X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/ad81651f00edc6f489d9b6a0839d316a964fd521..bac6b9676c41afbe361b9412e749449b669bfc80:/src/common/imagtiff.cpp

diff --git a/src/common/imagtiff.cpp b/src/common/imagtiff.cpp
index ed5b06bc76..2bbfa1071a 100644
--- a/src/common/imagtiff.cpp
+++ b/src/common/imagtiff.cpp
@@ -1,16 +1,15 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        imagjpeg.cpp
-// Purpose:     wxImage JPEG handler
-// Author:      Vaclav Slavik
+// Name:        imagtiff.cpp
+// Purpose:     wxImage TIFF handler
+// Author:      Robert Roebling
 // RCS-ID:      $Id$
-// Copyright:   (c) Vaclav Slavik
+// Copyright:   (c) Robert Roebling
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-/*
-   We don't put pragma implement in this file because it is already present in
-   src/common/image.cpp
-*/
+#ifdef __GNUG__
+#pragma implementation "imagtiff.h"
+#endif
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
@@ -23,7 +22,7 @@
 
 #if wxUSE_LIBTIFF
 
-#include "wx/image.h"
+#include "wx/imagtiff.h"
 #include "wx/bitmap.h"
 #include "wx/debug.h"
 #include "wx/log.h"
@@ -32,7 +31,6 @@ extern "C"
 {
     #include "tiff.h"
     #include "tiffio.h"
-    #include "tiffiop.h"
 }
 #include "wx/filefn.h"
 #include "wx/wfstream.h"
@@ -73,7 +71,7 @@ _tiffSeekProc(thandle_t handle, toff_t off, int whence)
         case SEEK_END: mode = wxFromEnd; break;
         default:       mode = wxFromCurrent; break;
     }
-    
+
     return (toff_t)stream->SeekI( (off_t)off, mode );
 }
 
@@ -91,13 +89,17 @@ _tiffSizeProc(thandle_t handle)
 }
 
 static int
-_tiffMapProc(thandle_t WXUNUSED(handle), tdata_t* pbase, toff_t* psize)
+_tiffMapProc(thandle_t WXUNUSED(handle),
+             tdata_t* WXUNUSED(pbase),
+             toff_t* WXUNUSED(psize))
 {
     return 0;
 }
 
 static void
-_tiffUnmapProc(thandle_t WXUNUSED(handle), tdata_t base, toff_t size)
+_tiffUnmapProc(thandle_t WXUNUSED(handle),
+               tdata_t WXUNUSED(base),
+               toff_t WXUNUSED(size))
 {
 }
 
@@ -110,9 +112,6 @@ TIFFwxOpen(wxInputStream &stream, const char* name, const char* mode)
         _tiffSeekProc, _tiffCloseProc, _tiffSizeProc,
         _tiffMapProc, _tiffUnmapProc);
 
-    if (tif)
-        tif->tif_fd = (int) &stream;
-	
     return tif;
 }
 
@@ -120,124 +119,126 @@ TIFFwxOpen(wxInputStream &stream, const char* name, const char* mode)
 bool wxTIFFHandler::LoadFile( wxImage *image, wxInputStream& stream, bool verbose, int index )
 {
     image->Destroy();
-    
+
     TIFF *tif = TIFFwxOpen( stream, "image", "r" );
-    
+
     if (!tif)
     {
         if (verbose)
             wxLogError( _("TIFF: Error loading image.") );
-	    
-	return FALSE;
+
+        return FALSE;
     }
-    
+
     if (!TIFFSetDirectory( tif, (tdir_t)index ))
     {
         if (verbose)
             wxLogError( _("Invalid TIFF image index.") );
-	    
+
         TIFFClose( tif );
-	
-	return FALSE;
+
+        return FALSE;
     }
 
     uint32 w, h;
-    size_t npixels;
+    uint32 npixels;
     uint32 *raster;
-    
+
     TIFFGetField( tif, TIFFTAG_IMAGEWIDTH, &w );
     TIFFGetField( tif, TIFFTAG_IMAGELENGTH, &h );
-    
+
     npixels = w * h;
-    
+
     raster = (uint32*) _TIFFmalloc( npixels * sizeof(uint32) );
-    
+
     if (!raster)
     {
         if (verbose)
             wxLogError( _("TIFF: Couldn't allocate memory.") );
-	    
-	return FALSE;
+
+        return FALSE;
     }
 
-    image->Create( w, h );
-    if (!image->Ok()) 
+    image->Create( (int)w, (int)h );
+    if (!image->Ok())
     {
         if (verbose)
             wxLogError( _("TIFF: Couldn't allocate memory.") );
-	    
-	_TIFFfree( raster );
-	
+
+        _TIFFfree( raster );
+
         return FALSE;
     }
-    
+
     if (!TIFFReadRGBAImage( tif, w, h, raster, 0 ))
     {
         if (verbose)
             wxLogError( _("TIFF: Error reading image.") );
-	    
-	_TIFFfree( raster );
-	image->Destroy();
-	
-	return FALSE;
+
+        _TIFFfree( raster );
+        image->Destroy();
+
+        return FALSE;
     }
-    
+
     bool hasmask = FALSE;
-    
+
     unsigned char *ptr = image->GetData();
+    ptr += w*3*(h-1);
     uint32 pos = 0;
-    
+
     for (uint32 i = 0; i < h; i++)
     {
-        for (uint32 j = 0; w < h; j++)
-	{
-	    unsigned char alpha = (unsigned char)(raster[pos] >> 24);
-	    if (alpha < 127)
-	    {
-	        hasmask = TRUE;
-		ptr[0] = image->GetMaskRed();
-		ptr++;
-		ptr[0] = image->GetMaskGreen();
-		ptr++;
-		ptr[0] = image->GetMaskBlue();
-		ptr++;
-	    }
-	    else
-	    {
-	        ptr[0] = (unsigned char)(raster[pos] >> 16);
-		ptr++;
-	        ptr[0] = (unsigned char)(raster[pos] >> 8);
-		ptr++;
-	        ptr[0] = (unsigned char)(raster[pos]);
-		ptr++;
-	    }
-	    pos++;
-	}
+        for (uint32 j = 0; j < w; j++)
+        {
+            unsigned char alpha = (unsigned char)TIFFGetA(raster[pos]);
+            if (alpha < 127)
+            {
+                hasmask = TRUE;
+                ptr[0] = image->GetMaskRed();
+                ptr++;
+                ptr[0] = image->GetMaskGreen();
+                ptr++;
+                ptr[0] = image->GetMaskBlue();
+                ptr++;
+            }
+            else
+            {
+                ptr[0] = (unsigned char)TIFFGetR(raster[pos]);
+                ptr++;
+                ptr[0] = (unsigned char)TIFFGetG(raster[pos]);
+                ptr++;
+                ptr[0] = (unsigned char)TIFFGetB(raster[pos]);
+                ptr++;
+            }
+            pos++;
+        }
+        ptr -= 2*w*3; // subtract line we just added plus one line
     }
-    
+
     _TIFFfree( raster );
-    
+
     TIFFClose( tif );
-	
+
     image->SetMask( hasmask );
-    
+
     return TRUE;
 }
 
 int wxTIFFHandler::GetImageCount( wxInputStream& stream )
 {
     TIFF *tif = TIFFwxOpen( stream, "image", "r" );
-    
+
     if (!tif)
-	return 0;
+        return 0;
 
     int dircount = 0;  // according to the libtiff docs, dircount should be set to 1 here???
     do {
         dircount++;
     } while (TIFFReadDirectory(tif));
-    
+
     TIFFClose( tif );
-    
+
     return dircount;
 }
 
@@ -252,7 +253,7 @@ bool wxTIFFHandler::DoCanRead( wxInputStream& stream )
 
     stream.Read(&hdr, 2);
     stream.SeekI(-2, wxFromCurrent);
-    
+
     return ((hdr[0] == 0x49 && hdr[1] == 0x49) ||
             (hdr[0] == 0x4D && hdr[1] == 0x4D));
 }