4x scaler patch \ VOGONS

4x scaler patch

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First post, by Tobis87

Posted on 2010-01-19, 18:39

Tobis87 Offline

Rank Newbie

Rank: Newbie
Posts: 14
Joined: 2010-01-19, 18:04

Hi,

I tried to get some 4x scalers working, but as Wikipedia says: "The AdvMAME4×/Scale4× algorithm is just EPX applied twice to get 4× resolution."

My problem is, that I don't know how to let dosbox run a scaler twice. So I tried to get as near as possible to the advmame4x scaler in one pass.

I know it is not official, but X-wing already looks great with it! 😁

Update: Screenshots attached

Update2: Patch simplified

1diff -urN dosbox-0.73/src/dosbox.cpp dosbox-0.73/src/dosbox.cpp
2--- dosbox-0.73/src/dosbox.cpp	2009-05-25 20:44:46.000000000 +0200
3+++ dosbox-0.73/src/dosbox.cpp	2010-01-19 11:56:25.387344693 +0100
4@@ -378,9 +378,9 @@
5 	Pstring = Pmulti->GetSection()->Add_string("type",Property::Changeable::Always,"normal2x");
6 
7 	const char *scalers[] = { 
8-		"none", "normal2x", "normal3x",
9+		"none", "normal2x", "normal3x", "normal4x",
10 #if RENDER_USE_ADVANCED_SCALERS>2
11-		"advmame2x", "advmame3x", "advinterp2x", "advinterp3x", "hq2x", "hq3x", "2xsai", "super2xsai", "supereagle",
12+		"advmame2x", "advmame3x", "advmame4x", "advinterp2x", "advinterp3x", "advinterp4x", "hq2x", "hq3x", "2xsai", "super2xsai", "supereagle",
13 #endif
14 #if RENDER_USE_ADVANCED_SCALERS>0
15 		"tv2x", "tv3x", "rgb2x", "rgb3x", "scan2x", "scan3x",
16diff -urN dosbox-0.73/src/gui/render.cpp dosbox-0.73/src/gui/render.cpp
17--- dosbox-0.73/src/gui/render.cpp	2009-05-25 20:44:46.000000000 +0200
18+++ dosbox-0.73/src/gui/render.cpp	2010-01-19 11:58:59.469013482 +0100
19@@ -288,6 +288,8 @@
20 			simpleBlock = &ScaleNormal2x;
21 		else if (render.scale.size == 3)
22 			simpleBlock = &ScaleNormal3x;
23+		else if (render.scale.size == 4)
24+			simpleBlock = &ScaleNormal4x;
25 		else
26 			simpleBlock = &ScaleNormal1x;
27 		/* Maybe override them */
28@@ -299,12 +301,16 @@
29 				complexBlock = &ScaleAdvInterp2x;
30 			else if (render.scale.size == 3)
31 				complexBlock = &ScaleAdvInterp3x;
32+			else if (render.scale.size == 4)
33+				complexBlock = &ScaleAdvInterp4x;
34 			break;
35 		case scalerOpAdvMame:
36 			if (render.scale.size == 2)
37 				complexBlock = &ScaleAdvMame2x;
38 			else if (render.scale.size == 3)
39 				complexBlock = &ScaleAdvMame3x;
40+			else if (render.scale.size == 4)
41+				complexBlock = &ScaleAdvMame4x;
42 			break;
43 		case scalerOpHQ:
44 			if (render.scale.size == 2)
45@@ -597,11 +603,14 @@
46 	if (scaler == "none") { render.scale.op = scalerOpNormal;render.scale.size = 1; }
47 	else if (scaler == "normal2x") { render.scale.op = scalerOpNormal;render.scale.size = 2; }
48 	else if (scaler == "normal3x") { render.scale.op = scalerOpNormal;render.scale.size = 3; }
49+	else if (scaler == "normal4x") { render.scale.op = scalerOpNormal;render.scale.size = 4; }
50 #if RENDER_USE_ADVANCED_SCALERS>2
51 	else if (scaler == "advmame2x") { render.scale.op = scalerOpAdvMame;render.scale.size = 2; }
52 	else if (scaler == "advmame3x") { render.scale.op = scalerOpAdvMame;render.scale.size = 3; }
53+	else if (scaler == "advmame4x") { render.scale.op = scalerOpAdvMame;render.scale.size = 4; }
54 	else if (scaler == "advinterp2x") { render.scale.op = scalerOpAdvInterp;render.scale.size = 2; }
55 	else if (scaler == "advinterp3x") { render.scale.op = scalerOpAdvInterp;render.scale.size = 3; }
56+	else if (scaler == "advinterp4x") { render.scale.op = scalerOpAdvInterp;render.scale.size = 4; }
57 	else if (scaler == "hq2x") { render.scale.op = scalerOpHQ;render.scale.size = 2; }
58 	else if (scaler == "hq3x") { render.scale.op = scalerOpHQ;render.scale.size = 3; }
59 	else if (scaler == "2xsai") { render.scale.op = scalerOpSaI;render.scale.size = 2; }
60diff -urN dosbox-0.73/src/gui/render_loops.h dosbox-0.73/src/gui/render_loops.h

…Show last 334 lines

61--- dosbox-0.73/src/gui/render_loops.h	2009-05-25 20:44:46.000000000 +0200
62+++ dosbox-0.73/src/gui/render_loops.h	2010-01-19 11:55:13.982380988 +0100
63@@ -51,6 +51,9 @@
64 #if (SCALERHEIGHT > 2) 
65 		PTYPE * line2;
66 #endif
67+#if (SCALERHEIGHT > 3)
68+ 		PTYPE * line3;
69+#endif
70 		/* Clear this block being dirty marker */
71 		const Bitu changeType = changed[b];
72 		changed[b] = 0;
73@@ -66,6 +69,9 @@
74 #if (SCALERHEIGHT > 2) 
75 			line2 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 2);
76 #endif
77+#if (SCALERHEIGHT > 3)
78+			line3 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 3);
79+#endif
80 			SCALERFUNC;
81 			line0 += SCALERWIDTH * SCALER_BLOCKSIZE;
82 			fc += SCALER_BLOCKSIZE;
83@@ -77,6 +83,9 @@
84 #if (SCALERHEIGHT > 2) 
85 			line2 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 2);
86 #endif
87+#if (SCALERHEIGHT > 3)
88+ 			line3 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 3);
89+#endif
90 			SCALERFUNC;
91 		case SCALE_RIGHT:
92 #if (SCALERHEIGHT > 1) 			
93@@ -85,6 +94,9 @@
94 #if (SCALERHEIGHT > 2) 
95 			line2 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 2);
96 #endif
97+#if (SCALERHEIGHT > 3)
98+			line3 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 3);
99+#endif
100 			line0 += SCALERWIDTH * (SCALER_BLOCKSIZE -1);
101 #if (SCALERHEIGHT > 1) 
102 			line1 += SCALERWIDTH * (SCALER_BLOCKSIZE -1);
103@@ -92,6 +104,9 @@
104 #if (SCALERHEIGHT > 2) 
105 			line2 += SCALERWIDTH * (SCALER_BLOCKSIZE -1);
106 #endif
107+#if (SCALERHEIGHT > 3)
108+			line3 += SCALERWIDTH * (SCALER_BLOCKSIZE -1);
109+#endif
110 			fc += SCALER_BLOCKSIZE -1;
111 			SCALERFUNC;
112 			line0 += SCALERWIDTH;
113@@ -105,6 +120,9 @@
114 #if (SCALERHEIGHT > 2) 
115 			line2 = WC[1];
116 #endif
117+#if (SCALERHEIGHT > 3)
118+			line3 = WC[2];
119+#endif
120 #else
121 #if (SCALERHEIGHT > 1) 
122 			line1 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch);
123@@ -112,6 +130,9 @@
124 #if (SCALERHEIGHT > 2) 
125 			line2 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 2);
126 #endif
127+#if (SCALERHEIGHT > 3)
128+			line3 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 3);
129+#endif
130 #endif //defined(SCALERLINEAR)
131 			for (Bitu i = 0; i<SCALER_BLOCKSIZE;i++) {
132 				SCALERFUNC;
133@@ -122,6 +143,9 @@
134 #if (SCALERHEIGHT > 2) 
135 				line2 += SCALERWIDTH;
136 #endif
137+#if (SCALERHEIGHT > 3)
138+				line3 += SCALERWIDTH;
139+#endif
140 				fc++;
141 			}
142 #if defined(SCALERLINEAR)
143@@ -131,6 +155,9 @@
144 #if (SCALERHEIGHT > 2) 
145 			BituMove((Bit8u*)(&line0[-SCALER_BLOCKSIZE*SCALERWIDTH])+render.scale.outPitch*2,WC[1], SCALER_BLOCKSIZE *SCALERWIDTH*PSIZE);
146 #endif
147+#if (SCALERHEIGHT > 3)
148+			BituMove((Bit8u*)(&line0[-SCALER_BLOCKSIZE*SCALERWIDTH])+render.scale.outPitch*3,WC[2], SCALER_BLOCKSIZE *SCALERWIDTH*PSIZE);
149+#endif
150 #endif //defined(SCALERLINEAR)
151 			break;
152 		}
153diff -urN dosbox-0.73/src/gui/render_scalers.cpp dosbox-0.73/src/gui/render_scalers.cpp
154--- dosbox-0.73/src/gui/render_scalers.cpp	2009-05-25 20:44:46.000000000 +0200
155+++ dosbox-0.73/src/gui/render_scalers.cpp	2010-01-19 12:02:29.860881690 +0100
156@@ -256,6 +256,23 @@
157 {	Normal3x_8_8_R,		Normal3x_9_15_R ,	Normal3x_9_16_R ,	Normal3x_9_32_R }
158 }};
159 
160+ ScalerSimpleBlock_t ScaleNormal4x = {
161+	"Normal4x",
162+	GFX_CAN_8|GFX_CAN_15|GFX_CAN_16|GFX_CAN_32,
163+	4,4,{
164+{   Normal4x_8_8_L,      Normal4x_8_15_L ,   Normal4x_8_16_L ,   Normal4x_8_32_L },
165+{                0,      Normal4x_15_15_L,   Normal4x_15_16_L,   Normal4x_15_32_L},
166+{                0,      Normal4x_16_15_L,   Normal4x_16_16_L,   Normal4x_16_32_L},
167+{                0,      Normal4x_32_15_L,   Normal4x_32_16_L,   Normal4x_32_32_L},
168+{   Normal4x_8_8_L,      Normal4x_9_15_L ,   Normal4x_9_16_L ,   Normal4x_9_32_L }
169+},{
170+{   Normal4x_8_8_R,      Normal4x_8_15_R ,   Normal4x_8_16_R ,   Normal4x_8_32_R },
171+{                0,      Normal4x_15_15_R,   Normal4x_15_16_R,   Normal4x_15_32_R},
172+{                0,      Normal4x_16_15_R,   Normal4x_16_16_R,   Normal4x_16_32_R},
173+{                0,      Normal4x_32_15_R,   Normal4x_32_16_R,   Normal4x_32_32_R},
174+{   Normal4x_8_8_R,      Normal4x_9_15_R ,   Normal4x_9_16_R ,   Normal4x_9_32_R }
175+}};
176+
177 #if RENDER_USE_ADVANCED_SCALERS>0
178 ScalerSimpleBlock_t ScaleTV2x = {
179 	"TV2x",
180@@ -380,6 +397,14 @@
181 {	AdvMame3x_8_R,AdvMame3x_16_R,AdvMame3x_16_R,AdvMame3x_32_R}
182 };
183 
184+ScalerComplexBlock_t ScaleAdvMame4x = {
185+	"AdvMame4x",
186+	GFX_CAN_8|GFX_CAN_15|GFX_CAN_16|GFX_CAN_32,
187+	4,4,
188+{	AdvMame4x_8_L,AdvMame4x_16_L,AdvMame4x_16_L,AdvMame4x_32_L},
189+{	AdvMame4x_8_R,AdvMame4x_16_R,AdvMame4x_16_R,AdvMame4x_32_R}
190+};
191+
192 /* These need specific 15bpp versions */
193 ScalerComplexBlock_t ScaleHQ2x ={
194 	"HQ2x",
195@@ -437,4 +462,12 @@
196 {	0,AdvInterp3x_15_R,AdvInterp3x_16_R,AdvInterp3x_32_R}
197 };
198 
199+ScalerComplexBlock_t ScaleAdvInterp4x = {
200+	"AdvInterp4x",
201+	GFX_CAN_15|GFX_CAN_16|GFX_CAN_32|GFX_RGBONLY,
202+	4,4,
203+{	0,AdvInterp4x_15_L,AdvInterp4x_16_L,AdvInterp4x_32_L},
204+{	0,AdvInterp4x_15_R,AdvInterp4x_16_R,AdvInterp4x_32_R}
205+};
206+
207 #endif
208diff -urN dosbox-0.73/src/gui/render_scalers.h dosbox-0.73/src/gui/render_scalers.h
209--- dosbox-0.73/src/gui/render_scalers.h	2009-05-25 20:44:46.000000000 +0200
210+++ dosbox-0.73/src/gui/render_scalers.h	2010-01-19 12:03:28.170822333 +0100
211@@ -113,6 +113,7 @@
212 extern ScalerSimpleBlock_t ScaleNormalDh;
213 extern ScalerSimpleBlock_t ScaleNormal2x;
214 extern ScalerSimpleBlock_t ScaleNormal3x;
215+extern ScalerSimpleBlock_t ScaleNormal4x;
216 #if RENDER_USE_ADVANCED_SCALERS>0
217 extern ScalerSimpleBlock_t ScaleTV2x;
218 extern ScalerSimpleBlock_t ScaleTV3x;
219@@ -130,8 +131,10 @@
220 extern ScalerComplexBlock_t ScaleSuperEagle;
221 extern ScalerComplexBlock_t ScaleAdvMame2x;
222 extern ScalerComplexBlock_t ScaleAdvMame3x;
223+extern ScalerComplexBlock_t ScaleAdvMame4x;
224 extern ScalerComplexBlock_t ScaleAdvInterp2x;
225 extern ScalerComplexBlock_t ScaleAdvInterp3x;
226+extern ScalerComplexBlock_t ScaleAdvInterp4x;
227 #endif
228 #if RENDER_USE_ADVANCED_SCALERS>1
229 extern ScalerLineBlock_t ScalerCache;
230diff -urN dosbox-0.73/src/gui/render_simple.h dosbox-0.73/src/gui/render_simple.h
231--- dosbox-0.73/src/gui/render_simple.h	2009-05-27 11:15:41.000000000 +0200
232+++ dosbox-0.73/src/gui/render_simple.h	2010-01-19 11:55:13.982380988 +0100
233@@ -68,6 +68,9 @@
234 #if (SCALERHEIGHT > 2) 
235 			PTYPE *line2 = WC[1];
236 #endif
237+#if (SCALERHEIGHT > 3)
238+			PTYPE *line3 = WC[2];
239+#endif
240 #else
241 #if (SCALERHEIGHT > 1) 
242 		PTYPE *line1 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch);
243@@ -75,6 +78,9 @@
244 #if (SCALERHEIGHT > 2) 
245 		PTYPE *line2 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 2);
246 #endif
247+#if (SCALERHEIGHT > 3)
248+		PTYPE *line3 = (PTYPE *)(((Bit8u*)line0)+ render.scale.outPitch * 3);
249+#endif
250 #endif //defined(SCALERLINEAR)
251 			hadChange = 1;
252 			for (Bitu i = x > 32 ? 32 : x;i>0;i--,x--) {
253@@ -90,6 +96,9 @@
254 #if (SCALERHEIGHT > 2) 
255 				line2 += SCALERWIDTH;
256 #endif
257+#if (SCALERHEIGHT > 3)
258+				line3 += SCALERWIDTH;
259+#endif
260 			}
261 #if defined(SCALERLINEAR)
262 #if (SCALERHEIGHT > 1)
263@@ -99,6 +108,9 @@
264 #if (SCALERHEIGHT > 2) 
265 			BituMove(((Bit8u*)line0)-copyLen+render.scale.outPitch*2,WC[1], copyLen );
266 #endif
267+#if (SCALERHEIGHT > 3)
268+			BituMove(((Bit8u*)line0)-copyLen+render.scale.outPitch*3,WC[2], copyLen );
269+#endif
270 #endif //defined(SCALERLINEAR)
271 		}
272 	}
273diff -urN dosbox-0.73/src/gui/render_templates.h dosbox-0.73/src/gui/render_templates.h
274--- dosbox-0.73/src/gui/render_templates.h	2009-05-25 20:44:46.000000000 +0200
275+++ dosbox-0.73/src/gui/render_templates.h	2010-01-19 13:52:18.048640601 +0100
276@@ -257,6 +257,32 @@
277 #undef SCALERHEIGHT
278 #undef SCALERFUNC
279 
280+#define SCALERNAME		Normal4x
281+#define SCALERWIDTH		4
282+#define SCALERHEIGHT	4
283+#define SCALERFUNC								\
284+	line0[0] = P;								\
285+	line0[1] = P;								\
286+	line0[2] = P;								\
287+	line0[3] = P;								\
288+	line1[0] = P;								\
289+	line1[1] = P;								\
290+	line1[2] = P;								\
291+	line1[3] = P;								\
292+	line2[0] = P;								\
293+	line2[1] = P;								\
294+	line2[2] = P;								\
295+	line2[3] = P;								\
296+	line3[0] = P;								\
297+	line3[1] = P;								\
298+	line3[2] = P;								\
299+	line3[3] = P;
300+#include "render_simple.h"
301+#undef SCALERNAME
302+#undef SCALERWIDTH
303+#undef SCALERHEIGHT
304+#undef SCALERFUNC
305+
306 #define SCALERNAME		NormalDw
307 #define SCALERWIDTH		2
308 #define SCALERHEIGHT	1
309@@ -508,6 +534,44 @@
310 #undef SCALERHEIGHT
311 #undef SCALERFUNC
312 
313+#define SCALERNAME		AdvInterp4x
314+#define SCALERWIDTH		4
315+#define SCALERHEIGHT	4
316+#define SCALERFUNC																			\
317+	if ((C1 != C7) && (C3 != C5)) {														\
318+		line0[0] = C3 == C1 ? interp_w2(C3,C4,5U,3U) : C4;								\
319+		line0[3] = C1 == C5 ? interp_w2(C5,C4,5U,3U) : C4;								\
320+		line1[1] = C4;																	\
321+		line1[2] = C4;																	\
322+		line2[1] = C4;																	\
323+		line2[2] = C4;																	\
324+		line3[0] = C3 == C7 ? interp_w2(C3,C4,5U,3U) : C4;								\
325+		line3[3] = C7 == C5 ? interp_w2(C5,C4,5U,3U) : C4;								\
326+		line0[1] = line0[0];															\
327+		line0[2] = line0[3];															\
328+		line1[0] = line0[0];															\
329+		line1[3] = line0[3];															\
330+		line2[0] = line3[0];															\
331+		line2[3] = line3[3];															\
332+		line3[1] = line3[0];															\
333+		line3[2] = line3[3];															\
334+		line0[0] = line0[0] != C4 ? interp_w2(C3,line0[0],5U,3U) : line0[0];			\
335+		line0[3] = line0[3] != C4 ? interp_w2(C5,line0[3],5U,3U) : line0[3];			\
336+		line3[0] = line3[0] != C4 ? interp_w2(C3,line3[0],5U,3U) : line3[0];			\
337+		line3[3] = line3[3] != C4 ? interp_w2(C5,line3[3],5U,3U) : line3[3];			\
338+	} else {																			\
339+		line0[0] = line0[1] = line0[2] = line0[3] = C4;									\
340+		line1[0] = line1[1] = line1[2] = line1[3] = C4;									\
341+		line2[0] = line2[1] = line2[2] = line2[3] = C4;									\
342+		line3[0] = line3[1] = line3[2] = line3[3] = C4;									\
343+	}
344+
345+#include "render_loops.h"
346+#undef SCALERNAME
347+#undef SCALERWIDTH
348+#undef SCALERHEIGHT
349+#undef SCALERFUNC
350+
351 #endif // #if (DBPP > 8)
352 
353 #define SCALERNAME		AdvMame2x
354@@ -555,6 +619,39 @@
355 #undef SCALERHEIGHT
356 #undef SCALERFUNC
357 
358+#define SCALERNAME		AdvMame4x
359+#define SCALERWIDTH		4
360+#define SCALERHEIGHT	4
361+#define SCALERFUNC												\
362+	if ((C1 != C7) && (C3 != C5)) {								\
363+		line0[0] = C3 == C1 ?  C3 : C4;							\
364+		line0[3] = C5 == C1 ?  C5 : C4;							\
365+		line1[1] = C4;											\
366+		line1[2] = C4;											\
367+		line2[1] = C4;											\
368+		line2[2] = C4;											\
369+		line3[0] = C3 == C7 ?  C3 : C4;							\
370+		line3[3] = C5 == C7 ?  C5 : C4;							\
371+		line0[1] = line0[0];									\
372+		line0[2] = line0[3];									\
373+		line1[0] = line0[0];									\
374+		line1[3] = line0[3];									\
375+		line2[0] = line3[0];									\
376+		line2[3] = line3[3];									\
377+		line3[1] = line3[0];									\
378+		line3[2] = line3[3];									\
379+	} else {													\
380+		line0[0] = line0[1] = line0[2] = line0[3] = C4;			\
381+		line1[0] = line1[1] = line1[2] = line1[3] = C4;			\
382+		line2[0] = line2[1] = line2[2] = line2[3] = C4;			\
383+		line3[0] = line3[1] = line3[2] = line3[3] = C4;			\
384+	}
385+
386+#include "render_loops.h"
387+#undef SCALERNAME
388+#undef SCALERWIDTH
389+#undef SCALERHEIGHT
390+#undef SCALERFUNC
391 
392 #endif // (SBPP == DBPP) && !defined (CACHEWITHPAL)
393

Last edited by Tobis87 on 2011-09-25, 21:23. Edited 5 times in total.

Reply 1 of 6, by Tobis87

Posted on 2010-01-26, 13:10

Tobis87 Offline

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Rank: Newbie
Posts: 14
Joined: 2010-01-19, 18:04

In order to see what is still missing, I also attach screenshots of Monkey Island 2 with Dosbox scaled by Advinterp4x and ScummVM scaled by Advmame4x (also unofficial).

Reply 2 of 6, by Harekiet

Posted on 2010-01-26, 13:43

Harekiet Offline

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Rank: DOSBox Author
Posts: 1050
Joined: 2002-07-01, 07:14
Location: Fryslan

your patch made everything german, this can't be good!

Reply 3 of 6, by wd

Posted on 2010-01-26, 14:33

wd Offline

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Rank: DOSBox Author
Posts: 10813
Joined: 2003-12-03, 21:23

german c++ -> g++!

Reply 4 of 6, by Tobis87

Posted on 2010-01-26, 16:47

Tobis87 Offline

Rank Newbie

Rank: Newbie
Posts: 14
Joined: 2010-01-19, 18:04

your patch made everything german, this can't be good!

If my patch could make everything german, I would call it a feature. 😉

The algorithm is quite bloated, because I did find it mostly by messing around. I'm still surprised that it works that good.
Maybe someone has an idea how to simplify it.

I think nobody wants to implement advmame4x in their projects, because shortly after this is done, someone would want advmame8x for his home theater projector to be implemented.
But I like the idea from the wish list, of having a multiplier for the scaler setting:

1# scaler -- Scaler used to enlarge/enhance low resolution modes.
2# Supported are none,normal2x,advmame2x,advmame3x,advinterp2x,interp2x,tv2x.
3
4scaler=advinterp2x 
5multiplier=2

Where the multiplier would be the number of times the scaler is applied.
Is something like this already planed?

Last edited by Tobis87 on 2010-01-26, 18:01. Edited 1 time in total.

Reply 5 of 6, by Qbix

Posted on 2010-01-26, 16:54

Qbix Offline

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Rank: DOSBox Author
Posts: 11324
Joined: 2002-11-27, 14:50
Location: Fryslan

I thought that advmame4x was simply 2 times advmame2x applied

Water flows down the stream
How to ask questions the smart way!

Reply 6 of 6, by Tobis87

Posted on 2010-01-26, 17:58

Tobis87 Offline

Rank Newbie

Rank: Newbie
Posts: 14
Joined: 2010-01-19, 18:04

I thought that advmame4x was simply 2 times advmame2x applied

Yes, that's true.
But I don't know how to let dosbox apply a scaler 2 times.
So I tried to get as near as possible to the advmame4x.

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