c62d2810 |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 1998 BERO |
5 | * Copyright (C) 2002 Ben Parnell |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 | */ |
5232c20c |
21 | #include <string.h> |
c62d2810 |
22 | #include "types.h" |
23 | #include "x6502.h" |
24 | |
25 | #include "fce.h" |
26 | #include "sound.h" |
27 | #include "netplay.h" |
28 | #include "svga.h" |
29 | |
30 | #include "input.h" |
31 | |
32 | extern INPUTC *FCEU_InitZapper(int w); |
33 | extern INPUTC *FCEU_InitPowerpad(int w); |
34 | extern INPUTC *FCEU_InitArkanoid(int w); |
35 | |
36 | extern INPUTCFC *FCEU_InitArkanoidFC(void); |
37 | extern INPUTCFC *FCEU_InitSpaceShadow(void); |
38 | extern INPUTCFC *FCEU_InitFKB(void); |
39 | static uint8 joy_readbit[2]; |
40 | static uint16 joy[2]={0,0}; |
41 | |
42 | extern int coinon; |
43 | |
44 | static int FSDisable=0; /* Set to 1 if NES-style four-player adapter is disabled. */ |
45 | static int JPAttrib[2]={0,0}; |
46 | static int JPType[2]={0,0}; |
47 | static void *InputDataPtr[2]; |
48 | |
49 | static int JPAttribFC=0; |
50 | static int JPTypeFC=0; |
51 | static void *InputDataPtrFC; |
52 | |
53 | void (*InputScanlineHook)(uint8 *buf, int line); |
54 | |
55 | static INPUTC DummyJPort={0,0,0,0,0}; |
56 | static INPUTC *JPorts[2]={&DummyJPort,&DummyJPort}; |
57 | static INPUTCFC *FCExp=0; |
58 | |
59 | static uint8 FP_FASTAPASS(1) ReadGPVS(int w) |
60 | { |
61 | uint8 ret=0; |
62 | |
63 | if(joy_readbit[w]>=8) |
64 | ret=1; |
65 | else |
66 | { |
67 | ret = ((joy[w]>>(joy_readbit[w]))&1); |
68 | joy_readbit[w]++; |
69 | } |
70 | return ret; |
71 | } |
72 | |
73 | static uint8 FP_FASTAPASS(1) ReadGP(int w) |
74 | { |
75 | uint8 ret; |
76 | //if(JoyMulti) |
77 | //{ |
78 | //ret = ((joy[w]>>(joy_readbit[w]))&1)| |
79 | //(((joy[w]>>(joy_readbit[w]+8))&1)<<1); |
80 | //if(joy_readbit[w]>8) ret=0; |
81 | //} |
82 | ret = ((joy[w]>>(joy_readbit[w]))&1); |
83 | if(FSDisable) |
84 | { |
85 | if(joy_readbit[w]>=8) ret|=1; |
86 | } |
87 | else |
88 | { |
89 | if(joy_readbit[w]==19-w) ret|=1; |
90 | } |
91 | joy_readbit[w]++; |
92 | return ret; |
93 | } |
94 | |
95 | static DECLFR(JPRead) |
96 | { |
97 | uint8 ret=0; |
98 | |
99 | if(JPorts[A&1]->Read) |
100 | ret|=JPorts[A&1]->Read(A&1); |
101 | |
102 | if(FCExp) |
103 | if(FCExp->Read) |
104 | ret=FCExp->Read(A&1,ret); |
105 | |
106 | ret|=X.DB&0xC0; |
107 | return(ret); |
108 | } |
109 | |
110 | static DECLFW(B4016) |
111 | { |
112 | if(FCExp) |
113 | if(FCExp->Write) |
114 | FCExp->Write(V&7); |
115 | |
116 | if(JPorts[0]->Write) |
117 | JPorts[0]->Write(V&1); |
118 | if(JPorts[1]->Write) |
119 | JPorts[1]->Write(V&1); |
120 | |
121 | if((PSG[0x16]&1) && (!(V&1))) |
122 | { |
123 | /* This strobe code is just for convenience. If it were |
124 | with the code in input / *.c, it would more accurately represent |
125 | what's really going on. But who wants accuracy? ;) |
126 | Seriously, though, this shouldn't be a problem. |
127 | */ |
128 | if(JPorts[0]->Strobe) |
129 | JPorts[0]->Strobe(0); |
130 | if(JPorts[1]->Strobe) |
131 | JPorts[1]->Strobe(1); |
132 | if(FCExp) |
133 | if(FCExp->Strobe) |
134 | FCExp->Strobe(); |
135 | } |
136 | PSG[0x16]=V; |
137 | } |
138 | |
139 | static void FP_FASTAPASS(1) StrobeGP(int w) |
140 | { |
141 | joy_readbit[w]=0; |
142 | } |
143 | |
144 | static INPUTC GPC={ReadGP,0,StrobeGP,0,0,0}; |
145 | static INPUTC GPCVS={ReadGPVS,0,StrobeGP,0,0,0}; |
146 | |
147 | void DrawInput(uint8 *buf) |
148 | { |
149 | int x; |
150 | |
151 | for(x=0;x<2;x++) |
152 | if(JPorts[x]->Draw) |
153 | JPorts[x]->Draw(x,buf,JPAttrib[x]); |
154 | if(FCExp) |
155 | if(FCExp->Draw) |
156 | FCExp->Draw(buf,JPAttribFC); |
157 | } |
158 | |
159 | void UpdateInput(void) |
160 | { |
161 | int x; |
162 | |
163 | for(x=0;x<2;x++) |
164 | { |
165 | switch(JPType[x]) |
166 | { |
167 | case SI_GAMEPAD: |
168 | if(!x) joy[0]=*(uint16 *)InputDataPtr[0]; |
169 | else joy[1]=*(uint16 *)InputDataPtr[1]; |
170 | break; |
171 | default: |
172 | if(JPorts[x]->Update) |
173 | JPorts[x]->Update(x,InputDataPtr[x],JPAttrib[x]); |
174 | break; |
175 | } |
176 | } |
177 | if(FCExp) |
178 | if(FCExp->Update) |
179 | FCExp->Update(InputDataPtrFC,JPAttribFC); |
180 | |
181 | if(FCEUGameInfo.type==GIT_VSUNI) |
182 | { |
183 | uint16 t=joy[0]; |
184 | joy[0]=(joy[0]&0xC)|(joy[1]&0xF3); |
185 | joy[1]=(joy[1]&0xC)|(t&0xF3); |
186 | if(coinon) coinon--; |
187 | } |
188 | #ifdef NETWORK |
189 | if(netplay) NetplayUpdate(&joy[0],&joy[1]); |
190 | #endif |
191 | FlushCommandQueue(); |
192 | } |
193 | |
194 | static DECLFR(VSUNIRead0) |
195 | { |
196 | uint8 ret=0; |
197 | |
198 | if(JPorts[0]->Read) |
199 | ret|=(JPorts[0]->Read(0))&1; |
200 | |
201 | ret|=(vsdip&3)<<3; |
202 | if(coinon) |
203 | ret|=0x4; |
204 | return ret; |
205 | } |
206 | |
207 | static DECLFR(VSUNIRead1) |
208 | { |
209 | uint8 ret=0; |
210 | |
211 | if(JPorts[1]->Read) |
212 | ret|=(JPorts[1]->Read(1))&1; |
213 | ret|=vsdip&0xFC; |
214 | return ret; |
215 | } |
216 | |
217 | static void SLHLHook(uint8 *buf, int line) |
218 | { |
219 | int x; |
220 | |
221 | for(x=0;x<2;x++) |
222 | if(JPorts[x]->SLHook) |
223 | JPorts[x]->SLHook(x,buf,line); |
224 | if(FCExp) |
225 | if(FCExp->SLHook) |
226 | FCExp->SLHook(buf,line); |
227 | } |
228 | |
229 | static void CheckSLHook(void) |
230 | { |
231 | InputScanlineHook=0; |
232 | if(JPorts[0]->SLHook || JPorts[1]->SLHook) |
233 | InputScanlineHook=SLHLHook; |
234 | if(FCExp) |
235 | if(FCExp->SLHook) |
236 | InputScanlineHook=SLHLHook; |
237 | } |
238 | |
239 | static void FASTAPASS(1) SetInputStuff(int x) |
240 | { |
241 | switch(JPType[x]) |
242 | { |
243 | case SI_GAMEPAD: |
244 | if(FCEUGameInfo.type==GIT_VSUNI) |
245 | JPorts[x]=&GPCVS; |
246 | else |
247 | JPorts[x]=&GPC; |
248 | break; |
249 | case SI_ARKANOID:JPorts[x]=FCEU_InitArkanoid(x);break; |
250 | case SI_ZAPPER:JPorts[x]=FCEU_InitZapper(x);break; |
251 | case SI_POWERPAD:JPorts[x]=FCEU_InitPowerpad(x);break; |
252 | case SI_NONE:JPorts[x]=&DummyJPort;break; |
253 | } |
254 | |
255 | CheckSLHook(); |
256 | } |
257 | |
258 | static uint8 F4ReadBit[2]; |
259 | static void StrobeFami4(void) |
260 | { |
261 | F4ReadBit[0]=F4ReadBit[1]=0; |
262 | } |
263 | |
264 | static uint8 FP_FASTAPASS(2) ReadFami4(int w, uint8 ret) |
265 | { |
266 | ret&=1; |
267 | |
268 | ret |= ((joy[w]>>(F4ReadBit[w]+8))&1)<<1; |
269 | if(F4ReadBit[w]>=8) ret|=2; |
270 | else F4ReadBit[w]++; |
271 | |
272 | return(ret); |
273 | } |
274 | |
275 | static INPUTCFC FAMI4C={ReadFami4,0,StrobeFami4,0,0,0}; |
276 | static void SetInputStuffFC(void) |
277 | { |
278 | switch(JPTypeFC) |
279 | { |
280 | case SIFC_NONE:FCExp=0;break; |
281 | case SIFC_ARKANOID:FCExp=FCEU_InitArkanoidFC();break; |
282 | case SIFC_SHADOW:FCExp=FCEU_InitSpaceShadow();break; |
283 | case SIFC_4PLAYER:FCExp=&FAMI4C;memset(&F4ReadBit,0,sizeof(F4ReadBit));break; |
284 | case SIFC_FKB:FCExp=FCEU_InitFKB();break; |
285 | } |
286 | CheckSLHook(); |
287 | } |
288 | |
289 | // VS Unisystem code called after SetInputMap() hooks B4016. Need to |
290 | // rewrite code to make this more sane? |
291 | |
292 | void InitializeInput(void) |
293 | { |
294 | memset(joy_readbit,0,sizeof(joy_readbit)); |
295 | memset(joy,0,sizeof(joy)); |
296 | |
297 | if(FCEUGameInfo.type==GIT_VSUNI) |
298 | { |
299 | SetReadHandler(0x4016,0x4016,VSUNIRead0); |
300 | SetReadHandler(0x4017,0x4017,VSUNIRead1); |
301 | } |
302 | else |
303 | SetReadHandler(0x4016,0x4017,JPRead); |
304 | SetWriteHandler(0x4016,0x4016,B4016); |
305 | |
306 | SetInputStuff(0); |
307 | SetInputStuff(1); |
308 | SetInputStuffFC(); |
309 | } |
310 | |
311 | void FCEUI_SetInput(int port, int type, void *ptr, int attrib) |
312 | { |
313 | JPAttrib[port]=attrib; |
314 | JPType[port]=type; |
315 | InputDataPtr[port]=ptr; |
316 | SetInputStuff(port); |
317 | } |
318 | |
319 | void FCEUI_DisableFourScore(int s) |
320 | { |
321 | FSDisable=s; |
322 | } |
323 | |
324 | void FCEUI_SetInputFC(int type, void *ptr, int attrib) |
325 | { |
326 | JPAttribFC=attrib; |
327 | JPTypeFC=type; |
328 | InputDataPtrFC=ptr; |
329 | SetInputStuffFC(); |
330 | } |