ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/cf.schmorp.de/server/utils/cfhq2xa.C
(Generate patch)

Comparing cf.schmorp.de/server/utils/cfhq2xa.C (file contents):
Revision 1.1 by root, Sun Apr 1 00:36:35 2007 UTC vs.
Revision 1.15 by root, Fri Nov 18 05:53:42 2016 UTC

1//hq2xa filter 1/*
2//---------------------------------------------------------- 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 *
4 * Copyright (©) 2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
3//Copyright (C) 2003 MaxSt ( maxst@hiend3d.com ) 5 * Copyright (©) 2003 MaxSt <maxst@hiend3d.com>
4//Copyright (C) 2006 Marc Lehmann <pcg@goof.com> 6 *
5// converted to RGBA, cleaned up 7 * Deliantra is free software: you can redistribute it and/or modify it under
6 8 * the terms of the Affero GNU General Public License as published by the
7//This program is free software; you can redistribute it and/or 9 * Free Software Foundation, either version 3 of the License, or (at your
8//modify it under the terms of the GNU Lesser General Public 10 * option) any later version.
9//License as published by the Free Software Foundation; either 11 *
10//version 2.1 of the License, or (at your option) any later version.
11//
12//This program is distributed in the hope that it will be useful, 12 * This program is distributed in the hope that it will be useful,
13//but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15//Lesser General Public License for more details. 15 * GNU General Public License for more details.
16// 16 *
17//You should have received a copy of the GNU Lesser General Public 17 * You should have received a copy of the Affero GNU General Public License
18//License along with this program; if not, write to the Free Software 18 * and the GNU General Public License along with this program. If not, see
19//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 * <http://www.gnu.org/licenses/>.
20 *
21 * The authors can be reached via e-mail to <support@deliantra.net>
22 */
23
24// note: the original code was released under the LGPL version 2.1
20 25
21#include <cstdio> 26#include <cstdio>
22#include <cstring> 27#include <cstring>
23#include <stdlib.h> 28#include <stdlib.h>
24#include <stdint.h> 29#include <stdint.h>
… …
48# define trY 0x30 53# define trY 0x30
49# define trU 0x11 54# define trU 0x11
50# define trV 0x10 55# define trV 0x10
51# define trA 0x40 56# define trA 0x40
52 57
58static int32_t
59udiff (uint32_t a, uint32_t b)
60{
61 return a > b ? a - b : b - a;
62
63}
64
53static inline pixel lerp (pixel c1, int w1, pixel c2, int w2, pixel c3, int w3, int shift) 65static inline pixel lerp (pixel c1, int w1, pixel c2, int w2, pixel c3, int w3, int shift)
54{ 66{
55#if 0 67#if 0
56 if (!(c1 >> Ashift) & Cmask) w1 = 0; 68 if (!(c1 >> Ashift) & Cmask) w1 = 0;
57 if (!(c2 >> Ashift) & Cmask) w2 = 0; 69 if (!(c2 >> Ashift) & Cmask) w2 = 0;
… …
61 int w = w1 + w2 + w3; 73 int w = w1 + w2 + w3;
62 74
63 return ((((c1 >> shift) & Cmask) * w1 + ((c2 >> shift) & Cmask) * w2 + ((c3 >> shift) & Cmask) * w3 + w / 2) / w) << shift; 75 return ((((c1 >> shift) & Cmask) * w1 + ((c2 >> shift) & Cmask) * w2 + ((c3 >> shift) & Cmask) * w3 + w / 2) / w) << shift;
64} 76}
65 77
66inline void lerp (unsigned char *pc, pixel c1, int w1, pixel c2, int w2, pixel c3 = 0, int w3 = 0) 78static inline void lerp (unsigned char *pc, pixel c1, int w1, pixel c2, int w2, pixel c3 = 0, int w3 = 0)
67{ 79{
68 *(pixel *)pc = lerp (c1, w1, c2, w2, c3, w3, Rshift) 80 *(pixel *)pc = lerp (c1, w1, c2, w2, c3, w3, Rshift)
69 | lerp (c1, w1, c2, w2, c3, w3, Gshift) 81 | lerp (c1, w1, c2, w2, c3, w3, Gshift)
70 | lerp (c1, w1, c2, w2, c3, w3, Bshift) 82 | lerp (c1, w1, c2, w2, c3, w3, Bshift)
71 | lerp (c1, w1, c2, w2, c3, w3, Ashift); 83 | lerp (c1, w1, c2, w2, c3, w3, Ashift);
72} 84}
73 85
74inline void Interp1 (unsigned char *pc, pixel c1, pixel c2) 86static inline void Interp1 (unsigned char *pc, pixel c1, pixel c2)
75{ 87{
76 lerp (pc, c1, 3, c2, 1); 88 lerp (pc, c1, 3, c2, 1);
77} 89}
78 90
79inline void Interp2 (unsigned char *pc, pixel c1, pixel c2, pixel c3) 91static inline void Interp2 (unsigned char *pc, pixel c1, pixel c2, pixel c3)
80{ 92{
81 lerp (pc, c1, 2, c2, 1, c3, 1); 93 lerp (pc, c1, 2, c2, 1, c3, 1);
82} 94}
83 95
84inline void Interp5 (unsigned char *pc, pixel c1, pixel c2) 96static inline void Interp5 (unsigned char *pc, pixel c1, pixel c2)
85{ 97{
86 lerp (pc, c1, 1, c2, 1); 98 lerp (pc, c1, 1, c2, 1);
87} 99}
88 100
89inline void Interp6 (unsigned char *pc, pixel c1, pixel c2, pixel c3) 101static inline void Interp6 (unsigned char *pc, pixel c1, pixel c2, pixel c3)
90{ 102{
91 lerp (pc, c1, 5, c2, 2, c3, 1); 103 lerp (pc, c1, 5, c2, 2, c3, 1);
92} 104}
93 105
94inline void Interp7 (unsigned char *pc, pixel c1, pixel c2, pixel c3) 106static inline void Interp7 (unsigned char *pc, pixel c1, pixel c2, pixel c3)
95{ 107{
96 lerp (pc, c1, 6, c2, 1, c3, 1); 108 lerp (pc, c1, 6, c2, 1, c3, 1);
97} 109}
98 110
99inline void Interp9 (unsigned char *pc, pixel c1, pixel c2, pixel c3) 111static inline void Interp9 (unsigned char *pc, pixel c1, pixel c2, pixel c3)
100{ 112{
101 lerp (pc, c1, 2, c2, 3, c2, 3); 113 lerp (pc, c1, 2, c2, 3, c2, 3);
102} 114}
103 115
104inline void Interp10 (unsigned char *pc, pixel c1, pixel c2, pixel c3) 116static inline void Interp10 (unsigned char *pc, pixel c1, pixel c2, pixel c3)
105{ 117{
106 lerp (pc, c1, 14, c2, 1, c3, 1); 118 lerp (pc, c1, 14, c2, 1, c3, 1);
107} 119}
108 120
109#define PIXEL00_0 *((pixel *)(pOut)) = w[5]; 121#define PIXEL00_0 *((pixel *)(pOut)) = w[5];
… …
153#define PIXEL11_61 Interp6(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]); 165#define PIXEL11_61 Interp6(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]);
154#define PIXEL11_70 Interp7(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]); 166#define PIXEL11_70 Interp7(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]);
155#define PIXEL11_90 Interp9(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]); 167#define PIXEL11_90 Interp9(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]);
156#define PIXEL11_100 Interp10(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]); 168#define PIXEL11_100 Interp10(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]);
157 169
158inline pixel RGBAtoYUVA (pixel w) 170static inline pixel RGBAtoYUVA (pixel w)
159{ 171{
160 int r = (w >> Rshift) & Cmask; 172 int r = (w >> Rshift) & Cmask;
161 int g = (w >> Gshift) & Cmask; 173 int g = (w >> Gshift) & Cmask;
162 int b = (w >> Bshift) & Cmask; 174 int b = (w >> Bshift) & Cmask;
163 int a = (w >> Ashift) & Cmask; 175 int a = (w >> Ashift) & Cmask;
… …
170 | (u << Gshift) 182 | (u << Gshift)
171 | (v << Bshift) 183 | (v << Bshift)
172 | (a << Ashift); 184 | (a << Ashift);
173} 185}
174 186
175inline bool Diff (pixel w1, pixel w2) 187static inline bool Diff (pixel w1, pixel w2)
176{ 188{
177 pixel YUV1 = RGBAtoYUVA (w1); 189 pixel YUV1 = RGBAtoYUVA (w1);
178 pixel YUV2 = RGBAtoYUVA (w2); 190 pixel YUV2 = RGBAtoYUVA (w2);
179 191
180 return ((abs (((YUV1 >> Rshift) & Cmask) - ((YUV2 >> Rshift) & Cmask)) > trY) || 192 return ((udiff ((YUV1 >> Rshift) & Cmask, (YUV2 >> Rshift) & Cmask) > trY) ||
181 (abs (((YUV1 >> Gshift) & Cmask) - ((YUV2 >> Gshift) & Cmask)) > trU) || 193 (udiff ((YUV1 >> Gshift) & Cmask, (YUV2 >> Gshift) & Cmask) > trU) ||
182 (abs (((YUV1 >> Bshift) & Cmask) - ((YUV2 >> Bshift) & Cmask)) > trV) || 194 (udiff ((YUV1 >> Bshift) & Cmask, (YUV2 >> Bshift) & Cmask) > trV) ||
183 (abs (((YUV1 >> Ashift) & Cmask) - ((YUV2 >> Ashift) & Cmask)) > trA) ); 195 (udiff ((YUV1 >> Ashift) & Cmask, (YUV2 >> Ashift) & Cmask) > trA) );
184} 196}
185 197
186void 198static void
187hq2x_32 (unsigned char *pIn, unsigned char *pOut, int Xres, int Yres, int BpL, bool wrap) 199hq2x_32 (unsigned char *pIn, unsigned char *pOut, int Xres, int Yres, int BpL, bool wrap)
188{ 200{
189 int i, j, k; 201 int i, j, k;
190 int prevline, nextline; 202 int prevline, nextline;
191 pixel w[10]; 203 pixel w[10];
192 204
193 // +----+----+----+ 205 // +--+--+--+
194 // | | | |
195 // | w1 | w2 | w3 | 206 // |w1|w2|w3|
196 // +----+----+----+ 207 // +--+--+--+
197 // | | | |
198 // | w4 | w5 | w6 | 208 // |w4|w5|w6|
199 // +----+----+----+ 209 // +--+--+--+
200 // | | | |
201 // | w7 | w8 | w9 | 210 // |w7|w8|w9|
202 // +----+----+----+ 211 // +--+--+--+
203 212
204 for (j = 0; j < Yres; j++) 213 for (j = 0; j < Yres; j++)
205 { 214 {
206 if (j > 0) 215 if (j > 0)
207 prevline = -Xres * sizeof (pixel); 216 prevline = -Xres * sizeof (pixel);

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines