X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/702ca7c0704ae15a0ae7aa68588004d6f8d469f4..6cd47507e8405ae0330ad023bd8031748f95147c:/src/common/image.cpp diff --git a/src/common/image.cpp b/src/common/image.cpp index fa252b31df..151ba3b73e 100644 --- a/src/common/image.cpp +++ b/src/common/image.cpp @@ -22,10 +22,28 @@ #include "wx/bitmap.h" #include "wx/debug.h" #include "wx/log.h" -#ifdef wxUSE_LIBPNG +#include "wx/app.h" +#if wxUSE_LIBPNG #include "../png/png.h" #endif +#if wxUSE_LIBJPEG +extern "C" { +#include +} +#endif #include "wx/filefn.h" +#include "wx/wfstream.h" +#include "wx/intl.h" +#include "wx/module.h" + +// For memcpy +#include + +#ifdef __SALFORDC__ +#ifdef FAR +#undef FAR +#endif +#endif #ifdef __WXMSW__ #include @@ -37,17 +55,17 @@ 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) @@ -91,25 +109,32 @@ wxImage::wxImage( const wxString& name, long type ) LoadFile( name, type ); } -wxImage::wxImage( const wxImage& image ) -{ - Ref(image); +#if wxUSE_STREAMS +wxImage::wxImage( wxInputStream& stream, long type ) +{ + LoadFile( stream, type ); +} +#endif // wxUSE_STREAMS + +wxImage::wxImage( const wxImage& image ) +{ + Ref(image); } -wxImage::wxImage( const wxImage* image ) -{ - if (image) Ref(*image); +wxImage::wxImage( const wxImage* image ) +{ + if (image) Ref(*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; @@ -142,24 +167,28 @@ wxImage wxImage::Scale( int width, int height ) 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; + + char unsigned *source_data = M_IMGDATA->m_data; + char unsigned *target_data = data; - for (int j = 0; j < height; j++) + for (long j = 0; j < height; j++) { - for (int 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 ]; - } + long y_offset = (j * old_height / height) * old_width; + + for (long i = 0; i < width; i++) + { + 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" ); @@ -217,28 +246,30 @@ unsigned char wxImage::GetBlue( int x, int y ) return M_IMGDATA->m_data[pos+2]; } - -bool wxImage::Ok() const -{ - return (M_IMGDATA && M_IMGDATA->m_ok); + +bool wxImage::Ok() const +{ + return (M_IMGDATA && M_IMGDATA->m_ok); } 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; @@ -248,100 +279,132 @@ 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 -{ +int wxImage::GetWidth() const +{ wxCHECK_MSG( Ok(), 0, "invalid image" ); - return M_IMGDATA->m_width; + return M_IMGDATA->m_width; } -int wxImage::GetHeight() const -{ +int wxImage::GetHeight() const +{ wxCHECK_MSG( Ok(), 0, "invalid image" ); - return M_IMGDATA->m_height; + return M_IMGDATA->m_height; } bool wxImage::LoadFile( const wxString& filename, long type ) { - UnRef(); - - if (!wxFileExists(filename)) +#if wxUSE_STREAMS + if (wxFileExists(filename)) { - wxLogWarning( "Image file does not exist." ); - + wxFileInputStream stream(filename); + return LoadFile(stream, type); + } + + else { + 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 +} - m_refData = new wxImageRefData; +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) + + if (handler == NULL) { wxLogWarning( "No image handler for type %d defined.", type ); - + return FALSE; } - - return handler->LoadFile( this, filename ); + + return handler->LoadFile( this, stream ); } -bool wxImage::SaveFile( const wxString& filename, int type ) +bool wxImage::SaveFile( wxOutputStream& stream, int type ) { wxCHECK_MSG( Ok(), FALSE, "invalid image" ); wxImageHandler *handler = FindHandler(type); - - if (handler == NULL) + + 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, filename ); + + 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 ); } 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 ); } @@ -363,7 +426,8 @@ 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; @@ -375,9 +439,9 @@ 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; @@ -398,7 +462,7 @@ wxImageHandler *wxImage::FindHandler( long bitmapType ) void wxImage::InitStandardHandlers() { AddHandler( new wxBMPHandler ); -#ifdef wxUSE_LIBPNG +#if wxUSE_LIBPNG AddHandler( new wxPNGHandler ); #endif } @@ -424,841 +488,1193 @@ void wxImage::CleanUpHandlers() IMPLEMENT_DYNAMIC_CLASS(wxImageHandler,wxObject) #endif -bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), const wxString& WXUNUSED(name) ) +#if wxUSE_STREAMS +bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream) ) { return FALSE; } -bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), const wxString& WXUNUSED(name) ) +bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream) ) { return FALSE; } +#endif // wxUSE_STREAMS //----------------------------------------------------------------------------- // wxPNGHandler //----------------------------------------------------------------------------- -#ifdef wxUSE_LIBPNG +#if wxUSE_LIBPNG #if !USE_SHARED_LIBRARIES IMPLEMENT_DYNAMIC_CLASS(wxPNGHandler,wxImageHandler) #endif - -bool wxPNGHandler::LoadFile( wxImage *image, const wxString& name ) + + +#if wxUSE_STREAMS +static void _PNG_stream_reader( png_structp png_ptr, png_bytep data, png_size_t length ) { - 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) return FALSE; + ((wxInputStream*) png_get_io_ptr( png_ptr )) -> Read(data, length); +} - png_infop info_ptr = png_create_info_struct( png_ptr ); - if (!info_ptr) - { - png_destroy_read_struct( &png_ptr, (png_infopp) NULL, (png_infopp) NULL ); - return FALSE; - } +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)) - { - png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL ); - return FALSE; - } - + goto error; + if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA) - { - png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL ); - return FALSE; - } - - FILE *f = fopen( name, "rb" ); - png_init_io( png_ptr, f ); - + 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 ); - + + 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 ); + 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()) - { - png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL ); - return FALSE; - } - - unsigned char **lines = (unsigned char **)malloc( height * sizeof(unsigned char *) ); + goto error; + + lines = (unsigned char **)malloc( height * sizeof(unsigned char *) ); if (lines == NULL) - { - image->Destroy(); - png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL ); - return FALSE; - } - - for (unsigned int i = 0; i < height; i++) + goto error; + + for (i = 0; i < height; i++) { if ((lines[i] = (unsigned char *)malloc(width * (sizeof(unsigned char) * 4))) == NULL) { - image->Destroy(); - for (unsigned int n = 0; n < i; n++) free( lines[n] ); - free( lines ); - png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL ); - return FALSE; + for ( unsigned int n = 0; n < i; n++ ) + free( lines[n] ); + goto error; } } - - - 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 i = 0; i < height; i++) free( lines[i] ); - free( lines ); - - if (transp) - { - image->SetMaskColour( 255, 0, 255 ); - } - else + // loaded successfully! { - image->SetMask( FALSE ); + 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; -} - - -bool wxPNGHandler::SaveFile( wxImage *image, const wxString& name ) -{ - FILE *f = fopen( name, "wb" ); - if (!f) return FALSE; - png_structp png_ptr = png_create_write_struct( PNG_LIBPNG_VER_STRING, - (voidp) NULL, (png_error_ptr) NULL, (png_error_ptr) NULL); - if (!png_ptr) - { - fclose( f ); - return FALSE; - } +error: + wxLogError(_("Couldn't load a PNG image - probably file is corrupted.")); - png_infop info_ptr = png_create_info_struct(png_ptr); - if (info_ptr == NULL) + if ( image->Ok() ) { - fclose(f); - png_destroy_write_struct( &png_ptr, (png_infopp) NULL ); - return FALSE; + image->Destroy(); } - if (setjmp(png_ptr->jmpbuf)) + if ( lines ) { - fclose( f ); - png_destroy_write_struct( &png_ptr, (png_infopp) NULL ); - return FALSE; + free( lines ); } - png_init_io( png_ptr, f ); - 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) + if ( png_ptr ) { - fclose( f ); - png_destroy_write_struct( &png_ptr, (png_infopp) NULL ); - return FALSE; + 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 ); } - - for (int y = 0; y < image->GetHeight(); y++) + return FALSE; +} + + +bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream ) +{ { - unsigned char *ptr = image->GetData() + (y * image->GetWidth() * 3); - for (int x = 0; x < image->GetWidth(); x++) + 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++) { - 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; - } + 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 ); } - 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 ); } - - free(data); - png_write_end( png_ptr, info_ptr ); - png_destroy_write_struct( &png_ptr, (png_infopp) NULL ); - - fclose(f); - return TRUE; } +#endif // wxUSE_STREAMS + +#endif -#endif +// wxUSE_LIBPNG - // wxUSE_LIBPNG //----------------------------------------------------------------------------- -// wxBMPHandler +// wxJPEGHandler //----------------------------------------------------------------------------- -#if !USE_SHARED_LIBRARIES -IMPLEMENT_DYNAMIC_CLASS(wxBMPHandler,wxImageHandler) -#endif - -bool wxBMPHandler::LoadFile( wxImage *image, const wxString& name ) -{ - FILE *file; - 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; - 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 +#if wxUSE_LIBJPEG -#ifndef BI_BITFIELDS -#define BI_BITFIELDS 3 +#if !USE_SHARED_LIBRARIES +IMPLEMENT_DYNAMIC_CLASS(wxJPEGHandler,wxImageHandler) #endif - image->Destroy(); +#if wxUSE_STREAMS - file = fopen(name, "r"); - if (!file) - return NULL; - done = 0; - /* - * Reading the bmp header - */ - - fread(&bbuf, 1, 2, file); +//------------- JPEG Data Source Manager - fread(dbuf, 4, 4, file); +typedef struct { + struct jpeg_source_mgr pub; /* public fields */ + + JOCTET* buffer; /* start of buffer */ +} my_source_mgr; - size = dbuf[0]; - offset = dbuf[2]; +typedef my_source_mgr * my_src_ptr; - fread(dbuf, 4, 2, file); - int width = (int)dbuf[0]; - int height = (int)dbuf[1]; - if (width > 32767) - { - wxLogError( "Image width > 32767 pixels for file\n" ); - fclose(file); - return FALSE; - } - if (height > 32767) - { - wxLogError( "Image height > 32767 pixels for file\n" ); - fclose(file); - return FALSE; - } - fread(&word, 2, 1, file); - planes = (int)word; - fread(&word, 2, 1, file); - bpp = (int)word; - if (bpp != 1 && bpp != 4 && bpp != 8 && bpp && 16 && bpp != 24 && bpp != 32) - { - wxLogError( "unknown bitdepth in file\n" ); - fclose(file); - return FALSE; - } - fread(dbuf, 4, 4, file); - 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" ); - fclose(file); - return FALSE; - } - fread(dbuf, 4, 2, file); - 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" ); - fclose(file); - 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" ); - fclose(file); - return FALSE; - } - } - else - cmap = NULL; - - image->Create( width, height ); - ptr = image->GetData(); - if (!ptr) - { - wxLogError( "Cannot allocate RAM for RGB data in file\n" ); - fclose(file); - if (cmap) - free(cmap); - return FALSE; - } +METHODDEF(void) my_init_source ( j_decompress_ptr cinfo ) +{ +} - /* - * Reading the palette, if it exists. - */ - if (bpp < 16 && ncolors != 0) - { - for (i = 0; i < ncolors; i++) - { - fread(bbuf, 1, 4, file); - 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; - - fread(dbuf, 4, 3, file); - 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; - } - } +METHODDEF(boolean) my_fill_input_buffer ( j_decompress_ptr cinfo ) +{ + return TRUE; +} - /* - * REading the image data - */ - fseek(file, offset, SEEK_SET); - 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) +METHODDEF(void) my_skip_input_data ( j_decompress_ptr cinfo, long num_bytes ) +{ + my_src_ptr src = (my_src_ptr) cinfo->src; + + src->pub.next_input_byte += (size_t) num_bytes; + src->pub.bytes_in_buffer -= (size_t) num_bytes; +} - /* - * BMPs are stored upside down... hmmmmmmmmmm.... - */ +METHODDEF(void) my_term_source ( j_decompress_ptr cinfo ) +{ + my_src_ptr src = (my_src_ptr) cinfo->src; + + free (src->buffer); +} - 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 = getc(file); - 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 = getc(file); - if (first == 0) - { - if (aByte == 0) - { -/* column = width; */ - } - else if (aByte == 1) - { - column = width; - line = -1; - } - else if (aByte == 2) - { - aByte = getc(file); - column += aByte; - linepos = column * bpp / 8; - aByte = getc(file); - line += aByte; - } - else - { - int absolute = aByte; - - for (i = 0; i < absolute; i++) - { - linepos++; - aByte = getc(file); - ptr[poffset] = cmap[aByte].r; - ptr[poffset + 1] = cmap[aByte].g; - ptr[poffset + 2] = cmap[aByte].b; - column++; - } - if (absolute & 0x01) - aByte = getc(file); - } - } - 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) - { - linepos += fread(&bbuf, 1, 3, file); - 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; - - linepos += fread(&word, 2, 1, file); - 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; - - linepos += fread(&dword, 4, 1, file); - 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)) - { - int temp = fread(&aByte, 1, 1, file); - - linepos += temp; - if (!temp) - break; - } - } - if (cmap) free(cmap); - - image->SetMask( FALSE ); - - fclose(file); - return TRUE; +void jpeg_wxio_src( j_decompress_ptr cinfo, wxInputStream& infile ) +{ + my_src_ptr src; + + if (cinfo->src == NULL) { /* first time for this JPEG object? */ + cinfo->src = (struct jpeg_source_mgr *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + sizeof(my_source_mgr)); + src = (my_src_ptr) cinfo->src; + } + src = (my_src_ptr) cinfo->src; + src->pub.bytes_in_buffer = infile.StreamSize(); /* forces fill_input_buffer on first read */ + src->buffer = (JOCTET *) malloc (infile.StreamSize()); + src->pub.next_input_byte = src->buffer; /* until buffer loaded */ + infile.Read(src->buffer, infile.StreamSize()); + + src->pub.init_source = my_init_source; + src->pub.fill_input_buffer = my_fill_input_buffer; + src->pub.skip_input_data = my_skip_input_data; + src->pub.resync_to_restart = jpeg_resync_to_restart; /* use default method */ + src->pub.term_source = my_term_source; } -#ifdef __WXMSW__ -wxBitmap wxImage::ConvertToBitmap() const + +bool wxJPEGHandler::LoadFile( wxImage *image, wxInputStream& stream ) { - - wxBitmap bitmap; - wxCHECK_MSG( Ok(), bitmap, "invalid image" ); - int width = GetWidth(); - int height = GetHeight(); - bitmap.SetWidth( width ); - bitmap.SetHeight( height ); - bitmap.SetDepth( wxDisplayDepth() ); - - 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 = width; - lpDIBh->bmiHeader.biHeight = -height; - lpDIBh->bmiHeader.biSizeImage = width * height * 3; - - lpDIBh->bmiHeader.biPlanes = 1; - lpDIBh->bmiHeader.biBitCount = 24; - lpDIBh->bmiHeader.biCompression = BI_RGB; - lpDIBh->bmiHeader.biClrUsed = 0; - -// These seem not needed for our purpose here. -// lpDIBh->bmiHeader.biClrImportant = 0; -// lpDIBh->bmiHeader.biXPelsPerMeter = 0; -// lpDIBh->bmiHeader.biYPelsPerMeter = 0; - - unsigned char *lpBits = (unsigned char *) malloc( width*height*3 ); - if( !lpBits ) - { - wxFAIL_MSG( "could not allocate memory for DIB" ); - free( lpDIBh ); - return bitmap; - } - - unsigned char *data = GetData(); - - unsigned char *ptdata = data, *ptbits = lpBits; - for( int i=0; ibmiHeader), 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 ); - - if( HasMask() ) - { - unsigned char r = GetMaskRed(); - unsigned char g = GetMaskGreen(); - unsigned char b = GetMaskBlue(); - unsigned char zero = 0, one = 255; - ptdata = data; - ptbits = lpBits; - for( int i=0; iDestroy(); + cinfo.err = jpeg_std_error( &jerr ); + jpeg_create_decompress( &cinfo ); + jpeg_wxio_src( &cinfo, stream ); + jpeg_read_header( &cinfo, TRUE ); + cinfo.out_color_space = JCS_RGB; + jpeg_start_decompress( &cinfo ); + + image->Create( cinfo.image_width, cinfo.image_height ); + if (!image->Ok()) { + jpeg_finish_decompress( &cinfo ); + jpeg_destroy_decompress( &cinfo ); + return FALSE; } - hbitmap = ::CreateBitmap( (WORD)width, (WORD)height, 1, 1, NULL ); - ::SetDIBits( hdc, hbitmap, 0, (WORD)height, lpBits, lpDIBh, DIB_RGB_COLORS); - wxMask *mask = new wxMask(); - mask->SetMaskBitmap( (WXHBITMAP) hbitmap ); - bitmap.SetMask( mask ); - -/* 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 ); -*/ - } - - ::ReleaseDC(NULL, hdc); - free(lpDIBh); - free(lpBits); - - if( bitmap.GetHBITMAP() ) - bitmap.SetOk( TRUE ); - else - bitmap.SetOk( FALSE ); - - return bitmap; + image->SetMask( FALSE ); + ptr = image->GetData(); + stride = cinfo.output_width * 3; + tempbuf = (*cinfo.mem->alloc_sarray) + ((j_common_ptr) &cinfo, JPOOL_IMAGE, stride, 1 ); + + while ( cinfo.output_scanline < cinfo.output_height ) { + jpeg_read_scanlines( &cinfo, tempbuf, 1 ); + memcpy( ptr, tempbuf[0], stride ); + ptr += stride; + } + jpeg_finish_decompress( &cinfo ); + jpeg_destroy_decompress( &cinfo ); + return TRUE; } -wxImage::wxImage( const wxBitmap &bitmap ) + + + +typedef struct { + struct jpeg_destination_mgr pub; + + wxOutputStream *stream; + JOCTET * buffer; +} my_destination_mgr; + +typedef my_destination_mgr * my_dest_ptr; + +#define OUTPUT_BUF_SIZE 4096 /* choose an efficiently fwrite'able size */ + +METHODDEF(void) init_destination (j_compress_ptr cinfo) { - if( !bitmap.Ok() ) - { - wxFAIL_MSG( "invalid bitmap" ); - return; - } - - 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; - } - - 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 = width * height * 3; - - lpDIBh->bmiHeader.biPlanes = 1; - lpDIBh->bmiHeader.biBitCount = 24; - lpDIBh->bmiHeader.biCompression = BI_RGB; - lpDIBh->bmiHeader.biClrUsed = 0; - -// These seem not needed for our purpose here. -// lpDIBh->bmiHeader.biClrImportant = 0; -// lpDIBh->bmiHeader.biXPelsPerMeter = 0; -// lpDIBh->bmiHeader.biYPelsPerMeter = 0; - - unsigned char *lpBits = (unsigned char *) malloc( width*height*3 ); - if( !lpBits ) - { - wxFAIL_MSG( "could not allocate data for DIB" ); - free( data ); - free( lpDIBh ); - return; - } - - HBITMAP hbitmap; - hbitmap = (HBITMAP) bitmap.GetHBITMAP(); - HDC hdc = ::GetDC(NULL); - ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); - - unsigned char *ptdata = data, *ptbits = lpBits; - for( int i=0; iGetMaskBitmap() ) - { - hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap(); + my_dest_ptr dest = (my_dest_ptr) cinfo->dest; + + /* Allocate the output buffer --- it will be released when done with image */ + dest->buffer = (JOCTET *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_IMAGE, + OUTPUT_BUF_SIZE * sizeof(JOCTET)); + dest->pub.next_output_byte = dest->buffer; + dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; +} + +METHODDEF(boolean) empty_output_buffer (j_compress_ptr cinfo) +{ + my_dest_ptr dest = (my_dest_ptr) cinfo->dest; + + dest->stream->Write(dest->buffer, OUTPUT_BUF_SIZE); + dest->pub.next_output_byte = dest->buffer; + dest->pub.free_in_buffer = OUTPUT_BUF_SIZE; + return TRUE; +} + +METHODDEF(void) term_destination (j_compress_ptr cinfo) +{ + my_dest_ptr dest = (my_dest_ptr) cinfo->dest; + size_t datacount = OUTPUT_BUF_SIZE - dest->pub.free_in_buffer; + /* Write any data remaining in the buffer */ + if (datacount > 0) + dest->stream->Write(dest->buffer, datacount); +} + +GLOBAL(void) jpeg_wxio_dest (j_compress_ptr cinfo, wxOutputStream& outfile) +{ + my_dest_ptr dest; + + if (cinfo->dest == NULL) { /* first time for this JPEG object? */ + cinfo->dest = (struct jpeg_destination_mgr *) + (*cinfo->mem->alloc_small) ((j_common_ptr) cinfo, JPOOL_PERMANENT, + sizeof(my_destination_mgr)); + } + + dest = (my_dest_ptr) cinfo->dest; + dest->pub.init_destination = init_destination; + dest->pub.empty_output_buffer = empty_output_buffer; + dest->pub.term_destination = term_destination; + dest->stream = &outfile; +} + + + +bool wxJPEGHandler::SaveFile( wxImage *image, wxOutputStream& stream ) +{ + struct jpeg_compress_struct cinfo; + struct jpeg_error_mgr jerr; + JSAMPROW row_pointer[1]; /* pointer to JSAMPLE row[s] */ + JSAMPLE *image_buffer; + int stride; /* physical row width in image buffer */ + + cinfo.err = jpeg_std_error(&jerr); + jpeg_create_compress(&cinfo); + jpeg_wxio_dest(&cinfo, stream); + + cinfo.image_width = image->GetWidth(); + cinfo.image_height = image->GetHeight(); + cinfo.input_components = 3; + cinfo.in_color_space = JCS_RGB; + jpeg_set_defaults(&cinfo); + jpeg_start_compress(&cinfo, TRUE); + + stride = cinfo.image_width * 3; /* JSAMPLEs per row in image_buffer */ + image_buffer = image->GetData(); + while (cinfo.next_scanline < cinfo.image_height) { + row_pointer[0] = &image_buffer[cinfo.next_scanline * stride]; + jpeg_write_scanlines( &cinfo, row_pointer, 1 ); + } + jpeg_finish_compress(&cinfo); + jpeg_destroy_compress(&cinfo); + + return TRUE; +} +#endif // wxUSE_STREAMS + +#endif + +// wxUSE_LIBJPEG + + + +//----------------------------------------------------------------------------- +// wxBMPHandler +//----------------------------------------------------------------------------- + +#if !USE_SHARED_LIBRARIES +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 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; +} +#endif // wxUSE_STREAMS + +#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 ); - ::SetTextColor( memdc, RGB( 0, 0, 0 ) ); - ::SetBkColor( memdc, RGB( 255, 255, 255 ) ); - ::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS ); + 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 + wxColour colour( GetMaskRed(), GetMaskGreen(), GetMaskBlue()); + wxMask *mask = new wxMask( bitmap, colour ); + bitmap.SetMask( mask ); + */ + } + + // free allocated resources + ::SelectObject( memdc, 0 ); ::DeleteDC( memdc ); - unsigned char r=16, g=16, b=16; // background set to RGB(16,16,16) - ptdata = data; - ptbits = lpBits; - for( int i=0; i 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> 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 ); + + 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; @@ -1314,12 +1730,12 @@ wxBitmap wxImage::ConvertToBitmap() const 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(); @@ -1330,148 +1746,163 @@ 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++) { 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: - { - GdkColormap *cmap = gtk_widget_get_default_colormap(); - GdkColor *colors = cmap->colors; - int max = 3 * (65536); - int index = -1; - - for (int i = 0; i < cmap->size; i++) + 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: + { + int pixel = -1; + if (wxTheApp->m_colorCube) { - 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) { index = i; max = sum; } + pixel = wxTheApp->m_colorCube[ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ]; } - - gdk_image_put_pixel( data_image, x, y, index ); - - break; - } - 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: - { - 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: - { - 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; - } - gdk_image_put_pixel( data_image, x, y, pixel ); - } - default: break; - } + else + { + 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; + 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; } + } + } + + gdk_image_put_pixel( data_image, x, y, pixel ); + + break; + } + 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: + { + 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: + { + 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; + } + gdk_image_put_pixel( data_image, x, y, pixel ); + } + 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; + 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 + 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++) { @@ -1499,24 +1930,373 @@ 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) - { + + 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; - } - } - + } + } + pos += 3; } } - + gdk_image_destroy( gdk_image ); if (gdk_image_mask) gdk_image_destroy( gdk_image_mask ); } #endif + +#ifdef __WXMOTIF__ + +#include +#include "wx/utils.h" +#include + +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 = (char*) malloc( data_image->bytes_per_line * data_image->height ); + + bitmap.Create( width, height, bpp ); + + /* + // Create mask + + 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 ); + } + */ + + // 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; + } + + 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; + else if ((vi->red_mask > vi->blue_mask) && (vi->blue_mask > vi->green_mask)) b_o = RGB; + else if ((vi->blue_mask > vi->red_mask) && (vi->red_mask > vi->green_mask)) b_o = BRG; + else if ((vi->blue_mask > vi->green_mask) && (vi->green_mask > vi->red_mask)) b_o = BGR; + 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 ); + + for (int i = 0; i < 256; i++) colors[i].pixel = i; + 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++; + int g = data[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: + { + int pixel = -1; + /* + 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; + } + } // 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() ); + + 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" ); + + 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 ); + + 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 + } + */ + + // 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; + } + + if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15; + + XFree( vi ); + + XColor colors[256]; + if (bpp == 8) + { + Colormap cmap = (Colormap)wxTheApp->GetMainColormap( dpy ); + + for (int i = 0; i < 256; i++) colors[i].pixel = i; + 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 ); + if (bpp <= 8) + { + data[pos] = colors[pixel].red >> 8; + data[pos+1] = colors[pixel].green >> 8; + data[pos+2] = colors[pixel].blue >> 8; + } else if (bpp == 15) + { + data[pos] = (pixel >> 7) & 0xf8; + data[pos+1] = (pixel >> 2) & 0xf8; + data[pos+2] = (pixel << 3) & 0xf8; + } else if (bpp == 16) + { + data[pos] = (pixel >> 8) & 0xf8; + data[pos+1] = (pixel >> 3) & 0xfc; + data[pos+2] = (pixel << 3) & 0xf8; + } else + { + data[pos] = (pixel >> 16) & 0xff; + 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; + } + } + */ + + 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) +