diff options
Diffstat (limited to 'graphics/inkscape/files/patch-src_trace_potrace_inkscape-potrace.cpp')
| -rw-r--r-- | graphics/inkscape/files/patch-src_trace_potrace_inkscape-potrace.cpp | 124 |
1 files changed, 0 insertions, 124 deletions
diff --git a/graphics/inkscape/files/patch-src_trace_potrace_inkscape-potrace.cpp b/graphics/inkscape/files/patch-src_trace_potrace_inkscape-potrace.cpp deleted file mode 100644 index 832ff9757..000000000 --- a/graphics/inkscape/files/patch-src_trace_potrace_inkscape-potrace.cpp +++ /dev/null @@ -1,124 +0,0 @@ ---- src/trace/potrace/inkscape-potrace.cpp.orig Sat Jun 24 22:46:26 2006 -+++ src/trace/potrace/inkscape-potrace.cpp Sun Jun 25 01:29:20 2006 -@@ -54,6 +54,121 @@ static void potraceStatusCallback(double - // (Inkscape::Trace::Potrace::PotraceTracingEngine *)userData; - } - -+#ifndef log2 -+static const double -+ln2 = 0.6931471805599452862268, -+two54 = 1.80143985094819840000e+16, /* 43500000 00000000 */ -+Lg1 = 6.666666666666735130e-01, /* 3FE55555 55555593 */ -+Lg2 = 3.999999999940941908e-01, /* 3FD99999 9997FA04 */ -+Lg3 = 2.857142874366239149e-01, /* 3FD24924 94229359 */ -+Lg4 = 2.222219843214978396e-01, /* 3FCC71C5 1D8E78AF */ -+Lg5 = 1.818357216161805012e-01, /* 3FC74664 96CB03DE */ -+Lg6 = 1.531383769920937332e-01, /* 3FC39A09 D078C69F */ -+Lg7 = 1.479819860511658591e-01; /* 3FC2F112 DF3E5244 */ -+ -+static const double zero = 0.0; -+ -+#if BYTE_ORDER == BIG_ENDIAN -+ -+typedef union -+{ -+ double value; -+ struct -+ { -+ u_int32_t msw; -+ u_int32_t lsw; -+ } parts; -+} ieee_double_shape_type; -+ -+#endif -+ -+#if BYTE_ORDER == LITTLE_ENDIAN -+ -+typedef union -+{ -+ double value; -+ struct -+ { -+ u_int32_t lsw; -+ u_int32_t msw; -+ } parts; -+} ieee_double_shape_type; -+ -+#endif -+ -+#define EXTRACT_WORDS(ix0,ix1,d) \ -+ do { \ -+ ieee_double_shape_type ew_u; \ -+ ew_u.value = (d); \ -+ (ix0) = ew_u.parts.msw; \ -+ (ix1) = ew_u.parts.lsw; \ -+ } while (0) -+ -+#define GET_HIGH_WORD(i,d) \ -+ do { \ -+ ieee_double_shape_type gh_u; \ -+ gh_u.value = (d); \ -+ (i) = gh_u.parts.msw; \ -+ } while (0) -+ -+#define SET_HIGH_WORD(d,v) \ -+ do { \ -+ ieee_double_shape_type sh_u; \ -+ sh_u.value = (d); \ -+ sh_u.parts.msw = (v); \ -+ (d) = sh_u.value; \ -+ } while (0) -+ -+static double -+_log2(double x) -+{ -+ double hfsq,f,s,z,R,w,t1,t2,dk; -+ int32_t k,hx,i,j; -+ u_int32_t lx; -+ -+ EXTRACT_WORDS(hx,lx,x); -+ -+ k=0; -+ if (hx < 0x00100000) { /* x < 2**-1022 */ -+ if (((hx&0x7fffffff)|lx)==0) -+ return -two54/zero; /* log(+-0)=-inf */ -+ if (hx<0) return (x-x)/zero; /* log(-#) = NaN */ -+ k -= 54; x *= two54; /* subnormal number, scale up x */ -+ GET_HIGH_WORD(hx,x); -+ } -+ if (hx >= 0x7ff00000) return x+x; -+ k += (hx>>20)-1023; -+ hx &= 0x000fffff; -+ i = (hx+0x95f64)&0x100000; -+ SET_HIGH_WORD(x,hx|(i^0x3ff00000)); /* normalize x or x/2 */ -+ k += (i>>20); -+ f = x-1.0; -+ dk = (double)k; -+ if((0x000fffff&(2+hx))<3) { /* |f| < 2**-20 */ -+ if (f==zero) -+ return (dk); -+ R = f*f*(0.5-0.33333333333333333*f); -+ return (dk-(R-f)/ln2); -+ } -+ s = f/(2.0+f); -+ z = s*s; -+ i = hx-0x6147a; -+ w = z*z; -+ j = 0x6b851-hx; -+ t1= w*(Lg2+w*(Lg4+w*Lg6)); -+ t2= z*(Lg1+w*(Lg3+w*(Lg5+w*Lg7))); -+ i |= j; -+ R = t2+t1; -+ if(i>0) { -+ hfsq=0.5*f*f; -+ return (dk-(hfsq-s*(hfsq+R)-f)/ln2); -+ } else -+ return (dk-((s*(f-R))-f)/ln2); -+} -+ -+#define log2(x) _log2(x) -+#endif -+ - - - |