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      1 /*
      2  * Copyright (C)2009-2016 D. R. Commander.  All Rights Reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are met:
      6  *
      7  * - Redistributions of source code must retain the above copyright notice,
      8  *   this list of conditions and the following disclaimer.
      9  * - Redistributions in binary form must reproduce the above copyright notice,
     10  *   this list of conditions and the following disclaimer in the documentation
     11  *   and/or other materials provided with the distribution.
     12  * - Neither the name of the libjpeg-turbo Project nor the names of its
     13  *   contributors may be used to endorse or promote products derived from this
     14  *   software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
     17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
     20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <stdio.h>
     30 #include <stdlib.h>
     31 #include <string.h>
     32 #include <ctype.h>
     33 #include <math.h>
     34 #include <errno.h>
     35 #include <cdjpeg.h>
     36 #include "./bmp.h"
     37 #include "./tjutil.h"
     38 #include "./turbojpeg.h"
     39 
     40 
     41 #define _throw(op, err) {  \
     42 	printf("ERROR in line %d while %s:\n%s\n", __LINE__, op, err);  \
     43   retval=-1;  goto bailout;}
     44 #define _throwunix(m) _throw(m, strerror(errno))
     45 #define _throwtj(m) _throw(m, tjGetErrorStr())
     46 #define _throwbmp(m) _throw(m, bmpgeterr())
     47 
     48 int flags=TJFLAG_NOREALLOC, componly=0, decomponly=0, doyuv=0, quiet=0,
     49 	dotile=0, pf=TJPF_BGR, yuvpad=1, warmup=1, dowrite=1;
     50 char *ext="ppm";
     51 const char *pixFormatStr[TJ_NUMPF]=
     52 {
     53 	"RGB", "BGR", "RGBX", "BGRX", "XBGR", "XRGB", "GRAY", "", "", "", "", "CMYK"
     54 };
     55 const char *subNameLong[TJ_NUMSAMP]=
     56 {
     57 	"4:4:4", "4:2:2", "4:2:0", "GRAY", "4:4:0", "4:1:1"
     58 };
     59 const char *csName[TJ_NUMCS]=
     60 {
     61 	"RGB", "YCbCr", "GRAY", "CMYK", "YCCK"
     62 };
     63 const char *subName[TJ_NUMSAMP]={"444", "422", "420", "GRAY", "440", "411"};
     64 tjscalingfactor *scalingfactors=NULL, sf={1, 1};  int nsf=0;
     65 int xformop=TJXOP_NONE, xformopt=0;
     66 int (*customFilter)(short *, tjregion, tjregion, int, int, tjtransform *);
     67 double benchtime=5.0;
     68 
     69 
     70 char *formatName(int subsamp, int cs, char *buf)
     71 {
     72 	if(cs==TJCS_YCbCr) return (char *)subNameLong[subsamp];
     73 	else if(cs==TJCS_YCCK)
     74 	{
     75 		snprintf(buf, 80, "%s %s", csName[cs], subNameLong[subsamp]);
     76 		return buf;
     77 	}
     78 	else return (char *)csName[cs];
     79 }
     80 
     81 
     82 char *sigfig(double val, int figs, char *buf, int len)
     83 {
     84 	char format[80];
     85 	int digitsafterdecimal=figs-(int)ceil(log10(fabs(val)));
     86 	if(digitsafterdecimal<1) snprintf(format, 80, "%%.0f");
     87 	else snprintf(format, 80, "%%.%df", digitsafterdecimal);
     88 	snprintf(buf, len, format, val);
     89 	return buf;
     90 }
     91 
     92 
     93 /* Custom DCT filter which produces a negative of the image */
     94 int dummyDCTFilter(short *coeffs, tjregion arrayRegion, tjregion planeRegion,
     95 	int componentIndex, int transformIndex, tjtransform *transform)
     96 {
     97 	int i;
     98 	for(i=0; i<arrayRegion.w*arrayRegion.h; i++) coeffs[i]=-coeffs[i];
     99 	return 0;
    100 }
    101 
    102 
    103 /* Decompression test */
    104 int decomp(unsigned char *srcbuf, unsigned char **jpegbuf,
    105 	unsigned long *jpegsize, unsigned char *dstbuf, int w, int h,
    106 	int subsamp, int jpegqual, char *filename, int tilew, int tileh)
    107 {
    108 	char tempstr[1024], sizestr[20]="\0", qualstr[6]="\0", *ptr;
    109 	FILE *file=NULL;  tjhandle handle=NULL;
    110 	int row, col, iter=0, dstbufalloc=0, retval=0;
    111 	double elapsed, elapsedDecode;
    112 	int ps=tjPixelSize[pf];
    113 	int scaledw=TJSCALED(w, sf);
    114 	int scaledh=TJSCALED(h, sf);
    115 	int pitch=scaledw*ps;
    116 	int ntilesw=(w+tilew-1)/tilew, ntilesh=(h+tileh-1)/tileh;
    117 	unsigned char *dstptr, *dstptr2, *yuvbuf=NULL;
    118 
    119 	if(jpegqual>0)
    120 	{
    121 		snprintf(qualstr, 6, "_Q%d", jpegqual);
    122 		qualstr[5]=0;
    123 	}
    124 
    125 	if((handle=tjInitDecompress())==NULL)
    126 		_throwtj("executing tjInitDecompress()");
    127 
    128 	if(dstbuf==NULL)
    129 	{
    130 		if((dstbuf=(unsigned char *)malloc(pitch*scaledh))==NULL)
    131 			_throwunix("allocating destination buffer");
    132 		dstbufalloc=1;
    133 	}
    134 	/* Set the destination buffer to gray so we know whether the decompressor
    135 	   attempted to write to it */
    136 	memset(dstbuf, 127, pitch*scaledh);
    137 
    138 	if(doyuv)
    139 	{
    140 		int width=dotile? tilew:scaledw;
    141 		int height=dotile? tileh:scaledh;
    142 		int yuvsize=tjBufSizeYUV2(width, yuvpad, height, subsamp);
    143 		if((yuvbuf=(unsigned char *)malloc(yuvsize))==NULL)
    144 			_throwunix("allocating YUV buffer");
    145 		memset(yuvbuf, 127, yuvsize);
    146 	}
    147 
    148 	/* Benchmark */
    149 	iter=-warmup;
    150 	elapsed=elapsedDecode=0.;
    151 	while(1)
    152 	{
    153 		int tile=0;
    154 		double start=gettime();
    155 		for(row=0, dstptr=dstbuf; row<ntilesh; row++, dstptr+=pitch*tileh)
    156 		{
    157 			for(col=0, dstptr2=dstptr; col<ntilesw; col++, tile++, dstptr2+=ps*tilew)
    158 			{
    159 				int width=dotile? min(tilew, w-col*tilew):scaledw;
    160 				int height=dotile? min(tileh, h-row*tileh):scaledh;
    161 				if(doyuv)
    162 				{
    163 					double startDecode;
    164 					if(tjDecompressToYUV2(handle, jpegbuf[tile], jpegsize[tile], yuvbuf,
    165 						width, yuvpad, height, flags)==-1)
    166 						_throwtj("executing tjDecompressToYUV2()");
    167 					startDecode=gettime();
    168 					if(tjDecodeYUV(handle, yuvbuf, yuvpad, subsamp, dstptr2, width,
    169 						pitch, height, pf, flags)==-1)
    170 						_throwtj("executing tjDecodeYUV()");
    171 					if(iter>=0) elapsedDecode+=gettime()-startDecode;
    172 				}
    173 				else
    174 					if(tjDecompress2(handle, jpegbuf[tile], jpegsize[tile], dstptr2,
    175 						width, pitch, height, pf, flags)==-1)
    176 						_throwtj("executing tjDecompress2()");
    177 			}
    178 		}
    179 		iter++;
    180 		if(iter>=1)
    181 		{
    182 			elapsed+=gettime()-start;
    183 			if(elapsed>=benchtime) break;
    184 		}
    185 	}
    186 	if(doyuv) elapsed-=elapsedDecode;
    187 
    188 	if(tjDestroy(handle)==-1) _throwtj("executing tjDestroy()");
    189 	handle=NULL;
    190 
    191 	if(quiet)
    192 	{
    193 		printf("%-6s%s",
    194 			sigfig((double)(w*h)/1000000.*(double)iter/elapsed, 4, tempstr, 1024),
    195 			quiet==2? "\n":"  ");
    196 		if(doyuv)
    197 			printf("%s\n",
    198 				sigfig((double)(w*h)/1000000.*(double)iter/elapsedDecode, 4, tempstr,
    199 					1024));
    200 		else if(quiet!=2) printf("\n");
    201 	}
    202 	else
    203 	{
    204 		printf("%s --> Frame rate:         %f fps\n",
    205 			doyuv? "Decomp to YUV":"Decompress   ", (double)iter/elapsed);
    206 		printf("                  Throughput:         %f Megapixels/sec\n",
    207 			(double)(w*h)/1000000.*(double)iter/elapsed);
    208 		if(doyuv)
    209 		{
    210 			printf("YUV Decode    --> Frame rate:         %f fps\n",
    211 				(double)iter/elapsedDecode);
    212 			printf("                  Throughput:         %f Megapixels/sec\n",
    213 				(double)(w*h)/1000000.*(double)iter/elapsedDecode);
    214 		}
    215 	}
    216 
    217 	if (!dowrite) goto bailout;
    218 
    219 	if(sf.num!=1 || sf.denom!=1)
    220 		snprintf(sizestr, 20, "%d_%d", sf.num, sf.denom);
    221 	else if(tilew!=w || tileh!=h)
    222 		snprintf(sizestr, 20, "%dx%d", tilew, tileh);
    223 	else snprintf(sizestr, 20, "full");
    224 	if(decomponly)
    225 		snprintf(tempstr, 1024, "%s_%s.%s", filename, sizestr, ext);
    226 	else
    227 		snprintf(tempstr, 1024, "%s_%s%s_%s.%s", filename, subName[subsamp],
    228 			qualstr, sizestr, ext);
    229 
    230 	if(savebmp(tempstr, dstbuf, scaledw, scaledh, pf,
    231 		(flags&TJFLAG_BOTTOMUP)!=0)==-1)
    232 		_throwbmp("saving bitmap");
    233 	ptr=strrchr(tempstr, '.');
    234 	snprintf(ptr, 1024-(ptr-tempstr), "-err.%s", ext);
    235 	if(srcbuf && sf.num==1 && sf.denom==1)
    236 	{
    237 		if(!quiet) printf("Compression error written to %s.\n", tempstr);
    238 		if(subsamp==TJ_GRAYSCALE)
    239 		{
    240 			int index, index2;
    241 			for(row=0, index=0; row<h; row++, index+=pitch)
    242 			{
    243 				for(col=0, index2=index; col<w; col++, index2+=ps)
    244 				{
    245 					int rindex=index2+tjRedOffset[pf];
    246 					int gindex=index2+tjGreenOffset[pf];
    247 					int bindex=index2+tjBlueOffset[pf];
    248 					int y=(int)((double)srcbuf[rindex]*0.299
    249 						+ (double)srcbuf[gindex]*0.587
    250 						+ (double)srcbuf[bindex]*0.114 + 0.5);
    251 					if(y>255) y=255;
    252 					if(y<0) y=0;
    253 					dstbuf[rindex]=abs(dstbuf[rindex]-y);
    254 					dstbuf[gindex]=abs(dstbuf[gindex]-y);
    255 					dstbuf[bindex]=abs(dstbuf[bindex]-y);
    256 				}
    257 			}
    258 		}
    259 		else
    260 		{
    261 			for(row=0; row<h; row++)
    262 				for(col=0; col<w*ps; col++)
    263 					dstbuf[pitch*row+col]
    264 						=abs(dstbuf[pitch*row+col]-srcbuf[pitch*row+col]);
    265 		}
    266 		if(savebmp(tempstr, dstbuf, w, h, pf,
    267 			(flags&TJFLAG_BOTTOMUP)!=0)==-1)
    268 			_throwbmp("saving bitmap");
    269 	}
    270 
    271 	bailout:
    272 	if(file) fclose(file);
    273 	if(handle) tjDestroy(handle);
    274 	if(dstbuf && dstbufalloc) free(dstbuf);
    275 	if(yuvbuf) free(yuvbuf);
    276 	return retval;
    277 }
    278 
    279 
    280 int fullTest(unsigned char *srcbuf, int w, int h, int subsamp, int jpegqual,
    281 	char *filename)
    282 {
    283 	char tempstr[1024], tempstr2[80];
    284 	FILE *file=NULL;  tjhandle handle=NULL;
    285 	unsigned char **jpegbuf=NULL, *yuvbuf=NULL, *tmpbuf=NULL, *srcptr, *srcptr2;
    286 	double start, elapsed, elapsedEncode;
    287 	int totaljpegsize=0, row, col, i, tilew=w, tileh=h, retval=0;
    288 	int iter, yuvsize=0;
    289 	unsigned long *jpegsize=NULL;
    290 	int ps=tjPixelSize[pf];
    291 	int ntilesw=1, ntilesh=1, pitch=w*ps;
    292 	const char *pfStr=pixFormatStr[pf];
    293 
    294 	if((tmpbuf=(unsigned char *)malloc(pitch*h)) == NULL)
    295 		_throwunix("allocating temporary image buffer");
    296 
    297 	if(!quiet)
    298 		printf(">>>>>  %s (%s) <--> JPEG %s Q%d  <<<<<\n", pfStr,
    299 			(flags&TJFLAG_BOTTOMUP)? "Bottom-up":"Top-down", subNameLong[subsamp],
    300 			jpegqual);
    301 
    302 	for(tilew=dotile? 8:w, tileh=dotile? 8:h; ; tilew*=2, tileh*=2)
    303 	{
    304 		if(tilew>w) tilew=w;
    305 		if(tileh>h) tileh=h;
    306 		ntilesw=(w+tilew-1)/tilew;  ntilesh=(h+tileh-1)/tileh;
    307 
    308 		if((jpegbuf=(unsigned char **)malloc(sizeof(unsigned char *)
    309 			*ntilesw*ntilesh))==NULL)
    310 			_throwunix("allocating JPEG tile array");
    311 		memset(jpegbuf, 0, sizeof(unsigned char *)*ntilesw*ntilesh);
    312 		if((jpegsize=(unsigned long *)malloc(sizeof(unsigned long)
    313 			*ntilesw*ntilesh))==NULL)
    314 			_throwunix("allocating JPEG size array");
    315 		memset(jpegsize, 0, sizeof(unsigned long)*ntilesw*ntilesh);
    316 
    317 		if((flags&TJFLAG_NOREALLOC)!=0)
    318 			for(i=0; i<ntilesw*ntilesh; i++)
    319 			{
    320 				if((jpegbuf[i]=(unsigned char *)tjAlloc(tjBufSize(tilew, tileh,
    321 					subsamp)))==NULL)
    322 					_throwunix("allocating JPEG tiles");
    323 			}
    324 
    325 		/* Compression test */
    326 		if(quiet==1)
    327 			printf("%-4s (%s)  %-5s    %-3d   ", pfStr,
    328 				(flags&TJFLAG_BOTTOMUP)? "BU":"TD", subNameLong[subsamp], jpegqual);
    329 		for(i=0; i<h; i++)
    330 			memcpy(&tmpbuf[pitch*i], &srcbuf[w*ps*i], w*ps);
    331 		if((handle=tjInitCompress())==NULL)
    332 			_throwtj("executing tjInitCompress()");
    333 
    334 		if(doyuv)
    335 		{
    336 			yuvsize=tjBufSizeYUV2(tilew, yuvpad, tileh, subsamp);
    337 			if((yuvbuf=(unsigned char *)malloc(yuvsize))==NULL)
    338 				_throwunix("allocating YUV buffer");
    339 			memset(yuvbuf, 127, yuvsize);
    340 		}
    341 
    342 		/* Benchmark */
    343 		iter=-warmup;
    344 		elapsed=elapsedEncode=0.;
    345 		while(1)
    346 		{
    347 			int tile=0;
    348 			totaljpegsize=0;
    349 			start=gettime();
    350 			for(row=0, srcptr=srcbuf; row<ntilesh; row++, srcptr+=pitch*tileh)
    351 			{
    352 				for(col=0, srcptr2=srcptr; col<ntilesw; col++, tile++,
    353 					srcptr2+=ps*tilew)
    354 				{
    355 					int width=min(tilew, w-col*tilew);
    356 					int height=min(tileh, h-row*tileh);
    357 					if(doyuv)
    358 					{
    359 						double startEncode=gettime();
    360 						if(tjEncodeYUV3(handle, srcptr2, width, pitch, height, pf, yuvbuf,
    361 							yuvpad, subsamp, flags)==-1)
    362 							_throwtj("executing tjEncodeYUV3()");
    363 						if(iter>=0) elapsedEncode+=gettime()-startEncode;
    364 						if(tjCompressFromYUV(handle, yuvbuf, width, yuvpad, height,
    365 							subsamp, &jpegbuf[tile], &jpegsize[tile], jpegqual, flags)==-1)
    366 							_throwtj("executing tjCompressFromYUV()");
    367 					}
    368 					else
    369 					{
    370 						if(tjCompress2(handle, srcptr2, width, pitch, height, pf,
    371 							&jpegbuf[tile], &jpegsize[tile], subsamp, jpegqual, flags)==-1)
    372 							_throwtj("executing tjCompress2()");
    373 					}
    374 					totaljpegsize+=jpegsize[tile];
    375 				}
    376 			}
    377 			iter++;
    378 			if(iter>=1)
    379 			{
    380 				elapsed+=gettime()-start;
    381 				if(elapsed>=benchtime) break;
    382 			}
    383 		}
    384 		if(doyuv) elapsed-=elapsedEncode;
    385 
    386 		if(tjDestroy(handle)==-1) _throwtj("executing tjDestroy()");
    387 		handle=NULL;
    388 
    389 		if(quiet==1) printf("%-5d  %-5d   ", tilew, tileh);
    390 		if(quiet)
    391 		{
    392 			if(doyuv)
    393 				printf("%-6s%s",
    394 					sigfig((double)(w*h)/1000000.*(double)iter/elapsedEncode, 4, tempstr,
    395 						1024), quiet==2? "\n":"  ");
    396 			printf("%-6s%s",
    397 				sigfig((double)(w*h)/1000000.*(double)iter/elapsed, 4,	tempstr, 1024),
    398 				quiet==2? "\n":"  ");
    399 			printf("%-6s%s",
    400 				sigfig((double)(w*h*ps)/(double)totaljpegsize, 4, tempstr2, 80),
    401 				quiet==2? "\n":"  ");
    402 		}
    403 		else
    404 		{
    405 			printf("\n%s size: %d x %d\n", dotile? "Tile":"Image", tilew,
    406 				tileh);
    407 			if(doyuv)
    408 			{
    409 				printf("Encode YUV    --> Frame rate:         %f fps\n",
    410 					(double)iter/elapsedEncode);
    411 				printf("                  Output image size:  %d bytes\n", yuvsize);
    412 				printf("                  Compression ratio:  %f:1\n",
    413 					(double)(w*h*ps)/(double)yuvsize);
    414 				printf("                  Throughput:         %f Megapixels/sec\n",
    415 					(double)(w*h)/1000000.*(double)iter/elapsedEncode);
    416 				printf("                  Output bit stream:  %f Megabits/sec\n",
    417 					(double)yuvsize*8./1000000.*(double)iter/elapsedEncode);
    418 			}
    419 			printf("%s --> Frame rate:         %f fps\n",
    420 				doyuv? "Comp from YUV":"Compress     ", (double)iter/elapsed);
    421 			printf("                  Output image size:  %d bytes\n",
    422 				totaljpegsize);
    423 			printf("                  Compression ratio:  %f:1\n",
    424 				(double)(w*h*ps)/(double)totaljpegsize);
    425 			printf("                  Throughput:         %f Megapixels/sec\n",
    426 				(double)(w*h)/1000000.*(double)iter/elapsed);
    427 			printf("                  Output bit stream:  %f Megabits/sec\n",
    428 				(double)totaljpegsize*8./1000000.*(double)iter/elapsed);
    429 		}
    430 		if(tilew==w && tileh==h && dowrite)
    431 		{
    432 			snprintf(tempstr, 1024, "%s_%s_Q%d.jpg", filename, subName[subsamp],
    433 				jpegqual);
    434 			if((file=fopen(tempstr, "wb"))==NULL)
    435 				_throwunix("opening reference image");
    436 			if(fwrite(jpegbuf[0], jpegsize[0], 1, file)!=1)
    437 				_throwunix("writing reference image");
    438 			fclose(file);  file=NULL;
    439 			if(!quiet) printf("Reference image written to %s\n", tempstr);
    440 		}
    441 
    442 		/* Decompression test */
    443 		if(!componly)
    444 		{
    445 			if(decomp(srcbuf, jpegbuf, jpegsize, tmpbuf, w, h, subsamp, jpegqual,
    446 				filename, tilew, tileh)==-1)
    447 				goto bailout;
    448 		}
    449 
    450 		for(i=0; i<ntilesw*ntilesh; i++)
    451 		{
    452 			if(jpegbuf[i]) tjFree(jpegbuf[i]);
    453 			jpegbuf[i]=NULL;
    454 		}
    455 		free(jpegbuf);  jpegbuf=NULL;
    456 		free(jpegsize);  jpegsize=NULL;
    457 		if(doyuv)
    458 		{
    459 			free(yuvbuf);  yuvbuf=NULL;
    460 		}
    461 
    462 		if(tilew==w && tileh==h) break;
    463 	}
    464 
    465 	bailout:
    466 	if(file) {fclose(file);  file=NULL;}
    467 	if(jpegbuf)
    468 	{
    469 		for(i=0; i<ntilesw*ntilesh; i++)
    470 		{
    471 			if(jpegbuf[i]) tjFree(jpegbuf[i]);
    472 			jpegbuf[i]=NULL;
    473 		}
    474 		free(jpegbuf);  jpegbuf=NULL;
    475 	}
    476 	if(yuvbuf) {free(yuvbuf);  yuvbuf=NULL;}
    477 	if(jpegsize) {free(jpegsize);  jpegsize=NULL;}
    478 	if(tmpbuf) {free(tmpbuf);  tmpbuf=NULL;}
    479 	if(handle) {tjDestroy(handle);  handle=NULL;}
    480 	return retval;
    481 }
    482 
    483 
    484 int decompTest(char *filename)
    485 {
    486 	FILE *file=NULL;  tjhandle handle=NULL;
    487 	unsigned char **jpegbuf=NULL, *srcbuf=NULL;
    488 	unsigned long *jpegsize=NULL, srcsize, totaljpegsize;
    489 	tjtransform *t=NULL;
    490 	int w=0, h=0, subsamp=-1, cs=-1, _w, _h, _tilew, _tileh,
    491 		_ntilesw, _ntilesh, _subsamp;
    492 	char *temp=NULL, tempstr[80], tempstr2[80];
    493 	int row, col, i, iter, tilew, tileh, ntilesw=1, ntilesh=1, retval=0;
    494 	double start, elapsed;
    495 	int ps=tjPixelSize[pf], tile;
    496 
    497 	if((file=fopen(filename, "rb"))==NULL)
    498 		_throwunix("opening file");
    499 	if(fseek(file, 0, SEEK_END)<0 || (srcsize=ftell(file))==(unsigned long)-1)
    500 		_throwunix("determining file size");
    501 	if((srcbuf=(unsigned char *)malloc(srcsize))==NULL)
    502 		_throwunix("allocating memory");
    503 	if(fseek(file, 0, SEEK_SET)<0)
    504 		_throwunix("setting file position");
    505 	if(fread(srcbuf, srcsize, 1, file)<1)
    506 		_throwunix("reading JPEG data");
    507 	fclose(file);  file=NULL;
    508 
    509 	temp=strrchr(filename, '.');
    510 	if(temp!=NULL) *temp='\0';
    511 
    512 	if((handle=tjInitTransform())==NULL)
    513 		_throwtj("executing tjInitTransform()");
    514 	if(tjDecompressHeader3(handle, srcbuf, srcsize, &w, &h, &subsamp, &cs)==-1)
    515 		_throwtj("executing tjDecompressHeader3()");
    516 	if(cs==TJCS_YCCK || cs==TJCS_CMYK)
    517 	{
    518 		pf=TJPF_CMYK;  ps=tjPixelSize[pf];
    519 	}
    520 
    521 	if(quiet==1)
    522 	{
    523 		printf("All performance values in Mpixels/sec\n\n");
    524 		printf("Bitmap     JPEG   JPEG     %s  %s   Xform   Comp    Decomp  ",
    525 			dotile? "Tile ":"Image", dotile? "Tile ":"Image");
    526 		if(doyuv) printf("Decode");
    527 		printf("\n");
    528 		printf("Format     CS     Subsamp  Width  Height  Perf    Ratio   Perf    ");
    529 		if(doyuv) printf("Perf");
    530 		printf("\n\n");
    531 	}
    532 	else if(!quiet)
    533 		printf(">>>>>  JPEG %s --> %s (%s)  <<<<<\n",
    534 			formatName(subsamp, cs, tempstr), pixFormatStr[pf],
    535 			(flags&TJFLAG_BOTTOMUP)? "Bottom-up":"Top-down");
    536 
    537 	for(tilew=dotile? 16:w, tileh=dotile? 16:h; ; tilew*=2, tileh*=2)
    538 	{
    539 		if(tilew>w) tilew=w;
    540 		if(tileh>h) tileh=h;
    541 		ntilesw=(w+tilew-1)/tilew;  ntilesh=(h+tileh-1)/tileh;
    542 
    543 		if((jpegbuf=(unsigned char **)malloc(sizeof(unsigned char *)
    544 			*ntilesw*ntilesh))==NULL)
    545 			_throwunix("allocating JPEG tile array");
    546 		memset(jpegbuf, 0, sizeof(unsigned char *)*ntilesw*ntilesh);
    547 		if((jpegsize=(unsigned long *)malloc(sizeof(unsigned long)
    548 			*ntilesw*ntilesh))==NULL)
    549 			_throwunix("allocating JPEG size array");
    550 		memset(jpegsize, 0, sizeof(unsigned long)*ntilesw*ntilesh);
    551 
    552 		if((flags&TJFLAG_NOREALLOC)!=0 || !dotile)
    553 			for(i=0; i<ntilesw*ntilesh; i++)
    554 			{
    555 				if((jpegbuf[i]=(unsigned char *)tjAlloc(tjBufSize(tilew, tileh,
    556 					subsamp)))==NULL)
    557 					_throwunix("allocating JPEG tiles");
    558 			}
    559 
    560 		_w=w;  _h=h;  _tilew=tilew;  _tileh=tileh;
    561 		if(!quiet)
    562 		{
    563 			printf("\n%s size: %d x %d", dotile? "Tile":"Image", _tilew,
    564 				_tileh);
    565 			if(sf.num!=1 || sf.denom!=1)
    566 				printf(" --> %d x %d", TJSCALED(_w, sf), TJSCALED(_h, sf));
    567 			printf("\n");
    568 		}
    569 		else if(quiet==1)
    570 		{
    571 			printf("%-4s (%s)  %-5s  %-5s    ", pixFormatStr[pf],
    572 				(flags&TJFLAG_BOTTOMUP)? "BU":"TD", csName[cs], subNameLong[subsamp]);
    573 			printf("%-5d  %-5d   ", tilew, tileh);
    574 		}
    575 
    576 		_subsamp=subsamp;
    577 		if(dotile || xformop!=TJXOP_NONE || xformopt!=0 || customFilter)
    578 		{
    579 			if((t=(tjtransform *)malloc(sizeof(tjtransform)*ntilesw*ntilesh))
    580 				==NULL)
    581 				_throwunix("allocating image transform array");
    582 
    583 			if(xformop==TJXOP_TRANSPOSE || xformop==TJXOP_TRANSVERSE
    584 				|| xformop==TJXOP_ROT90 || xformop==TJXOP_ROT270)
    585 			{
    586 				_w=h;  _h=w;  _tilew=tileh;  _tileh=tilew;
    587 			}
    588 
    589 			if(xformopt&TJXOPT_GRAY) _subsamp=TJ_GRAYSCALE;
    590 			if(xformop==TJXOP_HFLIP || xformop==TJXOP_ROT180)
    591 				_w=_w-(_w%tjMCUWidth[_subsamp]);
    592 			if(xformop==TJXOP_VFLIP || xformop==TJXOP_ROT180)
    593 				_h=_h-(_h%tjMCUHeight[_subsamp]);
    594 			if(xformop==TJXOP_TRANSVERSE || xformop==TJXOP_ROT90)
    595 				_w=_w-(_w%tjMCUHeight[_subsamp]);
    596 			if(xformop==TJXOP_TRANSVERSE || xformop==TJXOP_ROT270)
    597 				_h=_h-(_h%tjMCUWidth[_subsamp]);
    598 			_ntilesw=(_w+_tilew-1)/_tilew;
    599 			_ntilesh=(_h+_tileh-1)/_tileh;
    600 
    601 			if(xformop==TJXOP_TRANSPOSE || xformop==TJXOP_TRANSVERSE
    602 				|| xformop==TJXOP_ROT90 || xformop==TJXOP_ROT270)
    603 			{
    604 				if(_subsamp==TJSAMP_422) _subsamp=TJSAMP_440;
    605 				else if(_subsamp==TJSAMP_440) _subsamp=TJSAMP_422;
    606 			}
    607 
    608 			for(row=0, tile=0; row<_ntilesh; row++)
    609 			{
    610 				for(col=0; col<_ntilesw; col++, tile++)
    611 				{
    612 					t[tile].r.w=min(_tilew, _w-col*_tilew);
    613 					t[tile].r.h=min(_tileh, _h-row*_tileh);
    614 					t[tile].r.x=col*_tilew;
    615 					t[tile].r.y=row*_tileh;
    616 					t[tile].op=xformop;
    617 					t[tile].options=xformopt|TJXOPT_TRIM;
    618 					t[tile].customFilter=customFilter;
    619 					if(t[tile].options&TJXOPT_NOOUTPUT && jpegbuf[tile])
    620 					{
    621 						tjFree(jpegbuf[tile]);  jpegbuf[tile]=NULL;
    622 					}
    623 				}
    624 			}
    625 
    626 			iter=-warmup;
    627 			elapsed=0.;
    628 			while(1)
    629 			{
    630 				start=gettime();
    631 				if(tjTransform(handle, srcbuf, srcsize, _ntilesw*_ntilesh, jpegbuf,
    632 					jpegsize, t, flags)==-1)
    633 					_throwtj("executing tjTransform()");
    634 				iter++;
    635 				if(iter>=1)
    636 				{
    637 					elapsed+=gettime()-start;
    638 					if(elapsed>=benchtime) break;
    639 				}
    640 			}
    641 
    642 			free(t);  t=NULL;
    643 
    644 			for(tile=0, totaljpegsize=0; tile<_ntilesw*_ntilesh; tile++)
    645 				totaljpegsize+=jpegsize[tile];
    646 
    647 			if(quiet)
    648 			{
    649 				printf("%-6s%s%-6s%s",
    650 					sigfig((double)(w*h)/1000000./elapsed, 4, tempstr, 80),
    651 					quiet==2? "\n":"  ",
    652 					sigfig((double)(w*h*ps)/(double)totaljpegsize, 4, tempstr2, 80),
    653 					quiet==2? "\n":"  ");
    654 			}
    655 			else if(!quiet)
    656 			{
    657 				printf("Transform     --> Frame rate:         %f fps\n", 1.0/elapsed);
    658 				printf("                  Output image size:  %lu bytes\n", totaljpegsize);
    659 				printf("                  Compression ratio:  %f:1\n",
    660 					(double)(w*h*ps)/(double)totaljpegsize);
    661 				printf("                  Throughput:         %f Megapixels/sec\n",
    662 					(double)(w*h)/1000000./elapsed);
    663 				printf("                  Output bit stream:  %f Megabits/sec\n",
    664 					(double)totaljpegsize*8./1000000./elapsed);
    665 			}
    666 		}
    667 		else
    668 		{
    669 			if(quiet==1) printf("N/A     N/A     ");
    670 			jpegsize[0]=srcsize;
    671 			memcpy(jpegbuf[0], srcbuf, srcsize);
    672 		}
    673 
    674 		if(w==tilew) _tilew=_w;
    675 		if(h==tileh) _tileh=_h;
    676 		if(!(xformopt&TJXOPT_NOOUTPUT))
    677 		{
    678 			if(decomp(NULL, jpegbuf, jpegsize, NULL, _w, _h, _subsamp, 0,
    679 				filename, _tilew, _tileh)==-1)
    680 				goto bailout;
    681 		}
    682 		else if(quiet==1) printf("N/A\n");
    683 
    684 		for(i=0; i<ntilesw*ntilesh; i++)
    685 		{
    686 			tjFree(jpegbuf[i]);  jpegbuf[i]=NULL;
    687 		}
    688 		free(jpegbuf);  jpegbuf=NULL;
    689 		if(jpegsize) {free(jpegsize);  jpegsize=NULL;}
    690 
    691 		if(tilew==w && tileh==h) break;
    692 	}
    693 
    694 	bailout:
    695 	if(file) {fclose(file);  file=NULL;}
    696 	if(jpegbuf)
    697 	{
    698 		for(i=0; i<ntilesw*ntilesh; i++)
    699 		{
    700 			if(jpegbuf[i]) tjFree(jpegbuf[i]);
    701 			jpegbuf[i]=NULL;
    702 		}
    703 		free(jpegbuf);  jpegbuf=NULL;
    704 	}
    705 	if(jpegsize) {free(jpegsize);  jpegsize=NULL;}
    706 	if(srcbuf) {free(srcbuf);  srcbuf=NULL;}
    707 	if(t) {free(t);  t=NULL;}
    708 	if(handle) {tjDestroy(handle);  handle=NULL;}
    709 	return retval;
    710 }
    711 
    712 
    713 void usage(char *progname)
    714 {
    715 	int i;
    716 	printf("USAGE: %s\n", progname);
    717 	printf("       <Inputfile (BMP|PPM)> <Quality> [options]\n\n");
    718 	printf("       %s\n", progname);
    719 	printf("       <Inputfile (JPG)> [options]\n\n");
    720 	printf("Options:\n\n");
    721 	printf("-alloc = Dynamically allocate JPEG image buffers\n");
    722 	printf("-bmp = Generate output images in Windows Bitmap format (default = PPM)\n");
    723 	printf("-bottomup = Test bottom-up compression/decompression\n");
    724 	printf("-tile = Test performance of the codec when the image is encoded as separate\n");
    725 	printf("     tiles of varying sizes.\n");
    726 	printf("-rgb, -bgr, -rgbx, -bgrx, -xbgr, -xrgb =\n");
    727 	printf("     Test the specified color conversion path in the codec (default = BGR)\n");
    728 	printf("-cmyk = Indirectly test YCCK JPEG compression/decompression (the source\n");
    729 	printf("     and destination bitmaps are still RGB.  The conversion is done\n");
    730 	printf("     internally prior to compression or after decompression.)\n");
    731 	printf("-fastupsample = Use the fastest chrominance upsampling algorithm available in\n");
    732 	printf("     the underlying codec\n");
    733 	printf("-fastdct = Use the fastest DCT/IDCT algorithms available in the underlying\n");
    734 	printf("     codec\n");
    735 	printf("-accuratedct = Use the most accurate DCT/IDCT algorithms available in the\n");
    736 	printf("     underlying codec\n");
    737 	printf("-subsamp <s> = When testing JPEG compression, this option specifies the level\n");
    738 	printf("     of chrominance subsampling to use (<s> = 444, 422, 440, 420, 411, or\n");
    739 	printf("     GRAY).  The default is to test Grayscale, 4:2:0, 4:2:2, and 4:4:4 in\n");
    740 	printf("     sequence.\n");
    741 	printf("-quiet = Output results in tabular rather than verbose format\n");
    742 	printf("-yuv = Test YUV encoding/decoding functions\n");
    743 	printf("-yuvpad <p> = If testing YUV encoding/decoding, this specifies the number of\n");
    744 	printf("     bytes to which each row of each plane in the intermediate YUV image is\n");
    745 	printf("     padded (default = 1)\n");
    746 	printf("-scale M/N = Scale down the width/height of the decompressed JPEG image by a\n");
    747 	printf("     factor of M/N (M/N = ");
    748 	for(i=0; i<nsf; i++)
    749 	{
    750 		printf("%d/%d", scalingfactors[i].num, scalingfactors[i].denom);
    751 		if(nsf==2 && i!=nsf-1) printf(" or ");
    752 		else if(nsf>2)
    753 		{
    754 			if(i!=nsf-1) printf(", ");
    755 			if(i==nsf-2) printf("or ");
    756 		}
    757 		if(i%8==0 && i!=0) printf("\n     ");
    758 	}
    759 	printf(")\n");
    760 	printf("-hflip, -vflip, -transpose, -transverse, -rot90, -rot180, -rot270 =\n");
    761 	printf("     Perform the corresponding lossless transform prior to\n");
    762 	printf("     decompression (these options are mutually exclusive)\n");
    763 	printf("-grayscale = Perform lossless grayscale conversion prior to decompression\n");
    764 	printf("     test (can be combined with the other transforms above)\n");
    765 	printf("-benchtime <t> = Run each benchmark for at least <t> seconds (default = 5.0)\n");
    766 	printf("-warmup <w> = Execute each benchmark <w> times to prime the cache before\n");
    767 	printf("     taking performance measurements (default = 1)\n");
    768 	printf("-componly = Stop after running compression tests.  Do not test decompression.\n");
    769 	printf("-nowrite = Do not write reference or output images (improves consistency of\n");
    770 	printf("     performance measurements.)\n\n");
    771 	printf("NOTE:  If the quality is specified as a range (e.g. 90-100), a separate\n");
    772 	printf("test will be performed for all quality values in the range.\n\n");
    773 	exit(1);
    774 }
    775 
    776 
    777 int main(int argc, char *argv[])
    778 {
    779 	unsigned char *srcbuf=NULL;  int w=0, h=0, i, j;
    780 	int minqual=-1, maxqual=-1;  char *temp;
    781 	int minarg=2, retval=0, subsamp=-1;
    782 
    783 	if((scalingfactors=tjGetScalingFactors(&nsf))==NULL || nsf==0)
    784 		_throwtj("executing tjGetScalingFactors()");
    785 
    786 	if(argc<minarg) usage(argv[0]);
    787 
    788 	temp=strrchr(argv[1], '.');
    789 	if(temp!=NULL)
    790 	{
    791 		if(!strcasecmp(temp, ".bmp")) ext="bmp";
    792 		if(!strcasecmp(temp, ".jpg") || !strcasecmp(temp, ".jpeg")) decomponly=1;
    793 	}
    794 
    795 	printf("\n");
    796 
    797 	if(!decomponly)
    798 	{
    799 		minarg=3;
    800 		if(argc<minarg) usage(argv[0]);
    801 		if((minqual=atoi(argv[2]))<1 || minqual>100)
    802 		{
    803 			puts("ERROR: Quality must be between 1 and 100.");
    804 			exit(1);
    805 		}
    806 		if((temp=strchr(argv[2], '-'))!=NULL && strlen(temp)>1
    807 			&& sscanf(&temp[1], "%d", &maxqual)==1 && maxqual>minqual && maxqual>=1
    808 			&& maxqual<=100) {}
    809 		else maxqual=minqual;
    810 	}
    811 
    812 	if(argc>minarg)
    813 	{
    814 		for(i=minarg; i<argc; i++)
    815 		{
    816 			if(!strcasecmp(argv[i], "-tile"))
    817 			{
    818 				dotile=1;  xformopt|=TJXOPT_CROP;
    819 			}
    820 			if(!strcasecmp(argv[i], "-fastupsample"))
    821 			{
    822 				printf("Using fast upsampling code\n\n");
    823 				flags|=TJFLAG_FASTUPSAMPLE;
    824 			}
    825 			if(!strcasecmp(argv[i], "-fastdct"))
    826 			{
    827 				printf("Using fastest DCT/IDCT algorithm\n\n");
    828 				flags|=TJFLAG_FASTDCT;
    829 			}
    830 			if(!strcasecmp(argv[i], "-accuratedct"))
    831 			{
    832 				printf("Using most accurate DCT/IDCT algorithm\n\n");
    833 				flags|=TJFLAG_ACCURATEDCT;
    834 			}
    835 			if(!strcasecmp(argv[i], "-rgb")) pf=TJPF_RGB;
    836 			if(!strcasecmp(argv[i], "-rgbx")) pf=TJPF_RGBX;
    837 			if(!strcasecmp(argv[i], "-bgr")) pf=TJPF_BGR;
    838 			if(!strcasecmp(argv[i], "-bgrx")) pf=TJPF_BGRX;
    839 			if(!strcasecmp(argv[i], "-xbgr")) pf=TJPF_XBGR;
    840 			if(!strcasecmp(argv[i], "-xrgb")) pf=TJPF_XRGB;
    841 			if(!strcasecmp(argv[i], "-cmyk")) pf=TJPF_CMYK;
    842 			if(!strcasecmp(argv[i], "-bottomup")) flags|=TJFLAG_BOTTOMUP;
    843 			if(!strcasecmp(argv[i], "-quiet")) quiet=1;
    844 			if(!strcasecmp(argv[i], "-qq")) quiet=2;
    845 			if(!strcasecmp(argv[i], "-scale") && i<argc-1)
    846 			{
    847 				int temp1=0, temp2=0, match=0;
    848 				if(sscanf(argv[++i], "%d/%d", &temp1, &temp2)==2)
    849 				{
    850 					for(j=0; j<nsf; j++)
    851 					{
    852 						if((double)temp1/(double)temp2
    853 							== (double)scalingfactors[j].num/(double)scalingfactors[j].denom)
    854 						{
    855 							sf=scalingfactors[j];
    856 							match=1;  break;
    857 						}
    858 					}
    859 					if(!match) usage(argv[0]);
    860 				}
    861 				else usage(argv[0]);
    862 			}
    863 			if(!strcasecmp(argv[i], "-hflip")) xformop=TJXOP_HFLIP;
    864 			if(!strcasecmp(argv[i], "-vflip")) xformop=TJXOP_VFLIP;
    865 			if(!strcasecmp(argv[i], "-transpose")) xformop=TJXOP_TRANSPOSE;
    866 			if(!strcasecmp(argv[i], "-transverse")) xformop=TJXOP_TRANSVERSE;
    867 			if(!strcasecmp(argv[i], "-rot90")) xformop=TJXOP_ROT90;
    868 			if(!strcasecmp(argv[i], "-rot180")) xformop=TJXOP_ROT180;
    869 			if(!strcasecmp(argv[i], "-rot270")) xformop=TJXOP_ROT270;
    870 			if(!strcasecmp(argv[i], "-grayscale")) xformopt|=TJXOPT_GRAY;
    871 			if(!strcasecmp(argv[i], "-custom")) customFilter=dummyDCTFilter;
    872 			if(!strcasecmp(argv[i], "-nooutput")) xformopt|=TJXOPT_NOOUTPUT;
    873 			if(!strcasecmp(argv[i], "-benchtime") && i<argc-1)
    874 			{
    875 				double temp=atof(argv[++i]);
    876 				if(temp>0.0) benchtime=temp;
    877 				else usage(argv[0]);
    878 			}
    879 			if(!strcasecmp(argv[i], "-warmup") && i<argc-1)
    880 			{
    881 				int temp=atoi(argv[++i]);
    882 				if(temp>=0)
    883 				{
    884 					warmup=temp;
    885 					printf("Warmup runs = %d\n\n", warmup);
    886 				}
    887 				else usage(argv[0]);
    888 			}
    889 			if(!strcmp(argv[i], "-?")) usage(argv[0]);
    890 			if(!strcasecmp(argv[i], "-alloc")) flags&=(~TJFLAG_NOREALLOC);
    891 			if(!strcasecmp(argv[i], "-bmp")) ext="bmp";
    892 			if(!strcasecmp(argv[i], "-yuv"))
    893 			{
    894 				printf("Testing YUV planar encoding/decoding\n\n");
    895 				doyuv=1;
    896 			}
    897 			if(!strcasecmp(argv[i], "-yuvpad") && i<argc-1)
    898 			{
    899 				int temp=atoi(argv[++i]);
    900 				if(temp>=1) yuvpad=temp;
    901 			}
    902 			if(!strcasecmp(argv[i], "-subsamp") && i<argc-1)
    903 			{
    904 				i++;
    905 				if(toupper(argv[i][0])=='G') subsamp=TJSAMP_GRAY;
    906 				else
    907 				{
    908 					int temp=atoi(argv[i]);
    909 					switch(temp)
    910 					{
    911 						case 444:  subsamp=TJSAMP_444;  break;
    912 						case 422:  subsamp=TJSAMP_422;  break;
    913 						case 440:  subsamp=TJSAMP_440;  break;
    914 						case 420:  subsamp=TJSAMP_420;  break;
    915 						case 411:  subsamp=TJSAMP_411;  break;
    916 					}
    917 				}
    918 			}
    919 			if(!strcasecmp(argv[i], "-componly")) componly=1;
    920 			if(!strcasecmp(argv[i], "-nowrite")) dowrite=0;
    921 		}
    922 	}
    923 
    924 	if((sf.num!=1 || sf.denom!=1) && dotile)
    925 	{
    926 		printf("Disabling tiled compression/decompression tests, because those tests do not\n");
    927 		printf("work when scaled decompression is enabled.\n");
    928 		dotile=0;
    929 	}
    930 
    931 	if((flags&TJFLAG_NOREALLOC)==0 && dotile)
    932 	{
    933 		printf("Disabling tiled compression/decompression tests, because those tests do not\n");
    934 		printf("work when dynamic JPEG buffer allocation is enabled.\n\n");
    935 		dotile=0;
    936 	}
    937 
    938 	if(!decomponly)
    939 	{
    940 		if(loadbmp(argv[1], &srcbuf, &w, &h, pf, (flags&TJFLAG_BOTTOMUP)!=0)==-1)
    941 			_throwbmp("loading bitmap");
    942 		temp=strrchr(argv[1], '.');
    943 		if(temp!=NULL) *temp='\0';
    944 	}
    945 
    946 	if(quiet==1 && !decomponly)
    947 	{
    948 		printf("All performance values in Mpixels/sec\n\n");
    949 		printf("Bitmap     JPEG     JPEG  %s  %s   ",
    950 			dotile? "Tile ":"Image", dotile? "Tile ":"Image");
    951 		if(doyuv) printf("Encode  ");
    952 		printf("Comp    Comp    Decomp  ");
    953 		if(doyuv) printf("Decode");
    954 		printf("\n");
    955 		printf("Format     Subsamp  Qual  Width  Height  ");
    956 		if(doyuv) printf("Perf    ");
    957 		printf("Perf    Ratio   Perf    ");
    958 		if(doyuv) printf("Perf");
    959 		printf("\n\n");
    960 	}
    961 
    962 	if(decomponly)
    963 	{
    964 		decompTest(argv[1]);
    965 		printf("\n");
    966 		goto bailout;
    967 	}
    968 	if(subsamp>=0 && subsamp<TJ_NUMSAMP)
    969 	{
    970 		for(i=maxqual; i>=minqual; i--)
    971 			fullTest(srcbuf, w, h, subsamp, i, argv[1]);
    972 		printf("\n");
    973 	}
    974 	else
    975 	{
    976 		if(pf!=TJPF_CMYK)
    977 		{
    978 			for(i=maxqual; i>=minqual; i--)
    979 				fullTest(srcbuf, w, h, TJSAMP_GRAY, i, argv[1]);
    980 			printf("\n");
    981 		}
    982 		for(i=maxqual; i>=minqual; i--)
    983 			fullTest(srcbuf, w, h, TJSAMP_420, i, argv[1]);
    984 		printf("\n");
    985 		for(i=maxqual; i>=minqual; i--)
    986 			fullTest(srcbuf, w, h, TJSAMP_422, i, argv[1]);
    987 		printf("\n");
    988 		for(i=maxqual; i>=minqual; i--)
    989 			fullTest(srcbuf, w, h, TJSAMP_444, i, argv[1]);
    990 		printf("\n");
    991 	}
    992 
    993 	bailout:
    994 	if(srcbuf) free(srcbuf);
    995 	return retval;
    996 }
    997