93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
////////////////////////////////////////////////////////////
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//~ Bootstrap
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void BootstrapResources(u64 archive_strings_count, String *archive_strings)
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{
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Arena *perm = PermArena();
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for (u64 archive_string_index = 0; archive_string_index < archive_strings_count; ++archive_string_index)
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{
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String archive = archive_strings[archive_string_index];
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if (archive.len > 0)
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{
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BB_Buff bb = BB_BuffFromString(archive);
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BB_Reader br = BB_ReaderFromBuff(&bb);
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u64 magic = BB_ReadUBits(&br, 64);
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Assert(magic == ResourceEmbeddedMagic);
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// Create & insert entries
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u64 num_entries = BB_ReadUBits(&br, 64);
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for (u64 i = 0; i < num_entries; ++i)
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{
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u64 name_start = BB_ReadUBits(&br, 64);
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u64 name_len = BB_ReadUBits(&br, 64);
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u64 data_start = BB_ReadUBits(&br, 64);
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u64 data_len = BB_ReadUBits(&br, 64);
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ResourceEntry *entry = PushStruct(perm, ResourceEntry);
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entry->name = STRING(name_len, archive.text + name_start);
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entry->data = STRING(data_len, archive.text + data_start);
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entry->hash = HashFnv64(Fnv64Basis, entry->name);
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ResourceEntryBin *bin = &Base.resource.bins[entry->hash % countof(Base.resource.bins)];
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SllQueuePushN(bin->first, bin->last, entry, next_in_bin);
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SllQueuePushN(Base.resource.first_entry, Base.resource.last_entry, entry, next);
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}
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Base.resource.entries_count += num_entries;
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}
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}
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}
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////////////////////////////////////////////////////////////
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//~ Resource ops
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b32 IsResourceNil(ResourceKey resource)
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{
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return resource.v == 0;
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}
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ResourceKey ResourceKeyFromStore(ResourceStore *store, String name)
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{
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ResourceKey result = Zi;
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result.v = HashFnv64(store->v, name);
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return result;
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}
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ResourceEntry *ResourceEntryFromHash(u64 hash)
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{
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ResourceEntry *result = 0;
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ResourceEntryBin *bin = &Base.resource.bins[hash % countof(Base.resource.bins)];
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for (ResourceEntry *e = bin->first; e; e = e->next_in_bin)
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{
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if (e->hash == hash)
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{
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result = e;
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break;
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}
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}
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return result;
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}
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String DataFromResource(ResourceKey resource)
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{
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String result = Zi;
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ResourceEntry *entry = ResourceEntryFromHash(resource.v);
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if (entry)
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{
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result = entry->data;
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}
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return result;
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}
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String NameFromResource(ResourceKey resource)
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{
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String result = Zi;
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ResourceEntry *entry = ResourceEntryFromHash(resource.v);
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if (entry)
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{
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result = entry->name;
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}
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return result;
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}
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