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-rw-r--r--audio/softsynth/opl/mame.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/audio/softsynth/opl/mame.cpp b/audio/softsynth/opl/mame.cpp
index c875080e8f..b4bbcb5ab3 100644
--- a/audio/softsynth/opl/mame.cpp
+++ b/audio/softsynth/opl/mame.cpp
@@ -708,7 +708,7 @@ static int OPLOpenTable(void) {
/* degree 0 = degree 180 = off */
SIN_TABLE[0] = SIN_TABLE[SIN_ENT /2 ] = &TL_TABLE[EG_ENT - 1];
for (s = 1;s <= SIN_ENT / 4; s++) {
- pom = sin(2 * PI * s / SIN_ENT); /* sin */
+ pom = sin(2 * M_PI * s / SIN_ENT); /* sin */
pom = 20 * log10(1 / pom); /* decibel */
j = int(pom / EG_STEP); /* TL_TABLE steps */
@@ -739,14 +739,14 @@ static int OPLOpenTable(void) {
ENV_CURVE[EG_OFF >> ENV_BITS]= EG_ENT - 1;
/* make LFO ams table */
for (i=0; i < AMS_ENT; i++) {
- pom = (1.0 + sin(2 * PI * i / AMS_ENT)) / 2; /* sin */
+ pom = (1.0 + sin(2 * M_PI * i / AMS_ENT)) / 2; /* sin */
AMS_TABLE[i] = (int)((1.0 / EG_STEP) * pom); /* 1dB */
AMS_TABLE[AMS_ENT + i] = (int)((4.8 / EG_STEP) * pom); /* 4.8dB */
}
/* make LFO vibrate table */
for (i=0; i < VIB_ENT; i++) {
/* 100cent = 1seminote = 6% ?? */
- pom = (double)VIB_RATE * 0.06 * sin(2 * PI * i / VIB_ENT); /* +-100sect step */
+ pom = (double)VIB_RATE * 0.06 * sin(2 * M_PI * i / VIB_ENT); /* +-100sect step */
VIB_TABLE[i] = (int)(VIB_RATE + (pom * 0.07)); /* +- 7cent */
VIB_TABLE[VIB_ENT + i] = (int)(VIB_RATE + (pom * 0.14)); /* +-14cent */
}