64 bit clean implementation

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

diff --git a/src/common/image.cpp b/src/common/image.cpp
index be43304ba96464fd14a550bdf7d67056c8526570..8c329c38f5ba8f9dd9315ad5a2965e403f88ce29 100644 (file)
--- a/src/common/image.cpp
+++ b/src/common/image.cpp
@@ -39,12 +39,12 @@
 #define HAS_FILE_STREAMS (wxUSE_STREAMS && (wxUSE_FILE || wxUSE_FFILE))
 
 #if HAS_FILE_STREAMS
 #define HAS_FILE_STREAMS (wxUSE_STREAMS && (wxUSE_FILE || wxUSE_FFILE))
 
 #if HAS_FILE_STREAMS

-    #if wxUSE_FILE
-        typedef wxFileInputStream wxImageFileInputStream;
-        typedef wxFileOutputStream wxImageFileOutputStream;
-    #elif wxUSE_FFILE
+    #if wxUSE_FFILE

         typedef wxFFileInputStream wxImageFileInputStream;
         typedef wxFFileOutputStream wxImageFileOutputStream;
         typedef wxFFileInputStream wxImageFileInputStream;
         typedef wxFFileOutputStream wxImageFileOutputStream;

+    #elif wxUSE_FILE
+        typedef wxFileInputStream wxImageFileInputStream;
+        typedef wxFileOutputStream wxImageFileOutputStream;

     #endif // wxUSE_FILE/wxUSE_FFILE
 #endif // HAS_FILE_STREAMS
 
     #endif // wxUSE_FILE/wxUSE_FFILE
 #endif // HAS_FILE_STREAMS
 


@@ -675,13 +675,13 @@ wxImage wxImage::ResampleBicubic(int width, int height) const
     for ( int dsty = 0; dsty < height; dsty++ )
     {
         // We need to calculate the source pixel to interpolate from - Y-axis
     for ( int dsty = 0; dsty < height; dsty++ )
     {
         // We need to calculate the source pixel to interpolate from - Y-axis

-        double srcpixy = dsty * M_IMGDATA->m_height / height;
+        double srcpixy = double(dsty * M_IMGDATA->m_height) / height;

         double dy = srcpixy - (int)srcpixy;
 
         for ( int dstx = 0; dstx < width; dstx++ )
         {
             // X-axis of pixel to interpolate from
         double dy = srcpixy - (int)srcpixy;
 
         for ( int dstx = 0; dstx < width; dstx++ )
         {
             // X-axis of pixel to interpolate from

-            double srcpixx = dstx * M_IMGDATA->m_width / width;
+            double srcpixx = double(dstx * M_IMGDATA->m_width) / width;

             double dx = srcpixx - (int)srcpixx;
 
             // Sums for each color channel
             double dx = srcpixx - (int)srcpixx;
 
             // Sums for each color channel


@@ -743,7 +743,7 @@ wxImage wxImage::ResampleBicubic(int width, int height) const
 }
 
 // Blur in the horizontal direction
 }
 
 // Blur in the horizontal direction

-wxImage wxImage::BlurHorizontal(int blurRadius)
+wxImage wxImage::BlurHorizontal(int blurRadius) const

 {
     wxImage ret_image;
     ret_image.Create(M_IMGDATA->m_width, M_IMGDATA->m_height, false);
 {
     wxImage ret_image;
     ret_image.Create(M_IMGDATA->m_width, M_IMGDATA->m_height, false);


@@ -754,20 +754,17 @@ wxImage wxImage::BlurHorizontal(int blurRadius)
     unsigned char* dst_alpha = NULL;
 
     // Check for a mask or alpha
     unsigned char* dst_alpha = NULL;
 
     // Check for a mask or alpha

-    if ( M_IMGDATA->m_hasMask )
+    if ( src_alpha )
+    {
+        ret_image.SetAlpha();
+        dst_alpha = ret_image.GetAlpha();
+    }
+    else if ( M_IMGDATA->m_hasMask )

     {
         ret_image.SetMaskColour(M_IMGDATA->m_maskRed,
                                 M_IMGDATA->m_maskGreen,
                                 M_IMGDATA->m_maskBlue);
     }
     {
         ret_image.SetMaskColour(M_IMGDATA->m_maskRed,
                                 M_IMGDATA->m_maskGreen,
                                 M_IMGDATA->m_maskBlue);
     }

-    else
-    {
-        if ( src_alpha )
-        {
-            ret_image.SetAlpha();
-            dst_alpha = ret_image.GetAlpha();
-        }
-    }

 
     // number of pixels we average over
     const int blurArea = blurRadius*2 + 1;
 
     // number of pixels we average over
     const int blurArea = blurRadius*2 + 1;


@@ -861,7 +858,7 @@ wxImage wxImage::BlurHorizontal(int blurRadius)
 }
 
 // Blur in the vertical direction
 }
 
 // Blur in the vertical direction

-wxImage wxImage::BlurVertical(int blurRadius)
+wxImage wxImage::BlurVertical(int blurRadius) const

 {
     wxImage ret_image;
     ret_image.Create(M_IMGDATA->m_width, M_IMGDATA->m_height, false);
 {
     wxImage ret_image;
     ret_image.Create(M_IMGDATA->m_width, M_IMGDATA->m_height, false);


@@ -872,20 +869,17 @@ wxImage wxImage::BlurVertical(int blurRadius)
     unsigned char* dst_alpha = NULL;
 
     // Check for a mask or alpha
     unsigned char* dst_alpha = NULL;
 
     // Check for a mask or alpha

-    if ( M_IMGDATA->m_hasMask )
+    if ( src_alpha )
+    {
+        ret_image.SetAlpha();
+        dst_alpha = ret_image.GetAlpha();
+    }
+    else if ( M_IMGDATA->m_hasMask )

     {
         ret_image.SetMaskColour(M_IMGDATA->m_maskRed,
                                 M_IMGDATA->m_maskGreen,
                                 M_IMGDATA->m_maskBlue);
     }
     {
         ret_image.SetMaskColour(M_IMGDATA->m_maskRed,
                                 M_IMGDATA->m_maskGreen,
                                 M_IMGDATA->m_maskBlue);
     }

-    else
-    {
-        if ( src_alpha )
-        {
-            ret_image.SetAlpha();
-            dst_alpha = ret_image.GetAlpha();
-        }
-    }

 
     // number of pixels we average over
     const int blurArea = blurRadius*2 + 1;
 
     // number of pixels we average over
     const int blurArea = blurRadius*2 + 1;


@@ -979,7 +973,7 @@ wxImage wxImage::BlurVertical(int blurRadius)
 }
 
 // The new blur function
 }
 
 // The new blur function

-wxImage wxImage::Blur(int blurRadius)
+wxImage wxImage::Blur(int blurRadius) const

 {
     wxImage ret_image;
     ret_image.Create(M_IMGDATA->m_width, M_IMGDATA->m_height, false);
 {
     wxImage ret_image;
     ret_image.Create(M_IMGDATA->m_width, M_IMGDATA->m_height, false);


@@ -1671,7 +1665,9 @@ void wxImage::SetAlpha( unsigned char *alpha, bool static_data )
         alpha = (unsigned char *)malloc(M_IMGDATA->m_width*M_IMGDATA->m_height);
     }
 
         alpha = (unsigned char *)malloc(M_IMGDATA->m_width*M_IMGDATA->m_height);
     }
 

-    free(M_IMGDATA->m_alpha);
+    if( !M_IMGDATA->m_staticAlpha )
+        free(M_IMGDATA->m_alpha);
+

     M_IMGDATA->m_alpha = alpha;
     M_IMGDATA->m_staticAlpha = static_data;
 }
     M_IMGDATA->m_alpha = alpha;
     M_IMGDATA->m_staticAlpha = static_data;
 }


@@ -1904,8 +1900,11 @@ bool wxImage::ConvertAlphaToMask(unsigned char threshold)
         }
     }
 
         }
     }
 

-    free(M_IMGDATA->m_alpha);
+    if( !M_IMGDATA->m_staticAlpha )
+        free(M_IMGDATA->m_alpha);
+

     M_IMGDATA->m_alpha = NULL;
     M_IMGDATA->m_alpha = NULL;

+    M_IMGDATA->m_staticAlpha = false;

 
     return true;
 }
 
     return true;
 }


@@ -2237,7 +2236,7 @@ bool wxImage::LoadFile( wxInputStream& stream, const wxString& mimetype, int ind
 
     if (stream.IsSeekable() && !handler->CanRead(stream))
     {
 
     if (stream.IsSeekable() && !handler->CanRead(stream))
     {

-        wxLogError(_("Image file is not of type %s."), (const wxChar*) mimetype);
+        wxLogError(_("Image file is not of type %s."), mimetype);

         return false;
     }
     else
         return false;
     }
     else


@@ -2339,7 +2338,7 @@ wxImageHandler *wxImage::FindHandler( const wxString& name )
 
         node = node->GetNext();
     }
 
         node = node->GetNext();
     }

-    return 0;
+    return NULL;

 }
 
 wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType )
 }
 
 wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType )


@@ -2353,7 +2352,7 @@ wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType
             return handler;
         node = node->GetNext();
     }
             return handler;
         node = node->GetNext();
     }

-    return 0;
+    return NULL;

 }
 
 wxImageHandler *wxImage::FindHandler( long bitmapType )
 }
 
 wxImageHandler *wxImage::FindHandler( long bitmapType )


@@ -2365,7 +2364,7 @@ wxImageHandler *wxImage::FindHandler( long bitmapType )
         if (handler->GetType() == bitmapType) return handler;
         node = node->GetNext();
     }
         if (handler->GetType() == bitmapType) return handler;
         node = node->GetNext();
     }

-    return 0;
+    return NULL;

 }
 
 wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype )
 }
 
 wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype )


@@ -2377,7 +2376,7 @@ wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype )
         if (handler->GetMimeType().IsSameAs(mimetype, false)) return handler;
         node = node->GetNext();
     }
         if (handler->GetMimeType().IsSameAs(mimetype, false)) return handler;
         node = node->GetNext();
     }

-    return 0;
+    return NULL;

 }
 
 void wxImage::InitStandardHandlers()
 }
 
 void wxImage::InitStandardHandlers()


@@ -2651,6 +2650,42 @@ bool wxImageHandler::CallDoCanRead(wxInputStream& stream)
 
 #endif // wxUSE_STREAMS
 
 
 #endif // wxUSE_STREAMS
 

+/* static */
+wxImageResolution
+wxImageHandler::GetResolutionFromOptions(const wxImage& image, int *x, int *y)
+{
+    wxCHECK_MSG( x && y, wxIMAGE_RESOLUTION_NONE, _T("NULL pointer") );
+
+    if ( image.HasOption(wxIMAGE_OPTION_RESOLUTIONX) &&
+         image.HasOption(wxIMAGE_OPTION_RESOLUTIONY) )
+    {
+        *x = image.GetOptionInt(wxIMAGE_OPTION_RESOLUTIONX);
+        *y = image.GetOptionInt(wxIMAGE_OPTION_RESOLUTIONY);
+    }
+    else if ( image.HasOption(wxIMAGE_OPTION_RESOLUTION) )
+    {
+        *x =
+        *y = image.GetOptionInt(wxIMAGE_OPTION_RESOLUTION);
+    }
+    else // no resolution options specified
+    {
+        *x =
+        *y = 0;
+
+        return wxIMAGE_RESOLUTION_NONE;
+    }
+
+    // get the resolution unit too
+    int resUnit = image.GetOptionInt(wxIMAGE_OPTION_RESOLUTIONUNIT);
+    if ( !resUnit )
+    {
+        // this is the default
+        resUnit = wxIMAGE_RESOLUTION_INCHES;
+    }
+
+    return (wxImageResolution)resUnit;
+}
+

 // ----------------------------------------------------------------------------
 // image histogram stuff
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // image histogram stuff
 // ----------------------------------------------------------------------------


@@ -3095,8 +3130,8 @@ class wxImageModule: public wxModule
 DECLARE_DYNAMIC_CLASS(wxImageModule)
 public:
     wxImageModule() {}
 DECLARE_DYNAMIC_CLASS(wxImageModule)
 public:
     wxImageModule() {}

-    bool OnInit() { wxImage::InitStandardHandlers(); return true; };
-    void OnExit() { wxImage::CleanUpHandlers(); };
+    bool OnInit() { wxImage::InitStandardHandlers(); return true; }
+    void OnExit() { wxImage::CleanUpHandlers(); }

 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxImageModule, wxModule)
 };
 
 IMPLEMENT_DYNAMIC_CLASS(wxImageModule, wxModule)