YourWishes/cglm
1
0
Fork 0
mirror of https://github.com/recp/cglm.git synced 2026-02-17 03:39:05 +00:00
Code Issues Packages Projects Releases Wiki Activity

mat3x2: fix multiplication functions

Browse Source 
Signed-off-by: Vincent Davis Jr <vince@underview.tech>
This commit is contained in:
Vincent Davis Jr
2024-03-30 21:10:10 -04:00
parent edfb5e3984
commit 2283c708c6
5 changed files with 39 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files

37
include/cglm/mat3x2.h
View File

@@ -14,8 +14,8 @@
CGLM_INLINE void glm_mat3x2_copy(mat3x2 mat, mat3x2 dest);
CGLM_INLINE void glm_mat3x2_zero(mat3x2 mat);
CGLM_INLINE void glm_mat3x2_make(const float * __restrict src, mat3x2 dest);
CGLM_INLINE void glm_mat3x2_mul(mat3x2 m1, mat2x3 m2, mat3 dest);
CGLM_INLINE void glm_mat3x2_mulv(mat3x2 m, vec2 v, vec3 dest);
CGLM_INLINE void glm_mat3x2_mul(mat3x2 m1, mat2x3 m2, mat2 dest);
CGLM_INLINE void glm_mat3x2_mulv(mat3x2 m, vec3 v, vec2 dest);
CGLM_INLINE void glm_mat3x2_transpose(mat3x2 m, mat2x3 dest);
CGLM_INLINE void glm_mat3x2_scale(mat3x2 m, float s);
*/
@@ -84,16 +84,16 @@ glm_mat3x2_make(const float * __restrict src, mat3x2 dest) {
* @brief multiply m1 and m2 to dest
*
* @code
* glm_mat3x2_mul(mat3x2, mat2x3, mat3);
* glm_mat3x2_mul(mat3x2, mat2x3, mat2);
* @endcode
*
* @param[in] m1 left matrix (mat3x2)
* @param[in] m2 right matrix (mat2x3)
* @param[out] dest destination matrix (mat3)
* @param[out] dest destination matrix (mat2)
*/
CGLM_INLINE
void
glm_mat3x2_mul(mat3x2 m1, mat2x3 m2, mat3 dest) {
glm_mat3x2_mul(mat3x2 m1, mat2x3 m2, mat2 dest) {
float a00 = m1[0][0], a01 = m1[0][1],
a10 = m1[1][0], a11 = m1[1][1],
a20 = m1[2][0], a21 = m1[2][1],
@@ -101,21 +101,15 @@ glm_mat3x2_mul(mat3x2 m1, mat2x3 m2, mat3 dest) {
b00 = m2[0][0], b01 = m2[0][1], b02 = m2[0][2],
b10 = m2[1][0], b11 = m2[1][1], b12 = m2[1][2];
dest[0][0] = a00 * b00 + a01 * b10;
dest[0][1] = a00 * b01 + a01 * b11;
dest[0][2] = a00 * b02 + a01 * b12;
dest[0][0] = a00 * b00 + a10 * b01 + a20 * b02;
dest[0][1] = a01 * b00 + a11 * b01 + a21 * b02;
dest[1][0] = a10 * b00 + a11 * b10;
dest[1][1] = a10 * b01 + a11 * b11;
dest[1][2] = a10 * b02 + a11 * b12;
dest[2][0] = a20 * b00 + a21 * b10;
dest[2][1] = a20 * b01 + a21 * b11;
dest[2][2] = a20 * b02 + a21 * b12;
dest[1][0] = a00 * b10 + a10 * b11 + a20 * b12;
dest[1][1] = a01 * b10 + a11 * b11 + a21 * b12;
}
/*!
* @brief multiply matrix with column vector and store in dest vector
* @brief multiply matrix with column vector and store in dest column vector
*
* @param[in] m matrix (left)
* @param[in] v vector (right, column vector)
@@ -123,12 +117,13 @@ glm_mat3x2_mul(mat3x2 m1, mat2x3 m2, mat3 dest) {
*/
CGLM_INLINE
void
glm_mat3x2_mulv(mat3x2 m, vec2 v, vec3 dest) {
float v0 = v[0], v1 = v[1];
glm_mat3x2_mulv(mat3x2 m, vec3 v, vec2 dest) {
float v0, v1, v2;
dest[0] = m[0][0] * v0 + m[0][1] * v1;
dest[1] = m[1][0] * v0 + m[1][1] * v1;
dest[2] = m[2][0] * v0 + m[2][1] * v1;
v0 = v[0], v1 = v[1], v2 = v[2];
dest[0] = m[0][0] * v0 + m[1][0] * v1 + m[2][0] * v2;
dest[1] = m[0][1] * v0 + m[1][1] * v1 + m[2][1] * v2;
}
/*!