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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[] = { 28, 0, 0.0, 28, 4.53125, 0.0, 26.4756, 2.54, 0.0, 24.69, 0.99125, 0.0, 22.6431, -0.115, 0.0, 20.335, -0.77875, 0.0, 17.7656, -1, 0.0, 16.0434, -0.901563, 0.0, 14.3769, -0.60625, 0.0, 12.7659, -0.114062, 0.0, 11.2106, 0.575, 0.0, 9.71094, 1.46094, 0.0, 8.30562, 2.52344, 0.0, 7.03344, 3.74219, 0.0, 5.89437, 5.11719, 0.0, 4.88844, 6.64844, 0.0, 4.01562, 8.33594, 0.0, 3.29, 10.1538, 0.0, 2.72563, 12.0759, 0.0, 2.3225, 14.1025, 0.0, 2.08063, 16.2334, 0.0, 2, 18.4688, 0.0, 2.07312, 20.6591, 0.0, 2.2925, 22.7675, 0.0, 2.65812, 24.7941, 0.0, 3.17, 26.7388, 0.0, 3.82812, 28.6016, 0.0, 4.6325, 30.3381, 0.0, 5.58313, 31.9041, 0.0, 6.68, 33.2994, 0.0, 7.92313, 34.5241, 0.0, 9.3125, 35.5781, 0.0, 10.8088, 36.45, 0.0, 12.3725, 37.1281, 0.0, 14.0038, 37.6125, 0.0, 15.7025, 37.9031, 0.0, 17.4688, 38, 0.0, 18.7647, 37.9438, 0.0, 20.0025, 37.775, 0.0, 21.1822, 37.4938, 0.0, 22.3038, 37.1, 0.0, 23.3672, 36.5938, 0.0, 24.3631, 35.9975, 0.0, 25.2822, 35.3338, 0.0, 26.1244, 34.6025, 0.0, 26.8897, 33.8037, 0.0, 27.5781, 32.9375, 0.0, 27.5781, 51, 0.0, 34, 51, 0.0, 34, 0, 0.0, 8.375, 18.4844, 0.0, 8.49312, 15.7491, 0.0, 8.8475, 13.3056, 0.0, 9.43813, 11.1541, 0.0, 10.265, 9.29437, 0.0, 11.3281, 7.72656, 0.0, 12.5519, 6.44688, 0.0, 13.8606, 5.45156, 0.0, 15.2544, 4.74062, 0.0, 16.7331, 4.31406, 0.0, 18.2969, 4.17188, 0.0, 19.8669, 4.30781, 0.0, 21.3394, 4.71563, 0.0, 22.7144, 5.39531, 0.0, 23.9919, 6.34688, 0.0, 25.1719, 7.57031, 0.0, 26.19, 9.07312, 0.0, 26.9819, 10.8628, 0.0, 27.5475, 12.9394, 0.0, 27.8869, 15.3028, 0.0, 28, 17.9531, 0.0, 27.8847, 20.8591, 0.0, 27.5388, 23.4394, 0.0, 26.9622, 25.6941, 0.0, 26.155, 27.6231, 0.0, 25.1172, 29.2266, 0.0, 23.9106, 30.5231, 0.0, 22.5972, 31.5316, 0.0, 21.1769, 32.2519, 0.0, 19.6497, 32.6841, 0.0, 18.0156, 32.8281, 0.0, 16.4203, 32.69, 0.0, 14.9344, 32.2756, 0.0, 13.5578, 31.585, 0.0, 12.2906, 30.6181, 0.0, 11.1328, 29.375, 0.0, 10.14, 27.8344, 0.0, 9.36781, 25.975, 0.0, 8.81625, 23.7969, 0.0, 8.48531, 21.3, 0.0, 8.375, 18.4844, 0.0 }; static GLenum testMeshPolygonTypes[] = { GL_TRIANGLE_FAN, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_TRIANGLE_FAN, GL_TRIANGLE_FAN, GL_TRIANGLE_STRIP, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_TRIANGLE_STRIP, GL_TRIANGLES }; static unsigned int testMeshPointCount[] = { 8, 7, 7, 11, 7, 9, 5, 6, 6, 7, 17, 6, 19, 3, }; static double testMesh[] = { 28, 4.53125, 0.0, 28, 0, 0.0, 34, 0, 0.0, 28, 17.9531, 0.0, 27.8869, 15.3028, 0.0, 27.5475, 12.9394, 0.0, 26.9819, 10.8628, 0.0, 26.4756, 2.54, 0.0, 26.9819, 10.8628, 0.0, 26.19, 9.07312, 0.0, 26.4756, 2.54, 0.0, 25.1719, 7.57031, 0.0, 24.69, 0.99125, 0.0, 23.9919, 6.34688, 0.0, 22.7144, 5.39531, 0.0, 24.69, 0.99125, 0.0, 22.7144, 5.39531, 0.0, 22.6431, -0.115, 0.0, 21.3394, 4.71563, 0.0, 20.335, -0.77875, 0.0, 19.8669, 4.30781, 0.0, 18.2969, 4.17188, 0.0, 20.335, -0.77875, 0.0, 18.2969, 4.17188, 0.0, 17.7656, -1, 0.0, 16.7331, 4.31406, 0.0, 16.0434, -0.901563, 0.0, 15.2544, 4.74062, 0.0, 14.3769, -0.60625, 0.0, 13.8606, 5.45156, 0.0, 12.7659, -0.114062, 0.0, 12.5519, 6.44688, 0.0, 11.3281, 7.72656, 0.0, 12.7659, -0.114062, 0.0, 11.3281, 7.72656, 0.0, 11.2106, 0.575, 0.0, 10.265, 9.29437, 0.0, 9.71094, 1.46094, 0.0, 9.43813, 11.1541, 0.0, 8.8475, 13.3056, 0.0, 8.81625, 23.7969, 0.0, 9.3125, 35.5781, 0.0, 8.48531, 21.3, 0.0, 7.92313, 34.5241, 0.0, 8.375, 18.4844, 0.0, 8.30562, 2.52344, 0.0, 8.49312, 15.7491, 0.0, 9.71094, 1.46094, 0.0, 8.8475, 13.3056, 0.0, 34, 51, 0.0, 27.5781, 51, 0.0, 27.8847, 20.8591, 0.0, 28, 17.9531, 0.0, 34, 0, 0.0, 27.5781, 32.9375, 0.0, 26.8897, 33.8037, 0.0, 26.9622, 25.6941, 0.0, 27.5388, 23.4394, 0.0, 27.8847, 20.8591, 0.0, 27.5781, 51, 0.0, 26.155, 27.6231, 0.0, 26.9622, 25.6941, 0.0, 26.8897, 33.8037, 0.0, 26.1244, 34.6025, 0.0, 25.2822, 35.3338, 0.0, 25.1172, 29.2266, 0.0, 22.3038, 37.1, 0.0, 22.5972, 31.5316, 0.0, 23.3672, 36.5938, 0.0, 23.9106, 30.5231, 0.0, 24.3631, 35.9975, 0.0, 25.1172, 29.2266, 0.0, 25.2822, 35.3338, 0.0, 11.1328, 29.375, 0.0, 12.2906, 30.6181, 0.0, 12.3725, 37.1281, 0.0, 13.5578, 31.585, 0.0, 14.0038, 37.6125, 0.0, 14.9344, 32.2756, 0.0, 15.7025, 37.9031, 0.0, 16.4203, 32.69, 0.0, 17.4688, 38, 0.0, 18.0156, 32.8281, 0.0, 18.7647, 37.9438, 0.0, 19.6497, 32.6841, 0.0, 20.0025, 37.775, 0.0, 21.1769, 32.2519, 0.0, 21.1822, 37.4938, 0.0, 22.5972, 31.5316, 0.0, 22.3038, 37.1, 0.0, 10.8088, 36.45, 0.0, 9.3125, 35.5781, 0.0, 9.36781, 25.975, 0.0, 10.14, 27.8344, 0.0, 11.1328, 29.375, 0.0, 12.3725, 37.1281, 0.0, 8.30562, 2.52344, 0.0, 7.92313, 34.5241, 0.0, 7.03344, 3.74219, 0.0, 6.68, 33.2994, 0.0, 5.89437, 5.11719, 0.0, 5.58313, 31.9041, 0.0, 4.88844, 6.64844, 0.0, 4.6325, 30.3381, 0.0, 4.01562, 8.33594, 0.0, 3.82812, 28.6016, 0.0, 3.29, 10.1538, 0.0, 3.17, 26.7388, 0.0, 2.72563, 12.0759, 0.0, 2.65812, 24.7941, 0.0, 2.3225, 14.1025, 0.0, 2.2925, 22.7675, 0.0, 2.08063, 16.2334, 0.0, 2.07312, 20.6591, 0.0, 2, 18.4688, 0.0, 9.3125, 35.5781, 0.0, 8.81625, 23.7969, 0.0, 9.36781, 25.975, 0.0 }; class FTVectoriserTest : public CppUnit::TestCase { CPPUNIT_TEST_SUITE( FTVectoriserTest); CPPUNIT_TEST( testFreetypeVersion); 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 testFreetypeVersion() { setUpFreetype( NULL_CHARACTER_INDEX); FT_Int major; FT_Int minor; FT_Int patch; FT_Library_Version( library, &major, &minor, &patch); // If you hit these asserts then you have the wrong library version to run the tests. // You can still run the tests but some will fail because the hinter changed in 2.1.4 CPPUNIT_ASSERT( major == 2); CPPUNIT_ASSERT( minor == 1); CPPUNIT_ASSERT( patch >= 4); tearDownFreetype(); } void testNullGlyphProcess() { FTVectoriser vectoriser( NULL); CPPUNIT_ASSERT( vectoriser.ContourCount() == 0); } void testBadGlyphProcess() { setUpFreetype( NULL_CHARACTER_INDEX); FTVectoriser vectoriser( face->glyph); CPPUNIT_ASSERT( vectoriser.ContourCount() == 0); tearDownFreetype(); } void testSimpleGlyphProcess() { setUpFreetype( SIMPLE_CHARACTER_INDEX); FTVectoriser vectoriser( face->glyph); CPPUNIT_ASSERT( vectoriser.ContourCount() == 2); CPPUNIT_ASSERT( vectoriser.PointCount() == 8); tearDownFreetype(); } void testComplexGlyphProcess() { setUpFreetype( COMPLEX_CHARACTER_INDEX); FTVectoriser vectoriser( face->glyph); CPPUNIT_ASSERT( vectoriser.ContourCount() == 2); CPPUNIT_ASSERT( vectoriser.PointCount() == 91); tearDownFreetype(); } void testGetContour() { setUpFreetype( SIMPLE_CHARACTER_INDEX); FTVectoriser vectoriser( face->glyph); CPPUNIT_ASSERT( vectoriser.Contour(1)); CPPUNIT_ASSERT( vectoriser.Contour(99) == NULL); tearDownFreetype(); } void testGetOutline() { setUpFreetype( COMPLEX_CHARACTER_INDEX); FTVectoriser vectoriser( face->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( SIMPLE_CHARACTER_INDEX); FTVectoriser vectoriser( face->glyph); CPPUNIT_ASSERT( vectoriser.GetMesh() == NULL); vectoriser.MakeMesh( FTGL_FRONT_FACING); CPPUNIT_ASSERT( vectoriser.GetMesh()); } void testMakeMesh() { setUpFreetype( COMPLEX_CHARACTER_INDEX); FTVectoriser vectoriser( face->glyph); vectoriser.MakeMesh( FTGL_FRONT_FACING); 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; void setUpFreetype( unsigned int characterIndex) { FT_Error error = FT_Init_FreeType( &library); assert(!error); error = FT_New_Face( library, ARIAL_FONT_FILE, 0, &face); assert(!error); loadGlyph( characterIndex); } 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); } void tearDownFreetype() { FT_Done_Face( face); FT_Done_FreeType( library); } }; CPPUNIT_TEST_SUITE_REGISTRATION( FTVectoriserTest);