#include <tiffio.h>
#include <stdio.h>

int main(int argc, char *argv[]){
  TIFF *output;
  uint32 width, height;
  char *raster;

  // Open the output image
  if((output = TIFFOpen("output.tif", "w")) == NULL){
    fprintf(stderr, "Could not open outgoing image\n");
    exit(42);
  }

  // We need to know the width and the height before we can malloc
  width = 42;
  height = 42;

  if((raster = (char *) malloc(sizeof(char) * width * height * 3)) == NULL){
    fprintf(stderr, "Could not allocate enough memory\n");
    exit(42);
  }

  // Magical stuff for creating the image
  // ...

  // Write the tiff tags to the file
  TIFFSetField(output, TIFFTAG_IMAGEWIDTH, width);
  TIFFSetField(output, TIFFTAG_IMAGELENGTH, height);
  TIFFSetField(output, TIFFTAG_COMPRESSION, COMPRESSION_DEFLATE);
  TIFFSetField(output, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
  TIFFSetField(output, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
  TIFFSetField(output, TIFFTAG_BITSPERSAMPLE, 8);
  TIFFSetField(output, TIFFTAG_SAMPLESPERPIXEL, 3);

  // Actually write the image
  if(TIFFWriteEncodedStrip(output, 0, raster, width * height * 3) == 0){
    fprintf(stderr, "Could not write image\n");
    exit(42);
  }

  TIFFClose(output);
}