1 files changed, 26 insertions, 0 deletions
diff --git a/src/adlmidi_private.hpp b/src/adlmidi_private.hpp
index 271bc5e..b60c7c0 100644
--- a/src/adlmidi_private.hpp
+++ b/src/adlmidi_private.hpp
@@ -153,6 +153,32 @@ inline int32_t adl_cvtS8(int32_t x)
 {
     return adl_cvtS16(x) / 256;
 }
+inline int32_t adl_cvtS24(int32_t x)
+{
+    return adl_cvtS16(x) * 256;
+}
+inline int32_t adl_cvtS32(int32_t x)
+{
+    return adl_cvtS16(x) * 65536;
+}
+inline int32_t adl_cvtU16(int32_t x)
+{
+    return adl_cvtS16(x) - INT16_MIN;
+}
+inline int32_t adl_cvtU8(int32_t x)
+{
+    return adl_cvtS8(x) - INT8_MIN;
+}
+inline int32_t adl_cvtU24(int32_t x)
+{
+    enum { int24_min = -(1 << 23) };
+    return adl_cvtS24(x) - int24_min;
+}
+inline int32_t adl_cvtU32(int32_t x)
+{
+    // unsigned operation because overflow on signed integers is undefined
+    return (uint32_t)adl_cvtS32(x) - (uint32_t)INT32_MIN;
+}
 
 /*
     Smart pointer for C heaps, created with malloc() call.