5 * Copyright (C) 2007 Hiroshi Morii All Rights Reserved.
6 * Email koolsmoky(at)users.sourceforge.net
7 * Web http://www.3dfxzone.it/koolsmoky
9 * this is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2, or (at your option)
14 * this is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with GNU Make; see the file COPYING. If not, write to
21 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 /* Based on Derek Liauw Kie Fa and Rice1964 Super2xSaI code */
26 #include "TextureFilters.h"
28 #define GET_RESULT(A, B, C, D) ((A != C || A != D) - (B != C || B != D))
30 void Super2xSaI_8888(uint32 *srcPtr, uint32 *destPtr, uint32 width, uint32 height, uint32 pitch)
32 #define SAI_INTERPOLATE_8888(A, B) ((A & 0xFEFEFEFE) >> 1) + ((B & 0xFEFEFEFE) >> 1) + (A & B & 0x01010101)
33 #define SAI_Q_INTERPOLATE_8888(A, B, C, D) ((A & 0xFCFCFCFC) >> 2) + ((B & 0xFCFCFCFC) >> 2) + ((C & 0xFCFCFCFC) >> 2) + ((D & 0xFCFCFCFC) >> 2) \
34 + ((((A & 0x03030303) + (B & 0x03030303) + (C & 0x03030303) + (D & 0x03030303)) >> 2) & 0x03030303)
36 #define SAI_INTERPOLATE SAI_INTERPOLATE_8888
37 #define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_8888
39 uint32 destWidth = width << 1;
41 uint32 color4, color5, color6;
42 uint32 color1, color2, color3;
43 uint32 colorA0, colorA1, colorA2, colorA3;
44 uint32 colorB0, colorB1, colorB2, colorB3;
45 uint32 colorS1, colorS2;
46 uint32 product1a, product1b, product2a, product2b;
48 #include "TextureFilters_2xsai.h"
50 #undef SAI_INTERPOLATE
51 #undef SAI_Q_INTERPOLATE
55 void Super2xSaI_4444(uint16 *srcPtr, uint16 *destPtr, uint32 width, uint32 height, uint32 pitch)
57 #define SAI_INTERPOLATE_4444(A, B) ((A & 0xEEEE) >> 1) + ((B & 0xEEEE) >> 1) + (A & B & 0x1111)
58 #define SAI_Q_INTERPOLATE_4444(A, B, C, D) ((A & 0xCCCC) >> 2) + ((B & 0xCCCC) >> 2) + ((C & 0xCCCC) >> 2) + ((D & 0xCCCC) >> 2) \
59 + ((((A & 0x3333) + (B & 0x3333) + (C & 0x3333) + (D & 0x3333)) >> 2) & 0x3333)
61 #define SAI_INTERPOLATE SAI_INTERPOLATE_4444
62 #define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_4444
64 uint32 destWidth = width << 1;
65 uint32 destHeight = height << 1;
67 uint16 color4, color5, color6;
68 uint16 color1, color2, color3;
69 uint16 colorA0, colorA1, colorA2, colorA3;
70 uint16 colorB0, colorB1, colorB2, colorB3;
71 uint16 colorS1, colorS2;
72 uint16 product1a, product1b, product2a, product2b;
74 #include "TextureFilters_2xsai.h"
76 #undef SAI_INTERPOLATE
77 #undef SAI_Q_INTERPOLATE
80 void Super2xSaI_1555(uint16 *srcPtr, uint16 *destPtr, uint32 width, uint32 height, uint32 pitch)
82 #define SAI_INTERPOLATE_1555(A, B) ((A & 0x7BDE) >> 1) + ((B & 0x7BDE) >> 1) + (A & B & 0x8421)
83 #define SAI_Q_INTERPOLATE_1555(A, B, C, D) ((A & 0x739C) >> 2) + ((B & 0x739C) >> 2) + ((C & 0x739C) >> 2) + ((D & 0x739C) >> 2) \
84 + ((((A & 0x8C63) + (B & 0x8C63) + (C & 0x8C63) + (D & 0x8C63)) >> 2) & 0x8C63)
86 #define SAI_INTERPOLATE SAI_INTERPOLATE_1555
87 #define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_1555
89 uint32 destWidth = width << 1;
90 uint32 destHeight = height << 1;
92 uint16 color4, color5, color6;
93 uint16 color1, color2, color3;
94 uint16 colorA0, colorA1, colorA2, colorA3;
95 uint16 colorB0, colorB1, colorB2, colorB3;
96 uint16 colorS1, colorS2;
97 uint16 product1a, product1b, product2a, product2b;
99 #include "TextureFilters_2xsai.h"
101 #undef SAI_INTERPOLATE
102 #undef SAI_Q_INTERPOLATE
105 void Super2xSaI_565(uint16 *srcPtr, uint16 *destPtr, uint32 width, uint32 height, uint32 pitch)
107 #define SAI_INTERPOLATE_565(A, B) ((A & 0xF7DE) >> 1) + ((B & 0xF7DE) >> 1) + (A & B & 0x0821)
108 #define SAI_Q_INTERPOLATE_565(A, B, C, D) ((A & 0xE79C) >> 2) + ((B & 0xE79C) >> 2) + ((C & 0xE79C) >> 2) + ((D & 0xE79C) >> 2) \
109 + ((((A & 0x1863) + (B & 0x1863) + (C & 0x1863) + (D & 0x1863)) >> 2) & 0x1863)
111 #define SAI_INTERPOLATE SAI_INTERPOLATE_565
112 #define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_565
114 uint32 destWidth = width << 1;
115 uint32 destHeight = height << 1;
117 uint16 color4, color5, color6;
118 uint16 color1, color2, color3;
119 uint16 colorA0, colorA1, colorA2, colorA3;
120 uint16 colorB0, colorB1, colorB2, colorB3;
121 uint16 colorS1, colorS2;
122 uint16 product1a, product1b, product2a, product2b;
124 #include "TextureFilters_2xsai.h"
126 #undef SAI_INTERPOLATE
127 #undef SAI_Q_INTERPOLATE
130 void Super2xSaI_8(uint8 *srcPtr, uint8 *destPtr, uint32 width, uint32 height, uint32 pitch)
132 #define SAI_INTERPOLATE_8(A, B) ((A & 0xFE) >> 1) + ((B & 0xFE) >> 1) + (A & B & 0x01)
133 #define SAI_Q_INTERPOLATE_8(A, B, C, D) ((A & 0xFC) >> 2) + ((B & 0xFC) >> 2) + ((C & 0xFC) >> 2) + ((D & 0xFC) >> 2) \
134 + ((((A & 0x03) + (B & 0x03) + (C & 0x03) + (D & 0x03)) >> 2) & 0x03)
136 #define SAI_INTERPOLATE SAI_INTERPOLATE_8
137 #define SAI_Q_INTERPOLATE SAI_Q_INTERPOLATE_8
139 uint32 destWidth = width << 1;
140 uint32 destHeight = height << 1;
142 uint8 color4, color5, color6;
143 uint8 color1, color2, color3;
144 uint8 colorA0, colorA1, colorA2, colorA3;
145 uint8 colorB0, colorB1, colorB2, colorB3;
146 uint8 colorS1, colorS2;
147 uint8 product1a, product1b, product2a, product2b;
149 #include "TextureFilters_2xsai.h"
151 #undef SAI_INTERPOLATE
152 #undef SAI_Q_INTERPOLATE
154 #endif /* !_16BPP_HACK */