43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
/*
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* Gem-graph OpenGL experiments
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*
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* Desc: OpenGL utils header
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*
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* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
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*
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* This file is part of Gem-graph.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <unistd.h>
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#include <stdbool.h>
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#include <GL/glu.h>
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void check_arrows_data(int x, int y, int z,
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GLuint *arrows, int arrows_nb, int central_stars_nb);
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long compute_vertex_nb(int vertex_nb, int x, int y, int z);
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long compute_lines_nb(int lines_nb, int arrows_nb, int central_stars_nb);
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bool alloc_arrows_vertex (long x, long y, long z,
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GLfloat *vertex_origin, GLfloat *colors_origin,
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int vertex_index, int colors_index);
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bool alloc_arrows_lines (long space_size_x, long space_size_y, long space_size_z,
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GLuint *arrows, int arrows_nb);
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