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-rw-r--r--Build/source/libs/xpdf/goo/FixedPoint.cc118
1 files changed, 0 insertions, 118 deletions
diff --git a/Build/source/libs/xpdf/goo/FixedPoint.cc b/Build/source/libs/xpdf/goo/FixedPoint.cc
deleted file mode 100644
index 47c2834a34b..00000000000
--- a/Build/source/libs/xpdf/goo/FixedPoint.cc
+++ /dev/null
@@ -1,118 +0,0 @@
-//========================================================================
-//
-// FixedPoint.cc
-//
-// Fixed point type, with C++ operators.
-//
-// Copyright 2004 Glyph & Cog, LLC
-//
-//========================================================================
-
-#include <aconf.h>
-
-#if USE_FIXEDPOINT
-
-#ifdef USE_GCC_PRAGMAS
-#pragma implementation
-#endif
-
-#include "FixedPoint.h"
-
-#define ln2 ((FixedPoint)0.69314718)
-
-FixedPoint FixedPoint::sqrt(FixedPoint x) {
- FixedPoint y0, y1, z;
-
- if (x.val <= 0) {
- y1.val = 0;
- } else {
- y1.val = x.val == 1 ? 2 : x.val >> 1;
- do {
- y0.val = y1.val;
- z = x / y0;
- y1.val = (y0.val + z.val) >> 1;
- } while (::abs(y0.val - y1.val) > 1);
- }
- return y1;
-}
-
-FixedPoint FixedPoint::pow(FixedPoint x, FixedPoint y) {
- FixedPoint t, t2, lnx0, lnx, z0, z;
- int d, n, i;
-
- if (y.val <= 0) {
- z.val = 0;
- } else {
- // y * ln(x)
- t = (x - 1) / (x + 1);
- t2 = t * t;
- d = 1;
- lnx = 0;
- do {
- lnx0 = lnx;
- lnx += t / d;
- t *= t2;
- d += 2;
- } while (::abs(lnx.val - lnx0.val) > 2);
- lnx.val <<= 1;
- t = y * lnx;
- // exp(y * ln(x))
- n = floor(t / ln2);
- t -= ln2 * n;
- t2 = t;
- d = 1;
- i = 1;
- z = 1;
- do {
- z0 = z;
- z += t2 / d;
- t2 *= t;
- ++i;
- d *= i;
- } while (::abs(z.val - z0.val) > 2 && d < (1 << fixptShift));
- if (n >= 0) {
- z.val <<= n;
- } else if (n < 0) {
- z.val >>= -n;
- }
- }
- return z;
-}
-
-int FixedPoint::mul(int x, int y) {
-#if 1 //~tmp
- return ((FixPtInt64)x * y) >> fixptShift;
-#else
- int ah0, ah, bh, al, bl;
- ah0 = x & fixptMaskH;
- ah = x >> fixptShift;
- al = x - ah0;
- bh = y >> fixptShift;
- bl = y - (bh << fixptShift);
- return ah0 * bh + ah * bl + al * bh + ((al * bl) >> fixptShift);
-#endif
-}
-
-int FixedPoint::div(int x, int y) {
-#if 1 //~tmp
- return ((FixPtInt64)x << fixptShift) / y;
-#else
-#endif
-}
-
-GBool FixedPoint::divCheck(FixedPoint x, FixedPoint y, FixedPoint *result) {
-#if 1 //~tmp
- FixPtInt64 z;
-
- z = ((FixPtInt64)x.val << fixptShift) / y.val;
- if ((z == 0 && x != 0) ||
- z >= ((FixPtInt64)1 << 31) || z < -((FixPtInt64)1 << 31)) {
- return gFalse;
- }
- result->val = z;
- return gTrue;
-#else
-#endif
-}
-
-#endif // USE_FIXEDPOINT