X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e40298d54ecd5b109222a7c60aa2ef084a304d69..f80ffb32eb597f7b051ed1705c72b2934eb2eb30:/src/mac/carbon/bitmap.cpp diff --git a/src/mac/carbon/bitmap.cpp b/src/mac/carbon/bitmap.cpp index a60d47d2ed..67ec567512 100644 --- a/src/mac/carbon/bitmap.cpp +++ b/src/mac/carbon/bitmap.cpp @@ -21,9 +21,11 @@ #include "wx/image.h" #include "wx/xpmdecod.h" +#include "wx/rawbmp.h" + IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject) IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject) -IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject ) +IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject ) #ifdef __DARWIN__ #include @@ -36,7 +38,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject ) CTabHandle wxMacCreateColorTable( int numColors ) { CTabHandle newColors; /* Handle to the new color table */ - + /* Allocate memory for the color table */ newColors = (CTabHandle)NewHandleClear( sizeof (ColorTable) + sizeof (ColorSpec) * (numColors - 1) ); @@ -51,7 +53,7 @@ CTabHandle wxMacCreateColorTable( int numColors ) return newColors ; } -void wxMacDestroyColorTable( CTabHandle colors ) +void wxMacDestroyColorTable( CTabHandle colors ) { DisposeHandle( (Handle) colors ) ; } @@ -69,12 +71,12 @@ GWorldPtr wxMacCreateGWorld( int width , int height , int depth ) OSErr err = noErr ; GWorldPtr port ; Rect rect = { 0 , 0 , height , width } ; - + if ( depth < 0 ) { - depth = wxDisplayDepth() ; + depth = wxDisplayDepth() ; } - + err = NewGWorld( &port , depth , &rect , NULL , NULL , 0 ) ; if ( err == noErr ) { @@ -197,17 +199,17 @@ CIconHandle wxMacCreateCIcon(GWorldPtr image , GWorldPtr mask , short dstDepth , (**icon).iconPMap.baseAddr = *(**icon).iconData ; LockPixels(GetGWorldPixMap(image)); - + CopyBits(GetPortBitMapForCopyBits(image), (BitMapPtr)&((**icon).iconPMap), &imageBounds, &imageBounds, srcCopy | ditherCopy, nil); - - + + UnlockPixels(GetGWorldPixMap(image)); HUnlock( (**icon).iconData ) ; - + (**icon).iconMask.rowBytes = iconSize / 8 ; (**icon).iconMask.bounds = frame ; @@ -238,13 +240,13 @@ CIconHandle wxMacCreateCIcon(GWorldPtr image , GWorldPtr mask , short dstDepth , &(**icon).iconMask , &r , &r, srcCopy , nil ) ; UnlockPixels(GetGWorldPixMap(image)); } - + (**icon).iconMask.baseAddr = NULL ; (**icon).iconBMap.baseAddr = NULL ; (**icon).iconPMap.baseAddr = NULL ; HUnlock((Handle)icon) ; SetGWorld(saveWorld,saveHandle); - + return icon; } @@ -253,7 +255,7 @@ PicHandle wxMacCreatePict(GWorldPtr wp, GWorldPtr mask) CGrafPtr origPort ; GDHandle origDev ; - PicHandle pict; + PicHandle pict; RGBColor white = { 0xffff ,0xffff , 0xffff } ; RGBColor black = { 0x0000 ,0x0000 , 0x0000 } ; @@ -269,38 +271,38 @@ PicHandle wxMacCreatePict(GWorldPtr wp, GWorldPtr mask) BitMapToRegion( clipRgn , (BitMap*) *GetGWorldPixMap( mask ) ) ; UnlockPixels( GetGWorldPixMap( mask ) ) ; } - + SetGWorld( wp , NULL ) ; Rect portRect ; if ( clipRgn ) - GetRegionBounds( clipRgn , &portRect ) ; + GetRegionBounds( clipRgn , &portRect ) ; else GetPortBounds( wp , &portRect ) ; - pict = OpenPicture(&portRect); - if(pict) + pict = OpenPicture(&portRect); + if(pict) { RGBForeColor( &black ) ; RGBBackColor( &white ) ; - + if ( clipRgn ) SetClip( clipRgn ) ; - + LockPixels( GetGWorldPixMap( wp ) ) ; - CopyBits(GetPortBitMapForCopyBits(wp), - GetPortBitMapForCopyBits(wp), - &portRect, - &portRect, - srcCopy,clipRgn); + CopyBits(GetPortBitMapForCopyBits(wp), + GetPortBitMapForCopyBits(wp), + &portRect, + &portRect, + srcCopy,clipRgn); UnlockPixels( GetGWorldPixMap( wp ) ) ; - ClosePicture(); + ClosePicture(); } SetGWorld( origPort , origDev ) ; if ( clipRgn ) DisposeRgn( clipRgn ) ; - return pict; + return pict; } -void wxMacCreateBitmapButton( ControlButtonContentInfo*info , const wxBitmap& bitmap , int forceType ) +void wxMacCreateBitmapButton( ControlButtonContentInfo*info , const wxBitmap& bitmap , int forceType ) { memset( info , 0 , sizeof(ControlButtonContentInfo) ) ; if ( bitmap.Ok() ) @@ -308,7 +310,7 @@ void wxMacCreateBitmapButton( ControlButtonContentInfo*info , const wxBitmap& bi wxBitmapRefData * bmap = (wxBitmapRefData*) ( bitmap.GetRefData()) ; if ( bmap == NULL ) return ; - + if ( bmap->m_bitmapType == kMacBitmapTypePict ) { info->contentType = kControlContentPictHandle ; @@ -320,7 +322,7 @@ void wxMacCreateBitmapButton( ControlButtonContentInfo*info , const wxBitmap& bi { info->contentType = kControlContentCIconHandle ; if ( bitmap.GetMask() ) - { + { info->u.cIconHandle = wxMacCreateCIcon( MAC_WXHBITMAP(bmap->m_hBitmap) , MAC_WXHBITMAP(bitmap.GetMask()->GetMaskBitmap()) , 8 , bmap->m_width ) ; } @@ -364,6 +366,7 @@ wxBitmapRefData::wxBitmapRefData() m_hPict = NULL ; m_hIcon = NULL ; m_bitmapType = kMacBitmapTypeUnknownType ; + m_hasAlpha = false; } // TODO move this to a public function of Bitmap Ref @@ -371,7 +374,7 @@ static void DisposeBitmapRefData(wxBitmapRefData *data) { if ( !data ) return ; - + switch (data->m_bitmapType) { case kMacBitmapTypePict : @@ -398,12 +401,12 @@ static void DisposeBitmapRefData(wxBitmapRefData *data) DisposeCIcon( MAC_WXHICON(data->m_hIcon) ) ; data->m_hIcon = NULL ; } - + default : // unkown type ? break ; } - + if (data->m_bitmapMask) { delete data->m_bitmapMask; @@ -442,29 +445,29 @@ wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits if ( no_bits == 1 ) { M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ; - MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) = wxMacCreateGWorld( the_width , the_height , no_bits ) ; + M_BITMAPDATA->m_hBitmap = wxMacCreateGWorld( the_width , the_height , no_bits ) ; M_BITMAPDATA->m_ok = (MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) != NULL ) ; - + CGrafPtr origPort ; GDHandle origDevice ; - + GetGWorld( &origPort , &origDevice ) ; SetGWorld( MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) , NULL ) ; LockPixels( GetGWorldPixMap( MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) ) ) ; - + // bits is a char array - + unsigned char* linestart = (unsigned char*) bits ; int linesize = ( the_width / (sizeof(unsigned char) * 8)) ; if ( the_width % (sizeof(unsigned char) * 8) ) { linesize += sizeof(unsigned char); } - - RGBColor colors[2] = { + + RGBColor colors[2] = { { 0xFFFF , 0xFFFF , 0xFFFF } , - { 0, 0 , 0 } + { 0, 0 , 0 } } ; - + for ( int y = 0 ; y < the_height ; ++y , linestart += linesize ) { for ( int x = 0 ; x < the_width ; ++x ) @@ -483,7 +486,7 @@ wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits } } UnlockPixels( GetGWorldPixMap( MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap) ) ) ; - + SetGWorld( origPort , origDevice ) ; } else @@ -512,8 +515,8 @@ bool wxBitmap::CreateFromXpm(const char **bits) wxCHECK_MSG( bits != NULL, FALSE, wxT("invalid bitmap data") ) wxXPMDecoder decoder; wxImage img = decoder.ReadData(bits); - wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") ) - *this = wxBitmap(img); + wxCHECK_MSG( img.Ok(), FALSE, wxT("invalid bitmap data") ) + *this = wxBitmap(img); return TRUE; } @@ -535,7 +538,7 @@ wxBitmap wxBitmap::GetSubBitmap(const wxRect &rect) const (rect.y+rect.height <= GetHeight()), wxNullBitmap, wxT("invalid bitmap or bitmap region") ); - + wxBitmap ret( rect.width, rect.height, GetDepth() ); wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") ); @@ -548,7 +551,9 @@ wxBitmap wxBitmap::GetSubBitmap(const wxRect &rect) const wxBitmapRefData *ref = (wxBitmapRefData *)ret.GetRefData(); ref->m_numColors = M_BITMAPDATA->m_numColors; - ref->m_bitmapPalette = M_BITMAPDATA->m_bitmapPalette; +#if wxUSE_PALETTE + ref->m_bitmapPalette = M_BITMAPDATA->m_bitmapPalette; +#endif // wxUSE_PALETTE ref->m_bitmapType = M_BITMAPDATA->m_bitmapType; // Copy sub region of this bitmap @@ -565,7 +570,7 @@ wxBitmap wxBitmap::GetSubBitmap(const wxRect &rect) const RGBColor color; mask = (GWorldPtr) GetMask()->GetMaskBitmap(); - submask = wxMacCreateGWorld(rect.width, rect.height, 1); + submask = wxMacCreateGWorld(rect.width, rect.height, GetMask()->GetDepth() ); LockPixels(GetGWorldPixMap(mask)); LockPixels(GetGWorldPixMap(submask)); @@ -644,7 +649,7 @@ void wxBitmap::SetHBITMAP(WXHBITMAP bmp) m_refData = new wxBitmapRefData; else DisposeBitmapRefData( M_BITMAPDATA ) ; - + M_BITMAPDATA->m_bitmapType = kMacBitmapTypeGrafWorld ; M_BITMAPDATA->m_hBitmap = bmp ; M_BITMAPDATA->m_ok = ( M_BITMAPDATA->m_hBitmap != NULL ) ; @@ -656,7 +661,7 @@ void wxBitmap::SetHICON(WXHICON ico) m_refData = new wxBitmapRefData; else DisposeBitmapRefData( M_BITMAPDATA ) ; - + M_BITMAPDATA->m_bitmapType = kMacBitmapTypeIcon ; M_BITMAPDATA->m_hIcon = ico ; M_BITMAPDATA->m_ok = ( M_BITMAPDATA->m_hIcon != NULL ) ; @@ -668,7 +673,7 @@ void wxBitmap::SetPict(WXHMETAFILE pict) m_refData = new wxBitmapRefData; else DisposeBitmapRefData( M_BITMAPDATA ) ; - + M_BITMAPDATA->m_bitmapType = kMacBitmapTypePict ; M_BITMAPDATA->m_hPict = pict ; M_BITMAPDATA->m_ok = ( M_BITMAPDATA->m_hPict != NULL ) ; @@ -694,7 +699,7 @@ bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type) return true; } } - wxLogWarning("no bitmap handler for type %d defined.", type); + wxLogWarning(wxT("no bitmap handler for type %d defined."), type); return false; } @@ -707,7 +712,7 @@ bool wxBitmap::Create(void *data, wxBitmapType type, int width, int height, int wxBitmapHandler *handler = FindHandler(type); if ( handler == NULL ) { - wxLogWarning("no bitmap handler for type %d defined.", type); + wxLogWarning(wxT("no bitmap handler for type %d defined."), type); return FALSE; } @@ -718,10 +723,9 @@ bool wxBitmap::Create(void *data, wxBitmapType type, int width, int height, int wxBitmap::wxBitmap(const wxImage& image, int depth) { wxCHECK_RET( image.Ok(), wxT("invalid image") ) - wxCHECK_RET( depth == -1, wxT("invalid bitmap depth") ) m_refData = new wxBitmapRefData(); - + // width and height of the device-dependent bitmap int width = image.GetWidth(); int height = image.GetHeight(); @@ -729,7 +733,7 @@ wxBitmap::wxBitmap(const wxImage& image, int depth) // Create picture Create( width , height , 32 ) ; - + CGrafPtr origPort ; GDHandle origDevice ; @@ -738,7 +742,7 @@ wxBitmap::wxBitmap(const wxImage& image, int depth) GetGWorld( &origPort , &origDevice ) ; SetGWorld( (GWorldPtr) GetHBITMAP() , NULL ) ; - + // Render image register unsigned char* data = image.GetData(); char* destinationBase = GetPixBaseAddr( pixMap ); @@ -748,17 +752,43 @@ wxBitmap::wxBitmap(const wxImage& image, int depth) for (int x = 0; x < width; x++) { *destination++ = 0 ; - *destination++ = *data++ ; - *destination++ = *data++ ; - *destination++ = *data++ ; + *destination++ = *data++ ; + *destination++ = *data++ ; + *destination++ = *data++ ; } - destinationBase += ((**pixMap).rowBytes & 0x7fff); - destination = (unsigned char*) destinationBase ; - } - if ( image.HasMask() ) + destinationBase += ((**pixMap).rowBytes & 0x7fff); + destination = (unsigned char*) destinationBase ; + } + if ( image.HasAlpha() ) + { + unsigned char *alpha = image.GetAlpha(); + + wxColour maskcolor(image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue()); + RGBColor color ; + wxBitmap maskBitmap ; + + maskBitmap.Create( width, height, 24); + LockPixels( GetGWorldPixMap( (GWorldPtr) maskBitmap.GetHBITMAP()) ); + SetGWorld( (GWorldPtr) maskBitmap.GetHBITMAP(), NULL); + + for (int y = 0; y < height; y++) + { + for (int x = 0; x < width; x++) + { + memset( &color , 255 - *alpha , sizeof( color ) ); + SetCPixel(x,y, &color); + + alpha += 1 ; + } + } // for height + SetGWorld( (GWorldPtr) GetHBITMAP(), NULL); + SetMask(new wxMask( maskBitmap )); + UnlockPixels( GetGWorldPixMap( (GWorldPtr) maskBitmap.GetHBITMAP()) ); + } + else if ( image.HasMask() ) { - data = image.GetData(); - + data = image.GetData(); + wxColour maskcolor(image.GetMaskRed(), image.GetMaskGreen(), image.GetMaskBlue()); RGBColor white = { 0xffff, 0xffff, 0xffff }; RGBColor black = { 0 , 0 , 0 }; @@ -777,7 +807,7 @@ wxBitmap::wxBitmap(const wxImage& image, int depth) SetCPixel(x,y, &white); } else { - SetCPixel(x,y, &black); + SetCPixel(x,y, &black); } data += 3 ; } @@ -786,7 +816,7 @@ wxBitmap::wxBitmap(const wxImage& image, int depth) SetMask(new wxMask( maskBitmap )); UnlockPixels( GetGWorldPixMap( (GWorldPtr) maskBitmap.GetHBITMAP()) ); } - + UnlockPixels( GetGWorldPixMap( (GWorldPtr) GetHBITMAP()) ); SetGWorld( origPort, origDevice ); } @@ -794,7 +824,7 @@ wxBitmap::wxBitmap(const wxImage& image, int depth) wxImage wxBitmap::ConvertToImage() const { wxImage image; - + wxCHECK_MSG( Ok(), wxNullImage, wxT("invalid bitmap") ); // create an wxImage object @@ -835,7 +865,7 @@ wxImage wxBitmap::ConvertToImage() const { ::PlotCIconHandle( &bitmaprect , atNone , ttNone , MAC_WXHICON(GetHICON()) ) ; maskRgn = NewRgn() ; - BitMapToRegion( maskRgn , &(**(MAC_WXHICON(GetHICON()))).iconMask ) ; + BitMapToRegion( maskRgn , &(**(MAC_WXHICON(GetHICON()))).iconMask ) ; } else ::DrawPicture( (PicHandle) GetPict(), &bitmaprect ) ; @@ -854,7 +884,7 @@ wxImage wxBitmap::ConvertToImage() const data[index + 1] = g; data[index + 2] = b; if ( maskRgn ) - { + { Point pt ; pt.h = xx ; pt.v = yy ; @@ -917,8 +947,8 @@ bool wxBitmap::SaveFile(const wxString& filename, wxBitmapType type, return image.SaveFile(filename, type); } - - wxLogWarning("no bitmap handler for type %d defined.", type); + + wxLogWarning(wxT("no bitmap handler for type %d defined."), type); return false; } @@ -1002,6 +1032,7 @@ void wxBitmap::SetOk(bool isOk) M_BITMAPDATA->m_ok = isOk; } +#if wxUSE_PALETTE wxPalette *wxBitmap::GetPalette() const { wxCHECK_MSG( Ok(), NULL, wxT("Invalid bitmap GetPalette()") ); @@ -1016,6 +1047,7 @@ void wxBitmap::SetPalette(const wxPalette& palette) M_BITMAPDATA->m_bitmapPalette = palette ; } +#endif // wxUSE_PALETTE void wxBitmap::SetMask(wxMask *mask) { @@ -1023,8 +1055,7 @@ void wxBitmap::SetMask(wxMask *mask) m_refData = new wxBitmapRefData; // Remove existing mask if there is one. - if (M_BITMAPDATA->m_bitmapMask) - delete M_BITMAPDATA->m_bitmapMask; + delete M_BITMAPDATA->m_bitmapMask; M_BITMAPDATA->m_bitmapMask = mask ; } @@ -1039,7 +1070,7 @@ WXHBITMAP wxBitmap::GetHBITMAP() const WXHMETAFILE wxBitmap::GetPict( bool *created ) const { wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") ); - + PicHandle picture = NULL ; // This is the returned picture if ( created ) (*created) = false ; @@ -1122,10 +1153,8 @@ bool wxMask::Create(const wxBitmap& bitmap) wxCHECK_MSG( bitmap.Ok(), false, wxT("Invalid bitmap")); - wxCHECK_MSG(bitmap.GetDepth() == 1, false, - wxT("Cannot create mask from colour bitmap")); - - m_maskBitmap = wxMacCreateGWorld(bitmap.GetWidth(), bitmap.GetHeight(), 1); + m_depth = bitmap.GetDepth() ; + m_maskBitmap = wxMacCreateGWorld(bitmap.GetWidth(), bitmap.GetHeight(), bitmap.GetDepth() ); Rect rect = { 0,0, bitmap.GetHeight(), bitmap.GetWidth() }; LockPixels( GetGWorldPixMap( (GWorldPtr) m_maskBitmap) ); @@ -1159,11 +1188,12 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) } wxCHECK_MSG( bitmap.GetBitmapType() == kMacBitmapTypeGrafWorld, false, wxT("Cannot create mask from this bitmap type (TODO)")); - // other types would require a temporary bitmap. not yet implemented - + // other types would require a temporary bitmap. not yet implemented + wxCHECK_MSG( bitmap.Ok(), false, wxT("Illigal bitmap")); - m_maskBitmap = wxMacCreateGWorld( bitmap.GetWidth() , bitmap.GetHeight() , 1 ); + m_maskBitmap = wxMacCreateGWorld( bitmap.GetWidth() , bitmap.GetHeight() , 1 ); + m_depth = 1 ; LockPixels( GetGWorldPixMap( (GWorldPtr) m_maskBitmap ) ); LockPixels( GetGWorldPixMap( (GWorldPtr) bitmap.GetHBITMAP() ) ); RGBColor maskColor = MAC_WXCOLORREF(colour.GetPixel()); @@ -1176,12 +1206,12 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) RGBColor colors[2] = { { 0xFFFF, 0xFFFF, 0xFFFF }, { 0, 0, 0 }}; - + GetGWorld( &origPort , &origDevice ) ; for (int w = 0; w < bitmap.GetWidth(); w++) { for (int h = 0; h < bitmap.GetHeight(); h++) - { + { SetGWorld( (GWorldPtr) bitmap.GetHBITMAP(), NULL ) ; GetCPixel( w , h , &col ) ; SetGWorld( (GWorldPtr) m_maskBitmap , NULL ) ; @@ -1257,8 +1287,8 @@ class WXDLLEXPORT wxPICTResourceHandler: public wxBitmapHandler public: inline wxPICTResourceHandler() { - m_name = "Macintosh Pict resource"; - m_extension = ""; + m_name = wxT("Macintosh Pict resource"); + m_extension = wxEmptyString; m_type = wxBITMAP_TYPE_PICT_RESOURCE; }; @@ -1271,26 +1301,20 @@ bool wxPICTResourceHandler::LoadFile(wxBitmap *bitmap, const wxString& name, lo int desiredWidth, int desiredHeight) { Str255 theName ; - -#if TARGET_CARBON - c2pstrcpy( (StringPtr) theName , name ) ; -#else - strcpy( (char *) theName , name ) ; - c2pstr( (char *)theName ) ; -#endif - + wxMacStringToPascal( name , theName ) ; + PicHandle thePict = (PicHandle ) GetNamedResource( 'PICT' , theName ) ; if ( thePict ) { PictInfo theInfo ; - + GetPictInfo( thePict , &theInfo , 0 , 0 , systemMethod , 0 ) ; DetachResource( (Handle) thePict ) ; M_BITMAPHANDLERDATA->m_bitmapType = kMacBitmapTypePict ; M_BITMAPHANDLERDATA->m_hPict = thePict ; M_BITMAPHANDLERDATA->m_width = theInfo.sourceRect.right - theInfo.sourceRect.left ; M_BITMAPHANDLERDATA->m_height = theInfo.sourceRect.bottom - theInfo.sourceRect.top ; - + M_BITMAPHANDLERDATA->m_depth = theInfo.depth ; M_BITMAPHANDLERDATA->m_ok = true ; M_BITMAPHANDLERDATA->m_numColors = theInfo.uniqueColors ; @@ -1306,3 +1330,106 @@ void wxBitmap::InitStandardHandlers() AddHandler(new wxPICTResourceHandler) ; AddHandler(new wxICONResourceHandler) ; } + +// ---------------------------------------------------------------------------- +// raw bitmap access support +// ---------------------------------------------------------------------------- + +void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) +{ + if ( !Ok() ) + { + // no bitmap, no data (raw or otherwise) + return NULL; + } + + if ( M_BITMAPDATA->m_bitmapType != kMacBitmapTypeGrafWorld ) + { + wxFAIL_MSG( _T("GetRawData() only supported for GWorlds") ); + + return NULL; + } + + GWorldPtr gworld = MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap); + PixMapHandle hPixMap = GetGWorldPixMap(gworld); + wxCHECK_MSG( hPixMap && *hPixMap, NULL, + _T("GetRawData(): failed to get PixMap from GWorld?") ); + + wxCHECK_MSG( (*hPixMap)->pixelSize == bpp, NULL, + _T("GetRawData(): pixel format mismatch") ); + + if ( !LockPixels(hPixMap) ) + { + wxFAIL_MSG( _T("failed to lock PixMap in GetRawData()") ); + + return NULL; + } + + data.m_width = GetWidth(); + data.m_height = GetHeight(); + data.m_stride = (*hPixMap)->rowBytes & 0x7fff; + + M_BITMAPDATA->m_hasAlpha = false; + + return GetPixBaseAddr(hPixMap); +} + +void wxBitmap::UngetRawData(wxPixelDataBase& dataBase) +{ + if ( !Ok() ) + return; + + if ( M_BITMAPDATA->m_hasAlpha ) + { + wxAlphaPixelData& data = (wxAlphaPixelData&)dataBase; + + int w = data.GetWidth(), + h = data.GetHeight(); + + wxBitmap bmpMask(GetWidth(), GetHeight(), 32); + wxAlphaPixelData dataMask(bmpMask, data.GetOrigin(), wxSize(w, h)); + wxAlphaPixelData::Iterator pMask(dataMask), + p(data); + for ( int y = 0; y < h; y++ ) + { + wxAlphaPixelData::Iterator rowStartMask = pMask, + rowStart = p; + + for ( int x = 0; x < w; x++ ) + { + const wxAlphaPixelData::Iterator::ChannelType + alpha = p.Alpha(); + + pMask.Red() = alpha; + pMask.Green() = alpha; + pMask.Blue() = alpha; + + ++p; + ++pMask; + } + + p = rowStart; + p.OffsetY(data, 1); + + pMask = rowStartMask; + pMask.OffsetY(dataMask, 1); + } + + SetMask(new wxMask(bmpMask)); + } + + GWorldPtr gworld = MAC_WXHBITMAP(M_BITMAPDATA->m_hBitmap); + PixMapHandle hPixMap = GetGWorldPixMap(gworld); + if ( hPixMap ) + { + UnlockPixels(hPixMap); + } +} + +void wxBitmap::UseAlpha() +{ + // remember that we are using alpha channel, we'll need to create a proper + // mask in UngetRawData() + M_BITMAPDATA->m_hasAlpha = true; +} +