a74c81ada3
This adds support for multisample based rendering of onscreen windows whereby multiple point samples per pixel can be requested and if the hardware supports that it results in reduced aliasing (especially considering the jagged edges of polygons) Reviewed-by: Neil Roberts <neil@linux.intel.com>
76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2011 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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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(CLUTTER_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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G_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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#define cogl_onscreen_template_new cogl_onscreen_template_new_EXP
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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: 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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G_END_DECLS
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#endif /* __COGL_ONSCREEN_TEMPLATE_H__ */
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