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kc3-lang/ftgl/test/FTVectoriser-Test.cpp
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- test/FTVectoriser-Test.cpp
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#include <cppunit/extensions/HelperMacros.h> #include <cppunit/TestCaller.h> #include <cppunit/TestCase.h> #include <cppunit/TestSuite.h> #include <assert.h> #include "Fontdefs.h" #include "FTVectoriser.h" static double testOutline[] = { 29, 0, 0.0, 29, 4.35938, 0.0, 27.4194, 2.43, 0.0, 25.565, 0.929375, 0.0, 23.4369, -0.1425, 0.0, 21.035, -0.785625, 0.0, 18.3594, -1, 0.0, 16.57, -0.901563, 0.0, 14.8394, -0.60625, 0.0, 13.1675, -0.114062, 0.0, 11.5544, 0.575, 0.0, 10, 1.46094, 0.0, 8.54375, 2.52312, 0.0, 7.225, 3.74094, 0.0, 6.04375, 5.11437, 0.0, 5, 6.64344, 0.0, 4.09375, 8.32812, 0.0, 3.34, 10.1438, 0.0, 2.75375, 12.0656, 0.0, 2.335, 14.0938, 0.0, 2.08375, 16.2281, 0.0, 2, 18.4688, 0.0, 2.07563, 20.6588, 0.0, 2.3025, 22.7662, 0.0, 2.68063, 24.7913, 0.0, 3.21, 26.7338, 0.0, 3.89062, 28.5938, 0.0, 4.72281, 30.3278, 0.0, 5.70688, 31.8925, 0.0, 6.84281, 33.2878, 0.0, 8.13063, 34.5138, 0.0, 9.57031, 35.5703, 0.0, 11.1225, 36.445, 0.0, 12.7478, 37.1253, 0.0, 14.4462, 37.6112, 0.0, 16.2178, 37.9028, 0.0, 18.0625, 38, 0.0, 19.4016, 37.9453, 0.0, 20.6812, 37.7812, 0.0, 21.9016, 37.5078, 0.0, 23.0625, 37.125, 0.0, 24.1641, 36.6328, 0.0, 25.1962, 36.0538, 0.0, 26.1491, 35.4103, 0.0, 27.0225, 34.7025, 0.0, 27.8166, 33.9303, 0.0, 28.5312, 33.0938, 0.0, 28.5312, 51, 0.0, 35, 51, 0.0, 35, 0, 0.0, 9, 18.4844, 0.0, 9.12031, 15.7244, 0.0, 9.48125, 13.2569, 0.0, 10.0828, 11.0819, 0.0, 10.925, 9.19937, 0.0, 12.0078, 7.60938, 0.0, 13.2538, 6.31, 0.0, 14.5853, 5.29938, 0.0, 16.0025, 4.5775, 0.0, 17.5053, 4.14438, 0.0, 19.0938, 4, 0.0, 20.6997, 4.1375, 0.0, 22.205, 4.55, 0.0, 23.6097, 5.2375, 0.0, 24.9138, 6.2, 0.0, 26.1172, 7.4375, 0.0, 27.155, 8.95813, 0.0, 27.9622, 10.77, 0.0, 28.5388, 12.8731, 0.0, 28.8847, 15.2675, 0.0, 29, 17.9531, 0.0, 28.8825, 20.8944, 0.0, 28.53, 23.5056, 0.0, 27.9425, 25.7869, 0.0, 27.12, 27.7381, 0.0, 26.0625, 29.3594, 0.0, 24.8331, 30.67, 0.0, 23.495, 31.6894, 0.0, 22.0481, 32.4175, 0.0, 20.4925, 32.8544, 0.0, 18.8281, 33, 0.0, 17.2025, 32.86, 0.0, 15.6881, 32.44, 0.0, 14.285, 31.74, 0.0, 12.9931, 30.76, 0.0, 11.8125, 29.5, 0.0, 10.8, 27.9394, 0.0, 10.0125, 26.0575, 0.0, 9.45, 23.8544, 0.0, 9.1125, 21.33, 0.0, 9, 18.4844, 0.0 }; static GLenum testMeshPolygonTypes[] = { GL_TRIANGLE_FAN, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_TRIANGLE_FAN, GL_TRIANGLE_FAN, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN }; static unsigned int testMeshPointCount[] = { 8, 7, 7, 9, 7, 6, 21, 5, 6, 6, 9, 13, 7, 7, }; static double testMesh[] = { 29, 4.35938, 0, 29, 0, 0, 35, 0, 0, 29, 17.9531, 0, 28.8847, 15.2675, 0, 28.5388, 12.8731, 0, 27.9622, 10.77, 0, 27.4194, 2.43, 0, 27.9622, 10.77, 0, 27.155, 8.95813, 0, 27.4194, 2.43, 0, 26.1172, 7.4375, 0, 25.565, 0.929375, 0, 24.9137, 6.2, 0, 23.6097, 5.2375, 0, 25.565, 0.929375, 0, 23.6097, 5.2375, 0, 23.4369, -0.1425, 0, 22.205, 4.55, 0, 21.035, -0.785625, 0, 20.6997, 4.1375, 0, 19.0938, 4, 0, 21.035, -0.785625, 0, 19.0938, 4, 0, 18.3594, -1, 0, 17.5053, 4.14437, 0, 16.57, -0.901563, 0, 16.0025, 4.5775, 0, 14.8394, -0.60625, 0, 14.5853, 5.29938, 0, 13.2537, 6.31, 0, 14.8394, -0.60625, 0, 13.2537, 6.31, 0, 13.1675, -0.114062, 0, 12.0078, 7.60938, 0, 11.5544, 0.575, 0, 10.925, 9.19938, 0, 10.0828, 11.0819, 0, 10, 1.46094, 0, 11.5544, 0.575, 0, 10.0828, 11.0819, 0, 9.48125, 13.2569, 0, 9.12031, 15.7244, 0, 8.54375, 2.52312, 0, 9.12031, 15.7244, 0, 9, 18.4844, 0, 8.54375, 2.52312, 0, 8.13062, 34.5138, 0, 7.225, 3.74094, 0, 6.84281, 33.2878, 0, 6.04375, 5.11438, 0, 5.70688, 31.8925, 0, 5, 6.64344, 0, 4.72281, 30.3278, 0, 4.09375, 8.32812, 0, 3.89062, 28.5938, 0, 3.34, 10.1438, 0, 3.21, 26.7337, 0, 2.75375, 12.0656, 0, 2.68062, 24.7913, 0, 2.335, 14.0938, 0, 2.3025, 22.7663, 0, 2.08375, 16.2281, 0, 2.07562, 20.6588, 0, 2, 18.4688, 0, 35, 51, 0, 28.5312, 51, 0, 28.8825, 20.8944, 0, 29, 17.9531, 0, 35, 0, 0, 28.5312, 33.0938, 0, 27.8166, 33.9303, 0, 27.9425, 25.7869, 0, 28.53, 23.5056, 0, 28.8825, 20.8944, 0, 28.5312, 51, 0, 27.12, 27.7381, 0, 27.9425, 25.7869, 0, 27.8166, 33.9303, 0, 27.0225, 34.7025, 0, 26.1491, 35.4103, 0, 26.0625, 29.3594, 0, 21.9016, 37.5078, 0, 22.0481, 32.4175, 0, 23.0625, 37.125, 0, 23.495, 31.6894, 0, 24.1641, 36.6328, 0, 24.8331, 30.67, 0, 25.1963, 36.0537, 0, 26.0625, 29.3594, 0, 26.1491, 35.4103, 0, 12.9931, 30.76, 0, 14.285, 31.74, 0, 14.4462, 37.6113, 0, 15.6881, 32.44, 0, 16.2178, 37.9028, 0, 17.2025, 32.86, 0, 18.0625, 38, 0, 18.8281, 33, 0, 19.4016, 37.9453, 0, 20.4925, 32.8544, 0, 20.6813, 37.7812, 0, 22.0481, 32.4175, 0, 21.9016, 37.5078, 0, 10.0125, 26.0575, 0, 10.8, 27.9394, 0, 11.1225, 36.445, 0, 11.8125, 29.5, 0, 12.7478, 37.1253, 0, 12.9931, 30.76, 0, 14.4462, 37.6113, 0, 9.57031, 35.5703, 0, 8.13062, 34.5138, 0, 9, 18.4844, 0, 9.1125, 21.33, 0, 9.45, 23.8544, 0, 10.0125, 26.0575, 0, 11.1225, 36.445, 0 }; class FTVectoriserTest : public CppUnit::TestCase { CPPUNIT_TEST_SUITE( FTVectoriserTest); CPPUNIT_TEST( testNullGlyphProcess); CPPUNIT_TEST( testBadGlyphProcess); CPPUNIT_TEST( testSimpleGlyphProcess); CPPUNIT_TEST( testComplexGlyphProcess); CPPUNIT_TEST( testGetContour); CPPUNIT_TEST( testGetOutline); CPPUNIT_TEST( testGetMesh); CPPUNIT_TEST( testMakeMesh); CPPUNIT_TEST_SUITE_END(); public: FTVectoriserTest() : CppUnit::TestCase( "FTVectoriser Test") {} FTVectoriserTest( const std::string& name) : CppUnit::TestCase(name) {} void testNullGlyphProcess() { FTVectoriser vectoriser( NULL); CPPUNIT_ASSERT( vectoriser.ContourCount() == 0); } void testBadGlyphProcess() { setUpFreetype(); loadGlyph( NULL_CHARACTER_INDEX); FTVectoriser vectoriser( glyph); CPPUNIT_ASSERT( vectoriser.ContourCount() == 0); tearDownFreetype(); } void testSimpleGlyphProcess() { setUpFreetype(); loadGlyph( SIMPLE_CHARACTER_INDEX); FTVectoriser vectoriser( glyph); CPPUNIT_ASSERT( vectoriser.ContourCount() == 2); CPPUNIT_ASSERT( vectoriser.PointCount() == 8); tearDownFreetype(); } void testComplexGlyphProcess() { setUpFreetype(); loadGlyph( COMPLEX_CHARACTER_INDEX); FTVectoriser vectoriser( glyph); CPPUNIT_ASSERT( vectoriser.ContourCount() == 2); CPPUNIT_ASSERT( vectoriser.PointCount() == 91); tearDownFreetype(); } void testGetContour() { setUpFreetype(); loadGlyph( SIMPLE_CHARACTER_INDEX); FTVectoriser vectoriser( glyph); CPPUNIT_ASSERT( vectoriser.Contour(1)); CPPUNIT_ASSERT( vectoriser.Contour(99) == NULL); tearDownFreetype(); } void testGetOutline() { setUpFreetype(); loadGlyph( COMPLEX_CHARACTER_INDEX); FTVectoriser vectoriser( glyph); unsigned int d = 0; for( size_t c = 0; c < vectoriser.ContourCount(); ++c) { const FTContour* contour = vectoriser.Contour(c); for( size_t p = 0; p < contour->PointCount(); ++p) { CPPUNIT_ASSERT_DOUBLES_EQUAL( *(testOutline + d), contour->Point(p).x / 64.0f, 0.01); CPPUNIT_ASSERT_DOUBLES_EQUAL( *(testOutline + d + 1), contour->Point(p).y / 64.0f, 0.01); d += 3; } } tearDownFreetype(); } void testGetMesh() { setUpFreetype(); loadGlyph( SIMPLE_CHARACTER_INDEX); FTVectoriser vectoriser( glyph); CPPUNIT_ASSERT( vectoriser.GetMesh() == NULL); vectoriser.MakeMesh(1.0); CPPUNIT_ASSERT( vectoriser.GetMesh()); } void testMakeMesh() { setUpFreetype(); loadGlyph( COMPLEX_CHARACTER_INDEX); FTVectoriser vectoriser( glyph); vectoriser.MakeMesh(1.0); int d = 0; const FTMesh* mesh = vectoriser.GetMesh(); unsigned int tesselations = mesh->TesselationCount(); CPPUNIT_ASSERT( tesselations == 14); for( unsigned int index = 0; index < tesselations; ++index) { const FTTesselation* subMesh = mesh->Tesselation( index); unsigned int polyType = subMesh->PolygonType(); CPPUNIT_ASSERT( testMeshPolygonTypes[index] == polyType); unsigned int numberOfVertices = subMesh->PointCount(); CPPUNIT_ASSERT( testMeshPointCount[index] == numberOfVertices); for( unsigned int x = 0; x < numberOfVertices; ++x) { CPPUNIT_ASSERT_DOUBLES_EQUAL( *(testMesh + d), subMesh->Point(x).x / 64, 0.01); CPPUNIT_ASSERT_DOUBLES_EQUAL( *(testMesh + d + 1), subMesh->Point(x).y / 64, 0.01); d += 3; } } tearDownFreetype(); } void setUp() {} void tearDown() {} private: FT_Library library; FT_Face face; FT_Glyph glyph; void setUpFreetype() { FT_Error error = FT_Init_FreeType( &library); assert(!error); error = FT_New_Face( library, ARIAL_FONT_FILE, 0, &face); assert(!error); } void loadGlyph( unsigned int characterIndex) { long glyphIndex = FT_Get_Char_Index( face, characterIndex); FT_Set_Char_Size( face, 0L, FONT_POINT_SIZE * 64, RESOLUTION, RESOLUTION); FT_Error error = FT_Load_Glyph( face, glyphIndex, FT_LOAD_DEFAULT); assert(!error); error = FT_Get_Glyph( face->glyph, &glyph); assert(!error); } void tearDownFreetype() { FT_Done_Glyph( glyph); FT_Done_Face( face); FT_Done_FreeType( library); } }; CPPUNIT_TEST_SUITE_REGISTRATION( FTVectoriserTest);