+#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"
+
+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;
+ 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 );
+ }
+
+ switch (bpp)
+ {
+ case 8:
+ {
+ GdkColormap *cmap = gtk_widget_get_default_colormap();
+ GdkColor *colors = cmap->colors;
+ int max = 3 * (65536);
+ int index = -1;
+
+ for (int i = 0; i < cmap->size; i++)
+ {
+ int rdiff = (r << 8) - colors[i].red;
+ int gdiff = (g << 8) - colors[i].green;
+ int bdiff = (b << 8) - colors[i].blue;
+ int sum = ABS (rdiff) + ABS (gdiff) + ABS (bdiff);
+ if (sum < max) { index = i; max = sum; }
+ }
+
+ gdk_image_put_pixel( data_image, x, y, index );
+
+ break;
+ }
+ case 15:
+ {
+ guint32 pixel = ((r & 0xf8) << 7) | ((g & 0xf8) << 2) | ((b & 0xf8) >> 3);
+ gdk_image_put_pixel( data_image, x, y, pixel );
+ break;
+ }
+ case 16:
+ {
+ guint32 pixel = ((r & 0xf8) << 8) | ((g & 0xfc) << 3) | ((b & 0xf8) >> 3);
+ gdk_image_put_pixel( data_image, x, y, pixel );
+ break;
+ }
+ case 32:
+ case 24:
+ {
+ guint32 pixel = 0;
+ switch (b_o)
+ {
+ case RGB: pixel = (r << 16) | (g << 8) | b; break;
+ case RBG: pixel = (r << 16) | (b << 8) | g; break;
+ case BRG: pixel = (b << 16) | (r << 8) | g; break;
+ case BGR: pixel = (b << 16) | (g << 8) | r; break;
+ case GRB: pixel = (g << 16) | (r << 8) | b; break;
+ case GBR: pixel = (g << 16) | (b << 8) | r; break;
+ }
+ gdk_image_put_pixel( data_image, x, y, pixel );
+ }
+ default: break;
+ }
+ } // 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
projects / wxWidgets.git / blobdiff