mutter/src/backends/meta-renderer-view.h
Jonas Ådahl 1c98f01a65 renderer-native: Draw stage separately per CRTC
Prior to this commit the stage was drawn separately for each logical
monitor. This allowed to draw different parts of the stage with
different transformations, e.g. with a different viewport to implement
HiDPI support.

Go even further and have one view per CRTC. This causes the stage to
e.g. draw two mirrored monitors twice, instead of using the same
framebuffer on both. This enables us to do two things: one is to support
tiled monitors and monitor mirroring using the EGLStreams backend; the
other is that it'll enable us to tie rendering directly to the CRTC it
will render for. It is also a requirement for rendering being affected
by CRTC state, such as gamma.

It'll be possible to still inhibit re-drawing of the same content
twice, but it should be implemented differently, so that it will still
be possible to implement features requiring the CRTC split.

https://gitlab.gnome.org/GNOME/mutter/merge_requests/1042
2020-02-25 18:39:51 +01:00

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C

/*
* Copyright (C) 2016 Red Hat Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef META_RENDERER_VIEW_H
#define META_RENDERER_VIEW_H
#include "backends/meta-monitor-manager-private.h"
#include "clutter/clutter-mutter.h"
#define META_TYPE_RENDERER_VIEW (meta_renderer_view_get_type ())
G_DECLARE_FINAL_TYPE (MetaRendererView, meta_renderer_view,
META, RENDERER_VIEW,
ClutterStageViewCogl)
MetaMonitorTransform meta_renderer_view_get_transform (MetaRendererView *view);
#endif /* META_RENDERER_VIEW_H */