diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2013-03-27 16:00:18 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2013-03-27 16:00:18 +0100 |
| commit | a2b58256490d18828f6d5a014ba585fbee3eab61 (patch) | |
| tree | 53a79c177d238743715e67be93a0d5f7b01282ac /libavfilter/vsrc_mandelbrot.c | |
| parent | ace0cfea60a32c2d2c89ce31fed8466625b09ac6 (diff) | |
vsrc_mandelbrot: support coloring the outside white
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavfilter/vsrc_mandelbrot.c')
| -rw-r--r-- | libavfilter/vsrc_mandelbrot.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/libavfilter/vsrc_mandelbrot.c b/libavfilter/vsrc_mandelbrot.c index d754f22b5e..b9487dd2d1 100644 --- a/libavfilter/vsrc_mandelbrot.c +++ b/libavfilter/vsrc_mandelbrot.c @@ -41,6 +41,7 @@ enum Outer{ ITERATION_COUNT, NORMALIZED_ITERATION_COUNT, + WHITE, }; enum Inner{ @@ -96,6 +97,7 @@ static const AVOption mandelbrot_options[] = { {"outer", "set outer coloring mode", OFFSET(outer), AV_OPT_TYPE_INT, {.i64=NORMALIZED_ITERATION_COUNT}, 0, INT_MAX, FLAGS, "outer" }, {"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" }, {"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"}, @@ -318,10 +320,17 @@ static void draw_mandelbrot(AVFilterContext *ctx, uint32_t *color, int linesize, zi= mb->zyklus[i][1]; if(zr*zr + zi*zi > mb->bailout){ switch(mb->outer){ - case ITERATION_COUNT: zr = i; break; - case NORMALIZED_ITERATION_COUNT: zr= i + log2(log(mb->bailout) / log(zr*zr + zi*zi)); break; + case ITERATION_COUNT: + zr = i; + c = lrintf((sin(zr)+1)*127) + lrintf((sin(zr/1.234)+1)*127)*256*256 + lrintf((sin(zr/100)+1)*127)*256; + break; + case NORMALIZED_ITERATION_COUNT: + zr = i + log2(log(mb->bailout) / log(zr*zr + zi*zi)); + c = lrintf((sin(zr)+1)*127) + lrintf((sin(zr/1.234)+1)*127)*256*256 + lrintf((sin(zr/100)+1)*127)*256; + break; + case WHITE: + c = 0xFFFFFF; } - c= lrintf((sin(zr)+1)*127) + lrintf((sin(zr/1.234)+1)*127)*256*256 + lrintf((sin(zr/100)+1)*127)*256; break; } } |