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https://github.com/PixarAnimationStudios/OpenSubdiv
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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.
163 lines
5.7 KiB
C++
Executable File
163 lines
5.7 KiB
C++
Executable File
//
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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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#ifndef OSD_D3D11_COMPUTE_KERNEL_BUNDLE_H
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#define OSD_D3D11_COMPUTE_KERNEL_BUNDLE_H
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#include "../version.h"
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#include "../osd/nonCopyable.h"
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#include "../osd/vertexDescriptor.h"
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struct ID3D11Buffer;
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struct ID3D11ClassInstance;
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struct ID3D11ClassLinkage;
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struct ID3D11ComputeShader;
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struct ID3D11DeviceContext;
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namespace OpenSubdiv {
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namespace OPENSUBDIV_VERSION {
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class OsdD3D11ComputeKernelBundle : OsdNonCopyable<OsdD3D11ComputeKernelBundle> {
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public:
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/// Constructor
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OsdD3D11ComputeKernelBundle(ID3D11DeviceContext *deviceContext);
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/// Destructor
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~OsdD3D11ComputeKernelBundle();
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bool Compile(OsdVertexBufferDescriptor const &vertexDesc,
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OsdVertexBufferDescriptor const &varyingDesc);
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void ApplyBilinearFaceVerticesKernel(
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int vertexOffset, int tableOffset, int start, int end,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyBilinearEdgeVerticesKernel(
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int vertexOffset, int tableOffset, int start, int end,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyBilinearVertexVerticesKernel(
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int vertexOffset, int tableOffset, int start, int end,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyCatmarkFaceVerticesKernel(
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int vertexOffset, int tableOffset, int start, int end,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyCatmarkEdgeVerticesKernel(
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int vertexOffset, int tableOffset, int start, int end,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyCatmarkVertexVerticesKernelB(
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int vertexOffset, int tableOffset, int start, int end,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyCatmarkVertexVerticesKernelA(
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int vertexOffset, int tableOffset, int start, int end, bool pass,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyLoopEdgeVerticesKernel(
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int vertexOffset, int tableOffset, int start, int end,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyLoopVertexVerticesKernelB(
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int vertexOffset, int tableOffset, int start, int end,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyLoopVertexVerticesKernelA(
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int vertexOffset, int tableOffset, int start, int end, bool pass,
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int vertexBaseOffset, int varyingBaseOffset);
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void ApplyEditAdd(int primvarOffset, int primvarWidth,
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int vertexOffset, int tableOffset, int start, int end,
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int vertexBaseOffset, int varyingBaseOffset);
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struct Match {
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/// Constructor
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Match(OsdVertexBufferDescriptor const &vertex,
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OsdVertexBufferDescriptor const &varying)
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: vertexDesc(vertex), varyingDesc(varying) {
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}
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bool operator() (OsdD3D11ComputeKernelBundle const *kernel) {
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// offset is dynamic. just comparing length and stride here,
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// returns true if they are equal
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return (vertexDesc.length == kernel->_numVertexElements and
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vertexDesc.stride == kernel->_vertexStride and
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varyingDesc.length == kernel->_numVaryingElements and
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varyingDesc.stride == kernel->_varyingStride);
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}
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OsdVertexBufferDescriptor vertexDesc;
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OsdVertexBufferDescriptor varyingDesc;
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};
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friend struct Match;
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protected:
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struct KernelCB;
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void dispatchCompute(ID3D11ClassInstance * kernel, KernelCB const & args);
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ID3D11DeviceContext * _deviceContext;
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ID3D11ComputeShader * _computeShader;
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ID3D11ClassLinkage * _classLinkage;
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ID3D11Buffer * _kernelCB; // constant buffer
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ID3D11ClassInstance * _kernelComputeFace; // general face-vertex kernel (all schemes)
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ID3D11ClassInstance * _kernelComputeEdge; // edge-vertex kernel (catmark + loop schemes)
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ID3D11ClassInstance * _kernelComputeBilinearEdge; // edge-vertex kernel (bilinear scheme)
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ID3D11ClassInstance * _kernelComputeVertex; // vertex-vertex kernel (bilinear scheme)
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ID3D11ClassInstance * _kernelComputeVertexA; // vertex-vertex kernel A (catmark + loop schemes)
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ID3D11ClassInstance * _kernelComputeCatmarkVertexB; // vertex-vertex kernel B (catmark scheme)
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ID3D11ClassInstance * _kernelComputeLoopVertexB; // vertex-vertex kernel B (loop scheme)
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ID3D11ClassInstance * _kernelEditAdd; // hedit kernel (add)
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int _workGroupSize;
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int _numVertexElements;
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int _vertexStride;
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int _numVaryingElements;
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int _varyingStride;
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};
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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 // OSD_D3D11_COMPUTE_KERNEL_BUNDLE_H
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