platform/psp/emu.c

   1 /*
   2  * PicoDrive
   3  * (C) notaz, 2007,2008
   4  *
   5  * This work is licensed under the terms of MAME license.
   6  * See COPYING file in the top-level directory.
   7  */
   8
   9 #include <sys/stat.h>
  10 #include <sys/types.h>
  11 #include <sys/syslimits.h> // PATH_MAX
  12
  13 #include <pspthreadman.h>
  14 #include <pspdisplay.h>
  15 #include <psputils.h>
  16 #include <pspgu.h>
  17 #include <pspaudio.h>
  18
  19 #include "psp.h"
  20 #include "menu.h"
  21 #include "emu.h"
  22 #include "mp3.h"
  23 #include "asm_utils.h"
  24 #include "../common/emu.h"
  25 #include "../common/config.h"
  26 #include "../common/lprintf.h"
  27 #include <pico/pico_int.h>
  28 #include <pico/cd/cue.h>
  29
  30 #define OSD_FPS_X 432
  31
  32 // additional pspaudio imports, credits to crazyc
  33 int sceAudio_38553111(unsigned short samples, unsigned short freq, char unknown);  // play with conversion?
  34 int sceAudio_5C37C0AE(void);                            // end play?
  35 int sceAudio_E0727056(int volume, void *buffer);        // blocking output
  36 int sceAudioOutput2GetRestSample();
  37
  38
  39 //unsigned char *Draw2FB = (unsigned char *)VRAM_CACHED_STUFF + 8; // +8 to be able to skip border with 1 quadword..
  40 int engineStateSuspend;
  41
  42 #define PICO_PEN_ADJUST_X 4
  43 #define PICO_PEN_ADJUST_Y 2
  44 static int pico_pen_x = 320/2, pico_pen_y = 240/2;
  45
  46 static void sound_init(void);
  47 static void sound_deinit(void);
  48 static void blit2(const char *fps, const char *notice, int lagging_behind);
  49 static void clearArea(int full);
  50
  51 int plat_get_root_dir(char *dst, int len)
  52 {
  53         if (len > 0) *dst = 0;
  54         return 0;
  55 }
  56
  57 static void osd_text(int x, const char *text, int is_active, int clear_all)
  58 {
  59         unsigned short *screen = is_active ? psp_video_get_active_fb() : psp_screen;
  60         int len = clear_all ? (480 / 2) : (strlen(text) * 8 / 2);
  61         int *p, h;
  62         void *tmp;
  63         for (h = 0; h < 8; h++) {
  64                 p = (int *) (screen+x+512*(264+h));
  65                 p = (int *) ((int)p & ~3); // align
  66                 memset32_uncached(p, 0, len);
  67         }
  68         if (is_active) { tmp = psp_screen; psp_screen = screen; } // nasty pointer tricks
  69         emu_text_out16(x, 264, text);
  70         if (is_active) psp_screen = tmp;
  71 }
  72
  73 void emu_msg_cb(const char *msg)
  74 {
  75         osd_text(4, msg, 1, 1);
  76         noticeMsgTime = sceKernelGetSystemTimeLow() - 2000000;
  77
  78         /* assumption: emu_msg_cb gets called only when something slow is about to happen */
  79         reset_timing = 1;
  80 }
  81
  82 /* FIXME: move to plat */
  83 void emu_Init(void)
  84 {
  85         sound_init();
  86 }
  87
  88 void emu_Deinit(void)
  89 {
  90         sound_deinit();
  91 }
  92
  93 void pemu_prep_defconfig(void)
  94 {
  95         defaultConfig.s_PsndRate = 22050;
  96         defaultConfig.s_PicoCDBuffers = 64;
  97         defaultConfig.CPUclock = 333;
  98         defaultConfig.KeyBinds[ 4] = 1<<0; // SACB RLDU
  99         defaultConfig.KeyBinds[ 6] = 1<<1;
 100         defaultConfig.KeyBinds[ 7] = 1<<2;
 101         defaultConfig.KeyBinds[ 5] = 1<<3;
 102         defaultConfig.KeyBinds[14] = 1<<4;
 103         defaultConfig.KeyBinds[13] = 1<<5;
 104         defaultConfig.KeyBinds[15] = 1<<6;
 105         defaultConfig.KeyBinds[ 3] = 1<<7;
 106         defaultConfig.KeyBinds[12] = 1<<26; // switch rnd
 107         defaultConfig.KeyBinds[ 8] = 1<<27; // save state
 108         defaultConfig.KeyBinds[ 9] = 1<<28; // load state
 109         defaultConfig.KeyBinds[28] = 1<<0; // num "buttons"
 110         defaultConfig.KeyBinds[30] = 1<<1;
 111         defaultConfig.KeyBinds[31] = 1<<2;
 112         defaultConfig.KeyBinds[29] = 1<<3;
 113         defaultConfig.scaling = 1;     // bilinear filtering for psp
 114         defaultConfig.scale = 1.20;    // fullscreen
 115         defaultConfig.hscale40 = 1.25;
 116         defaultConfig.hscale32 = 1.56;
 117 }
 118
 119
 120 extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);
 121 extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);
 122
 123 static void (*amips_clut_f)(unsigned short *dst, unsigned char *src, unsigned short *pal, int count) = NULL;
 124
 125 struct Vertex
 126 {
 127         short u,v;
 128         short x,y,z;
 129 };
 130
 131 static struct Vertex __attribute__((aligned(4))) g_vertices[2];
 132 static unsigned short __attribute__((aligned(16))) localPal[0x100];
 133 static int dynamic_palette = 0, need_pal_upload = 0, blit_16bit_mode = 0;
 134 static int fbimg_offs = 0;
 135
 136 static void set_scaling_params(void)
 137 {
 138         int src_width, fbimg_width, fbimg_height, fbimg_xoffs, fbimg_yoffs, border_hack = 0;
 139         g_vertices[0].x = g_vertices[0].y =
 140         g_vertices[0].z = g_vertices[1].z = 0;
 141
 142         fbimg_height = (int)(240.0 * currentConfig.scale + 0.5);
 143         if (Pico.video.reg[12] & 1) {
 144                 fbimg_width = (int)(320.0 * currentConfig.scale * currentConfig.hscale40 + 0.5);
 145                 src_width = 320;
 146         } else {
 147                 fbimg_width = (int)(256.0 * currentConfig.scale * currentConfig.hscale32 + 0.5);
 148                 src_width = 256;
 149         }
 150
 151         if (fbimg_width  & 1) fbimg_width++;  // make even
 152         if (fbimg_height & 1) fbimg_height++;
 153
 154         if (fbimg_width >= 480) {
 155                 g_vertices[0].u = (fbimg_width-480)/2;
 156                 g_vertices[1].u = src_width - (fbimg_width-480)/2 - 1;
 157                 fbimg_width = 480;
 158                 fbimg_xoffs = 0;
 159         } else {
 160                 g_vertices[0].u = 0;
 161                 g_vertices[1].u = src_width;
 162                 fbimg_xoffs = 240 - fbimg_width/2;
 163         }
 164         if (fbimg_width > 320 && fbimg_width <= 480) border_hack = 1;
 165
 166         if (fbimg_height >= 272) {
 167                 g_vertices[0].v = (fbimg_height-272)/2;
 168                 g_vertices[1].v = 240 - (fbimg_height-272)/2;
 169                 fbimg_height = 272;
 170                 fbimg_yoffs = 0;
 171         } else {
 172                 g_vertices[0].v = 0;
 173                 g_vertices[1].v = 240;
 174                 fbimg_yoffs = 136 - fbimg_height/2;
 175         }
 176
 177         g_vertices[1].x = fbimg_width;
 178         g_vertices[1].y = fbimg_height;
 179         if (fbimg_xoffs < 0) fbimg_xoffs = 0;
 180         if (fbimg_yoffs < 0) fbimg_yoffs = 0;
 181         if (border_hack) {
 182                 g_vertices[0].u++;
 183                 g_vertices[0].x++;
 184                 g_vertices[1].u--;
 185                 g_vertices[1].x--;
 186         }
 187         fbimg_offs = (fbimg_yoffs*512 + fbimg_xoffs) * 2; // dst is always 16bit
 188
 189         /*
 190         lprintf("set_scaling_params:\n");
 191         lprintf("offs: %i, %i\n", fbimg_xoffs, fbimg_yoffs);
 192         lprintf("xy0, xy1: %i, %i; %i, %i\n", g_vertices[0].x, g_vertices[0].y, g_vertices[1].x, g_vertices[1].y);
 193         lprintf("uv0, uv1: %i, %i; %i, %i\n", g_vertices[0].u, g_vertices[0].v, g_vertices[1].u, g_vertices[1].v);
 194         */
 195 }
 196
 197 static void do_pal_update(int allow_sh, int allow_as)
 198 {
 199         unsigned int *dpal=(void *)localPal;
 200         int i;
 201
 202         //for (i = 0x3f/2; i >= 0; i--)
 203         //      dpal[i] = ((spal[i]&0x000f000f)<< 1)|((spal[i]&0x00f000f0)<<3)|((spal[i]&0x0f000f00)<<4);
 204         do_pal_convert(localPal, Pico.cram, currentConfig.gamma, currentConfig.gamma2);
 205
 206         Pico.m.dirtyPal = 0;
 207         need_pal_upload = 1;
 208
 209         if (allow_sh && (Pico.video.reg[0xC]&8)) // shadow/hilight?
 210         {
 211                 // shadowed pixels
 212                 for (i = 0x3f/2; i >= 0; i--)
 213                         dpal[0x20|i] = dpal[0x60|i] = (dpal[i]>>1)&0x7bcf7bcf;
 214                 // hilighted pixels
 215                 for (i = 0x3f; i >= 0; i--) {
 216                         int t=localPal[i]&0xf79e;t+=0x4208;
 217                         if (t&0x20) t|=0x1e;
 218                         if (t&0x800) t|=0x780;
 219                         if (t&0x10000) t|=0xf000;
 220                         t&=0xf79e;
 221                         localPal[0x80|i]=(unsigned short)t;
 222                 }
 223                 localPal[0xe0] = 0;
 224                 localPal[0xf0] = 0x001f;
 225         }
 226 }
 227
 228 static void do_slowmode_lines(int line_to)
 229 {
 230         int line = 0, line_len = (Pico.video.reg[12]&1) ? 320 : 256;
 231         unsigned short *dst = (unsigned short *)VRAM_STUFF + 512*240/2;
 232         unsigned char  *src = (unsigned char  *)VRAM_CACHED_STUFF + 16;
 233         if (!(Pico.video.reg[1]&8)) { line = 8; dst += 512*8; src += 512*8; }
 234
 235         for (; line < line_to; line++, dst+=512, src+=512)
 236                 amips_clut_f(dst, src, localPal, line_len);
 237 }
 238
 239 static void EmuScanPrepare(void)
 240 {
 241         Pico.est.HighCol = (unsigned char *)VRAM_CACHED_STUFF + 8;
 242         if (!(Pico.video.reg[1]&8)) Pico.est.HighCol += 8*512;
 243
 244         if (dynamic_palette > 0)
 245                 dynamic_palette--;
 246
 247         if (Pico.m.dirtyPal)
 248                 do_pal_update(1, 1);
 249         if (!(Pico.video.reg[0xC] & 8))
 250              amips_clut_f = amips_clut_6bit;
 251         else amips_clut_f = amips_clut;
 252 }
 253
 254 static int EmuScanSlowBegin(unsigned int num)
 255 {
 256         if (!dynamic_palette)
 257                 Pico.est.HighCol = (unsigned char *)VRAM_CACHED_STUFF + num * 512 + 8;
 258
 259         return 0;
 260 }
 261
 262 static int EmuScanSlowEnd(unsigned int num)
 263 {
 264         if (Pico.m.dirtyPal) {
 265                 if (!dynamic_palette) {
 266                         do_slowmode_lines(num);
 267                         dynamic_palette = 3; // last for 2 more frames
 268                 }
 269                 do_pal_update(1, 1);
 270         }
 271
 272         if (dynamic_palette) {
 273                 int line_len = (Pico.video.reg[12]&1) ? 320 : 256;
 274                 void *dst = (char *)VRAM_STUFF + 512*240 + 512*2*num;
 275                 amips_clut_f(dst, Pico.est.HighCol + 8, localPal, line_len);
 276         }
 277
 278         return 0;
 279 }
 280
 281 static void blitscreen_clut(void)
 282 {
 283         int offs = fbimg_offs;
 284         offs += (psp_screen == VRAM_FB0) ? VRAMOFFS_FB0 : VRAMOFFS_FB1;
 285
 286         sceGuSync(0,0); // sync with prev
 287         sceGuStart(GU_DIRECT, guCmdList);
 288         sceGuDrawBuffer(GU_PSM_5650, (void *)offs, 512); // point to back buffer
 289
 290         if (dynamic_palette)
 291         {
 292                 if (!blit_16bit_mode) { // the current mode is not 16bit
 293                         sceGuTexMode(GU_PSM_5650, 0, 0, 0);
 294                         sceGuTexImage(0,512,512,512,(char *)VRAM_STUFF + 512*240);
 295
 296                         blit_16bit_mode = 1;
 297                 }
 298         }
 299         else
 300         {
 301                 if (blit_16bit_mode) {
 302                         sceGuClutMode(GU_PSM_5650,0,0xff,0);
 303                         sceGuTexMode(GU_PSM_T8,0,0,0); // 8-bit image
 304                         sceGuTexImage(0,512,512,512,(char *)VRAM_STUFF + 16);
 305                         blit_16bit_mode = 0;
 306                 }
 307
 308                 if ((PicoIn.opt&0x10) && Pico.m.dirtyPal)
 309                         do_pal_update(0, 0);
 310
 311                 sceKernelDcacheWritebackAll();
 312
 313                 if (need_pal_upload) {
 314                         need_pal_upload = 0;
 315                         sceGuClutLoad((256/8), localPal); // upload 32*8 entries (256)
 316                 }
 317         }
 318
 319 #if 1
 320         if (g_vertices[0].u == 0 && g_vertices[1].u == g_vertices[1].x)
 321         {
 322                 struct Vertex* vertices;
 323                 int x;
 324
 325                 #define SLICE_WIDTH 32
 326                 for (x = 0; x < g_vertices[1].x; x += SLICE_WIDTH)
 327                 {
 328                         // render sprite
 329                         vertices = (struct Vertex*)sceGuGetMemory(2 * sizeof(struct Vertex));
 330                         memcpy(vertices, g_vertices, 2 * sizeof(struct Vertex));
 331                         vertices[0].u = vertices[0].x = x;
 332                         vertices[1].u = vertices[1].x = x + SLICE_WIDTH;
 333                         sceGuDrawArray(GU_SPRITES,GU_TEXTURE_16BIT|GU_VERTEX_16BIT|GU_TRANSFORM_2D,2,0,vertices);
 334                 }
 335                 // lprintf("listlen: %iB\n", sceGuCheckList()); // ~480 only
 336         }
 337         else
 338 #endif
 339                 sceGuDrawArray(GU_SPRITES,GU_TEXTURE_16BIT|GU_VERTEX_16BIT|GU_TRANSFORM_2D,2,0,g_vertices);
 340
 341         sceGuFinish();
 342 }
 343
 344
 345 static void cd_leds(void)
 346 {
 347         unsigned int reg, col_g, col_r, *p;
 348
 349         reg = Pico_mcd->s68k_regs[0];
 350
 351         p = (unsigned int *)((short *)psp_screen + 512*2+4+2);
 352         col_g = (reg & 2) ? 0x06000600 : 0;
 353         col_r = (reg & 1) ? 0x00180018 : 0;
 354         *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 512/2 - 12/2;
 355         *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += 512/2 - 12/2;
 356         *p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
 357 }
 358
 359 static void draw_pico_ptr(void)
 360 {
 361         unsigned char *p = (unsigned char *)VRAM_STUFF + 16;
 362
 363         // only if pen enabled and for 8bit mode
 364         if (pico_inp_mode == 0 || blit_16bit_mode) return;
 365
 366         p += 512 * (pico_pen_y + PICO_PEN_ADJUST_Y);
 367         p += pico_pen_x + PICO_PEN_ADJUST_X;
 368         p[  -1] = 0xe0; p[   0] = 0xf0; p[   1] = 0xe0;
 369         p[ 511] = 0xf0; p[ 512] = 0xf0; p[ 513] = 0xf0;
 370         p[1023] = 0xe0; p[1024] = 0xf0; p[1025] = 0xe0;
 371 }
 372
 373
 374 #if 0
 375 static void dbg_text(void)
 376 {
 377         int *p, h, len;
 378         char text[128];
 379
 380         sprintf(text, "sl: %i, 16b: %i", g_vertices[0].u == 0 && g_vertices[1].u == g_vertices[1].x, blit_16bit_mode);
 381         len = strlen(text) * 8 / 2;
 382         for (h = 0; h < 8; h++) {
 383                 p = (int *) ((unsigned short *) psp_screen+2+512*(256+h));
 384                 p = (int *) ((int)p & ~3); // align
 385                 memset32_uncached(p, 0, len);
 386         }
 387         emu_text_out16(2, 256, text);
 388 }
 389 #endif
 390
 391 /* called after rendering is done, but frame emulation is not finished */
 392 void blit1(void)
 393 {
 394         if (PicoIn.opt&0x10)
 395         {
 396                 int i;
 397                 unsigned char *pd;
 398                 // clear top and bottom trash
 399                 for (pd = Pico.est.Draw2FB+8, i = 8; i > 0; i--, pd += 512)
 400                         memset32((int *)pd, 0xe0e0e0e0, 320/4);
 401                 for (pd = Pico.est.Draw2FB+512*232+8, i = 8; i > 0; i--, pd += 512)
 402                         memset32((int *)pd, 0xe0e0e0e0, 320/4);
 403         }
 404
 405         if (PicoIn.AHW & PAHW_PICO)
 406                 draw_pico_ptr();
 407
 408         blitscreen_clut();
 409 }
 410
 411
 412 static void blit2(const char *fps, const char *notice, int lagging_behind)
 413 {
 414         int vsync = 0, emu_opt = currentConfig.EmuOpt;
 415
 416         if (notice || (emu_opt & 2)) {
 417                 if (notice)      osd_text(4, notice, 0, 0);
 418                 if (emu_opt & 2) osd_text(OSD_FPS_X, fps, 0, 0);
 419         }
 420
 421         //dbg_text();
 422
 423         if ((emu_opt & 0x400) && (PicoIn.AHW & PAHW_MCD))
 424                 cd_leds();
 425
 426         if (currentConfig.EmuOpt & 0x2000) { // want vsync
 427                 if (!(currentConfig.EmuOpt & 0x10000) || !lagging_behind) vsync = 1;
 428         }
 429
 430         psp_video_flip(vsync);
 431 }
 432
 433 // clears whole screen or just the notice area (in all buffers)
 434 static void clearArea(int full)
 435 {
 436         if (full) {
 437                 memset32_uncached(psp_screen, 0, 512*272*2/4);
 438                 psp_video_flip(0);
 439                 memset32_uncached(psp_screen, 0, 512*272*2/4);
 440                 memset32(VRAM_CACHED_STUFF, 0xe0e0e0e0, 512*240/4);
 441                 memset32((int *)VRAM_CACHED_STUFF+512*240/4, 0, 512*240*2/4);
 442         } else {
 443                 void *fb = psp_video_get_active_fb();
 444                 memset32_uncached((int *)((char *)psp_screen + 512*264*2), 0, 512*8*2/4);
 445                 memset32_uncached((int *)((char *)fb         + 512*264*2), 0, 512*8*2/4);
 446         }
 447 }
 448
 449 static void vidResetMode(void)
 450 {
 451         // setup GU
 452         sceGuSync(0,0); // sync with prev
 453         sceGuStart(GU_DIRECT, guCmdList);
 454
 455         sceGuClutMode(GU_PSM_5650,0,0xff,0);
 456         sceGuTexMode(GU_PSM_T8,0,0,0); // 8-bit image
 457         sceGuTexFunc(GU_TFX_REPLACE,GU_TCC_RGB);
 458         if (currentConfig.scaling)
 459              sceGuTexFilter(GU_LINEAR, GU_LINEAR);
 460         else sceGuTexFilter(GU_NEAREST, GU_NEAREST);
 461         sceGuTexScale(1.0f,1.0f);
 462         sceGuTexOffset(0.0f,0.0f);
 463
 464         sceGuTexImage(0,512,512,512,(char *)VRAM_STUFF + 16);
 465
 466         // slow rend.
 467         PicoDrawSetOutFormat(PDF_NONE, 0);
 468         PicoDrawSetCallbacks(EmuScanSlowBegin, EmuScanSlowEnd);
 469
 470         localPal[0xe0] = 0;
 471         localPal[0xf0] = 0x001f;
 472         Pico.m.dirtyPal = 1;
 473         blit_16bit_mode = dynamic_palette = 0;
 474
 475         sceGuFinish();
 476         set_scaling_params();
 477         sceGuSync(0,0);
 478 }
 479
 480 void plat_debug_cat(char *str)
 481 {
 482         strcat(str, blit_16bit_mode ? "soft clut\n" : "hard clut\n");
 483 }
 484
 485
 486 /* sound stuff */
 487 #define SOUND_BLOCK_SIZE_NTSC (1470*2) // 1024 // 1152
 488 #define SOUND_BLOCK_SIZE_PAL  (1764*2)
 489 #define SOUND_BLOCK_COUNT    8
 490
 491 static short __attribute__((aligned(4))) sndBuffer[SOUND_BLOCK_SIZE_PAL*SOUND_BLOCK_COUNT + 44100/50*2];
 492 static short *snd_playptr = NULL, *sndBuffer_endptr = NULL;
 493 static int samples_made = 0, samples_done = 0, samples_block = 0;
 494 static int sound_thread_exit = 0;
 495 static SceUID sound_sem = -1;
 496
 497 static void writeSound(int len);
 498
 499 static int sound_thread(SceSize args, void *argp)
 500 {
 501         int ret = 0;
 502
 503         lprintf("sthr: started, priority %i\n", sceKernelGetThreadCurrentPriority());
 504
 505         while (!sound_thread_exit)
 506         {
 507                 if (samples_made - samples_done < samples_block) {
 508                         // wait for data (use at least 2 blocks)
 509                         //lprintf("sthr: wait... (%i)\n", samples_made - samples_done);
 510                         while (samples_made - samples_done <= samples_block*2 && !sound_thread_exit)
 511                                 ret = sceKernelWaitSema(sound_sem, 1, 0);
 512                         if (ret < 0) lprintf("sthr: sceKernelWaitSema: %i\n", ret);
 513                         continue;
 514                 }
 515
 516                 // lprintf("sthr: got data: %i\n", samples_made - samples_done);
 517
 518                 ret = sceAudio_E0727056(PSP_AUDIO_VOLUME_MAX, snd_playptr);
 519
 520                 samples_done += samples_block;
 521                 snd_playptr  += samples_block;
 522                 if (snd_playptr >= sndBuffer_endptr)
 523                         snd_playptr = sndBuffer;
 524                 // 1.5 kernel returns 0, newer ones return # of samples queued
 525                 if (ret < 0)
 526                         lprintf("sthr: sceAudio_E0727056: %08x; pos %i/%i\n", ret, samples_done, samples_made);
 527
 528                 // shouln't happen, but just in case
 529                 if (samples_made - samples_done >= samples_block*3) {
 530                         //lprintf("sthr: block skip (%i)\n", samples_made - samples_done);
 531                         samples_done += samples_block; // skip
 532                         snd_playptr  += samples_block;
 533                 }
 534
 535         }
 536
 537         lprintf("sthr: exit\n");
 538         sceKernelExitDeleteThread(0);
 539         return 0;
 540 }
 541
 542 static void sound_init(void)
 543 {
 544         SceUID thid;
 545         int ret;
 546
 547         sound_sem = sceKernelCreateSema("sndsem", 0, 0, 1, NULL);
 548         if (sound_sem < 0) lprintf("sceKernelCreateSema() failed: %i\n", sound_sem);
 549
 550         samples_made = samples_done = 0;
 551         samples_block = SOUND_BLOCK_SIZE_NTSC; // make sure it goes to sema
 552         sound_thread_exit = 0;
 553         thid = sceKernelCreateThread("sndthread", sound_thread, 0x12, 0x10000, 0, NULL);
 554         if (thid >= 0)
 555         {
 556                 ret = sceKernelStartThread(thid, 0, 0);
 557                 if (ret < 0) lprintf("sound_init: sceKernelStartThread returned %08x\n", ret);
 558         }
 559         else
 560                 lprintf("sceKernelCreateThread failed: %i\n", thid);
 561 }
 562
 563 void pemu_sound_start(void)
 564 {
 565         static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
 566         int ret, stereo;
 567
 568         samples_made = samples_done = 0;
 569
 570         if (PicoIn.sndRate != PsndRate_old || (PicoIn.opt&0x0b) != (PicoOpt_old&0x0b) || Pico.m.pal != pal_old) {
 571                 PsndRerate(Pico.m.frame_count ? 1 : 0);
 572         }
 573         stereo=(PicoIn.opt&8)>>3;
 574
 575         samples_block = Pico.m.pal ? SOUND_BLOCK_SIZE_PAL : SOUND_BLOCK_SIZE_NTSC;
 576         if (PicoIn.sndRate <= 22050) samples_block /= 2;
 577         sndBuffer_endptr = &sndBuffer[samples_block*SOUND_BLOCK_COUNT];
 578
 579         lprintf("starting audio: %i, len: %i, stereo: %i, pal: %i, block samples: %i\n",
 580                         PicoIn.sndRate, Pico.snd.len, stereo, Pico.m.pal, samples_block);
 581
 582         // while (sceAudioOutput2GetRestSample() > 0) psp_msleep(100);
 583         // sceAudio_5C37C0AE();
 584         ret = sceAudio_38553111(samples_block/2, PicoIn.sndRate, 2); // seems to not need that stupid 64byte alignment
 585         if (ret < 0) {
 586                 lprintf("sceAudio_38553111() failed: %i\n", ret);
 587                 emu_status_msg("sound init failed (%i), snd disabled", ret);
 588                 currentConfig.EmuOpt &= ~EOPT_EN_SOUND;
 589         } else {
 590                 PicoIn.writeSound = writeSound;
 591                 memset32((int *)(void *)sndBuffer, 0, sizeof(sndBuffer)/4);
 592                 snd_playptr = sndBuffer_endptr - samples_block;
 593                 samples_made = samples_block; // send 1 empty block first..
 594                 PicoIn.sndOut = sndBuffer;
 595                 PsndRate_old = PicoIn.sndRate;
 596                 PicoOpt_old  = PicoIn.opt;
 597                 pal_old = Pico.m.pal;
 598         }
 599 }
 600
 601 void pemu_sound_stop(void)
 602 {
 603         int i;
 604         if (samples_done == 0)
 605         {
 606                 // if no data is written between sceAudio_38553111 and sceAudio_5C37C0AE calls,
 607                 // we get a deadlock on next sceAudio_38553111 call
 608                 // so this is yet another workaround:
 609                 memset32((int *)(void *)sndBuffer, 0, samples_block*4/4);
 610                 samples_made = samples_block * 3;
 611                 sceKernelSignalSema(sound_sem, 1);
 612         }
 613         sceKernelDelayThread(100*1000);
 614         samples_made = samples_done = 0;
 615         for (i = 0; sceAudioOutput2GetRestSample() > 0 && i < 16; i++)
 616                 psp_msleep(100);
 617         sceAudio_5C37C0AE();
 618 }
 619
 620 /* wait until we can write more sound */
 621 void pemu_sound_wait(void)
 622 {
 623         // TODO: test this
 624         while (!sound_thread_exit && samples_made - samples_done > samples_block * 4)
 625                 psp_msleep(10);
 626 }
 627
 628 static void sound_deinit(void)
 629 {
 630         sound_thread_exit = 1;
 631         sceKernelSignalSema(sound_sem, 1);
 632         sceKernelDeleteSema(sound_sem);
 633         sound_sem = -1;
 634 }
 635
 636 static void writeSound(int len)
 637 {
 638         int ret;
 639
 640         PicoIn.sndOut += len / 2;
 641         /*if (PicoIn.sndOut > sndBuffer_endptr) {
 642                 memcpy32((int *)(void *)sndBuffer, (int *)endptr, (PicoIn.sndOut - endptr + 1) / 2);
 643                 PicoIn.sndOut = &sndBuffer[PicoIn.sndOut - endptr];
 644                 lprintf("mov\n");
 645         }
 646         else*/
 647         if (PicoIn.sndOut > sndBuffer_endptr) lprintf("snd oflow %i!\n", PicoIn.sndOut - sndBuffer_endptr);
 648         if (PicoIn.sndOut >= sndBuffer_endptr)
 649                 PicoIn.sndOut = sndBuffer;
 650
 651         // signal the snd thread
 652         samples_made += len / 2;
 653         if (samples_made - samples_done > samples_block*2) {
 654                 // lprintf("signal, %i/%i\n", samples_done, samples_made);
 655                 ret = sceKernelSignalSema(sound_sem, 1);
 656                 //if (ret < 0) lprintf("snd signal ret %08x\n", ret);
 657         }
 658 }
 659
 660
 661 static void SkipFrame(void)
 662 {
 663         PicoIn.skipFrame=1;
 664         PicoFrame();
 665         PicoIn.skipFrame=0;
 666 }
 667
 668 void pemu_forced_frame(int no_scale, int do_emu)
 669 {
 670         int po_old = PicoIn.opt;
 671         int eo_old = currentConfig.EmuOpt;
 672
 673         PicoIn.opt &= ~POPT_ALT_RENDERER;
 674         PicoIn.opt |= POPT_ACC_SPRITES;
 675         if (!no_scale)
 676                 PicoIn.opt |= POPT_EN_SOFTSCALE;
 677         currentConfig.EmuOpt |= 0x80;
 678
 679         vidResetMode();
 680         memset32(VRAM_CACHED_STUFF, 0xe0e0e0e0, 512*8/4); // borders
 681         memset32((int *)VRAM_CACHED_STUFF + 512*232/4, 0xe0e0e0e0, 512*8/4);
 682         memset32_uncached((int *)psp_screen + 512*264*2/4, 0, 512*8*2/4);
 683
 684         PicoDrawSetOutFormat(PDF_NONE, 0);
 685         PicoDrawSetCallbacks(EmuScanSlowBegin, EmuScanSlowEnd);
 686         EmuScanPrepare();
 687         PicoFrameDrawOnly();
 688         blit1();
 689         sceGuSync(0,0);
 690
 691         PicoIn.opt = po_old;
 692         currentConfig.EmuOpt = eo_old;
 693 }
 694
 695
 696 static void RunEventsPico(unsigned int events, unsigned int keys)
 697 {
 698         emu_RunEventsPico(events);
 699
 700         if (pico_inp_mode != 0)
 701         {
 702                 PicoIn.pad[0] &= ~0x0f; // release UDLR
 703                 if (keys & PBTN_UP)   { pico_pen_y--; if (pico_pen_y < 8) pico_pen_y = 8; }
 704                 if (keys & PBTN_DOWN) { pico_pen_y++; if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y; }
 705                 if (keys & PBTN_LEFT) { pico_pen_x--; if (pico_pen_x < 0) pico_pen_x = 0; }
 706                 if (keys & PBTN_RIGHT) {
 707                         int lim = (Pico.video.reg[12]&1) ? 319 : 255;
 708                         pico_pen_x++;
 709                         if (pico_pen_x > lim-PICO_PEN_ADJUST_X)
 710                                 pico_pen_x = lim-PICO_PEN_ADJUST_X;
 711                 }
 712                 PicoPicohw.pen_pos[0] = pico_pen_x;
 713                 if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;
 714                 PicoPicohw.pen_pos[0] += 0x3c;
 715                 PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
 716         }
 717 }
 718
 719 static void RunEvents(unsigned int which)
 720 {
 721         if (which & 0x1800) // save or load (but not both)
 722         {
 723                 int do_it = 1;
 724
 725                 if ( emu_check_save_file(state_slot) &&
 726                                 (( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) || // load
 727                                  (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) // save
 728                 {
 729                         int keys;
 730                         sceGuSync(0,0);
 731                         blit2("", (which & 0x1000) ? "LOAD STATE? (X=yes, O=no)" : "OVERWRITE SAVE? (X=yes, O=no)", 0);
 732                         while( !((keys = psp_pad_read(1)) & (PBTN_X|PBTN_CIRCLE)) )
 733                                 psp_msleep(50);
 734                         if (keys & PBTN_CIRCLE) do_it = 0;
 735                         while(  ((keys = psp_pad_read(1)) & (PBTN_X|PBTN_CIRCLE)) ) // wait for release
 736                                 psp_msleep(50);
 737                         clearArea(0);
 738                 }
 739
 740                 if (do_it)
 741                 {
 742                         osd_text(4, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME", 1, 0);
 743                         PicoStateProgressCB = emu_msg_cb;
 744                         emu_save_load_game((which & 0x1000) >> 12, 0);
 745                         PicoStateProgressCB = NULL;
 746                         psp_msleep(0);
 747                 }
 748
 749                 reset_timing = 1;
 750         }
 751         if (which & 0x0400) // switch renderer
 752         {
 753                 if (PicoIn.opt&0x10) { PicoIn.opt&=~0x10; currentConfig.EmuOpt |=  0x80; }
 754                 else              { PicoIn.opt|= 0x10; currentConfig.EmuOpt &= ~0x80; }
 755
 756                 vidResetMode();
 757
 758                 if (PicoIn.opt & POPT_ALT_RENDERER)
 759                         emu_status_msg("fast renderer");
 760                 else if (currentConfig.EmuOpt&0x80)
 761                         emu_status_msg("accurate renderer");
 762         }
 763         if (which & 0x0300)
 764         {
 765                 if(which&0x0200) {
 766                         state_slot -= 1;
 767                         if(state_slot < 0) state_slot = 9;
 768                 } else {
 769                         state_slot += 1;
 770                         if(state_slot > 9) state_slot = 0;
 771                 }
 772                 emu_status_msg("SAVE SLOT %i [%s]", state_slot,
 773                         emu_check_save_file(state_slot) ? "USED" : "FREE");
 774         }
 775 }
 776
 777 static void updateKeys(void)
 778 {
 779         unsigned int keys, allActions[2] = { 0, 0 }, events;
 780         static unsigned int prevEvents = 0;
 781         int i;
 782
 783         /* FIXME: port to input fw, merge with emu.c:emu_update_input() */
 784         keys = psp_pad_read(0);
 785         if (keys & PSP_CTRL_HOME)
 786                 sceDisplayWaitVblankStart();
 787
 788         if (keys & PBTN_SELECT)
 789                 engineState = PGS_Menu;
 790
 791         keys &= CONFIGURABLE_KEYS;
 792
 793         PicoIn.pad[0] = allActions[0] & 0xfff;
 794         PicoIn.pad[1] = allActions[1] & 0xfff;
 795
 796         if (allActions[0] & 0x7000) emu_DoTurbo(&PicoIn.pad[0], allActions[0]);
 797         if (allActions[1] & 0x7000) emu_DoTurbo(&PicoIn.pad[1], allActions[1]);
 798
 799         events = (allActions[0] | allActions[1]) >> 16;
 800
 801         if ((events ^ prevEvents) & 0x40) {
 802                 emu_set_fastforward(events & 0x40);
 803                 reset_timing = 1;
 804         }
 805
 806         events &= ~prevEvents;
 807
 808         if (PicoIn.AHW == PAHW_PICO)
 809                 RunEventsPico(events, keys);
 810         if (events) RunEvents(events);
 811         if (movie_data) emu_updateMovie();
 812
 813         prevEvents = (allActions[0] | allActions[1]) >> 16;
 814 }
 815
 816
 817 static void simpleWait(unsigned int until)
 818 {
 819         unsigned int tval;
 820         int diff;
 821
 822         tval = sceKernelGetSystemTimeLow();
 823         diff = (int)until - (int)tval;
 824         if (diff >= 512 && diff < 100*1024)
 825                 sceKernelDelayThread(diff);
 826 }
 827
 828 void pemu_loop(void)
 829 {
 830         static int mp3_init_done = 0;
 831         char fpsbuff[24]; // fps count c string
 832         unsigned int tval, tval_thissec = 0; // timing
 833         int target_fps, target_frametime, lim_time, tval_diff, i, oldmodes = 0;
 834         int pframes_done, pframes_shown; // "period" frames, used for sync
 835         int  frames_done,  frames_shown, tval_fpsc = 0; // actual frames
 836         char *notice = NULL;
 837
 838         lprintf("entered emu_Loop()\n");
 839
 840         fpsbuff[0] = 0;
 841
 842         if (currentConfig.CPUclock != psp_get_cpu_clock()) {
 843                 lprintf("setting cpu clock to %iMHz... ", currentConfig.CPUclock);
 844                 i = psp_set_cpu_clock(currentConfig.CPUclock);
 845                 lprintf(i ? "failed\n" : "done\n");
 846                 currentConfig.CPUclock = psp_get_cpu_clock();
 847         }
 848
 849         // make sure we are in correct mode
 850         vidResetMode();
 851         clearArea(1);
 852         Pico.m.dirtyPal = 1;
 853         oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
 854
 855         // pal/ntsc might have changed, reset related stuff
 856         target_fps = Pico.m.pal ? 50 : 60;
 857         target_frametime = Pico.m.pal ? (1000000<<8)/50 : (1000000<<8)/60+1;
 858         reset_timing = 1;
 859
 860         if (PicoIn.AHW & PAHW_MCD) {
 861                 // prepare CD buffer
 862                 PicoCDBufferInit();
 863                 // mp3...
 864                 if (!mp3_init_done) {
 865                         i = mp3_init();
 866                         mp3_init_done = 1;
 867                         if (i) { engineState = PGS_Menu; return; }
 868                 }
 869         }
 870
 871         // prepare sound stuff
 872         PicoIn.sndOut = NULL;
 873         if (currentConfig.EmuOpt & EOPT_EN_SOUND)
 874         {
 875                 pemu_sound_start();
 876         }
 877
 878         sceDisplayWaitVblankStart();
 879         pframes_shown = pframes_done =
 880          frames_shown =  frames_done = 0;
 881
 882         tval_fpsc = sceKernelGetSystemTimeLow();
 883
 884         // loop?
 885         while (engineState == PGS_Running)
 886         {
 887                 int modes;
 888
 889                 tval = sceKernelGetSystemTimeLow();
 890                 if (reset_timing || tval < tval_fpsc) {
 891                         //stdbg("timing reset");
 892                         reset_timing = 0;
 893                         tval_thissec = tval;
 894                         pframes_shown = pframes_done = 0;
 895                 }
 896
 897                 // show notice message?
 898                 if (noticeMsgTime) {
 899                         static int noticeMsgSum;
 900                         if (tval - noticeMsgTime > 2000000) { // > 2.0 sec
 901                                 noticeMsgTime = 0;
 902                                 clearArea(0);
 903                                 notice = 0;
 904                         } else {
 905                                 int sum = noticeMsg[0]+noticeMsg[1]+noticeMsg[2];
 906                                 if (sum != noticeMsgSum) { clearArea(0); noticeMsgSum = sum; }
 907                                 notice = noticeMsg;
 908                         }
 909                 }
 910
 911                 // check for mode changes
 912                 modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
 913                 if (modes != oldmodes) {
 914                         oldmodes = modes;
 915                         clearArea(1);
 916                         set_scaling_params();
 917                 }
 918
 919                 // second passed?
 920                 if (tval - tval_fpsc >= 1000000)
 921                 {
 922                         if (currentConfig.EmuOpt & 2)
 923                                 sprintf(fpsbuff, "%02i/%02i  ", frames_shown, frames_done);
 924                         frames_done = frames_shown = 0;
 925                         tval_fpsc += 1000000;
 926                 }
 927
 928                 if (tval - tval_thissec >= 1000000)
 929                 {
 930                         // missing 1 frame?
 931                         if (currentConfig.Frameskip < 0 && pframes_done < target_fps) {
 932                                 SkipFrame(); pframes_done++; frames_done++;
 933                         }
 934
 935                         tval_thissec += 1000000;
 936
 937                         if (currentConfig.Frameskip < 0) {
 938                                 pframes_done  -= target_fps; if (pframes_done  < 0) pframes_done  = 0;
 939                                 pframes_shown -= target_fps; if (pframes_shown < 0) pframes_shown = 0;
 940                                 if (pframes_shown > pframes_done) pframes_shown = pframes_done;
 941                         } else {
 942                                 pframes_done = pframes_shown = 0;
 943                         }
 944                 }
 945 #ifdef PFRAMES
 946                 sprintf(fpsbuff, "%i", Pico.m.frame_count);
 947 #endif
 948
 949                 lim_time = (pframes_done+1) * target_frametime;
 950                 if (currentConfig.Frameskip >= 0) // frameskip enabled
 951                 {
 952                         for (i = 0; i < currentConfig.Frameskip; i++) {
 953                                 updateKeys();
 954                                 SkipFrame(); pframes_done++; frames_done++;
 955                                 if (!(currentConfig.EmuOpt&0x40000)) { // do framelimitting if needed
 956                                         int tval_diff;
 957                                         tval = sceKernelGetSystemTimeLow();
 958                                         tval_diff = (int)(tval - tval_thissec) << 8;
 959                                         if (tval_diff < lim_time) // we are too fast
 960                                                 simpleWait(tval + ((lim_time - tval_diff)>>8));
 961                                 }
 962                                 lim_time += target_frametime;
 963                         }
 964                 }
 965                 else // auto frameskip
 966                 {
 967                         int tval_diff;
 968                         tval = sceKernelGetSystemTimeLow();
 969                         tval_diff = (int)(tval - tval_thissec) << 8;
 970                         if (tval_diff > lim_time && (pframes_done/16 < pframes_shown))
 971                         {
 972                                 // no time left for this frame - skip
 973                                 if (tval_diff - lim_time >= (300000<<8)) {
 974                                         reset_timing = 1;
 975                                         continue;
 976                                 }
 977                                 updateKeys();
 978                                 SkipFrame(); pframes_done++; frames_done++;
 979                                 continue;
 980                         }
 981                 }
 982
 983                 updateKeys();
 984
 985                 if (!(PicoIn.opt&0x10))
 986                         EmuScanPrepare();
 987
 988                 PicoFrame();
 989
 990                 sceGuSync(0,0);
 991
 992                 // check time
 993                 tval = sceKernelGetSystemTimeLow();
 994                 tval_diff = (int)(tval - tval_thissec) << 8;
 995
 996                 blit2(fpsbuff, notice, tval_diff > lim_time);
 997
 998                 if (currentConfig.Frameskip < 0 && tval_diff - lim_time >= (300000<<8)) { // slowdown detection
 999                         reset_timing = 1;
1000                 }
1001                 else if (!(currentConfig.EmuOpt&0x40000) || currentConfig.Frameskip < 0)
1002                 {
1003                         // sleep if we are still too fast
1004                         if (tval_diff < lim_time)
1005                         {
1006                                 // we are too fast
1007                                 simpleWait(tval + ((lim_time - tval_diff) >> 8));
1008                         }
1009                 }
1010
1011                 pframes_done++; pframes_shown++;
1012                  frames_done++;  frames_shown++;
1013         }
1014
1015
1016         emu_set_fastforward(0);
1017
1018         if (PicoIn.AHW & PAHW_MCD) PicoCDBufferFree();
1019
1020         if (PicoIn.sndOut != NULL) {
1021                 pemu_sound_stop();
1022                 PicoIn.sndOut = NULL;
1023         }
1024
1025         // save SRAM
1026         if ((currentConfig.EmuOpt & 1) && SRam.changed) {
1027                 emu_msg_cb("Writing SRAM/BRAM..");
1028                 emu_save_load_game(0, 1);
1029                 SRam.changed = 0;
1030         }
1031
1032         // clear fps counters and stuff
1033         memset32_uncached((int *)psp_video_get_active_fb() + 512*264*2/4, 0, 512*8*2/4);
1034 }
1035
1036 void emu_HandleResume(void)
1037 {
1038         if (!(PicoIn.AHW & PAHW_MCD)) return;
1039
1040         // reopen first CD track
1041         if (Pico_mcd->TOC.Tracks[0].F != NULL)
1042         {
1043                 char *fname = rom_fname_reload;
1044                 int len = strlen(rom_fname_reload);
1045                 cue_data_t *cue_data = NULL;
1046
1047                 if (len > 4 && strcasecmp(fname + len - 4,  ".cue") == 0)
1048                 {
1049                         cue_data = cue_parse(rom_fname_reload);
1050                         if (cue_data != NULL)
1051                                 fname = cue_data->tracks[1].fname;
1052                 }
1053
1054                 lprintf("emu_HandleResume: reopen %s\n", fname);
1055                 pm_close(Pico_mcd->TOC.Tracks[0].F);
1056                 Pico_mcd->TOC.Tracks[0].F = pm_open(fname);
1057                 lprintf("reopen %s\n", Pico_mcd->TOC.Tracks[0].F != NULL ? "ok" : "failed");
1058
1059                 if (cue_data != NULL) cue_destroy(cue_data);
1060         }
1061
1062         mp3_reopen_file();
1063
1064         if (!(Pico_mcd->s68k_regs[0x36] & 1) && (Pico_mcd->scd.Status_CDC & 1))
1065                 cdda_start_play();
1066 }
1067