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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#version 150 core
in vec4 fragmentColor;
uniform int shape;
void main()
{
vec2 p = gl_PointCoord * 2.0 - vec2(1.0); // (0,0) in the center
if(shape == 0)
{
}
else if(shape == 1) //diamond
{
if (abs(p.x) + abs(p.y) > 1)
discard;
}
else if(shape == 2) // arrow
{
if(p.y < 0 && (abs(p.x) + abs(p.y)) > 1)
discard;
else if(p.y > 0 && abs(p.x) > 0.5)
discard;
}
else if(shape == 3) //arrow up
{
if(p.y > 0 && (abs(p.x) + abs(p.y)) > 1)
discard;
else if(p.y < 0 && abs(p.x) > 0.5)
discard;
}
else if(shape == 4) // arrow right
{
if(p.x > 0 && (abs(p.x) + abs(p.y)) > 1)
discard;
else if(p.x < 0 && abs(p.y) > 0.5)
discard;
}
else if(shape == 5) // arrow left
{
if(p.x < 0 && (abs(p.x) + abs(p.y)) > 1)
discard;
else if(p.x > 0 && abs(p.y) > 0.5)
discard;
}
else if(shape == 6) // hour glass
{
if(abs(p.x) < abs(p.y))
discard;
}
else if(shape == 7) // bow tie
{
if(abs(p.y) < abs(p.x))
discard;
}
else if(shape == 8) // circle
{
if(dot(p.x, p.y) > 1)
discard;
}
else if(shape == 9) // star
{
if(sqrt(abs(p.x))+sqrt(abs(p.y)) > 1)
discard;
}
else if(shape == 10) // X
{
if(abs(abs(p.x) - abs(p.y)) > 0.2)
discard;
}
else if(shape == 11) // Plus
{
if(abs(p.x) > 0.2 && abs(p.y) > 0.2)
discard;
}
else if(shape == 12) // asterisk
{
}
else if(shape == 13) // horizontal bar
{
if(abs(p.y) > 0.2)
discard;
}
else if(shape == 14) // vertical bar
{
if(abs(p.x) > 0.2)
discard;
}
gl_FragColor = fragmentColor;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */