diff options
Diffstat (limited to 'gst/goom/mathtools.c')
| -rw-r--r-- | gst/goom/mathtools.c | 181 |
1 files changed, 96 insertions, 85 deletions
diff --git a/gst/goom/mathtools.c b/gst/goom/mathtools.c index 4b275c62..84d5a964 100644 --- a/gst/goom/mathtools.c +++ b/gst/goom/mathtools.c @@ -1,95 +1,106 @@ -/*---------------------------------------------------------------------------*/ -/* -** mathtools.c -** Goom Project -** -** Created by Jeko on Sun Jul 20 2003 - ** Copyright (c) 2003 iOS. All rights reserved. -*/ -/*---------------------------------------------------------------------------*/ +/* Goom Project + * Copyright (C) <2003> Jean-Christophe Hoelt <jeko@free.fr> + * + * goom_core.c:Contains the core of goom's work. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ #include "mathtools.h" float sin256[256] = { 0, 0.0245412, 0.0490677, 0.0735646, 0.0980171, 0.122411, 0.14673, 0.170962, - 0.19509, 0.219101, 0.24298, 0.266713, 0.290285, 0.313682, 0.33689, - 0.359895, 0.382683, 0.405241, 0.427555, 0.449611, 0.471397, 0.492898, - 0.514103, 0.534998, 0.55557, 0.575808, 0.595699, 0.615232, 0.634393, - 0.653173, 0.671559, 0.689541, 0.707107, 0.724247, 0.740951, 0.757209, - 0.77301, 0.788346, 0.803208, 0.817585, 0.83147, 0.844854, 0.857729, - 0.870087, 0.881921, 0.893224, 0.903989, 0.91421, 0.92388, 0.932993, - 0.941544, 0.949528, 0.95694, 0.963776, 0.970031, 0.975702, 0.980785, - 0.985278, 0.989177, 0.99248, 0.995185, 0.99729, 0.998795, 0.999699, 1, - 0.999699, 0.998795, 0.99729, 0.995185, 0.99248, 0.989177, 0.985278, - 0.980785, 0.975702, 0.970031, 0.963776, 0.95694, 0.949528, 0.941544, - 0.932993, 0.92388, 0.91421, 0.903989, 0.893224, 0.881921, 0.870087, - 0.857729, 0.844854, 0.83147, 0.817585, 0.803208, 0.788346, 0.77301, - 0.757209, 0.740951, 0.724247, 0.707107, 0.689541, 0.671559, 0.653173, - 0.634393, 0.615232, 0.595699, 0.575808, 0.55557, 0.534998, 0.514103, - 0.492898, 0.471397, 0.449611, 0.427555, 0.405241, 0.382683, 0.359895, - 0.33689, 0.313682, 0.290285, 0.266713, 0.24298, 0.219101, 0.19509, - 0.170962, 0.14673, 0.122411, 0.0980171, 0.0735646, 0.0490677, 0.0245412, - 1.22465e-16, -0.0245412, -0.0490677, -0.0735646, -0.0980171, -0.122411, - -0.14673, -0.170962, -0.19509, -0.219101, -0.24298, -0.266713, -0.290285, - -0.313682, -0.33689, -0.359895, -0.382683, -0.405241, -0.427555, - -0.449611, -0.471397, -0.492898, -0.514103, -0.534998, -0.55557, - -0.575808, -0.595699, -0.615232, -0.634393, -0.653173, -0.671559, - -0.689541, -0.707107, -0.724247, -0.740951, -0.757209, -0.77301, - -0.788346, -0.803208, -0.817585, -0.83147, -0.844854, -0.857729, - -0.870087, -0.881921, -0.893224, -0.903989, -0.91421, -0.92388, -0.932993, - -0.941544, -0.949528, -0.95694, -0.963776, -0.970031, -0.975702, - -0.980785, -0.985278, -0.989177, -0.99248, -0.995185, -0.99729, -0.998795, - -0.999699, -1, -0.999699, -0.998795, -0.99729, -0.995185, -0.99248, - -0.989177, -0.985278, -0.980785, -0.975702, -0.970031, -0.963776, - -0.95694, -0.949528, -0.941544, -0.932993, -0.92388, -0.91421, -0.903989, - -0.893224, -0.881921, -0.870087, -0.857729, -0.844854, -0.83147, - -0.817585, -0.803208, -0.788346, -0.77301, -0.757209, -0.740951, - -0.724247, -0.707107, -0.689541, -0.671559, -0.653173, -0.634393, - -0.615232, -0.595699, -0.575808, -0.55557, -0.534998, -0.514103, - -0.492898, -0.471397, -0.449611, -0.427555, -0.405241, -0.382683, - -0.359895, -0.33689, -0.313682, -0.290285, -0.266713, -0.24298, -0.219101, - -0.19509, -0.170962, -0.14673, -0.122411, -0.0980171, -0.0735646, - -0.0490677, -0.0245412 + 0.19509, 0.219101, 0.24298, 0.266713, 0.290285, 0.313682, 0.33689, + 0.359895, 0.382683, 0.405241, 0.427555, 0.449611, 0.471397, 0.492898, + 0.514103, 0.534998, 0.55557, 0.575808, 0.595699, 0.615232, 0.634393, + 0.653173, 0.671559, 0.689541, 0.707107, 0.724247, 0.740951, 0.757209, + 0.77301, 0.788346, 0.803208, 0.817585, 0.83147, 0.844854, 0.857729, + 0.870087, 0.881921, 0.893224, 0.903989, 0.91421, 0.92388, 0.932993, + 0.941544, 0.949528, 0.95694, 0.963776, 0.970031, 0.975702, 0.980785, + 0.985278, 0.989177, 0.99248, 0.995185, 0.99729, 0.998795, 0.999699, 1, + 0.999699, 0.998795, 0.99729, 0.995185, 0.99248, 0.989177, 0.985278, + 0.980785, 0.975702, 0.970031, 0.963776, 0.95694, 0.949528, 0.941544, + 0.932993, 0.92388, 0.91421, 0.903989, 0.893224, 0.881921, 0.870087, + 0.857729, 0.844854, 0.83147, 0.817585, 0.803208, 0.788346, 0.77301, + 0.757209, 0.740951, 0.724247, 0.707107, 0.689541, 0.671559, 0.653173, + 0.634393, 0.615232, 0.595699, 0.575808, 0.55557, 0.534998, 0.514103, + 0.492898, 0.471397, 0.449611, 0.427555, 0.405241, 0.382683, 0.359895, + 0.33689, 0.313682, 0.290285, 0.266713, 0.24298, 0.219101, 0.19509, + 0.170962, 0.14673, 0.122411, 0.0980171, 0.0735646, 0.0490677, 0.0245412, + 1.22465e-16, -0.0245412, -0.0490677, -0.0735646, -0.0980171, -0.122411, + -0.14673, -0.170962, -0.19509, -0.219101, -0.24298, -0.266713, -0.290285, + -0.313682, -0.33689, -0.359895, -0.382683, -0.405241, -0.427555, + -0.449611, -0.471397, -0.492898, -0.514103, -0.534998, -0.55557, + -0.575808, -0.595699, -0.615232, -0.634393, -0.653173, -0.671559, + -0.689541, -0.707107, -0.724247, -0.740951, -0.757209, -0.77301, + -0.788346, -0.803208, -0.817585, -0.83147, -0.844854, -0.857729, + -0.870087, -0.881921, -0.893224, -0.903989, -0.91421, -0.92388, -0.932993, + -0.941544, -0.949528, -0.95694, -0.963776, -0.970031, -0.975702, + -0.980785, -0.985278, -0.989177, -0.99248, -0.995185, -0.99729, -0.998795, + -0.999699, -1, -0.999699, -0.998795, -0.99729, -0.995185, -0.99248, + -0.989177, -0.985278, -0.980785, -0.975702, -0.970031, -0.963776, + -0.95694, -0.949528, -0.941544, -0.932993, -0.92388, -0.91421, -0.903989, + -0.893224, -0.881921, -0.870087, -0.857729, -0.844854, -0.83147, + -0.817585, -0.803208, -0.788346, -0.77301, -0.757209, -0.740951, + -0.724247, -0.707107, -0.689541, -0.671559, -0.653173, -0.634393, + -0.615232, -0.595699, -0.575808, -0.55557, -0.534998, -0.514103, + -0.492898, -0.471397, -0.449611, -0.427555, -0.405241, -0.382683, + -0.359895, -0.33689, -0.313682, -0.290285, -0.266713, -0.24298, -0.219101, + -0.19509, -0.170962, -0.14673, -0.122411, -0.0980171, -0.0735646, + -0.0490677, -0.0245412 }; float cos256[256] = { 0, 0.999699, 0.998795, 0.99729, 0.995185, 0.99248, 0.989177, 0.985278, - 0.980785, 0.975702, 0.970031, 0.963776, 0.95694, 0.949528, 0.941544, - 0.932993, 0.92388, 0.91421, 0.903989, 0.893224, 0.881921, 0.870087, - 0.857729, 0.844854, 0.83147, 0.817585, 0.803208, 0.788346, 0.77301, - 0.757209, 0.740951, 0.724247, 0.707107, 0.689541, 0.671559, 0.653173, - 0.634393, 0.615232, 0.595699, 0.575808, 0.55557, 0.534998, 0.514103, - 0.492898, 0.471397, 0.449611, 0.427555, 0.405241, 0.382683, 0.359895, - 0.33689, 0.313682, 0.290285, 0.266713, 0.24298, 0.219101, 0.19509, - 0.170962, 0.14673, 0.122411, 0.0980171, 0.0735646, 0.0490677, 0.0245412, - 6.12323e-17, -0.0245412, -0.0490677, -0.0735646, -0.0980171, -0.122411, - -0.14673, -0.170962, -0.19509, -0.219101, -0.24298, -0.266713, -0.290285, - -0.313682, -0.33689, -0.359895, -0.382683, -0.405241, -0.427555, - -0.449611, -0.471397, -0.492898, -0.514103, -0.534998, -0.55557, - -0.575808, -0.595699, -0.615232, -0.634393, -0.653173, -0.671559, - -0.689541, -0.707107, -0.724247, -0.740951, -0.757209, -0.77301, - -0.788346, -0.803208, -0.817585, -0.83147, -0.844854, -0.857729, - -0.870087, -0.881921, -0.893224, -0.903989, -0.91421, -0.92388, -0.932993, - -0.941544, -0.949528, -0.95694, -0.963776, -0.970031, -0.975702, - -0.980785, -0.985278, -0.989177, -0.99248, -0.995185, -0.99729, -0.998795, - -0.999699, -1, -0.999699, -0.998795, -0.99729, -0.995185, -0.99248, - -0.989177, -0.985278, -0.980785, -0.975702, -0.970031, -0.963776, - -0.95694, -0.949528, -0.941544, -0.932993, -0.92388, -0.91421, -0.903989, - -0.893224, -0.881921, -0.870087, -0.857729, -0.844854, -0.83147, - -0.817585, -0.803208, -0.788346, -0.77301, -0.757209, -0.740951, - -0.724247, -0.707107, -0.689541, -0.671559, -0.653173, -0.634393, - -0.615232, -0.595699, -0.575808, -0.55557, -0.534998, -0.514103, - -0.492898, -0.471397, -0.449611, -0.427555, -0.405241, -0.382683, - -0.359895, -0.33689, -0.313682, -0.290285, -0.266713, -0.24298, -0.219101, - -0.19509, -0.170962, -0.14673, -0.122411, -0.0980171, -0.0735646, - -0.0490677, -0.0245412, -1.83697e-16, 0.0245412, 0.0490677, 0.0735646, - 0.0980171, 0.122411, 0.14673, 0.170962, 0.19509, 0.219101, 0.24298, - 0.266713, 0.290285, 0.313682, 0.33689, 0.359895, 0.382683, 0.405241, - 0.427555, 0.449611, 0.471397, 0.492898, 0.514103, 0.534998, 0.55557, - 0.575808, 0.595699, 0.615232, 0.634393, 0.653173, 0.671559, 0.689541, - 0.707107, 0.724247, 0.740951, 0.757209, 0.77301, 0.788346, 0.803208, - 0.817585, 0.83147, 0.844854, 0.857729, 0.870087, 0.881921, 0.893224, - 0.903989, 0.91421, 0.92388, 0.932993, 0.941544, 0.949528, 0.95694, - 0.963776, 0.970031, 0.975702, 0.980785, 0.985278, 0.989177, 0.99248, - 0.995185, 0.99729, 0.998795, 0.999699 + 0.980785, 0.975702, 0.970031, 0.963776, 0.95694, 0.949528, 0.941544, + 0.932993, 0.92388, 0.91421, 0.903989, 0.893224, 0.881921, 0.870087, + 0.857729, 0.844854, 0.83147, 0.817585, 0.803208, 0.788346, 0.77301, + 0.757209, 0.740951, 0.724247, 0.707107, 0.689541, 0.671559, 0.653173, + 0.634393, 0.615232, 0.595699, 0.575808, 0.55557, 0.534998, 0.514103, + 0.492898, 0.471397, 0.449611, 0.427555, 0.405241, 0.382683, 0.359895, + 0.33689, 0.313682, 0.290285, 0.266713, 0.24298, 0.219101, 0.19509, + 0.170962, 0.14673, 0.122411, 0.0980171, 0.0735646, 0.0490677, 0.0245412, + 6.12323e-17, -0.0245412, -0.0490677, -0.0735646, -0.0980171, -0.122411, + -0.14673, -0.170962, -0.19509, -0.219101, -0.24298, -0.266713, -0.290285, + -0.313682, -0.33689, -0.359895, -0.382683, -0.405241, -0.427555, + -0.449611, -0.471397, -0.492898, -0.514103, -0.534998, -0.55557, + -0.575808, -0.595699, -0.615232, -0.634393, -0.653173, -0.671559, + -0.689541, -0.707107, -0.724247, -0.740951, -0.757209, -0.77301, + -0.788346, -0.803208, -0.817585, -0.83147, -0.844854, -0.857729, + -0.870087, -0.881921, -0.893224, -0.903989, -0.91421, -0.92388, -0.932993, + -0.941544, -0.949528, -0.95694, -0.963776, -0.970031, -0.975702, + -0.980785, -0.985278, -0.989177, -0.99248, -0.995185, -0.99729, -0.998795, + -0.999699, -1, -0.999699, -0.998795, -0.99729, -0.995185, -0.99248, + -0.989177, -0.985278, -0.980785, -0.975702, -0.970031, -0.963776, + -0.95694, -0.949528, -0.941544, -0.932993, -0.92388, -0.91421, -0.903989, + -0.893224, -0.881921, -0.870087, -0.857729, -0.844854, -0.83147, + -0.817585, -0.803208, -0.788346, -0.77301, -0.757209, -0.740951, + -0.724247, -0.707107, -0.689541, -0.671559, -0.653173, -0.634393, + -0.615232, -0.595699, -0.575808, -0.55557, -0.534998, -0.514103, + -0.492898, -0.471397, -0.449611, -0.427555, -0.405241, -0.382683, + -0.359895, -0.33689, -0.313682, -0.290285, -0.266713, -0.24298, -0.219101, + -0.19509, -0.170962, -0.14673, -0.122411, -0.0980171, -0.0735646, + -0.0490677, -0.0245412, -1.83697e-16, 0.0245412, 0.0490677, 0.0735646, + 0.0980171, 0.122411, 0.14673, 0.170962, 0.19509, 0.219101, 0.24298, + 0.266713, 0.290285, 0.313682, 0.33689, 0.359895, 0.382683, 0.405241, + 0.427555, 0.449611, 0.471397, 0.492898, 0.514103, 0.534998, 0.55557, + 0.575808, 0.595699, 0.615232, 0.634393, 0.653173, 0.671559, 0.689541, + 0.707107, 0.724247, 0.740951, 0.757209, 0.77301, 0.788346, 0.803208, + 0.817585, 0.83147, 0.844854, 0.857729, 0.870087, 0.881921, 0.893224, + 0.903989, 0.91421, 0.92388, 0.932993, 0.941544, 0.949528, 0.95694, + 0.963776, 0.970031, 0.975702, 0.980785, 0.985278, 0.989177, 0.99248, + 0.995185, 0.99729, 0.998795, 0.999699 }; |