X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/97cffad5942301d3b309087d1a7dec3d339d5c7c..b9697cb4104c115d39d10915b47e2381938020e0:/include/wx/rawbmp.h diff --git a/include/wx/rawbmp.h b/include/wx/rawbmp.h index 8901f1b2f3..ff353e3988 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 @@ -71,14 +76,8 @@ } */ -#ifdef __VISUALC__ - // VC++ gives an absolutely harmless warning for wxPixelData ctor - #pragma warning(push) - #pragma warning(disable: 4355) // 'this' used in initializer list -#endif - /* - 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. @@ -170,9 +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 @@ -309,9 +313,6 @@ struct wxPixelDataOut // the pixel format we use typedef wxImagePixelFormat PixelFormat; - // the type of the pixel components - typedef typename dummyPixelFormat::ChannelType ChannelType; - // the pixel data we're working with typedef wxPixelDataOut::wxPixelDataIn PixelData; @@ -406,11 +407,19 @@ struct wxPixelDataOut // data access // ----------- - // access to invidividual 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; } + // access to individual colour components + 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) + // + // 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 @@ -426,7 +435,7 @@ 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 @@ -434,7 +443,7 @@ 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); } @@ -443,7 +452,7 @@ 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()); } @@ -526,6 +535,12 @@ 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; } @@ -581,7 +596,7 @@ struct wxPixelDataOut // 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]; } @@ -590,6 +605,10 @@ 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; } @@ -631,11 +650,22 @@ 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 @@ -656,17 +686,21 @@ struct wxPixelDataOut } }; }; + #endif //wxUSE_GUI -#ifdef __VISUALC__ - // typedef-name 'foo' used as synonym for class-name 'bar' - // (VC++ gives this warning each time wxPixelData::Base is used but it - // doesn't make any sense here -- what's wrong with using typedef instead - // of class, this is what it is here for!) - #pragma warning(disable: 4097) -#endif // __VISUALC__ +// 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 > +template ::Format > class wxPixelData : public wxPixelDataOut::template wxPixelDataIn { @@ -685,7 +719,6 @@ public: } }; - // some "predefined" pixel data classes #if wxUSE_IMAGE typedef wxPixelData wxImagePixelData; @@ -713,13 +746,9 @@ typedef wxPixelData wxAlphaPixelData; partial template specialization then and neither VC6 nor VC7 provide it. */ template < class Image, class PixelFormat = wxPixelFormatFor > -struct wxPixelIterator : wxPixelData::Iterator +struct wxPixelIterator : public wxPixelData::Iterator { }; -#ifdef __VISUALC__ - #pragma warning(pop) -#endif - -#endif // _WX_RAWBMP_H_BASE_ - +#endif // wxHAS_RAW_BITMAP +#endif // _WX_RAWBMP_H_