4a95c0405c
`OpenSubdiv_Buffer` is a wrapper that was introduced at the time that Blender couldn't use CPP directly. It contains a pointer to a VertBuf and callbacks to use GPU module on that buffer. This PR replaces OpenSubdiv_Buffer with `blender::gpu::VertBuf` and removes the wrapper. NOTE: OpenSubdiv tests are added to blender_test executable to make the library dependencies not to complicated. Pull Request: https://projects.blender.org/blender/blender/pulls/135389
107 lines
4.2 KiB
C++
107 lines
4.2 KiB
C++
/* SPDX-FileCopyrightText: 2021 Blender Foundation
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*
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* Author: Sergey Sharybin. */
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#include "internal/evaluator/eval_output_gpu.h"
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#include "opensubdiv_evaluator.hh"
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using OpenSubdiv::Osd::PatchArray;
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using OpenSubdiv::Osd::PatchArrayVector;
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namespace blender::opensubdiv {
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static void buildPatchArraysBufferFromVector(const PatchArrayVector &patch_arrays,
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blender::gpu::VertBuf *patch_arrays_buffer)
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{
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const size_t patch_array_size = sizeof(PatchArray);
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const size_t patch_array_byte_site = patch_array_size * patch_arrays.size();
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GPU_vertbuf_data_alloc(*patch_arrays_buffer, patch_arrays.size());
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GPU_vertbuf_use(patch_arrays_buffer);
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GPU_vertbuf_update_sub(patch_arrays_buffer, 0, patch_array_byte_site, patch_arrays.data());
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}
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GpuEvalOutput::GpuEvalOutput(const StencilTable *vertex_stencils,
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const StencilTable *varying_stencils,
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const std::vector<const StencilTable *> &all_face_varying_stencils,
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const int face_varying_width,
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const PatchTable *patch_table,
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VolatileEvalOutput::EvaluatorCache *evaluator_cache)
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: VolatileEvalOutput<GLVertexBuffer,
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GLVertexBuffer,
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GLStencilTableSSBO,
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GLPatchTable,
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GLComputeEvaluator>(vertex_stencils,
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varying_stencils,
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all_face_varying_stencils,
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face_varying_width,
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patch_table,
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evaluator_cache)
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{
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}
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void GpuEvalOutput::fillPatchArraysBuffer(blender::gpu::VertBuf *patch_arrays_buffer)
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{
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GLPatchTable *patch_table = getPatchTable();
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buildPatchArraysBufferFromVector(patch_table->GetPatchArrays(), patch_arrays_buffer);
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}
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void GpuEvalOutput::wrapPatchIndexBuffer(blender::gpu::VertBuf *patch_index_buffer)
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{
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GLPatchTable *patch_table = getPatchTable();
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GPU_vertbuf_wrap_handle(patch_index_buffer, patch_table->GetPatchIndexBuffer());
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}
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void GpuEvalOutput::wrapPatchParamBuffer(blender::gpu::VertBuf *patch_param_buffer)
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{
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GLPatchTable *patch_table = getPatchTable();
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GPU_vertbuf_wrap_handle(patch_param_buffer, patch_table->GetPatchParamBuffer());
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}
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void GpuEvalOutput::wrapSrcBuffer(blender::gpu::VertBuf *src_buffer)
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{
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GLVertexBuffer *vertex_buffer = getSrcBuffer();
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GPU_vertbuf_wrap_handle(src_buffer, vertex_buffer->BindVBO());
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}
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void GpuEvalOutput::wrapSrcVertexDataBuffer(blender::gpu::VertBuf *src_buffer)
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{
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GLVertexBuffer *vertex_buffer = getSrcVertexDataBuffer();
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GPU_vertbuf_wrap_handle(src_buffer, vertex_buffer->BindVBO());
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}
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void GpuEvalOutput::fillFVarPatchArraysBuffer(const int face_varying_channel,
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blender::gpu::VertBuf *patch_arrays_buffer)
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{
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GLPatchTable *patch_table = getFVarPatchTable(face_varying_channel);
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buildPatchArraysBufferFromVector(patch_table->GetFVarPatchArrays(face_varying_channel),
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patch_arrays_buffer);
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}
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void GpuEvalOutput::wrapFVarPatchIndexBuffer(const int face_varying_channel,
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blender::gpu::VertBuf *patch_index_buffer)
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{
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GLPatchTable *patch_table = getFVarPatchTable(face_varying_channel);
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GPU_vertbuf_wrap_handle(patch_index_buffer,
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patch_table->GetFVarPatchIndexBuffer(face_varying_channel));
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}
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void GpuEvalOutput::wrapFVarPatchParamBuffer(const int face_varying_channel,
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blender::gpu::VertBuf *patch_param_buffer)
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{
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GLPatchTable *patch_table = getFVarPatchTable(face_varying_channel);
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GPU_vertbuf_wrap_handle(patch_param_buffer,
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patch_table->GetFVarPatchParamBuffer(face_varying_channel));
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}
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void GpuEvalOutput::wrapFVarSrcBuffer(const int face_varying_channel,
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blender::gpu::VertBuf *src_buffer)
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{
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GLVertexBuffer *vertex_buffer = getFVarSrcBuffer(face_varying_channel);
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GPU_vertbuf_wrap_handle(src_buffer, vertex_buffer->BindVBO());
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}
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} // namespace blender::opensubdiv
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