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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>
144 lines
4.6 KiB
C
144 lines
4.6 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) 2011 Intel Corporation.
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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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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*
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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_ONSCREEN_TEMPLATE_H__
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#define __COGL_ONSCREEN_TEMPLATE_H__
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#include <cogl/cogl-swap-chain.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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COGL_BEGIN_DECLS
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typedef struct _CoglOnscreenTemplate CoglOnscreenTemplate;
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#define COGL_ONSCREEN_TEMPLATE(OBJECT) ((CoglOnscreenTemplate *)OBJECT)
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#ifdef COGL_HAS_GTYPE_SUPPORT
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/**
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* cogl_onscreen_template_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_onscreen_template_get_gtype (void);
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#endif
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CoglOnscreenTemplate *
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cogl_onscreen_template_new (CoglSwapChain *swap_chain);
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/**
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* cogl_onscreen_template_set_samples_per_pixel:
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* @onscreen_template: A #CoglOnscreenTemplate template framebuffer
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* @n: The minimum number of samples per pixel
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*
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* Requires that any future CoglOnscreen framebuffers derived from
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* this template must support making at least @n samples per pixel
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* which will all contribute to the final resolved color for that
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* pixel.
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*
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* By default this value is usually set to 0 and that is referred to
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* as "single-sample" rendering. A value of 1 or greater is referred
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* to as "multisample" rendering.
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*
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* <note>There are some semantic differences between single-sample
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* rendering and multisampling with just 1 point sample such as it
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* being redundant to use the cogl_framebuffer_resolve_samples() and
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* cogl_framebuffer_resolve_samples_region() apis with single-sample
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* rendering.</note>
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*
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* Since: 1.10
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* Stability: unstable
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*/
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void
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cogl_onscreen_template_set_samples_per_pixel (
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CoglOnscreenTemplate *onscreen_template,
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int n);
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/**
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* cogl_onscreen_template_set_swap_throttled:
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* @onscreen_template: A #CoglOnscreenTemplate template framebuffer
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* @throttled: Whether throttling should be enabled
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*
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* Requests that any future #CoglOnscreen framebuffers derived from this
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* template should enable or disable swap throttling according to the given
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* @throttled argument.
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*
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* Since: 1.10
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* Stability: unstable
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*/
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void
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cogl_onscreen_template_set_swap_throttled (
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CoglOnscreenTemplate *onscreen_template,
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CoglBool throttled);
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/**
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* cogl_onscreen_template_set_stereo_enabled:
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* @onscreen_template: A #CoglOnscreenTemplate template framebuffer
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* @enabled: Whether framebuffers are created with stereo buffers
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*
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* Sets whether future #CoglOnscreen framebuffers derived from this
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* template are attempted to be created with both left and right
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* buffers, for use with stereo display. If the display system
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* does not support stereo, then creation of the framebuffer will
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* fail.
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*
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* Since: 1.20
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* Stability: unstable
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*/
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void
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cogl_onscreen_template_set_stereo_enabled (
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CoglOnscreenTemplate *onscreen_template,
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CoglBool enabled);
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/**
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* cogl_is_onscreen_template:
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* @object: A #CoglObject pointer
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*
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* Gets whether the given object references a #CoglOnscreenTemplate.
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*
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* Return value: %TRUE if the object references a #CoglOnscreenTemplate
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* and %FALSE otherwise.
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* Since: 1.10
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* Stability: unstable
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*/
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CoglBool
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cogl_is_onscreen_template (void *object);
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COGL_END_DECLS
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#endif /* __COGL_ONSCREEN_TEMPLATE_H__ */
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