24 #ifndef PXR_IMAGING_HD_TIME_SAMPLE_ARRAY_H
25 #define PXR_IMAGING_HD_TIME_SAMPLE_ARRAY_H
28 #include "pxr/imaging/hd/api.h"
29 #include "pxr/imaging/hd/version.h"
31 #include "pxr/base/vt/value.h"
37 PXR_NAMESPACE_OPEN_SCOPE
41 inline T HdResampleNeighbors(
float alpha,
const T& v0,
const T& v1)
43 return GfLerp(alpha, v0, v1);
48 inline GfQuatf HdResampleNeighbors(
float alpha,
52 return GfSlerp(
double(alpha), v0, v1);
57 inline VtArray<T> HdResampleNeighbors(
float alpha,
62 for (
size_t i=0; i < r.size(); ++i) {
63 r[i] = HdResampleNeighbors(alpha, v0[i], v1[i]);
77 T HdResampleRawTimeSamples(
83 if (numSamples == 0) {
89 for (; i < numSamples; ++i) {
101 }
else if (i == numSamples) {
103 return vs[numSamples-1];
104 }
else if (us[i] == us[i-1]) {
107 TF_WARN(
"HdResampleRawTimeSamples: overlapping samples at %f; "
108 "using first sample", us[i]);
112 float alpha = (us[i]-u) / (us[i]-us[i-1]);
113 return HdResampleNeighbors(alpha, vs[i-1], vs[i]);
121 template <
typename T>
122 std::pair<T, VtIntArray> HdResampleRawTimeSamples(
127 const VtIntArray *is)
129 if (numSamples == 0) {
131 return std::pair<T, VtIntArray>(T(), VtIntArray(0));
135 for (; i < numSamples; ++i) {
138 return std::pair<T, VtIntArray>(vs[i], is[i]);
146 return std::pair<T, VtIntArray>(vs[0], is[0]);
147 }
else if (i == numSamples) {
149 return std::pair<T, VtIntArray>(vs[numSamples-1], is[numSamples-1]);
150 }
else if (us[i] == us[i-1]) {
153 TF_WARN(
"HdResampleRawTimeSamples: overlapping samples at %f; "
154 "using first sample", us[i]);
155 return std::pair<T, VtIntArray>(vs[i-1], is[i-1]);
159 float alpha = (us[i]-u) / (us[i]-us[i-1]);
160 return std::pair<T, VtIntArray>(
161 HdResampleNeighbors(alpha, vs[i-1], vs[i]),
171 template<
typename TYPE,
unsigned int CAPACITY>
194 virtual void Resize(
unsigned int newSize) {
203 return HdResampleRawTimeSamples(u, count, times.
data(), values.
data());
216 for (
size_t i=0; i < box.count; ++i) {
217 if (box.values[i].GetArraySize() > 0) {
218 values[i] = box.values[i].template Get<TYPE>();
232 template<
typename TYPE,
unsigned int CAPACITY>
241 indices = rhs.indices;
246 this->times = rhs.times;
247 this->values = rhs.values;
248 this->count = rhs.count;
249 indices = rhs.indices;
254 void Resize(
unsigned int newSize)
override {
262 return HdResampleRawTimeSamples(u, this->count, this->times.
data(),
263 this->values.
data(), indices.
data());
276 this->times = box.times;
277 indices = box.indices;
278 for (
size_t i=0; i < box.count; ++i) {
279 if (box.values[i].GetArraySize() > 0) {
280 this->values[i] = box.values[i].template Get<TYPE>();
282 this->values[i] = TYPE();
290 PXR_NAMESPACE_CLOSE_SCOPE
292 #endif // PXR_IMAGING_HD_TIME_SAMPLE_ARRAY_H
Assorted mathematical utility functions.
value_type * data()
Direct access to the underlying array.
#define TF_WARN(...)
Issue a warning, but continue execution.
#define TF_CODING_ERROR(fmt, args)
Issue an internal programming error, but continue execution.
Low-level utilities for informing users of various internal and external diagnostic conditions...
TYPE Resample(float u) const
Convience method for invoking HdResampleRawTimeSamples on this HdTimeSampleArray. ...
Basic type: a quaternion, a complex number with a real coefficient and three imaginary coefficients...
GF_API GfQuatd GfSlerp(double alpha, const GfQuatd &q0, const GfQuatd &q1)
Spherically linearly interpolate between q0 and q1.
void resize(size_type newSize, const value_type &v=value_type())
Resize the vector to newSize and insert copies of .
T GfLerp(double alpha, const T &a, const T &b)
Linear interpolation function.
size_t size() const
Return the total number of elements in this array.
Represents an arbitrary dimensional rectangular container class.
void UnboxFrom(HdTimeSampleArray< VtValue, CAPACITY > const &box)
Unbox an HdTimeSampleArray holding boxed VtValue<VtArray<T>> samples into an array holding VtArray<T>...
void Resize(unsigned int newSize) override
Resize the internal buffers.
An array of a value sampled over time, in struct-of-arrays layout.
virtual void Resize(unsigned int newSize)
Resize the internal buffers.
An array of a value and its indices sampled over time, in struct-of-arrays layout.
void UnboxFrom(HdIndexedTimeSampleArray< VtValue, CAPACITY > const &box)
Unbox an HdIndexedTimeSampleArray holding boxed VtValue<VtArray<T>> samples into an array holding VtA...
Provides a container which may hold any type, and provides introspection and iteration over array typ...
std::pair< TYPE, VtIntArray > ResampleIndexed(float u) const
Convience method for invoking HdResampleRawTimeSamples on this HdIndexedTimeSampleArray.