void MagnumFontConverterTest::exportFont() {
/* Remove previously created files */
Utility::Directory::rm(Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font.conf"));
Utility::Directory::rm(Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font.tga"));
/* Open font */
FreeTypeFont font;
CORRADE_VERIFY(font.openFile(Utility::Directory::join(FREETYPEFONT_TEST_DIR, "Oxygen.ttf"), 16.0f));
/* Create fake cache */
MAGNUM_ASSERT_EXTENSION_SUPPORTED(Extensions::GL::ARB::texture_rg);
GlyphCache cache(TextureFormat::R8, Vector2i(1536), Vector2i(256), Vector2i(24));
cache.insert(font.glyphId(U'W'), {25, 34}, {{0, 8}, {16, 128}});
cache.insert(font.glyphId(U'e'), {25, 12}, {{16, 4}, {64, 32}});
/* Convert the file */
MagnumFontConverter converter;
converter.exportFontToFile(font, cache, Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font"), "Wave");
/* Verify font parameters */
/** @todo This might behave differently elsewhere due to unspecified order of glyphs in cache */
CORRADE_COMPARE_AS(Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font.conf"),
Utility::Directory::join(MAGNUMFONT_TEST_DIR, "font.conf"),
TestSuite::Compare::File);
/* Verify font image, no need to test image contents, as the image is garbage anyway */
Trade::TgaImporter importer;
CORRADE_VERIFY(importer.openFile(Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font.tga")));
std::optional<Trade::ImageData2D> image = importer.image2D(0);
CORRADE_VERIFY(image);
CORRADE_COMPARE(image->size(), Vector2i(256));
CORRADE_COMPARE(image->format(), ImageFormat::Red);
CORRADE_COMPARE(image->type(), ImageType::UnsignedByte);
}
std::pair<Float, Float> MagnumFont::doOpenFile(const std::string& filename, Float) {
/* Open the configuration file */
Utility::Configuration conf(filename, Utility::Configuration::Flag::ReadOnly|Utility::Configuration::Flag::SkipComments);
if(!conf.isValid() || conf.isEmpty()) {
Error() << "Text::MagnumFont::openFile(): cannot open file" << filename << conf.isValid();
return {};
}
/* Check version */
if(conf.value<UnsignedInt>("version") != 1) {
Error() << "Text::MagnumFont::openFile(): unsupported file version, expected 1 but got"
<< conf.value<UnsignedInt>("version");
return {};
}
/* Open and load image file */
const std::string imageFilename = Utility::Directory::join(Utility::Directory::path(filename), conf.value("image"));
Trade::TgaImporter importer;
if(!importer.openFile(imageFilename)) {
Error() << "Text::MagnumFont::openFile(): cannot open image file" << imageFilename;
return {};
}
std::optional<Trade::ImageData2D> image = importer.image2D(0);
if(!image) {
Error() << "Text::MagnumFont::openFile(): cannot load image file";
return {};
}
return openInternal(std::move(conf), std::move(*image));
}
namespace Magnum { namespace Text { namespace Test {
class MagnumFontConverterGLTest: public Magnum::Test::AbstractOpenGLTester {
public:
explicit MagnumFontConverterGLTest();
void exportFont();
};
MagnumFontConverterGLTest::MagnumFontConverterGLTest() {
addTests({&MagnumFontConverterGLTest::exportFont});
}
void MagnumFontConverterGLTest::exportFont() {
/* Remove previously created files */
Utility::Directory::rm(Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font.conf"));
Utility::Directory::rm(Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font.tga"));
/* Fake font with fake cache */
class FakeFont: public Text::AbstractFont {
public:
explicit FakeFont(): _opened(false) {}
private:
void doClose() { _opened = false; }
bool doIsOpened() const { return _opened; }
std::pair<Float, Float> doOpenFile(const std::string&, Float) {
_opened = true;
return {16.0f, 39.7333f};
}
Features doFeatures() const { return {}; }
std::unique_ptr<AbstractLayouter> doLayout(const GlyphCache&, Float, const std::string&) { return nullptr; }
UnsignedInt doGlyphId(const char32_t character) {
switch(character) {
case 'W': return 2;
case 'e': return 1;
}
return 0;
}
Vector2 doGlyphAdvance(const UnsignedInt glyph) {
switch(glyph) {
case 0: return {8, 0};
case 1: return {12, 0};
case 2: return {23, 0};
}
CORRADE_ASSERT_UNREACHABLE();
}
bool _opened;
} font;
font.openFile({}, {});
/* Create fake cache */
MAGNUM_ASSERT_EXTENSION_SUPPORTED(Extensions::GL::ARB::texture_rg);
GlyphCache cache(TextureFormat::R8, Vector2i(1536), Vector2i(256), Vector2i(24));
cache.insert(font.glyphId(U'W'), {25, 34}, {{0, 8}, {16, 128}});
cache.insert(font.glyphId(U'e'), {25, 12}, {{16, 4}, {64, 32}});
/* Convert the file */
MagnumFontConverter converter;
converter.exportFontToFile(font, cache, Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font"), "Wave");
/* Verify font parameters */
/** @todo This might behave differently elsewhere due to unspecified order of glyphs in cache */
CORRADE_COMPARE_AS(Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font.conf"),
Utility::Directory::join(MAGNUMFONT_TEST_DIR, "font.conf"),
TestSuite::Compare::File);
/* Verify font image, no need to test image contents, as the image is garbage anyway */
Trade::TgaImporter importer;
CORRADE_VERIFY(importer.openFile(Utility::Directory::join(MAGNUMFONTCONVERTER_TEST_WRITE_DIR, "font.tga")));
std::optional<Trade::ImageData2D> image = importer.image2D(0);
CORRADE_VERIFY(image);
CORRADE_COMPARE(image->size(), Vector2i(256));
CORRADE_COMPARE(image->format(), ColorFormat::Red);
CORRADE_COMPARE(image->type(), ColorType::UnsignedByte);
}
}}}