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Merge branch 'loomai-master'

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Syoyo Fujita 2018-11-10 20:07:47 +09:00
commit 90c0008b0e
1 changed files with 40 additions and 5 deletions
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tiny_gltf.h
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@ -924,7 +924,8 @@ class TinyGLTF {
bool WriteGltfSceneToFile(Model *model, const std::string &filename,
bool embedImages,
bool embedBuffers,
bool prettyPrint /*, bool writeBinary*/);
bool prettyPrint,
bool writeBinary);
///
/// Set callback to use for loading image data
@ -4541,11 +4542,40 @@ static bool WriteGltfFile(const std::string &output,
return true;
}
static void WriteBinaryGltfFile(const std::string &output,
const std::string &content) {
std::ofstream gltfFile(output.c_str(), std::ios::binary);
const std::string header = "glTF";
const int version = 2;
const int padding_size = content.size() % 4;
// 12 bytes for header, JSON content length, 8 bytes for JSON chunk info, padding
const int length = 12 + 8 + content.size() + padding_size;
gltfFile.write(header.c_str(), header.size());
gltfFile.write(reinterpret_cast<const char *>(&version), sizeof(version));
gltfFile.write(reinterpret_cast<const char *>(&length), sizeof(length));
// JSON chunk info, then JSON data
const int model_length = content.size() + padding_size;
const int model_format = 0x4E4F534A;
gltfFile.write(reinterpret_cast<const char *>(&model_length), sizeof(model_length));
gltfFile.write(reinterpret_cast<const char *>(&model_format), sizeof(model_format));
gltfFile.write(content.c_str(), content.size());
// Chunk must be multiplies of 4, so pad with spaces
if (padding_size > 0) {
const std::string padding = std::string(padding_size, ' ');
gltfFile.write(padding.c_str(), padding.size());
}
}
bool TinyGLTF::WriteGltfSceneToFile(Model *model, const std::string &filename,
bool embedImages = false,
bool embedBuffers = false,
bool prettyPrint = true
/*, bool writeBinary*/) {
bool prettyPrint = true,
bool writeBinary = false) {
json output;
// ACCESSORS
@ -4783,8 +4813,13 @@ bool TinyGLTF::WriteGltfSceneToFile(Model *model, const std::string &filename,
SerializeValue("extras", model->extras, output);
}
// pretty printing with spacing 2
return WriteGltfFile(filename, output.dump(prettyPrint ? 2 : 0));
if (writeBinary) {
WriteBinaryGltfFile(filename, output.dump());
} else {
WriteGltfFile(filename, output.dump(prettyPrint ? 2 : 0));
}
return true;
}
} // namespace tinygltf