//-----------------------------------------------------------------------
void TrueTypeFont::Impl::LoadFont(AssetManager const& assets, std::string const& fontPath)
{
auto binaryFile = assets.OpenStream(fontPath);
if (!binaryFile.Stream) {
POMDOG_THROW_EXCEPTION(std::runtime_error, "Failed to open file");
}
if (binaryFile.SizeInBytes <= 0) {
POMDOG_THROW_EXCEPTION(std::runtime_error, "The file is too small");
}
Reset();
using Pomdog::Detail::BinaryReader;
ttfBinary = BinaryReader::ReadArray<std::uint8_t>(binaryFile.Stream, binaryFile.SizeInBytes);
const auto offset = stbtt_GetFontOffsetForIndex(ttfBinary.data(), 0);
if (!stbtt_InitFont(&fontInfo, ttfBinary.data(), offset)) {
ttfBinary.clear();
// FUS RO DAH
POMDOG_THROW_EXCEPTION(std::runtime_error,
"Failed to initialize truetype font");
}
}
ParticleClip ParticleLoader::LoadFromJson(AssetManager & assets, std::string const& assetName)
{
POMDOG_ASSERT(!assetName.empty());
using Detail::BinaryReader;
auto binaryFile = assets.OpenStream(assetName);
if (!binaryFile.Stream) {
POMDOG_THROW_EXCEPTION(std::runtime_error, "Failed to open file");
}
if (binaryFile.SizeInBytes <= 0) {
POMDOG_THROW_EXCEPTION(std::runtime_error, "The file is too small");
}
auto json = BinaryReader::ReadString<char>(binaryFile.Stream, binaryFile.SizeInBytes);
POMDOG_ASSERT(!json.empty());
if (json.empty()) {
POMDOG_THROW_EXCEPTION(std::runtime_error, "The file is too small");
}
rapidjson::Document doc;
doc.Parse(json.data());
if (doc.HasParseError() || !doc.IsObject() || doc.MemberBegin() == doc.MemberEnd()) {
// FUS RO DAH
POMDOG_THROW_EXCEPTION(std::runtime_error, "Failed to parse JSON");
}
auto member = doc.MemberBegin();
if (!member->name.IsString() || !member->value.IsObject()) {
// FUS RO DAH
POMDOG_THROW_EXCEPTION(std::runtime_error, "Invalid file format");
}
POMDOG_ASSERT(member->name.IsString());
POMDOG_ASSERT(member->value.IsObject());
return ReadParticleClip(member->value);
}