Commit by bjacob :: r1104095 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/ (mix.cpp render_impl.cpp):

• use qrand(), it's thread safe, thanks to Mek
• shift the gradient curve a bit (better colors)

Commit by bjacob :: r1103437 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/render_impl.cpp:

fix coloring glitches caused by NaN values

Commit by bjacob :: r1103427 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/render_impl.cpp:

remove a 'tweak' that didn't improve things all

Commit by bjacob :: r1103426 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/CMakeLists.txt:

didn't want to commit that

Commit by bjacob :: r1103425 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/ (9 files):

• add dithering for perfect gradients (8 bits per channel is less than the human eye can distinguish)
• rewrite the supersampling, don't create a new QImage for each supersampled tile. Less memory usage and less malloc() traffic.
• remove gamma correction (looks better without)
• small tweaks to the gradients scale

Commit by bjacob :: r1103296 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/render_impl.cpp:

be more careful in the interiorness test: we could have been missing the bottom-right corner of a tile

Commit by bjacob :: r1103290 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/mandelbrot.cpp:

handle properly the case when the user cancels importing a file

Commit by bjacob :: r1103281 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/ (config.ui mandelbrot.cpp):

• save config on exit (fix bug when Mandelbrot didn't remember your viewpoint correctly)
• better explanation label in the UI

Commit by bjacob :: r1103268 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/render_impl.cpp:

be more aggressive declaring that tiles are fully interior
(4x speed boost in very interior situations)

Commit by bjacob :: r1103260 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/ (4 files):

Implement import/export of configuration to user's files.
Thanks a lot to ossi on IRC.

Commit by bjacob :: r1102903 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/config.ui:

add label to explain how to use the mouse, in the same style as the Globe wallpaper does.

Commit by bjacob :: r1102893 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/mandelbrot.cpp:

need to delete the file before overwriting it
(and it's not worth worrying about copying to another file and renaming)

Commit by bjacob :: r1102879 wallpapers/trunk/KDE/kdeplasma-addons/ (CMakeLists.txt wallpapers/CMakeLists.txt):

oops! had unintentionally commited my local cmakelists tweaks

Commit by bjacob :: r1102878 wallpapers/trunk/KDE/kdeplasma-addons/ (5 files in 3 dirs):

• fix the continuous coloring, now it looks gorgeous!
• export to image
• placeholders for export/import config (not yet working)

Commit by bjacob :: r1102710 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/mandelbrot.cpp:

new cooler default config (still very reasonable)

Commit by bjacob :: r1102687 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/mandelbrot.cpp:

initially fill the image in black (avoid artifacts at startup)

Commit by bjacob :: r1102682 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/ (5 files):

• big optimization: detect when a tile is entirely in the interior
• adjust float->double transition point
• adjust tile size

Commit by bjacob :: r1102665 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/ (global.h mandelbrot.cpp tile.cpp tile.h):

let the tiling size be configurable, set to 10x10

Commit by bjacob :: r1102663 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/ (8 files):

big change/simplification/optimization:let each thread work on his own tile. makes much more sense.

Commit by bjacob :: r1102647 wallpapers/trunk/KDE/kdeplasma-addons/wallpapers/mandelbrot/mandelbrot.cpp:

remove noise in re-rendering center position. didn't give good results.