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fix DrawSpritesHiAS
[picodrive.git] / platform / psp / emu.c
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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
33int sceAudio_38553111(unsigned short samples, unsigned short freq, char unknown); // play with conversion?
34int sceAudio_5C37C0AE(void); // end play?
35int sceAudio_E0727056(int volume, void *buffer); // blocking output
36int sceAudioOutput2GetRestSample();
37
38
39//unsigned char *Draw2FB = (unsigned char *)VRAM_CACHED_STUFF + 8; // +8 to be able to skip border with 1 quadword..
40int engineStateSuspend;
41
42#define PICO_PEN_ADJUST_X 4
43#define PICO_PEN_ADJUST_Y 2
44static int pico_pen_x = 320/2, pico_pen_y = 240/2;
45
46static void sound_init(void);
47static void sound_deinit(void);
48static void blit2(const char *fps, const char *notice, int lagging_behind);
49static void clearArea(int full);
50
51int plat_get_root_dir(char *dst, int len)
52{
53 if (len > 0) *dst = 0;
54 return 0;
55}
56
57static 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
73void 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 */
83void emu_Init(void)
84{
85 sound_init();
86}
87
88void emu_Deinit(void)
89{
90 sound_deinit();
91}
92
93void 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
120extern void amips_clut(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);
121extern void amips_clut_6bit(unsigned short *dst, unsigned char *src, unsigned short *pal, int count);
122
123static void (*amips_clut_f)(unsigned short *dst, unsigned char *src, unsigned short *pal, int count) = NULL;
124
125struct Vertex
126{
127 short u,v;
128 short x,y,z;
129};
130
131static struct Vertex __attribute__((aligned(4))) g_vertices[2];
132static unsigned short __attribute__((aligned(16))) localPal[0x100];
133static int dynamic_palette = 0, need_pal_upload = 0, blit_16bit_mode = 0;
134static int fbimg_offs = 0;
135
136static 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
197static 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
228static 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
239static 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
254static 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
262static 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
281static 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
345static 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
359static 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
375static 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 */
392void 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
412static 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)
434static 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
449static 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
480void 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
491static short __attribute__((aligned(4))) sndBuffer[SOUND_BLOCK_SIZE_PAL*SOUND_BLOCK_COUNT + 44100/50*2];
492static short *snd_playptr = NULL, *sndBuffer_endptr = NULL;
493static int samples_made = 0, samples_done = 0, samples_block = 0;
494static int sound_thread_exit = 0;
495static SceUID sound_sem = -1;
496
497static void writeSound(int len);
498
499static 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
542static 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
563void 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
601void 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 */
621void 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
628static 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
636static 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
661static void SkipFrame(void)
662{
663 PicoIn.skipFrame=1;
664 PicoFrame();
665 PicoIn.skipFrame=0;
666}
667
668void 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
696static 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
719static 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
777static 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
817static 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
828void 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
1036void 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
fast MegaDrive/MegaCD/32X emulator