cleanup and refactoring

raytracer/nvpro_core/nvp/platform.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2014-2021, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2014-2021 NVIDIA CORPORATION
+ * SPDX-License-Identifier: Apache-2.0
+ */
+/// @DOC_SKIP
+
+#include "NvFoundation.h"
+
+#ifndef NVP_PLATFORM_H__
+#define NVP_PLATFORM_H__
+
+
+#if defined(__GNUC__) && (__GNUC__ > 3 || (__GNUC__ >= 3 && __GNUC_MINOR__ >= 4))
+
+  #define NV_NOOP(...)
+  #define NV_BARRIER()       __sync_synchronize()
+
+/*
+// maybe better than __sync_synchronize?
+#if defined(__i386__ ) || defined(__x64__)
+#define NVP_BARRIER()  __asm__ __volatile__ ("mfence" ::: "memory")
+#endif
+
+#if defined(__arm__)
+#define NVP_BARRIER() __asm__ __volatile__ ("dmb" :::"memory")
+#endif
+*/
+  
+#elif defined(__MSC__) || defined(_MSC_VER)
+
+  #include <emmintrin.h>
+
+  #pragma warning(disable:4142) // redefinition of same type
+  #if (_MSC_VER >= 1400)      // VC8+
+    #pragma warning(disable : 4996)    // Either disable all deprecation warnings,
+  #endif   // VC8+
+
+  #define NV_NOOP            __noop
+  #define NV_BARRIER()       _mm_mfence()
+
+#else
+  #error "compiler unkown"
+#endif
+
+#endif