1b2dd815b4
This adds much more comprehensive support for gobject-introspection based bindings by registering all objects as fundamental types that inherit from CoglObject, and all structs as boxed types. Co-Author: Robert Bragg <robert@linux.intel.com> Reviewed-by: Neil Roberts <neil@linux.intel.com>
148 lines
4.3 KiB
C
148 lines
4.3 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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#ifdef COGL_HAS_GTYPE_SUPPORT
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#include <glib-object.h>
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#endif
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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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#ifdef COGL_HAS_GTYPE_SUPPORT
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/**
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* cogl_frame_info_get_gtype:
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*
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* Returns: a #GType that can be used with the GLib type system.
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*/
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GType cogl_frame_info_get_gtype (void);
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#endif
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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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