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60 lines
2.0 KiB
C
60 lines
2.0 KiB
C
/*
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* Copyright (c), Recep Aslantas.
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*
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* MIT License (MIT), http://opensource.org/licenses/MIT
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* Full license can be found in the LICENSE file
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*/
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#ifndef cglm_affine_mat_h
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#define cglm_affine_mat_h
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#include "cglm.h"
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#include "cglm-mat.h"
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#include "cglm-affine-mat-sse2.h"
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#include <assert.h>
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CGLM_INLINE
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void
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glm_affine_mul(mat4 m1, mat4 m2, mat4 dest) {
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#if defined( __SSE__ ) || defined( __SSE2__ )
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glm_affine_mul_sse2(m1, m2, dest);
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#else
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float a00, a01, a02, a03, b00, b01, b02,
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a10, a11, a12, a13, b10, b11, b12,
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a20, a21, a22, a23, b20, b21, b22,
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a30, a31, a32, a33, b30, b31, b32, b33;
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a00 = m1[0][0], a01 = m1[0][1], a02 = m1[0][2], a03 = m1[0][3],
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a10 = m1[1][0], a11 = m1[1][1], a12 = m1[1][2], a13 = m1[1][3],
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a20 = m1[2][0], a21 = m1[2][1], a22 = m1[2][2], a23 = m1[2][3],
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a30 = m1[3][0], a31 = m1[3][1], a32 = m1[3][2], a33 = m1[3][3];
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b00 = m2[0][0], b01 = m2[0][1], b02 = m2[0][2],
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b10 = m2[1][0], b11 = m2[1][1], b12 = m2[1][2],
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b20 = m2[2][0], b21 = m2[2][1], b22 = m2[2][2],
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b30 = m2[3][0], b31 = m2[3][1], b32 = m2[3][2], b33 = m2[3][3];
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dest[0][0] = a00 * b00 + a10 * b01 + a20 * b02;
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dest[0][1] = a01 * b00 + a11 * b01 + a21 * b02;
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dest[0][2] = a02 * b00 + a12 * b01 + a22 * b02;
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dest[0][3] = a03 * b00 + a13 * b01 + a23 * b02;
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dest[1][0] = a00 * b10 + a10 * b11 + a20 * b12;
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dest[1][1] = a01 * b10 + a11 * b11 + a21 * b12;
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dest[1][2] = a02 * b10 + a12 * b11 + a22 * b12;
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dest[1][3] = a03 * b10 + a13 * b11 + a23 * b12;
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dest[2][0] = a00 * b20 + a10 * b21 + a20 * b22;
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dest[2][1] = a01 * b20 + a11 * b21 + a21 * b22;
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dest[2][2] = a02 * b20 + a12 * b21 + a22 * b22;
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dest[2][3] = a03 * b20 + a13 * b21 + a23 * b22;
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dest[3][0] = a00 * b30 + a10 * b31 + a20 * b32 + a30 * b33;
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dest[3][1] = a01 * b30 + a11 * b31 + a21 * b32 + a31 * b33;
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dest[3][2] = a02 * b30 + a12 * b31 + a22 * b32 + a32 * b33;
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dest[3][3] = a03 * b30 + a13 * b31 + a23 * b32 + a33 * b33;
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#endif
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}
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#endif /* cglm_affine_mat_h */
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