diff options
Diffstat (limited to 'audio/softsynth/mt32/LA32Ramp.cpp')
| -rw-r--r-- | audio/softsynth/mt32/LA32Ramp.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/audio/softsynth/mt32/LA32Ramp.cpp b/audio/softsynth/mt32/LA32Ramp.cpp index 9f1f01c3c2..4e4d6b4f30 100644 --- a/audio/softsynth/mt32/LA32Ramp.cpp +++ b/audio/softsynth/mt32/LA32Ramp.cpp @@ -79,11 +79,12 @@ LA32Ramp::LA32Ramp() : void LA32Ramp::startRamp(Bit8u target, Bit8u increment) { // CONFIRMED: From sample analysis, this appears to be very accurate. - // FIXME: We could use a table for this in future if (increment == 0) { largeIncrement = 0; } else { - largeIncrement = (unsigned int)(EXP2F(((increment & 0x7F) + 24) / 8.0f) + 0.125f); + // Using integer argument here, no precision loss: + // (unsigned int)(EXP2F(((increment & 0x7F) + 24) / 8.0f) + 0.125f) + largeIncrement = (unsigned int)(EXP2I(((increment & 0x7F) + 24) << 9) + 0.125f); } descending = (increment & 0x80) != 0; if (descending) { |