Initial import. Contains the im, cd and iup librairies, and a "working" Makefile for them under linux.

7 files changed, 1215 insertions, 0 deletions

diff --git a/im/test/glut_capture.c b/im/test/glut_capture.c
new file mode 100644
index 0000000..80aadd2
--- /dev/null
+++ b/im/test/glut_capture.c
@@ -0,0 +1,415 @@
+/* GLUT Capture Sample
+
+   Uses GLUT for user interface
+        OpenGL for drawing
+        IM for image I/O and capture
+
+  Needs "opengl32.lib", "glu32.lib", "glut32.lib", "vfw32.lib", "strmiids.lib", 
+        "im.lib", "im_capture.lib", "im_avi.lib" and "im_process.lib".
+
+   Control Keys:
+
+  <Esc> - Terminates
+  <Space> - Activates/Deactivates the capturing.
+  <F1>, <F2> , <F3>, etc - Shows capture configuration dialogs, in general 2, but can have more.
+  <v> - Starts to save every frame in an AVI file.
+  <b> - Process a background image using an average of N frames.
+  <s> - Saves the background image in a BMP file.
+  <1>, <2>, etc - Activates an processing operation. 
+                  Only operation 1 is working, it subtracts the background image if one was created.
+  <0> - Deactivates all the processing operations.
+
+  ATENTION: These keys works at the GLUT window. 
+            But the text input in done at the console window. 
+            Check the correct window focus before typing keys.
+*/
+
+#include <stdio.h>
+#include <time.h>
+#include <stdlib.h>
+#include <memory.h>
+
+#include <GL/glut.h>
+#include <im.h>
+#include <im_capture.h>
+#include <im_image.h>
+#include <im_convert.h>
+#include <im_process.h>
+#include <im_format_avi.h>
+#include <im_util.h>
+
+
+/* Global Variables */
+imVideoCapture* myVideoCap;    /* capture control */
+imImage* image = NULL;         /* capture buffer  */
+unsigned char* gl_data = NULL; /* opengl display buffer */
+
+char video_filename[512] = "";     
+imFile* video_file = NULL;
+
+imImage* back_image = NULL;        /* background image */
+imImage* back_acum = NULL;         /* aux image for background image calculation */
+int back_count = 0;                /* number of images to average */
+int back_index = 0;                /* average image counter */
+
+int user_key[9] = {0, 0, 0, 0, 0, 0, 0, 0, 0};
+
+static void SimpleBackSub(imbyte *map, imbyte *back_map, int count, float tol)
+{
+  int i;
+  for (i = 0; i < count; i++)
+  {
+    int diff = map[i] - back_map[i];
+    if (diff < 0) diff = -diff;
+
+    if(diff <= tol)
+      map[i] = 0;
+  }
+}
+
+static float tol = 10; /* you should use some key to change this */
+
+void capture_process(int* user_key, imImage* image, imImage* back_image)
+{
+  if (user_key[0] && back_image) /* '1' */
+  {
+    int i;
+    for (i = 0; i < image->depth; i++)  /* notice that here depth is always 3 */
+    {
+      SimpleBackSub((imbyte*)image->data[i], (imbyte*)back_image->data[i], image->count, tol);
+    }
+  }
+
+  /***** call other operations here ******/
+}
+
+
+/* Aux to draw a number in the display */
+void display_number(int num)
+{
+  int i;
+  char msg[30];
+  sprintf(msg,"%4d", num);
+  glColor3f(1.0f,0.0f,0.0f); 
+  glRasterPos2f(10.f,10.f); 
+  for(i = 0; msg[i]; i++) 
+    glutBitmapCharacter(GLUT_BITMAP_HELVETICA_12, msg[i]);
+}
+
+/* GLUT display callback */
+/* called everytime the window needs to be updated */
+void display(void) 
+{
+  if (!image)
+    return;
+
+  /* Draws the captured image at (0,0) */
+  glRasterPos2f(0.f, 0.f); 
+  glDrawPixels(image->width, image->height, GL_RGB, GL_UNSIGNED_BYTE, gl_data);
+
+  glutSwapBuffers();
+}
+
+
+/* GLUT reshape callback */
+/* called everytime the window changes its size */
+void reshape(int w, int h)
+{
+  glViewport(0, 0, w, h);
+} 
+
+
+/* GLUT idle callback */
+/* called when there is no events to be processed */
+void idle(void)
+{
+  if (imVideoCaptureLive(myVideoCap, -1))
+  {
+    imVideoCaptureFrame(myVideoCap, image->data[0], IM_RGB, 1000);
+
+    if (back_image && back_index < back_count)
+    {
+      /* calculating the background image */
+
+      imProcessUnArithmeticOp(image, back_acum, IM_UN_INC);  /* back_image += image */
+      back_index++;
+
+      if (back_index == back_count)  /* last sum, divide by N */
+      {
+        imProcessArithmeticConstOp(back_acum, (float)back_count, back_image, IM_BIN_DIV);
+        printf("Background image updated.\n");
+      }
+    }
+    else
+    {
+      /* call some processing */
+      capture_process(user_key, image, back_image);
+
+      if (video_file)
+      {
+        imFileWriteImageInfo(video_file, image->width, image->height, IM_RGB, IM_BYTE);
+        imFileWriteImageData(video_file, image->data[0]);
+      }
+    }
+
+    imConvertPacking(image->data[0], gl_data, image->width, image->height, image->depth, image->data_type, 0);
+    display();
+  }
+}
+
+
+/* OpenGL initialization */
+void glinit(void)
+{
+  if (!image)
+    return;
+
+  glMatrixMode(GL_PROJECTION);
+  glLoadIdentity();
+  gluOrtho2D (0.0, (GLdouble)image->width, 0.0, (GLdouble)image->height);
+  glMatrixMode(GL_MODELVIEW);
+  glLoadIdentity();
+}
+
+
+/* updates the capture image size and display buffer size */
+void updatebuffer(void)
+{
+  int width, height;
+
+  /* retrieve the image size */
+  imVideoCaptureGetImageSize(myVideoCap, &width, &height);
+
+  if (width != image->width || height != image->height)
+  {
+    /* fix the buffer size */
+    imImageReshape(image, width, height);
+    gl_data = realloc(gl_data, image->size);
+
+    /* fix the window size */
+    glutReshapeWindow(image->width, image->height); 
+
+    /* re-inititalizes the OpenGL */
+    glinit();
+  }
+}
+
+
+/* GLUT function key callback */
+/* called everytime a function key is pressed */
+void parsefunckey(int key, int x, int y)
+{
+  switch (key) {
+    case GLUT_KEY_F1:   /* F1, F2, F.. = shows the capture configuration dialogs */
+    case GLUT_KEY_F2:                                      
+    case GLUT_KEY_F3:
+    case GLUT_KEY_F4:
+    case GLUT_KEY_F5:
+    case GLUT_KEY_F6:
+    case GLUT_KEY_F7:
+    case GLUT_KEY_F8:
+      imVideoCaptureLive(myVideoCap, 0);      /* deactivate the capture before calling the dialog */
+      imVideoCaptureShowDialog(myVideoCap, key - GLUT_KEY_F1, NULL);
+      updatebuffer();
+      imVideoCaptureLive(myVideoCap, 1);
+      break;
+  }
+}
+
+/* GLUT key callback */
+/* called everytime an ASCII key is pressed */
+void parsekey(unsigned char key, int x, int y)
+{
+  int error, index;
+  switch (key) {
+    case 27:                                       /* Esc = terminates */
+      printf("\nTerminating...\n");
+      imVideoCaptureDisconnect(myVideoCap);
+      imVideoCaptureDestroy(myVideoCap);
+      imImageDestroy(image);
+      if (video_file) 
+      {
+        imFileClose(video_file);
+        printf("AVI file created.\n");
+      }
+      free(gl_data);
+      exit(1);
+    case ' ':                                      /* Space = activates/deactivates the capturing */
+      if (imVideoCaptureLive(myVideoCap, -1))
+        imVideoCaptureLive(myVideoCap, 0);
+      else
+        imVideoCaptureLive(myVideoCap, 1);
+      break;
+    case 'v':
+      if (video_file) 
+      {
+        imFileClose(video_file);
+        printf("AVI file created.\n");
+        video_file = NULL;
+        break;
+      }
+      printf("Enter the AVI file name:\n  >");
+      scanf("%s", video_filename);
+      video_file = imFileNew(video_filename, "AVI", &error);
+      if (!video_file)
+        printf("Error creating video file.\n");
+      else
+      {
+        imFileSetInfo(video_file, "CUSTOM");  /* shows the compression options dialog */
+        imFileWriteImageInfo(video_file, image->width, image->height, IM_RGB, IM_BYTE);
+      }
+      break;
+    case 'b':
+      if (back_image) 
+      {
+        imImageDestroy(back_image);
+        imImageDestroy(back_acum);
+      }
+      printf("Enter the number of images to average:\n  >");
+      scanf("%d", &back_count);
+      back_acum = imImageCreate(image->width, image->height, IM_RGB, IM_USHORT);
+      back_image = imImageClone(image);
+      back_index = 0;
+      break;
+    case 's':
+      if (back_image) 
+      {
+        char filename[512];
+        imFile* ifile;
+        printf("Enter the BMP file name:\n  >");
+        scanf("%s", filename);
+        ifile = imFileNew(filename, "BMP", &error);
+        if (!ifile) {
+          printf("Error creating image file.\n"); return;
+        }
+        imFileSaveImage(ifile, back_image);
+        imFileClose(ifile);
+        printf("BMP file created.\n");
+      }
+      break;
+    case '0':
+      memset(user_key, 0, 9*sizeof(int));
+      break;
+    case '1':
+    case '2':
+    case '3':
+    case '4':
+    case '5':
+    case '6':
+    case '7':
+    case '8':
+    case '9':
+      index = key - '1';
+      user_key[index] = user_key[index]? 0: 1;  /* switch state */
+      if (user_key[index])
+        printf("Processing %c activated. \n", key);
+      else
+        printf("Processing %c deactivated. \n", key);
+      return;
+    default:
+      glutPostRedisplay();
+      return;
+  }
+}
+
+
+/* Returns a capture device */
+int getcapture(void)
+{
+  int i;
+  int cap_count = imVideoCaptureDeviceCount();
+  if (cap_count == 1)  /* only one device */
+    return 0;
+
+  printf("Enter the capture device number to use:\n");
+  for (i = 0; i < cap_count; i++)
+  {
+    printf("  %s\n", imVideoCaptureDeviceDesc(i));
+  }
+
+  printf("  > ");
+  scanf("%d", &i);
+  if (i < 0 || i >= cap_count) 
+    return 0;
+
+  return i;
+}
+
+
+/* Initializes the capture device */
+int initcapture(void)
+{
+  int width, height;
+
+  /* creates an IM video capture manager */
+  myVideoCap = imVideoCaptureCreate();
+  if (!myVideoCap) {
+    printf("No capture device found.\n"); return 0;
+  }
+
+  /* connects the device */
+  if (!imVideoCaptureConnect(myVideoCap, getcapture())) {
+    imVideoCaptureDestroy(myVideoCap);
+    printf("Can not connect to capture device.\n");  return 0;
+  }
+
+  if (!imVideoCaptureLive(myVideoCap, 1)) {
+    imVideoCaptureDisconnect(myVideoCap);
+    imVideoCaptureDestroy(myVideoCap);
+    printf("Can not activate capturing.\n");  return 0;
+  }
+
+  /* retrieve the image size */
+  imVideoCaptureGetImageSize(myVideoCap, &width, &height);
+
+  /* alocates the buffers */
+  image = imImageCreate(width, height, IM_RGB, IM_BYTE);
+  gl_data = malloc(image->size);
+
+  return 1;
+}
+
+
+int main(int argc, char* argv[])
+{
+  printf("GLUT Capture\n");
+  printf("  <Esc> - Terminates.\n"
+         "  <Space> - Activates/Deactivates the capturing.\n"
+         "  <F1>, <F2> , <F3>, ... - Shows capture configuration dialogs.\n"
+         "  <v> - Starts to save every frame in an AVI file.\n"
+         "  <b> - Process a background image using an average of N frames.\n"
+         "  <s> - Saves the background image in a BMP file.\n"
+         "  <1>, <2>, ... - Activates an processing operation.\n"
+         "  <0> - Deactivates all the processing operations.\n\n");
+
+  /* Initializes the capture device */
+  if (!initcapture()) 
+    return 1;
+
+  imFormatRegisterAVI();
+
+  /* GLUT initialization */
+  glutInit(&argc, argv);                           
+  glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);     
+  glutInitWindowPosition(100, 100);                
+  glutInitWindowSize(image->width, image->height); 
+  glutCreateWindow("GLUT Capture");         
+
+  glClearColor(0., 0., 0., 1.0);                   /* window background */
+	glPixelStorei(GL_UNPACK_ALIGNMENT, 1);           /* data alignment is 1 */
+
+  /* register GLUT callbacks */
+  glutDisplayFunc(display);
+  glutReshapeFunc(reshape);
+  glutKeyboardFunc(parsekey);
+  glutSpecialFunc(parsefunckey);
+  glutIdleFunc(idle);
+
+  /* OpenGL initialization */
+  glinit();
+
+  /* GLUT message loop */
+  glutMainLoop();
+
+  return 0;
+}
diff --git a/im/test/im_copy.cpp b/im/test/im_copy.cpp
new file mode 100755
index 0000000..5b4c8cd
--- /dev/null
+++ b/im/test/im_copy.cpp
@@ -0,0 +1,145 @@
+/* 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> [<output_compression]]
+
+    Example: im_copy test.tif test_proc.tif
+*/
+
+#include <im.h>
+#include <im_util.h>
+#include <im_format_avi.h>
+#include <im_format_wmv.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;
+  }
+
+//  imFormatRegisterAVI();
+//  imFormatRegisterWMV();
+
+  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], (argc < 3)? format: argv[3], &error);
+  if (!ofile)
+    goto man_error;
+
+  if (argc < 4)
+    imFileSetInfo(ofile, compression);
+  else
+    imFileSetInfo(ofile, argv[4]);
+
+  for (int i = 0; i < image_count; i++)
+  {
+    int size, max_size = 0;
+    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;
+
+    size = imImageDataSize(width, height, color_mode, data_type);
+
+    if (size > max_size)
+    {
+      data = realloc(data, size);
+      max_size = size;
+    }
+
+    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);
+    }
+
+    if (imColorModeSpace(color_mode) == IM_MAP)
+    {
+      long palette[256];
+      int palette_count;
+      imFileGetPalette(ifile, palette, &palette_count);
+      imFileSetPalette(ifile, palette, palette_count);
+    }
+
+    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;
+
+    printf(".");
+  }
+  printf("done");
+
+  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;
+}
diff --git a/im/test/im_info.cpp b/im/test/im_info.cpp
new file mode 100644
index 0000000..89ec8c4
--- /dev/null
+++ b/im/test/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;
+}
+
diff --git a/im/test/im_info.mak b/im/test/im_info.mak
new file mode 100755
index 0000000..211e7af
--- /dev/null
+++ b/im/test/im_info.mak
@@ -0,0 +1,11 @@
+APPNAME = im_info
+APPTYPE = CONSOLE
+LINKER = g++
+
+SRC = im_info.cpp
+
+USE_IM = Yes
+
+IM = ..
+
+USE_STATIC = Yes
diff --git a/im/test/im_view.c b/im/test/im_view.c
new file mode 100644
index 0000000..e271394
--- /dev/null
+++ b/im/test/im_view.c
@@ -0,0 +1,182 @@
+/* IM 3 sample that shows an image.
+
+  Needs "im.lib", "iup.lib", "cd.lib" and "cdiup.lib".
+
+  Usage: im_view <file_name>
+
+    Example: im_view test.tif
+
+    
+  Click on image to open another file.
+*/
+
+#include <iup.h>
+#include <cd.h>
+#include <cdiup.h>
+#include <im.h>
+#include <im_image.h>
+
+#include <stdio.h>
+#include <string.h>
+
+
+static int disable_repaint = 0; /* used to optimize repaint, while opening a new file */
+
+static void PrintError(int error)
+{
+  switch (error)
+  {
+  case IM_ERR_OPEN:
+    IupMessage("IM", "Error Opening File.");
+    break;
+  case IM_ERR_MEM:
+    IupMessage("IM", "Insuficient memory.");
+    break;
+  case IM_ERR_ACCESS:
+    IupMessage("IM", "Error Accessing File.");
+    break;
+  case IM_ERR_DATA:
+    IupMessage("IM", "Image type not Suported.");
+    break;
+  case IM_ERR_FORMAT:
+    IupMessage("IM", "Invalid Format.");
+    break;
+  case IM_ERR_COMPRESS:
+    IupMessage("IM", "Invalid or unsupported compression.");
+    break;
+  default:
+    IupMessage("IM", "Unknown Error.");
+  }
+}
+
+static int cbRepaint(Ihandle* iup_canvas)
+{
+  cdCanvas* cd_canvas = (cdCanvas*)IupGetAttribute(iup_canvas, "cdCanvas");
+  imImage* image = (imImage*)IupGetAttribute(iup_canvas, "imImage");
+
+  if (!cd_canvas || disable_repaint)
+    return IUP_DEFAULT;
+
+  cdCanvasActivate(cd_canvas);
+  cdCanvasClear(cd_canvas);
+
+  if (!image)
+    return IUP_DEFAULT;
+
+  imcdCanvasPutImage(cd_canvas, image, 0, 0, image->width, image->height, 0, 0, 0, 0);
+  
+  cdCanvasFlush(cd_canvas);
+  
+  return IUP_DEFAULT;
+}
+
+static void ShowImage(char* file_name, Ihandle* iup_dialog)
+{
+  int error;
+  imImage* image = (imImage*)IupGetAttribute(iup_dialog, "imImage");
+  if (image) imImageDestroy(image);
+  IupSetAttribute(iup_dialog, "imImage", NULL);
+
+  image = imFileImageLoadBitmap(file_name, 0, &error);
+  if (error) PrintError(error);
+  if (!image) return;
+
+  IupSetAttribute(iup_dialog, "imImage", (char*)image);
+  IupStoreAttribute(iup_dialog, "TITLE", file_name);
+
+  cbRepaint(iup_dialog); /* we can do this because canvas inherit attributes from the dialog */
+}
+
+static int cbButton(Ihandle* iup_canvas, int but, int pressed)
+{
+  char file_name[200] = "*.*";
+
+  if (but != IUP_BUTTON1 || !pressed)
+    return IUP_DEFAULT;
+  
+  disable_repaint = 1;
+  if (IupGetFile(file_name) != 0)
+  {
+    disable_repaint = 0;
+    return IUP_DEFAULT;
+  }
+
+  disable_repaint = 0;
+  ShowImage(file_name, IupGetDialog(iup_canvas));
+  
+  return IUP_DEFAULT;
+}
+
+static int cbClose(Ihandle* iup_dialog)
+{
+  cdCanvas* cd_canvas = (cdCanvas*)IupGetAttribute(iup_dialog, "cdCanvas");
+  imImage* image = (imImage*)IupGetAttribute(iup_dialog, "imImage");
+
+  if (cd_canvas) cdKillCanvas(cd_canvas);
+  if (image) imImageDestroy(image);
+
+  IupSetAttribute(iup_dialog, "cdCanvas", NULL);
+  IupSetAttribute(iup_dialog, "imImage", NULL);
+
+  return IUP_CLOSE;
+}
+
+static Ihandle* CreateDialog(void)
+{
+  Ihandle *iup_dialog;
+  Ihandle *iup_canvas;
+  cdCanvas* cd_canvas;
+
+  iup_canvas = IupCanvas("do_nothing");
+  IupSetAttribute(iup_canvas, IUP_BUTTON_CB, "cbButton");
+  IupSetAttribute(iup_canvas, IUP_ACTION, "cbRepaint");
+  
+  iup_dialog = IupDialog(iup_canvas);
+  IupSetAttribute(iup_dialog, IUP_CLOSE_CB, "cbClose");
+  IupSetAttribute(iup_dialog, IUP_SIZE, "HALFxHALF");
+
+  IupSetFunction("cbRepaint", (Icallback)cbRepaint);
+  IupSetFunction("cbButton", (Icallback)cbButton);
+  IupSetFunction("cbClose", (Icallback)cbClose);
+
+  IupMap(iup_dialog);
+
+  cd_canvas = cdCreateCanvas(CD_IUP, iup_canvas);
+  IupSetAttribute(iup_dialog, "cdCanvas", (char*)cd_canvas);
+
+  return iup_dialog;
+}
+
+//#include "im_format_avi.h"
+
+int main(int argc, char* argv[])
+{
+  Ihandle* dlg;
+
+  //imFormatRegisterAVI();
+  IupOpen(&argc, &argv);
+
+  dlg = CreateDialog();
+
+  IupShow(dlg);
+  
+  /* Try to get a file name from the command line. */
+  if (argc > 1)
+  {
+    ShowImage(argv[1], dlg);
+  }
+  else   
+  {
+    char file_name[1024] = "*.*";
+    if (IupGetFile(file_name) == 0)
+    {
+      ShowImage(file_name, dlg);
+    }
+  }
+                                   
+  IupMainLoop();
+  IupDestroy(dlg);
+  IupClose();
+
+  return 1;
+}
diff --git a/im/test/im_view.mak b/im/test/im_view.mak
new file mode 100644
index 0000000..45e4363
--- /dev/null
+++ b/im/test/im_view.mak
@@ -0,0 +1,14 @@
+APPNAME = im_view
+
+LINKER = g++
+
+SRC = im_view.c
+
+USE_CD = Yes
+USE_IUPCONTROLS = Yes
+USE_IUP3 = Yes
+USE_IM = Yes
+
+IM = ..
+
+USE_STATIC = Yes
diff --git a/im/test/iupglview.c b/im/test/iupglview.c
new file mode 100644
index 0000000..93e0054
--- /dev/null
+++ b/im/test/iupglview.c
@@ -0,0 +1,237 @@
+
+#ifdef WIN32            
+#include <windows.h>    /* necessary because of the Microsoft OpenGL headers dependency */
+#endif
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <time.h>
+
+#include <iup.h>
+#include <iupgl.h>
+
+#include <im.h>
+#include <im_image.h>
+#include <im_util.h>
+#include <im_convert.h>
+
+int app_repaint_cb(Ihandle* self)
+{
+  unsigned char* gl_data = (unsigned char*)IupGetAttribute(self, "APP_GL_DATA");
+  int width = IupGetInt(self, "APP_GL_WIDTH");
+  int height = IupGetInt(self, "APP_GL_HEIGHT");
+  IupGLMakeCurrent(self);        /* activates this GL Canvas as the current drawing area. */
+  glClear(GL_COLOR_BUFFER_BIT);  /* clears the back buffer */
+
+  if (gl_data)
+  {
+    /* Draws the captured image at (0,0) */
+    glRasterPos2f(0.f, 0.f); 
+    glDrawPixels(width, height, GL_RGB, GL_UNSIGNED_BYTE, gl_data);
+  }
+
+  IupGLSwapBuffers(self);        /* swap data from back buffer to front buffer */
+  return IUP_DEFAULT;
+} 
+
+void appGLInit(int width, int height)
+{
+  glClearColor(0., 0., 0., 1.0);                   /* window background */
+  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);           /* data alignment is 1 */
+
+  glViewport(0, 0, width, height);
+
+  glMatrixMode(GL_PROJECTION);
+  glLoadIdentity();
+  gluOrtho2D (0.0, (GLdouble)width, 0.0, (GLdouble)height);
+
+  glMatrixMode(GL_MODELVIEW);
+  glLoadIdentity();
+}
+
+int app_resize_cb(Ihandle* self, int width, int height)
+{
+  IupGLMakeCurrent(self);
+  appGLInit(width, height);
+  return IUP_DEFAULT;
+} 
+
+/* OpenGL does not supports palette based images, so convert to RGB */
+/* this function can also be use for RGBA images */
+void ConvertMapToGLData(unsigned char* data, int count, int depth, long* palette, int palette_count)
+{
+  int c, i;
+  unsigned char r[256], g[256], b[256];
+
+  unsigned char* src_data = data + count-1;
+  unsigned char* dst_data = data + depth*(count-1);
+
+  for (c = 0; c < palette_count; c++)
+    imColorDecode(&r[c], &g[c], &b[c], palette[c]);
+
+  for (i = 0; i < count; i++)
+  {
+    int index = *src_data;
+    *dst_data       =  r[index];
+    *(dst_data+1) = g[index];
+    *(dst_data+2) = b[index];
+
+    dst_data -= depth;
+    src_data--;
+  }
+}
+
+int app_open_cb(Ihandle* self)
+{
+  imFile* ifile;             /* file input */
+  int ret, error;
+  unsigned char* gl_data = (unsigned char*)IupGetAttribute(self, "APP_GL_DATA");
+  char filename[1024] = ".\\*.*";
+
+  /* get a file name */
+  ret = IupGetFile(filename);
+  if (ret == -1)
+    return IUP_DEFAULT;
+
+  ifile = imFileOpen(filename, &error);
+  if (!ifile)
+  {
+    IupMessage("Error", "Error reading image file.");
+    return IUP_DEFAULT;
+  }
+
+  {
+    int width = 0, height = 0, file_color_mode, color_space;
+    Ihandle* dialog = IupGetDialog(self);
+    imFileReadImageInfo(ifile, 0, &width, &height, &file_color_mode, NULL);
+
+    /* alocates the buffers */
+    if (gl_data) free(gl_data);
+    gl_data = malloc(width*height*3);
+    IupSetAttribute(dialog, "APP_GL_DATA", gl_data);
+    IupSetfAttribute(dialog, "APP_GL_WIDTH", "%d", width);
+    IupSetfAttribute(dialog, "APP_GL_HEIGHT", "%d", height);
+
+    imFileReadImageData(ifile, gl_data, 1, IM_PACKED);
+
+    color_space = imColorModeSpace(file_color_mode);
+    if (color_space == IM_MAP || color_space == IM_GRAY || color_space == IM_BINARY)
+    {
+      long palette[256];
+      int palette_count;
+      imFileGetPalette(ifile, palette, &palette_count);
+      ConvertMapToGLData(gl_data, width*height, 3, palette, palette_count);
+    }
+  }
+
+  imFileClose(ifile);
+
+  return IUP_DEFAULT;
+}
+
+int app_exit_cb(Ihandle *self)
+{
+  unsigned char* gl_data = (unsigned char*)IupGetAttribute(self, "APP_GL_DATA");
+
+  /* destroy buffers */
+  if (gl_data) 
+    free(gl_data);
+
+  return IUP_CLOSE;
+}
+
+int app_about_cb(Ihandle *self)
+{
+  IupMessagef("About", "IUPGLView 1.0\n"
+                       "Tecgraf/PUC-Rio\n"
+                       " ---------------- \n"
+                       "IUP Version %s\n"
+                       "IM Version %s\n"
+                       " ---------------- \n"
+                       "OpenGL:\n"
+                       "  Vendor: %s\n"
+                       "  Renderer: %s\n"
+                       "  Version: %s\n"
+                       , IUP_RELEASE_VERSION, IM_VERSION, 
+                         glGetString(GL_VENDOR),glGetString(GL_RENDERER),glGetString(GL_VERSION));
+  return IUP_DEFAULT;
+}
+
+void mainMenuCreate(void) 
+{
+  Ihandle* file_menu = IupMenu(
+     IupItem( "Open...", "app_open_cb"),
+     IupSeparator(),
+     IupItem( "Exit", "app_exit_cb"),
+     NULL
+  );
+
+  Ihandle* menu = IupMenu(
+     IupSubmenu("File", file_menu),
+     NULL
+  );
+
+  /* this will be used by the dialog */
+  IupSetHandle("app_menu", menu);
+
+  IupSetFunction("app_open_cb", (Icallback)app_open_cb);
+  IupSetFunction("app_exit_cb", (Icallback)app_exit_cb);
+}
+
+void mainDialogCreate(void)
+{
+  Ihandle *dialog, *box, *canvas;
+
+  /* initialize interface */
+
+  /* canvas for the image */
+
+  canvas = IupGLCanvas("app_repaint_cb");
+  IupSetAttribute(canvas, "BORDER", "NO");
+  IupSetAttribute(canvas, "BUFFER", "DOUBLE");   /* use double buffer */
+  IupSetAttribute(canvas, "RESIZE_CB", "app_resize_cb");   /* configure the resize callback */
+
+  IupSetFunction("app_resize_cb", (Icallback)app_resize_cb);
+  IupSetFunction("app_repaint_cb", (Icallback)app_repaint_cb);
+
+  /* this is the most external box that puts together
+     the toolbar, the two canvas and the status bar */
+  box = IupSetAttributes(IupHbox(
+            canvas, 
+            NULL), "MARGIN=10x10");
+
+  /* create the dialog and set its attributes */
+
+  mainMenuCreate();
+
+  dialog = IupDialog(box);
+  IupSetAttribute(dialog, "MENU", "app_menu");     /* configure the menu */
+  IupSetAttribute(dialog, "CLOSE_CB", "app_exit_cb");
+  IupSetAttribute(dialog, "TITLE", "IUPGLView");
+  IupSetAttribute(dialog, "RASTERSIZE", "680x380"); /* initial size */
+  IupSetAttribute(dialog, "SHRINK", "YES");
+  IupSetHandle("app_dialog", dialog);
+
+  IupShowXY(dialog, IUP_CENTER, IUP_CENTER);
+}
+
+int main(int argc, char* argv[]) 
+{
+  /* IUP initialization */
+  IupOpen();
+  IupGLCanvasOpen();
+
+  /* Create and show the main dialog */
+  mainDialogCreate();
+
+  /* IUP event loop */
+  IupMainLoop();
+
+  /* IUP closing */
+  IupClose();
+
+  return 0;
+}