1 files changed, 120 insertions, 0 deletions
diff --git a/html/download/im_copy.cpp b/html/download/im_copy.cpp
new file mode 100644
index 0000000..cf0e0d5
--- /dev/null
+++ b/html/download/im_copy.cpp
@@ -0,0 +1,120 @@
+/* IM 3 sample that copies an image from one file to another. 
+   It is good to test the file formats read and write.
+   If the destiny does not supports the input image it aborts and returns an error.
+
+  Needs "im.lib".
+
+  Usage: im_copy <input_file_name> <output_file_name> [<output_format>]
+
+    Example: im_copy test.tif test_proc.tif
+*/
+
+#include <im.h>
+#include <im_util.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+
+void PrintError(int error)
+{
+  switch (error)
+  {
+  case IM_ERR_OPEN:
+    printf("Error Opening File.\n");
+    break;
+  case IM_ERR_MEM:
+    printf("Insuficient memory.\n");
+    break;
+  case IM_ERR_ACCESS:
+    printf("Error Accessing File.\n");
+    break;
+  case IM_ERR_DATA:
+    printf("Image type not Suported.\n");
+    break;
+  case IM_ERR_FORMAT:
+    printf("Invalid Format.\n");
+    break;
+  case IM_ERR_COMPRESS:
+    printf("Invalid or unsupported compression.\n");
+    break;
+  default:
+    printf("Unknown Error.\n");
+  }
+}
+
+int main(int argc, char* argv[])
+{
+  if (argc < 3)
+  {
+    printf("Invalid number of arguments.\n");
+    return 0;
+  }
+
+  void* data = NULL;
+  imFile* ifile = NULL;
+  imFile* ofile = NULL;
+
+  int error;
+  ifile = imFileOpen(argv[1], &error);
+  if (!ifile) 
+    goto man_error;
+
+  char format[10];
+  char compression[20];
+  int image_count;
+  imFileGetInfo(ifile, format, compression, &image_count);
+
+  ofile = imFileNew(argv[2], argv[3]? argv[3]: format, &error);
+  if (!ofile)
+    goto man_error;
+
+  if (!argv[3])
+    imFileSetInfo(ofile, compression);
+
+  for (int i = 0; i < image_count; i++)
+  {
+    int width, height, color_mode, data_type;
+    error = imFileReadImageInfo(ifile, i, &width, &height, &color_mode, &data_type);
+    if (error != IM_ERR_NONE)
+      goto man_error;
+
+    data = malloc(imImageDataSize(width, height, color_mode, data_type));
+
+    error = imFileReadImageData(ifile, data, 0, -1);
+    if (error != IM_ERR_NONE)
+      goto man_error;
+    
+    char* attrib_list[50];
+    int attrib_list_count;
+    imFileGetAttributeList(ifile, attrib_list, &attrib_list_count);
+
+    for (int a = 0; a < attrib_list_count; a++)
+    {
+      int attrib_data_type, attrib_count;
+      const void* attrib_data = imFileGetAttribute(ifile, attrib_list[a], &attrib_data_type, &attrib_count);
+      imFileSetAttribute(ofile, attrib_list[a], attrib_data_type, attrib_count, attrib_data);
+    }
+
+    error = imFileWriteImageInfo(ofile, width, height, color_mode, data_type);
+    if (error != IM_ERR_NONE)
+      goto man_error;
+
+    error = imFileWriteImageData(ofile, data);
+    if (error != IM_ERR_NONE)
+      goto man_error;
+  }
+
+  free(data);
+  imFileClose(ifile);  
+  imFileClose(ofile);  
+
+  return 1;
+
+man_error:
+  PrintError(error);
+  if (data) free(data);
+  if (ifile) imFileClose(ifile);
+  if (ofile) imFileClose(ofile);
+  return 0;
+}