X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4ce81a75efb34de9f01fe3c7b9ffecb03293b1c3..7b9da2077d0975db6c965a85c91d5aca671ab5e3:/src/common/image.cpp?ds=sidebyside diff --git a/src/common/image.cpp b/src/common/image.cpp index 01921b677a..fa17d43fa0 100644 --- a/src/common/image.cpp +++ b/src/common/image.cpp @@ -15,7 +15,7 @@ #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #include "wx/image.h" @@ -23,15 +23,20 @@ #include "wx/debug.h" #include "wx/log.h" #include "wx/app.h" -#ifdef wxUSE_LIBPNG -#include "../png/png.h" -#endif #include "wx/filefn.h" #include "wx/wfstream.h" #include "wx/intl.h" +#include "wx/module.h" + +// For memcpy +#include + +#ifdef __SALFORDC__ + #undef FAR +#endif #ifdef __WXMSW__ -#include + #include "wx/msw/private.h" #endif //----------------------------------------------------------------------------- @@ -42,18 +47,18 @@ class wxImageRefData: public wxObjectRefData { public: - wxImageRefData(void); - ~wxImageRefData(void); - - int m_width; - int m_height; - unsigned char *m_data; - bool m_hasMask; - unsigned char m_maskRed,m_maskGreen,m_maskBlue; - bool m_ok; + wxImageRefData(); + ~wxImageRefData(); + + int m_width; + int m_height; + unsigned char *m_data; + bool m_hasMask; + unsigned char m_maskRed,m_maskGreen,m_maskBlue; + bool m_ok; }; -wxImageRefData::wxImageRefData(void) +wxImageRefData::wxImageRefData() { m_width = 0; m_height = 0; @@ -65,7 +70,7 @@ wxImageRefData::wxImageRefData(void) m_hasMask = FALSE; } -wxImageRefData::~wxImageRefData(void) +wxImageRefData::~wxImageRefData() { if (m_data) free( m_data ); } @@ -77,7 +82,7 @@ wxList wxImage::sm_handlers; #define M_IMGDATA ((wxImageRefData *)m_refData) #if !USE_SHARED_LIBRARIES -IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject) + IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject) #endif wxImage::wxImage() @@ -94,11 +99,23 @@ wxImage::wxImage( const wxString& name, long type ) LoadFile( name, type ); } +wxImage::wxImage( const wxString& name, const wxString& mimetype ) +{ + LoadFile( name, mimetype ); +} + +#if wxUSE_STREAMS wxImage::wxImage( wxInputStream& stream, long type ) { LoadFile( stream, type ); } +wxImage::wxImage( wxInputStream& stream, const wxString& mimetype ) +{ + LoadFile( stream, mimetype ); +} +#endif // wxUSE_STREAMS + wxImage::wxImage( const wxImage& image ) { Ref(image); @@ -133,49 +150,90 @@ void wxImage::Destroy() UnRef(); } -wxImage wxImage::Scale( int width, int height ) +wxImage wxImage::Scale( int width, int height ) const { wxImage image; - wxCHECK_MSG( Ok(), image, "invlaid image" ); + wxCHECK_MSG( Ok(), image, wxT("invalid image") ); - wxCHECK_MSG( (width > 0) && (height > 0), image, "invalid image size" ); + wxCHECK_MSG( (width > 0) && (height > 0), image, wxT("invalid image size") ); image.Create( width, height ); char unsigned *data = image.GetData(); - wxCHECK_MSG( data, image, "unable to create image" ); + wxCHECK_MSG( data, image, wxT("unable to create image") ); if (M_IMGDATA->m_hasMask) image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue ); - double xscale = (double)width / (double)M_IMGDATA->m_width; - double yscale = (double)height / (double)M_IMGDATA->m_height; + long old_height = M_IMGDATA->m_height; + long old_width = M_IMGDATA->m_width; - for (int j = 0; j < height; j++) + char unsigned *source_data = M_IMGDATA->m_data; + char unsigned *target_data = data; + + for (long j = 0; j < height; j++) { - for (int i = 0; i < width; i++) + long y_offset = (j * old_height / height) * old_width; + + for (long i = 0; i < width; i++) { - int new_pos = 3*(j*width + i); - int old_pos = 3*((long)(j/yscale)*M_IMGDATA->m_width + (long)(i/xscale)); - data[ new_pos ] = M_IMGDATA->m_data[ old_pos ]; - data[ new_pos+1 ] = M_IMGDATA->m_data[ old_pos+1 ]; - data[ new_pos+2 ] = M_IMGDATA->m_data[ old_pos+2 ]; + memcpy( target_data, + source_data + 3*(y_offset + ((i * old_width )/ width)), + 3 ); + target_data += 3; } } return image; } +wxImage wxImage::GetSubImage( const wxRect &rect ) const +{ + wxImage image; + + wxCHECK_MSG( Ok(), image, wxT("invalid image") ); + + wxCHECK_MSG( (rect.GetLeft()>=0) && (rect.GetTop()>=0) && (rect.GetRight()<=GetWidth()) && (rect.GetBottom()<=GetHeight()) + , image, wxT("invalid subimage size") ); + + int subwidth=rect.GetWidth(); + const int subheight=rect.GetHeight(); + + image.Create( subwidth, subheight ); + + char unsigned *subdata = image.GetData(), *data=GetData(); + + wxCHECK_MSG( subdata, image, wxT("unable to create image") ); + + if (M_IMGDATA->m_hasMask) + image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue ); + + const int subleft=3*rect.GetLeft(); + const int width=3*GetWidth(); + subwidth*=3; + + data+=rect.GetTop()*width+subleft; + + for (long j = 0; j < subheight; ++j) + { + memcpy( subdata, data, subwidth); + subdata+=subwidth; + data+=width; + } + + return image; +} + void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b ) { - wxCHECK_RET( Ok(), "invalid image" ); + wxCHECK_RET( Ok(), wxT("invalid image") ); int w = M_IMGDATA->m_width; int h = M_IMGDATA->m_height; - wxCHECK_RET( (x>=0) && (y>=0) && (x=0) && (y>=0) && (xm_width; int h = M_IMGDATA->m_height; - wxCHECK_MSG( (x>=0) && (y>=0) && (x=0) && (y>=0) && (xm_width; int h = M_IMGDATA->m_height; - wxCHECK_MSG( (x>=0) && (y>=0) && (x=0) && (y>=0) && (xm_width; int h = M_IMGDATA->m_height; - wxCHECK_MSG( (x>=0) && (y>=0) && (x=0) && (y>=0) && (xm_data; } -void wxImage::SetData( char unsigned *WXUNUSED(data) ) +void wxImage::SetData( char unsigned *data ) { - wxCHECK_RET( Ok(), "invalid image" ); + wxCHECK_RET( Ok(), wxT("invalid image") ); + + wxImageRefData *newRefData = new wxImageRefData(); + + newRefData->m_width = M_IMGDATA->m_width; + newRefData->m_height = M_IMGDATA->m_height; + newRefData->m_data = data; + newRefData->m_ok = TRUE; + newRefData->m_maskRed = M_IMGDATA->m_maskRed; + newRefData->m_maskGreen = M_IMGDATA->m_maskGreen; + newRefData->m_maskBlue = M_IMGDATA->m_maskBlue; + newRefData->m_hasMask = M_IMGDATA->m_hasMask; + + UnRef(); + + m_refData = newRefData; } void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b ) { - wxCHECK_RET( Ok(), "invalid image" ); + wxCHECK_RET( Ok(), wxT("invalid image") ); M_IMGDATA->m_maskRed = r; M_IMGDATA->m_maskGreen = g; @@ -255,55 +328,56 @@ void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b ) unsigned char wxImage::GetMaskRed() const { - wxCHECK_MSG( Ok(), 0, "invalid image" ); + wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); return M_IMGDATA->m_maskRed; } unsigned char wxImage::GetMaskGreen() const { - wxCHECK_MSG( Ok(), 0, "invalid image" ); + wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); return M_IMGDATA->m_maskGreen; } unsigned char wxImage::GetMaskBlue() const { - wxCHECK_MSG( Ok(), 0, "invalid image" ); + wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); return M_IMGDATA->m_maskBlue; } void wxImage::SetMask( bool mask ) { - wxCHECK_RET( Ok(), "invalid image" ); + wxCHECK_RET( Ok(), wxT("invalid image") ); M_IMGDATA->m_hasMask = mask; } bool wxImage::HasMask() const { - wxCHECK_MSG( Ok(), FALSE, "invalid image" ); + wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") ); return M_IMGDATA->m_hasMask; } int wxImage::GetWidth() const { - wxCHECK_MSG( Ok(), 0, "invalid image" ); + wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); return M_IMGDATA->m_width; } int wxImage::GetHeight() const { - wxCHECK_MSG( Ok(), 0, "invalid image" ); + wxCHECK_MSG( Ok(), 0, wxT("invalid image") ); return M_IMGDATA->m_height; } bool wxImage::LoadFile( const wxString& filename, long type ) { +#if wxUSE_STREAMS if (wxFileExists(filename)) { wxFileInputStream stream(filename); @@ -311,10 +385,82 @@ bool wxImage::LoadFile( const wxString& filename, long type ) } else { - wxLogWarning( "Image file does not exist." ); + wxLogError( wxT("Can't load image from file '%s': file does not exist."), filename.c_str() ); + + return FALSE; + } +#else // !wxUSE_STREAMS + return FALSE; +#endif // wxUSE_STREAMS +} + +bool wxImage::LoadFile( const wxString& filename, const wxString& mimetype ) +{ +#if wxUSE_STREAMS + if (wxFileExists(filename)) + { + wxFileInputStream stream(filename); + return LoadFile(stream, mimetype); + } + + else { + wxLogError( wxT("Can't load image from file '%s': file does not exist."), filename.c_str() ); + + return FALSE; + } +#else // !wxUSE_STREAMS + return FALSE; +#endif // wxUSE_STREAMS +} + +bool wxImage::SaveFile( const wxString& filename, int type ) +{ +#if wxUSE_STREAMS + wxFileOutputStream stream(filename); + + if ( stream.LastError() == wxStream_NOERROR ) + return SaveFile(stream, type); + else +#endif // wxUSE_STREAMS + return FALSE; +} + +bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype ) +{ +#if wxUSE_STREAMS + wxFileOutputStream stream(filename); + if ( stream.LastError() == wxStream_NOERROR ) + return SaveFile(stream, mimetype); + else +#endif // wxUSE_STREAMS return FALSE; +} + +bool wxImage::CanRead( const wxString &name ) +{ +#if wxUSE_STREAMS + wxFileInputStream stream(name); + return CanRead(stream); +#else + return FALSE; +#endif +} + +#if wxUSE_STREAMS + +bool wxImage::CanRead( wxInputStream &stream ) +{ + wxList &list=GetHandlers(); + + for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() ) + { + wxImageHandler *handler=(wxImageHandler*)node->GetData(); + if (handler->CanRead( stream )) + return TRUE; } + + return FALSE; } bool wxImage::LoadFile( wxInputStream& stream, long type ) @@ -323,11 +469,29 @@ bool wxImage::LoadFile( wxInputStream& stream, long type ) m_refData = new wxImageRefData; - wxImageHandler *handler = FindHandler(type); + wxImageHandler *handler; + + if (type==wxBITMAP_TYPE_ANY) + { + wxList &list=GetHandlers(); + + for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() ) + { + handler=(wxImageHandler*)node->GetData(); + if (handler->CanRead( stream )) + return handler->LoadFile( this, stream ); + + } + + wxLogWarning( wxT("No handler found for this image.") ); + return FALSE; + } + + handler = FindHandler(type); if (handler == NULL) { - wxLogWarning( "No image handler for type %d defined.", type ); + wxLogWarning( wxT("No image handler for type %d defined."), type ); return FALSE; } @@ -335,31 +499,56 @@ bool wxImage::LoadFile( wxInputStream& stream, long type ) return handler->LoadFile( this, stream ); } -bool wxImage::SaveFile( const wxString& filename, int type ) +bool wxImage::LoadFile( wxInputStream& stream, const wxString& mimetype ) { - wxFileOutputStream stream(filename); + UnRef(); + + m_refData = new wxImageRefData; + + wxImageHandler *handler = FindHandlerMime(mimetype); + + if (handler == NULL) + { + wxLogWarning( wxT("No image handler for type %s defined."), mimetype.GetData() ); - if ( stream.LastError() == wxStream_NOERROR ) - return SaveFile(stream, type); - else return FALSE; + } + + return handler->LoadFile( this, stream ); } bool wxImage::SaveFile( wxOutputStream& stream, int type ) { - wxCHECK_MSG( Ok(), FALSE, "invalid image" ); + wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") ); wxImageHandler *handler = FindHandler(type); if (handler == NULL) { - wxLogWarning( "No image handler for type %d defined.", type ); + wxLogWarning( wxT("No image handler for type %d defined."), type ); + + return FALSE; + } + + return handler->SaveFile( this, stream ); +} + +bool wxImage::SaveFile( wxOutputStream& stream, const wxString& mimetype ) +{ + wxCHECK_MSG( Ok(), FALSE, wxT("invalid image") ); + + wxImageHandler *handler = FindHandlerMime(mimetype); + + if (handler == NULL) + { + wxLogWarning( wxT("No image handler for type %s defined."), mimetype.GetData() ); - return FALSE; + return FALSE; } return handler->SaveFile( this, stream ); } +#endif // wxUSE_STREAMS void wxImage::AddHandler( wxImageHandler *handler ) { @@ -395,7 +584,8 @@ wxImageHandler *wxImage::FindHandler( const wxString& name ) while (node) { wxImageHandler *handler = (wxImageHandler*)node->Data(); - if (handler->GetName() == name) return handler; + if (handler->GetName().Cmp(name) == 0) return handler; + node = node->Next(); } return (wxImageHandler *)NULL; @@ -407,9 +597,9 @@ wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType while (node) { wxImageHandler *handler = (wxImageHandler*)node->Data(); - if ( handler->GetExtension() == extension && + if ( (handler->GetExtension().Cmp(extension) == 0) && (bitmapType == -1 || handler->GetType() == bitmapType) ) - return handler; + return handler; node = node->Next(); } return (wxImageHandler*)NULL; @@ -427,12 +617,21 @@ wxImageHandler *wxImage::FindHandler( long bitmapType ) return NULL; } +wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype ) +{ + wxNode *node = sm_handlers.First(); + while (node) + { + wxImageHandler *handler = (wxImageHandler *)node->Data(); + if (handler->GetMimeType().IsSameAs(mimetype, FALSE)) return handler; + node = node->Next(); + } + return NULL; +} + void wxImage::InitStandardHandlers() { - AddHandler( new wxBMPHandler ); -#ifdef wxUSE_LIBPNG - AddHandler( new wxPNGHandler ); -#endif + AddHandler( new wxBMPHandler ); } void wxImage::CleanUpHandlers() @@ -453,890 +652,298 @@ void wxImage::CleanUpHandlers() //----------------------------------------------------------------------------- #if !USE_SHARED_LIBRARIES -IMPLEMENT_DYNAMIC_CLASS(wxImageHandler,wxObject) +IMPLEMENT_ABSTRACT_CLASS(wxImageHandler,wxObject) #endif -bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream) ) +#if wxUSE_STREAMS +bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream), bool WXUNUSED(verbose) ) { return FALSE; } -bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream) ) +bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream), bool WXUNUSED(verbose) ) { return FALSE; } -//----------------------------------------------------------------------------- -// wxPNGHandler -//----------------------------------------------------------------------------- - -#ifdef wxUSE_LIBPNG - -#if !USE_SHARED_LIBRARIES -IMPLEMENT_DYNAMIC_CLASS(wxPNGHandler,wxImageHandler) -#endif - - -static void _PNG_stream_reader( png_structp png_ptr, png_bytep data, png_size_t length ) +bool wxImageHandler::CanRead( const wxString& name ) { - ((wxInputStream*) png_get_io_ptr( png_ptr )) -> Read(data, length); -} +#if wxUSE_STREAMS + if (wxFileExists(name)) + { + wxFileInputStream stream(name); + return CanRead(stream); + } -static void _PNG_stream_writer( png_structp png_ptr, png_bytep data, png_size_t length ) -{ - ((wxOutputStream*) png_get_io_ptr( png_ptr )) -> Write(data, length); + else { + wxLogError( wxT("Can't check image format of file '%s': file does not exist."), name.c_str() ); + + return FALSE; + } +#else // !wxUSE_STREAMS + return FALSE; +#endif // wxUSE_STREAMS } -bool wxPNGHandler::LoadFile( wxImage *image, wxInputStream& stream ) -{ - // VZ: as this function uses setjmp() the only fool proof error handling - // method is to use goto (setjmp is not really C++ dtors friendly...) - - unsigned char **lines = (unsigned char **) NULL; - unsigned int i; - png_infop info_ptr = (png_infop) NULL; - - image->Destroy(); - png_structp png_ptr = png_create_read_struct( PNG_LIBPNG_VER_STRING, - (voidp) NULL, - (png_error_ptr) NULL, - (png_error_ptr) NULL ); - if (!png_ptr) - goto error; - info_ptr = png_create_info_struct( png_ptr ); - if (!info_ptr) - goto error; +#endif // wxUSE_STREAMS - if (setjmp(png_ptr->jmpbuf)) - goto error; +//----------------------------------------------------------------------------- +// MSW conversion routines +//----------------------------------------------------------------------------- - if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - goto error; +#ifdef __WXMSW__ - png_set_read_fn( png_ptr, &stream, _PNG_stream_reader); +wxBitmap wxImage::ConvertToBitmap() const +{ + if ( !Ok() ) + return wxNullBitmap; - png_uint_32 width,height; - int bit_depth,color_type,interlace_type; + // sizeLimit is the MS upper limit for the DIB size +#ifdef WIN32 + int sizeLimit = 1024*768*3; +#else + int sizeLimit = 0x7fff ; +#endif - png_read_info( png_ptr, info_ptr ); - png_get_IHDR( png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_type, (int*) NULL, (int*) NULL ); + // width and height of the device-dependent bitmap + int width = GetWidth(); + int bmpHeight = GetHeight(); - if (color_type == PNG_COLOR_TYPE_PALETTE) - png_set_expand( png_ptr ); + // calc the number of bytes per scanline and padding + int bytePerLine = width*3; + int sizeDWORD = sizeof( DWORD ); + int lineBoundary = bytePerLine % sizeDWORD; + int padding = 0; + if( lineBoundary > 0 ) + { + padding = sizeDWORD - lineBoundary; + bytePerLine += padding; + } + // calc the number of DIBs and heights of DIBs + int numDIB = 1; + int hRemain = 0; + int height = sizeLimit/bytePerLine; + if( height >= bmpHeight ) + height = bmpHeight; + else + { + numDIB = bmpHeight / height; + hRemain = bmpHeight % height; + if( hRemain >0 ) numDIB++; + } - png_set_strip_16( png_ptr ); - png_set_packing( png_ptr ); - if (png_get_valid( png_ptr, info_ptr, PNG_INFO_tRNS)) - png_set_expand( png_ptr ); - png_set_filler( png_ptr, 0xff, PNG_FILLER_AFTER ); + // set bitmap parameters + wxBitmap bitmap; + wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); + bitmap.SetWidth( width ); + bitmap.SetHeight( bmpHeight ); + bitmap.SetDepth( wxDisplayDepth() ); - image->Create( width, height ); + // create a DIB header + int headersize = sizeof(BITMAPINFOHEADER); + LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); + wxCHECK_MSG( lpDIBh, bitmap, wxT("could not allocate memory for DIB header") ); + // Fill in the DIB header + lpDIBh->bmiHeader.biSize = headersize; + lpDIBh->bmiHeader.biWidth = (DWORD)width; + lpDIBh->bmiHeader.biHeight = (DWORD)(-height); + lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; + // the general formula for biSizeImage: + // ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height; + lpDIBh->bmiHeader.biPlanes = 1; + lpDIBh->bmiHeader.biBitCount = 24; + lpDIBh->bmiHeader.biCompression = BI_RGB; + lpDIBh->bmiHeader.biClrUsed = 0; + // These seem not really needed for our purpose here. + lpDIBh->bmiHeader.biClrImportant = 0; + lpDIBh->bmiHeader.biXPelsPerMeter = 0; + lpDIBh->bmiHeader.biYPelsPerMeter = 0; + // memory for DIB data + unsigned char *lpBits; + lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage ); + if( !lpBits ) + { + wxFAIL_MSG( wxT("could not allocate memory for DIB") ); + free( lpDIBh ); + return bitmap; + } - if (!image->Ok()) - goto error; + // create and set the device-dependent bitmap + HDC hdc = ::GetDC(NULL); + HDC memdc = ::CreateCompatibleDC( hdc ); + HBITMAP hbitmap; + hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight ); + ::SelectObject( memdc, hbitmap); - lines = (unsigned char **)malloc( height * sizeof(unsigned char *) ); - if (lines == NULL) - goto error; + // copy image data into DIB data and then into DDB (in a loop) + unsigned char *data = GetData(); + int i, j, n; + int origin = 0; + unsigned char *ptdata = data; + unsigned char *ptbits; - for (i = 0; i < height; i++) + for( n=0; n 1 && n == numDIB-1 && hRemain > 0 ) { - for ( unsigned int n = 0; n < i; n++ ) - free( lines[n] ); - goto error; + // redefine height and size of the (possibly) last smaller DIB + // memory is not reallocated + height = hRemain; + lpDIBh->bmiHeader.biHeight = (DWORD)(-height); + lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; + } + ptbits = lpBits; + + for( j=0; jbmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS ); + // The above line is equivalent to the following two lines. + // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); + // ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS); + // or the following lines + // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); + // HDC memdc = ::CreateCompatibleDC( hdc ); + // ::SelectObject( memdc, hbitmap); + // ::SetDIBitsToDevice( memdc, 0, 0, width, height, + // 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS); + // ::SelectObject( memdc, 0 ); + // ::DeleteDC( memdc ); } + bitmap.SetHBITMAP( (WXHBITMAP) hbitmap ); - // loaded successfully! + // similarly, created an mono-bitmap for the possible mask + if( HasMask() ) { - int transp = 0; - png_read_image( png_ptr, lines ); - png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL ); - unsigned char *ptr = image->GetData(); - if ((color_type == PNG_COLOR_TYPE_GRAY) || - (color_type == PNG_COLOR_TYPE_GRAY_ALPHA)) + hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL ); + ::SelectObject( memdc, hbitmap); + if( numDIB == 1 ) height = bmpHeight; + else height = sizeLimit/bytePerLine; + lpDIBh->bmiHeader.biHeight = (DWORD)(-height); + lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; + origin = 0; + unsigned char r = GetMaskRed(); + unsigned char g = GetMaskGreen(); + unsigned char b = GetMaskBlue(); + unsigned char zero = 0, one = 255; + ptdata = data; + for( n=0; n 1 && n == numDIB - 1 && hRemain > 0 ) + { + // redefine height and size of the (possibly) last smaller DIB + // memory is not reallocated + height = hRemain; + lpDIBh->bmiHeader.biHeight = (DWORD)(-height); + lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; + } + ptbits = lpBits; + for( int j=0; jSetMaskColour( 255, 0, 255 ); - } - else - { - image->SetMask( FALSE ); - } - } - - return TRUE; - -error: - wxLogError(_("Couldn't load a PNG image - probably file is corrupted.")); - - if ( image->Ok() ) - { - image->Destroy(); - } - - if ( lines ) - { - free( lines ); - } - - if ( png_ptr ) - { - if ( info_ptr ) - { - png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL ); - free(info_ptr); - } - else - png_destroy_read_struct( &png_ptr, (png_infopp) NULL, (png_infopp) NULL ); - } - return FALSE; -} - - -bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream ) -{ - { - png_structp png_ptr = png_create_write_struct( PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); - if (!png_ptr) - { - return FALSE; - } - - png_infop info_ptr = png_create_info_struct(png_ptr); - if (info_ptr == NULL) - { - png_destroy_write_struct( &png_ptr, (png_infopp)NULL ); - return FALSE; - } - - if (setjmp(png_ptr->jmpbuf)) - { - png_destroy_write_struct( &png_ptr, (png_infopp)NULL ); - return FALSE; - } - - png_set_write_fn( png_ptr, &stream, _PNG_stream_writer, NULL); - - png_set_IHDR( png_ptr, info_ptr, image->GetWidth(), image->GetHeight(), 8, - PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE, - PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); - - png_color_8 sig_bit; - sig_bit.red = 8; - sig_bit.green = 8; - sig_bit.blue = 8; - sig_bit.alpha = 8; - png_set_sBIT( png_ptr, info_ptr, &sig_bit ); - png_write_info( png_ptr, info_ptr ); - png_set_shift( png_ptr, &sig_bit ); - png_set_packing( png_ptr ); - - unsigned char *data = (unsigned char *)malloc( image->GetWidth()*4 ); - if (!data) - { - png_destroy_write_struct( &png_ptr, (png_infopp)NULL ); - return FALSE; - } - - for (int y = 0; y < image->GetHeight(); y++) - { - unsigned char *ptr = image->GetData() + (y * image->GetWidth() * 3); - for (int x = 0; x < image->GetWidth(); x++) - { - data[(x << 2) + 0] = *ptr++; - data[(x << 2) + 1] = *ptr++; - data[(x << 2) + 2] = *ptr++; - if ((data[(x << 2) + 0] == image->GetMaskRed()) && - (data[(x << 2) + 1] == image->GetMaskGreen()) && - (data[(x << 2) + 2] == image->GetMaskBlue())) - { - data[(x << 2) + 3] = 0; - } - else - { - data[(x << 2) + 3] = 255; - } - } - png_bytep row_ptr = data; - png_write_rows( png_ptr, &row_ptr, 1 ); - } - - free(data); - png_write_end( png_ptr, info_ptr ); - png_destroy_write_struct( &png_ptr, (png_infopp)&info_ptr ); - } - return TRUE; -} - -#endif - - // wxUSE_LIBPNG - -//----------------------------------------------------------------------------- -// wxBMPHandler -//----------------------------------------------------------------------------- - -#if !USE_SHARED_LIBRARIES -IMPLEMENT_DYNAMIC_CLASS(wxBMPHandler,wxImageHandler) -#endif - -bool wxBMPHandler::LoadFile( wxImage *image, wxInputStream& stream ) -{ - unsigned char *data, *ptr; - int done, i, bpp, planes, comp, ncolors, line, column, - linesize, linepos, rshift = 0, gshift = 0, bshift = 0; - unsigned char aByte; - short int word; - long int dbuf[4], dword, rmask = 0, gmask = 0, bmask = 0, offset, - size; - off_t start_offset = stream.TellI(); - signed char bbuf[4]; - struct _cmap - { - unsigned char r, g, b; - } - *cmap = NULL; -#ifndef BI_RGB -#define BI_RGB 0 -#define BI_RLE8 1 -#define BI_RLE4 2 -#endif - -#ifndef BI_BITFIELDS -#define BI_BITFIELDS 3 -#endif - - image->Destroy(); - - done = 0; - /* - * Reading the bmp header - */ - - stream.Read(&bbuf, 2); - - stream.Read(dbuf, 4 * 4); - - size = dbuf[0]; - offset = dbuf[2]; - - stream.Read(dbuf, 4 * 2); - int width = (int)dbuf[0]; - int height = (int)dbuf[1]; - if (width > 32767) - { - wxLogError( "Image width > 32767 pixels for file\n" ); - return FALSE; - } - if (height > 32767) - { - wxLogError( "Image height > 32767 pixels for file\n" ); - return FALSE; - } - stream.Read(&word, 2); - planes = (int)word; - stream.Read(&word, 2); - bpp = (int)word; - if (bpp != 1 && bpp != 4 && bpp != 8 && bpp && 16 && bpp != 24 && bpp != 32) - { - wxLogError( "unknown bitdepth in file\n" ); - return FALSE; - } - stream.Read(dbuf, 4 * 4); - comp = (int)dbuf[0]; - if (comp != BI_RGB && comp != BI_RLE4 && comp != BI_RLE8 && comp != BI_BITFIELDS) - { - wxLogError( "unknown encoding in Windows BMP file\n" ); - return FALSE; - } - stream.Read(dbuf, 4 * 2); - ncolors = (int)dbuf[0]; - if (ncolors == 0) - ncolors = 1 << bpp; - /* some more sanity checks */ - if (((comp == BI_RLE4) && (bpp != 4)) || ((comp == BI_RLE8) && (bpp != 8)) || ((comp == BI_BITFIELDS) && (bpp != 16 && bpp != 32))) - { - wxLogError( "encoding of BMP doesn't match bitdepth\n" ); - return FALSE; - } - if (bpp < 16) - { - cmap = (struct _cmap *)malloc(sizeof(struct _cmap) * ncolors); - - if (!cmap) - { - wxLogError( "Cannot allocate RAM for color map in BMP file\n" ); - return FALSE; - } - } - else - cmap = NULL; - - image->Create( width, height ); - ptr = image->GetData(); - if (!ptr) - { - wxLogError( "Cannot allocate RAM for RGB data in file\n" ); - if (cmap) - free(cmap); - return FALSE; - } - - /* - * Reading the palette, if it exists. - */ - if (bpp < 16 && ncolors != 0) - { - for (i = 0; i < ncolors; i++) - { - stream.Read(bbuf, 4); - cmap[i].b = bbuf[0]; - cmap[i].g = bbuf[1]; - cmap[i].r = bbuf[2]; - } - } - else if (bpp == 16 || bpp == 32) - { - if (comp == BI_BITFIELDS) - { - int bit = 0; - - stream.Read(dbuf, 4 * 3); - bmask = dbuf[0]; - gmask = dbuf[1]; - rmask = dbuf[2]; - /* find shift amount.. ugly, but i can't think of a better way */ - for (bit = 0; bit < bpp; bit++) - { - if (bmask & (1 << bit)) - bshift = bit; - if (gmask & (1 << bit)) - gshift = bit; - if (rmask & (1 << bit)) - rshift = bit; - } - } - else if (bpp == 16) - { - rmask = 0x7C00; - gmask = 0x03E0; - bmask = 0x001F; - rshift = 10; - gshift = 5; - bshift = 0; - } - else if (bpp == 32) - { - rmask = 0x00FF0000; - gmask = 0x0000FF00; - bmask = 0x000000FF; - rshift = 16; - gshift = 8; - bshift = 0; - } - } - - /* - * Reading the image data - */ - stream.SeekI(start_offset + offset); - data = ptr; - - /* set the whole image to the background color */ - if (bpp < 16 && (comp == BI_RLE4 || comp == BI_RLE8)) - { - for (i = 0; i < width * height; i++) - { - *ptr++ = cmap[0].r; - *ptr++ = cmap[0].g; - *ptr++ = cmap[0].b; - } - ptr = data; - } - line = 0; - column = 0; -#define poffset (line * width * 3 + column * 3) - - /* - * BMPs are stored upside down... hmmmmmmmmmm.... - */ - - linesize = ((width * bpp + 31) / 32) * 4; - for (line = (height - 1); line >= 0; line--) - { - linepos = 0; - for (column = 0; column < width;) - { - if (bpp < 16) - { - int index; - - linepos++; - aByte = stream.GetC(); - if (bpp == 1) - { - int bit = 0; - - for (bit = 0; bit < 8; bit++) - { - index = ((aByte & (0x80 >> bit)) ? 1 : 0); - ptr[poffset] = cmap[index].r; - ptr[poffset + 1] = cmap[index].g; - ptr[poffset + 2] = cmap[index].b; - column++; - } - } - else if (bpp == 4) - { - if (comp == BI_RLE4) - { - wxLogError( "can't deal with 4bit encoded yet.\n"); - image->Destroy(); - free(cmap); - return FALSE; - } - else - { - int nibble = 0; - - for (nibble = 0; nibble < 2; nibble++) - { - index = ((aByte & (0xF0 >> nibble * 4)) >> (!nibble * 4)); - if (index >= 16) - index = 15; - ptr[poffset] = cmap[index].r; - ptr[poffset + 1] = cmap[index].g; - ptr[poffset + 2] = cmap[index].b; - column++; - } - } - } - else if (bpp == 8) - { - if (comp == BI_RLE8) - { - unsigned char first; - - first = aByte; - aByte = stream.GetC(); - if (first == 0) - { - if (aByte == 0) - { -/* column = width; */ - } - else if (aByte == 1) - { - column = width; - line = -1; - } - else if (aByte == 2) - { - aByte = stream.GetC(); - column += aByte; - linepos = column * bpp / 8; - aByte = stream.GetC(); - line += aByte; - } - else - { - int absolute = aByte; - - for (i = 0; i < absolute; i++) - { - linepos++; - aByte = stream.GetC(); - ptr[poffset] = cmap[aByte].r; - ptr[poffset + 1] = cmap[aByte].g; - ptr[poffset + 2] = cmap[aByte].b; - column++; - } - if (absolute & 0x01) - aByte = stream.GetC(); - } - } - else - { - for (i = 0; i < first; i++) - { - ptr[poffset] = cmap[aByte].r; - ptr[poffset + 1] = cmap[aByte].g; - ptr[poffset + 2] = cmap[aByte].b; - column++; - linepos++; - } - } - } - else - { - ptr[poffset] = cmap[aByte].r; - ptr[poffset + 1] = cmap[aByte].g; - ptr[poffset + 2] = cmap[aByte].b; - column++; - linepos += size; - } - } - } - else if (bpp == 24) - { - stream.Read(&bbuf, 3); - linepos += 3; - ptr[poffset] = (unsigned char)bbuf[2]; - ptr[poffset + 1] = (unsigned char)bbuf[1]; - ptr[poffset + 2] = (unsigned char)bbuf[0]; - column++; - } - else if (bpp == 16) - { - unsigned char temp; - - stream.Read(&word, 2); - linepos += 2; - temp = (word & rmask) >> rshift; - ptr[poffset] = temp; - temp = (word & gmask) >> gshift; - ptr[poffset + 1] = temp; - temp = (word & bmask) >> gshift; - ptr[poffset + 2] = temp; - column++; - } - else - { - unsigned char temp; - - stream.Read(&dword, 4); - linepos += 4; - temp = (dword & rmask) >> rshift; - ptr[poffset] = temp; - temp = (dword & gmask) >> gshift; - ptr[poffset + 1] = temp; - temp = (dword & bmask) >> bshift; - ptr[poffset + 2] = temp; - column++; - } - } - while ((linepos < linesize) && (comp != 1) && (comp != 2)) - { - stream.Read(&aByte, 1); - linepos += 1; - if (stream.LastError() != wxStream_NOERROR) - break; - } - } - if (cmap) free(cmap); - - image->SetMask( FALSE ); - - return TRUE; -} - -#ifdef __WXMSW__ - -wxBitmap wxImage::ConvertToBitmap() const -{ -// sizeLimit is the MS upper limit for the DIB size - int sizeLimit = 1024*768*3; - -// width and height of the device-dependent bitmap - int width = GetWidth(); - int bmpHeight = GetHeight(); - -// calc the number of bytes per scanline and padding - int bytePerLine = width*3; - int sizeDWORD = sizeof( DWORD ); - div_t lineBoundary = div( bytePerLine, sizeDWORD ); - int padding = 0; - if( lineBoundary.rem > 0 ) - { - padding = sizeDWORD - lineBoundary.rem; - bytePerLine += padding; - } -// calc the number of DIBs and heights of DIBs - int numDIB = 1; - int hRemain = 0; - int height = sizeLimit/bytePerLine; - if( height >= bmpHeight ) - height = bmpHeight; - else - { - div_t result = div( bmpHeight, height ); - numDIB = result.quot; - hRemain = result.rem; - if( hRemain >0 ) numDIB++; - } - -// set bitmap parameters - wxBitmap bitmap; - wxCHECK_MSG( Ok(), bitmap, "invalid image" ); - bitmap.SetWidth( width ); - bitmap.SetHeight( bmpHeight ); - bitmap.SetDepth( wxDisplayDepth() ); - -// create a DIB header - int headersize = sizeof(BITMAPINFOHEADER); - LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); - wxCHECK_MSG( lpDIBh, bitmap, "could not allocate memory for DIB header" ); -// Fill in the DIB header - lpDIBh->bmiHeader.biSize = headersize; - lpDIBh->bmiHeader.biWidth = (DWORD)width; - lpDIBh->bmiHeader.biHeight = (DWORD)(-height); - lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; -// the general formula for biSizeImage: -// ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height; - lpDIBh->bmiHeader.biPlanes = 1; - lpDIBh->bmiHeader.biBitCount = 24; - lpDIBh->bmiHeader.biCompression = BI_RGB; - lpDIBh->bmiHeader.biClrUsed = 0; -// These seem not really needed for our purpose here. - lpDIBh->bmiHeader.biClrImportant = 0; - lpDIBh->bmiHeader.biXPelsPerMeter = 0; - lpDIBh->bmiHeader.biYPelsPerMeter = 0; -// memory for DIB data - unsigned char *lpBits; - lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage ); - if( !lpBits ) - { - wxFAIL_MSG( "could not allocate memory for DIB" ); - free( lpDIBh ); - return bitmap; - } - -// create and set the device-dependent bitmap - HDC hdc = ::GetDC(NULL); - HDC memdc = ::CreateCompatibleDC( hdc ); - HBITMAP hbitmap; - hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight ); - ::SelectObject( memdc, hbitmap); - -// copy image data into DIB data and then into DDB (in a loop) - unsigned char *data = GetData(); - int i, j, n; - int origin = 0; - unsigned char *ptdata = data; - unsigned char *ptbits; - - for( n=0; n 1 && n == numDIB-1 && hRemain > 0 ) - { - // redefine height and size of the (possibly) last smaller DIB - // memory is not reallocated - height = hRemain; - lpDIBh->bmiHeader.biHeight = (DWORD)(-height); - lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; - } - ptbits = lpBits; - - for( j=0; jbmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS ); -// The above line is equivalent to the following two lines. -// hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); -// ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS); -// or the following lines -// hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); -// HDC memdc = ::CreateCompatibleDC( hdc ); -// ::SelectObject( memdc, hbitmap); -// ::SetDIBitsToDevice( memdc, 0, 0, width, height, -// 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS); -// ::SelectObject( memdc, 0 ); -// ::DeleteDC( memdc ); - } - bitmap.SetHBITMAP( (WXHBITMAP) hbitmap ); - -// similarly, created an mono-bitmap for the possible mask - if( HasMask() ) - { - hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL ); - ::SelectObject( memdc, hbitmap); - if( numDIB == 1 ) height = bmpHeight; - else height = sizeLimit/bytePerLine; - lpDIBh->bmiHeader.biHeight = (DWORD)(-height); - lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; - origin = 0; - unsigned char r = GetMaskRed(); - unsigned char g = GetMaskGreen(); - unsigned char b = GetMaskBlue(); - unsigned char zero = 0, one = 255; - ptdata = data; - for( n=0; n 1 && n == numDIB - 1 && hRemain > 0 ) - { - // redefine height and size of the (possibly) last smaller DIB - // memory is not reallocated - height = hRemain; - lpDIBh->bmiHeader.biHeight = (DWORD)(-height); - lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; - } - ptbits = lpBits; - for( int j=0; jSetMaskBitmap( (WXHBITMAP) hbitmap ); bitmap.SetMask( mask ); -// It will be deleted when the wxBitmap object is deleted (as of 01/1999) -/* The following can also be used but is slow to run + // It will be deleted when the wxBitmap object is deleted (as of 01/1999) + /* The following can also be used but is slow to run wxColour colour( GetMaskRed(), GetMaskGreen(), GetMaskBlue()); wxMask *mask = new wxMask( bitmap, colour ); bitmap.SetMask( mask ); -*/ + */ } -// free allocated resources - ::SelectObject( memdc, 0 ); - ::DeleteDC( memdc ); - ::ReleaseDC(NULL, hdc); + // free allocated resources + ::SelectObject( memdc, 0 ); + ::DeleteDC( memdc ); + ::ReleaseDC(NULL, hdc); free(lpDIBh); free(lpBits); -// check the wxBitmap object + // check the wxBitmap object if( bitmap.GetHBITMAP() ) bitmap.SetOk( TRUE ); else bitmap.SetOk( FALSE ); - + return bitmap; } wxImage::wxImage( const wxBitmap &bitmap ) { -// check the bitmap + // check the bitmap if( !bitmap.Ok() ) { - wxFAIL_MSG( "invalid bitmap" ); + wxFAIL_MSG( wxT("invalid bitmap") ); return; } -// create an wxImage object + // create an wxImage object int width = bitmap.GetWidth(); int height = bitmap.GetHeight(); - Create( width, height ); + Create( width, height ); unsigned char *data = GetData(); if( !data ) { - wxFAIL_MSG( "could not allocate data for image" ); + wxFAIL_MSG( wxT("could not allocate data for image") ); return; } -// calc the number of bytes per scanline and padding in the DIB + // calc the number of bytes per scanline and padding in the DIB int bytePerLine = width*3; int sizeDWORD = sizeof( DWORD ); - div_t lineBoundary = div( bytePerLine, sizeDWORD ); + int lineBoundary = bytePerLine % sizeDWORD; int padding = 0; - if( lineBoundary.rem > 0 ) + if( lineBoundary > 0 ) { - padding = sizeDWORD - lineBoundary.rem; + padding = sizeDWORD - lineBoundary; bytePerLine += padding; } -// create a DIB header + // create a DIB header int headersize = sizeof(BITMAPINFOHEADER); LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); if( !lpDIBh ) { - wxFAIL_MSG( "could not allocate data for DIB header" ); + wxFAIL_MSG( wxT("could not allocate data for DIB header") ); free( data ); return; } -// Fill in the DIB header + // Fill in the DIB header lpDIBh->bmiHeader.biSize = headersize; lpDIBh->bmiHeader.biWidth = width; lpDIBh->bmiHeader.biHeight = -height; @@ -1345,28 +952,28 @@ wxImage::wxImage( const wxBitmap &bitmap ) lpDIBh->bmiHeader.biBitCount = 24; lpDIBh->bmiHeader.biCompression = BI_RGB; lpDIBh->bmiHeader.biClrUsed = 0; -// These seem not really needed for our purpose here. + // These seem not really needed for our purpose here. lpDIBh->bmiHeader.biClrImportant = 0; lpDIBh->bmiHeader.biXPelsPerMeter = 0; lpDIBh->bmiHeader.biYPelsPerMeter = 0; -// memory for DIB data + // memory for DIB data unsigned char *lpBits; lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage ); if( !lpBits ) { - wxFAIL_MSG( "could not allocate data for DIB" ); + wxFAIL_MSG( wxT("could not allocate data for DIB") ); free( data ); free( lpDIBh ); return; } - -// copy data from the device-dependent bitmap to the DIB + + // copy data from the device-dependent bitmap to the DIB HDC hdc = ::GetDC(NULL); HBITMAP hbitmap; hbitmap = (HBITMAP) bitmap.GetHBITMAP(); ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); - -// copy DIB data into the wxImage object + + // copy DIB data into the wxImage object int i, j; unsigned char *ptdata = data; unsigned char *ptbits = lpBits; @@ -1378,22 +985,22 @@ wxImage::wxImage( const wxBitmap &bitmap ) *(ptdata++) = *(ptbits+1); *(ptdata++) = *(ptbits ); ptbits += 3; - } + } ptbits += padding; - } - -// similarly, set data according to the possible mask bitmap + } + + // similarly, set data according to the possible mask bitmap if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() ) { hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap(); - // memory DC created, color set, data copied, and memory DC deleted + // memory DC created, color set, data copied, and memory DC deleted HDC memdc = ::CreateCompatibleDC( hdc ); ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); - ::DeleteDC( memdc ); -// background color set to RGB(16,16,16) in consistent with wxGTK - unsigned char r=16, g=16, b=16; + ::DeleteDC( memdc ); + // background color set to RGB(16,16,16) in consistent with wxGTK + unsigned char r=16, g=16, b=16; ptdata = data; ptbits = lpBits; for( i=0; i + +extern CTabHandle wxMacCreateColorTable( int numColors ) ; +extern void wxMacDestroyColorTable( CTabHandle colors ) ; +extern void wxMacSetColorTableEntry( CTabHandle newColors , int index , int red , int green , int blue ) ; +extern GWorldPtr wxMacCreateGWorld( int height , int width , int depth ) ; +extern void wxMacDestroyGWorld( GWorldPtr gw ) ; + +wxBitmap wxImage::ConvertToBitmap() const +{ + // width and height of the device-dependent bitmap + int width = GetWidth(); + int height = GetHeight(); + + // Create picture + + wxBitmap bitmap( width , height , wxDisplayDepth() ) ; + + // Create mask + + if (HasMask()) + { + /* + unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); + + mask_image = gdk_image_new_bitmap( gdk_visual_get_system(), mask_data, width, height ); + + wxMask *mask = new wxMask(); + mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 ); + + bitmap.SetMask( mask ); + */ + } + + // Render + + int r_mask = GetMaskRed(); + int g_mask = GetMaskGreen(); + int b_mask = GetMaskBlue(); + + CGrafPtr origPort ; + GDHandle origDevice ; + + GetGWorld( &origPort , &origDevice ) ; + SetGWorld( bitmap.GetHBITMAP() , NULL ) ; + + register unsigned char* data = GetData(); + + int index = 0; + for (int y = 0; y < height; y++) + { +#if 0 + unsigned char lastr = 0 ; + unsigned char lastg = 0 ; + unsigned char lastb = 0 ; + RGBColor lastcolor ; + + MoveTo( 0 , y ) ; + for (int x = 0; x < width; x++) + { + unsigned char r = data[index++]; + unsigned char g = data[index++]; + unsigned char b = data[index++]; + + if ( r != lastr || g != lastg || b != lastb ) + { + lastcolor.red = ( lastr << 8 ) + lastr ; + lastcolor.green = ( lastg << 8 ) + lastg ; + lastcolor.blue = ( lastb << 8 ) + lastb ; + RGBForeColor( &lastcolor ) ; + LineTo( x , y ) ; + lastr = r ; + lastg = g ; + lastb = b ; + } + } // for width + lastcolor.red = ( lastr << 8 ) + lastr ; + lastcolor.green = ( lastg << 8 ) + lastg ; + lastcolor.blue = ( lastb << 8 ) + lastb ; + RGBForeColor( &lastcolor ) ; + LineTo( width - 1 , y ) ; +#else + for (int x = 0; x < width; x++) + { + unsigned char r = data[index++]; + unsigned char g = data[index++]; + unsigned char b = data[index++]; + RGBColor color ; + color.red = ( r << 8 ) + r ; + color.green = ( g << 8 ) + g ; + color.blue = ( b << 8 ) + b ; + SetCPixel( x , y , &color ) ; + } +#endif + } // for height + + SetGWorld( origPort , origDevice ) ; + + return bitmap; + +} + +wxImage::wxImage( const wxBitmap &bitmap ) +{ + // check the bitmap + if( !bitmap.Ok() ) + { + wxFAIL_MSG( "invalid bitmap" ); + return; + } + + // create an wxImage object + int width = bitmap.GetWidth(); + int height = bitmap.GetHeight(); + Create( width, height ); + /* + unsigned char *data = GetData(); + if( !data ) + { + wxFAIL_MSG( "could not allocate data for image" ); + return; + } + + // calc the number of bytes per scanline and padding in the DIB + int bytePerLine = width*3; + int sizeDWORD = sizeof( DWORD ); + div_t lineBoundary = div( bytePerLine, sizeDWORD ); + int padding = 0; + if( lineBoundary.rem > 0 ) + { + padding = sizeDWORD - lineBoundary.rem; + bytePerLine += padding; + } + + // create a DIB header + int headersize = sizeof(BITMAPINFOHEADER); + LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); + if( !lpDIBh ) + { + wxFAIL_MSG( "could not allocate data for DIB header" ); + free( data ); + return; + } + // Fill in the DIB header + lpDIBh->bmiHeader.biSize = headersize; + lpDIBh->bmiHeader.biWidth = width; + lpDIBh->bmiHeader.biHeight = -height; + lpDIBh->bmiHeader.biSizeImage = bytePerLine * height; + lpDIBh->bmiHeader.biPlanes = 1; + lpDIBh->bmiHeader.biBitCount = 24; + lpDIBh->bmiHeader.biCompression = BI_RGB; + lpDIBh->bmiHeader.biClrUsed = 0; + // These seem not really needed for our purpose here. + lpDIBh->bmiHeader.biClrImportant = 0; + lpDIBh->bmiHeader.biXPelsPerMeter = 0; + lpDIBh->bmiHeader.biYPelsPerMeter = 0; + // memory for DIB data + unsigned char *lpBits; + lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage ); + if( !lpBits ) + { + wxFAIL_MSG( "could not allocate data for DIB" ); + free( data ); + free( lpDIBh ); + return; + } + + // copy data from the device-dependent bitmap to the DIB + HDC hdc = ::GetDC(NULL); + HBITMAP hbitmap; + hbitmap = (HBITMAP) bitmap.GetHBITMAP(); + ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); + + // copy DIB data into the wxImage object + int i, j; + unsigned char *ptdata = data; + unsigned char *ptbits = lpBits; + for( i=0; iGetMaskBitmap() ) + { + hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap(); + // memory DC created, color set, data copied, and memory DC deleted + HDC memdc = ::CreateCompatibleDC( hdc ); + ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); + ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); + ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); + ::DeleteDC( memdc ); + // background color set to RGB(16,16,16) in consistent with wxGTK + unsigned char r=16, g=16, b=16; + ptdata = data; + ptbits = lpBits; + for( i=0; i 0) +#include "gdk/gdkrgb.h" +#endif + wxBitmap wxImage::ConvertToBitmap() const { wxBitmap bitmap; - wxCHECK_MSG( Ok(), bitmap, "invalid image" ); + wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); int width = GetWidth(); int height = GetHeight(); @@ -1445,14 +1297,54 @@ wxBitmap wxImage::ConvertToBitmap() const bitmap.SetHeight( height ); bitmap.SetWidth( width ); - // Create picture + bitmap.SetPixmap( gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, -1 ) ); - GdkImage *data_image = - gdk_image_new( GDK_IMAGE_FASTEST, gdk_visual_get_system(), width, height ); + // Retrieve depth - bitmap.SetPixmap( gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, -1 ) ); + GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() ); + if (visual == NULL) visual = gdk_visual_get_system(); + int bpp = visual->depth; - // Create mask + bitmap.SetDepth( bpp ); + + if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15; + if (bpp < 8) bpp = 8; + +#if (GTK_MINOR_VERSION > 0) + + if (!HasMask() && (bpp > 8)) + { + static bool s_hasInitialized = FALSE; + + if (!s_hasInitialized) + { + gdk_rgb_init(); + s_hasInitialized = TRUE; + } + + GdkGC *gc = gdk_gc_new( bitmap.GetPixmap() ); + + gdk_draw_rgb_image( bitmap.GetPixmap(), + gc, + 0, 0, + width, height, + GDK_RGB_DITHER_NONE, + GetData(), + width*3 ); + + gdk_gc_unref( gc ); + + return bitmap; + } + +#endif + + // Create picture image + + GdkImage *data_image = + gdk_image_new( GDK_IMAGE_FASTEST, gdk_visual_get_system(), width, height ); + + // Create mask image GdkImage *mask_image = (GdkImage*) NULL; @@ -1468,17 +1360,6 @@ wxBitmap wxImage::ConvertToBitmap() const bitmap.SetMask( mask ); } - // Retrieve depth - - GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() ); - if (visual == NULL) visual = gdk_window_get_visual( (GdkWindow*) &gdk_root_parent ); - int bpp = visual->depth; - - bitmap.SetDepth( bpp ); - - if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15; - if (bpp < 8) bpp = 8; - // Render enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR }; @@ -1531,7 +1412,7 @@ wxBitmap wxImage::ConvertToBitmap() const switch (bpp) { - case 8: + case 8: { int pixel = -1; if (wxTheApp->m_colorCube) @@ -1558,34 +1439,34 @@ wxBitmap wxImage::ConvertToBitmap() const break; } - case 15: + case 15: { guint32 pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); gdk_image_put_pixel( data_image, x, y, pixel ); break; } - case 16: + case 16: { guint32 pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); gdk_image_put_pixel( data_image, x, y, pixel ); break; } - case 32: - case 24: + case 32: + case 24: { guint32 pixel = 0; switch (b_o) { - case RGB: pixel = (r << 16) | (g << 8) | b; break; - case RBG: pixel = (r << 16) | (b << 8) | g; break; - case BRG: pixel = (b << 16) | (r << 8) | g; break; - case BGR: pixel = (b << 16) | (g << 8) | r; break; - case GRB: pixel = (g << 16) | (r << 8) | b; break; - case GBR: pixel = (g << 16) | (b << 8) | r; break; + case RGB: pixel = (r << 16) | (g << 8) | b; break; + case RBG: pixel = (r << 16) | (b << 8) | g; break; + case BRG: pixel = (b << 16) | (r << 8) | g; break; + case BGR: pixel = (b << 16) | (g << 8) | r; break; + case GRB: pixel = (g << 16) | (r << 8) | b; break; + case GBR: pixel = (g << 16) | (b << 8) | r; break; } gdk_image_put_pixel( data_image, x, y, pixel ); } - default: break; + default: break; } } // for } // for @@ -1616,13 +1497,26 @@ wxBitmap wxImage::ConvertToBitmap() const wxImage::wxImage( const wxBitmap &bitmap ) { - wxCHECK_RET( bitmap.Ok(), "invalid bitmap" ); + wxCHECK_RET( bitmap.Ok(), wxT("invalid bitmap") ); - GdkImage *gdk_image = gdk_image_get( bitmap.GetPixmap(), - 0, 0, - bitmap.GetWidth(), bitmap.GetHeight() ); + GdkImage *gdk_image = (GdkImage*) NULL; + if (bitmap.GetPixmap()) + { + gdk_image = gdk_image_get( bitmap.GetPixmap(), + 0, 0, + bitmap.GetWidth(), bitmap.GetHeight() ); + } else + if (bitmap.GetBitmap()) + { + gdk_image = gdk_image_get( bitmap.GetBitmap(), + 0, 0, + bitmap.GetWidth(), bitmap.GetHeight() ); + } else + { + wxFAIL_MSG( wxT("Ill-formed bitmap") ); + } - wxCHECK_RET( gdk_image, "couldn't create image" ); + wxCHECK_RET( gdk_image, wxT("couldn't create image") ); Create( bitmap.GetWidth(), bitmap.GetHeight() ); char unsigned *data = GetData(); @@ -1630,7 +1524,7 @@ wxImage::wxImage( const wxBitmap &bitmap ) if (!data) { gdk_image_destroy( gdk_image ); - wxFAIL_MSG( "couldn't create image" ); + wxFAIL_MSG( wxT("couldn't create image") ); return; } @@ -1638,13 +1532,18 @@ wxImage::wxImage( const wxBitmap &bitmap ) if (bitmap.GetMask()) { gdk_image_mask = gdk_image_get( bitmap.GetMask()->GetBitmap(), - 0, 0, - bitmap.GetWidth(), bitmap.GetHeight() ); + 0, 0, + bitmap.GetWidth(), bitmap.GetHeight() ); SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable } - GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() ); + GdkVisual *visual = (GdkVisual*) NULL; + if (bitmap.GetPixmap()) + visual = gdk_window_get_visual( bitmap.GetPixmap() ); + else + visual = gdk_window_get_visual( bitmap.GetBitmap() ); + if (visual == NULL) visual = gdk_window_get_visual( (GdkWindow*) &gdk_root_parent ); int bpp = visual->depth; if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15; @@ -1656,7 +1555,8 @@ wxImage::wxImage( const wxBitmap &bitmap ) { for (int i = 0; i < bitmap.GetWidth(); i++) { - int pixel = gdk_image_get_pixel( gdk_image, i, j ); + wxInt32 pixel = gdk_image_get_pixel( gdk_image, i, j ); + // pixel = wxINT32_SWAP_ON_BE( pixel ); if (bpp <= 8) { data[pos] = cmap->colors[pixel].red >> 8; @@ -1687,7 +1587,7 @@ wxImage::wxImage( const wxBitmap &bitmap ) data[pos] = 16; data[pos+1] = 16; data[pos+2] = 16; - } + } } pos += 3; @@ -1700,6 +1600,10 @@ wxImage::wxImage( const wxBitmap &bitmap ) #endif +//----------------------------------------------------------------------------- +// Motif conversion routines +//----------------------------------------------------------------------------- + #ifdef __WXMOTIF__ #include @@ -1710,7 +1614,7 @@ wxBitmap wxImage::ConvertToBitmap() const { wxBitmap bitmap; - wxCHECK_MSG( Ok(), bitmap, "invalid image" ); + wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); int width = GetWidth(); int height = GetHeight(); @@ -1723,48 +1627,44 @@ wxBitmap wxImage::ConvertToBitmap() const int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) ); // Create image - + XImage *data_image = XCreateImage( dpy, vis, bpp, ZPixmap, 0, 0, width, height, 32, 0 ); - data_image->data = new char[ data_image->bytes_per_line * data_image->height ]; + data_image->data = (char*) malloc( data_image->bytes_per_line * data_image->height ); bitmap.Create( width, height, bpp ); -/* + /* // Create mask - GdkImage *mask_image = (GdkImage*) NULL; + GdkImage *mask_image = (GdkImage*) NULL; - if (HasMask()) - { + if (HasMask()) + { unsigned char *mask_data = (unsigned char*)malloc( ((width >> 3)+8) * height ); - mask_image = gdk_image_new_bitmap( gdk_visual_get_system(), mask_data, width, height ); + mask_image = gdk_image_new_bitmap( gdk_visual_get_system(), mask_data, width, height ); - wxMask *mask = new wxMask(); - mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 ); + wxMask *mask = new wxMask(); + mask->m_bitmap = gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, 1 ); - bitmap.SetMask( mask ); - } -*/ + bitmap.SetMask( mask ); + } + */ // Retrieve depth info - + XVisualInfo vinfo_template; XVisualInfo *vi; - + vinfo_template.visual = vis; vinfo_template.visualid = XVisualIDFromVisual( vis ); vinfo_template.depth = bpp; int nitem = 0; - + vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem ); - - if (!vi) - { - printf("no visual.\n" ); - return wxNullBitmap; - } - + + wxCHECK_MSG( vi, wxNullBitmap, wxT("no visual") ); + XFree( vi ); if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15; @@ -1785,19 +1685,19 @@ wxBitmap wxImage::ConvertToBitmap() const else if ((vi->green_mask > vi->blue_mask) && (vi->blue_mask > vi->red_mask)) b_o = GBR; } -/* + /* int r_mask = GetMaskRed(); int g_mask = GetMaskGreen(); int b_mask = GetMaskBlue(); -*/ + */ XColor colors[256]; if (bpp == 8) { - Colormap cmap = (Colormap) wxTheApp->GetMainColormap( dpy ); - + Colormap cmap = (Colormap) wxTheApp->GetMainColormap( dpy ); + for (int i = 0; i < 256; i++) colors[i].pixel = i; - XQueryColors( dpy, cmap, colors, 256 ); + XQueryColors( dpy, cmap, colors, 256 ); } unsigned char* data = GetData(); @@ -1808,80 +1708,80 @@ wxBitmap wxImage::ConvertToBitmap() const for (int x = 0; x < width; x++) { int r = data[index]; - index++; + index++; int g = data[index]; - index++; + index++; int b = data[index]; - index++; + index++; -/* - if (HasMask()) - { - if ((r == r_mask) && (b == b_mask) && (g == g_mask)) - gdk_image_put_pixel( mask_image, x, y, 1 ); - else - gdk_image_put_pixel( mask_image, x, y, 0 ); - } -*/ + /* + if (HasMask()) + { + if ((r == r_mask) && (b == b_mask) && (g == g_mask)) + gdk_image_put_pixel( mask_image, x, y, 1 ); + else + gdk_image_put_pixel( mask_image, x, y, 0 ); + } + */ - switch (bpp) - { - case 8: - { + switch (bpp) + { + case 8: + { int pixel = -1; -/* - if (wxTheApp->m_colorCube) - { - pixel = wxTheApp->m_colorCube - [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ]; - } + /* + if (wxTheApp->m_colorCube) + { + pixel = wxTheApp->m_colorCube + [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ]; + } else - { -*/ - int max = 3 * (65536); - for (int i = 0; i < 256; i++) - { - int rdiff = (r << 8) - colors[i].red; - int gdiff = (g << 8) - colors[i].green; - int bdiff = (b << 8) - colors[i].blue; - int sum = abs (rdiff) + abs (gdiff) + abs (bdiff); - if (sum < max) { pixel = i; max = sum; } - } -/* - } -*/ - XPutPixel( data_image, x, y, pixel ); - break; - } - case 15: - { - int pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); - XPutPixel( data_image, x, y, pixel ); - break; - } - case 16: - { - int pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); - XPutPixel( data_image, x, y, pixel ); - break; - } - case 32: - case 24: - { - int pixel = 0; - switch (b_o) - { - case RGB: pixel = (r << 16) | (g << 8) | b; break; - case RBG: pixel = (r << 16) | (b << 8) | g; break; - case BRG: pixel = (b << 16) | (r << 8) | g; break; - case BGR: pixel = (b << 16) | (g << 8) | r; break; - case GRB: pixel = (g << 16) | (r << 8) | b; break; - case GBR: pixel = (g << 16) | (b << 8) | r; break; - } - XPutPixel( data_image, x, y, pixel ); - } - default: break; - } + { + */ + int max = 3 * (65536); + for (int i = 0; i < 256; i++) + { + int rdiff = (r << 8) - colors[i].red; + int gdiff = (g << 8) - colors[i].green; + int bdiff = (b << 8) - colors[i].blue; + int sum = abs (rdiff) + abs (gdiff) + abs (bdiff); + if (sum < max) { pixel = i; max = sum; } + } + /* + } + */ + XPutPixel( data_image, x, y, pixel ); + break; + } + case 15: + { + int pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3); + XPutPixel( data_image, x, y, pixel ); + break; + } + case 16: + { + int pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3); + XPutPixel( data_image, x, y, pixel ); + break; + } + case 32: + case 24: + { + int pixel = 0; + switch (b_o) + { + case RGB: pixel = (r << 16) | (g << 8) | b; break; + case RBG: pixel = (r << 16) | (b << 8) | g; break; + case BRG: pixel = (b << 16) | (r << 8) | g; break; + case BGR: pixel = (b << 16) | (g << 8) | r; break; + case GRB: pixel = (g << 16) | (r << 8) | b; break; + case GBR: pixel = (g << 16) | (b << 8) | r; break; + } + XPutPixel( data_image, x, y, pixel ); + } + default: break; + } } // for } // for @@ -1895,38 +1795,38 @@ wxBitmap wxImage::ConvertToBitmap() const XDestroyImage( data_image ); XFreeGC( dpy, gc ); -/* + /* // Blit mask - if (HasMask()) - { - GdkGC *mask_gc = gdk_gc_new( bitmap.GetMask()->GetBitmap() ); + if (HasMask()) + { + GdkGC *mask_gc = gdk_gc_new( bitmap.GetMask()->GetBitmap() ); gdk_draw_image( bitmap.GetMask()->GetBitmap(), mask_gc, mask_image, 0, 0, 0, 0, width, height ); - gdk_image_destroy( mask_image ); - gdk_gc_unref( mask_gc ); - } -*/ + gdk_image_destroy( mask_image ); + gdk_gc_unref( mask_gc ); + } + */ return bitmap; } wxImage::wxImage( const wxBitmap &bitmap ) { - wxCHECK_RET( bitmap.Ok(), "invalid bitmap" ); + wxCHECK_RET( bitmap.Ok(), wxT("invalid bitmap") ); Display *dpy = (Display*) wxGetDisplay(); Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) ); int bpp = DefaultDepth( dpy, DefaultScreen( dpy ) ); - + XImage *ximage = XGetImage( dpy, - (Drawable)bitmap.GetPixmap(), - 0, 0, - bitmap.GetWidth(), bitmap.GetHeight(), - AllPlanes, ZPixmap ); + (Drawable)bitmap.GetPixmap(), + 0, 0, + bitmap.GetWidth(), bitmap.GetHeight(), + AllPlanes, ZPixmap ); - wxCHECK_RET( ximage, "couldn't create image" ); + wxCHECK_RET( ximage, wxT("couldn't create image") ); Create( bitmap.GetWidth(), bitmap.GetHeight() ); char unsigned *data = GetData(); @@ -1934,51 +1834,47 @@ wxImage::wxImage( const wxBitmap &bitmap ) if (!data) { XDestroyImage( ximage ); - wxFAIL_MSG( "couldn't create image" ); + wxFAIL_MSG( wxT("couldn't create image") ); return; } -/* + /* GdkImage *gdk_image_mask = (GdkImage*) NULL; if (bitmap.GetMask()) { - gdk_image_mask = gdk_image_get( bitmap.GetMask()->GetBitmap(), - 0, 0, - bitmap.GetWidth(), bitmap.GetHeight() ); + gdk_image_mask = gdk_image_get( bitmap.GetMask()->GetBitmap(), + 0, 0, + bitmap.GetWidth(), bitmap.GetHeight() ); - SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable - } -*/ + SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable + } + */ // Retrieve depth info - + XVisualInfo vinfo_template; XVisualInfo *vi; - + vinfo_template.visual = vis; vinfo_template.visualid = XVisualIDFromVisual( vis ); vinfo_template.depth = bpp; int nitem = 0; - + vi = XGetVisualInfo( dpy, VisualIDMask|VisualDepthMask, &vinfo_template, &nitem ); - - if (!vi) - { - printf("no visual.\n" ); - return; - } - + + wxCHECK_RET( vi, wxT("no visual") ); + if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15; - + XFree( vi ); XColor colors[256]; if (bpp == 8) { - Colormap cmap = (Colormap)wxTheApp->GetMainColormap( dpy ); - + Colormap cmap = (Colormap)wxTheApp->GetMainColormap( dpy ); + for (int i = 0; i < 256; i++) colors[i].pixel = i; - XQueryColors( dpy, cmap, colors, 256 ); + XQueryColors( dpy, cmap, colors, 256 ); } long pos = 0; @@ -1986,7 +1882,7 @@ wxImage::wxImage( const wxBitmap &bitmap ) { for (int i = 0; i < bitmap.GetWidth(); i++) { - int pixel = XGetPixel( ximage, i, j ); + int pixel = XGetPixel( ximage, i, j ); if (bpp <= 8) { data[pos] = colors[pixel].red >> 8; @@ -2009,26 +1905,376 @@ wxImage::wxImage( const wxBitmap &bitmap ) data[pos+2] = pixel & 0xff; } -/* + /* if (gdk_image_mask) { - int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j ); - if (mask_pixel == 0) - { - data[pos] = 16; - data[pos+1] = 16; - data[pos+2] = 16; - } + int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j ); + if (mask_pixel == 0) + { + data[pos] = 16; + data[pos+1] = 16; + data[pos+2] = 16; } -*/ + } + */ pos += 3; } } XDestroyImage( ximage ); -/* + /* if (gdk_image_mask) gdk_image_destroy( gdk_image_mask ); + */ +} +#endif + +#ifdef __WXPM__ +// OS/2 Presentation manager conversion routings + +wxBitmap wxImage::ConvertToBitmap() const +{ + if ( !Ok() ) + return wxNullBitmap; + wxBitmap bitmap; // remove +// TODO: +/* + int sizeLimit = 1024*768*3; + + // width and height of the device-dependent bitmap + int width = GetWidth(); + int bmpHeight = GetHeight(); + + // calc the number of bytes per scanline and padding + int bytePerLine = width*3; + int sizeDWORD = sizeof( DWORD ); + int lineBoundary = bytePerLine % sizeDWORD; + int padding = 0; + if( lineBoundary > 0 ) + { + padding = sizeDWORD - lineBoundary; + bytePerLine += padding; + } + // calc the number of DIBs and heights of DIBs + int numDIB = 1; + int hRemain = 0; + int height = sizeLimit/bytePerLine; + if( height >= bmpHeight ) + height = bmpHeight; + else + { + numDIB = bmpHeight / height; + hRemain = bmpHeight % height; + if( hRemain >0 ) numDIB++; + } + + // set bitmap parameters + wxBitmap bitmap; + wxCHECK_MSG( Ok(), bitmap, wxT("invalid image") ); + bitmap.SetWidth( width ); + bitmap.SetHeight( bmpHeight ); + bitmap.SetDepth( wxDisplayDepth() ); + + // create a DIB header + int headersize = sizeof(BITMAPINFOHEADER); + LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); + wxCHECK_MSG( lpDIBh, bitmap, wxT("could not allocate memory for DIB header") ); + // Fill in the DIB header + lpDIBh->bmiHeader.biSize = headersize; + lpDIBh->bmiHeader.biWidth = (DWORD)width; + lpDIBh->bmiHeader.biHeight = (DWORD)(-height); + lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; + // the general formula for biSizeImage: + // ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height; + lpDIBh->bmiHeader.biPlanes = 1; + lpDIBh->bmiHeader.biBitCount = 24; + lpDIBh->bmiHeader.biCompression = BI_RGB; + lpDIBh->bmiHeader.biClrUsed = 0; + // These seem not really needed for our purpose here. + lpDIBh->bmiHeader.biClrImportant = 0; + lpDIBh->bmiHeader.biXPelsPerMeter = 0; + lpDIBh->bmiHeader.biYPelsPerMeter = 0; + // memory for DIB data + unsigned char *lpBits; + lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage ); + if( !lpBits ) + { + wxFAIL_MSG( wxT("could not allocate memory for DIB") ); + free( lpDIBh ); + return bitmap; + } + + // create and set the device-dependent bitmap + HDC hdc = ::GetDC(NULL); + HDC memdc = ::CreateCompatibleDC( hdc ); + HBITMAP hbitmap; + hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight ); + ::SelectObject( memdc, hbitmap); + + // copy image data into DIB data and then into DDB (in a loop) + unsigned char *data = GetData(); + int i, j, n; + int origin = 0; + unsigned char *ptdata = data; + unsigned char *ptbits; + + for( n=0; n 1 && n == numDIB-1 && hRemain > 0 ) + { + // redefine height and size of the (possibly) last smaller DIB + // memory is not reallocated + height = hRemain; + lpDIBh->bmiHeader.biHeight = (DWORD)(-height); + lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; + } + ptbits = lpBits; + + for( j=0; jbmiHeader), CBM_INIT, lpBits, lpDIBh, DIB_RGB_COLORS ); + // The above line is equivalent to the following two lines. + // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); + // ::SetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS); + // or the following lines + // hbitmap = ::CreateCompatibleBitmap( hdc, width, height ); + // HDC memdc = ::CreateCompatibleDC( hdc ); + // ::SelectObject( memdc, hbitmap); + // ::SetDIBitsToDevice( memdc, 0, 0, width, height, + // 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS); + // ::SelectObject( memdc, 0 ); + // ::DeleteDC( memdc ); + } + bitmap.SetHBITMAP( (WXHBITMAP) hbitmap ); + + // similarly, created an mono-bitmap for the possible mask + if( HasMask() ) + { + hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL ); + ::SelectObject( memdc, hbitmap); + if( numDIB == 1 ) height = bmpHeight; + else height = sizeLimit/bytePerLine; + lpDIBh->bmiHeader.biHeight = (DWORD)(-height); + lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; + origin = 0; + unsigned char r = GetMaskRed(); + unsigned char g = GetMaskGreen(); + unsigned char b = GetMaskBlue(); + unsigned char zero = 0, one = 255; + ptdata = data; + for( n=0; n 1 && n == numDIB - 1 && hRemain > 0 ) + { + // redefine height and size of the (possibly) last smaller DIB + // memory is not reallocated + height = hRemain; + lpDIBh->bmiHeader.biHeight = (DWORD)(-height); + lpDIBh->bmiHeader.biSizeImage = bytePerLine*height; + } + ptbits = lpBits; + for( int j=0; jSetMaskBitmap( (WXHBITMAP) hbitmap ); + bitmap.SetMask( mask ); + } + + // free allocated resources + ::SelectObject( memdc, 0 ); + ::DeleteDC( memdc ); + ::ReleaseDC(NULL, hdc); + free(lpDIBh); + free(lpBits); + + // check the wxBitmap object + if( bitmap.GetHBITMAP() ) + bitmap.SetOk( TRUE ); + else + bitmap.SetOk( FALSE ); */ + return bitmap; } + +wxImage::wxImage( const wxBitmap &bitmap ) +{ + // check the bitmap + if( !bitmap.Ok() ) + { + wxFAIL_MSG( wxT("invalid bitmap") ); + return; + } + + // create an wxImage object + int width = bitmap.GetWidth(); + int height = bitmap.GetHeight(); + Create( width, height ); + unsigned char *data = GetData(); + if( !data ) + { + wxFAIL_MSG( wxT("could not allocate data for image") ); + return; + } + + // calc the number of bytes per scanline and padding in the DIB + int bytePerLine = width*3; + int sizeDWORD = sizeof( DWORD ); + int lineBoundary = bytePerLine % sizeDWORD; + int padding = 0; + if( lineBoundary > 0 ) + { + padding = sizeDWORD - lineBoundary; + bytePerLine += padding; + } +// TODO: +/* + // create a DIB header + int headersize = sizeof(BITMAPINFOHEADER); + LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); + if( !lpDIBh ) + { + wxFAIL_MSG( wxT("could not allocate data for DIB header") ); + free( data ); + return; + } + // Fill in the DIB header + lpDIBh->bmiHeader.biSize = headersize; + lpDIBh->bmiHeader.biWidth = width; + lpDIBh->bmiHeader.biHeight = -height; + lpDIBh->bmiHeader.biSizeImage = bytePerLine * height; + lpDIBh->bmiHeader.biPlanes = 1; + lpDIBh->bmiHeader.biBitCount = 24; + lpDIBh->bmiHeader.biCompression = BI_RGB; + lpDIBh->bmiHeader.biClrUsed = 0; + // These seem not really needed for our purpose here. + lpDIBh->bmiHeader.biClrImportant = 0; + lpDIBh->bmiHeader.biXPelsPerMeter = 0; + lpDIBh->bmiHeader.biYPelsPerMeter = 0; + // memory for DIB data + unsigned char *lpBits; + lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage ); + if( !lpBits ) + { + wxFAIL_MSG( wxT("could not allocate data for DIB") ); + free( data ); + free( lpDIBh ); + return; + } + + // copy data from the device-dependent bitmap to the DIB + HDC hdc = ::GetDC(NULL); + HBITMAP hbitmap; + hbitmap = (HBITMAP) bitmap.GetHBITMAP(); + ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); + + // copy DIB data into the wxImage object + int i, j; + unsigned char *ptdata = data; + unsigned char *ptbits = lpBits; + for( i=0; iGetMaskBitmap() ) + { + hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap(); + // memory DC created, color set, data copied, and memory DC deleted + HDC memdc = ::CreateCompatibleDC( hdc ); + ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); + ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); + ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); + ::DeleteDC( memdc ); + // background color set to RGB(16,16,16) in consistent with wxGTK + unsigned char r=16, g=16, b=16; + ptdata = data; + ptbits = lpBits; + for( i=0; i