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Improved seeding of color rng in show command

This commit is contained in:
Clifford Wolf 2014-07-18 16:44:45 +02:00
parent a341931972
commit 44f13aff92
1 changed files with 3 additions and 1 deletions
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4
passes/cmds/show.cc
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@ -54,7 +54,7 @@ struct ShowWorker
const std::vector<std::pair<std::string, RTLIL::Selection>> &color_selections;
const std::vector<std::pair<std::string, RTLIL::Selection>> &label_selections;
uint32_t xorshift32(uint32_t x) {
static uint32_t xorshift32(uint32_t x) {
x ^= x << 13;
x ^= x >> 17;
x ^= x << 5;
@ -655,6 +655,8 @@ struct ShowPass : public Pass {
}
if (arg == "-colors" && argidx+1 < args.size()) {
colorSeed = atoi(args[++argidx].c_str());
for (int i = 0; i < 100; i++)
colorSeed = ShowWorker::xorshift32(colorSeed);
continue;
}
if (arg == "-format" && argidx+1 < args.size()) {