56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
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//
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// Created by Wouter Groeneveld on 08/07/20.
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//
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#include <gtest/gtest.h>
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#include <math.h>
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#include <libgba-sprite-engine/gbamatrix.h>
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class GBAMatrixSuite : public ::testing::Test {
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protected:
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virtual void TearDown() {
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}
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virtual void SetUp() {
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}
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};
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TEST_F(GBAMatrixSuite, TanUtilityTests) {
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// Math.sin(14) / Math.cos(14) = 0.99 / 0.13 = 7.2446
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auto tanRef = sin(14) / cos(14);
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auto realTan = tan(14);
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ASSERT_EQ((std::floor(tanRef * 100) + .5) / 100, 7.245);
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ASSERT_EQ((std::floor(realTan * 100) + .5) / 100, 7.245);
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auto tanFakeLookupTables = ((lu_sin(14)) / (lu_cos(14))) << 4;
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ASSERT_EQ((std::floor(tanFakeLookupTables * 100) + .5) / 100, 7.245);
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auto result = fx2float(GBAMatrix::tan(int2fx(14)));
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ASSERT_EQ(result, 7.2446);
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}
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TEST_F(GBAMatrixSuite, PerspectiveFovLH_TestData) {
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/* IN:
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* fov 0.78, aspect 1.6, znear 0.01, zfar 1
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* OUT:
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0: 1.520478108791285
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1: 0
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2: 0
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3: 0
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4: 0
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5: 2.4327649740660564
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6: 0
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7: 0
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8: 0
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9: 0
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10: 1.0101010101010102
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11: 1
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12: 0
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13: 0
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14: -0.010101010101010102
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15: 0
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*/
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auto result = GBAMatrix::perspectiveFovLH(float2fx(0.78), float2fx(1.6), float2fx(0.01), float2fx(1));
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ASSERT_EQ(fx2float(result.mAt(0)), 1.52);
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}
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