windows: use the proper preprocessor definitions for detecting Windows

See merge request !12

Make default ICET_MAX_IMAGE_SPLIT higher

See merge request !11

Move the default ICET_MAX_IMAGE_SPLIT from 512 to a much higher 500000.
The initial value was based on some timings on Intrepid (a BlueGene).
However, I have not seem the same benefit on other architectures, so in
the spirit of do no harm I'm raising this back up. Perhaps with some
more data I will move it back down again.

Update required version of CMake

See merge request !10

Remove some old cruft that is fairly obsolete.

Add ICET_IMAGE_COLOR_RGB_FLOAT color format

See merge request !9

Also removed whitespace at the end of generated manpages.

Adds a color format that stores 3 channel RGB colors as floats. This is
really only good for z-buffer compositing.

Update finding glfw

See merge request !8

For the latest version of the glfw library, you need to find a packaged
named glfw3 (not GLFW).

Fix warnings on MSVC

See merge request !5

The GNU compiler is being strict about POSIX compliance. Explicitly
port those things outside of POSIX (like snprintf).

Most of the warnings are about using "unsafe" functions. In addition to
replacing string functions like strcpy with counting strncpy versions,
which makes sense, older MSVC versions for some reason don't support
POSIX versions of these functions. Instead, they have their weird
offshoots, which is a pain.

Fix issues with unused variables

See merge request !7

Update the diagnostics macros

See merge request !6

The new version now uses variadic template macros to allow you to do
printf-style messages. This is how I wanted it to begin with, but as I
recall variadic templates were not supported on all compilers at the
time I started IceT. At this point, I think they are supported on pretty
much any compiler in the last 10 years.

You have to set up a target property to say the "runtime" should go in
the build directory, which is annoying.

Fix dashboard warning when glut is not found.



See merge request !4

Fix compilation errors

Compilation error on Visual Studio 10 Win 64.
Fix undefined symbol: TEST_NOT_PASSED

See merge request !3

Compilation error on Visual Studio 10 Win 64.
Fix undefined symbol: TEST_NOT_PASSED

Add off-screen rendering through EGL



See merge request !2

Update README

Moving README to README.md and updating formatting.

See merge request !1

When you render a dense image, the load balancing should be pretty
even. At any rate, it probably won't help to shift around pixels when
there are the same amount of pixels everywhere, so ultimately this
is a waste of time.

IceT insists on using sparse images most of the time because they are
almost always better (at least at the beginning part of the
compositing). Add an option to SimpleTiming to draw images that have no
background pixels so that the "sparse" images are equivalent to dense
images. This is done by making the depth of background pixels slightly
above and the opacity never 0.

The camera angles in SimpleTiming are more-or-less perfect for IceT's
image compositing. It is a fairly common case to want to zoom into the
data, especially if there is some intersting detail. This could add
extra work and load imbalance and could make the tests more interesting.

Hopefully this can be used to test odd process group sizes. Randomly
picked group sizes should commonly have large factors.

This is added for comparison purposes only. The telescoping binary swap
(just named binary swap) is generally faster (but maybe not always).

There is now a radix-kr algorithm that should handle odd factors better
than telescoping (plus supports non-power-of-2 factors).

There was an issue with how radix-kr was iterating over images to send
where it was trying to send images that did not exist.

When dealing with a factor that does not divide evenly, there was an
error that made the process in the remainder think it still had an
image.