Method executeInfo

tools/ktx/command_info.cpp:111–149

}

void CommandInfo::executeInfo() {
    InputStream inputStream(options.inputFilepath, *this);

    KTX_error_code result;
    bool v2 = true;

    ktx_uint8_t ktx_ident_ref[12] = KTX_IDENTIFIER_REF;
    ktx_uint8_t identifier[12] = {};
    inputStream->read((char*)identifier, 12);
    inputStream->clear();   // Clear an unexpected EOF so seekg works.
    inputStream->seekg(0);  // Rewind to give validation a clean slate.
    if (!memcmp(identifier, ktx_ident_ref, 12)) {
        if (options.format != OutputFormat::text)
            fatal_usage("JSON output formats are not supported for KTX v1 files.");
        v2 = false;
        StreambufStream<std::streambuf*> ktxStream{inputStream->rdbuf(), std::ios::in | std::ios::binary};
        result = ktxPrintKTX1InfoTextForStream(ktxStream.stream());
    } else {
        switch (options.format) {
        case OutputFormat::text:
            result = printInfoText(inputStream);
            break;
        case OutputFormat::json:
            result = printInfoJSON(inputStream, false);
            break;
        case OutputFormat::json_mini:
            result = printInfoJSON(inputStream, true);
            break;
        default:
            assert(false && "Internal error");
            return;
        }
    }

    if (result != KTX_SUCCESS)
        fatal(rc::INVALID_FILE, "Failed to process KTX {} file \"{}\": {}",
              v2 ? "v2" : "v1",
              fmtInFile(options.inputFilepath), ktxErrorString(result));
}

KTX_error_code CommandInfo::printInfoText(std::istream& file) {
    std::ostringstream messagesOS;