103 lines
2.5 KiB
C
103 lines
2.5 KiB
C
RES_SharedState RES_shared_state = ZI;
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////////////////////////////////
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//~ Startup
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RES_StartupReceipt RES_Startup(void)
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{
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__prof;
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RES_SharedState *g = &RES_shared_state;
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g->arena = AllocArena(Gibi(64));
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#if RESOURCES_EMBEDDED
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String embedded_data = INC_GetResTar();
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if (embedded_data.len <= 0)
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{
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P_Panic(Lit("No embedded resources found"));
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}
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g->archive = TAR_ArchiveFromString(g->arena, embedded_data, Lit(""));
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#else
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/* Ensure we have the right working directory */
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if (!P_IsDir(Lit("res")))
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{
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P_Panic(Lit("Resource directory \"res\" not found. Make sure the executable is being launched from the correct working directory."));
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}
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#endif
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return (RES_StartupReceipt) { 0 };
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}
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////////////////////////////////
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//~ Open / close
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RES_Resource RES_OpenResource(String name)
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{
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__prof;
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#if RESOURCES_EMBEDDED
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RES_SharedState *g = &RES_shared_state;
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RES_Resource result = ZI;
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TAR_Entry *entry = TAR_EntryFromName(&g->archive, name);
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result._data = entry->data;
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result._name = entry->file_name;
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result._exists = entry->valid;
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return result;
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#else
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RES_Resource result = ZI;
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if (name.len < countof(result._name_text))
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{
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u8 path_text[RES_ResourceNameLenMax + (sizeof("result/") - 1)];
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String path = ZI;
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{
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path_text[0] = 'r';
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path_text[1] = 'e';
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path_text[2] = 's';
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path_text[3] = '/';
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u64 path_text_len = 4;
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CopyBytes(path_text + path_text_len, name.text, name.len);
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path_text_len += name.len;
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path = STRING(path_text_len, path_text);
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}
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P_File file = P_OpenFileReadWait(path);
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P_FileMap file_map = ZI;
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String data = ZI;
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if (file.valid)
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{
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file_map = P_OpenFileMap(file);
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if (file_map.valid)
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{
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data = P_GetFileMapData(file_map);
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}
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else
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{
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P_CloseFileMap(file_map);
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}
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}
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else
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{
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P_CloseFIle(file);
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}
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result._exists = file.valid && file_map.valid;
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result._data = data;
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result._file = file;
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result._file_map = file_map;
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result._name_len = name.len;
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CopyBytes(result._name_text, name.text, name.len);
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}
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else
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{
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Assert(0);
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}
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return result;
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#endif
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}
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#if !RESOURCES_EMBEDDED
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void RES_CloseResource(RES_Resource *res_ptr)
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{
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P_CloseFileMap(res_ptr->_file_map);
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P_CloseFIle(res_ptr->_file);
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}
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#endif
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