shithub: pt2-clone

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Fix: Filter coeffs were not recalculated during MOD2WAV

--- a/src/pt2_audio.c

+++ b/src/pt2_audio.c

@@ -750,6 +750,28 @@

 	calcRCFilterCoeffs(audio.outputRate, fc, &filterHiA1200);

 }

+void recalcFilterCoeffs(int32_t outputRate) // for MOD2WAV

+{

+	const bool audioWasntLocked = !audio.locked;

+	if (audioWasntLocked)

+		lockAudio();

+

+	const int32_t oldOutputRate = audio.outputRate;

+	audio.outputRate = outputRate;

+

+	clearRCFilterState(&filterLoA500);

+	clearRCFilterState(&filterLoA1200);

+	clearRCFilterState(&filterHiA500);

+	clearRCFilterState(&filterHiA1200);

+	clearLEDFilterState(&filterLED);

+

+	calculateFilterCoeffs();

+

+	audio.outputRate = oldOutputRate;

+	if (audioWasntLocked)

+		unlockAudio();

+}

+

 static void setVoicePan(int32_t ch, double pan) // pan = 0.0 .. 1.0

 {

 	// constant power panning

--- a/src/pt2_audio.h

+++ b/src/pt2_audio.h

@@ -54,6 +54,7 @@

 void normalizeFloatTo8Bit(float *fSampleData, uint32_t sampleLength);

 void normalizeDoubleTo8Bit(double *dSampleData, uint32_t sampleLength);

+void recalcFilterCoeffs(int32_t outputRate); // for MOD2WAV

 void setLEDFilter(bool state, bool doLockAudio);

 void toggleLEDFilter(void);

 void toggleAmigaPanMode(void);

--- a/src/pt2_mod2wav.c

+++ b/src/pt2_mod2wav.c

@@ -35,6 +35,9 @@

 	// skip wav header place, render data first

 	fseek(f, sizeof (wavHeader_t), SEEK_SET);

+	if (MOD2WAV_FREQ != audio.outputRate)

+		recalcFilterCoeffs(MOD2WAV_FREQ);

+

 	wavRenderingDone = false;

 	uint32_t sampleCounter = 0;

@@ -88,6 +91,9 @@

 		if (samplesInChunk > 0)

 			fwrite(mod2WavBuffer, sizeof (int16_t), samplesInChunk, f);

 	}

+

+	if (MOD2WAV_FREQ != audio.outputRate)

+		recalcFilterCoeffs(audio.outputRate);

 	free(mod2WavBuffer);