pandora: use hw scaler (resolves 32x+sms), frontend refactoring

git-svn-id: file:///home/notaz/opt/svn/PicoDrive@885 be3aeb3a-fb24-0410-a615-afba39da0efa

platform/gp2x/emu.c

@@ -13,6 +13,7 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 
 #include "plat_gp2x.h"
 #include "soc.h"
@@ -871,6 +872,10 @@ void pemu_loop_prep(void)
 	vidResetMode();
 	scaling_update();
 
+	// dirty buffers better go now than during gameplay
+	sync();
+	sleep(0);
+
 	pemu_sound_start();
 }
 

platform/gp2x/plat.c

@@ -85,6 +85,7 @@ void plat_video_menu_enter(int is_rom_loaded)
 void plat_video_menu_begin(void)
 {
 	memcpy(g_screen_ptr, gp2x_screens[2], 320*240*2);
+	g_menuscreen_ptr = g_screen_ptr;
 }
 
 void plat_video_menu_end(void)

platform/gp2x/port_config.h

@@ -11,6 +11,8 @@
 #define SCREEN_SIZE_FIXED 1
 #define SCREEN_WIDTH  320
 #define SCREEN_HEIGHT 240
+#define MSCREEN_WIDTH  SCREEN_WIDTH
+#define MSCREEN_HEIGHT SCREEN_HEIGHT
 
 // draw2.c
 #define START_ROW  0 // which row of tiles to start rendering at?