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Diffstat (limited to 'src/glsl/builtins/glsl/inverse.glsl')
-rw-r--r-- | src/glsl/builtins/glsl/inverse.glsl | 106 |
1 files changed, 0 insertions, 106 deletions
diff --git a/src/glsl/builtins/glsl/inverse.glsl b/src/glsl/builtins/glsl/inverse.glsl deleted file mode 100644 index ffb84f90794..00000000000 --- a/src/glsl/builtins/glsl/inverse.glsl +++ /dev/null @@ -1,106 +0,0 @@ -/* Copyright (c) 2005 - 2012 G-Truc Creation (www.g-truc.net) - * Copyright © 2012 Intel Corporation - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ - -#version 120 -mat2 inverse(mat2 m) -{ - mat2 adj; - adj[0][0] = m[1][1]; - adj[0][1] = -m[0][1]; - adj[1][0] = -m[1][0]; - adj[1][1] = m[0][0]; - float det = m[0][0] * m[1][1] - m[1][0] * m[0][1]; - return adj / det; -} - -mat3 inverse(mat3 m) -{ - mat3 adj; - adj[0][0] = + (m[1][1] * m[2][2] - m[2][1] * m[1][2]); - adj[1][0] = - (m[1][0] * m[2][2] - m[2][0] * m[1][2]); - adj[2][0] = + (m[1][0] * m[2][1] - m[2][0] * m[1][1]); - adj[0][1] = - (m[0][1] * m[2][2] - m[2][1] * m[0][2]); - adj[1][1] = + (m[0][0] * m[2][2] - m[2][0] * m[0][2]); - adj[2][1] = - (m[0][0] * m[2][1] - m[2][0] * m[0][1]); - adj[0][2] = + (m[0][1] * m[1][2] - m[1][1] * m[0][2]); - adj[1][2] = - (m[0][0] * m[1][2] - m[1][0] * m[0][2]); - adj[2][2] = + (m[0][0] * m[1][1] - m[1][0] * m[0][1]); - - float det = (+ m[0][0] * (m[1][1] * m[2][2] - m[1][2] * m[2][1]) - - m[0][1] * (m[1][0] * m[2][2] - m[1][2] * m[2][0]) - + m[0][2] * (m[1][0] * m[2][1] - m[1][1] * m[2][0])); - - return adj / det; -} - -mat4 inverse(mat4 m) -{ - float SubFactor00 = m[2][2] * m[3][3] - m[3][2] * m[2][3]; - float SubFactor01 = m[2][1] * m[3][3] - m[3][1] * m[2][3]; - float SubFactor02 = m[2][1] * m[3][2] - m[3][1] * m[2][2]; - float SubFactor03 = m[2][0] * m[3][3] - m[3][0] * m[2][3]; - float SubFactor04 = m[2][0] * m[3][2] - m[3][0] * m[2][2]; - float SubFactor05 = m[2][0] * m[3][1] - m[3][0] * m[2][1]; - float SubFactor06 = m[1][2] * m[3][3] - m[3][2] * m[1][3]; - float SubFactor07 = m[1][1] * m[3][3] - m[3][1] * m[1][3]; - float SubFactor08 = m[1][1] * m[3][2] - m[3][1] * m[1][2]; - float SubFactor09 = m[1][0] * m[3][3] - m[3][0] * m[1][3]; - float SubFactor10 = m[1][0] * m[3][2] - m[3][0] * m[1][2]; - float SubFactor11 = m[1][1] * m[3][3] - m[3][1] * m[1][3]; - float SubFactor12 = m[1][0] * m[3][1] - m[3][0] * m[1][1]; - float SubFactor13 = m[1][2] * m[2][3] - m[2][2] * m[1][3]; - float SubFactor14 = m[1][1] * m[2][3] - m[2][1] * m[1][3]; - float SubFactor15 = m[1][1] * m[2][2] - m[2][1] * m[1][2]; - float SubFactor16 = m[1][0] * m[2][3] - m[2][0] * m[1][3]; - float SubFactor17 = m[1][0] * m[2][2] - m[2][0] * m[1][2]; - float SubFactor18 = m[1][0] * m[2][1] - m[2][0] * m[1][1]; - - mat4 adj; - - adj[0][0] = + (m[1][1] * SubFactor00 - m[1][2] * SubFactor01 + m[1][3] * SubFactor02); - adj[1][0] = - (m[1][0] * SubFactor00 - m[1][2] * SubFactor03 + m[1][3] * SubFactor04); - adj[2][0] = + (m[1][0] * SubFactor01 - m[1][1] * SubFactor03 + m[1][3] * SubFactor05); - adj[3][0] = - (m[1][0] * SubFactor02 - m[1][1] * SubFactor04 + m[1][2] * SubFactor05); - - adj[0][1] = - (m[0][1] * SubFactor00 - m[0][2] * SubFactor01 + m[0][3] * SubFactor02); - adj[1][1] = + (m[0][0] * SubFactor00 - m[0][2] * SubFactor03 + m[0][3] * SubFactor04); - adj[2][1] = - (m[0][0] * SubFactor01 - m[0][1] * SubFactor03 + m[0][3] * SubFactor05); - adj[3][1] = + (m[0][0] * SubFactor02 - m[0][1] * SubFactor04 + m[0][2] * SubFactor05); - - adj[0][2] = + (m[0][1] * SubFactor06 - m[0][2] * SubFactor07 + m[0][3] * SubFactor08); - adj[1][2] = - (m[0][0] * SubFactor06 - m[0][2] * SubFactor09 + m[0][3] * SubFactor10); - adj[2][2] = + (m[0][0] * SubFactor11 - m[0][1] * SubFactor09 + m[0][3] * SubFactor12); - adj[3][2] = - (m[0][0] * SubFactor08 - m[0][1] * SubFactor10 + m[0][2] * SubFactor12); - - adj[0][3] = - (m[0][1] * SubFactor13 - m[0][2] * SubFactor14 + m[0][3] * SubFactor15); - adj[1][3] = + (m[0][0] * SubFactor13 - m[0][2] * SubFactor16 + m[0][3] * SubFactor17); - adj[2][3] = - (m[0][0] * SubFactor14 - m[0][1] * SubFactor16 + m[0][3] * SubFactor18); - adj[3][3] = + (m[0][0] * SubFactor15 - m[0][1] * SubFactor17 + m[0][2] * SubFactor18); - - float det = (+ m[0][0] * adj[0][0] - + m[0][1] * adj[1][0] - + m[0][2] * adj[2][0] - + m[0][3] * adj[3][0]); - - return adj / det; -} - |