compilation fix for wxUSE_PROTOCOL_FILE=0

[wxWidgets.git] / src / common / imagjpeg.cpp

diff --git a/src/common/imagjpeg.cpp b/src/common/imagjpeg.cpp
index f985604631f44cd36ff3297623a35c95b116e052..2f5cd0a432b3c636152079d6c346e8fe32474ff3 100644 (file)
--- a/src/common/imagjpeg.cpp
+++ b/src/common/imagjpeg.cpp
@@ -20,20 +20,28 @@
 
 #include "wx/defs.h"
 
-#if wxUSE_LIBJPEG
+#if wxUSE_IMAGE && wxUSE_LIBJPEG
 
 #include "wx/imagjpeg.h"
 #include "wx/bitmap.h"
 #include "wx/debug.h"
 #include "wx/log.h"
 #include "wx/app.h"
-extern "C"
-{
-#ifdef __WATCOMC__
+
+// NB: Some compilers define boolean type in Windows headers (e.g. Watcom C++).
+//     This causes a conflict with jmorecfg.h header from libjpeg, so we have
+//     to make sure libjpeg won't try to define boolean itself. This is done by
+//     defining HAVE_BOOLEAN.
+#if defined(__WXMSW__) && (defined(__MWERKS__) || defined(__WATCOMC__))
     #define HAVE_BOOLEAN
+    #include <windows.h>
 #endif
+
+extern "C"
+{
     #include "jpeglib.h"
 }
+
 #include "wx/filefn.h"
 #include "wx/wfstream.h"
 #include "wx/intl.h"
@@ -50,10 +58,6 @@ extern "C"
 #endif
 #endif
 
-#ifdef __WXMSW__
-#include <windows.h>
-#endif
-
 //-----------------------------------------------------------------------------
 // wxJPEGHandler
 //-----------------------------------------------------------------------------
@@ -102,7 +106,7 @@ METHODDEF(void) my_skip_input_data ( j_decompress_ptr cinfo, long num_bytes )
     {
         my_src_ptr src = (my_src_ptr) cinfo->src;
 
-        while (num_bytes > (long)src->pub.bytes_in_buffer) 
+        while (num_bytes > (long)src->pub.bytes_in_buffer)
         {
             num_bytes -= (long) src->pub.bytes_in_buffer;
             src->pub.fill_input_buffer(cinfo);
@@ -198,8 +202,9 @@ bool wxJPEGHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbos
       /* If we get here, the JPEG code has signaled an error.
        * We need to clean up the JPEG object, close the input file, and return.
        */
-      if (verbose) 
+      if (verbose)
         wxLogError(_("JPEG: Couldn't load - file is probably corrupted."));
+      (cinfo.src->term_source)(&cinfo);
       jpeg_destroy_decompress(&cinfo);
       if (image->Ok()) image->Destroy();
       return FALSE;
@@ -306,12 +311,12 @@ bool wxJPEGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbo
     if (!verbose) cinfo.err->output_message=NULL;
 
     /* Establish the setjmp return context for my_error_exit to use. */
-    if (setjmp(jerr.setjmp_buffer)) 
+    if (setjmp(jerr.setjmp_buffer))
     {
         /* If we get here, the JPEG code has signaled an error.
          * We need to clean up the JPEG object, close the input file, and return.
          */
-         if (verbose) 
+         if (verbose)
             wxLogError(_("JPEG: Couldn't save image."));
          jpeg_destroy_compress(&cinfo);
          return FALSE;
@@ -357,7 +362,7 @@ bool wxJPEGHandler::DoCanRead( wxInputStream& stream )
 {
     unsigned char hdr[2];
 
-    stream.Read(&hdr, 2);
+    stream.Read(hdr, 2);
     stream.SeekI(-2, wxFromCurrent);
     return (hdr[0] == 0xFF && hdr[1] == 0xD8);
 }