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