[picodrive.git] / platform / linux / gp2x.c

/* faking/emulating gp2x.c by using gtk */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pthread.h>
#include <semaphore.h>
#include <gtk/gtk.h>

#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/soundcard.h>
#include <fcntl.h>
#include <errno.h>

#include "../gp2x/emu.h"
#include "../gp2x/gp2x.h"
#include "../gp2x/usbjoy.h"
#include "../gp2x/version.h"

#include "log_io.h"

void *gp2x_screen;
static int current_bpp = 8;
static int current_pal[256];
static unsigned long current_keys = 0;
static int sounddev = 0, mixerdev = 0;
static const char *verstring = "PicoDrive " VERSION;

// dummies
char *ext_menu = 0, *ext_state = 0;

/* gtk */
struct gtk_global_struct
{
        GtkWidget *window;
        GtkWidget *pixmap1;
} gtk_items;


static gboolean delete_event (GtkWidget *widget, GdkEvent *event, gpointer data)
{
	return FALSE;
}

static void destroy (GtkWidget *widget, gpointer data)
{
	gtk_main_quit ();
}

static gint key_press_event (GtkWidget *widget, GdkEventKey *event)
{
	switch (event->hardware_keycode)
	{
		case 0x62: current_keys |= GP2X_UP;    break;
		case 0x68: current_keys |= GP2X_DOWN;  break;
		case 0x64: current_keys |= GP2X_LEFT;  break;
		case 0x66: current_keys |= GP2X_RIGHT; break;
		case 0x24: current_keys |= GP2X_START; break; // enter
		case 0x23: current_keys |= GP2X_SELECT;break; // ]
		case 0x34: current_keys |= GP2X_A;     break; // z
		case 0x35: current_keys |= GP2X_X;     break; // x
		case 0x36: current_keys |= GP2X_B;     break; // c
		case 0x37: current_keys |= GP2X_Y;     break; // v
		case 0x27: current_keys |= GP2X_L;     break; // s
		case 0x28: current_keys |= GP2X_R;     break; // d
		case 0x29: current_keys |= GP2X_PUSH;  break; // f
		case 0x18: current_keys |= GP2X_VOL_DOWN;break; // q
		case 0x19: current_keys |= GP2X_VOL_UP;break; // w
		case 0x2d: log_io_clear(); break; // k
		case 0x2e: log_io_dump();  break; // l
	}

	return 0;
}

static gint key_release_event (GtkWidget *widget, GdkEventKey *event)
{
	switch (event->hardware_keycode)
	{
		case 0x62: current_keys &= ~GP2X_UP;    break;
		case 0x68: current_keys &= ~GP2X_DOWN;  break;
		case 0x64: current_keys &= ~GP2X_LEFT;  break;
		case 0x66: current_keys &= ~GP2X_RIGHT; break;
		case 0x24: current_keys &= ~GP2X_START; break; // enter
		case 0x23: current_keys &= ~GP2X_SELECT;break; // ]
		case 0x34: current_keys &= ~GP2X_A;     break; // z
		case 0x35: current_keys &= ~GP2X_X;     break; // x
		case 0x36: current_keys &= ~GP2X_B;     break; // c
		case 0x37: current_keys &= ~GP2X_Y;     break; // v
		case 0x27: current_keys &= ~GP2X_L;     break; // s
		case 0x28: current_keys &= ~GP2X_R;     break; // d
		case 0x29: current_keys &= ~GP2X_PUSH;  break; // f
		case 0x18: current_keys &= ~GP2X_VOL_DOWN;break; // q
		case 0x19: current_keys &= ~GP2X_VOL_UP;break; // w
	}

	return 0;
}

static void *gtk_threadf(void *targ)
{
	int argc = 0;
	char *argv[] = { "" };
	GtkWidget *box;
	sem_t *sem = targ;

	g_thread_init (NULL);
	gdk_threads_init ();
	gdk_set_locale ();
	gtk_init (&argc, (char ***) &argv);

	/* create new window */
	gtk_items.window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
	g_signal_connect (G_OBJECT (gtk_items.window), "delete_event",
			G_CALLBACK (delete_event), NULL);

	g_signal_connect (G_OBJECT (gtk_items.window), "destroy",
			G_CALLBACK (destroy), NULL);

	g_signal_connect (G_OBJECT (gtk_items.window), "key_press_event",
			G_CALLBACK (key_press_event), NULL);

	g_signal_connect (G_OBJECT (gtk_items.window), "key_release_event",
			G_CALLBACK (key_release_event), NULL);

	gtk_container_set_border_width (GTK_CONTAINER (gtk_items.window), 2);
	gtk_window_set_title ((GtkWindow *) gtk_items.window, verstring);

	box = gtk_hbox_new(FALSE, 0);
	gtk_widget_show(box);
	gtk_container_add (GTK_CONTAINER (gtk_items.window), box);

	/* live pixmap */
	gtk_items.pixmap1 = gtk_image_new ();
	gtk_container_add (GTK_CONTAINER (box), gtk_items.pixmap1);
	gtk_widget_show (gtk_items.pixmap1);
	gtk_widget_set_size_request (gtk_items.pixmap1, 320, 240);

	gtk_widget_show  (gtk_items.window);

	sem_post(sem);

	gtk_main();

	printf("linux: gtk thread finishing\n");
	exit(1);

	return NULL;
}

static void gtk_initf(void)
{
	pthread_t gtk_thread;
	sem_t sem;
	sem_init(&sem, 0, 0);

	pthread_create(&gtk_thread, NULL, gtk_threadf, &sem);
	pthread_detach(gtk_thread);

	sem_wait(&sem);
	sem_close(&sem);
}

void finalize_image(guchar *pixels, gpointer data)
{
	free(pixels);
}

/* --- */

void gp2x_init(void)
{
	printf("entering init()\n"); fflush(stdout);

	gp2x_screen = malloc(320*240*2 + 320*2);
	memset(gp2x_screen, 0, 320*240*2 + 320*2);

	// snd
  	mixerdev = open("/dev/mixer", O_RDWR);
	if (mixerdev == -1)
		printf("open(\"/dev/mixer\") failed with %i\n", errno);

	gtk_initf();

	gp2x_usbjoy_init();

	printf("exitting init()\n"); fflush(stdout);
}

void gp2x_deinit(void)
{
	free(gp2x_screen);
	if (sounddev > 0) close(sounddev);
	close(mixerdev);
	gp2x_usbjoy_deinit();
}

/* video */
void gp2x_video_flip(void)
{
	GdkPixbuf	*pixbuf;
	unsigned char	*image;
	int		i;

	gdk_threads_enter();

	image = malloc (320*240*3);
	if (image == NULL)
	{
		gdk_threads_leave();
		return;
	}

	if (current_bpp == 8)
	{
		unsigned char *pixels = gp2x_screen;
		int pix;

		for (i = 0; i < 320*240; i++)
		{
			pix = current_pal[pixels[i]];
			image[3 * i + 0] = pix >> 16;
			image[3 * i + 1] = pix >>  8;
			image[3 * i + 2] = pix;
		}
	}
	else
	{
		unsigned short *pixels = gp2x_screen;

		for (i = 0; i < 320*240; i++)
		{
			/*  in:           rrrr rggg gggb bbbb */
			/* out: rrrr r000 gggg gg00 bbbb b000 */
			image[3 * i + 0] = (pixels[i] >> 8) & 0xf8;
			image[3 * i + 1] = (pixels[i] >> 3) & 0xfc;
			image[3 * i + 2] = (pixels[i] << 3);
		}
	}

	pixbuf = gdk_pixbuf_new_from_data (image, GDK_COLORSPACE_RGB,
			FALSE, 8, 320, 240, 320*3, finalize_image, NULL);
	gtk_image_set_from_pixbuf (GTK_IMAGE (gtk_items.pixmap1), pixbuf);
	g_object_unref (pixbuf);

	gdk_threads_leave();
}

void gp2x_video_flip2(void)
{
	gp2x_video_flip();
}

void gp2x_video_changemode(int bpp)
{
	current_bpp = bpp;
}

void gp2x_video_changemode2(int bpp)
{
	current_bpp = bpp;
}

void gp2x_video_setpalette(int *pal, int len)
{
	memcpy(current_pal, pal, len*4);
}

void gp2x_video_flush_cache(void)
{
}

void gp2x_video_RGB_setscaling(int v_offs, int W, int H)
{
}

void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
{
	if ((char *)gp2x_screen + offset != data)
		memcpy((char *)gp2x_screen + offset, data, len);
}

void gp2x_memcpy_all_buffers(void *data, int offset, int len)
{
	memcpy((char *)gp2x_screen + offset, data, len);
}


void gp2x_memset_all_buffers(int offset, int byte, int len)
{
	memset((char *)gp2x_screen + offset, byte, len);
}

void gp2x_pd_clone_buffer2(void)
{
	memset(gp2x_screen, 0, 320*240*2);
}

/* sound */
static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;

void gp2x_start_sound(int rate, int bits, int stereo)
{
	int frag = 0, bsize, buffers;

	// if no settings change, we don't need to do anything
	if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;

	if (sounddev > 0) close(sounddev);
	sounddev = open("/dev/dsp", O_WRONLY|O_ASYNC);
	if (sounddev == -1)
		printf("open(\"/dev/dsp\") failed with %i\n", errno);

	ioctl(sounddev, SNDCTL_DSP_SPEED,  &rate);
	ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);
	ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);
	// calculate buffer size
	buffers = 16;
	bsize = rate / 32;
	if (rate > 22050) { bsize*=4; buffers*=2; } // 44k mode seems to be very demanding
	while ((bsize>>=1)) frag++;
	frag |= buffers<<16; // 16 buffers
	ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);
	printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",
		rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));

	s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;
}

void gp2x_sound_write(void *buff, int len)
{
	write(sounddev, buff, len);
}

void gp2x_sound_sync(void)
{
	ioctl(sounddev, SOUND_PCM_SYNC, 0);
}

void gp2x_sound_volume(int l, int r)
{
 	l=l<0?0:l; l=l>255?255:l; r=r<0?0:r; r=r>255?255:r;
 	l<<=8; l|=r;
 	ioctl(mixerdev, SOUND_MIXER_WRITE_PCM, &l); /*SOUND_MIXER_WRITE_VOLUME*/
}

/* joy */
unsigned long gp2x_joystick_read(int allow_usb_joy)
{
	unsigned long value = current_keys;
	int i;

	if (allow_usb_joy && num_of_joys > 0) {
		// check the usb joy as well..
		gp2x_usbjoy_update();
		for (i = 0; i < num_of_joys; i++)
			value |= gp2x_usbjoy_check(i);
	}

	return value;
}

/* 940 */
int crashed_940 = 0;
void Pause940(int yes)
{
}

void Reset940(int yes, int bank)
{
}

/* faking gp2x cpuctrl.c */
void cpuctrl_init(void)
{
}

void cpuctrl_deinit(void)
{
}

void set_FCLK(unsigned MHZ)
{
}

void Disable_940(void)
{
}

void gp2x_video_wait_vsync(void)
{
}

void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
{
}

void set_gamma(int g100, int A_SNs_curve)
{
}

void set_LCD_custom_rate(int rate)
{
}

void unset_LCD_custom_rate(void)
{
}

/* squidgehack.c */
int mmuhack(void)
{
	return 0;
}


int mmuunhack(void)
{
	return 0;
}


/* misc */
void spend_cycles(int c)
{
	usleep(c/200);
}

/* lprintf */
void lprintf(const char *fmt, ...)
{
	va_list vl;

	va_start(vl, fmt);
	vprintf(fmt, vl);
	va_end(vl);
}
Commit	Line	Data
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"
4f65685b	23
cc68a136	24	void *gp2x_screen;
	25	static int current_bpp = 8;
	26	static int current_pal[256];
	27	static unsigned long current_keys = 0;
	28	static int sounddev = 0, mixerdev = 0;
	29	static const char *verstring = "PicoDrive " VERSION;
	30
	31	// dummies
	32	char ext_menu = 0, ext_state = 0;
	33
	34	/* gtk */
	35	struct gtk_global_struct
	36	{
	37	GtkWidget *window;
	38	GtkWidget *pixmap1;
	39	} gtk_items;
	40
	41
	42	static gboolean delete_event (GtkWidget widget, GdkEvent event, gpointer data)
	43	{
	44	return FALSE;
	45	}
	46
	47	static void destroy (GtkWidget *widget, gpointer data)
	48	{
	49	gtk_main_quit ();
	50	}
	51
	52	static 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
4f65685b	72	case 0x2e: log_io_dump(); break; // l
cc68a136	73	}
	74
	75	return 0;
	76	}
	77
	78	static 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	102	static 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
	153	static 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);
69996cb7	163	sem_close(&sem);
cc68a136	164	}
	165
	166	void finalize_image(guchar *pixels, gpointer data)
	167	{
	168	free(pixels);
	169	}
	170
	171	/* --- */
	172
	173	void gp2x_init(void)
	174	{
	175	printf("entering init()\n"); fflush(stdout);
	176
	177	gp2x_screen = malloc(3202402 + 320*2);
83bd0b76	178	memset(gp2x_screen, 0, 3202402 + 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
	192	void 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 */
	201	void gp2x_video_flip(void)
	202	{
	203	GdkPixbuf *pixbuf;
	204	unsigned char *image;
	205	int i;
	206
	207	gdk_threads_enter();
	208
	209	image = malloc (3202403);
	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	251	void gp2x_video_flip2(void)
	252	{
	253	gp2x_video_flip();
	254	}
	255
cc68a136	256	void gp2x_video_changemode(int bpp)
	257	{
	258	current_bpp = bpp;
	259	}
	260
e11c5548	261	void gp2x_video_changemode2(int bpp)
	262	{
	263	current_bpp = bpp;
	264	}
	265
cc68a136	266	void gp2x_video_setpalette(int *pal, int len)
	267	{
	268	memcpy(current_pal, pal, len*4);
	269	}
	270
a12e0116	271	void gp2x_video_flush_cache(void)
	272	{
	273	}
	274
2433f409	275	void gp2x_video_RGB_setscaling(int v_offs, int W, int H)
cc68a136	276	{
	277	}
	278
68cba51e	279	void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
68cba51e	280	{
a12e0116	281	if ((char *)gp2x_screen + offset != data)
a12e0116	282	memcpy((char *)gp2x_screen + offset, data, len);
68cba51e	283	}
68cba51e	284
cc68a136	285	void gp2x_memcpy_all_buffers(void *data, int offset, int len)
	286	{
	287	memcpy((char *)gp2x_screen + offset, data, len);
	288	}
	289
	290
	291	void gp2x_memset_all_buffers(int offset, int byte, int len)
	292	{
	293	memset((char *)gp2x_screen + offset, byte, len);
	294	}
	295
e11c5548	296	void gp2x_pd_clone_buffer2(void)
e11c5548	297	{
a12e0116	298	memset(gp2x_screen, 0, 3202402);
e11c5548	299	}
cc68a136	300
	301	/* sound */
	302	static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;
	303
	304	void 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
	332	void gp2x_sound_write(void *buff, int len)
	333	{
	334	write(sounddev, buff, len);
	335	}
	336
cb0316e4	337	void gp2x_sound_sync(void)
	338	{
	339	ioctl(sounddev, SOUND_PCM_SYNC, 0);
	340	}
	341
cc68a136	342	void 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 */
	350	unsigned 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 */
	366	int crashed_940 = 0;
	367	void Pause940(int yes)
	368	{
	369	}
	370
b837b69b	371	void Reset940(int yes, int bank)
cc68a136	372	{
	373	}
	374
	375	/* faking gp2x cpuctrl.c */
	376	void cpuctrl_init(void)
	377	{
	378	}
	379
	380	void cpuctrl_deinit(void)
	381	{
	382	}
	383
	384	void set_FCLK(unsigned MHZ)
	385	{
	386	}
	387
	388	void Disable_940(void)
	389	{
	390	}
	391
	392	void gp2x_video_wait_vsync(void)
	393	{
	394	}
	395
	396	void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
	397	{
	398	}
	399
82bc9cdd	400	void set_gamma(int g100, int A_SNs_curve)
cc68a136	401	{
	402	}
	403
4e8a534c	404	void set_LCD_custom_rate(int rate)
	405	{
	406	}
	407
	408	void unset_LCD_custom_rate(void)
	409	{
	410	}
cc68a136	411
	412	/* squidgehack.c */
	413	int mmuhack(void)
	414	{
	415	return 0;
	416	}
	417
	418
	419	int mmuunhack(void)
	420	{
	421	return 0;
	422	}
	423
	424
	425	/* misc */
	426	void spend_cycles(int c)
	427	{
46969540	428	usleep(c/200);
cc68a136	429	}
cc68a136	430
ca61ee42	431	/* lprintf */
	432	void 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