forked from 12to11/12to11
127 lines
2.6 KiB
C
127 lines
2.6 KiB
C
/* Wayland compositor running on top of an X server.
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Copyright (C) 2022 to various contributors.
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This file is part of 12to11.
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12to11 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
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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12to11 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
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for more details.
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You should have received a copy of the GNU General Public License
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along with 12to11. If not, see <https://www.gnu.org/licenses/>. */
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#include "compositor.h"
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typedef struct _DestroyListener DestroyListener;
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struct _DestroyListener
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{
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/* Function to call. */
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ExtBufferFunc func;
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/* User data. */
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void *data;
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};
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void
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XLRetainBuffer (ExtBuffer *buffer)
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{
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buffer->funcs.retain (buffer);
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}
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void
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XLDereferenceBuffer (ExtBuffer *buffer)
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{
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buffer->funcs.dereference (buffer);
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}
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Picture
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XLPictureFromBuffer (ExtBuffer *buffer)
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{
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return buffer->funcs.get_picture (buffer);
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}
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Pixmap
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XLPixmapFromBuffer (ExtBuffer *buffer)
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{
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return buffer->funcs.get_pixmap (buffer);
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}
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unsigned int
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XLBufferWidth (ExtBuffer *buffer)
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{
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return buffer->funcs.width (buffer);
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}
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unsigned int
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XLBufferHeight (ExtBuffer *buffer)
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{
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return buffer->funcs.height (buffer);
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}
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void
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XLReleaseBuffer (ExtBuffer *buffer)
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{
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buffer->funcs.release (buffer);
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}
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void *
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XLBufferRunOnFree (ExtBuffer *buffer, ExtBufferFunc func,
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void *data)
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{
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DestroyListener *listener;
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listener = XLMalloc (sizeof *listener);
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listener->func = func;
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listener->data = data;
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buffer->destroy_listeners
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= XLListPrepend (buffer->destroy_listeners,
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listener);
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return listener;
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}
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void
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XLBufferCancelRunOnFree (ExtBuffer *buffer, void *key)
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{
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buffer->destroy_listeners
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= XLListRemove (buffer->destroy_listeners, key);
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XLFree (key);
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}
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void
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XLPrintBuffer (ExtBuffer *buffer)
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{
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if (buffer->funcs.print_buffer)
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buffer->funcs.print_buffer (buffer);
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}
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void
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ExtBufferDestroy (ExtBuffer *buffer)
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{
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XLList *listener;
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DestroyListener *item;
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/* Now run every destroy listener connected to this buffer. */
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for (listener = buffer->destroy_listeners;
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listener; listener = listener->next)
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{
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item = listener->data;
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item->func (buffer, item->data);
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}
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/* Not very efficient, since the list is followed through twice, but
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destroy listener lists should always be small. */
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XLListFree (buffer->destroy_listeners, XLFree);
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}
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