X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/77df51f4fb0822bedc13263af625d50c15ba7abc..306f34a3681b0d8d87ac5fb3dfd76817f4a8ba7c:/include/wx/rawbmp.h diff --git a/include/wx/rawbmp.h b/include/wx/rawbmp.h index db4c014d15..0f25a78252 100644 --- a/include/wx/rawbmp.h +++ b/include/wx/rawbmp.h @@ -9,10 +9,15 @@ // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifndef _WX_RAWBMP_H_BASE_ -#define _WX_RAWBMP_H_BASE_ +#ifndef _WX_RAWBMP_H_ +#define _WX_RAWBMP_H_ + +#include "wx/defs.h" + +#ifdef wxHAS_RAW_BITMAP #include "wx/image.h" +#include "wx/bitmap.h" // ---------------------------------------------------------------------------- // Abstract Pixel API @@ -72,7 +77,7 @@ */ /* - Note: we do not use WXDLLEXPORT with classes in this file because VC++ has + Note: we do not use WXDLLIMPEXP_CORE with classes in this file because VC++ has problems with exporting inner class defined inside a specialization of a template class from a DLL. Besides, as all the methods are inline it's not really necessary to put them in DLL at all. @@ -164,9 +169,14 @@ typedef wxPixelFormat wxImagePixelFormat; #define wxPIXEL_FORMAT_ALPHA 3 #elif defined(__WXGTK__) - // Under GTK+ 2.X we use GdkPixbuf, which should be RGBA + // Under GTK+ 2.X we use GdkPixbuf, which is standard RGB or RGBA typedef wxPixelFormat wxNativePixelFormat; + #define wxPIXEL_FORMAT_ALPHA 3 +#elif defined(__WXDFB__) + // Under DirectFB, RGB components are reversed, they're in BGR order + typedef wxPixelFormat wxNativePixelFormat; + #define wxPIXEL_FORMAT_ALPHA 3 #endif @@ -304,7 +314,7 @@ struct wxPixelDataOut typedef wxImagePixelFormat PixelFormat; // the type of the pixel components - typedef typename dummyPixelFormat::ChannelType ChannelType; + typedef typename PixelFormat::ChannelType ChannelType; // the pixel data we're working with typedef @@ -400,12 +410,20 @@ struct wxPixelDataOut // data access // ----------- - // access to invidividual colour components + // 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; } + // address the pixel contents directly (always RGB, without alpha) + // + // 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 // pointer into RGB buffer @@ -420,7 +438,7 @@ struct wxPixelDataOut { m_width = image.GetWidth(); m_height = image.GetHeight(); - m_stride = Iterator::SizePixel * m_width; + m_stride = Iterator::PixelFormat::SizePixel * m_width; } // initializes us with the given region of the specified image @@ -428,7 +446,7 @@ struct wxPixelDataOut const wxPoint& pt, const wxSize& sz) : m_image(image), m_pixels(image) { - m_stride = Iterator::SizePixel * m_width; + m_stride = Iterator::PixelFormat::SizePixel * m_width; InitRect(pt, sz); } @@ -437,7 +455,7 @@ struct wxPixelDataOut wxPixelDataIn(ImageType& image, const wxRect& rect) : m_image(image), m_pixels(image) { - m_stride = Iterator::SizePixel * m_width; + m_stride = Iterator::PixelFormat::SizePixel * m_width; InitRect(rect.GetPosition(), rect.GetSize()); } @@ -520,6 +538,12 @@ struct wxPixelDataOut bmp.GetRawData(data, PixelFormat::BitsPerPixel); } + // default constructor + Iterator() + { + m_ptr = NULL; + } + // return true if this iterator is valid bool IsOk() const { return m_ptr != NULL; } @@ -584,6 +608,10 @@ struct wxPixelDataOut // 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; } @@ -625,11 +653,22 @@ struct wxPixelDataOut // dtor unlocks the bitmap ~wxPixelDataIn() { - m_bmp.UngetRawData(*this); + if ( m_pixels.IsOk() ) + { +#if defined(__WXMSW__) || defined(__WXMAC__) + // this is a hack to mark wxBitmap as using alpha channel + if ( Format::HasAlpha ) + m_bmp.UseAlpha(); +#endif + m_bmp.UngetRawData(*this); + } + // else: don't call UngetRawData() if GetRawData() failed } - // call this to indicate that we should use the alpha channel - void UseAlpha() { m_bmp.UseAlpha(); } +#if WXWIN_COMPATIBILITY_2_8 + // not needed anymore, calls to it should be simply removed + wxDEPRECATED_INLINE( void UseAlpha(), wxEMPTY_PARAMETER_VALUE ) +#endif // private: -- see comment in the beginning of the file @@ -650,9 +689,21 @@ struct wxPixelDataOut } }; }; + #endif //wxUSE_GUI -template > +// FIXME-VC6: VC6 doesn't like typename in default template parameters while +// it is necessary with standard-conforming compilers, remove this +// #define and just use typename when we drop VC6 support +#if defined(__VISUALC__) && !wxCHECK_VISUALC_VERSION(7) + #define wxTYPENAME_IN_TEMPLATE_DEFAULT_PARAM +#else + #define wxTYPENAME_IN_TEMPLATE_DEFAULT_PARAM typename +#endif + +template ::Format > class wxPixelData : public wxPixelDataOut::template wxPixelDataIn { @@ -671,7 +722,6 @@ public: } }; - // some "predefined" pixel data classes #if wxUSE_IMAGE typedef wxPixelData wxImagePixelData; @@ -703,5 +753,5 @@ struct wxPixelIterator : public wxPixelData::Iterator { }; -#endif // _WX_RAWBMP_H_BASE_ - +#endif // wxHAS_RAW_BITMAP +#endif // _WX_RAWBMP_H_