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mutter-performance-source/cogl/cogl-onscreen-template.c
Robert Bragg fb636008ad By default enable swap throttling
This ensures that when we initialize a CoglOnscreenTemplate that
->swap_throttled is set to TRUE so by default Cogl applications should
have their swap buffer requests throttled to the vblank frequency.

Reviewed-by: Neil Roberts <neil@linux.intel.com>

(cherry picked from commit bdac9ab56284fb84ec09af176c7e31c44dc1bfc6)
2012-08-06 14:27:42 +01:00

90 lines
2.7 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2011 Intel Corporation.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "cogl-object.h"
#include "cogl-framebuffer-private.h"
#include "cogl-onscreen-template-private.h"
#include <stdlib.h>
static void _cogl_onscreen_template_free (CoglOnscreenTemplate *onscreen_template);
COGL_OBJECT_DEFINE (OnscreenTemplate, onscreen_template);
static void
_cogl_onscreen_template_free (CoglOnscreenTemplate *onscreen_template)
{
g_slice_free (CoglOnscreenTemplate, onscreen_template);
}
CoglOnscreenTemplate *
cogl_onscreen_template_new (CoglSwapChain *swap_chain)
{
CoglOnscreenTemplate *onscreen_template = g_slice_new0 (CoglOnscreenTemplate);
char *user_config;
onscreen_template->config.swap_chain = swap_chain;
if (swap_chain)
cogl_object_ref (swap_chain);
else
onscreen_template->config.swap_chain = cogl_swap_chain_new ();
onscreen_template->config.swap_throttled = TRUE;
onscreen_template->config.need_stencil = TRUE;
onscreen_template->config.samples_per_pixel = 0;
user_config = getenv ("COGL_POINT_SAMPLES_PER_PIXEL");
if (user_config)
{
unsigned long samples_per_pixel = strtoul (user_config, NULL, 10);
if (samples_per_pixel != ULONG_MAX)
onscreen_template->config.samples_per_pixel =
samples_per_pixel;
}
return _cogl_onscreen_template_object_new (onscreen_template);
}
void
cogl_onscreen_template_set_samples_per_pixel (
CoglOnscreenTemplate *onscreen_template,
int samples_per_pixel)
{
onscreen_template->config.samples_per_pixel = samples_per_pixel;
}
void
cogl_onscreen_template_set_swap_throttled (
CoglOnscreenTemplate *onscreen_template,
CoglBool throttled)
{
onscreen_template->config.swap_throttled = throttled;
}