nel/tools/3d/tga_resize/main.cpp

   1
   2
   3 #include "nel/misc/bitmap.h"
   4 #include "nel/misc/file.h"
   5 #include <vector>
   6
   7
   8 using namespace NLMISC;
   9 using namespace std;
  10
  11
  12 void    usage()
  13 {
  14         printf("Usage: tga_resize tgaFileIn tgaFileOut divideRatio.\n   \
  15     eg: tga_resize pipo.tga pipo.tga 2\n \
  16         => pipo.tga widht and height are divided by 2 \n\n");
  17
  18 }
  19
  20
  21 int main(int argc, char *argv[])
  22 {
  23         if(argc != 4)
  24         {
  25                 usage();
  26                 return -1;
  27         }
  28         else
  29         {
  30                 CBitmap         btmp;
  31                 CIFile          inFile;
  32                 COFile          outFile;
  33
  34                 uint    divideRatio;
  35                 NLMISC::fromString(argv[3], divideRatio);
  36                 if(divideRatio==0 || !isPowerOf2(divideRatio))
  37                 {
  38                         printf("divideRatio must be a powerOf2 (1, 2, 4, 8 ...) \n");
  39                         return 0;
  40                 }
  41
  42                 try
  43                 {
  44                         // read.
  45                         if (!inFile.open(argv[1]))
  46                         {
  47                                 printf("Can't open input file %s \n", argv[1]);
  48                                 return -1;
  49                         }
  50                         uint8   depth= btmp.load(inFile);
  51                         if(depth==0)
  52                                 throw Exception("Bad File Format");
  53                         inFile.close();
  54
  55                         // resize.
  56                         btmp.resample(btmp.getWidth() / divideRatio, btmp.getHeight() / divideRatio);
  57
  58                         // output.
  59                         if (!outFile.open(argv[2]))
  60                         {
  61                                 printf("Can't open output file %s \n", argv[2]);
  62                                 return -1;
  63                         }
  64                         btmp.writeTGA(outFile, depth);
  65                 }
  66                 catch (const Exception &e)
  67                 {
  68                         printf("Error: %s\n", e.what());
  69                                 return -1;
  70                 }
  71
  72                 return 0;
  73         }
  74 }