1 | //hq2xa filter |
1 | /* |
2 | //---------------------------------------------------------- |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
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3 | * |
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4 | * Copyright (©) 2007,2008,2009,2010,2011,2012 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. |
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11 | // |
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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/>. |
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20 | * |
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21 | * The authors can be reached via e-mail to <support@deliantra.net> |
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22 | */ |
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23 | |
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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> |
… | |
… | |
61 | int w = w1 + w2 + w3; |
66 | int w = w1 + w2 + w3; |
62 | |
67 | |
63 | return ((((c1 >> shift) & Cmask) * w1 + ((c2 >> shift) & Cmask) * w2 + ((c3 >> shift) & Cmask) * w3 + w / 2) / w) << shift; |
68 | return ((((c1 >> shift) & Cmask) * w1 + ((c2 >> shift) & Cmask) * w2 + ((c3 >> shift) & Cmask) * w3 + w / 2) / w) << shift; |
64 | } |
69 | } |
65 | |
70 | |
66 | inline void lerp (unsigned char *pc, pixel c1, int w1, pixel c2, int w2, pixel c3 = 0, int w3 = 0) |
71 | static inline void lerp (unsigned char *pc, pixel c1, int w1, pixel c2, int w2, pixel c3 = 0, int w3 = 0) |
67 | { |
72 | { |
68 | *(pixel *)pc = lerp (c1, w1, c2, w2, c3, w3, Rshift) |
73 | *(pixel *)pc = lerp (c1, w1, c2, w2, c3, w3, Rshift) |
69 | | lerp (c1, w1, c2, w2, c3, w3, Gshift) |
74 | | lerp (c1, w1, c2, w2, c3, w3, Gshift) |
70 | | lerp (c1, w1, c2, w2, c3, w3, Bshift) |
75 | | lerp (c1, w1, c2, w2, c3, w3, Bshift) |
71 | | lerp (c1, w1, c2, w2, c3, w3, Ashift); |
76 | | lerp (c1, w1, c2, w2, c3, w3, Ashift); |
72 | } |
77 | } |
73 | |
78 | |
74 | inline void Interp1 (unsigned char *pc, pixel c1, pixel c2) |
79 | static inline void Interp1 (unsigned char *pc, pixel c1, pixel c2) |
75 | { |
80 | { |
76 | lerp (pc, c1, 3, c2, 1); |
81 | lerp (pc, c1, 3, c2, 1); |
77 | } |
82 | } |
78 | |
83 | |
79 | inline void Interp2 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
84 | static inline void Interp2 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
80 | { |
85 | { |
81 | lerp (pc, c1, 2, c2, 1, c3, 1); |
86 | lerp (pc, c1, 2, c2, 1, c3, 1); |
82 | } |
87 | } |
83 | |
88 | |
84 | inline void Interp5 (unsigned char *pc, pixel c1, pixel c2) |
89 | static inline void Interp5 (unsigned char *pc, pixel c1, pixel c2) |
85 | { |
90 | { |
86 | lerp (pc, c1, 1, c2, 1); |
91 | lerp (pc, c1, 1, c2, 1); |
87 | } |
92 | } |
88 | |
93 | |
89 | inline void Interp6 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
94 | static inline void Interp6 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
90 | { |
95 | { |
91 | lerp (pc, c1, 5, c2, 2, c3, 1); |
96 | lerp (pc, c1, 5, c2, 2, c3, 1); |
92 | } |
97 | } |
93 | |
98 | |
94 | inline void Interp7 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
99 | static inline void Interp7 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
95 | { |
100 | { |
96 | lerp (pc, c1, 6, c2, 1, c3, 1); |
101 | lerp (pc, c1, 6, c2, 1, c3, 1); |
97 | } |
102 | } |
98 | |
103 | |
99 | inline void Interp9 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
104 | static inline void Interp9 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
100 | { |
105 | { |
101 | lerp (pc, c1, 2, c2, 3, c2, 3); |
106 | lerp (pc, c1, 2, c2, 3, c2, 3); |
102 | } |
107 | } |
103 | |
108 | |
104 | inline void Interp10 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
109 | static inline void Interp10 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
105 | { |
110 | { |
106 | lerp (pc, c1, 14, c2, 1, c3, 1); |
111 | lerp (pc, c1, 14, c2, 1, c3, 1); |
107 | } |
112 | } |
108 | |
113 | |
109 | #define PIXEL00_0 *((pixel *)(pOut)) = w[5]; |
114 | #define PIXEL00_0 *((pixel *)(pOut)) = w[5]; |
… | |
… | |
153 | #define PIXEL11_61 Interp6(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]); |
158 | #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]); |
159 | #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]); |
160 | #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]); |
161 | #define PIXEL11_100 Interp10(pOut+BpL + sizeof (pixel), w[5], w[6], w[8]); |
157 | |
162 | |
158 | inline pixel RGBAtoYUVA (pixel w) |
163 | static inline pixel RGBAtoYUVA (pixel w) |
159 | { |
164 | { |
160 | int r = (w >> Rshift) & Cmask; |
165 | int r = (w >> Rshift) & Cmask; |
161 | int g = (w >> Gshift) & Cmask; |
166 | int g = (w >> Gshift) & Cmask; |
162 | int b = (w >> Bshift) & Cmask; |
167 | int b = (w >> Bshift) & Cmask; |
163 | int a = (w >> Ashift) & Cmask; |
168 | int a = (w >> Ashift) & Cmask; |
… | |
… | |
170 | | (u << Gshift) |
175 | | (u << Gshift) |
171 | | (v << Bshift) |
176 | | (v << Bshift) |
172 | | (a << Ashift); |
177 | | (a << Ashift); |
173 | } |
178 | } |
174 | |
179 | |
175 | inline bool Diff (pixel w1, pixel w2) |
180 | static inline bool Diff (pixel w1, pixel w2) |
176 | { |
181 | { |
177 | pixel YUV1 = RGBAtoYUVA (w1); |
182 | pixel YUV1 = RGBAtoYUVA (w1); |
178 | pixel YUV2 = RGBAtoYUVA (w2); |
183 | pixel YUV2 = RGBAtoYUVA (w2); |
179 | |
184 | |
180 | return ((abs (((YUV1 >> Rshift) & Cmask) - ((YUV2 >> Rshift) & Cmask)) > trY) || |
185 | return ((abs (((YUV1 >> Rshift) & Cmask) - ((YUV2 >> Rshift) & Cmask)) > trY) || |
181 | (abs (((YUV1 >> Gshift) & Cmask) - ((YUV2 >> Gshift) & Cmask)) > trU) || |
186 | (abs (((YUV1 >> Gshift) & Cmask) - ((YUV2 >> Gshift) & Cmask)) > trU) || |
182 | (abs (((YUV1 >> Bshift) & Cmask) - ((YUV2 >> Bshift) & Cmask)) > trV) || |
187 | (abs (((YUV1 >> Bshift) & Cmask) - ((YUV2 >> Bshift) & Cmask)) > trV) || |
183 | (abs (((YUV1 >> Ashift) & Cmask) - ((YUV2 >> Ashift) & Cmask)) > trA) ); |
188 | (abs (((YUV1 >> Ashift) & Cmask) - ((YUV2 >> Ashift) & Cmask)) > trA) ); |
184 | } |
189 | } |
185 | |
190 | |
186 | void |
191 | static void |
187 | hq2x_32 (unsigned char *pIn, unsigned char *pOut, int Xres, int Yres, int BpL, bool wrap) |
192 | hq2x_32 (unsigned char *pIn, unsigned char *pOut, int Xres, int Yres, int BpL, bool wrap) |
188 | { |
193 | { |
189 | int i, j, k; |
194 | int i, j, k; |
190 | int prevline, nextline; |
195 | int prevline, nextline; |
191 | pixel w[10]; |
196 | pixel w[10]; |
192 | |
197 | |
193 | // +----+----+----+ |
198 | // +--+--+--+ |
194 | // | | | | |
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195 | // | w1 | w2 | w3 | |
199 | // |w1|w2|w3| |
196 | // +----+----+----+ |
200 | // +--+--+--+ |
197 | // | | | | |
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198 | // | w4 | w5 | w6 | |
201 | // |w4|w5|w6| |
199 | // +----+----+----+ |
202 | // +--+--+--+ |
200 | // | | | | |
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201 | // | w7 | w8 | w9 | |
203 | // |w7|w8|w9| |
202 | // +----+----+----+ |
204 | // +--+--+--+ |
203 | |
205 | |
204 | for (j = 0; j < Yres; j++) |
206 | for (j = 0; j < Yres; j++) |
205 | { |
207 | { |
206 | if (j > 0) |
208 | if (j > 0) |
207 | prevline = -Xres * sizeof (pixel); |
209 | prevline = -Xres * sizeof (pixel); |