mirror of
https://github.com/gnif/LookingGlass.git
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6c84c0eca6
This adds a new `earlyInit` call which allows the overlay to register options before actually being intialized. Also the keybind handling and state tracking for each overlay has been moved internal to the overlay itself.
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/**
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* Looking Glass
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* Copyright © 2017-2021 The Looking Glass Authors
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* https://looking-glass.io
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc., 59
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* Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef _H_I_OVERLAY_
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#define _H_I_OVERLAY_
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#include <stdbool.h>
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#include <assert.h>
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#include "common/types.h"
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struct LG_OverlayOps
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{
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/* internal name of the overlay for debugging */
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const char * name;
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/* called very early to allow for option registration, optional */
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void (*earlyInit)(void);
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/* called when the overlay is registered */
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bool (*init)(void ** udata, const void * params);
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/* final free */
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void (*free)(void * udata);
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/* return true if realtime rendering is required when in jitRender mode
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* optional, if omitted assumes false */
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bool (*needs_render)(void * udata, bool interactive);
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/* perform the actual drawing/rendering
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*
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* `interactive` is true if the application is currently in overlay interaction
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* mode.
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*
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* `windowRects` is an array of window rects that were rendered using screen
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* coordinates. Will be `NULL` if the information is not required.
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*
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* `maxRects` is the length of `windowRects`, or 0 if `windowRects` is `NULL`
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*
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* returns the number of rects written to `windowRects`, or -1 if there is not
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* enough room left.
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*/
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int (*render)(void * udata, bool interactive, struct Rect * windowRects,
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int maxRects);
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/* TODO: add load/save settings capabillity */
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};
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#define ASSERT_LG_OVERLAY_VALID(x) \
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assert((x)->name ); \
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assert((x)->init ); \
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assert((x)->free ); \
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assert((x)->render );
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#endif
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