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