util: Add SATURATE macro

[mesa.git] / src / util / macros.h

diff --git a/src/util/macros.h b/src/util/macros.h
index 55dd80c870b3c6b1c9c0262bf9b23cc93118a260..57beaf72fae31f8f4bfba7cafb7e2ef33c31b057 100644 (file)
--- a/src/util/macros.h
+++ b/src/util/macros.h
@@ -291,6 +291,9 @@ do {                       \
 /** Clamp X to [MIN,MAX].  Turn NaN into MIN, arbitrarily. */
 #define CLAMP( X, MIN, MAX )  ( (X)>(MIN) ? ((X)>(MAX) ? (MAX) : (X)) : (MIN) )
 
+/* Syntax sugar occuring frequently in graphics code */
+#define SATURATE( X ) CLAMP(X, 0.0f, 1.0f)
+
 /** Minimum of two values: */
 #define MIN2( A, B )   ( (A)<(B) ? (A) : (B) )
 
@@ -332,4 +335,18 @@ do {                       \
 #define BITFIELD64_RANGE(b, count) \
    (BITFIELD64_MASK((b) + (count)) & ~BITFIELD64_MASK(b))
 
+/* TODO: In future we should try to move this to u_debug.h once header
+ * dependencies are reorganised to allow this.
+ */
+enum pipe_debug_type
+{
+   PIPE_DEBUG_TYPE_OUT_OF_MEMORY = 1,
+   PIPE_DEBUG_TYPE_ERROR,
+   PIPE_DEBUG_TYPE_SHADER_INFO,
+   PIPE_DEBUG_TYPE_PERF_INFO,
+   PIPE_DEBUG_TYPE_INFO,
+   PIPE_DEBUG_TYPE_FALLBACK,
+   PIPE_DEBUG_TYPE_CONFORMANCE,
+};
+
 #endif /* UTIL_MACROS_H */