1 /***********************************************************************************
2 Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
3
4 (c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com),
5 Jerremy Koot (jkoot@snes9x.com)
6
7 (c) Copyright 2002 - 2004 Matthew Kendora
8
9 (c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
10
11 (c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
12
13 (c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
14
15 (c) Copyright 2002 - 2006 funkyass (funkyass@spam.shaw.ca),
16 Kris Bleakley (codeviolation@hotmail.com)
17
18 (c) Copyright 2002 - 2010 Brad Jorsch (anomie@users.sourceforge.net),
19 Nach (n-a-c-h@users.sourceforge.net),
20
21 (c) Copyright 2002 - 2011 zones (kasumitokoduck@yahoo.com)
22
23 (c) Copyright 2006 - 2007 nitsuja
24
25 (c) Copyright 2009 - 2016 BearOso,
26 OV2
27
28
29 BS-X C emulator code
30 (c) Copyright 2005 - 2006 Dreamer Nom,
31 zones
32
33 C4 x86 assembler and some C emulation code
34 (c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
35 Nach,
36 zsKnight (zsknight@zsnes.com)
37
38 C4 C++ code
39 (c) Copyright 2003 - 2006 Brad Jorsch,
40 Nach
41
42 DSP-1 emulator code
43 (c) Copyright 1998 - 2006 _Demo_,
44 Andreas Naive (andreasnaive@gmail.com),
45 Gary Henderson,
46 Ivar (ivar@snes9x.com),
47 John Weidman,
48 Kris Bleakley,
49 Matthew Kendora,
50 Nach,
51 neviksti (neviksti@hotmail.com)
52
53 DSP-2 emulator code
54 (c) Copyright 2003 John Weidman,
55 Kris Bleakley,
56 Lord Nightmare (lord_nightmare@users.sourceforge.net),
57 Matthew Kendora,
58 neviksti
59
60 DSP-3 emulator code
61 (c) Copyright 2003 - 2006 John Weidman,
62 Kris Bleakley,
63 Lancer,
64 z80 gaiden
65
66 DSP-4 emulator code
67 (c) Copyright 2004 - 2006 Dreamer Nom,
68 John Weidman,
69 Kris Bleakley,
70 Nach,
71 z80 gaiden
72
73 OBC1 emulator code
74 (c) Copyright 2001 - 2004 zsKnight,
75 pagefault (pagefault@zsnes.com),
76 Kris Bleakley
77 Ported from x86 assembler to C by sanmaiwashi
78
79 SPC7110 and RTC C++ emulator code used in 1.39-1.51
80 (c) Copyright 2002 Matthew Kendora with research by
81 zsKnight,
82 John Weidman,
83 Dark Force
84
85 SPC7110 and RTC C++ emulator code used in 1.52+
86 (c) Copyright 2009 byuu,
87 neviksti
88
89 S-DD1 C emulator code
90 (c) Copyright 2003 Brad Jorsch with research by
91 Andreas Naive,
92 John Weidman
93
94 S-RTC C emulator code
95 (c) Copyright 2001 - 2006 byuu,
96 John Weidman
97
98 ST010 C++ emulator code
99 (c) Copyright 2003 Feather,
100 John Weidman,
101 Kris Bleakley,
102 Matthew Kendora
103
104 Super FX x86 assembler emulator code
105 (c) Copyright 1998 - 2003 _Demo_,
106 pagefault,
107 zsKnight
108
109 Super FX C emulator code
110 (c) Copyright 1997 - 1999 Ivar,
111 Gary Henderson,
112 John Weidman
113
114 Sound emulator code used in 1.5-1.51
115 (c) Copyright 1998 - 2003 Brad Martin
116 (c) Copyright 1998 - 2006 Charles Bilyue'
117
118 Sound emulator code used in 1.52+
119 (c) Copyright 2004 - 2007 Shay Green (gblargg@gmail.com)
120
121 S-SMP emulator code used in 1.54+
122 (c) Copyright 2016 byuu
123
124 SH assembler code partly based on x86 assembler code
125 (c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
126
127 2xSaI filter
128 (c) Copyright 1999 - 2001 Derek Liauw Kie Fa
129
130 HQ2x, HQ3x, HQ4x filters
131 (c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
132
133 NTSC filter
134 (c) Copyright 2006 - 2007 Shay Green
135
136 GTK+ GUI code
137 (c) Copyright 2004 - 2016 BearOso
138
139 Win32 GUI code
140 (c) Copyright 2003 - 2006 blip,
141 funkyass,
142 Matthew Kendora,
143 Nach,
144 nitsuja
145 (c) Copyright 2009 - 2016 OV2
146
147 Mac OS GUI code
148 (c) Copyright 1998 - 2001 John Stiles
149 (c) Copyright 2001 - 2011 zones
150
151
152 Specific ports contains the works of other authors. See headers in
153 individual files.
154
155
156 Snes9x homepage: http://www.snes9x.com/
157
158 Permission to use, copy, modify and/or distribute Snes9x in both binary
159 and source form, for non-commercial purposes, is hereby granted without
160 fee, providing that this license information and copyright notice appear
161 with all copies and any derived work.
162
163 This software is provided 'as-is', without any express or implied
164 warranty. In no event shall the authors be held liable for any damages
165 arising from the use of this software or it's derivatives.
166
167 Snes9x is freeware for PERSONAL USE only. Commercial users should
168 seek permission of the copyright holders first. Commercial use includes,
169 but is not limited to, charging money for Snes9x or software derived from
170 Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
171 using Snes9x as a promotion for your commercial product.
172
173 The copyright holders request that bug fixes and improvements to the code
174 should be forwarded to them so everyone can benefit from the modifications
175 in future versions.
176
177 Super NES and Super Nintendo Entertainment System are trademarks of
178 Nintendo Co., Limited and its subsidiary companies.
179 ***********************************************************************************/
180
181 #include "snes9x.h"
182 #include "memmap.h"
183 #include "cpuops.h"
184 #include "dma.h"
185 #include "apu/apu.h"
186 #include "fxemu.h"
187 #include "snapshot.h"
188 #ifdef DEBUGGER
189 #include "debug.h"
190 #include "missing.h"
191 #endif
192
193 #include "port.h"
194 #include "filter_epx_unsafe.h"
195
196 /* Allows vertical overlap. We need this to avoid seams when threading */
EPX_16_unsafe(uint8 * srcPtr,uint32 srcPitch,uint8 * dstPtr,uint32 dstPitch,int width,int height)197 void EPX_16_unsafe (uint8 *srcPtr,
198 uint32 srcPitch,
199 uint8 *dstPtr,
200 uint32 dstPitch,
201 int width,
202 int height)
203 {
204 uint16 colorX, colorA, colorB, colorC, colorD;
205 uint16 *sP, *uP, *lP;
206 uint32 *dP1, *dP2;
207 int w;
208
209 for (; height; height--)
210 {
211 sP = (uint16 *) srcPtr;
212 uP = (uint16 *) (srcPtr - srcPitch);
213 lP = (uint16 *) (srcPtr + srcPitch);
214 dP1 = (uint32 *) dstPtr;
215 dP2 = (uint32 *) (dstPtr + dstPitch);
216
217 // left edge
218
219 colorX = *sP;
220 colorC = *++sP;
221 colorB = *lP++;
222 colorD = *uP++;
223
224 if ((colorX != colorC) && (colorB != colorD))
225 {
226 #ifdef __BIG_ENDIAN__
227 *dP1 = (colorX << 16) + ((colorC == colorD) ? colorC : colorX);
228 *dP2 = (colorX << 16) + ((colorB == colorC) ? colorB : colorX);
229 #else
230 *dP1 = colorX + (((colorC == colorD) ? colorC : colorX) << 16);
231 *dP2 = colorX + (((colorB == colorC) ? colorB : colorX) << 16);
232 #endif
233 }
234 else
235 *dP1 = *dP2 = (colorX << 16) + colorX;
236
237 dP1++;
238 dP2++;
239
240 //
241
242 for (w = width - 2; w; w--)
243 {
244 colorA = colorX;
245 colorX = colorC;
246 colorC = *++sP;
247 colorB = *lP++;
248 colorD = *uP++;
249
250 if ((colorA != colorC) && (colorB != colorD))
251 {
252 #ifdef __BIG_ENDIAN__
253 *dP1 = (((colorD == colorA) ? colorD : colorX) << 16) + ((colorC == colorD) ? colorC : colorX);
254 *dP2 = (((colorA == colorB) ? colorA : colorX) << 16) + ((colorB == colorC) ? colorB : colorX);
255 #else
256 *dP1 = ((colorD == colorA) ? colorD : colorX) + (((colorC == colorD) ? colorC : colorX) << 16);
257 *dP2 = ((colorA == colorB) ? colorA : colorX) + (((colorB == colorC) ? colorB : colorX) << 16);
258 #endif
259 }
260 else
261 *dP1 = *dP2 = (colorX << 16) + colorX;
262
263 dP1++;
264 dP2++;
265 }
266
267 // right edge
268
269 colorA = colorX;
270 colorX = colorC;
271 colorB = *lP;
272 colorD = *uP;
273
274 if ((colorA != colorX) && (colorB != colorD))
275 {
276 #ifdef __BIG_ENDIAN__
277 *dP1 = (((colorD == colorA) ? colorD : colorX) << 16) + colorX;
278 *dP2 = (((colorA == colorB) ? colorA : colorX) << 16) + colorX;
279 #else
280 *dP1 = ((colorD == colorA) ? colorD : colorX) + (colorX << 16);
281 *dP2 = ((colorA == colorB) ? colorA : colorX) + (colorX << 16);
282 #endif
283 }
284 else
285 *dP1 = *dP2 = (colorX << 16) + colorX;
286
287 srcPtr += srcPitch;
288 dstPtr += dstPitch << 1;
289 }
290
291 return;
292 }
293
294 #undef AVERAGE_1555
295 #define AVERAGE_1555(el0, el1) (((el0) & (el1)) + ((((el0) ^ (el1)) & 0x7BDE) >> 1))
296
297 /* Blends with edge pixel instead of just using it directly. */
EPX_16_smooth_unsafe(uint8 * srcPtr,uint32 srcPitch,uint8 * dstPtr,uint32 dstPitch,int width,int height)298 void EPX_16_smooth_unsafe (uint8 *srcPtr,
299 uint32 srcPitch,
300 uint8 *dstPtr,
301 uint32 dstPitch,
302 int width,
303 int height)
304 {
305 uint16 colorX, colorA, colorB, colorC, colorD;
306 uint16 *sP, *uP, *lP;
307 uint32 *dP1, *dP2;
308 int w;
309
310 for (; height; height--)
311 {
312 sP = (uint16 *) srcPtr;
313 uP = (uint16 *) (srcPtr - srcPitch);
314 lP = (uint16 *) (srcPtr + srcPitch);
315 dP1 = (uint32 *) dstPtr;
316 dP2 = (uint32 *) (dstPtr + dstPitch);
317
318 // left edge
319
320 colorX = *sP;
321 colorC = *++sP;
322 colorB = *lP++;
323 colorD = *uP++;
324
325 if ((colorX != colorC) && (colorB != colorD))
326 {
327 #ifdef __BIG_ENDIAN__
328 *dP1 = (colorX << 16) + ((colorC == colorD) ? AVERAGE_1555 (colorC, colorX) : colorX);
329 *dP2 = (colorX << 16) + ((colorB == colorC) ? AVERAGE_1555 (colorB, colorX) : colorX);
330 #else
331 *dP1 = colorX + (((colorC == colorD) ? AVERAGE_1555 (colorC, colorX) : colorX) << 16);
332 *dP2 = colorX + (((colorB == colorC) ? AVERAGE_1555 (colorB, colorX) : colorX) << 16);
333 #endif
334 }
335 else
336 *dP1 = *dP2 = (colorX << 16) + colorX;
337
338 dP1++;
339 dP2++;
340
341 //
342
343 for (w = width - 2; w; w--)
344 {
345 colorA = colorX;
346 colorX = colorC;
347 colorC = *++sP;
348 colorB = *lP++;
349 colorD = *uP++;
350
351 if ((colorA != colorC) && (colorB != colorD))
352 {
353 #ifdef __BIG_ENDIAN__
354 *dP1 = (((colorD == colorA) ? AVERAGE_1555 (colorD, colorX) : colorX) << 16) + ((colorC == colorD) ? AVERAGE_1555 (colorC, colorX) : colorX);
355 *dP2 = (((colorA == colorB) ? AVERAGE_1555 (colorA, colorX) : colorX) << 16) + ((colorB == colorC) ? AVERAGE_1555 (colorB, colorX) : colorX);
356 #else
357 *dP1 = ((colorD == colorA) ? AVERAGE_1555 (colorD, colorX) : colorX) + (((colorC == colorD) ? AVERAGE_1555 (colorC, colorX) : colorX) << 16);
358 *dP2 = ((colorA == colorB) ? AVERAGE_1555 (colorA, colorX) : colorX) + (((colorB == colorC) ? AVERAGE_1555 (colorB, colorX) : colorX) << 16);
359 #endif
360 }
361 else
362 *dP1 = *dP2 = (colorX << 16) + colorX;
363
364 dP1++;
365 dP2++;
366 }
367
368 // right edge
369
370 colorA = colorX;
371 colorX = colorC;
372 colorB = *lP;
373 colorD = *uP;
374
375 if ((colorA != colorX) && (colorB != colorD))
376 {
377 #ifdef __BIG_ENDIAN__
378 *dP1 = (((colorD == colorA) ? AVERAGE_1555 (colorD, colorX) : colorX) << 16) + colorX;
379 *dP2 = (((colorA == colorB) ? AVERAGE_1555 (colorA, colorX) : colorX) << 16) + colorX;
380 #else
381 *dP1 = ((colorD == colorA) ? AVERAGE_1555 (colorD, colorX) : colorX) + (colorX << 16);
382 *dP2 = ((colorA == colorB) ? AVERAGE_1555 (colorA, colorX) : colorX) + (colorX << 16);
383 #endif
384 }
385 else
386 *dP1 = *dP2 = (colorX << 16) + colorX;
387
388 srcPtr += srcPitch;
389 dstPtr += dstPitch << 1;
390 }
391
392 return;
393 }
394