[picodrive.git] / platform / common / plat_sdl.c

/*
 * PicoDrive
 * (C) notaz, 2013
 *
 * This work is licensed under the terms of MAME license.
 * See COPYING file in the top-level directory.
 */

#include <stdio.h>

#include "../libpicofe/input.h"
#include "../libpicofe/plat_sdl.h"
#include "../libpicofe/in_sdl.h"
#include "../libpicofe/gl.h"
#include "emu.h"
#include "menu_pico.h"
#include "input_pico.h"
#include "version.h"

static void *shadow_fb;

const struct in_default_bind in_sdl_defbinds[] __attribute__((weak)) = {
	{ SDLK_UP,     IN_BINDTYPE_PLAYER12, GBTN_UP },
	{ SDLK_DOWN,   IN_BINDTYPE_PLAYER12, GBTN_DOWN },
	{ SDLK_LEFT,   IN_BINDTYPE_PLAYER12, GBTN_LEFT },
	{ SDLK_RIGHT,  IN_BINDTYPE_PLAYER12, GBTN_RIGHT },
	{ SDLK_z,      IN_BINDTYPE_PLAYER12, GBTN_A },
	{ SDLK_x,      IN_BINDTYPE_PLAYER12, GBTN_B },
	{ SDLK_c,      IN_BINDTYPE_PLAYER12, GBTN_C },
	{ SDLK_a,      IN_BINDTYPE_PLAYER12, GBTN_X },
	{ SDLK_s,      IN_BINDTYPE_PLAYER12, GBTN_Y },
	{ SDLK_d,      IN_BINDTYPE_PLAYER12, GBTN_Z },
	{ SDLK_RETURN, IN_BINDTYPE_PLAYER12, GBTN_START },
	{ SDLK_f,      IN_BINDTYPE_PLAYER12, GBTN_MODE },
	{ SDLK_ESCAPE, IN_BINDTYPE_EMU, PEVB_MENU },
	{ SDLK_F1,     IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
	{ SDLK_F2,     IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
	{ SDLK_F3,     IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },
	{ SDLK_F4,     IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },
	{ SDLK_F5,     IN_BINDTYPE_EMU, PEVB_SWITCH_RND },
	{ SDLK_F6,     IN_BINDTYPE_EMU, PEVB_PICO_PPREV },
	{ SDLK_F7,     IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },
	{ SDLK_F8,     IN_BINDTYPE_EMU, PEVB_PICO_SWINP },
	{ SDLK_BACKSPACE, IN_BINDTYPE_EMU, PEVB_FF },
	{ 0, 0, 0 }
};

const struct menu_keymap in_sdl_key_map[] __attribute__((weak)) =
{
	{ SDLK_UP,	PBTN_UP },
	{ SDLK_DOWN,	PBTN_DOWN },
	{ SDLK_LEFT,	PBTN_LEFT },
	{ SDLK_RIGHT,	PBTN_RIGHT },
	{ SDLK_RETURN,	PBTN_MOK },
	{ SDLK_ESCAPE,	PBTN_MBACK },
	{ SDLK_SEMICOLON,	PBTN_MA2 },
	{ SDLK_QUOTE,	PBTN_MA3 },
	{ SDLK_LEFTBRACKET,  PBTN_L },
	{ SDLK_RIGHTBRACKET, PBTN_R },
};

const struct menu_keymap in_sdl_joy_map[] __attribute__((weak)) =
{
	{ SDLK_UP,	PBTN_UP },
	{ SDLK_DOWN,	PBTN_DOWN },
	{ SDLK_LEFT,	PBTN_LEFT },
	{ SDLK_RIGHT,	PBTN_RIGHT },
	/* joystick */
	{ SDLK_WORLD_0,	PBTN_MOK },
	{ SDLK_WORLD_1,	PBTN_MBACK },
	{ SDLK_WORLD_2,	PBTN_MA2 },
	{ SDLK_WORLD_3,	PBTN_MA3 },
};

extern const char * const in_sdl_key_names[] __attribute__((weak));

static const struct in_pdata in_sdl_platform_data = {
	.defbinds = in_sdl_defbinds,
	.key_map = in_sdl_key_map,
	.kmap_size = sizeof(in_sdl_key_map) / sizeof(in_sdl_key_map[0]),
	.joy_map = in_sdl_joy_map,
	.jmap_size = sizeof(in_sdl_joy_map) / sizeof(in_sdl_joy_map[0]),
	.key_names = in_sdl_key_names,
};

/* YUV stuff */
static int yuv_ry[32], yuv_gy[32], yuv_by[32];
static unsigned char yuv_u[32 * 2], yuv_v[32 * 2];

void bgr_to_uyvy_init(void)
{
  int i, v;

  /* init yuv converter:
    y0 = (int)((0.299f * r0) + (0.587f * g0) + (0.114f * b0));
    y1 = (int)((0.299f * r1) + (0.587f * g1) + (0.114f * b1));
    u = (int)(8 * 0.565f * (b0 - y0)) + 128;
    v = (int)(8 * 0.713f * (r0 - y0)) + 128;
  */
  for (i = 0; i < 32; i++) {
    yuv_ry[i] = (int)(0.299f * i * 65536.0f + 0.5f);
    yuv_gy[i] = (int)(0.587f * i * 65536.0f + 0.5f);
    yuv_by[i] = (int)(0.114f * i * 65536.0f + 0.5f);
  }
  for (i = -32; i < 32; i++) {
    v = (int)(8 * 0.565f * i) + 128;
    if (v < 0)
      v = 0;
    if (v > 255)
      v = 255;
    yuv_u[i + 32] = v;
    v = (int)(8 * 0.713f * i) + 128;
    if (v < 0)
      v = 0;
    if (v > 255)
      v = 255;
    yuv_v[i + 32] = v;
  }
}

void rgb565_to_uyvy(void *d, const void *s, int pixels)
{
  unsigned int *dst = d;
  const unsigned short *src = s;
  const unsigned char *yu = yuv_u + 32;
  const unsigned char *yv = yuv_v + 32;
  int r0, g0, b0, r1, g1, b1;
  int y0, y1, u, v;

  for (; pixels > 0; src += 2, dst++, pixels -= 2)
  {
    r0 = (src[0] >> 11) & 0x1f;
    g0 = (src[0] >> 6) & 0x1f;
    b0 =  src[0] & 0x1f;
    r1 = (src[1] >> 11) & 0x1f;
    g1 = (src[1] >> 6) & 0x1f;
    b1 =  src[1] & 0x1f;
    y0 = (yuv_ry[r0] + yuv_gy[g0] + yuv_by[b0]) >> 16;
    y1 = (yuv_ry[r1] + yuv_gy[g1] + yuv_by[b1]) >> 16;
    u = yu[b0 - y0];
    v = yv[r0 - y0];
    // valid Y range seems to be 16..235
    y0 = 16 + 219 * y0 / 31;
    y1 = 16 + 219 * y1 / 31;

    *dst = (y1 << 24) | (v << 16) | (y0 << 8) | u;
  }
}

void plat_video_flip(void)
{
	if (plat_sdl_overlay != NULL) {
		SDL_Rect dstrect =
			{ 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };

		SDL_LockYUVOverlay(plat_sdl_overlay);
		rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
				g_screen_width * g_screen_height);
		SDL_UnlockYUVOverlay(plat_sdl_overlay);
		SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
	}
	else if (plat_sdl_gl_active) {
		gl_flip(shadow_fb, g_screen_width, g_screen_height);
	}
	else {
		if (SDL_MUSTLOCK(plat_sdl_screen))
			SDL_UnlockSurface(plat_sdl_screen);
		SDL_Flip(plat_sdl_screen);
		g_screen_ptr = plat_sdl_screen->pixels;
		PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
	}
}

void plat_video_wait_vsync(void)
{
}

void plat_video_menu_enter(int is_rom_loaded)
{
	plat_sdl_change_video_mode(g_menuscreen_w, g_menuscreen_h, 0);
	g_screen_ptr = shadow_fb;
}

void plat_video_menu_begin(void)
{
	if (plat_sdl_overlay != NULL || plat_sdl_gl_active) {
		g_menuscreen_ptr = shadow_fb;
	}
	else {
		if (SDL_MUSTLOCK(plat_sdl_screen))
			SDL_LockSurface(plat_sdl_screen);
		g_menuscreen_ptr = plat_sdl_screen->pixels;
	}
}

void plat_video_menu_end(void)
{
	if (plat_sdl_overlay != NULL) {
		SDL_Rect dstrect =
			{ 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };

		SDL_LockYUVOverlay(plat_sdl_overlay);
		rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
				g_menuscreen_w * g_menuscreen_h);
		SDL_UnlockYUVOverlay(plat_sdl_overlay);

		SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
	}
	else if (plat_sdl_gl_active) {
		gl_flip(g_menuscreen_ptr, g_menuscreen_w, g_menuscreen_h);
	}
	else {
		if (SDL_MUSTLOCK(plat_sdl_screen))
			SDL_UnlockSurface(plat_sdl_screen);
		SDL_Flip(plat_sdl_screen);
	}
	g_menuscreen_ptr = NULL;

}

void plat_video_menu_leave(void)
{
}

void plat_video_loop_prepare(void)
{
	plat_sdl_change_video_mode(g_screen_width, g_screen_height, 0);

	if (plat_sdl_overlay != NULL || plat_sdl_gl_active) {
		g_screen_ptr = shadow_fb;
	}
	else {
		if (SDL_MUSTLOCK(plat_sdl_screen))
			SDL_LockSurface(plat_sdl_screen);
		g_screen_ptr = plat_sdl_screen->pixels;
	}
	PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
}

void plat_early_init(void)
{
}

static void plat_sdl_quit(void)
{
	// for now..
	exit(1);
}

void plat_init(void)
{
	int shadow_size;
	int ret;

	ret = plat_sdl_init();
	if (ret != 0)
		exit(1);

	plat_sdl_quit_cb = plat_sdl_quit;

	SDL_WM_SetCaption("PicoDrive " VERSION, NULL);

	g_menuscreen_w = plat_sdl_screen->w;
	g_menuscreen_h = plat_sdl_screen->h;
	g_menuscreen_ptr = NULL;

	shadow_size = g_menuscreen_w * g_menuscreen_h * 2;
	if (shadow_size < 320 * 480 * 2)
		shadow_size = 320 * 480 * 2;

	shadow_fb = malloc(shadow_size);
	g_menubg_ptr = malloc(shadow_size);
	if (shadow_fb == NULL || g_menubg_ptr == NULL) {
		fprintf(stderr, "OOM\n");
		exit(1);
	}

	g_screen_width = 320;
	g_screen_height = 240;
	g_screen_ptr = shadow_fb;

	in_sdl_init(&in_sdl_platform_data, plat_sdl_event_handler);
	in_probe();

	bgr_to_uyvy_init();
}

void plat_finish(void)
{
	free(shadow_fb);
	shadow_fb = NULL;
	free(g_menubg_ptr);
	g_menubg_ptr = NULL;
	plat_sdl_finish();
}
Commit	Line	Data
636d5f25	1	/*
	2	* PicoDrive
	3	* (C) notaz, 2013
	4	*
	5	* This work is licensed under the terms of MAME license.
	6	* See COPYING file in the top-level directory.
	7	*/
	8
	9	#include <stdio.h>
	10
	11	#include "../libpicofe/input.h"
	12	#include "../libpicofe/plat_sdl.h"
	13	#include "../libpicofe/in_sdl.h"
	14	#include "../libpicofe/gl.h"
	15	#include "emu.h"
	16	#include "menu_pico.h"
	17	#include "input_pico.h"
	18	#include "version.h"
	19
636d5f25	20	static void *shadow_fb;
636d5f25	21
4e3551a5	22	const struct in_default_bind in_sdl_defbinds[] __attribute__((weak)) = {
636d5f25	23	{ SDLK_UP, IN_BINDTYPE_PLAYER12, GBTN_UP },
	24	{ SDLK_DOWN, IN_BINDTYPE_PLAYER12, GBTN_DOWN },
	25	{ SDLK_LEFT, IN_BINDTYPE_PLAYER12, GBTN_LEFT },
	26	{ SDLK_RIGHT, IN_BINDTYPE_PLAYER12, GBTN_RIGHT },
	27	{ SDLK_z, IN_BINDTYPE_PLAYER12, GBTN_A },
	28	{ SDLK_x, IN_BINDTYPE_PLAYER12, GBTN_B },
	29	{ SDLK_c, IN_BINDTYPE_PLAYER12, GBTN_C },
	30	{ SDLK_a, IN_BINDTYPE_PLAYER12, GBTN_X },
	31	{ SDLK_s, IN_BINDTYPE_PLAYER12, GBTN_Y },
	32	{ SDLK_d, IN_BINDTYPE_PLAYER12, GBTN_Z },
	33	{ SDLK_RETURN, IN_BINDTYPE_PLAYER12, GBTN_START },
	34	{ SDLK_f, IN_BINDTYPE_PLAYER12, GBTN_MODE },
	35	{ SDLK_ESCAPE, IN_BINDTYPE_EMU, PEVB_MENU },
	36	{ SDLK_F1, IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
	37	{ SDLK_F2, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
	38	{ SDLK_F3, IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },
	39	{ SDLK_F4, IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },
	40	{ SDLK_F5, IN_BINDTYPE_EMU, PEVB_SWITCH_RND },
	41	{ SDLK_F6, IN_BINDTYPE_EMU, PEVB_PICO_PPREV },
	42	{ SDLK_F7, IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },
	43	{ SDLK_F8, IN_BINDTYPE_EMU, PEVB_PICO_SWINP },
	44	{ SDLK_BACKSPACE, IN_BINDTYPE_EMU, PEVB_FF },
	45	{ 0, 0, 0 }
	46	};
	47
4e3551a5 PC	48	const struct menu_keymap in_sdl_key_map[] __attribute__((weak)) =
	49	{
	50	{ SDLK_UP, PBTN_UP },
	51	{ SDLK_DOWN, PBTN_DOWN },
	52	{ SDLK_LEFT, PBTN_LEFT },
	53	{ SDLK_RIGHT, PBTN_RIGHT },
	54	{ SDLK_RETURN, PBTN_MOK },
	55	{ SDLK_ESCAPE, PBTN_MBACK },
	56	{ SDLK_SEMICOLON, PBTN_MA2 },
	57	{ SDLK_QUOTE, PBTN_MA3 },
	58	{ SDLK_LEFTBRACKET, PBTN_L },
	59	{ SDLK_RIGHTBRACKET, PBTN_R },
	60	};
	61
	62	const struct menu_keymap in_sdl_joy_map[] __attribute__((weak)) =
	63	{
	64	{ SDLK_UP, PBTN_UP },
	65	{ SDLK_DOWN, PBTN_DOWN },
	66	{ SDLK_LEFT, PBTN_LEFT },
	67	{ SDLK_RIGHT, PBTN_RIGHT },
	68	/* joystick */
	69	{ SDLK_WORLD_0, PBTN_MOK },
	70	{ SDLK_WORLD_1, PBTN_MBACK },
	71	{ SDLK_WORLD_2, PBTN_MA2 },
	72	{ SDLK_WORLD_3, PBTN_MA3 },
	73	};
	74
d4bea61c PC	75	extern const char * const in_sdl_key_names[] __attribute__((weak));
d4bea61c PC	76
4e3551a5 PC	77	static const struct in_pdata in_sdl_platform_data = {
	78	.defbinds = in_sdl_defbinds,
	79	.key_map = in_sdl_key_map,
	80	.kmap_size = sizeof(in_sdl_key_map) / sizeof(in_sdl_key_map[0]),
	81	.joy_map = in_sdl_joy_map,
	82	.jmap_size = sizeof(in_sdl_joy_map) / sizeof(in_sdl_joy_map[0]),
d4bea61c	83	.key_names = in_sdl_key_names,
4e3551a5 PC	84	};
4e3551a5 PC	85
636d5f25	86	/* YUV stuff */
	87	static int yuv_ry[32], yuv_gy[32], yuv_by[32];
	88	static unsigned char yuv_u[32 * 2], yuv_v[32 * 2];
	89
	90	void bgr_to_uyvy_init(void)
	91	{
	92	int i, v;
	93
	94	/* init yuv converter:
	95	y0 = (int)((0.299f * r0) + (0.587f * g0) + (0.114f * b0));
	96	y1 = (int)((0.299f * r1) + (0.587f * g1) + (0.114f * b1));
	97	u = (int)(8 * 0.565f * (b0 - y0)) + 128;
	98	v = (int)(8 * 0.713f * (r0 - y0)) + 128;
	99	*/
	100	for (i = 0; i < 32; i++) {
	101	yuv_ry[i] = (int)(0.299f * i * 65536.0f + 0.5f);
	102	yuv_gy[i] = (int)(0.587f * i * 65536.0f + 0.5f);
	103	yuv_by[i] = (int)(0.114f * i * 65536.0f + 0.5f);
	104	}
	105	for (i = -32; i < 32; i++) {
	106	v = (int)(8 * 0.565f * i) + 128;
	107	if (v < 0)
	108	v = 0;
	109	if (v > 255)
	110	v = 255;
	111	yuv_u[i + 32] = v;
	112	v = (int)(8 * 0.713f * i) + 128;
	113	if (v < 0)
	114	v = 0;
	115	if (v > 255)
	116	v = 255;
	117	yuv_v[i + 32] = v;
	118	}
	119	}
	120
	121	void rgb565_to_uyvy(void d, const void s, int pixels)
	122	{
	123	unsigned int *dst = d;
	124	const unsigned short *src = s;
	125	const unsigned char *yu = yuv_u + 32;
	126	const unsigned char *yv = yuv_v + 32;
	127	int r0, g0, b0, r1, g1, b1;
	128	int y0, y1, u, v;
	129
	130	for (; pixels > 0; src += 2, dst++, pixels -= 2)
	131	{
	132	r0 = (src[0] >> 11) & 0x1f;
	133	g0 = (src[0] >> 6) & 0x1f;
	134	b0 = src[0] & 0x1f;
	135	r1 = (src[1] >> 11) & 0x1f;
	136	g1 = (src[1] >> 6) & 0x1f;
	137	b1 = src[1] & 0x1f;
	138	y0 = (yuv_ry[r0] + yuv_gy[g0] + yuv_by[b0]) >> 16;
	139	y1 = (yuv_ry[r1] + yuv_gy[g1] + yuv_by[b1]) >> 16;
	140	u = yu[b0 - y0];
	141	v = yv[r0 - y0];
	142	// valid Y range seems to be 16..235
	143	y0 = 16 + 219 * y0 / 31;
	144	y1 = 16 + 219 * y1 / 31;
	145
	146	*dst = (y1 << 24) \| (v << 16) \| (y0 << 8) \| u;
	147	}
	148	}
	149
150	void plat_video_flip(void)
151	{
152	if (plat_sdl_overlay != NULL) {
153	SDL_Rect dstrect =
154	{ 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };
155
156	SDL_LockYUVOverlay(plat_sdl_overlay);
157	rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
158	g_screen_width * g_screen_height);
159	SDL_UnlockYUVOverlay(plat_sdl_overlay);
160	SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
161	}
162	else if (plat_sdl_gl_active) {
163	gl_flip(shadow_fb, g_screen_width, g_screen_height);
164	}
165	else {
eb7ce29e PC	166	if (SDL_MUSTLOCK(plat_sdl_screen))
eb7ce29e PC	167	SDL_UnlockSurface(plat_sdl_screen);
636d5f25	168	SDL_Flip(plat_sdl_screen);
636d5f25	169	g_screen_ptr = plat_sdl_screen->pixels;
eb7ce29e	170	PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
636d5f25	171	}
	172	}
	173
	174	void plat_video_wait_vsync(void)
	175	{
	176	}
	177
	178	void plat_video_menu_enter(int is_rom_loaded)
	179	{
	180	plat_sdl_change_video_mode(g_menuscreen_w, g_menuscreen_h, 0);
d438a8dd	181	g_screen_ptr = shadow_fb;
636d5f25	182	}
	183
	184	void plat_video_menu_begin(void)
	185	{
	186	if (plat_sdl_overlay != NULL \|\| plat_sdl_gl_active) {
	187	g_menuscreen_ptr = shadow_fb;
	188	}
	189	else {
eb7ce29e PC	190	if (SDL_MUSTLOCK(plat_sdl_screen))
eb7ce29e PC	191	SDL_LockSurface(plat_sdl_screen);
636d5f25	192	g_menuscreen_ptr = plat_sdl_screen->pixels;
	193	}
	194	}
	195
	196	void plat_video_menu_end(void)
	197	{
	198	if (plat_sdl_overlay != NULL) {
	199	SDL_Rect dstrect =
	200	{ 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };
	201
	202	SDL_LockYUVOverlay(plat_sdl_overlay);
	203	rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
	204	g_menuscreen_w * g_menuscreen_h);
	205	SDL_UnlockYUVOverlay(plat_sdl_overlay);
	206
	207	SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
	208	}
	209	else if (plat_sdl_gl_active) {
	210	gl_flip(g_menuscreen_ptr, g_menuscreen_w, g_menuscreen_h);
	211	}
	212	else {
eb7ce29e PC	213	if (SDL_MUSTLOCK(plat_sdl_screen))
eb7ce29e PC	214	SDL_UnlockSurface(plat_sdl_screen);
636d5f25	215	SDL_Flip(plat_sdl_screen);
	216	}
	217	g_menuscreen_ptr = NULL;
	218
	219	}
	220
	221	void plat_video_menu_leave(void)
	222	{
	223	}
	224
	225	void plat_video_loop_prepare(void)
	226	{
	227	plat_sdl_change_video_mode(g_screen_width, g_screen_height, 0);
	228
	229	if (plat_sdl_overlay != NULL \|\| plat_sdl_gl_active) {
	230	g_screen_ptr = shadow_fb;
	231	}
	232	else {
eb7ce29e PC	233	if (SDL_MUSTLOCK(plat_sdl_screen))
eb7ce29e PC	234	SDL_LockSurface(plat_sdl_screen);
636d5f25	235	g_screen_ptr = plat_sdl_screen->pixels;
636d5f25	236	}
eb7ce29e	237	PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
636d5f25	238	}
	239
	240	void plat_early_init(void)
	241	{
	242	}
	243
bec84f92	244	static void plat_sdl_quit(void)
	245	{
	246	// for now..
	247	exit(1);
	248	}
	249
636d5f25	250	void plat_init(void)
	251	{
	252	int shadow_size;
	253	int ret;
	254
	255	ret = plat_sdl_init();
	256	if (ret != 0)
	257	exit(1);
	258
bec84f92	259	plat_sdl_quit_cb = plat_sdl_quit;
bec84f92	260
fc11dd05	261	SDL_WM_SetCaption("PicoDrive " VERSION, NULL);
636d5f25	262
	263	g_menuscreen_w = plat_sdl_screen->w;
	264	g_menuscreen_h = plat_sdl_screen->h;
	265	g_menuscreen_ptr = NULL;
	266
	267	shadow_size = g_menuscreen_w * g_menuscreen_h * 2;
	268	if (shadow_size < 320 * 480 * 2)
	269	shadow_size = 320 * 480 * 2;
	270
	271	shadow_fb = malloc(shadow_size);
	272	g_menubg_ptr = malloc(shadow_size);
	273	if (shadow_fb == NULL \|\| g_menubg_ptr == NULL) {
	274	fprintf(stderr, "OOM\n");
	275	exit(1);
	276	}
	277
	278	g_screen_width = 320;
	279	g_screen_height = 240;
	280	g_screen_ptr = shadow_fb;
	281
4e3551a5	282	in_sdl_init(&in_sdl_platform_data, plat_sdl_event_handler);
636d5f25	283	in_probe();
	284
	285	bgr_to_uyvy_init();
	286	}
	287
	288	void plat_finish(void)
	289	{
	290	free(shadow_fb);
	291	shadow_fb = NULL;
	292	free(g_menubg_ptr);
	293	g_menubg_ptr = NULL;
	294	plat_sdl_finish();
	295	}