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src/shaders/piechart.frag
| 1 | /* | 1 | /* | ||
|---|---|---|---|---|---|
| 2 | * This file is part of KQuickCharts | 2 | * This file is part of KQuickCharts | ||
| 3 | * Copyright 2019 Arjen Hiemstra <ahiemstra@heimr.nl> | 3 | * SPDX-FileCopyrightText: 2019 Arjen Hiemstra <ahiemstra@heimr.nl> | ||
| 4 | * | 4 | * | ||
| 5 | * This library is free software; you can redistribute it and/or | 5 | * SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL | ||
| 6 | * modify it under the terms of the GNU Lesser General Public | | |||
| 7 | * License as published by the Free Software Foundation; either | | |||
| 8 | * version 2.1 of the License, or (at your option) version 3, or any | | |||
| 9 | * later version accepted by the membership of KDE e.V. (or its | | |||
| 10 | * successor approved by the membership of KDE e.V.), which shall | | |||
| 11 | * act as a proxy defined in Section 6 of version 3 of the license. | | |||
| 12 | * | | |||
| 13 | * This library is distributed in the hope that it will be useful, | | |||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | | |||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | | |||
| 16 | * Lesser General Public License for more details. | | |||
| 17 | * | | |||
| 18 | * You should have received a copy of the GNU Lesser General Public | | |||
| 19 | * License along with this library. If not, see <https://www.gnu.org/licenses/>. | | |||
| 20 | */ | 6 | */ | ||
| 21 | 7 | | |||
| 22 | // This requires "sdf.frag" which is included through SDFShader. | 8 | // This requires "sdf.frag" which is included through SDFShader. | ||
| 23 | 9 | | |||
| 24 | // The maximum number of segments we can support for a single pie. | 10 | // The maximum number of segments we can support for a single pie. | ||
| 25 | // This is based on OpenGL's MAX_FRAGMENT_UNIFORM_COMPONENTS. | 11 | // This is based on OpenGL's MAX_FRAGMENT_UNIFORM_COMPONENTS. | ||
| 26 | // MAX_FRAGMENT_UNIFORM_COMPONENTS is required to be at least 1024. | 12 | // MAX_FRAGMENT_UNIFORM_COMPONENTS is required to be at least 1024. | ||
| 27 | // Assuming a segment of size 1, each segment needs | 13 | // Assuming a segment of size 1, each segment needs | ||
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