mirror of
https://github.com/hrydgard/ppsspp.git
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102 lines
3.2 KiB
C++
102 lines
3.2 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0 or later versions.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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#include <stdio.h>
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#include <string.h>
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#include "../Globals.h"
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#include "ParamSFO.h"
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struct Header
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{
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u32 magic; /* Always PSF */
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u32 version; /* Usually 1.1 */
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u32 key_table_start; /* Start position of key_table */
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u32 data_table_start; /* Start position of data_table */
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u32 index_table_entries; /* Number of entries in index_table*/
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};
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struct IndexTable
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{
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u16 key_table_offset; /* Offset of the param_key from start of key_table */
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u16 param_fmt; /* Type of data of param_data in the data_table */
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u32 param_len; /* Used Bytes by param_data in the data_table */
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u32 param_max_len; /* Total bytes reserved for param_data in the data_table */
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u32 data_table_offset; /* Offset of the param_data from start of data_table */
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};
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void ParseDataString(const char *key, const char *utfdata, ParamSFOData *sfodata, int maxlen = 0)
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{
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std::string data;
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if (maxlen)
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data = std::string(utfdata, maxlen);
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else
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data = std::string(utfdata);
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if (!strcmp(key, "DISC_ID")) {
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sfodata->discID = data;
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} else if (!strcmp(key, "TITLE")) {
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sfodata->title = data;
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}
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}
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// I'm so sorry Ced but this is highly endian unsafe :(
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bool ParseParamSFO(const u8 *paramsfo, size_t size, ParamSFOData *data)
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{
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const Header *header = (const Header *)paramsfo;
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if (header->magic != 0x46535000)
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return false;
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if (header->version != 0x00000101)
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WARN_LOG(LOADER, "Unexpected SFO header version: %08x", header->version);
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const IndexTable *indexTables = (const IndexTable *)(paramsfo + sizeof(Header));
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const u8 *key_start = paramsfo + header->key_table_start;
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const u8 *data_start = paramsfo + header->data_table_start;
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for (u32 i = 0; i < header->index_table_entries; i++)
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{
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const char *key = (const char *)(key_start + indexTables[i].key_table_offset);
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switch (indexTables[i].param_fmt) {
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case 0x0404:
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{
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// Unsigned int
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const u32 *data = (const u32 *)(data_start + indexTables[i].data_table_offset);
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DEBUG_LOG(LOADER, "%s %08x", key, *data);
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}
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break;
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case 0x0004:
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// Special format UTF-8
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{
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const char *utfdata = (const char *)(data_start + indexTables[i].data_table_offset);
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DEBUG_LOG(LOADER, "%s %s", key, utfdata);
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ParseDataString(key, utfdata, data, indexTables[i].param_len);
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}
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break;
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case 0x0204:
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// Regular UTF-8
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{
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const char *utfdata = (const char *)(data_start + indexTables[i].data_table_offset);
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DEBUG_LOG(LOADER, "%s %s", key, utfdata);
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ParseDataString(key, utfdata, data, indexTables[i].param_len);
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}
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break;
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}
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}
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return true;
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}
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