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#include <mbgl/test/util.hpp>
#include <mbgl/text/glyph_set.hpp>
#include <mbgl/text/glyph_atlas_observer.hpp>
#include <mbgl/text/glyph_atlas.hpp>
#include <mbgl/text/glyph_pbf.hpp>
#include <mbgl/storage/default_file_source.hpp>
#include <mbgl/util/run_loop.hpp>
#include <mbgl/util/string.hpp>
#include <future>
using namespace mbgl;
using namespace std::string_literals;
class MockGlyphAtlasObserver : public GlyphAtlasObserver {
public:
std::function<void(const FontStack&, const GlyphRange&)> glyphsLoaded;
std::function<void(const FontStack&, const GlyphRange&, std::exception_ptr)> glyphsError;
void onGlyphsLoaded(const FontStack& fontStack, const GlyphRange& glyphRange) override {
if (glyphsLoaded) {
glyphsLoaded(fontStack, glyphRange);
}
}
void onGlyphsError(const FontStack& fontStack, const GlyphRange& glyphRange, std::exception_ptr error) override {
if (glyphsError) {
glyphsError(fontStack, glyphRange, error);
}
}
};
TEST(GlyphPBF, Parsing) {
util::RunLoop loop;
DefaultFileSource fileSource{ ":memory:", "." };
GlyphAtlas glyphAtlas{ { 1024, 1024 }, fileSource };
FontStack fontStack{ "fake_glyphs" };
GlyphRange glyphRange{ 0, 255 };
glyphAtlas.setURL("asset://test/fixtures/resources/{fontstack}-{range}.pbf");
MockGlyphAtlasObserver glyphAtlasObserver;
glyphAtlasObserver.glyphsLoaded = [&](const FontStack&, const GlyphRange&) {
loop.stop();
const auto& sdfs = glyphAtlas.getGlyphSet(fontStack)->getSDFs();
// The fake glyphs don't contain a glyph that has the ID 0; it only contains glyphs with
// undefined IDs, but the parser should remove them.
EXPECT_TRUE(sdfs.size() == 1);
EXPECT_TRUE(sdfs.find(69) != sdfs.end());
auto& sdf = sdfs.at(69);
AlphaImage expected({7, 7});
expected.fill('x');
EXPECT_EQ(expected, sdf.bitmap);
EXPECT_EQ(1u, sdf.metrics.width);
EXPECT_EQ(1u, sdf.metrics.height);
EXPECT_EQ(20, sdf.metrics.left);
EXPECT_EQ(2, sdf.metrics.top);
EXPECT_EQ(8u, sdf.metrics.advance);
};
glyphAtlasObserver.glyphsError = [&](const FontStack&, const GlyphRange&, std::exception_ptr error) {
loop.stop();
FAIL() << util::toString(error);
};
GlyphPBF pbf(&glyphAtlas, fontStack, glyphRange, &glyphAtlasObserver, fileSource);
loop.run();
}
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