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mutter-performance-source/cogl/cogl-onscreen-template.c
Owen W. Taylor d16df5a5aa Add support for setting up stereo CoglOnscreens
If we want to show quad-buffer stereo with Cogl, we need to pick an
appropriate fbconfig for creating the CoglOnscreen objects. Add
cogl_onscreen_template_set_stereo_enabled() to indicate whether
stereo support is needed.

Add cogl_framebuffer_get_stereo_mode() to see if a framebuffer was
created with stereo support.

Add cogl_framebuffer_get_stereo_mode() to pick whether to draw to
the left, right, or both buffers.

Reviewed-by: Robert Bragg <robert.bragg@intel.com>
2014-07-17 19:27:05 -04:00

105 lines
3.3 KiB
C

/*
* Cogl
*
* A Low Level GPU Graphics and Utilities API
*
* Copyright (C) 2011 Intel Corporation.
*
* 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.
*
* 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 "cogl-gtype-private.h"
#include <stdlib.h>
static void _cogl_onscreen_template_free (CoglOnscreenTemplate *onscreen_template);
COGL_OBJECT_DEFINE (OnscreenTemplate, onscreen_template);
COGL_GTYPE_DEFINE_CLASS (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;
}
void
cogl_onscreen_template_set_stereo_enabled (
CoglOnscreenTemplate *onscreen_template,
CoglBool enabled)
{
onscreen_template->config.stereo_enabled = enabled;
}