build: break the engine into its subsystemsv0.60

Break the source code into various subsystem directories. This allows
certain subsystems to be disabled at compile time, if needed. Move the
build system from raw Makefiles to a CMake generator. This drastically
simplifies the build and requires only editing a single file, rather
than the several make.config files in subsystem directories.

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

1 files changed, 41 insertions, 0 deletions

diff --git a/include/rune/core/alloc.h b/include/rune/core/alloc.h
new file mode 100644
index 0000000..35170d8
--- /dev/null
+++ b/include/rune/core/alloc.h
@@ -0,0 +1,41 @@
+/*
+ * 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_ALLOC_H
+#define RUNE_ALLOC_H
+
+#include <rune/util/types.h>
+#include <rune/util/list.h>
+
+struct mem_block {
+        void *ptr;
+        size_t sz;
+        int free;
+        struct list_head list;
+};
+
+RAPI void* rune_alloc(size_t sz);
+RAPI void* rune_calloc(size_t nmemb, size_t sz);
+RAPI void* rune_realloc(void *ptr, size_t sz);
+RAPI void rune_free(void *ptr);
+RAPI void rune_free_all(void);
+
+#endif