It seems you have a problem with reading the piece-image files (not GTK related). Are you sure the svg piece files are properly installed? (e.g. in /usr/local/share/games/xboard/themes/default/*.svg)
The code where this happens is
Code: Select all
if(!svgPieces[color][piece]) { // try to freshly render cached svg pieces first, to supply the source bitmap
svgPieces[color][piece] = LoadSVG("", color, piece); // this fills pngPieceImages if we had cached svg with bitmap of wanted size
}
if(!pngPieceImages[color][piece]) { // we don't have cached bitmap (implying we did not have cached svg)
if(*appData.pieceDirectory) { // user specified piece directory
snprintf(buf, MSG_SIZ, "%s/%s%s.png", appData.pieceDirectory, color ? "Black" : "White", pngPieceNames[piece]);
pngPieceImages[color][piece] = img = cairo_image_surface_create_from_png (buf); // try if there are png pieces there
if(cairo_surface_status(img) != CAIRO_STATUS_SUCCESS) { // there were not
svgPieces[color][piece] = LoadSVG(appData.pieceDirectory, color, piece); // so try if he has svg there
}
}
}
if(!pngPieceImages[color][piece]) { // we still did not manage to acquire a piece bitmap
if(!(svgPieces[color][piece] = LoadSVG(SVGDIR, color, piece))) // try to fall back on installed svg
DisplayError(_("No default pieces installed\nSelect your own -pieceImageDirectory"), 0); // give up
}
img = pngPieceImages[color][piece];
// create new bitmap to hold scaled piece image (and remove any old)
if(pngPieceBitmaps2[color][piece]) cairo_surface_destroy (pngPieceBitmaps2[color][piece]);
pngPieceBitmaps2[color][piece] = cs = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, squareSize, squareSize);
if(piece <= WhiteKing) pngPieceBitmaps[color][piece] = cs;
// scaled copying of the raw png image
cr = cairo_create(cs);
w = cairo_image_surface_get_width (img); // <------------------------------ Line 302
h = cairo_image_surface_get_height (img);
cairo_scale(cr, squareSize/w, squareSize/h);
cairo_set_source_surface (cr, img, 0, 0);
cairo_paint (cr);
cairo_destroy (cr);
It seems 'img' is a NULL pointer here, which seems only possible if LoadSVG returned a NULL pointer
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RsvgHandle *
LoadSVG (char *dir, int color, int piece)
{
char buf[MSG_SIZ];
RsvgHandle *svg=svgPieces[color][piece];
RsvgDimensionData svg_dimensions;
GError **svgerror=NULL;
cairo_surface_t *img;
cairo_t *cr;
snprintf(buf, MSG_SIZ, "%s/%s%s.svg", dir, color ? "Black" : "White", pngPieceNames[piece]);
if(svg || *dir && (svg = rsvg_handle_new_from_file(buf,svgerror))) {
rsvg_handle_get_dimensions(svg, &svg_dimensions);
img = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, squareSize, squareSize);
cr = cairo_create(img);
cairo_scale(cr, squareSize/(double) svg_dimensions.width, squareSize/(double) svg_dimensions.height);
rsvg_handle_render_cairo(svg, cr);
if(cairo_surface_status(img) == CAIRO_STATUS_SUCCESS) {
if(pngPieceImages[color][piece]) cairo_surface_destroy(pngPieceImages[color][piece]);
pngPieceImages[color][piece] = img;
}
cairo_destroy(cr);
return svg;
}
return NULL;
}
I just compiled it on my mac but when I try to execute i get a segmentation fault 11. I did receive a bunch of warnings during the make process that might have something to do with it. I know this all is still very pre-alpha. Would you still want to see them?
