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Use C++11 isms new in G++ 4.6.
[lsnes.git] / generic / rom.cpp
blob30d41672ef94eee4856e850004b6c3e3048c127c
1 #include "lsnes.hpp"
2 #include <snes/snes.hpp>
3 using SNES::config;
4 using SNES::System;
5 using SNES::Cartridge;
6 using SNES::Interface;
7 using SNES::cartridge;
8
9 #include <boost/iostreams/categories.hpp>
10 #include <boost/iostreams/copy.hpp>
11 #include <boost/iostreams/stream.hpp>
12 #include <boost/iostreams/stream_buffer.hpp>
13 #include <boost/iostreams/filter/symmetric.hpp>
14 #include <boost/iostreams/filter/zlib.hpp>
15 #include <boost/iostreams/filtering_stream.hpp>
16 #include <boost/iostreams/device/back_inserter.hpp>
17 #include "rom.hpp"
18 #include "command.hpp"
19 #include "zip.hpp"
20 #include "misc.hpp"
21 #include "memorymanip.hpp"
22 #include <stdexcept>
23 #include <sstream>
24 #include <iomanip>
25 #include <cstdint>
26 #include <set>
27 typedef uint8_t uint8;
28 typedef uint16_t uint16;
29 typedef uint32_t uint32;
30 typedef int8_t int8;
31 typedef int16_t int16;
32 typedef int32_t int32;
33 #include <nall/platform.hpp>
34 #include <nall/endian.hpp>
35 #include <nall/varint.hpp>
36 #include <nall/bit.hpp>
37 #include <nall/serializer.hpp>
38 #include <nall/property.hpp>
39 using namespace nall;
40 #include <ui-libsnes/libsnes.hpp>
41
42 //Some anti-typo defs.
43 #define SNES_TYPE "snes"
44 #define SNES_PAL "snes_pal"
45 #define SNES_NTSC "snes_ntsc"
46 #define BSX "bsx"
47 #define BSXSLOTTED "bsxslotted"
48 #define SUFAMITURBO "sufamiturbo"
49 #define SGB_TYPE "SGB"
50 #define SGB_PAL "sgb_pal"
51 #define SGB_NTSC "sgb_ntsc"
52
53 void strip_CR(std::string& x);
54
55 std::string gtype::tostring(rom_type rtype, rom_region region) throw(std::bad_alloc, std::runtime_error)
56 {
57 switch(rtype) {
58 case ROMTYPE_SNES:
59 switch(region) {
60 case REGION_AUTO: return "snes";
61 case REGION_NTSC: return "snes_ntsc";
62 case REGION_PAL: return "snes_pal";
63 };
64 case ROMTYPE_SGB:
65 switch(region) {
66 case REGION_AUTO: return "sgb";
67 case REGION_NTSC: return "sgb_ntsc";
68 case REGION_PAL: return "sgb_pal";
69 };
70 case ROMTYPE_BSX: return "bsx";
71 case ROMTYPE_BSXSLOTTED: return "bsxslotted";
72 case ROMTYPE_SUFAMITURBO: return "sufamiturbo";
73 default: throw std::runtime_error("tostring: ROMTYPE_NONE");
74 };
75 }
76
77 std::string gtype::tostring(gametype_t gametype) throw(std::bad_alloc, std::runtime_error)
78 {
79 switch(gametype) {
80 case GT_SNES_NTSC: return "snes_ntsc";
81 case GT_SNES_PAL: return "snes_pal";
82 case GT_SGB_NTSC: return "sgb_ntsc";
83 case GT_SGB_PAL: return "sgb_pal";
84 case GT_BSX: return "bsx";
85 case GT_BSX_SLOTTED: return "bsxslotted";
86 case GT_SUFAMITURBO: return "sufamiturbo";
87 default: throw std::runtime_error("tostring: GT_INVALID");
88 };
89 }
90
91 gametype_t gtype::togametype(rom_type rtype, rom_region region) throw(std::bad_alloc, std::runtime_error)
92 {
93 switch(rtype) {
94 case ROMTYPE_SNES:
95 switch(region) {
96 case REGION_AUTO: return GT_SGB_NTSC;
97 case REGION_NTSC: return GT_SNES_NTSC;
98 case REGION_PAL: return GT_SNES_PAL;
99 };
100 case ROMTYPE_SGB:
101 switch(region) {
102 case REGION_AUTO: return GT_SGB_NTSC;
103 case REGION_NTSC: return GT_SGB_NTSC;
104 case REGION_PAL: return GT_SGB_PAL;
105 };
106 case ROMTYPE_BSX: return GT_BSX;
107 case ROMTYPE_BSXSLOTTED: return GT_BSX_SLOTTED;
108 case ROMTYPE_SUFAMITURBO: return GT_SUFAMITURBO;
109 default: throw std::runtime_error("togametype: ROMTYPE_NONE");
110 };
111 }
112
113 gametype_t gtype::togametype(const std::string& gametype) throw(std::bad_alloc, std::runtime_error)
114 {
115 if(gametype == "snes_ntsc")
116 return GT_SNES_NTSC;
117 if(gametype == "snes_pal")
118 return GT_SNES_PAL;
119 if(gametype == "sgb_ntsc")
120 return GT_SGB_NTSC;
121 if(gametype == "sgb_pal")
122 return GT_SGB_PAL;
123 if(gametype == "bsx")
124 return GT_BSX;
125 if(gametype == "bsxslotted")
126 return GT_BSX_SLOTTED;
127 if(gametype == "sufamiturbo")
128 return GT_SUFAMITURBO;
129 throw std::runtime_error("Unknown game type '" + gametype + "'");
130 }
131
132 rom_type gtype::toromtype(const std::string& gametype) throw(std::bad_alloc, std::runtime_error)
133 {
134 if(gametype == "snes_ntsc")
135 return ROMTYPE_SNES;
136 if(gametype == "snes_pal")
137 return ROMTYPE_SNES;
138 if(gametype == "snes")
139 return ROMTYPE_SNES;
140 if(gametype == "sgb_ntsc")
141 return ROMTYPE_SGB;
142 if(gametype == "sgb_pal")
143 return ROMTYPE_SGB;
144 if(gametype == "sgb")
145 return ROMTYPE_SGB;
146 if(gametype == "bsx")
147 return ROMTYPE_BSX;
148 if(gametype == "bsxslotted")
149 return ROMTYPE_BSXSLOTTED;
150 if(gametype == "sufamiturbo")
151 return ROMTYPE_SUFAMITURBO;
152 throw std::runtime_error("Unknown game type '" + gametype + "'");
153 }
154
155 rom_type gtype::toromtype(gametype_t gametype) throw()
156 {
157 switch(gametype) {
158 case GT_SNES_NTSC: return ROMTYPE_SNES;
159 case GT_SNES_PAL: return ROMTYPE_SNES;
160 case GT_SGB_NTSC: return ROMTYPE_SGB;
161 case GT_SGB_PAL: return ROMTYPE_SGB;
162 case GT_BSX: return ROMTYPE_BSX;
163 case GT_BSX_SLOTTED: return ROMTYPE_BSXSLOTTED;
164 case GT_SUFAMITURBO: return ROMTYPE_SUFAMITURBO;
165 case GT_INVALID: throw std::runtime_error("toromtype: GT_INVALID");
166 };
167 }
168
169 rom_region gtype::toromregion(const std::string& gametype) throw(std::bad_alloc, std::runtime_error)
170 {
171 if(gametype == "snes_ntsc")
172 return REGION_NTSC;
173 if(gametype == "snes_pal")
174 return REGION_PAL;
175 if(gametype == "snes")
176 return REGION_AUTO;
177 if(gametype == "sgb_ntsc")
178 return REGION_NTSC;
179 if(gametype == "sgb_pal")
180 return REGION_PAL;
181 if(gametype == "sgb")
182 return REGION_AUTO;
183 if(gametype == "bsx")
184 return REGION_NTSC;
185 if(gametype == "bsxslotted")
186 return REGION_NTSC;
187 if(gametype == "sufamiturbo")
188 return REGION_NTSC;
189 throw std::runtime_error("Unknown game type '" + gametype + "'");
190 }
191
192 rom_region gtype::toromregion(gametype_t gametype) throw()
193 {
194 switch(gametype) {
195 case GT_SNES_NTSC: return REGION_NTSC;
196 case GT_SNES_PAL: return REGION_PAL;
197 case GT_SGB_NTSC: return REGION_NTSC;
198 case GT_SGB_PAL: return REGION_PAL;
199 case GT_BSX: return REGION_NTSC;
200 case GT_BSX_SLOTTED: return REGION_NTSC;
201 case GT_SUFAMITURBO: return REGION_NTSC;
202 case GT_INVALID: throw std::runtime_error("toromregion: GT_INVALID");
203 };
204 }
205
206
207 namespace
208 {
209 bool option_set(const std::vector<std::string>& cmdline, const std::string& option)
210 {
211 for(auto i : cmdline)
212 if(i == option)
213 return true;
214 return false;
215 }
216
217 const char* romtypes_to_recognize[] = {
218 "rom", "bsx", "bsxslotted", "dmg", "slot-a", "slot-b",
219 "rom-xml", "bsx-xml", "bsxslotted-xml", "dmg-xml", "slot-a-xml", "slot-b-xml"
220 };
221
222 enum rom_type current_rom_type = ROMTYPE_NONE;
223 enum rom_region current_region = REGION_NTSC;
224
225 uint64_t readval(const std::vector<char>& patch, size_t offset, size_t vsize) throw(std::runtime_error)
226 {
227 if(offset >= patch.size() || offset + vsize > patch.size())
228 throw std::runtime_error("IPS file corrupt");
229 uint64_t val = 0;
230 for(size_t i = 0; i < vsize; i++)
231 val = (val << 8) | static_cast<uint8_t>(patch[offset + i]);
232 return val;
233 }
234
235 std::string findoption(const std::vector<std::string>& cmdline, const std::string& option)
236 {
237 std::string value;
238 for(auto i : cmdline) {
239 std::string arg = i;
240 if(arg.length() < 3 + option.length())
241 continue;
242 if(arg[0] != '-' || arg[1] != '-' || arg.substr(2, option.length()) != option ||
243 arg[2 + option.length()] != '=')
244 continue;
245 if(value == "")
246 value = arg.substr(3 + option.length());
247 else
248 std::cerr << "WARNING: Ignored duplicate option for '" << option << "'." << std::endl;
249 if(value == "")
250 throw std::runtime_error("Empty value for '" + option + "' is not allowed");
251 }
252 return value;
253 }
254
255 }
256
257 loaded_slot::loaded_slot() throw(std::bad_alloc)
258 {
259 valid = false;
260 }
261
262 loaded_slot::loaded_slot(const std::string& filename, const std::string& base, bool xml_flag) throw(std::bad_alloc,
263 std::runtime_error)
264 {
265 xml = xml_flag;
266 if(filename == "") {
267 valid = false;
268 return;
269 }
270 valid = true;
271 data = read_file_relative(filename, base);
272 sha256 = sha256::hash(data);
273 if(xml) {
274 size_t osize = data.size();
275 data.resize(osize + 1);
276 data[osize] = 0;
277 }
278 }
279
280 void loaded_slot::patch(const std::vector<char>& patch, int32_t offset) throw(std::bad_alloc, std::runtime_error)
281 {
282 bool warned_extend = false;
283 bool warned_negative = false;
284 size_t poffset = 0;
285 if(xml && valid)
286 data.resize(data.size() - 1);
287 if(readval(patch, poffset, 5) != 0x5041544348)
288 throw std::runtime_error("Bad IPS file magic");
289 poffset += 5;
290 while(1) {
291 uint64_t addr = readval(patch, poffset, 3);
292 if(addr == 0x454F46)
293 break;
294 uint64_t len = readval(patch, poffset + 3, 2);
295 size_t readstride;
296 size_t roffset;
297 size_t opsize;
298 if(len) {
299 //Verbatim block.
300 readstride = 1;
301 roffset = poffset + 5;
302 opsize = 5 + len;
303 } else {
304 //RLE block. Read real size first.
305 len = readval(patch, poffset + 5, 2);
306 readstride = 0;
307 roffset = poffset + 7;
308 opsize = 8;
309 }
310 for(uint64_t i = 0; i < len; i++) {
311 int64_t baddr = addr + i + offset;
312 if(baddr < 0) {
313 if(!warned_negative)
314 std::cerr << "WARNING: IPS patch tries to modify negative offset. "
315 << "Bad patch or offset?" << std::endl;
316 warned_negative = true;
317 continue;
318 } else if(baddr >= static_cast<int64_t>(data.size())) {
319 if(!warned_extend)
320 std::cerr << "WARNING: IPS patch tries to extend the ROM. "
321 << "Bad patch or offset? " << std::endl;
322 warned_extend = true;
323 size_t oldsize = data.size();
324 data.resize(baddr + 1);
325 for(size_t j = oldsize; j <= static_cast<uint64_t>(baddr); j++)
326 data[j] = 0;
327 }
328 size_t srcoff = roffset + readstride * i;
329 if(srcoff >= patch.size())
330 throw std::runtime_error("Corrupt IPS patch");
331 data[baddr] = static_cast<uint8_t>(patch[srcoff]);
332 }
333 poffset += opsize;
334 }
335 //Mark the slot as valid and update hash.
336 valid = true;
337 sha256 = sha256::hash(data);
338 if(xml) {
339 size_t osize = data.size();
340 data.resize(osize + 1);
341 data[osize] = 0;
342 }
343 }
344
345 rom_files::rom_files() throw()
346 {
347 rtype = ROMTYPE_NONE;
348 region = REGION_AUTO;
349
350 }
351
352 rom_files::rom_files(const std::vector<std::string>& cmdline) throw(std::bad_alloc, std::runtime_error)
353 {
354 rom = rom_xml = slota = slota_xml = slotb = slotb_xml = "";
355 std::string arr[sizeof(romtypes_to_recognize) / sizeof(romtypes_to_recognize[0])];
356 unsigned long flags = 0;
357 for(size_t i = 0; i < sizeof(romtypes_to_recognize) / sizeof(romtypes_to_recognize[0]); i++) {
358 arr[i] = findoption(cmdline, romtypes_to_recognize[i]);
359 if(arr[i] != "")
360 flags |= (1L << i);
361 }
362 rtype = recognize_platform(flags);
363 for(size_t i = 0; i < sizeof(romtypes_to_recognize) / sizeof(romtypes_to_recognize[0]); i++) {
364 if(arr[i] != "")
365 switch(recognize_commandline_rom(rtype, romtypes_to_recognize[i])) {
366 case 0: rom = arr[i]; break;
367 case 1: rom_xml = arr[i]; break;
368 case 2: slota = arr[i]; break;
369 case 3: slota_xml = arr[i]; break;
370 case 4: slotb = arr[i]; break;
371 case 5: slotb_xml = arr[i]; break;
372 };
373 }
374 region = (rtype == ROMTYPE_SGB || rtype == ROMTYPE_SNES) ? REGION_AUTO : REGION_NTSC;
375 if(option_set(cmdline, "--ntsc"))
376 region = REGION_NTSC;
377 else if(option_set(cmdline, "--pal"))
378 region = REGION_PAL;
379
380 base_file = "";
381 }
382
383 void rom_files::resolve_relative() throw(std::bad_alloc, std::runtime_error)
384 {
385 rom = resolve_file_relative(rom, base_file);
386 rom_xml = resolve_file_relative(rom_xml, base_file);
387 slota = resolve_file_relative(slota, base_file);
388 slota_xml = resolve_file_relative(slota_xml, base_file);
389 slotb = resolve_file_relative(slotb, base_file);
390 slotb_xml = resolve_file_relative(slotb_xml, base_file);
391 base_file = "";
392 }
393
394
395 std::pair<enum rom_type, enum rom_region> get_current_rom_info() throw()
396 {
397 return std::make_pair(current_rom_type, current_region);
398 }
399
400 loaded_rom::loaded_rom() throw()
401 {
402 rtype = ROMTYPE_NONE;
403 region = orig_region = REGION_AUTO;
404 }
405
406 loaded_rom::loaded_rom(const rom_files& files) throw(std::bad_alloc, std::runtime_error)
407 {
408 std::string _slota = files.slota;
409 std::string _slota_xml = files.slota_xml;
410 std::string _slotb = files.slotb;
411 std::string _slotb_xml = files.slotb_xml;
412 if(files.rtype == ROMTYPE_NONE) {
413 rtype = ROMTYPE_NONE;
414 region = orig_region = files.region;
415 return;
416 }
417 if((_slota != "" || _slota_xml != "") && files.rtype == ROMTYPE_SNES) {
418 messages << "WARNING: SNES takes only 1 ROM image" << std::endl;
419 _slota = "";
420 _slota_xml = "";
421 }
422 if((_slotb != "" || _slotb_xml != "") && files.rtype != ROMTYPE_SUFAMITURBO) {
423 messages << "WARNING: Only Sufami Turbo takes 3 ROM images" << std::endl;
424 _slotb = "";
425 _slotb_xml = "";
426 }
427 if(files.rom_xml != "" && files.rom == "")
428 messages << "WARNING: " << name_subrom(files.rtype, 0) << " specified without corresponding "
429 << name_subrom(files.rtype, 1) << std::endl;
430 if(_slota_xml != "" && _slota == "")
431 messages << "WARNING: " << name_subrom(files.rtype, 2) << " specified without corresponding "
432 << name_subrom(files.rtype, 3) << std::endl;
433 if(_slotb_xml != "" && _slotb == "")
434 messages << "WARNING: " << name_subrom(files.rtype, 4) << " specified without corresponding "
435 << name_subrom(files.rtype, 5) << std::endl;
436
437 rtype = files.rtype;
438 rom = loaded_slot(files.rom, files.base_file);
439 rom_xml = loaded_slot(files.rom_xml, files.base_file, true);
440 slota = loaded_slot(_slota, files.base_file);
441 slota_xml = loaded_slot(_slota_xml, files.base_file, true);
442 slotb = loaded_slot(_slotb, files.base_file);
443 slotb_xml = loaded_slot(_slotb_xml, files.base_file, true);
444 orig_region = region = files.region;
445 }
446
447 void loaded_rom::load() throw(std::bad_alloc, std::runtime_error)
448 {
449 current_rom_type = ROMTYPE_NONE;
450 if(region == REGION_AUTO && orig_region != REGION_AUTO)
451 region = orig_region;
452 if(region != orig_region && orig_region != REGION_AUTO)
453 throw std::runtime_error("Trying to force incompatible region");
454 if(rtype == ROMTYPE_NONE)
455 throw std::runtime_error("Can't insert cartridge of type NONE!");
456 switch(region) {
457 case REGION_AUTO:
458 config.region = System::Region::Autodetect;
459 break;
460 case REGION_NTSC:
461 config.region = System::Region::NTSC;
462 break;
463 case REGION_PAL:
464 config.region = System::Region::PAL;
465 break;
466 default:
467 throw std::runtime_error("Trying to force unknown region");
468 }
469 switch(rtype) {
470 case ROMTYPE_SNES:
471 if(!snes_load_cartridge_normal(rom_xml, rom, rom))
472 throw std::runtime_error("Can't load cartridge ROM");
473 break;
474 case ROMTYPE_BSX:
475 if(region == REGION_PAL)
476 throw std::runtime_error("BSX can't be PAL");
477 if(!snes_load_cartridge_bsx(rom_xml, rom, rom, slota_xml, slota, slota))
478 throw std::runtime_error("Can't load cartridge ROM");
479 break;
480 case ROMTYPE_BSXSLOTTED:
481 if(region == REGION_PAL)
482 throw std::runtime_error("Slotted BSX can't be PAL");
483 if(!snes_load_cartridge_bsx_slotted(rom_xml, rom, rom, slota_xml, slota, slota))
484 throw std::runtime_error("Can't load cartridge ROM");
485 break;
486 case ROMTYPE_SGB:
487 if(!snes_load_cartridge_super_game_boy(rom_xml, rom, rom, slota_xml, slota, slota))
488 throw std::runtime_error("Can't load cartridge ROM");
489 break;
490 case ROMTYPE_SUFAMITURBO:
491 if(region == REGION_PAL)
492 throw std::runtime_error("Sufami Turbo can't be PAL");
493 if(!snes_load_cartridge_sufami_turbo(rom_xml, rom, rom, slota_xml, slota, slota, slotb_xml, slotb,
494 slotb))
495 throw std::runtime_error("Can't load cartridge ROM");
496 break;
497 default:
498 throw std::runtime_error("Unknown cartridge type");
499 }
500 if(region == REGION_AUTO)
501 region = snes_get_region() ? REGION_PAL : REGION_NTSC;
502 snes_power();
503 current_rom_type = rtype;
504 current_region = region;
505 refresh_cart_mappings();
506 }
507
508 void loaded_rom::do_patch(const std::vector<std::string>& cmdline) throw(std::bad_alloc,
509 std::runtime_error)
510 {
511 int32_t offset = 0;
512 for(auto i : cmdline) {
513 std::string opt = i;
514 if(opt.length() >= 13 && opt.substr(0, 13) == "--ips-offset=") {
515 try {
516 offset = parse_value<int32_t>(opt.substr(13));
517 } catch(std::exception& e) {
518 throw std::runtime_error("Invalid IPS offset option '" + opt + "': " + e.what());
519 }
520 continue;
521 }
522 if(opt.length() < 6 || opt.substr(0, 6) != "--ips-")
523 continue;
524 size_t split = opt.find_first_of("=");
525 if(split > opt.length())
526 throw std::runtime_error("Invalid IPS patch argument '" + opt + "'");
527 std::string kind = opt.substr(6, split - 6);
528 std::string filename = opt.substr(split + 1);
529 messages << "Patching " << kind << " using '" << filename << "'" << std::endl;
530 std::vector<char> ips;
531 try {
532 ips = read_file_relative(filename, "");
533 } catch(std::bad_alloc& e) {
534 OOM_panic();
535 } catch(std::exception& e) {
536 throw std::runtime_error("Can't read IPS '" + filename + "': " + e.what());
537 }
538 try {
539 switch(recognize_commandline_rom(rtype, kind)) {
540 case 0: rom.patch(ips, offset); break;
541 case 1: rom_xml.patch(ips, offset); break;
542 case 2: slota.patch(ips, offset); break;
543 case 3: slota_xml.patch(ips, offset); break;
544 case 4: slotb.patch(ips, offset); break;
545 case 5: slotb_xml.patch(ips, offset); break;
546 default:
547 throw std::runtime_error("Invalid subROM '" + kind + "' to patch");
548 }
549 } catch(std::bad_alloc& e) {
550 OOM_panic();
551 } catch(std::exception& e) {
552 throw std::runtime_error("Can't Patch with IPS '" + filename + "': " + e.what());
553 }
554 }
555 }
556
557 namespace
558 {
559 std::string sram_name(const nall::string& _id, Cartridge::Slot slotname)
560 {
561 std::string id(_id, _id.length());
562 if(slotname == Cartridge::Slot::SufamiTurboA)
563 return "slota." + id.substr(1);
564 if(slotname == Cartridge::Slot::SufamiTurboB)
565 return "slotb." + id.substr(1);
566 return id.substr(1);
567 }
568 }
569
570 std::map<std::string, std::vector<char>> save_sram() throw(std::bad_alloc)
571 {
572 std::map<std::string, std::vector<char>> out;
573 for(unsigned i = 0; i < cartridge.nvram.size(); i++) {
574 Cartridge::NonVolatileRAM& r = cartridge.nvram[i];
575 std::string savename = sram_name(r.id, r.slot);
576 std::vector<char> x;
577 x.resize(r.size);
578 memcpy(&x[0], r.data, r.size);
579 out[savename] = x;
580 }
581 return out;
582 }
583
584 void load_sram(std::map<std::string, std::vector<char>>& sram) throw(std::bad_alloc)
585 {
586 std::set<std::string> used;
587 if(sram.empty())
588 return;
589 for(unsigned i = 0; i < cartridge.nvram.size(); i++) {
590 Cartridge::NonVolatileRAM& r = cartridge.nvram[i];
591 std::string savename = sram_name(r.id, r.slot);
592 if(sram.count(savename)) {
593 std::vector<char>& x = sram[savename];
594 if(r.size != x.size())
595 messages << "WARNING: SRAM '" << savename << "': Loaded " << x.size()
596 << " bytes, but the SRAM is " << r.size << "." << std::endl;
597 memcpy(r.data, &x[0], (r.size < x.size()) ? r.size : x.size());
598 used.insert(savename);
599 } else
600 messages << "WARNING: SRAM '" << savename << ": No data." << std::endl;
601 }
602 for(auto i : sram)
603 if(!used.count(i.first))
604 messages << "WARNING: SRAM '" << i.first << ": Not found on cartridge." << std::endl;
605 }
606
607 std::map<std::string, std::vector<char>> load_sram_commandline(const std::vector<std::string>& cmdline)
608 throw(std::bad_alloc, std::runtime_error)
609 {
610 std::map<std::string, std::vector<char>> ret;
611 for(auto i : cmdline) {
612 std::string opt = i;
613 if(opt.length() >= 11 && opt.substr(0, 11) == "--continue=") {
614 size_t split = opt.find_first_of("=");
615 if(split > opt.length() - 1)
616 throw std::runtime_error("Bad SRAM option '" + opt + "'");
617 std::string file = opt.substr(split + 1);
618 zip_reader r(file);
619 for(auto j : r) {
620 std::string fname = j;
621 if(fname.length() < 6 || fname.substr(0, 5) != "sram.")
622 continue;
623 std::istream& x = r[fname];
624 try {
625 std::vector<char> out;
626 boost::iostreams::back_insert_device<std::vector<char>> rd(out);
627 boost::iostreams::copy(x, rd);
628 delete &x;
629 ret[fname.substr(5, split - 5)] = out;
630 } catch(...) {
631 delete &x;
632 throw;
633 }
634 }
635 continue;
636 }
637 if(opt.length() < 8 || opt.substr(0, 7) != "--sram-")
638 continue;
639 size_t split = opt.find_first_of("=");
640 if(split > opt.length() - 1)
641 throw std::runtime_error("Bad SRAM option '" + opt + "'");
642 std::string kind = opt.substr(7, split - 7);
643 std::string file = opt.substr(split + 1);
644 if(kind == "")
645 throw std::runtime_error("Bad SRAM option '" + opt + "'");
646 try {
647 ret[kind] = read_file_relative(file, "");
648 } catch(std::bad_alloc& e) {
649 throw;
650 } catch(std::runtime_error& e) {
651 throw std::runtime_error("Can't load SRAM '" + kind + "': " + e.what());
652 }
653 }
654 return ret;
655 }
656
657 std::vector<char> save_core_state() throw(std::bad_alloc)
658 {
659 SNES::system.runtosave();
660 std::vector<char> ret;
661 serializer s = SNES::system.serialize();
662 ret.resize(s.size());
663 memcpy(&ret[0], s.data(), s.size());
664 size_t offset = ret.size();
665 unsigned char tmp[32];
666 sha256::hash(tmp, ret);
667 ret.resize(offset + 32);
668 memcpy(&ret[offset], tmp, 32);
669 return ret;
670 }
671
672 void load_core_state(const std::vector<char>& buf) throw(std::runtime_error)
673 {
674 if(buf.size() < 32)
675 throw std::runtime_error("Savestate corrupt");
676 unsigned char tmp[32];
677 sha256::hash(tmp, reinterpret_cast<const uint8_t*>(&buf[0]), buf.size() - 32);
678 if(memcmp(tmp, &buf[buf.size() - 32], 32))
679 throw std::runtime_error("Savestate corrupt");
680 serializer s(reinterpret_cast<const uint8_t*>(&buf[0]), buf.size() - 32);
681 if(!SNES::system.unserialize(s))
682 throw std::runtime_error("SNES core rejected savestate");
683 }
684
685 namespace
686 {
687 struct index_entry
688 {
689 std::string hash;
690 std::string relpath;
691 std::string from;
692 };
693 std::list<index_entry> rom_index;
694
695 void replace_index(std::list<index_entry> new_index, const std::string& source)
696 {
697 std::list<index_entry> tmp_index;
698 for(auto i : rom_index) {
699 if(i.from != source)
700 tmp_index.push_back(i);
701 }
702 for(auto i : new_index) {
703 tmp_index.push_back(i);
704 }
705 rom_index = new_index;
706 }
707 }
708
709 void load_index_file(const std::string& filename) throw(std::bad_alloc, std::runtime_error)
710 {
711 std::istream& s = open_file_relative(filename, "");
712
713 try {
714 std::list<index_entry> partial_index;
715 std::string line;
716 while(std::getline(s, line)) {
717 index_entry e;
718 if(line == "")
719 continue;
720 tokensplitter t(line);
721 e.hash = static_cast<std::string>(t);
722 e.relpath = t.tail();
723 e.from = filename;
724 if(e.hash.length() != 64 || e.relpath == "")
725 throw std::runtime_error("Bad index file");
726 partial_index.push_back(e);
727 }
728 replace_index(partial_index, filename);
729 } catch(...) {
730 delete &s;
731 throw;
732 }
733 delete &s;
734 }
735
736 std::string lookup_file_by_sha256(const std::string& hash) throw(std::bad_alloc, std::runtime_error)
737 {
738 if(hash == "")
739 return "";
740 for(auto i : rom_index) {
741 if(i.hash != hash)
742 continue;
743 try {
744 std::istream& o = open_file_relative(i.relpath, i.from);
745 delete &o;
746 return resolve_file_relative(i.relpath, i.from);
747 } catch(...) {
748 continue;
749 }
750 }
751 throw std::runtime_error("No file with hash '" + hash + "' found in known indices");
752 }
753
754 std::string name_subrom(enum rom_type major, unsigned romnumber) throw(std::bad_alloc)
755 {
756 if(romnumber == 0)
757 return "ROM";
758 else if(romnumber == 1)
759 return "ROM XML";
760 else if(major == ROMTYPE_BSX && romnumber == 2)
761 return "BSX ROM";
762 else if(major == ROMTYPE_BSX && romnumber == 3)
763 return "BSX XML";
764 else if(major == ROMTYPE_BSXSLOTTED && romnumber == 2)
765 return "BSX ROM";
766 else if(major == ROMTYPE_BSXSLOTTED && romnumber == 3)
767 return "BSX XML";
768 else if(major == ROMTYPE_SGB && romnumber == 2)
769 return "DMG ROM";
770 else if(major == ROMTYPE_SGB && romnumber == 3)
771 return "DMG XML";
772 else if(major == ROMTYPE_SUFAMITURBO && romnumber == 2)
773 return "SLOT A ROM";
774 else if(major == ROMTYPE_SUFAMITURBO && romnumber == 3)
775 return "SLOT A XML";
776 else if(major == ROMTYPE_SUFAMITURBO && romnumber == 4)
777 return "SLOT B ROM";
778 else if(major == ROMTYPE_SUFAMITURBO && romnumber == 5)
779 return "SLOT B XML";
780 else if(romnumber % 2)
781 return "UNKNOWN XML";
782 else
783 return "UNKNOWN ROM";
784 }
785
786
787 int recognize_commandline_rom(enum rom_type major, const std::string& romname) throw(std::bad_alloc)
788 {
789 if(romname == romtypes_to_recognize[0])
790 return 0;
791 else if(romname == romtypes_to_recognize[6])
792 return 1;
793 else if(major == ROMTYPE_BSX && romname == romtypes_to_recognize[1])
794 return 2;
795 else if(major == ROMTYPE_BSX && romname == romtypes_to_recognize[7])
796 return 3;
797 else if(major == ROMTYPE_BSX && romname == romtypes_to_recognize[2])
798 return 2;
799 else if(major == ROMTYPE_BSX && romname == romtypes_to_recognize[8])
800 return 3;
801 else if(major == ROMTYPE_SGB && romname == romtypes_to_recognize[3])
802 return 2;
803 else if(major == ROMTYPE_SGB && romname == romtypes_to_recognize[9])
804 return 3;
805 else if(major == ROMTYPE_SUFAMITURBO && romname == romtypes_to_recognize[4])
806 return 2;
807 else if(major == ROMTYPE_SUFAMITURBO && romname == romtypes_to_recognize[10])
808 return 3;
809 else if(major == ROMTYPE_SUFAMITURBO && romname == romtypes_to_recognize[5])
810 return 4;
811 else if(major == ROMTYPE_SUFAMITURBO && romname == romtypes_to_recognize[11])
812 return 5;
813 else
814 return -1;
815 }
816
817 rom_type recognize_platform(unsigned long flags) throw(std::bad_alloc, std::runtime_error)
818 {
819 if((flags & 07700) >> 6 & ~(flags & 077))
820 throw std::runtime_error("SubROM XML specified without corresponding subROM");
821 if((flags & 1) == 0)
822 throw std::runtime_error("No SNES main cartridge ROM specified");
823 if((flags & 077) == 1)
824 return ROMTYPE_SNES;
825 if((flags & 077) == 3)
826 return ROMTYPE_BSX;
827 if((flags & 077) == 5)
828 return ROMTYPE_BSXSLOTTED;
829 if((flags & 077) == 9)
830 return ROMTYPE_SGB;
831 if((flags & 060) != 0 && (flags & 017) == 1)
832 return ROMTYPE_SUFAMITURBO;
833 throw std::runtime_error("Not valid combination of rom/bsx/bsxslotted/dmg/slot-a/slot-b");
834 }
Rerecording SNES/GB(C) emulator based on bsnes / gambatte core