linux/gp2x.c

   1 /* faking/emulating gp2x.c by using gtk */
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <pthread.h>
   6 #include <semaphore.h>
   7 #include <gtk/gtk.h>
   8
   9 #include <unistd.h>
  10 #include <sys/types.h>
  11 #include <sys/stat.h>
  12 #include <fcntl.h>
  13 #include <errno.h>
  14
  15 #include "../gp2x/emu.h"
  16 #include "../gp2x/gp2x.h"
  17 #include "../gp2x/version.h"
  18 #include "sndout_oss.h"
  19 #include "usbjoy.h"
  20
  21 #include "log_io.h"
  22
  23 void *gp2x_screen;
  24 unsigned long current_keys = 0;
  25 static int current_bpp = 8;
  26 static int current_pal[256];
  27 static const char *verstring = "PicoDrive " VERSION;
  28
  29 // dummies
  30 char *ext_menu = 0, *ext_state = 0;
  31 int mix_32_to_16l_level;
  32
  33 /* gtk */
  34 struct gtk_global_struct
  35 {
  36         GtkWidget *window;
  37         GtkWidget *pixmap1;
  38 } gtk_items;
  39
  40
  41 static gboolean delete_event (GtkWidget *widget, GdkEvent *event, gpointer data)
  42 {
  43         return FALSE;
  44 }
  45
  46 static void destroy (GtkWidget *widget, gpointer data)
  47 {
  48         gtk_main_quit ();
  49 }
  50
  51 static gint key_press_event (GtkWidget *widget, GdkEventKey *event)
  52 {
  53         switch (event->hardware_keycode)
  54         {
  55                 case 111:
  56                 case 0x62: current_keys |= GP2X_UP;    break;
  57                 case 116:
  58                 case 0x68: current_keys |= GP2X_DOWN;  break;
  59                 case 113:
  60                 case 0x64: current_keys |= GP2X_LEFT;  break;
  61                 case 114:
  62                 case 0x66: current_keys |= GP2X_RIGHT; break;
  63                 case 0x24: current_keys |= GP2X_START; break; // enter
  64                 case 0x23: current_keys |= GP2X_SELECT;break; // ]
  65                 case 0x34: current_keys |= GP2X_A;     break; // z
  66                 case 0x35: current_keys |= GP2X_X;     break; // x
  67                 case 0x36: current_keys |= GP2X_B;     break; // c
  68                 case 0x37: current_keys |= GP2X_Y;     break; // v
  69                 case 0x27: current_keys |= GP2X_L;     break; // s
  70                 case 0x28: current_keys |= GP2X_R;     break; // d
  71                 case 0x29: current_keys |= GP2X_PUSH;  break; // f
  72                 case 0x18: current_keys |= GP2X_VOL_DOWN;break; // q
  73                 case 0x19: current_keys |= GP2X_VOL_UP;break; // w
  74                 case 0x2d: log_io_clear(); break; // k
  75                 case 0x2e: log_io_dump();  break; // l
  76                 case 0x17: { // tab
  77                         extern int PicoReset(void);
  78                         PicoReset();
  79                         break;
  80                 }
  81         }
  82
  83         return 0;
  84 }
  85
  86 static gint key_release_event (GtkWidget *widget, GdkEventKey *event)
  87 {
  88         switch (event->hardware_keycode)
  89         {
  90                 case 111:
  91                 case 0x62: current_keys &= ~GP2X_UP;    break;
  92                 case 116:
  93                 case 0x68: current_keys &= ~GP2X_DOWN;  break;
  94                 case 113:
  95                 case 0x64: current_keys &= ~GP2X_LEFT;  break;
  96                 case 114:
  97                 case 0x66: current_keys &= ~GP2X_RIGHT; break;
  98                 case 0x24: current_keys &= ~GP2X_START; break; // enter
  99                 case 0x23: current_keys &= ~GP2X_SELECT;break; // ]
 100                 case 0x34: current_keys &= ~GP2X_A;     break; // z
 101                 case 0x35: current_keys &= ~GP2X_X;     break; // x
 102                 case 0x36: current_keys &= ~GP2X_B;     break; // c
 103                 case 0x37: current_keys &= ~GP2X_Y;     break; // v
 104                 case 0x27: current_keys &= ~GP2X_L;     break; // s
 105                 case 0x28: current_keys &= ~GP2X_R;     break; // d
 106                 case 0x29: current_keys &= ~GP2X_PUSH;  break; // f
 107                 case 0x18: current_keys &= ~GP2X_VOL_DOWN;break; // q
 108                 case 0x19: current_keys &= ~GP2X_VOL_UP;break; // w
 109         }
 110
 111         return 0;
 112 }
 113
 114 static void *gtk_threadf(void *targ)
 115 {
 116         int argc = 0;
 117         char *argv[] = { "" };
 118         GtkWidget *box;
 119         sem_t *sem = targ;
 120
 121         g_thread_init (NULL);
 122         gdk_threads_init ();
 123         gdk_set_locale ();
 124         gtk_init (&argc, (char ***) &argv);
 125
 126         /* create new window */
 127         gtk_items.window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
 128         g_signal_connect (G_OBJECT (gtk_items.window), "delete_event",
 129                         G_CALLBACK (delete_event), NULL);
 130
 131         g_signal_connect (G_OBJECT (gtk_items.window), "destroy",
 132                         G_CALLBACK (destroy), NULL);
 133
 134         g_signal_connect (G_OBJECT (gtk_items.window), "key_press_event",
 135                         G_CALLBACK (key_press_event), NULL);
 136
 137         g_signal_connect (G_OBJECT (gtk_items.window), "key_release_event",
 138                         G_CALLBACK (key_release_event), NULL);
 139
 140         gtk_container_set_border_width (GTK_CONTAINER (gtk_items.window), 2);
 141         gtk_window_set_title ((GtkWindow *) gtk_items.window, verstring);
 142
 143         box = gtk_hbox_new(FALSE, 0);
 144         gtk_widget_show(box);
 145         gtk_container_add (GTK_CONTAINER (gtk_items.window), box);
 146
 147         /* live pixmap */
 148         gtk_items.pixmap1 = gtk_image_new ();
 149         gtk_container_add (GTK_CONTAINER (box), gtk_items.pixmap1);
 150         gtk_widget_show (gtk_items.pixmap1);
 151         gtk_widget_set_size_request (gtk_items.pixmap1, 320, 240);
 152
 153         gtk_widget_show  (gtk_items.window);
 154
 155         sem_post(sem);
 156
 157         gtk_main();
 158
 159         printf("linux: gtk thread finishing\n");
 160         exit(1);
 161
 162         return NULL;
 163 }
 164
 165 static void gtk_initf(void)
 166 {
 167         pthread_t gtk_thread;
 168         sem_t sem;
 169         sem_init(&sem, 0, 0);
 170
 171         pthread_create(&gtk_thread, NULL, gtk_threadf, &sem);
 172         pthread_detach(gtk_thread);
 173
 174         sem_wait(&sem);
 175         sem_close(&sem);
 176 }
 177
 178 void finalize_image(guchar *pixels, gpointer data)
 179 {
 180         free(pixels);
 181 }
 182
 183 /* --- */
 184
 185 void gp2x_init(void)
 186 {
 187         printf("entering init()\n"); fflush(stdout);
 188
 189         gp2x_screen = malloc(320*240*2 + 320*2);
 190         memset(gp2x_screen, 0, 320*240*2 + 320*2);
 191
 192         // snd
 193         sndout_oss_init();
 194
 195         gtk_initf();
 196
 197         usbjoy_init();
 198
 199         printf("exitting init()\n"); fflush(stdout);
 200 }
 201
 202 void gp2x_deinit(void)
 203 {
 204         free(gp2x_screen);
 205         sndout_oss_exit();
 206         usbjoy_deinit();
 207 }
 208
 209 /* video */
 210 void gp2x_video_flip(void)
 211 {
 212         GdkPixbuf       *pixbuf;
 213         unsigned char   *image;
 214         int             i;
 215
 216         gdk_threads_enter();
 217
 218         image = malloc (320*240*3);
 219         if (image == NULL)
 220         {
 221                 gdk_threads_leave();
 222                 return;
 223         }
 224
 225         if (current_bpp == 8)
 226         {
 227                 unsigned char *pixels = gp2x_screen;
 228                 int pix;
 229
 230                 for (i = 0; i < 320*240; i++)
 231                 {
 232                         pix = current_pal[pixels[i]];
 233                         image[3 * i + 0] = pix >> 16;
 234                         image[3 * i + 1] = pix >>  8;
 235                         image[3 * i + 2] = pix;
 236                 }
 237         }
 238         else
 239         {
 240                 unsigned short *pixels = gp2x_screen;
 241
 242                 for (i = 0; i < 320*240; i++)
 243                 {
 244                         /*  in:           rrrr rggg gggb bbbb */
 245                         /* out: rrrr r000 gggg gg00 bbbb b000 */
 246                         image[3 * i + 0] = (pixels[i] >> 8) & 0xf8;
 247                         image[3 * i + 1] = (pixels[i] >> 3) & 0xfc;
 248                         image[3 * i + 2] = (pixels[i] << 3);
 249                 }
 250         }
 251
 252         pixbuf = gdk_pixbuf_new_from_data (image, GDK_COLORSPACE_RGB,
 253                         FALSE, 8, 320, 240, 320*3, finalize_image, NULL);
 254         gtk_image_set_from_pixbuf (GTK_IMAGE (gtk_items.pixmap1), pixbuf);
 255         g_object_unref (pixbuf);
 256
 257         gdk_threads_leave();
 258 }
 259
 260 void gp2x_video_flip2(void)
 261 {
 262         gp2x_video_flip();
 263 }
 264
 265 void gp2x_video_changemode(int bpp)
 266 {
 267         current_bpp = bpp;
 268 }
 269
 270 void gp2x_video_changemode2(int bpp)
 271 {
 272         current_bpp = bpp;
 273 }
 274
 275 void gp2x_video_setpalette(int *pal, int len)
 276 {
 277         memcpy(current_pal, pal, len*4);
 278 }
 279
 280 void gp2x_video_flush_cache(void)
 281 {
 282 }
 283
 284 void gp2x_video_RGB_setscaling(int v_offs, int W, int H)
 285 {
 286 }
 287
 288 void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
 289 {
 290         if ((char *)gp2x_screen + offset != data)
 291                 memcpy((char *)gp2x_screen + offset, data, len);
 292 }
 293
 294 void gp2x_memcpy_all_buffers(void *data, int offset, int len)
 295 {
 296         memcpy((char *)gp2x_screen + offset, data, len);
 297 }
 298
 299
 300 void gp2x_memset_all_buffers(int offset, int byte, int len)
 301 {
 302         memset((char *)gp2x_screen + offset, byte, len);
 303 }
 304
 305 void gp2x_pd_clone_buffer2(void)
 306 {
 307         memset(gp2x_screen, 0, 320*240*2);
 308 }
 309
 310 /* joy */
 311 unsigned long gp2x_joystick_read(int allow_usb_joy)
 312 {
 313         unsigned long value = current_keys;
 314         int i;
 315
 316         if (allow_usb_joy && num_of_joys > 0) {
 317                 // check the usb joy as well..
 318                 usbjoy_update();
 319                 for (i = 0; i < num_of_joys; i++)
 320                         value |= usbjoy_check(i);
 321         }
 322
 323         return value;
 324 }
 325
 326 int gp2x_touchpad_read(int *x, int *y)
 327 {
 328         return -1;
 329 }
 330
 331 /* 940 */
 332 int crashed_940 = 0;
 333 void Pause940(int yes)
 334 {
 335 }
 336
 337 void Reset940(int yes, int bank)
 338 {
 339 }
 340
 341 /* faking gp2x cpuctrl.c */
 342 void cpuctrl_init(void)
 343 {
 344 }
 345
 346 void cpuctrl_deinit(void)
 347 {
 348 }
 349
 350 void set_FCLK(unsigned MHZ)
 351 {
 352 }
 353
 354 void Disable_940(void)
 355 {
 356 }
 357
 358 void gp2x_video_wait_vsync(void)
 359 {
 360 }
 361
 362 void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
 363 {
 364 }
 365
 366 void set_gamma(int g100, int A_SNs_curve)
 367 {
 368 }
 369
 370 void set_LCD_custom_rate(int rate)
 371 {
 372 }
 373
 374 void unset_LCD_custom_rate(void)
 375 {
 376 }
 377
 378 /* squidgehack.c */
 379 int mmuhack(void)
 380 {
 381         return 0;
 382 }
 383
 384
 385 int mmuunhack(void)
 386 {
 387         return 0;
 388 }
 389
 390
 391 /* misc */
 392 void spend_cycles(int c)
 393 {
 394         usleep(c/200);
 395 }
 396
 397 /* lprintf */
 398 void lprintf(const char *fmt, ...)
 399 {
 400         va_list vl;
 401
 402         va_start(vl, fmt);
 403         vprintf(fmt, vl);
 404         va_end(vl);
 405 }
 406