mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
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102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
//
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// Copyright 2015 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 OPENSUBDIV3_OSD_CPU_PATCH_TABLE_H
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#define OPENSUBDIV3_OSD_CPU_PATCH_TABLE_H
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#include "../version.h"
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#include <vector>
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#include "../far/patchDescriptor.h"
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#include "../osd/nonCopyable.h"
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#include "../osd/types.h"
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Far{
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class PatchTable;
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};
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namespace Osd {
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/// \brief Cpu patch table
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///
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/// XXX: We can use just Far::PatchTable for typical CpuEval use cases.
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///
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/// Currently this class exists because of the template resolution
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/// for the CpuEvaluator's generic interface functions
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/// (glEvalLimit example uses), and
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/// device-specific patch tables such as GLPatchTables internally use
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/// as a staging buffer to splice patcharray and interleave sharpnesses.
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///
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/// Ideally Far::PatchTables should have the same data representation
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/// and accessors so that we don't have to copy data unnecessarily.
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///
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class CpuPatchTable {
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public:
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static CpuPatchTable *Create(const Far::PatchTable *patchTable,
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void *deviceContext = NULL) {
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(void)deviceContext; // unused
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return new CpuPatchTable(patchTable);
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}
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explicit CpuPatchTable(const Far::PatchTable *patchTable);
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~CpuPatchTable() {}
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const PatchArray *GetPatchArrayBuffer() const {
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return &_patchArrays[0];
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}
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const int *GetPatchIndexBuffer() const {
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return &_indexBuffer[0];
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}
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const PatchParam *GetPatchParamBuffer() const {
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return &_patchParamBuffer[0];
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}
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size_t GetNumPatchArrays() const {
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return _patchArrays.size();
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}
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size_t GetPatchIndexSize() const {
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return _indexBuffer.size();
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}
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size_t GetPatchParamSize() const {
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return _patchParamBuffer.size();
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}
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protected:
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PatchArrayVector _patchArrays;
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std::vector<int> _indexBuffer;
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PatchParamVector _patchParamBuffer;
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};
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} // end namespace Osd
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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 // OPENSUBDIV3_OSD_CPU_PATCH_TABLE_H
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