X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/d135b1a5f7d558e80dcde7f61f618dfffc5dac98..f239a20092359e3c914adb79bd39f3f5d2b2e06f:/src/cocoa/bitmap.mm diff --git a/src/cocoa/bitmap.mm b/src/cocoa/bitmap.mm index 4d7bb3f229..16ca2a7847 100644 --- a/src/cocoa/bitmap.mm +++ b/src/cocoa/bitmap.mm @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: src/cocoa/bitmap.cpp +// Name: src/cocoa/bitmap.mm // Purpose: wxBitmap // Author: David Elliott // Modified by: @@ -9,24 +9,37 @@ // Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// -#include "wx/setup.h" -#include "wx/utils.h" -#include "wx/palette.h" +#include "wx/wxprec.h" + #include "wx/bitmap.h" -#include "wx/icon.h" -#include "wx/log.h" -#include "wx/image.h" + +#ifndef WX_PRECOMP + #include "wx/log.h" + #include "wx/utils.h" + #include "wx/palette.h" + #include "wx/icon.h" + #include "wx/colour.h" + #include "wx/image.h" +#endif //WX_PRECOMP + #include "wx/xpmdecod.h" +#include "wx/rawbmp.h" #include "wx/cocoa/autorelease.h" #include "wx/cocoa/string.h" +#include "wx/cocoa/ObjcRef.h" #import #import +#import +#import + +IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase) // ======================================================================== // wxBitmapRefData // ======================================================================== + class wxBitmapRefData: public wxGDIRefData { friend class wxBitmap; @@ -35,6 +48,8 @@ public: wxBitmapRefData( const wxBitmapRefData& data ); virtual ~wxBitmapRefData(); + virtual bool IsOk() const { return m_ok; } + protected: int m_width; int m_height; @@ -47,8 +62,6 @@ protected: wxMask *m_bitmapMask; // Optional mask }; -#define M_BITMAPDATA ((wxBitmapRefData *)m_refData) - wxBitmapRefData::wxBitmapRefData() { m_ok = FALSE; @@ -63,6 +76,8 @@ wxBitmapRefData::wxBitmapRefData() wxBitmapRefData::wxBitmapRefData( const wxBitmapRefData& data) { + wxAutoNSAutoreleasePool pool; + m_width = data.m_width; m_height = data.m_height; m_depth = data.m_depth; @@ -70,14 +85,13 @@ wxBitmapRefData::wxBitmapRefData( const wxBitmapRefData& data) m_numColors = data.m_numColors; m_bitmapPalette = data.m_bitmapPalette; m_quality = data.m_quality; - m_cocoaNSBitmapImageRep = data.m_cocoaNSBitmapImageRep; - [m_cocoaNSBitmapImageRep retain]; + m_cocoaNSBitmapImageRep = wxGCSafeRetain([[data.m_cocoaNSBitmapImageRep copyWithZone:nil] autorelease]); m_bitmapMask = data.m_bitmapMask?new wxMask(*data.m_bitmapMask):NULL; } wxBitmapRefData::~wxBitmapRefData() { - [m_cocoaNSBitmapImageRep release]; + wxGCSafeRelease(m_cocoaNSBitmapImageRep); m_cocoaNSBitmapImageRep = NULL; delete m_bitmapMask; @@ -87,20 +101,18 @@ wxBitmapRefData::~wxBitmapRefData() // ======================================================================== // wxBitmap // ======================================================================== + +#define M_BITMAPDATA ((wxBitmapRefData *)m_refData) + IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject) wxBitmap::wxBitmap() { m_refData = NULL; - - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); } wxBitmap::~wxBitmap() { - if (wxTheBitmapList) - wxTheBitmapList->DeleteObject(this); } wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits) @@ -113,41 +125,34 @@ wxBitmap::wxBitmap(const char bits[], int the_width, int the_height, int no_bits M_BITMAPDATA->m_numColors = 0; /* TODO: create the bitmap from data */ - - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); } -wxBitmap::wxBitmap(int w, int h, int d) +wxBitmap::wxBitmap(NSImage* cocoaNSImage) { - (void)Create(w, h, d); + (void) Create(cocoaNSImage); +} - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); +wxBitmap::wxBitmap(NSBitmapImageRep* cocoaNSBitmapImageRep) +{ + (void) Create(cocoaNSBitmapImageRep); } -wxBitmap::wxBitmap(void *data, wxBitmapType type, int width, int height, int depth) +wxBitmap::wxBitmap(const void* data, wxBitmapType type, int width, int height, int depth) { (void) Create(data, type, width, height, depth); - - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); } wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type) { LoadFile(filename, type); - - if ( wxTheBitmapList ) - wxTheBitmapList->AddBitmap(this); } -wxObjectRefData *wxBitmap::CreateRefData() const +wxGDIRefData *wxBitmap::CreateGDIRefData() const { return new wxBitmapRefData; } -wxObjectRefData *wxBitmap::CloneRefData(const wxObjectRefData *data) const +wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *data) const { return new wxBitmapRefData(*(wxBitmapRefData*)data); } @@ -159,6 +164,42 @@ WX_NSBitmapImageRep wxBitmap::GetNSBitmapImageRep() return M_BITMAPDATA->m_cocoaNSBitmapImageRep; } +WX_NSImage wxBitmap::GetNSImage(bool useMask) const +{ + if(!IsOk()) + return nil; + NSImage *nsimage = [[[NSImage alloc] + initWithSize:NSMakeSize(GetWidth(), GetHeight())] autorelease]; + if(!nsimage) + return nil; + [nsimage addRepresentation: M_BITMAPDATA->m_cocoaNSBitmapImageRep]; + if(useMask && GetMask()) + { + // Show before/after to prove that the bitmap itself is not changed + // even though we just composited onto the NSImage + wxLogTrace(wxTRACE_COCOA,wxT("Before: bpp=%d"),[M_BITMAPDATA->m_cocoaNSBitmapImageRep bitsPerPixel]); + NSImage *maskImage = [[NSImage alloc] + initWithSize:NSMakeSize(GetWidth(), GetHeight())]; + [maskImage addRepresentation: GetMask()->GetNSBitmapImageRep()]; + [nsimage lockFocus]; + [maskImage compositeToPoint:NSZeroPoint operation:NSCompositeDestinationIn]; + [nsimage unlockFocus]; + [maskImage release]; + wxLogTrace(wxTRACE_COCOA,wxT("After: bpp=%d"),[M_BITMAPDATA->m_cocoaNSBitmapImageRep bitsPerPixel]); + } + return nsimage; +} + +void wxBitmap::SetNSBitmapImageRep(WX_NSBitmapImageRep bitmapImageRep) +{ + if(!M_BITMAPDATA) + return; + // NOTE: No checking is done to make sure width/height agree + wxGCSafeRetain(bitmapImageRep); + wxGCSafeRelease(M_BITMAPDATA->m_cocoaNSBitmapImageRep); + M_BITMAPDATA->m_cocoaNSBitmapImageRep = bitmapImageRep; +} + void wxBitmap::SetWidth(int w) { if (!M_BITMAPDATA) @@ -215,11 +256,6 @@ void wxBitmap::SetMask(wxMask *mask) M_BITMAPDATA->m_bitmapMask = mask ; } -bool wxBitmap::Ok() const -{ - return m_refData && M_BITMAPDATA->m_ok; -} - wxPalette* wxBitmap::GetPalette() const { if(!m_refData) @@ -257,6 +293,8 @@ int wxBitmap::GetHeight() const bool wxBitmap::Create(int w, int h, int d) { + wxAutoNSAutoreleasePool pool; + UnRef(); m_refData = new wxBitmapRefData; @@ -266,6 +304,24 @@ bool wxBitmap::Create(int w, int h, int d) M_BITMAPDATA->m_depth = d; /* TODO: create new bitmap */ + M_BITMAPDATA->m_cocoaNSBitmapImageRep = wxGCSafeRetain([[[NSBitmapImageRep alloc] + initWithBitmapDataPlanes: NULL + pixelsWide: w + pixelsHigh: h + bitsPerSample: 8 + samplesPerPixel: 3 + hasAlpha: NO + isPlanar: NO + colorSpaceName: NSCalibratedRGBColorSpace + bytesPerRow: 0 // NOTE: Contrary to Apple documentation Mac OS + // 10.4 will add padding bytes when 0 is used here + bitsPerPixel: 0] autorelease]); + + wxLogTrace(wxTRACE_COCOA,wxT("M_BITMAPDATA=%p NSBitmapImageRep bitmapData=%p"), M_BITMAPDATA, [M_BITMAPDATA->m_cocoaNSBitmapImageRep bitmapData]); + M_BITMAPDATA->m_ok = true; + M_BITMAPDATA->m_numColors = 0; + M_BITMAPDATA->m_quality = 0; + M_BITMAPDATA->m_bitmapMask = NULL; return M_BITMAPDATA->m_ok; } @@ -288,20 +344,47 @@ bool wxBitmap::LoadFile(const wxString& filename, wxBitmapType type) M_BITMAPDATA->m_ok = true; M_BITMAPDATA->m_numColors = 0; M_BITMAPDATA->m_quality = 0; - M_BITMAPDATA->m_cocoaNSBitmapImageRep = [imageRep retain]; + M_BITMAPDATA->m_cocoaNSBitmapImageRep = wxGCSafeRetain(imageRep); M_BITMAPDATA->m_bitmapMask = NULL; return true; } wxImage image; if(!image.LoadFile(filename,type)) return false; - if(!image.Ok()) + if(!image.IsOk()) return false; *this = wxBitmap(image); return true; } -bool wxBitmap::Create(void *data, wxBitmapType type, int width, int height, int depth) +bool wxBitmap::Create(NSImage* cocoaNSImage) +{ + wxAutoNSAutoreleasePool pool; + NSBitmapImageRep *bitmapImageRep = [NSBitmapImageRep imageRepWithData:[cocoaNSImage TIFFRepresentation]]; + return Create(bitmapImageRep); +} + +bool wxBitmap::Create(NSBitmapImageRep *imageRep) +{ + UnRef(); + m_refData = new wxBitmapRefData; + if(imageRep != nil) + { + M_BITMAPDATA->m_width = [imageRep pixelsWide]; + M_BITMAPDATA->m_height = [imageRep pixelsHigh]; + M_BITMAPDATA->m_depth = [imageRep bitsPerPixel]; + M_BITMAPDATA->m_ok = true; + M_BITMAPDATA->m_numColors = 0; + M_BITMAPDATA->m_quality = 0; + M_BITMAPDATA->m_cocoaNSBitmapImageRep = wxGCSafeRetain(imageRep); + M_BITMAPDATA->m_bitmapMask = NULL; + return true; + } + else + return false; +} + +bool wxBitmap::Create(const void* data, wxBitmapType type, int width, int height, int depth) { UnRef(); @@ -315,53 +398,92 @@ bool wxBitmap::SaveFile(const wxString& filename, wxBitmapType type, const wxPal return false; } -bool wxBitmap::CopyFromIcon(const wxIcon& icno) +bool wxBitmap::CopyFromIcon(const wxIcon& icon) { - return false; -} + // Pool here due to lack of one during wx init phase + wxAutoNSAutoreleasePool pool; -wxBitmap wxBitmap::GetSubBitmap(wxRect const&) const -{ - return wxNullBitmap; + UnRef(); + if(!icon.GetNSImage()); + [icon.GetNSImage() lockFocus]; + NSRect imageRect; + imageRect.origin.x = imageRect.origin.y = 0.0; + imageRect.size = [icon.GetNSImage() size]; + NSBitmapImageRep *newBitmapRep = [[[NSBitmapImageRep alloc] initWithFocusedViewRect:imageRect] autorelease]; + [icon.GetNSImage() unlockFocus]; + if(!newBitmapRep) + return false; + m_refData = new wxBitmapRefData; + M_BITMAPDATA->m_cocoaNSBitmapImageRep = wxGCSafeRetain(newBitmapRep); + M_BITMAPDATA->m_width = [newBitmapRep pixelsWide]; + M_BITMAPDATA->m_height = [newBitmapRep pixelsHigh]; + M_BITMAPDATA->m_depth = [newBitmapRep bitsPerSample]*[newBitmapRep samplesPerPixel]; + M_BITMAPDATA->m_ok = true; + M_BITMAPDATA->m_numColors = 0; + M_BITMAPDATA->m_quality = 0; + M_BITMAPDATA->m_bitmapMask = NULL; + return true; } -wxImage wxBitmap::ConvertToImage() const +wxBitmap wxBitmap::GetSubBitmap(const wxRect& rect) const { - if(!M_BITMAPDATA->m_ok) - return wxImage(5,5)/*wxNullImage*/; - return wxImage(M_BITMAPDATA->m_width,M_BITMAPDATA->m_height); -} + wxAutoNSAutoreleasePool pool; + if(!IsOk()) + return wxNullBitmap; + NSImage *nsimage = GetNSImage(false); -bool wxBitmap::CreateFromXpm(const char **xpm) -{ -#if wxUSE_IMAGE && wxUSE_XPM - UnRef(); + [nsimage lockFocus]; + NSRect imageRect = {{0,0}, [nsimage size]}; + imageRect.origin.x = imageRect.size.width * rect.x / GetWidth(); + imageRect.origin.y = imageRect.size.height * rect.y / GetHeight(); + imageRect.size.width *= static_cast(rect.width) / GetWidth(); + imageRect.size.height *= static_cast(rect.height) / GetHeight(); - wxCHECK_MSG( xpm, false, wxT("invalid XPM data") ) + NSBitmapImageRep *newBitmapRep = [[NSBitmapImageRep alloc] initWithFocusedViewRect:imageRect]; + [nsimage unlockFocus]; - wxXPMDecoder decoder; - wxImage img = decoder.ReadData(xpm); - wxCHECK_MSG( img.Ok(), false, wxT("invalid XPM data") ) + wxBitmap newBitmap(newBitmapRep); - *this = wxBitmap(img); - return true; -#else - return false; -#endif + return (newBitmap); +} + +wxImage wxBitmap::ConvertToImage() const +{ + wxAutoNSAutoreleasePool pool; + if(!IsOk()) + return /*wxImage(5,5)*/wxNullImage; + NSImage *nsimage = GetNSImage(false /* don't use mask */); + wxImage newImage(M_BITMAPDATA->m_width,M_BITMAPDATA->m_height); + [nsimage lockFocus]; + for(int i=0; i < M_BITMAPDATA->m_width; i++) + { + // Don't let the pool get too big as you'll notice we're creating + // two autoreleased NSColor objects with every iteration. + wxAutoNSAutoreleasePool loopPool; + for(int j=0; j < M_BITMAPDATA->m_height; j++) + { + NSColor *pixelColor = NSReadPixel(NSMakePoint(i,M_BITMAPDATA->m_height - j - 1)); + NSColor *color = [pixelColor colorUsingColorSpaceName:NSCalibratedRGBColorSpace]; + newImage.SetRGB(i,j,int([color redComponent]*255.0), int([color greenComponent]*255.0), int([color blueComponent]*255.0)); + } + } + [nsimage unlockFocus]; + return newImage; } bool wxBitmap::CreateFromImage(const wxImage& image, int depth) { + wxAutoNSAutoreleasePool pool; UnRef(); - wxCHECK_MSG(image.Ok(), false, wxT("invalid image")); + wxCHECK_MSG(image.IsOk(), false, wxT("invalid image")); wxCHECK_MSG(depth == -1 || depth == 1, false, wxT("invalid bitmap depth")); m_refData = new wxBitmapRefData(); M_BITMAPDATA->m_width = image.GetWidth(); M_BITMAPDATA->m_height = image.GetHeight(); - NSBitmapImageRep *bitmapImage = [[NSBitmapImageRep alloc] + NSBitmapImageRep *bitmapImage = [[[NSBitmapImageRep alloc] initWithBitmapDataPlanes: NULL pixelsWide: image.GetWidth() pixelsHigh: image.GetHeight() @@ -370,9 +492,11 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth) hasAlpha: NO isPlanar: NO colorSpaceName: NSCalibratedRGBColorSpace - bytesPerRow: 0 - bitsPerPixel: 0]; + bytesPerRow: image.GetWidth()*3 + bitsPerPixel: 0] autorelease]; + // TODO: Specify bytesPerRow:0 and then use [bitmapImage bytesPerRow] + // so that the rows are aligned suitably for altivec by the OS (Tiger) const int numBytes = image.GetWidth()*image.GetHeight()*3; memcpy([bitmapImage bitmapData], image.GetData(), numBytes); // TODO: Alpha and convert to desired depth @@ -380,11 +504,42 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth) M_BITMAPDATA->m_ok = true; M_BITMAPDATA->m_numColors = 0; M_BITMAPDATA->m_quality = 0; - M_BITMAPDATA->m_cocoaNSBitmapImageRep = bitmapImage; - M_BITMAPDATA->m_bitmapMask = NULL; + M_BITMAPDATA->m_cocoaNSBitmapImageRep = wxGCSafeRetain(bitmapImage); + M_BITMAPDATA->m_bitmapMask = new wxMask(*this,wxColour(image.GetMaskRed(),image.GetMaskGreen(),image.GetMaskBlue())); return true; } +void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp) +{ + if(!IsOk()) + return NULL; + + NSBitmapImageRep *bitmapRep = M_BITMAPDATA->m_cocoaNSBitmapImageRep; + if(!bitmapRep) + return NULL; + + if([bitmapRep bitsPerPixel]!=bpp) + { + wxFAIL_MSG( wxT("incorrect bitmap type in wxBitmap::GetRawData()") ); + return NULL; + } + data.m_width = [bitmapRep pixelsWide]; + data.m_height = [bitmapRep pixelsHigh]; + data.m_stride = [bitmapRep bytesPerRow]; + return [bitmapRep bitmapData]; + + // NOTE: It is up to the user to make sure they used the proper + // pixel format class that details what is actually inside the pixels + // We can only check to make sure that the total number of bits per + // pixel are being iterated over properly + // NSBitmapImageRep can contain grayscale or CMYK data and + // wxPixelDataBase doesn't really define the color format +} + +void wxBitmap::UngetRawData(wxPixelDataBase& data) +{ // TODO +} + // ======================================================================== // wxMask // ======================================================================== @@ -393,18 +548,14 @@ IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject) wxMask::wxMask() { -/* TODO - m_maskBitmap = 0; -*/ + m_cocoaNSBitmapImageRep = nil; } // Construct a mask from a bitmap and a colour indicating // the transparent area wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour) { -/* TODO - m_maskBitmap = 0; -*/ + m_cocoaNSBitmapImageRep = nil; Create(bitmap, colour); } @@ -412,9 +563,7 @@ wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour) // the transparent area wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex) { -/* TODO - m_maskBitmap = 0; -*/ + m_cocoaNSBitmapImageRep = nil; Create(bitmap, paletteIndex); } @@ -422,22 +571,28 @@ wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex) // Construct a mask from a mono bitmap (copies the bitmap). wxMask::wxMask(const wxBitmap& bitmap) { -/* TODO - m_maskBitmap = 0; -*/ + m_cocoaNSBitmapImageRep = nil; Create(bitmap); } +// Copy constructor +wxMask::wxMask(const wxMask& src) +: wxObject(src) +, m_cocoaNSBitmapImageRep(wxGCSafeRetain(src.m_cocoaNSBitmapImageRep)) +{ +} + wxMask::~wxMask() { -// TODO: delete mask bitmap + wxGCSafeRelease(m_cocoaNSBitmapImageRep); } // Create a mask from a mono bitmap (copies the bitmap). bool wxMask::Create(const wxBitmap& bitmap) { // TODO + wxLogDebug(wxT("Cannot yet create a mask from a mono bitmap")); return FALSE; } @@ -446,14 +601,125 @@ bool wxMask::Create(const wxBitmap& bitmap) bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) { // TODO + wxLogDebug(wxT("Cannot yet create a mask from a palette bitmap")); return FALSE; } +template +static bool wxMask_CreateFromBitmapData(PixelData srcData, const wxColour& colour, unsigned char *dstData) +{ + wxCHECK_MSG(dstData,false,wxT("Couldn't access mask data")); + typename PixelData::Iterator p(srcData); + const int nRows = srcData.GetHeight(); + const int nCols = srcData.GetWidth(); + // Total number of bytes per destination column + const int dstRowLength = (nCols+7)/8; + // Number of source columns that fit into a byte in the destination + const int width_aligned = nCols/8*8; + for(int y=0; y0) + *dstByte = 0; + for(int j=0; j<(nCols%8); ++j, ++p) + { + *dstByte += + ( p.Red()!=colour.Red() + || p.Green()!=colour.Green() + || p.Blue()!=colour.Blue() + ) << (7-j); + } + p = rowStart; + p.OffsetY(srcData,1); + } + return true; +} + // Create a mask from a bitmap and a colour indicating // the transparent area bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) { -// TODO - return FALSE; -} + wxAutoNSAutoreleasePool pool; + if(!bitmap.IsOk()) + return false; + int bmpWidth = bitmap.GetWidth(); + int bmpHeight = bitmap.GetHeight(); + int dstRowLength = (bmpWidth+7)/8; + + // Create a bitmap image rep with 1-bit per pixel data representing + // the alpha channel padded such that rows end on byte boundaries + // Since NSBitmapImageRep doesn't have any sort of NSNullColorSpace + // we must have at least one channel of non-alpha data. In order to + // make our life easy, we use planar data which results in two + // separate arrays. We don't need to touch the first because it + // should never be used. The second is the 1-bit "alpha" data. + NSBitmapImageRep *maskRep = [[[NSBitmapImageRep alloc] + initWithBitmapDataPlanes:NULL pixelsWide:bmpWidth + pixelsHigh:bmpHeight bitsPerSample:1 + samplesPerPixel:2 hasAlpha:YES isPlanar:YES + colorSpaceName:NSCalibratedWhiteColorSpace + bytesPerRow:dstRowLength bitsPerPixel:1] autorelease]; + wxCHECK(maskRep,false); + + // We need the source NSBitmapImageRep to detemine its pixel format + NSBitmapImageRep *srcBitmapRep = const_cast(bitmap).GetNSBitmapImageRep(); + wxCHECK_MSG(srcBitmapRep,false,wxT("Can't create mask for an uninitialized bitmap")); + + // Get a pointer to the destination data + unsigned char *dstPlanes[5] = {NULL,NULL,NULL,NULL,NULL}; + [maskRep getBitmapDataPlanes:dstPlanes]; + unsigned char *dstData = dstPlanes[1]; + // The wxImage format (which we use whenever we imported from wxImage) + if([srcBitmapRep bitsPerPixel]==24 && [srcBitmapRep bitsPerSample]==8 && [srcBitmapRep samplesPerPixel]==3 && [srcBitmapRep hasAlpha]==NO) + { + wxPixelData pixelData(const_cast(bitmap)); + wxCHECK_MSG(wxMask_CreateFromBitmapData(pixelData, colour, dstData), + false, wxT("Unable to access raw data")); + } + // 32-bpp RGBx (x=throw away, no alpha) + else if([srcBitmapRep bitsPerPixel]==32 && [srcBitmapRep bitsPerSample]==8 && [srcBitmapRep samplesPerPixel]==3 && [srcBitmapRep hasAlpha]==NO) + { + typedef wxPixelFormat PixelFormat; + wxPixelData pixelData(const_cast(bitmap)); + wxCHECK_MSG(wxMask_CreateFromBitmapData(pixelData, colour, dstData), + false, wxT("Unable to access raw data")); + } + // 32-bpp RGBA + else if([srcBitmapRep bitsPerPixel]==32 && [srcBitmapRep bitsPerSample]==8 && [srcBitmapRep samplesPerPixel]==4 && [srcBitmapRep hasAlpha]==YES) + { + wxPixelData pixelData(const_cast(bitmap)); + wxCHECK_MSG(wxMask_CreateFromBitmapData(pixelData, colour, dstData), + false, wxT("Unable to access raw data")); + } + else if([srcBitmapRep bitsPerPixel]==8 && [srcBitmapRep bitsPerSample]==8 && [srcBitmapRep samplesPerPixel]==1 && [srcBitmapRep hasAlpha]==NO) + // 8-bpp Grayscale, no alpha + { // Force all RGB to access the same grayscale component + typedef wxPixelFormat PixelFormat; + wxPixelData pixelData(const_cast(bitmap)); + wxCHECK_MSG(wxMask_CreateFromBitmapData(pixelData, colour, dstData), + false, wxT("Unable to access raw data")); + } + else + { wxCHECK_MSG(false,false,wxT("Unimplemented pixel format")); } + // maskRep was autoreleased in case we had to exit quickly + m_cocoaNSBitmapImageRep = wxGCSafeRetain(maskRep); + return true; +}