Add Chromium-only Blender WebEngine parity work

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

@@ -0,0 +1,83 @@
+/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
+ *
+ * SPDX-License-Identifier: Apache-2.0 */
+
+#pragma once
+
+#include "kernel/svm/color_util.h"
+#include "kernel/svm/node_types.h"
+#include "kernel/svm/util.h"
+
+CCL_NAMESPACE_BEGIN
+
+/* Node */
+
+ccl_device_noinline void svm_node_mix(ccl_private float *ccl_restrict stack,
+                                      const ccl_global SVMNodeMix &ccl_restrict node)
+{
+  const float fac = stack_load(stack, node.fac);
+  const float3 c1 = stack_load(stack, node.c1);
+  const float3 c2 = stack_load(stack, node.c2);
+  const float3 result = svm_mix_clamped_factor(node.mix_type, fac, c1, c2);
+
+  stack_store_float3(stack, node.result_offset, result);
+}
+
+ccl_device_noinline void svm_node_mix_color(ccl_private float *ccl_restrict stack,
+                                            const ccl_global SVMNodeMixColor &ccl_restrict node)
+{
+  float t = stack_load(stack, node.fac);
+  if (node.use_clamp > 0) {
+    t = saturatef(t);
+  }
+  const float3 a = stack_load(stack, node.a);
+  const float3 b = stack_load(stack, node.b);
+  float3 result = svm_mix(node.blend_type, t, a, b);
+  if (node.use_clamp_result) {
+    result = saturate(result);
+  }
+  stack_store_float3(stack, node.result_offset, result);
+}
+
+ccl_device_noinline void svm_node_mix_float(ccl_private float *ccl_restrict stack,
+                                            const ccl_global SVMNodeMixFloat &ccl_restrict node)
+{
+  float t = stack_load(stack, node.fac);
+  if (node.use_clamp > 0) {
+    t = saturatef(t);
+  }
+  const float a = stack_load(stack, node.a);
+  const float b = stack_load(stack, node.b);
+  const float result = a * (1 - t) + b * t;
+
+  stack_store_float(stack, node.result_offset, result);
+}
+
+ccl_device_noinline void svm_node_mix_vector(ccl_private float *ccl_restrict stack,
+                                             const ccl_global SVMNodeMixVector &ccl_restrict node)
+{
+  float t = stack_load(stack, node.fac);
+  if (node.use_clamp > 0) {
+    t = saturatef(t);
+  }
+  const float3 a = stack_load(stack, node.a);
+  const float3 b = stack_load(stack, node.b);
+  const float3 result = a * (one_float3() - t) + b * t;
+  stack_store_float3(stack, node.result_offset, result);
+}
+
+ccl_device_noinline void svm_node_mix_vector_non_uniform(
+    ccl_private float *ccl_restrict stack,
+    const ccl_global SVMNodeMixVectorNonUniform &ccl_restrict node)
+{
+  float3 t = stack_load(stack, node.fac);
+  if (node.use_clamp > 0) {
+    t = saturate(t);
+  }
+  const float3 a = stack_load(stack, node.a);
+  const float3 b = stack_load(stack, node.b);
+  const float3 result = a * (one_float3() - t) + b * t;
+  stack_store_float3(stack, node.result_offset, result);
+}
+
+CCL_NAMESPACE_END