54 lines
1.2 KiB
C++
54 lines
1.2 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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#include <tier0/platform.h>
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#include "bitmap/float_bm.h"
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#include "mathlib/mathlib.h"
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#include <tier2/tier2.h>
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void main(int argc,char **argv)
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{
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InitCommandLineProgram( argc, argv );
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if ((argc<2) || (argc>3))
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{
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printf("format is %s imagefile.pfm [scalefactor]\n",argv[0]);
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}
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else
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{
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FloatBitMap_t cmap;
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cmap.LoadFromPFM(argv[1]);
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if (argc==3) // scale factor specified
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{
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float scale_factor=atof(argv[2]);
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for(int y=0;y<cmap.Height;y++)
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for(int x=0;x<cmap.Width;x++)
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for(int c=0;c<3;c++)
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cmap.Pixel(x,y,c) *= scale_factor;
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}
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FloatBitMap_t save_orig(&cmap);
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cmap.CompressTo8Bits(8.0);
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char fname[1024];
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strcpy(fname,argv[1]);
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char *dot=strstr(fname,".pfm");
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if (! dot)
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dot=fname+strlen(fname);
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strcpy(dot,"_compressed.tga");
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cmap.WriteTGAFile(fname);
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#ifdef WRITE_OUT_COMPARISON_IMAGES
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// now, write out comparison images
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cmap.Uncompress(8.0);
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cmap.RaiseToPower(1.0/2.2);
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strcpy(dot,"_ref_comp.tga");
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cmap.WriteTGAFile(fname);
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save_orig.RaiseToPower(1.0/2.2);
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strcpy(dot,"_ref_orig.tga");
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save_orig.WriteTGAFile(fname);
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#endif
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}
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}
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