mirror of
https://github.com/outbackdingo/UltraGrid.git
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90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
/******************************************************************************
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* Fast DXT - a realtime DXT compression tool
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*
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* Author : Luc Renambot
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*
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* Copyright (C) 2007 Electronic Visualization Laboratory,
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* University of Illinois at Chicago
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either Version 2.1 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser Public License along
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* with this library; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*****************************************************************************/
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#include "libdxt.h"
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int
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main(int argc, char** argv)
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{
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byte *in;
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byte *out;
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int nbbytes;
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// Initialize some timing functions and else
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aInitialize();
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/*
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Read an image.
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*/
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unsigned long width = atoi(argv[1]);
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unsigned long height = atoi(argv[2]);
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in = (byte*)memalign(16, width*height*4);
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memset(in, 0, width*height*4);
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FILE *f=fopen(argv[3], "rb");
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fread(in, 1, width*height*4, f);
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fclose(f);
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out = (byte*)memalign(16, width*height*4);
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memset(out, 0, width*height*4);
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fprintf(stderr, "Converting from raw: %ldx%ld\n", width, height);
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#define NUM_LOOPS 100
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double t1, t2;
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t1 = aTime();
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for (int k=0;k<NUM_LOOPS;k++)
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{
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//CompressDXT(in, out, width, height, FORMAT_DXT5YCOCG, 4);
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//CompressDXT(in, out, width, height, FORMAT_DXT5, 4);
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CompressDXT(in, out, width, height, FORMAT_DXT1, 2);
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}
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t2 = aTime();
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fprintf(stderr, "Time %.2f sec, Single %.2f sec, Freq %.2f Hz\n",
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t2-t1, (t2-t1)/(double)NUM_LOOPS, ((double)NUM_LOOPS)/(t2-t1) );
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fprintf(stderr, "MP/sec %.2f\n",
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((double)(width*height*NUM_LOOPS)) / ((t2-t1)*1000000.0) );
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#if 1
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FILE *g=fopen("out.dxt", "wb+");
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fwrite(&width, 4, 1, g);
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fwrite(&height, 4, 1, g);
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//nbbytes = width * height * 4 / 4; //DXT5
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nbbytes = width * height * 3 / 6; // DXT1
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fwrite(out, 1, nbbytes, g);
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fclose(g);
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#endif
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memfree(in);
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memfree(out);
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return 0;
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}
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