ref: 4763aecdbdbb6802d2b30ea93f62377dc7dd3f1f
parent: d3e18d795d59fb2f380dd1df1faf2d95dece8ef4
author: Clownacy <Clownacy@users.noreply.github.com>
date: Thu Sep 17 20:59:05 EDT 2020
Correct Lanczos array initialisation I must have forgotten that Lanczos reads backwards too
--- a/src/Backends/Audio/SoftwareMixer/Mixer.cpp
+++ b/src/Backends/Audio/SoftwareMixer/Mixer.cpp
@@ -67,10 +67,6 @@
}
#ifdef LANCZOS_RESAMPLER
- // Blank samples outside the array bounds (we'll deal with the other half later)
- for (size_t i = 0; i < LANCZOS_KERNEL_RADIUS - 1; ++i)
- sound->samples[i] = 0;
-
sound->samples += LANCZOS_KERNEL_RADIUS - 1;
#endif
@@ -118,11 +114,21 @@
// either blank samples or repeated samples
#ifdef LANCZOS_RESAMPLER
if (looping)
- for (size_t i = 0; i < LANCZOS_KERNEL_RADIUS; ++i)
+ {+ for (int i = -LANCZOS_KERNEL_RADIUS + 1; i < 0; ++i)
+ sound->samples[i] = sound->samples[sound->frames + i];
+
+ for (int i = 0; i < LANCZOS_KERNEL_RADIUS; ++i)
sound->samples[sound->frames + i] = sound->samples[i];
+ }
else
- for (size_t i = 0; i < LANCZOS_KERNEL_RADIUS; ++i)
+ {+ for (int i = -LANCZOS_KERNEL_RADIUS + 1; i < 0; ++i)
+ sound->samples[i] = 0;
+
+ for (int i = 0; i < LANCZOS_KERNEL_RADIUS; ++i)
sound->samples[sound->frames + i] = 0;
+ }
#else
sound->samples[sound->frames] = looping ? sound->samples[0] : 0;
#endif