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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 <gtk/gtk.h> |
7 | |
8 | #include <unistd.h> |
9 | #include <sys/types.h> |
10 | #include <sys/stat.h> |
11 | #include <sys/ioctl.h> |
12 | #include <sys/soundcard.h> |
13 | #include <fcntl.h> |
14 | #include <errno.h> |
15 | |
16 | #include "../gp2x/emu.h" |
17 | #include "../gp2x/gp2x.h" |
18 | #include "../gp2x/usbjoy.h" |
19 | #include "../gp2x/version.h" |
20 | |
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21 | #include "log_io.h" |
22 | |
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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 int sounddev = 0, mixerdev = 0; |
28 | static const char *verstring = "PicoDrive " VERSION; |
29 | |
30 | // dummies |
31 | char *ext_menu = 0, *ext_state = 0; |
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 |
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70 | case 0x2d: log_io_clear(); break; // k |
71 | case 0x2e: log_io_dump(); break; // l |
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72 | } |
73 | |
74 | return 0; |
75 | } |
76 | |
77 | static gint key_release_event (GtkWidget *widget, GdkEventKey *event) |
78 | { |
79 | switch (event->hardware_keycode) |
80 | { |
81 | case 0x62: current_keys &= ~GP2X_UP; break; |
82 | case 0x68: current_keys &= ~GP2X_DOWN; break; |
83 | case 0x64: current_keys &= ~GP2X_LEFT; break; |
84 | case 0x66: current_keys &= ~GP2X_RIGHT; break; |
85 | case 0x24: current_keys &= ~GP2X_START; break; // enter |
86 | case 0x23: current_keys &= ~GP2X_SELECT;break; // ] |
87 | case 0x34: current_keys &= ~GP2X_A; break; // z |
88 | case 0x35: current_keys &= ~GP2X_X; break; // x |
89 | case 0x36: current_keys &= ~GP2X_B; break; // c |
90 | case 0x37: current_keys &= ~GP2X_Y; break; // v |
91 | case 0x27: current_keys &= ~GP2X_L; break; // s |
92 | case 0x28: current_keys &= ~GP2X_R; break; // d |
93 | case 0x29: current_keys &= ~GP2X_PUSH; break; // f |
94 | case 0x18: current_keys &= ~GP2X_VOL_DOWN;break; // q |
95 | case 0x19: current_keys &= ~GP2X_VOL_UP;break; // w |
96 | } |
97 | |
98 | return 0; |
99 | } |
100 | |
101 | static void *gtk_threadf(void *none) |
102 | { |
103 | gtk_main(); |
104 | |
105 | printf("linux: gtk thread finishing\n"); |
106 | engineState = PGS_Quit; |
107 | |
108 | return NULL; |
109 | } |
110 | |
111 | static void gtk_initf(void) |
112 | { |
113 | int argc = 0; |
114 | char *argv[] = { "" }; |
115 | GtkWidget *box; |
116 | pthread_t gtk_thread; |
117 | |
118 | g_thread_init (NULL); |
119 | gdk_threads_init (); |
120 | gdk_set_locale (); |
121 | gtk_init (&argc, (char ***) &argv); |
122 | |
123 | /* create new window */ |
124 | gtk_items.window = gtk_window_new (GTK_WINDOW_TOPLEVEL); |
125 | g_signal_connect (G_OBJECT (gtk_items.window), "delete_event", |
126 | G_CALLBACK (delete_event), NULL); |
127 | |
128 | g_signal_connect (G_OBJECT (gtk_items.window), "destroy", |
129 | G_CALLBACK (destroy), NULL); |
130 | |
131 | g_signal_connect (G_OBJECT (gtk_items.window), "key_press_event", |
132 | G_CALLBACK (key_press_event), NULL); |
133 | |
134 | g_signal_connect (G_OBJECT (gtk_items.window), "key_release_event", |
135 | G_CALLBACK (key_release_event), NULL); |
136 | |
137 | gtk_container_set_border_width (GTK_CONTAINER (gtk_items.window), 2); |
138 | gtk_window_set_title ((GtkWindow *) gtk_items.window, verstring); |
139 | |
140 | box = gtk_hbox_new(FALSE, 0); |
141 | gtk_widget_show(box); |
142 | gtk_container_add (GTK_CONTAINER (gtk_items.window), box); |
143 | |
144 | /* live pixmap */ |
145 | gtk_items.pixmap1 = gtk_image_new (); |
146 | gtk_container_add (GTK_CONTAINER (box), gtk_items.pixmap1); |
147 | gtk_widget_show (gtk_items.pixmap1); |
148 | gtk_widget_set_size_request (gtk_items.pixmap1, 320, 240); |
149 | |
150 | gtk_widget_show (gtk_items.window); |
151 | |
152 | // pthread_mutex_init (&thr_mutex, NULL); |
153 | // pthread_mutex_lock (&thr_mutex); |
154 | // pthread_mutex_init (&scanner_muttex, NULL); |
155 | |
156 | pthread_create(>k_thread, NULL, gtk_threadf, NULL); |
157 | } |
158 | |
159 | void finalize_image(guchar *pixels, gpointer data) |
160 | { |
161 | free(pixels); |
162 | } |
163 | |
164 | /* --- */ |
165 | |
166 | void gp2x_init(void) |
167 | { |
168 | printf("entering init()\n"); fflush(stdout); |
169 | |
170 | gp2x_screen = malloc(320*240*2 + 320*2); |
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171 | memset(gp2x_screen, 0, 320*240*2 + 320*2); |
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172 | |
173 | // snd |
174 | mixerdev = open("/dev/mixer", O_RDWR); |
175 | if (mixerdev == -1) |
176 | printf("open(\"/dev/mixer\") failed with %i\n", errno); |
177 | |
178 | gtk_initf(); |
179 | |
180 | gp2x_usbjoy_init(); |
181 | |
182 | printf("exitting init()\n"); fflush(stdout); |
183 | } |
184 | |
185 | void gp2x_deinit(void) |
186 | { |
187 | free(gp2x_screen); |
188 | if (sounddev > 0) close(sounddev); |
189 | close(mixerdev); |
190 | gp2x_usbjoy_deinit(); |
191 | } |
192 | |
193 | /* video */ |
194 | void gp2x_video_flip(void) |
195 | { |
196 | GdkPixbuf *pixbuf; |
197 | unsigned char *image; |
198 | int i; |
199 | |
200 | gdk_threads_enter(); |
201 | |
202 | image = malloc (320*240*3); |
203 | if (image == NULL) |
204 | { |
205 | gdk_threads_leave(); |
206 | return; |
207 | } |
208 | |
209 | if (current_bpp == 8) |
210 | { |
211 | unsigned char *pixels = gp2x_screen; |
212 | int pix; |
213 | |
214 | for (i = 0; i < 320*240; i++) |
215 | { |
216 | pix = current_pal[pixels[i]]; |
217 | image[3 * i + 0] = pix >> 16; |
218 | image[3 * i + 1] = pix >> 8; |
219 | image[3 * i + 2] = pix; |
220 | } |
221 | } |
222 | else |
223 | { |
224 | unsigned short *pixels = gp2x_screen; |
225 | |
226 | for (i = 0; i < 320*240; i++) |
227 | { |
228 | /* in: rrrr rggg gggb bbbb */ |
229 | /* out: rrrr r000 gggg gg00 bbbb b000 */ |
230 | image[3 * i + 0] = (pixels[i] >> 8) & 0xf8; |
231 | image[3 * i + 1] = (pixels[i] >> 3) & 0xfc; |
232 | image[3 * i + 2] = (pixels[i] << 3); |
233 | } |
234 | } |
235 | |
236 | pixbuf = gdk_pixbuf_new_from_data (image, GDK_COLORSPACE_RGB, |
237 | FALSE, 8, 320, 240, 320*3, finalize_image, NULL); |
238 | gtk_image_set_from_pixbuf (GTK_IMAGE (gtk_items.pixmap1), pixbuf); |
239 | g_object_unref (pixbuf); |
240 | |
241 | gdk_threads_leave(); |
242 | } |
243 | |
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244 | void gp2x_video_flip2(void) |
245 | { |
246 | gp2x_video_flip(); |
247 | } |
248 | |
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249 | void gp2x_video_changemode(int bpp) |
250 | { |
251 | current_bpp = bpp; |
252 | } |
253 | |
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254 | void gp2x_video_changemode2(int bpp) |
255 | { |
256 | current_bpp = bpp; |
257 | } |
258 | |
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259 | void gp2x_video_setpalette(int *pal, int len) |
260 | { |
261 | memcpy(current_pal, pal, len*4); |
262 | } |
263 | |
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264 | void gp2x_video_flush_cache(void) |
265 | { |
266 | } |
267 | |
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268 | void gp2x_video_RGB_setscaling(int v_offs, int W, int H) |
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269 | { |
270 | } |
271 | |
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272 | void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len) |
273 | { |
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274 | if ((char *)gp2x_screen + offset != data) |
275 | memcpy((char *)gp2x_screen + offset, data, len); |
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276 | } |
277 | |
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278 | void gp2x_memcpy_all_buffers(void *data, int offset, int len) |
279 | { |
280 | memcpy((char *)gp2x_screen + offset, data, len); |
281 | } |
282 | |
283 | |
284 | void gp2x_memset_all_buffers(int offset, int byte, int len) |
285 | { |
286 | memset((char *)gp2x_screen + offset, byte, len); |
287 | } |
288 | |
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289 | void gp2x_pd_clone_buffer2(void) |
290 | { |
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291 | memset(gp2x_screen, 0, 320*240*2); |
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292 | } |
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293 | |
294 | /* sound */ |
295 | static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0; |
296 | |
297 | void gp2x_start_sound(int rate, int bits, int stereo) |
298 | { |
299 | int frag = 0, bsize, buffers; |
300 | |
301 | // if no settings change, we don't need to do anything |
302 | if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return; |
303 | |
304 | if (sounddev > 0) close(sounddev); |
305 | sounddev = open("/dev/dsp", O_WRONLY|O_ASYNC); |
306 | if (sounddev == -1) |
307 | printf("open(\"/dev/dsp\") failed with %i\n", errno); |
308 | |
309 | ioctl(sounddev, SNDCTL_DSP_SPEED, &rate); |
310 | ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits); |
311 | ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo); |
312 | // calculate buffer size |
313 | buffers = 16; |
314 | bsize = rate / 32; |
315 | if (rate > 22050) { bsize*=4; buffers*=2; } // 44k mode seems to be very demanding |
316 | while ((bsize>>=1)) frag++; |
317 | frag |= buffers<<16; // 16 buffers |
318 | ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag); |
319 | printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n", |
320 | rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff)); |
321 | |
322 | s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo; |
323 | } |
324 | |
325 | void gp2x_sound_write(void *buff, int len) |
326 | { |
327 | write(sounddev, buff, len); |
328 | } |
329 | |
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330 | void gp2x_sound_sync(void) |
331 | { |
332 | ioctl(sounddev, SOUND_PCM_SYNC, 0); |
333 | } |
334 | |
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335 | void gp2x_sound_volume(int l, int r) |
336 | { |
337 | l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r; |
338 | l<<=8; l|=r; |
339 | ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /*SOUND_MIXER_WRITE_VOLUME*/ |
340 | } |
341 | |
342 | /* joy */ |
343 | unsigned long gp2x_joystick_read(int allow_usb_joy) |
344 | { |
345 | unsigned long value = current_keys; |
346 | int i; |
347 | |
348 | if (allow_usb_joy && num_of_joys > 0) { |
349 | // check the usb joy as well.. |
350 | gp2x_usbjoy_update(); |
351 | for (i = 0; i < num_of_joys; i++) |
352 | value |= gp2x_usbjoy_check(i); |
353 | } |
354 | |
355 | return value; |
356 | } |
357 | |
358 | /* 940 */ |
359 | int crashed_940 = 0; |
360 | void Pause940(int yes) |
361 | { |
362 | } |
363 | |
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364 | void Reset940(int yes, int bank) |
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365 | { |
366 | } |
367 | |
368 | /* faking gp2x cpuctrl.c */ |
369 | void cpuctrl_init(void) |
370 | { |
371 | } |
372 | |
373 | void cpuctrl_deinit(void) |
374 | { |
375 | } |
376 | |
377 | void set_FCLK(unsigned MHZ) |
378 | { |
379 | } |
380 | |
381 | void Disable_940(void) |
382 | { |
383 | } |
384 | |
385 | void gp2x_video_wait_vsync(void) |
386 | { |
387 | } |
388 | |
389 | void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD) |
390 | { |
391 | } |
392 | |
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393 | void set_gamma(int g100, int A_SNs_curve) |
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394 | { |
395 | } |
396 | |
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397 | void set_LCD_custom_rate(int rate) |
398 | { |
399 | } |
400 | |
401 | void unset_LCD_custom_rate(void) |
402 | { |
403 | } |
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404 | |
405 | /* squidgehack.c */ |
406 | int mmuhack(void) |
407 | { |
408 | return 0; |
409 | } |
410 | |
411 | |
412 | int mmuunhack(void) |
413 | { |
414 | return 0; |
415 | } |
416 | |
417 | |
418 | /* misc */ |
419 | void spend_cycles(int c) |
420 | { |
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421 | usleep(c/200); |
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422 | } |
423 | |
424 | |
425 | |