Add Chromium-only Blender WebEngine parity work

blender-5.2.0/intern/cycles/kernel/svm/math.h

@@ -0,0 +1,47 @@
+/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
+ *
+ * SPDX-License-Identifier: Apache-2.0 */
+
+#pragma once
+
+#include "kernel/svm/math_util.h"
+#include "kernel/svm/node_types.h"
+#include "kernel/svm/util.h"
+
+CCL_NAMESPACE_BEGIN
+
+ccl_device_noinline void svm_node_math(ccl_private float *ccl_restrict stack,
+                                       const ccl_global SVMNodeMath &ccl_restrict node)
+{
+  const float a = stack_load(stack, node.value1);
+  const float b = stack_load(stack, node.value2);
+  const float c = stack_load(stack, node.value3);
+  const float result = svm_math(node.math_type, a, b, c);
+
+  stack_store_float(stack, node.result_offset, result);
+}
+
+template<typename Float3Type>
+ccl_device_noinline void svm_node_vector_math(
+    ccl_private float *ccl_restrict stack, const ccl_global SVMNodeVectorMath &ccl_restrict node)
+{
+  using FloatType = dual_scalar_t<Float3Type>;
+
+  const Float3Type a = stack_load<Float3Type>(stack, node.a);
+  const Float3Type b = stack_load<Float3Type>(stack, node.b);
+  const Float3Type c = stack_load<Float3Type>(stack, node.c);
+  const FloatType param1 = stack_load<FloatType>(stack, node.param1);
+
+  FloatType value = make_zero<FloatType>();
+  Float3Type vector = make_zero<Float3Type>();
+  svm_vector_math(&value, &vector, node.math_type, a, b, c, param1);
+
+  if (stack_valid(node.value_offset)) {
+    stack_store(stack, node.value_offset, value);
+  }
+  if (stack_valid(node.vector_offset)) {
+    stack_store(stack, node.vector_offset, vector);
+  }
+}
+
+CCL_NAMESPACE_END