24733abf68
Add a CoglFrameInfo object that tracks timing information for frames that are drawn. We track a frame counter and frame timing information for each CoglOnscreen. Internally a CoglFrameInfo is automatically created for each frame, delimited by cogl_onscreen_swap_buffers() or cogl_onscreen_swap_region() calls. CoglFrameInfos are delivered to applications via frame event callbacks that can be registered with a new cogl_onscreen_add_frame_callback() api. Two initial event types (dispatched on all platforms) have been defined; a _SYNC event used for throttling the frame rate of applications and a _COMPLETE event used so signify the end of a frame. Note: This new _add_frame_callback() api makes the cogl_onscreen_add_swap_complete_callback() api redundant and so it should be considered deprecated. Since the _add_swap_complete_callback() api is still experimental api, we will be looking to quickly migrate users to the new api so we can remove the old api. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 700401667db2522045e4623d78797b17f9184501)
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2012 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "cogl-frame-info-private.h"
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static void _cogl_frame_info_free (CoglFrameInfo *info);
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COGL_OBJECT_DEFINE (FrameInfo, frame_info);
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CoglFrameInfo *
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_cogl_frame_info_new (void)
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{
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CoglFrameInfo *info;
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info = g_slice_new0 (CoglFrameInfo);
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return _cogl_frame_info_object_new (info);
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}
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static void
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_cogl_frame_info_free (CoglFrameInfo *info)
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{
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g_slice_free (CoglFrameInfo, info);
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}
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int64_t
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cogl_frame_info_get_frame_counter (CoglFrameInfo *info)
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{
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return info->frame_counter;
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}
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int64_t
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cogl_frame_info_get_presentation_time (CoglFrameInfo *info)
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{
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return info->presentation_time;
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}
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float
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cogl_frame_info_get_refresh_rate (CoglFrameInfo *info)
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{
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return info->refresh_rate;
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}
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CoglOutput *
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cogl_frame_info_get_output (CoglFrameInfo *info)
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{
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return info->output;
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}
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