shithub: sf2mid

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- Fix certain presets for which the state of the lowpass filter was not stored across multiple voice render calls
- Allow custom values for TSF_RENDER_EFFECTSAMPLEBLOCK in user code

--- a/tsf.h

+++ b/tsf.h

@@ -154,7 +154,9 @@

 // The lower this block size is the more accurate the effects are.

 // Increasing the value significantly lowers the CPU usage of the voice rendering.

 // If LFO affects the low-pass filter it can be hearable even as low as 8.

+#ifndef TSF_RENDER_EFFECTSAMPLEBLOCK

 #define TSF_RENDER_EFFECTSAMPLEBLOCK 64

+#endif

 // Grace release time for quick voice off (avoid clicking noise)

 #define TSF_FASTRELEASETIME 0.01f

@@ -991,7 +993,7 @@

 	}

 	v->sourceSamplePosition = tmpSourceSamplePosition;

-	if (dynamicLowpass) v->lowpass = tmpLowpass;

+	if (tmpLowpass.active || dynamicLowpass) v->lowpass = tmpLowpass;

 }

 TSFDEF tsf* tsf_load(struct tsf_stream* stream)