7a97105b28
This is the first step into merging DRW_gpu_wrapper.hh into the GPU module. This is very similar to #119825. Pull Request: https://projects.blender.org/blender/blender/pulls/144329
101 lines
2.6 KiB
C++
101 lines
2.6 KiB
C++
/* SPDX-FileCopyrightText: 2025 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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#include "GPU_storage_buffer.hh"
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#include <opensubdiv/version.h>
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#include <opensubdiv/osd/nonCopyable.h>
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#include <opensubdiv/osd/types.h>
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using OpenSubdiv::Far::PatchTable;
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using OpenSubdiv::Osd::NonCopyable;
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using OpenSubdiv::Osd::PatchArrayVector;
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namespace blender::opensubdiv {
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// TODO: use Blenlib NonCopyable.
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class GPUPatchTable : private NonCopyable<GPUPatchTable> {
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public:
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~GPUPatchTable();
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static GPUPatchTable *Create(PatchTable const *farPatchTable, void *deviceContext = NULL);
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/// Returns the patch arrays for vertex index buffer data
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PatchArrayVector const &GetPatchArrays() const
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{
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return _patchArrays;
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}
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/// Returns the GL index buffer containing the patch control vertices
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gpu::StorageBuf *GetPatchIndexBuffer() const
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{
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return _patchIndexBuffer;
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}
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/// Returns the GL index buffer containing the patch parameter
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gpu::StorageBuf *GetPatchParamBuffer() const
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{
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return _patchParamBuffer;
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}
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/// Returns the patch arrays for varying index buffer data
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PatchArrayVector const &GetVaryingPatchArrays() const
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{
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return _varyingPatchArrays;
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}
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/// Returns the GL index buffer containing the varying control vertices
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gpu::StorageBuf *GetVaryingPatchIndexBuffer() const
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{
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return _varyingIndexBuffer;
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}
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/// Returns the number of face-varying channel buffers
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int GetNumFVarChannels() const
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{
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return (int)_fvarPatchArrays.size();
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}
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/// Returns the patch arrays for face-varying index buffer data
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PatchArrayVector const &GetFVarPatchArrays(int fvarChannel = 0) const
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{
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return _fvarPatchArrays[fvarChannel];
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}
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/// Returns the GL index buffer containing face-varying control vertices
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gpu::StorageBuf *GetFVarPatchIndexBuffer(int fvarChannel = 0) const
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{
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return _fvarIndexBuffers[fvarChannel];
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}
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/// Returns the GL index buffer containing face-varying patch params
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gpu::StorageBuf *GetFVarPatchParamBuffer(int fvarChannel = 0) const
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{
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return _fvarParamBuffers[fvarChannel];
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}
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protected:
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GPUPatchTable() {}
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// allocate buffers from patchTable
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bool allocate(PatchTable const *farPatchTable);
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PatchArrayVector _patchArrays;
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gpu::StorageBuf *_patchIndexBuffer = nullptr;
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gpu::StorageBuf *_patchParamBuffer = nullptr;
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PatchArrayVector _varyingPatchArrays;
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gpu::StorageBuf *_varyingIndexBuffer = nullptr;
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std::vector<PatchArrayVector> _fvarPatchArrays;
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std::vector<gpu::StorageBuf *> _fvarIndexBuffers;
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std::vector<gpu::StorageBuf *> _fvarParamBuffers;
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};
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} // namespace blender::opensubdiv
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