#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);
