Add Chromium-only Blender WebEngine parity work

blender-5.2.0/extern/opensubdiv-source/opensubdiv/osd/cpuKernel.h

@@ -0,0 +1,133 @@
+//
+//   Copyright 2013 Pixar
+//
+//   Licensed under the terms set forth in the LICENSE.txt file available at
+//   https://opensubdiv.org/license.
+//
+
+#ifndef OPENSUBDIV3_OSD_CPU_KERNEL_H
+#define OPENSUBDIV3_OSD_CPU_KERNEL_H
+
+#include "../version.h"
+#include <cstring>
+
+namespace OpenSubdiv {
+namespace OPENSUBDIV_VERSION {
+
+namespace Osd {
+
+struct BufferDescriptor;
+
+void
+CpuEvalStencils(float const * src, BufferDescriptor const &srcDesc,
+                float * dst,       BufferDescriptor const &dstDesc,
+                int const * sizes,
+                int const * offsets,
+                int const * indices,
+                float const * weights,
+                int start, int end);
+
+void
+CpuEvalStencils(float const * src, BufferDescriptor const &srcDesc,
+                float * dst,       BufferDescriptor const &dstDesc,
+                float * dstDu,     BufferDescriptor const &dstDuDesc,
+                float * dstDv,     BufferDescriptor const &dstDvDesc,
+                int const * sizes,
+                int const * offsets,
+                int const * indices,
+                float const * weights,
+                float const * duWeights,
+                float const * dvWeights,
+                int start, int end);
+
+void
+CpuEvalStencils(float const * src, BufferDescriptor const &srcDesc,
+                float * dst,       BufferDescriptor const &dstDesc,
+                float * dstDu,     BufferDescriptor const &dstDuDesc,
+                float * dstDv,     BufferDescriptor const &dstDvDesc,
+                float * dstDuu,    BufferDescriptor const &dstDuuDesc,
+                float * dstDuv,    BufferDescriptor const &dstDuvDesc,
+                float * dstDvv,    BufferDescriptor const &dstDvvDesc,
+                int const * sizes,
+                int const * offsets,
+                int const * indices,
+                float const * weights,
+                float const * duWeights,
+                float const * dvWeights,
+                float const * duuWeights,
+                float const * duvWeights,
+                float const * dvvWeights,
+                int start, int end);
+
+//
+// SIMD ICC optimization of the stencil kernel
+//
+
+#if defined ( __INTEL_COMPILER ) || defined ( __ICC )
+    #define __ALIGN_DATA __declspec(align(32))
+#else
+    #define __ALIGN_DATA
+#endif
+
+// Note : this function is re-used in the TBB Compute kernel
+template <int numElems> void
+ComputeStencilKernel(float const * vertexSrc,
+                     float * vertexDst,
+                     int const * sizes,
+                     int const * indices,
+                     float const * weights,
+                     int start,
+                     int end) {
+
+    __ALIGN_DATA float result[numElems],
+                       result1[numElems];
+
+    float const * src;
+    float * dst, weight;
+
+    for (int i=start; i<end; ++i) {
+
+        // Clear
+#if defined ( __INTEL_COMPILER ) || defined ( __ICC )
+    #pragma simd
+    #pragma vector aligned
+#endif
+        for (int k = 0; k<numElems; ++k)
+            result[k] = 0.0f;
+
+        for (int j=0; j<sizes[i]; ++j, ++indices, ++weights) {
+
+            src = vertexSrc + (*indices)*numElems;
+            weight = *weights;
+
+            // AddWithWeight
+#if defined ( __INTEL_COMPILER ) || defined ( __ICC )
+    #pragma simd
+    #pragma vector aligned
+#endif
+            for (int k=0; k<numElems; ++k) {
+                result[k] += src[k] * weight;
+            }
+        }
+
+#if defined ( __INTEL_COMPILER ) || defined ( __ICC )
+    #pragma simd
+    #pragma vector aligned
+#endif
+        for (int k=0; k<numElems; ++k) {
+            result1[k] = result[k];
+        }
+
+        dst = vertexDst + i*numElems;
+        memcpy(dst, result1, numElems*sizeof(float));
+    }
+}
+
+}  // end namespace Osd
+
+}  // end namespace OPENSUBDIV_VERSION
+using namespace OPENSUBDIV_VERSION;
+
+}  // end namespace OpenSubdiv
+
+#endif  // OPENSUBDIV3_OSD_CPU_KERNEL_H