Renamed 'Typedef.h' to 'PlatformDefinitions.h'.

include/PolyVox/Impl/PlatformDefinitions.h

@@ -0,0 +1,98 @@
+/*******************************************************************************
+Copyright (c) 2005-2009 David Williams
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+    1. The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+
+    2. Altered source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+
+    3. This notice may not be removed or altered from any source
+    distribution. 	
+*******************************************************************************/
+
+/**
+ * This file contains definitions for various macros, etc, which need to be different
+ * for each platform. It helps keep per-platform logic outside the rest of PolyVox.
+ */
+#ifndef __PolyVox_PlatformDefinitions_H__
+#define __PolyVox_PlatformDefinitions_H__
+
+#if defined(_MSC_VER) && (_MSC_VER < 1800)
+#error "Your version of Visual Studio is too old to build PolyVox. You need at least version Visual Stusio 2013"
+#endif
+
+//Definitions needed to make library functions accessable
+// See http://gcc.gnu.org/wiki/Visibility for more info.
+#if defined _WIN32 || defined __CYGWIN__
+  #define POLYVOX_HELPER_IMPORT __declspec(dllimport)
+  #define POLYVOX_HELPER_EXPORT __declspec(dllexport)
+  #define POLYVOX_HELPER_LOCAL
+  #define POLYVOX_DEPRECATED __declspec(deprecated)
+#else
+  #define POLYVOX_DEPRECATED __attribute__((deprecated))
+  #if __GNUC__ >= 4
+    #define POLYVOX_HELPER_IMPORT __attribute__ ((visibility("default")))
+    #define POLYVOX_HELPER_EXPORT __attribute__ ((visibility("default")))
+    #define POLYVOX_HELPER_LOCAL  __attribute__ ((visibility("hidden")))
+  #else
+    #define POLYVOX_HELPER_IMPORT
+    #define POLYVOX_HELPER_EXPORT
+    #define POLYVOX_HELPER_LOCAL
+  #endif
+#endif
+
+#if defined SWIG
+  //Do nothing in this case
+#else
+  #undef POLYVOX_DEPRECATED
+  #define POLYVOX_DEPRECATED //Define it to nothing to avoid warnings
+#endif
+
+// Now we use the generic helper definitions above to define POLYVOX_API and POLYVOX_LOCAL.
+// POLYVOX_API is used for the public API symbols. It either imports or exports (or does nothing for static build)
+// POLYVOX_LOCAL is used for non-api symbols.
+
+#ifdef POLYVOX_SHARED // defined if PolyVox is compiled as a shared library
+  #ifdef POLYVOX_SHARED_EXPORTS // defined if we are building the PolyVox shared library (instead of using it)
+    #define POLYVOX_API POLYVOX_HELPER_EXPORT
+  #else
+    #define POLYVOX_API POLYVOX_HELPER_IMPORT
+  #endif // POLYVOX_SHARED_EXPORTS
+  #define POLYVOX_LOCAL POLYVOX_HELPER_LOCAL
+#else // POLYVOX_SHARED is not defined: this means PolyVox is a static library.
+  #define POLYVOX_API
+  #define POLYVOX_LOCAL
+#endif // POLYVOX_SHARED
+
+#if defined(_MSC_VER)
+	// In Visual Studio we can use this function to go into the debugger.
+	#define POLYVOX_HALT() __debugbreak()
+#else
+	// On other platforms we just halt by forcing a crash.
+	// Hopefully this puts us in the debugger if one is running
+	#if defined(__linux__) || defined(__APPLE__)
+		#define POLYVOX_HALT() raise(SIGTRAP)
+	#else
+		#define POLYVOX_HALT() *((unsigned int*)0) = 0xDEAD
+	#endif
+#endif
+
+// Used to prevent the compiler complaining about unused varuables, particularly useful when
+// e.g. asserts are disabled and the parameter it was checking isn't used anywhere else.
+// Note that this implementation doesn't seem to work everywhere, for some reason I have
+// seen it give compile errors when combined with variadic template functions (to be confirmed)?
+// Implementation from here: http://stackoverflow.com/a/4851173/2337254
+#define POLYVOX_UNUSED(x) do { (void)sizeof(x); } while(0)
+
+#endif //__PolyVox_PlatformDefinitions_H__