mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2025-01-07 23:40:12 +00:00
93 lines
2.4 KiB
C++
93 lines
2.4 KiB
C++
//
|
|
// Copyright 2013 Pixar
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License
|
|
// and the following modification to it: Section 6 Trademarks.
|
|
// 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 for reproducing
|
|
// the content of the NOTICE file.
|
|
//
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing,
|
|
// software distributed under the License is distributed on an
|
|
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
|
|
// either express or implied. See the License for the specific
|
|
// language governing permissions and limitations under the
|
|
// License.
|
|
//
|
|
|
|
#include "../osd/cudaVertexBuffer.h"
|
|
|
|
#include <cuda_runtime.h>
|
|
#include <cassert>
|
|
|
|
namespace OpenSubdiv {
|
|
namespace OPENSUBDIV_VERSION {
|
|
|
|
OsdCudaVertexBuffer::OsdCudaVertexBuffer(int numElements, int numVertices)
|
|
: _numElements(numElements),
|
|
_numVertices(numVertices),
|
|
_cudaMem(0) {
|
|
}
|
|
|
|
OsdCudaVertexBuffer::~OsdCudaVertexBuffer() {
|
|
if (_cudaMem) cudaFree(_cudaMem);
|
|
}
|
|
|
|
OsdCudaVertexBuffer *
|
|
OsdCudaVertexBuffer::Create(int numElements, int numVertices) {
|
|
OsdCudaVertexBuffer *instance =
|
|
new OsdCudaVertexBuffer(numElements, numVertices);
|
|
if (instance->allocate()) return instance;
|
|
delete instance;
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
OsdCudaVertexBuffer::UpdateData(const float *src, int startVertex, int numVertices) {
|
|
|
|
size_t size = _numElements * numVertices * sizeof(float);
|
|
|
|
cudaMemcpy((float*)_cudaMem + _numElements * startVertex,
|
|
src, size, cudaMemcpyHostToDevice);
|
|
}
|
|
|
|
int
|
|
OsdCudaVertexBuffer::GetNumElements() const {
|
|
|
|
return _numElements;
|
|
}
|
|
|
|
int
|
|
OsdCudaVertexBuffer::GetNumVertices() const {
|
|
|
|
return _numVertices;
|
|
}
|
|
|
|
float *
|
|
OsdCudaVertexBuffer::BindCudaBuffer() {
|
|
|
|
return static_cast<float*>(_cudaMem);
|
|
}
|
|
|
|
bool
|
|
OsdCudaVertexBuffer::allocate() {
|
|
int size = _numElements * _numVertices * sizeof(float);
|
|
|
|
cudaError_t err = cudaMalloc(&_cudaMem, size);
|
|
|
|
if (err != cudaSuccess) return false;
|
|
return true;
|
|
}
|
|
|
|
} // end namespace OPENSUBDIV_VERSION
|
|
} // end namespace OpenSubdiv
|
|
|