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1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
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4 | * Copyright (C) 1998 BERO |
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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> |
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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" |
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31 | #include "movie.h" |
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32 | |
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33 | #include "dprintf.h" |
34 | |
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35 | extern INPUTC *FCEU_InitZapper(int w); |
36 | extern INPUTC *FCEU_InitPowerpad(int w); |
37 | extern INPUTC *FCEU_InitArkanoid(int w); |
38 | |
39 | extern INPUTCFC *FCEU_InitArkanoidFC(void); |
40 | extern INPUTCFC *FCEU_InitSpaceShadow(void); |
41 | extern INPUTCFC *FCEU_InitFKB(void); |
42 | static uint8 joy_readbit[2]; |
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43 | static uint16 joy[4]={0,0,0,0}; |
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44 | |
45 | extern int coinon; |
46 | |
47 | static int FSDisable=0; /* Set to 1 if NES-style four-player adapter is disabled. */ |
48 | static int JPAttrib[2]={0,0}; |
49 | static int JPType[2]={0,0}; |
50 | static void *InputDataPtr[2]; |
51 | |
52 | static int JPAttribFC=0; |
53 | static int JPTypeFC=0; |
54 | static void *InputDataPtrFC; |
55 | |
56 | void (*InputScanlineHook)(uint8 *buf, int line); |
57 | |
58 | static INPUTC DummyJPort={0,0,0,0,0}; |
59 | static INPUTC *JPorts[2]={&DummyJPort,&DummyJPort}; |
60 | static INPUTCFC *FCExp=0; |
61 | |
62 | static uint8 FP_FASTAPASS(1) ReadGPVS(int w) |
63 | { |
64 | uint8 ret=0; |
65 | |
66 | if(joy_readbit[w]>=8) |
67 | ret=1; |
68 | else |
69 | { |
70 | ret = ((joy[w]>>(joy_readbit[w]))&1); |
71 | joy_readbit[w]++; |
72 | } |
73 | return ret; |
74 | } |
75 | |
76 | static uint8 FP_FASTAPASS(1) ReadGP(int w) |
77 | { |
78 | uint8 ret; |
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79 | //if(JoyMulti) |
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80 | //{ |
81 | //ret = ((joy[w]>>(joy_readbit[w]))&1)| |
82 | //(((joy[w]>>(joy_readbit[w]+8))&1)<<1); |
83 | //if(joy_readbit[w]>8) ret=0; |
84 | //} |
85 | ret = ((joy[w]>>(joy_readbit[w]))&1); |
86 | if(FSDisable) |
87 | { |
88 | if(joy_readbit[w]>=8) ret|=1; |
89 | } |
90 | else |
91 | { |
92 | if(joy_readbit[w]==19-w) ret|=1; |
93 | } |
94 | joy_readbit[w]++; |
95 | return ret; |
96 | } |
97 | |
98 | static DECLFR(JPRead) |
99 | { |
100 | uint8 ret=0; |
101 | |
102 | if(JPorts[A&1]->Read) |
103 | ret|=JPorts[A&1]->Read(A&1); |
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104 | |
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105 | if(FCExp) |
106 | if(FCExp->Read) |
107 | ret=FCExp->Read(A&1,ret); |
108 | |
109 | ret|=X.DB&0xC0; |
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110 | dprintf("JPRead %02x", ret); |
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111 | return(ret); |
112 | } |
113 | |
114 | static DECLFW(B4016) |
115 | { |
116 | if(FCExp) |
117 | if(FCExp->Write) |
118 | FCExp->Write(V&7); |
119 | |
120 | if(JPorts[0]->Write) |
121 | JPorts[0]->Write(V&1); |
122 | if(JPorts[1]->Write) |
123 | JPorts[1]->Write(V&1); |
124 | |
125 | if((PSG[0x16]&1) && (!(V&1))) |
126 | { |
127 | /* This strobe code is just for convenience. If it were |
128 | with the code in input / *.c, it would more accurately represent |
129 | what's really going on. But who wants accuracy? ;) |
130 | Seriously, though, this shouldn't be a problem. |
131 | */ |
132 | if(JPorts[0]->Strobe) |
133 | JPorts[0]->Strobe(0); |
134 | if(JPorts[1]->Strobe) |
135 | JPorts[1]->Strobe(1); |
136 | if(FCExp) |
137 | if(FCExp->Strobe) |
138 | FCExp->Strobe(); |
139 | } |
140 | PSG[0x16]=V; |
141 | } |
142 | |
143 | static void FP_FASTAPASS(1) StrobeGP(int w) |
144 | { |
145 | joy_readbit[w]=0; |
146 | } |
147 | |
148 | static INPUTC GPC={ReadGP,0,StrobeGP,0,0,0}; |
149 | static INPUTC GPCVS={ReadGPVS,0,StrobeGP,0,0,0}; |
150 | |
151 | void DrawInput(uint8 *buf) |
152 | { |
153 | int x; |
154 | |
155 | for(x=0;x<2;x++) |
156 | if(JPorts[x]->Draw) |
157 | JPorts[x]->Draw(x,buf,JPAttrib[x]); |
158 | if(FCExp) |
159 | if(FCExp->Draw) |
160 | FCExp->Draw(buf,JPAttribFC); |
161 | } |
162 | |
163 | void UpdateInput(void) |
164 | { |
165 | int x; |
166 | |
167 | for(x=0;x<2;x++) |
168 | { |
169 | switch(JPType[x]) |
170 | { |
171 | case SI_GAMEPAD: |
172 | if(!x) joy[0]=*(uint16 *)InputDataPtr[0]; |
173 | else joy[1]=*(uint16 *)InputDataPtr[1]; |
174 | break; |
175 | default: |
176 | if(JPorts[x]->Update) |
177 | JPorts[x]->Update(x,InputDataPtr[x],JPAttrib[x]); |
178 | break; |
179 | } |
180 | } |
181 | if(FCExp) |
182 | if(FCExp->Update) |
183 | FCExp->Update(InputDataPtrFC,JPAttribFC); |
184 | |
185 | if(FCEUGameInfo.type==GIT_VSUNI) |
186 | { |
187 | uint16 t=joy[0]; |
188 | joy[0]=(joy[0]&0xC)|(joy[1]&0xF3); |
189 | joy[1]=(joy[1]&0xC)|(t&0xF3); |
190 | if(coinon) coinon--; |
191 | } |
192 | #ifdef NETWORK |
193 | if(netplay) NetplayUpdate(&joy[0],&joy[1]); |
194 | #endif |
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195 | if (current < 0) FCEUMOV_AddJoy(joy); |
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196 | FlushCommandQueue(); |
197 | } |
198 | |
199 | static DECLFR(VSUNIRead0) |
200 | { |
201 | uint8 ret=0; |
202 | |
203 | if(JPorts[0]->Read) |
204 | ret|=(JPorts[0]->Read(0))&1; |
205 | |
206 | ret|=(vsdip&3)<<3; |
207 | if(coinon) |
208 | ret|=0x4; |
209 | return ret; |
210 | } |
211 | |
212 | static DECLFR(VSUNIRead1) |
213 | { |
214 | uint8 ret=0; |
215 | |
216 | if(JPorts[1]->Read) |
217 | ret|=(JPorts[1]->Read(1))&1; |
218 | ret|=vsdip&0xFC; |
219 | return ret; |
220 | } |
221 | |
222 | static void SLHLHook(uint8 *buf, int line) |
223 | { |
224 | int x; |
225 | |
226 | for(x=0;x<2;x++) |
227 | if(JPorts[x]->SLHook) |
228 | JPorts[x]->SLHook(x,buf,line); |
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229 | if(FCExp) |
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230 | if(FCExp->SLHook) |
231 | FCExp->SLHook(buf,line); |
232 | } |
233 | |
234 | static void CheckSLHook(void) |
235 | { |
236 | InputScanlineHook=0; |
237 | if(JPorts[0]->SLHook || JPorts[1]->SLHook) |
238 | InputScanlineHook=SLHLHook; |
239 | if(FCExp) |
240 | if(FCExp->SLHook) |
241 | InputScanlineHook=SLHLHook; |
242 | } |
243 | |
244 | static void FASTAPASS(1) SetInputStuff(int x) |
245 | { |
246 | switch(JPType[x]) |
247 | { |
248 | case SI_GAMEPAD: |
249 | if(FCEUGameInfo.type==GIT_VSUNI) |
250 | JPorts[x]=&GPCVS; |
251 | else |
252 | JPorts[x]=&GPC; |
253 | break; |
254 | case SI_ARKANOID:JPorts[x]=FCEU_InitArkanoid(x);break; |
255 | case SI_ZAPPER:JPorts[x]=FCEU_InitZapper(x);break; |
256 | case SI_POWERPAD:JPorts[x]=FCEU_InitPowerpad(x);break; |
257 | case SI_NONE:JPorts[x]=&DummyJPort;break; |
258 | } |
259 | |
260 | CheckSLHook(); |
261 | } |
262 | |
263 | static uint8 F4ReadBit[2]; |
264 | static void StrobeFami4(void) |
265 | { |
266 | F4ReadBit[0]=F4ReadBit[1]=0; |
267 | } |
268 | |
269 | static uint8 FP_FASTAPASS(2) ReadFami4(int w, uint8 ret) |
270 | { |
271 | ret&=1; |
272 | |
273 | ret |= ((joy[w]>>(F4ReadBit[w]+8))&1)<<1; |
274 | if(F4ReadBit[w]>=8) ret|=2; |
275 | else F4ReadBit[w]++; |
276 | |
277 | return(ret); |
278 | } |
279 | |
280 | static INPUTCFC FAMI4C={ReadFami4,0,StrobeFami4,0,0,0}; |
281 | static void SetInputStuffFC(void) |
282 | { |
283 | switch(JPTypeFC) |
284 | { |
285 | case SIFC_NONE:FCExp=0;break; |
286 | case SIFC_ARKANOID:FCExp=FCEU_InitArkanoidFC();break; |
287 | case SIFC_SHADOW:FCExp=FCEU_InitSpaceShadow();break; |
288 | case SIFC_4PLAYER:FCExp=&FAMI4C;memset(&F4ReadBit,0,sizeof(F4ReadBit));break; |
289 | case SIFC_FKB:FCExp=FCEU_InitFKB();break; |
290 | } |
291 | CheckSLHook(); |
292 | } |
293 | |
294 | // VS Unisystem code called after SetInputMap() hooks B4016. Need to |
295 | // rewrite code to make this more sane? |
296 | |
297 | void InitializeInput(void) |
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298 | { |
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299 | memset(joy_readbit,0,sizeof(joy_readbit)); |
300 | memset(joy,0,sizeof(joy)); |
301 | |
302 | if(FCEUGameInfo.type==GIT_VSUNI) |
303 | { |
304 | SetReadHandler(0x4016,0x4016,VSUNIRead0); |
305 | SetReadHandler(0x4017,0x4017,VSUNIRead1); |
306 | } |
307 | else |
308 | SetReadHandler(0x4016,0x4017,JPRead); |
309 | SetWriteHandler(0x4016,0x4016,B4016); |
310 | |
311 | SetInputStuff(0); |
312 | SetInputStuff(1); |
313 | SetInputStuffFC(); |
314 | } |
315 | |
316 | void FCEUI_SetInput(int port, int type, void *ptr, int attrib) |
317 | { |
318 | JPAttrib[port]=attrib; |
319 | JPType[port]=type; |
320 | InputDataPtr[port]=ptr; |
321 | SetInputStuff(port); |
322 | } |
323 | |
324 | void FCEUI_DisableFourScore(int s) |
325 | { |
326 | FSDisable=s; |
327 | } |
328 | |
329 | void FCEUI_SetInputFC(int type, void *ptr, int attrib) |
330 | { |
331 | JPAttribFC=attrib; |
332 | JPTypeFC=type; |
333 | InputDataPtrFC=ptr; |
334 | SetInputStuffFC(); |
335 | } |