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6c9f0897afa1c2738d7222a0a9ab49e8b536a267
mozjpeg/tjbench.c
DRC 19f9d8f0fd tjTransform(): Calc dst buf size from xformed dims 
When used with TJFLAG_NOREALLOC and with TJXOP_TRANSPOSE,
TJXOP_TRANSVERSE, TJXOP_ROT90, or TJXOP_ROT270, tjTransform()
incorrectly based the destination buffer size for a transform on the
source image dimensions rather than the transformed image dimensions.
This was apparently a long-standing bug that had existed in the
tjTransform() function since its inception.  As initially implemented in
the evolving libjpeg-turbo v1.2 code base, tjTransform() required
dstSizes[i] to be set regardless of whether TJFLAG_NOREALLOC was set.
ff78e37595, which was introduced later in
the evolving libjpeg-turbo v1.2 code base, removed that requirement and
planted the seed for the bug.  However, the bug was not activated until
9b49f0e4c7 was introduced still later in
the evolving libjpeg-turbo v1.2 code base, adding a subsampling type
argument to the (new at the time) tjBufSize() function and thus making
the width and height arguments no longer commutative.

The bug opened up the possibility that a JPEG source image could cause
tjTransform() to overflow the destination buffer for a transform if all
of the following were true:
- The JPEG source image used 4:2:2, 4:4:0, or 4:1:1 subsampling.  (These
  are the only supported subsampling types for which the width and
  height arguments to tjBufSize() are not commutative.)
- The width and height of the JPEG source image were such that
  tjBufSize(height, width, subsamplingType) returned a smaller value
  than tjBufSize(width, height, subsamplingType).
- The JPEG source image contained enough metadata that the size of the
  transformed image was larger than
  tjBufSize(height, width, subsamplingType).
- TJFLAG_NOREALLOC was set.
- TJXOP_TRANSPOSE, TJXOP_TRANSVERSE, TJXOP_ROT90, or TJXOP_ROT270 was
  used.
- TJXOPT_COPYNONE was not set.
- TJXOPT_CROP was not set.
- The calling program allocated
  tjBufSize(height, width, subsamplingType) bytes for the
  destination buffer, as the API documentation instructs.

The API documentation cautions that JPEG source images containing a
large amount of extraneous metadata (EXIF, IPTC, ICC, etc.) cannot
reliably be transformed if TJFLAG_NOREALLOC is set and TJXOPT_COPYNONE
is not set.  Irrespective of the bug, there are still cases in which a
JPEG source image with a large amount of metadata can, when transformed,
exceed the worst-case transformed JPEG image size.  For instance, if you
try to losslessly crop a JPEG image with 3 kB of EXIF data to 16x16
pixels, then you are guaranteed to exceed the worst-case 16x16 JPEG
image size unless you discard the EXIF data.

Even without the bug, tjTransform() will still fail with "Buffer passed
to JPEG library is too small" when attempting to transform JPEG source
images that meet the aforementioned criteria.  The bug is that the
function segfaults rather than failing gracefully, but the chances of
that occurring in a real-world application are very slim.  Any
real-world application developers who attempted to transform arbitrary
JPEG source images with TJFLAG_NOREALLOC set would very quickly realize
that they cannot reliably do that without also setting TJXOPT_COPYNONE.
Thus, I posit that the actual risk posed by this bug is low.
Applications such as web browsers that are the most exposed to security
risks from arbitrary JPEG source images do not use the TurboJPEG
lossless transform feature.  (None of those applications even use the
TurboJPEG API, to the best of my knowledge, and the public libjpeg API
has no equivalent transform function.)  Our only command-line interface
to the tjTransform() function, TJBench, was not exposed to the bug
because it had a compatible bug whereby it allocated the JPEG
destination buffer to the same size that tjTransform() erroneously
expected.  The TurboJPEG Java API was also not exposed to the bug
because of a similar compatible bug in the
Java_org_libjpegturbo_turbojpeg_TJTransformer_transform() JNI function.
(This commit fixes both compatible bugs.)

In short, best practices for tjTransform() are to use TJFLAG_NOREALLOC
only with JPEG source images that are known to be free of metadata (such
as images generated by tjCompress*()) or to use TJXOPT_COPYNONE along
with TJFLAG_NOREALLOC.  Still, however, the function shouldn't segfault
as long as the calling program allocates the suggested amount of space
for the JPEG destination buffer.

Usability notes:
tjTransform() could hypothetically require dstSizes[i] to be set
regardless of whether TJFLAG_NOREALLOC is set, but there are usability
pitfalls either way.  The main pitfall I sought to avoid with
ff78e37595 was a calling program failing
to set dstSizes[i] at all, thus leaving its value undefined.  It could
be argued that requiring dstSizes[i] to be set in all cases is more
consistent, but it could also be argued that not requiring it to be set
when TJFLAG_NOREALLOC is set is more user-proof.  tjTransform() could
also hypothetically set TJXOPT_COPYNONE automatically when
TJFLAG_NOREALLOC is set, but that could lead to user confusion.
2023-06-28 11:37:53 -04:00

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/*
* Copyright (C)2009-2019, 2021-2023 D. R. Commander. All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* - Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* - Neither the name of the libjpeg-turbo Project nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS",
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef _MSC_VER
#define _CRT_SECURE_NO_DEPRECATE
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include <errno.h>
#include <limits.h>
#include <cdjpeg.h>
#include "./tjutil.h"
#include "./turbojpeg.h"
#define THROW(op, err) { \
printf("ERROR in line %d while %s:\n%s\n", __LINE__, op, err); \
retval = -1; goto bailout; \
}
#define THROW_UNIX(m) THROW(m, strerror(errno))
char tjErrorStr[JMSG_LENGTH_MAX] = "\0", tjErrorMsg[JMSG_LENGTH_MAX] = "\0";
int tjErrorLine = -1, tjErrorCode = -1;
#define THROW_TJG(m) { \
printf("ERROR in line %d while %s:\n%s\n", __LINE__, m, \
tjGetErrorStr2(NULL)); \
retval = -1; goto bailout; \
}
#define THROW_TJ(m) { \
int _tjErrorCode = tjGetErrorCode(handle); \
char *_tjErrorStr = tjGetErrorStr2(handle); \
\
if (!(flags & TJFLAG_STOPONWARNING) && _tjErrorCode == TJERR_WARNING) { \
if (strncmp(tjErrorStr, _tjErrorStr, JMSG_LENGTH_MAX) || \
strncmp(tjErrorMsg, m, JMSG_LENGTH_MAX) || \
tjErrorCode != _tjErrorCode || tjErrorLine != __LINE__) { \
strncpy(tjErrorStr, _tjErrorStr, JMSG_LENGTH_MAX); \
tjErrorStr[JMSG_LENGTH_MAX - 1] = '\0'; \
strncpy(tjErrorMsg, m, JMSG_LENGTH_MAX); \
tjErrorMsg[JMSG_LENGTH_MAX - 1] = '\0'; \
tjErrorCode = _tjErrorCode; \
tjErrorLine = __LINE__; \
printf("WARNING in line %d while %s:\n%s\n", __LINE__, m, _tjErrorStr); \
} \
} else { \
printf("%s in line %d while %s:\n%s\n", \
_tjErrorCode == TJERR_WARNING ? "WARNING" : "ERROR", __LINE__, m, \
_tjErrorStr); \
retval = -1; goto bailout; \
} \
}
int flags = TJFLAG_NOREALLOC, compOnly = 0, decompOnly = 0, doYUV = 0,
quiet = 0, doTile = 0, pf = TJPF_BGR, yuvAlign = 1, doWrite = 1;
char *ext = "ppm";
const char *pixFormatStr[TJ_NUMPF] = {
"RGB", "BGR", "RGBX", "BGRX", "XBGR", "XRGB", "GRAY", "", "", "", "", "CMYK"
};
const char *subNameLong[TJ_NUMSAMP] = {
"4:4:4", "4:2:2", "4:2:0", "GRAY", "4:4:0", "4:1:1"
};
const char *csName[TJ_NUMCS] = {
"RGB", "YCbCr", "GRAY", "CMYK", "YCCK"
};
const char *subName[TJ_NUMSAMP] = {
"444", "422", "420", "GRAY", "440", "411"
};
tjscalingfactor *scalingFactors = NULL, sf = { 1, 1 };
int nsf = 0, xformOp = TJXOP_NONE, xformOpt = 0;
int (*customFilter) (short *, tjregion, tjregion, int, int, tjtransform *);
double benchTime = 5.0, warmup = 1.0;
static char *formatName(int subsamp, int cs, char *buf)
{
if (cs == TJCS_YCbCr)
return (char *)subNameLong[subsamp];
else if (cs == TJCS_YCCK || cs == TJCS_CMYK) {
SNPRINTF(buf, 80, "%s %s", csName[cs], subNameLong[subsamp]);
return buf;
} else
return (char *)csName[cs];
}
static char *sigfig(double val, int figs, char *buf, int len)
{
char format[80];
int digitsAfterDecimal = figs - (int)ceil(log10(fabs(val)));
if (digitsAfterDecimal < 1)
SNPRINTF(format, 80, "%%.0f");
else
SNPRINTF(format, 80, "%%.%df", digitsAfterDecimal);
SNPRINTF(buf, len, format, val);
return buf;
}
/* Custom DCT filter which produces a negative of the image */
static int dummyDCTFilter(short *coeffs, tjregion arrayRegion,
tjregion planeRegion, int componentIndex,
int transformIndex, tjtransform *transform)
{
int i;
for (i = 0; i < arrayRegion.w * arrayRegion.h; i++)
coeffs[i] = -coeffs[i];
return 0;
}
/* Decompression test */
static int decomp(unsigned char *srcBuf, unsigned char **jpegBuf,
unsigned long *jpegSize, unsigned char *dstBuf, int w, int h,
int subsamp, int jpegQual, char *fileName, int tilew,
int tileh)
{
char tempStr[1024], sizeStr[24] = "\0", qualStr[13] = "\0", *ptr;
FILE *file = NULL;
tjhandle handle = NULL;
int row, col, iter = 0, dstBufAlloc = 0, retval = 0;
double elapsed, elapsedDecode;
int ps = tjPixelSize[pf];
int scaledw = TJSCALED(w, sf);
int scaledh = TJSCALED(h, sf);
int pitch = scaledw * ps;
int ntilesw = (w + tilew - 1) / tilew, ntilesh = (h + tileh - 1) / tileh;
unsigned char *dstPtr, *dstPtr2, *yuvBuf = NULL;
if (jpegQual > 0) {
SNPRINTF(qualStr, 13, "_Q%d", jpegQual);
qualStr[12] = 0;
}
if ((handle = tjInitDecompress()) == NULL)
THROW_TJ("executing tjInitDecompress()");
if (dstBuf == NULL) {
if ((unsigned long long)pitch * (unsigned long long)scaledh >
(unsigned long long)((size_t)-1))
THROW("allocating destination buffer", "Image is too large");
if ((dstBuf = (unsigned char *)malloc((size_t)pitch * scaledh)) == NULL)
THROW_UNIX("allocating destination buffer");
dstBufAlloc = 1;
}
/* Set the destination buffer to gray so we know whether the decompressor
attempted to write to it */
memset(dstBuf, 127, (size_t)pitch * scaledh);
if (doYUV) {
int width = doTile ? tilew : scaledw;
int height = doTile ? tileh : scaledh;
unsigned long yuvSize = tjBufSizeYUV2(width, yuvAlign, height, subsamp);
if (yuvSize == (unsigned long)-1)
THROW_TJ("allocating YUV buffer");
if ((yuvBuf = (unsigned char *)malloc(yuvSize)) == NULL)
THROW_UNIX("allocating YUV buffer");
memset(yuvBuf, 127, yuvSize);
}
/* Benchmark */
iter = -1;
elapsed = elapsedDecode = 0.;
while (1) {
int tile = 0;
double start = getTime();
for (row = 0, dstPtr = dstBuf; row < ntilesh;
row++, dstPtr += (size_t)pitch * tileh) {
for (col = 0, dstPtr2 = dstPtr; col < ntilesw;
col++, tile++, dstPtr2 += ps * tilew) {
int width = doTile ? min(tilew, w - col * tilew) : scaledw;
int height = doTile ? min(tileh, h - row * tileh) : scaledh;
if (doYUV) {
double startDecode;
if (tjDecompressToYUV2(handle, jpegBuf[tile], jpegSize[tile], yuvBuf,
width, yuvAlign, height, flags) == -1)
THROW_TJ("executing tjDecompressToYUV2()");
startDecode = getTime();
if (tjDecodeYUV(handle, yuvBuf, yuvAlign, subsamp, dstPtr2, width,
pitch, height, pf, flags) == -1)
THROW_TJ("executing tjDecodeYUV()");
if (iter >= 0) elapsedDecode += getTime() - startDecode;
} else if (tjDecompress2(handle, jpegBuf[tile], jpegSize[tile],
dstPtr2, width, pitch, height, pf,
flags) == -1)
THROW_TJ("executing tjDecompress2()");
}
}
elapsed += getTime() - start;
if (iter >= 0) {
iter++;
if (elapsed >= benchTime) break;
} else if (elapsed >= warmup) {
iter = 0;
elapsed = elapsedDecode = 0.;
}
}
if (doYUV) elapsed -= elapsedDecode;
if (tjDestroy(handle) == -1) THROW_TJ("executing tjDestroy()");
handle = NULL;
if (quiet) {
printf("%-6s%s",
sigfig((double)(w * h) / 1000000. * (double)iter / elapsed, 4,
tempStr, 1024),
quiet == 2 ? "\n" : " ");
if (doYUV)
printf("%s\n",
sigfig((double)(w * h) / 1000000. * (double)iter / elapsedDecode,
4, tempStr, 1024));
else if (quiet != 2) printf("\n");
} else {
printf("%s --> Frame rate: %f fps\n",
doYUV ? "Decomp to YUV" : "Decompress ", (double)iter / elapsed);
printf(" Throughput: %f Megapixels/sec\n",
(double)(w * h) / 1000000. * (double)iter / elapsed);
if (doYUV) {
printf("YUV Decode --> Frame rate: %f fps\n",
(double)iter / elapsedDecode);
printf(" Throughput: %f Megapixels/sec\n",
(double)(w * h) / 1000000. * (double)iter / elapsedDecode);
}
}
if (!doWrite) goto bailout;
if (sf.num != 1 || sf.denom != 1)
SNPRINTF(sizeStr, 24, "%d_%d", sf.num, sf.denom);
else if (tilew != w || tileh != h)
SNPRINTF(sizeStr, 24, "%dx%d", tilew, tileh);
else SNPRINTF(sizeStr, 24, "full");
if (decompOnly)
SNPRINTF(tempStr, 1024, "%s_%s.%s", fileName, sizeStr, ext);
else
SNPRINTF(tempStr, 1024, "%s_%s%s_%s.%s", fileName, subName[subsamp],
qualStr, sizeStr, ext);
if (tjSaveImage(tempStr, dstBuf, scaledw, 0, scaledh, pf, flags) == -1)
THROW_TJG("saving output image");
ptr = strrchr(tempStr, '.');
SNPRINTF(ptr, 1024 - (ptr - tempStr), "-err.%s", ext);
if (srcBuf && sf.num == 1 && sf.denom == 1) {
if (!quiet) printf("Compression error written to %s.\n", tempStr);
if (subsamp == TJSAMP_GRAY) {
unsigned long index, index2;
for (row = 0, index = 0; row < h; row++, index += pitch) {
for (col = 0, index2 = index; col < w; col++, index2 += ps) {
unsigned long rindex = index2 + tjRedOffset[pf];
unsigned long gindex = index2 + tjGreenOffset[pf];
unsigned long bindex = index2 + tjBlueOffset[pf];
int y = (int)((double)srcBuf[rindex] * 0.299 +
(double)srcBuf[gindex] * 0.587 +
(double)srcBuf[bindex] * 0.114 + 0.5);
if (y > 255) y = 255;
if (y < 0) y = 0;
dstBuf[rindex] = (unsigned char)abs(dstBuf[rindex] - y);
dstBuf[gindex] = (unsigned char)abs(dstBuf[gindex] - y);
dstBuf[bindex] = (unsigned char)abs(dstBuf[bindex] - y);
}
}
} else {
for (row = 0; row < h; row++)
for (col = 0; col < w * ps; col++)
dstBuf[pitch * row + col] =
(unsigned char)abs(dstBuf[pitch * row + col] -
srcBuf[pitch * row + col]);
}
if (tjSaveImage(tempStr, dstBuf, w, 0, h, pf, flags) == -1)
THROW_TJG("saving output image");
}
bailout:
if (file) fclose(file);
if (handle) tjDestroy(handle);
if (dstBufAlloc) free(dstBuf);
free(yuvBuf);
return retval;
}
static int fullTest(unsigned char *srcBuf, int w, int h, int subsamp,
int jpegQual, char *fileName)
{
char tempStr[1024], tempStr2[80];
FILE *file = NULL;
tjhandle handle = NULL;
unsigned char **jpegBuf = NULL, *yuvBuf = NULL, *tmpBuf = NULL, *srcPtr,
*srcPtr2;
double start, elapsed, elapsedEncode;
int totalJpegSize = 0, row, col, i, tilew = w, tileh = h, retval = 0;
int iter;
unsigned long *jpegSize = NULL, yuvSize = 0;
int ps = tjPixelSize[pf];
int ntilesw = 1, ntilesh = 1, pitch = w * ps;
const char *pfStr = pixFormatStr[pf];
if ((unsigned long long)pitch * (unsigned long long)h >
(unsigned long long)((size_t)-1))
THROW("allocating temporary image buffer", "Image is too large");
if ((tmpBuf = (unsigned char *)malloc((size_t)pitch * h)) == NULL)
THROW_UNIX("allocating temporary image buffer");
if (!quiet)
printf(">>>>> %s (%s) <--> JPEG %s Q%d <<<<<\n", pfStr,
(flags & TJFLAG_BOTTOMUP) ? "Bottom-up" : "Top-down",
subNameLong[subsamp], jpegQual);
for (tilew = doTile ? 8 : w, tileh = doTile ? 8 : h; ;
tilew *= 2, tileh *= 2) {
if (tilew > w) tilew = w;
if (tileh > h) tileh = h;
ntilesw = (w + tilew - 1) / tilew;
ntilesh = (h + tileh - 1) / tileh;
if ((jpegBuf = (unsigned char **)malloc(sizeof(unsigned char *) *
ntilesw * ntilesh)) == NULL)
THROW_UNIX("allocating JPEG tile array");
memset(jpegBuf, 0, sizeof(unsigned char *) * ntilesw * ntilesh);
if ((jpegSize = (unsigned long *)malloc(sizeof(unsigned long) *
ntilesw * ntilesh)) == NULL)
THROW_UNIX("allocating JPEG size array");
memset(jpegSize, 0, sizeof(unsigned long) * ntilesw * ntilesh);
if ((flags & TJFLAG_NOREALLOC) != 0)
for (i = 0; i < ntilesw * ntilesh; i++) {
if (tjBufSize(tilew, tileh, subsamp) > (unsigned long)INT_MAX)
THROW("getting buffer size", "Image is too large");
if ((jpegBuf[i] = (unsigned char *)
tjAlloc(tjBufSize(tilew, tileh, subsamp))) == NULL)
THROW_UNIX("allocating JPEG tiles");
}
/* Compression test */
if (quiet == 1)
printf("%-4s (%s) %-5s %-3d ", pfStr,
(flags & TJFLAG_BOTTOMUP) ? "BU" : "TD", subNameLong[subsamp],
jpegQual);
for (i = 0; i < h; i++)
memcpy(&tmpBuf[pitch * i], &srcBuf[w * ps * i], w * ps);
if ((handle = tjInitCompress()) == NULL)
THROW_TJ("executing tjInitCompress()");
if (doYUV) {
yuvSize = tjBufSizeYUV2(tilew, yuvAlign, tileh, subsamp);
if (yuvSize == (unsigned long)-1)
THROW_TJ("allocating YUV buffer");
if ((yuvBuf = (unsigned char *)malloc(yuvSize)) == NULL)
THROW_UNIX("allocating YUV buffer");
memset(yuvBuf, 127, yuvSize);
}
/* Benchmark */
iter = -1;
elapsed = elapsedEncode = 0.;
while (1) {
int tile = 0;
totalJpegSize = 0;
start = getTime();
for (row = 0, srcPtr = srcBuf; row < ntilesh;
row++, srcPtr += pitch * tileh) {
for (col = 0, srcPtr2 = srcPtr; col < ntilesw;
col++, tile++, srcPtr2 += ps * tilew) {
int width = min(tilew, w - col * tilew);
int height = min(tileh, h - row * tileh);
if (doYUV) {
double startEncode = getTime();
if (tjEncodeYUV3(handle, srcPtr2, width, pitch, height, pf, yuvBuf,
yuvAlign, subsamp, flags) == -1)
THROW_TJ("executing tjEncodeYUV3()");
if (iter >= 0) elapsedEncode += getTime() - startEncode;
if (tjCompressFromYUV(handle, yuvBuf, width, yuvAlign, height,
subsamp, &jpegBuf[tile], &jpegSize[tile],
jpegQual, flags) == -1)
THROW_TJ("executing tjCompressFromYUV()");
} else {
if (tjCompress2(handle, srcPtr2, width, pitch, height, pf,
&jpegBuf[tile], &jpegSize[tile], subsamp, jpegQual,
flags) == -1)
THROW_TJ("executing tjCompress2()");
}
totalJpegSize += jpegSize[tile];
}
}
elapsed += getTime() - start;
if (iter >= 0) {
iter++;
if (elapsed >= benchTime) break;
} else if (elapsed >= warmup) {
iter = 0;
elapsed = elapsedEncode = 0.;
}
}
if (doYUV) elapsed -= elapsedEncode;
if (tjDestroy(handle) == -1) THROW_TJ("executing tjDestroy()");
handle = NULL;
if (quiet == 1) printf("%-5d %-5d ", tilew, tileh);
if (quiet) {
if (doYUV)
printf("%-6s%s",
sigfig((double)(w * h) / 1000000. *
(double)iter / elapsedEncode, 4, tempStr, 1024),
quiet == 2 ? "\n" : " ");
printf("%-6s%s",
sigfig((double)(w * h) / 1000000. * (double)iter / elapsed, 4,
tempStr, 1024),
quiet == 2 ? "\n" : " ");
printf("%-6s%s",
sigfig((double)(w * h * ps) / (double)totalJpegSize, 4, tempStr2,
80),
quiet == 2 ? "\n" : " ");
} else {
printf("\n%s size: %d x %d\n", doTile ? "Tile" : "Image", tilew, tileh);
if (doYUV) {
printf("Encode YUV --> Frame rate: %f fps\n",
(double)iter / elapsedEncode);
printf(" Output image size: %lu bytes\n", yuvSize);
printf(" Compression ratio: %f:1\n",
(double)(w * h * ps) / (double)yuvSize);
printf(" Throughput: %f Megapixels/sec\n",
(double)(w * h) / 1000000. * (double)iter / elapsedEncode);
printf(" Output bit stream: %f Megabits/sec\n",
(double)yuvSize * 8. / 1000000. * (double)iter / elapsedEncode);
}
printf("%s --> Frame rate: %f fps\n",
doYUV ? "Comp from YUV" : "Compress ",
(double)iter / elapsed);
printf(" Output image size: %d bytes\n",
totalJpegSize);
printf(" Compression ratio: %f:1\n",
(double)(w * h * ps) / (double)totalJpegSize);
printf(" Throughput: %f Megapixels/sec\n",
(double)(w * h) / 1000000. * (double)iter / elapsed);
printf(" Output bit stream: %f Megabits/sec\n",
(double)totalJpegSize * 8. / 1000000. * (double)iter / elapsed);
}
if (tilew == w && tileh == h && doWrite) {
SNPRINTF(tempStr, 1024, "%s_%s_Q%d.jpg", fileName, subName[subsamp],
jpegQual);
if ((file = fopen(tempStr, "wb")) == NULL)
THROW_UNIX("opening reference image");
if (fwrite(jpegBuf[0], jpegSize[0], 1, file) != 1)
THROW_UNIX("writing reference image");
fclose(file); file = NULL;
if (!quiet) printf("Reference image written to %s\n", tempStr);
}
/* Decompression test */
if (!compOnly) {
if (decomp(srcBuf, jpegBuf, jpegSize, tmpBuf, w, h, subsamp, jpegQual,
fileName, tilew, tileh) == -1)
goto bailout;
} else if (quiet == 1) printf("N/A\n");
for (i = 0; i < ntilesw * ntilesh; i++) {
tjFree(jpegBuf[i]);
jpegBuf[i] = NULL;
}
free(jpegBuf); jpegBuf = NULL;
free(jpegSize); jpegSize = NULL;
if (doYUV) {
free(yuvBuf); yuvBuf = NULL;
}
if (tilew == w && tileh == h) break;
}
bailout:
if (file) fclose(file);
if (jpegBuf) {
for (i = 0; i < ntilesw * ntilesh; i++)
tjFree(jpegBuf[i]);
}
free(jpegBuf);
free(yuvBuf);
free(jpegSize);
free(tmpBuf);
if (handle) tjDestroy(handle);
return retval;
}
static int decompTest(char *fileName)
{
FILE *file = NULL;
tjhandle handle = NULL;
unsigned char **jpegBuf = NULL, *srcBuf = NULL;
unsigned long *jpegSize = NULL, srcSize, totalJpegSize;
tjtransform *t = NULL;
double start, elapsed;
int ps = tjPixelSize[pf], tile, row, col, i, iter, retval = 0, decompsrc = 0;
char *temp = NULL, tempStr[80], tempStr2[80];
/* Original image */
int w = 0, h = 0, minTile, tilew, tileh, ntilesw = 1, ntilesh = 1,
subsamp = -1, cs = -1;
/* Transformed image */
int tw, th, ttilew, ttileh, tntilesw, tntilesh, tsubsamp;
if ((file = fopen(fileName, "rb")) == NULL)
THROW_UNIX("opening file");
if (fseek(file, 0, SEEK_END) < 0 ||
(srcSize = ftell(file)) == (unsigned long)-1)
THROW_UNIX("determining file size");
if ((srcBuf = (unsigned char *)malloc(srcSize)) == NULL)
THROW_UNIX("allocating memory");
if (fseek(file, 0, SEEK_SET) < 0)
THROW_UNIX("setting file position");
if (fread(srcBuf, srcSize, 1, file) < 1)
THROW_UNIX("reading JPEG data");
fclose(file); file = NULL;
temp = strrchr(fileName, '.');
if (temp != NULL) *temp = '\0';
if ((handle = tjInitTransform()) == NULL)
THROW_TJ("executing tjInitTransform()");
if (tjDecompressHeader3(handle, srcBuf, srcSize, &w, &h, &subsamp,
&cs) == -1)
THROW_TJ("executing tjDecompressHeader3()");
if (w < 1 || h < 1)
THROW("reading JPEG header", "Invalid image dimensions");
if (cs == TJCS_YCCK || cs == TJCS_CMYK) {
pf = TJPF_CMYK; ps = tjPixelSize[pf];
}
if (quiet == 1) {
printf("All performance values in Mpixels/sec\n\n");
printf("Pixel JPEG JPEG %s %s Xform Comp Decomp ",
doTile ? "Tile " : "Image", doTile ? "Tile " : "Image");
if (doYUV) printf("Decode");
printf("\n");
printf("Format CS Subsamp Width Height Perf Ratio Perf ");
if (doYUV) printf("Perf");
printf("\n\n");
} else if (!quiet)
printf(">>>>> JPEG %s --> %s (%s) <<<<<\n",
formatName(subsamp, cs, tempStr), pixFormatStr[pf],
(flags & TJFLAG_BOTTOMUP) ? "Bottom-up" : "Top-down");
minTile = max(tjMCUWidth[subsamp], tjMCUHeight[subsamp]);
for (tilew = doTile ? minTile : w, tileh = doTile ? minTile : h; ;
tilew *= 2, tileh *= 2) {
if (tilew > w) tilew = w;
if (tileh > h) tileh = h;
ntilesw = (w + tilew - 1) / tilew;
ntilesh = (h + tileh - 1) / tileh;
if ((jpegBuf = (unsigned char **)malloc(sizeof(unsigned char *) *
ntilesw * ntilesh)) == NULL)
THROW_UNIX("allocating JPEG tile array");
memset(jpegBuf, 0, sizeof(unsigned char *) * ntilesw * ntilesh);
if ((jpegSize = (unsigned long *)malloc(sizeof(unsigned long) *
ntilesw * ntilesh)) == NULL)
THROW_UNIX("allocating JPEG size array");
memset(jpegSize, 0, sizeof(unsigned long) * ntilesw * ntilesh);
if ((flags & TJFLAG_NOREALLOC) != 0 &&
(doTile || xformOp != TJXOP_NONE || xformOpt != 0 || customFilter))
for (i = 0; i < ntilesw * ntilesh; i++) {
unsigned long jpegBufSize;
if (xformOp == TJXOP_TRANSPOSE || xformOp == TJXOP_TRANSVERSE ||
xformOp == TJXOP_ROT90 || xformOp == TJXOP_ROT270)
jpegBufSize = tjBufSize(tileh, tilew, subsamp);
else
jpegBufSize = tjBufSize(tilew, tileh, subsamp);
if (jpegBufSize > (unsigned long)INT_MAX)
THROW("getting buffer size", "Image is too large");
if ((jpegBuf[i] = (unsigned char *)tjAlloc(jpegBufSize)) == NULL)
THROW_UNIX("allocating JPEG tiles");
}
tw = w; th = h; ttilew = tilew; ttileh = tileh;
if (!quiet) {
printf("\n%s size: %d x %d", doTile ? "Tile" : "Image", ttilew, ttileh);
if (sf.num != 1 || sf.denom != 1)
printf(" --> %d x %d", TJSCALED(tw, sf), TJSCALED(th, sf));
printf("\n");
} else if (quiet == 1) {
printf("%-4s (%s) %-5s %-5s ", pixFormatStr[pf],
(flags & TJFLAG_BOTTOMUP) ? "BU" : "TD", csName[cs],
subNameLong[subsamp]);
printf("%-5d %-5d ", tilew, tileh);
}
tsubsamp = subsamp;
if (doTile || xformOp != TJXOP_NONE || xformOpt != 0 || customFilter) {
if ((t = (tjtransform *)malloc(sizeof(tjtransform) * ntilesw *
ntilesh)) == NULL)
THROW_UNIX("allocating image transform array");
if (xformOp == TJXOP_TRANSPOSE || xformOp == TJXOP_TRANSVERSE ||
xformOp == TJXOP_ROT90 || xformOp == TJXOP_ROT270) {
tw = h; th = w; ttilew = tileh; ttileh = tilew;
}
if (xformOpt & TJXOPT_GRAY) tsubsamp = TJSAMP_GRAY;
if (xformOp == TJXOP_HFLIP || xformOp == TJXOP_ROT180)
tw = tw - (tw % tjMCUWidth[tsubsamp]);
if (xformOp == TJXOP_VFLIP || xformOp == TJXOP_ROT180)
th = th - (th % tjMCUHeight[tsubsamp]);
if (xformOp == TJXOP_TRANSVERSE || xformOp == TJXOP_ROT90)
tw = tw - (tw % tjMCUHeight[tsubsamp]);
if (xformOp == TJXOP_TRANSVERSE || xformOp == TJXOP_ROT270)
th = th - (th % tjMCUWidth[tsubsamp]);
tntilesw = (tw + ttilew - 1) / ttilew;
tntilesh = (th + ttileh - 1) / ttileh;
if (xformOp == TJXOP_TRANSPOSE || xformOp == TJXOP_TRANSVERSE ||
xformOp == TJXOP_ROT90 || xformOp == TJXOP_ROT270) {
if (tsubsamp == TJSAMP_422) tsubsamp = TJSAMP_440;
else if (tsubsamp == TJSAMP_440) tsubsamp = TJSAMP_422;
}
for (row = 0, tile = 0; row < tntilesh; row++) {
for (col = 0; col < tntilesw; col++, tile++) {
t[tile].r.w = min(ttilew, tw - col * ttilew);
t[tile].r.h = min(ttileh, th - row * ttileh);
t[tile].r.x = col * ttilew;
t[tile].r.y = row * ttileh;
t[tile].op = xformOp;
t[tile].options = xformOpt | TJXOPT_TRIM;
t[tile].customFilter = customFilter;
if (t[tile].options & TJXOPT_NOOUTPUT && jpegBuf[tile]) {
tjFree(jpegBuf[tile]); jpegBuf[tile] = NULL;
}
}
}
iter = -1;
elapsed = 0.;
while (1) {
start = getTime();
if (tjTransform(handle, srcBuf, srcSize, tntilesw * tntilesh, jpegBuf,
jpegSize, t, flags) == -1)
THROW_TJ("executing tjTransform()");
elapsed += getTime() - start;
if (iter >= 0) {
iter++;
if (elapsed >= benchTime) break;
} else if (elapsed >= warmup) {
iter = 0;
elapsed = 0.;
}
}
free(t); t = NULL;
for (tile = 0, totalJpegSize = 0; tile < tntilesw * tntilesh; tile++)
totalJpegSize += jpegSize[tile];
if (quiet) {
printf("%-6s%s%-6s%s",
sigfig((double)(w * h) / 1000000. / elapsed, 4, tempStr, 80),
quiet == 2 ? "\n" : " ",
sigfig((double)(w * h * ps) / (double)totalJpegSize, 4,
tempStr2, 80),
quiet == 2 ? "\n" : " ");
} else {
printf("Transform --> Frame rate: %f fps\n",
1.0 / elapsed);
printf(" Output image size: %lu bytes\n",
totalJpegSize);
printf(" Compression ratio: %f:1\n",
(double)(w * h * ps) / (double)totalJpegSize);
printf(" Throughput: %f Megapixels/sec\n",
(double)(w * h) / 1000000. / elapsed);
printf(" Output bit stream: %f Megabits/sec\n",
(double)totalJpegSize * 8. / 1000000. / elapsed);
}
} else {
if (quiet == 1) printf("N/A N/A ");
tjFree(jpegBuf[0]);
jpegBuf[0] = NULL;
decompsrc = 1;
}
if (w == tilew) ttilew = tw;
if (h == tileh) ttileh = th;
if (!(xformOpt & TJXOPT_NOOUTPUT)) {
if (decomp(NULL, decompsrc ? &srcBuf : jpegBuf,
decompsrc ? &srcSize : jpegSize, NULL, tw, th, tsubsamp, 0,
fileName, ttilew, ttileh) == -1)
goto bailout;
} else if (quiet == 1) printf("N/A\n");
for (i = 0; i < ntilesw * ntilesh; i++) {
tjFree(jpegBuf[i]);
jpegBuf[i] = NULL;
}
free(jpegBuf); jpegBuf = NULL;
free(jpegSize); jpegSize = NULL;
if (tilew == w && tileh == h) break;
}
bailout:
if (file) fclose(file);
if (jpegBuf) {
for (i = 0; i < ntilesw * ntilesh; i++)
tjFree(jpegBuf[i]);
}
free(jpegBuf);
free(jpegSize);
free(srcBuf);
free(t);
if (handle) { tjDestroy(handle); handle = NULL; }
return retval;
}
static void usage(char *progName)
{
int i;
printf("USAGE: %s\n", progName);
printf(" <Inputimage (BMP|PPM)> <Quality> [options]\n\n");
printf(" %s\n", progName);
printf(" <Inputimage (JPG)> [options]\n\n");
printf("Options:\n\n");
printf("-alloc = Dynamically allocate JPEG buffers\n");
printf("-bmp = Use Windows Bitmap format for output images [default = PPM]\n");
printf("-bottomup = Use bottom-up row order for packed-pixel source/destination buffers\n");
printf("-tile = Compress/transform the input image into separate JPEG tiles of varying\n");
printf(" sizes (useful for measuring JPEG overhead)\n");
printf("-rgb, -bgr, -rgbx, -bgrx, -xbgr, -xrgb =\n");
printf(" Use the specified pixel format for packed-pixel source/destination buffers\n");
printf(" [default = BGR]\n");
printf("-cmyk = Indirectly test YCCK JPEG compression/decompression\n");
printf(" (use the CMYK pixel format for packed-pixel source/destination buffers)\n");
printf("-fastupsample = Use the fastest chrominance upsampling algorithm available\n");
printf("-fastdct = Use the fastest DCT/IDCT algorithm available\n");
printf("-accuratedct = Use the most accurate DCT/IDCT algorithm available\n");
printf("-progressive = Use progressive entropy coding in JPEG images generated by\n");
printf(" compression and transform operations\n");
printf("-subsamp <s> = When compressing, use the specified level of chrominance\n");
printf(" subsampling (<s> = 444, 422, 440, 420, 411, or GRAY) [default = test\n");
printf(" Grayscale, 4:2:0, 4:2:2, and 4:4:4 in sequence]\n");
printf("-quiet = Output results in tabular rather than verbose format\n");
printf("-yuv = Compress from/decompress to intermediate planar YUV images\n");
printf("-yuvpad <p> = The number of bytes by which each row in each plane of an\n");
printf(" intermediate YUV image is evenly divisible (must be a power of 2)\n");
printf(" [default = 1]\n");
printf("-scale M/N = When decompressing, scale the width/height of the JPEG image by a\n");
printf(" factor of M/N (M/N = ");
for (i = 0; i < nsf; i++) {
printf("%d/%d", scalingFactors[i].num, scalingFactors[i].denom);
if (nsf == 2 && i != nsf - 1) printf(" or ");
else if (nsf > 2) {
if (i != nsf - 1) printf(", ");
if (i == nsf - 2) printf("or ");
}
if (i % 8 == 0 && i != 0) printf("\n ");
}
printf(")\n");
printf("-hflip, -vflip, -transpose, -transverse, -rot90, -rot180, -rot270 =\n");
printf(" Perform the specified lossless transform operation on the input image\n");
printf(" prior to decompression (these operations are mutually exclusive)\n");
printf("-grayscale = Transform the input image into a grayscale JPEG image prior to\n");
printf(" decompression (can be combined with the other transform operations above)\n");
printf("-copynone = Do not copy any extra markers (including EXIF and ICC profile data)\n");
printf(" when transforming the input image\n");
printf("-benchtime <t> = Run each benchmark for at least <t> seconds [default = 5.0]\n");
printf("-warmup <t> = Run each benchmark for <t> seconds [default = 1.0] prior to\n");
printf(" starting the timer, in order to prime the caches and thus improve the\n");
printf(" consistency of the benchmark results\n");
printf("-componly = Stop after running compression tests. Do not test decompression.\n");
printf("-nowrite = Do not write reference or output images (improves consistency of\n");
printf(" benchmark results)\n");
printf("-limitscans = Refuse to decompress or transform progressive JPEG images that\n");
printf(" have an unreasonably large number of scans\n");
printf("-stoponwarning = Immediately discontinue the current\n");
printf(" compression/decompression/transform operation if a warning (non-fatal\n");
printf(" error) occurs\n\n");
printf("NOTE: If the quality is specified as a range (e.g. 90-100), a separate\n");
printf("test will be performed for all quality values in the range.\n\n");
exit(1);
}
int main(int argc, char *argv[])
{
unsigned char *srcBuf = NULL;
int w = 0, h = 0, i, j, minQual = -1, maxQual = -1;
char *temp;
int minArg = 2, retval = 0, subsamp = -1;
if ((scalingFactors = tjGetScalingFactors(&nsf)) == NULL || nsf == 0)
THROW("executing tjGetScalingFactors()", tjGetErrorStr());
if (argc < minArg) usage(argv[0]);
temp = strrchr(argv[1], '.');
if (temp != NULL) {
if (!strcasecmp(temp, ".bmp")) ext = "bmp";
if (!strcasecmp(temp, ".jpg") || !strcasecmp(temp, ".jpeg"))
decompOnly = 1;
}
printf("\n");
if (!decompOnly) {
minArg = 3;
if (argc < minArg) usage(argv[0]);
if ((minQual = atoi(argv[2])) < 1 || minQual > 100) {
puts("ERROR: Quality must be between 1 and 100.");
exit(1);
}
if ((temp = strchr(argv[2], '-')) != NULL && strlen(temp) > 1 &&
sscanf(&temp[1], "%d", &maxQual) == 1 && maxQual > minQual &&
maxQual >= 1 && maxQual <= 100) {}
else maxQual = minQual;
}
if (argc > minArg) {
for (i = minArg; i < argc; i++) {
if (!strcasecmp(argv[i], "-tile")) {
doTile = 1; xformOpt |= TJXOPT_CROP;
} else if (!strcasecmp(argv[i], "-fastupsample")) {
printf("Using fastest upsampling algorithm\n\n");
flags |= TJFLAG_FASTUPSAMPLE;
} else if (!strcasecmp(argv[i], "-fastdct")) {
printf("Using fastest DCT/IDCT algorithm\n\n");
flags |= TJFLAG_FASTDCT;
} else if (!strcasecmp(argv[i], "-accuratedct")) {
printf("Using most accurate DCT/IDCT algorithm\n\n");
flags |= TJFLAG_ACCURATEDCT;
} else if (!strcasecmp(argv[i], "-progressive")) {
printf("Using progressive entropy coding\n\n");
flags |= TJFLAG_PROGRESSIVE;
xformOpt |= TJXOPT_PROGRESSIVE;
} else if (!strcasecmp(argv[i], "-rgb"))
pf = TJPF_RGB;
else if (!strcasecmp(argv[i], "-rgbx"))
pf = TJPF_RGBX;
else if (!strcasecmp(argv[i], "-bgr"))
pf = TJPF_BGR;
else if (!strcasecmp(argv[i], "-bgrx"))
pf = TJPF_BGRX;
else if (!strcasecmp(argv[i], "-xbgr"))
pf = TJPF_XBGR;
else if (!strcasecmp(argv[i], "-xrgb"))
pf = TJPF_XRGB;
else if (!strcasecmp(argv[i], "-cmyk"))
pf = TJPF_CMYK;
else if (!strcasecmp(argv[i], "-bottomup"))
flags |= TJFLAG_BOTTOMUP;
else if (!strcasecmp(argv[i], "-quiet"))
quiet = 1;
else if (!strcasecmp(argv[i], "-qq"))
quiet = 2;
else if (!strcasecmp(argv[i], "-scale") && i < argc - 1) {
int temp1 = 0, temp2 = 0, match = 0;
if (sscanf(argv[++i], "%d/%d", &temp1, &temp2) == 2) {
for (j = 0; j < nsf; j++) {
if ((double)temp1 / (double)temp2 ==
(double)scalingFactors[j].num /
(double)scalingFactors[j].denom) {
sf = scalingFactors[j];
match = 1; break;
}
}
if (!match) usage(argv[0]);
} else usage(argv[0]);
} else if (!strcasecmp(argv[i], "-hflip"))
xformOp = TJXOP_HFLIP;
else if (!strcasecmp(argv[i], "-vflip"))
xformOp = TJXOP_VFLIP;
else if (!strcasecmp(argv[i], "-transpose"))
xformOp = TJXOP_TRANSPOSE;
else if (!strcasecmp(argv[i], "-transverse"))
xformOp = TJXOP_TRANSVERSE;
else if (!strcasecmp(argv[i], "-rot90"))
xformOp = TJXOP_ROT90;
else if (!strcasecmp(argv[i], "-rot180"))
xformOp = TJXOP_ROT180;
else if (!strcasecmp(argv[i], "-rot270"))
xformOp = TJXOP_ROT270;
else if (!strcasecmp(argv[i], "-grayscale"))
xformOpt |= TJXOPT_GRAY;
else if (!strcasecmp(argv[i], "-custom"))
customFilter = dummyDCTFilter;
else if (!strcasecmp(argv[i], "-nooutput"))
xformOpt |= TJXOPT_NOOUTPUT;
else if (!strcasecmp(argv[i], "-copynone"))
xformOpt |= TJXOPT_COPYNONE;
else if (!strcasecmp(argv[i], "-benchtime") && i < argc - 1) {
double tempd = atof(argv[++i]);
if (tempd > 0.0) benchTime = tempd;
else usage(argv[0]);
} else if (!strcasecmp(argv[i], "-warmup") && i < argc - 1) {
double tempd = atof(argv[++i]);
if (tempd >= 0.0) warmup = tempd;
else usage(argv[0]);
printf("Warmup time = %.1f seconds\n\n", warmup);
} else if (!strcasecmp(argv[i], "-alloc"))
flags &= (~TJFLAG_NOREALLOC);
else if (!strcasecmp(argv[i], "-bmp"))
ext = "bmp";
else if (!strcasecmp(argv[i], "-yuv")) {
printf("Testing planar YUV encoding/decoding\n\n");
doYUV = 1;
} else if (!strcasecmp(argv[i], "-yuvpad") && i < argc - 1) {
int tempi = atoi(argv[++i]);
if (tempi >= 1 && (tempi & (tempi - 1)) == 0) yuvAlign = tempi;
else usage(argv[0]);
} else if (!strcasecmp(argv[i], "-subsamp") && i < argc - 1) {
i++;
if (toupper(argv[i][0]) == 'G') subsamp = TJSAMP_GRAY;
else {
int tempi = atoi(argv[i]);
switch (tempi) {
case 444: subsamp = TJSAMP_444; break;
case 422: subsamp = TJSAMP_422; break;
case 440: subsamp = TJSAMP_440; break;
case 420: subsamp = TJSAMP_420; break;
case 411: subsamp = TJSAMP_411; break;
default: usage(argv[0]);
}
}
} else if (!strcasecmp(argv[i], "-componly"))
compOnly = 1;
else if (!strcasecmp(argv[i], "-nowrite"))
doWrite = 0;
else if (!strcasecmp(argv[i], "-limitscans"))
flags |= TJFLAG_LIMITSCANS;
else if (!strcasecmp(argv[i], "-stoponwarning"))
flags |= TJFLAG_STOPONWARNING;
else usage(argv[0]);
}
}
if ((sf.num != 1 || sf.denom != 1) && doTile) {
printf("Disabling tiled compression/decompression tests, because those tests do not\n");
printf("work when scaled decompression is enabled.\n\n");
doTile = 0; xformOpt &= (~TJXOPT_CROP);
}
if ((flags & TJFLAG_NOREALLOC) == 0 && doTile) {
printf("Disabling tiled compression/decompression tests, because those tests do not\n");
printf("work when dynamic JPEG buffer allocation is enabled.\n\n");
doTile = 0; xformOpt &= (~TJXOPT_CROP);
}
if (!decompOnly) {
if ((srcBuf = tjLoadImage(argv[1], &w, 1, &h, &pf, flags)) == NULL)
THROW_TJG("loading input image");
temp = strrchr(argv[1], '.');
if (temp != NULL) *temp = '\0';
}
if (quiet == 1 && !decompOnly) {
printf("All performance values in Mpixels/sec\n\n");
printf("Pixel JPEG JPEG %s %s ",
doTile ? "Tile " : "Image", doTile ? "Tile " : "Image");
if (doYUV) printf("Encode ");
printf("Comp Comp Decomp ");
if (doYUV) printf("Decode");
printf("\n");
printf("Format Subsamp Qual Width Height ");
if (doYUV) printf("Perf ");
printf("Perf Ratio Perf ");
if (doYUV) printf("Perf");
printf("\n\n");
}
if (decompOnly) {
decompTest(argv[1]);
printf("\n");
goto bailout;
}
if (subsamp >= 0 && subsamp < TJ_NUMSAMP) {
for (i = maxQual; i >= minQual; i--)
fullTest(srcBuf, w, h, subsamp, i, argv[1]);
printf("\n");
} else {
if (pf != TJPF_CMYK) {
for (i = maxQual; i >= minQual; i--)
fullTest(srcBuf, w, h, TJSAMP_GRAY, i, argv[1]);
printf("\n");
}
for (i = maxQual; i >= minQual; i--)
fullTest(srcBuf, w, h, TJSAMP_420, i, argv[1]);
printf("\n");
for (i = maxQual; i >= minQual; i--)
fullTest(srcBuf, w, h, TJSAMP_422, i, argv[1]);
printf("\n");
for (i = maxQual; i >= minQual; i--)
fullTest(srcBuf, w, h, TJSAMP_444, i, argv[1]);
printf("\n");
}
bailout:
tjFree(srcBuf);
return retval;
}
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