minor adjustment
[picodrive.git] / platform / linux / gp2x.c
CommitLineData
cc68a136 1/* faking/emulating gp2x.c by using gtk */
2#include <stdio.h>
3#include <stdlib.h>
4#include <string.h>
5#include <pthread.h>
69996cb7 6#include <semaphore.h>
cc68a136 7#include <gtk/gtk.h>
8
9#include <unistd.h>
10#include <sys/types.h>
11#include <sys/stat.h>
12#include <sys/ioctl.h>
13#include <sys/soundcard.h>
14#include <fcntl.h>
15#include <errno.h>
16
17#include "../gp2x/emu.h"
18#include "../gp2x/gp2x.h"
19#include "../gp2x/usbjoy.h"
20#include "../gp2x/version.h"
21
4f65685b 22#include "log_io.h"
23
cc68a136 24void *gp2x_screen;
25static int current_bpp = 8;
26static int current_pal[256];
27static unsigned long current_keys = 0;
28static int sounddev = 0, mixerdev = 0;
29static const char *verstring = "PicoDrive " VERSION;
30
31// dummies
32char *ext_menu = 0, *ext_state = 0;
33
34/* gtk */
35struct gtk_global_struct
36{
37 GtkWidget *window;
38 GtkWidget *pixmap1;
39} gtk_items;
40
41
42static gboolean delete_event (GtkWidget *widget, GdkEvent *event, gpointer data)
43{
44 return FALSE;
45}
46
47static void destroy (GtkWidget *widget, gpointer data)
48{
49 gtk_main_quit ();
50}
51
52static gint key_press_event (GtkWidget *widget, GdkEventKey *event)
53{
54 switch (event->hardware_keycode)
55 {
56 case 0x62: current_keys |= GP2X_UP; break;
57 case 0x68: current_keys |= GP2X_DOWN; break;
58 case 0x64: current_keys |= GP2X_LEFT; break;
59 case 0x66: current_keys |= GP2X_RIGHT; break;
60 case 0x24: current_keys |= GP2X_START; break; // enter
61 case 0x23: current_keys |= GP2X_SELECT;break; // ]
62 case 0x34: current_keys |= GP2X_A; break; // z
63 case 0x35: current_keys |= GP2X_X; break; // x
64 case 0x36: current_keys |= GP2X_B; break; // c
65 case 0x37: current_keys |= GP2X_Y; break; // v
66 case 0x27: current_keys |= GP2X_L; break; // s
67 case 0x28: current_keys |= GP2X_R; break; // d
68 case 0x29: current_keys |= GP2X_PUSH; break; // f
69 case 0x18: current_keys |= GP2X_VOL_DOWN;break; // q
70 case 0x19: current_keys |= GP2X_VOL_UP;break; // w
4f65685b 71 case 0x2d: log_io_clear(); break; // k
72 case 0x2e: log_io_dump(); break; // l
cc68a136 73 }
74
75 return 0;
76}
77
78static gint key_release_event (GtkWidget *widget, GdkEventKey *event)
79{
80 switch (event->hardware_keycode)
81 {
82 case 0x62: current_keys &= ~GP2X_UP; break;
83 case 0x68: current_keys &= ~GP2X_DOWN; break;
84 case 0x64: current_keys &= ~GP2X_LEFT; break;
85 case 0x66: current_keys &= ~GP2X_RIGHT; break;
86 case 0x24: current_keys &= ~GP2X_START; break; // enter
87 case 0x23: current_keys &= ~GP2X_SELECT;break; // ]
88 case 0x34: current_keys &= ~GP2X_A; break; // z
89 case 0x35: current_keys &= ~GP2X_X; break; // x
90 case 0x36: current_keys &= ~GP2X_B; break; // c
91 case 0x37: current_keys &= ~GP2X_Y; break; // v
92 case 0x27: current_keys &= ~GP2X_L; break; // s
93 case 0x28: current_keys &= ~GP2X_R; break; // d
94 case 0x29: current_keys &= ~GP2X_PUSH; break; // f
95 case 0x18: current_keys &= ~GP2X_VOL_DOWN;break; // q
96 case 0x19: current_keys &= ~GP2X_VOL_UP;break; // w
97 }
98
99 return 0;
100}
101
69996cb7 102static void *gtk_threadf(void *targ)
cc68a136 103{
104 int argc = 0;
105 char *argv[] = { "" };
106 GtkWidget *box;
69996cb7 107 sem_t *sem = targ;
cc68a136 108
109 g_thread_init (NULL);
110 gdk_threads_init ();
111 gdk_set_locale ();
112 gtk_init (&argc, (char ***) &argv);
113
114 /* create new window */
115 gtk_items.window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
116 g_signal_connect (G_OBJECT (gtk_items.window), "delete_event",
117 G_CALLBACK (delete_event), NULL);
118
119 g_signal_connect (G_OBJECT (gtk_items.window), "destroy",
120 G_CALLBACK (destroy), NULL);
121
122 g_signal_connect (G_OBJECT (gtk_items.window), "key_press_event",
123 G_CALLBACK (key_press_event), NULL);
124
125 g_signal_connect (G_OBJECT (gtk_items.window), "key_release_event",
126 G_CALLBACK (key_release_event), NULL);
127
128 gtk_container_set_border_width (GTK_CONTAINER (gtk_items.window), 2);
129 gtk_window_set_title ((GtkWindow *) gtk_items.window, verstring);
130
131 box = gtk_hbox_new(FALSE, 0);
132 gtk_widget_show(box);
133 gtk_container_add (GTK_CONTAINER (gtk_items.window), box);
134
135 /* live pixmap */
136 gtk_items.pixmap1 = gtk_image_new ();
137 gtk_container_add (GTK_CONTAINER (box), gtk_items.pixmap1);
138 gtk_widget_show (gtk_items.pixmap1);
139 gtk_widget_set_size_request (gtk_items.pixmap1, 320, 240);
140
141 gtk_widget_show (gtk_items.window);
142
69996cb7 143 sem_post(sem);
144
145 gtk_main();
146
147 printf("linux: gtk thread finishing\n");
148 exit(1);
149
150 return NULL;
151}
152
153static void gtk_initf(void)
154{
155 pthread_t gtk_thread;
156 sem_t sem;
157 sem_init(&sem, 0, 0);
158
159 pthread_create(&gtk_thread, NULL, gtk_threadf, &sem);
160 pthread_detach(gtk_thread);
cc68a136 161
69996cb7 162 sem_wait(&sem);
163 sem_close(&sem);
cc68a136 164}
165
166void finalize_image(guchar *pixels, gpointer data)
167{
168 free(pixels);
169}
170
171/* --- */
172
173void gp2x_init(void)
174{
175 printf("entering init()\n"); fflush(stdout);
176
177 gp2x_screen = malloc(320*240*2 + 320*2);
83bd0b76 178 memset(gp2x_screen, 0, 320*240*2 + 320*2);
cc68a136 179
180 // snd
181 mixerdev = open("/dev/mixer", O_RDWR);
182 if (mixerdev == -1)
183 printf("open(\"/dev/mixer\") failed with %i\n", errno);
184
185 gtk_initf();
186
187 gp2x_usbjoy_init();
188
189 printf("exitting init()\n"); fflush(stdout);
190}
191
192void gp2x_deinit(void)
193{
194 free(gp2x_screen);
195 if (sounddev > 0) close(sounddev);
196 close(mixerdev);
197 gp2x_usbjoy_deinit();
198}
199
200/* video */
201void gp2x_video_flip(void)
202{
203 GdkPixbuf *pixbuf;
204 unsigned char *image;
205 int i;
206
207 gdk_threads_enter();
208
209 image = malloc (320*240*3);
210 if (image == NULL)
211 {
212 gdk_threads_leave();
213 return;
214 }
215
216 if (current_bpp == 8)
217 {
218 unsigned char *pixels = gp2x_screen;
219 int pix;
220
221 for (i = 0; i < 320*240; i++)
222 {
223 pix = current_pal[pixels[i]];
224 image[3 * i + 0] = pix >> 16;
225 image[3 * i + 1] = pix >> 8;
226 image[3 * i + 2] = pix;
227 }
228 }
229 else
230 {
231 unsigned short *pixels = gp2x_screen;
232
233 for (i = 0; i < 320*240; i++)
234 {
235 /* in: rrrr rggg gggb bbbb */
236 /* out: rrrr r000 gggg gg00 bbbb b000 */
237 image[3 * i + 0] = (pixels[i] >> 8) & 0xf8;
238 image[3 * i + 1] = (pixels[i] >> 3) & 0xfc;
239 image[3 * i + 2] = (pixels[i] << 3);
240 }
241 }
242
243 pixbuf = gdk_pixbuf_new_from_data (image, GDK_COLORSPACE_RGB,
244 FALSE, 8, 320, 240, 320*3, finalize_image, NULL);
245 gtk_image_set_from_pixbuf (GTK_IMAGE (gtk_items.pixmap1), pixbuf);
246 g_object_unref (pixbuf);
247
248 gdk_threads_leave();
249}
250
e11c5548 251void gp2x_video_flip2(void)
252{
253 gp2x_video_flip();
254}
255
cc68a136 256void gp2x_video_changemode(int bpp)
257{
258 current_bpp = bpp;
259}
260
e11c5548 261void gp2x_video_changemode2(int bpp)
262{
263 current_bpp = bpp;
264}
265
cc68a136 266void gp2x_video_setpalette(int *pal, int len)
267{
268 memcpy(current_pal, pal, len*4);
269}
270
a12e0116 271void gp2x_video_flush_cache(void)
272{
273}
274
2433f409 275void gp2x_video_RGB_setscaling(int v_offs, int W, int H)
cc68a136 276{
277}
278
68cba51e 279void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
280{
a12e0116 281 if ((char *)gp2x_screen + offset != data)
282 memcpy((char *)gp2x_screen + offset, data, len);
68cba51e 283}
284
cc68a136 285void gp2x_memcpy_all_buffers(void *data, int offset, int len)
286{
287 memcpy((char *)gp2x_screen + offset, data, len);
288}
289
290
291void gp2x_memset_all_buffers(int offset, int byte, int len)
292{
293 memset((char *)gp2x_screen + offset, byte, len);
294}
295
e11c5548 296void gp2x_pd_clone_buffer2(void)
297{
a12e0116 298 memset(gp2x_screen, 0, 320*240*2);
e11c5548 299}
cc68a136 300
301/* sound */
302static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;
303
304void gp2x_start_sound(int rate, int bits, int stereo)
305{
306 int frag = 0, bsize, buffers;
307
308 // if no settings change, we don't need to do anything
309 if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;
310
311 if (sounddev > 0) close(sounddev);
312 sounddev = open("/dev/dsp", O_WRONLY|O_ASYNC);
313 if (sounddev == -1)
314 printf("open(\"/dev/dsp\") failed with %i\n", errno);
315
316 ioctl(sounddev, SNDCTL_DSP_SPEED, &rate);
317 ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);
318 ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);
319 // calculate buffer size
320 buffers = 16;
321 bsize = rate / 32;
322 if (rate > 22050) { bsize*=4; buffers*=2; } // 44k mode seems to be very demanding
323 while ((bsize>>=1)) frag++;
324 frag |= buffers<<16; // 16 buffers
325 ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);
326 printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",
327 rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));
328
329 s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;
330}
331
332void gp2x_sound_write(void *buff, int len)
333{
334 write(sounddev, buff, len);
335}
336
cb0316e4 337void gp2x_sound_sync(void)
338{
339 ioctl(sounddev, SOUND_PCM_SYNC, 0);
340}
341
cc68a136 342void gp2x_sound_volume(int l, int r)
343{
344 l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;
345 l<<=8; l|=r;
346 ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /*SOUND_MIXER_WRITE_VOLUME*/
347}
348
349/* joy */
350unsigned long gp2x_joystick_read(int allow_usb_joy)
351{
352 unsigned long value = current_keys;
353 int i;
354
355 if (allow_usb_joy && num_of_joys > 0) {
356 // check the usb joy as well..
357 gp2x_usbjoy_update();
358 for (i = 0; i < num_of_joys; i++)
359 value |= gp2x_usbjoy_check(i);
360 }
361
362 return value;
363}
364
365/* 940 */
366int crashed_940 = 0;
367void Pause940(int yes)
368{
369}
370
b837b69b 371void Reset940(int yes, int bank)
cc68a136 372{
373}
374
375/* faking gp2x cpuctrl.c */
376void cpuctrl_init(void)
377{
378}
379
380void cpuctrl_deinit(void)
381{
382}
383
384void set_FCLK(unsigned MHZ)
385{
386}
387
388void Disable_940(void)
389{
390}
391
392void gp2x_video_wait_vsync(void)
393{
394}
395
396void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
397{
398}
399
82bc9cdd 400void set_gamma(int g100, int A_SNs_curve)
cc68a136 401{
402}
403
4e8a534c 404void set_LCD_custom_rate(int rate)
405{
406}
407
408void unset_LCD_custom_rate(void)
409{
410}
cc68a136 411
412/* squidgehack.c */
413int mmuhack(void)
414{
415 return 0;
416}
417
418
419int mmuunhack(void)
420{
421 return 0;
422}
423
424
425/* misc */
426void spend_cycles(int c)
427{
46969540 428 usleep(c/200);
cc68a136 429}
430
ca61ee42 431/* lprintf */
432void lprintf(const char *fmt, ...)
433{
434 va_list vl;
cc68a136 435
ca61ee42 436 va_start(vl, fmt);
437 vprintf(fmt, vl);
438 va_end(vl);
439}
cc68a136 440