c62d2810 |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 2002 Ben Parnell |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation; either version 2 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with this program; if not, write to the Free Software |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | */ |
20 | |
21 | /****************************************/ |
22 | /* FCE Ultra */ |
23 | /* */ |
24 | /* video.c */ |
25 | /* */ |
26 | /* Some generic high-level video */ |
27 | /* related functions. */ |
28 | /****************************************/ |
29 | |
30 | #include <string.h> |
31 | #include <stdio.h> |
32 | #include <stdlib.h> |
33 | |
34 | #include "types.h" |
35 | #include "video.h" |
36 | #include "fce.h" |
37 | #include "svga.h" |
38 | #include "version.h" |
39 | #include "general.h" |
40 | #include "memory.h" |
41 | |
42 | uint8 *XBuf=NULL; |
43 | |
44 | int InitVirtualVideo(void) |
45 | { |
46 | uint32 m; |
47 | |
48 | if(!XBuf) /* Some driver code may allocate XBuf externally. */ |
49 | if(!(XBuf = (uint8*) (FCEU_malloc((256+16) * 240 + 8)))) |
50 | return 0; |
51 | |
52 | if(sizeof(uint8*)==4) |
53 | { |
54 | m=(uint32) XBuf; |
55 | m+=8;m&=0xFFFFFFF8; |
5232c20c |
56 | XBuf=(uint8 *)m; |
c62d2810 |
57 | } |
58 | |
59 | memset(XBuf,128,272*240); |
60 | return 1; |
61 | } |
62 | |
63 | #ifndef ZLIB |
64 | static uint8 pcxheader[128] = |
65 | { |
66 | 10,5,1,8,1,0,1,0,0,1,240,0,2,1,234,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
67 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0,0,0, |
68 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
69 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
70 | }; |
71 | |
72 | int SaveSnapshot(void) |
73 | { |
74 | char *fn=0; |
75 | uint8 *tmp; |
76 | int x,u,y; |
77 | FILE *pp=NULL; |
78 | |
79 | for(u=0;u<999;u++) |
80 | { |
81 | pp=fopen((fn=FCEU_MakeFName(FCEUMKF_SNAP,u,"pcx")),"rb"); |
82 | if(pp==NULL) break; |
83 | fclose(pp); |
84 | } |
85 | |
86 | if(!(pp=fopen(fn,"wb"))) |
87 | return 0; |
88 | |
89 | { |
90 | int totallines=FSettings.LastSLine-FSettings.FirstSLine+1; |
91 | |
92 | tmp=XBuf+8+FSettings.FirstSLine*272; |
93 | |
94 | pcxheader[10]=totallines; |
95 | fwrite(pcxheader,1,128,pp); |
96 | for(y=0;y<totallines;y++) |
97 | { |
98 | for(x=0;x<256;x++) |
99 | { |
100 | if(*tmp>=0xc0) fputc(0xC1,pp); |
101 | fputc(*tmp,pp); |
102 | tmp++; |
103 | } |
104 | tmp+=16; |
105 | } |
106 | } |
107 | |
108 | fputc(0xC,pp); |
109 | for(x=0;x<256;x++) |
110 | { |
111 | uint8 r,g,b; |
112 | |
113 | FCEUD_GetPalette(x,&r,&g,&b); |
114 | fputc(r,pp); |
115 | fputc(g,pp); |
116 | fputc(b,pp); |
117 | } |
118 | fclose(pp); |
119 | |
120 | return u+1; |
121 | } |
122 | |
123 | #else |
124 | |
125 | #include <zlib.h> |
126 | #include "crc32.h" |
127 | |
128 | static int WritePNGChunk(FILE *fp, uint32 size, char *type, uint8 *data) |
129 | { |
130 | uint32 crc; |
131 | |
132 | uint8 tempo[4]; |
133 | |
134 | tempo[0]=size>>24; |
135 | tempo[1]=size>>16; |
136 | tempo[2]=size>>8; |
137 | tempo[3]=size; |
138 | |
139 | if(fwrite(tempo,4,1,fp)!=1) |
140 | return 0; |
141 | if(fwrite(type,4,1,fp)!=1) |
142 | return 0; |
143 | |
144 | if(size) |
145 | if(fwrite(data,1,size,fp)!=size) |
146 | return 0; |
147 | |
5232c20c |
148 | crc=CalcCRC32(0,(uint8 *)type,4); |
c62d2810 |
149 | if(size) |
150 | crc=CalcCRC32(crc,data,size); |
151 | |
152 | tempo[0]=crc>>24; |
153 | tempo[1]=crc>>16; |
154 | tempo[2]=crc>>8; |
155 | tempo[3]=crc; |
156 | |
157 | if(fwrite(tempo,4,1,fp)!=1) |
158 | return 0; |
159 | return 1; |
160 | } |
161 | |
162 | int SaveSnapshot(void) |
163 | { |
164 | char *fn=0; |
165 | int totallines=FSettings.LastSLine-FSettings.FirstSLine+1; |
166 | int x,u,y; |
167 | FILE *pp=NULL; |
168 | uint8 *compmem=NULL; |
169 | uint32 compmemsize=totallines*263+12; |
170 | |
171 | if(!(compmem=FCEU_malloc(compmemsize))) |
172 | return 0; |
173 | |
174 | for(u=0;u<999;u++) |
175 | { |
176 | pp=fopen((fn=FCEU_MakeFName(FCEUMKF_SNAP,u,"png")),"rb"); |
177 | if(pp==NULL) break; |
178 | fclose(pp); |
179 | } |
180 | |
181 | if(!(pp=fopen(fn,"wb"))) |
182 | return 0; |
183 | { |
184 | static uint8 header[8]={137,80,78,71,13,10,26,10}; |
185 | if(fwrite(header,8,1,pp)!=1) |
186 | goto PNGerr; |
187 | } |
188 | |
189 | { |
190 | uint8 chunko[13]; |
191 | |
192 | chunko[0]=chunko[1]=chunko[3]=0; |
193 | chunko[2]=0x1; // Width of 256 |
194 | |
195 | chunko[4]=chunko[5]=chunko[6]=0; |
196 | chunko[7]=totallines; // Height |
197 | |
198 | chunko[8]=8; // bit depth |
199 | chunko[9]=3; // Color type; indexed 8-bit |
200 | chunko[10]=0; // compression: deflate |
201 | chunko[11]=0; // Basic adapative filter set(though none are used). |
202 | chunko[12]=0; // No interlace. |
203 | |
204 | if(!WritePNGChunk(pp,13,"IHDR",chunko)) |
205 | goto PNGerr; |
206 | } |
207 | |
208 | { |
209 | char pdata[256*3]; |
5232c20c |
210 | |
211 | //void FCEUD_GetPalette(uint8 i,uint8 *r, unsigned char *g, unsigned char *b); |
c62d2810 |
212 | for(x=0;x<256;x++) |
5232c20c |
213 | FCEUD_GetPalette(x,(uint8*)(pdata+x*3),(unsigned char*)(pdata+x*3+1),(unsigned char*)(pdata+x*3+2)); |
214 | // static int WritePNGChunk(FILE *fp, uint32 size, char *type, uint8 *data) |
215 | if(!WritePNGChunk(pp,256*3,"PLTE",(uint8 *)pdata)) |
c62d2810 |
216 | goto PNGerr; |
217 | } |
218 | |
219 | { |
220 | uint8 *tmp=XBuf+FSettings.FirstSLine*272+8; |
221 | uint8 *dest,*mal,*mork; |
222 | |
223 | /* If memory couldn't be allocated, just use XBuf(screen contents |
224 | will be corrupted for one frame, though. |
225 | */ |
226 | if(!(mal=mork=dest=malloc((totallines<<8)+totallines))) |
227 | mork=dest=XBuf; |
228 | |
229 | for(y=0;y<totallines;y++) |
230 | { |
231 | *dest=0; // No filter. |
232 | dest++; |
233 | for(x=256;x;x--,tmp++,dest++) |
234 | *dest=*tmp; |
235 | tmp+=16; |
236 | } |
237 | |
238 | if(compress(compmem,&compmemsize,mork,(totallines<<8)+totallines)!=Z_OK) |
239 | { |
240 | if(mal) free(mal); |
241 | goto PNGerr; |
242 | } |
243 | if(mal) free(mal); |
244 | if(!WritePNGChunk(pp,compmemsize,"IDAT",compmem)) |
245 | goto PNGerr; |
246 | } |
247 | if(!WritePNGChunk(pp,0,"IEND",0)) |
248 | goto PNGerr; |
249 | |
250 | free(compmem); |
251 | fclose(pp); |
252 | |
253 | return u+1; |
254 | |
255 | |
256 | PNGerr: |
257 | if(compmem) |
258 | free(compmem); |
259 | if(pp) |
260 | fclose(pp); |
261 | return(0); |
262 | } |
263 | |
264 | #endif |