Note about the managment of VIA & cuts: Components using a layer which
is a ViaLayer, that is one containing more than one BasicLayer,
multiple tiles are created in QueryTiles::goCallback().
Components that have a single BasicLayer of "cut" material will
also have their multiples tiles created in QueryTiles::goCallback().
Rectilinear components will have their multiples tiles created
in Tile::create(). Tile::create() return not all the tiles but the
one used as root (for the union find).
* New: In SweepLine::_buildCutConnexMap(), when using a "cut" layer
in a standalone way, and not as part of a ViaLayer, we do not
automatically know to which layer above & below they are connected.
We build a table for each cut layer, based on the ViaLayer,
to know all tops & belows layers they connect (this is cumulative,
in the case of "cut" towards the substrate).
Then in Tile::create(), we not only create the tile for the "cut"
but also in thoses connected layers (and link them in the union
find).
* New: In Tile::create(), when we encounter a Rectilinear, break it
into rectangles and make as many tiles. All tiles linked to the
same root in the union find.
* Bug: In Hurricane::Rectilinear, ambiguous specification of the set
of points defining the shape. I did suppose that the start and and
point where not the same the last edge being between them.
But if FlexLib, it uses the GDSII inspired convention where the
first and last point must be the same, to indicate a closed contour.
This difference was not causing any difference with the drawing,
but it was a problem for getAsRectangle(). This was creating a
"false" extra vertical edge leading to a bigger rectangle.
And this, in turn, was making "false" intersections in the
tiling/sweepline of the extractor.
Add a more thorough checking of the points vector.
* New: Rectilinear::asRectangles(), decompose the Rectilinear into a
set of non-overlapping rectangles sliced vertically.
This not a mathematical minimum set. But should be speedier.
Done using a sweepline processing the vertical edges.
Specially suited for use in the extractor which basically
manage only rectangles.
Simple algorithm described in pp. 9-11 of Extractor notebook.
Tests done with unitests/python/test_rectilinear.py, the
Rectilinear here should cover all the sweepline cases.
* New: In hurricane/configuration, the Python/C template wrapper has
now all the needed features to mass-migrate Hurricane and the
ToolEngines.
The new Hurricane module is named Hurricane3 so it does not
collides with the old one which is still used. Will do the
same for all ToolEngines Python wrappers until migration is
complete.
* New: In unittests/python/, create very basic unit tests for the
Configuration & Hurricane new template wrapper.
Note: It is almost impossible to use valgrind on them because
it doesn't recognize correctly Python allocation mechanism.
To make it work, both valgrind & Python needs to be
recompiled with special options...
* Change: In CRL/helpers, cumulus/plugins, oroshi & karakaze,
Move towards more Python PEP8 compliance:
* All indentations sets to 4 spaces (in progress).
* In plugins, remove messages about software collections
and RHEL (too many case could wrongly lead to that).
Instead systematically uses "helpers.io.catch()".
* Put in lowercases all modules names. Note that C++ exported
modules *keep* their Capitalized names (to preserve the
identity with the C++ namespace).
* When making import, use full path.
* Rename the run function from "ScriptMain()" to "scriptMain()".
* Cleanup: In CRL/etc, remove obsoleted configuration files,
the one ending in ".conf". Keep those who have not been ported
to the new style yet.
* New: In Hurricane/src/configuration, first trial at replacing the
C preprocessor macros by C++ templates. Applied first to configuration
from VLSISAPD.
This is unfinished business, just a limited demonstrator for now.
It is installed as a separate Python library "Cfg2" which do not
interact with the rest of Coriiolis.
The end goal is to fully remove boost and merge VLSISAPD useful
components directly inside Hurricane.
Jean-Paul Chaput
Gabriel Gouvine