shithub: dumb

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Fixed intermittent noise with SSE resonant filters by special casing zero length render calls

--- a/dumb/src/it/itrender.c

+++ b/dumb/src/it/itrender.c

@@ -767,7 +767,7 @@

 		}

 		currsample = _mm_cvtss_si32( temp1 );

-		temp1 = _mm_shuffle_ps( temp1, temp1, _MM_SHUFFLE(0, 0, 0, 2) );

+		temp1 = _mm_shuffle_ps( temp1, data, _MM_SHUFFLE(0, 0, 0, 2) );

 		prevsample = _mm_cvtss_si32( temp1 );

 		if (cr) {

@@ -5427,6 +5427,7 @@

 static void render(DUMB_IT_SIGRENDERER *sigrenderer, float volume, float delta, long pos, long size, sample_t **samples)

 {

+	if (size == 0) return;

 	if (sigrenderer->n_channels == 1 || sigrenderer->n_channels == 2)

 		render_normal(sigrenderer, volume, delta, pos, size, samples);

 	else if (sigrenderer->n_channels == 3)