1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
3 * This file is part of the LibreOffice project.
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
10 /* TODO Use textureOffset for newest version of GLSL */
14 uniform sampler2D sampler;
15 uniform vec2 offsets[16];
16 uniform float kernel[16];
18 varying vec2 tex_coord;
22 vec4 sum = texture2D(sampler, tex_coord.st) * kernel[0];
23 for (int i = 1; i < 16; i++) {
24 sum += texture2D(sampler, tex_coord.st - offsets[i]) * kernel[i];
25 sum += texture2D(sampler, tex_coord.st + offsets[i]) * kernel[i];
30 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */