Makefile: retool the build systemv0.55

Retool the build system to be more modular and more flexible. Move all
subsystems into separate directories and create make.config files that
will conditionally compile based on information from the root Makefile.

Signed-off-by: Danny Holman <dholman@gymli.org>

1 files changed, 54 insertions, 0 deletions

diff --git a/include/rune/util.h b/include/rune/util.h
new file mode 100644
index 0000000..04429c4
--- /dev/null
+++ b/include/rune/util.h
@@ -0,0 +1,54 @@
+/*
+ * Rune Game Engine
+ * Copyright 2024 Danny Holman <dholman@gymli.org>
+ *
+ * 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.
+ */
+
+#ifndef RUNE_UTIL_H
+#define RUNE_UTIL_H
+
+#include <assert.h>
+#include <stdint.h>
+
+#if defined(__clang__) || defined(__gcc__)
+        #define STATIC_ASSERT _Static_assert
+#else
+        #define STATIC_ASSERT static_assert
+#endif
+
+
+#ifdef REXPORT
+        #ifdef _MSC_VER
+                #define RAPI __declspec(dllexport)
+        #else
+                #define RAPI __attribute__((visibility("default")))
+        #endif
+#else
+        #ifdef _MSC_VER
+                #define RAPI __declspec(dllexport)
+        #else
+                #define RAPI
+        #endif
+#endif
+
+static inline uint32_t clamp(uint32_t value, float min, float max) {
+        const uint32_t ret = value < min ? min : value;
+        return ret > max ? max : ret;
+}
+
+#endif