72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
#include "resource.h"
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#include "arena.h"
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#include "tar.h"
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#include "incbin.h"
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#if RESOURCES_EMBEDDED
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#include "inc.h"
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/* Add resource data to binary */
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GLOBAL struct {
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struct arena arena;
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struct tar_archive archive;
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} L = { 0 } DEBUG_LVAR(L_resource);
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#endif
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void resource_startup(void)
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{
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#if RESOURCES_EMBEDDED
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struct buffer embedded_data = inc_res_tar();
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//struct buffer embedded_data = ((struct buffer) { (u8 *)(_incbin_res_tar_end) - (u8 *)(_incbin_res_tar_start), (u8 *)_incbin_res_tar_start });;
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L.arena = arena_alloc(GIGABYTE(64));
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if (embedded_data.size <= 0) {
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sys_panic(STR("No embedded resources found"));
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}
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L.archive = tar_parse(&L.arena, embedded_data, STR("res/"));
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#else
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/* Ensure we have the right working directory */
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if (!sys_is_dir(STR("res"))) {
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sys_panic(STR("Resource directory \"res\" not found"));
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}
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#endif
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}
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b32 resource_exists(struct string path)
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{
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#if RESOURCES_EMBEDDED
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struct tar_entry *entry = tar_get(&L.archive, path);
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return entry && !entry->is_dir;
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#else
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return sys_is_file(path);
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#endif
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}
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struct resource resource_open(struct string path)
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{
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#if RESOURCES_EMBEDDED
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struct tar_entry *entry = tar_get(&L.archive, path);
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return (struct resource) {
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.bytes = entry ? entry->buff : BUFFER(0, 0)
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};
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#else
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struct sys_file file = sys_file_open_read(path);
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struct sys_file_map file_map = sys_file_map_open_read(file);
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struct buffer bytes = sys_file_map_data(file_map);
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return (struct resource) {
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.bytes = bytes,
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.file = file,
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.file_map = file_map
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};
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#endif
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}
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#if !RESOURCES_EMBEDDED
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void resource_close(struct resource res)
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{
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sys_file_map_close(res.file_map);
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sys_file_close(res.file);
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}
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#endif
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