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Test scaled decompression feature in TurboJPEG 

git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@372 632fc199-4ca6-4c93-a231-07263d6284db
This commit is contained in:
DRC 2011-02-16 02:08:17 +00:00
Родитель bc507f672d
Коммит dae3ee9f67
1 изменённых файлов: 47 добавлений и 29 удалений
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76
jpgtest.c
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@ -33,7 +33,8 @@
enum {YUVENCODE=1, YUVDECODE};
int forcemmx=0, forcesse=0, forcesse2=0, forcesse3=0, fastupsample=0,
decomponly=0, yuv=0, quiet=0, dotile=0, pf=BMP_BGR, bu=0, useppm=0;
decomponly=0, yuv=0, quiet=0, dotile=0, pf=BMP_BGR, bu=0, useppm=0,
scalefactor=1;
const int _ps[BMPPIXELFORMATS]={3, 4, 3, 4, 4, 4};
const int _flags[BMPPIXELFORMATS]={0, 0, TJ_BGR, TJ_BGR,
TJ_BGR|TJ_ALPHAFIRST, TJ_ALPHAFIRST};
@ -77,12 +78,13 @@ int decomptest(unsigned char *srcbuf, unsigned char **jpegbuf,
int i, j, ITER, rgbbufalloc=0;
double start, elapsed;
int ps=_ps[pf];
int pitch=w*ps;
int hsf=_hsf[jpegsub], vsf=_vsf[jpegsub];
int pw=PAD(w, hsf), ph=PAD(h, vsf);
int cw=pw/hsf, ch=ph/vsf;
int ypitch=PAD(pw, 4), uvpitch=PAD(cw, 4);
int yuvsize=ypitch*ph + (jpegsub==TJ_GRAYSCALE? 0:uvpitch*ch*2);
int _w=(w+scalefactor-1)/scalefactor, _h=(h+scalefactor-1)/scalefactor;
int pitch=_w*ps;
if(qual>0)
{
@ -98,11 +100,11 @@ int decomptest(unsigned char *srcbuf, unsigned char **jpegbuf,
if(rgbbuf==NULL)
{
if((rgbbuf=(unsigned char *)malloc(max(yuvsize, pitch*h))) == NULL)
if((rgbbuf=(unsigned char *)malloc(max(yuvsize, pitch*_h))) == NULL)
_throwunix("allocating image buffer");
rgbbufalloc=1;
}
memset(rgbbuf, 127, max(yuvsize, pitch*h)); // Grey image means decompressor did nothing
memset(rgbbuf, 127, max(yuvsize, pitch*_h)); // Grey image means decompressor did nothing
if(tjDecompress(hnd, jpegbuf[0], comptilesize[0], rgbbuf, tilesizex, pitch,
tilesizey, ps, flags)==-1)
@ -117,9 +119,10 @@ int decomptest(unsigned char *srcbuf, unsigned char **jpegbuf,
for(j=0; j<w; j+=tilesizex)
{
int tempw=min(tilesizex, w-j), temph=min(tilesizey, h-i);
if(tjDecompress(hnd, jpegbuf[tilen], comptilesize[tilen],
&rgbbuf[pitch*i+ps*j], tempw, pitch, temph, ps, flags)==-1)
_throwtj("executing tjDecompress()");
if(tjDecompress2(hnd, jpegbuf[tilen], comptilesize[tilen],
&rgbbuf[pitch*i+ps*j], pitch, ps, 1, (flags&TJ_YUV)? 1:scalefactor,
flags)==-1)
_throwtj("executing tjDecompress2()");
tilen++;
}
}
@ -159,10 +162,10 @@ int decomptest(unsigned char *srcbuf, unsigned char **jpegbuf,
}
else sprintf(tempstr, "%s_%s%s_%dx%d.%s", filename, _subnames[jpegsub],
qualstr, tilesizex, tilesizey, useppm?"ppm":"bmp");
if(savebmp(tempstr, rgbbuf, w, h, pf, pitch, bu)==-1)
if(savebmp(tempstr, rgbbuf, _w, _h, pf, pitch, bu)==-1)
_throwbmp("saving bitmap");
sprintf(strrchr(tempstr, '.'), "-err.%s", useppm?"ppm":"bmp");
if(srcbuf)
if(srcbuf && scalefactor==1)
{
if(!quiet)
printf("Computing compression error and saving to %s.\n", tempstr);
@ -422,26 +425,26 @@ void dodecomptest(char *filename)
void usage(char *progname)
{
printf("USAGE: %s <Inputfile (BMP|PPM))> <%% Quality>\n", progname);
printf(" %s <Inputfile (JPG))>\n\n", progname);
printf(" [-tile]\n");
printf(" Test performance of the codec when the image is encoded\n");
printf(" as separate tiles of varying sizes.\n\n");
printf(" [-forcemmx] [-forcesse] [-forcesse2] [-forcesse3]\n");
printf(" Force MMX, SSE, or SSE2 code paths in Intel codec\n\n");
printf(" [-rgb | -bgr | -rgba | -bgra | -abgr | -argb]\n");
printf(" Test the specified color conversion path in the codec (default: BGR)\n\n");
printf(" [-fastupsample]\n");
printf(" Use fast, inaccurate upsampling code to perform 4:2:2 and 4:2:0\n");
printf(" YUV decoding in libjpeg decompressor\n\n");
printf(" [-quiet]\n");
printf(" Output in tabular rather than verbose format\n\n");
printf(" [-yuvencode]\n");
printf(" Encode RGB input as planar YUV rather than compressing as JPEG\n\n");
printf(" [-yuvdecode]\n");
printf(" Decode JPEG image to planar YUV rather than RGB\n\n");
printf(" NOTE: If the quality is specified as a range, i.e. 90-100, a separate\n");
printf(" test will be performed for all quality values in the range.\n");
printf("USAGE: %s\n", progname);
printf(" <Inputfile (BMP|PPM)> <%% Quality> [options]\n\n");
printf(" %s\n", progname);
printf(" <Inputfile (JPG)> [options]\n\n");
printf("Options:\n\n");
printf("-tile = Test performance of the codec when the image is encoded as separate\n");
printf(" tiles of varying sizes.\n");
printf("-forcemmx, -forcesse, -forcesse2, -forcesse3 =\n");
printf(" Force MMX, SSE, or SSE2 code paths in TurboJPEG codec\n");
printf("-rgb, -bgr, -rgba, -bgra, -abgr, -argb =\n");
printf(" Test the specified color conversion path in the codec (default: BGR)\n");
printf("-fastupsample = Use fast, inaccurate upsampling code to perform 4:2:2 and 4:2:0\n");
printf(" YUV decoding in libjpeg decompressor\n");
printf("-quiet = Output results in tabular rather than verbose format\n");
printf("-yuvencode = Encode RGB input as planar YUV rather than compressing as JPEG\n");
printf("-yuvdecode = Decode JPEG image to planar YUV rather than RGB\n");
printf("-scale 1/N = scale down the width/height of the decompressed JPEG image by a\n");
printf(" factor of N (N = 1, 2, 4, or 8}\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);
}
@ -533,8 +536,23 @@ int main(int argc, char *argv[])
if(!stricmp(argv[i], "-argb")) pf=BMP_ARGB;
if(!stricmp(argv[i], "-bottomup")) bu=1;
if(!stricmp(argv[i], "-quiet")) quiet=1;
if(!stricmp(argv[i], "-scale") && i<argc-1)
{
int temp1=0, temp2=0;
if(sscanf(argv[++i], "%d/%d", &temp1, &temp2)!=2
|| temp1!=1 || temp2<1 || temp2>8 || (temp2&(temp2-1))!=0)
usage(argv[0]);
scalefactor=temp2;
}
}
}
if(scalefactor!=1 && dotile)
{
printf("Disabling tiled compression/decompression tests, because these tests do not\n");
printf("work when scaled decompression is enabled.\n");
dotile=0;
}
if(!decomponly)
{