zynaddsubfx

commit 30d1929a6ebdb15ed851ebb999c5d6356d9448e6
parent e28c988dfbd29ec6e3d388d377d5c9d1d11ec25a
Author: Hans Petter Selasky <hps@selasky.org>
Date:   Fri, 20 Nov 2020 12:53:20 +0100

Fix compile warning for clang.
Single precision floating point values only have a 24-bit mantissa.
Make sure constant fits into the mantissa.

Signed-off-by: Hans Petter Selasky <hps@selasky.org>

Diffstat:
M
src/Misc/Util.h
 | 
6
+++---
M
src/Synth/SynthNote.cpp
 | 
2
+-

2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/Misc/Util.h b/src/Misc/Util.h
@@ -141,10 +141,10 @@ inline void sprng(prng_t p)
 /*
  * The random generator (0.0f..1.0f)
  */
-#ifndef INT32_MAX
-#define INT32_MAX      (2147483647)
+#ifndef INT32_MAX_FLOAT
+#define INT32_MAX_FLOAT   0x7fffff80	/* the float mantissa is only 24-bit */
 #endif
-#define RND (prng() / (INT32_MAX * 1.0f))
+#define RND (prng() / (INT32_MAX_FLOAT * 1.0f))
 
 //Linear Interpolation
 float interpolate(const float *data, size_t len, float pos);
diff --git a/src/Synth/SynthNote.cpp b/src/Synth/SynthNote.cpp
@@ -193,7 +193,7 @@ float SynthNote::getFilterCutoffRelFreq(void)
 }
 
 float SynthNote::getRandomFloat() {
-    return (getRandomUint() / (INT32_MAX * 1.0f));
+    return (getRandomUint() / (INT32_MAX_FLOAT * 1.0f));
 }
 
 prng_t SynthNote::getRandomUint() {