new optimized version

This commit is contained in:
zueuk 2007-10-28 13:26:48 +00:00
parent f2c7a7c1c5
commit e647e5481b

View File

@ -6,6 +6,7 @@ uses
BaseVariation, XFormMan;
const
var_name = 'julian';
var_n_name='julian_power';
var_c_name='julian_dist';
@ -17,8 +18,8 @@ type
N: integer;
c: double;
rN: integer;
cn: double;
absN: integer;
cN, vvar2: double;
procedure CalcPower1;
procedure CalcPowerMinus1;
@ -46,7 +47,7 @@ type
implementation
uses
math;
Math;
// TVariationJulian
@ -59,8 +60,10 @@ end;
procedure TVariationJulian.Prepare;
begin
rN := abs(N);
cn := c / N / 2;
absN := abs(N);
cN := c / N / 2;
vvar2 := vvar * sqrt(2)/2;
end;
///////////////////////////////////////////////////////////////////////////////
@ -83,36 +86,20 @@ var
r: double;
sina, cosa: extended;
begin
sincos((arctan2(FTy^, FTx^) + 2*pi*random(rn)) / N, sina, cosa);
r := vvar * Math.Power(sqr(FTx^) + sqr(FTy^), cn);
sincos((arctan2(FTy^, FTx^) + 2*pi*random(absN)) / N, sina, cosa);
r := vvar * Math.Power(sqr(FTx^) + sqr(FTy^), cN);
FPx^ := FPx^ + r * cosa;
FPy^ := FPy^ + r * sina;
{$else}
asm
mov edx, [eax + FTx]
fld qword ptr [edx + 8]
fld qword ptr [eax + cn]
// mov edx, [eax + FTx]
fld qword ptr [edx]
fld qword ptr [edx] // FTx
fld qword ptr [edx + 8] // FTy
fld qword ptr [eax + cN]
fld st(2)
fld st(1)
fpatan
mov ecx, eax
mov eax, dword ptr [eax + rN]
call System.@RandInt
push eax
fild dword ptr [esp]
add esp, 4
fldpi
fadd st, st
fmulp
faddp
fidiv dword ptr [ecx + N]
fxch st(3)
fmul st, st
fxch st(1)
fld st(2)
fmul st, st
faddp
// --- x^y = 2^(y*log2(x))
@ -127,17 +114,29 @@ asm
fscale
fstp st(1)
// ---
fmul qword ptr [ecx + vvar]
fxch st(1)
fsincos
fmul st, st(2)
fmul qword ptr [eax + vvar]
fxch st(2)
fpatan
mov ecx, eax
mov eax, dword ptr [eax + absN]
call System.@RandInt
push eax
fild dword ptr [esp]
add esp, 4
fldpi
fadd st, st
fmulp
faddp
fidiv dword ptr [ecx + N]
fsincos
fmul st, st(2)
mov edx, [ecx + FPx]
fadd qword ptr [edx]
fadd qword ptr [edx] // FPx
fstp qword ptr [edx]
fmulp
// mov edx, [ecx + FPy]
fadd qword ptr [edx + 8]
fadd qword ptr [edx + 8] // FPy
fstp qword ptr [edx + 8]
fwait
{$endif}
@ -146,53 +145,48 @@ end;
procedure TVariationJulian.CalcPower2;
{$ifndef _ASM_}
var
r: double;
sina, cosa: extended;
d: double;
begin
sincos((arctan2(FTy^, FTx^)/2 + pi*random(2)), sina, cosa);
r := vvar * sqrt(sqrt(sqr(FTx^) + sqr(FTy^)));
d := sqrt( sqrt(sqr(FTx^) + sqr(FTy^)) + FTx^ );
FPx^ := FPx^ + r * cosa;
FPy^ := FPy^ + r * sina;
if random(2) = 0 then begin
FPx^ := FPx^ + vvar2 * d;
FPy^ := FPy^ + vvar2 / d * FTy^;
end
else begin
FPx^ := FPx^ - vvar2 * d;
FPy^ := FPy^ - vvar2 / d * FTy^;
end;
{$else}
asm
mov edx, [eax + FTx]
fld qword ptr [edx + 8]
// mov edx, [eax + FTx]
fld qword ptr [edx]
fld qword ptr [edx + 8] // FTy
fld qword ptr [edx] // FTx
fld st(1)
fmul st,st
fld st(1)
fpatan
fld1
fadd st, st
fdivp st(1), st
mov ecx, eax
mov eax, 2
fmul st,st
faddp
fsqrt
faddp
fsqrt
fld qword ptr [eax + vvar2]
mov ecx,eax
mov eax,2
call System.@RandInt
fldpi
push eax
fimul dword ptr [esp]
add esp, 4
faddp
shr eax,1
jc @skip
fchs
@skip:
fxch st(2)
fmul st, st
fxch st(1)
fmul st, st
faddp
fsqrt
fsqrt
fmul qword ptr [ecx + vvar]
fxch st(1)
fmul st(2),st
fmul st,st(1)
fsincos
fmul st, st(2)
mov edx, [ecx + FPx]
fadd qword ptr [edx]
fstp qword ptr [edx]
fmulp
// mov edx, [ecx + FPy]
fdivp st(1),st
fadd qword ptr [edx + 8]
fstp qword ptr [edx + 8]
fwait
@ -202,54 +196,59 @@ end;
procedure TVariationJulian.CalcPowerMinus2;
{$ifndef _ASM_}
var
r: double;
sina, cosa: extended;
r, xd: double;
begin
sincos((arctan2(FTy^, FTx^)/2 + pi*random(2)), sina, cosa);
r := vvar / sqrt(sqrt(sqr(FTx^) + sqr(FTy^)));
r := sqrt(sqr(FTx^) + sqr(FTy^));
xd := r + FTx^;
FPx^ := FPx^ + r * cosa;
FPy^ := FPy^ - r * sina;
r := vvar / sqrt(r * (sqr(Fty^) + sqr(xd)) );
if random(2) = 0 then begin
FPx^ := FPx^ + r * xd;
FPy^ := FPy^ - r * FTy^;
end
else begin
FPx^ := FPx^ - r * xd;
FPy^ := FPy^ + r * FTy^;
end;
{$else}
asm
mov edx, [eax + FTx]
fld qword ptr [edx + 8]
// mov edx, [eax + FTx]
fld qword ptr [edx]
fld st(1)
fmul st,st
fld st(1)
fpatan
fld1
fadd st, st
fdivp st(1), st
mov ecx, eax
mov eax, 2
call System.@RandInt
fldpi
push eax
fimul dword ptr [esp]
add esp, 4
faddp
fxch st(2)
fmul st, st
fxch st(1)
fmul st, st
fmul st,st
faddp
fsqrt
fsqrt
fdivr qword ptr [ecx + vvar]
fxch st(1)
fsincos
fmul st, st(2)
mov edx, [ecx + FPx]
fadd qword ptr [edx]
fstp qword ptr [edx]
fadd st(1),st
fld st(1)
fmul st,st
fld st(3)
fmul st,st
faddp
fmulp
// mov edx, [ecx + FPy]
fsubr qword ptr [edx + 8]
fsqrt
fdivr qword ptr [eax + vvar]
mov ecx,eax
mov eax,2
call System.@RandInt
shr eax,1
jc @skip
fchs
@skip:
fmul st(1),st
fmulp st(2),st
mov edx, [ecx + FPx]
fsubr qword ptr [edx]
fstp qword ptr [edx]
fadd qword ptr [edx + 8]
fstp qword ptr [edx + 8]
fwait
{$endif}
@ -263,9 +262,9 @@ begin
{$else}
asm
mov edx, [eax + FTx] //[eax + FTy]
fld qword ptr [edx + 8]
// mov edx, [eax + FTx]
fld qword ptr [edx]
// mov edx, [eax + FTx]
fld qword ptr [edx + 8]
fld qword ptr [eax + vvar]
fmul st(2), st
fmulp
@ -321,7 +320,7 @@ end;
///////////////////////////////////////////////////////////////////////////////
class function TVariationJulian.GetName: string;
begin
Result := 'julian';
Result := var_name;
end;
///////////////////////////////////////////////////////////////////////////////