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; |
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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 |
2823a4c8 |
85 | u8 main_path[512]; |
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 | |
134 | u8 *file_ext[] = { ".gba", ".bin", ".zip", NULL }; |
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 | { |
181 | u32 i; |
182 | u32 vcount = 0; |
183 | u32 ticks; |
184 | u32 dispstat; |
185 | u8 load_filename[512]; |
186 | u8 bios_filename[512]; |
187 | |
2823a4c8 |
188 | #ifdef PSP_BUILD |
189 | sceKernelRegisterSubIntrHandler(PSP_VBLANK_INT, 0, |
190 | vblank_interrupt_handler, NULL); |
191 | sceKernelEnableSubIntr(PSP_VBLANK_INT, 0); |
2823a4c8 |
192 | #endif |
193 | |
194 | extern char *cpu_mode_names[]; |
195 | |
196 | init_gamepak_buffer(); |
197 | |
198 | // Copy the directory path of the executable into main_path |
199 | |
200 | #ifdef ARM_ARCH |
201 | // ChangeWorkingDirectory will null out the filename out of the path |
202 | ChangeWorkingDirectory(argv[0]); |
203 | #endif |
204 | |
205 | getcwd(main_path, 512); |
2823a4c8 |
206 | |
207 | #ifdef PSP_BUILD |
208 | delay_us(2500000); |
209 | #endif |
210 | |
43c24b30 |
211 | #ifndef PC_BUILD |
212 | gpsp_plat_init(); |
2823a4c8 |
213 | #endif |
eb3668fc |
214 | load_config_file(); |
215 | |
216 | gamepak_filename[0] = 0; |
2823a4c8 |
217 | |
4cdfc0bc |
218 | init_video(); |
219 | |
2823a4c8 |
220 | #ifdef GP2X_BUILD |
221 | sprintf(bios_filename, "%s/%s", main_path, "gba_bios.bin"); |
222 | if(load_bios(bios_filename) == -1) |
223 | #else |
224 | if(load_bios("gba_bios.bin") == -1) |
225 | #endif |
226 | { |
227 | gui_action_type gui_action = CURSOR_NONE; |
228 | |
229 | debug_screen_start(); |
230 | debug_screen_printl("Sorry, but gpSP requires a Gameboy Advance BIOS "); |
231 | debug_screen_printl("image to run correctly. Make sure to get an "); |
232 | debug_screen_printl("authentic one, it'll be exactly 16384 bytes large "); |
233 | debug_screen_printl("and should have the following md5sum value: "); |
234 | debug_screen_printl(" "); |
235 | debug_screen_printl("a860e8c0b6d573d191e4ec7db1b1e4f6 "); |
236 | debug_screen_printl(" "); |
237 | debug_screen_printl("When you do get it name it gba_bios.bin and put it"); |
eb3668fc |
238 | #ifdef PND_BUILD |
239 | debug_screen_printl("in <CD card>/pandora/appdata/gpsp/ . "); |
240 | #else |
2823a4c8 |
241 | debug_screen_printl("in the same directory as gpSP. "); |
eb3668fc |
242 | #endif |
2823a4c8 |
243 | debug_screen_printl(" "); |
244 | debug_screen_printl("Press any button to exit. "); |
245 | |
246 | debug_screen_update(); |
247 | |
248 | while(gui_action == CURSOR_NONE) |
249 | { |
250 | gui_action = get_gui_input(); |
251 | delay_us(15000); |
252 | } |
253 | |
254 | debug_screen_end(); |
255 | |
256 | quit(); |
257 | } |
258 | |
259 | if(bios_rom[0] != 0x18) |
260 | { |
261 | gui_action_type gui_action = CURSOR_NONE; |
262 | |
263 | debug_screen_start(); |
264 | debug_screen_printl("You have an incorrect BIOS image. "); |
265 | debug_screen_printl("While many games will work fine, some will not. It"); |
266 | debug_screen_printl("is strongly recommended that you obtain the "); |
267 | debug_screen_printl("correct BIOS file. Do NOT report any bugs if you "); |
268 | debug_screen_printl("are seeing this message. "); |
269 | debug_screen_printl(" "); |
270 | debug_screen_printl("Press any button to resume, at your own risk. "); |
271 | |
272 | debug_screen_update(); |
273 | |
274 | while(gui_action == CURSOR_NONE) |
275 | { |
276 | gui_action = get_gui_input(); |
277 | delay_us(15000); |
278 | } |
279 | |
280 | debug_screen_end(); |
281 | } |
282 | |
283 | init_main(); |
284 | init_sound(); |
285 | |
286 | init_input(); |
287 | |
288 | video_resolution_large(); |
289 | |
290 | if(argc > 1) |
291 | { |
292 | if(load_gamepak(argv[1]) == -1) |
293 | { |
43c24b30 |
294 | #ifndef PSP_BUILD |
2823a4c8 |
295 | printf("Failed to load gamepak %s, exiting.\n", load_filename); |
296 | #endif |
297 | exit(-1); |
298 | } |
299 | |
300 | set_gba_resolution(screen_scale); |
301 | video_resolution_small(); |
302 | |
303 | init_cpu(); |
304 | init_memory(); |
305 | } |
306 | else |
307 | { |
308 | if(load_file(file_ext, load_filename) == -1) |
309 | { |
310 | menu(copy_screen()); |
311 | } |
312 | else |
313 | { |
314 | if(load_gamepak(load_filename) == -1) |
315 | { |
43c24b30 |
316 | #ifndef PSP_BUILD |
2823a4c8 |
317 | printf("Failed to load gamepak %s, exiting.\n", load_filename); |
318 | #endif |
319 | exit(-1); |
320 | } |
321 | |
1d02ca75 |
322 | set_clock_speed(); |
2823a4c8 |
323 | set_gba_resolution(screen_scale); |
324 | video_resolution_small(); |
325 | |
326 | init_cpu(); |
327 | init_memory(); |
328 | } |
329 | } |
330 | |
331 | last_frame = 0; |
332 | |
333 | // We'll never actually return from here. |
334 | |
335 | #ifdef PSP_BUILD |
336 | execute_arm_translate(execute_cycles); |
337 | #else |
338 | |
2823a4c8 |
339 | /* u8 current_savestate_filename[512]; |
340 | get_savestate_filename_noshot(savestate_slot, |
341 | current_savestate_filename); |
342 | load_state(current_savestate_filename); */ |
343 | |
90206450 |
344 | // debug_on(); |
2823a4c8 |
345 | |
346 | if(argc > 2) |
347 | { |
348 | current_debug_state = COUNTDOWN_BREAKPOINT; |
349 | breakpoint_value = strtol(argv[2], NULL, 16); |
350 | } |
351 | |
352 | trigger_ext_event(); |
353 | |
354 | execute_arm_translate(execute_cycles); |
355 | execute_arm(execute_cycles); |
356 | #endif |
357 | return 0; |
358 | } |
359 | |
360 | void print_memory_stats(u32 *counter, u32 *region_stats, char *stats_str) |
361 | { |
362 | u32 other_region_counter = region_stats[0x1] + region_stats[0xE] + |
363 | region_stats[0xF]; |
364 | u32 rom_region_counter = region_stats[0x8] + region_stats[0x9] + |
365 | region_stats[0xA] + region_stats[0xB] + region_stats[0xC] + |
366 | region_stats[0xD]; |
367 | u32 _counter = *counter; |
368 | |
369 | printf("memory access stats: %s (out of %d)\n", stats_str, _counter); |
370 | printf("bios: %f%%\tiwram: %f%%\tewram: %f%%\tvram: %f\n", |
371 | region_stats[0x0] * 100.0 / _counter, region_stats[0x3] * 100.0 / |
372 | _counter, |
373 | region_stats[0x2] * 100.0 / _counter, region_stats[0x6] * 100.0 / |
374 | _counter); |
375 | |
376 | printf("oam: %f%%\tpalette: %f%%\trom: %f%%\tother: %f%%\n", |
377 | region_stats[0x7] * 100.0 / _counter, region_stats[0x5] * 100.0 / |
378 | _counter, |
379 | rom_region_counter * 100.0 / _counter, other_region_counter * 100.0 / |
380 | _counter); |
381 | |
382 | *counter = 0; |
383 | memset(region_stats, 0, sizeof(u32) * 16); |
384 | } |
385 | |
386 | u32 event_cycles = 0; |
387 | const u32 event_cycles_trigger = 60 * 5; |
388 | u32 no_alpha = 0; |
389 | |
390 | void trigger_ext_event() |
391 | { |
392 | static u32 event_number = 0; |
393 | static u64 benchmark_ticks[16]; |
394 | u64 new_ticks; |
395 | u8 current_savestate_filename[512]; |
396 | |
397 | return; |
398 | |
399 | if(event_number) |
400 | { |
401 | get_ticks_us(&new_ticks); |
402 | benchmark_ticks[event_number - 1] = |
403 | new_ticks - benchmark_ticks[event_number - 1]; |
404 | } |
405 | |
406 | current_frameskip_type = no_frameskip; |
407 | no_alpha = 0; |
408 | synchronize_flag = 0; |
409 | |
410 | get_savestate_filename_noshot(savestate_slot, |
411 | current_savestate_filename); |
412 | load_state(current_savestate_filename); |
413 | |
414 | switch(event_number) |
415 | { |
416 | case 0: |
417 | // Full benchmark, run normally |
418 | break; |
419 | |
420 | case 1: |
421 | // No alpha blending |
422 | no_alpha = 1; |
423 | break; |
424 | |
425 | case 2: |
426 | // No video benchmark |
427 | // Set frameskip really high + manual |
428 | current_frameskip_type = manual_frameskip; |
429 | frameskip_value = 1000000; |
430 | break; |
431 | |
432 | case 3: |
433 | // No CPU benchmark |
434 | // Put CPU in halt mode, put it in IRQ mode with interrupts off |
435 | reg[CPU_HALT_STATE] = CPU_HALT; |
436 | reg[REG_CPSR] = 0xD2; |
437 | break; |
438 | |
439 | case 4: |
440 | // No CPU or video benchmark |
441 | reg[CPU_HALT_STATE] = CPU_HALT; |
442 | reg[REG_CPSR] = 0xD2; |
443 | current_frameskip_type = manual_frameskip; |
444 | frameskip_value = 1000000; |
445 | break; |
446 | |
447 | case 5: |
448 | { |
449 | // Done |
450 | char *print_strings[] = |
451 | { |
452 | "Full test ", |
453 | "No blending ", |
454 | "No video ", |
455 | "No CPU ", |
456 | "No CPU/video", |
457 | "CPU speed ", |
458 | "Video speed ", |
459 | "Alpha cost " |
460 | }; |
461 | u32 i; |
462 | |
463 | benchmark_ticks[6] = benchmark_ticks[0] - benchmark_ticks[2]; |
464 | benchmark_ticks[5] = benchmark_ticks[0] - benchmark_ticks[4] - |
465 | benchmark_ticks[6]; |
466 | benchmark_ticks[7] = benchmark_ticks[0] - benchmark_ticks[1]; |
467 | |
468 | printf("Benchmark results (%d frames): \n", event_cycles_trigger); |
469 | for(i = 0; i < 8; i++) |
470 | { |
471 | printf(" %s: %d ms (%f ms per frame)\n", |
472 | print_strings[i], (u32)benchmark_ticks[i] / 1000, |
473 | (float)(benchmark_ticks[i] / (1000.0 * event_cycles_trigger))); |
474 | if(i == 4) |
475 | printf("\n"); |
476 | } |
477 | quit(); |
478 | } |
479 | } |
480 | |
481 | event_cycles = 0; |
482 | |
483 | get_ticks_us(benchmark_ticks + event_number); |
484 | event_number++; |
485 | } |
486 | |
42c81190 |
487 | static u32 fps = 60; |
488 | static u32 frames_drawn = 60; |
489 | |
2823a4c8 |
490 | u32 update_gba() |
491 | { |
492 | irq_type irq_raised = IRQ_NONE; |
493 | |
494 | do |
495 | { |
496 | cpu_ticks += execute_cycles; |
497 | |
498 | reg[CHANGED_PC_STATUS] = 0; |
499 | |
500 | if(gbc_sound_update) |
501 | { |
502 | gbc_update_count++; |
503 | update_gbc_sound(cpu_ticks); |
504 | gbc_sound_update = 0; |
505 | } |
506 | |
507 | update_timer(0); |
508 | update_timer(1); |
509 | update_timer(2); |
510 | update_timer(3); |
511 | |
512 | video_count -= execute_cycles; |
513 | |
514 | if(video_count <= 0) |
515 | { |
516 | u32 vcount = io_registers[REG_VCOUNT]; |
517 | u32 dispstat = io_registers[REG_DISPSTAT]; |
518 | |
519 | if((dispstat & 0x02) == 0) |
520 | { |
521 | // Transition from hrefresh to hblank |
522 | video_count += (272); |
523 | dispstat |= 0x02; |
524 | |
525 | if((dispstat & 0x01) == 0) |
526 | { |
527 | u32 i; |
528 | if(oam_update) |
529 | oam_update_count++; |
530 | |
531 | if(no_alpha) |
532 | io_registers[REG_BLDCNT] = 0; |
533 | update_scanline(); |
534 | |
535 | // If in visible area also fire HDMA |
536 | for(i = 0; i < 4; i++) |
537 | { |
538 | if(dma[i].start_type == DMA_START_HBLANK) |
539 | dma_transfer(dma + i); |
540 | } |
541 | } |
542 | |
543 | if(dispstat & 0x10) |
544 | irq_raised |= IRQ_HBLANK; |
545 | } |
546 | else |
547 | { |
548 | // Transition from hblank to next line |
549 | video_count += 960; |
550 | dispstat &= ~0x02; |
551 | |
552 | vcount++; |
553 | |
554 | if(vcount == 160) |
555 | { |
556 | // Transition from vrefresh to vblank |
557 | u32 i; |
558 | |
559 | dispstat |= 0x01; |
560 | if(dispstat & 0x8) |
561 | { |
562 | irq_raised |= IRQ_VBLANK; |
563 | } |
564 | |
565 | affine_reference_x[0] = |
566 | (s32)(address32(io_registers, 0x28) << 4) >> 4; |
567 | affine_reference_y[0] = |
568 | (s32)(address32(io_registers, 0x2C) << 4) >> 4; |
569 | affine_reference_x[1] = |
570 | (s32)(address32(io_registers, 0x38) << 4) >> 4; |
571 | affine_reference_y[1] = |
572 | (s32)(address32(io_registers, 0x3C) << 4) >> 4; |
573 | |
574 | for(i = 0; i < 4; i++) |
575 | { |
576 | if(dma[i].start_type == DMA_START_VBLANK) |
577 | dma_transfer(dma + i); |
578 | } |
579 | } |
580 | else |
581 | |
582 | if(vcount == 228) |
583 | { |
584 | // Transition from vblank to next screen |
585 | dispstat &= ~0x01; |
586 | frame_ticks++; |
587 | |
588 | #ifdef PC_BUILD |
589 | printf("frame update (%x), %d instructions total, %d RAM flushes\n", |
590 | reg[REG_PC], instruction_count - last_frame, flush_ram_count); |
591 | last_frame = instruction_count; |
592 | |
593 | /* printf("%d gbc audio updates\n", gbc_update_count); |
594 | printf("%d oam updates\n", oam_update_count); */ |
595 | gbc_update_count = 0; |
596 | oam_update_count = 0; |
597 | flush_ram_count = 0; |
598 | #endif |
599 | |
600 | if(update_input()) |
601 | continue; |
602 | |
603 | update_gbc_sound(cpu_ticks); |
42c81190 |
604 | |
ee0a3871 |
605 | if(fps_debug) |
42c81190 |
606 | { |
607 | char print_buffer[32]; |
43c24b30 |
608 | sprintf(print_buffer, "%2d (%2d)", fps, frames_drawn); |
42c81190 |
609 | print_string(print_buffer, 0xFFFF, 0x000, 0, 0); |
610 | } |
43c24b30 |
611 | if(!synchronize_flag) |
612 | print_string("-FF-", 0xFFFF, 0x000, 216, 0); |
2823a4c8 |
613 | |
614 | update_screen(); |
615 | |
42c81190 |
616 | synchronize(); |
617 | |
2823a4c8 |
618 | if(update_backup_flag) |
619 | update_backup(); |
620 | |
621 | process_cheats(); |
622 | |
623 | event_cycles++; |
624 | if(event_cycles == event_cycles_trigger) |
625 | { |
626 | trigger_ext_event(); |
627 | continue; |
628 | } |
629 | |
630 | vcount = 0; |
631 | } |
632 | |
633 | if(vcount == (dispstat >> 8)) |
634 | { |
635 | // vcount trigger |
636 | dispstat |= 0x04; |
637 | if(dispstat & 0x20) |
638 | { |
639 | irq_raised |= IRQ_VCOUNT; |
640 | } |
641 | } |
642 | else |
643 | { |
644 | dispstat &= ~0x04; |
645 | } |
646 | |
647 | io_registers[REG_VCOUNT] = vcount; |
648 | } |
649 | io_registers[REG_DISPSTAT] = dispstat; |
650 | } |
651 | |
652 | if(irq_raised) |
653 | raise_interrupt(irq_raised); |
654 | |
655 | execute_cycles = video_count; |
656 | |
657 | check_timer(0); |
658 | check_timer(1); |
659 | check_timer(2); |
660 | check_timer(3); |
661 | } while(reg[CPU_HALT_STATE] != CPU_ACTIVE); |
662 | |
663 | return execute_cycles; |
664 | } |
665 | |
2823a4c8 |
666 | #ifdef PSP_BUILD |
667 | |
668 | u32 real_frame_count = 0; |
669 | u32 virtual_frame_count = 0; |
670 | u32 num_skipped_frames = 0; |
671 | |
672 | void vblank_interrupt_handler(u32 sub, u32 *parg) |
673 | { |
674 | real_frame_count++; |
675 | } |
676 | |
677 | void synchronize() |
678 | { |
679 | char char_buffer[64]; |
680 | u64 new_ticks, time_delta; |
681 | s32 used_frameskip = frameskip_value; |
682 | |
683 | if(!synchronize_flag) |
684 | { |
2823a4c8 |
685 | used_frameskip = 4; |
686 | virtual_frame_count = real_frame_count - 1; |
687 | } |
688 | |
689 | skip_next_frame = 0; |
690 | |
691 | virtual_frame_count++; |
692 | |
693 | if(real_frame_count >= virtual_frame_count) |
694 | { |
695 | if((real_frame_count > virtual_frame_count) && |
696 | (current_frameskip_type == auto_frameskip) && |
697 | (num_skipped_frames < frameskip_value)) |
698 | { |
699 | skip_next_frame = 1; |
700 | num_skipped_frames++; |
701 | } |
702 | else |
703 | { |
704 | virtual_frame_count = real_frame_count; |
705 | num_skipped_frames = 0; |
706 | } |
707 | |
708 | // Here so that the home button return will eventually work. |
709 | // If it's not running fullspeed anyway this won't really hurt |
710 | // it much more. |
711 | |
712 | delay_us(1); |
713 | } |
714 | else |
715 | { |
716 | if(synchronize_flag) |
717 | sceDisplayWaitVblankStart(); |
718 | } |
719 | |
720 | if(current_frameskip_type == manual_frameskip) |
721 | { |
722 | frameskip_counter = (frameskip_counter + 1) % |
723 | (used_frameskip + 1); |
724 | if(random_skip) |
725 | { |
726 | if(frameskip_counter != (rand() % (used_frameskip + 1))) |
727 | skip_next_frame = 1; |
728 | } |
729 | else |
730 | { |
731 | if(frameskip_counter) |
732 | skip_next_frame = 1; |
733 | } |
734 | } |
735 | |
736 | /* sprintf(char_buffer, "%08d %08d %d %d %d\n", |
737 | real_frame_count, virtual_frame_count, num_skipped_frames, |
738 | real_frame_count - virtual_frame_count, skip_next_frame); |
739 | print_string(char_buffer, 0xFFFF, 0x0000, 0, 10); */ |
740 | |
741 | /* |
742 | sprintf(char_buffer, "%02d %02d %06d %07d", frameskip, (u32)ms_needed, |
743 | ram_translation_ptr - ram_translation_cache, rom_translation_ptr - |
744 | rom_translation_cache); |
745 | print_string(char_buffer, 0xFFFF, 0x0000, 0, 0); |
746 | */ |
747 | } |
748 | |
2455b6a3 |
749 | #else |
2823a4c8 |
750 | |
751 | u32 real_frame_count = 0; |
752 | u32 virtual_frame_count = 0; |
753 | u32 num_skipped_frames = 0; |
754 | u32 interval_skipped_frames; |
755 | u32 frames; |
756 | |
2823a4c8 |
757 | const u32 frame_interval = 60; |
758 | |
759 | void synchronize() |
760 | { |
761 | u64 new_ticks; |
762 | u64 time_delta; |
2823a4c8 |
763 | |
764 | get_ticks_us(&new_ticks); |
2823a4c8 |
765 | |
766 | skip_next_frame = 0; |
767 | virtual_frame_count++; |
768 | |
2455b6a3 |
769 | real_frame_count = (new_ticks * 3) / 50000; |
2823a4c8 |
770 | |
771 | if(real_frame_count >= virtual_frame_count) |
772 | { |
773 | if((real_frame_count > virtual_frame_count) && |
774 | (current_frameskip_type == auto_frameskip) && |
775 | (num_skipped_frames < frameskip_value)) |
776 | { |
777 | skip_next_frame = 1; |
778 | num_skipped_frames++; |
779 | } |
780 | else |
781 | { |
782 | virtual_frame_count = real_frame_count; |
783 | num_skipped_frames = 0; |
784 | } |
785 | } |
2455b6a3 |
786 | else if (synchronize_flag) |
787 | { |
788 | #if defined(PND_BUILD) |
789 | fb_wait_vsync(); |
790 | #elif !defined(GP2X_BUILD) // sleeping on GP2X is a bad idea |
791 | delay_us((u64)virtual_frame_count * 50000 / 3 - new_ticks + 2); |
792 | #endif |
793 | } |
2823a4c8 |
794 | |
795 | frames++; |
796 | |
797 | if(frames == frame_interval) |
798 | { |
799 | u32 new_fps; |
800 | u32 new_frames_drawn; |
801 | |
802 | time_delta = new_ticks - last_frame_interval_timestamp; |
803 | new_fps = (u64)((u64)1000000 * (u64)frame_interval) / time_delta; |
804 | new_frames_drawn = |
805 | (frame_interval - interval_skipped_frames) * (60 / frame_interval); |
806 | |
807 | // Left open for rolling averages |
808 | fps = new_fps; |
809 | frames_drawn = new_frames_drawn; |
810 | |
811 | last_frame_interval_timestamp = new_ticks; |
812 | interval_skipped_frames = 0; |
2823a4c8 |
813 | frames = 0; |
814 | } |
815 | |
816 | if(current_frameskip_type == manual_frameskip) |
817 | { |
818 | frameskip_counter = (frameskip_counter + 1) % |
819 | (frameskip_value + 1); |
820 | if(random_skip) |
821 | { |
822 | if(frameskip_counter != (rand() % (frameskip_value + 1))) |
823 | skip_next_frame = 1; |
824 | } |
825 | else |
826 | { |
827 | if(frameskip_counter) |
828 | skip_next_frame = 1; |
829 | } |
830 | } |
831 | |
832 | interval_skipped_frames += skip_next_frame; |
833 | |
2455b6a3 |
834 | #if !defined(GP2X_BUILD) && !defined(PND_BUILD) |
2823a4c8 |
835 | char char_buffer[64]; |
2455b6a3 |
836 | sprintf(char_buffer, "gpSP: %2d (%2d) fps", fps, frames_drawn); |
2823a4c8 |
837 | SDL_WM_SetCaption(char_buffer, "gpSP"); |
2455b6a3 |
838 | #endif |
2823a4c8 |
839 | } |
840 | |
841 | #endif |
842 | |
843 | void quit() |
844 | { |
845 | if(!update_backup_flag) |
846 | update_backup_force(); |
847 | |
848 | sound_exit(); |
849 | |
850 | #ifdef REGISTER_USAGE_ANALYZE |
851 | print_register_usage(); |
852 | #endif |
853 | |
854 | #ifdef PSP_BUILD |
855 | sceKernelExitGame(); |
856 | #else |
857 | SDL_Quit(); |
858 | |
43c24b30 |
859 | #ifndef PC_BUILD |
860 | gpsp_plat_quit(); |
2823a4c8 |
861 | #endif |
862 | |
863 | exit(0); |
864 | #endif |
865 | } |
866 | |
867 | void reset_gba() |
868 | { |
869 | init_main(); |
870 | init_memory(); |
871 | init_cpu(); |
872 | reset_sound(); |
873 | } |
874 | |
875 | #ifdef PSP_BUILD |
876 | |
877 | u32 file_length(u8 *filename, s32 dummy) |
878 | { |
879 | SceIoStat stats; |
880 | sceIoGetstat(filename, &stats); |
881 | return stats.st_size; |
882 | } |
883 | |
884 | void delay_us(u32 us_count) |
885 | { |
886 | sceKernelDelayThread(us_count); |
887 | } |
888 | |
889 | void get_ticks_us(u64 *tick_return) |
890 | { |
891 | u64 ticks; |
892 | sceRtcGetCurrentTick(&ticks); |
893 | |
894 | *tick_return = (ticks * 1000000) / sceRtcGetTickResolution(); |
895 | } |
896 | |
897 | #else |
898 | |
899 | u32 file_length(u8 *dummy, FILE *fp) |
900 | { |
901 | u32 length; |
902 | |
903 | fseek(fp, 0, SEEK_END); |
904 | length = ftell(fp); |
905 | fseek(fp, 0, SEEK_SET); |
906 | |
907 | return length; |
908 | } |
909 | |
910 | #ifdef PC_BUILD |
911 | |
912 | void delay_us(u32 us_count) |
913 | { |
914 | SDL_Delay(us_count / 1000); |
915 | } |
916 | |
917 | void get_ticks_us(u64 *ticks_return) |
918 | { |
43c24b30 |
919 | *ticks_return = (u64)SDL_GetTicks() * 1000; |
2823a4c8 |
920 | } |
921 | |
922 | #else |
923 | |
924 | void delay_us(u32 us_count) |
925 | { |
90206450 |
926 | //usleep(us_count); |
927 | SDL_Delay(us_count / 1000); |
2823a4c8 |
928 | } |
929 | |
930 | void get_ticks_us(u64 *ticks_return) |
931 | { |
932 | struct timeval current_time; |
933 | gettimeofday(¤t_time, NULL); |
934 | |
935 | *ticks_return = |
936 | (u64)current_time.tv_sec * 1000000 + current_time.tv_usec; |
937 | } |
938 | |
939 | #endif |
940 | |
941 | #endif |
942 | |
943 | void change_ext(u8 *src, u8 *buffer, u8 *extension) |
944 | { |
945 | u8 *dot_position; |
946 | strcpy(buffer, src); |
947 | dot_position = strrchr(buffer, '.'); |
948 | |
949 | if(dot_position) |
950 | strcpy(dot_position, extension); |
951 | } |
952 | |
953 | #define main_savestate_builder(type) \ |
954 | void main_##type##_savestate(file_tag_type savestate_file) \ |
955 | { \ |
956 | file_##type##_variable(savestate_file, cpu_ticks); \ |
957 | file_##type##_variable(savestate_file, execute_cycles); \ |
958 | file_##type##_variable(savestate_file, video_count); \ |
959 | file_##type##_array(savestate_file, timer); \ |
960 | } \ |
961 | |
962 | main_savestate_builder(read); |
963 | main_savestate_builder(write_mem); |
964 | |
965 | |
966 | void printout(void *str, u32 val) |
967 | { |
968 | printf(str, val); |
969 | } |
1d02ca75 |
970 | |
971 | void set_clock_speed() |
972 | { |
973 | static u32 clock_speed_old = default_clock_speed; |
974 | if (clock_speed != clock_speed_old) |
975 | { |
976 | printf("about to set CPU clock to %iMHz\n", clock_speed); |
977 | #ifdef PSP_BUILD |
978 | scePowerSetClockFrequency(clock_speed, clock_speed, clock_speed / 2); |
979 | #elif defined(GP2X_BUILD) |
980 | set_FCLK(clock_speed); |
981 | #endif |
982 | clock_speed_old = clock_speed; |
983 | } |
984 | } |
985 | |