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cd: integrate new gfx code
[picodrive.git] / pico / state.c
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cff531af 1/*\r
2 * PicoDrive\r
3 * (C) notaz, 2010\r
4 *\r
5 * This work is licensed under the terms of MAME license.\r
6 * See COPYING file in the top-level directory.\r
7 */\r
b4db550e 8\r
9#include "pico_int.h"\r
10#include <zlib/zlib.h>\r
11\r
12#include "../cpu/sh2/sh2.h"\r
13#include "sound/ym2612.h"\r
86b38dc4 14#include "state.h"\r
b4db550e 15\r
16// sn76496\r
17extern int *sn76496_regs;\r
18\r
b4db550e 19static arearw *areaRead;\r
20static arearw *areaWrite;\r
21static areaeof *areaEof;\r
22static areaseek *areaSeek;\r
23static areaclose *areaClose;\r
24\r
25carthw_state_chunk *carthw_chunks;\r
26void (*PicoStateProgressCB)(const char *str);\r
27void (*PicoLoadStateHook)(void);\r
28\r
29\r
30/* I/O functions */\r
31static size_t gzRead2(void *p, size_t _size, size_t _n, void *file)\r
32{\r
33 return gzread(file, p, _size * _n);\r
34}\r
35\r
36static size_t gzWrite2(void *p, size_t _size, size_t _n, void *file)\r
37{\r
38 return gzwrite(file, p, _size * _n);\r
39}\r
40\r
41static void set_cbs(int gz)\r
42{\r
43 if (gz) {\r
44 areaRead = gzRead2;\r
45 areaWrite = gzWrite2;\r
46 areaEof = (areaeof *) gzeof;\r
47 areaSeek = (areaseek *) gzseek;\r
48 areaClose = (areaclose *) gzclose;\r
49 } else {\r
50 areaRead = (arearw *) fread;\r
51 areaWrite = (arearw *) fwrite;\r
52 areaEof = (areaeof *) feof;\r
53 areaSeek = (areaseek *) fseek;\r
54 areaClose = (areaclose *) fclose;\r
55 }\r
56}\r
57\r
58static void *open_save_file(const char *fname, int is_save)\r
59{\r
60 int len = strlen(fname);\r
61 void *afile = NULL;\r
62\r
63 if (len > 3 && strcmp(fname + len - 3, ".gz") == 0)\r
64 {\r
65 if ( (afile = gzopen(fname, is_save ? "wb" : "rb")) ) {\r
66 set_cbs(1);\r
67 if (is_save)\r
68 gzsetparams(afile, 9, Z_DEFAULT_STRATEGY);\r
69 }\r
70 }\r
71 else\r
72 {\r
73 if ( (afile = fopen(fname, is_save ? "wb" : "rb")) ) {\r
74 set_cbs(0);\r
75 }\r
76 }\r
77\r
78 return afile;\r
79}\r
80\r
81// legacy savestate loading\r
82#define SCANP(f, x) areaRead(&Pico.x, sizeof(Pico.x), 1, f)\r
83\r
84static int state_load_legacy(void *file)\r
85{\r
86 unsigned char head[32];\r
87 unsigned char cpu[0x60];\r
88 unsigned char cpu_z80[Z80_STATE_SIZE];\r
89 void *ym2612_regs;\r
90 int ok;\r
91\r
92 memset(&cpu,0,sizeof(cpu));\r
93 memset(&cpu_z80,0,sizeof(cpu_z80));\r
94\r
95 memset(head, 0, sizeof(head));\r
96 areaRead(head, sizeof(head), 1, file);\r
97 if (strcmp((char *)head, "Pico") != 0)\r
98 return -1;\r
99\r
100 elprintf(EL_STATUS, "legacy savestate");\r
101\r
102 // Scan all the memory areas:\r
103 SCANP(file, ram);\r
104 SCANP(file, vram);\r
105 SCANP(file, zram);\r
106 SCANP(file, cram);\r
107 SCANP(file, vsram);\r
108\r
109 // Pack, scan and unpack the cpu data:\r
110 areaRead(cpu, sizeof(cpu), 1, file);\r
111 SekUnpackCpu(cpu, 0);\r
112\r
113 SCANP(file, m);\r
114 SCANP(file, video);\r
115\r
116 ok = areaRead(cpu_z80, sizeof(cpu_z80), 1, file) == sizeof(cpu_z80);\r
117 // do not unpack if we fail to load z80 state\r
118 if (!ok) z80_reset();\r
119 else z80_unpack(cpu_z80);\r
120\r
121 ym2612_regs = YM2612GetRegs();\r
122 areaRead(sn76496_regs, 28*4, 1, file);\r
123 areaRead(ym2612_regs, 0x200+4, 1, file);\r
124 ym2612_unpack_state();\r
125\r
126 return 0;\r
127}\r
128\r
129// ---------------------------------------------------------------------------\r
130\r
131typedef enum {\r
132 CHUNK_M68K = 1,\r
133 CHUNK_RAM,\r
134 CHUNK_VRAM,\r
135 CHUNK_ZRAM,\r
136 CHUNK_CRAM, // 5\r
137 CHUNK_VSRAM,\r
138 CHUNK_MISC,\r
139 CHUNK_VIDEO,\r
140 CHUNK_Z80,\r
141 CHUNK_PSG, // 10\r
142 CHUNK_FM,\r
143 // CD stuff\r
144 CHUNK_S68K,\r
145 CHUNK_PRG_RAM,\r
146 CHUNK_WORD_RAM,\r
147 CHUNK_PCM_RAM, // 15\r
148 CHUNK_BRAM,\r
149 CHUNK_GA_REGS,\r
150 CHUNK_PCM,\r
151 CHUNK_CDC,\r
152 CHUNK_CDD, // 20\r
153 CHUNK_SCD,\r
154 CHUNK_RC,\r
155 CHUNK_MISC_CD,\r
156 //\r
157 CHUNK_IOPORTS, // versions < 1.70 did not save that..\r
158 CHUNK_SMS, // 25\r
159 // 32x\r
160 CHUNK_MSH2,\r
161 CHUNK_MSH2_DATA,\r
162 CHUNK_MSH2_PERI,\r
163 CHUNK_SSH2,\r
164 CHUNK_SSH2_DATA, // 30\r
165 CHUNK_SSH2_PERI,\r
166 CHUNK_32XSYS,\r
167 CHUNK_M68K_BIOS,\r
168 CHUNK_MSH2_BIOS,\r
169 CHUNK_SSH2_BIOS, // 35\r
170 CHUNK_SDRAM,\r
171 CHUNK_DRAM,\r
172 CHUNK_32XPAL,\r
6a98f03e 173 CHUNK_32X_EVT,\r
27e26273 174 CHUNK_32X_FIRST = CHUNK_MSH2,\r
175 CHUNK_32X_LAST = CHUNK_32X_EVT,\r
ae214f1c 176 // add new stuff here\r
177 CHUNK_CD_EVT = 50,\r
a93a80de 178 CHUNK_CD_GFX,\r
b4db550e 179 //\r
180 CHUNK_DEFAULT_COUNT,\r
ae214f1c 181 CHUNK_CARTHW_ = CHUNK_CARTHW, // 64 (defined in PicoInt)\r
b4db550e 182} chunk_name_e;\r
183\r
cfae1ae1 184static const char * const chunk_names[CHUNK_DEFAULT_COUNT] = {\r
b4db550e 185 "INVALID!",\r
186 "M68K state",\r
187 "RAM",\r
188 "VRAM",\r
189 "ZRAM",\r
190 "CRAM", // 5\r
191 "VSRAM",\r
192 "emu state",\r
193 "VIDEO",\r
194 "Z80 state",\r
195 "PSG", // 10\r
196 "FM",\r
197 // CD stuff\r
198 "S68K state",\r
199 "PRG_RAM",\r
200 "WORD_RAM",\r
201 "PCM_RAM", // 15\r
202 "BRAM",\r
203 "GATE ARRAY regs",\r
204 "PCM state",\r
205 "CDC",\r
206 "CDD", // 20\r
207 "SCD",\r
208 "GFX chip",\r
209 "MCD state",\r
210 //\r
211 "IO",\r
212 "SMS state", // 25\r
213 // 32x\r
214 "MSH2",\r
215 "MSH2 data",\r
216 "MSH2 peri",\r
217 "SSH2",\r
218 "SSH2 data", // 30\r
219 "SSH2 peri",\r
220 "32X system regs",\r
221 "M68K BIOS",\r
222 "MSH2 BIOS",\r
223 "SSH2 BIOS", // 35\r
224 "SDRAM",\r
225 "DRAM",\r
226 "PAL",\r
6a98f03e 227 "events",\r
b4db550e 228};\r
229\r
230static int write_chunk(chunk_name_e name, int len, void *data, void *file)\r
231{\r
232 size_t bwritten = 0;\r
233 bwritten += areaWrite(&name, 1, 1, file);\r
234 bwritten += areaWrite(&len, 1, 4, file);\r
235 bwritten += areaWrite(data, 1, len, file);\r
236\r
237 return (bwritten == len + 4 + 1);\r
238}\r
239\r
240#define CHECKED_WRITE(name,len,data) { \\r
cfae1ae1 241 if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT && chunk_names[name]) { \\r
b4db550e 242 strncpy(sbuff + 9, chunk_names[name], sizeof(sbuff) - 9); \\r
243 PicoStateProgressCB(sbuff); \\r
244 } \\r
245 if (!write_chunk(name, len, data, file)) return 1; \\r
246}\r
247\r
248#define CHECKED_WRITE_BUFF(name,buff) { \\r
cfae1ae1 249 if (PicoStateProgressCB && name < CHUNK_DEFAULT_COUNT && chunk_names[name]) { \\r
b4db550e 250 strncpy(sbuff + 9, chunk_names[name], sizeof(sbuff) - 9); \\r
251 PicoStateProgressCB(sbuff); \\r
252 } \\r
253 if (!write_chunk(name, sizeof(buff), &buff, file)) return 1; \\r
254}\r
255\r
256static int state_save(void *file)\r
257{\r
258 char sbuff[32] = "Saving.. ";\r
259 unsigned char buff[0x60], buff_z80[Z80_STATE_SIZE];\r
260 void *ym2612_regs = YM2612GetRegs();\r
261 int ver = 0x0170; // not really used..\r
a93a80de 262 int len;\r
b4db550e 263\r
264 areaWrite("PicoSEXT", 1, 8, file);\r
265 areaWrite(&ver, 1, 4, file);\r
266\r
267 if (!(PicoAHW & PAHW_SMS)) {\r
268 memset(buff, 0, sizeof(buff));\r
269 SekPackCpu(buff, 0);\r
270 CHECKED_WRITE_BUFF(CHUNK_M68K, buff);\r
271 CHECKED_WRITE_BUFF(CHUNK_RAM, Pico.ram);\r
272 CHECKED_WRITE_BUFF(CHUNK_VSRAM, Pico.vsram);\r
273 CHECKED_WRITE_BUFF(CHUNK_IOPORTS, Pico.ioports);\r
274 ym2612_pack_state();\r
275 CHECKED_WRITE(CHUNK_FM, 0x200+4, ym2612_regs);\r
276 }\r
277 else {\r
278 CHECKED_WRITE_BUFF(CHUNK_SMS, Pico.ms);\r
279 }\r
280\r
281 CHECKED_WRITE_BUFF(CHUNK_VRAM, Pico.vram);\r
282 CHECKED_WRITE_BUFF(CHUNK_ZRAM, Pico.zram);\r
283 CHECKED_WRITE_BUFF(CHUNK_CRAM, Pico.cram);\r
284 CHECKED_WRITE_BUFF(CHUNK_MISC, Pico.m);\r
285 CHECKED_WRITE_BUFF(CHUNK_VIDEO, Pico.video);\r
286\r
287 z80_pack(buff_z80);\r
288 CHECKED_WRITE_BUFF(CHUNK_Z80, buff_z80);\r
289 CHECKED_WRITE(CHUNK_PSG, 28*4, sn76496_regs);\r
290\r
291 if (PicoAHW & PAHW_MCD)\r
292 {\r
293 memset(buff, 0, sizeof(buff));\r
294 SekPackCpu(buff, 1);\r
295 if (Pico_mcd->s68k_regs[3] & 4) // 1M mode?\r
296 wram_1M_to_2M(Pico_mcd->word_ram2M);\r
895d1512 297 memcpy(&Pico_mcd->m.hint_vector, Pico_mcd->bios + 0x72,\r
298 sizeof(Pico_mcd->m.hint_vector));\r
b4db550e 299\r
300 CHECKED_WRITE_BUFF(CHUNK_S68K, buff);\r
301 CHECKED_WRITE_BUFF(CHUNK_PRG_RAM, Pico_mcd->prg_ram);\r
302 CHECKED_WRITE_BUFF(CHUNK_WORD_RAM, Pico_mcd->word_ram2M); // in 2M format\r
303 CHECKED_WRITE_BUFF(CHUNK_PCM_RAM, Pico_mcd->pcm_ram);\r
304 CHECKED_WRITE_BUFF(CHUNK_BRAM, Pico_mcd->bram);\r
305 CHECKED_WRITE_BUFF(CHUNK_GA_REGS, Pico_mcd->s68k_regs); // GA regs, not CPU regs\r
306 CHECKED_WRITE_BUFF(CHUNK_PCM, Pico_mcd->pcm);\r
307 CHECKED_WRITE_BUFF(CHUNK_CDD, Pico_mcd->cdd);\r
308 CHECKED_WRITE_BUFF(CHUNK_CDC, Pico_mcd->cdc);\r
309 CHECKED_WRITE_BUFF(CHUNK_SCD, Pico_mcd->scd);\r
b4db550e 310 CHECKED_WRITE_BUFF(CHUNK_MISC_CD, Pico_mcd->m);\r
ae214f1c 311 memset(buff, 0, 0x40);\r
312 memcpy(buff, pcd_event_times, sizeof(pcd_event_times));\r
313 CHECKED_WRITE(CHUNK_CD_EVT, 0x40, buff);\r
a93a80de 314 len = gfx_context_save(buff);\r
315 CHECKED_WRITE(CHUNK_CD_GFX, len, buff);\r
b4db550e 316\r
317 if (Pico_mcd->s68k_regs[3] & 4) // convert back\r
318 wram_2M_to_1M(Pico_mcd->word_ram2M);\r
319 }\r
320\r
f3a57b2d 321#ifndef NO_32X\r
b4db550e 322 if (PicoAHW & PAHW_32X)\r
323 {\r
324 unsigned char cpubuff[SH2_STATE_SIZE];\r
325\r
326 memset(cpubuff, 0, sizeof(cpubuff));\r
327\r
328 sh2_pack(&sh2s[0], cpubuff);\r
329 CHECKED_WRITE_BUFF(CHUNK_MSH2, cpubuff);\r
f81107f5 330 CHECKED_WRITE_BUFF(CHUNK_MSH2_DATA, sh2s[0].data_array);\r
331 CHECKED_WRITE_BUFF(CHUNK_MSH2_PERI, sh2s[0].peri_regs);\r
b4db550e 332\r
333 sh2_pack(&sh2s[1], cpubuff);\r
334 CHECKED_WRITE_BUFF(CHUNK_SSH2, cpubuff);\r
f81107f5 335 CHECKED_WRITE_BUFF(CHUNK_SSH2_DATA, sh2s[1].data_array);\r
336 CHECKED_WRITE_BUFF(CHUNK_SSH2_PERI, sh2s[1].peri_regs);\r
b4db550e 337\r
338 CHECKED_WRITE_BUFF(CHUNK_32XSYS, Pico32x);\r
339 CHECKED_WRITE_BUFF(CHUNK_M68K_BIOS, Pico32xMem->m68k_rom);\r
340 CHECKED_WRITE_BUFF(CHUNK_MSH2_BIOS, Pico32xMem->sh2_rom_m);\r
341 CHECKED_WRITE_BUFF(CHUNK_SSH2_BIOS, Pico32xMem->sh2_rom_s);\r
342 CHECKED_WRITE_BUFF(CHUNK_SDRAM, Pico32xMem->sdram);\r
343 CHECKED_WRITE_BUFF(CHUNK_DRAM, Pico32xMem->dram);\r
344 CHECKED_WRITE_BUFF(CHUNK_32XPAL, Pico32xMem->pal);\r
ed4402a7 345\r
6a98f03e 346 memset(buff, 0, 0x40);\r
ae214f1c 347 memcpy(buff, p32x_event_times, sizeof(p32x_event_times));\r
6a98f03e 348 CHECKED_WRITE(CHUNK_32X_EVT, 0x40, buff);\r
b4db550e 349 }\r
f3a57b2d 350#endif\r
b4db550e 351\r
352 if (carthw_chunks != NULL)\r
353 {\r
354 carthw_state_chunk *chwc;\r
355 if (PicoStateProgressCB)\r
356 PicoStateProgressCB("Saving.. cart hw state");\r
357 for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++)\r
358 CHECKED_WRITE(chwc->chunk, chwc->size, chwc->ptr);\r
359 }\r
360\r
361 return 0;\r
362}\r
363\r
364static int g_read_offs = 0;\r
365\r
366#define R_ERROR_RETURN(error) \\r
367{ \\r
368 elprintf(EL_STATUS, "load_state @ %x: " error, g_read_offs); \\r
369 return 1; \\r
370}\r
371\r
372// when is eof really set?\r
373#define CHECKED_READ(len,data) { \\r
374 if (areaRead(data, 1, len, file) != len) { \\r
375 if (len == 1 && areaEof(file)) goto readend; \\r
376 R_ERROR_RETURN("areaRead: premature EOF\n"); \\r
377 return 1; \\r
378 } \\r
379 g_read_offs += len; \\r
380}\r
381\r
382#define CHECKED_READ2(len2,data) { \\r
383 if (len2 != len) { \\r
384 elprintf(EL_STATUS, "unexpected len %i, wanted %i (%s)", len, len2, #len2); \\r
385 if (len > len2) R_ERROR_RETURN("failed."); \\r
386 /* else read anyway and hope for the best.. */ \\r
387 } \\r
388 CHECKED_READ(len, data); \\r
389}\r
390\r
391#define CHECKED_READ_BUFF(buff) CHECKED_READ2(sizeof(buff), &buff);\r
392\r
393static int state_load(void *file)\r
394{\r
395 unsigned char buff_m68k[0x60], buff_s68k[0x60];\r
396 unsigned char buff_z80[Z80_STATE_SIZE];\r
397 unsigned char buff_sh2[SH2_STATE_SIZE];\r
6a98f03e 398 unsigned char buff[0x40];\r
b4db550e 399 unsigned char chunk;\r
400 void *ym2612_regs;\r
401 char header[8];\r
402 int ver, len;\r
403\r
03065bb6 404 memset(buff_m68k, 0, sizeof(buff_m68k));\r
405 memset(buff_s68k, 0, sizeof(buff_s68k));\r
406 memset(buff_z80, 0, sizeof(buff_z80));\r
407\r
b4db550e 408 g_read_offs = 0;\r
409 CHECKED_READ(8, header);\r
410 if (strncmp(header, "PicoSMCD", 8) && strncmp(header, "PicoSEXT", 8))\r
411 R_ERROR_RETURN("bad header");\r
412 CHECKED_READ(4, &ver);\r
413\r
ae214f1c 414 memset(pcd_event_times, 0, sizeof(pcd_event_times));\r
415 memset(p32x_event_times, 0, sizeof(p32x_event_times));\r
416\r
b4db550e 417 while (!areaEof(file))\r
418 {\r
419 CHECKED_READ(1, &chunk);\r
420 CHECKED_READ(4, &len);\r
421 if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");\r
422 if (CHUNK_S68K <= chunk && chunk <= CHUNK_MISC_CD && !(PicoAHW & PAHW_MCD))\r
423 R_ERROR_RETURN("cd chunk in non CD state?");\r
27e26273 424 if (CHUNK_32X_FIRST <= chunk && chunk <= CHUNK_32X_LAST && !(PicoAHW & PAHW_32X))\r
425 Pico32xStartup();\r
b4db550e 426\r
427 switch (chunk)\r
428 {\r
429 case CHUNK_M68K:\r
430 CHECKED_READ_BUFF(buff_m68k);\r
431 break;\r
432\r
433 case CHUNK_Z80:\r
434 CHECKED_READ_BUFF(buff_z80);\r
b4db550e 435 break;\r
436\r
437 case CHUNK_RAM: CHECKED_READ_BUFF(Pico.ram); break;\r
438 case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); break;\r
439 case CHUNK_ZRAM: CHECKED_READ_BUFF(Pico.zram); break;\r
440 case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); break;\r
441 case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); break;\r
442 case CHUNK_MISC: CHECKED_READ_BUFF(Pico.m); break;\r
443 case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); break;\r
444 case CHUNK_IOPORTS: CHECKED_READ_BUFF(Pico.ioports); break;\r
445 case CHUNK_PSG: CHECKED_READ2(28*4, sn76496_regs); break;\r
446 case CHUNK_FM:\r
447 ym2612_regs = YM2612GetRegs();\r
448 CHECKED_READ2(0x200+4, ym2612_regs);\r
449 ym2612_unpack_state();\r
450 break;\r
451\r
452 case CHUNK_SMS:\r
453 CHECKED_READ_BUFF(Pico.ms);\r
454 break;\r
455\r
456 // cd stuff\r
457 case CHUNK_S68K:\r
458 CHECKED_READ_BUFF(buff_s68k);\r
459 break;\r
460\r
461 case CHUNK_PRG_RAM: CHECKED_READ_BUFF(Pico_mcd->prg_ram); break;\r
462 case CHUNK_WORD_RAM: CHECKED_READ_BUFF(Pico_mcd->word_ram2M); break;\r
463 case CHUNK_PCM_RAM: CHECKED_READ_BUFF(Pico_mcd->pcm_ram); break;\r
464 case CHUNK_BRAM: CHECKED_READ_BUFF(Pico_mcd->bram); break;\r
465 case CHUNK_GA_REGS: CHECKED_READ_BUFF(Pico_mcd->s68k_regs); break;\r
466 case CHUNK_PCM: CHECKED_READ_BUFF(Pico_mcd->pcm); break;\r
467 case CHUNK_CDD: CHECKED_READ_BUFF(Pico_mcd->cdd); break;\r
468 case CHUNK_CDC: CHECKED_READ_BUFF(Pico_mcd->cdc); break;\r
469 case CHUNK_SCD: CHECKED_READ_BUFF(Pico_mcd->scd); break;\r
b4db550e 470 case CHUNK_MISC_CD: CHECKED_READ_BUFF(Pico_mcd->m); break;\r
471\r
ae214f1c 472 case CHUNK_CD_EVT:\r
473 CHECKED_READ_BUFF(buff);\r
474 memcpy(pcd_event_times, buff, sizeof(pcd_event_times));\r
475 break;\r
476\r
a93a80de 477 case CHUNK_CD_GFX:\r
478 CHECKED_READ2(0x18, buff);\r
479 gfx_context_load(buff);\r
480 break;\r
481\r
b4db550e 482 // 32x stuff\r
f3a57b2d 483#ifndef NO_32X\r
b4db550e 484 case CHUNK_MSH2:\r
485 CHECKED_READ_BUFF(buff_sh2);\r
486 sh2_unpack(&sh2s[0], buff_sh2);\r
487 break;\r
488\r
489 case CHUNK_SSH2:\r
490 CHECKED_READ_BUFF(buff_sh2);\r
491 sh2_unpack(&sh2s[1], buff_sh2);\r
492 break;\r
493\r
f81107f5 494 case CHUNK_MSH2_DATA: CHECKED_READ_BUFF(sh2s[0].data_array); break;\r
495 case CHUNK_MSH2_PERI: CHECKED_READ_BUFF(sh2s[0].peri_regs); break;\r
496 case CHUNK_SSH2_DATA: CHECKED_READ_BUFF(sh2s[1].data_array); break;\r
497 case CHUNK_SSH2_PERI: CHECKED_READ_BUFF(sh2s[1].peri_regs); break;\r
b4db550e 498 case CHUNK_32XSYS: CHECKED_READ_BUFF(Pico32x); break;\r
499 case CHUNK_M68K_BIOS: CHECKED_READ_BUFF(Pico32xMem->m68k_rom); break;\r
500 case CHUNK_MSH2_BIOS: CHECKED_READ_BUFF(Pico32xMem->sh2_rom_m); break;\r
501 case CHUNK_SSH2_BIOS: CHECKED_READ_BUFF(Pico32xMem->sh2_rom_s); break;\r
502 case CHUNK_SDRAM: CHECKED_READ_BUFF(Pico32xMem->sdram); break;\r
503 case CHUNK_DRAM: CHECKED_READ_BUFF(Pico32xMem->dram); break;\r
504 case CHUNK_32XPAL: CHECKED_READ_BUFF(Pico32xMem->pal); break;\r
6a98f03e 505\r
506 case CHUNK_32X_EVT:\r
507 CHECKED_READ_BUFF(buff);\r
ae214f1c 508 memcpy(p32x_event_times, buff, sizeof(p32x_event_times));\r
6a98f03e 509 break;\r
f3a57b2d 510#endif\r
b4db550e 511 default:\r
512 if (carthw_chunks != NULL)\r
513 {\r
514 carthw_state_chunk *chwc;\r
515 for (chwc = carthw_chunks; chwc->ptr != NULL; chwc++) {\r
516 if (chwc->chunk == chunk) {\r
517 CHECKED_READ2(chwc->size, chwc->ptr);\r
518 goto breakswitch;\r
519 }\r
520 }\r
521 }\r
522 elprintf(EL_STATUS, "load_state: skipping unknown chunk %i of size %i", chunk, len);\r
523 areaSeek(file, len, SEEK_CUR);\r
524 break;\r
525 }\r
526breakswitch:;\r
527 }\r
528\r
529readend:\r
530 if (PicoAHW & PAHW_SMS)\r
531 PicoStateLoadedMS();\r
532\r
27e26273 533 if (PicoAHW & PAHW_32X)\r
534 Pico32xStateLoaded(1);\r
535\r
03065bb6 536 // must unpack 68k and z80 after banks are set up\r
b4db550e 537 if (!(PicoAHW & PAHW_SMS))\r
538 SekUnpackCpu(buff_m68k, 0);\r
27e26273 539 if (PicoAHW & PAHW_MCD)\r
540 SekUnpackCpu(buff_s68k, 1);\r
b4db550e 541\r
03065bb6 542 z80_unpack(buff_z80);\r
543\r
27e26273 544 // due to dep from 68k cycles..\r
ae214f1c 545 SekCycleAim = SekCycleCnt;\r
b4db550e 546 if (PicoAHW & PAHW_32X)\r
27e26273 547 Pico32xStateLoaded(0);\r
ae214f1c 548 if (PicoAHW & PAHW_MCD)\r
549 {\r
550 SekCycleAimS68k = SekCycleCntS68k;\r
551 pcd_state_loaded();\r
552\r
553 if (!(Pico_mcd->s68k_regs[0x36] & 1) && (Pico_mcd->scd.Status_CDC & 1))\r
554 cdda_start_play();\r
555 }\r
b4db550e 556\r
557 return 0;\r
558}\r
559\r
560static int state_load_gfx(void *file)\r
561{\r
562 int ver, len, found = 0, to_find = 4;\r
563 char buff[8];\r
564\r
565 if (PicoAHW & PAHW_32X)\r
566 to_find += 2;\r
567\r
568 g_read_offs = 0;\r
569 CHECKED_READ(8, buff);\r
570 if (strncmp((char *)buff, "PicoSMCD", 8) && strncmp((char *)buff, "PicoSEXT", 8))\r
571 R_ERROR_RETURN("bad header");\r
572 CHECKED_READ(4, &ver);\r
573\r
574 while (!areaEof(file) && found < to_find)\r
575 {\r
576 CHECKED_READ(1, buff);\r
577 CHECKED_READ(4, &len);\r
578 if (len < 0 || len > 1024*512) R_ERROR_RETURN("bad length");\r
579 if (buff[0] > CHUNK_FM && buff[0] <= CHUNK_MISC_CD && !(PicoAHW & PAHW_MCD))\r
580 R_ERROR_RETURN("cd chunk in non CD state?");\r
581\r
582 switch (buff[0])\r
583 {\r
584 case CHUNK_VRAM: CHECKED_READ_BUFF(Pico.vram); found++; break;\r
585 case CHUNK_CRAM: CHECKED_READ_BUFF(Pico.cram); found++; break;\r
586 case CHUNK_VSRAM: CHECKED_READ_BUFF(Pico.vsram); found++; break;\r
587 case CHUNK_VIDEO: CHECKED_READ_BUFF(Pico.video); found++; break;\r
588\r
f3a57b2d 589#ifndef NO_32X\r
b4db550e 590 case CHUNK_DRAM:\r
591 if (Pico32xMem != NULL)\r
592 CHECKED_READ_BUFF(Pico32xMem->dram);\r
593 break;\r
594\r
595 case CHUNK_32XPAL:\r
596 if (Pico32xMem != NULL)\r
597 CHECKED_READ_BUFF(Pico32xMem->pal);\r
598 Pico32x.dirty_pal = 1;\r
599 break;\r
600\r
601 case CHUNK_32XSYS:\r
602 CHECKED_READ_BUFF(Pico32x);\r
603 break;\r
f3a57b2d 604#endif\r
b4db550e 605 default:\r
606 areaSeek(file, len, SEEK_CUR);\r
607 break;\r
608 }\r
609 }\r
610\r
611readend:\r
612 return 0;\r
613}\r
614\r
86b38dc4 615static int pico_state_internal(void *afile, int is_save)\r
b4db550e 616{\r
b4db550e 617 int ret;\r
618\r
b4db550e 619 if (is_save)\r
620 ret = state_save(afile);\r
621 else {\r
622 ret = state_load(afile);\r
623 if (ret != 0) {\r
624 areaSeek(afile, 0, SEEK_SET);\r
625 ret = state_load_legacy(afile);\r
626 }\r
627\r
628 if (PicoLoadStateHook != NULL)\r
629 PicoLoadStateHook();\r
630 Pico.m.dirtyPal = 1;\r
631 }\r
632\r
86b38dc4 633 return ret;\r
634}\r
635\r
636int PicoState(const char *fname, int is_save)\r
637{\r
638 void *afile = NULL;\r
639 int ret;\r
640\r
641 afile = open_save_file(fname, is_save);\r
642 if (afile == NULL)\r
643 return -1;\r
644\r
645 ret = pico_state_internal(afile, is_save);\r
b4db550e 646 areaClose(afile);\r
647 return ret;\r
648}\r
649\r
86b38dc4 650int PicoStateFP(void *afile, int is_save,\r
651 arearw *read, arearw *write, areaeof *eof, areaseek *seek)\r
652{\r
653 areaRead = read;\r
654 areaWrite = write;\r
655 areaEof = eof;\r
656 areaSeek = seek;\r
657 areaClose = NULL;\r
658\r
659 return pico_state_internal(afile, is_save);\r
660}\r
661\r
b4db550e 662int PicoStateLoadGfx(const char *fname)\r
663{\r
664 void *afile;\r
665 int ret;\r
666\r
667 afile = open_save_file(fname, 0);\r
668 if (afile == NULL)\r
669 return -1;\r
670\r
671 ret = state_load_gfx(afile);\r
672 if (ret != 0) {\r
673 // assume legacy\r
674 areaSeek(afile, 0x10020, SEEK_SET); // skip header and RAM\r
675 areaRead(Pico.vram, 1, sizeof(Pico.vram), afile);\r
676 areaSeek(afile, 0x2000, SEEK_CUR);\r
677 areaRead(Pico.cram, 1, sizeof(Pico.cram), afile);\r
678 areaRead(Pico.vsram, 1, sizeof(Pico.vsram), afile);\r
679 areaSeek(afile, 0x221a0, SEEK_SET);\r
680 areaRead(&Pico.video, 1, sizeof(Pico.video), afile);\r
681 }\r
682 areaClose(afile);\r
683 return 0;\r
684}\r
685\r
686// tmp state\r
687struct PicoTmp\r
688{\r
689 unsigned short vram[0x8000];\r
690 unsigned short cram[0x40];\r
691 unsigned short vsram[0x40];\r
692\r
693 //struct PicoMisc m;\r
694 struct PicoVideo video;\r
695\r
696 struct {\r
697 struct Pico32x p32x;\r
698 unsigned short dram[2][0x20000/2];\r
699 unsigned short pal[0x100];\r
700 } t32x;\r
701};\r
702\r
703// returns data ptr to free() or PicoTmpStateRestore()\r
704void *PicoTmpStateSave(void)\r
705{\r
706 // gfx only for now\r
707 struct PicoTmp *t = malloc(sizeof(*t));\r
708 if (t == NULL)\r
709 return NULL;\r
710\r
711 memcpy(t->vram, Pico.vram, sizeof(Pico.vram));\r
712 memcpy(t->cram, Pico.cram, sizeof(Pico.cram));\r
713 memcpy(t->vsram, Pico.vsram, sizeof(Pico.vsram));\r
714 memcpy(&t->video, &Pico.video, sizeof(Pico.video));\r
715\r
f3a57b2d 716#ifndef NO_32X\r
b4db550e 717 if (PicoAHW & PAHW_32X) {\r
718 memcpy(&t->t32x.p32x, &Pico32x, sizeof(Pico32x));\r
719 memcpy(t->t32x.dram, Pico32xMem->dram, sizeof(Pico32xMem->dram));\r
720 memcpy(t->t32x.pal, Pico32xMem->pal, sizeof(Pico32xMem->pal));\r
721 }\r
f3a57b2d 722#endif\r
b4db550e 723\r
724 return t;\r
725}\r
726\r
727void PicoTmpStateRestore(void *data)\r
728{\r
729 struct PicoTmp *t = data;\r
730 if (t == NULL)\r
731 return;\r
732\r
733 memcpy(Pico.vram, t->vram, sizeof(Pico.vram));\r
734 memcpy(Pico.cram, t->cram, sizeof(Pico.cram));\r
735 memcpy(Pico.vsram, t->vsram, sizeof(Pico.vsram));\r
736 memcpy(&Pico.video, &t->video, sizeof(Pico.video));\r
737 Pico.m.dirtyPal = 1;\r
738\r
f3a57b2d 739#ifndef NO_32X\r
b4db550e 740 if (PicoAHW & PAHW_32X) {\r
741 memcpy(&Pico32x, &t->t32x.p32x, sizeof(Pico32x));\r
742 memcpy(Pico32xMem->dram, t->t32x.dram, sizeof(Pico32xMem->dram));\r
743 memcpy(Pico32xMem->pal, t->t32x.pal, sizeof(Pico32xMem->pal));\r
744 Pico32x.dirty_pal = 1;\r
745 }\r
f3a57b2d 746#endif\r
b4db550e 747}\r
748\r
ed4402a7 749// vim:shiftwidth=2:ts=2:expandtab\r
fast MegaDrive/MegaCD/32X emulator