From 79938a4e9748174146a7b2ecddbb23208c776e77 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 27 Mar 2013 16:19:50 +0100 Subject: mandelbrot: add outer coloring method showing bailouted z Signed-off-by: Michael Niedermayer --- libavfilter/vsrc_mandelbrot.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'libavfilter') diff --git a/libavfilter/vsrc_mandelbrot.c b/libavfilter/vsrc_mandelbrot.c index b9487dd2d1..c323d103a8 100644 --- a/libavfilter/vsrc_mandelbrot.c +++ b/libavfilter/vsrc_mandelbrot.c @@ -42,6 +42,7 @@ enum Outer{ ITERATION_COUNT, NORMALIZED_ITERATION_COUNT, WHITE, + OUTZ, }; enum Inner{ @@ -98,6 +99,7 @@ static const AVOption mandelbrot_options[] = { {"iteration_count", "set iteration count mode", 0, AV_OPT_TYPE_CONST, {.i64=ITERATION_COUNT}, INT_MIN, INT_MAX, FLAGS, "outer" }, {"normalized_iteration_count", "set normalized iteration count mode", 0, AV_OPT_TYPE_CONST, {.i64=NORMALIZED_ITERATION_COUNT}, INT_MIN, INT_MAX, FLAGS, "outer" }, {"white", "set white mode", 0, AV_OPT_TYPE_CONST, {.i64=WHITE}, INT_MIN, INT_MAX, FLAGS, "outer" }, + {"outz", "set outz mode", 0, AV_OPT_TYPE_CONST, {.i64=OUTZ}, INT_MIN, INT_MAX, FLAGS, "outer" }, {"inner", "set inner coloring mode", OFFSET(inner), AV_OPT_TYPE_INT, {.i64=MINCOL}, 0, INT_MAX, FLAGS, "inner" }, {"black", "set black mode", 0, AV_OPT_TYPE_CONST, {.i64=BLACK}, INT_MIN, INT_MAX, FLAGS, "inner"}, @@ -330,6 +332,11 @@ static void draw_mandelbrot(AVFilterContext *ctx, uint32_t *color, int linesize, break; case WHITE: c = 0xFFFFFF; + break; + case OUTZ: + zr /= mb->bailout; + zi /= mb->bailout; + c = (((int)(zr*128+128))&0xFF)*256 + (((int)(zi*128+128))&0xFF); } break; } -- cgit v1.2.3