mirror of
https://git.mirrors.martin98.com/https://github.com/google/draco
synced 2025-08-01 22:00:36 +08:00
44 lines
1.2 KiB
Markdown
44 lines
1.2 KiB
Markdown
|
|
## Prediction Scheme Wrap Transform
|
|
|
|
### DecodeTransformData()
|
|
|
|
~~~~~
|
|
DecodeTransformData(buffer) {
|
|
min_value_ DT
|
|
max_value_ DT
|
|
}
|
|
~~~~~
|
|
|
|
|
|
### ComputeOriginalValue()
|
|
|
|
~~~~~
|
|
ComputeOriginalValue(const DataTypeT *predicted_vals,
|
|
const CorrTypeT *corr_vals,
|
|
DataTypeT *out_original_vals, int val_id) {
|
|
clamped_vals = ClampPredictedValue(predicted_vals);
|
|
ComputeOriginalValue(clamped_vals, corr_vals, out_original_vals, val_id)
|
|
// PredictionSchemeTransform_ComputeOriginalValue()
|
|
for (i = 0; i < this->num_components(); ++i) {
|
|
if (out_original_vals[i] > max_value_) {
|
|
out_original_vals[i] -= max_dif_;
|
|
} else if (out_original_vals[i] < min_value_) {
|
|
out_original_vals[i] += max_dif_;
|
|
}
|
|
}
|
|
~~~~~
|
|
|
|
|
|
### ClampPredictedValue()
|
|
|
|
~~~~~
|
|
ClampPredictedValue(const DataTypeT *predicted_val) {
|
|
for (i = 0; i < this->num_components(); ++i) {
|
|
clamped_value_[i] = min(predicted_val[i], max_value_)
|
|
clamped_value_[i] = max(predicted_val[i], min_value_)
|
|
}
|
|
return &clamped_value_[0];
|
|
}
|
|
~~~~~
|