1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/* ScummVM - Scumm Interpreter
* Copyright (C) 2001-2006 The ScummVM project
* Copyright (C) 2002 Ph0x - GP32 Backend
* Copyright (C) 2003/2004 DJWillis - GP32 Backend
* Copyright (C) 2005 Won Star - GP32 Backend
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* $URL$
* $Id$
*
*/
#include "stdafx.h"
#include "common/scummsys.h"
#include "backends/gp32/gp32std.h"
#include "backends/gp32/gp32std_input.h"
static uint32 buttonState = 0;
static uint16 buttonPressState = 0;
#define GET_BUTTON_PRESSED(a) (buttonPressState & (a))
#define ON_BUTTON_PRESSED(a) (buttonPressState |= (a))
#define OFF_BUTTON_PRESSED(a) (buttonPressState &= ~(a))
#define GET_BUTTON_DOWN(a) (buttonState & (a) << 12)
#define ON_BUTTON_DOWN(a) buttonState |= ((a) << 12)
#define OFF_BUTTON_DOWN(a) buttonState &= ~((a) << 12)
#define GET_BUTTON_UP(a) (buttonState & (a))
#define ON_BUTTON_UP(a) buttonState |= (a)
#define OFF_BUTTON_UP(a) buttonState &= ~(a)
#define rKEY_A 0x4000
#define rKEY_B 0x2000
#define rKEY_L 0x1000
#define rKEY_R 0x8000
#define rKEY_UP 0x0800
#define rKEY_DOWN 0x0200
#define rKEY_LEFT 0x0100
#define rKEY_RIGHT 0x0400
#define rKEY_START 0x0040
#define rKEY_SELECT 0x0080
#define rPBDAT (*(volatile unsigned *)0x1560000c)
#define rPEDAT (*(volatile unsigned *)0x15600030)
/****************************************************************
GP32 Input mappings - Returns Button Pressed.
****************************************************************/
int gp_trapKey() {
int value = 0;
unsigned long gpb = rPBDAT; // 0x156
unsigned long gpe = rPEDAT;
if ((gpb & rKEY_LEFT) == 0)
value |= GPC_VK_LEFT;
if ((gpb & rKEY_RIGHT) == 0)
value |= GPC_VK_RIGHT;
if ((gpb & rKEY_UP) == 0)
value |= GPC_VK_UP;
if ((gpb & rKEY_DOWN) == 0)
value |= GPC_VK_DOWN;
if ((gpb & rKEY_A) == 0)
value |= GPC_VK_FA;
if ((gpb & rKEY_B) == 0)
value |= GPC_VK_FB;
if ((gpb & rKEY_L) == 0)
value |= GPC_VK_FL;
if ((gpb & rKEY_R) == 0)
value |= GPC_VK_FR;
if ((gpe & rKEY_SELECT) == 0)
value |= GPC_VK_SELECT;
if ((gpe & rKEY_START) == 0)
value |= GPC_VK_START;
return value;
}
bool gp_getButtonEvent(uint32 *nKeyUD, uint16 *nKeyP) {
// int nKey = GpKeyGet();
int nKey = gp_trapKey();
const int keyBitMask[10] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x100, 0x200};
for (int i = 0; i < 10; i++) {
OFF_BUTTON_DOWN(keyBitMask[i]);
OFF_BUTTON_UP(keyBitMask[i]);
if (nKey & keyBitMask[i]) {
if (!GET_BUTTON_PRESSED(keyBitMask[i])) {
// GPDEBUG("DOWN %d", i);
ON_BUTTON_PRESSED(keyBitMask[i]);
ON_BUTTON_DOWN(keyBitMask[i]);
}
} else {
if (GET_BUTTON_PRESSED(keyBitMask[i])) {
// GPDEBUG("UP %d", i);
OFF_BUTTON_PRESSED(keyBitMask[i]);
ON_BUTTON_UP(keyBitMask[i]);
}
}
}
// GPDEBUG("%08x %04x", buttonState, buttonPressState);
*nKeyUD = buttonState;
*nKeyP = buttonPressState;
return true;
}
#define MAX_EVENTS 32
struct EventQueue {
protected:
int front, rear;
int numElement;
GP32BtnEvent event[MAX_EVENTS];
public:
void push(GP32BtnEvent *ev) {
if ((rear + 1) % MAX_EVENTS == front) {
GPDEBUG("Queue Overflow!");
return;
}
numElement++;
event[rear].type = ev->type;
event[rear].button = ev->button;
rear = (rear + 1) % MAX_EVENTS;
}
bool isEmpty() {
return (numElement == 0);
}
bool isFull() {
return (numElement == MAX_EVENTS);
}
bool get(GP32BtnEvent *ev) {
if (front == rear) {
return false;
}
numElement--;
ev->type = event[front].type;
ev->button = event[front].button;
front = (front + 1) % MAX_EVENTS;
return true;
}
};
EventQueue eventQueue;
bool gp_pumpButtonEvent() {
int nKey = gp_trapKey();
GP32BtnEvent ev;
const int keyBitMask[10] = {0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x100, 0x200};
for (int i = 0; i < 10; i++) {
if (nKey & keyBitMask[i]) {
if (!GET_BUTTON_PRESSED(keyBitMask[i])) {
ON_BUTTON_PRESSED(keyBitMask[i]);
ev.type = BUTTON_DOWN;
ev.button = keyBitMask[i];
eventQueue.push(&ev);
//ON_BUTTON_DOWN(keyBitMask[i]);
}
} else {
if (GET_BUTTON_PRESSED(keyBitMask[i])) {
OFF_BUTTON_PRESSED(keyBitMask[i]);
ev.type = BUTTON_UP;
ev.button = keyBitMask[i];
eventQueue.push(&ev);
//ON_BUTTON_UP(keyBitMask[i]);
}
}
}
return true;
}
bool gp_pollButtonEvent(GP32BtnEvent *ev) {
gp_pumpButtonEvent();
if(eventQueue.isEmpty()) {
return false;
}
eventQueue.get(ev);
// GPDEBUG("Event poll %d %d", ev->type, ev->button);
return true;
}
bool gp_getButtonPressed(uint16 button)
{
return buttonPressState & button;
}
|
