mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2025-01-02 13:20:10 +00:00
c399655dcc
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.
103 lines
2.9 KiB
C++
103 lines
2.9 KiB
C++
//
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//
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// Copyright 2013 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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#include "../osd/clVertexBuffer.h"
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#include <cassert>
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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namespace Osd {
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CLVertexBuffer::CLVertexBuffer(int numElements, int numVertices,
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cl_context /* clContext */)
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: _numElements(numElements), _numVertices(numVertices), _clMemory(NULL) {
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}
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CLVertexBuffer::~CLVertexBuffer() {
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clReleaseMemObject(_clMemory);
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}
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CLVertexBuffer *
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CLVertexBuffer::Create(int numElements, int numVertices,
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cl_context clContext) {
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CLVertexBuffer *instance =
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new CLVertexBuffer(numElements, numVertices, clContext);
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if (instance->allocate(clContext)) return instance;
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delete instance;
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return NULL;
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}
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void
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CLVertexBuffer::UpdateData(const float *src, int startVertex, int numVertices, cl_command_queue queue) {
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size_t size = _numElements * numVertices * sizeof(float);
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size_t offset = startVertex * _numElements * sizeof(float);
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clEnqueueWriteBuffer(queue, _clMemory, true, offset, size, src, 0, NULL, NULL);
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}
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int
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CLVertexBuffer::GetNumElements() const {
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return _numElements;
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}
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int
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CLVertexBuffer::GetNumVertices() const {
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return _numVertices;
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}
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cl_mem
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CLVertexBuffer::BindCLBuffer(cl_command_queue /* queue */) {
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return _clMemory;
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}
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bool
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CLVertexBuffer::allocate(cl_context clContext) {
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assert(clContext);
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int size = _numVertices * _numElements * sizeof(float);
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cl_int err;
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// XXX: do we really need a dummy buffer?
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float *ptr = new float[_numVertices * _numElements];
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_clMemory = clCreateBuffer(clContext, CL_MEM_READ_WRITE, size, ptr, &err);
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delete[] ptr;
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if (err != CL_SUCCESS) return false;
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return true;
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}
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} // end namespace Osd
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} // end namespace OPENSUBDIV_VERSION
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} // end namespace OpenSubdiv
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