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https://github.com/brl/mutter.git
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df27017ba3
Moved from `MetaShapedTexture` - it will be useful in several other places as well. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/344>
79 lines
2.9 KiB
C
79 lines
2.9 KiB
C
/*
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* Copyright (C) 2013 Red Hat Inc.
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* Copyright (C) 2018 Robert Mader
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* 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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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef META_MONITOR_TRANSFORM_H
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#define META_MONITOR_TRANSFORM_H
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#include <glib-object.h>
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#include "backends/meta-backend-types.h"
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#include "backends/meta-orientation-manager.h"
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#include "core/util-private.h"
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enum _MetaMonitorTransform
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{
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META_MONITOR_TRANSFORM_NORMAL,
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META_MONITOR_TRANSFORM_90,
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META_MONITOR_TRANSFORM_180,
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META_MONITOR_TRANSFORM_270,
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META_MONITOR_TRANSFORM_FLIPPED,
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META_MONITOR_TRANSFORM_FLIPPED_90,
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META_MONITOR_TRANSFORM_FLIPPED_180,
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META_MONITOR_TRANSFORM_FLIPPED_270,
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};
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#define META_MONITOR_N_TRANSFORMS (META_MONITOR_TRANSFORM_FLIPPED_270 + 1)
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#define META_MONITOR_ALL_TRANSFORMS ((1 << META_MONITOR_N_TRANSFORMS) - 1)
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/* Returns true if transform causes width and height to be inverted
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This is true for the odd transforms in the enum */
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static inline gboolean
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meta_monitor_transform_is_rotated (MetaMonitorTransform transform)
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{
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return (transform % 2);
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}
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/* Returns true if transform involves flipping */
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static inline gboolean
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meta_monitor_transform_is_flipped (MetaMonitorTransform transform)
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{
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return (transform >= META_MONITOR_TRANSFORM_FLIPPED);
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}
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META_EXPORT_TEST
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MetaMonitorTransform meta_monitor_transform_from_orientation (MetaOrientation orientation);
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META_EXPORT_TEST
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MetaMonitorTransform meta_monitor_transform_invert (MetaMonitorTransform transform);
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META_EXPORT_TEST
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MetaMonitorTransform meta_monitor_transform_transform (MetaMonitorTransform transform,
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MetaMonitorTransform other);
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void meta_monitor_transform_transform_point (MetaMonitorTransform transform,
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int area_width,
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int area_height,
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int x,
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int y,
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int *out_x,
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int *out_y);
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void meta_monitor_transform_transform_matrix (MetaMonitorTransform transform,
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graphene_matrix_t *matrix);
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#endif /* META_MONITOR_TRANSFORM_H */
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