Development checkin

1 files changed, 262 insertions, 0 deletions

diff --git a/arm9/source/keyboard.c b/arm9/source/keyboard.c
new file mode 100644
index 0000000..d33346d
--- /dev/null
+++ b/arm9/source/keyboard.c
@@ -0,0 +1,262 @@
+/*
+   ds81 - Nintendo DS ZX81 emulator.
+
+   Copyright (C) 2006  Ian Cowburn
+   
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 2
+   of the License, or (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+  
+   $Id$
+*/
+
+#include <nds.h>
+#include "keyboard.h"
+#include "framebuffer.h"
+#include "keyb_bin.h"
+
+/* ---------------------------------------- STATIC DATA
+*/
+static uint16 white = FB_RGB(31, 31, 31);
+static uint16 black = FB_RGB(0, 0, 0);
+
+static struct
+{
+    int	state;
+    int	new_state;
+    int	handled;
+    int is_sticky;
+} key_state[NUM_SOFT_KEYS];
+
+static SoftKey	pad_left_key	= SK_5;
+static SoftKey	pad_right_key	= SK_8;
+static SoftKey	pad_up_key	= SK_7;
+static SoftKey	pad_down_key	= SK_6;
+static SoftKey	pad_A_key	= SK_0;
+static SoftKey	pad_B_key	= SK_NEWLINE;
+static SoftKey	pad_X_key	= NUM_SOFT_KEYS;
+static SoftKey	pad_Y_key	= NUM_SOFT_KEYS;
+static SoftKey	pad_R_key	= NUM_SOFT_KEYS;
+static SoftKey	pad_L_key	= NUM_SOFT_KEYS;
+static SoftKey	pad_start_key	= NUM_SOFT_KEYS;
+static SoftKey	pad_select_key	= NUM_SOFT_KEYS;
+
+#define CHECK_STATE(KEYS,BIT,CODE,SHORTCUT)			\
+	do							\
+	{							\
+	    key_state[CODE].new_state = (KEYS & BIT);		\
+	    if (SHORTCUT != NUM_SOFT_KEYS &&			\
+		!key_state[SHORTCUT].handled)			\
+	    {							\
+		key_state[SHORTCUT].new_state = (KEYS & BIT);	\
+	    }							\
+	} while(0)
+
+
+/* ---------------------------------------- PRIVATE INTERFACES
+*/
+static SoftKey LocatePress(const touchPosition *p)
+{
+    int kx=0,ky=0;
+    int py=0;
+    SoftKey key = NUM_SOFT_KEYS;
+
+    if (p->py > 36 && p->px > 2)
+    {
+	kx = (p->px - 3) / 25;
+	ky = p->py - 37;
+
+	py = ky % 30;
+	ky /= 30;
+
+	if (py<17 && kx >= 0 && kx<10 && ky>=0 && ky<=4)
+	{
+	    key = kx + ky * 10;
+	}
+    }
+
+    return key;
+}
+
+
+/* ---------------------------------------- PUBLIC INTERFACES
+*/
+void SK_DisplayKeyboard(uint16 *vram)
+{
+    sImage img;
+
+    loadPCX(keyb_bin,&img);
+    image8to16(&img);
+    dmaCopy(img.data8,vram,SCREEN_WIDTH*SCREEN_HEIGHT*2);
+}
+
+
+int SK_GetEvent(SoftKeyEvent *ev)
+{
+    static SoftKey last = NUM_SOFT_KEYS;
+    static int poll_index = -1;
+
+    /* Read the keys if this is a new loop
+    */
+    if (poll_index == -1)
+    {
+	int f;
+	uint32 keys;
+
+    	scanKeys();
+
+	keys = keysHeld();
+
+	/* Clear the non-sticky keys
+	*/
+	for(f=SK_1; f<=SK_CONFIG; f++)
+	{
+	    key_state[f].handled = FALSE;
+
+	    if (key_state[f].is_sticky)
+	    {
+		key_state[f].new_state = key_state[f].state;
+	    }
+	    else
+	    {
+		key_state[f].new_state = FALSE;
+	    }
+	}
+
+	/* Check the soft keyboard
+	*/
+	if (keys & KEY_TOUCH)
+	{
+	    touchPosition tp=touchReadXY();
+
+	    if (tp.py<21 || tp.py>165)
+	    {
+	    	key_state[SK_CONFIG].new_state = TRUE;
+	    }
+	    else
+	    {
+	    	SoftKey press;
+
+		press = LocatePress(&tp);
+
+		if (press != NUM_SOFT_KEYS)
+		{
+		    key_state[press].handled = TRUE;
+
+		    if (key_state[press].is_sticky)
+		    {
+			if (last != press)
+			{
+			    key_state[press].new_state =
+			    		!key_state[press].state;
+			}
+		    }
+		    else
+		    {
+			key_state[press].new_state = TRUE;
+		    }
+
+		    last = press;
+		}
+	    }
+	}
+	else
+	{
+	    last = NUM_SOFT_KEYS;
+	}
+
+	/* Check non soft-keyboard controls
+	*/
+	CHECK_STATE(keys, KEY_A,	SK_PAD_A,	pad_A_key);
+	CHECK_STATE(keys, KEY_B,	SK_PAD_B,	pad_B_key);
+	CHECK_STATE(keys, KEY_X,	SK_PAD_X,	pad_X_key);
+	CHECK_STATE(keys, KEY_Y,	SK_PAD_Y,	pad_Y_key);
+	CHECK_STATE(keys, KEY_R,	SK_PAD_R,	pad_R_key);
+	CHECK_STATE(keys, KEY_L,	SK_PAD_L,	pad_L_key);
+	CHECK_STATE(keys, KEY_START,	SK_PAD_START,	pad_start_key);
+	CHECK_STATE(keys, KEY_SELECT,	SK_PAD_SELECT,	pad_select_key);
+	CHECK_STATE(keys, KEY_UP,	SK_PAD_UP,	pad_up_key);
+	CHECK_STATE(keys, KEY_DOWN,	SK_PAD_DOWN,	pad_down_key);
+	CHECK_STATE(keys, KEY_LEFT,	SK_PAD_LEFT,	pad_left_key);
+	CHECK_STATE(keys, KEY_RIGHT,	SK_PAD_RIGHT,	pad_right_key);
+
+	/* Reset key event poll index
+	*/
+	poll_index = 0;
+
+	/* Update any on-screen indicators
+	*/
+	for(f=SK_1; f<SK_CONFIG; f++)
+	{
+	    if (key_state[f].state != key_state[f].new_state)
+	    {
+		int x,y;
+
+		x = 2 + (f % 10) * 25;
+		y = 36 + (f / 10) * 30;
+	    	
+		FB_Box(x, y, 26, 19, key_state[f].new_state ? white:black);
+	    }
+	}
+    }
+
+    while(poll_index < NUM_SOFT_KEYS &&
+    		key_state[poll_index].state == key_state[poll_index].new_state)
+    {
+    	poll_index++;
+    }
+
+    if (poll_index < NUM_SOFT_KEYS)
+    {
+	key_state[poll_index].state = key_state[poll_index].new_state;
+
+	ev->key = poll_index;
+	ev->pressed = key_state[poll_index].state;
+
+	return TRUE;
+    }
+    else
+    {
+    	poll_index = -1;
+	return FALSE;
+    }
+}
+
+
+void SK_SetSticky(SoftKey key, int is_sticky)
+{
+    key_state[key].is_sticky = is_sticky;
+
+    if (!is_sticky)
+    {
+	key_state[key].new_state = FALSE;
+    }
+}
+
+
+void SK_ClearKeys(void)
+{
+    int f;
+
+    for(f=0; f < NUM_SOFT_KEYS; f++)
+    {
+    	key_state[f].state = FALSE;
+    }
+}
+
+
+void SK_DefineJoypad(void)
+{
+}
+
+