graphicsmagick_c/examples/rotate.d

   1 // Copyright (C) GraphicsMagick Group 2002 - 2022
   2 import core.stdc.stdio;
   3
   4 import graphicsmagick_c.config;
   5 import graphicsmagick_c.wand.wand_api;
   6
   7 extern (C) int main(int argc, char** argv)
   8 {
   9     MagickWand* magick_wand;
  10     MagickPassFail status = MagickPass;
  11
  12     char* infile, outfile;
  13
  14     if (argc != 3) {
  15         fprintf(stderr, "Usage: %s infile outfile\n", argv[0]);
  16         return 1;
  17     }
  18
  19     infile = argv[1];
  20     outfile = argv[2];
  21
  22     // Load dynamic bindings if required
  23     version (GMagick_Static) {}
  24         else {
  25                 void* libgm;
  26         void* libgmwand;
  27
  28                 bool success = loadGraphicsMagick(libgm);
  29                 if (success) {
  30                         puts("Successfully loaded GraphicsMagick!\n");
  31                 } else {
  32                         puts("Loaded GraphicsMagick with some errors!\n");
  33                 }
  34
  35         success = loadGraphicsMagickWand(libgmwand);
  36         if (success) {
  37             puts("Successfully loaded GraphicsMagickWand!\n");
  38         } else {
  39             puts("Loaded GraphicsMagikcWand with some errors!\n");
  40         }
  41         }
  42
  43     // Initialize GraphicsMagick API
  44     InitializeMagick(*argv);
  45
  46     // Allocate Wand handle
  47     magick_wand = NewMagickWand();
  48
  49     // Read input image file
  50     if (status == MagickPass) {
  51         status = MagickReadImage(magick_wand, infile);
  52     }
  53
  54     // Rotate the image clockwise 30 degrees with a black background
  55     if (status == MagickPass) {
  56         PixelWand* background;
  57         background = NewPixelWand();
  58         PixelSetColor(background, "#000000");
  59         status = MagickRotateImage(magick_wand, background, 30);
  60         DestroyPixelWand(background);
  61     }
  62
  63     // Write output file
  64     if (status == MagickPass) {
  65         status = MagickWriteImage(magick_wand, outfile);
  66     }
  67
  68     // Diagnose any error
  69     if (status != MagickPass) {
  70         char* description;
  71         ExceptionType severity;
  72
  73         description = MagickGetException(magick_wand, &severity);
  74         fprintf(stderr, "%.1024s (severity %d)\n", description, severity);
  75     }
  76
  77     // Release Wand handle
  78     DestroyMagickWand(magick_wand);
  79
  80     // Destroy GraphicsMagick API
  81     DestroyMagick();
  82
  83     return (status == MagickPass ? 0 : 1);
  84 }