From f41aefb19af7579ec326c180106ae2904a917d4c Mon Sep 17 00:00:00 2001
From: Mattias Andrée <maandree@operamail.com>
Date: Sat, 13 Sep 2014 14:09:33 +0200
Subject: move out test mapping functions from test.c into ramps.c
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Signed-off-by: Mattias Andrée <maandree@operamail.com>
---
 src/test/ramps.h | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)

(limited to 'src/test/ramps.h')

diff --git a/src/test/ramps.h b/src/test/ramps.h
index 050ac59..5ea2844 100644
--- a/src/test/ramps.h
+++ b/src/test/ramps.h
@@ -19,6 +19,14 @@
 #define LIBGAMMA_TEST_RAMPS_H
 
 
+#include <stdint.h>
+
+
+#ifndef __GCC__
+# define __attribute__(x)
+#endif
+
+
 /**
  * X macros of all integer gamma ramps
  */
@@ -39,5 +47,56 @@
    preserved exactly on exit, and we assume RandR X is used. */
 
 
+
+/**
+ * Test mapping function from [0, 1] float encoding value to [0, 2⁸ − 1] integer output value.
+ * 
+ * @param   encoding  [0, 1] float encoding value.
+ * @return            [0, 2⁸ − 1] integer output value.
+ */
+uint8_t invert_ramps8(float encoding) __attribute__((const));
+
+/**
+ * Test mapping function from [0, 1] float encoding value to [0, 2¹⁶ − 1] integer output value.
+ * 
+ * @param   encoding  [0, 1] float encoding value.
+ * @return            [0, 2¹⁶ − 1] integer output value.
+ */
+uint16_t invert_ramps16(float encoding) __attribute__((const));
+
+/**
+ * Test mapping function from [0, 1] float encoding value to [0, 2³² − 1] integer output value.
+ * 
+ * @param   encoding  [0, 1] float encoding value.
+ * @return            [0, 2³² − 1] integer output value.
+ */
+uint32_t invert_ramps32(float encoding) __attribute__((const));
+
+/**
+ * Test mapping function from [0, 1] float encoding value to [0, 2⁶⁴ − 1] integer output value.
+ * 
+ * @param   encoding  [0, 1] float encoding value.
+ * @return            [0, 2⁶⁴ − 1] integer output value.
+ */
+uint64_t invert_ramps64(float encoding) __attribute__((const));
+
+/**
+ * Test mapping function from [0, 1] float encoding value to [0, 1] float output value.
+ * 
+ * @param   encoding  [0, 1] float encoding value.
+ * @return            [0, 1] float output value.
+ */
+float invert_rampsf(float encoding) __attribute__((const));
+
+/**
+ * Test mapping function from [0, 1] double precision float encoding
+ * value to [0, 1] double precision float output value.
+ * 
+ * @param   encoding  [0, 1] float encoding value.
+ * @return            [0, 1] float output value.
+ */
+double invert_rampsd(double encoding) __attribute__((const));
+
+
 #endif
 
-- 
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