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