Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/opensubdiv/osd/cudaPatchTable.cpp

@@ -0,0 +1,152 @@
+//
+//   Copyright 2015 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#include "../osd/cudaPatchTable.h"
+
+#include <cuda_runtime.h>
+
+#include "../far/patchTable.h"
+#include "../osd/cpuPatchTable.h"
+
+namespace OpenSubdiv {
+namespace OPENSUBDIV_VERSION {
+
+namespace Osd {
+
+CudaPatchTable::CudaPatchTable() :
+    _patchArrays(NULL), _indexBuffer(NULL), _patchParamBuffer(NULL),
+    _varyingPatchArrays(NULL), _varyingIndexBuffer(NULL) {
+}
+
+CudaPatchTable::~CudaPatchTable() {
+    if (_patchArrays) cudaFree(_patchArrays);
+    if (_indexBuffer) cudaFree(_indexBuffer);
+    if (_patchParamBuffer) cudaFree(_patchParamBuffer);
+    if (_varyingPatchArrays) cudaFree(_varyingPatchArrays);
+    if (_varyingIndexBuffer) cudaFree(_varyingIndexBuffer);
+    for (int fvc=0; fvc<(int)_fvarPatchArrays.size(); ++fvc) {
+        if (_fvarPatchArrays[fvc]) cudaFree(_fvarPatchArrays[fvc]);
+    }
+    for (int fvc=0; fvc<(int)_fvarIndexBuffers.size(); ++fvc) {
+        if (_fvarIndexBuffers[fvc]) cudaFree(_fvarIndexBuffers[fvc]);
+    }
+    for (int fvc=0; fvc<(int)_fvarParamBuffers.size(); ++fvc) {
+        if (_fvarParamBuffers[fvc]) cudaFree(_fvarParamBuffers[fvc]);
+    }
+}
+
+CudaPatchTable *
+CudaPatchTable::Create(Far::PatchTable const *farPatchTable,
+                       void * /*deviceContext*/) {
+    CudaPatchTable *instance = new CudaPatchTable();
+    if (instance->allocate(farPatchTable)) return instance;
+    delete instance;
+    return 0;
+}
+
+bool
+CudaPatchTable::allocate(Far::PatchTable const *farPatchTable) {
+    CpuPatchTable patchTable(farPatchTable);
+
+    size_t numPatchArrays = patchTable.GetNumPatchArrays();
+    size_t indexSize = patchTable.GetPatchIndexSize();
+    size_t patchParamSize = patchTable.GetPatchParamSize();
+
+    cudaError_t err;
+    err = cudaMalloc(&_patchArrays, numPatchArrays * sizeof(Osd::PatchArray));
+    if (err != cudaSuccess) return false;
+
+    err = cudaMalloc(&_indexBuffer, indexSize * sizeof(int));
+    if (err != cudaSuccess) return false;
+
+    err = cudaMalloc(&_patchParamBuffer, patchParamSize * sizeof(Osd::PatchParam));
+    if (err != cudaSuccess) return false;
+
+    err = cudaMalloc(&_varyingPatchArrays, numPatchArrays * sizeof(Osd::PatchArray));
+    if (err != cudaSuccess) return false;
+
+    size_t varyingIndexSize = patchTable.GetVaryingPatchIndexSize();
+    err = cudaMalloc(&_varyingIndexBuffer, varyingIndexSize * sizeof(int));
+    if (err != cudaSuccess) return false;
+
+    size_t numFVarChannels = patchTable.GetNumFVarChannels();
+    _fvarPatchArrays.resize(numFVarChannels, 0);
+    _fvarIndexBuffers.resize(numFVarChannels, 0);
+    _fvarParamBuffers.resize(numFVarChannels, 0);
+    for (int fvc=0; fvc<(int)numFVarChannels; ++fvc) {
+        err = cudaMalloc(&_fvarPatchArrays[fvc], numPatchArrays * sizeof(Osd::PatchArray));
+        if (err != cudaSuccess) return false;
+
+        err = cudaMemcpy(_fvarPatchArrays[fvc],
+                         patchTable.GetFVarPatchArrayBuffer(fvc),
+                         numPatchArrays * sizeof(Osd::PatchArray),
+                         cudaMemcpyHostToDevice);
+        if (err != cudaSuccess) return false;
+
+        size_t fvarIndexSize = patchTable.GetFVarPatchIndexSize(fvc);
+        err = cudaMalloc(&_fvarIndexBuffers[fvc], fvarIndexSize * sizeof(int));
+        if (err != cudaSuccess) return false;
+
+        err = cudaMemcpy(_fvarIndexBuffers[fvc],
+                         patchTable.GetFVarPatchIndexBuffer(fvc),
+                         fvarIndexSize * sizeof(int),
+                         cudaMemcpyHostToDevice);
+        if (err != cudaSuccess) return false;
+
+        size_t fvarParamSize = patchTable.GetFVarPatchParamSize(fvc);
+        err = cudaMalloc(&_fvarParamBuffers[fvc], fvarParamSize * sizeof(Osd::PatchParam));
+        if (err != cudaSuccess) return false;
+
+        err = cudaMemcpy(_fvarParamBuffers[fvc],
+                         patchTable.GetFVarPatchParamBuffer(fvc),
+                         patchParamSize * sizeof(PatchParam),
+                         cudaMemcpyHostToDevice);
+        if (err != cudaSuccess) return false;
+    }
+
+    // copy patch array
+    err = cudaMemcpy(_patchArrays,
+                     patchTable.GetPatchArrayBuffer(),
+                     numPatchArrays * sizeof(Osd::PatchArray),
+                     cudaMemcpyHostToDevice);
+    if (err != cudaSuccess) return false;
+
+    // copy index buffer
+    err = cudaMemcpy(_indexBuffer,
+                     patchTable.GetPatchIndexBuffer(),
+                     indexSize * sizeof(int),
+                     cudaMemcpyHostToDevice);
+    if (err != cudaSuccess) return false;
+
+    // patch param buffer
+    err = cudaMemcpy(_patchParamBuffer,
+                     patchTable.GetPatchParamBuffer(),
+                     patchParamSize * sizeof(Osd::PatchParam),
+                     cudaMemcpyHostToDevice);
+    if (err != cudaSuccess) return false;
+
+    // copy varying patch arrays and index buffer
+    err = cudaMemcpy(_varyingPatchArrays,
+                     patchTable.GetVaryingPatchArrayBuffer(),
+                     numPatchArrays * sizeof(Osd::PatchArray),
+                     cudaMemcpyHostToDevice);
+    if (err != cudaSuccess) return false;
+    err = cudaMemcpy(_varyingIndexBuffer,
+                     patchTable.GetVaryingPatchIndexBuffer(),
+                     varyingIndexSize * sizeof(int),
+                     cudaMemcpyHostToDevice);
+    if (err != cudaSuccess) return false;
+
+    return true;
+}
+
+
+}  // end namespace Osd
+
+}  // end namespace OPENSUBDIV_VERSION
+}  // end namespace OpenSubdiv
+