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/*
* Cogl
*
* A Low Level GPU Graphics and Utilities API
*
* Copyright (C) 2012 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
*
*/
#ifndef __COGL_FRAME_INFO_PRIVATE_H
#define __COGL_FRAME_INFO_PRIVATE_H
#include "cogl-frame-info.h"
#include "cogl-object-private.h"
typedef enum _CoglFrameInfoFlag
{
COGL_FRAME_INFO_FLAG_NONE = 0,
COGL_FRAME_INFO_FLAG_SYMBOLIC = 1 << 0,
/* presentation_time timestamp was provided by the hardware */
COGL_FRAME_INFO_FLAG_HW_CLOCK = 1 << 1,
/*
* The presentation of this frame was done zero-copy. This means the buffer
* from the client was given to display hardware as is, without copying it.
* Compositing with OpenGL counts as copying, even if textured directly from
* the client buffer. Possible zero-copy cases include direct scanout of a
* fullscreen surface and a surface on a hardware overlay.
*/
COGL_FRAME_INFO_FLAG_ZERO_COPY = 1 << 2,
/*
* The presentation was synchronized to the "vertical retrace" by the display
* hardware such that tearing does not happen. Relying on user space
* scheduling is not acceptable for this flag. If presentation is done by a
* copy to the active frontbuffer, then it must guarantee that tearing cannot
* happen.
*/
COGL_FRAME_INFO_FLAG_VSYNC = 1 << 3,
} CoglFrameInfoFlag;
struct _CoglFrameInfo
{
CoglObject _parent;
int64_t frame_counter;
int64_t presentation_time_us; /* CLOCK_MONOTONIC */
float refresh_rate;
int64_t global_frame_counter;
CoglFrameInfoFlag flags;
unsigned int sequence;
};
COGL_EXPORT
CoglFrameInfo *cogl_frame_info_new (int64_t global_frame_counter);
#endif /* __COGL_FRAME_INFO_PRIVATE_H */
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