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debug bgm player, sound code refactoring
[picodrive.git] / platform / psp / emu.c
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1// (c) Copyright 2007 notaz, All rights reserved.
2// Free for non-commercial use.
3
4// For commercial use, separate licencing terms must be obtained.
5
6#include <sys/stat.h>
7#include <sys/types.h>
8#include <sys/syslimits.h> // PATH_MAX
9
10#include <pspthreadman.h>
11#include <pspdisplay.h>
12#include <psputils.h>
13#include <pspgu.h>
14#include <pspaudio.h>
15
16#include "psp.h"
17#include "menu.h"
18#include "emu.h"
19#include "mp3.h"
20#include "asm_utils.h"
21#include "../common/emu.h"
22#include "../common/config.h"
23#include "../common/lprintf.h"
24#include <pico/pico_int.h>
25#include <pico/cd/cue.h>
26
27#define OSD_FPS_X 432
28
29// additional pspaudio imports, credits to crazyc
30int sceAudio_38553111(unsigned short samples, unsigned short freq, char unknown); // play with conversion?
31int sceAudio_5C37C0AE(void); // end play?
32int sceAudio_E0727056(int volume, void *buffer); // blocking output
33int sceAudioOutput2GetRestSample();
34
35
36char romFileName[PATH_MAX];
37unsigned char *PicoDraw2FB = (unsigned char *)VRAM_CACHED_STUFF + 8; // +8 to be able to skip border with 1 quadword..
38int engineState = PGS_Menu, engineStateSuspend;
39
40static unsigned int noticeMsgTime = 0;
41int reset_timing = 0; // do we need this?
42
43#define PICO_PEN_ADJUST_X 4
44#define PICO_PEN_ADJUST_Y 2
45static int pico_pen_x = 320/2, pico_pen_y = 240/2;
46
47static void sound_init(void);
48static void sound_deinit(void);
49static void blit2(const char *fps, const char *notice, int lagging_behind);
50static void clearArea(int full);
51
52void emu_noticeMsgUpdated(void)
53{
54 noticeMsgTime = sceKernelGetSystemTimeLow();
55}
56
57int emu_getMainDir(char *dst, int len)
58{
59 if (len > 0) *dst = 0;
60 return 0;
61}
62
63static void osd_text(int x, const char *text, int is_active, int clear_all)
64{
65 unsigned short *screen = is_active ? psp_video_get_active_fb() : psp_screen;
66 int len = clear_all ? (480 / 2) : (strlen(text) * 8 / 2);
67 int *p, h;
68 void *tmp;
69 for (h = 0; h < 8; h++) {
70 p = (int *) (screen+x+512*(264+h));
71 p = (int *) ((int)p & ~3); // align
72 memset32_uncached(p, 0, len);
73 }
74 if (is_active) { tmp = psp_screen; psp_screen = screen; } // nasty pointer tricks
75 emu_textOut16(x, 264, text);
76 if (is_active) psp_screen = tmp;
77}
78
79void emu_msg_cb(const char *msg)
80{
81 osd_text(4, msg, 1, 1);
82 noticeMsgTime = sceKernelGetSystemTimeLow() - 2000000;
83
84 /* assumption: emu_msg_cb gets called only when something slow is about to happen */
85 reset_timing = 1;
86}
87
88static void emu_msg_tray_open(void)
89{
90 strcpy(noticeMsg, "CD tray opened");
91 noticeMsgTime = sceKernelGetSystemTimeLow();
92}
93
94
95void emu_Init(void)
96{
97 // make dirs for saves, cfgs, etc.
98 mkdir("mds", 0777);
99 mkdir("srm", 0777);
100 mkdir("brm", 0777);
101 mkdir("cfg", 0777);
102
103 sound_init();
104
105 PicoInit();
106 PicoMessage = emu_msg_cb;
107 PicoMCDopenTray = emu_msg_tray_open;
108 PicoMCDcloseTray = menu_loop_tray;
109}
110
111void emu_Deinit(void)
112{
113 // save SRAM
114 if ((currentConfig.EmuOpt & 1) && SRam.changed) {
115 emu_SaveLoadGame(0, 1);
116 SRam.changed = 0;
117 }
118
119 if (!(currentConfig.EmuOpt & 0x20))
120 config_writelrom(PicoConfigFile);
121
122 PicoExit();
123 sound_deinit();
124}
125
126void emu_prepareDefaultConfig(void)
127{
128 memset(&defaultConfig, 0, sizeof(defaultConfig));
129 defaultConfig.EmuOpt = 0x1d | 0x680; // | <- confirm_save, cd_leds, acc rend
130 defaultConfig.s_PicoOpt = 0x0f | POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_MCD_GFX|POPT_ACC_SPRITES;
131 defaultConfig.s_PsndRate = 22050;
132 defaultConfig.s_PicoRegion = 0; // auto
133 defaultConfig.s_PicoAutoRgnOrder = 0x184; // US, EU, JP
134 defaultConfig.s_PicoCDBuffers = 64;
135 defaultConfig.Frameskip = -1; // auto
136 defaultConfig.CPUclock = 333;
137 defaultConfig.KeyBinds[ 4] = 1<<0; // SACB RLDU
138 defaultConfig.KeyBinds[ 6] = 1<<1;
139 defaultConfig.KeyBinds[ 7] = 1<<2;
140 defaultConfig.KeyBinds[ 5] = 1<<3;
141 defaultConfig.KeyBinds[14] = 1<<4;
142 defaultConfig.KeyBinds[13] = 1<<5;
143 defaultConfig.KeyBinds[15] = 1<<6;
144 defaultConfig.KeyBinds[ 3] = 1<<7;
145 defaultConfig.KeyBinds[12] = 1<<26; // switch rnd
146 defaultConfig.KeyBinds[ 8] = 1<<27; // save state
147 defaultConfig.KeyBinds[ 9] = 1<<28; // load state
148 defaultConfig.KeyBinds[28] = 1<<0; // num "buttons"
149 defaultConfig.KeyBinds[30] = 1<<1;
150 defaultConfig.KeyBinds[31] = 1<<2;
151 defaultConfig.KeyBinds[29] = 1<<3;
152 defaultConfig.scaling = 1; // bilinear filtering for psp
153 defaultConfig.scale = 1.20; // fullscreen
154 defaultConfig.hscale40 = 1.25;
155 defaultConfig.hscale32 = 1.56;
156 defaultConfig.turbo_rate = 15;
157}
158
159
160extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);
161extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);
162
163static void (*amips_clut_f)(unsigned short *dst, unsigned char *src, unsigned short *pal, int count) = NULL;
164
165struct Vertex
166{
167 short u,v;
168 short x,y,z;
169};
170
171static struct Vertex __attribute__((aligned(4))) g_vertices[2];
172static unsigned short __attribute__((aligned(16))) localPal[0x100];
173static int dynamic_palette = 0, need_pal_upload = 0, blit_16bit_mode = 0;
174static int fbimg_offs = 0;
175
176static void set_scaling_params(void)
177{
178 int src_width, fbimg_width, fbimg_height, fbimg_xoffs, fbimg_yoffs, border_hack = 0;
179 g_vertices[0].x = g_vertices[0].y =
180 g_vertices[0].z = g_vertices[1].z = 0;
181
182 fbimg_height = (int)(240.0 * currentConfig.scale + 0.5);
183 if (Pico.video.reg[12] & 1) {
184 fbimg_width = (int)(320.0 * currentConfig.scale * currentConfig.hscale40 + 0.5);
185 src_width = 320;
186 } else {
187 fbimg_width = (int)(256.0 * currentConfig.scale * currentConfig.hscale32 + 0.5);
188 src_width = 256;
189 }
190
191 if (fbimg_width & 1) fbimg_width++; // make even
192 if (fbimg_height & 1) fbimg_height++;
193
194 if (fbimg_width >= 480) {
195 g_vertices[0].u = (fbimg_width-480)/2;
196 g_vertices[1].u = src_width - (fbimg_width-480)/2 - 1;
197 fbimg_width = 480;
198 fbimg_xoffs = 0;
199 } else {
200 g_vertices[0].u = 0;
201 g_vertices[1].u = src_width;
202 fbimg_xoffs = 240 - fbimg_width/2;
203 }
204 if (fbimg_width > 320 && fbimg_width <= 480) border_hack = 1;
205
206 if (fbimg_height >= 272) {
207 g_vertices[0].v = (fbimg_height-272)/2;
208 g_vertices[1].v = 240 - (fbimg_height-272)/2;
209 fbimg_height = 272;
210 fbimg_yoffs = 0;
211 } else {
212 g_vertices[0].v = 0;
213 g_vertices[1].v = 240;
214 fbimg_yoffs = 136 - fbimg_height/2;
215 }
216
217 g_vertices[1].x = fbimg_width;
218 g_vertices[1].y = fbimg_height;
219 if (fbimg_xoffs < 0) fbimg_xoffs = 0;
220 if (fbimg_yoffs < 0) fbimg_yoffs = 0;
221 if (border_hack) {
222 g_vertices[0].u++;
223 g_vertices[0].x++;
224 g_vertices[1].u--;
225 g_vertices[1].x--;
226 }
227 fbimg_offs = (fbimg_yoffs*512 + fbimg_xoffs) * 2; // dst is always 16bit
228
229 /*
230 lprintf("set_scaling_params:\n");
231 lprintf("offs: %i, %i\n", fbimg_xoffs, fbimg_yoffs);
232 lprintf("xy0, xy1: %i, %i; %i, %i\n", g_vertices[0].x, g_vertices[0].y, g_vertices[1].x, g_vertices[1].y);
233 lprintf("uv0, uv1: %i, %i; %i, %i\n", g_vertices[0].u, g_vertices[0].v, g_vertices[1].u, g_vertices[1].v);
234 */
235}
236
237static void do_pal_update(int allow_sh, int allow_as)
238{
239 unsigned int *dpal=(void *)localPal;
240 int i;
241
242 //for (i = 0x3f/2; i >= 0; i--)
243 // dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4);
244 do_pal_convert(localPal, Pico.cram, currentConfig.gamma, currentConfig.gamma2);
245
246 Pico.m.dirtyPal = 0;
247 need_pal_upload = 1;
248
249 if (allow_sh && (Pico.video.reg[0xC]&8)) // shadow/hilight?
250 {
251 // shadowed pixels
252 for (i = 0x3f/2; i >= 0; i--)
253 dpal[0x20|i] = dpal[0x60|i] = (dpal[i]>>1)&0x7bcf7bcf;
254 // hilighted pixels
255 for (i = 0x3f; i >= 0; i--) {
256 int t=localPal[i]&0xf79e;t+=0x4208;
257 if (t&0x20) t|=0x1e;
258 if (t&0x800) t|=0x780;
259 if (t&0x10000) t|=0xf000;
260 t&=0xf79e;
261 localPal[0x80|i]=(unsigned short)t;
262 }
263 localPal[0xe0] = 0;
264 localPal[0xf0] = 0x001f;
265 }
266 else if (allow_as && (rendstatus & PDRAW_SPR_LO_ON_HI))
267 {
268 memcpy32((int *)dpal+0x80/2, (void *)localPal, 0x40*2/4);
269 }
270}
271
272static void do_slowmode_lines(int line_to)
273{
274 int line = 0, line_len = (Pico.video.reg[12]&1) ? 320 : 256;
275 unsigned short *dst = (unsigned short *)VRAM_STUFF + 512*240/2;
276 unsigned char *src = (unsigned char *)VRAM_CACHED_STUFF + 16;
277 if (!(Pico.video.reg[1]&8)) { line = 8; dst += 512*8; src += 512*8; }
278
279 for (; line < line_to; line++, dst+=512, src+=512)
280 amips_clut_f(dst, src, localPal, line_len);
281}
282
283static void EmuScanPrepare(void)
284{
285 HighCol = (unsigned char *)VRAM_CACHED_STUFF + 8;
286 if (!(Pico.video.reg[1]&8)) HighCol += 8*512;
287
288 if (dynamic_palette > 0)
289 dynamic_palette--;
290
291 if (Pico.m.dirtyPal)
292 do_pal_update(1, 1);
293 if ((rendstatus & PDRAW_SPR_LO_ON_HI) && !(Pico.video.reg[0xC]&8))
294 amips_clut_f = amips_clut_6bit;
295 else amips_clut_f = amips_clut;
296}
297
298static int EmuScanSlowBegin(unsigned int num)
299{
300 if (!(Pico.video.reg[1]&8)) num += 8;
301
302 if (!dynamic_palette)
303 HighCol = (unsigned char *)VRAM_CACHED_STUFF + num * 512 + 8;
304
305 return 0;
306}
307
308static int EmuScanSlowEnd(unsigned int num)
309{
310 if (!(Pico.video.reg[1]&8)) num += 8;
311
312 if (Pico.m.dirtyPal) {
313 if (!dynamic_palette) {
314 do_slowmode_lines(num);
315 dynamic_palette = 3; // last for 2 more frames
316 }
317 do_pal_update(1, 1);
318 }
319
320 if (dynamic_palette) {
321 int line_len = (Pico.video.reg[12]&1) ? 320 : 256;
322 void *dst = (char *)VRAM_STUFF + 512*240 + 512*2*num;
323 amips_clut_f(dst, HighCol + 8, localPal, line_len);
324 }
325
326 return 0;
327}
328
329static void blitscreen_clut(void)
330{
331 int offs = fbimg_offs;
332 offs += (psp_screen == VRAM_FB0) ? VRAMOFFS_FB0 : VRAMOFFS_FB1;
333
334 sceGuSync(0,0); // sync with prev
335 sceGuStart(GU_DIRECT, guCmdList);
336 sceGuDrawBuffer(GU_PSM_5650, (void *)offs, 512); // point to back buffer
337
338 if (dynamic_palette)
339 {
340 if (!blit_16bit_mode) { // the current mode is not 16bit
341 sceGuTexMode(GU_PSM_5650, 0, 0, 0);
342 sceGuTexImage(0,512,512,512,(char *)VRAM_STUFF + 512*240);
343
344 blit_16bit_mode = 1;
345 }
346 }
347 else
348 {
349 if (blit_16bit_mode) {
350 sceGuClutMode(GU_PSM_5650,0,0xff,0);
351 sceGuTexMode(GU_PSM_T8,0,0,0); // 8-bit image
352 sceGuTexImage(0,512,512,512,(char *)VRAM_STUFF + 16);
353 blit_16bit_mode = 0;
354 }
355
356 if ((PicoOpt&0x10) && Pico.m.dirtyPal)
357 do_pal_update(0, 0);
358
359 sceKernelDcacheWritebackAll();
360
361 if (need_pal_upload) {
362 need_pal_upload = 0;
363 sceGuClutLoad((256/8), localPal); // upload 32*8 entries (256)
364 }
365 }
366
367#if 1
368 if (g_vertices[0].u == 0 && g_vertices[1].u == g_vertices[1].x)
369 {
370 struct Vertex* vertices;
371 int x;
372
373 #define SLICE_WIDTH 32
374 for (x = 0; x < g_vertices[1].x; x += SLICE_WIDTH)
375 {
376 // render sprite
377 vertices = (struct Vertex*)sceGuGetMemory(2 * sizeof(struct Vertex));
378 memcpy(vertices, g_vertices, 2 * sizeof(struct Vertex));
379 vertices[0].u = vertices[0].x = x;
380 vertices[1].u = vertices[1].x = x + SLICE_WIDTH;
381 sceGuDrawArray(GU_SPRITES,GU_TEXTURE_16BIT|GU_VERTEX_16BIT|GU_TRANSFORM_2D,2,0,vertices);
382 }
383 // lprintf("listlen: %iB\n", sceGuCheckList()); // ~480 only
384 }
385 else
386#endif
387 sceGuDrawArray(GU_SPRITES,GU_TEXTURE_16BIT|GU_VERTEX_16BIT|GU_TRANSFORM_2D,2,0,g_vertices);
388
389 sceGuFinish();
390}
391
392
393static void cd_leds(void)
394{
395 unsigned int reg, col_g, col_r, *p;
396
397 reg = Pico_mcd->s68k_regs[0];
398
399 p = (unsigned int *)((short *)psp_screen + 512*2+4+2);
400 col_g = (reg & 2) ? 0x06000600 : 0;
401 col_r = (reg & 1) ? 0x00180018 : 0;
402 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 512/2 - 12/2;
403 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 512/2 - 12/2;
404 *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
405}
406
407static void draw_pico_ptr(void)
408{
409 unsigned char *p = (unsigned char *)VRAM_STUFF + 16;
410
411 // only if pen enabled and for 8bit mode
412 if (pico_inp_mode == 0 || blit_16bit_mode) return;
413
414 p += 512 * (pico_pen_y + PICO_PEN_ADJUST_Y);
415 p += pico_pen_x + PICO_PEN_ADJUST_X;
416 p[ -1] = 0xe0; p[ 0] = 0xf0; p[ 1] = 0xe0;
417 p[ 511] = 0xf0; p[ 512] = 0xf0; p[ 513] = 0xf0;
418 p[1023] = 0xe0; p[1024] = 0xf0; p[1025] = 0xe0;
419}
420
421
422#if 0
423static void dbg_text(void)
424{
425 int *p, h, len;
426 char text[128];
427
428 sprintf(text, "sl: %i, 16b: %i", g_vertices[0].u == 0 && g_vertices[1].u == g_vertices[1].x, blit_16bit_mode);
429 len = strlen(text) * 8 / 2;
430 for (h = 0; h < 8; h++) {
431 p = (int *) ((unsigned short *) psp_screen+2+512*(256+h));
432 p = (int *) ((int)p & ~3); // align
433 memset32_uncached(p, 0, len);
434 }
435 emu_textOut16(2, 256, text);
436}
437#endif
438
439/* called after rendering is done, but frame emulation is not finished */
440void blit1(void)
441{
442 if (PicoOpt&0x10)
443 {
444 int i;
445 unsigned char *pd;
446 // clear top and bottom trash
447 for (pd = PicoDraw2FB+8, i = 8; i > 0; i--, pd += 512)
448 memset32((int *)pd, 0xe0e0e0e0, 320/4);
449 for (pd = PicoDraw2FB+512*232+8, i = 8; i > 0; i--, pd += 512)
450 memset32((int *)pd, 0xe0e0e0e0, 320/4);
451 }
452
453 if (PicoAHW & PAHW_PICO)
454 draw_pico_ptr();
455
456 blitscreen_clut();
457}
458
459
460static void blit2(const char *fps, const char *notice, int lagging_behind)
461{
462 int vsync = 0, emu_opt = currentConfig.EmuOpt;
463
464 if (notice || (emu_opt & 2)) {
465 if (notice) osd_text(4, notice, 0, 0);
466 if (emu_opt & 2) osd_text(OSD_FPS_X, fps, 0, 0);
467 }
468
469 //dbg_text();
470
471 if ((emu_opt & 0x400) && (PicoAHW & PAHW_MCD))
472 cd_leds();
473
474 if (currentConfig.EmuOpt & 0x2000) { // want vsync
475 if (!(currentConfig.EmuOpt & 0x10000) || !lagging_behind) vsync = 1;
476 }
477
478 psp_video_flip(vsync);
479}
480
481// clears whole screen or just the notice area (in all buffers)
482static void clearArea(int full)
483{
484 if (full) {
485 memset32_uncached(psp_screen, 0, 512*272*2/4);
486 psp_video_flip(0);
487 memset32_uncached(psp_screen, 0, 512*272*2/4);
488 memset32(VRAM_CACHED_STUFF, 0xe0e0e0e0, 512*240/4);
489 memset32((int *)VRAM_CACHED_STUFF+512*240/4, 0, 512*240*2/4);
490 } else {
491 void *fb = psp_video_get_active_fb();
492 memset32_uncached((int *)((char *)psp_screen + 512*264*2), 0, 512*8*2/4);
493 memset32_uncached((int *)((char *)fb + 512*264*2), 0, 512*8*2/4);
494 }
495}
496
497static void vidResetMode(void)
498{
499 // setup GU
500 sceGuSync(0,0); // sync with prev
501 sceGuStart(GU_DIRECT, guCmdList);
502
503 sceGuClutMode(GU_PSM_5650,0,0xff,0);
504 sceGuTexMode(GU_PSM_T8,0,0,0); // 8-bit image
505 sceGuTexFunc(GU_TFX_REPLACE,GU_TCC_RGB);
506 if (currentConfig.scaling)
507 sceGuTexFilter(GU_LINEAR, GU_LINEAR);
508 else sceGuTexFilter(GU_NEAREST, GU_NEAREST);
509 sceGuTexScale(1.0f,1.0f);
510 sceGuTexOffset(0.0f,0.0f);
511
512 sceGuTexImage(0,512,512,512,(char *)VRAM_STUFF + 16);
513
514 // slow rend.
515 PicoDrawSetColorFormat(-1);
516 PicoScanBegin = EmuScanSlowBegin;
517 PicoScanEnd = EmuScanSlowEnd;
518
519 localPal[0xe0] = 0;
520 localPal[0xf0] = 0x001f;
521 Pico.m.dirtyPal = 1;
522 blit_16bit_mode = dynamic_palette = 0;
523
524 sceGuFinish();
525 set_scaling_params();
526 sceGuSync(0,0);
527}
528
529void emu_platformDebugCat(char *str)
530{
531 strcat(str, blit_16bit_mode ? "soft clut\n" : "hard clut\n");
532}
533
534
535/* sound stuff */
536#define SOUND_BLOCK_SIZE_NTSC (1470*2) // 1024 // 1152
537#define SOUND_BLOCK_SIZE_PAL (1764*2)
538#define SOUND_BLOCK_COUNT 8
539
540static short __attribute__((aligned(4))) sndBuffer[SOUND_BLOCK_SIZE_PAL*SOUND_BLOCK_COUNT + 44100/50*2];
541static short *snd_playptr = NULL, *sndBuffer_endptr = NULL;
542static int samples_made = 0, samples_done = 0, samples_block = 0;
543static int sound_thread_exit = 0;
544static SceUID sound_sem = -1;
545
546static void writeSound(int len);
547
548static int sound_thread(SceSize args, void *argp)
549{
550 int ret = 0;
551
552 lprintf("sthr: started, priority %i\n", sceKernelGetThreadCurrentPriority());
553
554 while (!sound_thread_exit)
555 {
556 if (samples_made - samples_done < samples_block) {
557 // wait for data (use at least 2 blocks)
558 //lprintf("sthr: wait... (%i)\n", samples_made - samples_done);
559 while (samples_made - samples_done <= samples_block*2 && !sound_thread_exit)
560 ret = sceKernelWaitSema(sound_sem, 1, 0);
561 if (ret < 0) lprintf("sthr: sceKernelWaitSema: %i\n", ret);
562 continue;
563 }
564
565 // lprintf("sthr: got data: %i\n", samples_made - samples_done);
566
567 ret = sceAudio_E0727056(PSP_AUDIO_VOLUME_MAX, snd_playptr);
568
569 samples_done += samples_block;
570 snd_playptr += samples_block;
571 if (snd_playptr >= sndBuffer_endptr)
572 snd_playptr = sndBuffer;
573 // 1.5 kernel returns 0, newer ones return # of samples queued
574 if (ret < 0)
575 lprintf("sthr: sceAudio_E0727056: %08x; pos %i/%i\n", ret, samples_done, samples_made);
576
577 // shouln't happen, but just in case
578 if (samples_made - samples_done >= samples_block*3) {
579 //lprintf("sthr: block skip (%i)\n", samples_made - samples_done);
580 samples_done += samples_block; // skip
581 snd_playptr += samples_block;
582 }
583
584 }
585
586 lprintf("sthr: exit\n");
587 sceKernelExitDeleteThread(0);
588 return 0;
589}
590
591static void sound_init(void)
592{
593 SceUID thid;
594 int ret;
595
596 sound_sem = sceKernelCreateSema("sndsem", 0, 0, 1, NULL);
597 if (sound_sem < 0) lprintf("sceKernelCreateSema() failed: %i\n", sound_sem);
598
599 samples_made = samples_done = 0;
600 samples_block = SOUND_BLOCK_SIZE_NTSC; // make sure it goes to sema
601 sound_thread_exit = 0;
602 thid = sceKernelCreateThread("sndthread", sound_thread, 0x12, 0x10000, 0, NULL);
603 if (thid >= 0)
604 {
605 ret = sceKernelStartThread(thid, 0, 0);
606 if (ret < 0) lprintf("sound_init: sceKernelStartThread returned %08x\n", ret);
607 }
608 else
609 lprintf("sceKernelCreateThread failed: %i\n", thid);
610}
611
612void emu_startSound(void)
613{
614 static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
615 int ret, stereo;
616
617 samples_made = samples_done = 0;
618
619 if (PsndRate != PsndRate_old || (PicoOpt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) {
620 PsndRerate(Pico.m.frame_count ? 1 : 0);
621 }
622 stereo=(PicoOpt&8)>>3;
623
624 samples_block = Pico.m.pal ? SOUND_BLOCK_SIZE_PAL : SOUND_BLOCK_SIZE_NTSC;
625 if (PsndRate <= 22050) samples_block /= 2;
626 sndBuffer_endptr = &sndBuffer[samples_block*SOUND_BLOCK_COUNT];
627
628 lprintf("starting audio: %i, len: %i, stereo: %i, pal: %i, block samples: %i\n",
629 PsndRate, PsndLen, stereo, Pico.m.pal, samples_block);
630
631 // while (sceAudioOutput2GetRestSample() > 0) psp_msleep(100);
632 // sceAudio_5C37C0AE();
633 ret = sceAudio_38553111(samples_block/2, PsndRate, 2); // seems to not need that stupid 64byte alignment
634 if (ret < 0) {
635 lprintf("sceAudio_38553111() failed: %i\n", ret);
636 sprintf(noticeMsg, "sound init failed (%i), snd disabled", ret);
637 noticeMsgTime = sceKernelGetSystemTimeLow();
638 currentConfig.EmuOpt &= ~4;
639 } else {
640 PicoWriteSound = writeSound;
641 memset32((int *)(void *)sndBuffer, 0, sizeof(sndBuffer)/4);
642 snd_playptr = sndBuffer_endptr - samples_block;
643 samples_made = samples_block; // send 1 empty block first..
644 PsndOut = sndBuffer;
645 PsndRate_old = PsndRate;
646 PicoOpt_old = PicoOpt;
647 pal_old = Pico.m.pal;
648 }
649}
650
651void emu_endSound(void)
652{
653 int i;
654 if (samples_done == 0)
655 {
656 // if no data is written between sceAudio_38553111 and sceAudio_5C37C0AE calls,
657 // we get a deadlock on next sceAudio_38553111 call
658 // so this is yet another workaround:
659 memset32((int *)(void *)sndBuffer, 0, samples_block*4/4);
660 samples_made = samples_block * 3;
661 sceKernelSignalSema(sound_sem, 1);
662 }
663 sceKernelDelayThread(100*1000);
664 samples_made = samples_done = 0;
665 for (i = 0; sceAudioOutput2GetRestSample() > 0 && i < 16; i++)
666 psp_msleep(100);
667 sceAudio_5C37C0AE();
668}
669
670/* wait until we can write more sound */
671void emu_waitSound(void)
672{
673 // TODO: test this
674 while (!sound_thread_exit && samples_made - samples_done > samples_block * 4)
675 psp_msleep(10);
676}
677
678static void sound_deinit(void)
679{
680 sound_thread_exit = 1;
681 sceKernelSignalSema(sound_sem, 1);
682 sceKernelDeleteSema(sound_sem);
683 sound_sem = -1;
684}
685
686static void writeSound(int len)
687{
688 int ret;
689 if (PicoOpt&8) len<<=1;
690
691 PsndOut += len;
692 /*if (PsndOut > sndBuffer_endptr) {
693 memcpy32((int *)(void *)sndBuffer, (int *)endptr, (PsndOut - endptr + 1) / 2);
694 PsndOut = &sndBuffer[PsndOut - endptr];
695 lprintf("mov\n");
696 }
697 else*/
698 if (PsndOut > sndBuffer_endptr) lprintf("snd oflow %i!\n", PsndOut - sndBuffer_endptr);
699 if (PsndOut >= sndBuffer_endptr)
700 PsndOut = sndBuffer;
701
702 // signal the snd thread
703 samples_made += len;
704 if (samples_made - samples_done > samples_block*2) {
705 // lprintf("signal, %i/%i\n", samples_done, samples_made);
706 ret = sceKernelSignalSema(sound_sem, 1);
707 //if (ret < 0) lprintf("snd signal ret %08x\n", ret);
708 }
709}
710
711
712static void SkipFrame(void)
713{
714 PicoSkipFrame=1;
715 PicoFrame();
716 PicoSkipFrame=0;
717}
718
719void emu_forcedFrame(int opts)
720{
721 int po_old = PicoOpt;
722 int eo_old = currentConfig.EmuOpt;
723
724 PicoOpt &= ~0x10;
725 PicoOpt |= opts|POPT_ACC_SPRITES;
726 currentConfig.EmuOpt |= 0x80;
727
728 vidResetMode();
729 memset32(VRAM_CACHED_STUFF, 0xe0e0e0e0, 512*8/4); // borders
730 memset32((int *)VRAM_CACHED_STUFF + 512*232/4, 0xe0e0e0e0, 512*8/4);
731 memset32_uncached((int *)psp_screen + 512*264*2/4, 0, 512*8*2/4);
732
733 PicoDrawSetColorFormat(-1);
734 PicoScanBegin = EmuScanSlowBegin;
735 PicoScanEnd = EmuScanSlowEnd;
736 EmuScanPrepare();
737 PicoFrameDrawOnly();
738 blit1();
739 sceGuSync(0,0);
740
741 PicoOpt = po_old;
742 currentConfig.EmuOpt = eo_old;
743}
744
745
746static void RunEventsPico(unsigned int events, unsigned int keys)
747{
748 emu_RunEventsPico(events);
749
750 if (pico_inp_mode != 0)
751 {
752 PicoPad[0] &= ~0x0f; // release UDLR
753 if (keys & BTN_UP) { pico_pen_y--; if (pico_pen_y < 8) pico_pen_y = 8; }
754 if (keys & BTN_DOWN) { pico_pen_y++; if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y; }
755 if (keys & BTN_LEFT) { pico_pen_x--; if (pico_pen_x < 0) pico_pen_x = 0; }
756 if (keys & BTN_RIGHT) {
757 int lim = (Pico.video.reg[12]&1) ? 319 : 255;
758 pico_pen_x++;
759 if (pico_pen_x > lim-PICO_PEN_ADJUST_X)
760 pico_pen_x = lim-PICO_PEN_ADJUST_X;
761 }
762 PicoPicohw.pen_pos[0] = pico_pen_x;
763 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;
764 PicoPicohw.pen_pos[0] += 0x3c;
765 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
766 }
767}
768
769static void RunEvents(unsigned int which)
770{
771 if (which & 0x1800) // save or load (but not both)
772 {
773 int do_it = 1;
774
775 if ( emu_checkSaveFile(state_slot) &&
776 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
777 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save
778 {
779 int keys;
780 sceGuSync(0,0);
781 blit2("", (which & 0x1000) ? "LOAD STATE? (X=yes, O=no)" : "OVERWRITE SAVE? (X=yes, O=no)", 0);
782 while( !((keys = psp_pad_read(1)) & (BTN_X|BTN_CIRCLE)) )
783 psp_msleep(50);
784 if (keys & BTN_CIRCLE) do_it = 0;
785 while( ((keys = psp_pad_read(1)) & (BTN_X|BTN_CIRCLE)) ) // wait for release
786 psp_msleep(50);
787 clearArea(0);
788 }
789
790 if (do_it)
791 {
792 osd_text(4, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME", 1, 0);
793 PicoStateProgressCB = emu_msg_cb;
794 emu_SaveLoadGame((which & 0x1000) >> 12, 0);
795 PicoStateProgressCB = NULL;
796 psp_msleep(0);
797 }
798
799 reset_timing = 1;
800 }
801 if (which & 0x0400) // switch renderer
802 {
803 if (PicoOpt&0x10) { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
804 else { PicoOpt|= 0x10; currentConfig.EmuOpt &= ~0x80; }
805
806 vidResetMode();
807
808 if (PicoOpt&0x10)
809 strcpy(noticeMsg, "fast renderer");
810 else if (currentConfig.EmuOpt&0x80)
811 strcpy(noticeMsg, "accurate renderer");
812
813 noticeMsgTime = sceKernelGetSystemTimeLow();
814 }
815 if (which & 0x0300)
816 {
817 if(which&0x0200) {
818 state_slot -= 1;
819 if(state_slot < 0) state_slot = 9;
820 } else {
821 state_slot += 1;
822 if(state_slot > 9) state_slot = 0;
823 }
824 sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
825 noticeMsgTime = sceKernelGetSystemTimeLow();
826 }
827}
828
829static void updateKeys(void)
830{
831 unsigned int keys, allActions[2] = { 0, 0 }, events;
832 static unsigned int prevEvents = 0;
833 int i;
834
835 keys = psp_pad_read(0);
836 if (keys & PSP_CTRL_HOME)
837 sceDisplayWaitVblankStart();
838
839 if (keys & BTN_SELECT)
840 engineState = PGS_Menu;
841
842 keys &= CONFIGURABLE_KEYS;
843
844 for (i = 0; i < 32; i++)
845 {
846 if (keys & (1 << i))
847 {
848 int pl, acts = currentConfig.KeyBinds[i];
849 if (!acts) continue;
850 pl = (acts >> 16) & 1;
851 if (kb_combo_keys & (1 << i))
852 {
853 int u = i+1, acts_c = acts & kb_combo_acts;
854 // let's try to find the other one
855 if (acts_c) {
856 for (; u < 32; u++)
857 if ( (keys & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {
858 allActions[pl] |= acts_c & currentConfig.KeyBinds[u];
859 keys &= ~((1 << i) | (1 << u));
860 break;
861 }
862 }
863 // add non-combo actions if combo ones were not found
864 if (!acts_c || u == 32)
865 allActions[pl] |= acts & ~kb_combo_acts;
866 } else {
867 allActions[pl] |= acts;
868 }
869 }
870 }
871
872 PicoPad[0] = allActions[0] & 0xfff;
873 PicoPad[1] = allActions[1] & 0xfff;
874
875 if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);
876 if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);
877
878 events = (allActions[0] | allActions[1]) >> 16;
879
880 if ((events ^ prevEvents) & 0x40) {
881 emu_changeFastForward(events & 0x40);
882 reset_timing = 1;
883 }
884
885 events &= ~prevEvents;
886
887 if (PicoAHW == PAHW_PICO)
888 RunEventsPico(events, keys);
889 if (events) RunEvents(events);
890 if (movie_data) emu_updateMovie();
891
892 prevEvents = (allActions[0] | allActions[1]) >> 16;
893}
894
895
896static void simpleWait(unsigned int until)
897{
898 unsigned int tval;
899 int diff;
900
901 tval = sceKernelGetSystemTimeLow();
902 diff = (int)until - (int)tval;
903 if (diff >= 512 && diff < 100*1024)
904 sceKernelDelayThread(diff);
905}
906
907void emu_Loop(void)
908{
909 static int mp3_init_done = 0;
910 char fpsbuff[24]; // fps count c string
911 unsigned int tval, tval_thissec = 0; // timing
912 int target_fps, target_frametime, lim_time, tval_diff, i, oldmodes = 0;
913 int pframes_done, pframes_shown; // "period" frames, used for sync
914 int frames_done, frames_shown, tval_fpsc = 0; // actual frames
915 char *notice = NULL;
916
917 lprintf("entered emu_Loop()\n");
918
919 fpsbuff[0] = 0;
920
921 if (currentConfig.CPUclock != psp_get_cpu_clock()) {
922 lprintf("setting cpu clock to %iMHz... ", currentConfig.CPUclock);
923 i = psp_set_cpu_clock(currentConfig.CPUclock);
924 lprintf(i ? "failed\n" : "done\n");
925 currentConfig.CPUclock = psp_get_cpu_clock();
926 }
927
928 // make sure we are in correct mode
929 vidResetMode();
930 clearArea(1);
931 Pico.m.dirtyPal = 1;
932 oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
933 emu_findKeyBindCombos();
934
935 // pal/ntsc might have changed, reset related stuff
936 target_fps = Pico.m.pal ? 50 : 60;
937 target_frametime = Pico.m.pal ? (1000000<<8)/50 : (1000000<<8)/60+1;
938 reset_timing = 1;
939
940 if (PicoAHW & PAHW_MCD) {
941 // prepare CD buffer
942 PicoCDBufferInit();
943 // mp3...
944 if (!mp3_init_done) {
945 i = mp3_init();
946 mp3_init_done = 1;
947 if (i) { engineState = PGS_Menu; return; }
948 }
949 }
950
951 // prepare sound stuff
952 PsndOut = NULL;
953 if (currentConfig.EmuOpt & 4)
954 {
955 emu_startSound();
956 }
957
958 sceDisplayWaitVblankStart();
959 pframes_shown = pframes_done =
960 frames_shown = frames_done = 0;
961
962 tval_fpsc = sceKernelGetSystemTimeLow();
963
964 // loop?
965 while (engineState == PGS_Running)
966 {
967 int modes;
968
969 tval = sceKernelGetSystemTimeLow();
970 if (reset_timing || tval < tval_fpsc) {
971 //stdbg("timing reset");
972 reset_timing = 0;
973 tval_thissec = tval;
974 pframes_shown = pframes_done = 0;
975 }
976
977 // show notice message?
978 if (noticeMsgTime) {
979 static int noticeMsgSum;
980 if (tval - noticeMsgTime > 2000000) { // > 2.0 sec
981 noticeMsgTime = 0;
982 clearArea(0);
983 notice = 0;
984 } else {
985 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
986 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
987 notice = noticeMsg;
988 }
989 }
990
991 // check for mode changes
992 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
993 if (modes != oldmodes) {
994 oldmodes = modes;
995 clearArea(1);
996 set_scaling_params();
997 }
998
999 // second passed?
1000 if (tval - tval_fpsc >= 1000000)
1001 {
1002 if (currentConfig.EmuOpt & 2)
1003 sprintf(fpsbuff, "%02i/%02i ", frames_shown, frames_done);
1004 frames_done = frames_shown = 0;
1005 tval_fpsc += 1000000;
1006 }
1007
1008 if (tval - tval_thissec >= 1000000)
1009 {
1010 // missing 1 frame?
1011 if (currentConfig.Frameskip < 0 && pframes_done < target_fps) {
1012 SkipFrame(); pframes_done++; frames_done++;
1013 }
1014
1015 tval_thissec += 1000000;
1016
1017 if (currentConfig.Frameskip < 0) {
1018 pframes_done -= target_fps; if (pframes_done < 0) pframes_done = 0;
1019 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;
1020 if (pframes_shown > pframes_done) pframes_shown = pframes_done;
1021 } else {
1022 pframes_done = pframes_shown = 0;
1023 }
1024 }
1025#ifdef PFRAMES
1026 sprintf(fpsbuff, "%i", Pico.m.frame_count);
1027#endif
1028
1029 lim_time = (pframes_done+1) * target_frametime;
1030 if (currentConfig.Frameskip >= 0) // frameskip enabled
1031 {
1032 for (i = 0; i < currentConfig.Frameskip; i++) {
1033 updateKeys();
1034 SkipFrame(); pframes_done++; frames_done++;
1035 if (!(currentConfig.EmuOpt&0x40000)) { // do framelimitting if needed
1036 int tval_diff;
1037 tval = sceKernelGetSystemTimeLow();
1038 tval_diff = (int)(tval - tval_thissec) << 8;
1039 if (tval_diff < lim_time) // we are too fast
1040 simpleWait(tval + ((lim_time - tval_diff)>>8));
1041 }
1042 lim_time += target_frametime;
1043 }
1044 }
1045 else // auto frameskip
1046 {
1047 int tval_diff;
1048 tval = sceKernelGetSystemTimeLow();
1049 tval_diff = (int)(tval - tval_thissec) << 8;
1050 if (tval_diff > lim_time && (pframes_done/16 < pframes_shown))
1051 {
1052 // no time left for this frame - skip
1053 if (tval_diff - lim_time >= (300000<<8)) {
1054 reset_timing = 1;
1055 continue;
1056 }
1057 updateKeys();
1058 SkipFrame(); pframes_done++; frames_done++;
1059 continue;
1060 }
1061 }
1062
1063 updateKeys();
1064
1065 if (!(PicoOpt&0x10))
1066 EmuScanPrepare();
1067
1068 PicoFrame();
1069
1070 sceGuSync(0,0);
1071
1072 // check time
1073 tval = sceKernelGetSystemTimeLow();
1074 tval_diff = (int)(tval - tval_thissec) << 8;
1075
1076 blit2(fpsbuff, notice, tval_diff > lim_time);
1077
1078 if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300000<<8)) { // slowdown detection
1079 reset_timing = 1;
1080 }
1081 else if (!(currentConfig.EmuOpt&0x40000) || currentConfig.Frameskip < 0)
1082 {
1083 // sleep if we are still too fast
1084 if (tval_diff < lim_time)
1085 {
1086 // we are too fast
1087 simpleWait(tval + ((lim_time - tval_diff) >> 8));
1088 }
1089 }
1090
1091 pframes_done++; pframes_shown++;
1092 frames_done++; frames_shown++;
1093 }
1094
1095
1096 emu_changeFastForward(0);
1097
1098 if (PicoAHW & PAHW_MCD) PicoCDBufferFree();
1099
1100 if (PsndOut != NULL) {
1101 emu_endSound();
1102 PsndOut = NULL;
1103 }
1104
1105 // save SRAM
1106 if ((currentConfig.EmuOpt & 1) && SRam.changed) {
1107 emu_msg_cb("Writing SRAM/BRAM..");
1108 emu_SaveLoadGame(0, 1);
1109 SRam.changed = 0;
1110 }
1111
1112 // clear fps counters and stuff
1113 memset32_uncached((int *)psp_video_get_active_fb() + 512*264*2/4, 0, 512*8*2/4);
1114}
1115
1116
1117void emu_ResetGame(void)
1118{
1119 PicoReset();
1120 reset_timing = 1;
1121}
1122
1123void emu_HandleResume(void)
1124{
1125 if (!(PicoAHW & PAHW_MCD)) return;
1126
1127 // reopen first CD track
1128 if (Pico_mcd->TOC.Tracks[0].F != NULL)
1129 {
1130 char *fname = romFileName;
1131 int len = strlen(romFileName);
1132 cue_data_t *cue_data = NULL;
1133
1134 if (len > 4 && strcasecmp(fname + len - 4, ".cue") == 0)
1135 {
1136 cue_data = cue_parse(romFileName);
1137 if (cue_data != NULL)
1138 fname = cue_data->tracks[1].fname;
1139 }
1140
1141 lprintf("emu_HandleResume: reopen %s\n", fname);
1142 pm_close(Pico_mcd->TOC.Tracks[0].F);
1143 Pico_mcd->TOC.Tracks[0].F = pm_open(fname);
1144 lprintf("reopen %s\n", Pico_mcd->TOC.Tracks[0].F != NULL ? "ok" : "failed");
1145
1146 if (cue_data != NULL) cue_destroy(cue_data);
1147 }
1148
1149 mp3_reopen_file();
1150
1151 if (!(Pico_mcd->s68k_regs[0x36] & 1) && (Pico_mcd->scd.Status_CDC & 1))
1152 cdda_start_play();
1153}
1154
fast MegaDrive/MegaCD/32X emulator