#include "wx/wxprec.h"
#ifdef __BORLANDC__
-#pragma hdrstop
+ #pragma hdrstop
#endif
#include "wx/image.h"
#include "wx/debug.h"
#include "wx/log.h"
#include "wx/app.h"
-#if wxUSE_LIBPNG
-#include "../png/png.h"
-#endif
-#if wxUSE_LIBJPEG
-extern "C" {
-#include <jpeglib.h>
-}
-#endif
#include "wx/filefn.h"
#include "wx/wfstream.h"
#include "wx/intl.h"
#include <string.h>
#ifdef __SALFORDC__
-#ifdef FAR
-#undef FAR
-#endif
+ #undef FAR
#endif
#ifdef __WXMSW__
-#include <windows.h>
+ #include "wx/msw/private.h"
#endif
//-----------------------------------------------------------------------------
class wxImageRefData: public wxObjectRefData
{
-
+
public:
- wxImageRefData(void);
- ~wxImageRefData(void);
-
+ wxImageRefData();
+ ~wxImageRefData();
+
int m_width;
int m_height;
unsigned char *m_data;
bool m_ok;
};
-wxImageRefData::wxImageRefData(void)
+wxImageRefData::wxImageRefData()
{
m_width = 0;
m_height = 0;
m_hasMask = FALSE;
}
-wxImageRefData::~wxImageRefData(void)
+wxImageRefData::~wxImageRefData()
{
if (m_data) free( m_data );
}
#define M_IMGDATA ((wxImageRefData *)m_refData)
#if !USE_SHARED_LIBRARIES
-IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject)
+ IMPLEMENT_DYNAMIC_CLASS(wxImage, wxObject)
#endif
wxImage::wxImage()
LoadFile( name, type );
}
+wxImage::wxImage( const wxString& name, const wxString& mimetype )
+{
+ LoadFile( name, mimetype );
+}
+
#if wxUSE_STREAMS
wxImage::wxImage( wxInputStream& stream, long type )
{
LoadFile( stream, type );
}
+
+wxImage::wxImage( wxInputStream& stream, const wxString& mimetype )
+{
+ LoadFile( stream, mimetype );
+}
#endif // wxUSE_STREAMS
wxImage::wxImage( const wxImage& image )
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;
UnRef();
}
-wxImage wxImage::Scale( int width, int height )
+wxImage wxImage::Scale( int width, int height ) const
{
wxImage image;
-
- wxCHECK_MSG( Ok(), image, "invlaid image" );
-
- wxCHECK_MSG( (width > 0) && (height > 0), image, "invalid image size" );
-
+
+ wxCHECK_MSG( Ok(), image, T("invalid image") );
+
+ wxCHECK_MSG( (width > 0) && (height > 0), image, T("invalid image size") );
+
image.Create( width, height );
-
+
char unsigned *data = image.GetData();
-
- wxCHECK_MSG( data, image, "unable to create image" );
-
+
+ wxCHECK_MSG( data, image, T("unable to create image") );
+
if (M_IMGDATA->m_hasMask)
image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue );
-
+
long old_height = M_IMGDATA->m_height;
long old_width = M_IMGDATA->m_width;
-
+
char unsigned *source_data = M_IMGDATA->m_data;
char unsigned *target_data = data;
-
+
for (long j = 0; j < height; j++)
{
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)),
+ memcpy( target_data,
+ source_data + 3*(y_offset + ((i * old_width )/ width)),
3 );
target_data += 3;
}
}
+
+ return image;
+}
+
+wxImage wxImage::GetSubImage( const wxRect &rect ) const
+{
+ wxImage image;
+
+ wxCHECK_MSG( Ok(), image, T("invalid image") );
+
+ wxCHECK_MSG( (rect.GetLeft()>=0) && (rect.GetTop()>=0) && (rect.GetRight()<=GetWidth()) && (rect.GetBottom()<=GetHeight())
+ , image, T("invalid subimage size") );
+
+ int subwidth=rect.GetWidth();
+ const int subheight=rect.GetHeight();
+
+ image.Create( subwidth, subheight );
+
+ char unsigned *subdata = image.GetData(), *data=GetData();
+
+ wxCHECK_MSG( subdata, image, T("unable to create image") );
+
+ if (M_IMGDATA->m_hasMask)
+ image.SetMaskColour( M_IMGDATA->m_maskRed, M_IMGDATA->m_maskGreen, M_IMGDATA->m_maskBlue );
+
+ const int subleft=3*rect.GetLeft();
+ const int width=3*GetWidth();
+ subwidth*=3;
+ data+=rect.GetTop()*width+subleft;
+
+ for (long j = 0; j < subheight; ++j)
+ {
+ memcpy( subdata, data, subwidth);
+ subdata+=subwidth;
+ data+=width;
+ }
+
return image;
}
void wxImage::SetRGB( int x, int y, unsigned char r, unsigned char g, unsigned char b )
{
- wxCHECK_RET( Ok(), "invalid image" );
-
+ wxCHECK_RET( Ok(), T("invalid image") );
+
int w = M_IMGDATA->m_width;
int h = M_IMGDATA->m_height;
-
- wxCHECK_RET( (x>=0) && (y>=0) && (x<w) && (y<h), "invalid image index" );
-
+
+ wxCHECK_RET( (x>=0) && (y>=0) && (x<w) && (y<h), T("invalid image index") );
+
long pos = (y * w + x) * 3;
-
+
M_IMGDATA->m_data[ pos ] = r;
M_IMGDATA->m_data[ pos+1 ] = g;
M_IMGDATA->m_data[ pos+2 ] = b;
unsigned char wxImage::GetRed( int x, int y )
{
- wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+ wxCHECK_MSG( Ok(), 0, T("invalid image") );
+
int w = M_IMGDATA->m_width;
int h = M_IMGDATA->m_height;
-
- wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, "invalid image index" );
-
+
+ wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, T("invalid image index") );
+
long pos = (y * w + x) * 3;
-
+
return M_IMGDATA->m_data[pos];
}
unsigned char wxImage::GetGreen( int x, int y )
{
- wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+ wxCHECK_MSG( Ok(), 0, T("invalid image") );
+
int w = M_IMGDATA->m_width;
int h = M_IMGDATA->m_height;
-
- wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, "invalid image index" );
-
+
+ wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, T("invalid image index") );
+
long pos = (y * w + x) * 3;
-
+
return M_IMGDATA->m_data[pos+1];
}
unsigned char wxImage::GetBlue( int x, int y )
{
- wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+ wxCHECK_MSG( Ok(), 0, T("invalid image") );
+
int w = M_IMGDATA->m_width;
int h = M_IMGDATA->m_height;
-
- wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, "invalid image index" );
-
+
+ wxCHECK_MSG( (x>=0) && (y>=0) && (x<w) && (y<h), 0, T("invalid image index") );
+
long pos = (y * w + x) * 3;
-
+
return M_IMGDATA->m_data[pos+2];
}
char unsigned *wxImage::GetData() const
{
- wxCHECK_MSG( Ok(), (char unsigned *)NULL, "invalid image" );
-
+ wxCHECK_MSG( Ok(), (char unsigned *)NULL, T("invalid image") );
+
return M_IMGDATA->m_data;
}
void wxImage::SetData( char unsigned *data )
{
- wxCHECK_RET( Ok(), "invalid image" );
+ wxCHECK_RET( Ok(), T("invalid image") );
- memcpy(M_IMGDATA->m_data, data, M_IMGDATA->m_width * M_IMGDATA->m_height * 3);
+ wxImageRefData *newRefData = new wxImageRefData();
+
+ newRefData->m_width = M_IMGDATA->m_width;
+ newRefData->m_height = M_IMGDATA->m_height;
+ newRefData->m_data = data;
+ newRefData->m_ok = TRUE;
+ newRefData->m_maskRed = M_IMGDATA->m_maskRed;
+ newRefData->m_maskGreen = M_IMGDATA->m_maskGreen;
+ newRefData->m_maskBlue = M_IMGDATA->m_maskBlue;
+ newRefData->m_hasMask = M_IMGDATA->m_hasMask;
+
+ UnRef();
+
+ m_refData = newRefData;
}
void wxImage::SetMaskColour( unsigned char r, unsigned char g, unsigned char b )
{
- wxCHECK_RET( Ok(), "invalid image" );
-
+ wxCHECK_RET( Ok(), T("invalid image") );
+
M_IMGDATA->m_maskRed = r;
M_IMGDATA->m_maskGreen = g;
M_IMGDATA->m_maskBlue = b;
unsigned char wxImage::GetMaskRed() const
{
- wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+ wxCHECK_MSG( Ok(), 0, T("invalid image") );
+
return M_IMGDATA->m_maskRed;
}
unsigned char wxImage::GetMaskGreen() const
{
- wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+ wxCHECK_MSG( Ok(), 0, T("invalid image") );
+
return M_IMGDATA->m_maskGreen;
}
unsigned char wxImage::GetMaskBlue() const
{
- wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+ wxCHECK_MSG( Ok(), 0, T("invalid image") );
+
return M_IMGDATA->m_maskBlue;
}
void wxImage::SetMask( bool mask )
{
- wxCHECK_RET( Ok(), "invalid image" );
-
+ wxCHECK_RET( Ok(), T("invalid image") );
+
M_IMGDATA->m_hasMask = mask;
}
bool wxImage::HasMask() const
{
- wxCHECK_MSG( Ok(), FALSE, "invalid image" );
-
+ wxCHECK_MSG( Ok(), FALSE, T("invalid image") );
+
return M_IMGDATA->m_hasMask;
}
int wxImage::GetWidth() const
{
- wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+ wxCHECK_MSG( Ok(), 0, T("invalid image") );
+
return M_IMGDATA->m_width;
}
int wxImage::GetHeight() const
{
- wxCHECK_MSG( Ok(), 0, "invalid image" );
-
+ wxCHECK_MSG( Ok(), 0, T("invalid image") );
+
return M_IMGDATA->m_height;
}
wxFileInputStream stream(filename);
return LoadFile(stream, type);
}
-
+
else {
- wxLogError( "Can't load image from file '%s': file does not exist.", filename.c_str() );
-
+ wxLogError( T("Can't load image from file '%s': file does not exist."), filename.c_str() );
+
+ return FALSE;
+ }
+#else // !wxUSE_STREAMS
+ return FALSE;
+#endif // wxUSE_STREAMS
+}
+
+bool wxImage::LoadFile( const wxString& filename, const wxString& mimetype )
+{
+#if wxUSE_STREAMS
+ if (wxFileExists(filename))
+ {
+ wxFileInputStream stream(filename);
+ return LoadFile(stream, mimetype);
+ }
+
+ else {
+ wxLogError( T("Can't load image from file '%s': file does not exist."), filename.c_str() );
+
return FALSE;
}
#else // !wxUSE_STREAMS
{
#if wxUSE_STREAMS
wxFileOutputStream stream(filename);
-
+
if ( stream.LastError() == wxStream_NOERROR )
return SaveFile(stream, type);
else
return FALSE;
}
+bool wxImage::SaveFile( const wxString& filename, const wxString& mimetype )
+{
+#if wxUSE_STREAMS
+ wxFileOutputStream stream(filename);
+
+ if ( stream.LastError() == wxStream_NOERROR )
+ return SaveFile(stream, mimetype);
+ else
+#endif // wxUSE_STREAMS
+ return FALSE;
+}
+
#if wxUSE_STREAMS
+
bool wxImage::LoadFile( wxInputStream& stream, long type )
{
UnRef();
-
+
m_refData = new wxImageRefData;
-
- wxImageHandler *handler = FindHandler(type);
-
+
+ wxImageHandler *handler;
+
+ if (type==wxBITMAP_TYPE_ANY)
+ {
+ wxList &list=GetHandlers();
+
+ for ( wxList::Node *node = list.GetFirst(); node; node = node->GetNext() )
+ {
+ handler=(wxImageHandler*)node->GetData();
+ if (handler->CanRead( stream ))
+ return handler->LoadFile( this, stream );
+
+ }
+
+ wxLogWarning( T("No handler found for this image.") );
+ return FALSE;
+ }
+
+ handler = FindHandler(type);
+
if (handler == NULL)
{
- wxLogWarning( "No image handler for type %d defined.", type );
-
+ wxLogWarning( T("No image handler for type %d defined."), type );
+
return FALSE;
}
-
+
+ return handler->LoadFile( this, stream );
+}
+
+bool wxImage::LoadFile( wxInputStream& stream, const wxString& mimetype )
+{
+ UnRef();
+
+ m_refData = new wxImageRefData;
+
+ wxImageHandler *handler = FindHandlerMime(mimetype);
+
+ if (handler == NULL)
+ {
+ wxLogWarning( T("No image handler for type %s defined."), mimetype.GetData() );
+
+ return FALSE;
+ }
+
return handler->LoadFile( this, stream );
}
bool wxImage::SaveFile( wxOutputStream& stream, int type )
{
- wxCHECK_MSG( Ok(), FALSE, "invalid image" );
-
+ wxCHECK_MSG( Ok(), FALSE, T("invalid image") );
+
wxImageHandler *handler = FindHandler(type);
-
+
if (handler == NULL)
{
- wxLogWarning( "No image handler for type %d defined.", type );
-
+ wxLogWarning( T("No image handler for type %d defined."), type );
+
return FALSE;
}
-
+
+ return handler->SaveFile( this, stream );
+}
+
+bool wxImage::SaveFile( wxOutputStream& stream, const wxString& mimetype )
+{
+ wxCHECK_MSG( Ok(), FALSE, T("invalid image") );
+
+ wxImageHandler *handler = FindHandlerMime(mimetype);
+
+ if (handler == NULL)
+ {
+ wxLogWarning( T("No image handler for type %s defined."), mimetype.GetData() );
+
+ return FALSE;
+ }
+
return handler->SaveFile( this, stream );
}
#endif // wxUSE_STREAMS
{
// make sure that the memory will be freed at the program end
sm_handlers.DeleteContents(TRUE);
-
+
sm_handlers.Append( handler );
}
{
// make sure that the memory will be freed at the program end
sm_handlers.DeleteContents(TRUE);
-
+
sm_handlers.Insert( handler );
}
{
wxImageHandler *handler = (wxImageHandler*)node->Data();
if (handler->GetName().Cmp(name) == 0) return handler;
-
+
node = node->Next();
}
return (wxImageHandler *)NULL;
return NULL;
}
+wxImageHandler *wxImage::FindHandlerMime( const wxString& mimetype )
+{
+ wxNode *node = sm_handlers.First();
+ while (node)
+ {
+ wxImageHandler *handler = (wxImageHandler *)node->Data();
+ if (handler->GetMimeType().IsSameAs(mimetype, FALSE)) return handler;
+ node = node->Next();
+ }
+ return NULL;
+}
+
void wxImage::InitStandardHandlers()
{
- AddHandler( new wxBMPHandler );
-#if wxUSE_LIBPNG
- AddHandler( new wxPNGHandler );
-#endif
+ AddHandler( new wxBMPHandler );
}
void wxImage::CleanUpHandlers()
#endif
#if wxUSE_STREAMS
-bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream) )
+bool wxImageHandler::LoadFile( wxImage *WXUNUSED(image), wxInputStream& WXUNUSED(stream), bool WXUNUSED(verbose) )
{
return FALSE;
}
-bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream) )
+bool wxImageHandler::SaveFile( wxImage *WXUNUSED(image), wxOutputStream& WXUNUSED(stream), bool WXUNUSED(verbose) )
{
return FALSE;
}
-#endif // wxUSE_STREAMS
-
-//-----------------------------------------------------------------------------
-// wxPNGHandler
-//-----------------------------------------------------------------------------
-
-#if wxUSE_LIBPNG
-
-#if !USE_SHARED_LIBRARIES
-IMPLEMENT_DYNAMIC_CLASS(wxPNGHandler,wxImageHandler)
-#endif
-
-
-#if wxUSE_STREAMS
-static void _PNG_stream_reader( png_structp png_ptr, png_bytep data, png_size_t length )
-{
- ((wxInputStream*) png_get_io_ptr( png_ptr )) -> Read(data, length);
-}
-static void _PNG_stream_writer( png_structp png_ptr, png_bytep data, png_size_t length )
+bool wxImageHandler::CanRead( wxInputStream& WXUNUSED(stream) )
{
- ((wxOutputStream*) png_get_io_ptr( png_ptr )) -> Write(data, length);
-}
-
-bool wxPNGHandler::LoadFile( wxImage *image, wxInputStream& stream )
-{
- // VZ: as this function uses setjmp() the only fool proof error handling
- // method is to use goto (setjmp is not really C++ dtors friendly...)
-
- unsigned char **lines = (unsigned char **) NULL;
- unsigned int i;
- png_infop info_ptr = (png_infop) NULL;
-
- image->Destroy();
-
- png_structp png_ptr = png_create_read_struct( PNG_LIBPNG_VER_STRING,
- (voidp) NULL,
- (png_error_ptr) NULL,
- (png_error_ptr) NULL );
- if (!png_ptr)
- goto error;
-
- info_ptr = png_create_info_struct( png_ptr );
- if (!info_ptr)
- goto error;
-
- if (setjmp(png_ptr->jmpbuf))
- goto error;
-
- if (info_ptr->color_type == PNG_COLOR_TYPE_RGB_ALPHA)
- goto error;
-
- png_set_read_fn( png_ptr, &stream, _PNG_stream_reader);
-
- png_uint_32 width,height;
- int bit_depth,color_type,interlace_type;
-
- png_read_info( png_ptr, info_ptr );
- png_get_IHDR( png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, &interlace_type, (int*) NULL, (int*) NULL );
-
- if (color_type == PNG_COLOR_TYPE_PALETTE)
- png_set_expand( png_ptr );
-
- png_set_strip_16( png_ptr );
- png_set_packing( png_ptr );
- if (png_get_valid( png_ptr, info_ptr, PNG_INFO_tRNS))
- png_set_expand( png_ptr );
- png_set_filler( png_ptr, 0xff, PNG_FILLER_AFTER );
-
- image->Create( width, height );
-
- if (!image->Ok())
- goto error;
-
- lines = (unsigned char **)malloc( height * sizeof(unsigned char *) );
- if (lines == NULL)
- goto error;
-
- for (i = 0; i < height; i++)
- {
- if ((lines[i] = (unsigned char *)malloc(width * (sizeof(unsigned char) * 4))) == NULL)
- {
- for ( unsigned int n = 0; n < i; n++ )
- free( lines[n] );
- goto error;
- }
- }
-
- // loaded successfully!
- {
- int transp = 0;
- png_read_image( png_ptr, lines );
- png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL );
- unsigned char *ptr = image->GetData();
- if ((color_type == PNG_COLOR_TYPE_GRAY) ||
- (color_type == PNG_COLOR_TYPE_GRAY_ALPHA))
- {
- for (unsigned int y = 0; y < height; y++)
- {
- unsigned char *ptr2 = lines[y];
- for (unsigned int x = 0; x < width; x++)
- {
- unsigned char r = *ptr2++;
- unsigned char a = *ptr2++;
- if (a < 128)
- {
- *ptr++ = 255;
- *ptr++ = 0;
- *ptr++ = 255;
- transp = 1;
- }
- else
- {
- *ptr++ = r;
- *ptr++ = r;
- *ptr++ = r;
- }
- }
- }
- }
- else
- {
- for (unsigned int y = 0; y < height; y++)
- {
- unsigned char *ptr2 = lines[y];
- for (unsigned int x = 0; x < width; x++)
- {
- unsigned char r = *ptr2++;
- unsigned char g = *ptr2++;
- unsigned char b = *ptr2++;
- unsigned char a = *ptr2++;
- if (a < 128)
- {
- *ptr++ = 255;
- *ptr++ = 0;
- *ptr++ = 255;
- transp = 1;
- }
- else
- {
- if ((r == 255) && (g == 0) && (b == 255)) r = 254;
- *ptr++ = r;
- *ptr++ = g;
- *ptr++ = b;
- }
- }
- }
- }
-
- for ( unsigned int j = 0; j < height; j++ )
- free( lines[j] );
- free( lines );
-
- if (transp)
- {
- image->SetMaskColour( 255, 0, 255 );
- }
- else
- {
- image->SetMask( FALSE );
- }
- }
-
- return TRUE;
-
-error:
- wxLogError(_("Couldn't load a PNG image - probably file is corrupted."));
-
- if ( image->Ok() )
- {
- image->Destroy();
- }
-
- if ( lines )
- {
- free( lines );
- }
-
- if ( png_ptr )
- {
- if ( info_ptr )
- {
- png_destroy_read_struct( &png_ptr, &info_ptr, (png_infopp) NULL );
- free(info_ptr);
- }
- else
- png_destroy_read_struct( &png_ptr, (png_infopp) NULL, (png_infopp) NULL );
- }
return FALSE;
}
-
-bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream )
+bool wxImageHandler::CanRead( const wxString& name )
{
- {
- 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_STREAMS
-
-#endif
-
-// wxUSE_LIBPNG
-
-
-//-----------------------------------------------------------------------------
-// wxJPEGHandler
-//-----------------------------------------------------------------------------
-
-#if wxUSE_LIBJPEG
-
-#if !USE_SHARED_LIBRARIES
-IMPLEMENT_DYNAMIC_CLASS(wxJPEGHandler,wxImageHandler)
-#endif
-
#if wxUSE_STREAMS
-
-
-//------------- JPEG Data Source Manager
-
-typedef struct {
- struct jpeg_source_mgr pub; /* public fields */
-
- JOCTET* buffer; /* start of buffer */
-} my_source_mgr;
-
-typedef my_source_mgr * my_src_ptr;
-
-METHODDEF(void) my_init_source ( j_decompress_ptr cinfo )
-{
-}
-
-METHODDEF(boolean) my_fill_input_buffer ( j_decompress_ptr cinfo )
-{
- return TRUE;
-}
-
-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;
-}
-
-METHODDEF(void) my_term_source ( j_decompress_ptr cinfo )
-{
- my_src_ptr src = (my_src_ptr) cinfo->src;
-
- free (src->buffer);
-}
-
-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;
+ if (wxFileExists(name))
+ {
+ wxFileInputStream stream(name);
+ return CanRead(stream);
}
- 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;
-}
-
+ else {
+ wxLogError( T("Can't check image format of file '%s': file does not exist."), name.c_str() );
-bool wxJPEGHandler::LoadFile( wxImage *image, wxInputStream& stream )
-{
- struct jpeg_decompress_struct cinfo;
- struct jpeg_error_mgr jerr;
- JSAMPARRAY tempbuf;
- unsigned char *ptr;
- unsigned stride;
-
- image->Destroy();
- 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;
}
- 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;
-}
-
-
-
-
-
-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)
-{
- 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;
+#else // !wxUSE_STREAMS
+ return FALSE;
+#endif // wxUSE_STREAMS
}
-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
+// MSW conversion routines
//-----------------------------------------------------------------------------
-#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
{
+ if ( !Ok() )
+ return wxNullBitmap;
+
// sizeLimit is the MS upper limit for the DIB size
- int sizeLimit = 1024*768*3;
-
+#ifdef WIN32
+ int sizeLimit = 1024*768*3;
+#else
+ int sizeLimit = 0x7fff ;
+#endif
+
// 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 lineBoundary = bytePerLine % sizeDWORD;
int padding = 0;
- if( lineBoundary.rem > 0 )
+ if( lineBoundary > 0 )
{
- padding = sizeDWORD - lineBoundary.rem;
+ padding = sizeDWORD - lineBoundary;
bytePerLine += padding;
}
// calc the number of DIBs and heights of DIBs
int hRemain = 0;
int height = sizeLimit/bytePerLine;
if( height >= bmpHeight )
- height = bmpHeight;
+ height = bmpHeight;
else
{
- div_t result = div( bmpHeight, height );
- numDIB = result.quot;
- hRemain = result.rem;
+ numDIB = bmpHeight / height;
+ hRemain = bmpHeight % height;
if( hRemain >0 ) numDIB++;
}
-
+
// set bitmap parameters
wxBitmap bitmap;
- wxCHECK_MSG( Ok(), bitmap, "invalid image" );
+ wxCHECK_MSG( Ok(), bitmap, T("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" );
+ wxCHECK_MSG( lpDIBh, bitmap, T("could not allocate memory for DIB header") );
// Fill in the DIB header
lpDIBh->bmiHeader.biSize = headersize;
lpDIBh->bmiHeader.biWidth = (DWORD)width;
lpBits = (unsigned char *)malloc( lpDIBh->bmiHeader.biSizeImage );
if( !lpBits )
{
- wxFAIL_MSG( "could not allocate memory for DIB" );
+ wxFAIL_MSG( T("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);
-
+ ::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;
+ 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++ )
// or the following lines
// hbitmap = ::CreateCompatibleBitmap( hdc, width, height );
// HDC memdc = ::CreateCompatibleDC( hdc );
- // ::SelectObject( memdc, hbitmap);
+ // ::SelectObject( memdc, hbitmap);
// ::SetDIBitsToDevice( memdc, 0, 0, width, height,
// 0, 0, 0, height, (void *)lpBits, lpDIBh, DIB_RGB_COLORS);
- // ::SelectObject( memdc, 0 );
- // ::DeleteDC( memdc );
+ // ::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;
+ ::SelectObject( memdc, hbitmap);
+ if( numDIB == 1 ) height = bmpHeight;
else height = sizeLimit/bytePerLine;
lpDIBh->bmiHeader.biHeight = (DWORD)(-height);
lpDIBh->bmiHeader.biSizeImage = bytePerLine*height;
{
// redefine height and size of the (possibly) last smaller DIB
// memory is not reallocated
- height = hRemain;
+ height = hRemain;
lpDIBh->bmiHeader.biHeight = (DWORD)(-height);
lpDIBh->bmiHeader.biSizeImage = bytePerLine*height;
}
bitmap.SetMask( mask );
*/
}
-
- // free allocated resources
- ::SelectObject( memdc, 0 );
- ::DeleteDC( memdc );
- ::ReleaseDC(NULL, hdc);
+
+ // free allocated resources
+ ::SelectObject( memdc, 0 );
+ ::DeleteDC( memdc );
+ ::ReleaseDC(NULL, hdc);
free(lpDIBh);
free(lpBits);
-
+
// check the wxBitmap object
if( bitmap.GetHBITMAP() )
bitmap.SetOk( TRUE );
else
bitmap.SetOk( FALSE );
-
+
return bitmap;
}
// check the bitmap
if( !bitmap.Ok() )
{
- wxFAIL_MSG( "invalid bitmap" );
+ wxFAIL_MSG( T("invalid bitmap") );
return;
}
-
+
// create an wxImage object
int width = bitmap.GetWidth();
int height = bitmap.GetHeight();
- Create( width, height );
+ Create( width, height );
unsigned char *data = GetData();
if( !data )
{
- wxFAIL_MSG( "could not allocate data for image" );
+ wxFAIL_MSG( T("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 lineBoundary = bytePerLine % sizeDWORD;
int padding = 0;
- if( lineBoundary.rem > 0 )
+ if( lineBoundary > 0 )
{
- padding = sizeDWORD - lineBoundary.rem;
+ padding = sizeDWORD - lineBoundary;
bytePerLine += padding;
}
-
+
// create a DIB header
int headersize = sizeof(BITMAPINFOHEADER);
LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize );
if( !lpDIBh )
{
- wxFAIL_MSG( "could not allocate data for DIB header" );
+ wxFAIL_MSG( T("could not allocate data for DIB header") );
free( data );
return;
}
lpBits = (unsigned char *) malloc( lpDIBh->bmiHeader.biSizeImage );
if( !lpBits )
{
- wxFAIL_MSG( "could not allocate data for DIB" );
+ wxFAIL_MSG( T("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;
ptbits += 3;
}
ptbits += padding;
- }
-
+ }
+
// similarly, set data according to the possible mask bitmap
if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() )
{
::SetTextColor( memdc, RGB( 0, 0, 0 ) );
::SetBkColor( memdc, RGB( 255, 255, 255 ) );
::GetDIBits( memdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS );
- ::DeleteDC( memdc );
+ ::DeleteDC( memdc );
// background color set to RGB(16,16,16) in consistent with wxGTK
- unsigned char r=16, g=16, b=16;
+ unsigned char r=16, g=16, b=16;
ptdata = data;
ptbits = lpBits;
for( i=0; i<height; i++ )
ptbits += 3;
}
ptbits += padding;
- }
+ }
SetMaskColour( r, g, b );
SetMask( TRUE );
- }
+ }
else
{
SetMask( FALSE );
- }
- // free allocated resources
- ::ReleaseDC(NULL, hdc);
+ }
+ // free allocated resources
+ ::ReleaseDC(NULL, hdc);
free(lpDIBh);
free(lpBits);
}
#endif
+//-----------------------------------------------------------------------------
+// GTK conversion routines
+//-----------------------------------------------------------------------------
+
#ifdef __WXGTK__
#include "gtk/gtk.h"
#include "gdk/gdk.h"
#include "gdk/gdkx.h"
+#if (GTK_MINOR_VERSION > 0)
+#include "gdk/gdkrgb.h"
+#endif
+
wxBitmap wxImage::ConvertToBitmap() const
{
wxBitmap bitmap;
-
- wxCHECK_MSG( Ok(), bitmap, "invalid image" );
-
+
+ wxCHECK_MSG( Ok(), bitmap, T("invalid image") );
+
int width = GetWidth();
int height = GetHeight();
-
+
bitmap.SetHeight( height );
bitmap.SetWidth( width );
-
- // Create picture
-
+
+ bitmap.SetPixmap( gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, -1 ) );
+
+ // Retrieve depth
+
+ GdkVisual *visual = gdk_window_get_visual( bitmap.GetPixmap() );
+ if (visual == NULL) visual = gdk_visual_get_system();
+ int bpp = visual->depth;
+
+ bitmap.SetDepth( bpp );
+
+ if ((bpp == 16) && (visual->red_mask != 0xf800)) bpp = 15;
+ if (bpp < 8) bpp = 8;
+
+#if (GTK_MINOR_VERSION > 0)
+
+ if (!HasMask() && (bpp > 8))
+ {
+ static bool s_hasInitialized = FALSE;
+
+ if (!s_hasInitialized)
+ {
+ gdk_rgb_init();
+ s_hasInitialized = TRUE;
+ }
+
+ GdkGC *gc = gdk_gc_new( bitmap.GetPixmap() );
+
+ gdk_draw_rgb_image( bitmap.GetPixmap(),
+ gc,
+ 0, 0,
+ width, height,
+ GDK_RGB_DITHER_NONE,
+ GetData(),
+ width*3 );
+
+ gdk_gc_unref( gc );
+
+ return bitmap;
+ }
+
+#endif
+
+ // Create picture image
+
GdkImage *data_image =
gdk_image_new( GDK_IMAGE_FASTEST, gdk_visual_get_system(), width, height );
-
- bitmap.SetPixmap( gdk_pixmap_new( (GdkWindow*)&gdk_root_parent, width, height, -1 ) );
-
- // Create mask
-
+
+ // Create mask image
+
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();
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++)
{
index++;
int b = data[index];
index++;
-
+
if (HasMask())
{
if ((r == r_mask) && (b == b_mask) && (g == g_mask))
else
gdk_image_put_pixel( mask_image, x, y, 0 );
}
-
+
if (HasMask())
{
if ((r == r_mask) && (b == b_mask) && (g == g_mask))
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);
-
+
for (int i = 0; i < cmap->size; i++)
{
int rdiff = (r << 8) - colors[i].red;
if (sum < max) { pixel = i; max = sum; }
}
}
-
+
gdk_image_put_pixel( data_image, x, y, pixel );
-
+
break;
}
case 15:
}
} // 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" );
-
+ wxCHECK_RET( bitmap.Ok(), T("invalid bitmap") );
+
GdkImage *gdk_image = gdk_image_get( bitmap.GetPixmap(),
0, 0,
bitmap.GetWidth(), bitmap.GetHeight() );
-
- wxCHECK_RET( gdk_image, "couldn't create image" );
-
+
+ wxCHECK_RET( gdk_image, T("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" );
+ wxFAIL_MSG( T("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 );
+ wxInt32 pixel = gdk_image_get_pixel( gdk_image, i, j );
+ pixel = wxINT32_SWAP_ON_BE( pixel );
if (bpp <= 8)
{
data[pos] = cmap->colors[pixel].red >> 8;
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 );
data[pos+2] = 16;
}
}
-
+
pos += 3;
}
}
-
+
gdk_image_destroy( gdk_image );
if (gdk_image_mask) gdk_image_destroy( gdk_image_mask );
}
#endif
+//-----------------------------------------------------------------------------
+// Motif conversion routines
+//-----------------------------------------------------------------------------
+
#ifdef __WXMOTIF__
#include <Xm/Xm.h>
wxBitmap wxImage::ConvertToBitmap() const
{
wxBitmap bitmap;
-
- wxCHECK_MSG( Ok(), bitmap, "invalid image" );
+
+ wxCHECK_MSG( Ok(), bitmap, T("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;
- }
-
+
+ wxCHECK_MSG( vi, wxNullBitmap, T("no visual") );
+
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->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++)
{
index++;
int b = data[index];
index++;
-
+
/*
if (HasMask())
{
gdk_image_put_pixel( mask_image, x, y, 0 );
}
*/
-
+
switch (bpp)
{
case 8:
if (wxTheApp->m_colorCube)
{
pixel = wxTheApp->m_colorCube
- [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
- }
+ [ ((r & 0xf8) << 7) + ((g & 0xf8) << 2) + ((b & 0xf8) >> 3) ];
+ }
else
{
*/
}
} // 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" );
-
+ wxCHECK_RET( bitmap.Ok(), T("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" );
-
+
+ wxCHECK_RET( ximage, T("couldn't create image") );
+
Create( bitmap.GetWidth(), bitmap.GetHeight() );
char unsigned *data = GetData();
-
+
if (!data)
{
XDestroyImage( ximage );
- wxFAIL_MSG( "couldn't create image" );
+ wxFAIL_MSG( T("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;
- }
-
+
+ wxCHECK_RET( vi, T("no visual") );
+
if ((bpp == 16) && (vi->red_mask != 0xf800)) bpp = 15;
-
+
XFree( vi );
-
+
XColor colors[256];
if (bpp == 8)
{
Colormap cmap = (Colormap)wxTheApp->GetMainColormap( dpy );
-
+
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++)
{
data[pos+1] = (pixel >> 8) & 0xff;
data[pos+2] = pixel & 0xff;
}
-
+
/*
if (gdk_image_mask)
{
}
}
*/
-
+
pos += 3;
}
}
-
+
XDestroyImage( ximage );
/*
if (gdk_image_mask) gdk_image_destroy( gdk_image_mask );
};
IMPLEMENT_DYNAMIC_CLASS(wxImageModule, wxModule)
-
projects / wxWidgets.git / blobdiff