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Merge pull request #13 from efabless/move_rectify
Move Rectify To Caravel
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,148 @@ | ||
| #!/usr/bin/env python3 | ||
| # Copyright 2020 Efabless Corporation | ||
| # | ||
| # Licensed under the Apache License, Version 2.0 (the "License"); | ||
| # you may not use this file except in compliance with the License. | ||
| # You may obtain a copy of the License at | ||
| # | ||
| # http://www.apache.org/licenses/LICENSE-2.0 | ||
| # | ||
| # Unless required by applicable law or agreed to in writing, software | ||
| # distributed under the License is distributed on an "AS IS" BASIS, | ||
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| # See the License for the specific language governing permissions and | ||
| # limitations under the License. | ||
|
|
||
| """ | ||
| takes a lef file and a rectangle => trims all RECT statements within the area | ||
| """ | ||
| import re | ||
| import sys | ||
|
|
||
| ARGV = sys.argv | ||
| if len(ARGV) < 5: | ||
| print("Usage " + ARGV[0] + " llx lly urx ury") | ||
| sys.exit(-1) | ||
| LLX = float(ARGV[1]) | ||
| LLY = float(ARGV[2]) | ||
| URX = float(ARGV[3]) | ||
| URY = float(ARGV[4]) | ||
| LAYERS = ["li1", "met1", "met2", "met3", "met4", "met5"] | ||
| RECT_REGEX = ( | ||
| r"^\s*RECT\s+(-?\d+\.?\d*)\s+(-?\d+\.?\d*)\s+(-?\d+\.?\d*)\s+(-?\d+\.?\d*)\s+;$" | ||
| ) | ||
| # SIZE_REGEX = r"^\s*SIZE\s+(-?\d+\.?\d*)\s+BY\s+\s+(-?\d+\.?\d*);$" | ||
|
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| def get_cut_rect_x(rect, axis): | ||
| """ | ||
| cuts one rect about an x axis | ||
| """ | ||
| rects = [rect] | ||
| llx, lly, urx, ury = rect | ||
| if llx < axis and urx > axis: | ||
| rects = [(llx, lly, axis, ury), (axis, lly, urx, ury)] | ||
| return rects | ||
|
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| def get_cut_rect_y(rect, axis): | ||
| """ | ||
| cuts one rect about an y axis | ||
| """ | ||
| rects = [rect] | ||
| llx, lly, urx, ury = rect | ||
| if lly < axis and ury > axis: | ||
| rects = [(llx, lly, urx, axis), (llx, axis, urx, ury)] | ||
| return rects | ||
|
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| def rects2cutrects(rects, axis, direction): | ||
| """ | ||
| cut a list of rects (4-tuple) and returns another list of of rects (4-tuple) | ||
| cut by an x or y axis | ||
| axix is a position | ||
| direction is either 'x' or 'y' | ||
| """ | ||
| rects_cut = [] | ||
| if direction == "x": | ||
| for rect in rects: | ||
| rects_cut += get_cut_rect_x(rect, axis) | ||
| else: | ||
| for rect in rects: | ||
| rects_cut += get_cut_rect_y(rect, axis) | ||
| return rects_cut | ||
|
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| def get_all_cut_rects(rect): | ||
| """ | ||
| cut a rect about the 4 axis LLX, LLY, URX, URY | ||
| """ | ||
| rects = [rect] | ||
| rects = rects2cutrects(rects, LLX, "x") | ||
| rects = rects2cutrects(rects, URX, "x") | ||
| rects = rects2cutrects(rects, LLY, "y") | ||
| rects = rects2cutrects(rects, URY, "y") | ||
| return rects | ||
|
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| def rectify(rects): | ||
| """ | ||
| gets a list of already cut rects (4-tuple) and returns another list of of | ||
| rects (4-tuple) that are not within LLX, LLY, URX, URY | ||
| """ | ||
| rect_outside = [] | ||
| for rect in rects: | ||
| llx, lly, urx, ury = rect | ||
| if ( | ||
| llx < LLX | ||
| or llx > URX | ||
| or urx > URX | ||
| or urx < LLX | ||
| or lly < LLY | ||
| or lly > URY | ||
| or ury > URY | ||
| or ury < LLY | ||
| ): | ||
| rect_outside += [rect] | ||
| return rect_outside | ||
|
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| def print_rects(prefix, rects): | ||
| for rect in rects: | ||
| llx, lly, urx, ury = rect | ||
| print(prefix + "RECT %f %f %f %f ;" % (llx, lly, urx, ury)) | ||
|
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| layer = "" | ||
| for line in sys.stdin: | ||
| if line.isspace(): | ||
| continue | ||
| rect_match = re.search(RECT_REGEX, line) | ||
| if rect_match: | ||
| llx, lly, urx, ury = ( | ||
| float(rect_match.group(1)), | ||
| float(rect_match.group(2)), | ||
| float(rect_match.group(3)), | ||
| float(rect_match.group(4)), | ||
| ) | ||
| if ( | ||
| (lly < LLY and ury < LLY) | ||
| or (lly > URY and ury > URY) | ||
| or (llx < LLX and urx < LLX) | ||
| or (llx > URX and urx > URX) | ||
| ): # outside the whole thing | ||
| rects = [(llx, lly, urx, ury)] | ||
| else: | ||
| rects = rectify(get_all_cut_rects((llx, lly, urx, ury))) | ||
| if len(rects) > 0: | ||
| print(layer) | ||
| if layer != "": # LAYER printed, clear it | ||
| layer = "" | ||
| print_rects(line[: line.find("R")], rects) | ||
| else: | ||
| if line.find("LAYER") != -1: # print it only if there're RECTs | ||
| layer = line | ||
| else: | ||
| print(line, end="") |