1 files changed, 211 insertions, 0 deletions
diff --git a/html/examples/im_info.cpp b/html/examples/im_info.cpp
new file mode 100644
index 0000000..89ec8c4
--- /dev/null
+++ b/html/examples/im_info.cpp
@@ -0,0 +1,211 @@
+/* IM 3 sample that returns information about a file.
+
+  Needs "im.lib".
+
+  Usage: im_info <file_name>
+
+    Example: im_info test.tif
+*/
+
+#include <im.h>
+#include <im_util.h>
+#include <im_binfile.h>
+#include <im_format_jp2.h>
+#include <im_format_avi.h>
+#include <im_format_wmv.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <memory.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 FindZero(imbyte* data, int count)
+{
+  for (int i = 0; i < count; i++)
+  {
+    if (data[i] == 0)
+      return 1;
+  }
+  return 0;
+}
+
+char* AttribData2Str(const void* data, int data_type)
+{
+  static char data_str[50] = "";
+
+  switch(data_type)
+  {
+  case IM_BYTE:
+    sprintf(data_str, "%3d", (int)(*((imbyte*)data)));
+    break;
+  case IM_USHORT:
+    sprintf(data_str, "%5d", (int)(*((imushort*)data)));
+    break;
+  case IM_INT:  
+    sprintf(data_str, "%5d", *((int*)data));
+    break;
+  case IM_FLOAT:
+    sprintf(data_str, "%5.2f", (double)(*((float*)data)));
+    break;
+  case IM_CFLOAT:
+    {
+      float *c = (float*)data;
+      sprintf(data_str, "%5.2g, %5.2f", (double)*c, (double)*(c+1));
+    }
+    break;
+  }
+
+  return data_str;
+}
+
+char* GetSizeDesc(double *size)
+{
+  char* size_desc;
+
+  if (*size < 1024)
+    size_desc = "b";
+  else
+  {
+    *size /= 1024;
+
+    if (*size < 1024)
+      size_desc = "Kb";
+    else
+    {
+      *size /= 1024;
+      size_desc = "Mb";
+    }
+  }
+
+  return size_desc;
+}
+
+unsigned long FileSize(const char* file_name)
+{
+  imBinFile* bfile = imBinFileOpen(file_name);
+  if (!bfile) return 0;
+
+  unsigned long file_size = imBinFileSize(bfile);
+
+  imBinFileClose(bfile);
+  return file_size;
+}
+
+void PrintImageInfo(const char* file_name)
+{
+  printf("IM Info\n");
+  printf("  File Name:\n    %s\n", file_name);
+
+  int error;
+  imFile* ifile = imFileOpen(file_name, &error);
+  if (!ifile) 
+  {
+    PrintError(error);
+    return;
+  }
+
+  double file_size = FileSize(file_name);
+  printf("  File Size: %.2f %s\n", file_size, GetSizeDesc(&file_size));
+
+  char format[10];
+  char compression[20];
+  int image_count;
+  imFileGetInfo(ifile, format, compression, &image_count);
+
+  char format_desc[50];
+  imFormatInfo(format, format_desc, NULL, NULL);
+  printf("  Format: %s - %s\n", format, format_desc);
+  printf("  Compression: %s\n", compression);
+  printf("  Image Count: %d\n", image_count);
+  
+  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)
+    {
+      PrintError(error);
+      imFileClose(ifile);  
+      return;
+    }
+
+    printf("  Image #%d\n", i);
+    printf("    Width: %d\n", width);
+    printf("    Height: %d\n", height);
+    printf("    Color Space: %s\n", imColorModeSpaceName(color_mode));
+    printf("      Has Alpha: %s\n", imColorModeHasAlpha(color_mode)? "Yes": "No");
+    printf("      Is Packed: %s\n", imColorModeIsPacked(color_mode)? "Yes": "No");
+    printf("      Is Top Down: %s\n", imColorModeIsTopDown(color_mode)? "Yes": "No");
+    printf("    Data Type: %s\n", imDataTypeName(data_type));
+
+    double image_size = imImageDataSize(width, height, color_mode, data_type);
+    printf("    Data Size: %.2f %s\n", image_size, GetSizeDesc(&image_size));
+
+    char* attrib_list[50];  // should be dynamic allocated
+    int attrib_list_count;
+    imFileGetAttributeList(ifile, attrib_list, &attrib_list_count);
+
+    for (int a = 0; a < attrib_list_count; a++)
+    {
+      if (a == 0)
+        printf("    Attributes:\n");
+
+      int attrib_data_type, attrib_count;
+      const void* attrib_data = imFileGetAttribute(ifile, attrib_list[a], &attrib_data_type, &attrib_count);
+
+      if (attrib_count == 1)
+        printf("      %s: %s\n", attrib_list[a], AttribData2Str(attrib_data, attrib_data_type));
+      else if (attrib_data_type == IM_BYTE && FindZero((imbyte*)attrib_data, attrib_count))
+        printf("      %s: %s\n", attrib_list[a], attrib_data);
+      else
+        printf("      %s: %s %s ...\n", attrib_list[a], AttribData2Str(attrib_data, attrib_data_type), AttribData2Str((imbyte*)attrib_data + imDataTypeSize(attrib_data_type), attrib_data_type));
+    }
+  }
+    
+  imFileClose(ifile);  
+}
+
+int main(int argc, char* argv[])
+{
+//  imFormatRegisterJP2();
+//  imFormatRegisterAVI();
+//  imFormatRegisterWMV();   
+
+  if (argc < 2)
+  {
+    printf("Invalid number of arguments.\n");
+    return 0;
+  }
+
+  PrintImageInfo(argv[1]);
+
+  return 1;
+}
+