1 | /* |
1 | /* |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | * |
3 | * |
4 | * Copyright (©) 2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
4 | * Copyright (©) 2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (©) 2003,2007 MaxSt <maxst@hiend3d.com> |
5 | * Copyright (©) 2003 MaxSt <maxst@hiend3d.com> |
6 | * |
6 | * |
7 | * Deliantra is free software: you can redistribute it and/or modify it under |
7 | * Deliantra is free software: you can redistribute it and/or modify it under |
8 | * the terms of the Affero GNU General Public License as published by the |
8 | * the terms of the Affero GNU General Public License as published by the |
9 | * Free Software Foundation, either version 3 of the License, or (at your |
9 | * Free Software Foundation, either version 3 of the License, or (at your |
10 | * option) any later version. |
10 | * option) any later version. |
11 | * |
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 |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU 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 Affero GNU General Public License |
17 | * You should have received a copy of the Affero GNU General Public License |
18 | * and the GNU General Public License along with this program. If not, see |
18 | * and the GNU General Public License along with this program. If not, see |
19 | * <http://www.gnu.org/licenses/>. |
19 | * <http://www.gnu.org/licenses/>. |
20 | * |
20 | * |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
22 | */ |
22 | */ |
23 | |
23 | |
24 | // note: the original code was released under the LGPL version 2.1 |
24 | // note: the original code was released under the LGPL version 2.1 |
25 | |
25 | |
… | |
… | |
53 | # define trY 0x30 |
53 | # define trY 0x30 |
54 | # define trU 0x11 |
54 | # define trU 0x11 |
55 | # define trV 0x10 |
55 | # define trV 0x10 |
56 | # define trA 0x40 |
56 | # define trA 0x40 |
57 | |
57 | |
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58 | static int32_t |
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59 | udiff (uint32_t a, uint32_t b) |
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60 | { |
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61 | return a > b ? a - b : b - a; |
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62 | |
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63 | } |
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64 | |
58 | static inline pixel lerp (pixel c1, int w1, pixel c2, int w2, pixel c3, int w3, int shift) |
65 | static inline pixel lerp (pixel c1, int w1, pixel c2, int w2, pixel c3, int w3, int shift) |
59 | { |
66 | { |
60 | #if 0 |
67 | #if 0 |
61 | if (!(c1 >> Ashift) & Cmask) w1 = 0; |
68 | if (!(c1 >> Ashift) & Cmask) w1 = 0; |
62 | if (!(c2 >> Ashift) & Cmask) w2 = 0; |
69 | if (!(c2 >> Ashift) & Cmask) w2 = 0; |
… | |
… | |
66 | int w = w1 + w2 + w3; |
73 | int w = w1 + w2 + w3; |
67 | |
74 | |
68 | 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; |
69 | } |
76 | } |
70 | |
77 | |
71 | inline void lerp (unsigned char *pc, pixel c1, int w1, pixel c2, int w2, pixel c3 = 0, int w3 = 0) |
78 | static inline void lerp (unsigned char *pc, pixel c1, int w1, pixel c2, int w2, pixel c3 = 0, int w3 = 0) |
72 | { |
79 | { |
73 | *(pixel *)pc = lerp (c1, w1, c2, w2, c3, w3, Rshift) |
80 | *(pixel *)pc = lerp (c1, w1, c2, w2, c3, w3, Rshift) |
74 | | lerp (c1, w1, c2, w2, c3, w3, Gshift) |
81 | | lerp (c1, w1, c2, w2, c3, w3, Gshift) |
75 | | lerp (c1, w1, c2, w2, c3, w3, Bshift) |
82 | | lerp (c1, w1, c2, w2, c3, w3, Bshift) |
76 | | lerp (c1, w1, c2, w2, c3, w3, Ashift); |
83 | | lerp (c1, w1, c2, w2, c3, w3, Ashift); |
77 | } |
84 | } |
78 | |
85 | |
79 | inline void Interp1 (unsigned char *pc, pixel c1, pixel c2) |
86 | static inline void Interp1 (unsigned char *pc, pixel c1, pixel c2) |
80 | { |
87 | { |
81 | lerp (pc, c1, 3, c2, 1); |
88 | lerp (pc, c1, 3, c2, 1); |
82 | } |
89 | } |
83 | |
90 | |
84 | inline void Interp2 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
91 | static inline void Interp2 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
85 | { |
92 | { |
86 | lerp (pc, c1, 2, c2, 1, c3, 1); |
93 | lerp (pc, c1, 2, c2, 1, c3, 1); |
87 | } |
94 | } |
88 | |
95 | |
89 | inline void Interp5 (unsigned char *pc, pixel c1, pixel c2) |
96 | static inline void Interp5 (unsigned char *pc, pixel c1, pixel c2) |
90 | { |
97 | { |
91 | lerp (pc, c1, 1, c2, 1); |
98 | lerp (pc, c1, 1, c2, 1); |
92 | } |
99 | } |
93 | |
100 | |
94 | inline void Interp6 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
101 | static inline void Interp6 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
95 | { |
102 | { |
96 | lerp (pc, c1, 5, c2, 2, c3, 1); |
103 | lerp (pc, c1, 5, c2, 2, c3, 1); |
97 | } |
104 | } |
98 | |
105 | |
99 | inline void Interp7 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
106 | static inline void Interp7 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
100 | { |
107 | { |
101 | lerp (pc, c1, 6, c2, 1, c3, 1); |
108 | lerp (pc, c1, 6, c2, 1, c3, 1); |
102 | } |
109 | } |
103 | |
110 | |
104 | inline void Interp9 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
111 | static inline void Interp9 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
105 | { |
112 | { |
106 | lerp (pc, c1, 2, c2, 3, c2, 3); |
113 | lerp (pc, c1, 2, c2, 3, c2, 3); |
107 | } |
114 | } |
108 | |
115 | |
109 | inline void Interp10 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
116 | static inline void Interp10 (unsigned char *pc, pixel c1, pixel c2, pixel c3) |
110 | { |
117 | { |
111 | lerp (pc, c1, 14, c2, 1, c3, 1); |
118 | lerp (pc, c1, 14, c2, 1, c3, 1); |
112 | } |
119 | } |
113 | |
120 | |
114 | #define PIXEL00_0 *((pixel *)(pOut)) = w[5]; |
121 | #define PIXEL00_0 *((pixel *)(pOut)) = w[5]; |
… | |
… | |
158 | #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]); |
159 | #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]); |
160 | #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]); |
161 | #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]); |
162 | |
169 | |
163 | inline pixel RGBAtoYUVA (pixel w) |
170 | static inline pixel RGBAtoYUVA (pixel w) |
164 | { |
171 | { |
165 | int r = (w >> Rshift) & Cmask; |
172 | int r = (w >> Rshift) & Cmask; |
166 | int g = (w >> Gshift) & Cmask; |
173 | int g = (w >> Gshift) & Cmask; |
167 | int b = (w >> Bshift) & Cmask; |
174 | int b = (w >> Bshift) & Cmask; |
168 | int a = (w >> Ashift) & Cmask; |
175 | int a = (w >> Ashift) & Cmask; |
… | |
… | |
175 | | (u << Gshift) |
182 | | (u << Gshift) |
176 | | (v << Bshift) |
183 | | (v << Bshift) |
177 | | (a << Ashift); |
184 | | (a << Ashift); |
178 | } |
185 | } |
179 | |
186 | |
180 | inline bool Diff (pixel w1, pixel w2) |
187 | static inline bool Diff (pixel w1, pixel w2) |
181 | { |
188 | { |
182 | pixel YUV1 = RGBAtoYUVA (w1); |
189 | pixel YUV1 = RGBAtoYUVA (w1); |
183 | pixel YUV2 = RGBAtoYUVA (w2); |
190 | pixel YUV2 = RGBAtoYUVA (w2); |
184 | |
191 | |
185 | return ((abs (((YUV1 >> Rshift) & Cmask) - ((YUV2 >> Rshift) & Cmask)) > trY) || |
192 | return ((udiff ((YUV1 >> Rshift) & Cmask, (YUV2 >> Rshift) & Cmask) > trY) || |
186 | (abs (((YUV1 >> Gshift) & Cmask) - ((YUV2 >> Gshift) & Cmask)) > trU) || |
193 | (udiff ((YUV1 >> Gshift) & Cmask, (YUV2 >> Gshift) & Cmask) > trU) || |
187 | (abs (((YUV1 >> Bshift) & Cmask) - ((YUV2 >> Bshift) & Cmask)) > trV) || |
194 | (udiff ((YUV1 >> Bshift) & Cmask, (YUV2 >> Bshift) & Cmask) > trV) || |
188 | (abs (((YUV1 >> Ashift) & Cmask) - ((YUV2 >> Ashift) & Cmask)) > trA) ); |
195 | (udiff ((YUV1 >> Ashift) & Cmask, (YUV2 >> Ashift) & Cmask) > trA) ); |
189 | } |
196 | } |
190 | |
197 | |
191 | void |
198 | static void |
192 | hq2x_32 (unsigned char *pIn, unsigned char *pOut, int Xres, int Yres, int BpL, bool wrap) |
199 | hq2x_32 (unsigned char *pIn, unsigned char *pOut, int Xres, int Yres, int BpL, bool wrap) |
193 | { |
200 | { |
194 | int i, j, k; |
201 | int i, j, k; |
195 | int prevline, nextline; |
202 | int prevline, nextline; |
196 | pixel w[10]; |
203 | pixel w[10]; |