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-rw-r--r--src/libgamma-method.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/libgamma-method.h b/src/libgamma-method.h
index f9d625a..58b364d 100644
--- a/src/libgamma-method.h
+++ b/src/libgamma-method.h
@@ -525,9 +525,11 @@ typedef struct libgamma_crtc_information
/**
- * The bit-depth of the value axes of gamma ramps
+ * The bit-depth of the value axes of gamma ramps,
+ * -1 for single precision floating point, and -2 for
+ * double precision floating point.
*/
- size_t gamma_depth;
+ signed gamma_depth;
/**
* Zero on success, positive it holds the value `errno` had