X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/05b4b8ee882d86d1095efe72e5c866d80bb4cc95..66c2bf7b1d9326fb650acfaae22ec50528cfbf7c:/include/wx/rawbmp.h?ds=sidebyside

diff --git a/include/wx/rawbmp.h b/include/wx/rawbmp.h
index dd0485d8a8..adcf81f398 100644
--- a/include/wx/rawbmp.h
+++ b/include/wx/rawbmp.h
@@ -4,7 +4,6 @@
 // Author:      Eric Kidd, Vadim Zeitlin
 // Modified by:
 // Created:     10.03.03
-// RCS-ID:      $Id$
 // Copyright:   (c) 2002 Vadim Zeitlin <vadim@wxwidgets.org>
 // Licence:     wxWindows licence
 ///////////////////////////////////////////////////////////////////////////////
@@ -12,6 +11,10 @@
 #ifndef _WX_RAWBMP_H_
 #define _WX_RAWBMP_H_
 
+#include "wx/defs.h"
+
+#ifdef wxHAS_RAW_BITMAP
+
 #include "wx/image.h"
 #include "wx/bitmap.h"
 
@@ -168,6 +171,11 @@ typedef wxPixelFormat<unsigned char, 24, 0, 1, 2> wxImagePixelFormat;
     // Under GTK+ 2.X we use GdkPixbuf, which is standard RGB or RGBA
     typedef wxPixelFormat<unsigned char, 24, 0, 1, 2> wxNativePixelFormat;
 
+    #define wxPIXEL_FORMAT_ALPHA 3
+#elif defined(__WXPM__)
+    // Under PM, we can use standard RGB or RGBA
+    typedef wxPixelFormat<unsigned char, 24, 0, 1, 2> wxNativePixelFormat;
+
     #define wxPIXEL_FORMAT_ALPHA 3
 #elif defined(__WXDFB__)
     // Under DirectFB, RGB components are reversed, they're in BGR order
@@ -309,9 +317,6 @@ struct wxPixelDataOut<wxImage>
             // the pixel format we use
             typedef wxImagePixelFormat PixelFormat;
 
-            // the type of the pixel components
-            typedef typename PixelFormat::ChannelType ChannelType;
-
             // the pixel data we're working with
             typedef
                 wxPixelDataOut<wxImage>::wxPixelDataIn<PixelFormat> PixelData;
@@ -407,13 +412,17 @@ struct wxPixelDataOut<wxImage>
             // -----------
 
             // access to individual colour components
-            ChannelType& Red() { return m_pRGB[PixelFormat::RED]; }
-            ChannelType& Green() { return m_pRGB[PixelFormat::GREEN]; }
-            ChannelType& Blue() { return m_pRGB[PixelFormat::BLUE]; }
-            ChannelType& Alpha() { return *m_pAlpha; }
+            PixelFormat::ChannelType& Red() { return m_pRGB[PixelFormat::RED]; }
+            PixelFormat::ChannelType& Green() { return m_pRGB[PixelFormat::GREEN]; }
+            PixelFormat::ChannelType& Blue() { return m_pRGB[PixelFormat::BLUE]; }
+            PixelFormat::ChannelType& Alpha() { return *m_pAlpha; }
 
             // address the pixel contents directly (always RGB, without alpha)
-            typename PixelFormat::PixelType& Data()
+            //
+            // this can't be used to modify the image as assigning a 32bpp
+            // value to 24bpp pixel would overwrite an extra byte in the next
+            // pixel or beyond the end of image
+            const typename PixelFormat::PixelType& Data()
                 { return *(typename PixelFormat::PixelType *)m_pRGB; }
 
         // private: -- see comment in the beginning of the file
@@ -591,7 +600,7 @@ struct wxPixelDataOut<wxBitmap>
             // data access
             // -----------
 
-            // access to invidividual colour components
+            // access to individual colour components
             ChannelType& Red() { return m_ptr[PixelFormat::RED]; }
             ChannelType& Green() { return m_ptr[PixelFormat::GREEN]; }
             ChannelType& Blue() { return m_ptr[PixelFormat::BLUE]; }
@@ -600,6 +609,10 @@ struct wxPixelDataOut<wxBitmap>
             // address the pixel contents directly
             //
             // warning: the format is platform dependent
+            //
+            // warning 2: assigning to Data() only works correctly for 16bpp or
+            //            32bpp formats but using it for 24bpp ones overwrites
+            //            one extra byte and so can't be done
             typename PixelFormat::PixelType& Data()
                 { return *(typename PixelFormat::PixelType *)m_ptr; }
 
@@ -741,4 +754,5 @@ struct wxPixelIterator : public wxPixelData<Image, PixelFormat>::Iterator
 {
 };
 
+#endif // wxHAS_RAW_BITMAP
 #endif // _WX_RAWBMP_H_