1 /* Goom Project 2 * Copyright (C) <2003> Jean-Christophe Hoelt <jeko@free.fr> 3 * 4 * goom_core.c:Contains the core of goom's work. 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Library General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Library General Public License for more details. 15 * 16 * You should have received a copy of the GNU Library General Public 17 * License along with this library; if not, write to the 18 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 19 * Boston, MA 02110-1301, USA. 20 */ 21 22 #include "mathtools.h" 23 24 float sin256[256] = { 25 0, 0.0245412, 0.0490677, 0.0735646, 0.0980171, 0.122411, 0.14673, 0.170962, 26 0.19509, 0.219101, 0.24298, 0.266713, 0.290285, 0.313682, 0.33689, 27 0.359895, 0.382683, 0.405241, 0.427555, 0.449611, 0.471397, 0.492898, 28 0.514103, 0.534998, 0.55557, 0.575808, 0.595699, 0.615232, 0.634393, 29 0.653173, 0.671559, 0.689541, 0.707107, 0.724247, 0.740951, 0.757209, 30 0.77301, 0.788346, 0.803208, 0.817585, 0.83147, 0.844854, 0.857729, 31 0.870087, 0.881921, 0.893224, 0.903989, 0.91421, 0.92388, 0.932993, 32 0.941544, 0.949528, 0.95694, 0.963776, 0.970031, 0.975702, 0.980785, 33 0.985278, 0.989177, 0.99248, 0.995185, 0.99729, 0.998795, 0.999699, 1, 34 0.999699, 0.998795, 0.99729, 0.995185, 0.99248, 0.989177, 0.985278, 35 0.980785, 0.975702, 0.970031, 0.963776, 0.95694, 0.949528, 0.941544, 36 0.932993, 0.92388, 0.91421, 0.903989, 0.893224, 0.881921, 0.870087, 37 0.857729, 0.844854, 0.83147, 0.817585, 0.803208, 0.788346, 0.77301, 38 0.757209, 0.740951, 0.724247, 0.707107, 0.689541, 0.671559, 0.653173, 39 0.634393, 0.615232, 0.595699, 0.575808, 0.55557, 0.534998, 0.514103, 40 0.492898, 0.471397, 0.449611, 0.427555, 0.405241, 0.382683, 0.359895, 41 0.33689, 0.313682, 0.290285, 0.266713, 0.24298, 0.219101, 0.19509, 42 0.170962, 0.14673, 0.122411, 0.0980171, 0.0735646, 0.0490677, 0.0245412, 43 1.22465e-16, -0.0245412, -0.0490677, -0.0735646, -0.0980171, -0.122411, 44 -0.14673, -0.170962, -0.19509, -0.219101, -0.24298, -0.266713, -0.290285, 45 -0.313682, -0.33689, -0.359895, -0.382683, -0.405241, -0.427555, 46 -0.449611, -0.471397, -0.492898, -0.514103, -0.534998, -0.55557, 47 -0.575808, -0.595699, -0.615232, -0.634393, -0.653173, -0.671559, 48 -0.689541, -0.707107, -0.724247, -0.740951, -0.757209, -0.77301, 49 -0.788346, -0.803208, -0.817585, -0.83147, -0.844854, -0.857729, 50 -0.870087, -0.881921, -0.893224, -0.903989, -0.91421, -0.92388, -0.932993, 51 -0.941544, -0.949528, -0.95694, -0.963776, -0.970031, -0.975702, 52 -0.980785, -0.985278, -0.989177, -0.99248, -0.995185, -0.99729, -0.998795, 53 -0.999699, -1, -0.999699, -0.998795, -0.99729, -0.995185, -0.99248, 54 -0.989177, -0.985278, -0.980785, -0.975702, -0.970031, -0.963776, 55 -0.95694, -0.949528, -0.941544, -0.932993, -0.92388, -0.91421, -0.903989, 56 -0.893224, -0.881921, -0.870087, -0.857729, -0.844854, -0.83147, 57 -0.817585, -0.803208, -0.788346, -0.77301, -0.757209, -0.740951, 58 -0.724247, -0.707107, -0.689541, -0.671559, -0.653173, -0.634393, 59 -0.615232, -0.595699, -0.575808, -0.55557, -0.534998, -0.514103, 60 -0.492898, -0.471397, -0.449611, -0.427555, -0.405241, -0.382683, 61 -0.359895, -0.33689, -0.313682, -0.290285, -0.266713, -0.24298, -0.219101, 62 -0.19509, -0.170962, -0.14673, -0.122411, -0.0980171, -0.0735646, 63 -0.0490677, -0.0245412 64 }; 65 66 float cos256[256] = { 67 0, 0.999699, 0.998795, 0.99729, 0.995185, 0.99248, 0.989177, 0.985278, 68 0.980785, 0.975702, 0.970031, 0.963776, 0.95694, 0.949528, 0.941544, 69 0.932993, 0.92388, 0.91421, 0.903989, 0.893224, 0.881921, 0.870087, 70 0.857729, 0.844854, 0.83147, 0.817585, 0.803208, 0.788346, 0.77301, 71 0.757209, 0.740951, 0.724247, 0.707107, 0.689541, 0.671559, 0.653173, 72 0.634393, 0.615232, 0.595699, 0.575808, 0.55557, 0.534998, 0.514103, 73 0.492898, 0.471397, 0.449611, 0.427555, 0.405241, 0.382683, 0.359895, 74 0.33689, 0.313682, 0.290285, 0.266713, 0.24298, 0.219101, 0.19509, 75 0.170962, 0.14673, 0.122411, 0.0980171, 0.0735646, 0.0490677, 0.0245412, 76 6.12323e-17, -0.0245412, -0.0490677, -0.0735646, -0.0980171, -0.122411, 77 -0.14673, -0.170962, -0.19509, -0.219101, -0.24298, -0.266713, -0.290285, 78 -0.313682, -0.33689, -0.359895, -0.382683, -0.405241, -0.427555, 79 -0.449611, -0.471397, -0.492898, -0.514103, -0.534998, -0.55557, 80 -0.575808, -0.595699, -0.615232, -0.634393, -0.653173, -0.671559, 81 -0.689541, -0.707107, -0.724247, -0.740951, -0.757209, -0.77301, 82 -0.788346, -0.803208, -0.817585, -0.83147, -0.844854, -0.857729, 83 -0.870087, -0.881921, -0.893224, -0.903989, -0.91421, -0.92388, -0.932993, 84 -0.941544, -0.949528, -0.95694, -0.963776, -0.970031, -0.975702, 85 -0.980785, -0.985278, -0.989177, -0.99248, -0.995185, -0.99729, -0.998795, 86 -0.999699, -1, -0.999699, -0.998795, -0.99729, -0.995185, -0.99248, 87 -0.989177, -0.985278, -0.980785, -0.975702, -0.970031, -0.963776, 88 -0.95694, -0.949528, -0.941544, -0.932993, -0.92388, -0.91421, -0.903989, 89 -0.893224, -0.881921, -0.870087, -0.857729, -0.844854, -0.83147, 90 -0.817585, -0.803208, -0.788346, -0.77301, -0.757209, -0.740951, 91 -0.724247, -0.707107, -0.689541, -0.671559, -0.653173, -0.634393, 92 -0.615232, -0.595699, -0.575808, -0.55557, -0.534998, -0.514103, 93 -0.492898, -0.471397, -0.449611, -0.427555, -0.405241, -0.382683, 94 -0.359895, -0.33689, -0.313682, -0.290285, -0.266713, -0.24298, -0.219101, 95 -0.19509, -0.170962, -0.14673, -0.122411, -0.0980171, -0.0735646, 96 -0.0490677, -0.0245412, -1.83697e-16, 0.0245412, 0.0490677, 0.0735646, 97 0.0980171, 0.122411, 0.14673, 0.170962, 0.19509, 0.219101, 0.24298, 98 0.266713, 0.290285, 0.313682, 0.33689, 0.359895, 0.382683, 0.405241, 99 0.427555, 0.449611, 0.471397, 0.492898, 0.514103, 0.534998, 0.55557, 100 0.575808, 0.595699, 0.615232, 0.634393, 0.653173, 0.671559, 0.689541, 101 0.707107, 0.724247, 0.740951, 0.757209, 0.77301, 0.788346, 0.803208, 102 0.817585, 0.83147, 0.844854, 0.857729, 0.870087, 0.881921, 0.893224, 103 0.903989, 0.91421, 0.92388, 0.932993, 0.941544, 0.949528, 0.95694, 104 0.963776, 0.970031, 0.975702, 0.980785, 0.985278, 0.989177, 0.99248, 105 0.995185, 0.99729, 0.998795, 0.999699 106 }; 107