[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"

#include <pico/pico.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_TAB,    IN_BINDTYPE_EMU, PEVB_RESET },
	{ 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
74e770b1	20	#include <pico/pico.h>
74e770b1	21
636d5f25	22	static void *shadow_fb;
636d5f25	23
4e3551a5	24	const struct in_default_bind in_sdl_defbinds[] __attribute__((weak)) = {
636d5f25	25	{ SDLK_UP, IN_BINDTYPE_PLAYER12, GBTN_UP },
	26	{ SDLK_DOWN, IN_BINDTYPE_PLAYER12, GBTN_DOWN },
	27	{ SDLK_LEFT, IN_BINDTYPE_PLAYER12, GBTN_LEFT },
	28	{ SDLK_RIGHT, IN_BINDTYPE_PLAYER12, GBTN_RIGHT },
	29	{ SDLK_z, IN_BINDTYPE_PLAYER12, GBTN_A },
	30	{ SDLK_x, IN_BINDTYPE_PLAYER12, GBTN_B },
	31	{ SDLK_c, IN_BINDTYPE_PLAYER12, GBTN_C },
	32	{ SDLK_a, IN_BINDTYPE_PLAYER12, GBTN_X },
	33	{ SDLK_s, IN_BINDTYPE_PLAYER12, GBTN_Y },
	34	{ SDLK_d, IN_BINDTYPE_PLAYER12, GBTN_Z },
	35	{ SDLK_RETURN, IN_BINDTYPE_PLAYER12, GBTN_START },
	36	{ SDLK_f, IN_BINDTYPE_PLAYER12, GBTN_MODE },
	37	{ SDLK_ESCAPE, IN_BINDTYPE_EMU, PEVB_MENU },
9db6a544	38	{ SDLK_TAB, IN_BINDTYPE_EMU, PEVB_RESET },
636d5f25	39	{ SDLK_F1, IN_BINDTYPE_EMU, PEVB_STATE_SAVE },
	40	{ SDLK_F2, IN_BINDTYPE_EMU, PEVB_STATE_LOAD },
	41	{ SDLK_F3, IN_BINDTYPE_EMU, PEVB_SSLOT_PREV },
	42	{ SDLK_F4, IN_BINDTYPE_EMU, PEVB_SSLOT_NEXT },
	43	{ SDLK_F5, IN_BINDTYPE_EMU, PEVB_SWITCH_RND },
	44	{ SDLK_F6, IN_BINDTYPE_EMU, PEVB_PICO_PPREV },
	45	{ SDLK_F7, IN_BINDTYPE_EMU, PEVB_PICO_PNEXT },
	46	{ SDLK_F8, IN_BINDTYPE_EMU, PEVB_PICO_SWINP },
	47	{ SDLK_BACKSPACE, IN_BINDTYPE_EMU, PEVB_FF },
	48	{ 0, 0, 0 }
	49	};
	50
4e3551a5 PC	51	const struct menu_keymap in_sdl_key_map[] __attribute__((weak)) =
	52	{
	53	{ SDLK_UP, PBTN_UP },
	54	{ SDLK_DOWN, PBTN_DOWN },
	55	{ SDLK_LEFT, PBTN_LEFT },
	56	{ SDLK_RIGHT, PBTN_RIGHT },
	57	{ SDLK_RETURN, PBTN_MOK },
	58	{ SDLK_ESCAPE, PBTN_MBACK },
	59	{ SDLK_SEMICOLON, PBTN_MA2 },
	60	{ SDLK_QUOTE, PBTN_MA3 },
	61	{ SDLK_LEFTBRACKET, PBTN_L },
	62	{ SDLK_RIGHTBRACKET, PBTN_R },
	63	};
	64
	65	const struct menu_keymap in_sdl_joy_map[] __attribute__((weak)) =
	66	{
	67	{ SDLK_UP, PBTN_UP },
	68	{ SDLK_DOWN, PBTN_DOWN },
	69	{ SDLK_LEFT, PBTN_LEFT },
	70	{ SDLK_RIGHT, PBTN_RIGHT },
	71	/* joystick */
	72	{ SDLK_WORLD_0, PBTN_MOK },
	73	{ SDLK_WORLD_1, PBTN_MBACK },
	74	{ SDLK_WORLD_2, PBTN_MA2 },
	75	{ SDLK_WORLD_3, PBTN_MA3 },
	76	};
	77
d4bea61c PC	78	extern const char * const in_sdl_key_names[] __attribute__((weak));
d4bea61c PC	79
4e3551a5 PC	80	static const struct in_pdata in_sdl_platform_data = {
	81	.defbinds = in_sdl_defbinds,
	82	.key_map = in_sdl_key_map,
	83	.kmap_size = sizeof(in_sdl_key_map) / sizeof(in_sdl_key_map[0]),
	84	.joy_map = in_sdl_joy_map,
	85	.jmap_size = sizeof(in_sdl_joy_map) / sizeof(in_sdl_joy_map[0]),
d4bea61c	86	.key_names = in_sdl_key_names,
4e3551a5 PC	87	};
4e3551a5 PC	88
636d5f25	89	/* YUV stuff */
	90	static int yuv_ry[32], yuv_gy[32], yuv_by[32];
	91	static unsigned char yuv_u[32 * 2], yuv_v[32 * 2];
	92
	93	void bgr_to_uyvy_init(void)
	94	{
	95	int i, v;
	96
	97	/* init yuv converter:
	98	y0 = (int)((0.299f * r0) + (0.587f * g0) + (0.114f * b0));
	99	y1 = (int)((0.299f * r1) + (0.587f * g1) + (0.114f * b1));
	100	u = (int)(8 * 0.565f * (b0 - y0)) + 128;
	101	v = (int)(8 * 0.713f * (r0 - y0)) + 128;
	102	*/
	103	for (i = 0; i < 32; i++) {
	104	yuv_ry[i] = (int)(0.299f * i * 65536.0f + 0.5f);
	105	yuv_gy[i] = (int)(0.587f * i * 65536.0f + 0.5f);
	106	yuv_by[i] = (int)(0.114f * i * 65536.0f + 0.5f);
	107	}
	108	for (i = -32; i < 32; i++) {
	109	v = (int)(8 * 0.565f * i) + 128;
	110	if (v < 0)
	111	v = 0;
	112	if (v > 255)
	113	v = 255;
	114	yuv_u[i + 32] = v;
	115	v = (int)(8 * 0.713f * i) + 128;
	116	if (v < 0)
	117	v = 0;
	118	if (v > 255)
	119	v = 255;
	120	yuv_v[i + 32] = v;
	121	}
	122	}
	123
	124	void rgb565_to_uyvy(void d, const void s, int pixels)
	125	{
	126	unsigned int *dst = d;
	127	const unsigned short *src = s;
	128	const unsigned char *yu = yuv_u + 32;
	129	const unsigned char *yv = yuv_v + 32;
	130	int r0, g0, b0, r1, g1, b1;
	131	int y0, y1, u, v;
	132
	133	for (; pixels > 0; src += 2, dst++, pixels -= 2)
	134	{
	135	r0 = (src[0] >> 11) & 0x1f;
	136	g0 = (src[0] >> 6) & 0x1f;
	137	b0 = src[0] & 0x1f;
	138	r1 = (src[1] >> 11) & 0x1f;
	139	g1 = (src[1] >> 6) & 0x1f;
	140	b1 = src[1] & 0x1f;
	141	y0 = (yuv_ry[r0] + yuv_gy[g0] + yuv_by[b0]) >> 16;
	142	y1 = (yuv_ry[r1] + yuv_gy[g1] + yuv_by[b1]) >> 16;
	143	u = yu[b0 - y0];
	144	v = yv[r0 - y0];
	145	// valid Y range seems to be 16..235
	146	y0 = 16 + 219 * y0 / 31;
	147	y1 = 16 + 219 * y1 / 31;
	148
	149	*dst = (y1 << 24) \| (v << 16) \| (y0 << 8) \| u;
	150	}
	151	}
	152
153	void plat_video_flip(void)
154	{
155	if (plat_sdl_overlay != NULL) {
156	SDL_Rect dstrect =
157	{ 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };
158
159	SDL_LockYUVOverlay(plat_sdl_overlay);
160	rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
161	g_screen_width * g_screen_height);
162	SDL_UnlockYUVOverlay(plat_sdl_overlay);
163	SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
164	}
165	else if (plat_sdl_gl_active) {
166	gl_flip(shadow_fb, g_screen_width, g_screen_height);
167	}
168	else {
eb7ce29e PC	169	if (SDL_MUSTLOCK(plat_sdl_screen))
eb7ce29e PC	170	SDL_UnlockSurface(plat_sdl_screen);
636d5f25	171	SDL_Flip(plat_sdl_screen);
636d5f25	172	g_screen_ptr = plat_sdl_screen->pixels;
eb7ce29e	173	PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
636d5f25	174	}
	175	}
	176
	177	void plat_video_wait_vsync(void)
	178	{
	179	}
	180
	181	void plat_video_menu_enter(int is_rom_loaded)
	182	{
	183	plat_sdl_change_video_mode(g_menuscreen_w, g_menuscreen_h, 0);
d438a8dd	184	g_screen_ptr = shadow_fb;
636d5f25	185	}
	186
	187	void plat_video_menu_begin(void)
	188	{
	189	if (plat_sdl_overlay != NULL \|\| plat_sdl_gl_active) {
	190	g_menuscreen_ptr = shadow_fb;
	191	}
	192	else {
eb7ce29e PC	193	if (SDL_MUSTLOCK(plat_sdl_screen))
eb7ce29e PC	194	SDL_LockSurface(plat_sdl_screen);
636d5f25	195	g_menuscreen_ptr = plat_sdl_screen->pixels;
	196	}
	197	}
	198
	199	void plat_video_menu_end(void)
	200	{
	201	if (plat_sdl_overlay != NULL) {
	202	SDL_Rect dstrect =
	203	{ 0, 0, plat_sdl_screen->w, plat_sdl_screen->h };
	204
	205	SDL_LockYUVOverlay(plat_sdl_overlay);
	206	rgb565_to_uyvy(plat_sdl_overlay->pixels[0], shadow_fb,
	207	g_menuscreen_w * g_menuscreen_h);
	208	SDL_UnlockYUVOverlay(plat_sdl_overlay);
	209
	210	SDL_DisplayYUVOverlay(plat_sdl_overlay, &dstrect);
	211	}
	212	else if (plat_sdl_gl_active) {
	213	gl_flip(g_menuscreen_ptr, g_menuscreen_w, g_menuscreen_h);
	214	}
	215	else {
eb7ce29e PC	216	if (SDL_MUSTLOCK(plat_sdl_screen))
eb7ce29e PC	217	SDL_UnlockSurface(plat_sdl_screen);
636d5f25	218	SDL_Flip(plat_sdl_screen);
	219	}
	220	g_menuscreen_ptr = NULL;
	221
	222	}
	223
	224	void plat_video_menu_leave(void)
	225	{
	226	}
	227
	228	void plat_video_loop_prepare(void)
	229	{
	230	plat_sdl_change_video_mode(g_screen_width, g_screen_height, 0);
	231
	232	if (plat_sdl_overlay != NULL \|\| plat_sdl_gl_active) {
	233	g_screen_ptr = shadow_fb;
	234	}
	235	else {
eb7ce29e PC	236	if (SDL_MUSTLOCK(plat_sdl_screen))
eb7ce29e PC	237	SDL_LockSurface(plat_sdl_screen);
636d5f25	238	g_screen_ptr = plat_sdl_screen->pixels;
636d5f25	239	}
eb7ce29e	240	PicoDrawSetOutBuf(g_screen_ptr, g_screen_width * 2);
636d5f25	241	}
	242
	243	void plat_early_init(void)
	244	{
	245	}
	246
bec84f92	247	static void plat_sdl_quit(void)
	248	{
	249	// for now..
	250	exit(1);
	251	}
	252
636d5f25	253	void plat_init(void)
	254	{
	255	int shadow_size;
	256	int ret;
	257
	258	ret = plat_sdl_init();
	259	if (ret != 0)
	260	exit(1);
	261
bec84f92	262	plat_sdl_quit_cb = plat_sdl_quit;
bec84f92	263
fc11dd05	264	SDL_WM_SetCaption("PicoDrive " VERSION, NULL);
636d5f25	265
	266	g_menuscreen_w = plat_sdl_screen->w;
	267	g_menuscreen_h = plat_sdl_screen->h;
	268	g_menuscreen_ptr = NULL;
	269
	270	shadow_size = g_menuscreen_w * g_menuscreen_h * 2;
	271	if (shadow_size < 320 * 480 * 2)
	272	shadow_size = 320 * 480 * 2;
	273
	274	shadow_fb = malloc(shadow_size);
	275	g_menubg_ptr = malloc(shadow_size);
	276	if (shadow_fb == NULL \|\| g_menubg_ptr == NULL) {
	277	fprintf(stderr, "OOM\n");
	278	exit(1);
	279	}
	280
	281	g_screen_width = 320;
	282	g_screen_height = 240;
	283	g_screen_ptr = shadow_fb;
	284
4e3551a5	285	in_sdl_init(&in_sdl_platform_data, plat_sdl_event_handler);
636d5f25	286	in_probe();
	287
	288	bgr_to_uyvy_init();
	289	}
	290
	291	void plat_finish(void)
	292	{
	293	free(shadow_fb);
	294	shadow_fb = NULL;
	295	free(g_menubg_ptr);
	296	g_menubg_ptr = NULL;
	297	plat_sdl_finish();
	298	}