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SGI: cast allocation calculations

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In order to avoid overflows when calculating needed memory, cast the
first variable used into a large enough type so the whole calculation is
done in that type.
This commit is contained in:
Nils Philippsen 2009-12-07 16:21:44 +01:00
parent daaf1d2b97
commit 838be627be
1 changed files with 4 additions and 4 deletions
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8
plug-ins/file-sgi/sgi.c
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@ -420,14 +420,14 @@ load_image (const gchar *filename,
*/
tile_height = gimp_tile_height ();
pixel = g_new (guchar, tile_height * sgip->xsize * bytes);
pixel = g_new (guchar, ((gsize) tile_height) * sgip->xsize * bytes);
pixels = g_new (guchar *, tile_height);
for (i = 0; i < tile_height; i ++)
pixels[i] = pixel + sgip->xsize * bytes * i;
rows = g_new (unsigned short *, sgip->zsize);
rows[0] = g_new (unsigned short, sgip->xsize * sgip->zsize);
rows[0] = g_new (unsigned short, ((gsize) sgip->xsize) * sgip->zsize);
for (i = 1; i < sgip->zsize; i ++)
rows[i] = rows[0] + i * sgip->xsize;
@ -580,14 +580,14 @@ save_image (const gchar *filename,
*/
tile_height = gimp_tile_height ();
pixel = g_new (guchar, tile_height * drawable->width * zsize);
pixel = g_new (guchar, ((gsize) tile_height) * drawable->width * zsize);
pixels = g_new (guchar *, tile_height);
for (i = 0; i < tile_height; i ++)
pixels[i]= pixel + drawable->width * zsize * i;
rows = g_new (gushort *, sgip->zsize);
rows[0] = g_new (gushort, sgip->xsize * sgip->zsize);
rows[0] = g_new (gushort, ((gsize) sgip->xsize) * sgip->zsize);
for (i = 1; i < sgip->zsize; i ++)
rows[i] = rows[0] + i * sgip->xsize;