1 files changed, 0 insertions, 113 deletions
diff --git a/backends/platform/PalmOS/Src/snd_pa1.cpp b/backends/platform/PalmOS/Src/snd_pa1.cpp
deleted file mode 100644
index ddaf6495f6..0000000000
--- a/backends/platform/PalmOS/Src/snd_pa1.cpp
+++ /dev/null
@@ -1,113 +0,0 @@
-#include <stdlib.h>
-
-#include "native.h"
-#include "globals.h"
-
-#ifdef COMPILE_PA1SND
-#	include <endianutils.h>
-#endif
-
-
-static Int32 diffLookup[16] = {
-   1,3,5,7,9,11,13,15,
-   -1,-3,-5,-7,-9,-11,-13,-15,
-};
-
-static Int32 indexScale[16] = {
-   0x0e6, 0x0e6, 0x0e6, 0x0e6, 0x133, 0x199, 0x200, 0x266,
-   0x0e6, 0x0e6, 0x0e6, 0x0e6, 0x133, 0x199, 0x200, 0x266 /* same value for speedup */
-};
-
-static int limit(int val,int min,int max) {
-   if (val<min) return min;
-   else if (val>max) return max;
-   else return val;
-}
-
-void pcm2adpcm(Int16 *src, UInt8 *dst, UInt32 length) {
-#ifndef COMPILE_PA1SND
-/*
-	if (OPTIONS_TST(kOptDeviceARM)) {
-		PnoDescriptor pno;
-		ARMPa1SndType userData = {src, dst, length};
-
-		MemPtr armP =	_PnoInit(ARM_PA1SND, &pno);
-						_PnoCall(&pno, &userData);
-						_PnoFree(&pno, armP);
-
-		return;
-	}
-*/
-	int data,val,diff;
-	int signal,step;
-#else
-	long chan1, chan2;
-	long data,val,diff;
-	long signal,step;
-#endif
-
-	signal = 0;
-	step = 0x7F;
-	length >>= 3;	// 16bit stereo -> 4bit mono
-
-	do {
-
-		// high nibble
-#ifdef COMPILE_PA1SND
-		chan1 = ByteSwap16(*src);
-		src++;
-		chan2 = ByteSwap16(*src);
-		src++;
-
-		diff = ((chan1 + chan2) >> 1) - signal;
-#else
-		diff = ((*src++ + *src++) >> 1) - signal;
-#endif
-		diff <<= 3;
-		diff /= step;
-
-		val = abs(diff) >> 1;
-
-		if (val  > 7)	val = 7;
-		if (diff < 0)	val+= 8;
-
-		signal+= (step * diffLookup[val]) >> 3;
-		signal = limit(signal, -32768, 32767);
-
-		step = (step * indexScale[val]) >> 8;
-		step = limit(step, 0x7F, 0x6000);
-
-		data = val;
-
-		// low nibble
-#ifdef COMPILE_PA1SND
-		chan1 = ByteSwap16(*src);
-		src++;
-		chan2 = ByteSwap16(*src);
-		src++;
-
-		diff = ((chan1 + chan2) >> 1) - signal;
-#else
-		diff = ((*src++ + *src++) >> 1) - signal;
-#endif
-		diff <<= 3;
-		diff /= step;
-
-		val = abs(diff) >> 1;
-
-		if (val  > 7)	val = 7;
-		if (diff < 0)	val+= 8;
-
-		signal+= (step * diffLookup[val]) >> 3;
-		signal = limit(signal, -32768, 32767);
-
-		step = (step * indexScale[val]) >> 8;
-		step = limit(step, 0x7F, 0x6000);
-
-		data |= val << 4;
-
-		*dst++ = (UInt8)data;
-
-	} while (--length);
-
-}