Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/opensubdiv/osd/clD3D11VertexBuffer.cpp

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+//
+//   Copyright 2013 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#include "../osd/clD3D11VertexBuffer.h"
+
+#include <cassert>
+#include <D3D11.h>
+#if defined(OPENSUBDIV_HAS_CL_D3D11_H)
+#include <CL/cl_d3d11.h>
+#elif defined(OPENSUBDIV_HAS_CL_D3D11_EXT_H)
+#include <CL/cl_d3d11_ext.h>
+#else
+#error "d3d11.h or d3d11_ext.h must be found in cmake"
+#endif
+
+#include "../far/error.h"
+
+namespace OpenSubdiv {
+namespace OPENSUBDIV_VERSION {
+
+namespace Osd {
+
+#if defined(OPENSUBDIV_HAS_CL_D3D11_H)
+typedef clCreateFromD3D11BufferKHR_fn clCreateFromD3D11Buffer_fn;
+typedef clEnqueueAcquireD3D11ObjectsKHR_fn clEnqueueAcquireD3D11Objects_fn;
+typedef clEnqueueReleaseD3D11ObjectsKHR_fn clEnqueueReleaseD3D11Objects_fn;
+#else
+typedef clCreateFromD3D11BufferNV_fn clCreateFromD3D11Buffer_fn;
+typedef clEnqueueAcquireD3D11ObjectsNV_fn clEnqueueAcquireD3D11Objects_fn;
+typedef clEnqueueReleaseD3D11ObjectsNV_fn clEnqueueReleaseD3D11Objects_fn;
+#endif
+
+static clCreateFromD3D11Buffer_fn clCreateFromD3D11Buffer = NULL;
+static clEnqueueAcquireD3D11Objects_fn clEnqueueAcquireD3D11Objects = NULL;
+static clEnqueueReleaseD3D11Objects_fn clEnqueueReleaseD3D11Objects = NULL;
+
+// XXX: clGetExtensionFunctionAddress is marked as deprecated and
+//      clGetExtensionFunctionAddressForPlatform should be used,
+//      however it requires OpenCL 1.2.
+//      until we bump the requirement to 1.2, mute the deprecated warning.
+#if defined(_MSC_VER)
+#pragma warning(disable: 4996)
+#endif
+
+
+static void resolveInteropFunctions() {
+
+    if (! clCreateFromD3D11Buffer) {
+        clCreateFromD3D11Buffer =
+            (clCreateFromD3D11Buffer_fn)
+            clGetExtensionFunctionAddress("clCreateFromD3D11BufferKHR");
+    }
+    if (! clCreateFromD3D11Buffer) {
+        clCreateFromD3D11Buffer =
+            (clCreateFromD3D11Buffer_fn)
+            clGetExtensionFunctionAddress("clCreateFromD3D11BufferNV");
+    }
+
+    if (! clEnqueueAcquireD3D11Objects) {
+        clEnqueueAcquireD3D11Objects = (clEnqueueAcquireD3D11Objects_fn)
+            clGetExtensionFunctionAddress("clEnqueueAcquireD3D11ObjectsKHR");
+    }
+    if (! clEnqueueAcquireD3D11Objects) {
+        clEnqueueAcquireD3D11Objects = (clEnqueueAcquireD3D11Objects_fn)
+            clGetExtensionFunctionAddress("clEnqueueAcquireD3D11ObjectsNV");
+    }
+
+    if (! clEnqueueReleaseD3D11Objects) {
+        clEnqueueReleaseD3D11Objects = (clEnqueueReleaseD3D11Objects_fn)
+            clGetExtensionFunctionAddress("clEnqueueReleaseD3D11ObjectsKHR");
+    }
+    if (! clEnqueueReleaseD3D11Objects) {
+        clEnqueueReleaseD3D11Objects = (clEnqueueReleaseD3D11Objects_fn)
+            clGetExtensionFunctionAddress("clEnqueueReleaseD3D11ObjectsNV");
+    }
+}
+
+CLD3D11VertexBuffer::CLD3D11VertexBuffer(int numElements, int numVertices)
+    : _numElements(numElements), _numVertices(numVertices),
+      _d3d11Buffer(NULL), _clMemory(NULL), _clQueue(NULL), _clMapped(false) {
+}
+
+CLD3D11VertexBuffer::~CLD3D11VertexBuffer() {
+
+    unmap();
+    clReleaseMemObject(_clMemory);
+    _d3d11Buffer->Release();
+}
+
+CLD3D11VertexBuffer *
+CLD3D11VertexBuffer::Create(int numElements, int numVertices,
+                            cl_context clContext,
+                            ID3D11DeviceContext *deviceContext) {
+    CLD3D11VertexBuffer *instance =
+        new CLD3D11VertexBuffer(numElements, numVertices);
+
+    ID3D11Device *device;
+    deviceContext->GetDevice(&device);
+
+    if (instance->allocate(clContext, device)) return instance;
+    delete instance;
+    return NULL;
+}
+
+void
+CLD3D11VertexBuffer::UpdateData(const float *src, int startVertex,
+                                int numVertices, cl_command_queue queue) {
+
+    size_t size = numVertices * _numElements * sizeof(float);
+    size_t offset = startVertex * _numElements * sizeof(float);
+
+    map(queue);
+    clEnqueueWriteBuffer(queue, _clMemory, true, offset, size, src, 0, NULL, NULL);
+}
+
+int
+CLD3D11VertexBuffer::GetNumElements() const {
+
+    return _numElements;
+}
+
+int
+CLD3D11VertexBuffer::GetNumVertices() const {
+
+    return _numVertices;
+}
+
+cl_mem
+CLD3D11VertexBuffer::BindCLBuffer(cl_command_queue queue) {
+
+    map(queue);
+    return _clMemory;
+}
+
+ID3D11Buffer *
+CLD3D11VertexBuffer::BindD3D11Buffer(ID3D11DeviceContext *deviceContext) {
+
+    unmap();
+    return _d3d11Buffer;
+}
+
+bool
+CLD3D11VertexBuffer::allocate(cl_context clContext, ID3D11Device *device) {
+
+    D3D11_BUFFER_DESC hBufferDesc;
+    hBufferDesc.ByteWidth           = _numElements * _numVertices * sizeof(float);
+    hBufferDesc.Usage               = D3D11_USAGE_DYNAMIC;
+    hBufferDesc.BindFlags           = D3D11_BIND_VERTEX_BUFFER | D3D11_BIND_SHADER_RESOURCE;
+    hBufferDesc.CPUAccessFlags      = D3D11_CPU_ACCESS_WRITE;
+    hBufferDesc.MiscFlags           = 0;
+    hBufferDesc.StructureByteStride = sizeof(float);
+
+    HRESULT hr;
+    hr = device->CreateBuffer(&hBufferDesc, NULL, &_d3d11Buffer);
+    if (FAILED(hr)) {
+        Far::Error(Far::FAR_RUNTIME_ERROR, "Fail in CreateBuffer\n");
+        return false;
+    }
+
+    if (! clCreateFromD3D11Buffer) {
+        resolveInteropFunctions();
+        if (! clCreateFromD3D11Buffer) {
+            return false;
+        }
+    }
+
+    // register d3d11buffer as cl memory
+    cl_int err;
+
+    _clMemory = clCreateFromD3D11Buffer(clContext, CL_MEM_READ_WRITE, _d3d11Buffer, &err);
+
+    if (err != CL_SUCCESS) return false;
+    return true;
+}
+
+void
+CLD3D11VertexBuffer::map(cl_command_queue queue) {
+
+    if (_clMapped) return;
+    _clQueue = queue;
+
+    if (! clEnqueueAcquireD3D11Objects) {
+        resolveInteropFunctions();
+        if (! clEnqueueAcquireD3D11Objects) {
+            return;
+        }
+    }
+
+    clEnqueueAcquireD3D11Objects(queue, 1, &_clMemory, 0, 0, 0);
+    _clMapped = true;
+}
+
+void
+CLD3D11VertexBuffer::unmap() {
+
+    if (! _clMapped) return;
+    if (! clEnqueueReleaseD3D11Objects) {
+        resolveInteropFunctions();
+        if (! clEnqueueReleaseD3D11Objects) {
+            return;
+        }
+    }
+    clEnqueueReleaseD3D11Objects(_clQueue, 1, &_clMemory, 0, 0, 0);
+    _clMapped = false;
+}
+
+
+}  // end namespace Osd
+
+}  // end namespace OPENSUBDIV_VERSION
+}  // end namespace OpenSubdiv
+