pyrex/dartterm
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Save work for now

Browse Source
This commit is contained in:
Pyrex
2023-09-19 19:41:42 -07:00
parent bc6a7cd5a7
commit ed57ba18ed
4 changed files with 3 additions and 34 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
lib/wfc/template.dart
View File

@ -24,14 +24,7 @@ class Wfc<T> {
List<int?> _observed = [];
// computationally expensive stuff that we keep in an incremental way
List<double> _weightLogWeights = [];
double _sumOfWeights = 0.0, _sumOfWeightLogWeights = 0.0;
double _startingEntropy = 0.0;
List<int> _sumsOfOnes = [];
List<double> _sumsOfWeights = [];
List<double> _sumsOfWeightLogWeights = [];
List<double> _entropies = [];
// temporaries
List<double> _distribution = [];
@ -53,22 +46,7 @@ class Wfc<T> {
_distribution = [for (var t = 0; t < _nShingles; t++) 0.0];
_observed = [for (var r = 0; r < _n; r++) null];
_weightLogWeights = [
for (var t = 0; t < _nShingles; t++) _weight(t) * math.log(_weight(t))
];
_sumOfWeights = 0.0;
_sumOfWeightLogWeights = 0.0;
for (var t = 0; t < _nShingles; t++) {
_sumOfWeights += _weight(t);
_sumOfWeightLogWeights += _weightLogWeights[t];
}
_startingEntropy =
math.log(_sumOfWeights) - _sumOfWeightLogWeights / _sumOfWeights;
_sumsOfOnes = [for (var r = 0; r < _n; r++) 0];
_sumsOfWeights = [for (var r = 0; r < _n; r++) 0.0];
_sumsOfWeightLogWeights = [for (var r = 0; r < _n; r++) 0.0];
_entropies = [for (var r = 0; r < _n; r++) 0.0];
_stack = [for (var r = 0; r < _n * _nShingles; r++) (0, 0)];
_stacksize = 0;
@ -85,9 +63,6 @@ class Wfc<T> {
}
_sumsOfOnes[i] = _nShingles;
_sumsOfWeights[i] = _sumOfWeights;
_sumsOfWeightLogWeights[i] = _sumOfWeightLogWeights;
_entropies[i] = _startingEntropy;
_observed[i] = null;
}
}
@ -164,7 +139,7 @@ class Wfc<T> {
continue;
}
var remainingValues = _sumsOfOnes[i];
double entropy = remainingValues.toDouble(); // _entropies[i];
double entropy = remainingValues.toDouble();
if (remainingValues > 1 && entropy <= min) {
double noise = 1E-6 * random.nextDouble();
if (entropy + noise < min) {
@ -235,11 +210,6 @@ class Wfc<T> {
_stacksize++;
_sumsOfOnes[i] -= 1;
_sumsOfWeights[i] -= _weight(t);
_sumsOfWeightLogWeights[i] -= _weightLogWeights[t];
var sum = _sumsOfWeights[i];
_entropies[i] = math.log(sum) - _sumsOfWeightLogWeights[i] / sum;
}
}
@ -266,7 +236,6 @@ class WfcTemplate<T> {
final List<T> bitmap = [];
for (var i = 0; i < sx * sy; i++) {
var pixel = bytedata.getUint32(i * 4, Endian.little);
log("pixel: $pixel");
bitmap.add(cb(pixel));
}