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add some missing non-square matrix funcs

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Recep Aslantas
2023-07-22 13:37:36 +03:00
parent 6e9e91be05
commit dbb85f24c8
18 changed files with 519 additions and 6 deletions
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57
include/cglm/mat3x4.h
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@@ -11,7 +11,13 @@
GLM_MAT3X4_ZERO
Functions:
CGLM_INLINE void glm_mat3x4_make(float * restrict src, mat3x4 dest)
CGLM_INLINE void glm_mat3x4_copy(mat3x4 mat, mat3x4 dest);
CGLM_INLINE void glm_mat3x4_zero(mat3x4 mat);
CGLM_INLINE void glm_mat3x4_make(float * __restrict src, mat3x4 dest);
CGLM_INLINE void glm_mat3x4_mul(mat3x4 m1, mat4x3 m2, mat3 dest);
CGLM_INLINE void glm_mat3x4_mulv(mat3x4 m, vec4 v, vec3 dest);
CGLM_INLINE void glm_mat3x4_transpose(mat3x4 m, mat4x3 dest);
CGLM_INLINE void glm_mat3x4_scale(mat3x4 m, float s);
*/
#ifndef cglm_mat3x4_h
@@ -115,4 +121,53 @@ glm_mat3x4_mul(mat3x4 m1, mat4x3 m2, mat3 dest) {
dest[2][2] = a20 * b02 + a21 * b12 + a22 * b22 + a23 * b32;
}
/*!
* @brief multiply matrix with column vector and store in dest vector
*
* @param[in] m matrix (left)
* @param[in] v vector (right, column vector)
* @param[out] dest result vector
*/
CGLM_INLINE
void
glm_mat3x4_mulv(mat3x4 m, vec4 v, vec3 dest) {
float v0 = v[0], v1 = v[1], v2 = v[2], v3 = v[3];
dest[0] = m[0][0] * v0 + m[0][1] * v1 + m[0][2] * v2 + m[0][3] * v3;
dest[1] = m[1][0] * v0 + m[1][1] * v1 + m[1][2] * v2 + m[1][3] * v3;
dest[2] = m[2][0] * v0 + m[2][1] * v1 + m[2][2] * v2 + m[2][3] * v3;
}
/*!
* @brief transpose matrix and store in dest
*
* @param[in] m matrix
* @param[out] dest result
*/
CGLM_INLINE
void
glm_mat3x4_transpose(mat3x4 m, mat4x3 dest) {
dest[0][0] = m[0][0]; dest[0][1] = m[1][0]; dest[0][2] = m[2][0];
dest[1][0] = m[0][1]; dest[1][1] = m[1][1]; dest[1][2] = m[2][1];
dest[2][0] = m[0][2]; dest[2][1] = m[1][2]; dest[2][2] = m[2][2];
dest[3][0] = m[0][3]; dest[3][1] = m[1][3]; dest[3][2] = m[2][3];
}
/*!
* @brief scale (multiply with scalar) matrix
*
* multiply matrix with scalar
*
* @param[in, out] m matrix
* @param[in] s scalar
*/
CGLM_INLINE
void
glm_mat3x4_scale(mat3x4 m, float s) {
m[0][0] *= s; m[1][0] *= s; m[2][0] *= s;
m[0][1] *= s; m[1][1] *= s; m[2][1] *= s;
m[0][2] *= s; m[1][2] *= s; m[2][2] *= s;
m[0][3] *= s; m[1][3] *= s; m[2][3] *= s;
}
#endif