src/video/SDL_blit_N.c
changeset 0 74212992fb08
child 91 e85e03f195b4
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/video/SDL_blit_N.c	Thu Apr 26 16:45:43 2001 +0000
     1.3 @@ -0,0 +1,1607 @@
     1.4 +/*
     1.5 +    SDL - Simple DirectMedia Layer
     1.6 +    Copyright (C) 1997, 1998, 1999, 2000, 2001  Sam Lantinga
     1.7 +
     1.8 +    This library is free software; you can redistribute it and/or
     1.9 +    modify it under the terms of the GNU Library General Public
    1.10 +    License as published by the Free Software Foundation; either
    1.11 +    version 2 of the License, or (at your option) any later version.
    1.12 +
    1.13 +    This library is distributed in the hope that it will be useful,
    1.14 +    but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 +    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    1.16 +    Library General Public License for more details.
    1.17 +
    1.18 +    You should have received a copy of the GNU Library General Public
    1.19 +    License along with this library; if not, write to the Free
    1.20 +    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    1.21 +
    1.22 +    Sam Lantinga
    1.23 +    slouken@devolution.com
    1.24 +*/
    1.25 +
    1.26 +#ifdef SAVE_RCSID
    1.27 +static char rcsid =
    1.28 + "@(#) $Id$";
    1.29 +#endif
    1.30 +
    1.31 +#include <stdio.h>
    1.32 +
    1.33 +#include "SDL_types.h"
    1.34 +#include "SDL_video.h"
    1.35 +#include "SDL_blit.h"
    1.36 +#include "SDL_byteorder.h"
    1.37 +
    1.38 +/* Function to check the CPU flags */
    1.39 +#define MMX_CPU		0x800000
    1.40 +#ifdef USE_ASMBLIT
    1.41 +#define CPU_Flags()	Hermes_X86_CPU()
    1.42 +#else
    1.43 +#define CPU_Flags()	0L
    1.44 +#endif
    1.45 +
    1.46 +/* Functions to blit from N-bit surfaces to other surfaces */
    1.47 +
    1.48 +#ifdef USE_ASMBLIT
    1.49 +
    1.50 +/* Heheheh, we coerce Hermes into using SDL blit information */
    1.51 +#define X86_ASSEMBLER
    1.52 +#define HermesConverterInterface	SDL_BlitInfo
    1.53 +#define HermesClearInterface		void
    1.54 +#define STACKCALL
    1.55 +typedef Uint32 int32;
    1.56 +
    1.57 +#include "HeadMMX.h"
    1.58 +#include "HeadX86.h"
    1.59 +
    1.60 +#else
    1.61 +
    1.62 +/* This is now endian dependent */
    1.63 +#if ( SDL_BYTEORDER == SDL_LIL_ENDIAN )
    1.64 +#define HI	1
    1.65 +#define LO	0
    1.66 +#else /* ( SDL_BYTEORDER == SDL_BIG_ENDIAN ) */
    1.67 +#define HI	0
    1.68 +#define LO	1
    1.69 +#endif
    1.70 +
    1.71 +/* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */
    1.72 +#define RGB888_RGB332(dst, src) { \
    1.73 +	dst = (((src)&0x00E00000)>>16)| \
    1.74 +	      (((src)&0x0000E000)>>11)| \
    1.75 +	      (((src)&0x000000C0)>>6); \
    1.76 +}
    1.77 +static void Blit_RGB888_index8(SDL_BlitInfo *info)
    1.78 +{
    1.79 +#ifndef USE_DUFFS_LOOP
    1.80 +	int c;
    1.81 +#endif
    1.82 +	int width, height;
    1.83 +	Uint32 *src;
    1.84 +	Uint8 *map, *dst;
    1.85 +	int srcskip, dstskip;
    1.86 +
    1.87 +	/* Set up some basic variables */
    1.88 +	width = info->d_width;
    1.89 +	height = info->d_height;
    1.90 +	src = (Uint32 *)info->s_pixels;
    1.91 +	srcskip = info->s_skip/4;
    1.92 +	dst = info->d_pixels;
    1.93 +	dstskip = info->d_skip;
    1.94 +	map = info->table;
    1.95 +
    1.96 +	if ( map == NULL ) {
    1.97 +		while ( height-- ) {
    1.98 +#ifdef USE_DUFFS_LOOP
    1.99 +			DUFFS_LOOP(
   1.100 +				RGB888_RGB332(*dst++, *src);
   1.101 +			, width);
   1.102 +#else
   1.103 +			for ( c=width/4; c; --c ) {
   1.104 +				/* Pack RGB into 8bit pixel */
   1.105 +				++src;
   1.106 +				RGB888_RGB332(*dst++, *src);
   1.107 +				++src;
   1.108 +				RGB888_RGB332(*dst++, *src);
   1.109 +				++src;
   1.110 +				RGB888_RGB332(*dst++, *src);
   1.111 +				++src;
   1.112 +			}
   1.113 +			switch ( width % 4 ) {
   1.114 +				case 3:
   1.115 +					RGB888_RGB332(*dst++, *src);
   1.116 +					++src;
   1.117 +				case 2:
   1.118 +					RGB888_RGB332(*dst++, *src);
   1.119 +					++src;
   1.120 +				case 1:
   1.121 +					RGB888_RGB332(*dst++, *src);
   1.122 +					++src;
   1.123 +			}
   1.124 +#endif /* USE_DUFFS_LOOP */
   1.125 +			src += srcskip;
   1.126 +			dst += dstskip;
   1.127 +		}
   1.128 +	} else {
   1.129 +		int pixel;
   1.130 +
   1.131 +		while ( height-- ) {
   1.132 +#ifdef USE_DUFFS_LOOP
   1.133 +			DUFFS_LOOP(
   1.134 +				RGB888_RGB332(pixel, *src);
   1.135 +				*dst++ = map[pixel];
   1.136 +				++src;
   1.137 +			, width);
   1.138 +#else
   1.139 +			for ( c=width/4; c; --c ) {
   1.140 +				/* Pack RGB into 8bit pixel */
   1.141 +				RGB888_RGB332(pixel, *src);
   1.142 +				*dst++ = map[pixel];
   1.143 +				++src;
   1.144 +				RGB888_RGB332(pixel, *src);
   1.145 +				*dst++ = map[pixel];
   1.146 +				++src;
   1.147 +				RGB888_RGB332(pixel, *src);
   1.148 +				*dst++ = map[pixel];
   1.149 +				++src;
   1.150 +				RGB888_RGB332(pixel, *src);
   1.151 +				*dst++ = map[pixel];
   1.152 +				++src;
   1.153 +			}
   1.154 +			switch ( width % 4 ) {
   1.155 +				case 3:
   1.156 +					RGB888_RGB332(pixel, *src);
   1.157 +					*dst++ = map[pixel];
   1.158 +					++src;
   1.159 +				case 2:
   1.160 +					RGB888_RGB332(pixel, *src);
   1.161 +					*dst++ = map[pixel];
   1.162 +					++src;
   1.163 +				case 1:
   1.164 +					RGB888_RGB332(pixel, *src);
   1.165 +					*dst++ = map[pixel];
   1.166 +					++src;
   1.167 +			}
   1.168 +#endif /* USE_DUFFS_LOOP */
   1.169 +			src += srcskip;
   1.170 +			dst += dstskip;
   1.171 +		}
   1.172 +	}
   1.173 +}
   1.174 +/* Special optimized blit for RGB 8-8-8 --> RGB 5-5-5 */
   1.175 +#define RGB888_RGB555(dst, src) { \
   1.176 +	*(Uint16 *)(dst) = (((*src)&0x00F80000)>>9)| \
   1.177 +	                   (((*src)&0x0000F800)>>6)| \
   1.178 +	                   (((*src)&0x000000F8)>>3); \
   1.179 +}
   1.180 +#define RGB888_RGB555_TWO(dst, src) { \
   1.181 +	*(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>9)| \
   1.182 +	                     (((src[HI])&0x0000F800)>>6)| \
   1.183 +	                     (((src[HI])&0x000000F8)>>3))<<16)| \
   1.184 +	                     (((src[LO])&0x00F80000)>>9)| \
   1.185 +	                     (((src[LO])&0x0000F800)>>6)| \
   1.186 +	                     (((src[LO])&0x000000F8)>>3); \
   1.187 +}
   1.188 +static void Blit_RGB888_RGB555(SDL_BlitInfo *info)
   1.189 +{
   1.190 +#ifndef USE_DUFFS_LOOP
   1.191 +	int c;
   1.192 +#endif
   1.193 +	int width, height;
   1.194 +	Uint32 *src;
   1.195 +	Uint16 *dst;
   1.196 +	int srcskip, dstskip;
   1.197 +
   1.198 +	/* Set up some basic variables */
   1.199 +	width = info->d_width;
   1.200 +	height = info->d_height;
   1.201 +	src = (Uint32 *)info->s_pixels;
   1.202 +	srcskip = info->s_skip/4;
   1.203 +	dst = (Uint16 *)info->d_pixels;
   1.204 +	dstskip = info->d_skip/2;
   1.205 +
   1.206 +#ifdef USE_DUFFS_LOOP
   1.207 +	while ( height-- ) {
   1.208 +		DUFFS_LOOP(
   1.209 +			RGB888_RGB555(dst, src);
   1.210 +			++src;
   1.211 +			++dst;
   1.212 +		, width);
   1.213 +		src += srcskip;
   1.214 +		dst += dstskip;
   1.215 +	}
   1.216 +#else
   1.217 +	/* Memory align at 4-byte boundary, if necessary */
   1.218 +	if ( (long)dst & 0x03 ) {
   1.219 +		/* Don't do anything if width is 0 */
   1.220 +		if ( width == 0 ) {
   1.221 +			return;
   1.222 +		}
   1.223 +		--width;
   1.224 +
   1.225 +		while ( height-- ) {
   1.226 +			/* Perform copy alignment */
   1.227 +			RGB888_RGB555(dst, src);
   1.228 +			++src;
   1.229 +			++dst;
   1.230 +
   1.231 +			/* Copy in 4 pixel chunks */
   1.232 +			for ( c=width/4; c; --c ) {
   1.233 +				RGB888_RGB555_TWO(dst, src);
   1.234 +				src += 2;
   1.235 +				dst += 2;
   1.236 +				RGB888_RGB555_TWO(dst, src);
   1.237 +				src += 2;
   1.238 +				dst += 2;
   1.239 +			}
   1.240 +			/* Get any leftovers */
   1.241 +			switch (width % 4) {
   1.242 +				case 3:
   1.243 +					RGB888_RGB555(dst, src);
   1.244 +					++src;
   1.245 +					++dst;
   1.246 +				case 2:
   1.247 +					RGB888_RGB555_TWO(dst, src);
   1.248 +					src += 2;
   1.249 +					dst += 2;
   1.250 +					break;
   1.251 +				case 1:
   1.252 +					RGB888_RGB555(dst, src);
   1.253 +					++src;
   1.254 +					++dst;
   1.255 +					break;
   1.256 +			}
   1.257 +			src += srcskip;
   1.258 +			dst += dstskip;
   1.259 +		}
   1.260 +	} else { 
   1.261 +		while ( height-- ) {
   1.262 +			/* Copy in 4 pixel chunks */
   1.263 +			for ( c=width/4; c; --c ) {
   1.264 +				RGB888_RGB555_TWO(dst, src);
   1.265 +				src += 2;
   1.266 +				dst += 2;
   1.267 +				RGB888_RGB555_TWO(dst, src);
   1.268 +				src += 2;
   1.269 +				dst += 2;
   1.270 +			}
   1.271 +			/* Get any leftovers */
   1.272 +			switch (width % 4) {
   1.273 +				case 3:
   1.274 +					RGB888_RGB555(dst, src);
   1.275 +					++src;
   1.276 +					++dst;
   1.277 +				case 2:
   1.278 +					RGB888_RGB555_TWO(dst, src);
   1.279 +					src += 2;
   1.280 +					dst += 2;
   1.281 +					break;
   1.282 +				case 1:
   1.283 +					RGB888_RGB555(dst, src);
   1.284 +					++src;
   1.285 +					++dst;
   1.286 +					break;
   1.287 +			}
   1.288 +			src += srcskip;
   1.289 +			dst += dstskip;
   1.290 +		}
   1.291 +	}
   1.292 +#endif /* USE_DUFFS_LOOP */
   1.293 +}
   1.294 +/* Special optimized blit for RGB 8-8-8 --> RGB 5-6-5 */
   1.295 +#define RGB888_RGB565(dst, src) { \
   1.296 +	*(Uint16 *)(dst) = (((*src)&0x00F80000)>>8)| \
   1.297 +	                   (((*src)&0x0000FC00)>>5)| \
   1.298 +	                   (((*src)&0x000000F8)>>3); \
   1.299 +}
   1.300 +#define RGB888_RGB565_TWO(dst, src) { \
   1.301 +	*(Uint32 *)(dst) = (((((src[HI])&0x00F80000)>>8)| \
   1.302 +	                     (((src[HI])&0x0000FC00)>>5)| \
   1.303 +	                     (((src[HI])&0x000000F8)>>3))<<16)| \
   1.304 +	                     (((src[LO])&0x00F80000)>>8)| \
   1.305 +	                     (((src[LO])&0x0000FC00)>>5)| \
   1.306 +	                     (((src[LO])&0x000000F8)>>3); \
   1.307 +}
   1.308 +static void Blit_RGB888_RGB565(SDL_BlitInfo *info)
   1.309 +{
   1.310 +#ifndef USE_DUFFS_LOOP
   1.311 +	int c;
   1.312 +#endif
   1.313 +	int width, height;
   1.314 +	Uint32 *src;
   1.315 +	Uint16 *dst;
   1.316 +	int srcskip, dstskip;
   1.317 +
   1.318 +	/* Set up some basic variables */
   1.319 +	width = info->d_width;
   1.320 +	height = info->d_height;
   1.321 +	src = (Uint32 *)info->s_pixels;
   1.322 +	srcskip = info->s_skip/4;
   1.323 +	dst = (Uint16 *)info->d_pixels;
   1.324 +	dstskip = info->d_skip/2;
   1.325 +
   1.326 +#ifdef USE_DUFFS_LOOP
   1.327 +	while ( height-- ) {
   1.328 +		DUFFS_LOOP(
   1.329 +			RGB888_RGB565(dst, src);
   1.330 +			++src;
   1.331 +			++dst;
   1.332 +		, width);
   1.333 +		src += srcskip;
   1.334 +		dst += dstskip;
   1.335 +	}
   1.336 +#else
   1.337 +	/* Memory align at 4-byte boundary, if necessary */
   1.338 +	if ( (long)dst & 0x03 ) {
   1.339 +		/* Don't do anything if width is 0 */
   1.340 +		if ( width == 0 ) {
   1.341 +			return;
   1.342 +		}
   1.343 +		--width;
   1.344 +
   1.345 +		while ( height-- ) {
   1.346 +			/* Perform copy alignment */
   1.347 +			RGB888_RGB565(dst, src);
   1.348 +			++src;
   1.349 +			++dst;
   1.350 +
   1.351 +			/* Copy in 4 pixel chunks */
   1.352 +			for ( c=width/4; c; --c ) {
   1.353 +				RGB888_RGB565_TWO(dst, src);
   1.354 +				src += 2;
   1.355 +				dst += 2;
   1.356 +				RGB888_RGB565_TWO(dst, src);
   1.357 +				src += 2;
   1.358 +				dst += 2;
   1.359 +			}
   1.360 +			/* Get any leftovers */
   1.361 +			switch (width % 4) {
   1.362 +				case 3:
   1.363 +					RGB888_RGB565(dst, src);
   1.364 +					++src;
   1.365 +					++dst;
   1.366 +				case 2:
   1.367 +					RGB888_RGB565_TWO(dst, src);
   1.368 +					src += 2;
   1.369 +					dst += 2;
   1.370 +					break;
   1.371 +				case 1:
   1.372 +					RGB888_RGB565(dst, src);
   1.373 +					++src;
   1.374 +					++dst;
   1.375 +					break;
   1.376 +			}
   1.377 +			src += srcskip;
   1.378 +			dst += dstskip;
   1.379 +		}
   1.380 +	} else { 
   1.381 +		while ( height-- ) {
   1.382 +			/* Copy in 4 pixel chunks */
   1.383 +			for ( c=width/4; c; --c ) {
   1.384 +				RGB888_RGB565_TWO(dst, src);
   1.385 +				src += 2;
   1.386 +				dst += 2;
   1.387 +				RGB888_RGB565_TWO(dst, src);
   1.388 +				src += 2;
   1.389 +				dst += 2;
   1.390 +			}
   1.391 +			/* Get any leftovers */
   1.392 +			switch (width % 4) {
   1.393 +				case 3:
   1.394 +					RGB888_RGB565(dst, src);
   1.395 +					++src;
   1.396 +					++dst;
   1.397 +				case 2:
   1.398 +					RGB888_RGB565_TWO(dst, src);
   1.399 +					src += 2;
   1.400 +					dst += 2;
   1.401 +					break;
   1.402 +				case 1:
   1.403 +					RGB888_RGB565(dst, src);
   1.404 +					++src;
   1.405 +					++dst;
   1.406 +					break;
   1.407 +			}
   1.408 +			src += srcskip;
   1.409 +			dst += dstskip;
   1.410 +		}
   1.411 +	}
   1.412 +#endif /* USE_DUFFS_LOOP */
   1.413 +}
   1.414 +
   1.415 +#endif /* USE_ASMBLIT */
   1.416 +
   1.417 +
   1.418 +/* Special optimized blit for RGB 5-6-5 --> 32-bit RGB surfaces */
   1.419 +#if ( SDL_BYTEORDER == SDL_LIL_ENDIAN )
   1.420 +#define RGB565_32(dst, src, map) (map[src[0]*2] + map[src[1]*2+1])
   1.421 +#else /* ( SDL_BYTEORDER == SDL_BIG_ENDIAN ) */
   1.422 +#define RGB565_32(dst, src, map) (map[src[1]*2] + map[src[0]*2+1])
   1.423 +#endif
   1.424 +static void Blit_RGB565_32(SDL_BlitInfo *info, Uint32 *map)
   1.425 +{
   1.426 +#ifndef USE_DUFFS_LOOP
   1.427 +	int c;
   1.428 +#endif
   1.429 +	int width, height;
   1.430 +	Uint8 *src;
   1.431 +	Uint32 *dst;
   1.432 +	int srcskip, dstskip;
   1.433 +
   1.434 +	/* Set up some basic variables */
   1.435 +	width = info->d_width;
   1.436 +	height = info->d_height;
   1.437 +	src = (Uint8 *)info->s_pixels;
   1.438 +	srcskip = info->s_skip;
   1.439 +	dst = (Uint32 *)info->d_pixels;
   1.440 +	dstskip = info->d_skip/4;
   1.441 +
   1.442 +#ifdef USE_DUFFS_LOOP
   1.443 +	while ( height-- ) {
   1.444 +		DUFFS_LOOP(
   1.445 +		{
   1.446 +			*dst++ = RGB565_32(dst, src, map);
   1.447 +			src += 2;
   1.448 +		},
   1.449 +		width);
   1.450 +		src += srcskip;
   1.451 +		dst += dstskip;
   1.452 +	}
   1.453 +#else
   1.454 +	while ( height-- ) {
   1.455 +		/* Copy in 4 pixel chunks */
   1.456 +		for ( c=width/4; c; --c ) {
   1.457 +			*dst++ = RGB565_32(dst, src, map);
   1.458 +			src += 2;
   1.459 +			*dst++ = RGB565_32(dst, src, map);
   1.460 +			src += 2;
   1.461 +			*dst++ = RGB565_32(dst, src, map);
   1.462 +			src += 2;
   1.463 +			*dst++ = RGB565_32(dst, src, map);
   1.464 +			src += 2;
   1.465 +		}
   1.466 +		/* Get any leftovers */
   1.467 +		switch (width % 4) {
   1.468 +			case 3:
   1.469 +				*dst++ = RGB565_32(dst, src, map);
   1.470 +				src += 2;
   1.471 +			case 2:
   1.472 +				*dst++ = RGB565_32(dst, src, map);
   1.473 +				src += 2;
   1.474 +			case 1:
   1.475 +				*dst++ = RGB565_32(dst, src, map);
   1.476 +				src += 2;
   1.477 +				break;
   1.478 +		}
   1.479 +		src += srcskip;
   1.480 +		dst += dstskip;
   1.481 +	}
   1.482 +#endif /* USE_DUFFS_LOOP */
   1.483 +}
   1.484 +
   1.485 +/* Special optimized blit for RGB 5-6-5 --> ARGB 8-8-8-8 */
   1.486 +static Uint32 RGB565_ARGB8888_LUT[512] = {
   1.487 +		0x00000000, 0xff000000, 0x00000008, 0xff002000,
   1.488 +		0x00000010, 0xff004000, 0x00000018, 0xff006100,
   1.489 +		0x00000020, 0xff008100, 0x00000029, 0xff00a100,
   1.490 +		0x00000031, 0xff00c200, 0x00000039, 0xff00e200,
   1.491 +		0x00000041, 0xff080000, 0x0000004a, 0xff082000,
   1.492 +		0x00000052, 0xff084000, 0x0000005a, 0xff086100,
   1.493 +		0x00000062, 0xff088100, 0x0000006a, 0xff08a100,
   1.494 +		0x00000073, 0xff08c200, 0x0000007b, 0xff08e200,
   1.495 +		0x00000083, 0xff100000, 0x0000008b, 0xff102000,
   1.496 +		0x00000094, 0xff104000, 0x0000009c, 0xff106100,
   1.497 +		0x000000a4, 0xff108100, 0x000000ac, 0xff10a100,
   1.498 +		0x000000b4, 0xff10c200, 0x000000bd, 0xff10e200,
   1.499 +		0x000000c5, 0xff180000, 0x000000cd, 0xff182000,
   1.500 +		0x000000d5, 0xff184000, 0x000000de, 0xff186100,
   1.501 +		0x000000e6, 0xff188100, 0x000000ee, 0xff18a100,
   1.502 +		0x000000f6, 0xff18c200, 0x000000ff, 0xff18e200,
   1.503 +		0x00000400, 0xff200000, 0x00000408, 0xff202000,
   1.504 +		0x00000410, 0xff204000, 0x00000418, 0xff206100,
   1.505 +		0x00000420, 0xff208100, 0x00000429, 0xff20a100,
   1.506 +		0x00000431, 0xff20c200, 0x00000439, 0xff20e200,
   1.507 +		0x00000441, 0xff290000, 0x0000044a, 0xff292000,
   1.508 +		0x00000452, 0xff294000, 0x0000045a, 0xff296100,
   1.509 +		0x00000462, 0xff298100, 0x0000046a, 0xff29a100,
   1.510 +		0x00000473, 0xff29c200, 0x0000047b, 0xff29e200,
   1.511 +		0x00000483, 0xff310000, 0x0000048b, 0xff312000,
   1.512 +		0x00000494, 0xff314000, 0x0000049c, 0xff316100,
   1.513 +		0x000004a4, 0xff318100, 0x000004ac, 0xff31a100,
   1.514 +		0x000004b4, 0xff31c200, 0x000004bd, 0xff31e200,
   1.515 +		0x000004c5, 0xff390000, 0x000004cd, 0xff392000,
   1.516 +		0x000004d5, 0xff394000, 0x000004de, 0xff396100,
   1.517 +		0x000004e6, 0xff398100, 0x000004ee, 0xff39a100,
   1.518 +		0x000004f6, 0xff39c200, 0x000004ff, 0xff39e200,
   1.519 +		0x00000800, 0xff410000, 0x00000808, 0xff412000,
   1.520 +		0x00000810, 0xff414000, 0x00000818, 0xff416100,
   1.521 +		0x00000820, 0xff418100, 0x00000829, 0xff41a100,
   1.522 +		0x00000831, 0xff41c200, 0x00000839, 0xff41e200,
   1.523 +		0x00000841, 0xff4a0000, 0x0000084a, 0xff4a2000,
   1.524 +		0x00000852, 0xff4a4000, 0x0000085a, 0xff4a6100,
   1.525 +		0x00000862, 0xff4a8100, 0x0000086a, 0xff4aa100,
   1.526 +		0x00000873, 0xff4ac200, 0x0000087b, 0xff4ae200,
   1.527 +		0x00000883, 0xff520000, 0x0000088b, 0xff522000,
   1.528 +		0x00000894, 0xff524000, 0x0000089c, 0xff526100,
   1.529 +		0x000008a4, 0xff528100, 0x000008ac, 0xff52a100,
   1.530 +		0x000008b4, 0xff52c200, 0x000008bd, 0xff52e200,
   1.531 +		0x000008c5, 0xff5a0000, 0x000008cd, 0xff5a2000,
   1.532 +		0x000008d5, 0xff5a4000, 0x000008de, 0xff5a6100,
   1.533 +		0x000008e6, 0xff5a8100, 0x000008ee, 0xff5aa100,
   1.534 +		0x000008f6, 0xff5ac200, 0x000008ff, 0xff5ae200,
   1.535 +		0x00000c00, 0xff620000, 0x00000c08, 0xff622000,
   1.536 +		0x00000c10, 0xff624000, 0x00000c18, 0xff626100,
   1.537 +		0x00000c20, 0xff628100, 0x00000c29, 0xff62a100,
   1.538 +		0x00000c31, 0xff62c200, 0x00000c39, 0xff62e200,
   1.539 +		0x00000c41, 0xff6a0000, 0x00000c4a, 0xff6a2000,
   1.540 +		0x00000c52, 0xff6a4000, 0x00000c5a, 0xff6a6100,
   1.541 +		0x00000c62, 0xff6a8100, 0x00000c6a, 0xff6aa100,
   1.542 +		0x00000c73, 0xff6ac200, 0x00000c7b, 0xff6ae200,
   1.543 +		0x00000c83, 0xff730000, 0x00000c8b, 0xff732000,
   1.544 +		0x00000c94, 0xff734000, 0x00000c9c, 0xff736100,
   1.545 +		0x00000ca4, 0xff738100, 0x00000cac, 0xff73a100,
   1.546 +		0x00000cb4, 0xff73c200, 0x00000cbd, 0xff73e200,
   1.547 +		0x00000cc5, 0xff7b0000, 0x00000ccd, 0xff7b2000,
   1.548 +		0x00000cd5, 0xff7b4000, 0x00000cde, 0xff7b6100,
   1.549 +		0x00000ce6, 0xff7b8100, 0x00000cee, 0xff7ba100,
   1.550 +		0x00000cf6, 0xff7bc200, 0x00000cff, 0xff7be200,
   1.551 +		0x00001000, 0xff830000, 0x00001008, 0xff832000,
   1.552 +		0x00001010, 0xff834000, 0x00001018, 0xff836100,
   1.553 +		0x00001020, 0xff838100, 0x00001029, 0xff83a100,
   1.554 +		0x00001031, 0xff83c200, 0x00001039, 0xff83e200,
   1.555 +		0x00001041, 0xff8b0000, 0x0000104a, 0xff8b2000,
   1.556 +		0x00001052, 0xff8b4000, 0x0000105a, 0xff8b6100,
   1.557 +		0x00001062, 0xff8b8100, 0x0000106a, 0xff8ba100,
   1.558 +		0x00001073, 0xff8bc200, 0x0000107b, 0xff8be200,
   1.559 +		0x00001083, 0xff940000, 0x0000108b, 0xff942000,
   1.560 +		0x00001094, 0xff944000, 0x0000109c, 0xff946100,
   1.561 +		0x000010a4, 0xff948100, 0x000010ac, 0xff94a100,
   1.562 +		0x000010b4, 0xff94c200, 0x000010bd, 0xff94e200,
   1.563 +		0x000010c5, 0xff9c0000, 0x000010cd, 0xff9c2000,
   1.564 +		0x000010d5, 0xff9c4000, 0x000010de, 0xff9c6100,
   1.565 +		0x000010e6, 0xff9c8100, 0x000010ee, 0xff9ca100,
   1.566 +		0x000010f6, 0xff9cc200, 0x000010ff, 0xff9ce200,
   1.567 +		0x00001400, 0xffa40000, 0x00001408, 0xffa42000,
   1.568 +		0x00001410, 0xffa44000, 0x00001418, 0xffa46100,
   1.569 +		0x00001420, 0xffa48100, 0x00001429, 0xffa4a100,
   1.570 +		0x00001431, 0xffa4c200, 0x00001439, 0xffa4e200,
   1.571 +		0x00001441, 0xffac0000, 0x0000144a, 0xffac2000,
   1.572 +		0x00001452, 0xffac4000, 0x0000145a, 0xffac6100,
   1.573 +		0x00001462, 0xffac8100, 0x0000146a, 0xffaca100,
   1.574 +		0x00001473, 0xffacc200, 0x0000147b, 0xfface200,
   1.575 +		0x00001483, 0xffb40000, 0x0000148b, 0xffb42000,
   1.576 +		0x00001494, 0xffb44000, 0x0000149c, 0xffb46100,
   1.577 +		0x000014a4, 0xffb48100, 0x000014ac, 0xffb4a100,
   1.578 +		0x000014b4, 0xffb4c200, 0x000014bd, 0xffb4e200,
   1.579 +		0x000014c5, 0xffbd0000, 0x000014cd, 0xffbd2000,
   1.580 +		0x000014d5, 0xffbd4000, 0x000014de, 0xffbd6100,
   1.581 +		0x000014e6, 0xffbd8100, 0x000014ee, 0xffbda100,
   1.582 +		0x000014f6, 0xffbdc200, 0x000014ff, 0xffbde200,
   1.583 +		0x00001800, 0xffc50000, 0x00001808, 0xffc52000,
   1.584 +		0x00001810, 0xffc54000, 0x00001818, 0xffc56100,
   1.585 +		0x00001820, 0xffc58100, 0x00001829, 0xffc5a100,
   1.586 +		0x00001831, 0xffc5c200, 0x00001839, 0xffc5e200,
   1.587 +		0x00001841, 0xffcd0000, 0x0000184a, 0xffcd2000,
   1.588 +		0x00001852, 0xffcd4000, 0x0000185a, 0xffcd6100,
   1.589 +		0x00001862, 0xffcd8100, 0x0000186a, 0xffcda100,
   1.590 +		0x00001873, 0xffcdc200, 0x0000187b, 0xffcde200,
   1.591 +		0x00001883, 0xffd50000, 0x0000188b, 0xffd52000,
   1.592 +		0x00001894, 0xffd54000, 0x0000189c, 0xffd56100,
   1.593 +		0x000018a4, 0xffd58100, 0x000018ac, 0xffd5a100,
   1.594 +		0x000018b4, 0xffd5c200, 0x000018bd, 0xffd5e200,
   1.595 +		0x000018c5, 0xffde0000, 0x000018cd, 0xffde2000,
   1.596 +		0x000018d5, 0xffde4000, 0x000018de, 0xffde6100,
   1.597 +		0x000018e6, 0xffde8100, 0x000018ee, 0xffdea100,
   1.598 +		0x000018f6, 0xffdec200, 0x000018ff, 0xffdee200,
   1.599 +		0x00001c00, 0xffe60000, 0x00001c08, 0xffe62000,
   1.600 +		0x00001c10, 0xffe64000, 0x00001c18, 0xffe66100,
   1.601 +		0x00001c20, 0xffe68100, 0x00001c29, 0xffe6a100,
   1.602 +		0x00001c31, 0xffe6c200, 0x00001c39, 0xffe6e200,
   1.603 +		0x00001c41, 0xffee0000, 0x00001c4a, 0xffee2000,
   1.604 +		0x00001c52, 0xffee4000, 0x00001c5a, 0xffee6100,
   1.605 +		0x00001c62, 0xffee8100, 0x00001c6a, 0xffeea100,
   1.606 +		0x00001c73, 0xffeec200, 0x00001c7b, 0xffeee200,
   1.607 +		0x00001c83, 0xfff60000, 0x00001c8b, 0xfff62000,
   1.608 +		0x00001c94, 0xfff64000, 0x00001c9c, 0xfff66100,
   1.609 +		0x00001ca4, 0xfff68100, 0x00001cac, 0xfff6a100,
   1.610 +		0x00001cb4, 0xfff6c200, 0x00001cbd, 0xfff6e200,
   1.611 +		0x00001cc5, 0xffff0000, 0x00001ccd, 0xffff2000,
   1.612 +		0x00001cd5, 0xffff4000, 0x00001cde, 0xffff6100,
   1.613 +		0x00001ce6, 0xffff8100, 0x00001cee, 0xffffa100,
   1.614 +		0x00001cf6, 0xffffc200, 0x00001cff, 0xffffe200
   1.615 +};
   1.616 +static void Blit_RGB565_ARGB8888(SDL_BlitInfo *info)
   1.617 +{
   1.618 +    Blit_RGB565_32(info, RGB565_ARGB8888_LUT);
   1.619 +}
   1.620 +
   1.621 +/* Special optimized blit for RGB 5-6-5 --> ABGR 8-8-8-8 */
   1.622 +static Uint32 RGB565_ABGR8888_LUT[512] = {
   1.623 +		0xff000000, 0x00000000, 0xff080000, 0x00002000,
   1.624 +		0xff100000, 0x00004000, 0xff180000, 0x00006100,
   1.625 +		0xff200000, 0x00008100, 0xff290000, 0x0000a100,
   1.626 +		0xff310000, 0x0000c200, 0xff390000, 0x0000e200,
   1.627 +		0xff410000, 0x00000008, 0xff4a0000, 0x00002008,
   1.628 +		0xff520000, 0x00004008, 0xff5a0000, 0x00006108,
   1.629 +		0xff620000, 0x00008108, 0xff6a0000, 0x0000a108,
   1.630 +		0xff730000, 0x0000c208, 0xff7b0000, 0x0000e208,
   1.631 +		0xff830000, 0x00000010, 0xff8b0000, 0x00002010,
   1.632 +		0xff940000, 0x00004010, 0xff9c0000, 0x00006110,
   1.633 +		0xffa40000, 0x00008110, 0xffac0000, 0x0000a110,
   1.634 +		0xffb40000, 0x0000c210, 0xffbd0000, 0x0000e210,
   1.635 +		0xffc50000, 0x00000018, 0xffcd0000, 0x00002018,
   1.636 +		0xffd50000, 0x00004018, 0xffde0000, 0x00006118,
   1.637 +		0xffe60000, 0x00008118, 0xffee0000, 0x0000a118,
   1.638 +		0xfff60000, 0x0000c218, 0xffff0000, 0x0000e218,
   1.639 +		0xff000400, 0x00000020, 0xff080400, 0x00002020,
   1.640 +		0xff100400, 0x00004020, 0xff180400, 0x00006120,
   1.641 +		0xff200400, 0x00008120, 0xff290400, 0x0000a120,
   1.642 +		0xff310400, 0x0000c220, 0xff390400, 0x0000e220,
   1.643 +		0xff410400, 0x00000029, 0xff4a0400, 0x00002029,
   1.644 +		0xff520400, 0x00004029, 0xff5a0400, 0x00006129,
   1.645 +		0xff620400, 0x00008129, 0xff6a0400, 0x0000a129,
   1.646 +		0xff730400, 0x0000c229, 0xff7b0400, 0x0000e229,
   1.647 +		0xff830400, 0x00000031, 0xff8b0400, 0x00002031,
   1.648 +		0xff940400, 0x00004031, 0xff9c0400, 0x00006131,
   1.649 +		0xffa40400, 0x00008131, 0xffac0400, 0x0000a131,
   1.650 +		0xffb40400, 0x0000c231, 0xffbd0400, 0x0000e231,
   1.651 +		0xffc50400, 0x00000039, 0xffcd0400, 0x00002039,
   1.652 +		0xffd50400, 0x00004039, 0xffde0400, 0x00006139,
   1.653 +		0xffe60400, 0x00008139, 0xffee0400, 0x0000a139,
   1.654 +		0xfff60400, 0x0000c239, 0xffff0400, 0x0000e239,
   1.655 +		0xff000800, 0x00000041, 0xff080800, 0x00002041,
   1.656 +		0xff100800, 0x00004041, 0xff180800, 0x00006141,
   1.657 +		0xff200800, 0x00008141, 0xff290800, 0x0000a141,
   1.658 +		0xff310800, 0x0000c241, 0xff390800, 0x0000e241,
   1.659 +		0xff410800, 0x0000004a, 0xff4a0800, 0x0000204a,
   1.660 +		0xff520800, 0x0000404a, 0xff5a0800, 0x0000614a,
   1.661 +		0xff620800, 0x0000814a, 0xff6a0800, 0x0000a14a,
   1.662 +		0xff730800, 0x0000c24a, 0xff7b0800, 0x0000e24a,
   1.663 +		0xff830800, 0x00000052, 0xff8b0800, 0x00002052,
   1.664 +		0xff940800, 0x00004052, 0xff9c0800, 0x00006152,
   1.665 +		0xffa40800, 0x00008152, 0xffac0800, 0x0000a152,
   1.666 +		0xffb40800, 0x0000c252, 0xffbd0800, 0x0000e252,
   1.667 +		0xffc50800, 0x0000005a, 0xffcd0800, 0x0000205a,
   1.668 +		0xffd50800, 0x0000405a, 0xffde0800, 0x0000615a,
   1.669 +		0xffe60800, 0x0000815a, 0xffee0800, 0x0000a15a,
   1.670 +		0xfff60800, 0x0000c25a, 0xffff0800, 0x0000e25a,
   1.671 +		0xff000c00, 0x00000062, 0xff080c00, 0x00002062,
   1.672 +		0xff100c00, 0x00004062, 0xff180c00, 0x00006162,
   1.673 +		0xff200c00, 0x00008162, 0xff290c00, 0x0000a162,
   1.674 +		0xff310c00, 0x0000c262, 0xff390c00, 0x0000e262,
   1.675 +		0xff410c00, 0x0000006a, 0xff4a0c00, 0x0000206a,
   1.676 +		0xff520c00, 0x0000406a, 0xff5a0c00, 0x0000616a,
   1.677 +		0xff620c00, 0x0000816a, 0xff6a0c00, 0x0000a16a,
   1.678 +		0xff730c00, 0x0000c26a, 0xff7b0c00, 0x0000e26a,
   1.679 +		0xff830c00, 0x00000073, 0xff8b0c00, 0x00002073,
   1.680 +		0xff940c00, 0x00004073, 0xff9c0c00, 0x00006173,
   1.681 +		0xffa40c00, 0x00008173, 0xffac0c00, 0x0000a173,
   1.682 +		0xffb40c00, 0x0000c273, 0xffbd0c00, 0x0000e273,
   1.683 +		0xffc50c00, 0x0000007b, 0xffcd0c00, 0x0000207b,
   1.684 +		0xffd50c00, 0x0000407b, 0xffde0c00, 0x0000617b,
   1.685 +		0xffe60c00, 0x0000817b, 0xffee0c00, 0x0000a17b,
   1.686 +		0xfff60c00, 0x0000c27b, 0xffff0c00, 0x0000e27b,
   1.687 +		0xff001000, 0x00000083, 0xff081000, 0x00002083,
   1.688 +		0xff101000, 0x00004083, 0xff181000, 0x00006183,
   1.689 +		0xff201000, 0x00008183, 0xff291000, 0x0000a183,
   1.690 +		0xff311000, 0x0000c283, 0xff391000, 0x0000e283,
   1.691 +		0xff411000, 0x0000008b, 0xff4a1000, 0x0000208b,
   1.692 +		0xff521000, 0x0000408b, 0xff5a1000, 0x0000618b,
   1.693 +		0xff621000, 0x0000818b, 0xff6a1000, 0x0000a18b,
   1.694 +		0xff731000, 0x0000c28b, 0xff7b1000, 0x0000e28b,
   1.695 +		0xff831000, 0x00000094, 0xff8b1000, 0x00002094,
   1.696 +		0xff941000, 0x00004094, 0xff9c1000, 0x00006194,
   1.697 +		0xffa41000, 0x00008194, 0xffac1000, 0x0000a194,
   1.698 +		0xffb41000, 0x0000c294, 0xffbd1000, 0x0000e294,
   1.699 +		0xffc51000, 0x0000009c, 0xffcd1000, 0x0000209c,
   1.700 +		0xffd51000, 0x0000409c, 0xffde1000, 0x0000619c,
   1.701 +		0xffe61000, 0x0000819c, 0xffee1000, 0x0000a19c,
   1.702 +		0xfff61000, 0x0000c29c, 0xffff1000, 0x0000e29c,
   1.703 +		0xff001400, 0x000000a4, 0xff081400, 0x000020a4,
   1.704 +		0xff101400, 0x000040a4, 0xff181400, 0x000061a4,
   1.705 +		0xff201400, 0x000081a4, 0xff291400, 0x0000a1a4,
   1.706 +		0xff311400, 0x0000c2a4, 0xff391400, 0x0000e2a4,
   1.707 +		0xff411400, 0x000000ac, 0xff4a1400, 0x000020ac,
   1.708 +		0xff521400, 0x000040ac, 0xff5a1400, 0x000061ac,
   1.709 +		0xff621400, 0x000081ac, 0xff6a1400, 0x0000a1ac,
   1.710 +		0xff731400, 0x0000c2ac, 0xff7b1400, 0x0000e2ac,
   1.711 +		0xff831400, 0x000000b4, 0xff8b1400, 0x000020b4,
   1.712 +		0xff941400, 0x000040b4, 0xff9c1400, 0x000061b4,
   1.713 +		0xffa41400, 0x000081b4, 0xffac1400, 0x0000a1b4,
   1.714 +		0xffb41400, 0x0000c2b4, 0xffbd1400, 0x0000e2b4,
   1.715 +		0xffc51400, 0x000000bd, 0xffcd1400, 0x000020bd,
   1.716 +		0xffd51400, 0x000040bd, 0xffde1400, 0x000061bd,
   1.717 +		0xffe61400, 0x000081bd, 0xffee1400, 0x0000a1bd,
   1.718 +		0xfff61400, 0x0000c2bd, 0xffff1400, 0x0000e2bd,
   1.719 +		0xff001800, 0x000000c5, 0xff081800, 0x000020c5,
   1.720 +		0xff101800, 0x000040c5, 0xff181800, 0x000061c5,
   1.721 +		0xff201800, 0x000081c5, 0xff291800, 0x0000a1c5,
   1.722 +		0xff311800, 0x0000c2c5, 0xff391800, 0x0000e2c5,
   1.723 +		0xff411800, 0x000000cd, 0xff4a1800, 0x000020cd,
   1.724 +		0xff521800, 0x000040cd, 0xff5a1800, 0x000061cd,
   1.725 +		0xff621800, 0x000081cd, 0xff6a1800, 0x0000a1cd,
   1.726 +		0xff731800, 0x0000c2cd, 0xff7b1800, 0x0000e2cd,
   1.727 +		0xff831800, 0x000000d5, 0xff8b1800, 0x000020d5,
   1.728 +		0xff941800, 0x000040d5, 0xff9c1800, 0x000061d5,
   1.729 +		0xffa41800, 0x000081d5, 0xffac1800, 0x0000a1d5,
   1.730 +		0xffb41800, 0x0000c2d5, 0xffbd1800, 0x0000e2d5,
   1.731 +		0xffc51800, 0x000000de, 0xffcd1800, 0x000020de,
   1.732 +		0xffd51800, 0x000040de, 0xffde1800, 0x000061de,
   1.733 +		0xffe61800, 0x000081de, 0xffee1800, 0x0000a1de,
   1.734 +		0xfff61800, 0x0000c2de, 0xffff1800, 0x0000e2de,
   1.735 +		0xff001c00, 0x000000e6, 0xff081c00, 0x000020e6,
   1.736 +		0xff101c00, 0x000040e6, 0xff181c00, 0x000061e6,
   1.737 +		0xff201c00, 0x000081e6, 0xff291c00, 0x0000a1e6,
   1.738 +		0xff311c00, 0x0000c2e6, 0xff391c00, 0x0000e2e6,
   1.739 +		0xff411c00, 0x000000ee, 0xff4a1c00, 0x000020ee,
   1.740 +		0xff521c00, 0x000040ee, 0xff5a1c00, 0x000061ee,
   1.741 +		0xff621c00, 0x000081ee, 0xff6a1c00, 0x0000a1ee,
   1.742 +		0xff731c00, 0x0000c2ee, 0xff7b1c00, 0x0000e2ee,
   1.743 +		0xff831c00, 0x000000f6, 0xff8b1c00, 0x000020f6,
   1.744 +		0xff941c00, 0x000040f6, 0xff9c1c00, 0x000061f6,
   1.745 +		0xffa41c00, 0x000081f6, 0xffac1c00, 0x0000a1f6,
   1.746 +		0xffb41c00, 0x0000c2f6, 0xffbd1c00, 0x0000e2f6,
   1.747 +		0xffc51c00, 0x000000ff, 0xffcd1c00, 0x000020ff,
   1.748 +		0xffd51c00, 0x000040ff, 0xffde1c00, 0x000061ff,
   1.749 +		0xffe61c00, 0x000081ff, 0xffee1c00, 0x0000a1ff,
   1.750 +		0xfff61c00, 0x0000c2ff, 0xffff1c00, 0x0000e2ff
   1.751 +};
   1.752 +static void Blit_RGB565_ABGR8888(SDL_BlitInfo *info)
   1.753 +{
   1.754 +    Blit_RGB565_32(info, RGB565_ABGR8888_LUT);
   1.755 +}
   1.756 +
   1.757 +/* Special optimized blit for RGB 5-6-5 --> RGBA 8-8-8-8 */
   1.758 +static Uint32 RGB565_RGBA8888_LUT[512] = {
   1.759 +		0x000000ff, 0x00000000, 0x000008ff, 0x00200000,
   1.760 +		0x000010ff, 0x00400000, 0x000018ff, 0x00610000,
   1.761 +		0x000020ff, 0x00810000, 0x000029ff, 0x00a10000,
   1.762 +		0x000031ff, 0x00c20000, 0x000039ff, 0x00e20000,
   1.763 +		0x000041ff, 0x08000000, 0x00004aff, 0x08200000,
   1.764 +		0x000052ff, 0x08400000, 0x00005aff, 0x08610000,
   1.765 +		0x000062ff, 0x08810000, 0x00006aff, 0x08a10000,
   1.766 +		0x000073ff, 0x08c20000, 0x00007bff, 0x08e20000,
   1.767 +		0x000083ff, 0x10000000, 0x00008bff, 0x10200000,
   1.768 +		0x000094ff, 0x10400000, 0x00009cff, 0x10610000,
   1.769 +		0x0000a4ff, 0x10810000, 0x0000acff, 0x10a10000,
   1.770 +		0x0000b4ff, 0x10c20000, 0x0000bdff, 0x10e20000,
   1.771 +		0x0000c5ff, 0x18000000, 0x0000cdff, 0x18200000,
   1.772 +		0x0000d5ff, 0x18400000, 0x0000deff, 0x18610000,
   1.773 +		0x0000e6ff, 0x18810000, 0x0000eeff, 0x18a10000,
   1.774 +		0x0000f6ff, 0x18c20000, 0x0000ffff, 0x18e20000,
   1.775 +		0x000400ff, 0x20000000, 0x000408ff, 0x20200000,
   1.776 +		0x000410ff, 0x20400000, 0x000418ff, 0x20610000,
   1.777 +		0x000420ff, 0x20810000, 0x000429ff, 0x20a10000,
   1.778 +		0x000431ff, 0x20c20000, 0x000439ff, 0x20e20000,
   1.779 +		0x000441ff, 0x29000000, 0x00044aff, 0x29200000,
   1.780 +		0x000452ff, 0x29400000, 0x00045aff, 0x29610000,
   1.781 +		0x000462ff, 0x29810000, 0x00046aff, 0x29a10000,
   1.782 +		0x000473ff, 0x29c20000, 0x00047bff, 0x29e20000,
   1.783 +		0x000483ff, 0x31000000, 0x00048bff, 0x31200000,
   1.784 +		0x000494ff, 0x31400000, 0x00049cff, 0x31610000,
   1.785 +		0x0004a4ff, 0x31810000, 0x0004acff, 0x31a10000,
   1.786 +		0x0004b4ff, 0x31c20000, 0x0004bdff, 0x31e20000,
   1.787 +		0x0004c5ff, 0x39000000, 0x0004cdff, 0x39200000,
   1.788 +		0x0004d5ff, 0x39400000, 0x0004deff, 0x39610000,
   1.789 +		0x0004e6ff, 0x39810000, 0x0004eeff, 0x39a10000,
   1.790 +		0x0004f6ff, 0x39c20000, 0x0004ffff, 0x39e20000,
   1.791 +		0x000800ff, 0x41000000, 0x000808ff, 0x41200000,
   1.792 +		0x000810ff, 0x41400000, 0x000818ff, 0x41610000,
   1.793 +		0x000820ff, 0x41810000, 0x000829ff, 0x41a10000,
   1.794 +		0x000831ff, 0x41c20000, 0x000839ff, 0x41e20000,
   1.795 +		0x000841ff, 0x4a000000, 0x00084aff, 0x4a200000,
   1.796 +		0x000852ff, 0x4a400000, 0x00085aff, 0x4a610000,
   1.797 +		0x000862ff, 0x4a810000, 0x00086aff, 0x4aa10000,
   1.798 +		0x000873ff, 0x4ac20000, 0x00087bff, 0x4ae20000,
   1.799 +		0x000883ff, 0x52000000, 0x00088bff, 0x52200000,
   1.800 +		0x000894ff, 0x52400000, 0x00089cff, 0x52610000,
   1.801 +		0x0008a4ff, 0x52810000, 0x0008acff, 0x52a10000,
   1.802 +		0x0008b4ff, 0x52c20000, 0x0008bdff, 0x52e20000,
   1.803 +		0x0008c5ff, 0x5a000000, 0x0008cdff, 0x5a200000,
   1.804 +		0x0008d5ff, 0x5a400000, 0x0008deff, 0x5a610000,
   1.805 +		0x0008e6ff, 0x5a810000, 0x0008eeff, 0x5aa10000,
   1.806 +		0x0008f6ff, 0x5ac20000, 0x0008ffff, 0x5ae20000,
   1.807 +		0x000c00ff, 0x62000000, 0x000c08ff, 0x62200000,
   1.808 +		0x000c10ff, 0x62400000, 0x000c18ff, 0x62610000,
   1.809 +		0x000c20ff, 0x62810000, 0x000c29ff, 0x62a10000,
   1.810 +		0x000c31ff, 0x62c20000, 0x000c39ff, 0x62e20000,
   1.811 +		0x000c41ff, 0x6a000000, 0x000c4aff, 0x6a200000,
   1.812 +		0x000c52ff, 0x6a400000, 0x000c5aff, 0x6a610000,
   1.813 +		0x000c62ff, 0x6a810000, 0x000c6aff, 0x6aa10000,
   1.814 +		0x000c73ff, 0x6ac20000, 0x000c7bff, 0x6ae20000,
   1.815 +		0x000c83ff, 0x73000000, 0x000c8bff, 0x73200000,
   1.816 +		0x000c94ff, 0x73400000, 0x000c9cff, 0x73610000,
   1.817 +		0x000ca4ff, 0x73810000, 0x000cacff, 0x73a10000,
   1.818 +		0x000cb4ff, 0x73c20000, 0x000cbdff, 0x73e20000,
   1.819 +		0x000cc5ff, 0x7b000000, 0x000ccdff, 0x7b200000,
   1.820 +		0x000cd5ff, 0x7b400000, 0x000cdeff, 0x7b610000,
   1.821 +		0x000ce6ff, 0x7b810000, 0x000ceeff, 0x7ba10000,
   1.822 +		0x000cf6ff, 0x7bc20000, 0x000cffff, 0x7be20000,
   1.823 +		0x001000ff, 0x83000000, 0x001008ff, 0x83200000,
   1.824 +		0x001010ff, 0x83400000, 0x001018ff, 0x83610000,
   1.825 +		0x001020ff, 0x83810000, 0x001029ff, 0x83a10000,
   1.826 +		0x001031ff, 0x83c20000, 0x001039ff, 0x83e20000,
   1.827 +		0x001041ff, 0x8b000000, 0x00104aff, 0x8b200000,
   1.828 +		0x001052ff, 0x8b400000, 0x00105aff, 0x8b610000,
   1.829 +		0x001062ff, 0x8b810000, 0x00106aff, 0x8ba10000,
   1.830 +		0x001073ff, 0x8bc20000, 0x00107bff, 0x8be20000,
   1.831 +		0x001083ff, 0x94000000, 0x00108bff, 0x94200000,
   1.832 +		0x001094ff, 0x94400000, 0x00109cff, 0x94610000,
   1.833 +		0x0010a4ff, 0x94810000, 0x0010acff, 0x94a10000,
   1.834 +		0x0010b4ff, 0x94c20000, 0x0010bdff, 0x94e20000,
   1.835 +		0x0010c5ff, 0x9c000000, 0x0010cdff, 0x9c200000,
   1.836 +		0x0010d5ff, 0x9c400000, 0x0010deff, 0x9c610000,
   1.837 +		0x0010e6ff, 0x9c810000, 0x0010eeff, 0x9ca10000,
   1.838 +		0x0010f6ff, 0x9cc20000, 0x0010ffff, 0x9ce20000,
   1.839 +		0x001400ff, 0xa4000000, 0x001408ff, 0xa4200000,
   1.840 +		0x001410ff, 0xa4400000, 0x001418ff, 0xa4610000,
   1.841 +		0x001420ff, 0xa4810000, 0x001429ff, 0xa4a10000,
   1.842 +		0x001431ff, 0xa4c20000, 0x001439ff, 0xa4e20000,
   1.843 +		0x001441ff, 0xac000000, 0x00144aff, 0xac200000,
   1.844 +		0x001452ff, 0xac400000, 0x00145aff, 0xac610000,
   1.845 +		0x001462ff, 0xac810000, 0x00146aff, 0xaca10000,
   1.846 +		0x001473ff, 0xacc20000, 0x00147bff, 0xace20000,
   1.847 +		0x001483ff, 0xb4000000, 0x00148bff, 0xb4200000,
   1.848 +		0x001494ff, 0xb4400000, 0x00149cff, 0xb4610000,
   1.849 +		0x0014a4ff, 0xb4810000, 0x0014acff, 0xb4a10000,
   1.850 +		0x0014b4ff, 0xb4c20000, 0x0014bdff, 0xb4e20000,
   1.851 +		0x0014c5ff, 0xbd000000, 0x0014cdff, 0xbd200000,
   1.852 +		0x0014d5ff, 0xbd400000, 0x0014deff, 0xbd610000,
   1.853 +		0x0014e6ff, 0xbd810000, 0x0014eeff, 0xbda10000,
   1.854 +		0x0014f6ff, 0xbdc20000, 0x0014ffff, 0xbde20000,
   1.855 +		0x001800ff, 0xc5000000, 0x001808ff, 0xc5200000,
   1.856 +		0x001810ff, 0xc5400000, 0x001818ff, 0xc5610000,
   1.857 +		0x001820ff, 0xc5810000, 0x001829ff, 0xc5a10000,
   1.858 +		0x001831ff, 0xc5c20000, 0x001839ff, 0xc5e20000,
   1.859 +		0x001841ff, 0xcd000000, 0x00184aff, 0xcd200000,
   1.860 +		0x001852ff, 0xcd400000, 0x00185aff, 0xcd610000,
   1.861 +		0x001862ff, 0xcd810000, 0x00186aff, 0xcda10000,
   1.862 +		0x001873ff, 0xcdc20000, 0x00187bff, 0xcde20000,
   1.863 +		0x001883ff, 0xd5000000, 0x00188bff, 0xd5200000,
   1.864 +		0x001894ff, 0xd5400000, 0x00189cff, 0xd5610000,
   1.865 +		0x0018a4ff, 0xd5810000, 0x0018acff, 0xd5a10000,
   1.866 +		0x0018b4ff, 0xd5c20000, 0x0018bdff, 0xd5e20000,
   1.867 +		0x0018c5ff, 0xde000000, 0x0018cdff, 0xde200000,
   1.868 +		0x0018d5ff, 0xde400000, 0x0018deff, 0xde610000,
   1.869 +		0x0018e6ff, 0xde810000, 0x0018eeff, 0xdea10000,
   1.870 +		0x0018f6ff, 0xdec20000, 0x0018ffff, 0xdee20000,
   1.871 +		0x001c00ff, 0xe6000000, 0x001c08ff, 0xe6200000,
   1.872 +		0x001c10ff, 0xe6400000, 0x001c18ff, 0xe6610000,
   1.873 +		0x001c20ff, 0xe6810000, 0x001c29ff, 0xe6a10000,
   1.874 +		0x001c31ff, 0xe6c20000, 0x001c39ff, 0xe6e20000,
   1.875 +		0x001c41ff, 0xee000000, 0x001c4aff, 0xee200000,
   1.876 +		0x001c52ff, 0xee400000, 0x001c5aff, 0xee610000,
   1.877 +		0x001c62ff, 0xee810000, 0x001c6aff, 0xeea10000,
   1.878 +		0x001c73ff, 0xeec20000, 0x001c7bff, 0xeee20000,
   1.879 +		0x001c83ff, 0xf6000000, 0x001c8bff, 0xf6200000,
   1.880 +		0x001c94ff, 0xf6400000, 0x001c9cff, 0xf6610000,
   1.881 +		0x001ca4ff, 0xf6810000, 0x001cacff, 0xf6a10000,
   1.882 +		0x001cb4ff, 0xf6c20000, 0x001cbdff, 0xf6e20000,
   1.883 +		0x001cc5ff, 0xff000000, 0x001ccdff, 0xff200000,
   1.884 +		0x001cd5ff, 0xff400000, 0x001cdeff, 0xff610000,
   1.885 +		0x001ce6ff, 0xff810000, 0x001ceeff, 0xffa10000,
   1.886 +		0x001cf6ff, 0xffc20000, 0x001cffff, 0xffe20000,
   1.887 +};
   1.888 +static void Blit_RGB565_RGBA8888(SDL_BlitInfo *info)
   1.889 +{
   1.890 +    Blit_RGB565_32(info, RGB565_RGBA8888_LUT);
   1.891 +}
   1.892 +
   1.893 +/* Special optimized blit for RGB 5-6-5 --> BGRA 8-8-8-8 */
   1.894 +static Uint32 RGB565_BGRA8888_LUT[512] = {
   1.895 +		0x00000000, 0x000000ff, 0x08000000, 0x002000ff,
   1.896 +		0x10000000, 0x004000ff, 0x18000000, 0x006100ff,
   1.897 +		0x20000000, 0x008100ff, 0x29000000, 0x00a100ff,
   1.898 +		0x31000000, 0x00c200ff, 0x39000000, 0x00e200ff,
   1.899 +		0x41000000, 0x000008ff, 0x4a000000, 0x002008ff,
   1.900 +		0x52000000, 0x004008ff, 0x5a000000, 0x006108ff,
   1.901 +		0x62000000, 0x008108ff, 0x6a000000, 0x00a108ff,
   1.902 +		0x73000000, 0x00c208ff, 0x7b000000, 0x00e208ff,
   1.903 +		0x83000000, 0x000010ff, 0x8b000000, 0x002010ff,
   1.904 +		0x94000000, 0x004010ff, 0x9c000000, 0x006110ff,
   1.905 +		0xa4000000, 0x008110ff, 0xac000000, 0x00a110ff,
   1.906 +		0xb4000000, 0x00c210ff, 0xbd000000, 0x00e210ff,
   1.907 +		0xc5000000, 0x000018ff, 0xcd000000, 0x002018ff,
   1.908 +		0xd5000000, 0x004018ff, 0xde000000, 0x006118ff,
   1.909 +		0xe6000000, 0x008118ff, 0xee000000, 0x00a118ff,
   1.910 +		0xf6000000, 0x00c218ff, 0xff000000, 0x00e218ff,
   1.911 +		0x00040000, 0x000020ff, 0x08040000, 0x002020ff,
   1.912 +		0x10040000, 0x004020ff, 0x18040000, 0x006120ff,
   1.913 +		0x20040000, 0x008120ff, 0x29040000, 0x00a120ff,
   1.914 +		0x31040000, 0x00c220ff, 0x39040000, 0x00e220ff,
   1.915 +		0x41040000, 0x000029ff, 0x4a040000, 0x002029ff,
   1.916 +		0x52040000, 0x004029ff, 0x5a040000, 0x006129ff,
   1.917 +		0x62040000, 0x008129ff, 0x6a040000, 0x00a129ff,
   1.918 +		0x73040000, 0x00c229ff, 0x7b040000, 0x00e229ff,
   1.919 +		0x83040000, 0x000031ff, 0x8b040000, 0x002031ff,
   1.920 +		0x94040000, 0x004031ff, 0x9c040000, 0x006131ff,
   1.921 +		0xa4040000, 0x008131ff, 0xac040000, 0x00a131ff,
   1.922 +		0xb4040000, 0x00c231ff, 0xbd040000, 0x00e231ff,
   1.923 +		0xc5040000, 0x000039ff, 0xcd040000, 0x002039ff,
   1.924 +		0xd5040000, 0x004039ff, 0xde040000, 0x006139ff,
   1.925 +		0xe6040000, 0x008139ff, 0xee040000, 0x00a139ff,
   1.926 +		0xf6040000, 0x00c239ff, 0xff040000, 0x00e239ff,
   1.927 +		0x00080000, 0x000041ff, 0x08080000, 0x002041ff,
   1.928 +		0x10080000, 0x004041ff, 0x18080000, 0x006141ff,
   1.929 +		0x20080000, 0x008141ff, 0x29080000, 0x00a141ff,
   1.930 +		0x31080000, 0x00c241ff, 0x39080000, 0x00e241ff,
   1.931 +		0x41080000, 0x00004aff, 0x4a080000, 0x00204aff,
   1.932 +		0x52080000, 0x00404aff, 0x5a080000, 0x00614aff,
   1.933 +		0x62080000, 0x00814aff, 0x6a080000, 0x00a14aff,
   1.934 +		0x73080000, 0x00c24aff, 0x7b080000, 0x00e24aff,
   1.935 +		0x83080000, 0x000052ff, 0x8b080000, 0x002052ff,
   1.936 +		0x94080000, 0x004052ff, 0x9c080000, 0x006152ff,
   1.937 +		0xa4080000, 0x008152ff, 0xac080000, 0x00a152ff,
   1.938 +		0xb4080000, 0x00c252ff, 0xbd080000, 0x00e252ff,
   1.939 +		0xc5080000, 0x00005aff, 0xcd080000, 0x00205aff,
   1.940 +		0xd5080000, 0x00405aff, 0xde080000, 0x00615aff,
   1.941 +		0xe6080000, 0x00815aff, 0xee080000, 0x00a15aff,
   1.942 +		0xf6080000, 0x00c25aff, 0xff080000, 0x00e25aff,
   1.943 +		0x000c0000, 0x000062ff, 0x080c0000, 0x002062ff,
   1.944 +		0x100c0000, 0x004062ff, 0x180c0000, 0x006162ff,
   1.945 +		0x200c0000, 0x008162ff, 0x290c0000, 0x00a162ff,
   1.946 +		0x310c0000, 0x00c262ff, 0x390c0000, 0x00e262ff,
   1.947 +		0x410c0000, 0x00006aff, 0x4a0c0000, 0x00206aff,
   1.948 +		0x520c0000, 0x00406aff, 0x5a0c0000, 0x00616aff,
   1.949 +		0x620c0000, 0x00816aff, 0x6a0c0000, 0x00a16aff,
   1.950 +		0x730c0000, 0x00c26aff, 0x7b0c0000, 0x00e26aff,
   1.951 +		0x830c0000, 0x000073ff, 0x8b0c0000, 0x002073ff,
   1.952 +		0x940c0000, 0x004073ff, 0x9c0c0000, 0x006173ff,
   1.953 +		0xa40c0000, 0x008173ff, 0xac0c0000, 0x00a173ff,
   1.954 +		0xb40c0000, 0x00c273ff, 0xbd0c0000, 0x00e273ff,
   1.955 +		0xc50c0000, 0x00007bff, 0xcd0c0000, 0x00207bff,
   1.956 +		0xd50c0000, 0x00407bff, 0xde0c0000, 0x00617bff,
   1.957 +		0xe60c0000, 0x00817bff, 0xee0c0000, 0x00a17bff,
   1.958 +		0xf60c0000, 0x00c27bff, 0xff0c0000, 0x00e27bff,
   1.959 +		0x00100000, 0x000083ff, 0x08100000, 0x002083ff,
   1.960 +		0x10100000, 0x004083ff, 0x18100000, 0x006183ff,
   1.961 +		0x20100000, 0x008183ff, 0x29100000, 0x00a183ff,
   1.962 +		0x31100000, 0x00c283ff, 0x39100000, 0x00e283ff,
   1.963 +		0x41100000, 0x00008bff, 0x4a100000, 0x00208bff,
   1.964 +		0x52100000, 0x00408bff, 0x5a100000, 0x00618bff,
   1.965 +		0x62100000, 0x00818bff, 0x6a100000, 0x00a18bff,
   1.966 +		0x73100000, 0x00c28bff, 0x7b100000, 0x00e28bff,
   1.967 +		0x83100000, 0x000094ff, 0x8b100000, 0x002094ff,
   1.968 +		0x94100000, 0x004094ff, 0x9c100000, 0x006194ff,
   1.969 +		0xa4100000, 0x008194ff, 0xac100000, 0x00a194ff,
   1.970 +		0xb4100000, 0x00c294ff, 0xbd100000, 0x00e294ff,
   1.971 +		0xc5100000, 0x00009cff, 0xcd100000, 0x00209cff,
   1.972 +		0xd5100000, 0x00409cff, 0xde100000, 0x00619cff,
   1.973 +		0xe6100000, 0x00819cff, 0xee100000, 0x00a19cff,
   1.974 +		0xf6100000, 0x00c29cff, 0xff100000, 0x00e29cff,
   1.975 +		0x00140000, 0x0000a4ff, 0x08140000, 0x0020a4ff,
   1.976 +		0x10140000, 0x0040a4ff, 0x18140000, 0x0061a4ff,
   1.977 +		0x20140000, 0x0081a4ff, 0x29140000, 0x00a1a4ff,
   1.978 +		0x31140000, 0x00c2a4ff, 0x39140000, 0x00e2a4ff,
   1.979 +		0x41140000, 0x0000acff, 0x4a140000, 0x0020acff,
   1.980 +		0x52140000, 0x0040acff, 0x5a140000, 0x0061acff,
   1.981 +		0x62140000, 0x0081acff, 0x6a140000, 0x00a1acff,
   1.982 +		0x73140000, 0x00c2acff, 0x7b140000, 0x00e2acff,
   1.983 +		0x83140000, 0x0000b4ff, 0x8b140000, 0x0020b4ff,
   1.984 +		0x94140000, 0x0040b4ff, 0x9c140000, 0x0061b4ff,
   1.985 +		0xa4140000, 0x0081b4ff, 0xac140000, 0x00a1b4ff,
   1.986 +		0xb4140000, 0x00c2b4ff, 0xbd140000, 0x00e2b4ff,
   1.987 +		0xc5140000, 0x0000bdff, 0xcd140000, 0x0020bdff,
   1.988 +		0xd5140000, 0x0040bdff, 0xde140000, 0x0061bdff,
   1.989 +		0xe6140000, 0x0081bdff, 0xee140000, 0x00a1bdff,
   1.990 +		0xf6140000, 0x00c2bdff, 0xff140000, 0x00e2bdff,
   1.991 +		0x00180000, 0x0000c5ff, 0x08180000, 0x0020c5ff,
   1.992 +		0x10180000, 0x0040c5ff, 0x18180000, 0x0061c5ff,
   1.993 +		0x20180000, 0x0081c5ff, 0x29180000, 0x00a1c5ff,
   1.994 +		0x31180000, 0x00c2c5ff, 0x39180000, 0x00e2c5ff,
   1.995 +		0x41180000, 0x0000cdff, 0x4a180000, 0x0020cdff,
   1.996 +		0x52180000, 0x0040cdff, 0x5a180000, 0x0061cdff,
   1.997 +		0x62180000, 0x0081cdff, 0x6a180000, 0x00a1cdff,
   1.998 +		0x73180000, 0x00c2cdff, 0x7b180000, 0x00e2cdff,
   1.999 +		0x83180000, 0x0000d5ff, 0x8b180000, 0x0020d5ff,
  1.1000 +		0x94180000, 0x0040d5ff, 0x9c180000, 0x0061d5ff,
  1.1001 +		0xa4180000, 0x0081d5ff, 0xac180000, 0x00a1d5ff,
  1.1002 +		0xb4180000, 0x00c2d5ff, 0xbd180000, 0x00e2d5ff,
  1.1003 +		0xc5180000, 0x0000deff, 0xcd180000, 0x0020deff,
  1.1004 +		0xd5180000, 0x0040deff, 0xde180000, 0x0061deff,
  1.1005 +		0xe6180000, 0x0081deff, 0xee180000, 0x00a1deff,
  1.1006 +		0xf6180000, 0x00c2deff, 0xff180000, 0x00e2deff,
  1.1007 +		0x001c0000, 0x0000e6ff, 0x081c0000, 0x0020e6ff,
  1.1008 +		0x101c0000, 0x0040e6ff, 0x181c0000, 0x0061e6ff,
  1.1009 +		0x201c0000, 0x0081e6ff, 0x291c0000, 0x00a1e6ff,
  1.1010 +		0x311c0000, 0x00c2e6ff, 0x391c0000, 0x00e2e6ff,
  1.1011 +		0x411c0000, 0x0000eeff, 0x4a1c0000, 0x0020eeff,
  1.1012 +		0x521c0000, 0x0040eeff, 0x5a1c0000, 0x0061eeff,
  1.1013 +		0x621c0000, 0x0081eeff, 0x6a1c0000, 0x00a1eeff,
  1.1014 +		0x731c0000, 0x00c2eeff, 0x7b1c0000, 0x00e2eeff,
  1.1015 +		0x831c0000, 0x0000f6ff, 0x8b1c0000, 0x0020f6ff,
  1.1016 +		0x941c0000, 0x0040f6ff, 0x9c1c0000, 0x0061f6ff,
  1.1017 +		0xa41c0000, 0x0081f6ff, 0xac1c0000, 0x00a1f6ff,
  1.1018 +		0xb41c0000, 0x00c2f6ff, 0xbd1c0000, 0x00e2f6ff,
  1.1019 +		0xc51c0000, 0x0000ffff, 0xcd1c0000, 0x0020ffff,
  1.1020 +		0xd51c0000, 0x0040ffff, 0xde1c0000, 0x0061ffff,
  1.1021 +		0xe61c0000, 0x0081ffff, 0xee1c0000, 0x00a1ffff,
  1.1022 +		0xf61c0000, 0x00c2ffff, 0xff1c0000, 0x00e2ffff
  1.1023 +};
  1.1024 +static void Blit_RGB565_BGRA8888(SDL_BlitInfo *info)
  1.1025 +{
  1.1026 +    Blit_RGB565_32(info, RGB565_BGRA8888_LUT);
  1.1027 +}
  1.1028 +
  1.1029 +/* Special optimized blit for RGB 8-8-8 --> RGB 3-3-2 */
  1.1030 +#ifndef RGB888_RGB332
  1.1031 +#define RGB888_RGB332(dst, src) { \
  1.1032 +	dst = (((src)&0x00E00000)>>16)| \
  1.1033 +	      (((src)&0x0000E000)>>11)| \
  1.1034 +	      (((src)&0x000000C0)>>6); \
  1.1035 +}
  1.1036 +#endif
  1.1037 +static void Blit_RGB888_index8_map(SDL_BlitInfo *info)
  1.1038 +{
  1.1039 +#ifndef USE_DUFFS_LOOP
  1.1040 +	int c;
  1.1041 +#endif
  1.1042 +	int pixel;
  1.1043 +	int width, height;
  1.1044 +	Uint32 *src;
  1.1045 +	Uint8 *map, *dst;
  1.1046 +	int srcskip, dstskip;
  1.1047 +
  1.1048 +	/* Set up some basic variables */
  1.1049 +	width = info->d_width;
  1.1050 +	height = info->d_height;
  1.1051 +	src = (Uint32 *)info->s_pixels;
  1.1052 +	srcskip = info->s_skip/4;
  1.1053 +	dst = info->d_pixels;
  1.1054 +	dstskip = info->d_skip;
  1.1055 +	map = info->table;
  1.1056 +
  1.1057 +#ifdef USE_DUFFS_LOOP
  1.1058 +	while ( height-- ) {
  1.1059 +		DUFFS_LOOP(
  1.1060 +			RGB888_RGB332(pixel, *src);
  1.1061 +			*dst++ = map[pixel];
  1.1062 +			++src;
  1.1063 +		, width);
  1.1064 +		src += srcskip;
  1.1065 +		dst += dstskip;
  1.1066 +	}
  1.1067 +#else
  1.1068 +	while ( height-- ) {
  1.1069 +		for ( c=width/4; c; --c ) {
  1.1070 +			/* Pack RGB into 8bit pixel */
  1.1071 +			RGB888_RGB332(pixel, *src);
  1.1072 +			*dst++ = map[pixel];
  1.1073 +			++src;
  1.1074 +			RGB888_RGB332(pixel, *src);
  1.1075 +			*dst++ = map[pixel];
  1.1076 +			++src;
  1.1077 +			RGB888_RGB332(pixel, *src);
  1.1078 +			*dst++ = map[pixel];
  1.1079 +			++src;
  1.1080 +			RGB888_RGB332(pixel, *src);
  1.1081 +			*dst++ = map[pixel];
  1.1082 +			++src;
  1.1083 +		}
  1.1084 +		switch ( width % 4 ) {
  1.1085 +			case 3:
  1.1086 +				RGB888_RGB332(pixel, *src);
  1.1087 +				*dst++ = map[pixel];
  1.1088 +				++src;
  1.1089 +			case 2:
  1.1090 +				RGB888_RGB332(pixel, *src);
  1.1091 +				*dst++ = map[pixel];
  1.1092 +				++src;
  1.1093 +			case 1:
  1.1094 +				RGB888_RGB332(pixel, *src);
  1.1095 +				*dst++ = map[pixel];
  1.1096 +				++src;
  1.1097 +		}
  1.1098 +		src += srcskip;
  1.1099 +		dst += dstskip;
  1.1100 +	}
  1.1101 +#endif /* USE_DUFFS_LOOP */
  1.1102 +}
  1.1103 +static void BlitNto1(SDL_BlitInfo *info)
  1.1104 +{
  1.1105 +#ifndef USE_DUFFS_LOOP
  1.1106 +	int c;
  1.1107 +#endif
  1.1108 +	int width, height;
  1.1109 +	Uint8 *src, *map, *dst;
  1.1110 +	int srcskip, dstskip;
  1.1111 +	int srcbpp;
  1.1112 +	Uint32 pixel;
  1.1113 +	int  sR, sG, sB;
  1.1114 +	SDL_PixelFormat *srcfmt;
  1.1115 +
  1.1116 +	/* Set up some basic variables */
  1.1117 +	width = info->d_width;
  1.1118 +	height = info->d_height;
  1.1119 +	src = info->s_pixels;
  1.1120 +	srcskip = info->s_skip;
  1.1121 +	dst = info->d_pixels;
  1.1122 +	dstskip = info->d_skip;
  1.1123 +	map = info->table;
  1.1124 +	srcfmt = info->src;
  1.1125 +	srcbpp = srcfmt->BytesPerPixel;
  1.1126 +
  1.1127 +	if ( map == NULL ) {
  1.1128 +		while ( height-- ) {
  1.1129 +#ifdef USE_DUFFS_LOOP
  1.1130 +			DUFFS_LOOP(
  1.1131 +				DISEMBLE_RGB(src, srcbpp, srcfmt, pixel,
  1.1132 +								sR, sG, sB);
  1.1133 +				if ( 1 ) {
  1.1134 +				  	/* Pack RGB into 8bit pixel */
  1.1135 +				  	*dst = ((sR>>5)<<(3+2))|
  1.1136 +					        ((sG>>5)<<(2)) |
  1.1137 +					        ((sB>>6)<<(0)) ;
  1.1138 +				}
  1.1139 +				dst++;
  1.1140 +				src += srcbpp;
  1.1141 +			, width);
  1.1142 +#else
  1.1143 +			for ( c=width; c; --c ) {
  1.1144 +				DISEMBLE_RGB(src, srcbpp, srcfmt, pixel,
  1.1145 +								sR, sG, sB);
  1.1146 +				if ( 1 ) {
  1.1147 +				  	/* Pack RGB into 8bit pixel */
  1.1148 +				  	*dst = ((sR>>5)<<(3+2))|
  1.1149 +					        ((sG>>5)<<(2)) |
  1.1150 +					        ((sB>>6)<<(0)) ;
  1.1151 +				}
  1.1152 +				dst++;
  1.1153 +				src += srcbpp;
  1.1154 +			}
  1.1155 +#endif
  1.1156 +			src += srcskip;
  1.1157 +			dst += dstskip;
  1.1158 +		}
  1.1159 +	} else {
  1.1160 +		while ( height-- ) {
  1.1161 +#ifdef USE_DUFFS_LOOP
  1.1162 +			DUFFS_LOOP(
  1.1163 +				DISEMBLE_RGB(src, srcbpp, srcfmt, pixel,
  1.1164 +								sR, sG, sB);
  1.1165 +				if ( 1 ) {
  1.1166 +				  	/* Pack RGB into 8bit pixel */
  1.1167 +				  	*dst = map[((sR>>5)<<(3+2))|
  1.1168 +						   ((sG>>5)<<(2))  |
  1.1169 +						   ((sB>>6)<<(0))  ];
  1.1170 +				}
  1.1171 +				dst++;
  1.1172 +				src += srcbpp;
  1.1173 +			, width);
  1.1174 +#else
  1.1175 +			for ( c=width; c; --c ) {
  1.1176 +				DISEMBLE_RGB(src, srcbpp, srcfmt, pixel,
  1.1177 +								sR, sG, sB);
  1.1178 +				if ( 1 ) {
  1.1179 +				  	/* Pack RGB into 8bit pixel */
  1.1180 +				  	*dst = map[((sR>>5)<<(3+2))|
  1.1181 +						   ((sG>>5)<<(2))  |
  1.1182 +						   ((sB>>6)<<(0))  ];
  1.1183 +				}
  1.1184 +				dst++;
  1.1185 +				src += srcbpp;
  1.1186 +			}
  1.1187 +#endif /* USE_DUFFS_LOOP */
  1.1188 +			src += srcskip;
  1.1189 +			dst += dstskip;
  1.1190 +		}
  1.1191 +	}
  1.1192 +}
  1.1193 +static void BlitNtoN(SDL_BlitInfo *info)
  1.1194 +{
  1.1195 +	int width = info->d_width;
  1.1196 +	int height = info->d_height;
  1.1197 +	Uint8 *src = info->s_pixels;
  1.1198 +	int srcskip = info->s_skip;
  1.1199 +	Uint8 *dst = info->d_pixels;
  1.1200 +	int dstskip = info->d_skip;
  1.1201 +	SDL_PixelFormat *srcfmt = info->src;
  1.1202 +	int srcbpp = srcfmt->BytesPerPixel;
  1.1203 +	SDL_PixelFormat *dstfmt = info->dst;
  1.1204 +	int dstbpp = dstfmt->BytesPerPixel;
  1.1205 +	unsigned alpha = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
  1.1206 +
  1.1207 +	while ( height-- ) {
  1.1208 +		DUFFS_LOOP(
  1.1209 +		{
  1.1210 +		        Uint32 pixel;
  1.1211 +			unsigned sR;
  1.1212 +			unsigned sG;
  1.1213 +			unsigned sB;
  1.1214 +			DISEMBLE_RGB(src, srcbpp, srcfmt, pixel, sR, sG, sB);
  1.1215 +			ASSEMBLE_RGBA(dst, dstbpp, dstfmt, sR, sG, sB, alpha);
  1.1216 +			dst += dstbpp;
  1.1217 +			src += srcbpp;
  1.1218 +		},
  1.1219 +		width);
  1.1220 +		src += srcskip;
  1.1221 +		dst += dstskip;
  1.1222 +	}
  1.1223 +}
  1.1224 +
  1.1225 +static void BlitNtoNCopyAlpha(SDL_BlitInfo *info)
  1.1226 +{
  1.1227 +	int width = info->d_width;
  1.1228 +	int height = info->d_height;
  1.1229 +	Uint8 *src = info->s_pixels;
  1.1230 +	int srcskip = info->s_skip;
  1.1231 +	Uint8 *dst = info->d_pixels;
  1.1232 +	int dstskip = info->d_skip;
  1.1233 +	SDL_PixelFormat *srcfmt = info->src;
  1.1234 +	int srcbpp = srcfmt->BytesPerPixel;
  1.1235 +	SDL_PixelFormat *dstfmt = info->dst;
  1.1236 +	int dstbpp = dstfmt->BytesPerPixel;
  1.1237 +	int c;
  1.1238 +
  1.1239 +	/* FIXME: should map alpha to [0..255] correctly! */
  1.1240 +	while ( height-- ) {
  1.1241 +		for ( c=width; c; --c ) {
  1.1242 +		        Uint32 pixel;
  1.1243 +			unsigned sR, sG, sB, sA;
  1.1244 +			DISEMBLE_RGBA(src, srcbpp, srcfmt, pixel,
  1.1245 +				      sR, sG, sB, sA);
  1.1246 +			ASSEMBLE_RGBA(dst, dstbpp, dstfmt,
  1.1247 +				      sR, sG, sB, sA);
  1.1248 +			dst += dstbpp;
  1.1249 +			src += srcbpp;
  1.1250 +		}
  1.1251 +		src += srcskip;
  1.1252 +		dst += dstskip;
  1.1253 +	}
  1.1254 +}
  1.1255 +
  1.1256 +static void BlitNto1Key(SDL_BlitInfo *info)
  1.1257 +{
  1.1258 +	int width = info->d_width;
  1.1259 +	int height = info->d_height;
  1.1260 +	Uint8 *src = info->s_pixels;
  1.1261 +	int srcskip = info->s_skip;
  1.1262 +	Uint8 *dst = info->d_pixels;
  1.1263 +	int dstskip = info->d_skip;
  1.1264 +	SDL_PixelFormat *srcfmt = info->src;
  1.1265 +	Uint8 *palmap = info->table;
  1.1266 +	Uint32 ckey = srcfmt->colorkey;
  1.1267 +	Uint32 rgbmask = ~srcfmt->Amask;
  1.1268 +	int srcbpp;
  1.1269 +	Uint32 pixel;
  1.1270 +	Uint8  sR, sG, sB;
  1.1271 +
  1.1272 +	/* Set up some basic variables */
  1.1273 +	srcbpp = srcfmt->BytesPerPixel;
  1.1274 +	ckey &= rgbmask;
  1.1275 +
  1.1276 +	if ( palmap == NULL ) {
  1.1277 +		while ( height-- ) {
  1.1278 +			DUFFS_LOOP(
  1.1279 +			{
  1.1280 +				DISEMBLE_RGB(src, srcbpp, srcfmt, pixel,
  1.1281 +								sR, sG, sB);
  1.1282 +				if ( (pixel & rgbmask) != ckey ) {
  1.1283 +				  	/* Pack RGB into 8bit pixel */
  1.1284 +				  	*dst = ((sR>>5)<<(3+2))|
  1.1285 +						((sG>>5)<<(2)) |
  1.1286 +						((sB>>6)<<(0)) ;
  1.1287 +				}
  1.1288 +				dst++;
  1.1289 +				src += srcbpp;
  1.1290 +			},
  1.1291 +			width);
  1.1292 +			src += srcskip;
  1.1293 +			dst += dstskip;
  1.1294 +		}
  1.1295 +	} else {
  1.1296 +		while ( height-- ) {
  1.1297 +			DUFFS_LOOP(
  1.1298 +			{
  1.1299 +				DISEMBLE_RGB(src, srcbpp, srcfmt, pixel,
  1.1300 +								sR, sG, sB);
  1.1301 +				if ( (pixel & rgbmask) != ckey ) {
  1.1302 +				  	/* Pack RGB into 8bit pixel */
  1.1303 +				  	*dst = palmap[((sR>>5)<<(3+2))|
  1.1304 +							((sG>>5)<<(2))  |
  1.1305 +							((sB>>6)<<(0))  ];
  1.1306 +				}
  1.1307 +				dst++;
  1.1308 +				src += srcbpp;
  1.1309 +			},
  1.1310 +			width);
  1.1311 +			src += srcskip;
  1.1312 +			dst += dstskip;
  1.1313 +		}
  1.1314 +	}
  1.1315 +}
  1.1316 +
  1.1317 +static void Blit2to2Key(SDL_BlitInfo *info)
  1.1318 +{
  1.1319 +	int width = info->d_width;
  1.1320 +	int height = info->d_height;
  1.1321 +	Uint16 *srcp = (Uint16 *)info->s_pixels;
  1.1322 +	int srcskip = info->s_skip;
  1.1323 +	Uint16 *dstp = (Uint16 *)info->d_pixels;
  1.1324 +	int dstskip = info->d_skip;
  1.1325 +	Uint32 ckey = info->src->colorkey;
  1.1326 +	Uint32 rgbmask = ~info->src->Amask;
  1.1327 +
  1.1328 +	/* Set up some basic variables */
  1.1329 +        srcskip /= 2;
  1.1330 +        dstskip /= 2;
  1.1331 +	ckey &= rgbmask;
  1.1332 +
  1.1333 +	while ( height-- ) {
  1.1334 +		DUFFS_LOOP(
  1.1335 +		{
  1.1336 +			if ( (*srcp & rgbmask) != ckey ) {
  1.1337 +				*dstp = *srcp;
  1.1338 +			}
  1.1339 +			dstp++;
  1.1340 +			srcp++;
  1.1341 +		},
  1.1342 +		width);
  1.1343 +		srcp += srcskip;
  1.1344 +		dstp += dstskip;
  1.1345 +	}
  1.1346 +}
  1.1347 +
  1.1348 +static void BlitNtoNKey(SDL_BlitInfo *info)
  1.1349 +{
  1.1350 +	int width = info->d_width;
  1.1351 +	int height = info->d_height;
  1.1352 +	Uint8 *src = info->s_pixels;
  1.1353 +	int srcskip = info->s_skip;
  1.1354 +	Uint8 *dst = info->d_pixels;
  1.1355 +	int dstskip = info->d_skip;
  1.1356 +	Uint32 ckey = info->src->colorkey;
  1.1357 +	SDL_PixelFormat *srcfmt = info->src;
  1.1358 +	SDL_PixelFormat *dstfmt = info->dst;
  1.1359 +	int srcbpp = srcfmt->BytesPerPixel;
  1.1360 +	int dstbpp = dstfmt->BytesPerPixel;
  1.1361 +	unsigned alpha = dstfmt->Amask ? SDL_ALPHA_OPAQUE : 0;
  1.1362 +
  1.1363 +	while ( height-- ) {
  1.1364 +		DUFFS_LOOP(
  1.1365 +		{
  1.1366 +		        Uint32 pixel;
  1.1367 +			unsigned sR;
  1.1368 +			unsigned sG;
  1.1369 +			unsigned sB;
  1.1370 +			RETRIEVE_RGB_PIXEL(src, srcbpp, pixel);
  1.1371 +			if ( pixel != ckey ) {
  1.1372 +			        RGB_FROM_PIXEL(pixel, srcfmt, sR, sG, sB);
  1.1373 +				ASSEMBLE_RGBA(dst, dstbpp, dstfmt,
  1.1374 +					      sR, sG, sB, alpha);
  1.1375 +			}
  1.1376 +			dst += dstbpp;
  1.1377 +			src += srcbpp;
  1.1378 +		},
  1.1379 +		width);
  1.1380 +		src += srcskip;
  1.1381 +		dst += dstskip;
  1.1382 +	}
  1.1383 +}
  1.1384 +
  1.1385 +static void BlitNtoNKeyCopyAlpha(SDL_BlitInfo *info)
  1.1386 +{
  1.1387 +	int width = info->d_width;
  1.1388 +	int height = info->d_height;
  1.1389 +	Uint8 *src = info->s_pixels;
  1.1390 +	int srcskip = info->s_skip;
  1.1391 +	Uint8 *dst = info->d_pixels;
  1.1392 +	int dstskip = info->d_skip;
  1.1393 +	Uint32 ckey = info->src->colorkey;
  1.1394 +	SDL_PixelFormat *srcfmt = info->src;
  1.1395 +	SDL_PixelFormat *dstfmt = info->dst;
  1.1396 +	Uint32 rgbmask = ~srcfmt->Amask;
  1.1397 +
  1.1398 +	Uint8 srcbpp;
  1.1399 +	Uint8 dstbpp;
  1.1400 +	Uint32 pixel;
  1.1401 +	Uint8  sR, sG, sB, sA;
  1.1402 +
  1.1403 +	/* Set up some basic variables */
  1.1404 +	srcbpp = srcfmt->BytesPerPixel;
  1.1405 +	dstbpp = dstfmt->BytesPerPixel;
  1.1406 +	ckey &= rgbmask;
  1.1407 +
  1.1408 +	/* FIXME: should map alpha to [0..255] correctly! */
  1.1409 +	while ( height-- ) {
  1.1410 +		DUFFS_LOOP(
  1.1411 +		{
  1.1412 +			DISEMBLE_RGBA(src, srcbpp, srcfmt, pixel,
  1.1413 +				      sR, sG, sB, sA);
  1.1414 +			if ( (pixel & rgbmask) != ckey ) {
  1.1415 +				  ASSEMBLE_RGBA(dst, dstbpp, dstfmt,
  1.1416 +						sR, sG, sB, sA);
  1.1417 +			}
  1.1418 +			dst += dstbpp;
  1.1419 +			src += srcbpp;
  1.1420 +		},
  1.1421 +		width);
  1.1422 +		src += srcskip;
  1.1423 +		dst += dstskip;
  1.1424 +	}
  1.1425 +}
  1.1426 +
  1.1427 +/* Normal N to N optimized blitters */
  1.1428 +struct blit_table {
  1.1429 +	Uint32 srcR, srcG, srcB;
  1.1430 +	int dstbpp;
  1.1431 +	Uint32 dstR, dstG, dstB;
  1.1432 +	Uint32 cpu_flags;
  1.1433 +	void *aux_data;
  1.1434 +	SDL_loblit blitfunc;
  1.1435 +        enum { NO_ALPHA, SET_ALPHA, COPY_ALPHA } alpha;
  1.1436 +};
  1.1437 +static struct blit_table normal_blit_1[] = {
  1.1438 +	/* Default for 8-bit RGB source, an invalid combination */
  1.1439 +	{ 0,0,0, 0, 0,0,0, 0, NULL, NULL },
  1.1440 +};
  1.1441 +static struct blit_table normal_blit_2[] = {
  1.1442 +#ifdef USE_ASMBLIT
  1.1443 +    { 0x0000F800,0x000007E0,0x0000001F, 2, 0x0000001F,0x000007E0,0x0000F800,
  1.1444 +      0, ConvertX86p16_16BGR565, ConvertX86, NO_ALPHA },
  1.1445 +    { 0x0000F800,0x000007E0,0x0000001F, 2, 0x00007C00,0x000003E0,0x0000001F,
  1.1446 +      0, ConvertX86p16_16RGB555, ConvertX86, NO_ALPHA },
  1.1447 +    { 0x0000F800,0x000007E0,0x0000001F, 2, 0x0000001F,0x000003E0,0x00007C00,
  1.1448 +      0, ConvertX86p16_16BGR555, ConvertX86, NO_ALPHA },
  1.1449 +#endif
  1.1450 +    { 0x0000F800,0x000007E0,0x0000001F, 4, 0x00FF0000,0x0000FF00,0x000000FF,
  1.1451 +      0, NULL, Blit_RGB565_ARGB8888, SET_ALPHA },
  1.1452 +    { 0x0000F800,0x000007E0,0x0000001F, 4, 0x000000FF,0x0000FF00,0x00FF0000,
  1.1453 +      0, NULL, Blit_RGB565_ABGR8888, SET_ALPHA },
  1.1454 +    { 0x0000F800,0x000007E0,0x0000001F, 4, 0xFF000000,0x00FF0000,0x0000FF00,
  1.1455 +      0, NULL, Blit_RGB565_RGBA8888, SET_ALPHA },
  1.1456 +    { 0x0000F800,0x000007E0,0x0000001F, 4, 0x0000FF00,0x00FF0000,0xFF000000,
  1.1457 +      0, NULL, Blit_RGB565_BGRA8888, SET_ALPHA },
  1.1458 +
  1.1459 +    /* Default for 16-bit RGB source, used if no other blitter matches */
  1.1460 +    { 0,0,0, 0, 0,0,0, 0, NULL, BlitNtoN, 0 }
  1.1461 +};
  1.1462 +static struct blit_table normal_blit_3[] = {
  1.1463 +	/* Default for 24-bit RGB source, never optimized */
  1.1464 +    { 0,0,0, 0, 0,0,0, 0, NULL, BlitNtoN, 0 }
  1.1465 +};
  1.1466 +static struct blit_table normal_blit_4[] = {
  1.1467 +#ifdef USE_ASMBLIT
  1.1468 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000F800,0x000007E0,0x0000001F,
  1.1469 +      MMX_CPU, ConvertMMXpII32_16RGB565, ConvertMMX, NO_ALPHA },
  1.1470 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000F800,0x000007E0,0x0000001F,
  1.1471 +      0, ConvertX86p32_16RGB565, ConvertX86, NO_ALPHA },
  1.1472 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000007E0,0x0000F800,
  1.1473 +      MMX_CPU, ConvertMMXpII32_16BGR565, ConvertMMX, NO_ALPHA },
  1.1474 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000007E0,0x0000F800,
  1.1475 +      0, ConvertX86p32_16BGR565, ConvertX86, NO_ALPHA },
  1.1476 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x00007C00,0x000003E0,0x0000001F,
  1.1477 +      MMX_CPU, ConvertMMXpII32_16RGB555, ConvertMMX, NO_ALPHA },
  1.1478 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x00007C00,0x000003E0,0x0000001F,
  1.1479 +      0, ConvertX86p32_16RGB555, ConvertX86, NO_ALPHA },
  1.1480 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000003E0,0x00007C00,
  1.1481 +      MMX_CPU, ConvertMMXpII32_16BGR555, ConvertMMX, NO_ALPHA },
  1.1482 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000001F,0x000003E0,0x00007C00,
  1.1483 +      0, ConvertX86p32_16BGR555, ConvertX86, NO_ALPHA },
  1.1484 +    { 0x00FF0000,0x0000FF00,0x000000FF, 3, 0x00FF0000,0x0000FF00,0x000000FF,
  1.1485 +      0, ConvertX86p32_24RGB888, ConvertX86, NO_ALPHA },
  1.1486 +    { 0x00FF0000,0x0000FF00,0x000000FF, 3, 0x000000FF,0x0000FF00,0x00FF0000,
  1.1487 +      0, ConvertX86p32_24BGR888, ConvertX86, NO_ALPHA },
  1.1488 +    { 0x00FF0000,0x0000FF00,0x000000FF, 4, 0x000000FF,0x0000FF00,0x00FF0000,
  1.1489 +      0, ConvertX86p32_32BGR888, ConvertX86, NO_ALPHA },
  1.1490 +    { 0x00FF0000,0x0000FF00,0x000000FF, 4, 0xFF000000,0x00FF0000,0x0000FF00,
  1.1491 +      0, ConvertX86p32_32RGBA888, ConvertX86, NO_ALPHA },
  1.1492 +    { 0x00FF0000,0x0000FF00,0x000000FF, 4, 0x0000FF00,0x00FF0000,0xFF000000,
  1.1493 +      0, ConvertX86p32_32BGRA888, ConvertX86, NO_ALPHA },
  1.1494 +#else
  1.1495 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x0000F800,0x000007E0,0x0000001F,
  1.1496 +      0, NULL, Blit_RGB888_RGB565, NO_ALPHA },
  1.1497 +    { 0x00FF0000,0x0000FF00,0x000000FF, 2, 0x00007C00,0x000003E0,0x0000001F,
  1.1498 +      0, NULL, Blit_RGB888_RGB555, NO_ALPHA },
  1.1499 +#endif
  1.1500 +	/* Default for 32-bit RGB source, used if no other blitter matches */
  1.1501 +	{ 0,0,0, 0, 0,0,0, 0, NULL, BlitNtoN, 0 }
  1.1502 +};
  1.1503 +static struct blit_table *normal_blit[] = {
  1.1504 +	normal_blit_1, normal_blit_2, normal_blit_3, normal_blit_4
  1.1505 +};
  1.1506 +
  1.1507 +SDL_loblit SDL_CalculateBlitN(SDL_Surface *surface, int blit_index)
  1.1508 +{
  1.1509 +	struct private_swaccel *sdata;
  1.1510 +	SDL_PixelFormat *srcfmt;
  1.1511 +	SDL_PixelFormat *dstfmt;
  1.1512 +	struct blit_table *table;
  1.1513 +	int which;
  1.1514 +	SDL_loblit blitfun;
  1.1515 +
  1.1516 +	/* Set up data for choosing the blit */
  1.1517 +	sdata = surface->map->sw_data;
  1.1518 +	srcfmt = surface->format;
  1.1519 +	dstfmt = surface->map->dst->format;
  1.1520 +
  1.1521 +	if ( blit_index & 2 ) {
  1.1522 +	        /* alpha or alpha+colorkey */
  1.1523 +	        return SDL_CalculateAlphaBlit(surface, blit_index);
  1.1524 +	}
  1.1525 +
  1.1526 +	/* We don't support destinations less than 8-bits */
  1.1527 +	if ( dstfmt->BitsPerPixel < 8 ) {
  1.1528 +		return(NULL);
  1.1529 +	}
  1.1530 +	
  1.1531 +	if(blit_index == 1) {
  1.1532 +	    /* colorkey blit: Here we don't have too many options, mostly
  1.1533 +	       because RLE is the preferred fast way to deal with this.
  1.1534 +	       If a particular case turns out to be useful we'll add it. */
  1.1535 +
  1.1536 +	    if(srcfmt->BytesPerPixel == 2
  1.1537 +	       && surface->map->identity)
  1.1538 +		return Blit2to2Key;
  1.1539 +	    else if(dstfmt->BytesPerPixel == 1)
  1.1540 +		return BlitNto1Key;
  1.1541 +	    else {
  1.1542 +		if(srcfmt->Amask && dstfmt->Amask)
  1.1543 +		    return BlitNtoNKeyCopyAlpha;
  1.1544 +		else
  1.1545 +		    return BlitNtoNKey;
  1.1546 +	    }
  1.1547 +	}
  1.1548 +
  1.1549 +	blitfun = NULL;
  1.1550 +	if ( dstfmt->BitsPerPixel == 8 ) {
  1.1551 +		/* We assume 8-bit destinations are palettized */
  1.1552 +		if ( (srcfmt->BytesPerPixel == 4) &&
  1.1553 +		     (srcfmt->Rmask == 0x00FF0000) &&
  1.1554 +		     (srcfmt->Gmask == 0x0000FF00) &&
  1.1555 +		     (srcfmt->Bmask == 0x000000FF) ) {
  1.1556 +			if ( surface->map->table ) {
  1.1557 +				blitfun = Blit_RGB888_index8_map;
  1.1558 +			} else {
  1.1559 +#ifdef USE_ASMBLIT
  1.1560 +				sdata->aux_data = ConvertX86p32_8RGB332;
  1.1561 +				blitfun = ConvertX86;
  1.1562 +#else
  1.1563 +				blitfun = Blit_RGB888_index8;
  1.1564 +#endif
  1.1565 +			}
  1.1566 +		} else {
  1.1567 +			blitfun = BlitNto1;
  1.1568 +		}
  1.1569 +	} else {
  1.1570 +		/* Now the meat, choose the blitter we want */
  1.1571 +	        int a_need = 0;
  1.1572 +		if(dstfmt->Amask)
  1.1573 +		    a_need = srcfmt->Amask ? COPY_ALPHA : SET_ALPHA;
  1.1574 +		table = normal_blit[srcfmt->BytesPerPixel-1];
  1.1575 +		for ( which=0; table[which].srcR; ++which ) {
  1.1576 +			if ( srcfmt->Rmask == table[which].srcR &&
  1.1577 +			     srcfmt->Gmask == table[which].srcG &&
  1.1578 +			     srcfmt->Bmask == table[which].srcB &&
  1.1579 +			     dstfmt->BytesPerPixel == table[which].dstbpp &&
  1.1580 +			     dstfmt->Rmask == table[which].dstR &&
  1.1581 +			     dstfmt->Gmask == table[which].dstG &&
  1.1582 +			     dstfmt->Bmask == table[which].dstB &&
  1.1583 +			     (a_need & table[which].alpha) == a_need &&
  1.1584 +			     (CPU_Flags()&table[which].cpu_flags) ==
  1.1585 +			     table[which].cpu_flags )
  1.1586 +				break;
  1.1587 +		}
  1.1588 +		sdata->aux_data = table[which].aux_data;
  1.1589 +		blitfun = table[which].blitfunc;
  1.1590 +		if(a_need == COPY_ALPHA && blitfun == BlitNtoN)
  1.1591 +		    blitfun = BlitNtoNCopyAlpha;
  1.1592 +	}
  1.1593 +
  1.1594 +#ifdef DEBUG_ASM
  1.1595 +#ifdef USE_ASMBLIT
  1.1596 +	if ( blitfun == ConvertMMX )
  1.1597 +		fprintf(stderr, "Using mmx blit\n");
  1.1598 +	else
  1.1599 +	if ( blitfun == ConvertX86 )
  1.1600 +		fprintf(stderr, "Using asm blit\n");
  1.1601 +	else
  1.1602 +#endif
  1.1603 +	if ( (blitfun == SDL_BlitNtoN) || (blitfun == SDL_BlitNto1) )
  1.1604 +		fprintf(stderr, "Using C blit\n");
  1.1605 +	else
  1.1606 +		fprintf(stderr, "Using optimized C blit\n");
  1.1607 +#endif /* DEBUG_ASM */
  1.1608 +
  1.1609 +	return(blitfun);
  1.1610 +}