platform/linux/io.c

   1 /*
   2  * PicoDrive
   3  * (C) notaz, 2007-2010
   4  *
   5  * This work is licensed under the terms of MAME license.
   6  * See COPYING file in the top-level directory.
   7  */
   8 #include <stdio.h>
   9 #include <stdlib.h>
  10 #include <string.h>
  11
  12 #include "../libpicofe/menu.h"
  13 #include "../libpicofe/input.h"
  14 #include "../common/emu.h"
  15 #include "../common/input_pico.h"
  16 #include "version.h"
  17
  18 #include "log_io.h"
  19
  20 int current_keys;
  21 unsigned char *PicoDraw2FB;
  22
  23 #ifdef FBDEV
  24
  25 #include "fbdev.h"
  26
  27 #else
  28
  29 #include <pthread.h>
  30 #include <semaphore.h>
  31
  32 static int current_bpp = 16;
  33 static int current_pal[256];
  34 static const char *verstring = "PicoDrive " VERSION;
  35 static int scr_changed = 0, scr_w = SCREEN_WIDTH, scr_h = SCREEN_HEIGHT;
  36
  37 /* faking GP2X pad */
  38 enum  { GP2X_UP=0x1,       GP2X_LEFT=0x4,       GP2X_DOWN=0x10,  GP2X_RIGHT=0x40,
  39         GP2X_START=1<<8,   GP2X_SELECT=1<<9,    GP2X_L=1<<10,    GP2X_R=1<<11,
  40         GP2X_A=1<<12,      GP2X_B=1<<13,        GP2X_X=1<<14,    GP2X_Y=1<<15,
  41         GP2X_VOL_UP=1<<23, GP2X_VOL_DOWN=1<<22, GP2X_PUSH=1<<27 };
  42
  43 static void key_press_event(int keycode)
  44 {
  45         switch (keycode)
  46         {
  47                 case 111:
  48                 case 0x62: current_keys |= GP2X_UP;    break;
  49                 case 116:
  50                 case 0x68: current_keys |= GP2X_DOWN;  break;
  51                 case 113:
  52                 case 0x64: current_keys |= GP2X_LEFT;  break;
  53                 case 114:
  54                 case 0x66: current_keys |= GP2X_RIGHT; break;
  55                 case 0x24: current_keys |= GP2X_START; break; // enter
  56                 case 0x23: current_keys |= GP2X_SELECT;break; // ]
  57                 case 0x34: current_keys |= GP2X_A;     break; // z
  58                 case 0x35: current_keys |= GP2X_X;     break; // x
  59                 case 0x36: current_keys |= GP2X_B;     break; // c
  60                 case 0x37: current_keys |= GP2X_Y;     break; // v
  61                 case 0x27: current_keys |= GP2X_L;     break; // s
  62                 case 0x28: current_keys |= GP2X_R;     break; // d
  63                 case 0x29: current_keys |= GP2X_PUSH;  break; // f
  64                 case 0x18: current_keys |= GP2X_VOL_DOWN;break; // q
  65                 case 0x19: current_keys |= GP2X_VOL_UP;break; // w
  66                 case 0x2d: log_io_clear(); break; // k
  67                 case 0x2e: log_io_dump();  break; // l
  68                 case 0x17: { // tab
  69                         extern int PicoReset(void);
  70                         PicoReset();
  71                         break;
  72                 }
  73         }
  74 }
  75
  76 static void key_release_event(int keycode)
  77 {
  78         switch (keycode)
  79         {
  80                 case 111:
  81                 case 0x62: current_keys &= ~GP2X_UP;    break;
  82                 case 116:
  83                 case 0x68: current_keys &= ~GP2X_DOWN;  break;
  84                 case 113:
  85                 case 0x64: current_keys &= ~GP2X_LEFT;  break;
  86                 case 114:
  87                 case 0x66: current_keys &= ~GP2X_RIGHT; break;
  88                 case 0x24: current_keys &= ~GP2X_START; break; // enter
  89                 case 0x23: current_keys &= ~GP2X_SELECT;break; // ]
  90                 case 0x34: current_keys &= ~GP2X_A;     break; // z
  91                 case 0x35: current_keys &= ~GP2X_X;     break; // x
  92                 case 0x36: current_keys &= ~GP2X_B;     break; // c
  93                 case 0x37: current_keys &= ~GP2X_Y;     break; // v
  94                 case 0x27: current_keys &= ~GP2X_L;     break; // s
  95                 case 0x28: current_keys &= ~GP2X_R;     break; // d
  96                 case 0x29: current_keys &= ~GP2X_PUSH;  break; // f
  97                 case 0x18: current_keys &= ~GP2X_VOL_DOWN;break; // q
  98                 case 0x19: current_keys &= ~GP2X_VOL_UP;break; // w
  99         }
 100 }
 101
 102 /* --- */
 103
 104 #include <X11/Xlib.h>
 105 #include <X11/Xutil.h>
 106
 107 static Display *xlib_display;
 108 static Window xlib_window;
 109 static XImage *ximage;
 110
 111 static void ximage_realloc(Display *display, Visual *visual)
 112 {
 113         void *xlib_screen;
 114
 115         XLockDisplay(xlib_display);
 116
 117         if (ximage != NULL)
 118                 XDestroyImage(ximage);
 119         ximage = NULL;
 120
 121         xlib_screen = calloc(scr_w * scr_h, 4);
 122         if (xlib_screen != NULL)
 123                 ximage = XCreateImage(display, visual, 24, ZPixmap, 0,
 124                                 xlib_screen, scr_w, scr_h, 32, 0);
 125         if (ximage == NULL)
 126                 fprintf(stderr, "failed to alloc ximage\n");
 127
 128         XUnlockDisplay(xlib_display);
 129 }
 130
 131 static void xlib_update(void)
 132 {
 133         Status xstatus;
 134
 135         XLockDisplay(xlib_display);
 136
 137         xstatus = XPutImage(xlib_display, xlib_window, DefaultGC(xlib_display, 0), ximage,
 138                 0, 0, 0, 0, g_screen_width, g_screen_height);
 139         if (xstatus != 0)
 140                 fprintf(stderr, "XPutImage %d\n", xstatus);
 141
 142         XUnlockDisplay(xlib_display);
 143 }
 144
 145 static void *xlib_threadf(void *targ)
 146 {
 147         unsigned int width, height, display_width, display_height;
 148         sem_t *sem = targ;
 149         XTextProperty windowName;
 150         Window win;
 151         XEvent report;
 152         Display *display;
 153         Visual *visual;
 154         int screen;
 155
 156         XInitThreads();
 157
 158         xlib_display = display = XOpenDisplay(NULL);
 159         if (display == NULL)
 160         {
 161                 fprintf(stderr, "cannot connect to X server %s\n",
 162                                 XDisplayName(NULL));
 163                 sem_post(sem);
 164                 return NULL;
 165         }
 166
 167         visual = DefaultVisual(display, 0);
 168         if (visual->class != TrueColor)
 169         {
 170                 fprintf(stderr, "cannot handle non true color visual\n");
 171                 XCloseDisplay(display);
 172                 sem_post(sem);
 173                 return NULL;
 174         }
 175
 176         printf("X vendor: %s, rel: %d, display: %s, protocol ver: %d.%d\n", ServerVendor(display),
 177                 VendorRelease(display), DisplayString(display), ProtocolVersion(display),
 178                 ProtocolRevision(display));
 179
 180         screen = DefaultScreen(display);
 181
 182         ximage_realloc(display, visual);
 183         sem_post(sem);
 184
 185         display_width = DisplayWidth(display, screen);
 186         display_height = DisplayHeight(display, screen);
 187
 188         xlib_window = win = XCreateSimpleWindow(display,
 189                         RootWindow(display, screen),
 190                         display_width / 2 - scr_w / 2,
 191                         display_height / 2 - scr_h / 2,
 192                         scr_w + 2, scr_h + 2, 1,
 193                         BlackPixel(display, screen),
 194                         BlackPixel(display, screen));
 195
 196         XStringListToTextProperty((char **)&verstring, 1, &windowName);
 197         XSetWMName(display, win, &windowName);
 198
 199         XSelectInput(display, win, ExposureMask |
 200                         KeyPressMask | KeyReleaseMask |
 201                         StructureNotifyMask);
 202
 203         XMapWindow(display, win);
 204
 205         while (1)
 206         {
 207                 XNextEvent(display, &report);
 208                 switch (report.type)
 209                 {
 210                         case Expose:
 211                                 while (XCheckTypedEvent(display, Expose, &report))
 212                                         ;
 213                                 xlib_update();
 214                                 break;
 215
 216                         case ConfigureNotify:
 217                                 width = report.xconfigure.width;
 218                                 height = report.xconfigure.height;
 219                                 if (scr_w != width - 2 || scr_h != height - 2) {
 220                                         scr_w = width - 2;
 221                                         scr_h = height - 2;
 222                                         scr_changed = 1;
 223                                 }
 224                                 break;
 225
 226                         case ButtonPress:
 227                                 break;
 228
 229                         case KeyPress:
 230                                 key_press_event(report.xkey.keycode);
 231                                 break;
 232
 233                         case KeyRelease:
 234                                 key_release_event(report.xkey.keycode);
 235                                 break;
 236
 237                         default:
 238                                 break;
 239                 }
 240         }
 241 }
 242
 243 static void xlib_init(void)
 244 {
 245         pthread_t x_thread;
 246         sem_t xlib_sem;
 247
 248         sem_init(&xlib_sem, 0, 0);
 249
 250         pthread_create(&x_thread, NULL, xlib_threadf, &xlib_sem);
 251         pthread_detach(x_thread);
 252
 253         sem_wait(&xlib_sem);
 254         sem_destroy(&xlib_sem);
 255 }
 256
 257 /* --- */
 258
 259 static void realloc_screen(void)
 260 {
 261         int size = scr_w * scr_h * 2;
 262         g_screen_width = g_menuscreen_w = scr_w;
 263         g_screen_height = g_menuscreen_h = scr_h;
 264         g_screen_ptr = realloc(g_screen_ptr, size);
 265         g_menubg_ptr = realloc(g_menubg_ptr, size);
 266         memset(g_screen_ptr, 0, size);
 267         memset(g_menubg_ptr, 0, size);
 268         PicoDraw2FB = g_menubg_ptr;
 269         scr_changed = 0;
 270 }
 271
 272 void plat_video_flip(void)
 273 {
 274         unsigned int *image;
 275         int pixel_count, i;
 276
 277         if (ximage == NULL)
 278                 return;
 279
 280         pixel_count = g_screen_width * g_screen_height;
 281         image = (void *)ximage->data;
 282
 283         if (current_bpp == 8)
 284         {
 285                 unsigned char *pixels = g_screen_ptr;
 286                 int pix;
 287
 288                 for (i = 0; i < pixel_count; i++)
 289                 {
 290                         pix = current_pal[pixels[i]];
 291                         image[i] = pix;
 292                 }
 293         }
 294         else
 295         {
 296                 unsigned short *pixels = g_screen_ptr;
 297
 298                 for (i = 0; i < pixel_count; i++)
 299                 {
 300                         /*  in:           rrrr rggg gggb bbbb */
 301                         /* out: rrrr r000 gggg gg00 bbbb b000 */
 302                         image[i]  = (pixels[i] << 8) & 0xf80000;
 303                         image[i] |= (pixels[i] << 5) & 0x00fc00;
 304                         image[i] |= (pixels[i] << 3) & 0x0000f8;
 305                 }
 306         }
 307         xlib_update();
 308
 309         if (scr_changed) {
 310                 realloc_screen();
 311                 ximage_realloc(xlib_display, DefaultVisual(xlib_display, 0));
 312
 313                 // propagate new ponters to renderers
 314                 plat_video_toggle_renderer(0, 0);
 315         }
 316 }
 317
 318 void plat_video_wait_vsync(void)
 319 {
 320 }
 321
 322 #endif // !FBDEV
 323
 324 void plat_early_init(void)
 325 {
 326 }
 327
 328 void plat_init(void)
 329 {
 330 #ifdef FBDEV
 331         int ret, w, h;
 332         ret = vout_fbdev_init(&w, &h);
 333         if (ret != 0)
 334                 exit(1);
 335         g_screen_width = g_menuscreen_w = w;
 336         g_screen_height = g_menuscreen_h = h;
 337         g_menubg_ptr = realloc(g_menubg_ptr, w * g_screen_height * 2);
 338         PicoDraw2FB = g_menubg_ptr;
 339 #else
 340         realloc_screen();
 341         memset(g_screen_ptr, 0, g_screen_width * g_screen_height * 2);
 342         xlib_init();
 343 #endif
 344 }
 345
 346 void plat_finish(void)
 347 {
 348 #ifdef FBDEV
 349         vout_fbdev_finish();
 350 #else
 351         free(g_screen_ptr);
 352 #endif
 353 }
 354
 355 /* misc */
 356 int mp3_get_bitrate(void *f, int size)
 357 {
 358         return 128;
 359 }
 360
 361 void mp3_start_play(void *f, int pos)
 362 {
 363 }
 364
 365 void mp3_update(int *buffer, int length, int stereo)
 366 {
 367 }
 368
 369 #include <linux/input.h>
 370
 371 struct in_default_bind in_evdev_defbinds[] =
 372 {
 373         /* MXYZ SACB RLDU */
 374         { KEY_UP,       IN_BINDTYPE_PLAYER12, 0 },
 375         { KEY_DOWN,     IN_BINDTYPE_PLAYER12, 1 },
 376         { KEY_LEFT,     IN_BINDTYPE_PLAYER12, 2 },
 377         { KEY_RIGHT,    IN_BINDTYPE_PLAYER12, 3 },
 378         { KEY_S,        IN_BINDTYPE_PLAYER12, 4 },      /* B */
 379         { KEY_D,        IN_BINDTYPE_PLAYER12, 5 },      /* C */
 380         { KEY_A,        IN_BINDTYPE_PLAYER12, 6 },      /* A */
 381         { KEY_ENTER,    IN_BINDTYPE_PLAYER12, 7 },
 382         { KEY_BACKSLASH, IN_BINDTYPE_EMU, PEVB_MENU },
 383         { 0, 0, 0 }
 384 };
 385