1 files changed, 10 insertions, 0 deletions
diff --git a/src/gmisc/sys_defs.h b/src/gmisc/sys_defs.h
index cbb0111b..41a9bca6 100644
--- a/src/gmisc/sys_defs.h
+++ b/src/gmisc/sys_defs.h
@@ -40,6 +40,16 @@ typedef enum ArrayDataFormat_e {
 	} ArrayDataFormat;
 
 /**
+ * @brief	Is the sample data format a "signed" data format?
+ */
+#define gfxSampleFormatIsSigned(fmt)	((fmt) & 1)
+
+/**
+ * @brief	How many bits are in the sample data format
+ */
+#define gfxSampleFormatBits(fmt)	((fmt) & ~1)
+
+/**
  * @brief   The type for a fixed point type.
  * @details	The top 16 bits are the integer component, the bottom 16 bits are the real component.
  */