Mercurial > vba-linux

     1 /*

     2  * This file is part of the Advance project.

     3  *

     4  * Copyright (C) 2003 Andrea Mazzoleni

     5  *

     6  * This program is free software; you can redistribute it and/or modify

     7  * it under the terms of the GNU General Public License as published by

     8  * the Free Software Foundation; either version 2 of the License, or

     9  * (at your option) any later version.

    10  *

    11  * This program is distributed in the hope that it will be useful,

    12  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    14  * GNU General Public License for more details.

    15  *

    16  * You should have received a copy of the GNU General Public License

    17  * along with this program; if not, write to the Free Software

    18  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    19  *

    20  * In addition, as a special exception, Andrea Mazzoleni

    21  * gives permission to link the code of this program with

    22  * the MAME library (or with modified versions of MAME that use the

    23  * same license as MAME), and distribute linked combinations including

    24  * the two.  You must obey the GNU General Public License in all

    25  * respects for all of the code used other than MAME.  If you modify

    26  * this file, you may extend this exception to your version of the

    27  * file, but you are not obligated to do so.  If you do not wish to

    28  * do so, delete this exception statement from your version.

    29  */

    30 

    31 #ifndef __INTERP_H

    32 #define __INTERP_H

    33 

    34 /***************************************************************************/

    35 /* Basic types */

    36 

    37 /***************************************************************************/

    38 /* interpolation */

    39 

    40 extern unsigned interp_mask[2];

    41 extern unsigned interp_bits_per_pixel;

    42 

    43 #define INTERP_16_MASK_1(v) (v & interp_mask[0])

    44 #define INTERP_16_MASK_2(v) (v & interp_mask[1])

    45 

    46 static inline u16 interp_16_521(u16 p1, u16 p2, u16 p3)

    47 {

    48   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*5 + INTERP_16_MASK_1(p2)*2 + INTERP_16_MASK_1(p3)*1) / 8)

    49     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*5 + INTERP_16_MASK_2(p2)*2 + INTERP_16_MASK_2(p3)*1) / 8);

    50 }

    51 

    52 static inline u16 interp_16_332(u16 p1, u16 p2, u16 p3)

    53 {

    54   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*3 + INTERP_16_MASK_1(p2)*3 + INTERP_16_MASK_1(p3)*2) / 8)

    55     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*3 + INTERP_16_MASK_2(p2)*3 + INTERP_16_MASK_2(p3)*2) / 8);

    56 }

    57 

    58 static inline u16 interp_16_611(u16 p1, u16 p2, u16 p3)

    59 {

    60   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*6 + INTERP_16_MASK_1(p2) + INTERP_16_MASK_1(p3)) / 8)

    61     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*6 + INTERP_16_MASK_2(p2) + INTERP_16_MASK_2(p3)) / 8);

    62 }

    63 

    64 static inline u16 interp_16_71(u16 p1, u16 p2)

    65 {

    66   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*7 + INTERP_16_MASK_1(p2)) / 8)

    67     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*7 + INTERP_16_MASK_2(p2)) / 8);

    68 }

    69 

    70 static inline u16 interp_16_211(u16 p1, u16 p2, u16 p3)

    71 {

    72   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*2 + INTERP_16_MASK_1(p2) + INTERP_16_MASK_1(p3)) / 4)

    73     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*2 + INTERP_16_MASK_2(p2) + INTERP_16_MASK_2(p3)) / 4);

    74 }

    75 

    76 static inline u16 interp_16_772(u16 p1, u16 p2, u16 p3)

    77 {

    78   return INTERP_16_MASK_1(((INTERP_16_MASK_1(p1) + INTERP_16_MASK_1(p2))*7 + INTERP_16_MASK_1(p3)*2) / 16)

    79     | INTERP_16_MASK_2(((INTERP_16_MASK_2(p1) + INTERP_16_MASK_2(p2))*7 + INTERP_16_MASK_2(p3)*2) / 16);

    80 }

    81 

    82 static inline u16 interp_16_11(u16 p1, u16 p2)

    83 {

    84   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1) + INTERP_16_MASK_1(p2)) / 2)

    85     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1) + INTERP_16_MASK_2(p2)) / 2);

    86 }

    87 

    88 static inline u16 interp_16_31(u16 p1, u16 p2)

    89 {

    90   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*3 + INTERP_16_MASK_1(p2)) / 4)

    91     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*3 + INTERP_16_MASK_2(p2)) / 4);

    92 }

    93 

    94 static inline u16 interp_16_1411(u16 p1, u16 p2, u16 p3)

    95 {

    96   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*14 + INTERP_16_MASK_1(p2) + INTERP_16_MASK_1(p3)) / 16)

    97     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*14 + INTERP_16_MASK_2(p2) + INTERP_16_MASK_2(p3)) / 16);

    98 }

    99 

   100 static inline u16 interp_16_431(u16 p1, u16 p2, u16 p3)

   101 {

   102   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*4 + INTERP_16_MASK_1(p2)*3 + INTERP_16_MASK_1(p3)) / 8)

   103     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*4 + INTERP_16_MASK_2(p2)*3 + INTERP_16_MASK_2(p3)) / 8);

   104 }

   105 

   106 static inline u16 interp_16_53(u16 p1, u16 p2)

   107 {

   108   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*5 + INTERP_16_MASK_1(p2)*3) / 8)

   109     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*5 + INTERP_16_MASK_2(p2)*3) / 8);

   110 }

   111 

   112 static inline u16 interp_16_151(u16 p1, u16 p2)

   113 {

   114   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*15 + INTERP_16_MASK_1(p2)) / 16)

   115     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*15 + INTERP_16_MASK_2(p2)) / 16);

   116 }

   117 

   118 static inline u16 interp_16_97(u16 p1, u16 p2)

   119 {

   120   return INTERP_16_MASK_1((INTERP_16_MASK_1(p1)*9 + INTERP_16_MASK_1(p2)*7) / 16)

   121     | INTERP_16_MASK_2((INTERP_16_MASK_2(p1)*9 + INTERP_16_MASK_2(p2)*7) / 16);

   122 }

   123 

   124 #define INTERP_32_MASK_1(v) (v & 0xFF00FF)

   125 #define INTERP_32_MASK_2(v) (v & 0x00FF00)

   126 

   127 static inline u32 interp_32_521(u32 p1, u32 p2, u32 p3)

   128 {

   129   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*5 + INTERP_32_MASK_1(p2)*2 + INTERP_32_MASK_1(p3)*1) / 8)

   130     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*5 + INTERP_32_MASK_2(p2)*2 + INTERP_32_MASK_2(p3)*1) / 8);

   131 }

   132 

   133 static inline u32 interp_32_332(u32 p1, u32 p2, u32 p3)

   134 {

   135   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*3 + INTERP_32_MASK_1(p2)*3 + INTERP_32_MASK_1(p3)*2) / 8)

   136     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*3 + INTERP_32_MASK_2(p2)*3 + INTERP_32_MASK_2(p3)*2) / 8);

   137 }

   138 

   139 static inline u32 interp_32_211(u32 p1, u32 p2, u32 p3)

   140 {

   141   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*2 + INTERP_32_MASK_1(p2) + INTERP_32_MASK_1(p3)) / 4)

   142     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*2 + INTERP_32_MASK_2(p2) + INTERP_32_MASK_2(p3)) / 4);

   143 }

   144 

   145 static inline u32 interp_32_611(u32 p1, u32 p2, u32 p3)

   146 {

   147   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*6 + INTERP_32_MASK_1(p2) + INTERP_32_MASK_1(p3)) / 8)

   148     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*6 + INTERP_32_MASK_2(p2) + INTERP_32_MASK_2(p3)) / 8);

   149 }

   150 

   151 static inline u32 interp_32_71(u32 p1, u32 p2)

   152 {

   153   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*7 + INTERP_32_MASK_1(p2)) / 8)

   154     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*7 + INTERP_32_MASK_2(p2)) / 8);

   155 }

   156 

   157 static inline u32 interp_32_772(u32 p1, u32 p2, u32 p3)

   158 {

   159   return INTERP_32_MASK_1(((INTERP_32_MASK_1(p1) + INTERP_32_MASK_1(p2))*7 + INTERP_32_MASK_1(p3)*2) / 16)

   160     | INTERP_32_MASK_2(((INTERP_32_MASK_2(p1) + INTERP_32_MASK_2(p2))*7 + INTERP_32_MASK_2(p3)*2) / 16);

   161 }

   162 

   163 static inline u32 interp_32_11(u32 p1, u32 p2)

   164 {

   165   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1) + INTERP_32_MASK_1(p2)) / 2)

   166     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1) + INTERP_32_MASK_2(p2)) / 2);

   167 }

   168 

   169 static inline u32 interp_32_31(u32 p1, u32 p2)

   170 {

   171   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*3 + INTERP_32_MASK_1(p2)) / 4)

   172     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*3 + INTERP_32_MASK_2(p2)) / 4);

   173 }

   174 

   175 static inline u32 interp_32_1411(u32 p1, u32 p2, u32 p3)

   176 {

   177   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*14 + INTERP_32_MASK_1(p2) + INTERP_32_MASK_1(p3)) / 16)

   178     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*14 + INTERP_32_MASK_2(p2) + INTERP_32_MASK_2(p3)) / 16);

   179 }

   180 

   181 static inline u32 interp_32_431(u32 p1, u32 p2, u32 p3)

   182 {

   183   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*4 + INTERP_32_MASK_1(p2)*3 + INTERP_32_MASK_1(p3)) / 8)

   184     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*4 + INTERP_32_MASK_2(p2)*3 + INTERP_32_MASK_2(p3)) / 8);

   185 }

   186 

   187 static inline u32 interp_32_53(u32 p1, u32 p2)

   188 {

   189   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*5 + INTERP_32_MASK_1(p2)*3) / 8)

   190     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*5 + INTERP_32_MASK_2(p2)*3) / 8);

   191 }

   192 

   193 static inline u32 interp_32_151(u32 p1, u32 p2)

   194 {

   195   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*15 + INTERP_32_MASK_1(p2)) / 16)

   196     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*15 + INTERP_32_MASK_2(p2)) / 16);

   197 }

   198 

   199 static inline u32 interp_32_97(u32 p1, u32 p2)

   200 {

   201   return INTERP_32_MASK_1((INTERP_32_MASK_1(p1)*9 + INTERP_32_MASK_1(p2)*7) / 16)

   202     | INTERP_32_MASK_2((INTERP_32_MASK_2(p1)*9 + INTERP_32_MASK_2(p2)*7) / 16);

   203 }

   204 

   205 /***************************************************************************/

   206 /* diff */

   207 

   208 #define INTERP_Y_LIMIT (0x30*4)

   209 #define INTERP_U_LIMIT (0x07*4)

   210 #define INTERP_V_LIMIT (0x06*8)

   211 

   212 static int interp_16_diff(u16 p1, u16 p2)

   213 {

   214   int r, g, b;

   215   int y, u, v;

   216 

   217   if (p1 == p2)

   218     return 0;

   219 

   220   if (interp_bits_per_pixel == 16) {

   221     b = (int)((p1 & 0x1F) - (p2 & 0x1F)) << 3;

   222     g = (int)((p1 & 0x7E0) - (p2 & 0x7E0)) >> 3;

   223     r = (int)((p1 & 0xF800) - (p2 & 0xF800)) >> 8;

   224   } else {

   225     b = (int)((p1 & 0x1F) - (p2 & 0x1F)) << 3;

   226     g = (int)((p1 & 0x3E0) - (p2 & 0x3E0)) >> 2;

   227     r = (int)((p1 & 0x7C00) - (p2 & 0x7C00)) >> 7;

   228   }

   229 

   230   y = r + g + b;

   231   u = r - b;

   232   v = -r + 2*g - b;

   233 

   234   if (y < -INTERP_Y_LIMIT || y > INTERP_Y_LIMIT)

   235     return 1;

   236 

   237   if (u < -INTERP_U_LIMIT || u > INTERP_U_LIMIT)

   238     return 1;

   239 

   240   if (v < -INTERP_V_LIMIT || v > INTERP_V_LIMIT)

   241     return 1;

   242 

   243 return 0;

   244 }

   245 

   246 static int interp_32_diff(u32 p1, u32 p2)

   247 {

   248   int r, g, b;

   249   int y, u, v;

   250 

   251   if ((p1 & 0xF8F8F8) == (p2 & 0xF8F8F8))

   252     return 0;

   253 

   254   b = (int)((p1 & 0xFF) - (p2 & 0xFF));

   255   g = (int)((p1 & 0xFF00) - (p2 & 0xFF00)) >> 8;

   256   r = (int)((p1 & 0xFF0000) - (p2 & 0xFF0000)) >> 16;

   257 

   258   y = r + g + b;

   259   u = r - b;

   260   v = -r + 2*g - b;

   261 

   262   if (y < -INTERP_Y_LIMIT || y > INTERP_Y_LIMIT)

   263     return 1;

   264 

   265   if (u < -INTERP_U_LIMIT || u > INTERP_U_LIMIT)

   266     return 1;

   267 

   268   if (v < -INTERP_V_LIMIT || v > INTERP_V_LIMIT)

   269     return 1;

   270 

   271   return 0;

   272 }

   273 

   274 

   275 #define INTERP_LIMIT2 (96000)

   276 #define ABS(x) ((x) < 0 ? -(x) : (x))

   277 #define MAX(x,y) ((x) > (y) ? (x) : (y))

   278 #define MIN(x,y) ((x) < (y) ? (x) : (y))

   279 

   280 static int interp_16_diff2(u16 p1, u16 p2)

   281 {

   282   int r, g, b;

   283   int y, u, v;

   284 

   285   if ((p1 & 0xF79E) == (p2 & 0xF79E))

   286     return 0;

   287 

   288   if (interp_bits_per_pixel == 16) {

   289     b = (int)((p1 & 0x1F) - (p2 & 0x1F)) << 3;

   290     g = (int)((p1 & 0x7E0) - (p2 & 0x7E0)) >> 3;

   291     r = (int)((p1 & 0xF800) - (p2 & 0xF800)) >> 8;

   292   } else {

   293     b = (int)((p1 & 0x1F) - (p2 & 0x1F)) << 3;

   294     g = (int)((p1 & 0x3E0) - (p2 & 0x3E0)) >> 2;

   295     r = (int)((p1 & 0x7C00) - (p2 & 0x7C00)) >> 7;

   296   }

   297 

   298 //  yb =  30*r + 58*g + 12*b;

   299   y =  33*r + 36*g + 31*b;

   300   u = -14*r - 29*g + 44*b; 

   301   v =  62*r - 51*g - 10*b;

   302 

   303   if (11*ABS(y) + 8*ABS(u) + 6*ABS(v) > INTERP_LIMIT2)

   304     return 1;

   305   return 0;

   306 }

   307 

   308 static int interp_32_diff2(u32 p1, u32 p2)

   309 {

   310   int r, g, b;

   311   int y, u, v;

   312 

   313   if ((p1 & 0xF0F0F0) == (p2 & 0xF0F0F0))

   314     return 0;

   315 

   316   b = (int)((p1 & 0xF8) - (p2 & 0xF8));

   317   g = (int)((p1 & 0xF800) - (p2 & 0xF800)) >> 8;

   318   r = (int)((p1 & 0xF80000) - (p2 & 0xF80000)) >> 16;

   319 

   320 //  y =  30*r + 58*g + 12*b;

   321   y =  33*r + 36*g + 31*b;

   322   u = -14*r - 29*g + 44*b; 

   323   v =  62*r - 51*g - 10*b;

   324 

   325   if (11*ABS(y) + 8*ABS(u) + 6*ABS(v) > INTERP_LIMIT2)

   326     return 1;

   327 

   328   return 0;

   329 }

   330 

   331 static void interp_set(unsigned bits_per_pixel)

   332 {

   333   interp_bits_per_pixel = bits_per_pixel;

   334 

   335   switch (bits_per_pixel) {

   336   case 15 :

   337     interp_mask[0] = 0x7C1F;

   338     interp_mask[1] = 0x03E0;

   339     break;

   340   case 16 :

   341     interp_mask[0] = 0xF81F;

   342     interp_mask[1] = 0x07E0;

   343     break;

   344   case 32 :

   345     interp_mask[0] = 0xFF00FF;

   346     interp_mask[1] = 0x00FF00;

   347     break;

   348   }

   349 }

   350 

   351 #endif
author	Robert McIntyre <rlm@mit.edu>
date	Sat, 03 Mar 2012 10:31:27 -0600
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