зеркало из https://github.com/mozilla/mozjpeg.git
385 строки
10 KiB
C
385 строки
10 KiB
C
/* Copyright (C)2004 Landmark Graphics Corporation
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* Copyright (C)2005 Sun Microsystems, Inc.
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* Copyright (C)2009 D. R. Commander
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*
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* This library is free software and may be redistributed and/or modified under
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* the terms of the wxWindows Library License, Version 3.1 or (at your option)
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* any later version. The full license is in the LICENSE.txt file included
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* with this distribution.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* wxWindows Library License for more details.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "./rrtimer.h"
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#include "./turbojpeg.h"
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#define _catch(f) {if((f)==-1) {printf("TJPEG: %s\n", tjGetErrorStr()); goto finally;}}
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const char *_subnamel[NUMSUBOPT]={"4:4:4", "4:2:2", "4:2:0", "GRAY"};
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const char *_subnames[NUMSUBOPT]={"444", "422", "420", "GRAY"};
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int pixels[9][3]=
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{
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{0, 255, 0},
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{255, 0, 255},
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{255, 255, 0},
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{0, 0, 255},
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{0, 255, 255},
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{255, 0, 0},
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{255, 255, 255},
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{0, 0, 0},
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{255, 0, 0}
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};
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void initbuf(unsigned char *buf, int w, int h, int ps, int flags)
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{
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int roffset=(flags&TJ_BGR)?2:0, goffset=1, boffset=(flags&TJ_BGR)?0:2, i,
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_i, j;
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if(flags&TJ_ALPHAFIRST) {roffset++; goffset++; boffset++;}
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memset(buf, 0, w*h*ps);
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for(_i=0; _i<16; _i++)
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{
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if(flags&TJ_BOTTOMUP) i=h-_i-1; else i=_i;
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for(j=0; j<w; j++)
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{
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buf[(w*i+j)*ps+roffset]=255;
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if(((_i/8)+(j/8))%2==0)
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{
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buf[(w*i+j)*ps+goffset]=255;
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buf[(w*i+j)*ps+boffset]=255;
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}
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}
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}
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for(_i=16; _i<h; _i++)
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{
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if(flags&TJ_BOTTOMUP) i=h-_i-1; else i=_i;
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for(j=0; j<w; j++)
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{
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if(((_i/8)+(j/8))%2!=0)
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{
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buf[(w*i+j)*ps+roffset]=255;
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buf[(w*i+j)*ps+goffset]=255;
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}
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}
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}
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}
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int dumpbuf(unsigned char *buf, int w, int h, int ps, int flags)
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{
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int roffset=(flags&TJ_BGR)?2:0, goffset=1, boffset=(flags&TJ_BGR)?0:2, i,
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j;
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for(i=0; i<h; i++)
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{
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for(j=0; j<w; j++)
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{
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printf("%.3d/%.3d/%.3d ", buf[(w*i+j)*ps+roffset],
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buf[(w*i+j)*ps+roffset], buf[(w*i+j)*ps+roffset]);
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}
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printf("\n");
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}
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}
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int checkbuf(unsigned char *buf, int w, int h, int ps, int subsamp, int flags)
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{
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int roffset=(flags&TJ_BGR)?2:0, goffset=1, boffset=(flags&TJ_BGR)?0:2, i,
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_i, j;
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if(flags&TJ_ALPHAFIRST) {roffset++; goffset++; boffset++;}
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if(subsamp==TJ_GRAYSCALE)
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{
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for(_i=0; _i<16; _i++)
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{
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if(flags&TJ_BOTTOMUP) i=h-_i-1; else i=_i;
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for(j=0; j<w; j++)
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{
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unsigned char r=buf[(w*i+j)*ps+roffset],
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g=buf[(w*i+j)*ps+goffset],
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b=buf[(w*i+j)*ps+boffset];
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if(((_i/8)+(j/8))%2==0)
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{
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if(r<253 || g<253 || b<253) return 0;
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}
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else
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{
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if(r<74 || r>78 || g<74 || g>78 || b<74 || b>78) return 0;
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}
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}
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}
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for(_i=16; _i<h; _i++)
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{
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if(flags&TJ_BOTTOMUP) i=h-_i-1; else i=_i;
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for(j=0; j<w; j++)
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{
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unsigned char r=buf[(w*i+j)*ps+roffset],
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g=buf[(w*i+j)*ps+goffset],
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b=buf[(w*i+j)*ps+boffset];
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if(((_i/8)+(j/8))%2==0)
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{
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if(r>2 || g>2 || b>2) return 0;
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}
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else
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{
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if(r<224 || r>228 || g<224 || g>228 || b<224 || b>228) return 0;
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}
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}
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}
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}
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else
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{
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for(_i=0; _i<16; _i++)
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{
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if(flags&TJ_BOTTOMUP) i=h-_i-1; else i=_i;
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for(j=0; j<w; j++)
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{
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if(buf[(w*i+j)*ps+roffset]<253) return 0;
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if(((_i/8)+(j/8))%2==0)
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{
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if(buf[(w*i+j)*ps+goffset]<253) return 0;
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if(buf[(w*i+j)*ps+boffset]<253) return 0;
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}
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else
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{
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if(buf[(w*i+j)*ps+goffset]>2) return 0;
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if(buf[(w*i+j)*ps+boffset]>2) return 0;
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}
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}
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}
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for(_i=16; _i<h; _i++)
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{
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if(flags&TJ_BOTTOMUP) i=h-_i-1; else i=_i;
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for(j=0; j<w; j++)
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{
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if(buf[(w*i+j)*ps+boffset]>2) return 0;
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if(((_i/8)+(j/8))%2==0)
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{
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if(buf[(w*i+j)*ps+roffset]>2) return 0;
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if(buf[(w*i+j)*ps+goffset]>2) return 0;
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}
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else
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{
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if(buf[(w*i+j)*ps+roffset]<253) return 0;
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if(buf[(w*i+j)*ps+goffset]<253) return 0;
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}
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}
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}
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}
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return 1;
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}
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void writejpeg(unsigned char *jpegbuf, unsigned long jpgbufsize, char *filename)
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{
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FILE *outfile=NULL;
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if((outfile=fopen(filename, "wb"))==NULL)
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{
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printf("ERROR: Could not open %s for writing.\n", filename);
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goto finally;
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}
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if(fwrite(jpegbuf, jpgbufsize, 1, outfile)!=1)
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{
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printf("ERROR: Could not write to %s.\n", filename);
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goto finally;
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}
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finally:
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if(outfile) fclose(outfile);
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}
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void gentestjpeg(tjhandle hnd, unsigned char *jpegbuf, unsigned long *size,
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int w, int h, int ps, char *basefilename, int subsamp, int qual, int flags)
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{
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char tempstr[1024]; unsigned char *bmpbuf=NULL;
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const char *pixformat; double t;
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if(flags&TJ_BGR)
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{
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if(ps==3) pixformat="BGR";
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else {if(flags&TJ_ALPHAFIRST) pixformat="ABGR"; else pixformat="BGRA";}
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}
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else
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{
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if(ps==3) pixformat="RGB";
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else {if(flags&TJ_ALPHAFIRST) pixformat="ARGB"; else pixformat="RGBA";}
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}
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printf("%s %s -> %s Q%d ... ", pixformat,
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(flags&TJ_BOTTOMUP)?"Bottom-Up":"Top-Down ", _subnamel[subsamp], qual);
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if((bmpbuf=(unsigned char *)malloc(w*h*ps+1))==NULL)
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{
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printf("ERROR: Could not allocate buffer\n"); goto finally;
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}
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initbuf(bmpbuf, w, h, ps, flags);
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memset(jpegbuf, 0, TJBUFSIZE(w, h));
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t=rrtime();
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_catch(tjCompress(hnd, bmpbuf, w, 0, h, ps, jpegbuf, size, subsamp, qual, flags));
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t=rrtime()-t;
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sprintf(tempstr, "%s_enc_%s_%s_%sQ%d.jpg", basefilename, pixformat,
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(flags&TJ_BOTTOMUP)? "BU":"TD", _subnames[subsamp], qual);
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writejpeg(jpegbuf, *size, tempstr);
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printf("Done. %f ms\n Result in %s\n", t*1000., tempstr);
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finally:
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if(bmpbuf) free(bmpbuf);
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}
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void gentestbmp(tjhandle hnd, unsigned char *jpegbuf, unsigned long jpegsize,
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int w, int h, int ps, char *basefilename, int subsamp, int qual, int flags)
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{
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unsigned char *bmpbuf=NULL;
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const char *pixformat; int _w=0, _h=0; double t;
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if(flags&TJ_BGR)
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{
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if(ps==3) pixformat="BGR";
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else {if(flags&TJ_ALPHAFIRST) pixformat="ABGR"; else pixformat="BGRA";}
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}
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else
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{
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if(ps==3) pixformat="RGB";
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else {if(flags&TJ_ALPHAFIRST) pixformat="ARGB"; else pixformat="RGBA";}
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}
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printf("JPEG -> %s %s ... ", pixformat, (flags&TJ_BOTTOMUP)?"Bottom-Up":"Top-Down ");
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_catch(tjDecompressHeader(hnd, jpegbuf, jpegsize, &_w, &_h));
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if(_w!=w || _h!=h)
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{
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printf("Incorrect JPEG header\n"); goto finally;
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}
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if((bmpbuf=(unsigned char *)malloc(w*h*ps+1))==NULL)
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{
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printf("ERROR: Could not allocate buffer\n"); goto finally;
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}
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memset(bmpbuf, 0, w*ps*h);
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t=rrtime();
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_catch(tjDecompress(hnd, jpegbuf, jpegsize, bmpbuf, w, w*ps, h, ps, flags));
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t=rrtime()-t;
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if(checkbuf(bmpbuf, w, h, ps, subsamp, flags)) printf("Passed.");
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else {printf("FAILED!"); dumpbuf(bmpbuf, w, h, ps, flags);}
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printf(" %f ms\n\n", t*1000.);
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finally:
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if(bmpbuf) free(bmpbuf);
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}
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void dotest(int w, int h, int ps, int subsamp, char *basefilename)
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{
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tjhandle hnd=NULL, dhnd=NULL; unsigned char *jpegbuf=NULL;
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unsigned long size;
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if((jpegbuf=(unsigned char *)malloc(TJBUFSIZE(w, h))) == NULL)
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{
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puts("ERROR: Could not allocate buffer."); goto finally;
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}
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if((hnd=tjInitCompress())==NULL)
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{printf("Error in tjInitCompress():\n%s\n", tjGetErrorStr()); goto finally;}
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if((dhnd=tjInitDecompress())==NULL)
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{printf("Error in tjInitDecompress():\n%s\n", tjGetErrorStr()); goto finally;}
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gentestjpeg(hnd, jpegbuf, &size, w, h, ps, basefilename, subsamp, 100, 0);
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gentestbmp(dhnd, jpegbuf, size, w, h, ps, basefilename, subsamp, 100, 0);
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gentestjpeg(hnd, jpegbuf, &size, w, h, ps, basefilename, subsamp, 100, TJ_BGR);
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gentestbmp(dhnd, jpegbuf, size, w, h, ps, basefilename, subsamp, 100, TJ_BGR);
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gentestjpeg(hnd, jpegbuf, &size, w, h, ps, basefilename, subsamp, 100, TJ_BOTTOMUP);
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gentestbmp(dhnd, jpegbuf, size, w, h, ps, basefilename, subsamp, 100, TJ_BOTTOMUP);
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gentestjpeg(hnd, jpegbuf, &size, w, h, ps, basefilename, subsamp, 100, TJ_BGR|TJ_BOTTOMUP);
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gentestbmp(dhnd, jpegbuf, size, w, h, ps, basefilename, subsamp, 100, TJ_BGR|TJ_BOTTOMUP);
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if(ps==4)
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{
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gentestjpeg(hnd, jpegbuf, &size, w, h, ps, basefilename, subsamp, 100, TJ_ALPHAFIRST);
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gentestbmp(dhnd, jpegbuf, size, w, h, ps, basefilename, subsamp, 100, TJ_ALPHAFIRST);
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gentestjpeg(hnd, jpegbuf, &size, w, h, ps, basefilename, subsamp, 100, TJ_ALPHAFIRST|TJ_BGR);
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gentestbmp(dhnd, jpegbuf, size, w, h, ps, basefilename, subsamp, 100, TJ_ALPHAFIRST|TJ_BGR);
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gentestjpeg(hnd, jpegbuf, &size, w, h, ps, basefilename, subsamp, 100, TJ_ALPHAFIRST|TJ_BOTTOMUP);
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gentestbmp(dhnd, jpegbuf, size, w, h, ps, basefilename, subsamp, 100, TJ_ALPHAFIRST|TJ_BOTTOMUP);
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gentestjpeg(hnd, jpegbuf, &size, w, h, ps, basefilename, subsamp, 100, TJ_ALPHAFIRST|TJ_BGR|TJ_BOTTOMUP);
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gentestbmp(dhnd, jpegbuf, size, w, h, ps, basefilename, subsamp, 100, TJ_ALPHAFIRST|TJ_BGR|TJ_BOTTOMUP);
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}
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finally:
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if(hnd) tjDestroy(hnd);
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if(dhnd) tjDestroy(dhnd);
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if(jpegbuf) free(jpegbuf);
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}
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#define MAXLENGTH 2048
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void dotest1(void)
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{
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int i, j, i2; unsigned char *bmpbuf=NULL, *jpgbuf=NULL;
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tjhandle hnd=NULL; unsigned long size;
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if((hnd=tjInitCompress())==NULL)
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{printf("Error in tjInitCompress():\n%s\n", tjGetErrorStr()); goto finally;}
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printf("Buffer size regression test\n");
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for(j=1; j<48; j++)
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{
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for(i=1; i<(j==1?MAXLENGTH:48); i++)
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{
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if(i%100==0) printf("%.4d x %.4d\b\b\b\b\b\b\b\b\b\b\b", i, j);
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if((bmpbuf=(unsigned char *)malloc(i*j*4))==NULL
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|| (jpgbuf=(unsigned char *)malloc(TJBUFSIZE(i, j)))==NULL)
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{
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printf("Memory allocation failure\n"); goto finally;
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}
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memset(bmpbuf, 0, i*j*4);
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for(i2=0; i2<i*j; i2++)
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{
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bmpbuf[i2*4]=pixels[i2%9][2];
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bmpbuf[i2*4+1]=pixels[i2%9][1];
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bmpbuf[i2*2+2]=pixels[i2%9][0];
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}
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_catch(tjCompress(hnd, bmpbuf, i, i*4, j, 4,
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jpgbuf, &size, TJ_444, 100, TJ_BGR));
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free(bmpbuf); bmpbuf=NULL; free(jpgbuf); jpgbuf=NULL;
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if((bmpbuf=(unsigned char *)malloc(j*i*4))==NULL
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|| (jpgbuf=(unsigned char *)malloc(TJBUFSIZE(j, i)))==NULL)
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{
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printf("Memory allocation failure\n"); goto finally;
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}
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for(i2=0; i2<j*i*4; i2++)
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{
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if(i2%2==0) bmpbuf[i2]=0xFF;
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else bmpbuf[i2]=0;
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}
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_catch(tjCompress(hnd, bmpbuf, j, j*4, i, 4,
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jpgbuf, &size, TJ_444, 100, TJ_BGR));
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free(bmpbuf); bmpbuf=NULL; free(jpgbuf); jpgbuf=NULL;
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}
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}
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printf("Done. \n");
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finally:
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if(bmpbuf) free(bmpbuf); if(jpgbuf) free(jpgbuf);
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if(hnd) tjDestroy(hnd);
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}
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int main(int argc, char *argv[])
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{
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dotest(35, 41, 3, TJ_444, "test");
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dotest(35, 41, 4, TJ_444, "test");
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dotest(35, 41, 3, TJ_GRAYSCALE, "test");
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dotest(35, 41, 4, TJ_GRAYSCALE, "test");
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dotest1();
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return 0;
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}
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