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33 lines
1.1 KiB
GLSL
33 lines
1.1 KiB
GLSL
/* GStreamer
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* Copyright (C) 2020 Matthew Waters <matthew@centricular.com>
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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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef _SWIZZLE_H_
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#define _SWIZZLE_H_
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vec4 swizzle(in vec4 texel, in ivec4 swizzle_idx)
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{
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return vec4(texel[swizzle_idx[0]], texel[swizzle_idx[1]], texel[swizzle_idx[2]], texel[swizzle_idx[3]]);
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}
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vec3 swizzle(in vec3 texel, in ivec3 swizzle_idx)
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{
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return vec3(texel[swizzle_idx[0]], texel[swizzle_idx[1]], texel[swizzle_idx[2]]);
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}
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#endif
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