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      1 /*
      2  * Copyright (C)2009-2017 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, 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, warmup=1.0;
     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=-1;
    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 		elapsed+=gettime()-start;
    180 		if(iter>=0)
    181 		{
    182 			iter++;
    183 			if(elapsed>=benchtime) break;
    184 		}
    185 		else if(elapsed>=warmup)
    186 		{
    187 			iter=0;
    188 			elapsed=elapsedDecode=0.;
    189 		}
    190 	}
    191 	if(doyuv) elapsed-=elapsedDecode;
    192 
    193 	if(tjDestroy(handle)==-1) _throwtj("executing tjDestroy()");
    194 	handle=NULL;
    195 
    196 	if(quiet)
    197 	{
    198 		printf("%-6s%s",
    199 			sigfig((double)(w*h)/1000000.*(double)iter/elapsed, 4, tempstr, 1024),
    200 			quiet==2? "\n":"  ");
    201 		if(doyuv)
    202 			printf("%s\n",
    203 				sigfig((double)(w*h)/1000000.*(double)iter/elapsedDecode, 4, tempstr,
    204 					1024));
    205 		else if(quiet!=2) printf("\n");
    206 	}
    207 	else
    208 	{
    209 		printf("%s --> Frame rate:         %f fps\n",
    210 			doyuv? "Decomp to YUV":"Decompress   ", (double)iter/elapsed);
    211 		printf("                  Throughput:         %f Megapixels/sec\n",
    212 			(double)(w*h)/1000000.*(double)iter/elapsed);
    213 		if(doyuv)
    214 		{
    215 			printf("YUV Decode    --> Frame rate:         %f fps\n",
    216 				(double)iter/elapsedDecode);
    217 			printf("                  Throughput:         %f Megapixels/sec\n",
    218 				(double)(w*h)/1000000.*(double)iter/elapsedDecode);
    219 		}
    220 	}
    221 
    222 	if (!dowrite) goto bailout;
    223 
    224 	if(sf.num!=1 || sf.denom!=1)
    225 		snprintf(sizestr, 20, "%d_%d", sf.num, sf.denom);
    226 	else if(tilew!=w || tileh!=h)
    227 		snprintf(sizestr, 20, "%dx%d", tilew, tileh);
    228 	else snprintf(sizestr, 20, "full");
    229 	if(decomponly)
    230 		snprintf(tempstr, 1024, "%s_%s.%s", filename, sizestr, ext);
    231 	else
    232 		snprintf(tempstr, 1024, "%s_%s%s_%s.%s", filename, subName[subsamp],
    233 			qualstr, sizestr, ext);
    234 
    235 	if(savebmp(tempstr, dstbuf, scaledw, scaledh, pf,
    236 		(flags&TJFLAG_BOTTOMUP)!=0)==-1)
    237 		_throwbmp("saving bitmap");
    238 	ptr=strrchr(tempstr, '.');
    239 	snprintf(ptr, 1024-(ptr-tempstr), "-err.%s", ext);
    240 	if(srcbuf && sf.num==1 && sf.denom==1)
    241 	{
    242 		if(!quiet) printf("Compression error written to %s.\n", tempstr);
    243 		if(subsamp==TJ_GRAYSCALE)
    244 		{
    245 			int index, index2;
    246 			for(row=0, index=0; row<h; row++, index+=pitch)
    247 			{
    248 				for(col=0, index2=index; col<w; col++, index2+=ps)
    249 				{
    250 					int rindex=index2+tjRedOffset[pf];
    251 					int gindex=index2+tjGreenOffset[pf];
    252 					int bindex=index2+tjBlueOffset[pf];
    253 					int y=(int)((double)srcbuf[rindex]*0.299
    254 						+ (double)srcbuf[gindex]*0.587
    255 						+ (double)srcbuf[bindex]*0.114 + 0.5);
    256 					if(y>255) y=255;
    257 					if(y<0) y=0;
    258 					dstbuf[rindex]=abs(dstbuf[rindex]-y);
    259 					dstbuf[gindex]=abs(dstbuf[gindex]-y);
    260 					dstbuf[bindex]=abs(dstbuf[bindex]-y);
    261 				}
    262 			}
    263 		}
    264 		else
    265 		{
    266 			for(row=0; row<h; row++)
    267 				for(col=0; col<w*ps; col++)
    268 					dstbuf[pitch*row+col]
    269 						=abs(dstbuf[pitch*row+col]-srcbuf[pitch*row+col]);
    270 		}
    271 		if(savebmp(tempstr, dstbuf, w, h, pf,
    272 			(flags&TJFLAG_BOTTOMUP)!=0)==-1)
    273 			_throwbmp("saving bitmap");
    274 	}
    275 
    276 	bailout:
    277 	if(file) fclose(file);
    278 	if(handle) tjDestroy(handle);
    279 	if(dstbuf && dstbufalloc) free(dstbuf);
    280 	if(yuvbuf) free(yuvbuf);
    281 	return retval;
    282 }
    283 
    284 
    285 int fullTest(unsigned char *srcbuf, int w, int h, int subsamp, int jpegqual,
    286 	char *filename)
    287 {
    288 	char tempstr[1024], tempstr2[80];
    289 	FILE *file=NULL;  tjhandle handle=NULL;
    290 	unsigned char **jpegbuf=NULL, *yuvbuf=NULL, *tmpbuf=NULL, *srcptr, *srcptr2;
    291 	double start, elapsed, elapsedEncode;
    292 	int totaljpegsize=0, row, col, i, tilew=w, tileh=h, retval=0;
    293 	int iter, yuvsize=0;
    294 	unsigned long *jpegsize=NULL;
    295 	int ps=tjPixelSize[pf];
    296 	int ntilesw=1, ntilesh=1, pitch=w*ps;
    297 	const char *pfStr=pixFormatStr[pf];
    298 
    299 	if((tmpbuf=(unsigned char *)malloc(pitch*h)) == NULL)
    300 		_throwunix("allocating temporary image buffer");
    301 
    302 	if(!quiet)
    303 		printf(">>>>>  %s (%s) <--> JPEG %s Q%d  <<<<<\n", pfStr,
    304 			(flags&TJFLAG_BOTTOMUP)? "Bottom-up":"Top-down", subNameLong[subsamp],
    305 			jpegqual);
    306 
    307 	for(tilew=dotile? 8:w, tileh=dotile? 8:h; ; tilew*=2, tileh*=2)
    308 	{
    309 		if(tilew>w) tilew=w;
    310 		if(tileh>h) tileh=h;
    311 		ntilesw=(w+tilew-1)/tilew;  ntilesh=(h+tileh-1)/tileh;
    312 
    313 		if((jpegbuf=(unsigned char **)malloc(sizeof(unsigned char *)
    314 			*ntilesw*ntilesh))==NULL)
    315 			_throwunix("allocating JPEG tile array");
    316 		memset(jpegbuf, 0, sizeof(unsigned char *)*ntilesw*ntilesh);
    317 		if((jpegsize=(unsigned long *)malloc(sizeof(unsigned long)
    318 			*ntilesw*ntilesh))==NULL)
    319 			_throwunix("allocating JPEG size array");
    320 		memset(jpegsize, 0, sizeof(unsigned long)*ntilesw*ntilesh);
    321 
    322 		if((flags&TJFLAG_NOREALLOC)!=0)
    323 			for(i=0; i<ntilesw*ntilesh; i++)
    324 			{
    325 				if((jpegbuf[i]=(unsigned char *)tjAlloc(tjBufSize(tilew, tileh,
    326 					subsamp)))==NULL)
    327 					_throwunix("allocating JPEG tiles");
    328 			}
    329 
    330 		/* Compression test */
    331 		if(quiet==1)
    332 			printf("%-4s (%s)  %-5s    %-3d   ", pfStr,
    333 				(flags&TJFLAG_BOTTOMUP)? "BU":"TD", subNameLong[subsamp], jpegqual);
    334 		for(i=0; i<h; i++)
    335 			memcpy(&tmpbuf[pitch*i], &srcbuf[w*ps*i], w*ps);
    336 		if((handle=tjInitCompress())==NULL)
    337 			_throwtj("executing tjInitCompress()");
    338 
    339 		if(doyuv)
    340 		{
    341 			yuvsize=tjBufSizeYUV2(tilew, yuvpad, tileh, subsamp);
    342 			if((yuvbuf=(unsigned char *)malloc(yuvsize))==NULL)
    343 				_throwunix("allocating YUV buffer");
    344 			memset(yuvbuf, 127, yuvsize);
    345 		}
    346 
    347 		/* Benchmark */
    348 		iter=-1;
    349 		elapsed=elapsedEncode=0.;
    350 		while(1)
    351 		{
    352 			int tile=0;
    353 			totaljpegsize=0;
    354 			start=gettime();
    355 			for(row=0, srcptr=srcbuf; row<ntilesh; row++, srcptr+=pitch*tileh)
    356 			{
    357 				for(col=0, srcptr2=srcptr; col<ntilesw; col++, tile++,
    358 					srcptr2+=ps*tilew)
    359 				{
    360 					int width=min(tilew, w-col*tilew);
    361 					int height=min(tileh, h-row*tileh);
    362 					if(doyuv)
    363 					{
    364 						double startEncode=gettime();
    365 						if(tjEncodeYUV3(handle, srcptr2, width, pitch, height, pf, yuvbuf,
    366 							yuvpad, subsamp, flags)==-1)
    367 							_throwtj("executing tjEncodeYUV3()");
    368 						if(iter>=0) elapsedEncode+=gettime()-startEncode;
    369 						if(tjCompressFromYUV(handle, yuvbuf, width, yuvpad, height,
    370 							subsamp, &jpegbuf[tile], &jpegsize[tile], jpegqual, flags)==-1)
    371 							_throwtj("executing tjCompressFromYUV()");
    372 					}
    373 					else
    374 					{
    375 						if(tjCompress2(handle, srcptr2, width, pitch, height, pf,
    376 							&jpegbuf[tile], &jpegsize[tile], subsamp, jpegqual, flags)==-1)
    377 							_throwtj("executing tjCompress2()");
    378 					}
    379 					totaljpegsize+=jpegsize[tile];
    380 				}
    381 			}
    382 			elapsed+=gettime()-start;
    383 			if(iter>=0)
    384 			{
    385 				iter++;
    386 				if(elapsed>=benchtime) break;
    387 			}
    388 			else if(elapsed>=warmup)
    389 			{
    390 				iter=0;
    391 				elapsed=elapsedEncode=0.;
    392 			}
    393 		}
    394 		if(doyuv) elapsed-=elapsedEncode;
    395 
    396 		if(tjDestroy(handle)==-1) _throwtj("executing tjDestroy()");
    397 		handle=NULL;
    398 
    399 		if(quiet==1) printf("%-5d  %-5d   ", tilew, tileh);
    400 		if(quiet)
    401 		{
    402 			if(doyuv)
    403 				printf("%-6s%s",
    404 					sigfig((double)(w*h)/1000000.*(double)iter/elapsedEncode, 4, tempstr,
    405 						1024), quiet==2? "\n":"  ");
    406 			printf("%-6s%s",
    407 				sigfig((double)(w*h)/1000000.*(double)iter/elapsed, 4,	tempstr, 1024),
    408 				quiet==2? "\n":"  ");
    409 			printf("%-6s%s",
    410 				sigfig((double)(w*h*ps)/(double)totaljpegsize, 4, tempstr2, 80),
    411 				quiet==2? "\n":"  ");
    412 		}
    413 		else
    414 		{
    415 			printf("\n%s size: %d x %d\n", dotile? "Tile":"Image", tilew,
    416 				tileh);
    417 			if(doyuv)
    418 			{
    419 				printf("Encode YUV    --> Frame rate:         %f fps\n",
    420 					(double)iter/elapsedEncode);
    421 				printf("                  Output image size:  %d bytes\n", yuvsize);
    422 				printf("                  Compression ratio:  %f:1\n",
    423 					(double)(w*h*ps)/(double)yuvsize);
    424 				printf("                  Throughput:         %f Megapixels/sec\n",
    425 					(double)(w*h)/1000000.*(double)iter/elapsedEncode);
    426 				printf("                  Output bit stream:  %f Megabits/sec\n",
    427 					(double)yuvsize*8./1000000.*(double)iter/elapsedEncode);
    428 			}
    429 			printf("%s --> Frame rate:         %f fps\n",
    430 				doyuv? "Comp from YUV":"Compress     ", (double)iter/elapsed);
    431 			printf("                  Output image size:  %d bytes\n",
    432 				totaljpegsize);
    433 			printf("                  Compression ratio:  %f:1\n",
    434 				(double)(w*h*ps)/(double)totaljpegsize);
    435 			printf("                  Throughput:         %f Megapixels/sec\n",
    436 				(double)(w*h)/1000000.*(double)iter/elapsed);
    437 			printf("                  Output bit stream:  %f Megabits/sec\n",
    438 				(double)totaljpegsize*8./1000000.*(double)iter/elapsed);
    439 		}
    440 		if(tilew==w && tileh==h && dowrite)
    441 		{
    442 			snprintf(tempstr, 1024, "%s_%s_Q%d.jpg", filename, subName[subsamp],
    443 				jpegqual);
    444 			if((file=fopen(tempstr, "wb"))==NULL)
    445 				_throwunix("opening reference image");
    446 			if(fwrite(jpegbuf[0], jpegsize[0], 1, file)!=1)
    447 				_throwunix("writing reference image");
    448 			fclose(file);  file=NULL;
    449 			if(!quiet) printf("Reference image written to %s\n", tempstr);
    450 		}
    451 
    452 		/* Decompression test */
    453 		if(!componly)
    454 		{
    455 			if(decomp(srcbuf, jpegbuf, jpegsize, tmpbuf, w, h, subsamp, jpegqual,
    456 				filename, tilew, tileh)==-1)
    457 				goto bailout;
    458 		}
    459 
    460 		for(i=0; i<ntilesw*ntilesh; i++)
    461 		{
    462 			if(jpegbuf[i]) tjFree(jpegbuf[i]);
    463 			jpegbuf[i]=NULL;
    464 		}
    465 		free(jpegbuf);  jpegbuf=NULL;
    466 		free(jpegsize);  jpegsize=NULL;
    467 		if(doyuv)
    468 		{
    469 			free(yuvbuf);  yuvbuf=NULL;
    470 		}
    471 
    472 		if(tilew==w && tileh==h) break;
    473 	}
    474 
    475 	bailout:
    476 	if(file) {fclose(file);  file=NULL;}
    477 	if(jpegbuf)
    478 	{
    479 		for(i=0; i<ntilesw*ntilesh; i++)
    480 		{
    481 			if(jpegbuf[i]) tjFree(jpegbuf[i]);
    482 			jpegbuf[i]=NULL;
    483 		}
    484 		free(jpegbuf);  jpegbuf=NULL;
    485 	}
    486 	if(yuvbuf) {free(yuvbuf);  yuvbuf=NULL;}
    487 	if(jpegsize) {free(jpegsize);  jpegsize=NULL;}
    488 	if(tmpbuf) {free(tmpbuf);  tmpbuf=NULL;}
    489 	if(handle) {tjDestroy(handle);  handle=NULL;}
    490 	return retval;
    491 }
    492 
    493 
    494 int decompTest(char *filename)
    495 {
    496 	FILE *file=NULL;  tjhandle handle=NULL;
    497 	unsigned char **jpegbuf=NULL, *srcbuf=NULL;
    498 	unsigned long *jpegsize=NULL, srcsize, totaljpegsize;
    499 	tjtransform *t=NULL;
    500 	int w=0, h=0, subsamp=-1, cs=-1, _w, _h, _tilew, _tileh,
    501 		_ntilesw, _ntilesh, _subsamp;
    502 	char *temp=NULL, tempstr[80], tempstr2[80];
    503 	int row, col, i, iter, tilew, tileh, ntilesw=1, ntilesh=1, retval=0;
    504 	double start, elapsed;
    505 	int ps=tjPixelSize[pf], tile, decompsrc=0;
    506 
    507 	if((file=fopen(filename, "rb"))==NULL)
    508 		_throwunix("opening file");
    509 	if(fseek(file, 0, SEEK_END)<0 || (srcsize=ftell(file))==(unsigned long)-1)
    510 		_throwunix("determining file size");
    511 	if((srcbuf=(unsigned char *)malloc(srcsize))==NULL)
    512 		_throwunix("allocating memory");
    513 	if(fseek(file, 0, SEEK_SET)<0)
    514 		_throwunix("setting file position");
    515 	if(fread(srcbuf, srcsize, 1, file)<1)
    516 		_throwunix("reading JPEG data");
    517 	fclose(file);  file=NULL;
    518 
    519 	temp=strrchr(filename, '.');
    520 	if(temp!=NULL) *temp='\0';
    521 
    522 	if((handle=tjInitTransform())==NULL)
    523 		_throwtj("executing tjInitTransform()");
    524 	if(tjDecompressHeader3(handle, srcbuf, srcsize, &w, &h, &subsamp, &cs)==-1)
    525 		_throwtj("executing tjDecompressHeader3()");
    526 	if(cs==TJCS_YCCK || cs==TJCS_CMYK)
    527 	{
    528 		pf=TJPF_CMYK;  ps=tjPixelSize[pf];
    529 	}
    530 
    531 	if(quiet==1)
    532 	{
    533 		printf("All performance values in Mpixels/sec\n\n");
    534 		printf("Bitmap     JPEG   JPEG     %s  %s   Xform   Comp    Decomp  ",
    535 			dotile? "Tile ":"Image", dotile? "Tile ":"Image");
    536 		if(doyuv) printf("Decode");
    537 		printf("\n");
    538 		printf("Format     CS     Subsamp  Width  Height  Perf    Ratio   Perf    ");
    539 		if(doyuv) printf("Perf");
    540 		printf("\n\n");
    541 	}
    542 	else if(!quiet)
    543 		printf(">>>>>  JPEG %s --> %s (%s)  <<<<<\n",
    544 			formatName(subsamp, cs, tempstr), pixFormatStr[pf],
    545 			(flags&TJFLAG_BOTTOMUP)? "Bottom-up":"Top-down");
    546 
    547 	for(tilew=dotile? 16:w, tileh=dotile? 16:h; ; tilew*=2, tileh*=2)
    548 	{
    549 		if(tilew>w) tilew=w;
    550 		if(tileh>h) tileh=h;
    551 		ntilesw=(w+tilew-1)/tilew;  ntilesh=(h+tileh-1)/tileh;
    552 
    553 		if((jpegbuf=(unsigned char **)malloc(sizeof(unsigned char *)
    554 			*ntilesw*ntilesh))==NULL)
    555 			_throwunix("allocating JPEG tile array");
    556 		memset(jpegbuf, 0, sizeof(unsigned char *)*ntilesw*ntilesh);
    557 		if((jpegsize=(unsigned long *)malloc(sizeof(unsigned long)
    558 			*ntilesw*ntilesh))==NULL)
    559 			_throwunix("allocating JPEG size array");
    560 		memset(jpegsize, 0, sizeof(unsigned long)*ntilesw*ntilesh);
    561 
    562 		if((flags&TJFLAG_NOREALLOC)!=0 || !dotile)
    563 			for(i=0; i<ntilesw*ntilesh; i++)
    564 			{
    565 				if((jpegbuf[i]=(unsigned char *)tjAlloc(tjBufSize(tilew, tileh,
    566 					subsamp)))==NULL)
    567 					_throwunix("allocating JPEG tiles");
    568 			}
    569 
    570 		_w=w;  _h=h;  _tilew=tilew;  _tileh=tileh;
    571 		if(!quiet)
    572 		{
    573 			printf("\n%s size: %d x %d", dotile? "Tile":"Image", _tilew,
    574 				_tileh);
    575 			if(sf.num!=1 || sf.denom!=1)
    576 				printf(" --> %d x %d", TJSCALED(_w, sf), TJSCALED(_h, sf));
    577 			printf("\n");
    578 		}
    579 		else if(quiet==1)
    580 		{
    581 			printf("%-4s (%s)  %-5s  %-5s    ", pixFormatStr[pf],
    582 				(flags&TJFLAG_BOTTOMUP)? "BU":"TD", csName[cs], subNameLong[subsamp]);
    583 			printf("%-5d  %-5d   ", tilew, tileh);
    584 		}
    585 
    586 		_subsamp=subsamp;
    587 		if(dotile || xformop!=TJXOP_NONE || xformopt!=0 || customFilter)
    588 		{
    589 			if((t=(tjtransform *)malloc(sizeof(tjtransform)*ntilesw*ntilesh))
    590 				==NULL)
    591 				_throwunix("allocating image transform array");
    592 
    593 			if(xformop==TJXOP_TRANSPOSE || xformop==TJXOP_TRANSVERSE
    594 				|| xformop==TJXOP_ROT90 || xformop==TJXOP_ROT270)
    595 			{
    596 				_w=h;  _h=w;  _tilew=tileh;  _tileh=tilew;
    597 			}
    598 
    599 			if(xformopt&TJXOPT_GRAY) _subsamp=TJ_GRAYSCALE;
    600 			if(xformop==TJXOP_HFLIP || xformop==TJXOP_ROT180)
    601 				_w=_w-(_w%tjMCUWidth[_subsamp]);
    602 			if(xformop==TJXOP_VFLIP || xformop==TJXOP_ROT180)
    603 				_h=_h-(_h%tjMCUHeight[_subsamp]);
    604 			if(xformop==TJXOP_TRANSVERSE || xformop==TJXOP_ROT90)
    605 				_w=_w-(_w%tjMCUHeight[_subsamp]);
    606 			if(xformop==TJXOP_TRANSVERSE || xformop==TJXOP_ROT270)
    607 				_h=_h-(_h%tjMCUWidth[_subsamp]);
    608 			_ntilesw=(_w+_tilew-1)/_tilew;
    609 			_ntilesh=(_h+_tileh-1)/_tileh;
    610 
    611 			if(xformop==TJXOP_TRANSPOSE || xformop==TJXOP_TRANSVERSE
    612 				|| xformop==TJXOP_ROT90 || xformop==TJXOP_ROT270)
    613 			{
    614 				if(_subsamp==TJSAMP_422) _subsamp=TJSAMP_440;
    615 				else if(_subsamp==TJSAMP_440) _subsamp=TJSAMP_422;
    616 			}
    617 
    618 			for(row=0, tile=0; row<_ntilesh; row++)
    619 			{
    620 				for(col=0; col<_ntilesw; col++, tile++)
    621 				{
    622 					t[tile].r.w=min(_tilew, _w-col*_tilew);
    623 					t[tile].r.h=min(_tileh, _h-row*_tileh);
    624 					t[tile].r.x=col*_tilew;
    625 					t[tile].r.y=row*_tileh;
    626 					t[tile].op=xformop;
    627 					t[tile].options=xformopt|TJXOPT_TRIM;
    628 					t[tile].customFilter=customFilter;
    629 					if(t[tile].options&TJXOPT_NOOUTPUT && jpegbuf[tile])
    630 					{
    631 						tjFree(jpegbuf[tile]);  jpegbuf[tile]=NULL;
    632 					}
    633 				}
    634 			}
    635 
    636 			iter=-1;
    637 			elapsed=0.;
    638 			while(1)
    639 			{
    640 				start=gettime();
    641 				if(tjTransform(handle, srcbuf, srcsize, _ntilesw*_ntilesh, jpegbuf,
    642 					jpegsize, t, flags)==-1)
    643 					_throwtj("executing tjTransform()");
    644 				elapsed+=gettime()-start;
    645 				if(iter>=0)
    646 				{
    647 					iter++;
    648 					if(elapsed>=benchtime) break;
    649 				}
    650 				else if(elapsed>=warmup)
    651 				{
    652 					iter=0;
    653 					elapsed=0.;
    654 				}
    655 			}
    656 
    657 			free(t);  t=NULL;
    658 
    659 			for(tile=0, totaljpegsize=0; tile<_ntilesw*_ntilesh; tile++)
    660 				totaljpegsize+=jpegsize[tile];
    661 
    662 			if(quiet)
    663 			{
    664 				printf("%-6s%s%-6s%s",
    665 					sigfig((double)(w*h)/1000000./elapsed, 4, tempstr, 80),
    666 					quiet==2? "\n":"  ",
    667 					sigfig((double)(w*h*ps)/(double)totaljpegsize, 4, tempstr2, 80),
    668 					quiet==2? "\n":"  ");
    669 			}
    670 			else if(!quiet)
    671 			{
    672 				printf("Transform     --> Frame rate:         %f fps\n", 1.0/elapsed);
    673 				printf("                  Output image size:  %lu bytes\n", totaljpegsize);
    674 				printf("                  Compression ratio:  %f:1\n",
    675 					(double)(w*h*ps)/(double)totaljpegsize);
    676 				printf("                  Throughput:         %f Megapixels/sec\n",
    677 					(double)(w*h)/1000000./elapsed);
    678 				printf("                  Output bit stream:  %f Megabits/sec\n",
    679 					(double)totaljpegsize*8./1000000./elapsed);
    680 			}
    681 		}
    682 		else
    683 		{
    684 			if(quiet==1) printf("N/A     N/A     ");
    685 			tjFree(jpegbuf[0]);
    686 			jpegbuf[0]=NULL;
    687 			decompsrc=1;
    688 		}
    689 
    690 		if(w==tilew) _tilew=_w;
    691 		if(h==tileh) _tileh=_h;
    692 		if(!(xformopt&TJXOPT_NOOUTPUT))
    693 		{
    694 			if(decomp(NULL, decompsrc? &srcbuf:jpegbuf, decompsrc? &srcsize:jpegsize,
    695 					NULL, _w, _h, _subsamp, 0, filename, _tilew, _tileh)==-1)
    696 				goto bailout;
    697 		}
    698 		else if(quiet==1) printf("N/A\n");
    699 
    700 		for(i=0; i<ntilesw*ntilesh; i++)
    701 		{
    702 			tjFree(jpegbuf[i]);  jpegbuf[i]=NULL;
    703 		}
    704 		free(jpegbuf);  jpegbuf=NULL;
    705 		if(jpegsize) {free(jpegsize);  jpegsize=NULL;}
    706 
    707 		if(tilew==w && tileh==h) break;
    708 	}
    709 
    710 	bailout:
    711 	if(file) {fclose(file);  file=NULL;}
    712 	if(jpegbuf)
    713 	{
    714 		for(i=0; i<ntilesw*ntilesh; i++)
    715 		{
    716 			if(jpegbuf[i]) tjFree(jpegbuf[i]);
    717 			jpegbuf[i]=NULL;
    718 		}
    719 		free(jpegbuf);  jpegbuf=NULL;
    720 	}
    721 	if(jpegsize) {free(jpegsize);  jpegsize=NULL;}
    722 	if(srcbuf) {free(srcbuf);  srcbuf=NULL;}
    723 	if(t) {free(t);  t=NULL;}
    724 	if(handle) {tjDestroy(handle);  handle=NULL;}
    725 	return retval;
    726 }
    727 
    728 
    729 void usage(char *progname)
    730 {
    731 	int i;
    732 	printf("USAGE: %s\n", progname);
    733 	printf("       <Inputfile (BMP|PPM)> <Quality> [options]\n\n");
    734 	printf("       %s\n", progname);
    735 	printf("       <Inputfile (JPG)> [options]\n\n");
    736 	printf("Options:\n\n");
    737 	printf("-alloc = Dynamically allocate JPEG image buffers\n");
    738 	printf("-bmp = Generate output images in Windows Bitmap format (default = PPM)\n");
    739 	printf("-bottomup = Test bottom-up compression/decompression\n");
    740 	printf("-tile = Test performance of the codec when the image is encoded as separate\n");
    741 	printf("     tiles of varying sizes.\n");
    742 	printf("-rgb, -bgr, -rgbx, -bgrx, -xbgr, -xrgb =\n");
    743 	printf("     Test the specified color conversion path in the codec (default = BGR)\n");
    744 	printf("-cmyk = Indirectly test YCCK JPEG compression/decompression (the source\n");
    745 	printf("     and destination bitmaps are still RGB.  The conversion is done\n");
    746 	printf("     internally prior to compression or after decompression.)\n");
    747 	printf("-fastupsample = Use the fastest chrominance upsampling algorithm available in\n");
    748 	printf("     the underlying codec\n");
    749 	printf("-fastdct = Use the fastest DCT/IDCT algorithms available in the underlying\n");
    750 	printf("     codec\n");
    751 	printf("-accuratedct = Use the most accurate DCT/IDCT algorithms available in the\n");
    752 	printf("     underlying codec\n");
    753 	printf("-subsamp <s> = When testing JPEG compression, this option specifies the level\n");
    754 	printf("     of chrominance subsampling to use (<s> = 444, 422, 440, 420, 411, or\n");
    755 	printf("     GRAY).  The default is to test Grayscale, 4:2:0, 4:2:2, and 4:4:4 in\n");
    756 	printf("     sequence.\n");
    757 	printf("-quiet = Output results in tabular rather than verbose format\n");
    758 	printf("-yuv = Test YUV encoding/decoding functions\n");
    759 	printf("-yuvpad <p> = If testing YUV encoding/decoding, this specifies the number of\n");
    760 	printf("     bytes to which each row of each plane in the intermediate YUV image is\n");
    761 	printf("     padded (default = 1)\n");
    762 	printf("-scale M/N = Scale down the width/height of the decompressed JPEG image by a\n");
    763 	printf("     factor of M/N (M/N = ");
    764 	for(i=0; i<nsf; i++)
    765 	{
    766 		printf("%d/%d", scalingfactors[i].num, scalingfactors[i].denom);
    767 		if(nsf==2 && i!=nsf-1) printf(" or ");
    768 		else if(nsf>2)
    769 		{
    770 			if(i!=nsf-1) printf(", ");
    771 			if(i==nsf-2) printf("or ");
    772 		}
    773 		if(i%8==0 && i!=0) printf("\n     ");
    774 	}
    775 	printf(")\n");
    776 	printf("-hflip, -vflip, -transpose, -transverse, -rot90, -rot180, -rot270 =\n");
    777 	printf("     Perform the corresponding lossless transform prior to\n");
    778 	printf("     decompression (these options are mutually exclusive)\n");
    779 	printf("-grayscale = Perform lossless grayscale conversion prior to decompression\n");
    780 	printf("     test (can be combined with the other transforms above)\n");
    781 	printf("-benchtime <t> = Run each benchmark for at least <t> seconds (default = 5.0)\n");
    782 	printf("-warmup <t> = Run each benchmark for <t> seconds (default = 1.0) prior to\n");
    783 	printf("     starting the timer, in order to prime the caches and thus improve the\n");
    784 	printf("     consistency of the results.\n");
    785 	printf("-componly = Stop after running compression tests.  Do not test decompression.\n");
    786 	printf("-nowrite = Do not write reference or output images (improves consistency of\n");
    787 	printf("     performance measurements.)\n\n");
    788 	printf("NOTE:  If the quality is specified as a range (e.g. 90-100), a separate\n");
    789 	printf("test will be performed for all quality values in the range.\n\n");
    790 	exit(1);
    791 }
    792 
    793 
    794 int main(int argc, char *argv[])
    795 {
    796 	unsigned char *srcbuf=NULL;  int w=0, h=0, i, j;
    797 	int minqual=-1, maxqual=-1;  char *temp;
    798 	int minarg=2, retval=0, subsamp=-1;
    799 
    800 	if((scalingfactors=tjGetScalingFactors(&nsf))==NULL || nsf==0)
    801 		_throwtj("executing tjGetScalingFactors()");
    802 
    803 	if(argc<minarg) usage(argv[0]);
    804 
    805 	temp=strrchr(argv[1], '.');
    806 	if(temp!=NULL)
    807 	{
    808 		if(!strcasecmp(temp, ".bmp")) ext="bmp";
    809 		if(!strcasecmp(temp, ".jpg") || !strcasecmp(temp, ".jpeg")) decomponly=1;
    810 	}
    811 
    812 	printf("\n");
    813 
    814 	if(!decomponly)
    815 	{
    816 		minarg=3;
    817 		if(argc<minarg) usage(argv[0]);
    818 		if((minqual=atoi(argv[2]))<1 || minqual>100)
    819 		{
    820 			puts("ERROR: Quality must be between 1 and 100.");
    821 			exit(1);
    822 		}
    823 		if((temp=strchr(argv[2], '-'))!=NULL && strlen(temp)>1
    824 			&& sscanf(&temp[1], "%d", &maxqual)==1 && maxqual>minqual && maxqual>=1
    825 			&& maxqual<=100) {}
    826 		else maxqual=minqual;
    827 	}
    828 
    829 	if(argc>minarg)
    830 	{
    831 		for(i=minarg; i<argc; i++)
    832 		{
    833 			if(!strcasecmp(argv[i], "-tile"))
    834 			{
    835 				dotile=1;  xformopt|=TJXOPT_CROP;
    836 			}
    837 			else if(!strcasecmp(argv[i], "-fastupsample"))
    838 			{
    839 				printf("Using fast upsampling code\n\n");
    840 				flags|=TJFLAG_FASTUPSAMPLE;
    841 			}
    842 			else if(!strcasecmp(argv[i], "-fastdct"))
    843 			{
    844 				printf("Using fastest DCT/IDCT algorithm\n\n");
    845 				flags|=TJFLAG_FASTDCT;
    846 			}
    847 			else if(!strcasecmp(argv[i], "-accuratedct"))
    848 			{
    849 				printf("Using most accurate DCT/IDCT algorithm\n\n");
    850 				flags|=TJFLAG_ACCURATEDCT;
    851 			}
    852 			else if(!strcasecmp(argv[i], "-rgb")) pf=TJPF_RGB;
    853 			else if(!strcasecmp(argv[i], "-rgbx")) pf=TJPF_RGBX;
    854 			else if(!strcasecmp(argv[i], "-bgr")) pf=TJPF_BGR;
    855 			else if(!strcasecmp(argv[i], "-bgrx")) pf=TJPF_BGRX;
    856 			else if(!strcasecmp(argv[i], "-xbgr")) pf=TJPF_XBGR;
    857 			else if(!strcasecmp(argv[i], "-xrgb")) pf=TJPF_XRGB;
    858 			else if(!strcasecmp(argv[i], "-cmyk")) pf=TJPF_CMYK;
    859 			else if(!strcasecmp(argv[i], "-bottomup")) flags|=TJFLAG_BOTTOMUP;
    860 			else if(!strcasecmp(argv[i], "-quiet")) quiet=1;
    861 			else if(!strcasecmp(argv[i], "-qq")) quiet=2;
    862 			else if(!strcasecmp(argv[i], "-scale") && i<argc-1)
    863 			{
    864 				int temp1=0, temp2=0, match=0;
    865 				if(sscanf(argv[++i], "%d/%d", &temp1, &temp2)==2)
    866 				{
    867 					for(j=0; j<nsf; j++)
    868 					{
    869 						if((double)temp1/(double)temp2
    870 							== (double)scalingfactors[j].num/(double)scalingfactors[j].denom)
    871 						{
    872 							sf=scalingfactors[j];
    873 							match=1;  break;
    874 						}
    875 					}
    876 					if(!match) usage(argv[0]);
    877 				}
    878 				else usage(argv[0]);
    879 			}
    880 			else if(!strcasecmp(argv[i], "-hflip")) xformop=TJXOP_HFLIP;
    881 			else if(!strcasecmp(argv[i], "-vflip")) xformop=TJXOP_VFLIP;
    882 			else if(!strcasecmp(argv[i], "-transpose")) xformop=TJXOP_TRANSPOSE;
    883 			else if(!strcasecmp(argv[i], "-transverse")) xformop=TJXOP_TRANSVERSE;
    884 			else if(!strcasecmp(argv[i], "-rot90")) xformop=TJXOP_ROT90;
    885 			else if(!strcasecmp(argv[i], "-rot180")) xformop=TJXOP_ROT180;
    886 			else if(!strcasecmp(argv[i], "-rot270")) xformop=TJXOP_ROT270;
    887 			else if(!strcasecmp(argv[i], "-grayscale")) xformopt|=TJXOPT_GRAY;
    888 			else if(!strcasecmp(argv[i], "-custom")) customFilter=dummyDCTFilter;
    889 			else if(!strcasecmp(argv[i], "-nooutput")) xformopt|=TJXOPT_NOOUTPUT;
    890 			else if(!strcasecmp(argv[i], "-benchtime") && i<argc-1)
    891 			{
    892 				double temp=atof(argv[++i]);
    893 				if(temp>0.0) benchtime=temp;
    894 				else usage(argv[0]);
    895 			}
    896 			else if(!strcasecmp(argv[i], "-warmup") && i<argc-1)
    897 			{
    898 				double temp=atof(argv[++i]);
    899 				if(temp>=0.0) warmup=temp;
    900 				else usage(argv[0]);
    901 				printf("Warmup time = %.1f seconds\n\n", warmup);
    902 			}
    903 			else if(!strcasecmp(argv[i], "-alloc")) flags&=(~TJFLAG_NOREALLOC);
    904 			else if(!strcasecmp(argv[i], "-bmp")) ext="bmp";
    905 			else if(!strcasecmp(argv[i], "-yuv"))
    906 			{
    907 				printf("Testing YUV planar encoding/decoding\n\n");
    908 				doyuv=1;
    909 			}
    910 			else if(!strcasecmp(argv[i], "-yuvpad") && i<argc-1)
    911 			{
    912 				int temp=atoi(argv[++i]);
    913 				if(temp>=1) yuvpad=temp;
    914 			}
    915 			else if(!strcasecmp(argv[i], "-subsamp") && i<argc-1)
    916 			{
    917 				i++;
    918 				if(toupper(argv[i][0])=='G') subsamp=TJSAMP_GRAY;
    919 				else
    920 				{
    921 					int temp=atoi(argv[i]);
    922 					switch(temp)
    923 					{
    924 						case 444:  subsamp=TJSAMP_444;  break;
    925 						case 422:  subsamp=TJSAMP_422;  break;
    926 						case 440:  subsamp=TJSAMP_440;  break;
    927 						case 420:  subsamp=TJSAMP_420;  break;
    928 						case 411:  subsamp=TJSAMP_411;  break;
    929 					}
    930 				}
    931 			}
    932 			else if(!strcasecmp(argv[i], "-componly")) componly=1;
    933 			else if(!strcasecmp(argv[i], "-nowrite")) dowrite=0;
    934 			else usage(argv[0]);
    935 		}
    936 	}
    937 
    938 	if((sf.num!=1 || sf.denom!=1) && dotile)
    939 	{
    940 		printf("Disabling tiled compression/decompression tests, because those tests do not\n");
    941 		printf("work when scaled decompression is enabled.\n");
    942 		dotile=0;
    943 	}
    944 
    945 	if((flags&TJFLAG_NOREALLOC)==0 && dotile)
    946 	{
    947 		printf("Disabling tiled compression/decompression tests, because those tests do not\n");
    948 		printf("work when dynamic JPEG buffer allocation is enabled.\n\n");
    949 		dotile=0;
    950 	}
    951 
    952 	if(!decomponly)
    953 	{
    954 		if(loadbmp(argv[1], &srcbuf, &w, &h, pf, (flags&TJFLAG_BOTTOMUP)!=0)==-1)
    955 			_throwbmp("loading bitmap");
    956 		temp=strrchr(argv[1], '.');
    957 		if(temp!=NULL) *temp='\0';
    958 	}
    959 
    960 	if(quiet==1 && !decomponly)
    961 	{
    962 		printf("All performance values in Mpixels/sec\n\n");
    963 		printf("Bitmap     JPEG     JPEG  %s  %s   ",
    964 			dotile? "Tile ":"Image", dotile? "Tile ":"Image");
    965 		if(doyuv) printf("Encode  ");
    966 		printf("Comp    Comp    Decomp  ");
    967 		if(doyuv) printf("Decode");
    968 		printf("\n");
    969 		printf("Format     Subsamp  Qual  Width  Height  ");
    970 		if(doyuv) printf("Perf    ");
    971 		printf("Perf    Ratio   Perf    ");
    972 		if(doyuv) printf("Perf");
    973 		printf("\n\n");
    974 	}
    975 
    976 	if(decomponly)
    977 	{
    978 		decompTest(argv[1]);
    979 		printf("\n");
    980 		goto bailout;
    981 	}
    982 	if(subsamp>=0 && subsamp<TJ_NUMSAMP)
    983 	{
    984 		for(i=maxqual; i>=minqual; i--)
    985 			fullTest(srcbuf, w, h, subsamp, i, argv[1]);
    986 		printf("\n");
    987 	}
    988 	else
    989 	{
    990 		if(pf!=TJPF_CMYK)
    991 		{
    992 			for(i=maxqual; i>=minqual; i--)
    993 				fullTest(srcbuf, w, h, TJSAMP_GRAY, i, argv[1]);
    994 			printf("\n");
    995 		}
    996 		for(i=maxqual; i>=minqual; i--)
    997 			fullTest(srcbuf, w, h, TJSAMP_420, i, argv[1]);
    998 		printf("\n");
    999 		for(i=maxqual; i>=minqual; i--)
   1000 			fullTest(srcbuf, w, h, TJSAMP_422, i, argv[1]);
   1001 		printf("\n");
   1002 		for(i=maxqual; i>=minqual; i--)
   1003 			fullTest(srcbuf, w, h, TJSAMP_444, i, argv[1]);
   1004 		printf("\n");
   1005 	}
   1006 
   1007 	bailout:
   1008 	if(srcbuf) free(srcbuf);
   1009 	return retval;
   1010 }
   1011