OpenSubdiv/opensubdiv/osd/cpuVertexBuffer.cpp
manuelk c399655dcc Landing 3.0.0.alpha
Sync'ing the 'dev' branch with the 'feature_3.0dev' branch at commit 68c6d11fc36761ae1a5e6cdc3457be16f2e9704a

The branch 'feature_3.0dev' is now locked and preserved for historical purposes.
2014-09-05 15:07:46 -07:00

83 lines
2.1 KiB
C++

//
// Copyright 2013 Pixar
//
// Licensed under the Apache License, Version 2.0 (the "Apache License")
// with the following modification; you may not use this file except in
// compliance with the Apache License and the following modification to it:
// Section 6. Trademarks. is deleted and replaced with:
//
// 6. Trademarks. This License does not grant permission to use the trade
// names, trademarks, service marks, or product names of the Licensor
// and its affiliates, except as required to comply with Section 4(c) of
// the License and to reproduce the content of the NOTICE file.
//
// You may obtain a copy of the Apache License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the Apache License with the above modification is
// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the Apache License for the specific
// language governing permissions and limitations under the Apache License.
//
#include "../osd/cpuVertexBuffer.h"
#include <string.h>
namespace OpenSubdiv {
namespace OPENSUBDIV_VERSION {
namespace Osd {
CpuVertexBuffer::CpuVertexBuffer(int numElements, int numVertices)
: _numElements(numElements),
_numVertices(numVertices),
_cpuBuffer(NULL) {
_cpuBuffer = new float[numElements * numVertices];
}
CpuVertexBuffer::~CpuVertexBuffer() {
delete[] _cpuBuffer;
}
CpuVertexBuffer *
CpuVertexBuffer::Create(int numElements, int numVertices) {
return new CpuVertexBuffer(numElements, numVertices);
}
void
CpuVertexBuffer::UpdateData(const float *src, int startVertex, int numVertices) {
memcpy(_cpuBuffer + startVertex * _numElements,
src, GetNumElements() * numVertices * sizeof(float));
}
int
CpuVertexBuffer::GetNumElements() const {
return _numElements;
}
int
CpuVertexBuffer::GetNumVertices() const {
return _numVertices;
}
float*
CpuVertexBuffer::BindCpuBuffer() {
return _cpuBuffer;
}
} // end namespace Osd
} // end namespace OPENSUBDIV_VERSION
} // end namespace OpenSubdiv