d16df5a5aa
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>
143 lines
4.6 KiB
C
143 lines
4.6 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>
|
|
*
|
|
*/
|
|
|
|
#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __COGL_ONSCREEN_TEMPLATE_H__
|
|
#define __COGL_ONSCREEN_TEMPLATE_H__
|
|
|
|
#include <cogl/cogl-swap-chain.h>
|
|
|
|
#ifdef COGL_HAS_GTYPE_SUPPORT
|
|
#include <glib-object.h>
|
|
#endif
|
|
|
|
COGL_BEGIN_DECLS
|
|
|
|
typedef struct _CoglOnscreenTemplate CoglOnscreenTemplate;
|
|
|
|
#define COGL_ONSCREEN_TEMPLATE(OBJECT) ((CoglOnscreenTemplate *)OBJECT)
|
|
|
|
#ifdef COGL_HAS_GTYPE_SUPPORT
|
|
/**
|
|
* cogl_onscreen_template_get_gtype:
|
|
*
|
|
* Returns: a #GType that can be used with the GLib type system.
|
|
*/
|
|
GType cogl_onscreen_template_get_gtype (void);
|
|
#endif
|
|
|
|
CoglOnscreenTemplate *
|
|
cogl_onscreen_template_new (CoglSwapChain *swap_chain);
|
|
|
|
/**
|
|
* cogl_onscreen_template_set_samples_per_pixel:
|
|
* @onscreen_template: A #CoglOnscreenTemplate template framebuffer
|
|
* @n: The minimum number of samples per pixel
|
|
*
|
|
* Requires that any future CoglOnscreen framebuffers derived from
|
|
* this template must support making at least @n samples per pixel
|
|
* which will all contribute to the final resolved color for that
|
|
* pixel.
|
|
*
|
|
* By default this value is usually set to 0 and that is referred to
|
|
* as "single-sample" rendering. A value of 1 or greater is referred
|
|
* to as "multisample" rendering.
|
|
*
|
|
* <note>There are some semantic differences between single-sample
|
|
* rendering and multisampling with just 1 point sample such as it
|
|
* being redundant to use the cogl_framebuffer_resolve_samples() and
|
|
* cogl_framebuffer_resolve_samples_region() apis with single-sample
|
|
* rendering.</note>
|
|
*
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_onscreen_template_set_samples_per_pixel (
|
|
CoglOnscreenTemplate *onscreen_template,
|
|
int n);
|
|
|
|
/**
|
|
* cogl_onscreen_template_set_swap_throttled:
|
|
* @onscreen_template: A #CoglOnscreenTemplate template framebuffer
|
|
* @throttled: Whether throttling should be enabled
|
|
*
|
|
* Requests that any future #CoglOnscreen framebuffers derived from this
|
|
* template should enable or disable swap throttling according to the given
|
|
* @throttled argument.
|
|
*
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_onscreen_template_set_swap_throttled (
|
|
CoglOnscreenTemplate *onscreen_template,
|
|
CoglBool throttled);
|
|
|
|
/**
|
|
* cogl_onscreen_template_set_stereo_enabled:
|
|
* @onscreen_template: A #CoglOnscreenTemplate template framebuffer
|
|
* @enabled: Whether framebuffers are created with stereo buffers
|
|
*
|
|
* Sets whether future #CoglOnscreen framebuffers derived from this
|
|
* template are attempted to be created with both left and right
|
|
* buffers, for use with stereo display. If the display system
|
|
* does not support stereo, then creation of the framebuffer will
|
|
* fail.
|
|
*
|
|
* Since: 1.20
|
|
* Stability: unstable
|
|
*/
|
|
void
|
|
cogl_onscreen_template_set_stereo_enabled (
|
|
CoglOnscreenTemplate *onscreen_template,
|
|
CoglBool enabled);
|
|
/**
|
|
* cogl_is_onscreen_template:
|
|
* @object: A #CoglObject pointer
|
|
*
|
|
* Gets whether the given object references a #CoglOnscreenTemplate.
|
|
*
|
|
* Return value: %TRUE if the object references a #CoglOnscreenTemplate
|
|
* and %FALSE otherwise.
|
|
* Since: 1.10
|
|
* Stability: unstable
|
|
*/
|
|
CoglBool
|
|
cogl_is_onscreen_template (void *object);
|
|
|
|
COGL_END_DECLS
|
|
|
|
#endif /* __COGL_ONSCREEN_TEMPLATE_H__ */
|