X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=pandora%2Femu.c;h=3fbda4a2e34111c728c5931ac6b820e1f7ce4db3;hb=86c1049d1fba4c8752fd08c6bc848c3318b91eac;hp=2d873dfc843bb5968ed6fb92b77c856e294024a4;hpb=36f6fd5afec3bd982c715f6d39d5712dacb237cd;p=libpicofe.git

diff --git a/pandora/emu.c b/pandora/emu.c
index 2d873df..3fbda4a 100644
--- a/pandora/emu.c
+++ b/pandora/emu.c
@@ -1,4 +1,4 @@
-// (c) Copyright 2006-2008 notaz, All rights reserved.
+// (c) Copyright 2006-2009 notaz, All rights reserved.
 // Free for non-commercial use.
 
 // For commercial use, separate licencing terms must be obtained.
@@ -6,27 +6,20 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/time.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <linux/limits.h>
-#include <ctype.h>
-#include <unistd.h>
-
 #include <stdarg.h>
 
-#include "../gp2x/emu.h"
-#include "../gp2x/usbjoy.h"
-#include "../gp2x/menu.h"
 #include "../common/arm_utils.h"
 #include "../common/fonts.h"
 #include "../common/emu.h"
+#include "../common/menu.h"
 #include "../common/config.h"
-#include "../common/common.h"
+#include "../common/input.h"
+#include "../linux/sndout_oss.h"
 #include "asm_utils.h"
 
-#include <Pico/PicoInt.h>
-#include <Pico/Patch.h>
-#include <Pico/sound/mix.h>
+#include <pico/pico_int.h>
+#include <pico/patch.h>
+#include <pico/sound/mix.h>
 #include <zlib/zlib.h>
 
 //#define PFRAMES
@@ -40,31 +33,16 @@
 #endif
 
 
-int engineState;
-int select_exits = 0;
-
-char romFileName[PATH_MAX];
-
 static short __attribute__((aligned(4))) sndBuffer[2*44100/50];
-static struct timeval noticeMsgTime = { 0, 0 };	// when started showing
 static int osd_fps_x;
 unsigned char *PicoDraw2FB = NULL;  // temporary buffer for alt renderer
-int reset_timing = 0;
 
 #define PICO_PEN_ADJUST_X 4
 #define PICO_PEN_ADJUST_Y 2
-static int pico_pen_x = SCREEN_WIDTH/2, pico_pen_y = 240/2;
+static int pico_pen_x = 0, pico_pen_y = 240/2;
 
-static void emu_msg_cb(const char *msg);
-static void emu_msg_tray_open(void);
-
-
-void emu_noticeMsgUpdated(void)
-{
-	gettimeofday(&noticeMsgTime, 0);
-}
 
-int emu_getMainDir(char *dst, int len)
+int plat_get_root_dir(char *dst, int len)
 {
 	extern char **g_argv;
 	int j;
@@ -79,67 +57,12 @@ int emu_getMainDir(char *dst, int len)
 	return j + 1;
 }
 
-void emu_Init(void)
-{
-	// make temp buffer for alt renderer
-	PicoDraw2FB = malloc((8+320)*(8+240+8));
-	if (!PicoDraw2FB)
-	{
-		printf("PicoDraw2FB == 0\n");
-	}
-
-	// make dirs for saves, cfgs, etc.
-	mkdir("mds", 0777);
-	mkdir("srm", 0777);
-	mkdir("brm", 0777);
-	mkdir("cfg", 0777);
-
-	PicoInit();
-	PicoMessage = emu_msg_cb;
-	PicoMCDopenTray = emu_msg_tray_open;
-	PicoMCDcloseTray = menu_loop_tray;
-}
-
-
-static void scaling_update(void)
-{
-	PicoOpt &= ~0x4100;
-	switch (currentConfig.scaling) {
-		default: break; // off
-		case 1:  // hw hor
-		case 2:  PicoOpt |=  0x0100; break; // hw hor+vert
-		case 3:  PicoOpt |=  0x4000; break; // sw hor
-	}
-}
-
-
-void emu_Deinit(void)
-{
-	// save SRAM
-	if((currentConfig.EmuOpt & 1) && SRam.changed) {
-		emu_SaveLoadGame(0, 1);
-		SRam.changed = 0;
-	}
-
-	if (!(currentConfig.EmuOpt & 0x20)) {
-		config_writelrom(PicoConfigFile);
-#ifndef NO_SYNC
-		sync();
-#endif
-	}
-
-	free(PicoDraw2FB);
-
-	PicoExit();
-}
-
-void emu_prepareDefaultConfig(void)
+void pemu_prep_defconfig(void)
 {
 	memset(&defaultConfig, 0, sizeof(defaultConfig));
 	defaultConfig.EmuOpt    = 0x8f | 0x00600; // | <- confirm_save, cd_leds
 	defaultConfig.s_PicoOpt  = 0x0f | POPT_EXT_FM|POPT_EN_MCD_PCM|POPT_EN_MCD_CDDA|POPT_EN_SVP_DRC;
 	defaultConfig.s_PicoOpt |= POPT_ACC_SPRITES|POPT_EN_MCD_GFX;
-	defaultConfig.s_PicoOpt &= ~POPT_EN_SVP_DRC; // crashes :(
 	defaultConfig.EmuOpt    &= ~8; // no save gzip
 	defaultConfig.s_PsndRate = 44100;
 	defaultConfig.s_PicoRegion = 0;
@@ -155,14 +78,14 @@ void emu_prepareDefaultConfig(void)
 static void textOut16(int x, int y, const char *text)
 {
 	int i,l,len=strlen(text);
-	unsigned int *screen = (unsigned int *)((unsigned short *)SCREEN_BUFFER + (x&~1) + y*SCREEN_WIDTH);
+	unsigned int *screen = (unsigned int *)((unsigned short *)g_screen_ptr + (x&~1) + y*g_screen_width);
 
 	for (i = 0; i < len; i++)
 	{
 		for (l=0;l<16;)
 		{
 			unsigned char fd = fontdata8x8[((text[i])*8)+l/2];
-			unsigned int *d = &screen[l*SCREEN_WIDTH/2];
+			unsigned int *d = &screen[l*g_screen_width/2];
 			if (fd&0x80) d[0]=0xffffffff;
 			if (fd&0x40) d[1]=0xffffffff;
 			if (fd&0x20) d[2]=0xffffffff;
@@ -171,7 +94,7 @@ static void textOut16(int x, int y, const char *text)
 			if (fd&0x04) d[5]=0xffffffff;
 			if (fd&0x02) d[6]=0xffffffff;
 			if (fd&0x01) d[7]=0xffffffff;
-			l++; d = &screen[l*SCREEN_WIDTH/2];
+			l++; d = &screen[l*g_screen_width/2];
 			if (fd&0x80) d[0]=0xffffffff;
 			if (fd&0x40) d[1]=0xffffffff;
 			if (fd&0x20) d[2]=0xffffffff;
@@ -187,7 +110,7 @@ static void textOut16(int x, int y, const char *text)
 }
 
 
-void osd_text(int x, int y, const char *text)
+static void osd_text(int x, int y, const char *text)
 {
 	int len = strlen(text)*8;
 
@@ -196,19 +119,19 @@ void osd_text(int x, int y, const char *text)
 		x &= ~3; // align x
 		len = (len+3) >> 2;
 		for (h = 0; h < 8; h++) {
-			p = (int *) ((unsigned char *) gp2x_screen+x+SCREEN_WIDTH*(y+h));
+			p = (int *) ((unsigned char *) g_screen_ptr+x+g_screen_width*(y+h));
 			for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
 		}
-		emu_textOut8(x, y, text);
+		emu_text_out8(x, y, text);
 	} else {
 		int *p, i, h;
 		x &= ~1; // align x
 		len++;
 		for (h = 0; h < 16; h++) {
-			p = (int *) ((unsigned short *) gp2x_screen+x+SCREEN_WIDTH*(y+h));
+			p = (int *) ((unsigned short *) g_screen_ptr+x+g_screen_width*(y+h));
 			for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;
 		}
-		textOut16(x, y, text);
+		text_out16(x, y, text);
 	}
 }
 
@@ -223,26 +146,26 @@ static void draw_cd_leds(void)
 		// 8-bit modes
 		unsigned int col_g = (old_reg & 2) ? 0xc0c0c0c0 : 0xe0e0e0e0;
 		unsigned int col_r = (old_reg & 1) ? 0xd0d0d0d0 : 0xe0e0e0e0;
-		*(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+ 4) =
-		*(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+ 4) =
-		*(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+ 4) = col_g;
-		*(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*2+12) =
-		*(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*3+12) =
-		*(unsigned int *)((char *)gp2x_screen + SCREEN_WIDTH*4+12) = col_r;
+		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+ 4) =
+		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+ 4) =
+		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+ 4) = col_g;
+		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*2+12) =
+		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*3+12) =
+		*(unsigned int *)((char *)g_screen_ptr + g_screen_width*4+12) = col_r;
 	} else {
 		// 16-bit modes
-		unsigned int *p = (unsigned int *)((short *)gp2x_screen + SCREEN_WIDTH*2+4);
+		unsigned int *p = (unsigned int *)((short *)g_screen_ptr + g_screen_width*2+4);
 		unsigned int col_g = (old_reg & 2) ? 0x06000600 : 0;
 		unsigned int col_r = (old_reg & 1) ? 0xc000c000 : 0;
-		*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;
-		*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += SCREEN_WIDTH/2 - 12/2;
+		*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
+		*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r; p += g_screen_width/2 - 12/2;
 		*p++ = col_g; *p++ = col_g; p+=2; *p++ = col_r; *p++ = col_r;
 	}
 }
 
 static void draw_pico_ptr(void)
 {
-	unsigned short *p = (unsigned short *)gp2x_screen;
+	unsigned short *p = (unsigned short *)g_screen_ptr;
 
 	// only if pen enabled and for 16bit modes
 	if (pico_inp_mode == 0 || (PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80)) return;
@@ -250,7 +173,7 @@ static void draw_pico_ptr(void)
 	if (!(Pico.video.reg[12]&1) && !(PicoOpt&POPT_DIS_32C_BORDER))
 		p += 32;
 
-	p += SCREEN_WIDTH * (pico_pen_y + PICO_PEN_ADJUST_Y);
+	p += g_screen_width * (pico_pen_y + PICO_PEN_ADJUST_Y);
 	p += pico_pen_x + PICO_PEN_ADJUST_X;
 	p[0]   ^= 0xffff;
 	p[319] ^= 0xffff;
@@ -263,10 +186,9 @@ static void draw_pico_ptr(void)
 
 static int EmuScanBegin16(unsigned int num)
 {
-	if (!(Pico.video.reg[1]&8)) num += 8;
-	DrawLineDest = (unsigned short *)gp2x_screen + num*800 + 800/2 - 320/2;
+	DrawLineDest = (unsigned short *)g_screen_ptr + num*800 + 800/2 - 320/2;
 	//int w = (Pico.video.reg[12]&1) ? 320 : 256;
-	//DrawLineDest = (unsigned short *)gp2x_screen + num*w;
+	//DrawLineDest = (unsigned short *)g_screen_ptr + num*w;
 
 	return 0;
 }
@@ -281,8 +203,7 @@ static int EmuScanEnd16(unsigned int num)
 	int sh = Pico.video.reg[0xC]&8;
 	int len, mask = 0xff;
 
-	if (!(Pico.video.reg[1]&8)) num += 8;
-	pd=(unsigned short *)gp2x_screen + num*800*2 + 800/2 - 320*2/2;
+	pd=(unsigned short *)g_screen_ptr + num*800*2 + 800/2 - 320*2/2;
 
 	if (Pico.m.dirtyPal)
 		PicoDoHighPal555(sh);
@@ -294,8 +215,8 @@ static int EmuScanEnd16(unsigned int num)
 		len = 256;
 	}
 
-	if (!sh && (rendstatus & PDRAW_ACC_SPRITES))
-		mask=0x3f; // accurate sprites, upper bits are priority stuff
+	if (!sh && (rendstatus & PDRAW_SPR_LO_ON_HI))
+		mask=0x3f; // messed sprites, upper bits are priority stuff
 
 #if 1
 	clut_line(pd, ps, pal, (mask<<16) | len);
@@ -315,14 +236,6 @@ static int EmuScanEnd16(unsigned int num)
 
 #endif // USE_320_SCREEN
 
-static int EmuScanBegin8(unsigned int num)
-{
-	if (!(Pico.video.reg[1]&8)) num += 8;
-	DrawLineDest = (unsigned char *)  gp2x_screen + SCREEN_WIDTH * num;
-
-	return 0;
-}
-
 int localPal[0x100];
 static void (*vidCpyM2)(void *dest, void *src) = NULL;
 
@@ -337,20 +250,20 @@ static void blit(const char *fps, const char *notice)
 			Pico.m.dirtyPal = 0;
 			vidConvCpyRGB32(localPal, Pico.cram, 0x40);
 			// feed new palette to our device
-			gp2x_video_setpalette(localPal, 0x40);
+			// gp2x_video_setpalette(localPal, 0x40);
 		}
 		// a hack for VR
 		if (PicoRead16Hook == PicoSVPRead16)
 			memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
 		// do actual copy
-		vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);
+		vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);
 	}
 	else if (!(emu_opt&0x80))
 	{
 		// 8bit accurate renderer
 		if (Pico.m.dirtyPal)
 		{
-			int pallen = 0x40;
+			int pallen = 0xc0;
 			Pico.m.dirtyPal = 0;
 			if (Pico.video.reg[0xC]&8) // shadow/hilight mode
 			{
@@ -360,13 +273,6 @@ static void blit(const char *fps, const char *notice)
 				memcpy32(localPal+0xc0, localPal+0x40, 0x40);
 				pallen = 0x100;
 			}
-			else if (rendstatus & PDRAW_ACC_SPRITES) {
-				vidConvCpyRGB32(localPal, Pico.cram, 0x40);
-				memcpy32(localPal+0x40, localPal, 0x40);
-				memcpy32(localPal+0x80, localPal, 0x40);
-				memcpy32(localPal+0xc0, localPal, 0x40);
-				pallen = 0x100;
-			}
 			else if (rendstatus & PDRAW_SONIC_MODE) { // mid-frame palette changes
 				vidConvCpyRGB32(localPal, Pico.cram, 0x40);
 				vidConvCpyRGB32(localPal+0x40, HighPal, 0x40);
@@ -375,6 +281,7 @@ static void blit(const char *fps, const char *notice)
 			}
 			else {
 				vidConvCpyRGB32(localPal, Pico.cram, 0x40);
+				memcpy32(localPal+0x80, localPal, 0x40);
 			}
 			if (pallen > 0xc0) {
 				localPal[0xc0] = 0x0000c000;
@@ -382,12 +289,12 @@ static void blit(const char *fps, const char *notice)
 				localPal[0xe0] = 0x00000000; // reserved pixels for OSD
 				localPal[0xf0] = 0x00ffffff;
 			}
-			gp2x_video_setpalette(localPal, pallen);
+			// gp2x_video_setpalette(localPal, pallen);
 		}
 	}
 
 	if (notice || (emu_opt & 2)) {
-		int h = SCREEN_HEIGHT-16;
+		int h = g_screen_height-16;
 		if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8)) h -= 16;
 		if (notice) osd_text(4, h, notice);
 		if (emu_opt & 2)
@@ -397,33 +304,24 @@ static void blit(const char *fps, const char *notice)
 		draw_cd_leds();
 	if (PicoAHW & PAHW_PICO)
 		draw_pico_ptr();
-{
-//static int u=0;
-//memset((char *)gp2x_screen+800*471*2, (u++)>>1, 800*9*2);
-}
 
 	//gp2x_video_wait_vsync();
-	gp2x_video_flip();
+	// gp2x_video_flip();
 }
 
 
 // clears whole screen or just the notice area (in all buffers)
 static void clearArea(int full)
 {
-	if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
-		// 8-bit renderers
-		if (full) gp2x_memset_all_buffers(0, 0xe0, SCREEN_WIDTH*240);
-		else      gp2x_memset_all_buffers(SCREEN_WIDTH*232, 0xe0, SCREEN_WIDTH*8);
-	} else {
-		// 16bit accurate renderer
-		if (full) gp2x_memset_all_buffers(0, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);
-		else      gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);
-	}
+	if (full) memset(g_screen_ptr, 0, g_screen_width*g_screen_height*2);
+	else      memset((short *)g_screen_ptr + g_screen_width * (g_screen_height - 16), 0,
+			g_screen_width * 16 * 2);
 }
 
 
 static void vidResetMode(void)
 {
+#if 0
 	if (PicoOpt&0x10) {
 		gp2x_video_changemode(8);
 	} else if (currentConfig.EmuOpt&0x80) {
@@ -455,95 +353,18 @@ static void vidResetMode(void)
 	if (currentConfig.scaling == 2 && !(Pico.video.reg[1]&8))
 	     gp2x_video_RGB_setscaling(8, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 224);
 	else gp2x_video_RGB_setscaling(0, (PicoOpt&0x100)&&!(Pico.video.reg[12]&1) ? 256 : 320, 240);
+#else
+#ifdef USE_320_SCREEN
+	PicoDrawSetColorFormat(1);
+	PicoScanBegin = EmuScanBegin16;
+#else
+	PicoDrawSetColorFormat(-1);
+	PicoScanEnd = EmuScanEnd16;
+#endif
+#endif
 }
 
 
-static void emu_msg_cb(const char *msg)
-{
-	if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
-		// 8-bit renderers
-		gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16), 0xe0, SCREEN_WIDTH*16);
-		osd_text(4, SCREEN_HEIGHT-16, msg);
-		gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16),
-			SCREEN_WIDTH*(SCREEN_HEIGHT-16), SCREEN_WIDTH*16);
-	} else {
-		// 16bit accurate renderer
-		gp2x_memset_all_buffers(SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, 0, SCREEN_WIDTH*16*2);
-		osd_text(4, SCREEN_HEIGHT-16, msg);
-		gp2x_memcpy_all_buffers((char *)gp2x_screen+SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2,
-			SCREEN_WIDTH*(SCREEN_HEIGHT-16)*2, SCREEN_WIDTH*16*2);
-	}
-	gettimeofday(&noticeMsgTime, 0);
-	noticeMsgTime.tv_sec -= 2;
-
-	/* assumption: emu_msg_cb gets called only when something slow is about to happen */
-	reset_timing = 1;
-}
-
-static void emu_state_cb(const char *str)
-{
-	clearArea(0);
-	blit("", str);
-}
-
-static void emu_msg_tray_open(void)
-{
-	strcpy(noticeMsg, "CD tray opened");
-	gettimeofday(&noticeMsgTime, 0);
-}
-
-static void RunEventsPico(unsigned int events, unsigned int gp2x_keys)
-{
-	int ret, px, py, lim_x;
-	static int pdown_frames = 0;
-
-	emu_RunEventsPico(events);
-
-	if (pico_inp_mode == 0) return;
-
-	// for F200
-	ret = gp2x_touchpad_read(&px, &py);
-	if (ret >= 0)
-	{
-		if (ret > 35000)
-		{
-			if (pdown_frames++ > 5)
-				PicoPad[0] |= 0x20;
-
-			pico_pen_x = px;
-			pico_pen_y = py;
-			if (!(Pico.video.reg[12]&1)) {
-				pico_pen_x -= 32;
-				if (pico_pen_x <   0) pico_pen_x = 0;
-				if (pico_pen_x > 248) pico_pen_x = 248;
-			}
-			if (pico_pen_y > 224) pico_pen_y = 224;
-		}
-		else
-			pdown_frames = 0;
-
-		//if (ret == 0)
-		//	PicoPicohw.pen_pos[0] = PicoPicohw.pen_pos[1] = 0x8000;
-	}
-
-	PicoPad[0] &= ~0x0f; // release UDLR
-	if (gp2x_keys & GP2X_UP)    pico_pen_y--;
-	if (gp2x_keys & GP2X_DOWN)  pico_pen_y++;
-	if (gp2x_keys & GP2X_LEFT)  pico_pen_x--;
-	if (gp2x_keys & GP2X_RIGHT) pico_pen_x++;
-
-	lim_x = (Pico.video.reg[12]&1) ? 319 : 255;
-	if (pico_pen_y < 8) pico_pen_y = 8;
-	if (pico_pen_y > 224-PICO_PEN_ADJUST_Y) pico_pen_y = 224-PICO_PEN_ADJUST_Y;
-	if (pico_pen_x < 0) pico_pen_x = 0;
-	if (pico_pen_x > lim_x-PICO_PEN_ADJUST_X) pico_pen_x = lim_x-PICO_PEN_ADJUST_X;
-
-	PicoPicohw.pen_pos[0] = pico_pen_x;
-	if (!(Pico.video.reg[12]&1)) PicoPicohw.pen_pos[0] += pico_pen_x/4;
-	PicoPicohw.pen_pos[0] += 0x3c;
-	PicoPicohw.pen_pos[1] = pico_inp_mode == 1 ? (0x2f8 + pico_pen_y) : (0x1fc + pico_pen_y);
-}
-
 static void update_volume(int has_changed, int is_up)
 {
 	static int prev_frame = 0, wait_frames = 0;
@@ -560,7 +381,7 @@ static void update_volume(int has_changed, int is_up)
 				if (vol >  0) vol--;
 			}
 			wait_frames = 0;
-			gp2x_sound_volume(vol, vol);
+			sndout_oss_setvol(vol, vol);
 			currentConfig.volume = vol;
 		}
 		sprintf(noticeMsg, "VOL: %02i", vol);
@@ -578,156 +399,6 @@ static void update_volume(int has_changed, int is_up)
 	}
 }
 
-static void RunEvents(unsigned int which)
-{
-	if (which & 0x1800) // save or load (but not both)
-	{
-		int do_it = 1;
-		if ( emu_checkSaveFile(state_slot) &&
-				(( (which & 0x1000) && (currentConfig.EmuOpt & 0x800)) ||   // load
-				 (!(which & 0x1000) && (currentConfig.EmuOpt & 0x200))) ) { // save
-			unsigned long keys;
-			blit("", (which & 0x1000) ? "LOAD STATE? (Y=yes, X=no)" : "OVERWRITE SAVE? (Y=yes, X=no)");
-			while ( !((keys = gp2x_joystick_read(1)) & (GP2X_X|GP2X_Y)) )
-				usleep(50*1024);
-			if (keys & GP2X_X) do_it = 0;
-			while ( gp2x_joystick_read(1) & (GP2X_X|GP2X_Y) ) // wait for release
-				usleep(50*1024);
-			clearArea(0);
-		}
-		if (do_it) {
-			osd_text(4, SCREEN_HEIGHT-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
-			PicoStateProgressCB = emu_state_cb;
-			gp2x_memcpy_all_buffers(gp2x_screen, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2);
-			emu_SaveLoadGame((which & 0x1000) >> 12, 0);
-			PicoStateProgressCB = NULL;
-		}
-
-		reset_timing = 1;
-	}
-	if (which & 0x0400) // switch renderer
-	{
-		if      (  PicoOpt&0x10)             { PicoOpt&=~0x10; currentConfig.EmuOpt |= 0x80; }
-		else if (!(currentConfig.EmuOpt&0x80)) PicoOpt|= 0x10;
-		else   currentConfig.EmuOpt &= ~0x80;
-
-		vidResetMode();
-
-		if (PicoOpt&0x10) {
-			strcpy(noticeMsg, " 8bit fast renderer");
-		} else if (currentConfig.EmuOpt&0x80) {
-			strcpy(noticeMsg, "16bit accurate renderer");
-		} else {
-			strcpy(noticeMsg, " 8bit accurate renderer");
-		}
-
-		gettimeofday(&noticeMsgTime, 0);
-	}
-	if (which & 0x0300)
-	{
-		if(which&0x0200) {
-			state_slot -= 1;
-			if(state_slot < 0) state_slot = 9;
-		} else {
-			state_slot += 1;
-			if(state_slot > 9) state_slot = 0;
-		}
-		sprintf(noticeMsg, "SAVE SLOT %i [%s]", state_slot, emu_checkSaveFile(state_slot) ? "USED" : "FREE");
-		gettimeofday(&noticeMsgTime, 0);
-	}
-	if (which & 0x0080) {
-		engineState = PGS_Menu;
-	}
-}
-
-static void updateKeys(void)
-{
-	unsigned int keys, keys2, allActions[2] = { 0, 0 }, events;
-	static unsigned int prevEvents = 0;
-	int joy, i;
-
-	keys = gp2x_joystick_read(0);
-	if (keys & GP2X_SELECT) {
-		engineState = select_exits ? PGS_Quit : PGS_Menu;
-		// wait until select is released, so menu would not resume game
-		while (gp2x_joystick_read(1) & GP2X_SELECT) usleep(50*1000);
-	}
-
-	keys &= CONFIGURABLE_KEYS;
-	keys2 = keys;
-
-	for (i = 0; i < 32; i++)
-	{
-		if (keys2 & (1 << i))
-		{
-			int pl, acts = currentConfig.KeyBinds[i];
-			if (!acts) continue;
-			pl = (acts >> 16) & 1;
-			if (kb_combo_keys & (1 << i))
-			{
-				int u = i+1, acts_c = acts & kb_combo_acts;
-				// let's try to find the other one
-				if (acts_c) {
-					for (; u < 32; u++)
-						if ( (keys2 & (1 << u)) && (currentConfig.KeyBinds[u] & acts_c) ) {
-							allActions[pl] |= acts_c & currentConfig.KeyBinds[u];
-							keys2 &= ~((1 << i) | (1 << u));
-							break;
-						}
-				}
-				// add non-combo actions if combo ones were not found
-				if (!acts_c || u == 32)
-					allActions[pl] |= acts & ~kb_combo_acts;
-			} else {
-				allActions[pl] |= acts;
-			}
-		}
-	}
-
-	// add joy inputs
-	if (num_of_joys > 0)
-	{
-		gp2x_usbjoy_update();
-		for (joy = 0; joy < num_of_joys; joy++) {
-			int btns = gp2x_usbjoy_check2(joy);
-			for (i = 0; i < 32; i++) {
-				if (btns & (1 << i)) {
-					int acts = currentConfig.JoyBinds[joy][i];
-					int pl = (acts >> 16) & 1;
-					allActions[pl] |= acts;
-				}
-			}
-		}
-	}
-
-	PicoPad[0] = allActions[0] & 0xfff;
-	PicoPad[1] = allActions[1] & 0xfff;
-
-	if (allActions[0] & 0x7000) emu_DoTurbo(&PicoPad[0], allActions[0]);
-	if (allActions[1] & 0x7000) emu_DoTurbo(&PicoPad[1], allActions[1]);
-
-	events = (allActions[0] | allActions[1]) >> 16;
-
-	// volume is treated in special way and triggered every frame
-	if (events & 0x6000)
-		update_volume(1, events & 0x2000);
-
-	if ((events ^ prevEvents) & 0x40) {
-		emu_changeFastForward(events & 0x40);
-		update_volume(0, 0);
-		reset_timing = 1;
-	}
-
-	events &= ~prevEvents;
-
-	if (PicoAHW == PAHW_PICO)
-		RunEventsPico(events, keys);
-	if (events) RunEvents(events);
-	if (movie_data) emu_updateMovie();
-
-	prevEvents = (allActions[0] | allActions[1]) >> 16;
-}
-
 
 static void updateSound(int len)
 {
@@ -735,7 +406,7 @@ static void updateSound(int len)
 
 	/* avoid writing audio when lagging behind to prevent audio lag */
 	if (PicoSkipFrame != 2)
-		gp2x_sound_write(PsndOut, len<<1);
+		sndout_oss_write(PsndOut, len<<1);
 }
 
 
@@ -747,7 +418,7 @@ static void SkipFrame(int do_audio)
 }
 
 
-void emu_forcedFrame(int opts)
+void pemu_forced_frame(int opts)
 {
 	int po_old = PicoOpt;
 	int eo_old = currentConfig.EmuOpt;
@@ -773,7 +444,7 @@ void emu_forcedFrame(int opts)
 		clearArea(1);
 	} else	vidCpyM2 = vidCpyM2_40col;
 
-	vidCpyM2((unsigned char *)gp2x_screen+SCREEN_WIDTH*8, PicoDraw2FB+328*8);
+	vidCpyM2((unsigned char *)g_screen_ptr+g_screen_width*8, PicoDraw2FB+328*8);
 	vidConvCpyRGB32(localPal, Pico.cram, 0x40);
 	gp2x_video_setpalette(localPal, 0x40);
 */
@@ -781,6 +452,10 @@ void emu_forcedFrame(int opts)
 	currentConfig.EmuOpt = eo_old;
 }
 
+void plat_debug_cat(char *str)
+{
+}
+
 static void simpleWait(int thissec, int lim_time)
 {
 	struct timeval tval;
@@ -797,10 +472,45 @@ static void simpleWait(int thissec, int lim_time)
 	}
 }
 
-
-void emu_Loop(void)
+void pemu_sound_start(void)
 {
 	static int PsndRate_old = 0, PicoOpt_old = 0, pal_old = 0;
+	int target_fps = Pico.m.pal ? 50 : 60;
+
+	PsndOut = NULL;
+
+	if (currentConfig.EmuOpt & 4)
+	{
+		int snd_excess_add;
+		if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)
+			PsndRerate(Pico.m.frame_count ? 1 : 0);
+
+		snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
+		printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
+			PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
+		sndout_oss_start(PsndRate, 16, (PicoOpt&8)>>3);
+		sndout_oss_setvol(currentConfig.volume, currentConfig.volume);
+		PicoWriteSound = updateSound;
+		update_volume(0, 0);
+		memset(sndBuffer, 0, sizeof(sndBuffer));
+		PsndOut = sndBuffer;
+		PsndRate_old = PsndRate;
+		PicoOpt_old  = PicoOpt;
+		pal_old = Pico.m.pal;
+	}
+}
+
+void pemu_sound_stop(void)
+{
+}
+
+void pemu_sound_wait(void)
+{
+	// don't need to do anything, writes will block by themselves
+}
+
+void pemu_loop(void)
+{
 	char fpsbuff[24]; // fps count c string
 	struct timeval tval; // timing
 	int pframes_done, pframes_shown, pthissec; // "period" frames, used for sync
@@ -814,38 +524,15 @@ void emu_Loop(void)
 
 	// make sure we are in correct mode
 	vidResetMode();
-	scaling_update();
 	Pico.m.dirtyPal = 1;
 	oldmodes = ((Pico.video.reg[12]&1)<<2) ^ 0xc;
-	emu_findKeyBindCombos();
 
 	// pal/ntsc might have changed, reset related stuff
 	target_fps = Pico.m.pal ? 50 : 60;
 	target_frametime = 1000000/target_fps;
 	reset_timing = 1;
 
-	// prepare sound stuff
-	if (currentConfig.EmuOpt & 4)
-	{
-		int snd_excess_add;
-		if (PsndRate != PsndRate_old || (PicoOpt&0x20b) != (PicoOpt_old&0x20b) || Pico.m.pal != pal_old)
-			PsndRerate(Pico.m.frame_count ? 1 : 0);
-
-		snd_excess_add = ((PsndRate - PsndLen*target_fps)<<16) / target_fps;
-		printf("starting audio: %i len: %i (ex: %04x) stereo: %i, pal: %i\n",
-			PsndRate, PsndLen, snd_excess_add, (PicoOpt&8)>>3, Pico.m.pal);
-		gp2x_start_sound(PsndRate, 16, (PicoOpt&8)>>3);
-		gp2x_sound_volume(currentConfig.volume, currentConfig.volume);
-		PicoWriteSound = updateSound;
-		update_volume(0, 0);
-		memset(sndBuffer, 0, sizeof(sndBuffer));
-		PsndOut = sndBuffer;
-		PsndRate_old = PsndRate;
-		PicoOpt_old  = PicoOpt;
-		pal_old = Pico.m.pal;
-	} else {
-		PsndOut = NULL;
-	}
+	pemu_sound_start();
 
 	// prepare CD buffer
 	if (PicoAHW & PAHW_MCD) PicoCDBufferInit();
@@ -853,7 +540,7 @@ void emu_Loop(void)
 	// calc vsync offset to sync timing code with vsync
 	if (currentConfig.EmuOpt&0x2000) {
 		gettimeofday(&tval, 0);
-		gp2x_video_wait_vsync();
+		//gp2x_video_wait_vsync();
 		gettimeofday(&tval, 0);
 		vsync_offset = tval.tv_usec;
 		while (vsync_offset >= target_frametime)
@@ -897,7 +584,7 @@ void emu_Loop(void)
 		modes = ((Pico.video.reg[12]&1)<<2)|(Pico.video.reg[1]&8);
 		if (modes != oldmodes)
 		{
-			int scalex = SCREEN_WIDTH;
+			int scalex = g_screen_width;
 			osd_fps_x = OSD_FPS_X;
 			if (modes & 4) {
 				vidCpyM2 = vidCpyM2_40col;
@@ -910,9 +597,9 @@ void emu_Loop(void)
 					vidCpyM2 = vidCpyM2_32col;
 				}
 			}
-			if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode
-			     gp2x_video_RGB_setscaling(8, scalex, 224);
-			else gp2x_video_RGB_setscaling(0, scalex, 240);
+			//if (currentConfig.scaling == 2 && !(modes&8)) // want vertical scaling and game is not in 240 line mode
+			//      gp2x_video_RGB_setscaling(8, scalex, 224);
+			// else gp2x_video_RGB_setscaling(0, scalex, 240);
 			oldmodes = modes;
 			clearArea(1);
 		}
@@ -952,7 +639,7 @@ void emu_Loop(void)
 				// it is quite common for this implementation to leave 1 fame unfinished
 				// when second changes, but we don't want buffer to starve.
 				if(PsndOut && pframes_done < target_fps && pframes_done > target_fps-5) {
-					updateKeys();
+					emu_update_input();
 					SkipFrame(1); pframes_done++;
 				}
 
@@ -967,7 +654,7 @@ void emu_Loop(void)
 		if (currentConfig.Frameskip >= 0) // frameskip enabled
 		{
 			for(i = 0; i < currentConfig.Frameskip; i++) {
-				updateKeys();
+				emu_update_input();
 				SkipFrame(1); pframes_done++; frames_done++;
 				if (PsndOut && !reset_timing) { // do framelimitting if sound is enabled
 					gettimeofday(&tval, 0);
@@ -988,12 +675,12 @@ void emu_Loop(void)
 				reset_timing = 1;
 				continue;
 			}
-			updateKeys();
+			emu_update_input();
 			SkipFrame(tval.tv_usec < lim_time+target_frametime*2); pframes_done++; frames_done++;
 			continue;
 		}
 
-		updateKeys();
+		emu_update_input();
 		PicoFrame();
 
 		// check time
@@ -1002,7 +689,8 @@ void emu_Loop(void)
 
 		if (currentConfig.Frameskip < 0 && tval.tv_usec - lim_time >= 300000) // slowdown detection
 			reset_timing = 1;
-/*		else if (PsndOut != NULL || currentConfig.Frameskip < 0)
+#if 1
+		else if (PsndOut != NULL || currentConfig.Frameskip < 0)
 		{
 			// sleep or vsync if we are still too fast
 			// usleep sleeps for ~20ms minimum, so it is not a solution here
@@ -1012,39 +700,33 @@ void emu_Loop(void)
 				if (vsync_offset) {
 					if (lim_time - tval.tv_usec > target_frametime/2)
 						simpleWait(pthissec, lim_time - target_frametime/4);
-					gp2x_video_wait_vsync();
+					// gp2x_video_wait_vsync();
 				} else {
 					simpleWait(pthissec, lim_time);
 				}
 			}
 		}
-*/
+#endif
 		blit(fpsbuff, notice);
 
 		pframes_done++; pframes_shown++;
 		 frames_done++;  frames_shown++;
 	}
 
-	emu_changeFastForward(0);
+	emu_set_fastforward(0);
 
 	if (PicoAHW & PAHW_MCD) PicoCDBufferFree();
 
 	// save SRAM
-	if((currentConfig.EmuOpt & 1) && SRam.changed) {
+	if ((currentConfig.EmuOpt & EOPT_EN_SRAM) && SRam.changed) {
+		/* FIXME: plat_status_msg_busy_first */
 		emu_state_cb("Writing SRAM/BRAM..");
-		emu_SaveLoadGame(0, 1);
+		emu_save_load_game(0, 1);
 		SRam.changed = 0;
 	}
 
 	// if in 8bit mode, generate 16bit image for menu background
 	if ((PicoOpt&0x10) || !(currentConfig.EmuOpt&0x80))
-		emu_forcedFrame(POPT_EN_SOFTSCALE);
-}
-
-
-void emu_ResetGame(void)
-{
-	PicoReset();
-	reset_timing = 1;
+		pemu_forced_frame(POPT_EN_SOFTSCALE);
 }