mirror of
https://github.com/PixarAnimationStudios/OpenSubdiv
synced 2024-11-23 12:10:08 +00:00
ee061291b7
All kernels take offset/length/stride to apply subdivision partially in each vertex elements. Also the offset can be used for client-based VBO aggregation, without modifying index buffers. This is useful for topology sharing, in conjunction with glDrawElementsBaseVertex etc. However, gregory patch shader fetches vertex buffer via texture buffer, which index should also be offsetted too. Although gl_BaseVertexARB extension should be able to do that job, it's a relatively new extension. So we use OsdBaseVertex() call to mitigate the compatibility issue as clients can provide it in their way at least for the time being.
121 lines
3.8 KiB
C++
121 lines
3.8 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.
|
|
//
|
|
|
|
#ifndef OSD_CL_KERNEL_BUNDLE_H
|
|
#define OSD_CL_KERNEL_BUNDLE_H
|
|
|
|
#include "../version.h"
|
|
|
|
#include "../osd/nonCopyable.h"
|
|
#include "../osd/vertexDescriptor.h"
|
|
|
|
#if defined(__APPLE__)
|
|
#include <OpenCL/opencl.h>
|
|
#else
|
|
#include <CL/opencl.h>
|
|
#endif
|
|
|
|
|
|
namespace OpenSubdiv {
|
|
namespace OPENSUBDIV_VERSION {
|
|
|
|
class OsdCLKernelBundle : OsdNonCopyable<OsdCLKernelBundle> {
|
|
|
|
public:
|
|
OsdCLKernelBundle();
|
|
~OsdCLKernelBundle();
|
|
|
|
bool Compile(cl_context clContext,
|
|
OsdVertexBufferDescriptor const &vertexDesc,
|
|
OsdVertexBufferDescriptor const &varyingDesc);
|
|
|
|
cl_kernel GetBilinearEdgeKernel() const { return _clBilinearEdge; }
|
|
|
|
cl_kernel GetBilinearVertexKernel() const { return _clBilinearVertex; }
|
|
|
|
cl_kernel GetCatmarkFaceKernel() const { return _clCatmarkFace; }
|
|
|
|
cl_kernel GetCatmarkEdgeKernel() const { return _clCatmarkEdge; }
|
|
|
|
cl_kernel GetCatmarkVertexKernelA() const { return _clCatmarkVertexA; }
|
|
|
|
cl_kernel GetCatmarkVertexKernelB() const { return _clCatmarkVertexB; }
|
|
|
|
cl_kernel GetLoopEdgeKernel() const { return _clLoopEdge; }
|
|
|
|
cl_kernel GetLoopVertexKernelA() const { return _clLoopVertexA; }
|
|
|
|
cl_kernel GetLoopVertexKernelB() const { return _clLoopVertexB; }
|
|
|
|
cl_kernel GetVertexEditAdd() const { return _clVertexEditAdd; }
|
|
|
|
struct Match {
|
|
/// Constructor
|
|
Match(OsdVertexBufferDescriptor const &vertex,
|
|
OsdVertexBufferDescriptor const &varying)
|
|
: vertexDesc(vertex), varyingDesc(varying) {
|
|
}
|
|
|
|
bool operator() (OsdCLKernelBundle const *kernel) {
|
|
// offset is dynamic. just comparing length and stride here,
|
|
// returns true if they are equal
|
|
return (vertexDesc.length == kernel->_numVertexElements and
|
|
vertexDesc.stride == kernel->_vertexStride and
|
|
varyingDesc.length == kernel->_numVaryingElements and
|
|
varyingDesc.stride == kernel->_varyingStride);
|
|
}
|
|
|
|
OsdVertexBufferDescriptor vertexDesc;
|
|
OsdVertexBufferDescriptor varyingDesc;
|
|
};
|
|
|
|
friend struct Match;
|
|
|
|
protected:
|
|
cl_program _clProgram;
|
|
|
|
cl_kernel _clBilinearEdge,
|
|
_clBilinearVertex,
|
|
_clCatmarkFace,
|
|
_clCatmarkEdge,
|
|
_clCatmarkVertexA,
|
|
_clCatmarkVertexB,
|
|
_clLoopEdge,
|
|
_clLoopVertexA,
|
|
_clLoopVertexB,
|
|
_clVertexEditAdd;
|
|
|
|
int _numVertexElements;
|
|
int _vertexStride;
|
|
int _numVaryingElements;
|
|
int _varyingStride;
|
|
};
|
|
|
|
} // end namespace OPENSUBDIV_VERSION
|
|
using namespace OPENSUBDIV_VERSION;
|
|
|
|
} // end namespace OpenSubdiv
|
|
|
|
#endif // OSD_CL_KERNEL_BUNDLE_H
|