e90d2e845e
It was only useful when Cogl was a separate library Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3910>
117 lines
3.0 KiB
C
117 lines
3.0 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2011 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*
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*/
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#include "config.h"
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#include "cogl/cogl-renderer-private.h"
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#include "cogl/cogl-glib-source.h"
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typedef struct _CoglGLibSource
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{
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GSource source;
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CoglRenderer *renderer;
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int64_t expiration_time;
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} CoglGLibSource;
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static gboolean
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cogl_glib_source_prepare (GSource *source, int *timeout)
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{
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CoglGLibSource *cogl_source = (CoglGLibSource *) source;
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if (_cogl_list_empty (&cogl_source->renderer->idle_closures))
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{
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*timeout = -1;
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cogl_source->expiration_time = -1;
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}
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else
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{
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/* Round up to ensure that we don't try again too early */
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*timeout = 999 / 1000;
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cogl_source->expiration_time = g_source_get_time (source);
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}
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return *timeout == 0;
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}
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static gboolean
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cogl_glib_source_check (GSource *source)
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{
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CoglGLibSource *cogl_source = (CoglGLibSource *) source;
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if (cogl_source->expiration_time >= 0 &&
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g_source_get_time (source) >= cogl_source->expiration_time)
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return TRUE;
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return FALSE;
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}
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static gboolean
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cogl_glib_source_dispatch (GSource *source,
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GSourceFunc callback,
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void *user_data)
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{
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CoglGLibSource *cogl_source = (CoglGLibSource *) source;
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_cogl_closure_list_invoke_no_args (&cogl_source->renderer->idle_closures);
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return TRUE;
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}
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static GSourceFuncs
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cogl_glib_source_funcs =
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{
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cogl_glib_source_prepare,
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cogl_glib_source_check,
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cogl_glib_source_dispatch,
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NULL
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};
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GSource *
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cogl_glib_source_new (CoglRenderer *renderer,
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int priority)
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{
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GSource *source;
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CoglGLibSource *cogl_source;
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source = g_source_new (&cogl_glib_source_funcs,
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sizeof (CoglGLibSource));
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g_source_set_name (source, "[mutter] Cogl");
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cogl_source = (CoglGLibSource *) source;
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cogl_source->renderer = renderer;
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if (priority != G_PRIORITY_DEFAULT)
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g_source_set_priority (source, priority);
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return source;
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}
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