1ccbb61aba
2. Common fixes to be able to link minimal sample without stream classes, tree ctrl, list ctrl &c git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1431 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2058 lines
57 KiB
C++
2058 lines
57 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: image.cpp
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// Purpose: wxImage
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// Author: Robert Roebling
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// RCS-ID: $Id$
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// Copyright: (c) Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifdef __GNUG__
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#pragma implementation "image.h"
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#endif
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#include "wx/image.h"
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#include "wx/bitmap.h"
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#include "wx/debug.h"
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#include "wx/log.h"
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#include "wx/app.h"
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#ifdef wxUSE_LIBPNG
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#include "../png/png.h"
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#endif
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#include "wx/filefn.h"
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#include "wx/wfstream.h"
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#include "wx/intl.h"
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#ifdef __SALFORDC__
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#ifdef FAR
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#undef FAR
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#endif
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#endif
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#ifdef __WXMSW__
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#include <windows.h>
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#endif
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//-----------------------------------------------------------------------------
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// wxImage
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//-----------------------------------------------------------------------------
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class wxImageRefData: public wxObjectRefData
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{
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public:
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wxImageRefData(void);
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~wxImageRefData(void);
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int m_width;
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int m_height;
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unsigned char *m_data;
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bool m_hasMask;
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unsigned char m_maskRed,m_maskGreen,m_maskBlue;
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bool m_ok;
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};
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wxImageRefData::wxImageRefData(void)
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{
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m_width = 0;
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m_height = 0;
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m_data = (unsigned char*) NULL;
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m_ok = FALSE;
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m_maskRed = 0;
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m_maskGreen = 0;
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m_maskBlue = 0;
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m_hasMask = FALSE;
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}
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wxImageRefData::~wxImageRefData(void)
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{
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if (m_data) free( m_data );
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}
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wxList wxImage::sm_handlers;
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//-----------------------------------------------------------------------------
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#define M_IMGDATA ((wxImageRefData *)m_refData)
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#if !USE_SHARED_LIBRARIES
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IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject)
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#endif
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wxImage::wxImage()
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{
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}
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wxImage::wxImage( int width, int height )
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{
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Create( width, height );
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}
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wxImage::wxImage( const wxString& name, long type )
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{
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LoadFile( name, type );
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}
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#if wxUSE_STREAM
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wxImage::wxImage( wxInputStream& stream, long type )
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{
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LoadFile( stream, type );
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}
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#endif // wxUSE_STREAM
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wxImage::wxImage( const wxImage& image )
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{
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Ref(image);
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}
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wxImage::wxImage( const wxImage* image )
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{
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if (image) Ref(*image);
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}
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void wxImage::Create( int width, int height )
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{
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m_refData = new wxImageRefData();
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M_IMGDATA->m_data = (unsigned char *) malloc( width*height*3 );
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if (M_IMGDATA->m_data)
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{
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for (int l = 0; l < width*height*3; l++) M_IMGDATA->m_data[l] = 0;
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M_IMGDATA->m_width = width;
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M_IMGDATA->m_height = height;
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M_IMGDATA->m_ok = TRUE;
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}
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else
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{
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UnRef();
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}
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}
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void wxImage::Destroy()
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{
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UnRef();
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}
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wxImage wxImage::Scale( int width, int height )
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{
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wxImage image;
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wxCHECK_MSG( Ok(), image, "invlaid image" );
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wxCHECK_MSG( (width > 0) && (height > 0), image, "invalid image size" );
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image.Create( width, height );
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char unsigned *data = image.GetData();
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wxCHECK_MSG( data, image, "unable to create image" );
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if (M_IMGDATA->m_hasMask)
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image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue );
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double xscale = (double)width / (double)M_IMGDATA->m_width;
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double yscale = (double)height / (double)M_IMGDATA->m_height;
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for (int j = 0; j < height; j++)
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{
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for (int i = 0; i < width; i++)
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{
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int new_pos = 3*(j*width + i);
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int old_pos = 3*((long)(j/yscale)*M_IMGDATA->m_width + (long)(i/xscale));
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data[ new_pos ] = M_IMGDATA->m_data[ old_pos ];
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data[ new_pos+1 ] = M_IMGDATA->m_data[ old_pos+1 ];
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data[ new_pos+2 ] = M_IMGDATA->m_data[ old_pos+2 ];
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}
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}
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return image;
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}
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void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b )
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{
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wxCHECK_RET( Ok(), "invalid image" );
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int w = M_IMGDATA->m_width;
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int h = M_IMGDATA->m_height;
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wxCHECK_RET( (x>=0) && (y>=0) && (x<w) && (y<h), "invalid image index" );
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long pos = (y * w + x) * 3;
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M_IMGDATA->m_data[ pos ] = r;
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M_IMGDATA->m_data[ pos+1 ] = g;
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M_IMGDATA->m_data[ pos+2 ] = b;
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}
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unsigned char wxImage::GetRed( int x, int y )
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{
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wxCHECK_MSG( Ok(), 0, "invalid image" );
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int w = M_IMGDATA->m_width;
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int h = M_IMGDATA->m_height;
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wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, "invalid image index" );
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long pos = (y * w + x) * 3;
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return M_IMGDATA->m_data[pos];
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}
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unsigned char wxImage::GetGreen( int x, int y )
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{
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wxCHECK_MSG( Ok(), 0, "invalid image" );
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int w = M_IMGDATA->m_width;
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int h = M_IMGDATA->m_height;
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wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, "invalid image index" );
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long pos = (y * w + x) * 3;
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return M_IMGDATA->m_data[pos+1];
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}
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unsigned char wxImage::GetBlue( int x, int y )
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{
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wxCHECK_MSG( Ok(), 0, "invalid image" );
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int w = M_IMGDATA->m_width;
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int h = M_IMGDATA->m_height;
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wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, "invalid image index" );
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long pos = (y * w + x) * 3;
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return M_IMGDATA->m_data[pos+2];
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}
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bool wxImage::Ok() const
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{
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return (M_IMGDATA && M_IMGDATA->m_ok);
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}
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char unsigned *wxImage::GetData() const
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{
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wxCHECK_MSG( Ok(), (char unsigned *)NULL, "invalid image" );
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return M_IMGDATA->m_data;
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}
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void wxImage::SetData( char unsigned *WXUNUSED(data) )
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{
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wxCHECK_RET( Ok(), "invalid image" );
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}
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void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b )
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{
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wxCHECK_RET( Ok(), "invalid image" );
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M_IMGDATA->m_maskRed = r;
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M_IMGDATA->m_maskGreen = g;
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M_IMGDATA->m_maskBlue = b;
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M_IMGDATA->m_hasMask = TRUE;
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}
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unsigned char wxImage::GetMaskRed() const
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{
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wxCHECK_MSG( Ok(), 0, "invalid image" );
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return M_IMGDATA->m_maskRed;
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}
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unsigned char wxImage::GetMaskGreen() const
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{
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wxCHECK_MSG( Ok(), 0, "invalid image" );
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return M_IMGDATA->m_maskGreen;
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}
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unsigned char wxImage::GetMaskBlue() const
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{
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wxCHECK_MSG( Ok(), 0, "invalid image" );
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return M_IMGDATA->m_maskBlue;
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}
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void wxImage::SetMask( bool mask )
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{
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wxCHECK_RET( Ok(), "invalid image" );
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M_IMGDATA->m_hasMask = mask;
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}
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bool wxImage::HasMask() const
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{
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wxCHECK_MSG( Ok(), FALSE, "invalid image" );
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return M_IMGDATA->m_hasMask;
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}
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int wxImage::GetWidth() const
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{
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wxCHECK_MSG( Ok(), 0, "invalid image" );
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return M_IMGDATA->m_width;
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}
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int wxImage::GetHeight() const
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{
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wxCHECK_MSG( Ok(), 0, "invalid image" );
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return M_IMGDATA->m_height;
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}
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bool wxImage::LoadFile( const wxString& filename, long type )
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{
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#if wxUSE_STREAM
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if (wxFileExists(filename))
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{
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wxFileInputStream stream(filename);
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return LoadFile(stream, type);
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}
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else {
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wxLogError( "Can't load image from file '%s': file does not exist.", filename.c_str() );
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return FALSE;
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}
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#else // !wxUSE_STREAM
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return FALSE;
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#endif // wxUSE_STREAM
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}
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bool wxImage::SaveFile( const wxString& filename, int type )
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{
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#if wxUSE_STREAM
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wxFileOutputStream stream(filename);
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if ( stream.LastError() == wxStream_NOERROR )
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return SaveFile(stream, type);
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else
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#endif // wxUSE_STREAM
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return FALSE;
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}
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#if wxUSE_STREAM
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bool wxImage::LoadFile( wxInputStream& stream, long type )
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{
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UnRef();
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m_refData = new wxImageRefData;
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wxImageHandler *handler = FindHandler(type);
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if (handler == NULL)
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{
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wxLogWarning( "No image handler for type %d defined.", type );
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return FALSE;
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}
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return handler->LoadFile( this, stream );
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}
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bool wxImage::SaveFile( wxOutputStream& stream, int type )
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{
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wxCHECK_MSG( Ok(), FALSE, "invalid image" );
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wxImageHandler *handler = FindHandler(type);
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if (handler == NULL)
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{
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wxLogWarning( "No image handler for type %d defined.", type );
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return FALSE;
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}
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return handler->SaveFile( this, stream );
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}
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#endif // wxUSE_STREAM
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void wxImage::AddHandler( wxImageHandler *handler )
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{
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// make sure that the memory will be freed at the program end
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sm_handlers.DeleteContents(TRUE);
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sm_handlers.Append( handler );
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}
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void wxImage::InsertHandler( wxImageHandler *handler )
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{
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// make sure that the memory will be freed at the program end
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sm_handlers.DeleteContents(TRUE);
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sm_handlers.Insert( handler );
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}
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bool wxImage::RemoveHandler( const wxString& name )
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{
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wxImageHandler *handler = FindHandler(name);
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if (handler)
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{
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sm_handlers.DeleteObject(handler);
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return TRUE;
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}
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else
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return FALSE;
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}
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wxImageHandler *wxImage::FindHandler( const wxString& name )
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{
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wxNode *node = sm_handlers.First();
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while (node)
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{
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wxImageHandler *handler = (wxImageHandler*)node->Data();
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if (handler->GetName().Cmp(name) == 0) return handler;
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node = node->Next();
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}
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return (wxImageHandler *)NULL;
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}
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wxImageHandler *wxImage::FindHandler( const wxString& extension, long bitmapType )
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{
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wxNode *node = sm_handlers.First();
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while (node)
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{
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wxImageHandler *handler = (wxImageHandler*)node->Data();
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if ( (handler->GetExtension().Cmp(extension) == 0) &&
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(bitmapType == -1 || handler->GetType() == bitmapType) )
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return handler;
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node = node->Next();
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}
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return (wxImageHandler*)NULL;
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}
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wxImageHandler *wxImage::FindHandler( long bitmapType )
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{
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wxNode *node = sm_handlers.First();
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while (node)
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{
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wxImageHandler *handler = (wxImageHandler *)node->Data();
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if (handler->GetType() == bitmapType) return handler;
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node = node->Next();
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}
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return NULL;
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}
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void wxImage::InitStandardHandlers()
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{
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AddHandler( new wxBMPHandler );
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#ifdef wxUSE_LIBPNG
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AddHandler( new wxPNGHandler );
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#endif
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}
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void wxImage::CleanUpHandlers()
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{
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wxNode *node = sm_handlers.First();
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while (node)
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{
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wxImageHandler *handler = (wxImageHandler *)node->Data();
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wxNode *next = node->Next();
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delete handler;
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delete node;
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node = next;
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}
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}
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//-----------------------------------------------------------------------------
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// wxImageHandler
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//-----------------------------------------------------------------------------
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#if !USE_SHARED_LIBRARIES
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IMPLEMENT_DYNAMIC_CLASS(wxImageHandler,wxObject)
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#endif
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#if wxUSE_STREAM
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bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream) )
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{
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return FALSE;
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}
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bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream) )
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{
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return FALSE;
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}
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#endif // wxUSE_STREAM
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//-----------------------------------------------------------------------------
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// wxPNGHandler
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//-----------------------------------------------------------------------------
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|
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#ifdef wxUSE_LIBPNG
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#if !USE_SHARED_LIBRARIES
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IMPLEMENT_DYNAMIC_CLASS(wxPNGHandler,wxImageHandler)
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#endif
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#if wxUSE_STREAM
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static void _PNG_stream_reader( png_structp png_ptr, png_bytep data, png_size_t length )
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{
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((wxInputStream*) png_get_io_ptr( png_ptr )) -> Read(data, length);
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}
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static void _PNG_stream_writer( png_structp png_ptr, png_bytep data, png_size_t length )
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{
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((wxOutputStream*) png_get_io_ptr( png_ptr )) -> Write(data, length);
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}
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|
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bool wxPNGHandler::LoadFile( wxImage *image, wxInputStream& stream )
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{
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// VZ: as this function uses setjmp() the only fool proof error handling
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// method is to use goto (setjmp is not really C++ dtors friendly...)
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unsigned char **lines = (unsigned char **) NULL;
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unsigned int i;
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png_infop info_ptr = (png_infop) NULL;
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image->Destroy();
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png_structp png_ptr = png_create_read_struct( PNG_LIBPNG_VER_STRING,
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(voidp) NULL,
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(png_error_ptr) NULL,
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(png_error_ptr) NULL );
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if (!png_ptr)
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goto error;
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info_ptr = png_create_info_struct( png_ptr );
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if (!info_ptr)
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goto error;
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if (setjmp(png_ptr->jmpbuf))
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goto error;
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|
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if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
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goto error;
|
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|
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png_set_read_fn( png_ptr, &stream, _PNG_stream_reader);
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|
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png_uint_32 width,height;
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int bit_depth,color_type,interlace_type;
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png_read_info( png_ptr, info_ptr );
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png_get_IHDR( png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_type, (int*) NULL, (int*) NULL );
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if (color_type == PNG_COLOR_TYPE_PALETTE)
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png_set_expand( png_ptr );
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png_set_strip_16( png_ptr );
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png_set_packing( png_ptr );
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if (png_get_valid( png_ptr, info_ptr, PNG_INFO_tRNS))
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png_set_expand( png_ptr );
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png_set_filler( png_ptr, 0xff, PNG_FILLER_AFTER );
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|
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image->Create( width, height );
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|
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if (!image->Ok())
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goto error;
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|
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lines = (unsigned char **)malloc( height * sizeof(unsigned char *) );
|
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if (lines == NULL)
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goto error;
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|
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for (i = 0; i < height; i++)
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{
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if ((lines[i] = (unsigned char *)malloc(width * (sizeof(unsigned char) * 4))) == NULL)
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{
|
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for ( unsigned int n = 0; n < i; n++ )
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free( lines[n] );
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goto error;
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}
|
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}
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|
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// loaded successfully!
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{
|
|
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_STREAM
|
|
|
|
#endif
|
|
|
|
// wxUSE_LIBPNG
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxBMPHandler
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#if !USE_SHARED_LIBRARIES
|
|
IMPLEMENT_DYNAMIC_CLASS(wxBMPHandler,wxImageHandler)
|
|
#endif
|
|
|
|
#if wxUSE_STREAM
|
|
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_STREAM
|
|
|
|
#ifdef __WXMSW__
|
|
|
|
wxBitmap wxImage::ConvertToBitmap() const
|
|
{
|
|
// sizeLimit is the MS upper limit for the DIB size
|
|
int sizeLimit = 1024*768*3;
|
|
|
|
// width and height of the device-dependent bitmap
|
|
int width = GetWidth();
|
|
int bmpHeight = GetHeight();
|
|
|
|
// calc the number of bytes per scanline and padding
|
|
int bytePerLine = width*3;
|
|
int sizeDWORD = sizeof( DWORD );
|
|
div_t lineBoundary = div( bytePerLine, sizeDWORD );
|
|
int padding = 0;
|
|
if( lineBoundary.rem > 0 )
|
|
{
|
|
padding = sizeDWORD - lineBoundary.rem;
|
|
bytePerLine += padding;
|
|
}
|
|
// calc the number of DIBs and heights of DIBs
|
|
int numDIB = 1;
|
|
int hRemain = 0;
|
|
int height = sizeLimit/bytePerLine;
|
|
if( height >= bmpHeight )
|
|
height = bmpHeight;
|
|
else
|
|
{
|
|
div_t result = div( bmpHeight, height );
|
|
numDIB = result.quot;
|
|
hRemain = result.rem;
|
|
if( hRemain >0 ) numDIB++;
|
|
}
|
|
|
|
// set bitmap parameters
|
|
wxBitmap bitmap;
|
|
wxCHECK_MSG( Ok(), bitmap, "invalid image" );
|
|
bitmap.SetWidth( width );
|
|
bitmap.SetHeight( bmpHeight );
|
|
bitmap.SetDepth( wxDisplayDepth() );
|
|
|
|
// create a DIB header
|
|
int headersize = sizeof(BITMAPINFOHEADER);
|
|
LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize );
|
|
wxCHECK_MSG( lpDIBh, bitmap, "could not allocate memory for DIB header" );
|
|
// Fill in the DIB header
|
|
lpDIBh->bmiHeader.biSize = headersize;
|
|
lpDIBh->bmiHeader.biWidth = (DWORD)width;
|
|
lpDIBh->bmiHeader.biHeight = (DWORD)(-height);
|
|
lpDIBh->bmiHeader.biSizeImage = bytePerLine*height;
|
|
// the general formula for biSizeImage:
|
|
// ( ( ( ((DWORD)width*24) +31 ) & ~31 ) >> 3 ) * height;
|
|
lpDIBh->bmiHeader.biPlanes = 1;
|
|
lpDIBh->bmiHeader.biBitCount = 24;
|
|
lpDIBh->bmiHeader.biCompression = BI_RGB;
|
|
lpDIBh->bmiHeader.biClrUsed = 0;
|
|
// These seem not really needed for our purpose here.
|
|
lpDIBh->bmiHeader.biClrImportant = 0;
|
|
lpDIBh->bmiHeader.biXPelsPerMeter = 0;
|
|
lpDIBh->bmiHeader.biYPelsPerMeter = 0;
|
|
// memory for DIB data
|
|
unsigned char *lpBits;
|
|
lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage );
|
|
if( !lpBits )
|
|
{
|
|
wxFAIL_MSG( "could not allocate memory for DIB" );
|
|
free( lpDIBh );
|
|
return bitmap;
|
|
}
|
|
|
|
// create and set the device-dependent bitmap
|
|
HDC hdc = ::GetDC(NULL);
|
|
HDC memdc = ::CreateCompatibleDC( hdc );
|
|
HBITMAP hbitmap;
|
|
hbitmap = ::CreateCompatibleBitmap( hdc, width, bmpHeight );
|
|
::SelectObject( memdc, hbitmap);
|
|
|
|
// copy image data into DIB data and then into DDB (in a loop)
|
|
unsigned char *data = GetData();
|
|
int i, j, n;
|
|
int origin = 0;
|
|
unsigned char *ptdata = data;
|
|
unsigned char *ptbits;
|
|
|
|
for( n=0; n<numDIB; n++ )
|
|
{
|
|
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; j<height; j++ )
|
|
{
|
|
for( i=0; i<width; i++ )
|
|
{
|
|
*(ptbits++) = *(ptdata+2);
|
|
*(ptbits++) = *(ptdata+1);
|
|
*(ptbits++) = *(ptdata );
|
|
ptdata += 3;
|
|
}
|
|
for( i=0; i< padding; i++ ) *(ptbits++) = 0;
|
|
}
|
|
::StretchDIBits( memdc, 0, origin, width, height,\
|
|
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
|
|
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<numDIB; n++ )
|
|
{
|
|
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( int j=0; j<height; j++ )
|
|
{
|
|
for( int i=0; i<width; i++ )
|
|
{
|
|
if( (*(ptdata++)!=r) | (*(ptdata++)!=g) | (*(ptdata++)!=b) )
|
|
{
|
|
*(ptbits++) = one;
|
|
*(ptbits++) = one;
|
|
*(ptbits++) = one;
|
|
}
|
|
else
|
|
{
|
|
*(ptbits++) = zero;
|
|
*(ptbits++) = zero;
|
|
*(ptbits++) = zero;
|
|
}
|
|
}
|
|
for( i=0; i< padding; i++ ) *(ptbits++) = zero;
|
|
}
|
|
::StretchDIBits( memdc, 0, origin, width, height,\
|
|
0, 0, width, height, lpBits, lpDIBh, DIB_RGB_COLORS, SRCCOPY);
|
|
origin += height;
|
|
}
|
|
// create a wxMask object
|
|
wxMask *mask = new wxMask();
|
|
mask->SetMaskBitmap( (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 );
|
|
::ReleaseDC(NULL, hdc);
|
|
free(lpDIBh);
|
|
free(lpBits);
|
|
|
|
// check the wxBitmap object
|
|
if( bitmap.GetHBITMAP() )
|
|
bitmap.SetOk( TRUE );
|
|
else
|
|
bitmap.SetOk( FALSE );
|
|
|
|
return bitmap;
|
|
}
|
|
|
|
wxImage::wxImage( const wxBitmap &bitmap )
|
|
{
|
|
// check the bitmap
|
|
if( !bitmap.Ok() )
|
|
{
|
|
wxFAIL_MSG( "invalid bitmap" );
|
|
return;
|
|
}
|
|
|
|
// create an wxImage object
|
|
int width = bitmap.GetWidth();
|
|
int height = bitmap.GetHeight();
|
|
Create( width, height );
|
|
unsigned char *data = GetData();
|
|
if( !data )
|
|
{
|
|
wxFAIL_MSG( "could not allocate data for image" );
|
|
return;
|
|
}
|
|
|
|
// calc the number of bytes per scanline and padding in the DIB
|
|
int bytePerLine = width*3;
|
|
int sizeDWORD = sizeof( DWORD );
|
|
div_t lineBoundary = div( bytePerLine, sizeDWORD );
|
|
int padding = 0;
|
|
if( lineBoundary.rem > 0 )
|
|
{
|
|
padding = sizeDWORD - lineBoundary.rem;
|
|
bytePerLine += padding;
|
|
}
|
|
|
|
// create a DIB header
|
|
int headersize = sizeof(BITMAPINFOHEADER);
|
|
LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize );
|
|
if( !lpDIBh )
|
|
{
|
|
wxFAIL_MSG( "could not allocate data for DIB header" );
|
|
free( data );
|
|
return;
|
|
}
|
|
// Fill in the DIB header
|
|
lpDIBh->bmiHeader.biSize = headersize;
|
|
lpDIBh->bmiHeader.biWidth = width;
|
|
lpDIBh->bmiHeader.biHeight = -height;
|
|
lpDIBh->bmiHeader.biSizeImage = bytePerLine * height;
|
|
lpDIBh->bmiHeader.biPlanes = 1;
|
|
lpDIBh->bmiHeader.biBitCount = 24;
|
|
lpDIBh->bmiHeader.biCompression = BI_RGB;
|
|
lpDIBh->bmiHeader.biClrUsed = 0;
|
|
// These seem not really needed for our purpose here.
|
|
lpDIBh->bmiHeader.biClrImportant = 0;
|
|
lpDIBh->bmiHeader.biXPelsPerMeter = 0;
|
|
lpDIBh->bmiHeader.biYPelsPerMeter = 0;
|
|
// memory for DIB data
|
|
unsigned char *lpBits;
|
|
lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage );
|
|
if( !lpBits )
|
|
{
|
|
wxFAIL_MSG( "could not allocate data for DIB" );
|
|
free( data );
|
|
free( lpDIBh );
|
|
return;
|
|
}
|
|
|
|
// copy data from the device-dependent bitmap to the DIB
|
|
HDC hdc = ::GetDC(NULL);
|
|
HBITMAP hbitmap;
|
|
hbitmap = (HBITMAP) bitmap.GetHBITMAP();
|
|
::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS );
|
|
|
|
// copy DIB data into the wxImage object
|
|
int i, j;
|
|
unsigned char *ptdata = data;
|
|
unsigned char *ptbits = lpBits;
|
|
for( i=0; i<height; i++ )
|
|
{
|
|
for( j=0; j<width; j++ )
|
|
{
|
|
*(ptdata++) = *(ptbits+2);
|
|
*(ptdata++) = *(ptbits+1);
|
|
*(ptdata++) = *(ptbits );
|
|
ptbits += 3;
|
|
}
|
|
ptbits += padding;
|
|
}
|
|
|
|
// 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
|
|
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<height; i++ )
|
|
{
|
|
for( j=0; j<width; j++ )
|
|
{
|
|
if( *ptbits != 0 )
|
|
ptdata += 3;
|
|
else
|
|
{
|
|
*(ptdata++) = r;
|
|
*(ptdata++) = g;
|
|
*(ptdata++) = b;
|
|
}
|
|
ptbits += 3;
|
|
}
|
|
ptbits += padding;
|
|
}
|
|
SetMaskColour( r, g, b );
|
|
SetMask( TRUE );
|
|
}
|
|
else
|
|
{
|
|
SetMask( FALSE );
|
|
}
|
|
// free allocated resources
|
|
::ReleaseDC(NULL, hdc);
|
|
free(lpDIBh);
|
|
free(lpBits);
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef __WXGTK__
|
|
|
|
#include "gtk/gtk.h"
|
|
#include "gdk/gdk.h"
|
|
#include "gdk/gdkx.h"
|
|
|
|
wxBitmap wxImage::ConvertToBitmap() const
|
|
{
|
|
wxBitmap bitmap;
|
|
|
|
wxCHECK_MSG( Ok(), bitmap, "invalid image" );
|
|
|
|
int width = GetWidth();
|
|
int height = GetHeight();
|
|
|
|
bitmap.SetHeight( height );
|
|
bitmap.SetWidth( width );
|
|
|
|
// Create picture
|
|
|
|
GdkImage *data_image =
|
|
gdk_image_new( GDK_IMAGE_FASTEST, gdk_visual_get_system(), width, height );
|
|
|
|
bitmap.SetPixmap( gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, -1 ) );
|
|
|
|
// 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
|
|
|
|
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();
|
|
if ((visual->red_mask > visual->green_mask) && (visual->green_mask > visual->blue_mask)) b_o = RGB;
|
|
else if ((visual->red_mask > visual->blue_mask) && (visual->blue_mask > visual->green_mask)) b_o = RGB;
|
|
else if ((visual->blue_mask > visual->red_mask) && (visual->red_mask > visual->green_mask)) b_o = BRG;
|
|
else if ((visual->blue_mask > visual->green_mask) && (visual->green_mask > visual->red_mask)) b_o = BGR;
|
|
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++;
|
|
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 );
|
|
}
|
|
|
|
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
|
|
{
|
|
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() );
|
|
|
|
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() );
|
|
|
|
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++)
|
|
{
|
|
for (int i = 0; i < bitmap.GetWidth(); i++)
|
|
{
|
|
int pixel = gdk_image_get_pixel( gdk_image, i, j );
|
|
if (bpp <= 8)
|
|
{
|
|
data[pos] = cmap->colors[pixel].red >> 8;
|
|
data[pos+1] = cmap->colors[pixel].green >> 8;
|
|
data[pos+2] = cmap->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;
|
|
}
|
|
}
|
|
|
|
gdk_image_destroy( gdk_image );
|
|
if (gdk_image_mask) gdk_image_destroy( gdk_image_mask );
|
|
}
|
|
|
|
#endif
|
|
|
|
#ifdef __WXMOTIF__
|
|
|
|
#include <Xm/Xm.h>
|
|
#include "wx/utils.h"
|
|
#include <math.h>
|
|
|
|
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 ];
|
|
|
|
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
|