X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a3ef5bf5045991260005634272633717c0a26174..b66e7a06b559e868b355b099b53aac52f04b95bb:/src/common/image.cpp?ds=sidebyside diff --git a/src/common/image.cpp b/src/common/image.cpp index a4f18c0975..800e61fa59 100644 --- a/src/common/image.cpp +++ b/src/common/image.cpp @@ -23,12 +23,13 @@ #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__ #ifdef FAR @@ -46,17 +47,17 @@ 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(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(void) @@ -100,10 +101,12 @@ wxImage::wxImage( const wxString& name, long type ) LoadFile( name, type ); } +#if wxUSE_STREAMS wxImage::wxImage( wxInputStream& stream, long type ) { LoadFile( stream, type ); } +#endif // wxUSE_STREAMS wxImage::wxImage( const wxImage& image ) { @@ -118,12 +121,12 @@ wxImage::wxImage( const wxImage* image ) void wxImage::Create( int width, int height ) { m_refData = new wxImageRefData(); - + M_IMGDATA->m_data = (unsigned char *) malloc( width*height*3 ); if (M_IMGDATA->m_data) { for (int l = 0; l < width*height*3; l++) M_IMGDATA->m_data[l] = 0; - + M_IMGDATA->m_width = width; M_IMGDATA->m_height = height; M_IMGDATA->m_ok = TRUE; @@ -142,49 +145,53 @@ void wxImage::Destroy() wxImage wxImage::Scale( int width, int height ) { wxImage image; - + wxCHECK_MSG( Ok(), image, "invlaid image" ); - + wxCHECK_MSG( (width > 0) && (height > 0), image, "invalid image size" ); - + image.Create( width, height ); - + char unsigned *data = image.GetData(); - + wxCHECK_MSG( data, image, "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; - - for (int j = 0; j < height; j++) + + long old_height = M_IMGDATA->m_height; + long old_width = M_IMGDATA->m_width; + + 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; } void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b ) { wxCHECK_RET( Ok(), "invalid image" ); - + int w = M_IMGDATA->m_width; int h = M_IMGDATA->m_height; - + wxCHECK_RET( (x>=0) && (y>=0) && (xm_data[ pos ] = r; M_IMGDATA->m_data[ pos+1 ] = g; M_IMGDATA->m_data[ pos+2 ] = b; @@ -193,42 +200,42 @@ void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned c unsigned char wxImage::GetRed( int x, int y ) { wxCHECK_MSG( Ok(), 0, "invalid image" ); - + int w = M_IMGDATA->m_width; int h = M_IMGDATA->m_height; - + wxCHECK_MSG( (x>=0) && (y>=0) && (xm_data[pos]; } unsigned char wxImage::GetGreen( int x, int y ) { wxCHECK_MSG( Ok(), 0, "invalid image" ); - + int w = M_IMGDATA->m_width; int h = M_IMGDATA->m_height; - + wxCHECK_MSG( (x>=0) && (y>=0) && (xm_data[pos+1]; } unsigned char wxImage::GetBlue( int x, int y ) { wxCHECK_MSG( Ok(), 0, "invalid image" ); - + int w = M_IMGDATA->m_width; int h = M_IMGDATA->m_height; - + wxCHECK_MSG( (x>=0) && (y>=0) && (xm_data[pos+2]; } @@ -240,19 +247,21 @@ bool wxImage::Ok() const char unsigned *wxImage::GetData() const { wxCHECK_MSG( Ok(), (char unsigned *)NULL, "invalid image" ); - + return M_IMGDATA->m_data; } -void wxImage::SetData( char unsigned *WXUNUSED(data) ) +void wxImage::SetData( char unsigned *data ) { wxCHECK_RET( Ok(), "invalid image" ); + + memcpy(M_IMGDATA->m_data, data, M_IMGDATA->m_width * M_IMGDATA->m_height * 3); } void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b ) { wxCHECK_RET( Ok(), "invalid image" ); - + M_IMGDATA->m_maskRed = r; M_IMGDATA->m_maskGreen = g; M_IMGDATA->m_maskBlue = b; @@ -262,116 +271,124 @@ void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b ) unsigned char wxImage::GetMaskRed() const { wxCHECK_MSG( Ok(), 0, "invalid image" ); - + return M_IMGDATA->m_maskRed; } unsigned char wxImage::GetMaskGreen() const { wxCHECK_MSG( Ok(), 0, "invalid image" ); - + return M_IMGDATA->m_maskGreen; } unsigned char wxImage::GetMaskBlue() const { wxCHECK_MSG( Ok(), 0, "invalid image" ); - + return M_IMGDATA->m_maskBlue; } void wxImage::SetMask( bool mask ) { wxCHECK_RET( Ok(), "invalid image" ); - + M_IMGDATA->m_hasMask = mask; } bool wxImage::HasMask() const { wxCHECK_MSG( Ok(), FALSE, "invalid image" ); - + return M_IMGDATA->m_hasMask; } int wxImage::GetWidth() const { wxCHECK_MSG( Ok(), 0, "invalid image" ); - + return M_IMGDATA->m_width; } int wxImage::GetHeight() const { wxCHECK_MSG( Ok(), 0, "invalid image" ); - + return M_IMGDATA->m_height; } bool wxImage::LoadFile( const wxString& filename, long type ) { +#if wxUSE_STREAMS if (wxFileExists(filename)) { wxFileInputStream stream(filename); return LoadFile(stream, type); } - + else { - wxLogWarning( "Image file does not exist." ); - + wxLogError( "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; +} + +#if wxUSE_STREAMS bool wxImage::LoadFile( wxInputStream& stream, long type ) { UnRef(); - + m_refData = new wxImageRefData; - + wxImageHandler *handler = FindHandler(type); - + if (handler == NULL) { wxLogWarning( "No image handler for type %d defined.", type ); - + return FALSE; } - + return handler->LoadFile( this, stream ); } -bool wxImage::SaveFile( const wxString& filename, int type ) -{ - wxFileOutputStream stream(filename); - - if ( stream.LastError() == wxStream_NOERROR ) - return SaveFile(stream, type); - else - return FALSE; -} - bool wxImage::SaveFile( wxOutputStream& stream, int type ) { wxCHECK_MSG( Ok(), FALSE, "invalid image" ); - + wxImageHandler *handler = FindHandler(type); - + if (handler == NULL) { - wxLogWarning( "No image handler for type %d defined.", type ); - - return FALSE; + wxLogWarning( "No image handler for type %d defined.", type ); + + return FALSE; } - + return handler->SaveFile( this, stream ); } +#endif // wxUSE_STREAMS void wxImage::AddHandler( wxImageHandler *handler ) { // make sure that the memory will be freed at the program end sm_handlers.DeleteContents(TRUE); - + sm_handlers.Append( handler ); } @@ -379,7 +396,7 @@ void wxImage::InsertHandler( wxImageHandler *handler ) { // make sure that the memory will be freed at the program end sm_handlers.DeleteContents(TRUE); - + sm_handlers.Insert( handler ); } @@ -401,8 +418,8 @@ 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; @@ -414,9 +431,9 @@ 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; @@ -437,9 +454,6 @@ wxImageHandler *wxImage::FindHandler( long bitmapType ) void wxImage::InitStandardHandlers() { AddHandler( new wxBMPHandler ); -#ifdef wxUSE_LIBPNG - AddHandler( new wxPNGHandler ); -#endif } void wxImage::CleanUpHandlers() @@ -463,6 +477,7 @@ void wxImage::CleanUpHandlers() IMPLEMENT_DYNAMIC_CLASS(wxImageHandler,wxObject) #endif +#if wxUSE_STREAMS bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream) ) { return FALSE; @@ -472,274 +487,7 @@ bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSE { 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 ) -{ - ((wxInputStream*) png_get_io_ptr( png_ptr )) -> Read(data, length); -} - -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); -} - -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; - - if (setjmp(png_ptr->jmpbuf)) - goto error; - - if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - goto error; - - png_set_read_fn( png_ptr, &stream, _PNG_stream_reader); - - png_uint_32 width,height; - int bit_depth,color_type,interlace_type; - - 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 ); - - if (color_type == PNG_COLOR_TYPE_PALETTE) - png_set_expand( png_ptr ); - - 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 ); - - image->Create( width, height ); - - if (!image->Ok()) - goto error; - - lines = (unsigned char **)malloc( height * sizeof(unsigned char *) ); - if (lines == NULL) - goto error; - - for (i = 0; i < height; i++) - { - if ((lines[i] = (unsigned char *)malloc(width * (sizeof(unsigned char) * 4))) == NULL) - { - for ( unsigned int n = 0; n < i; n++ ) - free( lines[n] ); - goto error; - } - } - - // loaded successfully! - { - 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)) - { - for (unsigned int y = 0; y < height; y++) - { - unsigned char *ptr2 = lines[y]; - for (unsigned int x = 0; x < width; x++) - { - unsigned char r = *ptr2++; - unsigned char a = *ptr2++; - if (a < 128) - { - *ptr++ = 255; - *ptr++ = 0; - *ptr++ = 255; - transp = 1; - } - else - { - *ptr++ = r; - *ptr++ = r; - *ptr++ = r; - } - } - } - } - else - { - for (unsigned int y = 0; y < height; y++) - { - unsigned char *ptr2 = lines[y]; - for (unsigned int x = 0; x < width; x++) - { - unsigned char r = *ptr2++; - unsigned char g = *ptr2++; - unsigned char b = *ptr2++; - unsigned char a = *ptr2++; - if (a < 128) - { - *ptr++ = 255; - *ptr++ = 0; - *ptr++ = 255; - transp = 1; - } - else - { - if ((r == 255) && (g == 0) && (b == 255)) r = 254; - *ptr++ = r; - *ptr++ = g; - *ptr++ = b; - } - } - } - } - - for ( unsigned int j = 0; j < height; j++ ) - free( lines[j] ); - free( lines ); - - if (transp) - { - image->SetMaskColour( 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 +#endif // wxUSE_STREAMS //----------------------------------------------------------------------------- // wxBMPHandler @@ -749,368 +497,370 @@ bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream ) IMPLEMENT_DYNAMIC_CLASS(wxBMPHandler,wxImageHandler) #endif +#if wxUSE_STREAMS 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 *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; + } + *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; - /* + + 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) - { + + 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) - { + } + 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) - { + } + 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) - { + } + 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))) - { + } + 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) - { + } + 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 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); + free(cmap); return FALSE; - } - - /* + } + + /* * Reading the palette, if it exists. */ - if (bpp < 16 && ncolors != 0) - { + 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) - { + { + 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; - } - } + { + 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; - } + { + 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; - } - } - - /* + { + 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)) - { + 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++ = cmap[0].r; + *ptr++ = cmap[0].g; + *ptr++ = cmap[0].b; + } ptr = data; - } - line = 0; - column = 0; + } + 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--) - { + + 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) + { + if (bpp < 16) + { + int index; + + linepos++; + aByte = stream.GetC(); + if (bpp == 1) + { + int bit = 0; + + for (bit = 0; bit < 8; bit++) { - int bit = 0; - - for (bit = 0; bit < 8; bit++) - { - index = ((aByte & (0x80 >> bit)) ? 1 : 0); + 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 == 4) + } + else if (bpp == 8) + { + if (comp == BI_RLE8) { - 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++; - } - } + 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 if (bpp == 8) + else { - 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; - } + ptr[poffset] = cmap[aByte].r; + ptr[poffset + 1] = cmap[aByte].g; + ptr[poffset + 2] = cmap[aByte].b; + column++; + linepos += size; } + } } - else if (bpp == 24) + 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++; + 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) + 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++; + 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 + 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++; + 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)) + while ((linepos < linesize) && (comp != 1) && (comp != 2)) { - stream.Read(&aByte, 1); - linepos += 1; - if (stream.LastError() != wxStream_NOERROR) - break; + stream.Read(&aByte, 1); + linepos += 1; + if (stream.LastError() != wxStream_NOERROR) + break; } } - if (cmap) free(cmap); - - image->SetMask( FALSE ); - - return TRUE; + if (cmap) free(cmap); + + image->SetMask( FALSE ); + + return TRUE; } +#endif // wxUSE_STREAMS #ifdef __WXMSW__ wxBitmap wxImage::ConvertToBitmap() const { -// sizeLimit is the MS upper limit for the DIB size + // sizeLimit is the MS upper limit for the DIB size int sizeLimit = 1024*768*3; - -// width and height of the device-dependent bitmap + + // width and height of the device-dependent bitmap int width = GetWidth(); int bmpHeight = GetHeight(); - -// calc the number of bytes per scanline and padding + + // calc the number of bytes per scanline and padding int bytePerLine = width*3; int sizeDWORD = sizeof( DWORD ); div_t lineBoundary = div( bytePerLine, sizeDWORD ); @@ -1120,7 +870,7 @@ wxBitmap wxImage::ConvertToBitmap() const padding = sizeDWORD - lineBoundary.rem; bytePerLine += padding; } -// calc the number of DIBs and heights of DIBs + // calc the number of DIBs and heights of DIBs int numDIB = 1; int hRemain = 0; int height = sizeLimit/bytePerLine; @@ -1130,37 +880,37 @@ wxBitmap wxImage::ConvertToBitmap() const { div_t result = div( bmpHeight, height ); numDIB = result.quot; - hRemain = result.rem; - if( hRemain >0 ) numDIB++; + hRemain = result.rem; + if( hRemain >0 ) numDIB++; } - -// set bitmap parameters + + // set bitmap parameters wxBitmap bitmap; wxCHECK_MSG( Ok(), bitmap, "invalid image" ); bitmap.SetWidth( width ); bitmap.SetHeight( bmpHeight ); bitmap.SetDepth( wxDisplayDepth() ); - -// create a DIB header + + // 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 + // 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; + // 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. + // 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 ) @@ -1169,33 +919,33 @@ wxBitmap wxImage::ConvertToBitmap() const free( lpDIBh ); return bitmap; } - -// create and set the device-dependent 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) + + // 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; + if( numDIB > 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 ); + 0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY); + origin += height; + // if numDIB = 1, lines below can also be used + // hbitmap = CreateDIBitmap( hdc, &(lpDIBh->bmiHeader), 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 + + // similarly, created an mono-bitmap for the possible mask if( HasMask() ) { hbitmap = ::CreateBitmap( (WORD)width, (WORD)bmpHeight, 1, 1, NULL ); @@ -1245,16 +995,16 @@ wxBitmap wxImage::ConvertToBitmap() const { if( numDIB > 1 && n == numDIB - 1 && hRemain > 0 ) { - // redefine height and size of the (possibly) last smaller DIB - // memory is not reallocated - height = hRemain; + // 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 + + // 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" ); return; } - -// create an wxImage object + + // create an wxImage object int width = bitmap.GetWidth(); int height = bitmap.GetHeight(); Create( width, height ); @@ -1322,8 +1072,8 @@ wxImage::wxImage( const wxBitmap &bitmap ) wxFAIL_MSG( "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 ); @@ -1333,8 +1083,8 @@ wxImage::wxImage( const wxBitmap &bitmap ) padding = sizeDWORD - lineBoundary.rem; bytePerLine += padding; } - -// create a DIB header + + // create a DIB header int headersize = sizeof(BITMAPINFOHEADER); LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize ); if( !lpDIBh ) @@ -1343,7 +1093,7 @@ wxImage::wxImage( const wxBitmap &bitmap ) 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; @@ -1352,11 +1102,11 @@ 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 ) @@ -1367,13 +1117,13 @@ wxImage::wxImage( const wxBitmap &bitmap ) 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; @@ -1385,21 +1135,21 @@ 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 + // background color set to RGB(16,16,16) in consistent with wxGTK unsigned char r=16, g=16, b=16; ptdata = data; ptbits = lpBits; @@ -1408,13 +1158,13 @@ wxImage::wxImage( const wxBitmap &bitmap ) for( j=0; j> 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 ); } - + // 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 }; byte_order b_o = RGB; - + if (bpp >= 24) { GdkVisual *visual = gdk_visual_get_system(); @@ -1501,13 +1251,13 @@ wxBitmap wxImage::ConvertToBitmap() const else if ((visual->green_mask > visual->red_mask) && (visual->red_mask > visual->blue_mask)) b_o = GRB; else if ((visual->green_mask > visual->blue_mask) && (visual->blue_mask > visual->red_mask)) b_o = GBR; } - + int r_mask = GetMaskRed(); int g_mask = GetMaskGreen(); int b_mask = GetMaskBlue(); - + unsigned char* data = GetData(); - + int index = 0; for (int y = 0; y < height; y++) { @@ -1519,7 +1269,7 @@ wxBitmap wxImage::ConvertToBitmap() const index++; int b = data[index]; index++; - + if (HasMask()) { if ((r == r_mask) && (b == b_mask) && (g == g_mask)) @@ -1527,7 +1277,7 @@ wxBitmap wxImage::ConvertToBitmap() const else gdk_image_put_pixel( mask_image, x, y, 0 ); } - + if (HasMask()) { if ((r == r_mask) && (b == b_mask) && (g == g_mask)) @@ -1535,10 +1285,10 @@ wxBitmap wxImage::ConvertToBitmap() const else gdk_image_put_pixel( mask_image, x, y, 0 ); } - + switch (bpp) { - case 8: + case 8: { int pixel = -1; if (wxTheApp->m_colorCube) @@ -1550,7 +1300,7 @@ wxBitmap wxImage::ConvertToBitmap() const GdkColormap *cmap = gtk_widget_get_default_colormap(); GdkColor *colors = cmap->colors; int max = 3 * (65536); - + for (int i = 0; i < cmap->size; i++) { int rdiff = (r << 8) - colors[i].red; @@ -1560,104 +1310,104 @@ wxBitmap wxImage::ConvertToBitmap() const if (sum < max) { pixel = i; max = sum; } } } - + gdk_image_put_pixel( data_image, x, y, pixel ); - + 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 - + // Blit picture - + GdkGC *data_gc = gdk_gc_new( bitmap.GetPixmap() ); - + gdk_draw_image( bitmap.GetPixmap(), data_gc, data_image, 0, 0, 0, 0, width, height ); - + gdk_image_destroy( data_image ); gdk_gc_unref( data_gc ); - + // Blit mask - + 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 ); } - + return bitmap; } wxImage::wxImage( const wxBitmap &bitmap ) { wxCHECK_RET( bitmap.Ok(), "invalid bitmap" ); - + GdkImage *gdk_image = gdk_image_get( bitmap.GetPixmap(), - 0, 0, - bitmap.GetWidth(), bitmap.GetHeight() ); - + 0, 0, + bitmap.GetWidth(), bitmap.GetHeight() ); + wxCHECK_RET( gdk_image, "couldn't create image" ); - + Create( bitmap.GetWidth(), bitmap.GetHeight() ); char unsigned *data = GetData(); - + if (!data) { gdk_image_destroy( gdk_image ); wxFAIL_MSG( "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() ); - + 0, 0, + bitmap.GetWidth(), bitmap.GetHeight() ); + SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable } - + GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() ); 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; - + GdkColormap *cmap = gtk_widget_get_default_colormap(); - + long pos = 0; for (int j = 0; j < bitmap.GetHeight(); j++) { @@ -1685,7 +1435,7 @@ wxImage::wxImage( const wxBitmap &bitmap ) data[pos+1] = (pixel >> 8) & 0xff; data[pos+2] = pixel & 0xff; } - + if (gdk_image_mask) { int mask_pixel = gdk_image_get_pixel( gdk_image_mask, i, j ); @@ -1694,13 +1444,13 @@ wxImage::wxImage( const wxBitmap &bitmap ) data[pos] = 16; data[pos+1] = 16; data[pos+2] = 16; - } + } } - + pos += 3; } } - + gdk_image_destroy( gdk_image ); if (gdk_image_mask) gdk_image_destroy( gdk_image_mask ); } @@ -1716,44 +1466,44 @@ wxImage::wxImage( const wxBitmap &bitmap ) wxBitmap wxImage::ConvertToBitmap() const { wxBitmap bitmap; - + wxCHECK_MSG( Ok(), bitmap, "invalid image" ); int width = GetWidth(); int height = GetHeight(); - + bitmap.SetHeight( height ); bitmap.SetWidth( width ); - + Display *dpy = (Display*) wxGetDisplay(); Visual* vis = DefaultVisual( dpy, DefaultScreen( dpy ) ); 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; - - if (HasMask()) - { + + GdkImage *mask_image = (GdkImage*) NULL; + + 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 ); - } -*/ - + + 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 ); + } + */ + // Retrieve depth info XVisualInfo vinfo_template; @@ -1771,17 +1521,17 @@ wxBitmap wxImage::ConvertToBitmap() const printf("no visual.\n" ); return wxNullBitmap; } - + XFree( vi ); if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15; if (bpp < 8) bpp = 8; - + // Render - + enum byte_order { RGB, RBG, BRG, BGR, GRB, GBR }; byte_order b_o = RGB; - + if (bpp >= 24) { if ((vi->red_mask > vi->green_mask) && (vi->green_mask > vi->blue_mask)) b_o = RGB; @@ -1791,172 +1541,172 @@ wxBitmap wxImage::ConvertToBitmap() const else if ((vi->green_mask > vi->red_mask) && (vi->red_mask > vi->blue_mask)) b_o = GRB; 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(); - + int index = 0; for (int y = 0; y < height; y++) { for (int x = 0; x < width; x++) { int r = data[index]; - index++; + index++; int g = data[index]; - index++; + index++; int b = data[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 ); - } -*/ - - switch (bpp) - { - case 8: - { + 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 ); + } + */ + + 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 - + // Blit picture - + XGCValues gcvalues; gcvalues.foreground = BlackPixel( dpy, DefaultScreen( dpy ) ); GC gc = XCreateGC( dpy, RootWindow ( dpy, DefaultScreen(dpy) ), GCForeground, &gcvalues ); XPutImage( dpy, (Drawable)bitmap.GetPixmap(), gc, data_image, 0, 0, 0, 0, width, height ); - + 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" ); - + 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" ); - + Create( bitmap.GetWidth(), bitmap.GetHeight() ); char unsigned *data = GetData(); - + if (!data) { XDestroyImage( ximage ); wxFAIL_MSG( "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() ); - - SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable - } -*/ - + gdk_image_mask = gdk_image_get( bitmap.GetMask()->GetBitmap(), + 0, 0, + bitmap.GetWidth(), bitmap.GetHeight() ); + + SetMaskColour( 16, 16, 16 ); // anything unlikely and dividable + } + */ + // Retrieve depth info XVisualInfo vinfo_template; @@ -1974,26 +1724,26 @@ wxImage::wxImage( const wxBitmap &bitmap ) printf("no visual.\n" ); return; } - + 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; for (int j = 0; j < bitmap.GetHeight(); j++) { 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; @@ -2015,27 +1765,43 @@ wxImage::wxImage( const wxBitmap &bitmap ) data[pos+1] = (pixel >> 8) & 0xff; 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 + +// A module to allow wxImage initialization/cleanup +// without calling these functions from app.cpp or from +// the user's application. + +class wxImageModule: public wxModule +{ +DECLARE_DYNAMIC_CLASS(wxImageModule) +public: + wxImageModule() {} + bool OnInit() { wxImage::InitStandardHandlers(); return TRUE; }; + void OnExit() { wxImage::CleanUpHandlers(); }; +}; + +IMPLEMENT_DYNAMIC_CLASS(wxImageModule, wxModule) +