1 files changed, 38 insertions, 0 deletions

diff --git a/lib/MThd.cc b/lib/MThd.cc
new file mode 100644
index 0000000..110c98a
--- a/dev/null
+++ b/lib/MThd.cc
@@ -0,0 +1,38 @@
+#include <midillo/MThd.h>
+#include <midillo/util.h>
+#include <midillo/exception.h>
+
+namespace midillo {
+    using std::endl;
+
+    void MThd_t::load(istream& s) {
+        header.load(s);
+        if(header.id_number!=chunk_id_MThd)
+            throw exception_unexpected_input(CODEPOINT,"MThd chunk expected");
+        if(header.length!=6)
+            throw exception_invalid_input(CODEPOINT,"MThd chunk is not 6 bytes long");
+        load_data(s);
+    }
+
+    void MThd_t::load_data(istream& s) {
+        fmt = read16(s);
+        ntracks = read16(s);
+        division = read16(s);
+    }
+
+    void MThd_t::save(ostream& s) const {
+        header.save(s);
+        write16(s,fmt);
+        write16(s,ntracks);
+        write16(s,division);
+    }
+
+    void MThd_t::dump(ostream& s) const {
+        std::ios::fmtflags ff = s.flags();
+        s.unsetf(std::ios::hex); s.setf(std::ios::dec);
+        s << " " << header << endl
+            << "  fmt=" << fmt << ", " << ntracks << " track(s), division=" << division << endl;
+        s.flags(ff);
+    }
+
+}