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mat4x2: fix multiplication functions

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Signed-off-by: Vincent Davis Jr <vince@underview.tech>
This commit is contained in:
Vincent Davis Jr
2024-03-31 13:09:02 -04:00
parent 929963c6eb
commit 3445f93fbc
5 changed files with 40 additions and 56 deletions
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24
test/src/test_mat4x2.h
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@@ -87,40 +87,40 @@ TEST_IMPL(GLM_PREFIX, mat4x2_mul) {
mat4x2 m1 = GLM_MAT4X2_ZERO_INIT;
mat2x4 m2 = GLM_MAT2X4_ZERO_INIT;
mat4 m3 = GLM_MAT4_ZERO_INIT;
mat4 m4 = GLM_MAT4_ZERO_INIT;
mat2 m3 = GLM_MAT2_ZERO_INIT;
mat2 m4 = GLM_MAT2_ZERO_INIT;
int i, j, k;
int c, r, k;
test_rand_mat4x2(m1);
test_rand_mat2x4(m2);
for (i = 0; i < 4; i++) {
for (j = 0; j < 4; j++) {
for (k = 0; k < 2; k++) {
m4[i][j] += m1[i][k] * m2[k][j];
for (r = 0; r < 2; r++) {
for (c = 0; c < 2; c++) {
for (k = 0; k < 4; k++) {
m4[c][r] += m1[k][r] * m2[c][k];
}
}
}
GLM(mat4x2_mul)(m1, m2, m3);
ASSERTIFY(test_assert_mat4_eq(m3, m4))
ASSERTIFY(test_assert_mat2_eq(m3, m4))
TEST_SUCCESS
}
TEST_IMPL(GLM_PREFIX, mat4x2_mulv) {
mat4x2 mat = A_MATRIX4X2;
vec2 v = {11.0f, 21.0f};
vec4 v = {11.0f, 21.0f, 31.0f, 41.0f};
int i;
vec4 dest;
vec2 dest;
float res = 0.0;
GLM(mat4x2_mulv)(mat, v, dest);
for (i = 0; i < 4; i++) {
res = mat[i][0] * v[0] + mat[i][1] * v[1];
for (i = 0; i < 2; i++) {
res = mat[0][i] * v[0] + mat[1][i] * v[1] + mat[2][i] * v[2] + mat[3][i] * v[3];
ASSERT(test_eq(dest[i], res))
}