diff options
| -rw-r--r-- | libavfilter/vsrc_mandelbrot.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/libavfilter/vsrc_mandelbrot.c b/libavfilter/vsrc_mandelbrot.c index 5701094cbd..9aea384b55 100644 --- a/libavfilter/vsrc_mandelbrot.c +++ b/libavfilter/vsrc_mandelbrot.c @@ -247,7 +247,30 @@ static void draw_mandelbrot(AVFilterContext *ctx, uint32_t *color, int linesize, } - for(i=0; i<mb->maxiter; i++){ + for(i=0; i<mb->maxiter-8; i++){ + double t; + Z_Z2_C_ZYKLUS(t, zi, zr, zi, 0) + i++; + Z_Z2_C_ZYKLUS(zr, zi, t, zi, 1) + i++; + Z_Z2_C_ZYKLUS(t, zi, zr, zi, 0) + i++; + Z_Z2_C_ZYKLUS(zr, zi, t, zi, 1) + i++; + Z_Z2_C_ZYKLUS(t, zi, zr, zi, 0) + i++; + Z_Z2_C_ZYKLUS(zr, zi, t, zi, 1) + i++; + Z_Z2_C_ZYKLUS(t, zi, zr, zi, 0) + i++; + Z_Z2_C_ZYKLUS(zr, zi, t, zi, 1) + if(zr*zr + zi*zi > mb->bailout) + break; + } + i-= FFMIN(7, i); + zr= mb->zyklus[i][0]; + zi= mb->zyklus[i][1]; + for(; i<mb->maxiter; i++){ double t; if(zr*zr + zi*zi > mb->bailout){ switch(mb->outer){ |