linux/io.c

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