mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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128 lines
4.8 KiB
C++
128 lines
4.8 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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#include "../osd/cpuEvalLimitContext.h"
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#include "../osd/vertexDescriptor.h"
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#include <string.h>
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#include <cassert>
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#include <cstdio>
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#include <cmath>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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OsdCpuEvalLimitContext *
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OsdCpuEvalLimitContext::Create(FarMesh<OsdVertex> const * farmesh) {
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assert(farmesh);
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// we do not support uniform yet
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if (not farmesh->GetPatchTables())
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return NULL;
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return new OsdCpuEvalLimitContext(farmesh);
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}
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OsdCpuEvalLimitContext::OsdCpuEvalLimitContext(FarMesh<OsdVertex> const * farmesh) :
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OsdEvalLimitContext(farmesh) {
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FarPatchTables const * patchTables = farmesh->GetPatchTables();
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assert(patchTables);
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// copy the data from the FarTables
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_patches = patchTables->GetPatchTable();
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_patchArrays = patchTables->GetPatchArrayVector();
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_vertexValenceBuffer = patchTables->GetVertexValenceTable();
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_quadOffsetBuffer = patchTables->GetQuadOffsetTable();
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// Copy the bitfields, the faceId will be the key to our map
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int npatches = patchTables->GetNumPatches();
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_patchBitFields.reserve(npatches);
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FarPatchTables::PtexCoordinateTable const & ptxTable =
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patchTables->GetPtexCoordinatesTable();
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if ( not ptxTable.empty() ) {
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FarPtexCoord const * pptr = &ptxTable[0];
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for (int arrayId = 0; arrayId < (int)_patchArrays.size(); ++arrayId) {
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FarPatchTables::PatchArray const & pa = _patchArrays[arrayId];
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for (unsigned int j=0; j < pa.GetNumPatches(); ++j) {
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_patchBitFields.push_back( pptr++->bitField );
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}
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}
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}
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_patchMap = new OsdCpuEvalLimitContext::PatchMap( *patchTables );
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}
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OsdCpuEvalLimitContext::~OsdCpuEvalLimitContext() {
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delete _patchMap;
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}
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} // end namespace OPENSUBDIV_VERSION
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} // end namespace OpenSubdiv
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