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2d: add scale2d and its friends

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This commit is contained in:
Recep Aslantas
2020-07-31 13:49:33 +03:00
parent 9b13b2f872
commit 0127d30fa8
5 changed files with 253 additions and 5 deletions
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117
test/src/test_affine2d.h
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@@ -35,7 +35,7 @@ TEST_IMPL(GLM_PREFIX, translate2d_to) {
vec3 v1 = {2.0f, 3.0f, 1.0f}, v2;
glm_mat3_identity(m1);
GLM(translate2d_to)(m1, (vec3){13.0f, 11.0f}, m2);
GLM(translate2d_to)(m1, (vec2){13.0f, 11.0f}, m2);
glm_mat3_mulv(m2, v1, v2);
ASSERT(test_eq(v2[0], 15.0f))
@@ -43,7 +43,7 @@ TEST_IMPL(GLM_PREFIX, translate2d_to) {
ASSERT(test_eq(v2[2], 1.0f))
glm_mat3_identity(m1);
GLM(translate2d_to)(m1, (vec3){1.0f, -1.0f}, m2);
GLM(translate2d_to)(m1, (vec2){1.0f, -1.0f}, m2);
glm_mat3_mulv(m2, v2, v2);
ASSERT(test_eq(v2[0], 16.0f))
@@ -99,3 +99,116 @@ TEST_IMPL(GLM_PREFIX, translate2d_y) {
TEST_SUCCESS
}
TEST_IMPL(GLM_PREFIX, translate2d_make) {
mat3 m1;
vec3 v1 = {2.0f, 3.0f, 1.0f}, v2;
glm_mat3_identity(m1);
GLM(translate2d_make)(m1, (vec2){13.0f, 11.0f});
glm_mat3_mulv(m1, v1, v2);
ASSERT(test_eq(v2[0], 15.0f))
ASSERT(test_eq(v2[1], 14.0f))
ASSERT(test_eq(v2[2], 1.0f))
glm_mat3_identity(m1);
GLM(translate2d_make)(m1, (vec2){-1.0f, -5.0f});
glm_mat3_mulv(m1, v2, v2);
ASSERT(test_eq(v2[0], 14.0f))
ASSERT(test_eq(v2[1], 9.0f))
ASSERT(test_eq(v2[2], 1.0f))
TEST_SUCCESS
}
TEST_IMPL(GLM_PREFIX, scale2d_to) {
mat3 m1, m2;
vec3 v1 = {2.0f, 3.0f, 1.0f}, v2;
glm_mat3_identity(m1);
GLM(scale2d_to)(m1, (vec2){13.0f, 11.0f}, m2);
glm_mat3_mulv(m2, v1, v2);
ASSERT(test_eq(v2[0], 26.0f))
ASSERT(test_eq(v2[1], 33.0f))
ASSERT(test_eq(v2[2], 1.0f))
glm_mat3_identity(m1);
GLM(scale2d_to)(m1, (vec2){-1.0f, -5.0f}, m2);
glm_mat3_mulv(m2, v2, v2);
ASSERT(test_eq(v2[0], -26.0f))
ASSERT(test_eq(v2[1], -165.0f))
ASSERT(test_eq(v2[2], 1.0f))
TEST_SUCCESS
}
TEST_IMPL(GLM_PREFIX, scale2d_make) {
mat3 m1;
vec3 v1 = {2.0f, 3.0f, 1.0f}, v2;
GLM(scale2d_make)(m1, (vec2){13.0f, 11.0f});
glm_mat3_mulv(m1, v1, v2);
ASSERT(test_eq(v2[0], 26.0f))
ASSERT(test_eq(v2[1], 33.0f))
ASSERT(test_eq(v2[2], 1.0f))
GLM(scale2d_make)(m1, (vec3){-1.0f, -5.0f});
glm_mat3_mulv(m1, v2, v2);
ASSERT(test_eq(v2[0], -26.0f))
ASSERT(test_eq(v2[1], -165.0f))
ASSERT(test_eq(v2[2], 1.0f))
TEST_SUCCESS
}
TEST_IMPL(GLM_PREFIX, scale2d) {
mat3 m1;
vec3 v1 = {2.0f, 3.0f, 1.0f}, v2;
glm_mat3_identity(m1);
GLM(scale2d)(m1, (vec2){13.0f, 11.0f});
glm_mat3_mulv(m1, v1, v2);
ASSERT(test_eq(v2[0], 26.0f))
ASSERT(test_eq(v2[1], 33.0f))
ASSERT(test_eq(v2[2], 1.0f))
glm_mat3_identity(m1);
GLM(scale2d)(m1, (vec2){-1.0f, -5.0f});
glm_mat3_mulv(m1, v2, v2);
ASSERT(test_eq(v2[0], -26.0f))
ASSERT(test_eq(v2[1], -165.0f))
ASSERT(test_eq(v2[2], 1.0f))
TEST_SUCCESS
}
TEST_IMPL(GLM_PREFIX, scale2d_uni) {
mat3 m1;
vec3 v1 = {2.0f, 3.0f, 1.0f}, v2;
glm_mat3_identity(m1);
GLM(scale2d_uni)(m1, 13.0f);
glm_mat3_mulv(m1, v1, v2);
ASSERT(test_eq(v2[0], 26.0f))
ASSERT(test_eq(v2[1], 39.0f))
ASSERT(test_eq(v2[2], 1.0f))
glm_mat3_identity(m1);
GLM(scale2d_uni)(m1, -5.0f);
glm_mat3_mulv(m1, v2, v2);
ASSERT(test_eq(v2[0], -130.0f))
ASSERT(test_eq(v2[1], -195.0f))
ASSERT(test_eq(v2[2], 1.0f))
TEST_SUCCESS
}