STYLE: Remove old comments

[gdcm.git] / src / gdcmJpeg.cxx

diff --git a/src/gdcmJpeg.cxx b/src/gdcmJpeg.cxx
index 5a2fb98418b7eb04edc04fd06822f494d013187c..b98a9acfb888613eb781968d4516197c2f3d5ad6 100644 (file)
--- a/src/gdcmJpeg.cxx
+++ b/src/gdcmJpeg.cxx
@@ -3,8 +3,8 @@
   Program:   gdcm
   Module:    $RCSfile: gdcmJpeg.cxx,v $
   Language:  C++
-  Date:      $Date: 2005/02/04 23:30:21 $
-  Version:   $Revision: 1.41 $
+  Date:      $Date: 2005/06/24 10:55:59 $
+  Version:   $Revision: 1.49 $
                                                                                 
   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
   l'Image). All rights reserved. See Doc/License.txt or
@@ -170,11 +170,7 @@ bool gdcm_write_JPEG_file (std::ofstream *fp, void *im_buf,
 
   /* And we're done! */
 
-  return true; //???
-}
-
-extern "C" {
-  typedef void(*void_jpeg_common_struct)(jpeg_common_struct*);
+  return true;
 }
 
 //-----------------------------------------------------------------------------
@@ -188,6 +184,7 @@ typedef struct my_error_mgr* my_error_ptr;
 /*
  * Here's the routine that will replace the standard error_exit method:
  */
+extern "C" {
 METHODDEF(void) my_error_exit (j_common_ptr cinfo) {
    /* cinfo->err really points to a my_error_mgr struct, so coerce pointer */
    my_error_ptr myerr = (my_error_ptr) cinfo->err;
@@ -200,6 +197,18 @@ METHODDEF(void) my_error_exit (j_common_ptr cinfo) {
    longjmp(myerr->setjmp_buffer, 1);
 }
 
+//METHODDEF(void) my_output_message (j_common_ptr cinfo)
+//{
+//   char buffer[JMSG_LENGTH_MAX];
+// 
+//   /* Create the message */
+//   (*cinfo->err->format_message) (cinfo, buffer);
+//
+//   // Custom display message, we could be more fancy and throw an exception:
+//   gdcmErrorMacro( buffer );
+//}
+
+}
 //-----------------------------------------------------------------------------
  
  /**
@@ -246,8 +255,11 @@ bool JPEGFragment::ReadJPEGFile (std::ifstream *fp, void *image_buffer, int &sta
   // We set up the normal JPEG error routines, then override error_exit.
   
   cinfo.err = jpeg_std_error(&jerr.pub);
-  jerr.pub.error_exit = reinterpret_cast<void_jpeg_common_struct>(my_error_exit);
-  
+  // for any jpeg error call my_error_exit
+  jerr.pub.error_exit = my_error_exit;
+  // for any output message call my_output_message
+  //jerr.pub.output_message = my_output_message;
+
   // Establish the setjmp return context for my_error_exit to use.
   if (setjmp(jerr.setjmp_buffer))
   {
@@ -259,7 +271,7 @@ bool JPEGFragment::ReadJPEGFile (std::ifstream *fp, void *image_buffer, int &sta
     return 0;
   }
   // Now we can initialize the JPEG decompression object.
-  if( statesuspension == 0 )
+  if ( statesuspension == 0 )
     {
     jpeg_create_decompress(&cinfo);
     jpeg_stdio_src(&cinfo, fp, this, 1);
@@ -270,17 +282,17 @@ bool JPEGFragment::ReadJPEGFile (std::ifstream *fp, void *image_buffer, int &sta
     }
    // Step 3: read file parameters with jpeg_read_header()
 
-   if( statesuspension < 2 )
+   if ( statesuspension < 2 )
    {
-      if( jpeg_read_header(&cinfo, TRUE) == JPEG_SUSPENDED )
+      if ( jpeg_read_header(&cinfo, TRUE) == JPEG_SUSPENDED )
       {
       // Suspension in jpeg_read_header
       statesuspension = 2; 
       }
-   
+ 
       // Step 4: set parameters for decompression
       // prevent the library from performing any color space conversion
-      if( cinfo.process == JPROC_LOSSLESS )
+      if ( cinfo.process == JPROC_LOSSLESS )
       {
          cinfo.jpeg_color_space = JCS_UNKNOWN;
          cinfo.out_color_space = JCS_UNKNOWN;
@@ -288,9 +300,9 @@ bool JPEGFragment::ReadJPEGFile (std::ifstream *fp, void *image_buffer, int &sta
    }
 
    // Step 5: Start decompressor
-   if(statesuspension < 3 )
+   if (statesuspension < 3 )
    {
-      if( jpeg_start_decompress(&cinfo) == FALSE )
+      if ( jpeg_start_decompress(&cinfo) == FALSE )
       {
          // Suspension: jpeg_start_decompress
          statesuspension = 3;
@@ -318,14 +330,14 @@ bool JPEGFragment::ReadJPEGFile (std::ifstream *fp, void *image_buffer, int &sta
 
    while (cinfo.output_scanline < cinfo.output_height)
    {
-      if( jpeg_read_scanlines(&cinfo, buffer, 1) == 0 )
+      if ( jpeg_read_scanlines(&cinfo, buffer, 1) == 0 )
         {
         // Suspension in jpeg_read_scanlines
         statesuspension = 3;
         return true;
         }
 // The ijg has no notion of big endian, therefore always swap the jpeg stream
-#if defined(GDCM_WORDS_BIGENDIAN) && (CMAKE_BITS_IN_JSAMPLE != 8)
+#if (defined(GDCM_WORDS_BIGENDIAN) || defined(GDCM_FORCE_BIGENDIAN_EMULATION)) && (CMAKE_BITS_IN_JSAMPLE != 8)
       uint16_t *buffer16 = (uint16_t*)*buffer;
       uint16_t *pimage16 = (uint16_t*)pImage;
       for(unsigned int i=0;i<rowsize/2;i++)
@@ -337,7 +349,7 @@ bool JPEGFragment::ReadJPEGFile (std::ifstream *fp, void *image_buffer, int &sta
    }
 
    // Step 7: Finish decompression
-   if( jpeg_finish_decompress(&cinfo) == FALSE )
+   if ( jpeg_finish_decompress(&cinfo) == FALSE )
      {
      // Suspension: jpeg_finish_decompress
      statesuspension = 4;