2823a4c8 |
1 | /* gameplaySP |
2 | * |
3 | * Copyright (C) 2006 Exophase <exophase@gmail.com> |
4 | * |
5 | * This program is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU General Public License as |
7 | * published by the Free Software Foundation; either version 2 of |
8 | * the License, or (at your option) any later version. |
9 | * |
10 | * This program is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU General Public License |
16 | * along with this program; if not, write to the Free Software |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
18 | */ |
19 | |
20 | #include "common.h" |
21 | |
22 | #ifdef PSP_BUILD |
23 | |
24 | //PSP_MODULE_INFO("gpSP", 0x1000, 0, 6); |
25 | //PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER); |
26 | |
27 | void vblank_interrupt_handler(u32 sub, u32 *parg); |
28 | |
29 | #endif |
30 | |
31 | timer_type timer[4]; |
32 | |
33 | //debug_state current_debug_state = COUNTDOWN_BREAKPOINT; |
34 | //debug_state current_debug_state = PC_BREAKPOINT; |
35 | u32 breakpoint_value = 0x7c5000; |
36 | debug_state current_debug_state = RUN; |
37 | //debug_state current_debug_state = STEP_RUN; |
38 | |
39 | //u32 breakpoint_value = 0; |
40 | |
41 | frameskip_type current_frameskip_type = auto_frameskip; |
42 | u32 global_cycles_per_instruction = 1; |
43 | u32 random_skip = 0; |
ee0a3871 |
44 | u32 fps_debug = 0; |
2823a4c8 |
45 | |
2823a4c8 |
46 | u32 frameskip_value = 2; |
47 | |
2823a4c8 |
48 | u64 last_frame_interval_timestamp; |
2823a4c8 |
49 | |
2823a4c8 |
50 | u32 skip_next_frame = 0; |
51 | |
52 | u32 frameskip_counter = 0; |
53 | |
54 | u32 cpu_ticks = 0; |
55 | u32 frame_ticks = 0; |
56 | |
57 | u32 execute_cycles = 960; |
58 | s32 video_count = 960; |
59 | u32 ticks; |
60 | |
61 | u32 arm_frame = 0; |
62 | u32 thumb_frame = 0; |
63 | u32 last_frame = 0; |
64 | |
65 | u32 cycle_memory_access = 0; |
66 | u32 cycle_pc_relative_access = 0; |
67 | u32 cycle_sp_relative_access = 0; |
68 | u32 cycle_block_memory_access = 0; |
69 | u32 cycle_block_memory_sp_access = 0; |
70 | u32 cycle_block_memory_words = 0; |
71 | u32 cycle_dma16_words = 0; |
72 | u32 cycle_dma32_words = 0; |
73 | u32 flush_ram_count = 0; |
74 | u32 gbc_update_count = 0; |
75 | u32 oam_update_count = 0; |
76 | |
77 | u32 synchronize_flag = 1; |
78 | |
79 | u32 update_backup_flag = 1; |
90206450 |
80 | #ifdef GP2X_BUILD |
81 | u32 clock_speed = 200; |
82 | #else |
2823a4c8 |
83 | u32 clock_speed = 333; |
90206450 |
84 | #endif |
bbba3209 |
85 | char main_path[512]; |
2823a4c8 |
86 | |
87 | void trigger_ext_event(); |
88 | |
89 | #define check_count(count_var) \ |
90 | if(count_var < execute_cycles) \ |
91 | execute_cycles = count_var; \ |
92 | |
93 | #define check_timer(timer_number) \ |
94 | if(timer[timer_number].status == TIMER_PRESCALE) \ |
95 | check_count(timer[timer_number].count); \ |
96 | |
97 | #define update_timer(timer_number) \ |
98 | if(timer[timer_number].status != TIMER_INACTIVE) \ |
99 | { \ |
100 | if(timer[timer_number].status != TIMER_CASCADE) \ |
101 | { \ |
102 | timer[timer_number].count -= execute_cycles; \ |
103 | io_registers[REG_TM##timer_number##D] = \ |
104 | -(timer[timer_number].count >> timer[timer_number].prescale); \ |
105 | } \ |
106 | \ |
107 | if(timer[timer_number].count <= 0) \ |
108 | { \ |
109 | if(timer[timer_number].irq == TIMER_TRIGGER_IRQ) \ |
110 | irq_raised |= IRQ_TIMER##timer_number; \ |
111 | \ |
112 | if((timer_number != 3) && \ |
113 | (timer[timer_number + 1].status == TIMER_CASCADE)) \ |
114 | { \ |
115 | timer[timer_number + 1].count--; \ |
116 | io_registers[REG_TM0D + (timer_number + 1) * 2] = \ |
117 | -(timer[timer_number + 1].count); \ |
118 | } \ |
119 | \ |
120 | if(timer_number < 2) \ |
121 | { \ |
122 | if(timer[timer_number].direct_sound_channels & 0x01) \ |
123 | sound_timer(timer[timer_number].frequency_step, 0); \ |
124 | \ |
125 | if(timer[timer_number].direct_sound_channels & 0x02) \ |
126 | sound_timer(timer[timer_number].frequency_step, 1); \ |
127 | } \ |
128 | \ |
129 | timer[timer_number].count += \ |
130 | (timer[timer_number].reload << timer[timer_number].prescale); \ |
131 | } \ |
132 | } \ |
133 | |
bbba3209 |
134 | static const char *file_ext[] = { ".gba", ".bin", ".zip", NULL }; |
2823a4c8 |
135 | |
ffc30d25 |
136 | #ifndef PSP_BUILD |
d40aa461 |
137 | static void ChangeWorkingDirectory(char *exe) |
2823a4c8 |
138 | { |
139 | #ifndef _WIN32_WCE |
140 | char *s = strrchr(exe, '/'); |
141 | if (s != NULL) { |
142 | *s = '\0'; |
143 | chdir(exe); |
144 | *s = '/'; |
145 | } |
146 | #endif |
147 | } |
d40aa461 |
148 | |
149 | static void switch_to_romdir(void) |
150 | { |
151 | char buff[256]; |
152 | int r; |
153 | |
154 | file_open(romdir_file, "romdir.txt", read); |
155 | |
156 | if(file_check_valid(romdir_file)) |
157 | { |
158 | r = file_read(romdir_file, buff, sizeof(buff) - 1); |
159 | if (r > 0) |
160 | { |
161 | buff[r] = 0; |
162 | while (r > 0 && isspace(buff[r-1])) |
163 | buff[--r] = 0; |
164 | chdir(buff); |
165 | } |
166 | file_close(romdir_file); |
167 | } |
168 | } |
169 | |
170 | static void save_romdir(void) |
171 | { |
172 | char buff[512]; |
d40aa461 |
173 | |
174 | snprintf(buff, sizeof(buff), "%s" PATH_SEPARATOR "romdir.txt", main_path); |
175 | file_open(romdir_file, buff, write); |
176 | |
177 | if(file_check_valid(romdir_file)) |
178 | { |
179 | if (getcwd(buff, sizeof(buff))) |
180 | { |
181 | file_write(romdir_file, buff, strlen(buff)); |
182 | } |
183 | file_close(romdir_file); |
184 | } |
185 | } |
186 | #else |
187 | void ChangeWorkingDirectory(char *exe) {} |
188 | static void switch_to_romdir(void) {} |
189 | static void save_romdir(void) {} |
2823a4c8 |
190 | #endif |
191 | |
192 | void init_main() |
193 | { |
194 | u32 i; |
195 | |
196 | skip_next_frame = 0; |
197 | |
198 | for(i = 0; i < 4; i++) |
199 | { |
200 | dma[i].start_type = DMA_INACTIVE; |
201 | dma[i].direct_sound_channel = DMA_NO_DIRECT_SOUND; |
202 | timer[i].status = TIMER_INACTIVE; |
203 | timer[i].reload = 0x10000; |
204 | timer[i].stop_cpu_ticks = 0; |
205 | } |
206 | |
207 | timer[0].direct_sound_channels = TIMER_DS_CHANNEL_BOTH; |
208 | timer[1].direct_sound_channels = TIMER_DS_CHANNEL_NONE; |
209 | |
210 | cpu_ticks = 0; |
211 | frame_ticks = 0; |
212 | |
213 | execute_cycles = 960; |
214 | video_count = 960; |
215 | |
216 | flush_translation_cache_rom(); |
217 | flush_translation_cache_ram(); |
218 | flush_translation_cache_bios(); |
219 | } |
220 | |
221 | int main(int argc, char *argv[]) |
222 | { |
d0944fc9 |
223 | char bios_filename[512]; |
224 | int ret; |
225 | |
2823a4c8 |
226 | #ifdef PSP_BUILD |
227 | sceKernelRegisterSubIntrHandler(PSP_VBLANK_INT, 0, |
228 | vblank_interrupt_handler, NULL); |
229 | sceKernelEnableSubIntr(PSP_VBLANK_INT, 0); |
2823a4c8 |
230 | #endif |
231 | |
2823a4c8 |
232 | init_gamepak_buffer(); |
233 | |
234 | // Copy the directory path of the executable into main_path |
235 | |
2823a4c8 |
236 | // ChangeWorkingDirectory will null out the filename out of the path |
237 | ChangeWorkingDirectory(argv[0]); |
2823a4c8 |
238 | |
239 | getcwd(main_path, 512); |
2823a4c8 |
240 | |
241 | #ifdef PSP_BUILD |
242 | delay_us(2500000); |
243 | #endif |
244 | |
43c24b30 |
245 | #ifndef PC_BUILD |
246 | gpsp_plat_init(); |
2823a4c8 |
247 | #endif |
eb3668fc |
248 | load_config_file(); |
249 | |
250 | gamepak_filename[0] = 0; |
2823a4c8 |
251 | |
4cdfc0bc |
252 | init_video(); |
253 | |
d0944fc9 |
254 | sprintf(bios_filename, "%s" PATH_SEPARATOR "%s", main_path, "gba_bios.bin"); |
255 | ret = load_bios(bios_filename); |
256 | if (ret != 0) |
257 | ret = load_bios("gba_bios.bin"); |
258 | if (ret != 0) |
2823a4c8 |
259 | { |
260 | gui_action_type gui_action = CURSOR_NONE; |
261 | |
262 | debug_screen_start(); |
263 | debug_screen_printl("Sorry, but gpSP requires a Gameboy Advance BIOS "); |
264 | debug_screen_printl("image to run correctly. Make sure to get an "); |
265 | debug_screen_printl("authentic one, it'll be exactly 16384 bytes large "); |
266 | debug_screen_printl("and should have the following md5sum value: "); |
267 | debug_screen_printl(" "); |
268 | debug_screen_printl("a860e8c0b6d573d191e4ec7db1b1e4f6 "); |
269 | debug_screen_printl(" "); |
270 | debug_screen_printl("When you do get it name it gba_bios.bin and put it"); |
eb3668fc |
271 | #ifdef PND_BUILD |
ffc30d25 |
272 | debug_screen_printl("in <SD card>/pandora/appdata/gpsp/ . "); |
eb3668fc |
273 | #else |
2823a4c8 |
274 | debug_screen_printl("in the same directory as gpSP. "); |
eb3668fc |
275 | #endif |
2823a4c8 |
276 | debug_screen_printl(" "); |
277 | debug_screen_printl("Press any button to exit. "); |
278 | |
279 | debug_screen_update(); |
280 | |
281 | while(gui_action == CURSOR_NONE) |
282 | { |
283 | gui_action = get_gui_input(); |
284 | delay_us(15000); |
285 | } |
286 | |
287 | debug_screen_end(); |
288 | |
289 | quit(); |
290 | } |
291 | |
292 | if(bios_rom[0] != 0x18) |
293 | { |
294 | gui_action_type gui_action = CURSOR_NONE; |
295 | |
296 | debug_screen_start(); |
297 | debug_screen_printl("You have an incorrect BIOS image. "); |
298 | debug_screen_printl("While many games will work fine, some will not. It"); |
299 | debug_screen_printl("is strongly recommended that you obtain the "); |
300 | debug_screen_printl("correct BIOS file. Do NOT report any bugs if you "); |
301 | debug_screen_printl("are seeing this message. "); |
302 | debug_screen_printl(" "); |
303 | debug_screen_printl("Press any button to resume, at your own risk. "); |
304 | |
305 | debug_screen_update(); |
306 | |
307 | while(gui_action == CURSOR_NONE) |
308 | { |
309 | gui_action = get_gui_input(); |
310 | delay_us(15000); |
311 | } |
312 | |
313 | debug_screen_end(); |
314 | } |
315 | |
316 | init_main(); |
40a392b0 |
317 | init_sound(1); |
2823a4c8 |
318 | |
319 | init_input(); |
320 | |
321 | video_resolution_large(); |
322 | |
323 | if(argc > 1) |
324 | { |
325 | if(load_gamepak(argv[1]) == -1) |
326 | { |
43c24b30 |
327 | #ifndef PSP_BUILD |
bbba3209 |
328 | printf("Failed to load gamepak %s, exiting.\n", argv[1]); |
2823a4c8 |
329 | #endif |
330 | exit(-1); |
331 | } |
332 | |
333 | set_gba_resolution(screen_scale); |
334 | video_resolution_small(); |
335 | |
336 | init_cpu(); |
337 | init_memory(); |
338 | } |
339 | else |
340 | { |
bbba3209 |
341 | char load_filename[512]; |
ffc30d25 |
342 | switch_to_romdir(); |
2823a4c8 |
343 | if(load_file(file_ext, load_filename) == -1) |
344 | { |
345 | menu(copy_screen()); |
346 | } |
347 | else |
348 | { |
349 | if(load_gamepak(load_filename) == -1) |
350 | { |
43c24b30 |
351 | #ifndef PSP_BUILD |
2823a4c8 |
352 | printf("Failed to load gamepak %s, exiting.\n", load_filename); |
353 | #endif |
354 | exit(-1); |
355 | } |
356 | |
1d02ca75 |
357 | set_clock_speed(); |
2823a4c8 |
358 | set_gba_resolution(screen_scale); |
359 | video_resolution_small(); |
360 | |
361 | init_cpu(); |
362 | init_memory(); |
363 | } |
364 | } |
365 | |
366 | last_frame = 0; |
367 | |
368 | // We'll never actually return from here. |
369 | |
370 | #ifdef PSP_BUILD |
371 | execute_arm_translate(execute_cycles); |
372 | #else |
373 | |
2823a4c8 |
374 | /* u8 current_savestate_filename[512]; |
375 | get_savestate_filename_noshot(savestate_slot, |
376 | current_savestate_filename); |
377 | load_state(current_savestate_filename); */ |
378 | |
90206450 |
379 | // debug_on(); |
2823a4c8 |
380 | |
381 | if(argc > 2) |
382 | { |
383 | current_debug_state = COUNTDOWN_BREAKPOINT; |
384 | breakpoint_value = strtol(argv[2], NULL, 16); |
385 | } |
386 | |
387 | trigger_ext_event(); |
388 | |
389 | execute_arm_translate(execute_cycles); |
390 | execute_arm(execute_cycles); |
391 | #endif |
392 | return 0; |
393 | } |
394 | |
395 | void print_memory_stats(u32 *counter, u32 *region_stats, char *stats_str) |
396 | { |
397 | u32 other_region_counter = region_stats[0x1] + region_stats[0xE] + |
398 | region_stats[0xF]; |
399 | u32 rom_region_counter = region_stats[0x8] + region_stats[0x9] + |
400 | region_stats[0xA] + region_stats[0xB] + region_stats[0xC] + |
401 | region_stats[0xD]; |
402 | u32 _counter = *counter; |
403 | |
404 | printf("memory access stats: %s (out of %d)\n", stats_str, _counter); |
405 | printf("bios: %f%%\tiwram: %f%%\tewram: %f%%\tvram: %f\n", |
406 | region_stats[0x0] * 100.0 / _counter, region_stats[0x3] * 100.0 / |
407 | _counter, |
408 | region_stats[0x2] * 100.0 / _counter, region_stats[0x6] * 100.0 / |
409 | _counter); |
410 | |
411 | printf("oam: %f%%\tpalette: %f%%\trom: %f%%\tother: %f%%\n", |
412 | region_stats[0x7] * 100.0 / _counter, region_stats[0x5] * 100.0 / |
413 | _counter, |
414 | rom_region_counter * 100.0 / _counter, other_region_counter * 100.0 / |
415 | _counter); |
416 | |
417 | *counter = 0; |
418 | memset(region_stats, 0, sizeof(u32) * 16); |
419 | } |
420 | |
421 | u32 event_cycles = 0; |
422 | const u32 event_cycles_trigger = 60 * 5; |
423 | u32 no_alpha = 0; |
424 | |
425 | void trigger_ext_event() |
426 | { |
427 | static u32 event_number = 0; |
428 | static u64 benchmark_ticks[16]; |
429 | u64 new_ticks; |
bbba3209 |
430 | char current_savestate_filename[512]; |
2823a4c8 |
431 | |
432 | return; |
433 | |
434 | if(event_number) |
435 | { |
436 | get_ticks_us(&new_ticks); |
437 | benchmark_ticks[event_number - 1] = |
438 | new_ticks - benchmark_ticks[event_number - 1]; |
439 | } |
440 | |
441 | current_frameskip_type = no_frameskip; |
442 | no_alpha = 0; |
443 | synchronize_flag = 0; |
444 | |
445 | get_savestate_filename_noshot(savestate_slot, |
446 | current_savestate_filename); |
447 | load_state(current_savestate_filename); |
448 | |
449 | switch(event_number) |
450 | { |
451 | case 0: |
452 | // Full benchmark, run normally |
453 | break; |
454 | |
455 | case 1: |
456 | // No alpha blending |
457 | no_alpha = 1; |
458 | break; |
459 | |
460 | case 2: |
461 | // No video benchmark |
462 | // Set frameskip really high + manual |
463 | current_frameskip_type = manual_frameskip; |
464 | frameskip_value = 1000000; |
465 | break; |
466 | |
467 | case 3: |
468 | // No CPU benchmark |
469 | // Put CPU in halt mode, put it in IRQ mode with interrupts off |
470 | reg[CPU_HALT_STATE] = CPU_HALT; |
471 | reg[REG_CPSR] = 0xD2; |
472 | break; |
473 | |
474 | case 4: |
475 | // No CPU or video benchmark |
476 | reg[CPU_HALT_STATE] = CPU_HALT; |
477 | reg[REG_CPSR] = 0xD2; |
478 | current_frameskip_type = manual_frameskip; |
479 | frameskip_value = 1000000; |
480 | break; |
481 | |
482 | case 5: |
483 | { |
484 | // Done |
485 | char *print_strings[] = |
486 | { |
487 | "Full test ", |
488 | "No blending ", |
489 | "No video ", |
490 | "No CPU ", |
491 | "No CPU/video", |
492 | "CPU speed ", |
493 | "Video speed ", |
494 | "Alpha cost " |
495 | }; |
496 | u32 i; |
497 | |
498 | benchmark_ticks[6] = benchmark_ticks[0] - benchmark_ticks[2]; |
499 | benchmark_ticks[5] = benchmark_ticks[0] - benchmark_ticks[4] - |
500 | benchmark_ticks[6]; |
501 | benchmark_ticks[7] = benchmark_ticks[0] - benchmark_ticks[1]; |
502 | |
503 | printf("Benchmark results (%d frames): \n", event_cycles_trigger); |
504 | for(i = 0; i < 8; i++) |
505 | { |
506 | printf(" %s: %d ms (%f ms per frame)\n", |
507 | print_strings[i], (u32)benchmark_ticks[i] / 1000, |
508 | (float)(benchmark_ticks[i] / (1000.0 * event_cycles_trigger))); |
509 | if(i == 4) |
510 | printf("\n"); |
511 | } |
512 | quit(); |
513 | } |
514 | } |
515 | |
516 | event_cycles = 0; |
517 | |
518 | get_ticks_us(benchmark_ticks + event_number); |
519 | event_number++; |
520 | } |
521 | |
42c81190 |
522 | static u32 fps = 60; |
523 | static u32 frames_drawn = 60; |
524 | |
2823a4c8 |
525 | u32 update_gba() |
526 | { |
527 | irq_type irq_raised = IRQ_NONE; |
528 | |
529 | do |
530 | { |
531 | cpu_ticks += execute_cycles; |
532 | |
533 | reg[CHANGED_PC_STATUS] = 0; |
534 | |
535 | if(gbc_sound_update) |
536 | { |
537 | gbc_update_count++; |
538 | update_gbc_sound(cpu_ticks); |
539 | gbc_sound_update = 0; |
540 | } |
541 | |
542 | update_timer(0); |
543 | update_timer(1); |
544 | update_timer(2); |
545 | update_timer(3); |
546 | |
547 | video_count -= execute_cycles; |
548 | |
549 | if(video_count <= 0) |
550 | { |
551 | u32 vcount = io_registers[REG_VCOUNT]; |
552 | u32 dispstat = io_registers[REG_DISPSTAT]; |
553 | |
554 | if((dispstat & 0x02) == 0) |
555 | { |
556 | // Transition from hrefresh to hblank |
557 | video_count += (272); |
558 | dispstat |= 0x02; |
559 | |
560 | if((dispstat & 0x01) == 0) |
561 | { |
562 | u32 i; |
563 | if(oam_update) |
564 | oam_update_count++; |
565 | |
566 | if(no_alpha) |
567 | io_registers[REG_BLDCNT] = 0; |
568 | update_scanline(); |
569 | |
570 | // If in visible area also fire HDMA |
571 | for(i = 0; i < 4; i++) |
572 | { |
573 | if(dma[i].start_type == DMA_START_HBLANK) |
574 | dma_transfer(dma + i); |
575 | } |
576 | } |
577 | |
578 | if(dispstat & 0x10) |
579 | irq_raised |= IRQ_HBLANK; |
580 | } |
581 | else |
582 | { |
583 | // Transition from hblank to next line |
584 | video_count += 960; |
585 | dispstat &= ~0x02; |
586 | |
587 | vcount++; |
588 | |
589 | if(vcount == 160) |
590 | { |
591 | // Transition from vrefresh to vblank |
592 | u32 i; |
593 | |
594 | dispstat |= 0x01; |
595 | if(dispstat & 0x8) |
596 | { |
597 | irq_raised |= IRQ_VBLANK; |
598 | } |
599 | |
600 | affine_reference_x[0] = |
601 | (s32)(address32(io_registers, 0x28) << 4) >> 4; |
602 | affine_reference_y[0] = |
603 | (s32)(address32(io_registers, 0x2C) << 4) >> 4; |
604 | affine_reference_x[1] = |
605 | (s32)(address32(io_registers, 0x38) << 4) >> 4; |
606 | affine_reference_y[1] = |
607 | (s32)(address32(io_registers, 0x3C) << 4) >> 4; |
608 | |
609 | for(i = 0; i < 4; i++) |
610 | { |
611 | if(dma[i].start_type == DMA_START_VBLANK) |
612 | dma_transfer(dma + i); |
613 | } |
614 | } |
615 | else |
616 | |
617 | if(vcount == 228) |
618 | { |
619 | // Transition from vblank to next screen |
620 | dispstat &= ~0x01; |
621 | frame_ticks++; |
622 | |
623 | #ifdef PC_BUILD |
d0944fc9 |
624 | /* printf("frame update (%x), %d instructions total, %d RAM flushes\n", |
2823a4c8 |
625 | reg[REG_PC], instruction_count - last_frame, flush_ram_count); |
626 | last_frame = instruction_count; |
d0944fc9 |
627 | */ |
2823a4c8 |
628 | /* printf("%d gbc audio updates\n", gbc_update_count); |
629 | printf("%d oam updates\n", oam_update_count); */ |
630 | gbc_update_count = 0; |
631 | oam_update_count = 0; |
632 | flush_ram_count = 0; |
633 | #endif |
634 | |
635 | if(update_input()) |
636 | continue; |
637 | |
638 | update_gbc_sound(cpu_ticks); |
42c81190 |
639 | |
ee0a3871 |
640 | if(fps_debug) |
42c81190 |
641 | { |
642 | char print_buffer[32]; |
43c24b30 |
643 | sprintf(print_buffer, "%2d (%2d)", fps, frames_drawn); |
42c81190 |
644 | print_string(print_buffer, 0xFFFF, 0x000, 0, 0); |
645 | } |
43c24b30 |
646 | if(!synchronize_flag) |
647 | print_string("-FF-", 0xFFFF, 0x000, 216, 0); |
2823a4c8 |
648 | |
649 | update_screen(); |
650 | |
42c81190 |
651 | synchronize(); |
652 | |
2823a4c8 |
653 | if(update_backup_flag) |
654 | update_backup(); |
655 | |
656 | process_cheats(); |
657 | |
658 | event_cycles++; |
659 | if(event_cycles == event_cycles_trigger) |
660 | { |
661 | trigger_ext_event(); |
662 | continue; |
663 | } |
664 | |
665 | vcount = 0; |
666 | } |
667 | |
668 | if(vcount == (dispstat >> 8)) |
669 | { |
670 | // vcount trigger |
671 | dispstat |= 0x04; |
672 | if(dispstat & 0x20) |
673 | { |
674 | irq_raised |= IRQ_VCOUNT; |
675 | } |
676 | } |
677 | else |
678 | { |
679 | dispstat &= ~0x04; |
680 | } |
681 | |
682 | io_registers[REG_VCOUNT] = vcount; |
683 | } |
684 | io_registers[REG_DISPSTAT] = dispstat; |
685 | } |
686 | |
687 | if(irq_raised) |
688 | raise_interrupt(irq_raised); |
689 | |
690 | execute_cycles = video_count; |
691 | |
692 | check_timer(0); |
693 | check_timer(1); |
694 | check_timer(2); |
695 | check_timer(3); |
696 | } while(reg[CPU_HALT_STATE] != CPU_ACTIVE); |
697 | |
698 | return execute_cycles; |
699 | } |
700 | |
2823a4c8 |
701 | #ifdef PSP_BUILD |
702 | |
703 | u32 real_frame_count = 0; |
704 | u32 virtual_frame_count = 0; |
705 | u32 num_skipped_frames = 0; |
706 | |
707 | void vblank_interrupt_handler(u32 sub, u32 *parg) |
708 | { |
709 | real_frame_count++; |
710 | } |
711 | |
712 | void synchronize() |
713 | { |
714 | char char_buffer[64]; |
715 | u64 new_ticks, time_delta; |
716 | s32 used_frameskip = frameskip_value; |
717 | |
718 | if(!synchronize_flag) |
719 | { |
2823a4c8 |
720 | used_frameskip = 4; |
721 | virtual_frame_count = real_frame_count - 1; |
722 | } |
723 | |
724 | skip_next_frame = 0; |
725 | |
726 | virtual_frame_count++; |
727 | |
728 | if(real_frame_count >= virtual_frame_count) |
729 | { |
730 | if((real_frame_count > virtual_frame_count) && |
731 | (current_frameskip_type == auto_frameskip) && |
732 | (num_skipped_frames < frameskip_value)) |
733 | { |
734 | skip_next_frame = 1; |
735 | num_skipped_frames++; |
736 | } |
737 | else |
738 | { |
739 | virtual_frame_count = real_frame_count; |
740 | num_skipped_frames = 0; |
741 | } |
742 | |
743 | // Here so that the home button return will eventually work. |
744 | // If it's not running fullspeed anyway this won't really hurt |
745 | // it much more. |
746 | |
747 | delay_us(1); |
748 | } |
749 | else |
750 | { |
751 | if(synchronize_flag) |
752 | sceDisplayWaitVblankStart(); |
753 | } |
754 | |
755 | if(current_frameskip_type == manual_frameskip) |
756 | { |
757 | frameskip_counter = (frameskip_counter + 1) % |
758 | (used_frameskip + 1); |
759 | if(random_skip) |
760 | { |
761 | if(frameskip_counter != (rand() % (used_frameskip + 1))) |
762 | skip_next_frame = 1; |
763 | } |
764 | else |
765 | { |
766 | if(frameskip_counter) |
767 | skip_next_frame = 1; |
768 | } |
769 | } |
770 | |
771 | /* sprintf(char_buffer, "%08d %08d %d %d %d\n", |
772 | real_frame_count, virtual_frame_count, num_skipped_frames, |
773 | real_frame_count - virtual_frame_count, skip_next_frame); |
774 | print_string(char_buffer, 0xFFFF, 0x0000, 0, 10); */ |
775 | |
776 | /* |
777 | sprintf(char_buffer, "%02d %02d %06d %07d", frameskip, (u32)ms_needed, |
778 | ram_translation_ptr - ram_translation_cache, rom_translation_ptr - |
779 | rom_translation_cache); |
780 | print_string(char_buffer, 0xFFFF, 0x0000, 0, 0); |
781 | */ |
782 | } |
783 | |
2455b6a3 |
784 | #else |
2823a4c8 |
785 | |
786 | u32 real_frame_count = 0; |
787 | u32 virtual_frame_count = 0; |
788 | u32 num_skipped_frames = 0; |
789 | u32 interval_skipped_frames; |
790 | u32 frames; |
791 | |
2823a4c8 |
792 | const u32 frame_interval = 60; |
793 | |
794 | void synchronize() |
795 | { |
796 | u64 new_ticks; |
797 | u64 time_delta; |
2823a4c8 |
798 | |
799 | get_ticks_us(&new_ticks); |
2823a4c8 |
800 | |
801 | skip_next_frame = 0; |
802 | virtual_frame_count++; |
803 | |
2455b6a3 |
804 | real_frame_count = (new_ticks * 3) / 50000; |
2823a4c8 |
805 | |
806 | if(real_frame_count >= virtual_frame_count) |
807 | { |
808 | if((real_frame_count > virtual_frame_count) && |
809 | (current_frameskip_type == auto_frameskip) && |
810 | (num_skipped_frames < frameskip_value)) |
811 | { |
812 | skip_next_frame = 1; |
813 | num_skipped_frames++; |
814 | } |
815 | else |
816 | { |
817 | virtual_frame_count = real_frame_count; |
818 | num_skipped_frames = 0; |
819 | } |
820 | } |
2455b6a3 |
821 | else if (synchronize_flag) |
822 | { |
823 | #if defined(PND_BUILD) |
824 | fb_wait_vsync(); |
825 | #elif !defined(GP2X_BUILD) // sleeping on GP2X is a bad idea |
826 | delay_us((u64)virtual_frame_count * 50000 / 3 - new_ticks + 2); |
827 | #endif |
828 | } |
2823a4c8 |
829 | |
830 | frames++; |
831 | |
832 | if(frames == frame_interval) |
833 | { |
834 | u32 new_fps; |
835 | u32 new_frames_drawn; |
836 | |
837 | time_delta = new_ticks - last_frame_interval_timestamp; |
838 | new_fps = (u64)((u64)1000000 * (u64)frame_interval) / time_delta; |
839 | new_frames_drawn = |
840 | (frame_interval - interval_skipped_frames) * (60 / frame_interval); |
841 | |
842 | // Left open for rolling averages |
843 | fps = new_fps; |
844 | frames_drawn = new_frames_drawn; |
845 | |
846 | last_frame_interval_timestamp = new_ticks; |
847 | interval_skipped_frames = 0; |
2823a4c8 |
848 | frames = 0; |
849 | } |
850 | |
851 | if(current_frameskip_type == manual_frameskip) |
852 | { |
853 | frameskip_counter = (frameskip_counter + 1) % |
854 | (frameskip_value + 1); |
855 | if(random_skip) |
856 | { |
857 | if(frameskip_counter != (rand() % (frameskip_value + 1))) |
858 | skip_next_frame = 1; |
859 | } |
860 | else |
861 | { |
862 | if(frameskip_counter) |
863 | skip_next_frame = 1; |
864 | } |
865 | } |
866 | |
867 | interval_skipped_frames += skip_next_frame; |
868 | |
2455b6a3 |
869 | #if !defined(GP2X_BUILD) && !defined(PND_BUILD) |
2823a4c8 |
870 | char char_buffer[64]; |
2455b6a3 |
871 | sprintf(char_buffer, "gpSP: %2d (%2d) fps", fps, frames_drawn); |
2823a4c8 |
872 | SDL_WM_SetCaption(char_buffer, "gpSP"); |
2455b6a3 |
873 | #endif |
2823a4c8 |
874 | } |
875 | |
876 | #endif |
877 | |
878 | void quit() |
879 | { |
d40aa461 |
880 | save_romdir(); |
881 | |
2823a4c8 |
882 | if(!update_backup_flag) |
883 | update_backup_force(); |
884 | |
885 | sound_exit(); |
886 | |
887 | #ifdef REGISTER_USAGE_ANALYZE |
888 | print_register_usage(); |
889 | #endif |
890 | |
891 | #ifdef PSP_BUILD |
892 | sceKernelExitGame(); |
893 | #else |
894 | SDL_Quit(); |
895 | |
43c24b30 |
896 | #ifndef PC_BUILD |
897 | gpsp_plat_quit(); |
2823a4c8 |
898 | #endif |
899 | |
900 | exit(0); |
901 | #endif |
902 | } |
903 | |
904 | void reset_gba() |
905 | { |
906 | init_main(); |
907 | init_memory(); |
908 | init_cpu(); |
909 | reset_sound(); |
910 | } |
911 | |
912 | #ifdef PSP_BUILD |
913 | |
bbba3209 |
914 | u32 file_length(char *filename, s32 dummy) |
2823a4c8 |
915 | { |
916 | SceIoStat stats; |
917 | sceIoGetstat(filename, &stats); |
918 | return stats.st_size; |
919 | } |
920 | |
921 | void delay_us(u32 us_count) |
922 | { |
923 | sceKernelDelayThread(us_count); |
924 | } |
925 | |
926 | void get_ticks_us(u64 *tick_return) |
927 | { |
928 | u64 ticks; |
929 | sceRtcGetCurrentTick(&ticks); |
930 | |
931 | *tick_return = (ticks * 1000000) / sceRtcGetTickResolution(); |
932 | } |
933 | |
934 | #else |
935 | |
bbba3209 |
936 | u32 file_length(char *dummy, FILE *fp) |
2823a4c8 |
937 | { |
938 | u32 length; |
939 | |
940 | fseek(fp, 0, SEEK_END); |
941 | length = ftell(fp); |
942 | fseek(fp, 0, SEEK_SET); |
943 | |
944 | return length; |
945 | } |
946 | |
947 | #ifdef PC_BUILD |
948 | |
949 | void delay_us(u32 us_count) |
950 | { |
951 | SDL_Delay(us_count / 1000); |
952 | } |
953 | |
954 | void get_ticks_us(u64 *ticks_return) |
955 | { |
43c24b30 |
956 | *ticks_return = (u64)SDL_GetTicks() * 1000; |
2823a4c8 |
957 | } |
958 | |
959 | #else |
960 | |
961 | void delay_us(u32 us_count) |
962 | { |
90206450 |
963 | //usleep(us_count); |
964 | SDL_Delay(us_count / 1000); |
2823a4c8 |
965 | } |
966 | |
967 | void get_ticks_us(u64 *ticks_return) |
968 | { |
969 | struct timeval current_time; |
970 | gettimeofday(¤t_time, NULL); |
971 | |
972 | *ticks_return = |
973 | (u64)current_time.tv_sec * 1000000 + current_time.tv_usec; |
974 | } |
975 | |
976 | #endif |
977 | |
978 | #endif |
979 | |
bbba3209 |
980 | void change_ext(const char *src, char *buffer, const char *extension) |
2823a4c8 |
981 | { |
bbba3209 |
982 | char *dot_position; |
2823a4c8 |
983 | strcpy(buffer, src); |
984 | dot_position = strrchr(buffer, '.'); |
985 | |
986 | if(dot_position) |
987 | strcpy(dot_position, extension); |
988 | } |
989 | |
d0944fc9 |
990 | // make path: <main_path>/<romname>.<ext> |
991 | void make_rpath(char *buff, size_t size, const char *ext) |
992 | { |
993 | char *p; |
994 | p = strrchr(gamepak_filename, PATH_SEPARATOR_CHAR); |
995 | if (p == NULL) |
996 | p = gamepak_filename; |
997 | |
998 | snprintf(buff, size, "%s/%s", main_path, p); |
999 | p = strrchr(buff, '.'); |
1000 | if (p != NULL) |
1001 | strcpy(p, ext); |
1002 | } |
1003 | |
2823a4c8 |
1004 | #define main_savestate_builder(type) \ |
1005 | void main_##type##_savestate(file_tag_type savestate_file) \ |
1006 | { \ |
1007 | file_##type##_variable(savestate_file, cpu_ticks); \ |
1008 | file_##type##_variable(savestate_file, execute_cycles); \ |
1009 | file_##type##_variable(savestate_file, video_count); \ |
1010 | file_##type##_array(savestate_file, timer); \ |
1011 | } \ |
1012 | |
1013 | main_savestate_builder(read); |
1014 | main_savestate_builder(write_mem); |
1015 | |
1016 | |
1017 | void printout(void *str, u32 val) |
1018 | { |
1019 | printf(str, val); |
1020 | } |
1d02ca75 |
1021 | |
1022 | void set_clock_speed() |
1023 | { |
1024 | static u32 clock_speed_old = default_clock_speed; |
1025 | if (clock_speed != clock_speed_old) |
1026 | { |
1027 | printf("about to set CPU clock to %iMHz\n", clock_speed); |
1028 | #ifdef PSP_BUILD |
1029 | scePowerSetClockFrequency(clock_speed, clock_speed, clock_speed / 2); |
1030 | #elif defined(GP2X_BUILD) |
1031 | set_FCLK(clock_speed); |
1032 | #endif |
1033 | clock_speed_old = clock_speed; |
1034 | } |
1035 | } |
1036 | |