB
C++
125 lines
3.5 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.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include "gstdwriterender.h"
|
|
|
|
GST_DEBUG_CATEGORY_EXTERN (dwrite_overlay_object_debug);
|
|
#define GST_CAT_DEFAULT dwrite_overlay_object_debug
|
|
|
|
static gboolean gst_dwrite_render_upload_default (GstDWriteRender * render,
|
|
const GstVideoInfo * info, GstBuffer * in_buf, GstBuffer * out_buf);
|
|
|
|
#define gst_dwrite_render_parent_class parent_class
|
|
G_DEFINE_ABSTRACT_TYPE (GstDWriteRender, gst_dwrite_render, GST_TYPE_OBJECT);
|
|
|
|
static void
|
|
gst_dwrite_render_class_init (GstDWriteRenderClass * klass)
|
|
{
|
|
klass->upload = gst_dwrite_render_upload_default;
|
|
}
|
|
|
|
static void
|
|
gst_dwrite_render_init (GstDWriteRender * self)
|
|
{
|
|
}
|
|
|
|
GstBuffer *
|
|
gst_dwrite_render_draw_layout (GstDWriteRender * render,
|
|
IDWriteTextLayout * layout, gint x, gint y)
|
|
{
|
|
auto klass = GST_DWRITE_RENDER_GET_CLASS (render);
|
|
|
|
return klass->draw_layout (render, layout, x, y);
|
|
}
|
|
|
|
gboolean
|
|
gst_dwrite_render_blend (GstDWriteRender * render, GstBuffer * layout_buf,
|
|
gint x, gint y, GstBuffer * output)
|
|
{
|
|
auto klass = GST_DWRITE_RENDER_GET_CLASS (render);
|
|
|
|
return klass->blend (render, layout_buf, x, y, output);
|
|
}
|
|
|
|
gboolean
|
|
gst_dwrite_render_update_device (GstDWriteRender * render, GstBuffer * buffer)
|
|
{
|
|
auto klass = GST_DWRITE_RENDER_GET_CLASS (render);
|
|
|
|
return klass->update_device (render, buffer);
|
|
}
|
|
|
|
gboolean
|
|
gst_dwrite_render_handle_allocation_query (GstDWriteRender * render,
|
|
GstElement * elem, GstQuery * query)
|
|
{
|
|
auto klass = GST_DWRITE_RENDER_GET_CLASS (render);
|
|
|
|
return klass->handle_allocation_query (render, elem, query);
|
|
}
|
|
|
|
gboolean
|
|
gst_dwrite_render_can_inplace (GstDWriteRender * render, GstBuffer * buffer)
|
|
{
|
|
auto klass = GST_DWRITE_RENDER_GET_CLASS (render);
|
|
|
|
return klass->can_inplace (render, buffer);
|
|
}
|
|
|
|
static gboolean
|
|
gst_dwrite_render_upload_default (GstDWriteRender * self,
|
|
const GstVideoInfo * info, GstBuffer * in_buf, GstBuffer * out_buf)
|
|
{
|
|
GstVideoFrame in_frame, out_frame;
|
|
gboolean ret;
|
|
|
|
GST_TRACE_OBJECT (self, "system copy");
|
|
|
|
if (!gst_video_frame_map (&in_frame, info, in_buf, GST_MAP_READ)) {
|
|
GST_ERROR_OBJECT (self, "Couldn't map input frame");
|
|
return FALSE;
|
|
}
|
|
|
|
if (!gst_video_frame_map (&out_frame, info, out_buf, GST_MAP_WRITE)) {
|
|
gst_video_frame_unmap (&in_frame);
|
|
GST_ERROR_OBJECT (self, "Couldn't map output frame");
|
|
return FALSE;
|
|
}
|
|
|
|
ret = gst_video_frame_copy (&out_frame, &in_frame);
|
|
|
|
gst_video_frame_unmap (&in_frame);
|
|
gst_video_frame_unmap (&out_frame);
|
|
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
gst_dwrite_render_upload (GstDWriteRender * render, const GstVideoInfo * info,
|
|
GstBuffer * in_buf, GstBuffer * out_buf)
|
|
{
|
|
auto klass = GST_DWRITE_RENDER_GET_CLASS (render);
|
|
|
|
return klass->upload (render, info, in_buf, out_buf);
|
|
}
|