a0441778ad
Since the Cogl 1.18 branch is actively maintained in parallel with the
master branch; this is a counter part to commit 1b83ef938fc16b which
re-licensed the master branch to use the MIT license.
This re-licensing is a follow up to the proposal that was sent to the
Cogl mailing list:
http://lists.freedesktop.org/archives/cogl/2013-December/001465.html
Note: there was a copyright assignment policy in place for Clutter (and
therefore Cogl which was part of Clutter at the time) until the 11th of
June 2010 and so we only checked the details after that point (commit
0bbf50f905)
For each file, authors were identified via this Git command:
$ git blame -p -C -C -C20 -M -M10 0bbf50f905..HEAD
We received blanket approvals for re-licensing all Red Hat and Collabora
contributions which reduced how many people needed to be contacted
individually:
- http://lists.freedesktop.org/archives/cogl/2013-December/001470.html
- http://lists.freedesktop.org/archives/cogl/2014-January/001536.html
Individual approval requests were sent to all the other identified authors
who all confirmed the re-license on the Cogl mailinglist:
http://lists.freedesktop.org/archives/cogl/2014-January
As well as updating the copyright header in all sources files, the
COPYING file has been updated to reflect the license change and also
document the other licenses used in Cogl such as the SGI Free Software
License B, version 2.0 and the 3-clause BSD license.
This patch was not simply cherry-picked from master; but the same
methodology was used to check the source files.
136 lines
4.1 KiB
C
136 lines
4.1 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) 2012 Red Hat, Inc.
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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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* Authors:
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* Owen Taylor <otaylor@redhat.com>
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*/
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#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
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#error "Only <cogl/cogl.h> can be included directly."
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#endif
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#ifndef __COGL_FRAME_INFO_H
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#define __COGL_FRAME_INFO_H
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#include <cogl/cogl-types.h>
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#include <cogl/cogl-output.h>
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#include <glib.h>
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G_BEGIN_DECLS
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typedef struct _CoglFrameInfo CoglFrameInfo;
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#define COGL_FRAME_INFO(X) ((CoglFrameInfo *)(X))
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/**
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* cogl_is_frame_info:
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* @object: A #CoglObject pointer
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*
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* Gets whether the given object references a #CoglFrameInfo.
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*
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* Return value: %TRUE if the object references a #CoglFrameInfo
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* and %FALSE otherwise.
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* Since: 2.0
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* Stability: unstable
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*/
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CoglBool
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cogl_is_frame_info (void *object);
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/**
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* cogl_frame_info_get_frame_counter:
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* @info: a #CoglFrameInfo object
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*
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* Gets the frame counter for the #CoglOnscreen that corresponds
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* to this frame.
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*
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* Return value: The frame counter value
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* Since: 1.14
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* Stability: unstable
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*/
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int64_t cogl_frame_info_get_frame_counter (CoglFrameInfo *info);
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/**
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* cogl_frame_info_get_presentation_time:
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* @info: a #CoglFrameInfo object
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*
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* Gets the presentation time for the frame. This is the time at which
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* the frame became visible to the user.
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*
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* The presentation time measured in nanoseconds is based on a
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* monotonic time source. The time source is not necessarily
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* correlated with system/wall clock time and may represent the time
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* elapsed since some undefined system event such as when the system
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* last booted.
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*
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* <note>Linux kernel version less that 3.8 can result in
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* non-monotonic timestamps being reported when using a drm based
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* OpenGL driver. Also some buggy Mesa drivers up to 9.0.1 may also
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* incorrectly report non-monotonic timestamps.</note>
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*
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* Return value: the presentation time for the frame
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* Since: 1.14
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* Stability: unstable
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*/
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int64_t cogl_frame_info_get_presentation_time (CoglFrameInfo *info);
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/**
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* cogl_frame_info_get_refresh_rate:
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* @info: a #CoglFrameInfo object
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*
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* Gets the refresh rate in Hertz for the output that the frame was on
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* at the time the frame was presented.
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*
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* <note>Some platforms can't associate a #CoglOutput with a
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* #CoglFrameInfo object but are able to report a refresh rate via
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* this api. Therefore if you need this information then this api is
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* more reliable than using cogl_frame_info_get_output() followed by
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* cogl_output_get_refresh_rate().</note>
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*
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* Return value: the refresh rate in Hertz
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* Since: 1.14
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* Stability: unstable
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*/
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float cogl_frame_info_get_refresh_rate (CoglFrameInfo *info);
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/**
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* cogl_frame_info_get_output:
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* @info: a #CoglFrameInfo object
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*
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* Gets the #CoglOutput that the swapped frame was presented to.
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*
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* Return value: (transfer none): The #CoglOutput that the frame was
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* presented to, or %NULL if this could not be determined.
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* Since: 1.14
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* Stability: unstable
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*/
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CoglOutput *
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cogl_frame_info_get_output (CoglFrameInfo *info);
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G_END_DECLS
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#endif /* __COGL_FRAME_INFO_H */
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