From e31266dd116b6bea59ce3f2036feeb6725c45a72 Mon Sep 17 00:00:00 2001
From: notaz <notasas@gmail.com>
Date: Wed, 4 Mar 2009 22:07:13 +0000
Subject: [PATCH] screen ptr/size unification, major cleanups

git-svn-id: file:///home/notaz/opt/svn/PicoDrive/platform@644 be3aeb3a-fb24-0410-a615-afba39da0efa
---
 common/common.h       | 148 ++----------------------------------------
 common/emu.c          |  80 ++++++++++-------------
 common/emu.h          |  11 ++++
 common/menu.c         | 144 ++++++++++++++++++++--------------------
 gp2x/940ctl.c         |   2 +-
 gp2x/emu.c            |  80 +++++++++--------------
 gp2x/gp2x.c           |  28 ++------
 gp2x/gp2x.h           |   1 -
 gp2x/plat.c           |  11 ++--
 gp2x/port_config.h    |   4 ++
 linux/Makefile        |   2 +-
 linux/gp2x.c          |  80 +++++++++++------------
 linux/port_config.h   |   4 ++
 pandora/emu.c         |  71 ++++++++++----------
 pandora/port_config.h |   4 ++
 psp/port_config.h     |   4 ++
 16 files changed, 259 insertions(+), 415 deletions(-)

diff --git a/common/common.h b/common/common.h
index 8904ecd..c84583a 100644
--- a/common/common.h
+++ b/common/common.h
@@ -1,155 +1,17 @@
-// platform specific things for common menu code
+/* random common definitions */
 
-/* TODO: get rid of this file */
-
-#ifdef __GP2X__
-#include "../gp2x/gp2x.h"
-
-// TODO merge
 #define PBTN_UP    (1 <<  0)
 #define PBTN_DOWN  (1 <<  1)
 #define PBTN_LEFT  (1 <<  2)
 #define PBTN_RIGHT (1 <<  3)
 
-#define PBTN_NORTH (1 <<  4)
-#define PBTN_SOUTH (1 <<  5)
-#define PBTN_WEST  (1 <<  6)
-#define PBTN_EAST  (1 <<  7)
-#define PBTN_L     (1 <<  8)
-#define PBTN_R     (1 <<  9)
-
-/* menu nav */
-#define PBTN_MOK   PBTN_EAST
-#define PBTN_MBACK PBTN_SOUTH
-#define PBTN_MENU  (1 << 10)
-
-#if 0
-#define PBTN_UP    GP2X_UP
-#define PBTN_DOWN  GP2X_DOWN
-#define PBTN_LEFT  GP2X_LEFT
-#define PBTN_RIGHT GP2X_RIGHT
-
-#define PBTN_NORTH GP2X_Y
-#define PBTN_SOUTH GP2X_X
-#define PBTN_WEST  GP2X_A
-#define PBTN_EAST  GP2X_B
-#define PBTN_L     GP2X_L
-#define PBTN_R     GP2X_R
-
-/* menu nav */
-#define PBTN_MOK   GP2X_B
-#define PBTN_MBACK GP2X_X
-#define PBTN_MENU  GP2X_SELECT
-#endif
-#define GP2X_Y 0 /* FIXME */
-
-void gp2x_pd_clone_buffer2(void);
-void menu_darken_bg(void *dst, int pixels, int darker);
-void menu_flip(void);
-
-#define SCREEN_WIDTH  320
-#define SCREEN_HEIGHT 240
-#define SCREEN_BUFFER gp2x_screen
-
-#define menu_draw_begin() \
-	gp2x_pd_clone_buffer2()
-#define clear_screen() \
-	memset(gp2x_screen, 0, 320*240*2)
-#define darken_screen() \
-	menu_darken_bg(gp2x_screen, 320*240, 0)
-#define menu_draw_end() \
-	menu_flip()
-
-// ------------------------------------
-
-#elif defined(__GIZ__)
-
-#include "../gizmondo/giz.h"
-
-#define PBTN_NORTH PBTN_STOP
-#define PBTN_SOUTH PBTN_PLAY
-#define PBTN_WEST  PBTN_REW
-#define PBTN_EAST  PBTN_FWD
-
-void menu_draw_begin(int use_bgbuff);
-void menu_darken_bg(void *dst, const void *src, int pixels, int darker);
-void menu_draw_end(void);
-
-#define SCREEN_WIDTH  321
-#define SCREEN_HEIGHT 240
-#define SCREEN_BUFFER ((giz_screen != NULL) ? giz_screen : menu_screen)
-extern void *menu_screen;
-extern void *giz_screen;
-
-#define menu_draw_begin() \
-	menu_draw_begin(1)
-#define clear_screen() \
-	memset(SCREEN_BUFFER, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2)
-#define darken_screen() \
-	menu_darken_bg(menu_screen, menu_screen, SCREEN_WIDTH*SCREEN_HEIGHT, 0)
+#define PBTN_MOK   (1 <<  4)
+#define PBTN_MBACK (1 <<  5)
+#define PBTN_MA2   (1 <<  6)	/* menu action 2 */
+#define PBTN_MA3   (1 <<  7)
 
-// ------------------------------------
-
-#elif defined(PSP)
-
-#include "../psp/psp.h"
-
-#define PBTN_NORTH PBTN_TRIANGLE
-#define PBTN_SOUTH PBTN_X
-#define PBTN_WEST  PBTN_SQUARE
-#define PBTN_EAST  PBTN_CIRCLE
-
-void menu_draw_begin(void);
-void menu_darken_bg(void *dst, const void *src, int pixels, int darker);
-void menu_draw_end(void);
-
-#define SCREEN_WIDTH  512
-#define SCREEN_HEIGHT 272
-#define SCREEN_BUFFER psp_screen
-
-#define clear_screen() \
-	memset(SCREEN_BUFFER, 0, SCREEN_WIDTH*SCREEN_HEIGHT*2)
-#define darken_screen() \
-	menu_darken_bg(psp_screen, psp_screen, SCREEN_WIDTH*SCREEN_HEIGHT, 0)
-
-// ------------------------------------
-
-#elif defined(PANDORA)
-
-#define PBTN_UP    (1 <<  0)
-#define PBTN_DOWN  (1 <<  1)
-#define PBTN_LEFT  (1 <<  2)
-#define PBTN_RIGHT (1 <<  3)
-
-#define PBTN_NORTH (1 <<  4)
-#define PBTN_SOUTH (1 <<  5)
-#define PBTN_WEST  (1 <<  6)
-#define PBTN_EAST  (1 <<  7)
 #define PBTN_L     (1 <<  8)
 #define PBTN_R     (1 <<  9)
 
-/* menu nav */
-#define PBTN_MOK   PBTN_EAST
-#define PBTN_MBACK PBTN_SOUTH
 #define PBTN_MENU  (1 << 10)
 
-void gp2x_pd_clone_buffer2(void);
-void menu_darken_bg(void *dst, int pixels, int darker);
-void menu_flip(void);
-
-extern void *gp2x_screen;
-
-#define SCREEN_WIDTH  800
-#define SCREEN_HEIGHT 480
-#define SCREEN_BUFFER gp2x_screen
-
-#define menu_draw_begin() \
-	gp2x_pd_clone_buffer2()
-#define clear_screen() \
-	memset(gp2x_screen, 0, 800*480*2)
-#define darken_screen() \
-	menu_darken_bg(gp2x_screen, 800*480, 0)
-#define menu_draw_end() \
-	menu_flip()
-
-#endif
diff --git a/common/emu.c b/common/emu.c
index 7aac10b..f8b4e65 100644
--- a/common/emu.c
+++ b/common/emu.c
@@ -24,6 +24,13 @@
 #include <zlib/zlib.h>
 
 
+void *g_screen_ptr;
+
+#if !SCREEN_SIZE_FIXED
+int g_screen_width  = SCREEN_WIDTH;
+int g_screen_height = SCREEN_HEIGHT;
+#endif
+
 char *PicoConfigFile = "config.cfg";
 currentConfig_t currentConfig, defaultConfig;
 char noticeMsg[64] = { 0, };
@@ -679,54 +686,36 @@ void emu_writelrom(void)
 #endif
 }
 
-#ifndef UIQ3
-void emu_textOut8(int x, int y, const char *text)
-{
-	int i,l,len=strlen(text);
-	unsigned char *screen = (unsigned char *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;
-
-	/* always using built-in font */
-	for (i = 0; i < len; i++)
-	{
-		for (l=0;l<8;l++)
-		{
-			unsigned char fd = fontdata8x8[((text[i])*8)+l];
-			if (fd&0x80) screen[l*SCREEN_WIDTH+0]=0xf0;
-			if (fd&0x40) screen[l*SCREEN_WIDTH+1]=0xf0;
-			if (fd&0x20) screen[l*SCREEN_WIDTH+2]=0xf0;
-			if (fd&0x10) screen[l*SCREEN_WIDTH+3]=0xf0;
-			if (fd&0x08) screen[l*SCREEN_WIDTH+4]=0xf0;
-			if (fd&0x04) screen[l*SCREEN_WIDTH+5]=0xf0;
-			if (fd&0x02) screen[l*SCREEN_WIDTH+6]=0xf0;
-			if (fd&0x01) screen[l*SCREEN_WIDTH+7]=0xf0;
-		}
-		screen += 8;
-	}
+/* always using built-in font */
+
+#define mk_text_out(name, type, val) \
+void name(int x, int y, const char *text)				\
+{									\
+	int i, l, len = strlen(text);					\
+	type *screen = (type *)g_screen_ptr + x + y * g_screen_width;	\
+									\
+	for (i = 0; i < len; i++, screen += 8)				\
+	{								\
+		for (l = 0; l < 8; l++)					\
+		{							\
+			unsigned char fd = fontdata8x8[text[i] * 8 + l];\
+			type *s = screen + l * g_screen_width;		\
+			if (fd&0x80) s[0] = val;			\
+			if (fd&0x40) s[1] = val;			\
+			if (fd&0x20) s[2] = val;			\
+			if (fd&0x10) s[3] = val;			\
+			if (fd&0x08) s[4] = val;			\
+			if (fd&0x04) s[5] = val;			\
+			if (fd&0x02) s[6] = val;			\
+			if (fd&0x01) s[7] = val;			\
+		}							\
+	}								\
 }
 
-void emu_textOut16(int x, int y, const char *text)
-{
-	int i,l,len=strlen(text);
-	unsigned short *screen = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;
+mk_text_out(emu_textOut8, unsigned char, 0xf0)
+mk_text_out(emu_textOut16, unsigned short, 0xffff)
 
-	for (i = 0; i < len; i++)
-	{
-		for (l=0;l<8;l++)
-		{
-			unsigned char fd = fontdata8x8[((text[i])*8)+l];
-			if(fd&0x80) screen[l*SCREEN_WIDTH+0]=0xffff;
-			if(fd&0x40) screen[l*SCREEN_WIDTH+1]=0xffff;
-			if(fd&0x20) screen[l*SCREEN_WIDTH+2]=0xffff;
-			if(fd&0x10) screen[l*SCREEN_WIDTH+3]=0xffff;
-			if(fd&0x08) screen[l*SCREEN_WIDTH+4]=0xffff;
-			if(fd&0x04) screen[l*SCREEN_WIDTH+5]=0xffff;
-			if(fd&0x02) screen[l*SCREEN_WIDTH+6]=0xffff;
-			if(fd&0x01) screen[l*SCREEN_WIDTH+7]=0xffff;
-		}
-		screen += 8;
-	}
-}
-#endif
+#undef mk_text_out
 
 #ifdef PSP
 #define MAX_COMBO_KEY 23
@@ -734,6 +723,7 @@ void emu_textOut16(int x, int y, const char *text)
 #define MAX_COMBO_KEY 31
 #endif
 
+// FIXME
 void emu_findKeyBindCombos(void)
 {
 	int act, u;
diff --git a/common/emu.h b/common/emu.h
index 516c77f..91921c9 100644
--- a/common/emu.h
+++ b/common/emu.h
@@ -9,6 +9,17 @@
 extern "C" {
 #endif
 
+extern void *g_screen_ptr;
+
+#if SCREEN_SIZE_FIXED
+#define g_screen_width  SCREEN_WIDTH
+#define g_screen_height SCREEN_HEIGHT
+#else
+extern int g_screen_width;
+extern int g_screen_height;
+#endif
+
+
 #define EOPT_USE_SRAM     (1<<0)
 #define EOPT_SHOW_FPS     (1<<1)
 #define EOPT_EN_SOUND     (1<<2)
diff --git a/common/menu.c b/common/menu.c
index 4d980fa..dc53393 100644
--- a/common/menu.c
+++ b/common/menu.c
@@ -1,4 +1,4 @@
-// (c) Copyright 2006,2007 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.
@@ -38,7 +38,7 @@ static int menu_sel_color = -1; // disabled
 static void text_out16_(int x, int y, const char *text, int color)
 {
 	int i, l, u, tr, tg, tb, len;
-	unsigned short *dest = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;
+	unsigned short *dest = (unsigned short *)g_screen_ptr + x + y * g_screen_width;
 	tr = (color & 0xf800) >> 8;
 	tg = (color & 0x07e0) >> 3;
 	tb = (color & 0x001f) << 3;
@@ -61,7 +61,7 @@ static void text_out16_(int x, int y, const char *text, int color)
 	{
 		unsigned char  *src = menu_font_data + (unsigned int)text[i]*4*10;
 		unsigned short *dst = dest;
-		for (l = 0; l < 10; l++, dst += SCREEN_WIDTH-8)
+		for (l = 0; l < 10; l++, dst += g_screen_width - 8)
 		{
 			for (u = 8/2; u > 0; u--, src++)
 			{
@@ -92,7 +92,7 @@ void text_out16(int x, int y, const char *texto, ...)
 {
 	va_list args;
 	char    buffer[256];
-	int     maxw = (SCREEN_WIDTH - x) / 8;
+	int     maxw = (g_screen_width - x) / 8;
 
 	if (maxw < 0)
 		return;
@@ -123,7 +123,7 @@ static void smalltext_out16_(int x, int y, const char *texto, int color)
 		if (!c) break;
 
 		src = fontdata6x8[c];
-		dst = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH;
+		dst = (unsigned short *)g_screen_ptr + x + y * g_screen_width;
 
 		while (h--)
 		{
@@ -136,15 +136,15 @@ static void smalltext_out16_(int x, int y, const char *texto, int color)
 			}
 			src++;
 
-			dst += SCREEN_WIDTH-6;
+			dst += g_screen_width - 6;
 		}
 	}
 }
 
 void smalltext_out16(int x, int y, const char *texto, int color)
 {
-	char buffer[SCREEN_WIDTH/6+1];
-	int maxw = (SCREEN_WIDTH - x) / 6;
+	char buffer[128];
+	int maxw = (g_screen_width - x) / 6;
 
 	if (maxw < 0)
 		return;
@@ -167,13 +167,13 @@ static void menu_draw_selection(int x, int y, int w)
 	if (menu_sel_color < 0) return; // no selection hilight
 
 	if (y > 0) y--;
-	dest = (unsigned short *)SCREEN_BUFFER + x + y*SCREEN_WIDTH + 14;
+	dest = (unsigned short *)g_screen_ptr + x + y * g_screen_width + 14;
 	for (h = 11; h > 0; h--)
 	{
 		dst = dest;
 		for (i = w; i > 0; i--)
 			*dst++ = menu_sel_color;
-		dest += SCREEN_WIDTH;
+		dest += g_screen_width;
 	}
 }
 
@@ -334,17 +334,17 @@ static void me_draw(const menu_entry *entries, int sel)
 	h = n * 10;
 	w += 16; /* selector */
 
-	if (w > SCREEN_WIDTH) {
-		lprintf("width %d > %d\n", w, SCREEN_WIDTH);
-		w = SCREEN_WIDTH;
+	if (w > g_screen_width) {
+		lprintf("width %d > %d\n", w, g_screen_width);
+		w = g_screen_width;
 	}
-	if (h > SCREEN_HEIGHT) {
-		lprintf("height %d > %d\n", w, SCREEN_HEIGHT);
-		h = SCREEN_HEIGHT;
+	if (h > g_screen_height) {
+		lprintf("height %d > %d\n", w, g_screen_height);
+		h = g_screen_height;
 	}
 
-	x = SCREEN_WIDTH  / 2 - w / 2;
-	y = SCREEN_HEIGHT / 2 - h / 2;
+	x = g_screen_width  / 2 - w / 2;
+	y = g_screen_height / 2 - h / 2;
 
 	/* draw */
 	plat_video_menu_begin();
@@ -390,7 +390,7 @@ static void me_draw(const menu_entry *entries, int sel)
 	/* display message if we have one */
 	if (menuErrorMsg[0] != 0) {
 		static int msg_redraws = 0;
-		if (SCREEN_HEIGHT - h >= 2*10)
+		if (g_screen_height - h >= 2*10)
 			text_out16(5, 226, menuErrorMsg);
 		else
 			lprintf("menu msg doesn't fit!\n");
@@ -510,14 +510,14 @@ static void draw_menu_credits(void)
 		p++;
 	}
 
-	x = SCREEN_WIDTH  / 2 - w *  8 / 2;
-	y = SCREEN_HEIGHT / 2 - h * 10 / 2;
+	x = g_screen_width  / 2 - w *  8 / 2;
+	y = g_screen_height / 2 - h * 10 / 2;
 	if (x < 0) x = 0;
 	if (y < 0) y = 0;
 
 	plat_video_menu_begin();
 
-	for (p = creds; *p != 0 && y <= SCREEN_HEIGHT - 10; y += 10) {
+	for (p = creds; *p != 0 && y <= g_screen_height - 10; y += 10) {
 		text_out16(x, y, p);
 
 		for (; *p != 0 && *p != '\n'; p++)
@@ -535,30 +535,30 @@ static int cdload_called = 0;
 
 static void load_progress_cb(int percent)
 {
-	int ln, len = percent * SCREEN_WIDTH / 100;
-	unsigned short *dst = (unsigned short *)SCREEN_BUFFER + SCREEN_WIDTH * 10 * 2;
+	int ln, len = percent * g_screen_width / 100;
+	unsigned short *dst = (unsigned short *)g_screen_ptr + g_screen_width * 10 * 2;
 
-	if (len > SCREEN_WIDTH)
-		len = SCREEN_WIDTH;
-	for (ln = 10 - 2; ln > 0; ln--, dst += SCREEN_WIDTH)
+	if (len > g_screen_width)
+		len = g_screen_width;
+	for (ln = 10 - 2; ln > 0; ln--, dst += g_screen_width)
 		memset(dst, 0xff, len * 2);
 	plat_video_menu_end();
 }
 
 static void cdload_progress_cb(int percent)
 {
-	int ln, len = percent * SCREEN_WIDTH / 100;
-	unsigned short *dst = (unsigned short *)SCREEN_BUFFER + SCREEN_WIDTH * 10 * 2;
+	int ln, len = percent * g_screen_width / 100;
+	unsigned short *dst = (unsigned short *)g_screen_ptr + g_screen_width * 10 * 2;
 
-	memset(dst, 0xff, SCREEN_WIDTH * (10 - 2) * 2);
+	memset(dst, 0xff, g_screen_width * (10 - 2) * 2);
 
 	smalltext_out16(1, 3 * 10, "Processing CD image / MP3s", 0xffff);
 	smalltext_out16(1, 4 * 10, rom_fname_loaded, 0xffff);
-	dst += SCREEN_WIDTH * 30;
+	dst += g_screen_width * 30;
 
-	if (len > SCREEN_WIDTH)
-		len = SCREEN_WIDTH;
-	for (ln = (10 - 2); ln > 0; ln--, dst += SCREEN_WIDTH)
+	if (len > g_screen_width)
+		len = g_screen_width;
+	for (ln = (10 - 2); ln > 0; ln--, dst += g_screen_width)
 		memset(dst, 0xff, len * 2);
 
 	plat_video_menu_end();
@@ -618,7 +618,7 @@ static void draw_dirlist(char *curdir, struct dirent **namelist, int n, int sel)
 {
 	int max_cnt, start, i, pos;
 
-	max_cnt = SCREEN_HEIGHT / 10;
+	max_cnt = g_screen_height / 10;
 	start = max_cnt / 2 - sel;
 	n--; // exclude current dir (".")
 
@@ -627,7 +627,7 @@ static void draw_dirlist(char *curdir, struct dirent **namelist, int n, int sel)
 //	if (!rom_loaded)
 //		menu_darken_bg(gp2x_screen, 320*240, 0);
 
-	menu_darken_bg((short *)SCREEN_BUFFER + SCREEN_WIDTH * max_cnt/2 * 10, SCREEN_WIDTH * 8, 0);
+	menu_darken_bg((short *)g_screen_ptr + g_screen_width * max_cnt/2 * 10, g_screen_width * 8, 0);
 
 	if (start - 2 >= 0)
 		smalltext_out16(14, (start - 2)*10, curdir, 0xffff);
@@ -723,14 +723,14 @@ rescan:
 	{
 		draw_dirlist(curr_path, namelist, n, sel);
 		inp = in_menu_wait(PBTN_UP|PBTN_DOWN|PBTN_LEFT|PBTN_RIGHT|
-			PBTN_L|PBTN_R|PBTN_WEST|PBTN_MOK|PBTN_MBACK|PBTN_MENU, 33); // TODO L R
+			PBTN_L|PBTN_R|PBTN_MA2|PBTN_MOK|PBTN_MBACK|PBTN_MENU, 33);
 		if (inp & PBTN_UP  )  { sel--;   if (sel < 0)   sel = n-2; }
 		if (inp & PBTN_DOWN)  { sel++;   if (sel > n-2) sel = 0; }
 		if (inp & PBTN_LEFT)  { sel-=10; if (sel < 0)   sel = 0; }
 		if (inp & PBTN_L)     { sel-=24; if (sel < 0)   sel = 0; }
 		if (inp & PBTN_RIGHT) { sel+=10; if (sel > n-2) sel = n-2; }
 		if (inp & PBTN_R)     { sel+=24; if (sel > n-2) sel = n-2; }
-		if ((inp & PBTN_MOK) || (inp & (PBTN_MENU|PBTN_WEST)) == (PBTN_MENU|PBTN_WEST)) // enter dir/select || delete
+		if ((inp & PBTN_MOK) || (inp & (PBTN_MENU|PBTN_MA2)) == (PBTN_MENU|PBTN_MA2))
 		{
 			again:
 			if (namelist[sel+1]->d_type == DT_REG)
@@ -810,7 +810,7 @@ static void draw_patchlist(int sel)
 {
 	int max_cnt, start, i, pos, active;
 
-	max_cnt = SCREEN_HEIGHT / 10;
+	max_cnt = g_screen_height / 10;
 	start = max_cnt / 2 - sel;
 
 	plat_video_menu_begin();
@@ -932,9 +932,9 @@ static void draw_savestate_menu(int menu_sel, int is_loading)
 
 	w = 13 * 8 + 16;
 	h = (1+2+10+1) * 10;
-	x = SCREEN_WIDTH / 2 - w / 2;
+	x = g_screen_width / 2 - w / 2;
 	if (x < 0) x = 0;
-	y = SCREEN_HEIGHT / 2 - h / 2;
+	y = g_screen_height / 2 - h / 2;
 	if (y < 0) y = 0;
 
 	plat_video_menu_begin();
@@ -945,7 +945,6 @@ static void draw_savestate_menu(int menu_sel, int is_loading)
 	menu_draw_selection(x - 16, y + menu_sel * 10, 13 * 8 + 4);
 
 	/* draw all 10 slots */
-	y += 10;
 	for (i = 0; i < 10; i++, y += 10)
 	{
 		text_out16(x, y, "SLOT %i (%s)", i, (state_slot_flags & (1 << i)) ? "USED" : "free");
@@ -1060,7 +1059,7 @@ static void draw_key_config(const me_bind_action *opts, int opt_cnt, int player_
 	int x, y = 30, w, i;
 	const char *dev_name;
 
-	x = SCREEN_WIDTH / 2 - 32*8 / 2;
+	x = g_screen_width / 2 - 32*8 / 2;
 	if (x < 0) x = 0;
 
 	plat_video_menu_begin();
@@ -1079,20 +1078,20 @@ static void draw_key_config(const me_bind_action *opts, int opt_cnt, int player_
 	w = strlen(dev_name) * 8;
 	if (w < 30 * 8)
 		w = 30 * 8;
-	if (w > SCREEN_WIDTH)
-		w = SCREEN_WIDTH;
+	if (w > g_screen_width)
+		w = g_screen_width;
 
-	x = SCREEN_WIDTH / 2 - w / 2;
+	x = g_screen_width / 2 - w / 2;
 
 	if (dev_count > 1) {
-		text_out16(x, SCREEN_HEIGHT - 4*10, "Viewing binds for:");
-		text_out16(x, SCREEN_HEIGHT - 3*10, dev_name);
+		text_out16(x, g_screen_height - 4*10, "Viewing binds for:");
+		text_out16(x, g_screen_height - 3*10, dev_name);
 	}
 
 	if (is_bind)
-		text_out16(x, SCREEN_HEIGHT - 2*10, "Press a button to bind/unbind");
+		text_out16(x, g_screen_height - 2*10, "Press a button to bind/unbind");
 	else if (dev_count > 1)
-		text_out16(x, SCREEN_HEIGHT - 2*10, "Press left/right for other devs");
+		text_out16(x, g_screen_height - 2*10, "Press left/right for other devs");
 
 	plat_video_menu_end();
 }
@@ -1653,7 +1652,8 @@ static void mplayer_loop(void)
 	while (1)
 	{
 		PDebugZ80Frame();
-		if (in_menu_wait_any(0) & PBTN_NORTH) break;
+		if (in_menu_wait_any(0) & PBTN_MA3)
+			break;
 		emu_waitSound();
 	}
 
@@ -1674,7 +1674,7 @@ static void draw_text_debug(const char *str, int skip, int from)
 	}
 
 	str = p;
-	for (line = from; line < SCREEN_HEIGHT/10; line++)
+	for (line = from; line < g_screen_height / 10; line++)
 	{
 		while (*p && *p != '\n') p++;
 		smalltext_out16(1, line*10, str, 0xffff);
@@ -1691,9 +1691,9 @@ static void draw_frame_debug(void)
 	if (PicoDrawMask & PDRAW_SPRITES_LOW_ON) memcpy(layer_str + 12, "spr_lo", 6);
 	if (PicoDrawMask & PDRAW_SPRITES_HI_ON)  memcpy(layer_str + 19, "spr_hi", 6);
 
-	clear_screen();
+	memset(g_screen_ptr, 0, g_screen_width * g_screen_height * 2);
 	emu_forcedFrame(0);
-	smalltext_out16(4, SCREEN_HEIGHT-8, layer_str, 0xffff);
+	smalltext_out16(4, g_screen_height - 8, layer_str, 0xffff);
 }
 
 static void debug_menu_loop(void)
@@ -1711,26 +1711,26 @@ static void debug_menu_loop(void)
 				emu_platformDebugCat(tmp);
 				draw_text_debug(tmp, 0, 0);
 				if (dumped) {
-					smalltext_out16(SCREEN_WIDTH-6*10, SCREEN_HEIGHT-8, "dumped", 0xffff);
+					smalltext_out16(g_screen_width - 6*10, g_screen_height - 8, "dumped", 0xffff);
 					dumped = 0;
 				}
 				break;
 			case 1: draw_frame_debug(); break;
-			case 2: clear_screen();
+			case 2: memset(g_screen_ptr, 0, g_screen_width * g_screen_height * 2);
 				emu_forcedFrame(0);
-				darken_screen();
-				PDebugShowSpriteStats((unsigned short *)SCREEN_BUFFER + (SCREEN_HEIGHT/2 - 240/2)*SCREEN_WIDTH +
-					SCREEN_WIDTH/2 - 320/2, SCREEN_WIDTH); break;
-			case 3: clear_screen();
-				PDebugShowPalette(SCREEN_BUFFER, SCREEN_WIDTH);
-				PDebugShowSprite((unsigned short *)SCREEN_BUFFER + SCREEN_WIDTH*120+SCREEN_WIDTH/2+16,
-					SCREEN_WIDTH, spr_offs);
+				menu_darken_bg(g_screen_ptr, g_screen_width * g_screen_height, 0);
+				PDebugShowSpriteStats((unsigned short *)g_screen_ptr + (g_screen_height/2 - 240/2)*g_screen_width +
+					g_screen_width/2 - 320/2, g_screen_width); break;
+			case 3: memset(g_screen_ptr, 0, g_screen_width * g_screen_height * 2);
+				PDebugShowPalette(g_screen_ptr, g_screen_width);
+				PDebugShowSprite((unsigned short *)g_screen_ptr + g_screen_width*120 + g_screen_width/2 + 16,
+					g_screen_width, spr_offs);
 				draw_text_debug(PDebugSpriteList(), spr_offs, 6);
 				break;
 		}
 		plat_video_menu_end();
 
-		inp = in_menu_wait(PBTN_EAST|PBTN_MBACK|PBTN_WEST|PBTN_NORTH|PBTN_L|PBTN_R |
+		inp = in_menu_wait(PBTN_MOK|PBTN_MBACK|PBTN_MA2|PBTN_MA3|PBTN_L|PBTN_R |
 					PBTN_UP|PBTN_DOWN|PBTN_LEFT|PBTN_RIGHT, 70);
 		if (inp & PBTN_MBACK) return;
 		if (inp & PBTN_L) { mode--; if (mode < 0) mode = 3; }
@@ -1738,15 +1738,17 @@ static void debug_menu_loop(void)
 		switch (mode)
 		{
 			case 0:
-				if (inp & PBTN_EAST) SekStepM68k();
-				if (inp & PBTN_NORTH) {
-					while (inp & PBTN_NORTH) inp = in_menu_wait_any(-1);
+				if (inp & PBTN_MOK)
+					SekStepM68k();
+				if (inp & PBTN_MA3) {
+					while (inp & PBTN_MA3)
+						inp = in_menu_wait_any(-1);
 					mplayer_loop();
 				}
-				if ((inp & (PBTN_WEST|PBTN_LEFT)) == (PBTN_WEST|PBTN_LEFT)) {
+				if ((inp & (PBTN_MA2|PBTN_LEFT)) == (PBTN_MA2|PBTN_LEFT)) {
 					mkdir("dumps", 0777);
 					PDebugDumpMem();
-					while (inp & PBTN_WEST) inp = in_menu_wait_any(-1);
+					while (inp & PBTN_MA2) inp = in_menu_wait_any(-1);
 					dumped = 1;
 				}
 				break;
@@ -1755,12 +1757,12 @@ static void debug_menu_loop(void)
 				if (inp & PBTN_RIGHT) PicoDrawMask ^= PDRAW_LAYERA_ON;
 				if (inp & PBTN_DOWN)  PicoDrawMask ^= PDRAW_SPRITES_LOW_ON;
 				if (inp & PBTN_UP)    PicoDrawMask ^= PDRAW_SPRITES_HI_ON;
-				if (inp & PBTN_EAST) {
+				if (inp & PBTN_MOK) {
 					PsndOut = NULL; // just in case
 					PicoSkipFrame = 1;
 					PicoFrame();
 					PicoSkipFrame = 0;
-					while (inp & PBTN_EAST) inp = in_menu_wait_any(-1);
+					while (inp & PBTN_MOK) inp = in_menu_wait_any(-1);
 				}
 				break;
 			case 3:
diff --git a/gp2x/940ctl.c b/gp2x/940ctl.c
index 1c6e4ca..d219d8a 100644
--- a/gp2x/940ctl.c
+++ b/gp2x/940ctl.c
@@ -313,7 +313,7 @@ void YM2612Init_940(int baseclock, int rate)
 		fp = fopen(binpath, "rb");
 		if(!fp)
 		{
-			memset(gp2x_screen, 0, 320*240*2);
+			memset(g_screen_ptr, 0, 320*240*2);
 			text_out16(10, 100, "failed to open required file:");
 			text_out16(10, 110, CODE940_FILE);
 			gp2x_video_flip2();
diff --git a/gp2x/emu.c b/gp2x/emu.c
index f5052db..237105a 100644
--- a/gp2x/emu.c
+++ b/gp2x/emu.c
@@ -17,7 +17,6 @@
 #include "emu.h"
 #include "gp2x.h"
 #include "menu.h"
-#include "../linux/usbjoy.h"
 #include "../common/arm_utils.h"
 #include "../common/fonts.h"
 #include "../common/emu.h"
@@ -167,23 +166,24 @@ void emu_prepareDefaultConfig(void)
 void osd_text(int x, int y, const char *text)
 {
 	int len = strlen(text)*8;
+	int *p, i, h, offs;
 
 	if ((PicoOpt&0x10)||!(currentConfig.EmuOpt&0x80)) {
-		int *p, i, h;
-		x &= ~3; // align x
 		len = (len+3) >> 2;
 		for (h = 0; h < 8; h++) {
-			p = (int *) ((unsigned char *) gp2x_screen+x+320*(y+h));
-			for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
+			offs = (x + g_screen_width * (y+h)) & ~3;
+			p = (int *) ((char *)g_screen_ptr + offs);
+			for (i = len; i; i--, p++)
+				*p = 0xe0e0e0e0;
 		}
 		emu_textOut8(x, y, text);
 	} else {
-		int *p, i, h;
-		x &= ~1; // align x
 		len = (len+1) >> 1;
 		for (h = 0; h < 8; h++) {
-			p = (int *) ((unsigned short *) gp2x_screen+x+320*(y+h));
-			for (i = len; i; i--, p++) *p = (*p>>2)&0x39e7;
+			offs = (x + g_screen_width * (y+h)) & ~1;
+			p = (int *) ((short *)g_screen_ptr + offs);
+			for (i = len; i; i--, p++)
+				*p = (*p >> 2) & 0x39e7;
 		}
 		emu_textOut16(x, y, text);
 	}
@@ -200,15 +200,15 @@ 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 + 320*2+ 4) =
-		*(unsigned int *)((char *)gp2x_screen + 320*3+ 4) =
-		*(unsigned int *)((char *)gp2x_screen + 320*4+ 4) = col_g;
-		*(unsigned int *)((char *)gp2x_screen + 320*2+12) =
-		*(unsigned int *)((char *)gp2x_screen + 320*3+12) =
-		*(unsigned int *)((char *)gp2x_screen + 320*4+12) = col_r;
+		*(unsigned int *)((char *)g_screen_ptr + 320*2+ 4) =
+		*(unsigned int *)((char *)g_screen_ptr + 320*3+ 4) =
+		*(unsigned int *)((char *)g_screen_ptr + 320*4+ 4) = col_g;
+		*(unsigned int *)((char *)g_screen_ptr + 320*2+12) =
+		*(unsigned int *)((char *)g_screen_ptr + 320*3+12) =
+		*(unsigned int *)((char *)g_screen_ptr + 320*4+12) = col_r;
 	} else {
 		// 16-bit modes
-		unsigned int *p = (unsigned int *)((short *)gp2x_screen + 320*2+4);
+		unsigned int *p = (unsigned int *)((short *)g_screen_ptr + 320*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 += 320/2 - 12/2;
@@ -219,7 +219,7 @@ static void draw_cd_leds(void)
 
 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;
@@ -239,7 +239,7 @@ 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 + 320 * num;
+	DrawLineDest = (unsigned short *) g_screen_ptr + g_screen_width * num;
 
 	return 0;
 }
@@ -247,7 +247,7 @@ static int EmuScanBegin16(unsigned int num)
 static int EmuScanBegin8(unsigned int num)
 {
 	if (!(Pico.video.reg[1]&8)) num += 8;
-	DrawLineDest = (unsigned char *)  gp2x_screen + 320 * num;
+	DrawLineDest = (unsigned char *)  g_screen_ptr + g_screen_width * num;
 
 	return 0;
 }
@@ -272,7 +272,7 @@ static void blit(const char *fps, const char *notice)
 		if (PicoRead16Hook == PicoSVPRead16)
 			memset32((int *)(PicoDraw2FB+328*8+328*223), 0xe0e0e0e0, 328);
 		// do actual copy
-		vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);
+		vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);
 	}
 	else if (!(emu_opt&0x80))
 	{
@@ -326,12 +326,12 @@ static void blit(const char *fps, const char *notice)
 	if (!(PicoOpt&0x10)) {
 		if (!(Pico.video.reg[1]&8)) {
 			if (currentConfig.EmuOpt&0x80) {
-				DrawLineDest = (unsigned short *) gp2x_screen + 320*8;
+				DrawLineDest = (unsigned short *) g_screen_ptr + 320*8;
 			} else {
-				DrawLineDest = (unsigned char  *) gp2x_screen + 320*8;
+				DrawLineDest = (unsigned char  *) g_screen_ptr + 320*8;
 			}
 		} else {
-			DrawLineDest = gp2x_screen;
+			DrawLineDest = g_screen_ptr;
 		}
 	}
 }
@@ -389,12 +389,12 @@ static void emu_msg_cb(const char *msg)
 		// 8-bit renderers
 		gp2x_memset_all_buffers(320*232, 0xe0, 320*8);
 		osd_text(4, 232, msg);
-		gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232, 320*232, 320*8);
+		gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232, 320*232, 320*8);
 	} else {
 		// 16bit accurate renderer
 		gp2x_memset_all_buffers(320*232*2, 0, 320*8*2);
 		osd_text(4, 232, msg);
-		gp2x_memcpy_all_buffers((char *)gp2x_screen+320*232*2, 320*232*2, 320*8*2);
+		gp2x_memcpy_all_buffers((char *)g_screen_ptr+320*232*2, 320*232*2, 320*8*2);
 	}
 	gettimeofday(&noticeMsgTime, 0);
 	noticeMsgTime.tv_sec -= 2;
@@ -521,7 +521,7 @@ static void RunEvents(unsigned int which)
 		if (do_it) {
 			osd_text(4, 232, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
 			PicoStateProgressCB = emu_state_cb;
-			gp2x_memcpy_all_buffers(gp2x_screen, 0, 320*240*2);
+			gp2x_memcpy_all_buffers(g_screen_ptr, 0, 320*240*2);
 			emu_SaveLoadGame((which & 0x1000) >> 12, 0);
 			PicoStateProgressCB = NULL;
 		}
@@ -567,14 +567,10 @@ 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) {
+	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;
@@ -612,22 +608,6 @@ static void updateKeys(void)
 	}
 #endif
 
-	// add joy inputs
-	if (num_of_joys > 0)
-	{
-		usbjoy_update();
-		for (joy = 0; joy < num_of_joys; joy++) {
-			int btns = 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;
 
@@ -736,7 +716,7 @@ void emu_forcedFrame(int opts)
 		clearArea(1);
 	} else	vidCpyM2 = vidCpyM2_40col;
 
-	vidCpyM2((unsigned char *)gp2x_screen+320*8, PicoDraw2FB+328*8);
+	vidCpyM2((unsigned char *)g_screen_ptr+320*8, PicoDraw2FB+328*8);
 	vidConvCpyRGB32(localPal, Pico.cram, 0x40);
 	gp2x_video_setpalette(localPal, 0x40);
 */
@@ -799,11 +779,11 @@ static void tga_dump(void)
 #define CONV(X) (((X>>1)&0x7fe0)|(X&0x1f)) // 555?
 
 	for (i = 0; i < 320*240; i++)
-		if(oldscr[i] != CONV(((unsigned short *)gp2x_screen)[i])) break;
+		if(oldscr[i] != CONV(((unsigned short *)g_screen_ptr)[i])) break;
 	if (i < 320*240)
 	{
 		for (i = 0; i < 320*240; i++)
-			oldscr[i] = CONV(((unsigned short *)gp2x_screen)[i]);
+			oldscr[i] = CONV(((unsigned short *)g_screen_ptr)[i]);
 		sprintf(name, "%05i.tga", Pico.m.frame_count);
 		f = fopen(name, "wb");
 		if (!f) { printf("!f\n"); exit(1); }
diff --git a/gp2x/gp2x.c b/gp2x/gp2x.c
index 89505a0..e0aa296 100644
--- a/gp2x/gp2x.c
+++ b/gp2x/gp2x.c
@@ -32,7 +32,6 @@
 #include <errno.h>
 
 #include "gp2x.h"
-#include "../linux/usbjoy.h"
 #include "../linux/sndout_oss.h"
 #include "../common/arm_utils.h"
 #include "../common/arm_linux.h"
@@ -47,8 +46,6 @@ int memdev = 0;
 static int touchdev = -1;
 static int touchcal[7] = { 6203, 0, -1501397, 0, -4200, 16132680, 65536 };
 
-void *gp2x_screen;
-
 #define FRAMEBUFF_WHOLESIZE (0x30000*4) // 320*240*2 + some more
 #define FRAMEBUFF_ADDR0 (0x4000000-FRAMEBUFF_WHOLESIZE)
 #define FRAMEBUFF_ADDR1 (FRAMEBUFF_ADDR0+0x30000)
@@ -72,7 +69,7 @@ void gp2x_video_flip(void)
   	gp2x_memregs[0x2912>>1] = lsw;
 
 	// jump to other buffer:
-	gp2x_screen = gp2x_screens[++screensel&3];
+	g_screen_ptr = gp2x_screens[++screensel&3];
 }
 
 /* doulblebuffered flip */
@@ -86,7 +83,7 @@ void gp2x_video_flip2(void)
   	gp2x_memregs[0x2912>>1] = 0;
 
 	// jump to other buffer:
-	gp2x_screen = gp2x_screens[++screensel&1];
+	g_screen_ptr = gp2x_screens[++screensel&1];
 }
 
 
@@ -162,7 +159,7 @@ void gp2x_video_wait_vsync(void)
 void gp2x_video_flush_cache(void)
 {
 	// since we are using the mmu hack, we must flush the cache first
-	cache_flush_d_inval_i(gp2x_screen, (char *)gp2x_screen + 320*240*2);
+	cache_flush_d_inval_i(g_screen_ptr, (char *)g_screen_ptr + 320*240*2);
 }
 
 
@@ -193,11 +190,11 @@ void gp2x_memset_all_buffers(int offset, int byte, int len)
 
 void gp2x_pd_clone_buffer2(void)
 {
-	memcpy(gp2x_screen, gp2x_screens[2], 320*240*2);
+	memcpy(g_screen_ptr, gp2x_screens[2], 320*240*2);
 }
 
 
-unsigned long gp2x_joystick_read(int allow_usb_joy)
+unsigned long gp2x_joystick_read(int unused)
 {
 	int i;
   	unsigned long value=(gp2x_memregs[0x1198>>1] & 0x00FF); // GPIO M
@@ -207,13 +204,6 @@ unsigned long gp2x_joystick_read(int allow_usb_joy)
   	if(value==0x7F) value=0xBE;
   	value = ~((gp2x_memregs[0x1184>>1] & 0xFF00) | value | (gp2x_memregs[0x1186>>1] << 16)); // C D
 
-	if (allow_usb_joy && num_of_joys > 0) {
-		// check the usb joy as well..
-		usbjoy_update();
-		for (i = 0; i < num_of_joys; i++)
-			value |= usbjoy_check(i);
-	}
-
 	return value;
 }
 
@@ -318,7 +308,7 @@ void gp2x_init(void)
   	gp2x_screens[0] = mmap(0, FRAMEBUFF_WHOLESIZE, PROT_WRITE, MAP_SHARED, memdev, FRAMEBUFF_ADDR0);
 	if(gp2x_screens[0] == MAP_FAILED)
 	{
-		perror("mmap(gp2x_screen)");
+		perror("mmap(g_screen_ptr)");
 		exit(1);
 	}
 	printf("framebuffers point to %p\n", gp2x_screens[0]);
@@ -326,7 +316,7 @@ void gp2x_init(void)
 	gp2x_screens[2] = (char *) gp2x_screens[1]+0x30000;
 	gp2x_screens[3] = (char *) gp2x_screens[2]+0x30000;
 
-	gp2x_screen = gp2x_screens[0];
+	g_screen_ptr = gp2x_screens[0];
 	screensel = 0;
 
 	gp2x_screenaddr_old[0] = gp2x_memregs[0x290E>>1];
@@ -340,9 +330,6 @@ void gp2x_init(void)
 	// snd
 	sndout_oss_init();
 
-	/* init usb joys -GnoStiC */
-	usbjoy_init();
-
 	// touchscreen
 	touchdev = open("/dev/touchscreen/wm97xx", O_RDONLY);
 	if (touchdev >= 0) {
@@ -381,7 +368,6 @@ void gp2x_deinit(void)
 	if (touchdev >= 0) close(touchdev);
 
 	sndout_oss_exit();
-	usbjoy_deinit();
 
 	printf("all done, running ");
 
diff --git a/gp2x/gp2x.h b/gp2x/gp2x.h
index b61b853..4636e93 100644
--- a/gp2x/gp2x.h
+++ b/gp2x/gp2x.h
@@ -29,7 +29,6 @@ void Pause940(int yes);
 void Reset940(int yes, int bank);
 
 
-extern void *gp2x_screen;
 extern int memdev;
 
 
diff --git a/gp2x/plat.c b/gp2x/plat.c
index 16fa183..a2b8394 100644
--- a/gp2x/plat.c
+++ b/gp2x/plat.c
@@ -4,6 +4,7 @@
 #include "../common/plat.h"
 #include "../common/readpng.h"
 #include "../common/menu.h"
+#include "../common/emu.h"
 
 
 void plat_video_menu_enter(int is_rom_loaded)
@@ -11,18 +12,18 @@ void plat_video_menu_enter(int is_rom_loaded)
 	if (is_rom_loaded)
 	{
 		// darken the active framebuffer
-		memset(gp2x_screen, 0, 320*8*2);
-		menu_darken_bg((char *)gp2x_screen + 320*8*2, 320*224, 1);
-		memset((char *)gp2x_screen + 320*232*2, 0, 320*8*2);
+		memset(g_screen_ptr, 0, 320*8*2);
+		menu_darken_bg((char *)g_screen_ptr + 320*8*2, 320*224, 1);
+		memset((char *)g_screen_ptr + 320*232*2, 0, 320*8*2);
 	}
 	else
 	{
 		// should really only happen once, on startup..
-		readpng(gp2x_screen, "skin/background.png", READPNG_BG);
+		readpng(g_screen_ptr, "skin/background.png", READPNG_BG);
 	}
 
 	// copy to buffer2
-	gp2x_memcpy_buffers((1<<2), gp2x_screen, 0, 320*240*2);
+	gp2x_memcpy_buffers((1<<2), g_screen_ptr, 0, 320*240*2);
 
 	// switch to 16bpp
 	gp2x_video_changemode2(16);
diff --git a/gp2x/port_config.h b/gp2x/port_config.h
index 9dc2c6a..ba7acee 100644
--- a/gp2x/port_config.h
+++ b/gp2x/port_config.h
@@ -8,6 +8,10 @@
 #define REDUCE_IO_CALLS 0
 #define SIMPLE_WRITE_SOUND 0
 
+#define SCREEN_SIZE_FIXED 1
+#define SCREEN_WIDTH  320
+#define SCREEN_HEIGHT 240
+
 // draw.c
 #define OVERRIDE_HIGHCOL 0
 
diff --git a/linux/Makefile b/linux/Makefile
index acd9307..9edc7ff 100644
--- a/linux/Makefile
+++ b/linux/Makefile
@@ -24,7 +24,7 @@ CFLAGS  += `pkg-config --cflags gthread-2.0`
 LDFLAGS += `pkg-config --libs gthread-2.0`
 
 # frontend
-OBJS += platform/gp2x/main.o platform/gp2x/emu.o platform/gp2x/plat.o usbjoy.o blit.o \
+OBJS += platform/gp2x/main.o platform/gp2x/emu.o platform/gp2x/plat.o blit.o \
 		in_evdev.o plat.o sndout_oss.o gp2x.o 940ctl_ym2612.o log_io.o
 
 # common
diff --git a/linux/gp2x.c b/linux/gp2x.c
index cb1d8d2..4f24ca9 100644
--- a/linux/gp2x.c
+++ b/linux/gp2x.c
@@ -15,16 +15,16 @@
 #include "../gp2x/emu.h"
 #include "../gp2x/gp2x.h"
 #include "../gp2x/version.h"
+#include "../common/emu.h"
 #include "sndout_oss.h"
-#include "usbjoy.h"
 
 #include "log_io.h"
 
-void *gp2x_screen;
 unsigned long current_keys = 0;
 static int current_bpp = 8;
 static int current_pal[256];
 static const char *verstring = "PicoDrive " VERSION;
+static int scr_changed = 0, scr_w = SCREEN_WIDTH, scr_h = SCREEN_HEIGHT;
 
 // dummies
 char *ext_menu = 0, *ext_state = 0;
@@ -111,17 +111,12 @@ static gint key_release_event (GtkWidget *widget, GdkEventKey *event)
 	return 0;
 }
 
-/*
-void                gdk_drawable_get_size               (GdkDrawable *drawable,
-		gint *width,
-		gint *height);
-**/
-
 static void size_allocate_event(GtkWidget *widget, GtkAllocation *allocation, gpointer user_data)
 {
-	gint w, h;
-	gdk_drawable_get_size(gtk_items.window, &w, &h);
-	printf("%dx%d %dx%d\n", allocation->width, allocation->height, w, h);
+	// printf("%dx%d\n", allocation->width, allocation->height);
+	scr_w = allocation->width - 2;
+	scr_h = allocation->height - 2;
+	scr_changed = 1;
 }
 
 static void *gtk_threadf(void *targ)
@@ -153,7 +148,7 @@ static void *gtk_threadf(void *targ)
 	g_signal_connect (G_OBJECT (gtk_items.window), "size_allocate",
 			G_CALLBACK (size_allocate_event), NULL);
 
-	gtk_container_set_border_width (GTK_CONTAINER (gtk_items.window), 2);
+	gtk_container_set_border_width (GTK_CONTAINER (gtk_items.window), 1);
 	gtk_window_set_title ((GtkWindow *) gtk_items.window, verstring);
 
 	box = gtk_hbox_new(FALSE, 0);
@@ -198,28 +193,35 @@ void finalize_image(guchar *pixels, gpointer data)
 
 /* --- */
 
+static void realloc_screen(void)
+{
+	void *old = g_screen_ptr;
+	g_screen_width = scr_w;
+	g_screen_height = scr_h;
+	g_screen_ptr = malloc(g_screen_width * g_screen_height * 2);
+	free(old);
+	scr_changed = 0;
+}
+
 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);
+	realloc_screen();
+	memset(g_screen_ptr, 0, g_screen_width * g_screen_height * 2);
 
 	// snd
 	sndout_oss_init();
 
 	gtk_initf();
 
-	usbjoy_init();
-
 	printf("exitting init()\n"); fflush(stdout);
 }
 
 void gp2x_deinit(void)
 {
-	free(gp2x_screen);
+	free(g_screen_ptr);
 	sndout_oss_exit();
-	usbjoy_deinit();
 }
 
 /* video */
@@ -227,11 +229,13 @@ void gp2x_video_flip(void)
 {
 	GdkPixbuf	*pixbuf;
 	unsigned char	*image;
-	int		i;
+	int		pixel_count, i;
+
+	pixel_count = g_screen_width * g_screen_height;
 
 	gdk_threads_enter();
 
-	image = malloc (320*240*3);
+	image = malloc(pixel_count * 3);
 	if (image == NULL)
 	{
 		gdk_threads_leave();
@@ -240,10 +244,10 @@ void gp2x_video_flip(void)
 
 	if (current_bpp == 8)
 	{
-		unsigned char *pixels = gp2x_screen;
+		unsigned char *pixels = g_screen_ptr;
 		int pix;
 
-		for (i = 0; i < 320*240; i++)
+		for (i = 0; i < pixel_count; i++)
 		{
 			pix = current_pal[pixels[i]];
 			image[3 * i + 0] = pix >> 16;
@@ -253,9 +257,9 @@ void gp2x_video_flip(void)
 	}
 	else
 	{
-		unsigned short *pixels = gp2x_screen;
+		unsigned short *pixels = g_screen_ptr;
 
-		for (i = 0; i < 320*240; i++)
+		for (i = 0; i < pixel_count; i++)
 		{
 			/*  in:           rrrr rggg gggb bbbb */
 			/* out: rrrr r000 gggg gg00 bbbb b000 */
@@ -266,11 +270,15 @@ void gp2x_video_flip(void)
 	}
 
 	pixbuf = gdk_pixbuf_new_from_data (image, GDK_COLORSPACE_RGB,
-			FALSE, 8, 320, 240, 320*3, finalize_image, NULL);
+			FALSE, 8, g_screen_width, g_screen_height,
+			g_screen_width * 3, finalize_image, NULL);
 	gtk_image_set_from_pixbuf (GTK_IMAGE (gtk_items.pixmap1), pixbuf);
 	g_object_unref (pixbuf);
 
 	gdk_threads_leave();
+
+	if (scr_changed)
+		realloc_screen();
 }
 
 void gp2x_video_flip2(void)
@@ -303,40 +311,30 @@ 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);
+	if ((char *)g_screen_ptr + offset != data)
+		memcpy((char *)g_screen_ptr + offset, data, len);
 }
 
 void gp2x_memcpy_all_buffers(void *data, int offset, int len)
 {
-	memcpy((char *)gp2x_screen + offset, data, len);
+	memcpy((char *)g_screen_ptr + offset, data, len);
 }
 
 
 void gp2x_memset_all_buffers(int offset, int byte, int len)
 {
-	memset((char *)gp2x_screen + offset, byte, len);
+	memset((char *)g_screen_ptr + offset, byte, len);
 }
 
 void gp2x_pd_clone_buffer2(void)
 {
-	memset(gp2x_screen, 0, 320*240*2);
+	memset(g_screen_ptr, 0, g_screen_width * g_screen_height * 2);
 }
 
 /* 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..
-		usbjoy_update();
-		for (i = 0; i < num_of_joys; i++)
-			value |= usbjoy_check(i);
-	}
-
-	return value;
+	return current_keys;
 }
 
 int gp2x_touchpad_read(int *x, int *y)
diff --git a/linux/port_config.h b/linux/port_config.h
index b781da7..a8048e4 100644
--- a/linux/port_config.h
+++ b/linux/port_config.h
@@ -10,6 +10,10 @@
 #define REDUCE_IO_CALLS 0
 #define SIMPLE_WRITE_SOUND 0
 
+#define SCREEN_SIZE_FIXED 0
+#define SCREEN_WIDTH  320
+#define SCREEN_HEIGHT 240
+
 // draw.c
 #define OVERRIDE_HIGHCOL 0
 
diff --git a/pandora/emu.c b/pandora/emu.c
index 2d06d98..673c963 100644
--- a/pandora/emu.c
+++ b/pandora/emu.c
@@ -52,7 +52,7 @@ 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);
@@ -126,7 +126,6 @@ void emu_prepareDefaultConfig(void)
 	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;
@@ -142,14 +141,14 @@ 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;
@@ -158,7 +157,7 @@ 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;
@@ -183,7 +182,7 @@ 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 *) gp2x_screen+x+g_screen_width*(y+h));
 			for (i = len; i; i--, p++) *p = 0xe0e0e0e0;
 		}
 		emu_textOut8(x, y, text);
@@ -192,7 +191,7 @@ void osd_text(int x, int y, const char *text)
 		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 *) gp2x_screen+x+g_screen_width*(y+h));
 			for (i = len; i; i--, p++) *p = 0;//(*p>>2)&0x39e7;
 		}
 		textOut16(x, y, text);
@@ -210,19 +209,19 @@ 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 *)gp2x_screen + g_screen_width*2+ 4) =
+		*(unsigned int *)((char *)gp2x_screen + g_screen_width*3+ 4) =
+		*(unsigned int *)((char *)gp2x_screen + g_screen_width*4+ 4) = col_g;
+		*(unsigned int *)((char *)gp2x_screen + g_screen_width*2+12) =
+		*(unsigned int *)((char *)gp2x_screen + g_screen_width*3+12) =
+		*(unsigned int *)((char *)gp2x_screen + 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 *)gp2x_screen + 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;
 	}
 }
@@ -237,7 +236,7 @@ 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;
@@ -305,7 +304,7 @@ static int EmuScanEnd16(unsigned int num)
 static int EmuScanBegin8(unsigned int num)
 {
 	if (!(Pico.video.reg[1]&8)) num += 8;
-	DrawLineDest = (unsigned char *)  gp2x_screen + SCREEN_WIDTH * num;
+	DrawLineDest = (unsigned char *)  gp2x_screen + g_screen_width * num;
 
 	return 0;
 }
@@ -330,7 +329,7 @@ static void blit(const char *fps, const char *notice)
 		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 *)gp2x_screen+g_screen_width*8, PicoDraw2FB+328*8);
 	}
 	else if (!(emu_opt&0x80))
 	{
@@ -368,7 +367,7 @@ static void blit(const char *fps, const char *notice)
 	}
 
 	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)
@@ -393,12 +392,12 @@ 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);
+		if (full) gp2x_memset_all_buffers(0, 0xe0, g_screen_width*240);
+		else      gp2x_memset_all_buffers(g_screen_width*232, 0xe0, g_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) gp2x_memset_all_buffers(0, 0, g_screen_width*g_screen_height*2);
+		else      gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16)*2, 0, g_screen_width*16*2);
 	}
 }
 
@@ -443,16 +442,16 @@ 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);
+		gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16), 0xe0, g_screen_width*16);
+		osd_text(4, g_screen_height-16, msg);
+		gp2x_memcpy_all_buffers((char *)gp2x_screen+g_screen_width*(g_screen_height-16),
+			g_screen_width*(g_screen_height-16), g_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);
+		gp2x_memset_all_buffers(g_screen_width*(g_screen_height-16)*2, 0, g_screen_width*16*2);
+		osd_text(4, g_screen_height-16, msg);
+		gp2x_memcpy_all_buffers((char *)gp2x_screen+g_screen_width*(g_screen_height-16)*2,
+			g_screen_width*(g_screen_height-16)*2, g_screen_width*16*2);
 	}
 	gettimeofday(&noticeMsgTime, 0);
 	noticeMsgTime.tv_sec -= 2;
@@ -581,9 +580,9 @@ static void RunEvents(unsigned int which)
 #endif
 		}
 		if (do_it) {
-			osd_text(4, SCREEN_HEIGHT-16, (which & 0x1000) ? "LOADING GAME" : "SAVING GAME");
+			osd_text(4, g_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);
+			gp2x_memcpy_all_buffers(gp2x_screen, 0, g_screen_width*g_screen_height*2);
 			emu_SaveLoadGame((which & 0x1000) >> 12, 0);
 			PicoStateProgressCB = NULL;
 		}
@@ -708,7 +707,7 @@ 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 *)gp2x_screen+g_screen_width*8, PicoDraw2FB+328*8);
 	vidConvCpyRGB32(localPal, Pico.cram, 0x40);
 	gp2x_video_setpalette(localPal, 0x40);
 */
@@ -851,7 +850,7 @@ 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;
diff --git a/pandora/port_config.h b/pandora/port_config.h
index 9dc2c6a..b82b89c 100644
--- a/pandora/port_config.h
+++ b/pandora/port_config.h
@@ -8,6 +8,10 @@
 #define REDUCE_IO_CALLS 0
 #define SIMPLE_WRITE_SOUND 0
 
+#define SCREEN_SIZE_FIXED 1
+#define SCREEN_WIDTH  800
+#define SCREEN_HEIGHT 480
+
 // draw.c
 #define OVERRIDE_HIGHCOL 0
 
diff --git a/psp/port_config.h b/psp/port_config.h
index 4659b62..a59692c 100644
--- a/psp/port_config.h
+++ b/psp/port_config.h
@@ -8,6 +8,10 @@
 #define REDUCE_IO_CALLS 1      // another workaround
 #define SIMPLE_WRITE_SOUND 0
 
+#define SCREEN_SIZE_FIXED 1
+#define SCREEN_WIDTH  512
+#define SCREEN_HEIGHT 272
+
 // draw.c
 #define USE_BGR555 1
 #define OVERRIDE_HIGHCOL 1
-- 
2.39.2