- /*
- * 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 = getc(file);
- if (bpp == 1)
- {
- int bit = 0;
-
- for (bit = 0; bit < 8; bit++)
- {
- index = ((aByte & (0x80 >> bit)) ? 1 : 0);
- ptr[poffset] = cmap[index].r;
- ptr[poffset + 1] = cmap[index].g;
- ptr[poffset + 2] = cmap[index].b;
- column++;
- }
- }
- else if (bpp == 4)
- {
- if (comp == BI_RLE4)
- {
- wxLogError( "can't deal with 4bit encoded yet.\n");
- image->Destroy();
- free(cmap);
- return FALSE;
- }
- else
- {
- int nibble = 0;
-
- for (nibble = 0; nibble < 2; nibble++)
- {
- index = ((aByte & (0xF0 >> nibble * 4)) >> (!nibble * 4));
- if (index >= 16)
- index = 15;
- ptr[poffset] = cmap[index].r;
- ptr[poffset + 1] = cmap[index].g;
- ptr[poffset + 2] = cmap[index].b;
- column++;
- }
- }
- }
- else if (bpp == 8)
- {
- if (comp == BI_RLE8)
- {
- unsigned char first;
-
- first = aByte;
- aByte = getc(file);
- if (first == 0)
- {
- if (aByte == 0)
- {
-/* column = width; */
- }
- else if (aByte == 1)
- {
- column = width;
- line = -1;
- }
- else if (aByte == 2)
- {
- aByte = getc(file);
- column += aByte;
- linepos = column * bpp / 8;
- aByte = getc(file);
- line += aByte;
- }
- else
- {
- int absolute = aByte;
-
- for (i = 0; i < absolute; i++)
- {
- linepos++;
- aByte = getc(file);
- ptr[poffset] = cmap[aByte].r;
- ptr[poffset + 1] = cmap[aByte].g;
- ptr[poffset + 2] = cmap[aByte].b;
- column++;
- }
- if (absolute & 0x01)
- aByte = getc(file);
- }
- }
- else
- {
- for (i = 0; i < first; i++)
- {
- ptr[poffset] = cmap[aByte].r;
- ptr[poffset + 1] = cmap[aByte].g;
- ptr[poffset + 2] = cmap[aByte].b;
- column++;
- linepos++;
- }
- }
- }
- else
- {
- ptr[poffset] = cmap[aByte].r;
- ptr[poffset + 1] = cmap[aByte].g;
- ptr[poffset + 2] = cmap[aByte].b;
- column++;
- linepos += size;
- }
- }
- }
- else if (bpp == 24)
- {
- linepos += fread(&bbuf, 1, 3, file);
- ptr[poffset] = (unsigned char)bbuf[2];
- ptr[poffset + 1] = (unsigned char)bbuf[1];
- ptr[poffset + 2] = (unsigned char)bbuf[0];
- column++;
- }
- else if (bpp == 16)
- {
- unsigned char temp;
-
- linepos += fread(&word, 2, 1, file);
- temp = (word & rmask) >> rshift;
- ptr[poffset] = temp;
- temp = (word & gmask) >> gshift;
- ptr[poffset + 1] = temp;
- temp = (word & bmask) >> gshift;
- ptr[poffset + 2] = temp;
- column++;
- }
- else
- {
- unsigned char temp;
-
- linepos += fread(&dword, 4, 1, file);
- temp = (dword & rmask) >> rshift;
- ptr[poffset] = temp;
- temp = (dword & gmask) >> gshift;
- ptr[poffset + 1] = temp;
- temp = (dword & bmask) >> bshift;
- ptr[poffset + 2] = temp;
- column++;
- }
- }
- while ((linepos < linesize) && (comp != 1) && (comp != 2))
- {
- int temp = fread(&aByte, 1, 1, file);
-
- linepos += temp;
- if (!temp)
- break;
- }
- }
- if (cmap) free(cmap);
-
- image->SetMask( FALSE );
-
- fclose(file);
- return TRUE;
-}
-
-#ifdef __WXMSW__
-
-wxBitmap wxImage::ConvertToBitmap() const
-{
-
- wxBitmap bitmap;
- wxCHECK_MSG( Ok(), bitmap, "invalid image" );
- int width = GetWidth();
- int height = GetHeight();
- bitmap.SetWidth( width );
- bitmap.SetHeight( height );
- bitmap.SetDepth( wxDisplayDepth() );
-
- int headersize = sizeof(BITMAPINFOHEADER);
- LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize );
- wxCHECK_MSG( lpDIBh, bitmap, "could not allocate memory for DIB header" );
-
-// Fill in the DIB header
- lpDIBh->bmiHeader.biSize = headersize;
- lpDIBh->bmiHeader.biWidth = width;
- lpDIBh->bmiHeader.biHeight = -height;
- lpDIBh->bmiHeader.biSizeImage = width * height * 3;
-
- lpDIBh->bmiHeader.biPlanes = 1;
- lpDIBh->bmiHeader.biBitCount = 24;
- lpDIBh->bmiHeader.biCompression = BI_RGB;
- lpDIBh->bmiHeader.biClrUsed = 0;
-
-// These seem not needed for our purpose here.
-// lpDIBh->bmiHeader.biClrImportant = 0;
-// lpDIBh->bmiHeader.biXPelsPerMeter = 0;
-// lpDIBh->bmiHeader.biYPelsPerMeter = 0;
-
- unsigned char *lpBits = (unsigned char *) malloc( width*height*3 );
- if( !lpBits )
- {
- wxFAIL_MSG( "could not allocate memory for DIB" );
- free( lpDIBh );
- return bitmap;
- }
-
- unsigned char *data = GetData();
-
- unsigned char *ptdata = data, *ptbits = lpBits;
- for( int i=0; i<width*height; i++ )
- {
- *(ptbits++) = *(ptdata+2);
- *(ptbits++) = *(ptdata+1);
- *(ptbits++) = *(ptdata );
- ptdata += 3;
- }
-
- HDC hdc = ::GetDC(NULL);
-
- HBITMAP hbitmap;
- 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 );
-
- if( HasMask() )
- {
- unsigned char r = GetMaskRed();
- unsigned char g = GetMaskGreen();
- unsigned char b = GetMaskBlue();
- unsigned char zero = 0, one = 255;
- ptdata = data;
- ptbits = lpBits;
- for( int i=0; i<width*height; i++ )
- {
- if( (*(ptdata++)!=r) | (*(ptdata++)!=g) | (*(ptdata++)!=b) )
- {
- *(ptbits++) = one;
- *(ptbits++) = one;
- *(ptbits++) = one;
- }
- else
- {
- *(ptbits++) = zero;
- *(ptbits++) = zero;
- *(ptbits++) = zero;
- }
- }
- hbitmap = ::CreateBitmap( (WORD)width, (WORD)height, 1, 1, NULL );
- ::SetDIBits( hdc, hbitmap, 0, (WORD)height, lpBits, lpDIBh, DIB_RGB_COLORS);
- wxMask *mask = new wxMask();
- mask->SetMaskBitmap( (WXHBITMAP) hbitmap );
- bitmap.SetMask( mask );
-
-/* The following can also be used but is slow to run
- wxColour colour( GetMaskRed(), GetMaskGreen(), GetMaskBlue());
- wxMask *mask = new wxMask( bitmap, colour );
- bitmap.SetMask( mask );
-*/
- }
-
- ::ReleaseDC(NULL, hdc);
- free(lpDIBh);
- free(lpBits);
-
- if( bitmap.GetHBITMAP() )
- bitmap.SetOk( TRUE );
- else
- bitmap.SetOk( FALSE );
-
- return bitmap;
-}
-
-
-wxImage::wxImage( const wxBitmap &bitmap )
-{
- if( !bitmap.Ok() )
- {
- wxFAIL_MSG( "invalid bitmap" );
- return;
- }
-
- int width = bitmap.GetWidth();
- int height = bitmap.GetHeight();
- Create( width, height );
- unsigned char *data = GetData();
- if( !data )
- {
- wxFAIL_MSG( "could not allocate data for image" );
- return;
- }
-
- int headersize = sizeof(BITMAPINFOHEADER);
- LPBITMAPINFO lpDIBh = (BITMAPINFO *) malloc( headersize );
- if( !lpDIBh )
- {
- wxFAIL_MSG( "could not allocate data for DIB header" );
- free( data );
- return;
- }
-
-// Fill in the DIB header
- lpDIBh->bmiHeader.biSize = headersize;
- lpDIBh->bmiHeader.biWidth = width;
- lpDIBh->bmiHeader.biHeight = -height;
- lpDIBh->bmiHeader.biSizeImage = width * height * 3;
-
- lpDIBh->bmiHeader.biPlanes = 1;
- lpDIBh->bmiHeader.biBitCount = 24;
- lpDIBh->bmiHeader.biCompression = BI_RGB;
- lpDIBh->bmiHeader.biClrUsed = 0;
-
-// These seem not needed for our purpose here.
-// lpDIBh->bmiHeader.biClrImportant = 0;
-// lpDIBh->bmiHeader.biXPelsPerMeter = 0;
-// lpDIBh->bmiHeader.biYPelsPerMeter = 0;
-
- unsigned char *lpBits = (unsigned char *) malloc( width*height*3 );
- if( !lpBits )
- {
- wxFAIL_MSG( "could not allocate data for DIB" );
- free( data );
- free( lpDIBh );
- return;
- }
-
- HBITMAP hbitmap;
- hbitmap = (HBITMAP) bitmap.GetHBITMAP();
- HDC hdc = ::GetDC(NULL);
- ::GetDIBits( hdc, hbitmap, 0, height, lpBits, lpDIBh, DIB_RGB_COLORS );
-
- unsigned char *ptdata = data, *ptbits = lpBits;
- for( int i=0; i<width*height; i++ )
- {
- *(ptdata++) = *(ptbits+2);
- *(ptdata++) = *(ptbits+1);
- *(ptdata++) = *(ptbits );
- ptbits += 3;
- }
-
- if( bitmap.GetMask() && bitmap.GetMask()->GetMaskBitmap() )
- {
- hbitmap = (HBITMAP) bitmap.GetMask()->GetMaskBitmap();
- 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 );
- unsigned char r=16, g=16, b=16; // background set to RGB(16,16,16)
- ptdata = data;
- ptbits = lpBits;
- for( int i=0; i<width*height; i++ )
- {
- if( *ptbits != 0 )
- {
- *(ptdata++) = r;
- *(ptdata++) = g;
- *(ptdata++) = b;
- }
- ptbits += 3;
- }
- SetMaskColour( r, g, b );
- }
-
- ::ReleaseDC(NULL, hdc);
- free(lpDIBh);
- free(lpBits);
-}
-
-#endif
-
-#ifdef __WXGTK__
-
-#include "gtk/gtk.h"
-#include "gdk/gdk.h"
-#include "gdk/gdkx.h"