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vsrc_mandelbrot: factorize periodicity checking too. 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-11-19 13:55:51 +01:00
parent cf670fbc96
commit fe2efc5264
1 changed files with 12 additions and 12 deletions
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24
libavfilter/vsrc_mandelbrot.c
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@ -237,6 +237,16 @@ static void draw_mandelbrot(AVFilterContext *ctx, uint32_t *color, int linesize,
outr= inr*inr - ini*ini + cr;\
outi= 2*inr*ini + ci;
#define Z_Z2_C_ZYKLUS(outr,outi,inr,ini, Z)\
Z_Z2_C(outr,outi,inr,ini)\
if(use_zyklus){\
if(Z && mb->zyklus[i>>1][0]==outr && mb->zyklus[i>>1][1]==outi)\
break;\
mb->zyklus[i][0]= outr;\
mb->zyklus[i][1]= outi;\
}
for(i=0; i<mb->maxiter; i++){
double t;
if(zr*zr + zi*zi > mb->bailout){
@ -247,19 +257,9 @@ static void draw_mandelbrot(AVFilterContext *ctx, uint32_t *color, int linesize,
c= lrintf((sin(zr)+1)*127) + lrintf((sin(zr/1.234)+1)*127)*256*256 + lrintf((sin(zr/100)+1)*127)*256;
break;
}
Z_Z2_C(t, zi, zr, zi)
if(use_zyklus){
mb->zyklus[i][0]= t;
mb->zyklus[i][1]= zi;
}
Z_Z2_C_ZYKLUS(t, zi, zr, zi, 0)
i++;
Z_Z2_C(zr, zi, t, zi)
if(use_zyklus){
if(mb->zyklus[i>>1][0]==zr && mb->zyklus[i>>1][1]==zi)
break;
mb->zyklus[i][0]= zr;
mb->zyklus[i][1]= zi;
}
Z_Z2_C_ZYKLUS(zr, zi, t, zi, 1)
}
if(!c){
if(mb->inner==PERIOD){