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 #include "../Port.h"

    31 #include "interp.h"

    32 

    33 unsigned interp_mask[2];

    34 unsigned interp_bits_per_pixel;

    35 

    36 /***************************************************************************/

    37 /* HQ2x C implementation */

    38 

    39 /*

    40  * This effect is a rewritten implementation of the hq2x effect made by Maxim Stepin

    41  */

    42 

    43 static void hq2x_16_def(u16 *dst0, u16 *dst1, const u16 *src0, const u16 *src1, const u16 *src2, unsigned count)

    44 {

    45 	unsigned i;

    46 

    47 	for (i = 0; i < count; ++i)

    48 	{

    49 		unsigned char mask;

    50 

    51 		u16 c[9];

    52 

    53 		c[1] = src0[0];

    54 		c[4] = src1[0];

    55 		c[7] = src2[0];

    56 

    57 		if (i > 0)

    58 		{

    59 			c[0] = src0[-1];

    60 			c[3] = src1[-1];

    61 			c[6] = src2[-1];

    62 		}

    63 		else

    64 		{

    65 			c[0] = c[1];

    66 			c[3] = c[4];

    67 			c[6] = c[7];

    68 		}

    69 

    70 		if (i < count - 1)

    71 		{

    72 			c[2] = src0[1];

    73 			c[5] = src1[1];

    74 			c[8] = src2[1];

    75 		}

    76 		else

    77 		{

    78 			c[2] = c[1];

    79 			c[5] = c[4];

    80 			c[8] = c[7];

    81 		}

    82 

    83 		mask = 0;

    84 

    85 		if (interp_16_diff(c[0], c[4]))

    86 			mask |= 1 << 0;

    87 		if (interp_16_diff(c[1], c[4]))

    88 			mask |= 1 << 1;

    89 		if (interp_16_diff(c[2], c[4]))

    90 			mask |= 1 << 2;

    91 		if (interp_16_diff(c[3], c[4]))

    92 			mask |= 1 << 3;

    93 		if (interp_16_diff(c[5], c[4]))

    94 			mask |= 1 << 4;

    95 		if (interp_16_diff(c[6], c[4]))

    96 			mask |= 1 << 5;

    97 		if (interp_16_diff(c[7], c[4]))

    98 			mask |= 1 << 6;

    99 		if (interp_16_diff(c[8], c[4]))

   100 			mask |= 1 << 7;

   101 

   102 #define P0 dst0[0]

   103 #define P1 dst0[1]

   104 #define P2 dst1[0]

   105 #define P3 dst1[1]

   106 #define MUR interp_16_diff(c[1], c[5]) // top-right

   107 #define MDR interp_16_diff(c[5], c[7]) // bottom-right

   108 #define MDL interp_16_diff(c[7], c[3]) // bottom-left

   109 #define MUL interp_16_diff(c[3], c[1]) // top-left

   110 #define IC(p0) c[p0]

   111 #define I11(p0, p1) interp_16_11(c[p0], c[p1])

   112 #define I211(p0, p1, p2) interp_16_211(c[p0], c[p1], c[p2])

   113 #define I31(p0, p1) interp_16_31(c[p0], c[p1])

   114 #define I332(p0, p1, p2) interp_16_332(c[p0], c[p1], c[p2])

   115 #define I431(p0, p1, p2) interp_16_431(c[p0], c[p1], c[p2])

   116 #define I521(p0, p1, p2) interp_16_521(c[p0], c[p1], c[p2])

   117 #define I53(p0, p1) interp_16_53(c[p0], c[p1])

   118 #define I611(p0, p1, p2) interp_16_611(c[p0], c[p1], c[p2])

   119 #define I71(p0, p1) interp_16_71(c[p0], c[p1])

   120 #define I772(p0, p1, p2) interp_16_772(c[p0], c[p1], c[p2])

   121 #define I97(p0, p1) interp_16_97(c[p0], c[p1])

   122 #define I1411(p0, p1, p2) interp_16_1411(c[p0], c[p1], c[p2])

   123 #define I151(p0, p1) interp_16_151(c[p0], c[p1])

   124 

   125 		switch (mask)

   126 		{

   127 #include "hq2x.h"

   128 		}

   129 

   130 #undef P0

   131 #undef P1

   132 #undef P2

   133 #undef P3

   134 #undef MUR

   135 #undef MDR

   136 #undef MDL

   137 #undef MUL

   138 #undef IC

   139 #undef I11

   140 #undef I211

   141 #undef I31

   142 #undef I332

   143 #undef I431

   144 #undef I521

   145 #undef I53

   146 #undef I611

   147 #undef I71

   148 #undef I772

   149 #undef I97

   150 #undef I1411

   151 #undef I151

   152 

   153 		src0 += 1;

   154 		src1 += 1;

   155 		src2 += 1;

   156 		dst0 += 2;

   157 		dst1 += 2;

   158 	}

   159 }

   160 

   161 static void hq2x_32_def(u32 *dst0, u32 *dst1, const u32 *src0, const u32 *src1, const u32 *src2, unsigned count)

   162 {

   163 	unsigned i;

   164 

   165 	for (i = 0; i < count; ++i)

   166 	{

   167 		unsigned char mask;

   168 

   169 		u32 c[9];

   170 

   171 		c[1] = src0[0];

   172 		c[4] = src1[0];

   173 		c[7] = src2[0];

   174 

   175 		if (i > 0)

   176 		{

   177 			c[0] = src0[-1];

   178 			c[3] = src1[-1];

   179 			c[6] = src2[-1];

   180 		}

   181 		else

   182 		{

   183 			c[0] = c[1];

   184 			c[3] = c[4];

   185 			c[6] = c[7];

   186 		}

   187 

   188 		if (i < count - 1)

   189 		{

   190 			c[2] = src0[1];

   191 			c[5] = src1[1];

   192 			c[8] = src2[1];

   193 		}

   194 		else

   195 		{

   196 			c[2] = c[1];

   197 			c[5] = c[4];

   198 			c[8] = c[7];

   199 		}

   200 

   201 		mask = 0;

   202 

   203 		if (interp_32_diff(c[0], c[4]))

   204 			mask |= 1 << 0;

   205 		if (interp_32_diff(c[1], c[4]))

   206 			mask |= 1 << 1;

   207 		if (interp_32_diff(c[2], c[4]))

   208 			mask |= 1 << 2;

   209 		if (interp_32_diff(c[3], c[4]))

   210 			mask |= 1 << 3;

   211 		if (interp_32_diff(c[5], c[4]))

   212 			mask |= 1 << 4;

   213 		if (interp_32_diff(c[6], c[4]))

   214 			mask |= 1 << 5;

   215 		if (interp_32_diff(c[7], c[4]))

   216 			mask |= 1 << 6;

   217 		if (interp_32_diff(c[8], c[4]))

   218 			mask |= 1 << 7;

   219 

   220 #define P0 dst0[0]

   221 #define P1 dst0[1]

   222 #define P2 dst1[0]

   223 #define P3 dst1[1]

   224 #define MUR interp_32_diff(c[1], c[5]) // top-right

   225 #define MDR interp_32_diff(c[5], c[7]) // bottom-right

   226 #define MDL interp_32_diff(c[7], c[3]) // bottom-left

   227 #define MUL interp_32_diff(c[3], c[1]) // top-left

   228 #define IC(p0) c[p0]

   229 #define I11(p0, p1) interp_32_11(c[p0], c[p1])

   230 #define I211(p0, p1, p2) interp_32_211(c[p0], c[p1], c[p2])

   231 #define I31(p0, p1) interp_32_31(c[p0], c[p1])

   232 #define I332(p0, p1, p2) interp_32_332(c[p0], c[p1], c[p2])

   233 #define I431(p0, p1, p2) interp_32_431(c[p0], c[p1], c[p2])

   234 #define I521(p0, p1, p2) interp_32_521(c[p0], c[p1], c[p2])

   235 #define I53(p0, p1) interp_32_53(c[p0], c[p1])

   236 #define I611(p0, p1, p2) interp_32_611(c[p0], c[p1], c[p2])

   237 #define I71(p0, p1) interp_32_71(c[p0], c[p1])

   238 #define I772(p0, p1, p2) interp_32_772(c[p0], c[p1], c[p2])

   239 #define I97(p0, p1) interp_32_97(c[p0], c[p1])

   240 #define I1411(p0, p1, p2) interp_32_1411(c[p0], c[p1], c[p2])

   241 #define I151(p0, p1) interp_32_151(c[p0], c[p1])

   242 

   243 		switch (mask)

   244 		{

   245 #include "hq2x.h"

   246 		}

   247 

   248 #undef P0

   249 #undef P1

   250 #undef P2

   251 #undef P3

   252 #undef MUR

   253 #undef MDR

   254 #undef MDL

   255 #undef MUL

   256 #undef IC

   257 #undef I11

   258 #undef I211

   259 #undef I31

   260 #undef I332

   261 #undef I431

   262 #undef I521

   263 #undef I53

   264 #undef I611

   265 #undef I71

   266 #undef I772

   267 #undef I97

   268 #undef I1411

   269 #undef I151

   270 

   271 		src0 += 1;

   272 		src1 += 1;

   273 		src2 += 1;

   274 		dst0 += 2;

   275 		dst1 += 2;

   276 	}

   277 }

   278 

   279 /***************************************************************************/

   280 /* HQ2xS C implementation */

   281 

   282 /*

   283  * This effect is derived from the hq2x effect made by Maxim Stepin

   284  */

   285 

   286 static void hq2xS_16_def(u16 *dst0, u16 *dst1, const u16 *src0, const u16 *src1, const u16 *src2, unsigned count)

   287 {

   288 	unsigned i;

   289 

   290 	for (i = 0; i < count; ++i)

   291 	{

   292 		unsigned char mask;

   293 

   294 		u16 c[9];

   295 

   296 		c[1] = src0[0];

   297 		c[4] = src1[0];

   298 		c[7] = src2[0];

   299 

   300 		c[0] = src0[-1];

   301 		c[3] = src1[-1];

   302 		c[6] = src2[-1];

   303 

   304 		c[2] = src0[1];

   305 		c[5] = src1[1];

   306 		c[8] = src2[1];

   307 

   308 		mask = 0;

   309 

   310 		// hq2xS dynamic edge detection:

   311 		// simply comparing the center color against its surroundings will give bad results in many cases,

   312 		// so, instead, compare the center color relative to the max difference in brightness of this 3x3 block

   313 		int brightArray[9];

   314 		int maxBright = 0, minBright = 999999;

   315 		for (int j = 0; j < 9; j++)

   316 		{

   317 			int r, g, b;

   318 			if (interp_bits_per_pixel == 16)

   319 			{

   320 				b = (int)((c[j] & 0x1F)) << 3;

   321 				g = (int)((c[j] & 0x7E0)) >> 3;

   322 				r = (int)((c[j] & 0xF800)) >> 8;

   323 			}

   324 			else

   325 			{

   326 				b = (int)((c[j] & 0x1F)) << 3;

   327 				g = (int)((c[j] & 0x3E0)) >> 2;

   328 				r = (int)((c[j] & 0x7C00)) >> 7;

   329 			}

   330 			const int bright = r + r + r + g + g + g + b + b;

   331 			if (bright > maxBright) maxBright = bright;

   332 			if (bright < minBright) minBright = bright;

   333 

   334 			brightArray[j] = bright;

   335 		}

   336 		int diffBright = ((maxBright - minBright) * 7) >> 4;

   337 		if (diffBright > 7)

   338 		{

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

   340 

   341 			const int centerBright = brightArray[4];

   342 			if (ABS(brightArray[0] - centerBright) > diffBright)

   343 				mask |= 1 << 0;

   344 			if (ABS(brightArray[1] - centerBright) > diffBright)

   345 				mask |= 1 << 1;

   346 			if (ABS(brightArray[2] - centerBright) > diffBright)

   347 				mask |= 1 << 2;

   348 			if (ABS(brightArray[3] - centerBright) > diffBright)

   349 				mask |= 1 << 3;

   350 			if (ABS(brightArray[5] - centerBright) > diffBright)

   351 				mask |= 1 << 4;

   352 			if (ABS(brightArray[6] - centerBright) > diffBright)

   353 				mask |= 1 << 5;

   354 			if (ABS(brightArray[7] - centerBright) > diffBright)

   355 				mask |= 1 << 6;

   356 			if (ABS(brightArray[8] - centerBright) > diffBright)

   357 				mask |= 1 << 7;

   358 		}

   359 

   360 #define P0 dst0[0]

   361 #define P1 dst0[1]

   362 #define P2 dst1[0]

   363 #define P3 dst1[1]

   364 #define MUR false //(ABS(brightArray[1] - brightArray[5]) > diffBright) // top-right

   365 #define MDR false //(ABS(brightArray[5] - brightArray[7]) > diffBright) // bottom-right

   366 #define MDL false //(ABS(brightArray[7] - brightArray[3]) > diffBright) // bottom-left

   367 #define MUL false //(ABS(brightArray[3] - brightArray[1]) > diffBright) // top-left

   368 #define IC(p0) c[p0]

   369 #define I11(p0, p1) interp_16_11(c[p0], c[p1])

   370 #define I211(p0, p1, p2) interp_16_211(c[p0], c[p1], c[p2])

   371 #define I31(p0, p1) interp_16_31(c[p0], c[p1])

   372 #define I332(p0, p1, p2) interp_16_332(c[p0], c[p1], c[p2])

   373 #define I431(p0, p1, p2) interp_16_431(c[p0], c[p1], c[p2])

   374 #define I521(p0, p1, p2) interp_16_521(c[p0], c[p1], c[p2])

   375 #define I53(p0, p1) interp_16_53(c[p0], c[p1])

   376 #define I611(p0, p1, p2) interp_16_611(c[p0], c[p1], c[p2])

   377 #define I71(p0, p1) interp_16_71(c[p0], c[p1])

   378 #define I772(p0, p1, p2) interp_16_772(c[p0], c[p1], c[p2])

   379 #define I97(p0, p1) interp_16_97(c[p0], c[p1])

   380 #define I1411(p0, p1, p2) interp_16_1411(c[p0], c[p1], c[p2])

   381 #define I151(p0, p1) interp_16_151(c[p0], c[p1])

   382 

   383 		switch (mask)

   384 		{

   385 #include "hq2x.h"

   386 		}

   387 

   388 #undef P0

   389 #undef P1

   390 #undef P2

   391 #undef P3

   392 #undef MUR

   393 #undef MDR

   394 #undef MDL

   395 #undef MUL

   396 #undef IC

   397 #undef I11

   398 #undef I211

   399 #undef I31

   400 #undef I332

   401 #undef I431

   402 #undef I521

   403 #undef I53

   404 #undef I611

   405 #undef I71

   406 #undef I772

   407 #undef I97

   408 #undef I1411

   409 #undef I151

   410 

   411 		src0 += 1;

   412 		src1 += 1;

   413 		src2 += 1;

   414 		dst0 += 2;

   415 		dst1 += 2;

   416 	}

   417 }

   418 

   419 static void hq2xS_32_def(u32 *dst0, u32 *dst1, const u32 *src0, const u32 *src1, const u32 *src2, unsigned count)

   420 {

   421 	unsigned i;

   422 

   423 	for (i = 0; i < count; ++i)

   424 	{

   425 		unsigned char mask;

   426 

   427 		u32 c[9];

   428 

   429 		c[1] = src0[0];

   430 		c[4] = src1[0];

   431 		c[7] = src2[0];

   432 

   433 		c[0] = src0[-1];

   434 		c[3] = src1[-1];

   435 		c[6] = src2[-1];

   436 

   437 		c[2] = src0[1];

   438 		c[5] = src1[1];

   439 		c[8] = src2[1];

   440 

   441 		mask = 0;

   442 

   443 		// hq2xS dynamic edge detection:

   444 		// simply comparing the center color against its surroundings will give bad results in many cases,

   445 		// so, instead, compare the center color relative to the max difference in brightness of this 3x3 block

   446 		int brightArray[9];

   447 		int maxBright = 0, minBright = 999999;

   448 		for (int j = 0; j < 9; j++)

   449 		{

   450 			const int b		 = (int)((c[j] & 0xF8));

   451 			const int g		 = (int)((c[j] & 0xF800)) >> 8;

   452 			const int r		 = (int)((c[j] & 0xF80000)) >> 16;

   453 			const int bright = r + r + r + g + g + g + b + b;

   454 			if (bright > maxBright) maxBright = bright;

   455 			if (bright < minBright) minBright = bright;

   456 

   457 			brightArray[j] = bright;

   458 		}

   459 		int diffBright = ((maxBright - minBright) * 7) >> 4;

   460 		if (diffBright > 7)

   461 		{

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

   463 

   464 			const int centerBright = brightArray[4];

   465 			if (ABS(brightArray[0] - centerBright) > diffBright)

   466 				mask |= 1 << 0;

   467 			if (ABS(brightArray[1] - centerBright) > diffBright)

   468 				mask |= 1 << 1;

   469 			if (ABS(brightArray[2] - centerBright) > diffBright)

   470 				mask |= 1 << 2;

   471 			if (ABS(brightArray[3] - centerBright) > diffBright)

   472 				mask |= 1 << 3;

   473 			if (ABS(brightArray[5] - centerBright) > diffBright)

   474 				mask |= 1 << 4;

   475 			if (ABS(brightArray[6] - centerBright) > diffBright)

   476 				mask |= 1 << 5;

   477 			if (ABS(brightArray[7] - centerBright) > diffBright)

   478 				mask |= 1 << 6;

   479 			if (ABS(brightArray[8] - centerBright) > diffBright)

   480 				mask |= 1 << 7;

   481 		}

   482 

   483 #define P0 dst0[0]

   484 #define P1 dst0[1]

   485 #define P2 dst1[0]

   486 #define P3 dst1[1]

   487 #define MUR false //(ABS(brightArray[1] - brightArray[5]) > diffBright) // top-right

   488 #define MDR false //(ABS(brightArray[5] - brightArray[7]) > diffBright) // bottom-right

   489 #define MDL false //(ABS(brightArray[7] - brightArray[3]) > diffBright) // bottom-left

   490 #define MUL false //(ABS(brightArray[3] - brightArray[1]) > diffBright) // top-left

   491 #define IC(p0) c[p0]

   492 #define I11(p0, p1) interp_32_11(c[p0], c[p1])

   493 #define I211(p0, p1, p2) interp_32_211(c[p0], c[p1], c[p2])

   494 #define I31(p0, p1) interp_32_31(c[p0], c[p1])

   495 #define I332(p0, p1, p2) interp_32_332(c[p0], c[p1], c[p2])

   496 #define I431(p0, p1, p2) interp_32_431(c[p0], c[p1], c[p2])

   497 #define I521(p0, p1, p2) interp_32_521(c[p0], c[p1], c[p2])

   498 #define I53(p0, p1) interp_32_53(c[p0], c[p1])

   499 #define I611(p0, p1, p2) interp_32_611(c[p0], c[p1], c[p2])

   500 #define I71(p0, p1) interp_32_71(c[p0], c[p1])

   501 #define I772(p0, p1, p2) interp_32_772(c[p0], c[p1], c[p2])

   502 #define I97(p0, p1) interp_32_97(c[p0], c[p1])

   503 #define I1411(p0, p1, p2) interp_32_1411(c[p0], c[p1], c[p2])

   504 #define I151(p0, p1) interp_32_151(c[p0], c[p1])

   505 

   506 		switch (mask)

   507 		{

   508 #include "hq2x.h"

   509 		}

   510 

   511 #undef P0

   512 #undef P1

   513 #undef P2

   514 #undef P3

   515 #undef MUR

   516 #undef MDR

   517 #undef MDL

   518 #undef MUL

   519 #undef IC

   520 #undef I11

   521 #undef I211

   522 #undef I31

   523 #undef I332

   524 #undef I431

   525 #undef I521

   526 #undef I53

   527 #undef I611

   528 #undef I71

   529 #undef I772

   530 #undef I97

   531 #undef I1411

   532 #undef I151

   533 

   534 		src0 += 1;

   535 		src1 += 1;

   536 		src2 += 1;

   537 		dst0 += 2;

   538 		dst1 += 2;

   539 	}

   540 }

   541 

   542 /***************************************************************************/

   543 /* LQ2x C implementation */

   544 

   545 /*

   546  * This effect is derived from the hq2x effect made by Maxim Stepin

   547  */

   548 

   549 static void lq2x_16_def(u16 *dst0, u16 *dst1, const u16 *src0, const u16 *src1, const u16 *src2, unsigned count)

   550 {

   551 	unsigned i;

   552 

   553 	for (i = 0; i < count; ++i)

   554 	{

   555 		unsigned char mask;

   556 

   557 		u16 c[9];

   558 

   559 		c[1] = src0[0];

   560 		c[4] = src1[0];

   561 		c[7] = src2[0];

   562 

   563 		if (i > 0)

   564 		{

   565 			c[0] = src0[-1];

   566 			c[3] = src1[-1];

   567 			c[6] = src2[-1];

   568 		}

   569 		else

   570 		{

   571 			c[0] = c[1];

   572 			c[3] = c[4];

   573 			c[6] = c[7];

   574 		}

   575 

   576 		if (i < count - 1)

   577 		{

   578 			c[2] = src0[1];

   579 			c[5] = src1[1];

   580 			c[8] = src2[1];

   581 		}

   582 		else

   583 		{

   584 			c[2] = c[1];

   585 			c[5] = c[4];

   586 			c[8] = c[7];

   587 		}

   588 

   589 		mask = 0;

   590 

   591 		if (c[0] != c[4])

   592 			mask |= 1 << 0;

   593 		if (c[1] != c[4])

   594 			mask |= 1 << 1;

   595 		if (c[2] != c[4])

   596 			mask |= 1 << 2;

   597 		if (c[3] != c[4])

   598 			mask |= 1 << 3;

   599 		if (c[5] != c[4])

   600 			mask |= 1 << 4;

   601 		if (c[6] != c[4])

   602 			mask |= 1 << 5;

   603 		if (c[7] != c[4])

   604 			mask |= 1 << 6;

   605 		if (c[8] != c[4])

   606 			mask |= 1 << 7;

   607 

   608 #define P0 dst0[0]

   609 #define P1 dst0[1]

   610 #define P2 dst1[0]

   611 #define P3 dst1[1]

   612 #define MUR (c[1] != c[5])

   613 #define MDR (c[5] != c[7])

   614 #define MDL (c[7] != c[3])

   615 #define MUL (c[3] != c[1])

   616 #define IC(p0) c[p0]

   617 #define I11(p0, p1) interp_16_11(c[p0], c[p1])

   618 #define I211(p0, p1, p2) interp_16_211(c[p0], c[p1], c[p2])

   619 #define I31(p0, p1) interp_16_31(c[p0], c[p1])

   620 #define I332(p0, p1, p2) interp_16_332(c[p0], c[p1], c[p2])

   621 #define I431(p0, p1, p2) interp_16_431(c[p0], c[p1], c[p2])

   622 #define I521(p0, p1, p2) interp_16_521(c[p0], c[p1], c[p2])

   623 #define I53(p0, p1) interp_16_53(c[p0], c[p1])

   624 #define I611(p0, p1, p2) interp_16_611(c[p0], c[p1], c[p2])

   625 #define I71(p0, p1) interp_16_71(c[p0], c[p1])

   626 #define I772(p0, p1, p2) interp_16_772(c[p0], c[p1], c[p2])

   627 #define I97(p0, p1) interp_16_97(c[p0], c[p1])

   628 #define I1411(p0, p1, p2) interp_16_1411(c[p0], c[p1], c[p2])

   629 #define I151(p0, p1) interp_16_151(c[p0], c[p1])

   630 

   631 		switch (mask)

   632 		{

   633 #include "lq2x.h"

   634 		}

   635 

   636 #undef P0

   637 #undef P1

   638 #undef P2

   639 #undef P3

   640 #undef MUR

   641 #undef MDR

   642 #undef MDL

   643 #undef MUL

   644 #undef IC

   645 #undef I11

   646 #undef I211

   647 #undef I31

   648 #undef I332

   649 #undef I431

   650 #undef I521

   651 #undef I53

   652 #undef I611

   653 #undef I71

   654 #undef I772

   655 #undef I97

   656 #undef I1411

   657 #undef I151

   658 

   659 		src0 += 1;

   660 		src1 += 1;

   661 		src2 += 1;

   662 		dst0 += 2;

   663 		dst1 += 2;

   664 	}

   665 }

   666 

   667 static void lq2x_32_def(u32 *dst0, u32 *dst1, const u32 *src0, const u32 *src1, const u32 *src2, unsigned count)

   668 {

   669 	unsigned i;

   670 

   671 	for (i = 0; i < count; ++i)

   672 	{

   673 		unsigned char mask;

   674 

   675 		u32 c[9];

   676 

   677 		c[1] = src0[0];

   678 		c[4] = src1[0];

   679 		c[7] = src2[0];

   680 

   681 		if (i > 0)

   682 		{

   683 			c[0] = src0[-1];

   684 			c[3] = src1[-1];

   685 			c[6] = src2[-1];

   686 		}

   687 		else

   688 		{

   689 			c[0] = c[1];

   690 			c[3] = c[4];

   691 			c[6] = c[7];

   692 		}

   693 

   694 		if (i < count - 1)

   695 		{

   696 			c[2] = src0[1];

   697 			c[5] = src1[1];

   698 			c[8] = src2[1];

   699 		}

   700 		else

   701 		{

   702 			c[2] = c[1];

   703 			c[5] = c[4];

   704 			c[8] = c[7];

   705 		}

   706 

   707 		mask = 0;

   708 

   709 		if (c[0] != c[4])

   710 			mask |= 1 << 0;

   711 		if (c[1] != c[4])

   712 			mask |= 1 << 1;

   713 		if (c[2] != c[4])

   714 			mask |= 1 << 2;

   715 		if (c[3] != c[4])

   716 			mask |= 1 << 3;

   717 		if (c[5] != c[4])

   718 			mask |= 1 << 4;

   719 		if (c[6] != c[4])

   720 			mask |= 1 << 5;

   721 		if (c[7] != c[4])

   722 			mask |= 1 << 6;

   723 		if (c[8] != c[4])

   724 			mask |= 1 << 7;

   725 

   726 #define P0 dst0[0]

   727 #define P1 dst0[1]

   728 #define P2 dst1[0]

   729 #define P3 dst1[1]

   730 #define MUR (c[1] != c[5])

   731 #define MDR (c[5] != c[7])

   732 #define MDL (c[7] != c[3])

   733 #define MUL (c[3] != c[1])

   734 #define IC(p0) c[p0]

   735 #define I11(p0, p1) interp_32_11(c[p0], c[p1])

   736 #define I211(p0, p1, p2) interp_32_211(c[p0], c[p1], c[p2])

   737 #define I31(p0, p1) interp_32_31(c[p0], c[p1])

   738 #define I332(p0, p1, p2) interp_32_332(c[p0], c[p1], c[p2])

   739 #define I431(p0, p1, p2) interp_32_431(c[p0], c[p1], c[p2])

   740 #define I521(p0, p1, p2) interp_32_521(c[p0], c[p1], c[p2])

   741 #define I53(p0, p1) interp_32_53(c[p0], c[p1])

   742 #define I611(p0, p1, p2) interp_32_611(c[p0], c[p1], c[p2])

   743 #define I71(p0, p1) interp_32_71(c[p0], c[p1])

   744 #define I772(p0, p1, p2) interp_32_772(c[p0], c[p1], c[p2])

   745 #define I97(p0, p1) interp_32_97(c[p0], c[p1])

   746 #define I1411(p0, p1, p2) interp_32_1411(c[p0], c[p1], c[p2])

   747 #define I151(p0, p1) interp_32_151(c[p0], c[p1])

   748 

   749 		switch (mask)

   750 		{

   751 #include "lq2x.h"

   752 		}

   753 

   754 #undef P0

   755 #undef P1

   756 #undef P2

   757 #undef P3

   758 #undef MUR

   759 #undef MDR

   760 #undef MDL

   761 #undef MUL

   762 #undef IC

   763 #undef I11

   764 #undef I211

   765 #undef I31

   766 #undef I332

   767 #undef I431

   768 #undef I521

   769 #undef I53

   770 #undef I611

   771 #undef I71

   772 #undef I772

   773 #undef I97

   774 #undef I1411

   775 #undef I151

   776 

   777 		src0 += 1;

   778 		src1 += 1;

   779 		src2 += 1;

   780 		dst0 += 2;

   781 		dst1 += 2;

   782 	}

   783 }

   784 

   785 void hq2x(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,

   786           u8 *dstPtr, u32 dstPitch, int width, int height)

   787 {

   788 	u16 *dst0 = (u16 *)dstPtr;

   789 	u16 *dst1 = dst0 + (dstPitch >> 1);

   790 

   791 	u16 *src0 = (u16 *)srcPtr;

   792 	u16 *src1 = src0 + (srcPitch >> 1);

   793 	u16 *src2 = src1 + (srcPitch >> 1);

   794 

   795 	hq2x_16_def(dst0, dst1, src0, src0, src1, width);

   796 

   797 	int count = height;

   798 

   799 	count -= 2;

   800 	while (count)

   801 	{

   802 		dst0 += dstPitch;

   803 		dst1 += dstPitch;

   804 		hq2x_16_def(dst0, dst1, src0, src1, src2, width);

   805 		src0  = src1;

   806 		src1  = src2;

   807 		src2 += srcPitch >> 1;

   808 		--count;

   809 	}

   810 	dst0 += dstPitch;

   811 	dst1 += dstPitch;

   812 	hq2x_16_def(dst0, dst1, src0, src1, src1, width);

   813 }

   814 

   815 void hq2x32(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,

   816             u8 *dstPtr, u32 dstPitch, int width, int height)

   817 {

   818 	u32 *dst0 = (u32 *)dstPtr;

   819 	u32 *dst1 = dst0 + (dstPitch >> 2);

   820 

   821 	u32 *src0 = (u32 *)srcPtr;

   822 	u32 *src1 = src0 + (srcPitch >> 2);

   823 	u32 *src2 = src1 + (srcPitch >> 2);

   824 	hq2x_32_def(dst0, dst1, src0, src0, src1, width);

   825 

   826 	int count = height;

   827 

   828 	count -= 2;

   829 	while (count)

   830 	{

   831 		dst0 += dstPitch >> 1;

   832 		dst1 += dstPitch >> 1;

   833 		hq2x_32_def(dst0, dst1, src0, src1, src2, width);

   834 		src0  = src1;

   835 		src1  = src2;

   836 		src2 += srcPitch >> 2;

   837 		--count;

   838 	}

   839 	dst0 += dstPitch >> 1;

   840 	dst1 += dstPitch >> 1;

   841 	hq2x_32_def(dst0, dst1, src0, src1, src1, width);

   842 }

   843 

   844 void hq2xS(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,

   845            u8 *dstPtr, u32 dstPitch, int width, int height)

   846 {

   847 	u16 *dst0 = (u16 *)dstPtr;

   848 	u16 *dst1 = dst0 + (dstPitch >> 1);

   849 

   850 	u16 *src0 = (u16 *)srcPtr;

   851 	u16 *src1 = src0 + (srcPitch >> 1);

   852 	u16 *src2 = src1 + (srcPitch >> 1);

   853 

   854 	hq2xS_16_def(dst0, dst1, src0, src0, src1, width);

   855 

   856 	int count = height;

   857 

   858 	count -= 2;

   859 	while (count)

   860 	{

   861 		dst0 += dstPitch;

   862 		dst1 += dstPitch;

   863 		hq2xS_16_def(dst0, dst1, src0, src1, src2, width);

   864 		src0  = src1;

   865 		src1  = src2;

   866 		src2 += srcPitch >> 1;

   867 		--count;

   868 	}

   869 	dst0 += dstPitch;

   870 	dst1 += dstPitch;

   871 	hq2xS_16_def(dst0, dst1, src0, src1, src1, width);

   872 }

   873 

   874 void hq2xS32(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,

   875              u8 *dstPtr, u32 dstPitch, int width, int height)

   876 {

   877 	u32 *dst0 = (u32 *)dstPtr;

   878 	u32 *dst1 = dst0 + (dstPitch >> 2);

   879 

   880 	u32 *src0 = (u32 *)srcPtr;

   881 	u32 *src1 = src0 + (srcPitch >> 2);

   882 	u32 *src2 = src1 + (srcPitch >> 2);

   883 	hq2xS_32_def(dst0, dst1, src0, src0, src1, width);

   884 

   885 	int count = height;

   886 

   887 	count -= 2;

   888 	while (count)

   889 	{

   890 		dst0 += dstPitch >> 1;

   891 		dst1 += dstPitch >> 1;

   892 		hq2xS_32_def(dst0, dst1, src0, src1, src2, width);

   893 		src0  = src1;

   894 		src1  = src2;

   895 		src2 += srcPitch >> 2;

   896 		--count;

   897 	}

   898 	dst0 += dstPitch >> 1;

   899 	dst1 += dstPitch >> 1;

   900 	hq2xS_32_def(dst0, dst1, src0, src1, src1, width);

   901 }

   902 

   903 void lq2x(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,

   904           u8 *dstPtr, u32 dstPitch, int width, int height)

   905 {

   906 	u16 *dst0 = (u16 *)dstPtr;

   907 	u16 *dst1 = dst0 + (dstPitch >> 1);

   908 

   909 	u16 *src0 = (u16 *)srcPtr;

   910 	u16 *src1 = src0 + (srcPitch >> 1);

   911 	u16 *src2 = src1 + (srcPitch >> 1);

   912 

   913 	lq2x_16_def(dst0, dst1, src0, src0, src1, width);

   914 

   915 	int count = height;

   916 

   917 	count -= 2;

   918 	while (count)

   919 	{

   920 		dst0 += dstPitch;

   921 		dst1 += dstPitch;

   922 		lq2x_16_def(dst0, dst1, src0, src1, src2, width);

   923 		src0  = src1;

   924 		src1  = src2;

   925 		src2 += srcPitch >> 1;

   926 		--count;

   927 	}

   928 	dst0 += dstPitch;

   929 	dst1 += dstPitch;

   930 	lq2x_16_def(dst0, dst1, src0, src1, src1, width);

   931 }

   932 

   933 void lq2x32(u8 *srcPtr, u32 srcPitch, u8 * /* deltaPtr */,

   934             u8 *dstPtr, u32 dstPitch, int width, int height)

   935 {

   936 	u32 *dst0 = (u32 *)dstPtr;

   937 	u32 *dst1 = dst0 + (dstPitch >> 2);

   938 

   939 	u32 *src0 = (u32 *)srcPtr;

   940 	u32 *src1 = src0 + (srcPitch >> 2);

   941 	u32 *src2 = src1 + (srcPitch >> 2);

   942 	lq2x_32_def(dst0, dst1, src0, src0, src1, width);

   943 

   944 	int count = height;

   945 

   946 	count -= 2;

   947 	while (count)

   948 	{

   949 		dst0 += dstPitch >> 1;

   950 		dst1 += dstPitch >> 1;

   951 		lq2x_32_def(dst0, dst1, src0, src1, src2, width);

   952 		src0  = src1;

   953 		src1  = src2;

   954 		src2 += srcPitch >> 2;

   955 		--count;

   956 	}

   957 	dst0 += dstPitch >> 1;

   958 	dst1 += dstPitch >> 1;

   959 	lq2x_32_def(dst0, dst1, src0, src1, src1, width);

   960 }

   961 

   962 void hq2x_init(unsigned bits_per_pixel)

   963 {

   964 	interp_set(bits_per_pixel);

   965 }

   966
author	Robert McIntyre <rlm@mit.edu>
date	Sat, 03 Mar 2012 10:31:27 -0600
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