mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-05 09:11:04 +00:00
5ff9edf4f9
Note: this round fixes clang / gcc -Wetra warnings. More fixing remains for icc -w3 errors.
201 lines
5.8 KiB
C++
201 lines
5.8 KiB
C++
//
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// Copyright 2013 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#ifndef HBRFVARDATA_H
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#define HBRFVARDATA_H
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#include <cstring>
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#include <cmath>
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#include "../version.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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template <class T> class HbrFVarEdit;
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template <class T> class HbrFace;
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template <class T> class HbrVertex;
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// This class implements a "face varying vector item". Really it's
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// just a smart wrapper around face varying data (itself just a bunch
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// of floats) stored on each vertex.
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template <class T> class HbrFVarData {
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private:
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HbrFVarData()
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: faceid(0), initialized(0) {
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}
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~HbrFVarData() {
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Uninitialize();
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}
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HbrFVarData(const HbrFVarData &/* data */) {}
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public:
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// Sets the face id
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void SetFaceID(int id) {
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faceid = id;
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}
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// Returns the id of the face to which this data is bound
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int GetFaceID() const {
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return faceid;
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}
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// Clears the initialized flag
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void Uninitialize() {
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initialized = 0;
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faceid = 0;
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}
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// Returns initialized flag
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bool IsInitialized() const {
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return initialized;
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}
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// Sets initialized flag
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void SetInitialized() {
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initialized = 1;
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}
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// Return the data from the NgpFVVector
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float* GetData(int item) { return data + item; }
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// Clears the indicates value of this item
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void Clear(int startindex, int width) {
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memset(data + startindex, 0, width * sizeof(float));
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}
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// Clears all values of this item
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void ClearAll(int width) {
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initialized = 1;
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memset(data, 0, width * sizeof(float));
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}
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// Set values of the indicated item (with the indicated weighing)
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// on this item
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void SetWithWeight(const HbrFVarData& fvvi, int startindex, int width, float weight) {
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float *dst = data + startindex;
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const float *src = fvvi.data + startindex;
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for (int i = 0; i < width; ++i) {
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*dst++ = weight * *src++;
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}
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}
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// Add values of the indicated item (with the indicated weighing)
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// to this item
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void AddWithWeight(const HbrFVarData& fvvi, int startindex, int width, float weight) {
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float *dst = data + startindex;
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const float *src = fvvi.data + startindex;
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for (int i = 0; i < width; ++i) {
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*dst++ += weight * *src++;
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}
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}
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// Add all values of the indicated item (with the indicated
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// weighing) to this item
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void AddWithWeightAll(const HbrFVarData& fvvi, int width, float weight) {
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float *dst = data;
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const float *src = fvvi.data;
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for (int i = 0; i < width; ++i) {
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*dst++ += weight * *src++;
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}
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}
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// Compare all values item against a float buffer. Returns true
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// if all values match
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bool CompareAll(int width, const float *values, float tolerance=0.0f) const {
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if (!initialized) return false;
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for (int i = 0; i < width; ++i) {
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if (fabsf(values[i] - data[i]) > tolerance) return false;
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}
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return true;
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}
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// Initializes data
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void SetAllData(int width, const float *values) {
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initialized = 1;
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memcpy(data, values, width * sizeof(float));
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}
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// Compare this item against another item with tolerance. Returns
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// true if it compares identical
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bool Compare(const HbrFVarData& fvvi, int startindex, int width, float tolerance=0.0f) const {
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for (int i = 0; i < width; ++i) {
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if (fabsf(data[startindex + i] - fvvi.data[startindex + i]) > tolerance) return false;
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}
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return true;
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}
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// Modify the data of the item with an edit
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void ApplyFVarEdit(const HbrFVarEdit<T>& edit);
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friend class HbrVertex<T>;
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private:
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unsigned int faceid:31;
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unsigned int initialized:1;
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float data[1];
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};
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} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
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} // end namespace OpenSubdiv
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#include "../hbr/fvarEdit.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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template <class T>
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void
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HbrFVarData<T>::ApplyFVarEdit(const HbrFVarEdit<T>& edit) {
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float *dst = data + edit.GetIndex() + edit.GetOffset();
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const float *src = edit.GetEdit();
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for (int i = 0; i < edit.GetWidth(); ++i) {
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switch(edit.GetOperation()) {
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case HbrVertexEdit<T>::Set:
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*dst++ = *src++;
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break;
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case HbrVertexEdit<T>::Add:
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*dst++ += *src++;
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break;
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case HbrVertexEdit<T>::Subtract:
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*dst++ -= *src++;
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}
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}
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initialized = 1;
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}
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} // end namespace OPENSUBDIV_VERSION
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using namespace OPENSUBDIV_VERSION;
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} // end namespace OpenSubdiv
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#endif /* HBRFVARDATA_H */
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