Build the modplug plugin against the modplug library and remove our copy

Always build the modplug plugin against the system modplug library
and remove our own copy. Using the system version has advantages
if security issues or other critical bugs are found in libmodplug
and our own copy wasn't really maintained anyway.

Also our copy only contained some patches to use GLib types and functions.
Fixes bug #568837.

1 files changed, 0 insertions, 105 deletions

diff --git a/gst/modplug/libmodplug/snd_flt.cpp b/gst/modplug/libmodplug/snd_flt.cpp
deleted file mode 100644
index 00506d4a..00000000
--- a/gst/modplug/libmodplug/snd_flt.cpp
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * This source code is public domain.
- *
- * Authors: Olivier Lapicque <olivierl@jps.net>
-*/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "stdafx.h"
-#include "sndfile.h"
-
-// AWE32: cutoff = reg[0-255] * 31.25 + 100 -> [100Hz-8060Hz]
-// EMU10K1 docs: cutoff = reg[0-127]*62+100
-#define FILTER_PRECISION	8192
-
-#ifndef NO_FILTER
-
-#ifdef MSC_VER
-#define _ASM_MATH
-#endif
-
-#ifdef _ASM_MATH
-
-// pow(a,b) returns a^^b -> 2^^(b.log2(a))
-static float pow(float a, float b)
-{
-	long tmpint;
-	float result;
-	_asm {
-	fld b				// Load b
-	fld a				// Load a
-	fyl2x				// ST(0) = b.log2(a)
-	fist tmpint			// Store integer exponent
-	fisub tmpint		// ST(0) = -1 <= (b*log2(a)) <= 1
-	f2xm1				// ST(0) = 2^(x)-1
-	fild tmpint			// load integer exponent
-	fld1				// Load 1
-	fscale				// ST(0) = 2^ST(1)
-	fstp ST(1)			// Remove the integer from the stack
-	fmul ST(1), ST(0)	// multiply with fractional part
-	faddp ST(1), ST(0)	// add integer_part
-	fstp result			// Store the result
-	}
-	return result;
-}
-
-
-#else
-
-#include <math.h>
-
-#endif // _ASM_MATH
-
-
-DWORD CSoundFile::CutOffToFrequency(UINT nCutOff, int flt_modifier) const
-//-----------------------------------------------------------------------
-{
-	float Fc;
-
-	if (m_dwSongFlags & SONG_EXFILTERRANGE)
-		Fc = 110.0f * pow(2.0f, 0.25f + ((float)(nCutOff*(flt_modifier+256)))/(21.0f*512.0f));
-	else
-		Fc = 110.0f * pow(2.0f, 0.25f + ((float)(nCutOff*(flt_modifier+256)))/(24.0f*512.0f));
-	LONG freq = (LONG)Fc;
-	if (freq < 120) return 120;
-	if (freq > 10000) return 10000;
-	if (freq*2 > (LONG)gdwMixingFreq) freq = gdwMixingFreq>>1;
-	return (DWORD)freq;
-}
-
-
-// Simple 2-poles resonant filter
-void CSoundFile::SetupChannelFilter(MODCHANNEL *pChn, BOOL bReset, int flt_modifier) const
-//----------------------------------------------------------------------------------------
-{
-	float fc = (float)CutOffToFrequency(pChn->nCutOff, flt_modifier);
-	float fs = (float)gdwMixingFreq;
-	float fg, fb0, fb1;
-
-	fc *= (float)(2.0*3.14159265358/fs);
-	float dmpfac = pow(10.0f, -((24.0f / 128.0f)*(float)pChn->nResonance) / 20.0f);
-	float d = (1.0f-2.0f*dmpfac)* fc;
-	if (d>2.0) d = 2.0;
-	d = (2.0f*dmpfac - d)/fc;
-	float e = pow(1.0f/fc, 2);
-
-	fg=1/(1+d+e);
-	fb0=(d+e+e)/(1+d+e);
-	fb1=-e/(1+d+e);
-
-	pChn->nFilter_A0 = (int)(fg * FILTER_PRECISION);
-	pChn->nFilter_B0 = (int)(fb0 * FILTER_PRECISION);
-	pChn->nFilter_B1 = (int)(fb1 * FILTER_PRECISION);
-
-	if (bReset)
-	{
-		pChn->nFilter_Y1 = pChn->nFilter_Y2 = 0;
-		pChn->nFilter_Y3 = pChn->nFilter_Y4 = 0;
-	}
-	pChn->dwFlags |= CHN_FILTER;
-}
-
-#endif // NO_FILTER