mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-12-12 03:50:09 +00:00
59edf56416
output iterators instead of std::vector - eases prman integration for cases where std::list makes more sense. Block allocate face children array in common case (<= 4 children). Other, minor consistency edits.
224 lines
7.4 KiB
C++
224 lines
7.4 KiB
C++
//
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// Copyright (C) Pixar. All rights reserved.
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//
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// This license governs use of the accompanying software. If you
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// use the software, you accept this license. If you do not accept
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// the license, do not use the software.
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//
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// 1. Definitions
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// The terms "reproduce," "reproduction," "derivative works," and
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// "distribution" have the same meaning here as under U.S.
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// copyright law. A "contribution" is the original software, or
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// any additions or changes to the software.
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// A "contributor" is any person or entity that distributes its
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// contribution under this license.
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// "Licensed patents" are a contributor's patent claims that read
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// directly on its contribution.
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//
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// 2. Grant of Rights
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// (A) Copyright Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free copyright license to reproduce its contribution,
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// prepare derivative works of its contribution, and distribute
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// its contribution or any derivative works that you create.
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// (B) Patent Grant- Subject to the terms of this license,
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// including the license conditions and limitations in section 3,
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// each contributor grants you a non-exclusive, worldwide,
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// royalty-free license under its licensed patents to make, have
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// made, use, sell, offer for sale, import, and/or otherwise
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// dispose of its contribution in the software or derivative works
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// of the contribution in the software.
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//
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// 3. Conditions and Limitations
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// (A) No Trademark License- This license does not grant you
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// rights to use any contributor's name, logo, or trademarks.
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// (B) If you bring a patent claim against any contributor over
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// patents that you claim are infringed by the software, your
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// patent license from such contributor to the software ends
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// automatically.
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// (C) If you distribute any portion of the software, you must
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// retain all copyright, patent, trademark, and attribution
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// notices that are present in the software.
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// (D) If you distribute any portion of the software in source
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// code form, you may do so only under this license by including a
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// complete copy of this license with your distribution. If you
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// distribute any portion of the software in compiled or object
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// code form, you may only do so under a license that complies
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// with this license.
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// (E) The software is licensed "as-is." You bear the risk of
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// using it. The contributors give no express warranties,
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// guarantees or conditions. You may have additional consumer
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// rights under your local laws which this license cannot change.
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// To the extent permitted under your local laws, the contributors
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// exclude the implied warranties of merchantability, fitness for
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// a particular purpose and non-infringement.
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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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// 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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public:
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HbrFVarData(float *dataptr)
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: initialized(false), face(0), data(dataptr) {
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}
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~HbrFVarData() {
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Uninitialize();
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}
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// Sets the face pointer
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void SetFace(const HbrFace<T> *_face) {
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face = _face;
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}
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// Returns the face pointer
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const HbrFace<T> * GetFace() const {
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return face;
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}
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// Clears the initialized flag
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void Uninitialize() {
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initialized = false;
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face = 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 = true;
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}
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// Return the data from the NgpFVVector
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float* GetData(int item) const { 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 = true;
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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, *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, *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, *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 = true;
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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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private:
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bool initialized;
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const HbrFace<T> *face;
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float* const data;
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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 = true;
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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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