71 lines
1.7 KiB
C
71 lines
1.7 KiB
C
#ifndef RESOURCE_H
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#define RESOURCE_H
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#include "sys.h"
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#define RESOURCE_NAME_LEN_MAX 255
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/* A resource contains data that can be retrieved globally by name.
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* If enabled during compilation, resource data is embedded in the
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* executable. Otherwise each resource represents a file on disk. */
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struct resource {
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struct string _data;
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b32 _exists;
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#if RESOURCES_EMBEDDED
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struct string _name;
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#else
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struct sys_file _file;
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struct sys_file_map _file_map;
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u8 _name_text[RESOURCE_NAME_LEN_MAX];
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u8 _name_len;
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#endif
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};
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/* ========================== *
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* Startup
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* ========================== */
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struct resource_startup_receipt { i32 _; };
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struct resource_startup_receipt resource_startup(void);
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/* ========================== *
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* Open / close
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* ========================== */
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struct resource resource_open(struct string name);
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#if RESOURCES_EMBEDDED
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#define resource_close(res_ptr) (UNUSED)res_ptr
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#else
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void resource_close(struct resource *res_ptr);
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#endif
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/* ========================== *
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* Data
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* ========================== */
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#define resource_get_data(res_ptr) (res_ptr)->_data
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#define resource_exists(res_ptr) (res_ptr)->_exists
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#if RESOURCES_EMBEDDED
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#define resource_get_name(res_ptr) (res_ptr)->_name
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#else
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#define resource_get_name(res_ptr) STRING((res_ptr)->_name_len, (res_ptr)->_name_text)
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#endif
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/* ========================== *
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* Watch
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* ========================== */
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#define RESOURCE_WATCH_CALLBACK_FUNC_DEF(func_name, arg_name) void func_name(struct string arg_name)
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typedef RESOURCE_WATCH_CALLBACK_FUNC_DEF(resource_watch_callback, name);
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#if RESOURCE_RELOADING
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void resource_register_watch_callback(resource_watch_callback *callback);
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#else
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#define resource_register_watch_callback(callback)
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#endif
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#endif
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