[pcsx_rearmed.git] / frontend / libretro.c

/*
 * (C) notaz, 2012
 *
 * This work is licensed under the terms of the GNU GPLv2 or later.
 * See the COPYING file in the top-level directory.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "../libpcsxcore/misc.h"
#include "../libpcsxcore/psxcounters.h"
#include "../libpcsxcore/psxmem_map.h"
#include "../libpcsxcore/new_dynarec/new_dynarec.h"
#include "../plugins/dfsound/out.h"
#include "../plugins/gpulib/cspace.h"
#include "main.h"
#include "plugin.h"
#include "plugin_lib.h"
#include "revision.h"
#include "libretro.h"

static retro_video_refresh_t video_cb;
static retro_input_poll_t input_poll_cb;
static retro_input_state_t input_state_cb;
static retro_environment_t environ_cb;
static retro_audio_sample_batch_t audio_batch_cb;

static void *vout_buf;
static int samples_sent, samples_to_send;
static int plugins_opened;

/* memory card data */
extern char Mcd1Data[MCD_SIZE];
extern char McdDisable[2];

/* PCSX ReARMed core calls and stuff */
int in_type1, in_type2;
int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 };
int in_keystate;
int in_enable_vibration;

static void init_memcard(char *mcd_data)
{
	unsigned off = 0;
	unsigned i;

	memset(mcd_data, 0, MCD_SIZE);

	mcd_data[off++] = 'M';
	mcd_data[off++] = 'C';
	off += 0x7d;
	mcd_data[off++] = 0x0e;

	for (i = 0; i < 15; i++) {
		mcd_data[off++] = 0xa0;
		off += 0x07;
		mcd_data[off++] = 0xff;
		mcd_data[off++] = 0xff;
		off += 0x75;
		mcd_data[off++] = 0xa0;
	}

	for (i = 0; i < 20; i++) {
		mcd_data[off++] = 0xff;
		mcd_data[off++] = 0xff;
		mcd_data[off++] = 0xff;
		mcd_data[off++] = 0xff;
		off += 0x04;
		mcd_data[off++] = 0xff;
		mcd_data[off++] = 0xff;
		off += 0x76;
	}
}

static int vout_open(void)
{
	return 0;
}

static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
{
}

#ifdef FRONTEND_SUPPORTS_RGB565
static void convert(void *buf, size_t bytes)
{
	unsigned int i, v, *p = buf;

	for (i = 0; i < bytes / 4; i++) {
		v = p[i];
		p[i] = (v & 0x001f001f) | ((v >> 1) & 0x7fe07fe0);
	}
}
#endif

static unsigned game_width;
static unsigned game_height;

static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
{
	unsigned short *dest = vout_buf;
	const unsigned short *src = vram;
	int dstride = w, h1 = h;

	if (vram == NULL) {
		// blanking
		memset(vout_buf, 0, dstride * h * 2);
		goto out;
	}

	if (bgr24)
	{
		// XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
		for (; h1-- > 0; dest += dstride, src += stride)
		{
			bgr888_to_rgb565(dest, src, w * 3);
		}
	}
	else
	{
		for (; h1-- > 0; dest += dstride, src += stride)
		{
			bgr555_to_rgb565(dest, src, w * 2);
		}
	}

out:
#ifndef FRONTEND_SUPPORTS_RGB565
   convert(vout_buf, w * h * 2);
#endif
   game_width = w;
   game_height = h;
	pl_rearmed_cbs.flip_cnt++;
}

static void vout_close(void)
{
}

static void *pl_mmap(unsigned int size)
{
	return psxMap(0, size, 0, MAP_TAG_VRAM);
}

static void pl_munmap(void *ptr, unsigned int size)
{
	psxUnmap(ptr, size, MAP_TAG_VRAM);
}

struct rearmed_cbs pl_rearmed_cbs = {
	.pl_vout_open = vout_open,
	.pl_vout_set_mode = vout_set_mode,
	.pl_vout_flip = vout_flip,
	.pl_vout_close = vout_close,
	.mmap = pl_mmap,
	.munmap = pl_munmap,
	/* from psxcounters */
	.gpu_hcnt = &hSyncCount,
	.gpu_frame_count = &frame_counter,
};

void pl_frame_limit(void)
{
	/* called once per frame, make psxCpu->Execute() above return */
	stop = 1;
}

void pl_timing_prepare(int is_pal)
{
}

void plat_trigger_vibrate(int is_strong)
{
}

void pl_update_gun(int *xn, int *yn, int *xres, int *yres, int *in)
{
}

/* sound calls */
static int snd_init(void)
{
	return 0;
}

static void snd_finish(void)
{
}

static int snd_busy(void)
{
	if (samples_to_send > samples_sent)
		return 0; /* give more samples */
	else
		return 1;
}

static void snd_feed(void *buf, int bytes)
{
	audio_batch_cb(buf, bytes / 4);
	samples_sent += bytes / 4;
}

void out_register_libretro(struct out_driver *drv)
{
	drv->name = "libretro";
	drv->init = snd_init;
	drv->finish = snd_finish;
	drv->busy = snd_busy;
	drv->feed = snd_feed;
}

/* libretro */
void retro_set_environment(retro_environment_t cb) { environ_cb = cb; }
void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }

unsigned retro_api_version(void)
{
	return RETRO_API_VERSION;
}

void retro_set_controller_port_device(unsigned port, unsigned device)
{
}

void retro_get_system_info(struct retro_system_info *info)
{
	memset(info, 0, sizeof(*info));
	info->library_name = "PCSX-ReARMed";
	info->library_version = REV;
	info->valid_extensions = "bin|cue|img|mdf|pbp|cbn";
	info->need_fullpath = true;
}

void retro_get_system_av_info(struct retro_system_av_info *info)
{
	memset(info, 0, sizeof(*info));
	info->timing.fps            = 60;
	info->timing.sample_rate    = 44100;
	info->geometry.base_width   = 320;
	info->geometry.base_height  = 240;
	info->geometry.max_width    = 640;
	info->geometry.max_height   = 512;
	info->geometry.aspect_ratio = 4.0 / 3.0;
}

/* TODO */
size_t retro_serialize_size(void) 
{ 
	return 0;
}

bool retro_serialize(void *data, size_t size)
{ 
	return false;
}

bool retro_unserialize(const void *data, size_t size)
{
	return false;
}

void retro_cheat_reset(void)
{
}

void retro_cheat_set(unsigned index, bool enabled, const char *code)
{
}

bool retro_load_game(const struct retro_game_info *info)
{
#ifdef FRONTEND_SUPPORTS_RGB565
	enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
	if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
		fprintf(stderr, "RGB565 supported, using it\n");
	}
#endif

	if (plugins_opened) {
		ClosePlugins();
		plugins_opened = 0;
	}

	set_cd_image(info->path);

	/* have to reload after set_cd_image for correct cdr plugin */
	if (LoadPlugins() == -1) {
		printf("faled to load plugins\n");
		return false;
	}

	plugins_opened = 1;
	NetOpened = 0;

	if (OpenPlugins() == -1) {
		printf("faled to open plugins\n");
		return false;
	}

	plugin_call_rearmed_cbs();

	Config.PsxAuto = 1;
	if (CheckCdrom() == -1) {
		printf("unsupported/invalid CD image: %s\n", info->path);
		return false;
	}

	SysReset();

	if (LoadCdrom() == -1) {
		printf("could not load CD-ROM!\n");
		return false;
	}
	emu_on_new_cd(0);

	return true;
}

bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info)
{
	return false;
}

void retro_unload_game(void) 
{
}

unsigned retro_get_region(void)
{
	return RETRO_REGION_NTSC;
}

void *retro_get_memory_data(unsigned id)
{
	return Mcd1Data;
}

size_t retro_get_memory_size(unsigned id)
{
	return MCD_SIZE;
}

void retro_reset(void)
{
	SysReset();
}

static const unsigned short retro_psx_map[] = {
	[RETRO_DEVICE_ID_JOYPAD_B]	= 1 << DKEY_CROSS,
	[RETRO_DEVICE_ID_JOYPAD_Y]	= 1 << DKEY_SQUARE,
	[RETRO_DEVICE_ID_JOYPAD_SELECT]	= 1 << DKEY_SELECT,
	[RETRO_DEVICE_ID_JOYPAD_START]	= 1 << DKEY_START,
	[RETRO_DEVICE_ID_JOYPAD_UP]	= 1 << DKEY_UP,
	[RETRO_DEVICE_ID_JOYPAD_DOWN]	= 1 << DKEY_DOWN,
	[RETRO_DEVICE_ID_JOYPAD_LEFT]	= 1 << DKEY_LEFT,
	[RETRO_DEVICE_ID_JOYPAD_RIGHT]	= 1 << DKEY_RIGHT,
	[RETRO_DEVICE_ID_JOYPAD_A]	= 1 << DKEY_CIRCLE,
	[RETRO_DEVICE_ID_JOYPAD_X]	= 1 << DKEY_TRIANGLE,
	[RETRO_DEVICE_ID_JOYPAD_L]	= 1 << DKEY_L1,
	[RETRO_DEVICE_ID_JOYPAD_R]	= 1 << DKEY_R1,
	[RETRO_DEVICE_ID_JOYPAD_L2]	= 1 << DKEY_L2,
	[RETRO_DEVICE_ID_JOYPAD_R2]	= 1 << DKEY_R2,
	[RETRO_DEVICE_ID_JOYPAD_L3]	= 1 << DKEY_L3,
	[RETRO_DEVICE_ID_JOYPAD_R3]	= 1 << DKEY_R3,
};
#define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0]))

void retro_run(void) 
{
	int i;

	input_poll_cb();
	in_keystate = 0;
	for (i = 0; i < RETRO_PSX_MAP_LEN; i++)
		if (input_state_cb(1, RETRO_DEVICE_JOYPAD, 0, i))
			in_keystate |= retro_psx_map[i];
	in_keystate <<= 16;
	for (i = 0; i < RETRO_PSX_MAP_LEN; i++)
		if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, i))
			in_keystate |= retro_psx_map[i];

	stop = 0;
	psxCpu->Execute();

	samples_to_send += 44100 / 60;
	video_cb(vout_buf, game_width, game_height, game_width * 2);
}

void retro_init(void)
{
	const char *bios[] = { "scph1001", "scph5501", "scph7001" };
	const char *dir;
	char path[256];
	FILE *f = NULL;
	int i, ret, level;

	ret = emu_core_preinit();
	ret |= emu_core_init();
	if (ret != 0) {
		printf("PCSX init failed, sorry\n");
		exit(1);
	}

	vout_buf = malloc(640 * 512 * 2);

	if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
	{
		snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s/", dir);

		for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) {
			snprintf(path, sizeof(path), "%s/%s.bin", dir, bios[i]);
			f = fopen(path, "r");
			if (f != NULL) {
				snprintf(Config.Bios, sizeof(Config.Bios), "%s.bin", bios[i]);
				break;
			}
		}
	}
	if (f != NULL) {
		printf("found BIOS file: %s\n", Config.Bios);
		fclose(f);
	}
	else
		printf("no BIOS files found.\n");

	level = 1;
	environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);

	McdDisable[0] = 0;
	McdDisable[1] = 1;
	init_memcard(Mcd1Data);
}

void retro_deinit(void)
{
	SysClose();
	free(vout_buf);
	vout_buf = NULL;
}
Commit	Line	Data
	1	/*
	2	* (C) notaz, 2012
	3	*
	4	* This work is licensed under the terms of the GNU GPLv2 or later.
	5	* See the COPYING file in the top-level directory.
	6	*/
	7
	8	#include <stdio.h>
	9	#include <stdlib.h>
	10	#include <string.h>
	11
	12	#include "../libpcsxcore/misc.h"
	13	#include "../libpcsxcore/psxcounters.h"
	14	#include "../libpcsxcore/psxmem_map.h"
	15	#include "../libpcsxcore/new_dynarec/new_dynarec.h"
	16	#include "../plugins/dfsound/out.h"
	17	#include "../plugins/gpulib/cspace.h"
	18	#include "main.h"
	19	#include "plugin.h"
	20	#include "plugin_lib.h"
	21	#include "revision.h"
	22	#include "libretro.h"
	23
	24	static retro_video_refresh_t video_cb;
	25	static retro_input_poll_t input_poll_cb;
	26	static retro_input_state_t input_state_cb;
	27	static retro_environment_t environ_cb;
	28	static retro_audio_sample_batch_t audio_batch_cb;
	29
	30	static void *vout_buf;
	31	static int samples_sent, samples_to_send;
	32	static int plugins_opened;
	33
	34	/* memory card data */
	35	extern char Mcd1Data[MCD_SIZE];
	36	extern char McdDisable[2];
	37
	38	/* PCSX ReARMed core calls and stuff */
	39	int in_type1, in_type2;
	40	int in_a1[2] = { 127, 127 }, in_a2[2] = { 127, 127 };
	41	int in_keystate;
	42	int in_enable_vibration;
	43
	44	static void init_memcard(char *mcd_data)
	45	{
	46	unsigned off = 0;
	47	unsigned i;
	48
	49	memset(mcd_data, 0, MCD_SIZE);
	50
	51	mcd_data[off++] = 'M';
	52	mcd_data[off++] = 'C';
	53	off += 0x7d;
	54	mcd_data[off++] = 0x0e;
	55
	56	for (i = 0; i < 15; i++) {
	57	mcd_data[off++] = 0xa0;
	58	off += 0x07;
	59	mcd_data[off++] = 0xff;
	60	mcd_data[off++] = 0xff;
	61	off += 0x75;
	62	mcd_data[off++] = 0xa0;
	63	}
	64
	65	for (i = 0; i < 20; i++) {
	66	mcd_data[off++] = 0xff;
	67	mcd_data[off++] = 0xff;
	68	mcd_data[off++] = 0xff;
	69	mcd_data[off++] = 0xff;
	70	off += 0x04;
	71	mcd_data[off++] = 0xff;
	72	mcd_data[off++] = 0xff;
	73	off += 0x76;
	74	}
	75	}
	76
	77	static int vout_open(void)
	78	{
	79	return 0;
	80	}
	81
	82	static void vout_set_mode(int w, int h, int raw_w, int raw_h, int bpp)
	83	{
	84	}
	85
	86	#ifdef FRONTEND_SUPPORTS_RGB565
	87	static void convert(void *buf, size_t bytes)
	88	{
	89	unsigned int i, v, *p = buf;
	90
	91	for (i = 0; i < bytes / 4; i++) {
	92	v = p[i];
	93	p[i] = (v & 0x001f001f) \| ((v >> 1) & 0x7fe07fe0);
	94	}
	95	}
	96	#endif
	97
	98	static unsigned game_width;
	99	static unsigned game_height;
	100
	101	static void vout_flip(const void *vram, int stride, int bgr24, int w, int h)
	102	{
	103	unsigned short *dest = vout_buf;
	104	const unsigned short *src = vram;
	105	int dstride = w, h1 = h;
	106
	107	if (vram == NULL) {
	108	// blanking
	109	memset(vout_buf, 0, dstride * h * 2);
	110	goto out;
	111	}
	112
	113	if (bgr24)
	114	{
	115	// XXX: could we switch to RETRO_PIXEL_FORMAT_XRGB8888 here?
	116	for (; h1-- > 0; dest += dstride, src += stride)
	117	{
	118	bgr888_to_rgb565(dest, src, w * 3);
	119	}
	120	}
	121	else
	122	{
	123	for (; h1-- > 0; dest += dstride, src += stride)
	124	{
	125	bgr555_to_rgb565(dest, src, w * 2);
	126	}
	127	}
	128
	129	out:
	130	#ifndef FRONTEND_SUPPORTS_RGB565
	131	convert(vout_buf, w * h * 2);
	132	#endif
	133	game_width = w;
	134	game_height = h;
	135	pl_rearmed_cbs.flip_cnt++;
	136	}
	137
	138	static void vout_close(void)
	139	{
	140	}
	141
	142	static void *pl_mmap(unsigned int size)
	143	{
	144	return psxMap(0, size, 0, MAP_TAG_VRAM);
	145	}
	146
	147	static void pl_munmap(void *ptr, unsigned int size)
	148	{
	149	psxUnmap(ptr, size, MAP_TAG_VRAM);
	150	}
	151
	152	struct rearmed_cbs pl_rearmed_cbs = {
	153	.pl_vout_open = vout_open,
	154	.pl_vout_set_mode = vout_set_mode,
	155	.pl_vout_flip = vout_flip,
	156	.pl_vout_close = vout_close,
	157	.mmap = pl_mmap,
	158	.munmap = pl_munmap,
	159	/* from psxcounters */
	160	.gpu_hcnt = &hSyncCount,
	161	.gpu_frame_count = &frame_counter,
	162	};
	163
	164	void pl_frame_limit(void)
	165	{
	166	/* called once per frame, make psxCpu->Execute() above return */
	167	stop = 1;
	168	}
	169
	170	void pl_timing_prepare(int is_pal)
	171	{
	172	}
	173
	174	void plat_trigger_vibrate(int is_strong)
	175	{
	176	}
	177
	178	void pl_update_gun(int xn, int yn, int xres, int yres, int *in)
	179	{
	180	}
	181
	182	/* sound calls */
	183	static int snd_init(void)
	184	{
	185	return 0;
	186	}
	187
	188	static void snd_finish(void)
	189	{
	190	}
	191
	192	static int snd_busy(void)
	193	{
	194	if (samples_to_send > samples_sent)
	195	return 0; /* give more samples */
	196	else
	197	return 1;
	198	}
	199
	200	static void snd_feed(void *buf, int bytes)
	201	{
	202	audio_batch_cb(buf, bytes / 4);
	203	samples_sent += bytes / 4;
	204	}
	205
	206	void out_register_libretro(struct out_driver *drv)
	207	{
	208	drv->name = "libretro";
	209	drv->init = snd_init;
	210	drv->finish = snd_finish;
	211	drv->busy = snd_busy;
	212	drv->feed = snd_feed;
	213	}
	214
	215	/* libretro */
	216	void retro_set_environment(retro_environment_t cb) { environ_cb = cb; }
	217	void retro_set_video_refresh(retro_video_refresh_t cb) { video_cb = cb; }
	218	void retro_set_audio_sample(retro_audio_sample_t cb) { (void)cb; }
	219	void retro_set_audio_sample_batch(retro_audio_sample_batch_t cb) { audio_batch_cb = cb; }
	220	void retro_set_input_poll(retro_input_poll_t cb) { input_poll_cb = cb; }
	221	void retro_set_input_state(retro_input_state_t cb) { input_state_cb = cb; }
	222
	223	unsigned retro_api_version(void)
	224	{
	225	return RETRO_API_VERSION;
	226	}
	227
	228	void retro_set_controller_port_device(unsigned port, unsigned device)
	229	{
	230	}
	231
	232	void retro_get_system_info(struct retro_system_info *info)
	233	{
	234	memset(info, 0, sizeof(*info));
	235	info->library_name = "PCSX-ReARMed";
	236	info->library_version = REV;
	237	info->valid_extensions = "bin\|cue\|img\|mdf\|pbp\|cbn";
	238	info->need_fullpath = true;
	239	}
	240
	241	void retro_get_system_av_info(struct retro_system_av_info *info)
	242	{
	243	memset(info, 0, sizeof(*info));
	244	info->timing.fps = 60;
	245	info->timing.sample_rate = 44100;
	246	info->geometry.base_width = 320;
	247	info->geometry.base_height = 240;
	248	info->geometry.max_width = 640;
	249	info->geometry.max_height = 512;
	250	info->geometry.aspect_ratio = 4.0 / 3.0;
	251	}
	252
	253	/* TODO */
	254	size_t retro_serialize_size(void)
	255	{
	256	return 0;
	257	}
	258
	259	bool retro_serialize(void *data, size_t size)
	260	{
	261	return false;
	262	}
	263
	264	bool retro_unserialize(const void *data, size_t size)
	265	{
	266	return false;
	267	}
	268
	269	void retro_cheat_reset(void)
	270	{
	271	}
	272
	273	void retro_cheat_set(unsigned index, bool enabled, const char *code)
	274	{
	275	}
	276
	277	bool retro_load_game(const struct retro_game_info *info)
	278	{
	279	#ifdef FRONTEND_SUPPORTS_RGB565
	280	enum retro_pixel_format fmt = RETRO_PIXEL_FORMAT_RGB565;
	281	if (environ_cb(RETRO_ENVIRONMENT_SET_PIXEL_FORMAT, &fmt)) {
	282	fprintf(stderr, "RGB565 supported, using it\n");
	283	}
	284	#endif
	285
	286	if (plugins_opened) {
	287	ClosePlugins();
	288	plugins_opened = 0;
	289	}
	290
	291	set_cd_image(info->path);
	292
	293	/* have to reload after set_cd_image for correct cdr plugin */
	294	if (LoadPlugins() == -1) {
	295	printf("faled to load plugins\n");
	296	return false;
	297	}
	298
	299	plugins_opened = 1;
	300	NetOpened = 0;
	301
	302	if (OpenPlugins() == -1) {
	303	printf("faled to open plugins\n");
	304	return false;
	305	}
	306
	307	plugin_call_rearmed_cbs();
	308
	309	Config.PsxAuto = 1;
	310	if (CheckCdrom() == -1) {
	311	printf("unsupported/invalid CD image: %s\n", info->path);
	312	return false;
	313	}
	314
	315	SysReset();
	316
	317	if (LoadCdrom() == -1) {
	318	printf("could not load CD-ROM!\n");
	319	return false;
	320	}
	321	emu_on_new_cd(0);
	322
	323	return true;
	324	}
	325
	326	bool retro_load_game_special(unsigned game_type, const struct retro_game_info *info, size_t num_info)
	327	{
	328	return false;
	329	}
	330
	331	void retro_unload_game(void)
	332	{
	333	}
	334
	335	unsigned retro_get_region(void)
	336	{
	337	return RETRO_REGION_NTSC;
	338	}
	339
	340	void *retro_get_memory_data(unsigned id)
	341	{
	342	return Mcd1Data;
	343	}
	344
	345	size_t retro_get_memory_size(unsigned id)
	346	{
	347	return MCD_SIZE;
	348	}
	349
	350	void retro_reset(void)
	351	{
	352	SysReset();
	353	}
	354
	355	static const unsigned short retro_psx_map[] = {
	356	[RETRO_DEVICE_ID_JOYPAD_B] = 1 << DKEY_CROSS,
	357	[RETRO_DEVICE_ID_JOYPAD_Y] = 1 << DKEY_SQUARE,
	358	[RETRO_DEVICE_ID_JOYPAD_SELECT] = 1 << DKEY_SELECT,
	359	[RETRO_DEVICE_ID_JOYPAD_START] = 1 << DKEY_START,
	360	[RETRO_DEVICE_ID_JOYPAD_UP] = 1 << DKEY_UP,
	361	[RETRO_DEVICE_ID_JOYPAD_DOWN] = 1 << DKEY_DOWN,
	362	[RETRO_DEVICE_ID_JOYPAD_LEFT] = 1 << DKEY_LEFT,
	363	[RETRO_DEVICE_ID_JOYPAD_RIGHT] = 1 << DKEY_RIGHT,
	364	[RETRO_DEVICE_ID_JOYPAD_A] = 1 << DKEY_CIRCLE,
	365	[RETRO_DEVICE_ID_JOYPAD_X] = 1 << DKEY_TRIANGLE,
	366	[RETRO_DEVICE_ID_JOYPAD_L] = 1 << DKEY_L1,
	367	[RETRO_DEVICE_ID_JOYPAD_R] = 1 << DKEY_R1,
	368	[RETRO_DEVICE_ID_JOYPAD_L2] = 1 << DKEY_L2,
	369	[RETRO_DEVICE_ID_JOYPAD_R2] = 1 << DKEY_R2,
	370	[RETRO_DEVICE_ID_JOYPAD_L3] = 1 << DKEY_L3,
	371	[RETRO_DEVICE_ID_JOYPAD_R3] = 1 << DKEY_R3,
	372	};
	373	#define RETRO_PSX_MAP_LEN (sizeof(retro_psx_map) / sizeof(retro_psx_map[0]))
	374
	375	void retro_run(void)
	376	{
	377	int i;
	378
	379	input_poll_cb();
	380	in_keystate = 0;
	381	for (i = 0; i < RETRO_PSX_MAP_LEN; i++)
	382	if (input_state_cb(1, RETRO_DEVICE_JOYPAD, 0, i))
	383	in_keystate \|= retro_psx_map[i];
	384	in_keystate <<= 16;
	385	for (i = 0; i < RETRO_PSX_MAP_LEN; i++)
	386	if (input_state_cb(0, RETRO_DEVICE_JOYPAD, 0, i))
	387	in_keystate \|= retro_psx_map[i];
	388
	389	stop = 0;
	390	psxCpu->Execute();
	391
	392	samples_to_send += 44100 / 60;
	393	video_cb(vout_buf, game_width, game_height, game_width * 2);
	394	}
	395
	396	void retro_init(void)
	397	{
	398	const char *bios[] = { "scph1001", "scph5501", "scph7001" };
	399	const char *dir;
	400	char path[256];
	401	FILE *f = NULL;
	402	int i, ret, level;
	403
	404	ret = emu_core_preinit();
	405	ret \|= emu_core_init();
	406	if (ret != 0) {
	407	printf("PCSX init failed, sorry\n");
	408	exit(1);
	409	}
	410
	411	vout_buf = malloc(640 * 512 * 2);
	412
	413	if (environ_cb(RETRO_ENVIRONMENT_GET_SYSTEM_DIRECTORY, &dir) && dir)
	414	{
	415	snprintf(Config.BiosDir, sizeof(Config.BiosDir), "%s/", dir);
	416
	417	for (i = 0; i < sizeof(bios) / sizeof(bios[0]); i++) {
	418	snprintf(path, sizeof(path), "%s/%s.bin", dir, bios[i]);
	419	f = fopen(path, "r");
	420	if (f != NULL) {
	421	snprintf(Config.Bios, sizeof(Config.Bios), "%s.bin", bios[i]);
	422	break;
	423	}
	424	}
	425	}
	426	if (f != NULL) {
	427	printf("found BIOS file: %s\n", Config.Bios);
	428	fclose(f);
	429	}
	430	else
	431	printf("no BIOS files found.\n");
	432
	433	level = 1;
	434	environ_cb(RETRO_ENVIRONMENT_SET_PERFORMANCE_LEVEL, &level);
	435
	436	McdDisable[0] = 0;
	437	McdDisable[1] = 1;
	438	init_memcard(Mcd1Data);
	439	}
	440
	441	void retro_deinit(void)
	442	{
	443	SysClose();
	444	free(vout_buf);
	445	vout_buf = NULL;
	446	}