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116 lines
2.6 KiB
C
116 lines
2.6 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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#include "test_common.h"
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TEST_IMPL(GLM_PREFIX, frustum) {
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mat4 proj;
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vec4 vp = {0.0f, 0.0f, 800.0f, 600.0f};
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float left, right, top, bottom, znear, zfar;
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znear = 0.1f;
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zfar = 100.0f;
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left = -100.0f;
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right = 100.0f;
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bottom = -100.0f;
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top = 100.0f;
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GLM(frustum)(left, right, bottom, top, znear, zfar, proj);
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ASSERT(test_eq(proj[0][1], 0.0f))
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ASSERT(test_eq(proj[0][2], 0.0f))
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ASSERT(test_eq(proj[0][3], 0.0f))
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ASSERT(test_eq(proj[1][0], 0.0f))
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ASSERT(test_eq(proj[1][2], 0.0f))
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ASSERT(test_eq(proj[1][3], 0.0f))
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ASSERT(test_eq(proj[2][3], -1.0f))
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ASSERT(test_eq(proj[3][0], 0.0f))
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ASSERT(test_eq(proj[3][1], 0.0f))
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ASSERT(test_eq(proj[3][3], 0.0f))
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vec4 v1 = {1.0f, 20.0f, znear};
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vec4 v2 = {1.0f, 20.0f, zfar};
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vec4 v3, v4;
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/* perspective test */
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GLM(mat4_mulv)(proj, v1, v3);
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GLM(project)(v3, proj, vp, v3);
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ASSERT(v3[0] > v1[0])
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ASSERT(v3[1] > v1[1])
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GLM(mat4_mulv)(proj, v2, v4);
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GLM(project)(v4, proj, vp, v4);
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ASSERT(v4[0] < v3[0])
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ASSERT(v4[1] < v3[1])
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/* not infinity */
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ASSERT(!GLM(vec4_isinf)(proj[0]))
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ASSERT(!GLM(vec4_isinf)(proj[1]))
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ASSERT(!GLM(vec4_isinf)(proj[2]))
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ASSERT(!GLM(vec4_isinf)(proj[3]))
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/* not NaN */
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ASSERT(!GLM(vec4_isnan)(proj[0]))
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ASSERT(!GLM(vec4_isnan)(proj[1]))
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ASSERT(!GLM(vec4_isnan)(proj[2]))
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ASSERT(!GLM(vec4_isnan)(proj[3]))
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TEST_SUCCESS
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}
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TEST_IMPL(GLM_PREFIX, camera_lookat) {
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mat4 view1, view2;
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vec3 center,
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eye = {0.024f, 14.6f, 67.04f},
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dir = {0.0f, 0.0f, -1.0f},
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up = {0.0f, 1.0f, 0.0f};
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glm_vec3_add(eye, dir, center);
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glm_lookat(eye, center, up, view1);
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glm_look(eye, dir, up, view2);
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ASSERTIFY(test_assert_mat4_eq(view1, view2))
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TEST_SUCCESS
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}
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TEST_IMPL(GLM_PREFIX, camera_decomp) {
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mat4 proj, proj2;
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vec4 sizes;
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float aspect, fovy, nearZ, farZ;
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aspect = 0.782f;
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fovy = glm_rad(49.984f);
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nearZ = 0.1f;
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farZ = 100.0f;
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glm_perspective(fovy, aspect, nearZ, farZ, proj);
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ASSERT(fabsf(aspect - glm_persp_aspect(proj)) < GLM_FLT_EPSILON)
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ASSERT(fabsf(fovy - glm_persp_fovy(proj)) < GLM_FLT_EPSILON)
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ASSERT(fabsf(49.984f - glm_deg(glm_persp_fovy(proj))) < GLM_FLT_EPSILON)
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glm_persp_sizes(proj, fovy, sizes);
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glm_frustum(-sizes[0] * 0.5f,
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sizes[0] * 0.5f,
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-sizes[1] * 0.5f,
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sizes[1] * 0.5f,
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nearZ,
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farZ,
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proj2);
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ASSERTIFY(test_assert_mat4_eq(proj, proj2))
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TEST_SUCCESS
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}
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