115 lines
4.4 KiB
C++
115 lines
4.4 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_capi.hh"
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using OpenSubdiv::Osd::PatchArray;
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using OpenSubdiv::Osd::PatchArrayVector;
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namespace blender {
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namespace opensubdiv {
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namespace {
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static void buildPatchArraysBufferFromVector(const PatchArrayVector &patch_arrays,
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OpenSubdiv_Buffer *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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patch_arrays_buffer->device_alloc(patch_arrays_buffer, patch_arrays.size());
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patch_arrays_buffer->bind_gpu(patch_arrays_buffer);
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patch_arrays_buffer->device_update(
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patch_arrays_buffer, 0, patch_array_byte_site, &patch_arrays[0]);
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}
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} // namespace
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GpuEvalOutput::GpuEvalOutput(const StencilTable *vertex_stencils,
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const StencilTable *varying_stencils,
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const 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(OpenSubdiv_Buffer *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(OpenSubdiv_Buffer *patch_index_buffer)
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{
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GLPatchTable *patch_table = getPatchTable();
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patch_index_buffer->wrap_device_handle(patch_index_buffer, patch_table->GetPatchIndexBuffer());
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}
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void GpuEvalOutput::wrapPatchParamBuffer(OpenSubdiv_Buffer *patch_param_buffer)
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{
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GLPatchTable *patch_table = getPatchTable();
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patch_param_buffer->wrap_device_handle(patch_param_buffer, patch_table->GetPatchParamBuffer());
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}
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void GpuEvalOutput::wrapSrcBuffer(OpenSubdiv_Buffer *src_buffer)
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{
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GLVertexBuffer *vertex_buffer = getSrcBuffer();
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src_buffer->wrap_device_handle(src_buffer, vertex_buffer->BindVBO());
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}
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void GpuEvalOutput::wrapSrcVertexDataBuffer(OpenSubdiv_Buffer *src_buffer)
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{
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GLVertexBuffer *vertex_buffer = getSrcVertexDataBuffer();
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src_buffer->wrap_device_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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OpenSubdiv_Buffer *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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OpenSubdiv_Buffer *patch_index_buffer)
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{
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GLPatchTable *patch_table = getFVarPatchTable(face_varying_channel);
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patch_index_buffer->wrap_device_handle(
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patch_index_buffer, 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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OpenSubdiv_Buffer *patch_param_buffer)
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{
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GLPatchTable *patch_table = getFVarPatchTable(face_varying_channel);
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patch_param_buffer->wrap_device_handle(
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patch_param_buffer, 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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OpenSubdiv_Buffer *src_buffer)
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{
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GLVertexBuffer *vertex_buffer = getFVarSrcBuffer(face_varying_channel);
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src_buffer->buffer_offset = getFVarSrcBufferOffset(face_varying_channel);
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src_buffer->wrap_device_handle(src_buffer, vertex_buffer->BindVBO());
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}
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} // namespace opensubdiv
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} // namespace blender
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